/* roulang page: index */
:root {
            --bg-primary: #0F0C20;
            --bg-secondary: #0B1A30;
            --bg-card: #12102A;
            --accent-cyan: #00F0FF;
            --accent-lime: #CCFF00;
            --text-primary: #FFFFFF;
            --text-secondary: #A6ACAF;
            --border-neon: rgba(0,240,255,0.3);
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-neon: 0 0 15px rgba(0,240,255,0.5);
            --shadow-lime: 0 0 20px rgba(204,255,0,0.3);
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Be Vietnam Pro', 'Segoe UI', 'Roboto', sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }
        
        button:focus-visible, a:focus-visible, input:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
            border-radius: 4px;
        }
        
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        
        .text-gradient {
            background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-lime) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .btn-primary {
            background: linear-gradient(135deg, #00F0FF 0%, #0088CC 100%);
            color: #0F0C20;
            font-weight: 700;
            padding: 14px 32px;
            border-radius: 50px;
            box-shadow: var(--shadow-neon);
            transition: all var(--transition-smooth);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 0.5px;
        }
        
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 30px rgba(0,240,255,0.7);
            background: linear-gradient(135deg, #33F5FF 0%, #0099DD 100%);
        }
        
        .btn-primary:active {
            transform: translateY(0) scale(0.97);
        }
        
        .btn-secondary {
            background: transparent;
            color: var(--accent-cyan);
            font-weight: 600;
            padding: 13px 28px;
            border-radius: 50px;
            border: 2px solid var(--accent-cyan);
            transition: all var(--transition-smooth);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        
        .btn-secondary:hover {
            background: rgba(0,240,255,0.1);
            box-shadow: 0 0 20px rgba(0,240,255,0.3);
            transform: translateY(-2px);
        }
        
        .btn-lime {
            background: linear-gradient(135deg, #CCFF00 0%, #99CC00 100%);
            color: #0F0C20;
            font-weight: 700;
            padding: 14px 32px;
            border-radius: 50px;
            box-shadow: var(--shadow-lime);
            transition: all var(--transition-smooth);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        
        .btn-lime:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 30px rgba(204,255,0,0.5);
        }
        
        .card-neon {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-lg);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        
        .card-neon:hover {
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-neon);
            transform: translateY(-6px);
        }
        
        .badge-neon {
            background: rgba(0,240,255,0.15);
            color: var(--accent-cyan);
            border: 1px solid var(--accent-cyan);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 1px;
            text-transform: uppercase;
            display: inline-block;
        }
        
        .badge-lime {
            background: rgba(204,255,0,0.15);
            color: var(--accent-lime);
            border: 1px solid var(--accent-lime);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 1px;
            text-transform: uppercase;
            display: inline-block;
        }
        
        .section-title {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            font-weight: 800;
            letter-spacing: -0.5px;
            line-height: 1.2;
            margin-bottom: 16px;
        }
        
        .section-subtitle {
            font-size: clamp(1rem, 2vw, 1.15rem);
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 680px;
        }
        
        .divider-neon {
            width: 80px;
            height: 4px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-lime));
            border-radius: 2px;
            margin-bottom: 24px;
        }
        
        /* Navigation */
        .navbar {
            background: rgba(15, 12, 32, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0,240,255,0.15);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        
        .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            padding: 8px 18px;
            border-radius: 8px;
            transition: all var(--transition-fast);
            position: relative;
        }
        
        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(0,240,255,0.08);
        }
        
        .nav-link.active {
            color: var(--accent-cyan);
            font-weight: 700;
        }
        
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 18px;
            right: 18px;
            height: 2px;
            background: var(--accent-cyan);
            border-radius: 2px;
        }
        
        .mobile-menu {
            display: none;
        }
        
        /* Hero */
        .hero-section {
            position: relative;
            background: linear-gradient(135deg, #0F0C20 0%, #0B1A30 50%, #0F0C20 100%);
            min-height: 90vh;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
            opacity: 0.25;
            z-index: 0;
        }
        
        .hero-section::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(0,240,255,0.1) 0%, transparent 60%);
            z-index: 1;
        }
        
        .hero-content {
            position: relative;
            z-index: 2;
        }
        
        /* FAB */
        .fab-neon {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: rgba(0,0,0,0.6);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            background-origin: border-box;
            background-clip: padding-box, border-box;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0 15px rgba(0,240,255,0.5);
            cursor: pointer;
            transition: all var(--transition-smooth);
            opacity: 0.6;
            animation: fab-breathe 3s ease-in-out infinite;
        }
        
        .fab-neon i {
            color: var(--accent-cyan);
            font-size: 24px;
            transition: all var(--transition-smooth);
        }
        
        .fab-neon:hover {
            opacity: 1;
            box-shadow: 0 0 30px rgba(0,240,255,0.8);
            transform: scale(1.1);
        }
        
        .fab-neon:hover i {
            animation: fab-flicker 0.5s ease-in-out;
        }
        
        .fab-neon:active {
            transform: scale(0.95);
            border-color: #FF007F;
        }
        
        .fab-notification {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 16px;
            height: 16px;
            background: #FF007F;
            border-radius: 50%;
            animation: fab-notification-blink 1.5s ease-in-out infinite;
        }
        
