/* =========================================================
           1. RESET & NEUTRAL LIGHT THEME SYSTEM (UEH STYLE)
           ========================================================= */
        :root {
            /* Palette Nền Trắng Trung Tính UEH */
            --bg-main: #ffffff;
            --bg-secondary: #faf9f6; /* Off-white / light beige */
            --bg-card: #ffffff;
            --text-main: #1f2937;
            --text-muted: #4b5563;
            --border-color: #e5e7eb;

            /* Màu thương hiệu (Dựa theo Mockup) */
            --blue-primary: #0f2240;      /* Xanh Navy rất đậm, sang trọng */
            --blue-hover: #09152b;
            --blue-light: #18335d;
            --ueh-blue-overlay: linear-gradient(135deg, rgba(255, 255, 255, 0.75) 0%, rgba(248, 250, 252, 0.6) 100%);
            --red-primary: #b58d53;       /* Được đổi thành Vàng Gold đậm để kế thừa class cũ */
            --red-hover: #9e7740;
            --accent-gold: #d6b074;       /* Vàng Gold sáng */
            --bg-beige: #f4eede;        /* Nền be nhạt (Beige) cho các section */
        }

        html { scroll-padding-top: 100px; /* Offset for fixed header */ }
        * { box-sizing: border-box; margin: 0; padding: 0; scroll-behavior: smooth; }
        
        body {
            font-family: 'Montserrat', sans-serif;
            background-color: var(--bg-secondary);
            color: var(--text-main);
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* TYPOGRAPHY & SECTION TITLES */
        .section-title {
            text-align: center;
            font-size: 2.2rem;
            font-weight: 800;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 40px;
            color: var(--blue-primary);
            position: relative;
        }
        .section-title::after {
            content: '';
            display: block;
            width: 70px;
            height: 3px;
            background: var(--red-primary);
            margin: 15px auto 0;
        }

        /* NEW UTILITY CLASSES FOR PREMIUM REDESIGN */
        .section-dark {
            background-color: var(--blue-primary);
            color: #ffffff;
        }
        .section-dark .section-title { color: #ffffff; }
        .section-dark .section-title::after { background: var(--accent-gold); }
        .section-dark p { color: rgba(255,255,255,0.85); }
        
        .section-beige {
            background-color: var(--bg-beige);
        }

        .gold-btn {
            background: var(--red-primary);
            color: #ffffff;
            border: none;
            padding: 14px 35px;
            font-weight: 700;
            font-size: 0.95rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            cursor: pointer;
            transition: 0.3s;
            display: inline-block;
            text-decoration: none;
        }
        .gold-btn:hover {
            background: var(--red-hover);
            transform: translateY(-2px);
        }

        /* PREMIUM HOVER REVEAL CARDS */
        .acc-grid-container {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            align-items: stretch; 
            margin-top: 20px;
        }
        @media (max-width: 768px) {
            .acc-grid-container { grid-template-columns: 1fr; }
        }
        .acc-card {
            background: linear-gradient(145deg, #ffffff 0%, #faf8f5 100%);
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: 0 5px 20px rgba(0,0,0,0.02);
            overflow: hidden;
            transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
            position: relative;
            padding: 30px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            min-height: 140px;
            z-index: 1;
        }
        .acc-card::after {
            content: attr(data-num);
            position: absolute;
            top: -5px;
            right: -5px;
            font-size: 7rem;
            font-weight: 900;
            color: var(--blue-primary);
            opacity: 0.03;
            z-index: -1;
            transition: all 0.5s ease;
            line-height: 1;
            pointer-events: none;
        }
        .acc-card::before {
            content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 4px;
            background: transparent; transition: 0.4s;
        }
        .acc-header {
            transform: translateY(15px);
            transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
            display: flex;
            align-items: center;
        }
        .acc-header h4 {
            color: var(--blue-primary);
            margin: 0; font-size: 1.1rem; font-weight: 800;
            text-transform: uppercase; letter-spacing: 0.5px; transition: 0.3s;
            display: flex; align-items: center;
        }
        .acc-header h4::before {
            content: ''; display: inline-block; width: 0; height: 2px;
            background: var(--red-primary); margin-right: 0; transition: all 0.4s ease;
        }
        .acc-content {
            max-height: 0; opacity: 0; overflow: hidden;
            transform: translateY(20px);
            transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .acc-content p {
            font-size: 0.95em; color: var(--text-muted); margin: 0;
            line-height: 1.6; text-align: justify;
        }
        /* Hover State */
        .acc-card:hover {
            box-shadow: 0 15px 35px rgba(15, 43, 91, 0.08);
            transform: translateY(-5px);
            border-color: rgba(181, 141, 83, 0.4);
            background: #ffffff;
        }
        .acc-card:hover::after {
            color: var(--red-primary);
            opacity: 0.08;
            transform: scale(1.1) translate(-10px, 10px);
        }
        .acc-card:hover::before { background: var(--red-primary); }
        .acc-card:hover .acc-header { transform: translateY(0); }
        .acc-card:hover .acc-header h4 { color: var(--red-primary); }
        .acc-card:hover .acc-header h4::before { width: 25px; margin-right: 12px; }
        .acc-card:hover .acc-content {
            max-height: 250px; opacity: 1; transform: translateY(0); margin-top: 15px;
        }

