/*
Theme Name: AISC 26 Landing
Theme URI: https://aisc26.edu.vn
Author: AISC Team
Description: Landing page cho cuoc thi AISC'26 - Advanced Information Systems Contest 2026.
Version: 1.0
Requires at least: 5.0
Requires PHP: 7.2
*/

/* AISC'26 - Advanced Information Systems Contest 2026 */

/* ============================================================================
   GLOBAL STYLES
   ============================================================================ */

:root {
    --primary-color: #b91c2c;
    --primary-color-rgb: 185, 28, 44;
    --primary-light: #d94452;
    --secondary-color: #2b2b31;
    --accent-color: #a88856;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;

    --bg-color: #ffffff;
    --bg-light: #f6f6f7;
    --bg-lighter: #ececee;
    --text-color: #232326;
    --text-light: #6e6e76;
    --border-color: #e4e4e7;

    --gray-100: #f6f6f7;
    --gray-200: #ececee;
    --gray-300: #d8d8dc;
    --gray-600: #6e6e76;
    --gray-800: #2b2b31;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Spacing scale */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.5rem;
    --space-6: 2rem;
    --space-7: 2.5rem;
    --space-8: 3.5rem;

    /* Radius scale */
    --radius-xs: 0.375rem;
    --radius-sm: 0.75rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;

    /* Font-size scale */
    --fs-xs: 0.75rem;
    --fs-sm: 0.875rem;
    --fs-base: 1rem;
    --fs-md: 1.125rem;
    --fs-lg: 1.25rem;
    --fs-xl: 1.5rem;
    --fs-2xl: 1.875rem;
    --fs-3xl: 2.5rem;
    --fs-4xl: 3.5rem;

    /* Shared vertical rhythm for .section */
    --section-space-y: 3.5rem;
    --section-space-y-mobile: 2.25rem;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Be Vietnam Pro', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    letter-spacing: 0.5px;
}

/* ============================================================================
   TYPOGRAPHY
   ============================================================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: 900;
    line-height: 1.2;
    letter-spacing: -0.5px;
}

h1 { font-size: var(--fs-4xl); }
h2 { font-size: var(--fs-3xl); }
h3 { font-size: var(--fs-2xl); }
h4 { font-size: var(--fs-xl); }
h5 { font-size: var(--fs-lg); }
h6 { font-size: var(--fs-base); }

p { margin-bottom: 1rem; }

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gradient-text-orange {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================================================
   BUTTONS
   ============================================================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 700;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.25s ease, background 0.25s ease, color 0.25s ease;
    text-decoration: none;
    white-space: nowrap;
}

@media (max-width: 480px) {
    /* white-space:nowrap above is fine for short labels, but forces long
       Vietnamese button text (e.g. "Xem lịch trình chi tiết") onto one line
       no matter how narrow the screen is, overflowing past the button edge. */
    .btn {
        white-space: normal;
        text-align: center;
    }
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    box-shadow: 0 4px 12px rgba(185, 28, 44, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(185, 28, 44, 0.32);
}

.btn:active {
    transform: translateY(0) scale(0.97);
}

.hero-ctas .btn-primary {
    position: relative;
    overflow: hidden;
}

.hero-ctas .btn-primary::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: -60%;
    width: 40%;
    background: linear-gradient(115deg, transparent, rgba(255, 255, 255, 0.5), transparent);
    animation: heroCtaShine 3.2s ease-in-out infinite;
}

@keyframes heroCtaShine {
    0% { left: -60%; }
    35%, 100% { left: 130%; }
}

@media (prefers-reduced-motion: reduce) {
    .hero-ctas .btn-primary::after { animation: none; display: none; }
}

@keyframes btnPulseGlow {
    0%, 100% { box-shadow: 0 4px 15px rgba(185, 28, 44, 0.35), 0 0 0 0 rgba(185, 28, 44, 0.35); }
    50% { box-shadow: 0 4px 15px rgba(185, 28, 44, 0.35), 0 0 0 8px rgba(185, 28, 44, 0); }
}

.btn-pulse {
    animation: btnPulseGlow 2.2s ease-in-out infinite;
}

.btn-pulse:hover {
    animation-play-state: paused;
}

@media (prefers-reduced-motion: reduce) {
    .btn-pulse {
        animation: none;
    }
}

.btn-outline {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    background: transparent;
}

.btn-outline:hover {
    background: rgba(185, 28, 44, 0.1);
}

.btn-text {
    background: transparent;
    color: var(--primary-color);
    padding: 0.5rem 0;
}

.btn-text:hover {
    color: var(--primary-light);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.w-full {
    width: 100%;
}

/* ============================================================================
   NAVIGATION
   ============================================================================ */

.topbar {
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    color: #fff;
    padding: 0.55rem 0;
}

.topbar-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.topbar-tagline {
    margin: 0;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    white-space: nowrap;
}

.topbar-contacts {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.topbar-contact-item {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: #fff;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0.92;
    transition: opacity 0.2s ease;
}

.topbar-contact-item:hover {
    opacity: 1;
    text-decoration: underline;
}

.topbar-contact-item .icon-svg {
    width: 1rem;
    height: 1rem;
}

.topbar-divider {
    width: 1px;
    height: 14px;
    background: rgba(255, 255, 255, 0.35);
}

@media (max-width: 900px) {
    .topbar-contact-item span {
        display: none;
    }
}

@media (max-width: 768px) {
    .topbar-container {
        flex-direction: column;
        gap: 0.5rem;
        padding: 0.65rem 1rem;
        text-align: center;
    }

    .topbar-tagline {
        white-space: normal;
    }

    .topbar-contacts {
        justify-content: center;
        flex-wrap: wrap;
        gap: 0.75rem 1.25rem;
    }

    .topbar-contact-item span {
        display: inline;
    }

    .topbar-divider {
        display: none;
    }
}

@media (max-width: 480px) {
    .topbar-tagline {
        font-size: 0.68rem;
        letter-spacing: 0.05em;
    }

    .topbar-contact-item span {
        display: none;
    }
}

.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    transition: box-shadow 0.3s ease, padding 0.3s ease;
}

.navbar.is-scrolled {
    padding: 0.75rem 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.navbar-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-logo {
    display: flex;
    align-items: center;
}

.navbar-logo-img {
    display: block;
    height: 45px;
    width: auto;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    position: relative;
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    letter-spacing: 0.01em;
    padding-bottom: 0.4rem;
    transition: color 0.25s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    right: 100%;
    bottom: 0;
    height: 2px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link:hover::after,
.nav-link.active::after {
    right: 0;
}

.nav-link.active {
    color: var(--primary-color);
    font-weight: 600;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    gap: 0.4rem;
}

.mobile-menu-toggle span {
    width: 1.5rem;
    height: 2px;
    background: var(--text-color);
    transition: all 0.3s ease;
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: white;
    padding: 1.5rem;
    flex-direction: column;
    gap: 1rem;
    z-index: 999;
    border-bottom: 1px solid var(--border-color);
}

.mobile-nav-link {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 600;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
    transition: color 0.25s ease, padding-left 0.25s ease;
}

.mobile-nav-link.active {
    color: var(--primary-color);
    padding-left: 0.5rem;
}

@media (max-width: 768px) {
    .desktop { display: none !important; }
    .hidden-mobile { display: none !important; }
    .mobile-menu-toggle { display: flex; }
    
    .mobile-menu.active {
        display: flex;
    }

    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
}

/* ============================================================================
   PAGE BANNER (sub-pages)
   ============================================================================ */

.page-banner {
    position: relative;
    min-height: 180px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 3rem 0 2.25rem;
    text-align: center;
    background: var(--bg-light);
    border-bottom: 1px solid var(--border-color);
    color: var(--text-color);
    overflow: hidden;
}

.page-banner::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 64px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
}

.page-banner .container {
    position: relative;
    z-index: 1;
}

.page-banner-eyebrow {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: rgba(185, 28, 44, 0.08);
    border: 1px solid rgba(185, 28, 44, 0.25);
    color: var(--primary-color);
    border-radius: var(--radius-xl);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    margin-bottom: 1.25rem;
}

.page-banner h1 {
    font-size: 2.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.page-banner p {
    font-size: 1rem;
    color: var(--text-light);
    max-width: 640px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .page-banner { min-height: 160px; padding: 2.5rem 0 2rem; }
    .page-banner h1 { font-size: 1.6rem; }
}

/* ============================================================================
   SUBMISSION CTA BANNER (front page)
   ============================================================================ */

.submit-cta-section {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    color: white;
    text-align: center;
}

.submit-cta-section .section-title,
.submit-cta-section .section-subtitle {
    color: white;
}

.submit-cta-section .section-subtitle {
    color: rgba(255, 255, 255, 0.85);
}

.submit-cta-section .btn-primary {
    background: white;
    color: var(--primary-color);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.submit-cta-section .btn-primary:hover {
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.submit-cta-section .btn-outline {
    border-color: white;
    color: white;
}

.submit-cta-section .btn-outline:hover {
    background: rgba(255, 255, 255, 0.15);
}

/* ============================================================================
   SUBMISSION FORM (Nộp Bài page)
   ============================================================================ */

.submit-form-section {
    background: linear-gradient(180deg, #ffffff 0%, #f3f4f6 100%);
}

.submit-form-wrapper {
    max-width: 760px;
    margin: 0 auto;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
}

.submit-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.submit-form-grid .form-group.full {
    grid-column: 1 / -1;
}

.submit-form-section .form-group label {
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.submit-form-section .form-group select,
.submit-form-section .form-group input[type="file"] {
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 1rem;
    background: white;
}

.submit-form-section .form-group select:focus,
.submit-form-section .form-group input:focus,
.submit-form-section .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.submit-form-hint {
    font-size: 0.8rem;
    color: var(--text-light);
    margin-top: 0.375rem;
}

@media (max-width: 900px) {
    .submit-form-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .submit-form-wrapper {
        padding: 1.75rem;
    }
}

/* ============================================================================
   SUBMIT FORM — SECTIONS, HONEYPOT, TEAM MEMBERS, TEMPLATE DOWNLOAD
   ============================================================================ */

.form-section-title {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--primary-color);
    margin: 2.25rem 0 1.25rem;
    padding-top: 1.75rem;
    border-top: 1px solid var(--border-color);
}

.form-section-title:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.hp-field {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.mb-3 {
    margin-bottom: 0.75rem;
}

.member-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1rem;
}

.member-card {
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    background: var(--bg-light);
}

.member-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.member-card-title {
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--text-color);
}

.member-remove-btn {
    width: 1.75rem;
    height: 1.75rem;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    background: white;
    color: var(--danger-color);
    font-weight: 700;
    line-height: 1;
    cursor: pointer;
    flex-shrink: 0;
    transition: all 0.2s ease;
}

.member-remove-btn:hover {
    border-color: var(--danger-color);
    background: rgba(239, 68, 68, 0.08);
}

.member-card-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.member-card-grid input {
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.9rem;
    background: white;
    width: 100%;
}

.member-card-grid input:focus {
    outline: none;
    border-color: var(--primary-color);
}

@media (max-width: 560px) {
    .member-card-grid {
        grid-template-columns: 1fr;
    }

    .member-card-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .member-card-header-actions {
        width: 100%;
        justify-content: space-between;
    }
}

.add-member-btn {
    margin-bottom: 1.5rem;
}

.add-member-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.member-card--submitter {
    border-color: rgba(var(--primary-color-rgb), 0.35);
    background: rgba(var(--primary-color-rgb), 0.03);
}

.member-card-header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.member-leader-radio {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-light);
    cursor: pointer;
    white-space: nowrap;
}

.member-leader-radio input[type="radio"] {
    width: 1rem;
    height: 1rem;
    accent-color: var(--primary-color);
    cursor: pointer;
}

.member-leader-radio:has(input:checked) {
    color: var(--primary-color);
}

.template-download-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    margin-bottom: 0.75rem;
}

.template-download-link .icon-svg {
    width: 1rem;
    height: 1rem;
}

.template-download-link:hover {
    text-decoration: underline;
}

.commitment-list {
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
    margin-bottom: 1.5rem;
}

.commitment-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.92rem;
    color: var(--text-color);
    line-height: 1.5;
    cursor: pointer;
}

.commitment-item input[type="checkbox"] {
    width: 1.15rem;
    height: 1.15rem;
    margin-top: 0.15rem;
    accent-color: var(--primary-color);
    cursor: pointer;
    flex-shrink: 0;
}

.commitment-item a {
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: underline;
}

/* ============================================================================
   OTP EMAIL VERIFICATION
   ============================================================================ */

.otp-gate {
    max-width: 26rem;
    margin: 2rem auto 0;
    text-align: center;
}

.otp-gate-icon {
    width: 3.5rem;
    height: 3.5rem;
    margin: 0 auto 1rem;
    border-radius: 50%;
    background: rgba(185, 28, 44, 0.1);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.otp-gate-icon .icon-svg {
    width: 1.75rem;
    height: 1.75rem;
}

.otp-gate h3 {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.otp-gate-desc {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 1.75rem;
}

.otp-gate-step .form-group {
    text-align: left;
    margin-bottom: 1rem;
}

.otp-gate-step .otp-code-row {
    justify-content: center;
}

.otp-action-btn {
    white-space: nowrap;
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.otp-action-btn.is-loading {
    pointer-events: none;
    opacity: 0.85;
}

.btn-spinner {
    width: 1rem;
    height: 1rem;
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    flex-shrink: 0;
}

.btn-outline .btn-spinner {
    border: 2px solid rgba(185, 28, 44, 0.25);
    border-top-color: var(--primary-color);
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.otp-verify-desc {
    font-size: 0.85rem;
    color: var(--text-light);
    margin: 0 0 0.75rem;
}