        @keyframes fab-breathe {
            0%, 100% { opacity: 0.6; }
            50% { opacity: 0.85; }
        }
        
        @keyframes fab-flicker {
            0%, 100% { opacity: 1; }
            25% { opacity: 0.4; }
            50% { opacity: 1; }
            75% { opacity: 0.6; }
        }
        
        @keyframes fab-notification-blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        
        /* Responsive */
        @media (max-width: 1024px) {
            .container {
                padding: 0 20px;
            }
        }
        
        @media (max-width: 768px) {
            .mobile-menu {
                display: block;
            }
            .desktop-menu {
                display: none;
            }
            .hero-section {
                min-height: 70vh;
            }
        }
        
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero-section {
                min-height: 65vh;
            }
            .fab-neon {
                width: 50px;
                height: 50px;
                left: 12px;
                bottom: 80px;
            }
            .fab-neon i {
                font-size: 20px;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #0F0C20;
            --bg-secondary: #0B1A30;
            --accent-cyan: #00F0FF;
            --accent-lime: #CCFF00;
            --text-white: #FFFFFF;
            --text-silver: #A6ACAF;
            --border-glow: rgba(0, 240, 255, 0.2);
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.5);
            --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.5);
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            background-color: var(--bg-primary);
            color: var(--text-white);
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { text-decoration: none; color: inherit; transition: color .2s ease; }
        img { max-width: 100%; display: block; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        .bg-cyber { background-color: var(--bg-primary); }
        .text-silver { color: var(--text-silver); }
        .badge-neon {
            display: inline-block;
            padding: 6px 14px;
            border: 1px solid var(--border-glow);
            border-radius: 999px;
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.05);
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            color: #0F0C20;
            font-weight: 800;
            border-radius: 12px;
            padding: 14px 32px;
            transition: all .25s ease;
            box-shadow: 0 4px 20px rgba(0, 240, 255, 0.25);
            border: none;
            cursor: pointer;
            letter-spacing: 0.3px;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-neon);
        }
        .btn-primary:active { transform: translateY(0) scale(0.98); }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border-glow);
            color: var(--accent-cyan);
            font-weight: 700;
            border-radius: 12px;
            padding: 14px 28px;
            transition: all .25s ease;
            background: rgba(0, 240, 255, 0.05);
            cursor: pointer;
        }
        .btn-secondary:hover {
            background: rgba(0, 240, 255, 0.15);
            border-color: var(--accent-cyan);
        }
        .navbar {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(15, 12, 32, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-glow);
        }
        .nav-link {
            position: relative;
            padding: 8px 14px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-silver);
            transition: color .2s ease;
            white-space: nowrap;
        }
        .nav-link:hover { color: var(--accent-cyan); }
        .nav-link.active { color: var(--accent-cyan); }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--accent-cyan);
            border-radius: 2px;
            box-shadow: 0 0 8px var(--accent-cyan);
        }
        .article-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-lg);
            padding: 32px;
            backdrop-filter: blur(8px);
        }
        .article-content {
            font-size: 1.05rem;
            line-height: 1.75;
            color: #D1D5DB;
        }
        .article-content h2 {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-white);
            margin: 32px 0 16px;
            letter-spacing: -0.01em;
        }
        .article-content h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--accent-cyan);
            margin: 24px 0 12px;
        }
        .article-content p { margin-bottom: 16px; }
        .article-content ul, .article-content ol { margin: 16px 0 16px 24px; }
        .article-content li { margin-bottom: 8px; }
        .article-content strong { color: var(--accent-lime); font-weight: 700; }
        .article-content img {
            border-radius: var(--radius-md);
            margin: 24px 0;
        }
        .article-content blockquote {
            border-left: 4px solid var(--accent-cyan);
            padding-left: 20px;
            margin: 24px 0;
            font-style: italic;
            color: var(--text-silver);
            background: rgba(0, 240, 255, 0.03);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            padding: 16px 20px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            padding-bottom: 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            margin-bottom: 24px;
            font-size: 0.9rem;
            color: var(--text-silver);
        }
        .article-meta i { color: var(--accent-cyan); margin-right: 6px; }
        .fab-neon {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(8px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            background-origin: border-box;
            background-clip: padding-box, border-box;
            box-shadow: var(--shadow-neon);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            opacity: 0.6;
            transition: all .3s ease;
            animation: fabPulse 3s infinite;
        }
        .fab-neon:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.8);
        }
        .fab-neon i { color: var(--accent-cyan); font-size: 1.5rem; }
        @keyframes fabPulse {
            0%, 100% { box-shadow: 0 0 15px rgba(0, 240, 255, 0.5); }
            50% { box-shadow: 0 0 25px rgba(0, 240, 255, 0.9); }
        }
        @media (max-width: 768px) {
            .desktop-menu { display: none !important; }
            .article-card { padding: 20px; }
            .container { padding: 0 16px; }
        }
        @media (min-width: 769px) {
            .mobile-menu { display: none !important; }
        }
        @media (max-width: 520px) {
            .article-content { font-size: 0.98rem; }
            .article-content h2 { font-size: 1.4rem; }
            .article-content h3 { font-size: 1.15rem; }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0F0C20;
            --bg-secondary: #0B1A30;
            --accent-lime: #CCFF00;
            --accent-cyan: #00F0FF;
            --text-white: #FFFFFF;
            --text-silver: #A6ACAF;
            --border-neon: rgba(0, 240, 255, 0.25);
            --shadow-neon: 0 0 20px rgba(0, 240, 255, 0.15);
            --shadow-neon-hover: 0 0 40px rgba(204, 255, 0, 0.3);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --spacing-section: 5rem;
            --spacing-card: 1.5rem;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        
        /* Header & Navigation */
        .navbar {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(15, 12, 32, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-neon);
            transition: var(--transition-smooth);
        }
        