        /* SCALE CARDS & MODAL */
        .scale-card {
            background: var(--bg-secondary);
            padding: 25px;
            border-radius: 12px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.02);
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
            padding-bottom: 40px !important;
        }
        .scale-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(15, 34, 64, 0.1) !important;
        }
        .scale-indicator {
            position: absolute;
            bottom: 20px;
            right: 25px;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--accent-gold);
            text-transform: uppercase;
            opacity: 0;
            transform: translateX(-10px);
            transition: all 0.3s ease;
        }
        .scale-card:hover .scale-indicator {
            opacity: 1;
            transform: translateX(0);
        }

        /* CUSTOM MODAL */
        .custom-modal-overlay {
            position: fixed; top: 0; left: 0; width: 100%; height: 100%;
            background: rgba(15, 34, 64, 0.8);
            backdrop-filter: blur(5px);
            z-index: 9999;
            display: flex; align-items: center; justify-content: center;
            opacity: 0; visibility: hidden;
            transition: all 0.3s ease;
        }
        .custom-modal-overlay.active {
            opacity: 1; visibility: visible;
        }
        .custom-modal {
            background: #fff;
            width: 95%; max-width: 850px;
            border-radius: 20px;
            padding: 50px;
            position: relative;
            transform: translateY(30px);
            transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            box-shadow: 0 20px 50px rgba(0,0,0,0.2);
            max-height: 85vh;
            display: flex;
            flex-direction: column;
        }
        .custom-modal-overlay.active .custom-modal {
            transform: translateY(0);
        }
        .custom-modal-close {
            position: absolute; top: 25px; right: 25px;
            width: 40px; height: 40px;
            background: #f1f5f9; border-radius: 50%;
            display: flex; align-items: center; justify-content: center;
            cursor: pointer; font-size: 1.2rem; font-weight: bold; color: var(--text-main);
            transition: all 0.2s ease;
            z-index: 10;
        }
        .custom-modal-close:hover {
            background: var(--red-primary); color: #fff; transform: rotate(90deg);
        }
        .custom-modal-header {
            margin-bottom: 25px;
            padding-bottom: 20px;
            border-bottom: 2px dashed #e2e8f0;
            text-align: center;
        }
        .custom-modal-header h3 {
            color: var(--blue-primary);
            font-size: 2.2rem; font-weight: 900;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin: 0;
        }
        .custom-modal-body {
            overflow-y: auto;
            padding-right: 20px;
            color: var(--text-main);
            line-height: 1.8;
            font-size: 1.05rem;
        }
        .custom-modal-body p {
            margin-bottom: 20px; text-align: justify;
        }
        .custom-modal-body strong {
            color: var(--blue-primary);
            font-size: 1.1rem;
        }
        .custom-modal-body ul {
            margin-bottom: 20px; padding-left: 20px;
        }
        .custom-modal-body li {
            margin-bottom: 10px;
        }

        /* Thanh cuộn trẻ trung trong modal */
        .custom-modal-body::-webkit-scrollbar {
            width: 8px;
        }
        .custom-modal-body::-webkit-scrollbar-track {
            background: #f1f5f9; 
            border-radius: 10px;
        }
        .custom-modal-body::-webkit-scrollbar-thumb {
            background: var(--accent-gold); 
            border-radius: 10px;
        }
        .custom-modal-body::-webkit-scrollbar-thumb:hover {
            background: var(--blue-primary); 
        }

        /* VALUE CARDS (WITH ZOOM OUT BG) */
        .value-card {
            position: relative;
            border: 1px solid rgba(255,255,255,0.15); 
            border-radius: 12px; 
            overflow: hidden;
            transition: all 0.3s ease;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
        }
        .value-card-bg {
            position: absolute;
            top: 0; left: 0; width: 100%; height: 100%;
            background-size: cover;
            background-position: center;
            transform: scale(1.15); /* Start slightly zoomed in */
            transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            z-index: 1;
        }
        .value-card::before {
            content: "";
            position: absolute;
            top: 0; left: 0; width: 100%; height: 100%;
            background: linear-gradient(135deg, rgba(15,34,64,0.85) 0%, rgba(15,34,64,0.98) 100%);
            z-index: 2;
            transition: background 0.6s ease;
        }
        .value-card:hover .value-card-bg {
            transform: scale(1); /* Zoom out effect */
        }
        .value-card:hover::before {
            background: linear-gradient(135deg, rgba(15,34,64,0.7) 0%, rgba(15,34,64,0.9) 100%);
        }
        .value-card-content {
            position: relative;
            z-index: 3;
            padding: 40px 30px;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .container { max-width: 100%; margin: 0 auto; padding: 60px 4%; }
        section { padding-top: 20px; padding-bottom: 20px; }

        /* GRID SYSTEM */
        .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
        .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
        .grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 25px; }
        .grid-5 { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; }

        @media (max-width: 1200px) { .grid-5 { grid-template-columns: repeat(3, 1fr); gap: 25px; } }
        @media (max-width: 992px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; } .grid-5 { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 768px) { 
            .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
            .section-title { font-size: 1.7rem; }
        }