.otp-code-row {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.otp-digit {
    width: 2.5rem;
    min-width: 0;
    height: 2.75rem;
    text-align: center;
    font-size: 1.25rem;
    font-weight: 700;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: inherit;
    background: white;
}

.otp-digit:focus {
    outline: none;
    border-color: var(--primary-color);
}

.otp-gate-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 0.85rem;
}

.otp-resend-link {
    background: none;
    border: none;
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--primary-color);
    cursor: pointer;
    padding: 0;
}

.otp-resend-link:disabled {
    color: var(--text-light);
    cursor: not-allowed;
}

.otp-status {
    margin: 0.6rem 0 0;
    font-size: 0.82rem;
    font-weight: 700;
    min-height: 1.1em;
}

.otp-status.is-error {
    color: var(--danger-color);
}

.otp-status.is-success {
    color: var(--success-color);
}

.verified-email-field {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.verified-email-field input {
    flex: 1;
    min-width: 0;
    background: var(--bg-light);
    color: var(--text-light);
}

.verified-email-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--success-color);
    white-space: nowrap;
    flex-shrink: 0;
}

.verified-email-badge .icon-svg {
    width: 0.9rem;
    height: 0.9rem;
}

.otp-change-link {
    background: none;
    border: none;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-light);
    text-decoration: underline;
    cursor: pointer;
    padding: 0;
    margin-top: 0.5rem;
}

.otp-gate-actions .otp-change-link {
    margin-top: 0;
}

@media (max-width: 480px) {
    .otp-digit {
        width: 100%;
        max-width: 2.75rem;
    }
}

/* ============================================================================
   SUBMIT STATUS MODAL (floating overlay for loading + success)
   ============================================================================ */

/* Several components (buttons, badges, this modal's own panels) set their
   own `display` unconditionally; without this, that declaration beats the
   `[hidden]` attribute whenever specificity/order favors it, so JS-toggled
   `.hidden = true/false` silently stops working. */
[hidden] {
    display: none !important;
}

.submit-modal-backdrop {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    background: rgba(15, 15, 20, 0.6);
    backdrop-filter: blur(2px);
    animation: modal-fade-in 0.2s ease;
}

@keyframes modal-fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

.submit-modal {
    width: 100%;
    max-width: 26rem;
    max-height: 90vh;
    overflow-y: auto;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    animation: modal-pop-in 0.25s ease;
}

@keyframes modal-pop-in {
    from { transform: scale(0.92) translateY(8px); opacity: 0; }
    to { transform: scale(1) translateY(0); opacity: 1; }
}

.form-loading-overlay,
.form-success-view {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2.5rem;
}

@media (max-width: 480px) {
    .submit-modal-backdrop {
        padding: 1rem;
    }

    .form-loading-overlay,
    .form-success-view {
        padding: 1.75rem 1.25rem;
    }
}

.form-loading-spinner {
    width: 3.25rem;
    height: 3.25rem;
    border: 3px solid rgba(185, 28, 44, 0.12);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.85s cubic-bezier(0.5, 0.1, 0.5, 0.9) infinite;
    margin-bottom: 1.5rem;
}

.form-loading-title {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--text-color);
    letter-spacing: -0.01em;
    margin-bottom: 0.5rem;
}

.form-loading-note {
    font-size: 0.82rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.form-loading-steps {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 20rem;
}

.form-loading-steps li {
    font-size: 0.88rem;
    color: var(--text-light);
    position: relative;
    padding: 0.4rem 0 0.4rem 2.1rem;
    text-align: left;
    transition: color 0.3s ease;
}

.form-loading-steps li:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 0.6rem;
    top: 1.65rem;
    bottom: -0.4rem;
    width: 2px;
    background: var(--border-color);
    transition: background 0.3s ease 0.1s;
}

.form-loading-steps li.is-done:not(:last-child)::after {
    background: var(--success-color);
}

.form-loading-steps li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.55rem;
    width: 1.25rem;
    height: 1.25rem;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    background: white;
    box-sizing: border-box;
    transition: border-color 0.25s ease, background-color 0.25s ease;
    z-index: 1;
}

.form-loading-steps li.is-active {
    color: var(--text-color);
    font-weight: 700;
}

.form-loading-steps li.is-active::before {
    border-color: var(--primary-color);
    border-top-color: transparent;
    animation: spin 0.7s linear infinite;
}

.form-loading-steps li.is-done {
    color: var(--text-color);
}

.form-loading-steps li.is-done::before {
    border-color: var(--success-color);
    background: var(--success-color);
}

.step-checkmark {
    position: absolute;
    left: 0.19rem;
    top: 0.61rem;
    width: 0.87rem;
    height: 0.87rem;
    color: white;
    opacity: 0;
    transform: scale(0.4);
    transition: opacity 0.2s ease 0.1s, transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1) 0.1s;
    z-index: 2;
}

.step-checkmark svg {
    width: 100%;
    height: 100%;
    display: block;
}

.form-loading-steps li.is-done .step-checkmark {
    opacity: 1;
    transform: scale(1);
}

.form-success-icon {
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    background: rgba(16, 185, 129, 0.12);
    color: var(--success-color);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
}

.form-success-icon .icon-svg {
    width: 2rem;
    height: 2rem;
}

.form-success-view h3 {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--text-color);
    margin-bottom: 0.6rem;
}

.form-success-desc {
    font-size: 0.95rem;
    color: var(--text-light);
    max-width: 30rem;
    margin: 0 0 1.25rem;
}

.form-success-id {
    font-size: 1rem;
    font-weight: 800;
    color: var(--primary-color);
    background: rgba(185, 28, 44, 0.08);
    border: 1px solid rgba(185, 28, 44, 0.25);
    border-radius: var(--radius-sm);
    padding: 0.6rem 1.25rem;
    margin-bottom: 1rem;
}

.form-success-demo-note {
    font-size: 0.85rem;
    font-weight: 700;
    color: #92400e;
    background: rgba(245, 158, 11, 0.12);
    border: 1px solid rgba(245, 158, 11, 0.35);
    border-radius: var(--radius-sm);
    padding: 0.6rem 1rem;
    margin-bottom: 1rem;
}

.form-success-view .submit-form-hint {
    margin-bottom: 1.5rem;
}

/* ============================================================================
   FILE UPLOAD ZONE (drag & drop style)
   ============================================================================ */

.upload-zone {
    position: relative;
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    padding: 2rem 1.5rem;
    text-align: center;
    cursor: pointer;
    background: var(--bg-light);
    transition: all 0.3s ease;
}

.upload-zone:hover,
.upload-zone.drag {
    border-color: var(--primary-color);
    background: rgba(185, 28, 44, 0.05);
}

.upload-zone input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
    width: 100%;
    height: 100%;
}

.upload-zone-icon {
    width: 3rem;
    height: 3rem;
    margin: 0 auto 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    border-radius: 0.875rem;
    color: var(--primary-color);
}

.upload-zone-icon .icon-svg {
    width: 1.5rem;
    height: 1.5rem;
}

.icon-svg {
    width: 1.2em;
    height: 1.2em;
    vertical-align: -0.15em;
    flex-shrink: 0;
}

.upload-zone p {
    font-size: 0.95rem;
    color: var(--text-color);
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.upload-zone span {
    font-size: 0.8rem;
    color: var(--text-light);
}

.upload-file-chip {
    display: none;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    margin-top: 0.75rem;
    background: rgba(185, 28, 44, 0.06);
    border: 1px solid rgba(185, 28, 44, 0.25);
    border-radius: var(--radius-sm);
}

.upload-file-chip.on {
    display: flex;
}

.upload-file-chip .fc-name {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-color);
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.upload-file-chip .fc-size {
    font-size: 0.78rem;
    color: var(--text-light);
    flex-shrink: 0;
}

.upload-file-chip .fc-remove {
    cursor: pointer;
    color: var(--danger-color);
    font-weight: 700;
    flex-shrink: 0;
}

/* ============================================================================
   GLANCE CARD (Thông Tin Chi Tiết)
   ============================================================================ */

.glance-card {
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.glance-head {
    padding: 1.25rem 1.5rem 1rem;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    color: white;
    text-align: center;
}

.glance-badge {
    display: inline-block;
    padding: 0.375rem 1rem;
    background: rgba(255, 255, 255, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: var(--radius-xl);
    font-size: 0.78rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.glance-head h3 {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.glance-head p {
    margin: 0;
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.9rem;
}

.glance-rows {
    list-style: none;
    padding: 0.35rem 1.5rem 1.5rem;
    display: flex;
    flex-direction: column;
}

.glance-rows li {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    padding: 0.55rem 0;
    border-bottom: 1px solid var(--border-color);
}

.glance-rows li:last-child {
    border-bottom: none;
}

.glance-icon {
    flex-shrink: 0;
    width: 2.125rem;
    height: 2.125rem;
    border-radius: 0.625rem;
    background: var(--gray-100);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.glance-icon .icon-svg {
    width: 0.95rem;
    height: 0.95rem;
}

.glance-info {
    display: flex;
    flex-direction: column;
}

.glance-label {
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-light);
}

.glance-value {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--text-color);
    line-height: 1.4;
}

.glance-foot {
    display: flex;
    gap: 0.625rem;
    padding: 0.85rem 1.5rem 1.25rem;
    flex-wrap: wrap;
}

.glance-foot .btn {
    flex: 1;
    min-width: 140px;
}

/* ============================================================================
   HIGHLIGHT LIST (✨ bullet points)
   ============================================================================ */

.highlight-list {
    display: flex;
    flex-direction: column;
}

.highlight-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    padding: 1.1rem 0;
    border-bottom: 1px solid var(--border-color);
    transition: gap 0.25s ease;
}

.highlight-item:first-child {
    padding-top: 0;
}

.highlight-item:last-child {
    padding-bottom: 0;
    border-bottom: none;
}

.highlight-item:hover {
    gap: 1.15rem;
}

.highlight-item:hover .highlight-icon {
    background: var(--primary-color);
    color: white;
}

.highlight-icon {
    flex-shrink: 0;
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    background: var(--gray-100);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.25s ease, color 0.25s ease;
}

.highlight-icon .icon-svg {
    width: 1rem;
    height: 1rem;
}

.highlight-item p {
    margin: 0;
    color: var(--text-color);
    line-height: 1.7;
}

/* ============================================================================
   HERO SECTION
   ============================================================================ */

.hero-pattern {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(255, 255, 255, 0.35) 1.5px, transparent 1.5px);
    background-size: 26px 26px;
    opacity: 0.25;
    pointer-events: none;
}

.hero-network {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    -webkit-mask-image: linear-gradient(to right, transparent 0%, transparent 36%, black 52%, black 100%);
    mask-image: linear-gradient(to right, transparent 0%, transparent 36%, black 52%, black 100%);
}

.hero-section {
    position: relative;
    padding: 4rem 0 3rem;
    background: linear-gradient(135deg, #f9fafb 0%, #f4f4f6 100%);
    overflow: hidden;
}

.hero-columns {
    position: relative;
    z-index: 10;
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 2rem;
    align-items: center;
}

@keyframes heroReveal {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-reveal {
    opacity: 0;
    animation: heroReveal 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    animation-delay: var(--d, 0s);
}

@media (prefers-reduced-motion: reduce) {
    .hero-reveal {
        animation: none;
        opacity: 1;
    }
}

@media (max-width: 900px) {
    .hero-columns {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* Hero Carousel */
.hero-carousel {
    position: relative;
    border-radius: 1.25rem;
    overflow: hidden;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
    background: var(--gray-100);
}

.hero-carousel-col .carousel-title {
    font-size: 1.2rem;
}

.hero-carousel-col .carousel-subtitle {
    font-size: 0.85rem;
}

@media (max-width: 900px) {
    .hero-carousel-col .carousel-title {
        font-size: 1.1rem;
    }
}

.carousel-slides {
    position: relative;
    width: 100%;
    aspect-ratio: 8 / 5;
    overflow: hidden;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.carousel-slide.active {
    opacity: 1;
}

.carousel-caption-bar {
    position: relative;
    padding: 0.75rem 1.5rem 0.85rem;
    text-align: center;
    background: linear-gradient(115deg, var(--secondary-color) 0%, var(--secondary-color) 55%, var(--primary-color) 100%);
    color: white;
    overflow: hidden;
}

.carousel-caption-bar::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 85% 50%, rgba(255, 255, 255, 0.12), transparent 55%);
    pointer-events: none;
}

.carousel-title {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 0.25rem;
}

.carousel-subtitle {
    font-size: 1.25rem;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.75);
}

.carousel-controls {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.1rem;
    margin-top: 0.75rem;
}

.carousel-btn {
    flex-shrink: 0;
    width: 2.25rem;
    height: 2.25rem;
    border: none;
    background: rgba(255, 255, 255, 0.9);
    color: var(--text-color);
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.15rem;
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease, border-color 0.25s ease, background-color 0.25s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-btn:hover {
    background: white;
    transform: scale(1.1);
}

.carousel-indicators {
    display: flex;
    gap: 0.5rem;
}

.indicator {
    width: 0.75rem;
    height: 0.75rem;
    border-radius: 50%;
    border: none;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator.active {
    background: white;
    width: 2rem;
    border-radius: var(--radius-xs);
}

/* Hero Content */
.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
}

.hero-content .hero-ctas {
    justify-content: center;
}

.hero-ctas-sm {
    gap: 0.625rem;
}

.hero-ctas-sm .btn {
    border-radius: var(--radius-lg);
    padding: 0.5rem 1.125rem;
    font-size: 0.85rem;
}

.hero-content .hero-stats {
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
    margin: 1rem 0 0.25rem;
    padding: 1rem 0;
}