        .navbar.scrolled {
            background: rgba(15, 12, 32, 0.98);
            box-shadow: 0 4px 30px rgba(0, 240, 255, 0.08);
        }
        
        .nav-link {
            position: relative;
            color: var(--text-silver);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.5rem 1rem;
            border-radius: 6px;
            transition: var(--transition-fast);
            text-decoration: none;
        }
        
        .nav-link:hover {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.06);
        }
        
        .nav-link.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
            font-weight: 600;
        }
        
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-lime));
            border-radius: 2px;
            box-shadow: 0 0 12px rgba(0, 240, 255, 0.6);
        }
        
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #00F0FF 0%, #CCFF00 100%);
            color: #0F0C20;
            font-weight: 700;
            padding: 0.75rem 1.75rem;
            border-radius: 50px;
            text-decoration: none;
            transition: var(--transition-smooth);
            border: none;
            cursor: pointer;
            font-size: 1rem;
            box-shadow: 0 4px 20px rgba(0, 240, 255, 0.25);
        }
        
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(204, 255, 0, 0.4);
        }
        
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 12px rgba(0, 240, 255, 0.3);
        }
        
        .btn-primary:focus-visible {
            outline: 3px solid var(--accent-cyan);
            outline-offset: 2px;
        }
        
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: transparent;
            color: var(--accent-cyan);
            font-weight: 600;
            padding: 0.7rem 1.5rem;
            border-radius: 50px;
            text-decoration: none;
            transition: var(--transition-fast);
            border: 2px solid rgba(0, 240, 255, 0.4);
            cursor: pointer;
            font-size: 0.95rem;
        }
        
        .btn-outline:hover {
            border-color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
            box-shadow: var(--shadow-neon);
        }
        
        .btn-outline:focus-visible {
            outline: 3px solid var(--accent-cyan);
            outline-offset: 2px;
        }
        
        /* Badges */
        .badge-neon {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.35rem 0.9rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.8rem;
            background: rgba(0, 240, 255, 0.1);
            color: var(--accent-cyan);
            border: 1px solid rgba(0, 240, 255, 0.3);
            transition: var(--transition-fast);
        }
        
        .badge-lime {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.35rem 0.9rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.8rem;
            background: rgba(204, 255, 0, 0.1);
            color: var(--accent-lime);
            border: 1px solid rgba(204, 255, 0, 0.3);
        }
        
        /* Hero Section */
        .hero-section {
            position: relative;
            background: 
                radial-gradient(ellipse at 20% 50%, rgba(0, 240, 255, 0.08) 0%, transparent 50%),
                radial-gradient(ellipse at 80% 20%, rgba(204, 255, 0, 0.06) 0%, transparent 50%),
                linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
            border-bottom: 1px solid var(--border-neon);
            overflow: hidden;
            min-height: 80vh;
            display: flex;
            align-items: center;
        }
        
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: 
                linear-gradient(rgba(0, 240, 255, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(0, 240, 255, 0.03) 1px, transparent 1px);
            background-size: 60px 60px;
            pointer-events: none;
        }
        
        /* Icon Matrix */
        .icon-matrix {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(64px, 1fr));
            gap: 1rem;
            max-width: 420px;
        }
        
        .icon-cell {
            aspect-ratio: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(0, 240, 255, 0.06);
            border: 1px solid rgba(0, 240, 255, 0.2);
            border-radius: var(--radius-md);
            font-size: 1.75rem;
            color: var(--accent-cyan);
            transition: var(--transition-smooth);
            animation: floatIcon 4s ease-in-out infinite;
        }
        
        .icon-cell:nth-child(2) { animation-delay: 0.5s; }
        .icon-cell:nth-child(3) { animation-delay: 1s; }
        .icon-cell:nth-child(4) { animation-delay: 1.5s; }
        .icon-cell:nth-child(5) { animation-delay: 2s; }
        .icon-cell:nth-child(6) { animation-delay: 2.5s; }
        
        .icon-cell:hover {
            background: rgba(0, 240, 255, 0.15);
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-neon);
            transform: translateY(-4px);
        }
        
        @keyframes floatIcon {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }
        
        /* Status Bar */
        .status-bar {
            display: flex;
            align-items: center;
            gap: 1rem;
            flex-wrap: wrap;
            padding: 0.9rem 1.25rem;
            background: rgba(0, 240, 255, 0.06);
            border: 1px solid rgba(0, 240, 255, 0.2);
            border-radius: var(--radius-md);
            backdrop-filter: blur(8px);
        }
        