        /* HEADER & NAVIGATION BAR */
        header {
            position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
            background: transparent;
            display: flex; justify-content: space-between; align-items: center;
            padding: 15px 4%; border-bottom: none;
            transition: all 0.3s ease;
        }
        header.scrolled {
            background: rgba(15, 43, 91, 0.98);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            padding: 10px 4%;
        }
        header.header-inner {
            background: rgba(15, 43, 91, 0.98);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        header .logo-wrapper {
            display: flex; align-items: center; gap: 20px; cursor: pointer;
            background: transparent;
            padding: 5px 0;
            border: none;
            transition: all 0.3s ease;
        }
        header.scrolled .logo-wrapper {
            background: transparent; backdrop-filter: none; box-shadow: none; border-color: transparent; padding: 5px 0;
        }

        .header-logo { transition: all 0.3s ease; }
        
        .ceo-text { color: var(--blue-primary) !important; transition: all 0.3s ease; }
        
        .mobile-menu-toggle { display: none; color: #ffffff; transition: all 0.3s ease; }

        .nav-links { list-style: none; display: flex; align-items: center; gap: 14px; }
        .nav-links a {
            color: #ffffff; text-decoration: none; font-weight: 700; font-size: 0.85rem;
            text-transform: uppercase; letter-spacing: 0.5px; transition: all 0.3s ease;
            padding: 8px 12px; border-radius: 20px; white-space: nowrap;
        }
        .nav-links a:hover { color: #fcd34d; background: rgba(255, 255, 255, 0.1); }
        header.scrolled .nav-links a:hover { color: #fcd34d; background: rgba(255, 255, 255, 0.1); }
        
        /* NÚT ĐĂNG KÝ NGAY - BO TRÒN HOÀN TOÀN (ROUNDED PILL) */
        .btn-nav-apply {
            background: var(--red-primary) !important;
            color: #ffffff !important; padding: 10px 20px !important;
            border-radius: 4px !important; font-weight: 700 !important;
            letter-spacing: 0.5px;
            transition: all 0.3s ease !important;
        }
        .btn-nav-apply:hover {
            background: var(--red-hover) !important;
            transform: translateY(-1px);
        }

        /* KHUNG CHUYỂN NGÔN NGỮ TẬP TRUNG (SEGMENTED TOGGLE BOX) */
        .lang-switch-box {
            display: inline-flex;
            align-items: center;
            background: #f1f5f9;
            border: 1.5px solid var(--blue-primary);
            border-radius: 50px;
            padding: 2px;
            margin-left: 10px;
            flex-shrink: 0;
        }

        .lang-switch-box a {
            padding: 5px 11px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 800;
            text-decoration: none;
            color: var(--blue-primary);
            transition: all 0.25s ease;
            line-height: 1;
        }

        .lang-switch-box a.active {
            background: var(--blue-primary);
            color: #ffffff !important;
            box-shadow: 0 2px 6px rgba(0, 51, 102, 0.25);
        }

        .lang-switch-box a:not(.active):hover {
            color: var(--red-primary);
        }

        /* HERO SECTION */
        .hero-banner {
            position: relative; width: 100%; min-height: 90vh; overflow: hidden;
            display: flex; justify-content: center; align-items: center;
            padding-top: 110px; padding-bottom: 60px;
            color: var(--blue-primary);
            background: #f8fafc;
        }
        .hero-banner::after {
            content: ''; position: absolute; inset: 0; background: #1c3e8a94; z-index: 2;
        }
        .hero-banner video { opacity: 0.6 !important; z-index: 1 !important; }

        /* CARD STYLE (LIGHT THEME) */
        .card {
            background: var(--bg-card); padding: 32px; border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 20px rgba(0,0,0,0.05); position: relative; overflow: hidden;
            transition: all 0.3s ease;
        }
        .card::before {
            content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 4px;
            background: var(--blue-primary);
        }
        .card:hover { transform: translateY(-5px); box-shadow: 0 10px 25px rgba(0,0,0,0.1); }

        /* IMAGE CARDS */
        .card-img-bg { overflow: hidden; 
            position: relative; background-size: cover; background-position: center;
            border-radius: 12px; overflow: hidden; border: 1px solid var(--border-color);
            box-shadow: 0 4px 15px rgba(0,0,0,0.05); transition: all 0.3s ease; min-height: 280px;
        }
        .card-img-bg:hover { transform: scale(1.03); }
        .card-img-bg .overlay-content {
            position: relative; z-index: 2; padding: 30px;
            background: linear-gradient(180deg, rgba(255, 255, 255, 0.7) 0%, rgba(255, 255, 255, 0.98) 100%);
            backdrop-filter: blur(5px);
            height: 100%; display: flex; flex-direction: column; justify-content: flex-end; color: var(--text-main);
        }

        /* FEATURED IMAGE FRAME */
        .img-frame {
            position: relative; border-radius: 12px; overflow: hidden;
            border: 1px solid var(--border-color); box-shadow: 0 5px 20px rgba(0,0,0,0.08);
        }
        .img-frame img { width: 100%; height: 100%; object-fit: cover; display: block; }

        /* STATS BOX */
        .stat-box { background: rgba(255, 255, 255, 0.9); backdrop-filter: blur(10px); padding: 35px 20px; text-align: center; border-radius: 16px; border: 1px solid rgba(255,255,255,0.8); position: relative; transition: all 0.3s ease; box-shadow: 0 10px 30px rgba(15, 43, 91, 0.08); }
        .stat-box::after {
            content: ''; position: absolute; bottom: 0; left: 20%; width: 60%; height: 3px;
            background: var(--red-primary); border-radius: 4px;
        }
        .stat-box h3 { font-size: 2.8em; margin-bottom: 5px; font-weight: 900; color: var(--blue-primary); }
        .stat-box p { color: var(--text-muted); font-weight: 700; font-size: 0.9em; text-transform: uppercase; letter-spacing: 0.5px; }