.hero-content .hero-stats .stat {
    border-left: 1px solid var(--border-color);
    padding-left: 0.75rem;
}

.hero-content .hero-stats .stat:first-child {
    border-left: none;
    padding-left: 0;
}

.hero-content .hero-countdown-num {
    font-size: 1.4rem;
}

.hero-content .stat-label {
    font-size: 0.75rem;
}

@media (max-width: 480px) {
    .hero-content .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .hero-content .hero-stats .stat:nth-child(odd) {
        border-left: none;
        padding-left: 0;
    }
}

.hero-countdown-caption {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.hero-countdown-num {
    font-size: 2rem;
    font-weight: 900;
    color: var(--primary-color);
    font-variant-numeric: tabular-nums;
}

.hero-countdown-num[data-cd="seconds"] {
    animation: countdownBlink 1s steps(2, end) infinite;
}

@keyframes countdownBlink {
    50% { opacity: 0.45; }
}

@media (prefers-reduced-motion: reduce) {
    .hero-countdown-num[data-cd="seconds"] { animation: none; }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.625rem 1.375rem;
    background: rgba(185, 28, 44, 0.1);
    border: 1px solid rgba(185, 28, 44, 0.3);
    border-radius: var(--radius-xl);
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1.25rem;
}

.pulse-dot {
    position: relative;
    flex-shrink: 0;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--primary-color);
}

.pulse-dot::after {
    content: '';
    position: absolute;
    inset: -5px;
    border-radius: 50%;
    border: 1px solid var(--primary-color);
    animation: pulseDotRing 2s ease-out infinite;
}

@keyframes pulseDotRing {
    0% { transform: scale(0.5); opacity: 0.9; }
    100% { transform: scale(2); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
    .pulse-dot::after { animation: none; opacity: 0; }
}

.hero-title {
    font-size: clamp(0.95rem, 1.9vw, 1.3rem);
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.01em;
    line-height: 1.3;
    white-space: nowrap;
    margin-bottom: 1.1rem;
}

@media (max-width: 560px) {
    .hero-title {
        white-space: normal;
    }
}

.hero-description {
    position: relative;
    margin: 1.1rem auto;
    max-width: 34rem;
    padding: 1rem 1.5rem 0.9rem;
    background: var(--bg-light);
    border: 1px solid rgba(28, 24, 20, 0.06);
    border-radius: 0.9rem;
    color: var(--text-color);
}

.hero-description::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 36px;
    height: 3px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
}

.hero-description p {
    position: relative;
    margin-bottom: 0;
    text-align: left;
    font-size: 0.9rem;
    font-weight: 500;
    line-height: 1.55;
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
    margin: 1rem 0;
}

.tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, rgba(185, 28, 44, 0.1), rgba(217, 68, 82, 0.1));
    border: 1px solid rgba(185, 28, 44, 0.2);
    border-radius: var(--radius-xl);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-color);
}

.hero-tagline {
    font-size: 1.125rem;
    font-weight: 300;
    color: var(--text-light);
    font-style: italic;
    margin: 1.25rem 0;
}

.hero-ctas {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin: 1.1rem 0;
    flex-wrap: wrap;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
    margin: 2.5rem 0 0.5rem;
    padding: 1.5rem 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 900;
    color: var(--primary-color);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-light);
    font-weight: 600;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

.scroll-indicator svg {
    width: 1.5rem;
    height: 1.5rem;
    color: var(--primary-color);
}

/* ============================================================================
   SECTIONS & CONTAINERS
   ============================================================================ */

.section {
    position: relative;
    padding: var(--section-space-y) 0;
}

.section.animate-in .section-title,
.section.animate-in .section-subtitle,
.section.animate-in .page-banner-eyebrow {
    animation: none;
}

.section-title,
.section-subtitle,
.projects-tabs,
.themes-grid,
.timeline-events,
.timeline-events-mobile,
.awards-grid,
.bonus-grid,
.judges-grid,
.sponsors-grid,
.sponsor-value-grid,
.partners-grid,
.testimonials-grid,
.about-grid,
.stats-grid,
.participants-grid,
.highlight-list,
.benefits-list,
.eligibility-list,
.table-scroll,
.fit-grid,
.process-timeline,
.flow-grid,
.theme-keywords,
.info-card-grid,
.score-bar-wrap,
.vote-steps-grid,
.point-card-grid,
.branch-grid,
.roadmap-grid,
.checklist-grid,
.mentor-grid {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.section.animate-in .section-title,
.section.animate-in .section-subtitle,
.section.animate-in .projects-tabs,
.section.animate-in .themes-grid,
.section.animate-in .timeline-events,
.section.animate-in .timeline-events-mobile,
.section.animate-in .awards-grid,
.section.animate-in .bonus-grid,
.section.animate-in .judges-grid,
.section.animate-in .sponsors-grid,
.section.animate-in .sponsor-value-grid,
.section.animate-in .partners-grid,
.section.animate-in .testimonials-grid,
.section.animate-in .about-grid,
.section.animate-in .stats-grid,
.section.animate-in .participants-grid,
.section.animate-in .highlight-list,
.section.animate-in .benefits-list,
.section.animate-in .eligibility-list,
.section.animate-in .table-scroll,
.section.animate-in .fit-grid,
.section.animate-in .process-timeline,
.section.animate-in .flow-grid,
.section.animate-in .theme-keywords,
.section.animate-in .info-card-grid,
.section.animate-in .score-bar-wrap,
.section.animate-in .vote-steps-grid,
.section.animate-in .point-card-grid,
.section.animate-in .branch-grid,
.section.animate-in .roadmap-grid,
.section.animate-in .checklist-grid,
.section.animate-in .mentor-grid {
    opacity: 1;
    transform: translateY(0);
}

.section.animate-in .section-subtitle {
    transition-delay: 0.08s;
}

@media (prefers-reduced-motion: reduce) {
    .section-title,
    .section-subtitle,
    .projects-tabs,
    .themes-grid,
    .timeline-events,
    .timeline-events-mobile,
    .awards-grid,
    .bonus-grid,
    .judges-grid,
    .sponsors-grid,
    .partners-grid,
    .testimonials-grid,
    .about-grid,
    .stats-grid,
    .participants-grid,
    .highlight-list,
    .benefits-list,
    .eligibility-list {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section-title {
    font-size: var(--fs-3xl);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 0.01em;
    margin-bottom: 1rem;
}

.section-title--left {
    text-align: left;
}

.section-title--sm {
    font-size: 1.75rem;
    white-space: nowrap;
    margin-bottom: 0.75rem;
}

@media (max-width: 560px) {
    .section-title--sm {
        white-space: normal;
    }
}

.section-eyebrow {
    display: inline-block;
    color: var(--primary-color);
    font-weight: 700;
    font-size: var(--fs-sm);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
}

.section-eyebrow--center {
    display: block;
    text-align: center;
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: var(--fs-md);
    margin-bottom: 2rem;
}

.section-alt-bg {
    background: linear-gradient(180deg, #ffffff 0%, #f3f4f6 100%);
}

.subsection-title {
    font-size: 1.75rem;
    margin-bottom: 2rem;
}

.subsection-title--center {
    text-align: center;
}

/* ============================================================================
   PROJECT SHOWCASE
   ============================================================================ */

.projects-showcase {
    position: relative;
    background: linear-gradient(180deg, #f3f4f6 0%, #ffffff 100%);
    overflow: hidden;
}

.projects-showcase::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 65% 55% at 88% 0%, rgba(var(--primary-color-rgb), 0.07), transparent 65%);
    pointer-events: none;
}

.projects-showcase .container {
    position: relative;
}

.projects-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.35rem;
    width: fit-content;
    max-width: 100%;
    margin: 0 auto 2.5rem;
    padding: 0.4rem;
    background: linear-gradient(180deg, #ffffff 0%, var(--bg-light) 100%);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md), inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.projects-tab {
    padding: 0.6rem 1.5rem;
    border: 2px solid transparent;
    background: transparent;
    border-radius: var(--radius-xl);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-light);
    cursor: pointer;
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease, border-color 0.25s ease, background-color 0.25s ease, color 0.25s ease;
}

.projects-tab:hover {
    border-color: rgba(var(--primary-color-rgb), 0.25);
    background: rgba(var(--primary-color-rgb), 0.06);
    color: var(--primary-color);
}

.projects-tab.active {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border-color: transparent;
    color: white;
    box-shadow: var(--shadow-md), 0 0 0 3px rgba(var(--primary-color-rgb), 0.12);
}

.projects-tab.active:hover {
    color: white;
}

.projects-tab:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.projects-panel {
    display: none;
}

.projects-panel.active {
    display: block;
}

.projects-carousel-wrap {
    position: relative;
}

.projects-carousel {
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.projects-carousel::-webkit-scrollbar {
    display: none;
}

/* Snap points fight the JS-driven auto-drift (each tiny scrollLeft nudge
   gets pulled back to the nearest card), so snapping is suspended while
   the row is drifting on its own and restored the moment a user interacts. */
.projects-carousel.is-auto-drifting {
    scroll-snap-type: none;
}

.projects-track {
    display: flex;
    gap: 1.5rem;
}

.poster-card {
    display: flex;
    flex-direction: column;
    flex: 0 0 calc((100% - 3 * 1.5rem) / 3.5);
    scroll-snap-align: start;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    background: white;
    text-align: left;
    font: inherit;
    padding: 0;
    cursor: pointer;
    opacity: 1;
    transform: translateY(0);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease, border-color 0.25s ease, opacity 0.3s ease;
}

.poster-card:hover,
.poster-card:focus-visible {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
    transform: translateY(-6px);
}

.poster-card:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.projects-panel.is-switching .poster-card {
    opacity: 0;
    transform: translateY(8px);
    transition-delay: 0s;
}

.poster-card.is-entering {
    opacity: 0;
    transform: translateY(12px);
}

.poster-media {
    position: relative;
    display: block;
}

.poster-media img {
    display: block;
    width: 100%;
    aspect-ratio: 3 / 4;
    object-fit: cover;
}

.poster-media::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(160deg, rgba(var(--primary-color-rgb), 0.08), rgba(var(--primary-color-rgb), 0.08));
    transition: opacity 0.3s ease;
}

.poster-card:hover .poster-media::after,
.poster-card:focus-visible .poster-media::after {
    opacity: 0;
}

.poster-badge {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    z-index: 2;
    padding: 0.3rem 0.7rem;
    border-radius: var(--radius-xs);
    background: var(--primary-color);
    color: white;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.poster-view {
    position: absolute;
    top: 50%;
    left: 50%;
    z-index: 2;
    transform: translate(-50%, -50%) scale(0.9);
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-xl);
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(4px);
    color: var(--text-color);
    font-weight: 700;
    font-size: 0.85rem;
    opacity: 0;
    transition: opacity 0.25s ease, transform 0.25s ease;
    pointer-events: none;
}

.poster-card:hover .poster-view,
.poster-card:focus-visible .poster-view {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.poster-info {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    padding: 0.9rem 1rem;
}

.poster-name {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-color);
}

.poster-meta {
    font-size: 0.78rem;
    color: var(--text-light);
}

@media (max-width: 640px) {
    .projects-track {
        gap: 1rem;
    }

    .poster-card {
        flex-basis: calc((100% - 1rem) / 1.2);
    }
}

.carousel-nav {
    position: absolute;
    top: 40%;
    transform: translateY(-50%);
    width: 2.75rem;
    height: 2.75rem;
    border: none;
    border-radius: 50%;
    background: white;
    color: var(--text-color);
    box-shadow: var(--shadow-lg);
    font-size: 1rem;
    cursor: pointer;
    z-index: 5;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease, background-color 0.25s ease, color 0.25s ease;
}

.carousel-nav.prev {
    left: -0.25rem;
}

.carousel-nav.next {
    right: -0.25rem;
}

.projects-carousel-wrap:hover .carousel-nav {
    opacity: 1;
    pointer-events: auto;
}

.carousel-nav:hover {
    background: var(--primary-color);
    color: white;
}

.carousel-nav:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.carousel-nav.is-hidden {
    opacity: 0;
    pointer-events: none;
}

/* Touch devices have no :hover, so the reveal-on-hover trick above would
   otherwise hide these buttons permanently — keep them visible instead. */
@media (hover: none) {
    .carousel-nav {
        opacity: 1;
        pointer-events: auto;
    }
}

.projects-empty {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-light);
    font-size: 0.95rem;
    background: var(--bg-light);
    border-radius: var(--radius-md);
    border: 1px dashed var(--border-color);
}

@media (prefers-reduced-motion: reduce) {
    .poster-card,
    .poster-card:hover,
    .poster-card:focus-visible {
        transform: none;
        transition: opacity 0.2s ease, border-color 0.2s ease;
    }

    .poster-card.is-entering,
    .projects-panel.is-switching .poster-card {
        transform: none;
        transition-delay: 0s;
    }
}

/* ============================================================================
   POSTER LIGHTBOX
   ============================================================================ */

.lightbox {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 3000;
    align-items: center;
    justify-content: center;
    padding: 2.5rem;
    background: rgba(20, 18, 17, 0.88);
    cursor: zoom-out;
}

.lightbox.active {
    display: flex;
}

.lightbox-img {
    max-width: 100%;
    max-height: 100%;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    animation: lightboxPop 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes lightboxPop {
    from { opacity: 0; transform: scale(0.94); }
    to { opacity: 1; transform: scale(1); }
}

.lightbox-close {
    position: absolute;
    top: 1.25rem;
    right: 1.5rem;
    width: 2.75rem;
    height: 2.75rem;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
    color: white;
    font-size: 1.75rem;
    line-height: 1;
    cursor: pointer;
    transition: background-color 0.25s ease, transform 0.25s ease;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.22);
    transform: rotate(90deg);
}