        .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-lime);
            box-shadow: 0 0 12px rgba(204, 255, 0, 0.8);
            animation: pulseDot 1.5s ease-in-out infinite;
        }
        
        @keyframes pulseDot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        
        /* Game Cards */
        .game-card {
            position: relative;
            background: linear-gradient(160deg, rgba(0, 240, 255, 0.06) 0%, rgba(15, 12, 32, 0.9) 100%);
            border: 1px solid rgba(0, 240, 255, 0.2);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition-smooth);
            cursor: pointer;
            text-decoration: none;
            display: block;
        }
        
        .game-card:hover {
            transform: translateY(-6px) scale(1.02);
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-neon-hover);
        }
        
        .game-card:focus-visible {
            outline: 3px solid var(--accent-cyan);
            outline-offset: 3px;
        }
        
        .game-card-image {
            width: 100%;
            height: 220px;
            object-fit: cover;
            display: block;
            transition: var(--transition-smooth);
        }
        
        .game-card:hover .game-card-image {
            transform: scale(1.06);
        }
        
        .game-card-body {
            padding: 1.25rem;
        }
        
        /* Feature Blocks */
        .feature-block {
            position: relative;
            padding: 2rem;
            background: rgba(0, 240, 255, 0.04);
            border: 1px solid rgba(0, 240, 255, 0.15);
            border-radius: var(--radius-lg);
            transition: var(--transition-smooth);
            text-align: left;
        }
        
        .feature-block:hover {
            background: rgba(0, 240, 255, 0.08);
            border-color: rgba(0, 240, 255, 0.35);
            box-shadow: var(--shadow-neon);
            transform: translateY(-4px);
        }
        
        .feature-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.15), rgba(204, 255, 0, 0.15));
            border: 1px solid rgba(0, 240, 255, 0.3);
            font-size: 1.4rem;
            color: var(--accent-cyan);
            margin-bottom: 1.25rem;
        }
        
        /* Timeline */
        .timeline-item {
            position: relative;
            padding-left: 2.5rem;
            padding-bottom: 2rem;
            border-left: 2px solid rgba(0, 240, 255, 0.25);
            transition: var(--transition-fast);
        }
        
        .timeline-item:last-child {
            border-left-color: transparent;
            padding-bottom: 0;
        }
        
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -8px;
            top: 0;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--bg-primary);
            border: 3px solid var(--accent-cyan);
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
            transition: var(--transition-fast);
        }
        
        .timeline-item:hover::before {
            border-color: var(--accent-lime);
            box-shadow: 0 0 25px rgba(204, 255, 0, 0.7);
        }
        
        /* FAQ */
        .faq-item {
            border: 1px solid rgba(0, 240, 255, 0.2);
            border-radius: var(--radius-md);
            margin-bottom: 1rem;
            background: rgba(0, 240, 255, 0.04);
            overflow: hidden;
            transition: var(--transition-fast);
        }
        
        .faq-item:hover {
            border-color: rgba(0, 240, 255, 0.4);
        }
        
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.25rem 1.5rem;
            background: transparent;
            border: none;
            color: var(--text-white);
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            text-align: left;
            transition: var(--transition-fast);
        }
        
        .faq-question:hover {
            color: var(--accent-cyan);
        }
        
        .faq-question:focus-visible {
            outline: 3px solid var(--accent-cyan);
            outline-offset: -3px;
            border-radius: var(--radius-md);
        }
        
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            color: var(--text-silver);
            padding: 0 1.5rem;
        }
        
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-bottom: 1.25rem;
        }
        
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--accent-cyan);
        }
        
        .faq-question i {
            transition: var(--transition-fast);
            color: var(--text-silver);
        }
        
        /* FAB */
        .fab {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 90;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(15, 12, 32, 0.85);
            backdrop-filter: blur(12px);
            border: 2px solid;
            border-image: linear-gradient(135deg, #CCFF00, #00F0FF) 1;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition-smooth);
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.4);
            animation: breatheFab 3s ease-in-out infinite;
        }
        
        .fab i {
            font-size: 1.4rem;
            color: var(--accent-cyan);
            transition: var(--transition-fast);
        }
        
        .fab:hover {
            transform: scale(1.15);
            box-shadow: 0 0 40px rgba(204, 255, 0, 0.6);
            opacity: 1;
        }
        
        .fab:hover i {
            animation: spinIcon 0.6s ease-in-out;
        }
        
        .fab:active {
            transform: scale(0.95);
        }
        
        .fab:focus-visible {
            outline: 3px solid var(--accent-cyan);
            outline-offset: 3px;
        }
        
        .fab-notification {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: #FF007F;
            border: 2px solid var(--bg-primary);
            animation: pulseDot 1.5s ease-in-out infinite;
        }
        
        @keyframes breatheFab {
            0%, 100% { opacity: 0.65; transform: scale(1); }
            50% { opacity: 0.9; transform: scale(1.05); }
        }
        