        /* FORM */
        .form-card {
            background: rgba(255, 255, 255, 0.85); padding: 35px; border-radius: 16px;
            border: 1px solid rgba(255, 255, 255, 0.6); box-shadow: 0 15px 35px rgba(15, 43, 91, 0.08); color: var(--text-main);
            backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
        }
        .form-input {
            width: 100%; padding: 12px 16px; background: #ffffff;
            border: 1px solid #cbd5e1; border-radius: 8px; color: var(--text-main);
            font-size: 0.95rem; transition: 0.3s;
        }
        .form-input:focus { outline: none; border-color: var(--blue-primary); background: #ffffff; box-shadow: 0 0 0 3px rgba(15, 43, 91, 0.1); }
        .btn-submit-glow {
            background: linear-gradient(135deg, var(--red-primary) 0%, var(--red-hover) 100%); color: white; border: none; padding: 14px; border-radius: 8px;
            font-weight: 800; font-size: 1rem; cursor: pointer; text-transform: uppercase;
            letter-spacing: 0.5px; transition: all 0.3s ease; box-shadow: 0 6px 15px rgba(212, 175, 55, 0.3);
        }
        .btn-submit-glow:hover { box-shadow: 0 8px 20px rgba(212, 175, 55, 0.45); transform: translateY(-2px); }

        /* NEWS SLIDER */
        .news-card { background: #ffffff; border-radius: 12px; overflow: hidden; border: 1px solid var(--border-color); transition: all 0.3s ease; display: flex; flex-direction: column; height: 100%; box-shadow: 0 4px 15px rgba(0,0,0,0.04); }
        .news-card:hover { transform: translateY(-5px); box-shadow: 0 8px 25px rgba(0,0,0,0.08); }
        .news-thumb-link { display: block; overflow: hidden; height: 190px; position: relative; }
        .news-thumb { width: 100%; height: 100%; background-size: cover; background-position: center; }
        .news-badge { position: absolute; top: 12px; left: 12px; color: #fff; padding: 4px 12px; border-radius: 4px; font-size: 0.75em; font-weight: 800; text-transform: uppercase; }
        .badge-thong-bao { background: var(--red-primary); }
        .badge-tin-tuc { background: var(--blue-primary); }
        .news-content { padding: 20px; flex-grow: 1; display: flex; flex-direction: column; }
        .news-title { font-size: 1.05em; color: var(--blue-primary); margin-bottom: 10px; font-weight: 700; text-decoration: none; line-height: 1.4; }
        .news-title:hover { color: var(--red-primary); }

        .slider-wrapper { position: relative; }
        .slider-container { width: 100%; overflow: hidden; border-radius: 8px; padding: 10px 0; }
        .slider-track { display: flex; transition: transform 0.4s ease; gap: 20px; }
        .slider-item { flex: 0 0 calc((100% - 40px) / 3); }
        @media (max-width: 992px) { .slider-item { flex: 0 0 calc((100% - 20px) / 2); } }
        @media (max-width: 600px) { .slider-item { flex: 0 0 100%; } }

        .slide-btn {
            background: var(--blue-primary); color: white; border: none; width: 42px; height: 42px;
            border-radius: 50%; cursor: pointer; font-size: 16px; z-index: 10; position: absolute; top: 50%; transform: translateY(-50%);
            box-shadow: 0 4px 10px rgba(0,0,0,0.15); transition: 0.3s; display: flex; align-items: center; justify-content: center;
        }
        .slide-btn:hover { background: var(--red-primary); }
        .prev-btn { left: -20px; }
        .next-btn { right: -20px; }

        /* SCHEDULING TABLE */
        .schedule-container {
            width: 100%; border-radius: 12px; overflow: visible;
            border: 1px solid var(--border-color); background: #ffffff; padding: 10px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.05);
        }
        @media (max-width: 992px) {
            .schedule-container { overflow-x: auto; }
        }
        .schedule-table { width: 100%; border-collapse: separate; border-spacing: 6px; font-size: 0.9rem; }
        .schedule-table th { padding: 16px 12px; font-weight: 800; text-transform: uppercase; text-align: center; color: #ffffff; border-radius: 6px; }
        .th-date { width: 22%; background: transparent; }
        .th-sang { width: 26%; background: var(--blue-primary); }
        .th-chieu { width: 26%; background: #002244; }
        .th-toi { width: 26%; background: #112a66; }

        .schedule-table td { padding: 14px 16px; background: #f8f9fa; color: var(--text-main); font-weight: 600; border-radius: 6px; border: 1px solid var(--border-color); }
        .td-time { background: #e2e8f0 !important; color: var(--blue-primary) !important; font-weight: 800 !important; border-left: 4px solid var(--blue-primary) !important; }
        .td-full-day { text-align: center; background: #e0f2fe !important; color: var(--blue-primary); font-weight: 700; }
        .td-session { text-align: center; }
        .td-session.highlight-blue { background: var(--blue-primary) !important; color: #ffffff; }

        
        /* PAGE LOAD ANIMATIONS */
        @keyframes fadeUpIn {
            from { opacity: 0; transform: translateY(40px); }
            to { opacity: 1; transform: translateY(0); }
        }
        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }
        .hero-banner .hero-content-anim {
            animation: fadeUpIn 1.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
        }
        
