/* roulang page: index */
:root {
            --bg-deep: #0B0B0B;
            --bg-charcoal: #161616;
            --bg-panel: #1C1C1E;
            --accent-lava: #FF4500;
            --accent-fire: #FF0000;
            --accent-gold: #FFBF00;
            --accent-cyan: #00F0FF;
            --text-white: #FFFFFF;
            --text-warm: #CCCCCC;
            --text-muted: #999999;
            --border-dark: #2A2A2A;
            --border-lava: rgba(255, 69, 0, 0.5);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --shadow-lava: 0 0 18px rgba(255, 69, 0, 0.25);
            --shadow-panel: 0 8px 28px rgba(0, 0, 0, 0.6);
            --font-main: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            --transition: all 0.25s ease;
        }

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

        body {
            background: var(--bg-deep);
            color: var(--text-white);
            font-family: var(--font-main);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        a {
            color: var(--accent-gold);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover {
            color: var(--accent-lava);
        }

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

        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
        }

        button:focus-visible, a:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 3px;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== HEADER ===== */
        .site-header {
            background: rgba(11, 11, 11, 0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-dark);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 20px;
            flex-wrap: wrap;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--text-white);
            white-space: nowrap;
        }

        .logo span {
            color: var(--accent-lava);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 26px;
            list-style: none;
            flex-wrap: wrap;
        }

        .nav-links a {
            color: var(--text-warm);
            font-weight: 600;
            font-size: 0.95rem;
            position: relative;
            padding: 6px 0;
        }

        .nav-links a:hover,
        .nav-links a.active {
            color: var(--accent-gold);
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--accent-lava);
            border-radius: 2px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .btn-login {
            color: var(--text-warm);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 8px 16px;
            border-radius: 20px;
            transition: var(--transition);
        }

        .btn-login:hover {
            color: var(--accent-gold);
            background: rgba(255, 255, 255, 0.05);
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--accent-lava), var(--accent-fire));
            color: var(--text-white);
            font-weight: 700;
            font-size: 0.9rem;
            padding: 10px 22px;
            border-radius: 24px;
            box-shadow: var(--shadow-lava);
            transition: var(--transition);
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(255, 69, 0, 0.45);
            color: var(--text-white);
        }

        .btn-signup:active {
            transform: translateY(0);
        }

        /* Mobile Menu Toggle */
        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 4px;
        }

        .mobile-toggle span {
            width: 26px;
            height: 3px;
            background: var(--text-white);
            border-radius: 2px;
            transition: var(--transition);
        }

        /* ===== HERO ===== */
        .hero-section {
            position: relative;
            background: linear-gradient(135deg, #0B0B0B 0%, #1A0F0F 50%, #0B0B0B 100%);
            border-bottom: 1px solid var(--border-dark);
            padding: 48px 0 56px;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255, 69, 0, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -5%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 191, 0, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(255, 69, 0, 0.15);
            border: 1px solid var(--border-lava);
            color: var(--accent-lava);
            font-size: 0.85rem;
            font-weight: 700;
            padding: 6px 14px;
            border-radius: 20px;
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }

        .hero-title {
            font-size: 2.6rem;
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            color: var(--text-white);
        }

        .hero-title span {
            color: var(--accent-lava);
        }

        .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-warm);
            margin-bottom: 28px;
            max-width: 600px;
            line-height: 1.6;
        }

        .hero-cta-group {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent-lava), var(--accent-fire));
            color: var(--text-white);
            font-weight: 700;
            font-size: 1rem;
            padding: 14px 28px;
            border-radius: 28px;
            box-shadow: 0 4px 20px rgba(255, 69, 0, 0.4);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(255, 69, 0, 0.55);
            color: var(--text-white);
        }

        .btn-outline {
            background: transparent;
            border: 2px solid var(--accent-gold);
            color: var(--accent-gold);
            font-weight: 700;
            font-size: 1rem;
            padding: 12px 26px;
            border-radius: 28px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-outline:hover {
            background: var(--accent-gold);
            color: var(--bg-deep);
            transform: translateY(-2px);
        }

        .hero-stats {
            display: flex;
            gap: 30px;
            flex-wrap: wrap;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
        }

        .hero-stat-value {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent-gold);
        }

        .hero-stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .hero-visual {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-panel);
            border: 1px solid var(--border-dark);
        }

        .hero-visual img {
            width: 100%;
            height: 380px;
            object-fit: cover;
        }

        .hero-visual-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 20px;
            background: linear-gradient(transparent, rgba(11, 11, 11, 0.95));
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
        }

        .hero-visual-tag {
            background: var(--accent-lava);
            color: var(--text-white);
            font-size: 0.8rem;
            font-weight: 700;
            padding: 5px 12px;
            border-radius: 14px;
        }

        /* ===== SECTION COMMON ===== */
        .section {
            padding: 60px 0;
            border-bottom: 1px solid var(--border-dark);
        }

        .section-alt {
            background: var(--bg-charcoal);
        }

        .section-header {
            margin-bottom: 36px;
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }

        .section-title {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.3px;
            line-height: 1.2;
            color: var(--text-white);
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-warm);
            max-width: 600px;
            line-height: 1.6;
        }

        /* ===== ENTRY MATRIX ===== */
        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .matrix-card {
            background: var(--bg-panel);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: var(--transition);
            display: block;
            text-decoration: none;
            color: var(--text-white);
        }

        .matrix-card:hover {
            border-color: var(--border-lava);
            box-shadow: var(--shadow-lava);
            transform: translateY(-4px);
            color: var(--text-white);
        }

        .matrix-icon {
            font-size: 2rem;
            color: var(--accent-lava);
            margin-bottom: 14px;
        }

        .matrix-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .matrix-card p {
            font-size: 0.9rem;
            color: var(--text-warm);
            line-height: 1.5;
        }

        /* ===== TIMELINE ===== */
        .timeline {
            display: grid;
            grid-template-columns: 1fr;
            gap: 0;
            position: relative;
            padding-left: 30px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 10px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(var(--accent-lava), var(--accent-gold));
            border-radius: 2px;
        }

        .timeline-item {
            position: relative;
            padding: 0 0 28px 20px;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -25px;
            top: 8px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--accent-lava);
            border: 3px solid var(--bg-deep);
            box-shadow: 0 0 10px rgba(255, 69, 0, 0.5);
        }

        .timeline-item h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--accent-gold);
        }

        .timeline-item p {
            font-size: 0.95rem;
            color: var(--text-warm);
            line-height: 1.6;
        }

        /* ===== NEWS LIST ===== */
        .news-grid {
            display: grid;
            grid-template-columns: 1fr 0.7fr;
            gap: 30px;
            align-items: start;
        }

        .news-main-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-item {
            padding: 18px 0;
            border-bottom: 1px solid var(--border-dark);
            display: flex;
            gap: 18px;
            align-items: flex-start;
        }

        .news-item:last-child {
            border-bottom: none;
        }

        .news-item-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            white-space: nowrap;
            padding-top: 3px;
            min-width: 80px;
        }

        .news-item-content a {
            color: var(--text-white);
            font-weight: 600;
            font-size: 1rem;
            line-height: 1.4;
            display: block;
            margin-bottom: 6px;
        }