.lightbox-close:focus-visible,
.lightbox-arrow:focus-visible {
    outline: 2px solid var(--primary-light);
    outline-offset: 2px;
}

.lightbox-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 3rem;
    height: 3rem;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
    color: white;
    font-size: 1.1rem;
    cursor: pointer;
    z-index: 1;
    transition: background-color 0.25s ease, transform 0.25s ease;
}

.lightbox-arrow:hover {
    background: rgba(255, 255, 255, 0.22);
}

.lightbox-arrow.prev {
    left: 1.5rem;
}

.lightbox-arrow.next {
    right: 1.5rem;
}

.lightbox-arrow[hidden] {
    display: none;
}

@media (max-width: 640px) {
    .lightbox-arrow {
        width: 2.5rem;
        height: 2.5rem;
    }

    .lightbox-arrow.prev {
        left: 0.5rem;
    }

    .lightbox-arrow.next {
        right: 0.5rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .lightbox-img {
        animation: none;
    }
}

/* ============================================================================
   COUNTDOWN
   ============================================================================ */

.countdown-section {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
}

.countdown-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
    padding: 1.5rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-md);
}

.countdown-item {
    text-align: center;
}

.countdown-number {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 0.5rem;
}

.countdown-label {
    font-size: 0.875rem;
    opacity: 0.9;
}

.countdown-text {
    text-align: center;
    font-size: 1.125rem;
    margin-top: 2rem;
}

.countdown-highlight {
    font-weight: 900;
    font-size: 1.5rem;
}

/* Standalone countdown block used outside the red .countdown-section banner
   (e.g. lich-trinh.html) - sits on a light card instead, so text needs the
   brand color rather than the white inherited from that banner. */
.countdown-standalone .countdown-grid {
    margin-top: 4rem;
    background: var(--bg-light);
}

.countdown-standalone .countdown-number,
.countdown-standalone .countdown-highlight {
    color: var(--primary-color);
}

.countdown-standalone .countdown-label {
    color: var(--text-light);
}

/* ============================================================================
   ABOUT SECTION
   ============================================================================ */

.about-section {
    position: relative;
    background: linear-gradient(180deg, #ffffff 0%, #f3f4f6 100%);
    overflow: hidden;
}

.about-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 65% 55% at 12% 0%, rgba(185, 28, 44, 0.07), transparent 65%);
    pointer-events: none;
}

.about-grid {
    display: grid;
    grid-template-columns: 6fr 4fr;
    gap: 2.5rem;
    align-items: start;
    max-width: 1180px;
    margin: 0 auto;
}

.about-cards {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.about-card {
    padding: 1.5rem;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease, border-color 0.25s ease, background-color 0.25s ease;
}

.about-card:hover {
    border-color: var(--primary-color);
    background: rgba(185, 28, 44, 0.05);
}

.about-ctas {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.about-visual {
    aspect-ratio: 1;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

.visual-box {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    border-radius: var(--radius-lg);
}

@media (max-width: 900px) {
    .about-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================================================
   STATS SECTION
   ============================================================================ */

.stats-section {
    background: linear-gradient(180deg, #f3f4f6 0%, #ffffff 100%);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.stat-card {
    text-align: center;
    padding: 1.5rem;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease, border-color 0.25s ease, background-color 0.25s ease;
}

.stat-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.stat-big {
    font-size: 2rem;
    font-weight: 900;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-small {
    color: var(--text-light);
    font-weight: 600;
}

/* ============================================================================
   JOURNEY TIMELINE (Giới Thiệu page)
   ============================================================================ */

.journey-track {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0;
    margin-top: 2.5rem;
    padding: 1rem 0;
}

.journey-year {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.6rem;
    position: relative;
    padding: 0 1.75rem;
}

.journey-year:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 0.35rem;
    left: 100%;
    width: 1.5rem;
    height: 2px;
    background: var(--border-color);
}

.journey-dot {
    width: 0.9rem;
    height: 0.9rem;
    border-radius: 50%;
    background: var(--border-color);
}

.journey-label {
    font-weight: 700;
    color: var(--text-light);
    font-size: 0.95rem;
}

.journey-year--current .journey-dot {
    width: 1.2rem;
    height: 1.2rem;
    background: var(--primary-color);
    box-shadow: 0 0 0 5px rgba(185, 28, 44, 0.15);
}

.journey-year--current .journey-label {
    color: var(--primary-color);
    font-size: 1.2rem;
    font-weight: 900;
}

.journey-tag {
    font-size: 0.7rem;
    font-weight: 700;
    color: white;
    background: var(--primary-color);
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    text-transform: uppercase;
}

@media (max-width: 700px) {
    .journey-year {
        padding: 0 1rem;
    }

    .journey-year:not(:last-child)::after {
        width: 0.85rem;
    }
}

.why-join-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

@media (max-width: 1024px) {
    .why-join-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 560px) {
    .why-join-grid {
        grid-template-columns: 1fr;
    }
}

.why-join-grid--compact {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.1rem;
    margin-top: 1.5rem;
}

.why-join-grid--compact .why-join-card {
    padding: 1.5rem 1.1rem 1.4rem;
}

@media (max-width: 560px) {
    .why-join-grid--compact {
        grid-template-columns: 1fr;
    }
}

.why-join-grid--3col {
    grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 900px) {
    .why-join-grid--3col {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 560px) {
    .why-join-grid--3col {
        grid-template-columns: 1fr;
    }
}

.why-join-card {
    text-align: center;
    padding: 2rem 1.5rem 1.75rem;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.35s ease, border-color 0.25s ease;
}

.why-join-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.why-join-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3.25rem;
    height: 3.25rem;
    margin: 0 auto 1.1rem;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    box-shadow: 0 10px 20px -8px rgba(var(--primary-color-rgb), 0.55);
}

.why-join-icon .icon-svg {
    width: 1.5rem;
    height: 1.5rem;
}

.why-join-card h4 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.why-join-card p {
    font-size: 0.9rem;
    color: var(--text-light);
}

.process-timeline {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 3rem;
}

.process-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 220px;
    transition: transform 0.3s ease;
}

.process-step:hover {
    transform: translateY(-4px);
}

.process-step:hover .flow-number {
    transform: scale(1.1);
    box-shadow: 0 10px 20px -6px rgba(var(--primary-color-rgb), 0.65);
}

.process-icon-wrap {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 4.5rem;
    height: 4.5rem;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    box-shadow: 0 10px 22px -8px rgba(var(--primary-color-rgb), 0.55);
    margin-bottom: 1.1rem;
}

.process-icon-wrap .icon-svg {
    width: 1.9rem;
    height: 1.9rem;
}

.process-badge {
    position: absolute;
    top: -0.35rem;
    right: -0.35rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 1.6rem;
    height: 1.6rem;
    border-radius: 50%;
    background: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    font-size: 0.75rem;
    font-weight: 800;
}

.process-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 0.35rem;
}

.process-desc {
    font-size: 0.85rem;
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

.process-date {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--primary-color);
}

.process-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    align-self: center;
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    background: rgba(var(--primary-color-rgb), 0.08);
    color: var(--primary-color);
    font-size: 1.1rem;
    font-weight: 700;
    flex-shrink: 0;
}

@media (max-width: 900px) {
    .process-timeline {
        flex-direction: column;
        align-items: center;
    }

    .process-arrow {
        transform: rotate(90deg);
        margin: 0.25rem 0;
    }
}

.stats-highlight-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.stat-highlight-card {
    position: relative;
    text-align: center;
    padding: 2.25rem 1rem;
    background: linear-gradient(135deg, rgba(185, 28, 44, 0.06), rgba(217, 68, 82, 0.03));
    border: 2px solid rgba(185, 28, 44, 0.15);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.35s ease, border-color 0.35s ease, background-color 0.35s ease;
}

.stat-highlight-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    opacity: 0;
    transition: opacity 0.35s ease;
    z-index: 0;
}

.stat-highlight-card:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: var(--primary-color);
    box-shadow: 0 20px 40px -8px rgba(185, 28, 44, 0.35);
}

.stat-highlight-card:hover::before {
    opacity: 1;
}

.stat-highlight-icon {
    position: relative;
    z-index: 1;
    width: 2.75rem;
    height: 2.75rem;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(185, 28, 44, 0.1);
    color: var(--primary-color);
    border-radius: 50%;
    transition: background-color 0.35s ease, color 0.35s ease;
}

.stat-highlight-card:hover .stat-highlight-icon {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.stat-highlight-value {
    position: relative;
    z-index: 1;
    font-size: clamp(2.1rem, 4vw, 2.75rem);
    font-weight: 900;
    line-height: 1;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.6rem;
    transition: -webkit-text-fill-color 0.35s ease;
}

.stat-highlight-card:hover .stat-highlight-value {
    -webkit-text-fill-color: white;
    background: none;
}

.stat-highlight-label {
    position: relative;
    z-index: 1;
    display: block;
    color: var(--text-color);
    font-weight: 700;
    font-size: clamp(0.78rem, 1.4vw, 0.92rem);
    white-space: nowrap;
    transition: color 0.35s ease;
}

.stat-highlight-card:hover .stat-highlight-label {
    color: white;
}

@media (max-width: 700px) {
    .stats-highlight-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .stat-highlight-label {
        white-space: normal;
    }
}

/* ============================================================================
   HALL OF FAME (Vinh Danh)
   ============================================================================ */

.winners-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin: 2rem 0 2.5rem;
}

.winners-tab {
    padding: 0.6rem 1.5rem;
    border: 2px solid var(--border-color);
    border-radius: 999px;
    background: white;
    color: var(--text-color);
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.25s ease;
}

.winners-tab:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.winners-tab.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.winners-themes {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.winners-theme-group {
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
}

.winners-theme-title {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

/* Podium — Nhất/Nhì/Ba get big, medal-colored "trophy" cards */
.winners-podium {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.75rem;
}

.podium-place {
    flex: 1 1 calc(33.333% - 0.7rem);
    min-width: 150px;
    position: relative;
    text-align: center;
    padding: 1.5rem 1rem 1.25rem;
    border-radius: var(--radius-lg);
    border: 2px solid var(--border-color);
    background: var(--bg-light);
    overflow: hidden;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease;
}

.podium-place:hover {
    transform: translateY(-5px);
}

.podium-rank {
    display: block;
    font-size: 2.5rem;
    line-height: 1;
    margin-bottom: 0.5rem;
    filter: drop-shadow(0 3px 6px rgba(0, 0, 0, 0.15));
}

.podium-tier {
    display: block;
    font-size: 0.7rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.35rem;
}

.podium-team {
    display: block;
    font-size: 1.15rem;
    font-weight: 900;
    color: var(--text-color);
    margin-bottom: 0.4rem;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.podium-project {
    display: block;
    font-size: 0.82rem;
    color: var(--text-light);
    line-height: 1.55;
}

.podium-place--gold {
    order: 2;
    background: linear-gradient(160deg, rgba(245, 158, 11, 0.14), rgba(245, 158, 11, 0.02));
    border-color: rgba(245, 158, 11, 0.55);
    box-shadow: 0 12px 30px -10px rgba(245, 158, 11, 0.45);
    transform: translateY(-0.6rem);
}

.podium-place--gold:hover {
    transform: translateY(-1.4rem);
}

.podium-place--gold .podium-tier { color: #b45309; }

.podium-place--silver {
    order: 1;
    background: linear-gradient(160deg, rgba(148, 163, 184, 0.16), rgba(148, 163, 184, 0.02));
    border-color: rgba(148, 163, 184, 0.55);
    box-shadow: 0 10px 24px -10px rgba(100, 116, 139, 0.35);
}

.podium-place--silver .podium-tier { color: #475569; }

.podium-place--bronze {
    order: 3;
    background: linear-gradient(160deg, rgba(217, 119, 6, 0.14), rgba(217, 119, 6, 0.02));
    border-color: rgba(180, 83, 9, 0.5);
    box-shadow: 0 10px 24px -10px rgba(146, 64, 14, 0.35);
}

.podium-place--bronze .podium-tier { color: #92400e; }

@media (max-width: 560px) {
    .podium-place {
        flex: 1 1 100%;
        order: initial !important;
        transform: none !important;
    }
}

/* Khuyến khích — its own card grid, one step down from the podium */
.winners-encouragement {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px dashed var(--border-color);
}

.encouragement-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.78rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-light);
    margin-bottom: 1rem;
}

.encouragement-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.85rem;
}

.encouragement-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.9rem 1rem;
    background: var(--bg-light);
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.encouragement-item:hover {
    transform: translateY(-3px);
    border-color: rgba(217, 119, 6, 0.5);
    box-shadow: 0 8px 18px -8px rgba(217, 119, 6, 0.35);
}

.encouragement-medal {
    flex-shrink: 0;
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.05rem;
    border-radius: 50%;
    background: rgba(217, 119, 6, 0.12);
}

.encouragement-info {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
    min-width: 0;
}

.encouragement-team {
    font-weight: 800;
    color: var(--text-color);
    font-size: 0.92rem;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.encouragement-project {
    color: var(--text-light);
    font-size: 0.8rem;
    line-height: 1.45;
}

@media (max-width: 560px) {
    .encouragement-list {
        grid-template-columns: 1fr;
    }
}

/* Special awards — "Viết Thuyết Minh Ấn Tượng" & "Đề Tài Được Yêu Thích" get
   their own spotlight badge cards instead of plain text lines. */
.special-awards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
    margin-top: 1.75rem;
}

.special-award-card {
    position: relative;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.35rem 1.5rem;
    border-radius: var(--radius-lg);
    border: 2px solid transparent;
    overflow: hidden;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease;
}