        @keyframes spinIcon {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }
        
        /* Footer */
        footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-neon);
        }
        
        footer a {
            color: var(--text-silver);
            text-decoration: none;
            transition: var(--transition-fast);
        }
        
        footer a:hover {
            color: var(--accent-cyan);
        }
        
        /* Section spacing */
        .section {
            padding: var(--spacing-section) 0;
        }
        
        .section-alt {
            background: var(--bg-secondary);
        }
        
        /* Typography */
        h1 {
            font-size: 2.75rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, #FFFFFF 30%, #CCFF00 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        h2 {
            font-size: 2rem;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.01em;
            color: var(--text-white);
        }
        
        h3 {
            font-size: 1.35rem;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-white);
        }
        
        .text-silver {
            color: var(--text-silver);
        }
        
        .text-cyan-custom {
            color: var(--accent-cyan);
        }
        
        .text-lime-custom {
            color: var(--accent-lime);
        }
        
        /* Responsive */
        @media (max-width: 1024px) {
            h1 { font-size: 2.25rem; }
            h2 { font-size: 1.75rem; }
            .section { padding: 3.5rem 0; }
        }
        
        @media (max-width: 768px) {
            h1 { font-size: 1.85rem; }
            h2 { font-size: 1.5rem; }
            h3 { font-size: 1.2rem; }
            
            .desktop-menu { display: none !important; }
            .mobile-menu { display: block; }
            
            .game-card-image { height: 180px; }
            
            .icon-matrix { grid-template-columns: repeat(3, 1fr); }
            
            .fab { bottom: 5rem; width: 50px; height: 50px; }
            .fab i { font-size: 1.2rem; }
        }
        
        @media (min-width: 769px) {
            .mobile-menu { display: none !important; }
        }
        
        @media (max-width: 520px) {
            .container { padding: 0 1rem; }
            h1 { font-size: 1.6rem; }
            h2 { font-size: 1.3rem; }
            .btn-primary { padding: 0.65rem 1.4rem; font-size: 0.9rem; }
            .btn-outline { padding: 0.6rem 1.2rem; font-size: 0.85rem; }
            .game-card-image { height: 160px; }
            .status-bar { flex-direction: column; align-items: flex-start; }
        }

/* roulang page: category2 */
:root {
            --cyber-bg: #0F0C20;
            --ocean-deep: #0B1A30;
            --lime: #CCFF00;
            --cyan: #00F0FF;
            --white: #FFFFFF;
            --silver: #A6ACAF;
            --dark-card: #12102A;
            --border-neon: rgba(0, 240, 255, 0.2);
            --glow-cyan: 0 0 15px rgba(0, 240, 255, 0.5);
            --glow-lime: 0 0 15px rgba(204, 255, 0, 0.4);
            --radius: 16px;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background-color: var(--cyber-bg);
            color: var(--white);
            line-height: 1.6;
            overflow-x: hidden;
            background-image: radial-gradient(circle at 15% 20%, rgba(0, 240, 255, 0.04) 0%, transparent 50%), radial-gradient(circle at 85% 70%, rgba(204, 255, 0, 0.03) 0%, transparent 50%);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Navigation */
        .navbar {
            background: rgba(15, 12, 32, 0.92);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-neon);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: var(--transition);
        }

        .navbar:hover {
            border-bottom-color: rgba(0, 240, 255, 0.4);
        }

        .nav-link {
            color: var(--silver);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 16px;
            border-radius: 999px;
            transition: var(--transition);
            text-decoration: none;
            position: relative;
        }

        .nav-link:hover {
            color: var(--white);
            background: rgba(0, 240, 255, 0.08);
        }

        .nav-link.active {
            color: var(--cyan);
            background: rgba(0, 240, 255, 0.12);
            border: 1px solid rgba(0, 240, 255, 0.3);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--cyan);
            border-radius: 2px;
            box-shadow: var(--glow-cyan);
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--cyan) 0%, var(--lime) 100%);
            color: #0F0C20;
            font-weight: 700;
            padding: 12px 28px;
            border-radius: 999px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 1rem;
            position: relative;
            overflow: hidden;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(0, 240, 255, 0.35);
        }

        .btn-primary:active {
            transform: translateY(0) scale(0.98);
        }

        .btn-outline {
            background: transparent;
            color: var(--cyan);
            border: 2px solid var(--cyan);
            font-weight: 600;
            padding: 10px 24px;
            border-radius: 999px;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 1rem;
        }

        .btn-outline:hover {
            background: rgba(0, 240, 255, 0.1);
            box-shadow: var(--glow-cyan);
            transform: translateY(-2px);
        }

        /* Hero */
        .hero {
            background: linear-gradient(160deg, #0F0C20 0%, #0B1A30 50%, #0F0C20 100%);
            position: relative;
            overflow: hidden;
            min-height: 560px;
            display: flex;
            align-items: center;
            border-bottom: 1px solid var(--border-neon);
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
            z-index: 0;
        }

        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 12, 32, 0.95) 0%, rgba(11, 26, 48, 0.8) 50%, rgba(15, 12, 32, 0.95) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            padding: 80px 0;
        }