        .news-item-content a:hover {
            color: var(--accent-gold);
        }

        .news-item-content p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .news-sidebar {
            background: var(--bg-panel);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            padding: 24px;
        }

        .news-sidebar h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--accent-gold);
        }

        .news-sidebar ul {
            list-style: none;
        }

        .news-sidebar li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-dark);
            font-size: 0.9rem;
        }

        .news-sidebar li:last-child {
            border-bottom: none;
        }

        .news-sidebar a {
            color: var(--text-warm);
        }

        .news-sidebar a:hover {
            color: var(--accent-lava);
        }

        /* ===== FEATURE CARDS ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }

        .feature-card {
            background: var(--bg-panel);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            padding: 28px;
            transition: var(--transition);
        }

        .feature-card:hover {
            border-color: var(--border-lava);
            box-shadow: var(--shadow-panel);
            transform: translateY(-4px);
        }

        .feature-card-icon {
            font-size: 2rem;
            color: var(--accent-lava);
            margin-bottom: 16px;
        }

        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .feature-card p {
            font-size: 0.95rem;
            color: var(--text-warm);
            line-height: 1.6;
        }

        /* ===== TRUST BADGES ===== */
        .trust-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .trust-item {
            background: rgba(255, 69, 0, 0.08);
            border: 1px solid var(--border-lava);
            border-radius: var(--radius-sm);
            padding: 18px;
            text-align: left;
            transition: var(--transition);
        }

        .trust-item:hover {
            background: rgba(255, 69, 0, 0.15);
        }

        .trust-item strong {
            display: block;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--accent-gold);
        }

        .trust-item span {
            font-size: 0.85rem;
            color: var(--text-warm);
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
        }

        .faq-item {
            background: var(--bg-panel);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--border-lava);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 22px;
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            background: none;
            border: none;
        }

        .faq-question::after {
            content: '+';
            font-size: 1.5rem;
            color: var(--accent-lava);
            transition: var(--transition);
        }

        .faq-item.open .faq-question::after {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            padding: 0 22px;
            color: var(--text-warm);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding-bottom: 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-charcoal) 0%, #1A0A0A 50%, var(--bg-deep) 100%);
            padding: 70px 0;
            border-bottom: 1px solid var(--border-dark);
            text-align: center;
        }

        .cta-title {
            font-size: 2rem;
            font-weight: 900;
            letter-spacing: -0.5px;
            margin-bottom: 14px;
        }

        .cta-desc {
            font-size: 1.05rem;
            color: var(--text-warm);
            max-width: 600px;
            margin: 0 auto 28px;
            line-height: 1.6;
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border-dark);
            padding: 40px 0 24px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 30px;
        }

        .footer-brand .logo {
            font-size: 1.3rem;
            margin-bottom: 10px;
            display: inline-block;
        }

        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-muted);
            max-width: 350px;
            line-height: 1.6;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--accent-gold);
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col li {
            margin-bottom: 8px;
        }

        .footer-col a {
            color: var(--text-warm);
            font-size: 0.9rem;
        }

        .footer-col a:hover {
            color: var(--accent-lava);
        }

        .footer-bottom {
            border-top: 1px solid var(--border-dark);
            padding-top: 20px;
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--text-muted);
        }

        .footer-bottom a:hover {
            color: var(--accent-gold);
        }

        /* ===== FAB ===== */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 900;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-lava), var(--accent-fire));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-white);
            font-size: 1.5rem;
            box-shadow: 0 0 20px rgba(255, 69, 0, 0.5);
            border: 2px solid var(--accent-gold);
            transition: var(--transition);
            opacity: 0.7;
            animation: fabPulse 3s infinite;
        }

        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(255, 69, 0, 0.7);
        }

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

        .fab-notification {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: #FFD700;
            border-radius: 50%;
            border: 2px solid var(--bg-deep);
            animation: blink 1.5s infinite;
        }

        @keyframes fabPulse {
            0%, 100% { box-shadow: 0 0 20px rgba(255, 69, 0, 0.5); }
            50% { box-shadow: 0 0 35px rgba(255, 69, 0, 0.8); }
        }

        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .hero-visual img {
                height: 280px;
            }
            .matrix-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .trust-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: nowrap;
            }
            .mobile-toggle {
                display: flex;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--bg-deep);
                border-bottom: 1px solid var(--border-dark);
                flex-direction: column;
                padding: 20px 24px;
                gap: 14px;
                z-index: 999;
            }
            .nav-links.open {
                display: flex;
            }
            .header-actions {
                margin-left: auto;
            }
            .btn-signup {
                padding: 8px 16px;
                font-size: 0.8rem;
            }
            .btn-login {
                padding: 6px 10px;
                font-size: 0.8rem;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .section {
                padding: 40px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .matrix-grid {
                grid-template-columns: 1fr;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .trust-grid {
                grid-template-columns: 1fr;
            }
            .cta-title {
                font-size: 1.6rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .hero-cta-group {
                flex-direction: column;
            }
            .btn-primary, .btn-outline {
                width: 100%;
                justify-content: center;
            }
            .hero-stats {
                gap: 20px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .logo {
                font-size: 1.2rem;
            }
            .hero-title {
                font-size: 1.7rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .hero-visual img {
                height: 200px;
            }
            .btn-primary, .btn-outline {
                font-size: 0.9rem;
                padding: 12px 20px;
            }
            .header-actions {
                gap: 8px;
            }
            .btn-signup {
                padding: 8px 12px;
                font-size: 0.75rem;
            }
            .btn-login {
                font-size: 0.75rem;
            }
            .news-item {
                flex-direction: column;
                gap: 6px;
            }
            .news-item-date {
                min-width: auto;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #0B1A30;
            --bg-secondary: #0F0C20;
            --bg-card: #13223A;
            --bg-card-hover: #1A2D4A;
            --bg-dark: #080D1A;
            --accent-lime: #CCFF00;
            --accent-cyan: #00F0FF;
            --accent-gold: #FFD700;
            --accent-red: #FF3B5C;
            --accent-purple: #7C4DFF;
            --text-primary: #FFFFFF;
            --text-secondary: #A6ACAF;
            --text-muted: #6B7280;
            --border-neon: rgba(0, 240, 255, 0.3);
            --border-lime: rgba(204, 255, 0, 0.4);
            --border-gold: rgba(255, 215, 0, 0.4);
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.5);
            --shadow-lime: 0 0 20px rgba(204, 255, 0, 0.3);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.3);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 9999px;
            --space-xs: 8px;
            --space-sm: 16px;
            --space-md: 24px;
            --space-lg: 40px;
            --space-xl: 64px;
            --space-2xl: 80px;
            --font-family: 'Be Vietnam Pro', sans-serif;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        html {
            scroll-behavior: smooth;
        }
        
        body {
            font-family: var(--font-family);
            background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, var(--bg-dark) 100%);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            overflow-x: hidden;
            position: relative;
        }
        
        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: 
                radial-gradient(circle at 20% 20%, rgba(0, 240, 255, 0.03) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(204, 255, 0, 0.03) 0%, transparent 50%),
                radial-gradient(circle at 50% 50%, rgba(124, 77, 255, 0.02) 0%, transparent 60%);
            pointer-events: none;
            z-index: 0;
        }
        