.special-award-card:hover {
    transform: translateY(-4px);
}

.special-award-card--writing {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.12), rgba(99, 102, 241, 0.02));
    border-color: rgba(99, 102, 241, 0.35);
    box-shadow: 0 10px 22px -14px rgba(99, 102, 241, 0.45);
}

.special-award-card--favorite {
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.12), rgba(236, 72, 153, 0.02));
    border-color: rgba(236, 72, 153, 0.35);
    box-shadow: 0 10px 22px -14px rgba(236, 72, 153, 0.45);
}

.special-award-card--favorite:hover {
    box-shadow: 0 14px 28px -14px rgba(236, 72, 153, 0.55);
}

.special-award-card--writing:hover {
    box-shadow: 0 14px 28px -14px rgba(99, 102, 241, 0.55);
}

.special-award-icon {
    flex-shrink: 0;
    width: 2.75rem;
    height: 2.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    border-radius: 50%;
    background: white;
    box-shadow: var(--shadow-md);
}

.special-award-body {
    min-width: 0;
}

.special-award-title {
    display: block;
    font-size: 0.78rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: 0.5rem;
}

.special-award-card--writing .special-award-title { color: #4338ca; }
.special-award-card--favorite .special-award-title { color: #be185d; }

.special-award-winners {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.special-award-winner {
    font-size: 0.86rem;
    color: var(--text-color);
    line-height: 1.5;
}

.special-award-winner strong {
    font-weight: 800;
}

.special-award-note {
    display: block;
    font-size: 0.75rem;
    color: var(--text-light);
    margin-top: 0.5rem;
}

@media (max-width: 700px) {
    .special-awards {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 800px) {
    .winners-themes {
        grid-template-columns: 1fr;
    }
}

/* ============================================================================
   HOMEPAGE VINH DANH TEASER
   ============================================================================ */

.champions-teaser-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
    margin-top: 2.5rem;
}

.champion-teaser-card {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.5rem;
    padding: 1.75rem 1.25rem 1.5rem;
    background: linear-gradient(160deg, rgba(245, 158, 11, 0.1), white 55%);
    border: 2px solid rgba(245, 158, 11, 0.4);
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 24px -14px rgba(245, 158, 11, 0.45);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease;
}

.champion-teaser-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 32px -14px rgba(245, 158, 11, 0.55);
}

.champion-teaser-year {
    position: absolute;
    top: -0.65rem;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.2rem 0.75rem;
    background: var(--primary-color);
    color: white;
    font-size: 0.68rem;
    font-weight: 800;
    border-radius: 999px;
    white-space: nowrap;
}

.champion-teaser-medal {
    font-size: 2.25rem;
    margin-top: 0.5rem;
    filter: drop-shadow(0 3px 6px rgba(0, 0, 0, 0.15));
}

.champion-teaser-info {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.champion-teaser-theme {
    font-size: 0.68rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: #b45309;
}

.champion-teaser-team {
    font-size: 1.05rem;
    font-weight: 900;
    color: var(--text-color);
    overflow-wrap: anywhere;
    word-break: break-word;
}

.champion-teaser-project {
    font-size: 0.8rem;
    color: var(--text-light);
    line-height: 1.5;
    margin-top: 0.15rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

@media (max-width: 900px) {
    .champions-teaser-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .champions-teaser-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================================================
   AISC 2026 SPOTLIGHT
   ============================================================================ */

.spotlight-section {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
}

.spotlight-eyebrow {
    color: rgba(255, 255, 255, 0.85) !important;
}

.spotlight-title {
    color: white;
}

.spotlight-title .gradient-text {
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.spotlight-subtitle {
    color: rgba(255, 255, 255, 0.85) !important;
}

.spotlight-rounds {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 2.5rem;
}

.spotlight-round-card {
    text-align: center;
    padding: 1.75rem 1.25rem;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(4px);
    transition: transform 0.3s ease, background-color 0.3s ease;
}

.spotlight-round-card:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.14);
}

.spotlight-round-card--final {
    background: rgba(255, 255, 255, 0.18);
    border-color: rgba(255, 255, 255, 0.5);
}

.spotlight-round-no {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #fde68a;
    margin-bottom: 0.5rem;
}

.spotlight-round-card h4 {
    font-size: 1.15rem;
    font-weight: 800;
    color: white;
    margin-bottom: 0.5rem;
}

.spotlight-round-date {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.85rem;
    font-weight: 600;
}

.spotlight-section .btn-outline {
    border-color: white;
    color: white;
}

.spotlight-section .btn-outline:hover {
    background: white;
    color: var(--primary-color);
}

@media (max-width: 800px) {
    .spotlight-rounds {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ============================================================================
   THEMES SECTION
   ============================================================================ */

.themes-section {
    background: linear-gradient(180deg, #ffffff 0%, #f3f4f6 100%);
}

.themes-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

@media (max-width: 700px) {
    .themes-grid {
        grid-template-columns: 1fr;
    }
}

.theme-card {
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease, border-color 0.25s ease, background-color 0.25s ease;
}

.theme-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.theme-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    color: white;
    box-shadow: 0 12px 24px -10px rgba(0, 0, 0, 0.35);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.theme-icon .icon-svg {
    width: 2.25rem;
    height: 2.25rem;
}

.theme-card:hover .theme-icon {
    transform: scale(1.08) rotate(-4deg);
}

.theme-icon--center {
    margin: 0 auto 1.5rem;
    animation: theme-icon-float 3.5s ease-in-out infinite;
}

@keyframes theme-icon-float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-6px) rotate(-3deg); }
}

.theme-tagline {
    display: block;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--primary-color);
    margin-bottom: 0.375rem;
}

.theme-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.theme-desc {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.theme-keywords {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.theme-keywords span {
    display: inline-block;
    padding: 0.4rem 0.9rem;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xs);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-color);
    transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), background-color 0.25s ease, border-color 0.25s ease, color 0.25s ease;
}

.theme-keywords span:hover {
    transform: translateY(-3px);
}

.theme-keywords--red span:hover {
    background: rgba(127, 29, 29, 0.1);
    border-color: rgba(127, 29, 29, 0.35);
    color: #7f1d1d;
}

.theme-keywords--crimson span:hover {
    background: rgba(220, 38, 38, 0.1);
    border-color: rgba(220, 38, 38, 0.35);
    color: #dc2626;
}

/* Even-width tag cloud: fixed pill width so wrapped rows stay visually
   balanced instead of ragged (variable-width centered pills create a
   jagged left/right edge once they wrap onto multiple lines). */
.theme-keywords--even {
    justify-content: center;
}

.theme-keywords--even span {
    flex: 0 0 190px;
    text-align: center;
}

/* Rounds overview cards (Thể Lệ page) — big number badge + one-line essence
   so each round's purpose is obvious before reading the full description. */
.round-overview-card {
    position: relative;
    padding-top: 2.25rem;
    border-top: 4px solid var(--round-accent, var(--primary-color));
}

.round-overview-card--green { --round-accent: #16a34a; --round-accent-rgb: 22, 163, 74; }
.round-overview-card--orange { --round-accent: #ea580c; --round-accent-rgb: 234, 88, 12; }
.round-overview-card--purple { --round-accent: #7c3aed; --round-accent-rgb: 124, 58, 237; }
.round-overview-card--red { --round-accent: #dc2626; --round-accent-rgb: 220, 38, 38; }

.round-number {
    position: absolute;
    top: -1rem;
    left: 1.5rem;
    width: 2.75rem;
    height: 2.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--round-accent, var(--primary-color));
    color: white;
    font-size: 1.2rem;
    font-weight: 900;
    border-radius: 50%;
    box-shadow: 0 6px 14px -4px rgba(var(--round-accent-rgb, 185, 28, 44), 0.5);
}

.round-essence {
    display: inline-block;
    font-size: 0.95rem;
    font-weight: 800;
    color: var(--round-accent, var(--primary-color));
    margin-bottom: 0.6rem;
}

.round-note {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-top: 0.85rem;
    padding: 0.6rem 0.8rem;
    background: rgba(var(--round-accent-rgb, 185, 28, 44), 0.06);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    color: var(--text-light);
}

.round-note strong {
    color: var(--round-accent, var(--primary-color));
    flex-shrink: 0;
}

/* Section divider — marks the shift from "overview" to "detailed rules" */
.section-divider {
    padding: 2.5rem 0 0.5rem;
}

.section-divider-inner {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    max-width: 42rem;
    margin: 0 auto;
    padding: 1.5rem 2rem;
    background: linear-gradient(135deg, rgba(185, 28, 44, 0.08), rgba(217, 68, 82, 0.03));
    border: 2px dashed rgba(185, 28, 44, 0.35);
    border-radius: var(--radius-lg);
}

.section-divider-icon {
    flex-shrink: 0;
    font-size: 2.5rem;
    line-height: 1;
}

.section-divider-eyebrow {
    display: block;
    font-size: 0.72rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--primary-color);
    margin-bottom: 0.3rem;
}

.section-divider-title {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--text-color);
    margin-bottom: 0.35rem;
}

.section-divider-desc {
    color: var(--text-light);
    font-size: 0.88rem;
    margin: 0;
    line-height: 1.5;
}

@media (max-width: 600px) {
    .section-divider-inner {
        flex-direction: column;
        text-align: center;
    }
}

/* ============================================================================
   TIMELINE SECTION
   ============================================================================ */

.timeline-section {
    background: linear-gradient(180deg, #f3f4f6 0%, #ffffff 100%);
}

.desktop-timeline {
    position: relative;
    padding: 2rem 0;
}

.timeline-track {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-color);
    transform: translateX(-50%);
}

.timeline-events {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    position: relative;
}

.timeline-event {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: center;
}

.timeline-event:nth-child(odd) .timeline-content {
    text-align: right;
    grid-column: 1;
}

.timeline-event:nth-child(even) .timeline-content {
    text-align: left;
    grid-column: 2;
}

.timeline-dot {
    position: absolute;
    width: 12px;
    height: 12px;
    background: var(--primary-color);
    border: 3px solid white;
    border-radius: 50%;
    left: 50%;
    top: 0;
    transform: translateX(-50%);
    box-shadow: 0 0 0 3px var(--primary-color);
}

.timeline-content {
    padding: 1.5rem;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease, border-color 0.25s ease, background-color 0.25s ease;
}

.timeline-content:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.timeline-date {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.timeline-title {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-color);
}

.timeline-desc {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* Mobile Timeline */
.mobile-timeline {
    display: none;
}

.timeline-events-mobile {
    position: relative;
    padding-left: 2rem;
}

.timeline-events-mobile::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-color);
}

.timeline-event-mobile {
    position: relative;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
}

.timeline-event-mobile .timeline-dot {
    position: relative;
    left: -2.4rem;
}

@media (max-width: 768px) {
    .desktop-timeline { display: none; }
    .mobile-timeline { display: block; }
}

/* ============================================================================
   AWARDS SECTION
   ============================================================================ */

.awards-section {
    background: linear-gradient(180deg, #ffffff 0%, #f3f4f6 100%);
}

.awards-total {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.75rem;
    max-width: 720px;
    margin: 0 auto 1.5rem;
    padding: 2.25rem 3rem;
    background: linear-gradient(135deg, #7f1d1d 0%, var(--primary-color) 45%, #f59e0b 100%);
    border-radius: var(--radius-xl);
    overflow: hidden;
    animation: awards-glow 2.8s ease-in-out infinite;
    color: white;
}

.awards-total::before {
    content: '';
    position: absolute;
    inset: -40%;
    background: repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.06) 0 2px, transparent 2px 14px);
    animation: awards-shine-sweep 6s linear infinite;
    pointer-events: none;
}

@keyframes awards-glow {
    0%, 100% { box-shadow: 0 0 0 rgba(245, 158, 11, 0), var(--shadow-xl); }
    50% { box-shadow: 0 0 55px 6px rgba(245, 158, 11, 0.55), var(--shadow-xl); }
}

@keyframes awards-shine-sweep {
    from { transform: translateX(-15%) rotate(0deg); }
    to { transform: translateX(15%) rotate(0deg); }
}

.awards-total-icon {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 4.5rem;
    height: 4.5rem;
    flex-shrink: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.18);
    box-shadow: 0 8px 18px -6px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.25);
    animation: awards-icon-pulse 2.8s ease-in-out infinite;
}

@keyframes awards-icon-pulse {
    0%, 100% { transform: scale(1) rotate(-6deg); }
    50% { transform: scale(1.12) rotate(6deg); }
}

.awards-total-icon .icon-svg {
    width: 2.4rem;
    height: 2.4rem;
    color: #fde68a;
}

.awards-total-text {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    text-align: left;
}

.awards-total-label {
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.95;
}

.awards-total-value {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.15;
    background: linear-gradient(90deg, #fff8e1 0%, #fde68a 25%, #fff 50%, #fde68a 75%, #fff8e1 100%);
    background-size: 250% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: awards-shimmer 3.5s linear infinite;
    text-shadow: 0 4px 24px rgba(245, 158, 11, 0.5);
}

@keyframes awards-shimmer {
    to { background-position: -250% center; }
}

@media (max-width: 560px) {
    .awards-total-value {
        font-size: 2.4rem;
    }
}

.awards-lead {
    text-align: center;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 1.5rem;
}

@media (max-width: 560px) {
    .awards-total {
        flex-direction: column;
        text-align: center;
        padding: 1.5rem;
    }

    .awards-total-text {
        text-align: center;
    }
}

.awards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

@media (max-width: 900px) {
    .awards-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.award-card {
    text-align: center;
    padding: 1.75rem;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease, border-color 0.25s ease, background-color 0.25s ease;
}