        .badge-neon {
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid rgba(0, 240, 255, 0.4);
            color: var(--cyan);
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            text-transform: uppercase;
        }

        .badge-hot {
            background: rgba(255, 0, 0, 0.15);
            border: 1px solid rgba(255, 0, 0, 0.5);
            color: #FF6B6B;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            animation: pulse-badge 1.5s ease-in-out infinite;
        }

        @keyframes pulse-badge {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.6; }
        }

        /* Event Cards */
        .event-card {
            background: linear-gradient(145deg, #12102A 0%, #1A1835 100%);
            border: 1px solid var(--border-neon);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
            position: relative;
        }

        .event-card:hover {
            transform: translateY(-6px);
            border-color: rgba(0, 240, 255, 0.6);
            box-shadow: 0 12px 40px rgba(0, 240, 255, 0.15);
        }

        .event-card .card-image {
            height: 200px;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .event-card .card-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(18, 16, 42, 0.9) 0%, transparent 50%);
        }

        .event-card .card-body {
            padding: 24px;
        }

        .event-card .card-title {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--white);
        }

        .event-card .card-desc {
            color: var(--silver);
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .tag-lime {
            background: rgba(204, 255, 0, 0.15);
            color: var(--lime);
            border: 1px solid rgba(204, 255, 0, 0.4);
        }

        .tag-cyan {
            background: rgba(0, 240, 255, 0.15);
            color: var(--cyan);
            border: 1px solid rgba(0, 240, 255, 0.4);
        }

        .tag-red {
            background: rgba(255, 0, 0, 0.15);
            color: #FF6B6B;
            border: 1px solid rgba(255, 0, 0, 0.4);
        }

        .tag-gold {
            background: rgba(255, 215, 0, 0.15);
            color: #FFD700;
            border: 1px solid rgba(255, 215, 0, 0.4);
        }

        /* Progress Bar */
        .progress-bar {
            height: 8px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 999px;
            overflow: hidden;
        }

        .progress-bar .fill {
            height: 100%;
            background: linear-gradient(90deg, var(--cyan) 0%, var(--lime) 100%);
            border-radius: 999px;
            transition: width 0.8s ease;
        }

        /* Countdown */
        .countdown-box {
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid rgba(0, 240, 255, 0.3);
            border-radius: 12px;
            padding: 16px;
            text-align: center;
            min-width: 80px;
        }

        .countdown-box .number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--cyan);
            line-height: 1;
        }

        .countdown-box .label {
            font-size: 0.75rem;
            color: var(--silver);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-top: 4px;
        }

        /* FAQ */
        .faq-item {
            background: rgba(18, 16, 42, 0.6);
            border: 1px solid var(--border-neon);
            border-radius: 12px;
            padding: 20px 24px;
            margin-bottom: 16px;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(0, 240, 255, 0.4);
            background: rgba(18, 16, 42, 0.9);
        }

        .faq-item h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--white);
        }

        .faq-item p {
            color: var(--silver);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        /* Footer */
        footer {
            background: #0A0818;
            border-top: 1px solid var(--border-neon);
            padding: 60px 0 30px;
        }

        footer a {
            color: var(--silver);
            text-decoration: none;
            transition: var(--transition);
        }

        footer a:hover {
            color: var(--cyan);
        }

        /* FAB */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(10px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), linear-gradient(135deg, var(--lime), var(--cyan));
            background-origin: border-box;
            background-clip: padding-box, border-box;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            opacity: 0.65;
            animation: fab-breathe 3s ease-in-out infinite;
        }

        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.5);
        }

        .fab:active {
            transform: scale(0.95);
        }

        .fab i {
            color: var(--cyan);
            font-size: 1.5rem;
        }

        @keyframes fab-breathe {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }

        /* Responsive */
        .desktop-menu {
            display: flex;
        }

        .mobile-menu {
            display: none;
        }

        @media (max-width: 1024px) {
            .container {
                padding: 0 20px;
            }

            .hero {
                min-height: 480px;
            }

            .hero-content {
                padding: 60px 0;
            }
        }

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

            .mobile-menu {
                display: block;
            }

            .hero {
                min-height: 420px;
            }

            .hero-content {
                padding: 40px 0;
            }

            .event-card .card-image {
                height: 160px;
            }

            .countdown-box {
                min-width: 60px;
                padding: 12px;
            }

            .countdown-box .number {
                font-size: 1.5rem;
            }

            footer .grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .hero {
                min-height: 380px;
            }

            .hero h1 {
                font-size: 2rem;
            }

            .btn-primary, .btn-outline {
                padding: 10px 20px;
                font-size: 0.9rem;
            }

            .event-card .card-image {
                height: 140px;
            }

            .fab {
                left: 12px;
                bottom: 80px;
                width: 48px;
                height: 48px;
            }

            .fab i {
                font-size: 1.2rem;
            }
        }

        /* Section spacing */
        .section {
            padding: 80px 0;
        }

        .section-alt {
            background: rgba(11, 26, 48, 0.5);
            border-top: 1px solid var(--border-neon);
            border-bottom: 1px solid var(--border-neon);
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--white);
            letter-spacing: -0.02em;
        }