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        button {
            cursor: pointer;
            border: none;
            outline: none;
            font-family: var(--font-family);
            transition: var(--transition);
        }
        
        button:focus-visible,
        a:focus-visible {
            outline: 3px solid var(--accent-cyan);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }
        
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 var(--space-md);
            position: relative;
            z-index: 1;
        }
        
        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(11, 26, 48, 0.9);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-neon);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
        }
        
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 var(--space-md);
            height: 72px;
            max-width: 1280px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }
        
        .logo {
            font-size: 1.35rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 6px;
            color: var(--text-primary);
            white-space: nowrap;
        }
        
        .logo span {
            color: var(--accent-cyan);
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            font-weight: 900;
        }
        
        .logo i {
            color: var(--accent-lime);
            font-size: 1.2rem;
            -webkit-text-fill-color: initial;
        }
        
        .nav-links {
            display: flex;
            align-items: center;
            gap: var(--space-md);
        }
        
        .nav-links a {
            color: var(--text-secondary);
            font-size: 0.9rem;
            font-weight: 500;
            padding: 8px 14px;
            border-radius: var(--radius-full);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        
        .nav-links a:hover {
            color: var(--text-primary);
            background: rgba(0, 240, 255, 0.08);
        }
        
        .nav-links a.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.12);
            border: 1px solid var(--border-neon);
            box-shadow: 0 0 12px rgba(0, 240, 255, 0.2);
        }
        
        .nav-actions {
            display: flex;
            align-items: center;
            gap: var(--space-xs);
        }
        
        .btn-login {
            background: transparent;
            color: var(--text-secondary);
            padding: 10px 18px;
            font-size: 0.9rem;
            font-weight: 600;
            border-radius: var(--radius-full);
            transition: var(--transition);
        }
        
        .btn-login:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }
        
        .btn-signup {
            background: linear-gradient(135deg, var(--accent-cyan), #0099FF);
            color: var(--bg-dark);
            padding: 10px 22px;
            font-size: 0.9rem;
            font-weight: 700;
            border-radius: var(--radius-full);
            box-shadow: 0 4px 20px rgba(0, 240, 255, 0.35);
            transition: var(--transition);
            white-space: nowrap;
        }
        
        .btn-signup:hover {
            box-shadow: 0 6px 30px rgba(0, 240, 255, 0.55);
            transform: translateY(-2px);
        }
        
        .btn-signup:active {
            transform: translateY(0);
            box-shadow: 0 2px 10px rgba(0, 240, 255, 0.3);
        }
        
        .mobile-toggle {
            display: none;
            background: transparent;
            color: var(--text-primary);
            font-size: 1.5rem;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        
        .mobile-toggle:hover {
            background: rgba(0, 240, 255, 0.1);
        }
        
        /* Article Page Layout */
        .article-page {
            padding-top: 120px;
            padding-bottom: var(--space-xl);
            min-height: 100vh;
        }
        
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: var(--space-md);
            flex-wrap: wrap;
        }
        
        .breadcrumb a {
            color: var(--text-secondary);
            transition: var(--transition);
        }
        
        .breadcrumb a:hover {
            color: var(--accent-cyan);
        }
        
        .breadcrumb i {
            font-size: 0.7rem;
            color: var(--text-muted);
        }
        
        .breadcrumb .current {
            color: var(--accent-cyan);
            font-weight: 500;
        }
        
        .article-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: var(--space-lg);
            max-width: 900px;
            margin: 0 auto;
        }
        
        .article-header {
            margin-bottom: var(--space-md);
        }
        
        .article-category-tag {
            display: inline-block;
            background: rgba(204, 255, 0, 0.12);
            color: var(--accent-lime);
            padding: 6px 16px;
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            font-weight: 600;
            border: 1px solid var(--border-lime);
            margin-bottom: var(--space-sm);
        }
        
        .article-title {
            font-size: 2.5rem;
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -0.5px;
            margin-bottom: var(--space-sm);
            background: linear-gradient(135deg, #FFFFFF 0%, #D1F2EB 50%, #A6E3D8 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .article-meta {
            display: flex;
            align-items: center;
            gap: var(--space-md);
            flex-wrap: wrap;
            padding-bottom: var(--space-md);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        
        .article-meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        
        .article-meta-item i {
            color: var(--accent-cyan);
            font-size: 0.9rem;
        }
        
        .article-cover {
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin-bottom: var(--space-lg);
            border: 1px solid var(--border-neon);
            box-shadow: var(--shadow-neon);
            position: relative;
        }
        
        .article-cover img {
            width: 100%;
            height: 400px;
            object-fit: cover;
        }
        
        .article-cover::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 50%;
            background: linear-gradient(to top, rgba(11, 26, 48, 0.8), transparent);
            pointer-events: none;
        }
        
        .article-content {
            font-size: 1.05rem;
            line-height: 1.8;
            color: #D1D5DB;
        }
        
        .article-content h2 {
            font-size: 1.7rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-top: var(--space-lg);
            margin-bottom: var(--space-sm);
            letter-spacing: -0.3px;
            padding-left: var(--space-sm);
            border-left: 4px solid var(--accent-cyan);
        }
        
        .article-content h3 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-top: var(--space-md);
            margin-bottom: var(--space-xs);
        }
        
        .article-content p {
            margin-bottom: var(--space-sm);
            color: #D1D5DB;
        }
        
        .article-content ul,
        .article-content ol {
            margin-bottom: var(--space-sm);
            padding-left: var(--space-md);
        }
        
        .article-content li {
            margin-bottom: var(--space-xs);
            color: #D1D5DB;
        }
        
        .article-content strong {
            color: var(--accent-lime);
            font-weight: 700;
        }
        
        .article-content blockquote {
            background: rgba(0, 240, 255, 0.05);
            border-left: 4px solid var(--accent-cyan);
            padding: var(--space-sm) var(--space-md);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin-bottom: var(--space-sm);
            color: var(--text-secondary);
            font-style: italic;
        }
        
        .article-content a {
            color: var(--accent-cyan);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        
        .article-content a:hover {
            color: var(--accent-lime);
        }
        
        .article-content img {
            border-radius: var(--radius-md);
            margin: var(--space-sm) 0;
        }
        
        .article-not-found {
            text-align: center;
            padding: var(--space-xl) var(--space-md);
        }
        
        .article-not-found i {
            font-size: 4rem;
            color: var(--text-muted);
            margin-bottom: var(--space-sm);
            display: block;
        }
        
        .article-not-found h2 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: var(--space-xs);
            color: var(--text-primary);
        }
        
        .article-not-found p {
            color: var(--text-secondary);
            margin-bottom: var(--space-md);
        }
        
        .article-not-found .btn-return {
            display: inline-block;
            background: linear-gradient(135deg, var(--accent-cyan), #0099FF);
            color: var(--bg-dark);
            padding: 14px 32px;
            font-weight: 700;
            border-radius: var(--radius-full);
            box-shadow: 0 4px 20px rgba(0, 240, 255, 0.35);
            transition: var(--transition);
        }
        
        .article-not-found .btn-return:hover {
            box-shadow: 0 6px 30px rgba(0, 240, 255, 0.55);
            transform: translateY(-2px);
        }
        