.award-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.award-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3.25rem;
    height: 3.25rem;
    margin: 0 auto 1.1rem;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    box-shadow: 0 10px 20px -8px rgba(var(--primary-color-rgb), 0.55);
}

.award-icon .icon-svg {
    width: 1.5rem;
    height: 1.5rem;
}

.award-card--gold {
    position: relative;
    z-index: 2;
    margin-top: 0.9rem;
    border: 2px solid #f0b429;
    background: linear-gradient(160deg, #ffffff 0%, #fffaf0 100%);
    box-shadow: 0 16px 32px -16px rgba(245, 158, 11, 0.5);
    animation: gold-card-glow 2.8s ease-in-out infinite;
}

@keyframes gold-card-glow {
    0%, 100% { box-shadow: 0 16px 32px -16px rgba(245, 158, 11, 0.5); }
    50% { box-shadow: 0 18px 38px -14px rgba(245, 158, 11, 0.8); }
}

.award-card--gold::before {
    content: '★ GIẢI CAO NHẤT';
    position: absolute;
    top: -0.8rem;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #f59e0b, #cba76e);
    color: white;
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    padding: 0.3rem 0.9rem;
    border-radius: 999px;
    box-shadow: 0 6px 14px -4px rgba(245, 158, 11, 0.6);
    white-space: nowrap;
}

.award-card--gold .award-icon {
    width: 3.6rem;
    height: 3.6rem;
    background: linear-gradient(135deg, var(--accent-color), #cba76e);
    box-shadow: 0 10px 20px -8px rgba(168, 136, 86, 0.55);
}

.award-card--gold .award-prize {
    background: linear-gradient(135deg, #b45309, #92400e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.award-card--silver .award-icon {
    background: linear-gradient(135deg, #9ca3af, #d1d5db);
    box-shadow: 0 10px 20px -8px rgba(107, 114, 128, 0.45);
}

.award-card--bronze .award-icon {
    background: linear-gradient(135deg, #b8763e, #d9a06f);
    box-shadow: 0 10px 20px -8px rgba(184, 118, 62, 0.45);
}

.award-rank {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--text-light);
    margin-bottom: 0.25rem;
}

.award-count {
    font-size: 0.8rem;
    color: var(--text-light);
    opacity: 0.75;
    margin-bottom: 1rem;
}

.award-prize {
    font-size: 2rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bonus-title {
    text-align: center;
    font-size: 2rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.01em;
    margin: 3.5rem 0 0.5rem;
}

.bonus-subtitle {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 2.25rem;
}

.bonus-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
}

.bonus-card {
    position: relative;
    text-align: center;
    padding: 2rem 1.5rem 1.75rem;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.35s ease, border-color 0.25s ease;
}

.bonus-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--bonus-accent, var(--primary-color));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.35s ease;
}

.bonus-card:hover {
    border-color: rgba(var(--bonus-accent-rgb, var(--primary-color-rgb)), 0.45);
    box-shadow: var(--shadow-lg);
    transform: translateY(-6px);
}

.bonus-card:hover::before {
    transform: scaleX(1);
}

.bonus-card--red { --bonus-accent: var(--primary-color); --bonus-accent-rgb: var(--primary-color-rgb); }
.bonus-card--gold { --bonus-accent: var(--accent-color); --bonus-accent-rgb: 168, 136, 86; }
.bonus-card--green { --bonus-accent: var(--success-color); --bonus-accent-rgb: 16, 185, 129; }
.bonus-card--amber { --bonus-accent: var(--warning-color); --bonus-accent-rgb: 245, 158, 11; }

.bonus-icon {
    width: 3.5rem;
    height: 3.5rem;
    margin: 0 auto 1.1rem;
    border-radius: var(--radius-sm);
    background: var(--bonus-accent, var(--primary-color));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 20px -8px rgba(var(--bonus-accent-rgb, var(--primary-color-rgb)), 0.5);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.35s ease;
}

.bonus-card:hover .bonus-icon {
    transform: scale(1.12) rotate(-6deg);
    box-shadow: 0 14px 26px -8px rgba(var(--bonus-accent-rgb, var(--primary-color-rgb)), 0.7);
}

.bonus-icon .icon-svg {
    width: 1.5rem;
    height: 1.5rem;
}

.bonus-card h4 {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
    color: var(--text-color);
}

.bonus-card p {
    font-size: 0.9rem;
    color: var(--text-light);
    margin: 0;
}

/* ============================================================================
   PARTICIPANTS SECTION
   ============================================================================ */

.participants-section {
    background: linear-gradient(180deg, #f3f4f6 0%, #ffffff 100%);
}

.participants-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.participants-benefits,
.participants-eligibility {
    display: flex;
    flex-direction: column;
}

.benefits-list,
.eligibility-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.participants-eligibility--full {
    max-width: 900px;
    margin: 3.5rem auto 0;
}

.eligibility-list--grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.eligibility-list--grid .eligibility-item:last-child:nth-child(odd) {
    grid-column: 1 / -1;
    max-width: calc(50% - 0.625rem);
    margin: 0 auto;
}

@media (max-width: 700px) {
    .eligibility-list--grid {
        grid-template-columns: 1fr;
    }

    .eligibility-list--grid .eligibility-item:last-child:nth-child(odd) {
        max-width: 100%;
    }
}

.benefit-item {
    position: relative;
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease, border-color 0.25s ease, background-color 0.25s ease;
}

.benefit-item::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    width: 4px;
    background: var(--benefit-accent, var(--primary-color));
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.benefit-item:hover {
    border-color: rgba(var(--benefit-accent-rgb, var(--primary-color-rgb)), 0.45);
    box-shadow: var(--shadow-lg);
    transform: translateX(4px);
}

.benefit-item:hover::before {
    transform: scaleY(1);
}

.benefit-item--red { --benefit-accent: var(--primary-color); --benefit-accent-rgb: var(--primary-color-rgb); }
.benefit-item--gold { --benefit-accent: var(--accent-color); --benefit-accent-rgb: 168, 136, 86; }
.benefit-item--green { --benefit-accent: var(--success-color); --benefit-accent-rgb: 16, 185, 129; }
.benefit-item--amber { --benefit-accent: var(--warning-color); --benefit-accent-rgb: 245, 158, 11; }

.benefit-icon {
    width: 3rem;
    height: 3rem;
    flex-shrink: 0;
    border-radius: var(--radius-sm);
    background: var(--benefit-accent, var(--primary-color));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 16px -6px rgba(var(--benefit-accent-rgb, var(--primary-color-rgb)), 0.5);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.benefit-item:hover .benefit-icon {
    transform: scale(1.1) rotate(-6deg);
}

.benefit-icon .icon-svg {
    width: 1.375rem;
    height: 1.375rem;
}

.benefit-item h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
    color: var(--text-color);
}

.benefit-item p {
    font-size: 0.85rem;
    color: var(--text-light);
    margin: 0;
}

.eligibility-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: linear-gradient(135deg, rgba(185, 28, 44, 0.05), rgba(217, 68, 82, 0.05));
    border: 2px solid rgba(185, 28, 44, 0.2);
    border-radius: var(--radius-sm);
    transition: transform 0.3s ease, border-color 0.25s ease, box-shadow 0.3s ease;
}

.eligibility-item:hover {
    border-color: rgba(185, 28, 44, 0.5);
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.check-icon {
    flex-shrink: 0;
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    font-weight: 700;
    font-size: 0.9rem;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.check-icon .icon-svg {
    width: 1rem;
    height: 1rem;
}

.eligibility-item:hover .check-icon {
    transform: scale(1.15);
}

.eligibility-item p {
    margin: 0;
    font-size: 0.95rem;
    color: var(--text-color);
    font-weight: 500;
}

/* Staggered reveal: each item fades in one after another instead of all
   at once. The opacity delay is baked per-item so it never lingers on the
   hover-triggered transform/border/shadow transitions afterwards. */
.benefit-item,
.eligibility-item {
    opacity: 0;
}

.section.animate-in .benefit-item,
.section.animate-in .eligibility-item {
    opacity: 1;
}

.benefit-item:nth-child(1) { transition: opacity 0.6s ease 0.05s, transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1) 0s, border-color 0.25s ease 0s, box-shadow 0.3s ease 0s; }
.benefit-item:nth-child(2) { transition: opacity 0.6s ease 0.15s, transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1) 0s, border-color 0.25s ease 0s, box-shadow 0.3s ease 0s; }
.benefit-item:nth-child(3) { transition: opacity 0.6s ease 0.25s, transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1) 0s, border-color 0.25s ease 0s, box-shadow 0.3s ease 0s; }
.benefit-item:nth-child(4) { transition: opacity 0.6s ease 0.35s, transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1) 0s, border-color 0.25s ease 0s, box-shadow 0.3s ease 0s; }

.eligibility-item:nth-child(1) { transition: opacity 0.6s ease 0.05s, transform 0.3s ease 0s, border-color 0.25s ease 0s, box-shadow 0.3s ease 0s; }
.eligibility-item:nth-child(2) { transition: opacity 0.6s ease 0.13s, transform 0.3s ease 0s, border-color 0.25s ease 0s, box-shadow 0.3s ease 0s; }
.eligibility-item:nth-child(3) { transition: opacity 0.6s ease 0.21s, transform 0.3s ease 0s, border-color 0.25s ease 0s, box-shadow 0.3s ease 0s; }
.eligibility-item:nth-child(4) { transition: opacity 0.6s ease 0.29s, transform 0.3s ease 0s, border-color 0.25s ease 0s, box-shadow 0.3s ease 0s; }
.eligibility-item:nth-child(5) { transition: opacity 0.6s ease 0.37s, transform 0.3s ease 0s, border-color 0.25s ease 0s, box-shadow 0.3s ease 0s; }

.mt-8 {
    margin-top: 2rem !important;
}

@media (max-width: 900px) {
    .participants-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================================================
   JUDGES SECTION
   ============================================================================ */

.judges-section {
    background: linear-gradient(180deg, #ffffff 0%, #f3f4f6 100%);
}

.judges-companies {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    margin: 2rem 0 3rem;
}

.company-tag {
    display: inline-block;
    padding: 0.625rem 1.25rem;
    background: var(--gray-100);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-xl);
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--text-color);
    transition: all 0.3s ease;
}

.company-tag:hover {
    border-color: var(--primary-color);
    background: rgba(185, 28, 44, 0.15);
}

.judges-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
}

.judge-card {
    text-align: center;
    padding: 1.5rem;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease, border-color 0.25s ease, background-color 0.25s ease;
}

.judge-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.judge-avatar {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    border-radius: 50%;
    font-weight: 900;
    font-size: 1.25rem;
    box-shadow: 0 10px 22px -10px rgba(var(--primary-color-rgb), 0.55);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.judge-card:hover .judge-avatar {
    transform: scale(1.08);
}

.judge-name {
    font-size: 1.125rem;
    margin-bottom: 0.25rem;
    color: var(--text-color);
}

.judge-role {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.judge-company {
    font-size: 0.8rem;
    color: var(--text-light);
    margin-bottom: 1rem;
}

.judge-specialty {
    display: inline-block;
    padding: 0.375rem 0.75rem;
    background: var(--gray-100);
    border-radius: var(--radius-xs);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.judge-link {
    display: inline-block;
    color: var(--text-light);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 600;
    transition: color 0.3s ease;
}

.judge-link:hover {
    color: var(--primary-color);
}

/* ============================================================================
   SPONSORS SECTION
   ============================================================================ */

.sponsors-section {
    background: linear-gradient(180deg, #f3f4f6 0%, #ffffff 100%);
}

.sponsor-card {
    text-align: center;
    padding: 1.5rem;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease, border-color 0.25s ease, background-color 0.25s ease;
}

.sponsor-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.sponsor-logo {
    width: 120px;
    height: 120px;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-weight: 700;
    color: var(--primary-color);
    font-size: 1.25rem;
}

.sponsor-logo img {
    max-width: 88%;
    max-height: 88%;
    object-fit: contain;
}

.sponsor-name {
    font-weight: 700;
    color: var(--text-color);
    margin: 0;
}

.sponsors-cta {
    text-align: center;
    padding: 3rem 2rem;
    background: linear-gradient(135deg, rgba(185, 28, 44, 0.05), rgba(217, 68, 82, 0.05));
    border: 2px solid rgba(185, 28, 44, 0.2);
    border-radius: var(--radius-lg);
    margin-top: 3rem;
}

.sponsors-cta h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.sponsors-cta p {
    color: var(--text-light);
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Past-sponsors carousel reuses the .projects-carousel-wrap/.projects-track
   JS/CSS built for the poster showcase; only the card sizing needs its own
   variant since logo cards are narrower than poster cards. */
.sponsor-track {
    align-items: stretch;
}

.sponsor-card--carousel {
    flex: 0 0 calc((100% - 4 * 1.5rem) / 5);
    scroll-snap-align: start;
}

@media (max-width: 900px) {
    .sponsor-card--carousel {
        flex-basis: calc((100% - 2 * 1.5rem) / 3);
    }
}

@media (max-width: 560px) {
    .sponsor-card--carousel {
        flex-basis: calc((100% - 1rem) / 1.6);
    }
}

/* ============================================================================
   SPONSOR VALUE PROPOSITION
   ============================================================================ */

.sponsor-value-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.75rem;
    margin-top: 2.5rem;
}

.sponsor-value-card {
    position: relative;
    overflow: hidden;
    padding: 2rem;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), border-color 0.25s ease, box-shadow 0.3s ease;
}