        .section-subtitle {
            color: var(--silver);
            font-size: 1.1rem;
            max-width: 700px;
            line-height: 1.7;
        }

        .text-gradient {
            background: linear-gradient(135deg, var(--cyan) 0%, var(--lime) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.08) 0%, rgba(204, 255, 0, 0.05) 100%);
            border: 1px solid var(--border-neon);
            border-radius: 24px;
            padding: 60px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.1;
            z-index: 0;
        }

        .cta-section > * {
            position: relative;
            z-index: 1;
        }

/* roulang page: category3 */
:root {
            --cyber: #0F0C20;
            --ocean: #0B1A30;
            --lime: #CCFF00;
            --cyan: #00F0FF;
            --silver: #A6ACAF;
            --white: #FFFFFF;
            --dark-card: #12102A;
            --border-neon: rgba(0, 240, 255, 0.35);
            --border-neon-strong: rgba(0, 240, 255, 0.7);
            --border-lime: rgba(204, 255, 0, 0.4);
            --radius-md: 0.75rem;
            --radius-lg: 1.25rem;
            --radius-xl: 1.75rem;
            --shadow-neon-cyan: 0 0 15px rgba(0, 240, 255, 0.5);
            --shadow-neon-lime: 0 0 15px rgba(204, 255, 0, 0.5);
            --shadow-card: 0 0 20px rgba(0, 240, 255, 0.25);
            --shadow-card-hover: 0 0 35px rgba(0, 240, 255, 0.55);
            --transition-fast: 0.2s ease;
            --transition-med: 0.35s ease;
        }

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

        body {
            font-family: 'Be Vietnam Pro', 'Segoe UI', 'Roboto', Arial, sans-serif;
            background: var(--cyber);
            color: var(--white);
            line-height: 1.6;
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button, .btn-primary, .btn-outline {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-med);
        }

        button:focus-visible, a:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        /* Navbar */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 50;
            background: rgba(15, 12, 32, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.15);
        }

        .nav-link {
            padding: 0.6rem 1.1rem;
            border-radius: 0.5rem;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--silver);
            transition: all var(--transition-fast);
            position: relative;
        }

        .nav-link:hover {
            color: var(--white);
            background: rgba(0, 240, 255, 0.1);
        }

        .nav-link.active {
            color: var(--lime);
            background: rgba(204, 255, 0, 0.08);
            border: 1px solid rgba(204, 255, 0, 0.3);
        }

        .btn-primary {
            background: linear-gradient(135deg, #CCFF00 0%, #00F0FF 100%);
            color: #0F0C20;
            font-weight: 800;
            padding: 0.8rem 1.8rem;
            border-radius: 0.6rem;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 35px rgba(0, 240, 255, 0.55);
            background: linear-gradient(135deg, #D4FF33 0%, #33F5FF 100%);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.4);
        }

        .btn-outline {
            background: transparent;
            border: 1.5px solid var(--border-neon-strong);
            color: var(--cyan);
            font-weight: 700;
            padding: 0.8rem 1.8rem;
            border-radius: 0.6rem;
            font-size: 0.95rem;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn-outline:hover {
            background: rgba(0, 240, 255, 0.1);
            border-color: var(--cyan);
            box-shadow: var(--shadow-neon-cyan);
            transform: translateY(-2px);
        }

        .badge-neon {
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid rgba(0, 240, 255, 0.4);
            color: var(--cyan);
            padding: 0.35rem 0.8rem;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.8rem;
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
        }

        .badge-lime {
            background: rgba(204, 255, 0, 0.1);
            border: 1px solid rgba(204, 255, 0, 0.4);
            color: var(--lime);
            padding: 0.35rem 0.8rem;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.8rem;
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
        }

        .mobile-menu {
            display: none;
        }

        /* Hero */
        .hero-section {
            padding-top: 7rem;
            padding-bottom: 4rem;
            background: radial-gradient(ellipse at 30% 20%, rgba(0, 240, 255, 0.08) 0%, transparent 60%),
                        radial-gradient(ellipse at 70% 40%, rgba(204, 255, 0, 0.05) 0%, transparent 50%),
                        var(--cyber);
            border-bottom: 1px solid rgba(0, 240, 255, 0.1);
        }

        .countdown-bar {
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid rgba(0, 240, 255, 0.3);
            border-radius: var(--radius-lg);
            padding: 1rem 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
            margin-bottom: 3rem;
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.1);
        }

        .countdown-item {
            background: var(--dark-card);
            border: 1px solid rgba(0, 240, 255, 0.4);
            border-radius: 0.5rem;
            padding: 0.5rem 0.9rem;
            text-align: center;
            min-width: 60px;
        }

        .countdown-number {
            font-size: 1.8rem;
            font-weight: 900;
            color: var(--lime);
            line-height: 1.2;
        }

        .countdown-label {
            font-size: 0.7rem;
            color: var(--silver);
            text-transform: uppercase;
            letter-spacing: 0.08em;
        }

        /* Cards */
        .event-card {
            background: var(--dark-card);
            border: 1px solid rgba(0, 240, 255, 0.25);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            transition: all var(--transition-med);
            position: relative;
            overflow: hidden;
        }