        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.08), rgba(204, 255, 0, 0.05));
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-lg);
            padding: var(--space-lg);
            margin-top: var(--space-xl);
            text-align: center;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.2);
        }
        
        .cta-section h3 {
            font-size: 1.6rem;
            font-weight: 800;
            margin-bottom: var(--space-xs);
            color: var(--text-primary);
        }
        
        .cta-section p {
            color: var(--text-secondary);
            margin-bottom: var(--space-md);
            font-size: 1.05rem;
        }
        
        .cta-buttons {
            display: flex;
            gap: var(--space-sm);
            justify-content: center;
            flex-wrap: wrap;
        }
        
        .btn-primary {
            background: linear-gradient(135deg, var(--accent-lime), #A8D600);
            color: var(--bg-dark);
            padding: 14px 32px;
            font-size: 1rem;
            font-weight: 700;
            border-radius: var(--radius-full);
            box-shadow: 0 4px 20px rgba(204, 255, 0, 0.35);
            transition: var(--transition);
        }
        
        .btn-primary:hover {
            box-shadow: 0 6px 30px rgba(204, 255, 0, 0.55);
            transform: translateY(-2px);
        }
        
        .btn-secondary {
            background: transparent;
            color: var(--accent-cyan);
            padding: 14px 32px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: var(--radius-full);
            border: 1px solid var(--border-neon);
            transition: var(--transition);
        }
        
        .btn-secondary:hover {
            background: rgba(0, 240, 255, 0.08);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.25);
        }
        
        /* Footer */
        .site-footer {
            background: rgba(8, 13, 26, 0.95);
            border-top: 1px solid var(--border-neon);
            padding: var(--space-xl) 0 var(--space-md);
            position: relative;
            z-index: 1;
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: var(--space-lg);
            margin-bottom: var(--space-lg);
        }
        
        .footer-brand .logo {
            margin-bottom: var(--space-sm);
        }
        
        .footer-brand p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
        }
        
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--space-sm);
            text-transform: uppercase;
            letter-spacing: 1px;
            font-size: 0.85rem;
        }
        
        .footer-col ul {
            list-style: none;
        }
        
        .footer-col ul li {
            margin-bottom: var(--space-xs);
        }
        
        .footer-col ul li a {
            color: var(--text-secondary);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        
        .footer-col ul li a:hover {
            color: var(--accent-cyan);
        }
        
        .footer-bottom {
            padding-top: var(--space-md);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            text-align: center;
        }
        
        .footer-bottom p {
            color: var(--text-muted);
            font-size: 0.8rem;
        }
        
        .footer-bottom a {
            color: var(--accent-cyan);
            transition: var(--transition);
        }
        
        .footer-bottom a:hover {
            color: var(--accent-lime);
        }
        
        /* FAB */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 900;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(11, 26, 48, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(11, 26, 48, 0.85), rgba(11, 26, 48, 0.85)), 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;
            color: var(--accent-cyan);
            font-size: 1.3rem;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
            transition: var(--transition);
            opacity: 0.65;
            animation: fab-float 3s ease-in-out infinite;
        }
        
        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.75);
        }
        
        .fab:active {
            transform: scale(0.95);
            border-image: linear-gradient(135deg, #FF007F, #FF3B5C) 1;
        }
        
        .fab::after {
            content: '';
            position: absolute;
            top: -2px;
            right: -2px;
            width: 12px;
            height: 12px;
            background: var(--accent-red);
            border-radius: 50%;
            border: 2px solid var(--bg-dark);
            animation: fab-blink 1.5s ease-in-out infinite;
        }
        
        @keyframes fab-float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }
        
        @keyframes fab-blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        
        /* Responsive */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--space-md);
            }
            
            .article-title {
                font-size: 2rem;
            }
        }
        
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                width: 100%;
                background: rgba(11, 26, 48, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                padding: var(--space-md);
                gap: var(--space-xs);
                border-bottom: 1px solid var(--border-neon);
                box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
            }
            
            .nav-links.open {
                display: flex;
            }
            
            .nav-links a {
                width: 100%;
                text-align: left;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }
            
            .mobile-toggle {
                display: block;
            }
            
            .nav-actions {
                gap: 4px;
            }
            
            .btn-login {
                padding: 8px 14px;
                font-size: 0.8rem;
            }
            
            .btn-signup {
                padding: 8px 16px;
                font-size: 0.8rem;
            }
            
            .article-page {
                padding-top: 100px;
            }
            
            .article-title {
                font-size: 1.6rem;
            }
            
            .article-cover img {
                height: 250px;
            }
            
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--space-md);
            }
            
            .cta-section {
                padding: var(--space-md);
            }
            
            .cta-section h3 {
                font-size: 1.3rem;
            }
        }
        
        @media (max-width: 520px) {
            .nav-container {
                padding: 0 var(--space-sm);
                height: 64px;
            }
            
            .logo {
                font-size: 1.1rem;
            }
            
            .nav-links {
                top: 64px;
            }
            
            .btn-login {
                padding: 6px 10px;
                font-size: 0.75rem;
            }
            
            .btn-signup {
                padding: 6px 12px;
                font-size: 0.75rem;
            }
            
            .article-page {
                padding-top: 88px;
                padding-bottom: var(--space-lg);
            }
            
            .article-title {
                font-size: 1.4rem;
            }
            
            .article-cover img {
                height: 200px;
            }
            
            .article-content {
                font-size: 0.95rem;
            }
            
            .article-content h2 {
                font-size: 1.4rem;
            }
            
            .article-content h3 {
                font-size: 1.15rem;
            }
            
            .cta-buttons {
                flex-direction: column;
            }
            
            .btn-primary,
            .btn-secondary {
                width: 100%;
                text-align: center;
            }
            
            .fab {
                width: 48px;
                height: 48px;
                font-size: 1.1rem;
                left: 12px;
                bottom: 80px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0B1A30;
            --bg-secondary: #0F0C20;
            --bg-card: #10243F;
            --accent-primary: #00F0FF;
            --accent-secondary: #CCFF00;
            --accent-danger: #FF2E63;
            --text-primary: #FFFFFF;
            --text-secondary: #A6ACAF;
            --text-muted: #6B7280;
            --border-color: rgba(0, 240, 255, 0.15);
            --border-neon: rgba(0, 240, 255, 0.5);
            --shadow-neon: 0 0 20px rgba(0, 240, 255, 0.15);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-hover: 0 12px 48px rgba(0, 240, 255, 0.25);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 1.5rem;
            --spacing-lg: 2.5rem;
            --spacing-xl: 4rem;
            --font-family: 'Segoe UI', 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-medium: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            min-height: 100vh;
            position: relative;
        }

        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(ellipse at 20% 20%, rgba(0, 240, 255, 0.05) 0%, transparent 60%),
                        radial-gradient(ellipse at 80% 80%, rgba(204, 255, 0, 0.03) 0%, transparent 60%),
                        radial-gradient(ellipse at 50% 50%, rgba(15, 12, 32, 0.9) 0%, transparent 100%);
            pointer-events: none;
            z-index: 0;
        }

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

        a:hover {
            color: var(--accent-secondary);
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent-primary);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            position: relative;
            z-index: 1;
        }