        
        /* PREMIUM SHADOWS & STYLES */
        .card, .stat-box, .news-card {
            border: 1px solid rgba(255, 255, 255, 0.6);
            background: #ffffff;
            box-shadow: 0 12px 30px rgba(15, 43, 91, 0.04);
            border-radius: 16px;
        }
        .card:hover, .stat-box:hover, .news-card:hover {
            box-shadow: 0 20px 45px rgba(15, 43, 91, 0.09);
            transform: translateY(-6px);
        }

        /* --- 3D COVERFLOW CAROUSEL --- */
        .prize-3d-carousel {
            position: relative;
            width: 100%;
            max-width: 1000px;
            margin: 0 auto;
            padding-top: 40px;
            padding-bottom: 60px;
            perspective: 1500px;
        }

        .carousel-3d-container {
            position: relative;
            width: 100%;
            height: 350px;
            display: flex;
            justify-content: center;
            align-items: center;
            transform-style: preserve-3d;
        }

        .carousel-3d-item {
            position: absolute;
            width: 450px;
            transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            cursor: pointer;
            z-index: 1;
            opacity: 0;
            transform: translateX(0) scale(0.5) translateZ(-400px);
        }

        /* Active Item (Center) */
        .carousel-3d-item.active {
            z-index: 3;
            opacity: 1;
            transform: translateX(0) scale(1) translateZ(0);
        }

        /* Prev Item (Left) */
        .carousel-3d-item.prev {
            z-index: 2;
            opacity: 0.6;
            transform: translateX(-60%) scale(0.7) translateZ(-150px);
        }

        /* Next Item (Right) */
        .carousel-3d-item.next {
            z-index: 2;
            opacity: 0.6;
            transform: translateX(60%) scale(0.7) translateZ(-150px);
        }
        
        .carousel-3d-item.hidden {
            opacity: 0;
            z-index: 0;
            transform: translateX(0) scale(0.5) translateZ(-400px);
        }

        .carousel-3d-card {
            background: rgba(15, 34, 64, 0.85);
            backdrop-filter: blur(10px);
            border: 2px solid rgba(255, 255, 255, 0.15);
            border-radius: 20px;
            padding: 40px 20px;
            text-align: center;
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3), inset 0 0 20px rgba(255,255,255,0.05);
            position: relative;
            overflow: hidden;
        }

        .carousel-3d-card::before {
            content: "";
            position: absolute;
            top: 0; left: 0; width: 100%; height: 100%;
            background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent);
            pointer-events: none;
        }

        .carousel-3d-card.champion {
            border: 3px solid #fcd34d;
            box-shadow: 0 15px 50px rgba(212, 175, 55, 0.4), inset 0 0 30px rgba(212, 175, 55, 0.2);
            background: rgba(20, 45, 80, 0.95);
        }

        .c3d-title {
            color: #e2e8f0;
            font-size: 1.8rem;
            font-weight: 800;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 15px;
            text-shadow: 0 2px 10px rgba(0,0,0,0.5);
        }

        .carousel-3d-card.champion .c3d-title {
            background: linear-gradient(to right, #fcd34d, #ffffff, #fcd34d);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            font-size: 2.8rem;
            text-shadow: none;
            filter: drop-shadow(0 2px 10px rgba(212, 175, 55, 0.4));
        }

        .c3d-amount {
            color: #fcd34d;
            font-size: 1.6rem;
            font-weight: 700;
        }

        .carousel-3d-card.champion .c3d-amount {
            font-size: 2.2rem;
            color: #fff;
            text-shadow: 0 4px 15px rgba(0,0,0,0.5);
        }

        @media (max-width: 768px) {
            .carousel-3d-item { width: 240px; }
            .carousel-3d-item.prev { transform: translateX(-55%) scale(0.7) translateZ(-150px); }
            .carousel-3d-item.next { transform: translateX(55%) scale(0.7) translateZ(-150px); }
            .carousel-3d-card.champion .c3d-title { font-size: 1.6rem; }
            .carousel-3d-card.champion .c3d-amount { font-size: 1.4rem; }
        }

        .btn-golden {
            display: inline-block;
            padding: 16px 50px;
            font-size: 1.25rem;
            font-weight: 800;
            text-transform: uppercase;
            border-radius: 50px;
            letter-spacing: 2px;
            background: linear-gradient(135deg, #b58d53, #fcd34d, #b58d53);
            background-size: 200% auto;
            color: #0f2240;
            box-shadow: 0 10px 25px rgba(252, 211, 77, 0.4), inset 0 2px 5px rgba(255, 255, 255, 0.6);
            text-decoration: none;
            border: 2px solid #ffeba1;
            transition: all 0.4s ease;
        }

        .btn-golden:hover {
            background-position: right center;
            color: #0f2240;
            transform: translateY(-3px) scale(1.05);
            box-shadow: 0 15px 35px rgba(252, 211, 77, 0.6), inset 0 2px 5px rgba(255, 255, 255, 0.8);
        }