        .event-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, #CCFF00, #00F0FF);
            opacity: 0;
            transition: opacity var(--transition-med);
        }

        .event-card:hover {
            border-color: rgba(0, 240, 255, 0.6);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-5px);
        }

        .event-card:hover::before {
            opacity: 1;
        }

        .event-card-featured {
            border: 1.5px solid rgba(204, 255, 0, 0.6);
            box-shadow: 0 0 25px rgba(204, 255, 0, 0.2);
        }

        .event-card-featured::before {
            background: linear-gradient(90deg, #CCFF00, #FFD700, #CCFF00);
            opacity: 1;
            height: 4px;
        }

        .tag-hot {
            background: linear-gradient(135deg, #FF4500, #FF0000);
            color: white;
            padding: 0.25rem 0.7rem;
            border-radius: 999px;
            font-size: 0.7rem;
            font-weight: 800;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            position: absolute;
            top: 1rem;
            right: 1rem;
            box-shadow: 0 0 15px rgba(255, 69, 0, 0.5);
        }

        .tag-new {
            background: linear-gradient(135deg, #CCFF00, #00F0FF);
            color: #0F0C20;
            padding: 0.25rem 0.7rem;
            border-radius: 999px;
            font-size: 0.7rem;
            font-weight: 800;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            position: absolute;
            top: 1rem;
            right: 1rem;
        }

        /* FAQ */
        .faq-item {
            border: 1px solid rgba(0, 240, 255, 0.2);
            border-radius: var(--radius-md);
            background: var(--dark-card);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: rgba(0, 240, 255, 0.4);
        }

        .faq-question {
            padding: 1.2rem 1.5rem;
            cursor: pointer;
            font-weight: 700;
            font-size: 1rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            color: var(--white);
            user-select: none;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-med), padding var(--transition-med);
            padding: 0 1.5rem;
            color: var(--silver);
            line-height: 1.7;
        }

        .faq-item.active .faq-answer {
            max-height: 500px;
            padding: 0 1.5rem 1.2rem 1.5rem;
        }

        .faq-item.active .faq-icon {
            transform: rotate(180deg);
            color: var(--lime);
        }

        .faq-icon {
            transition: transform var(--transition-fast), color var(--transition-fast);
            color: var(--cyan);
            flex-shrink: 0;
        }

        /* FAB */
        .fab-left {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 999px;
            background: rgba(15, 12, 32, 0.7);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(15, 12, 32, 0.7), rgba(15, 12, 32, 0.7)), 
                              linear-gradient(135deg, #CCFF00, #00F0FF);
            background-origin: border-box;
            background-clip: padding-box, border-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--cyan);
            font-size: 1.5rem;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
            cursor: pointer;
            transition: all var(--transition-med);
            opacity: 0.65;
            animation: fab-breathe 3s ease-in-out infinite;
        }

        .fab-left:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.7);
            color: var(--lime);
        }

        .fab-left:active {
            transform: scale(0.95);
        }

        @keyframes fab-breathe {
            0%, 100% { opacity: 0.6; }
            50% { opacity: 0.85; }
        }

        .fab-notification {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 14px;
            height: 14px;
            background: #FF4500;
            border-radius: 50%;
            border: 2px solid var(--cyber);
            animation: blink-notification 1.5s ease-in-out infinite;
        }

        @keyframes blink-notification {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(0.8); }
        }

        /* Grid pattern */
        .grid-pattern {
            background-image: radial-gradient(rgba(0, 240, 255, 0.08) 1px, transparent 1px);
            background-size: 24px 24px;
        }

        /* Section titles */
        .section-title {
            font-size: 2rem;
            font-weight: 900;
            line-height: 1.3;
            letter-spacing: -0.01em;
            margin-bottom: 0.75rem;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--silver);
            line-height: 1.7;
            max-width: 700px;
        }

        /* Footer */
        footer {
            background: var(--cyber);
            border-top: 1px solid rgba(0, 240, 255, 0.2);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .desktop-menu {
                display: none;
            }
            .mobile-menu {
                display: block;
            }
            .section-title {
                font-size: 1.6rem;
            }
        }

        @media (min-width: 1025px) {
            .mobile-menu {
                display: none !important;
            }
        }

        @media (max-width: 768px) {
            .hero-section {
                padding-top: 6rem;
                padding-bottom: 3rem;
            }
            .countdown-number {
                font-size: 1.4rem;
            }
            .countdown-item {
                min-width: 50px;
                padding: 0.4rem 0.6rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .event-card {
                padding: 1.2rem;
            }
            .fab-left {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
                bottom: 5rem;
                left: 0.75rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .hero-section {
                padding-top: 5.5rem;
            }
            .countdown-bar {
                padding: 0.8rem 1rem;
                gap: 0.5rem;
            }
            .countdown-number {
                font-size: 1.2rem;
            }
            .countdown-item {
                min-width: 42px;
                padding: 0.3rem 0.5rem;
            }
            .section-title {
                font-size: 1.25rem;
            }
            .btn-primary, .btn-outline {
                padding: 0.7rem 1.3rem;
                font-size: 0.85rem;
            }
        }