        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(11, 26, 48, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            transition: all var(--transition-medium);
        }

        .site-header.scrolled {
            background: rgba(11, 26, 48, 0.98);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.75rem 0;
            gap: var(--spacing-sm);
        }

        .logo {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 0.3rem;
            transition: color var(--transition-fast);
        }

        .logo span {
            color: var(--accent-primary);
            text-shadow: 0 0 12px rgba(0, 240, 255, 0.6);
        }

        .logo:hover {
            color: var(--accent-primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            list-style: none;
        }

        .nav-links a {
            color: var(--text-secondary);
            font-size: 0.9rem;
            font-weight: 500;
            padding: 0.5rem 0.85rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-links a:hover {
            color: var(--text-primary);
            background: rgba(0, 240, 255, 0.08);
        }

        .nav-links a.active {
            color: var(--accent-primary);
            background: rgba(0, 240, 255, 0.12);
            box-shadow: inset 0 0 0 1px var(--border-neon);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

        .btn-login {
            color: var(--text-secondary);
            font-size: 0.85rem;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }

        .btn-login:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }

        .btn-signup {
            background: var(--accent-primary);
            color: var(--bg-primary);
            font-size: 0.85rem;
            font-weight: 700;
            padding: 0.5rem 1.25rem;
            border-radius: var(--radius-sm);
            box-shadow: 0 0 16px rgba(0, 240, 255, 0.4);
            transition: all var(--transition-fast);
        }

        .btn-signup:hover {
            background: var(--accent-secondary);
            box-shadow: 0 0 24px rgba(204, 255, 0, 0.5);
            transform: translateY(-1px);
            color: var(--bg-primary);
        }

        .mobile-toggle {
            display: none;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-sm);
            padding: 0.5rem 0.7rem;
            color: var(--text-primary);
            font-size: 1.2rem;
            transition: all var(--transition-fast);
        }

        .mobile-toggle:hover {
            background: rgba(0, 240, 255, 0.15);
            color: var(--accent-primary);
        }

        /* Hero Section */
        .hero {
            position: relative;
            padding: 7rem 0 4rem;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 26, 48, 0.95) 0%, rgba(15, 12, 32, 0.85) 50%, rgba(11, 26, 48, 0.92) 100%);
            z-index: 0;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, transparent, var(--accent-primary), var(--accent-secondary), transparent);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-xl);
            align-items: center;
        }

        .hero-text {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
            text-align: left;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(204, 255, 0, 0.12);
            border: 1px solid rgba(204, 255, 0, 0.4);
            color: var(--accent-secondary);
            padding: 0.4rem 1rem;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            width: fit-content;
            letter-spacing: 0.3px;
            text-transform: uppercase;
        }

        .hero-text h1 {
            font-size: clamp(2rem, 4vw, 3.2rem);
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: -1px;
            color: var(--text-primary);
            margin: 0;
        }

        .hero-text h1 .highlight {
            color: var(--accent-primary);
            text-shadow: 0 0 24px rgba(0, 240, 255, 0.6);
        }

        .hero-text .subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.65;
            max-width: 540px;
        }

        .hero-buttons {
            display: flex;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
        }

        .btn-primary {
            background: var(--accent-primary);
            color: var(--bg-primary);
            padding: 0.8rem 1.8rem;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.2px;
            box-shadow: 0 0 24px rgba(0, 240, 255, 0.4);
            transition: all var(--transition-medium);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn-primary:hover {
            background: var(--accent-secondary);
            box-shadow: 0 0 32px rgba(204, 255, 0, 0.5);
            transform: translateY(-2px);
            color: var(--bg-primary);
        }

        .btn-secondary {
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-primary);
            padding: 0.8rem 1.8rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: all var(--transition-medium);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: var(--accent-primary);
            color: var(--accent-primary);
            transform: translateY(-2px);
        }

        .hero-visual {
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .hero-image-wrapper {
            position: relative;
            width: 100%;
            max-width: 480px;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
            border: 2px solid var(--border-neon);
        }

        .hero-image-wrapper::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.2) 0%, transparent 60%);
            z-index: 1;
            pointer-events: none;
        }

        .hero-image-wrapper img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .hero-image-wrapper:hover img {
            transform: scale(1.05);
        }

        .hero-stats {
            position: absolute;
            bottom: -18px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: var(--spacing-md);
            background: rgba(11, 26, 48, 0.95);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-lg);
            padding: 0.8rem 1.5rem;
            z-index: 3;
            box-shadow: var(--shadow-card);
            white-space: nowrap;
        }

        .hero-stat {
            text-align: center;
            padding: 0 0.8rem;
        }

        .hero-stat .stat-number {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--accent-primary);
            display: block;
        }

        .hero-stat .stat-label {
            font-size: 0.7rem;
            color: var(--text-secondary);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        /* Section Styles */
        .section {
            padding: var(--spacing-xl) 0;
            position: relative;
            z-index: 1;
        }

        .section-alt {
            background: var(--bg-secondary);
        }

        .section-header {
            margin-bottom: var(--spacing-lg);
            display: flex;
            flex-direction: column;
            gap: var(--spacing-xs);
        }

        .section-header .section-label {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent-secondary);
            text-transform: uppercase;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .section-header .section-label::before {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--accent-secondary);
            box-shadow: 0 0 8px rgba(204, 255, 0, 0.5);
        }

        .section-header h2 {
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.5px;
            color: var(--text-primary);
            text-align: left;
        }

        .section-header p {
            color: var(--text-secondary);
            font-size: 1rem;
            max-width: 680px;
            line-height: 1.6;
            text-align: left;
        }

        /* Weapons Grid */
        .weapons-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: var(--spacing-md);
        }

        .weapon-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            transition: all var(--transition-medium);
            position: relative;
            overflow: hidden;
            cursor: pointer;
        }

        .weapon-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
            opacity: 0;
            transition: opacity var(--transition-medium);
        }

        .weapon-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-neon);
            box-shadow: var(--shadow-hover);
        }

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

        .weapon-card .weapon-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: rgba(0, 240, 255, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: var(--spacing-sm);
            color: var(--accent-primary);
            font-size: 1.3rem;
        }

        .weapon-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }

        .weapon-card .weapon-meta {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 0.6rem;
            flex-wrap: wrap;
        }

        .weapon-card .weapon-tag {
            font-size: 0.7rem;
            padding: 0.2rem 0.6rem;
            border-radius: 50px;
            font-weight: 600;
            letter-spacing: 0.3px;
            text-transform: uppercase;
        }

        .tag-damage {
            background: rgba(255, 46, 99, 0.15);
            color: var(--accent-danger);
            border: 1px solid rgba(255, 46, 99, 0.3);
        }

        .tag-speed {
            background: rgba(0, 240, 255, 0.15);
            color: var(--accent-primary);
            border: 1px solid rgba(0, 240, 255, 0.3);
        }

        .tag-range {
            background: rgba(204, 255, 0, 0.15);
            color: var(--accent-secondary);
            border: 1px solid rgba(204, 255, 0, 0.3);
        }

        .weapon-card p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.55;
        }

        .weapon-card .weapon-stats {
            display: flex;
            gap: var(--spacing-sm);
            margin-top: var(--spacing-sm);
            padding-top: var(--spacing-sm);
            border-top: 1px solid var(--border-color);
        }