        /* SPONSORS SLIDER */
        .sponsor-slider-container {
            width: 100%; overflow: hidden; padding: 30px 0; position: relative;
        }
        .sponsor-slider-container::before, .sponsor-slider-container::after {
            content: ''; position: absolute; top: 0; width: 150px; height: 100%; z-index: 2; pointer-events: none;
        }
        .sponsor-slider-container::before {
            left: 0; background: linear-gradient(to right, var(--bg-secondary) 0%, transparent 100%);
        }
        .sponsor-slider-container::after {
            right: 0; background: linear-gradient(to left, var(--bg-secondary) 0%, transparent 100%);
        }
        .sponsor-track {
            display: flex; width: calc(250px * 10); /* 5 logos duplicated */
            animation: scrollSponsors 25s linear infinite; align-items: center;
        }
        .sponsor-track:hover { animation-play-state: paused; }
        .sponsor-track img {
            width: 200px; margin: 0 25px; filter: none; opacity: 1;
            transition: all 0.4s ease; cursor: pointer; object-fit: contain;
        }
        .sponsor-track img:hover { transform: scale(1.08); }
        @keyframes scrollSponsors {
            0% { transform: translateX(0); }
            100% { transform: translateX(calc(-250px * 5)); }
        }

        /* MEDIA PARTNERS STAGGERED ARTISTIC LAYOUT */
        .media-art-grid {
            display: flex; justify-content: center; align-items: flex-start; gap: 40px;
            padding: 50px 20px 60px 20px; max-width: 1100px; margin: 0 auto;
        }
        .art-card {
            flex: 1; background: #ffffff; border-radius: 16px; padding: 50px 30px;
            text-align: center; box-shadow: 0 15px 40px rgba(15, 43, 91, 0.05);
            border: 1px solid rgba(15, 43, 91, 0.08); position: relative; transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .art-card::before {
            content: ''; position: absolute; top: -2px; left: 50%; transform: translateX(-50%);
            width: 60px; height: 4px; background: var(--red-primary); border-radius: 4px;
        }
        .art-card:nth-child(2) {
            transform: translateY(-40px); background: linear-gradient(145deg, var(--blue-primary) 0%, #091b3e 100%);
            box-shadow: 0 20px 50px rgba(15, 43, 91, 0.2);
        }
        .art-card:hover { transform: translateY(-10px); box-shadow: 0 25px 50px rgba(15, 43, 91, 0.12); }
        .art-card:nth-child(2):hover { transform: translateY(-50px); box-shadow: 0 30px 60px rgba(15, 43, 91, 0.25); }
        
        .art-card img { height: 55px; object-fit: contain; margin-bottom: 30px; transition: 0.4s; }
        .art-card:hover img { transform: scale(1.1); }
        
        .art-card h4 { font-size: 1.25rem; color: var(--blue-primary); margin-bottom: 12px; font-weight: 900; letter-spacing: 0.5px; }
        .art-card:nth-child(2) h4 { color: #ffffff; }
        .art-card p { color: var(--text-muted); font-size: 0.95rem; line-height: 1.6; margin: 0; }
        .art-card:nth-child(2) p { color: rgba(255, 255, 255, 0.85); }

        @media (max-width: 768px) {
            .media-art-grid { flex-direction: column; align-items: center; gap: 30px; padding: 20px; }
            .art-card { width: 100%; max-width: 400px; }
            .art-card:nth-child(2) { transform: translateY(0); }
            .art-card:nth-child(2):hover { transform: translateY(-10px); }
        }

        /* REVEAL & SCROLL TOP */
        

        #scrollToTopBtn {
            display: none; position: fixed; bottom: 30px; right: 30px; z-index: 999;
            border: none; background: var(--red-primary); color: white; cursor: pointer;
            width: 45px; height: 45px; border-radius: 50%; box-shadow: 0 4px 15px rgba(0,0,0,0.2); transition: 0.3s;
        }
        #scrollToTopBtn:hover { background: var(--red-hover); transform: scale(1.1); }
    
        /* MOBILE MENU TOGGLE */
        .mobile-menu-toggle { display: none !important; font-size: 28px; cursor: pointer; color: var(--blue-primary); padding: 5px; }
        .main-nav { display: flex; align-items: center; }
        
        /* RESPONSIVE TABLE */
        .table-responsive { width: 100%; }
        
        @media (max-width: 992px) {
            .mobile-menu-toggle { display: block !important; }
            .main-nav {
                display: none; position: absolute; top: 100%; left: 0; width: 100%;
                background: rgba(255, 255, 255, 0.98); backdrop-filter: blur(15px);
                flex-direction: column; padding: 10px 0 25px 0; box-shadow: 0 10px 25px rgba(0,0,0,0.15);
                border-top: 1px solid var(--border-color);
            }
            .main-nav.active { display: flex; }
            .nav-links { flex-direction: column; width: 100%; gap: 0; align-items: stretch; margin: 0; padding: 0; }
            .nav-links li { width: 100%; list-style: none; }
            .nav-links a { 
                width: 100%; display: block; padding: 16px 25px; text-align: left; 
                border-bottom: 1px solid rgba(0,0,0,0.1); font-size: 0.95rem; border-radius: 0;
            color: var(--blue-primary) !important;
            }
            .nav-links a:hover { color: var(--red-primary) !important; background: rgba(0,0,0,0.03) !important; }
            /* Tránh border gạch dưới cho mục cuối cùng nếu cần, nhưng Đăng ký ngay là ngoại lệ */
            .nav-links a.btn-nav-apply {
                margin: 20px 25px 5px 25px; width: calc(100% - 50px); text-align: center; 
                border-radius: 50px !important; border-bottom: none;
            }
            .lang-switch-box { margin: 0; }
        }
        /* GRADIENT VÀNG BROCHURE */
        .text-gold-gradient {
            background: linear-gradient(180deg, #D4AF37 0%, #FFF6CC 45%, #D4AF37 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            display: inline-block;
            font-weight: 900;
        }