.sponsor-value-card:hover {
    transform: translateY(-6px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.sponsor-value-number {
    position: absolute;
    top: 0.25rem;
    right: 1.5rem;
    font-size: 4.5rem;
    font-weight: 900;
    color: rgba(var(--primary-color-rgb), 0.06);
    line-height: 1;
    pointer-events: none;
}

.sponsor-value-icon {
    position: relative;
    width: 3.5rem;
    height: 3.5rem;
    margin-bottom: 1.25rem;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 16px -6px rgba(var(--primary-color-rgb), 0.5);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.sponsor-value-card:hover .sponsor-value-icon {
    transform: scale(1.08) rotate(-4deg);
}

.sponsor-value-card h3 {
    position: relative;
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--text-color);
    margin-bottom: 0.75rem;
}

.sponsor-value-card p {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 0.75rem;
}

.sponsor-value-card p:last-child {
    margin-bottom: 0;
}

.sponsor-value-list {
    list-style: none;
    padding: 0;
    margin: 0 0 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.sponsor-value-list li {
    position: relative;
    padding-left: 1.4rem;
    color: var(--text-color);
    font-weight: 600;
    font-size: 0.92rem;
}

.sponsor-value-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--primary-color);
    font-weight: 800;
    font-size: 0.85rem;
}

.sponsor-closing-note {
    position: relative;
    text-align: center;
    max-width: 52rem;
    margin: 3rem auto 0;
    padding: 2rem 2.5rem;
    background: linear-gradient(135deg, rgba(var(--primary-color-rgb), 0.04), rgba(217, 68, 82, 0.04));
    border: 1px solid rgba(var(--primary-color-rgb), 0.15);
    border-radius: var(--radius-lg);
    color: var(--text-color);
    font-style: italic;
    line-height: 1.8;
}

@media (max-width: 900px) {
    .sponsor-value-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================================================
   SPONSOR BENEFITS TABLE
   ============================================================================ */

.table-scroll {
    overflow-x: auto;
    margin-top: 2.5rem;
    border-radius: var(--radius-md);
    border: 2px solid var(--border-color);
}

.sponsor-table {
    width: 100%;
    min-width: 760px;
    border-collapse: collapse;
    background: white;
}

.sponsor-table th,
.sponsor-table td {
    padding: 0.9rem 1.1rem;
    border-bottom: 1px solid var(--border-color);
    text-align: center;
    font-size: 0.9rem;
}

.sponsor-table thead th {
    background: var(--secondary-color);
    color: white;
    vertical-align: top;
    white-space: nowrap;
}

.sponsor-table .tier-name {
    display: block;
    font-weight: 800;
    font-size: 0.95rem;
}

.sponsor-table .tier-price {
    display: block;
    font-weight: 400;
    font-size: 0.78rem;
    color: rgba(255, 255, 255, 0.75);
    margin-top: 0.2rem;
}

.sponsor-table .sponsor-table-benefit {
    text-align: left;
    color: var(--text-color);
    font-weight: 600;
    min-width: 260px;
}

.sponsor-table thead .sponsor-table-benefit {
    background: var(--secondary-color);
}

.sponsor-table tbody tr:nth-child(even) {
    background: var(--bg-light);
}

.sponsor-table td.is-yes {
    color: var(--success-color);
    font-weight: 800;
    font-size: 1.1rem;
}

.sponsor-table th.is-featured {
    background: linear-gradient(135deg, var(--accent-color), #cba76e);
    position: relative;
    padding-top: 1.9rem;
}

.sponsor-table th.is-featured::before {
    content: 'Đề Xuất';
    position: absolute;
    top: 0.4rem;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: white;
    font-size: 0.62rem;
    font-weight: 800;
    letter-spacing: 0.03em;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    white-space: nowrap;
}

.sponsor-table td.is-featured-col {
    background: rgba(168, 136, 86, 0.06);
}

.sponsor-note {
    max-width: 48rem;
    margin: 1.5rem auto 0;
    text-align: center;
    color: var(--text-light);
    font-size: 0.9rem;
    line-height: 1.7;
}

/* ============================================================================
   THEME COMPARISON / PROJECT TABLES (Chu De page)
   ============================================================================ */

.compare-table {
    width: 100%;
    min-width: 640px;
    border-collapse: collapse;
    background: white;
}

.compare-table th,
.compare-table td {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
    font-size: 0.9rem;
    vertical-align: top;
}

.compare-table thead th {
    color: white;
    font-weight: 700;
    white-space: nowrap;
}

.compare-table thead th:nth-child(2) {
    background: linear-gradient(135deg, #7f1d1d, #991b1b);
}

.compare-table thead th:nth-child(3) {
    background: linear-gradient(135deg, #dc2626, #f87171);
}

.compare-table .compare-table-criteria {
    background: var(--bg-light);
    font-weight: 700;
    color: var(--text-color);
    white-space: nowrap;
}

.compare-table thead .compare-table-criteria {
    background: var(--secondary-color);
}

.compare-table tbody tr:nth-child(even) td:not(.compare-table-criteria) {
    background: var(--bg-light);
}

.compare-table tbody tr {
    transition: background-color 0.2s ease;
}

.compare-table tbody tr:hover td:not(.compare-table-criteria) {
    background: rgba(var(--primary-color-rgb), 0.06);
}


.flow-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    font-size: 1.1rem;
    font-weight: 800;
    box-shadow: 0 8px 16px -6px rgba(var(--primary-color-rgb), 0.5);
    margin-bottom: 0.75rem;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease;
}

.flow-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem 1.5rem;
    margin-top: 2.5rem;
}

.flow-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 1.25rem 1rem;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: transform 0.3s ease, border-color 0.25s ease, box-shadow 0.3s ease;
}

.flow-step:hover {
    transform: translateY(-4px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.flow-step:hover .flow-number {
    transform: scale(1.1);
    box-shadow: 0 10px 20px -6px rgba(var(--primary-color-rgb), 0.65);
}

.flow-step .process-title {
    font-size: 0.9rem;
    margin-bottom: 0;
}

@media (max-width: 900px) {
    .flow-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 560px) {
    .flow-grid {
        grid-template-columns: 1fr;
    }
}

.fit-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 2.5rem;
}

@media (max-width: 800px) {
    .fit-grid {
        grid-template-columns: 1fr;
    }
}

.fit-grid--3col {
    grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 900px) {
    .fit-grid--3col {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 560px) {
    .fit-grid--3col {
        grid-template-columns: 1fr;
    }
}

.fit-card {
    position: relative;
    padding: 2rem;
    background: white;
    border: 2px solid var(--border-color);
    border-top: 4px solid var(--fit-accent, var(--primary-color));
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease, border-color 0.25s ease;
}

.fit-card:hover {
    border-color: var(--fit-accent, var(--primary-color));
    border-top-color: var(--fit-accent, var(--primary-color));
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.fit-card--digital { --fit-accent: #7f1d1d; }
.fit-card--data { --fit-accent: #dc2626; }

.fit-card h3 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    text-align: center;
    color: var(--fit-accent, var(--text-color));
}

.fit-card .eligibility-list {
    margin-bottom: 1.5rem;
}

.sponsor-contact-card {
    max-width: 28rem;
    margin: 2.5rem auto 0;
    padding: 1.75rem 2rem;
    text-align: center;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
}

.sponsor-contact-card h3 {
    font-size: 1.1rem;
    font-weight: 800;
    margin-bottom: 0.4rem;
}

.sponsor-contact-card > p {
    color: var(--text-light);
    margin-bottom: 0.75rem;
}

.sponsor-contact-name {
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.75rem;
}

.sponsor-contact-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    align-items: center;
}

.sponsor-contact-links a {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-color);
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
}

.sponsor-contact-links a:hover {
    color: var(--primary-color);
}

.sponsor-contact-links .icon-svg {
    width: 1rem;
    height: 1rem;
    color: var(--primary-color);
}

/* ============================================================================
   PARTNERS SECTION
   ============================================================================ */

.partners-section {
    background: linear-gradient(180deg, #ffffff 0%, #f3f4f6 100%);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.partner-card {
    text-align: center;
    padding: 1.5rem;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease, border-color 0.25s ease, background-color 0.25s ease;
    box-shadow: var(--shadow-sm);
}

.partner-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.partner-logo {
    width: 100px;
    height: 100px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    border-radius: var(--radius-md);
    color: white;
    font-weight: 700;
    font-size: 1.25rem;
}

.partner-card h4 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.partner-card p {
    color: var(--text-light);
    margin: 0;
}

/* ============================================================================
   ORGANIZING / SUPPORTING / SPONSOR / PARTNER UNITS (homepage)
   ============================================================================ */

.org-groups {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
    margin-top: 2.5rem;
}

.org-group-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.95rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--primary-color);
    margin-bottom: 1.25rem;
}

.org-group-title::after {
    content: '';
    flex: 1;
    height: 2px;
    background: linear-gradient(90deg, rgba(185, 28, 44, 0.35), transparent);
}

.org-logo-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.25rem;
}

.org-logo-card {
    display: flex;
    align-items: center;
    gap: 1.1rem;
    flex: 1 1 360px;
    max-width: 480px;
    padding: 1.25rem 1.75rem;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease, border-color 0.25s ease;
}

.org-logo-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.org-logo-card img {
    flex-shrink: 0;
    width: 3.5rem;
    height: 3.5rem;
    object-fit: contain;
}

.org-logo-name {
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--text-color);
    line-height: 1.4;
}

.org-logo-card--soon {
    background: var(--bg-light);
    border-style: dashed;
    box-shadow: none;
}

.org-logo-card--soon:hover {
    transform: none;
    border-color: var(--border-color);
}

.org-soon-icon {
    flex-shrink: 0;
    width: 3.5rem;
    height: 3.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    background: var(--gray-100);
    border-radius: 50%;
}

.org-logo-card--soon .org-logo-name {
    color: var(--text-light);
    font-style: italic;
}

@media (max-width: 560px) {
    .org-logo-card {
        flex: 1 1 100%;
        max-width: none;
    }
}

/* ============================================================================
   OFFICIAL CHANNELS (homepage - dark spotlight treatment)
   ============================================================================ */

.channels-section {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
}

.channels-section .section-eyebrow {
    color: rgba(255, 255, 255, 0.85) !important;
}

.channels-section .section-title {
    color: white;
}

.channels-section .section-title .gradient-text {
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.channels-section .section-subtitle {
    color: rgba(255, 255, 255, 0.85) !important;
}

.channel-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
}

.channel-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: var(--radius-md);
    backdrop-filter: blur(4px);
    text-decoration: none;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease, background-color 0.3s ease, border-color 0.3s ease;
}

.channel-card:hover {
    background: rgba(255, 255, 255, 0.16);
    border-color: rgba(255, 255, 255, 0.55);
    box-shadow: 0 16px 32px -14px rgba(0, 0, 0, 0.45);
    transform: translateY(-6px) scale(1.02);
}

.channel-icon {
    flex-shrink: 0;
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.1rem;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.channel-card:hover .channel-icon {
    background: white;
    color: var(--primary-color);
    transform: scale(1.08);
}

.channel-icon .icon-svg {
    width: 1.3rem;
    height: 1.3rem;
}

.channel-info h4 {
    font-size: 1rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.2rem;
}

.channel-info p {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.75);
    margin: 0;
    word-break: break-all;
}

@media (max-width: 700px) {
    .channel-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================================================
   TESTIMONIALS SECTION
   ============================================================================ */

.testimonials-section {
    background: linear-gradient(180deg, #f3f4f6 0%, #ffffff 100%);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

@media (max-width: 1100px) {
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 560px) {
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
}

.testimonial-card {
    padding: 1.5rem;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease, border-color 0.25s ease, background-color 0.25s ease;
}

.testimonial-role-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--primary-color);
    background: rgba(var(--primary-color-rgb), 0.08);
    padding: 0.3rem 0.75rem;
    border-radius: 999px;
    margin-bottom: 1rem;
}

.testimonial-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.testimonial-text {
    font-size: 0.95rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.author-avatar {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    border-radius: 50%;
    font-weight: 700;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.author-name {
    font-weight: 700;
    margin: 0;
}

.author-role {
    font-size: 0.8rem;
    color: var(--text-light);
    margin: 0;
}

/* ============================================================================
   FAQ SECTION
   ============================================================================ */

.faq-section {
    background: linear-gradient(180deg, #ffffff 0%, #f3f4f6 100%);
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: border-color 0.25s ease, box-shadow 0.3s ease;
}

.faq-item.active {
    border-color: rgba(var(--primary-color-rgb), 0.4);
    box-shadow: var(--shadow-md);
}

.faq-toggle {
    width: 100%;
    padding: 1.5rem;
    background: transparent;
    border: none;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-color);
    transition: all 0.3s ease;
}

.faq-item:hover .faq-toggle {
    color: var(--primary-color);
}

.faq-question {
    text-align: left;
}

.faq-icon {
    flex-shrink: 0;
    font-size: 1.5rem;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 1.5rem 1.5rem;
    color: var(--text-light);
    margin: 0;
    line-height: 1.8;
}

/* ============================================================================
   CONTACT FORM (shared by nop-bai.html)
   ============================================================================ */

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group input,
.form-group textarea {
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* ============================================================================
   FOOTER
   ============================================================================ */

.footer {
    position: relative;
    background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
    color: #f3f4f6;
    padding: 4rem 0 1.5rem;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color), var(--primary-color));
}

.footer-content {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1.3fr 1fr;
    gap: 2.5rem;
    margin-bottom: 2.5rem;
}

@media (max-width: 900px) {
    .footer-content {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    }
}

.footer-section h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1.5rem;
    position: relative;
    display: inline-block;
    padding-bottom: 0.6rem;
}

.footer-section h4::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 2rem;
    height: 2px;
    background: var(--primary-light);
    border-radius: 2px;
}