        .weapon-card .weapon-stat-item {
            display: flex;
            flex-direction: column;
            gap: 0.2rem;
        }

        .weapon-card .weapon-stat-value {
            font-weight: 700;
            color: var(--accent-primary);
            font-size: 0.9rem;
        }

        .weapon-card .weapon-stat-label {
            font-size: 0.7rem;
            color: var(--text-muted);
        }

        /* Rooms Section */
        .rooms-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-lg);
            align-items: stretch;
        }

        .rooms-info {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }

        .rooms-info .room-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

        .room-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: var(--spacing-sm) var(--spacing-md);
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .room-item:hover {
            border-color: var(--border-neon);
            background: rgba(0, 240, 255, 0.06);
            transform: translateX(4px);
        }

        .room-item .room-level {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: rgba(0, 240, 255, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-primary);
            font-weight: 700;
            flex-shrink: 0;
        }

        .room-item .room-details {
            flex: 1;
        }

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

        .room-item .room-desc {
            font-size: 0.8rem;
            color: var(--text-secondary);
        }

        .room-item .room-badge {
            font-size: 0.7rem;
            padding: 0.2rem 0.6rem;
            border-radius: 50px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.3px;
        }

        .badge-hot {
            background: rgba(255, 46, 99, 0.15);
            color: var(--accent-danger);
            border: 1px solid rgba(255, 46, 99, 0.3);
        }

        .badge-new {
            background: rgba(204, 255, 0, 0.15);
            color: var(--accent-secondary);
            border: 1px solid rgba(204, 255, 0, 0.3);
        }

        .rooms-visual {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 2px solid var(--border-neon);
        }

        .rooms-visual img {
            width: 100%;
            height: 100%;
            min-height: 400px;
            object-fit: cover;
        }

        .rooms-visual::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(11, 26, 48, 0.8) 100%);
            pointer-events: none;
        }

        /* Steps Section */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
        }

        .step-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            position: relative;
            transition: all var(--transition-medium);
        }

        .step-card:hover {
            border-color: var(--border-neon);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .step-card .step-number {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(0, 240, 255, 0.15);
            border: 1px solid var(--border-neon);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            color: var(--accent-primary);
            margin-bottom: var(--spacing-sm);
        }

        .step-card h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 0.4rem;
        }

        .step-card p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.55;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.08) 0%, rgba(204, 255, 0, 0.06) 100%);
            border-top: 1px solid var(--border-neon);
            border-bottom: 1px solid var(--border-neon);
            padding: var(--spacing-xl) 0;
            position: relative;
            z-index: 1;
        }

        .cta-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: var(--spacing-md);
        }

        .cta-content h2 {
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
        }

        .cta-content p {
            color: var(--text-secondary);
            max-width: 600px;
            font-size: 1rem;
        }

        /* FAQ Section */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
            max-width: 800px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: var(--border-neon);
        }

        .faq-item .faq-question {
            padding: var(--spacing-sm) var(--spacing-md);
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-primary);
            gap: var(--spacing-sm);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: all var(--transition-fast);
        }

        .faq-item .faq-question:hover {
            color: var(--accent-primary);
        }

        .faq-item .faq-question .faq-icon {
            transition: transform var(--transition-fast);
            color: var(--accent-primary);
            flex-shrink: 0;
        }

        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-medium);
            padding: 0 var(--spacing-md);
        }

        .faq-item .faq-answer p {
            padding: 0 0 var(--spacing-md) 0;
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.6;
        }

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

        .faq-item.active .faq-answer {
            max-height: 300px;
        }

        /* Floating Action Button */
        .fab {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 900;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(11, 26, 48, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(11, 26, 48, 0.85), rgba(11, 26, 48, 0.85)), 
                              linear-gradient(135deg, #00F0FF, #CCFF00);
            background-origin: border-box;
            background-clip: padding-box, border-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-primary);
            font-size: 1.4rem;
            cursor: pointer;
            opacity: 0.7;
            transition: all var(--transition-medium);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
            animation: fabFloat 3s ease-in-out infinite;
        }

        .fab::after {
            content: '';
            position: absolute;
            top: -4px;
            right: -4px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--accent-danger);
            border: 2px solid var(--bg-primary);
            animation: fabPulse 2s ease-in-out infinite;
        }

        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 32px rgba(0, 240, 255, 0.6);
            color: var(--accent-secondary);
        }

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

        @keyframes fabFloat {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }

        @keyframes fabPulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }

        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: var(--spacing-xl) 0 var(--spacing-md);
            position: relative;
            z-index: 1;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }

        .footer-brand .logo {
            font-size: 1.3rem;
            margin-bottom: var(--spacing-sm);
        }

        .footer-brand p {
            color: var(--text-secondary);
            font-size: 0.85rem;
            line-height: 1.6;
            max-width: 400px;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .footer-col ul li a {
            color: var(--text-secondary);
            font-size: 0.85rem;
            transition: all var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--accent-primary);
            padding-left: 4px;
        }

        .footer-bottom {
            padding-top: var(--spacing-md);
            border-top: 1px solid var(--border-color);
            text-align: center;
        }

        .footer-bottom p {
            color: var(--text-muted);
            font-size: 0.8rem;
            line-height: 1.5;
        }

        .footer-bottom a {
            color: var(--accent-primary);
        }

        .footer-bottom a:hover {
            color: var(--accent-secondary);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }

            .hero-text {
                text-align: center;
                align-items: center;
            }

            .hero-text .subtitle {
                margin: 0 auto;
            }

            .hero-badge {
                margin: 0 auto;
            }

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

            .hero-image-wrapper {
                max-width: 100%;
            }

            .hero-image-wrapper img {
                height: 300px;
            }

            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .rooms-layout {
                grid-template-columns: 1fr;
            }

            .rooms-visual img {
                min-height: 300px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
                padding: 0.5rem 0;
            }

            .mobile-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }

            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                background: rgba(11, 26, 48, 0.98);
                border-radius: var(--radius-md);
                padding: var(--spacing-sm);
                gap: 0.3rem;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                box-shadow: var(--shadow-card);
            }

            .nav-links.open {
                display: flex;
            }

            .nav-links a {
                width: 100%;
                text-align: left;
                padding: 0.6rem 0.8rem;
            }

            .nav-actions {
                margin-left: auto;
            }

            .hero {
                padding: 6rem 0 3rem;
                background-attachment: scroll;
            }

            .hero-image-wrapper img {
                height: 220px;
            }

            .hero-stats {
                position: relative;
                bottom: auto;
                left: auto;
                transform: none;
                margin-top: var(--spacing-md);
                flex-wrap: wrap;
                justify-content: center;
                gap: var(--spacing-sm);
            }

            .section {
                padding: var(--spacing-lg) 0;
            }

            .weapons-grid {
                grid-template-columns: 1fr;
            }

            .steps-grid {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }

            .fab {
                left: 0.8rem;
                bottom: 5rem;
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
            }
        }

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

            .logo {
                font-size: 1.1rem;
            }

            .btn-login,
            .btn-signup {
                font-size: 0.75rem;
                padding: 0.4rem 0.8rem;
            }