/* NEWS DETAIL SPECIFIC STYLES */



/* NEWS DETAIL SPECIFIC STYLES */
/* BREADCRUMB */
.breadcrumb-bar {
display: flex; justify-content: space-between; align-items: center;
margin-bottom: 20px; padding-bottom: 12px; border-bottom: 1px solid var(--border-color);
font-size: 0.88rem; flex-wrap: wrap; gap: 10px;
}
.breadcrumb-links a { color: var(--text-muted); text-decoration: none; font-weight: 500; }
.breadcrumb-links a:hover { color: var(--blue-primary); }
.breadcrumb-links span { color: var(--blue-primary); font-weight: 700; }

.back-btn {
color: var(--blue-primary); font-weight: 700; text-decoration: none;
display: inline-flex; align-items: center; gap: 4px; transition: 0.3s; font-size: 0.85rem;
padding: 4px 12px; border-radius: 20px; background: #e2e8f0;
}
.back-btn:hover { color: #ffffff; background: var(--blue-primary); }

/* ARTICLE CARD */
.article-card {
background: #ffffff; padding: 35px; border-radius: 12px;
border: 1px solid var(--border-color); box-shadow: 0 4px 20px rgba(0,0,0,0.04);
}

.news-badge {
display: inline-block; padding: 5px 14px; border-radius: 20px;
font-size: 0.78rem; font-weight: 800; text-transform: uppercase; color: #fff;
margin-bottom: 14px;
}
.badge-thong-bao { background: var(--red-primary); }
.badge-tin-tuc { background: var(--blue-primary); }

.article-title {
font-size: 2.1rem; font-weight: 800; color: var(--blue-primary);
line-height: 1.3; margin-bottom: 16px;
}

.article-meta {
display: flex; gap: 20px; font-size: 0.85rem; color: var(--text-muted);
margin-bottom: 22px; padding-bottom: 16px; border-bottom: 1px solid var(--border-color);
}

.article-summary {
font-size: 1.05rem; font-weight: 600; color: var(--text-main);
line-height: 1.6; padding: 16px 20px; background: #f8f9fa;
border-left: 4px solid var(--blue-primary); border-radius: 0 8px 8px 0;
margin-bottom: 25px;
}

.article-thumbnail {
width: 100%; max-height: 450px; object-fit: cover;
border-radius: 8px; margin-bottom: 25px; border: 1px solid var(--border-color);
}

.article-body {
font-size: 1.02rem; color: #333333; line-height: 1.8;
}
.article-body p { margin-bottom: 18px; }
.article-body img { max-width: 100%; height: auto; border-radius: 8px; margin: 18px 0; }
.article-body h2, .article-body h3 { color: var(--blue-primary); margin: 25px 0 12px 0; font-weight: 800; }

/* WIDGET SIDEBAR */
.sidebar-widgets {
position: sticky; top: 90px;
display: flex; flex-direction: column; gap: 24px;
}

.widget-card {
background: #ffffff; border-radius: 12px; padding: 22px;
border: 1px solid var(--border-color); box-shadow: 0 4px 15px rgba(0,0,0,0.04);
position: relative; overflow: hidden;
}

.widget-card::before {
content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 3px;
background: var(--blue-primary);
}

.widget-card.widget-accent::before { background: var(--red-primary); }

.widget-title {
font-size: 1rem; font-weight: 800; color: var(--blue-primary);
text-transform: uppercase; margin-bottom: 16px; letter-spacing: 0.5px;
display: flex; align-items: center; gap: 8px;
}

.widget-news-list { list-style: none; display: flex; flex-direction: column; gap: 14px; }
.widget-news-item {
display: flex; gap: 12px; align-items: center; padding-bottom: 12px;
border-bottom: 1px dashed var(--border-color);
}
.widget-news-item:last-child { border-bottom: none; padding-bottom: 0; }
.widget-news-thumb {
width: 70px; height: 52px; border-radius: 6px; background-size: cover; background-position: center;
flex-shrink: 0; border: 1px solid var(--border-color);
}
.widget-news-info { display: flex; flex-direction: column; }
.widget-news-title {
font-size: 0.85rem; font-weight: 700; color: var(--blue-primary); text-decoration: none;
line-height: 1.35; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
transition: 0.2s;
}
.widget-news-title:hover { color: var(--red-primary); }
.widget-news-date { font-size: 0.72rem; color: var(--text-muted); margin-top: 4px; }

#scrollToTopBtn {
    display: none;
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 99999;
    cursor: pointer;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--blue-primary, #0f2240);
    box-shadow: 0 4px 15px rgba(0,0,0,0.25);
    transition: transform 0.3s, background-color 0.3s;
    align-items: center;
    justify-content: center;
}
#scrollToTopBtn:hover {
    background: #1a2b44;
    transform: scale(1.1);
}
#scrollToTopBtn svg.progress-ring {
    position: absolute;
    top: 0;
    left: 0;
    transform: rotate(-90deg);
}
#scrollToTopBtn .progress-ring__circle {
    stroke-linecap: round;
    stroke-dasharray: 132;
    stroke-dashoffset: 132;
    transition: stroke-dashoffset 0.1s linear;
}
#scrollToTopBtn .arrow-up {
    color: white;
    font-size: 0.95rem;
    position: relative;
    z-index: 2;
    transition: transform 0.3s ease;
}
#scrollToTopBtn:hover .arrow-up {
    transform: translateY(-2px);
}