.footer-logo {
    display: block;
    height: 52px;
    width: auto;
    margin-bottom: 1.5rem;
}

.footer-brand {
    font-size: 1.85rem;
    font-weight: 900;
    color: white;
    letter-spacing: -0.02em;
    margin-bottom: 0.4rem;
}

.footer-brand-accent {
    color: var(--primary-light);
}

.footer-tagline {
    color: #9ca3af;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    margin-bottom: 1rem;
}

.footer-social-caption {
    color: #9ca3af;
    font-size: 0.85rem;
    margin-bottom: 1.1rem;
}

.footer-section p {
    color: #d1d5db;
    font-size: 0.9rem;
    line-height: 1.6;
    margin: 0;
}

.footer-section ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-section ul li {
    color: #d1d5db;
    font-size: 0.9rem;
    line-height: 1.5;
}

.footer-section ul li a {
    color: #d1d5db;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--primary-color);
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.social-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: #d1d5db;
    border-radius: 50%;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-btn .icon-svg {
    width: 1.15rem;
    height: 1.15rem;
}

.social-btn:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 8px 18px -6px rgba(var(--primary-color-rgb), 0.6);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #9ca3af;
    font-size: 0.875rem;
}

/* ============================================================================
   SCROLL TO TOP BUTTON
   ============================================================================ */

.scroll-top-btn {
    position: fixed;
    bottom: 1.75rem;
    right: 1.75rem;
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 50%;
    background: white;
    border: 1.5px solid var(--border-color);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    z-index: 990;
    opacity: 0;
    transform: translateY(12px);
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease, background 0.2s ease, color 0.2s ease;
}

.scroll-top-btn.is-visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.scroll-top-btn:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

@media (max-width: 480px) {
    .scroll-top-btn {
        bottom: 1rem;
        right: 1rem;
        width: 2.375rem;
        height: 2.375rem;
    }
}

/* ============================================================================
   FLOATING COUNTDOWN WIDGET
   ============================================================================ */

.floating-countdown {
    position: fixed;
    left: 1.75rem;
    bottom: 1.75rem;
    z-index: 990;
    display: block;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    text-decoration: none;
    border-radius: var(--radius-lg);
    padding: 0.85rem 1.4rem;
    box-shadow: 0 14px 30px -10px rgba(var(--primary-color-rgb), 0.55);
    text-align: center;
    opacity: 0;
    transform: translateY(12px);
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.floating-countdown.is-visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.floating-countdown:hover {
    box-shadow: 0 18px 36px -8px rgba(var(--primary-color-rgb), 0.7);
    transform: translateY(-3px);
}

.floating-countdown-label {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.92;
    margin-bottom: 0.3rem;
}

.floating-countdown-time {
    font-size: 1.4rem;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.02em;
}

.floating-countdown-units {
    display: flex;
    justify-content: space-between;
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    opacity: 0.8;
    margin-top: 0.15rem;
}

@media (max-width: 640px) {
    .floating-countdown {
        left: 1rem;
        bottom: 1rem;
        padding: 0.65rem 1.1rem;
    }

    .floating-countdown-time {
        font-size: 1.15rem;
    }
}

/* ============================================================================
   THE LE PAGE COMPONENTS
   ============================================================================ */

.info-card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2.5rem;
}

@media (max-width: 900px) {
    .info-card-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 560px) {
    .info-card-grid {
        grid-template-columns: 1fr;
    }
}

.info-card {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: transform 0.3s ease, border-color 0.25s ease, box-shadow 0.3s ease;
}

.info-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.info-card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    flex-shrink: 0;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    box-shadow: 0 8px 16px -6px rgba(var(--primary-color-rgb), 0.5);
}

.info-card-icon .icon-svg {
    width: 1.4rem;
    height: 1.4rem;
}

.info-card-label {
    display: block;
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-light);
    margin-bottom: 0.25rem;
}

.info-card-value {
    font-size: 0.98rem;
    font-weight: 700;
    color: var(--text-color);
    line-height: 1.4;
}

/* Callout boxes */
.callout-box {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    padding: 1.5rem 1.75rem;
    border-radius: var(--radius-md);
    border: 2px solid;
    margin-top: 2rem;
}

.callout-box-icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 50%;
    font-weight: 800;
    font-size: 1.1rem;
}

.callout-box p, .callout-box li {
    font-size: 0.92rem;
    line-height: 1.7;
}

.callout-box--warning {
    background: rgba(245, 158, 11, 0.08);
    border-color: rgba(245, 158, 11, 0.35);
}

.callout-box--warning .callout-box-icon {
    background: rgba(245, 158, 11, 0.2);
    color: #92400e;
}

.callout-box--danger {
    background: rgba(220, 38, 38, 0.08);
    border-color: rgba(220, 38, 38, 0.35);
}

.callout-box--danger .callout-box-icon {
    background: rgba(220, 38, 38, 0.2);
    color: #991b1b;
}

.callout-box--muted {
    background: var(--bg-light);
    border-color: var(--border-color);
}

.callout-box--muted .callout-box-icon {
    background: rgba(107, 114, 128, 0.15);
    color: #4b5563;
}

.callout-box ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 0.25rem;
}

.callout-box ul li {
    padding-left: 1.1rem;
    position: relative;
}

.callout-box ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6rem;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
    opacity: 0.6;
}

.callout-box > div > strong {
    display: block;
    font-size: 1rem;
    margin-bottom: 0.35rem;
    color: var(--text-color);
}

@media (max-width: 480px) {
    .callout-box {
        flex-direction: column;
        padding: 1.25rem;
        gap: 0.75rem;
    }

    .callout-box-icon {
        width: 2rem;
        height: 2rem;
    }
}

/* Round card enhancements: task checklist + output badge */
.round-tasks {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin: 1rem 0;
}

.round-tasks li {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.85rem;
    color: var(--text-color);
}

.round-tasks li::before {
    content: '';
    flex-shrink: 0;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--round-accent, var(--primary-color));
}

.round-output {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
    padding: 0.6rem 0.9rem;
    background: rgba(var(--round-accent-rgb, 185, 28, 44), 0.06);
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--round-accent, var(--primary-color));
}

.round-download {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
}

/* Score split bar */
.score-bar-wrap {
    max-width: 640px;
    margin: 2.5rem auto 0;
}

.score-bar {
    display: flex;
    width: 100%;
    height: 3rem;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.score-bar-segment {
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 800;
    font-size: 1.1rem;
}

.score-bar-segment--vote {
    width: 20%;
    background: linear-gradient(135deg, var(--accent-color), #cba76e);
}

.score-bar-segment--judge {
    width: 80%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
}

.score-bar-legend {
    display: flex;
    justify-content: space-between;
    margin-top: 0.85rem;
    font-size: 0.85rem;
    color: var(--text-light);
}

.score-bar-legend strong {
    color: var(--text-color);
}

/* Vote steps */
.vote-steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

@media (max-width: 700px) {
    .vote-steps-grid {
        grid-template-columns: 1fr;
    }
}

/* Point cards */
.point-card-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    max-width: 640px;
    margin: 2rem auto 0;
}

@media (max-width: 560px) {
    .point-card-grid {
        grid-template-columns: 1fr;
    }
}

.point-card {
    text-align: center;
    padding: 2rem 1.5rem;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: transform 0.3s ease, border-color 0.25s ease, box-shadow 0.3s ease;
}

.point-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.point-card-action {
    font-size: 0.95rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.point-card-value {
    font-size: 2.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Vote board branch diagram */
.branch-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 2.5rem;
}

@media (max-width: 700px) {
    .branch-grid {
        grid-template-columns: 1fr;
    }
}

.branch-card {
    text-align: center;
    padding: 2rem 1.5rem;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
}

.branch-card h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.branch-card p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.branch-arrow-down {
    display: flex;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.5rem;
    margin: 0.5rem 0;
}

.branch-result {
    display: inline-block;
    padding: 0.6rem 1.1rem;
    background: rgba(var(--primary-color-rgb), 0.08);
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--primary-color);
}

.branch-result--extra {
    margin-top: 0.75rem;
    background: rgba(168, 136, 86, 0.12);
    color: #8a6d3a;
}

/* Google calendar button */
.btn-calendar {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

@media (max-width: 480px) {
    /* Base .btn already switches to white-space:normal at this breakpoint —
       this button additionally goes full-width so the wrapped 2-line label
       looks intentional rather than an oddly narrow shrink-wrapped box. */
    .btn-calendar {
        width: 100%;
    }
}

/* ============================================================================
   LICH TRINH PAGE COMPONENTS
   ============================================================================ */

/* Roadmap overview: 5 milestones with icon + status badge */
.roadmap-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1.25rem;
    margin-top: 2.5rem;
}

@media (max-width: 1100px) {
    .roadmap-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 640px) {
    .roadmap-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 420px) {
    .roadmap-grid {
        grid-template-columns: 1fr;
    }
}

.roadmap-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 1.5rem 1rem;
    background: white;
    border: 2px solid var(--border-color);
    border-top: 4px solid var(--round-accent, var(--primary-color));
    border-radius: var(--radius-md);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.roadmap-step:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.roadmap-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3.25rem;
    height: 3.25rem;
    border-radius: 50%;
    background: var(--round-accent, var(--primary-color));
    color: white;
    margin-bottom: 0.85rem;
    box-shadow: 0 8px 16px -6px rgba(var(--round-accent-rgb, 185, 28, 44), 0.5);
}

.roadmap-icon .icon-svg {
    width: 1.5rem;
    height: 1.5rem;
}

.roadmap-date {
    font-size: 0.78rem;
    color: var(--text-light);
    margin-bottom: 0.3rem;
}

.roadmap-title {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 0.6rem;
}

.roadmap-status {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.7rem;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 700;
}

.roadmap-status::before {
    content: '';
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: currentColor;
}

.roadmap-status--upcoming {
    background: rgba(107, 114, 128, 0.12);
    color: #4b5563;
}

.roadmap-status--ongoing {
    background: rgba(22, 163, 74, 0.12);
    color: #16a34a;
}

.roadmap-status--ended {
    background: rgba(220, 38, 38, 0.12);
    color: #dc2626;
}

.roadmap-arrow {
    display: none;
}

/* Prep checklist grid */
.checklist-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 2.5rem;
}

@media (max-width: 900px) {
    .checklist-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 560px) {
    .checklist-grid {
        grid-template-columns: 1fr;
    }
}

.checklist-card {
    padding: 1.5rem;
    background: white;
    border: 2px solid var(--border-color);
    border-top: 4px solid var(--round-accent, var(--primary-color));
    border-radius: var(--radius-md);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.checklist-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.checklist-card h4 {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--round-accent, var(--text-color));
}

.checklist-card ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.checklist-card li {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-color);
}

.checklist-check {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 1.15rem;
    height: 1.15rem;
    border-radius: 50%;
    background: rgba(var(--round-accent-rgb, 185, 28, 44), 0.15);
    color: var(--round-accent, var(--primary-color));
    margin-top: 0.1rem;
}

.checklist-check .icon-svg {
    width: 0.7rem;
    height: 0.7rem;
}

/* Results announcement table */
.results-table {
    width: 100%;
    min-width: 480px;
    border-collapse: collapse;
    background: white;
}

.results-table th,
.results-table td {
    padding: 0.9rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
    font-size: 0.9rem;
}

.results-table thead th {
    background: var(--secondary-color);
    color: white;
    white-space: nowrap;
}

.results-table tbody tr:nth-child(even) {
    background: var(--bg-light);
}

.results-table tbody tr:hover {
    background: rgba(var(--primary-color-rgb), 0.06);
}

.results-table-date {
    font-weight: 800;
    color: var(--primary-color);
    white-space: nowrap;
}

/* Mentor spotlight */
.mentor-spotlight {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    padding: 3rem 2rem;
    background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
    color: white;
    margin-top: 2.5rem;
    text-align: center;
}

.mentor-spotlight h3 {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
    color: white;
}

.mentor-spotlight p {
    color: rgba(255, 255, 255, 0.75);
    max-width: 560px;
    margin: 0 auto 2rem;
}

.mentor-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
    max-width: 800px;
    margin: 0 auto;
}

@media (max-width: 700px) {
    .mentor-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.mentor-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.6rem;
    padding: 1.25rem 1rem;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-md);
    transition: transform 0.3s ease, background-color 0.25s ease;
}

.mentor-item:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.1);
}

.mentor-item-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 50%;
    background: rgba(245, 158, 11, 0.2);
    color: #fde68a;
}

.mentor-item span {
    font-size: 0.85rem;
    font-weight: 600;
}

.hero-facts {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.75rem;
}

.hero-fact {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.1rem;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-color);
    box-shadow: var(--shadow-sm);
}

/* ============================================================================
   RESPONSIVE DESIGN
   ============================================================================ */

@media (max-width: 1024px) {
    .container {
        padding: 0 1rem;
    }

    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.5rem; }
}

@media (max-width: 768px) {
    .section {
        padding: var(--section-space-y-mobile) 0;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .carousel-btn {
        width: 2.5rem;
        height: 2.5rem;
        font-size: 1.25rem;
    }

    .hero-ctas {
        flex-direction: column;
    }

    .awards-grid,
    .themes-grid,
    .judges-grid {
        grid-template-columns: 1fr;
    }

    .timeline-track {
        left: 12px;
    }

    .timeline-event {
        grid-template-columns: 1fr;
    }

    .timeline-content {
        grid-column: 1 !important;
        text-align: left !important;
    }
}

@media (max-width: 480px) {
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }

    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .nav-menu {
        display: none;
    }

    .countdown-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
        padding: 1rem;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .cta-buttons .btn {
        width: 100%;
    }
}