            .hero-text h1 {
                font-size: 1.6rem;
            }

            .hero-text .subtitle {
                font-size: 0.9rem;
            }

            .btn-primary,
            .btn-secondary {
                padding: 0.7rem 1.2rem;
                font-size: 0.85rem;
            }

            .hero-image-wrapper img {
                height: 180px;
            }

            .section-header h2 {
                font-size: 1.4rem;
            }

            .room-item {
                flex-wrap: wrap;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #0F0C20;
            --bg-secondary: #0B1A30;
            --bg-card: #131B2E;
            --accent-lime: #CCFF00;
            --accent-cyan: #00F0FF;
            --accent-purple: #7B2FF2;
            --accent-pink: #FF2D78;
            --text-white: #FFFFFF;
            --text-silver: #A6ACAF;
            --text-muted: #6B7280;
            --border-neon: rgba(0, 240, 255, 0.4);
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.5);
            --shadow-lime: 0 0 12px rgba(204, 255, 0, 0.35);
            --radius-lg: 1.25rem;
            --radius-md: 0.85rem;
            --radius-sm: 0.5rem;
            --transition: all 0.25s ease;
            --font-family: 'Be Vietnam Pro', sans-serif;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        html {
            scroll-behavior: smooth;
        }
        
        body {
            font-family: var(--font-family);
            background: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }
        
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        .container-custom {
            width: min(1180px, 92%);
            margin: 0 auto;
        }
        
        /* Header / Nav */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(15, 12, 32, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.2);
            padding: 0.8rem 0;
            transition: var(--transition);
        }
        
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
        }
        
        .logo {
            font-weight: 800;
            font-size: 1.6rem;
            letter-spacing: -0.02em;
            color: var(--text-white);
            white-space: nowrap;
        }
        
        .logo span {
            color: var(--accent-cyan);
            text-shadow: 0 0 8px rgba(0, 240, 255, 0.7);
        }
        
        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.75rem;
            flex-wrap: wrap;
        }
        
        .nav-links a {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-silver);
            position: relative;
            padding: 0.4rem 0;
            transition: var(--transition);
        }
        
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-cyan);
            transition: var(--transition);
            box-shadow: 0 0 6px var(--accent-cyan);
        }
        
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--text-white);
        }
        
        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }
        
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }
        
        .btn-login {
            background: transparent;
            border: none;
            color: var(--text-white);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.45rem 0.9rem;
            transition: var(--transition);
        }
        
        .btn-login:hover {
            color: var(--accent-cyan);
        }
        
        .btn-signup {
            background: linear-gradient(135deg, var(--accent-cyan), #0099cc);
            color: #0B0B0B;
            font-weight: 700;
            border: none;
            border-radius: 2rem;
            padding: 0.55rem 1.5rem;
            font-size: 0.95rem;
            box-shadow: var(--shadow-neon);
            transition: var(--transition);
            white-space: nowrap;
        }
        
        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.8);
            color: #0B0B0B;
        }
        
        .navbar-toggler-custom {
            background: transparent;
            border: 1px solid rgba(0, 240, 255, 0.4);
            border-radius: 0.5rem;
            color: var(--accent-cyan);
            font-size: 1.5rem;
            padding: 0.3rem 0.75rem;
            display: none;
        }
        
        /* Hero */
        .category-hero {
            padding: 9rem 0 4.5rem;
            background: radial-gradient(circle at 15% 20%, rgba(123, 47, 242, 0.22), transparent 45%),
                        radial-gradient(circle at 85% 80%, rgba(0, 240, 255, 0.18), transparent 50%),
                        var(--bg-secondary);
            position: relative;
            overflow: hidden;
        }
        
        .category-hero::before {
            content: '';
            position: absolute;
            top: -20%;
            left: 30%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(204, 255, 0, 0.08), transparent 60%);
            border-radius: 50%;
            filter: blur(40px);
        }
        
        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 3.5rem;
            align-items: center;
            position: relative;
            z-index: 2;
        }
        
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            background: rgba(0, 240, 255, 0.12);
            border: 1px solid rgba(0, 240, 255, 0.35);
            color: var(--accent-cyan);
            font-size: 0.85rem;
            font-weight: 600;
            padding: 0.4rem 1rem;
            border-radius: 2rem;
            margin-bottom: 1.2rem;
            letter-spacing: 0.02em;
        }
        
        .hero-badge i {
            font-size: 1rem;
        }
        
        .hero-title {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.02em;
            margin-bottom: 1.4rem;
        }
        
        .hero-title .highlight {
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        
        .hero-desc {
            font-size: 1.1rem;
            color: var(--text-silver);
            max-width: 540px;
            line-height: 1.7;
            margin-bottom: 2rem;
        }
        
        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-bottom: 2.5rem;
        }
        
        .btn-primary-custom {
            background: linear-gradient(135deg, var(--accent-lime), #b8e600);
            color: #0B0B0B;
            font-weight: 700;
            font-size: 1rem;
            padding: 0.85rem 2rem;
            border-radius: 2.5rem;
            border: none;
            box-shadow: var(--shadow-lime);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
        }
        
        .btn-primary-custom:hover {
            transform: translateY(-3px);
            box-shadow: 0 0 30px rgba(204, 255, 0, 0.7);
            color: #0B0B0B;
        }
        
        .btn-secondary-custom {
            background: transparent;
            border: 1.5px solid rgba(0, 240, 255, 0.6);
            color: var(--accent-cyan);
            font-weight: 600;
            font-size: 1rem;
            padding: 0.85rem 2rem;
            border-radius: 2.5rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
        }
        
        .btn-secondary-custom:hover {
            background: rgba(0, 240, 255, 0.1);
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-neon);
            color: var(--accent-cyan);
        }
        
        .invite-progress {
            background: rgba(19, 27, 46, 0.8);
            border: 1px solid rgba(0, 240, 255, 0.25);
            border-radius: var(--radius-md);
            padding: 1.5rem 1.8rem;
            margin-top: 0.5rem;
        }
        
        .progress-label {
            display: flex;
            justify-content: space-between;
            font-size: 0.9rem;
            color: var(--text-silver);
            margin-bottom: 0.6rem;
        }
        
        .progress-bar-custom {
            height: 8px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 1rem;
            overflow: hidden;
        }
        
        .progress-bar-fill {
            height: 100%;
            width: 68%;
            background: linear-gradient(90deg, var(--accent-lime), var(--accent-cyan));
            border-radius: 1rem;
            box-shadow: 0 0 10px var(--accent-lime);
        }
        
        .hero-visual {
            position: relative;
        }
        
        .hero-img-wrapper {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid rgba(0, 240, 255, 0.3);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 0 40px rgba(0, 240, 255, 0.2);
            position: relative;
        }
        
        .hero-img-wrapper img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .hero-img-wrapper:hover img {
            transform: scale(1.04);
        }
        
        .hero-img-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(11, 26, 48, 0.9) 0%, transparent 50%);
            display: flex;
            align-items: flex-end;
            padding: 1.5rem;
        }
        
        .overlay-tag {
            background: rgba(204, 255, 0, 0.2);
            border: 1px solid var(--accent-lime);
            color: var(--accent-lime);
            padding: 0.4rem 1.2rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.85rem;
        }
        