/* THÊM TỐI ƯU HIỂN THỊ VĂN BẢN (TEXT JUSTIFY) */
p { text-align: justify; }

    /* --- 8. TIMELINE (HÀNH TRÌNH) --- */
    .timeline-container {
        position: relative;
        width: 100%;
        max-width: 1000px;
        margin: 0 auto;
        padding: 40px 0;
    }

    .timeline-line {
        position: absolute;
        top: 0;
        bottom: 0;
        left: 50%;
        width: 1px;
        background-color: #64748b;
        transform: translateX(-50%);
        z-index: 1;
    }

    .timeline-item {
        position: relative;
        display: flex;
        justify-content: space-between;
        align-items: center;
        width: 100%;
        margin-bottom: 120px;
        z-index: 2;
    }
    
    .timeline-item:last-child {
        margin-bottom: 0;
    }

    .timeline-item:nth-child(even) {
        flex-direction: row-reverse;
    }

    .timeline-left, .timeline-right {
        width: 45%;
        display: flex;
        align-items: center;
    }

    /* Đảo ngược căn chỉnh cho mục chẵn */
    .timeline-item:nth-child(odd) .timeline-left { justify-content: flex-end; }
    .timeline-item:nth-child(even) .timeline-left { justify-content: flex-start; }
    
    .timeline-item:nth-child(odd) .timeline-right { justify-content: flex-start; }
    .timeline-item:nth-child(even) .timeline-right { justify-content: flex-end; }


    .timeline-center {
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
        display: flex;
        flex-direction: column;
        align-items: center;
        width: 60px;
        z-index: 3;
    }

    .timeline-year {
        color: var(--accent-red);
        font-weight: 900;
        font-size: 1.4rem;
        background: var(--bg-beige);
        padding: 5px 0;
        margin-bottom: 20px;
    }

    .timeline-dot {
        width: 16px;
        height: 16px;
        background-color: var(--accent-red);
        border-radius: 50%;
        box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.2);
        transition: all 0.3s ease;
        cursor: pointer;
    }

    .timeline-item.active .timeline-dot {
        transform: scale(1.5);
        box-shadow: 0 0 0 6px rgba(220, 38, 38, 0.3);
    }

    /* Hiệu ứng các vòng tròn */
    .timeline-circles {
        position: relative;
        width: 180px;
        height: 180px;
        display: flex;
        justify-content: center;
        align-items: center;
        opacity: 0;
        transform: scale(0.5);
        transition: all 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
        pointer-events: none;
    }

    .timeline-item.active .timeline-circles {
        opacity: 1;
        transform: scale(1);
    }

    .circle {
        position: absolute;
        border-radius: 50%;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
    }

    @keyframes spinDashed {
        0% { transform: translate(-50%, -50%) rotate(0deg); }
        100% { transform: translate(-50%, -50%) rotate(360deg); }
    }

    .circle-1 {
        width: 100%;
        height: 100%;
        border: 1px dashed rgba(220, 38, 38, 0.4);
        animation: spinDashed 15s linear infinite;
    }

    .circle-2 {
        width: 75%;
        height: 75%;
        border: 2px solid var(--accent-red);
    }

    .circle-3 {
        width: 60%;
        height: 60%;
        background-color: rgba(220, 38, 38, 0.05);
    }

    .timeline-node-title {
        position: relative;
        color: var(--accent-red);
        font-weight: 800;
        font-size: 1.1rem;
        text-align: center;
        line-height: 1.3;
        z-index: 2;
    }

    /* Nội dung chi tiết */
    .timeline-content {
        opacity: 0;
        transform: translateY(20px);
        transition: all 0.6s ease;
        pointer-events: none;
        max-width: 400px;
    }

    .timeline-item.active .timeline-content {
        opacity: 1;
        transform: translateY(0);
        pointer-events: auto;
    }

    .tl-event {
        margin-bottom: 20px;
    }

    .tl-event-year {
        font-weight: 800;
        font-size: 1.1rem;
        color: var(--blue-primary);
        margin-bottom: 5px;
    }

    .tl-event-text {
        font-size: 1rem;
        color: #475569;
        line-height: 1.6;
    }

    @media (max-width: 768px) {
        .timeline-line {
            left: 30px;
        }
        
        .timeline-item {
            flex-direction: column !important;
            align-items: flex-start;
            padding-left: 80px;
            margin-bottom: 60px;
        }

        .timeline-center {
            left: 30px;
            top: 0;
            flex-direction: row-reverse;
            width: auto;
            transform: none;
        }

        .timeline-year {
            margin-bottom: 0;
            margin-left: 15px;
            background: transparent;
        }

        .timeline-left, .timeline-right {
            width: 100%;
            justify-content: flex-start !important;
        }
        
        .timeline-left {
            margin-top: 30px;
            margin-bottom: 20px;
        }

        .timeline-circles {
            width: 140px;
            height: 140px;
        }

        .timeline-node-title {
            font-size: 0.9rem;
        }
    }

.stat-box p, .bento-card p, .art-card p, .prize-card p, .footer-col p, .hero-content-anim p, .text-center { text-align: center; }