        /* Sections */
        .section-block {
            padding: 4.5rem 0;
        }
        
        .section-header {
            margin-bottom: 2.5rem;
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
        }
        
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            position: relative;
            padding-left: 1.2rem;
        }
        
        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 5px;
            height: 34px;
            background: linear-gradient(to bottom, var(--accent-lime), var(--accent-cyan));
            border-radius: 1rem;
            box-shadow: 0 0 12px var(--accent-cyan);
        }
        
        .section-sub {
            color: var(--text-silver);
            font-size: 0.95rem;
            max-width: 400px;
            text-align: right;
        }
        
        .card-custom {
            background: var(--bg-card);
            border: 1px solid rgba(0, 240, 255, 0.18);
            border-radius: var(--radius-md);
            padding: 1.6rem;
            transition: var(--transition);
            height: 100%;
            position: relative;
            overflow: hidden;
        }
        
        .card-custom:hover {
            border-color: var(--accent-cyan);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), 0 0 18px rgba(0, 240, 255, 0.3);
            transform: translateY(-4px);
        }
        
        .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 0.75rem;
            background: rgba(0, 240, 255, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent-cyan);
            margin-bottom: 1.2rem;
        }
        
        .card-title {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
        }
        
        .card-text {
            color: var(--text-silver);
            font-size: 0.95rem;
            line-height: 1.6;
        }
        
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        
        .list-item {
            display: flex;
            gap: 1rem;
            padding: 1rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        
        .list-item:last-child {
            border-bottom: none;
        }
        
        .list-icon {
            flex-shrink: 0;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(204, 255, 0, 0.15);
            color: var(--accent-lime);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
        }
        
        .list-content h5 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 0.3rem;
        }
        
        .list-content p {
            color: var(--text-silver);
            font-size: 0.9rem;
            margin-bottom: 0;
        }
        
        .divider-glow {
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(0, 240, 255, 0.5), transparent);
            margin: 3rem 0;
        }
        
        .weapon-table {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.2rem;
        }
        
        .weapon-card {
            background: rgba(19, 27, 46, 0.7);
            border: 1px solid rgba(0, 240, 255, 0.15);
            border-radius: var(--radius-md);
            padding: 1.3rem;
            text-align: left;
            transition: var(--transition);
        }
        
        .weapon-card:hover {
            border-color: var(--accent-lime);
            box-shadow: var(--shadow-lime);
        }
        
        .weapon-name {
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 0.4rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        
        .weapon-desc {
            color: var(--text-silver);
            font-size: 0.85rem;
            margin-bottom: 0.5rem;
        }
        
        .weapon-stat {
            font-size: 0.8rem;
            color: var(--accent-cyan);
            font-weight: 600;
        }
        
        .faq-item {
            background: rgba(19, 27, 46, 0.6);
            border: 1px solid rgba(0, 240, 255, 0.15);
            border-radius: var(--radius-md);
            margin-bottom: 1rem;
            overflow: hidden;
        }
        
        .faq-question {
            padding: 1.2rem 1.5rem;
            font-weight: 600;
            font-size: 1.05rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            transition: var(--transition);
        }
        
        .faq-question:hover {
            color: var(--accent-cyan);
        }
        
        .faq-question i {
            transition: transform 0.3s ease;
            color: var(--accent-cyan);
        }
        
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 1.5rem;
            color: var(--text-silver);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 1.5rem 1.2rem;
        }
        
        /* CTA Section */
        .cta-section {
            background: radial-gradient(circle at 50% 30%, rgba(123, 47, 242, 0.25), transparent 60%),
                        var(--bg-secondary);
            border: 1px solid rgba(0, 240, 255, 0.2);
            border-radius: var(--radius-lg);
            padding: 3.5rem 2.5rem;
            text-align: left;
            margin: 3rem 0;
        }
        
        .cta-content {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 2rem;
        }
        
        .cta-title {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 0.8rem;
        }
        
        .cta-desc {
            color: var(--text-silver);
            font-size: 1rem;
            max-width: 500px;
        }
        
        /* Footer */
        .site-footer {
            background: #08070F;
            border-top: 1px solid rgba(0, 240, 255, 0.2);
            padding: 3.5rem 0 1.5rem;
            margin-top: 2rem;
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        
        .footer-brand .logo {
            font-size: 1.5rem;
            margin-bottom: 1rem;
            display: inline-block;
        }
        
        .footer-brand p {
            color: var(--text-silver);
            font-size: 0.9rem;
            line-height: 1.7;
        }
        
        .footer-col h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 1.2rem;
            color: var(--text-white);
        }
        
        .footer-col ul {
            list-style: none;
            padding: 0;
        }
        
        .footer-col ul li {
            margin-bottom: 0.7rem;
        }
        
        .footer-col ul li a {
            color: var(--text-silver);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        
        .footer-col ul li a:hover {
            color: var(--accent-cyan);
            padding-left: 4px;
        }
        
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 1.5rem;
            text-align: center;
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        
        .footer-bottom a {
            color: var(--accent-cyan);
        }
        
        /* FAB */
        .fab-custom {
            position: fixed;
            left: 1.5rem;
            bottom: 6rem;
            z-index: 900;
            width: 58px;
            height: 58px;
            border-radius: 50%;
            background: rgba(10, 10, 20, 0.8);
            backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(10, 10, 20, 0.8), rgba(10, 10, 20, 0.8)), 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;
            color: var(--accent-cyan);
            font-size: 1.5rem;
            box-shadow: var(--shadow-neon);
            cursor: pointer;
            transition: var(--transition);
            opacity: 0.7;
            animation: fabFloat 3s ease-in-out infinite;
        }
        
        .fab-custom:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.9);
            color: var(--accent-lime);
        }
        
        .fab-custom:active {
            transform: scale(0.95);
        }
        
        @keyframes fabFloat {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }
        
        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 2.5rem;
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .weapon-table {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-title {
                font-size: 2.6rem;
            }
        }
        
        @media (max-width: 768px) {
            .navbar-toggler-custom {
                display: block;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(15, 12, 32, 0.98);
                flex-direction: column;
                padding: 1.5rem 2rem;
                border-bottom: 1px solid rgba(0, 240, 255, 0.3);
                gap: 1rem;
                align-items: flex-start;
            }
            .nav-links.mobile-open {
                display: flex;
            }
            .nav-actions {
                gap: 0.4rem;
            }
            .btn-login {
                font-size: 0.85rem;
                padding: 0.4rem 0.6rem;
            }
            .btn-signup {
                font-size: 0.85rem;
                padding: 0.5rem 1.1rem;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .weapon-table {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.8rem;
            }
            .cta-content {
                flex-direction: column;
                align-items: flex-start;
            }
            .hero-img-wrapper img {
                height: 280px;
            }
            .section-header {
                flex-direction: column;
                align-items: flex-start;
            }
            .section-sub {
                text-align: left;
            }
        }
        
        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.8rem;
            }
            .btn-primary-custom, .btn-secondary-custom {
                width: 100%;
                justify-content: center;
            }
            .hero-cta-group {
                flex-direction: column;
            }
            .container-custom {
                width: 94%;
            }
            .category-hero {
                padding: 7rem 0 3rem;
            }
        }