:root { 
        --bg: #090a0f; 
        --bg-alt: #11131c;
        --primary: #00f5d4; 
        --primary-glow: rgba(0, 245, 212, 0.35);
        --secondary: #d4af37;
        --secondary-glow: rgba(212, 175, 55, 0.35);
        --violet: #7b2cbf;
        --rubedo: #ff2a6d;
        --glass: rgba(17, 19, 28, 0.8); 
        --glass-border: rgba(212, 175, 55, 0.22);
        --glass-border-cyan: rgba(0, 245, 212, 0.2);
        --text: #f1f5f9; 
        --text-muted: #94a3b8;
        --danger: #ff2a54;
        --warning: #f59e0b;
        --font-mono: 'JetBrains Mono', monospace;
    }
    
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body { 
        margin: 0; 
        font-family: 'Outfit', sans-serif; 
        background: var(--bg); 
        color: var(--text); 
        line-height: 1.65;
        overflow-x: hidden; 
    }
    
    /* Background alchemical grid */
    body::before {
        content: ''; 
        position: fixed; 
        top: 0; left: 0; 
        width: 100vw; height: 100vh;
        background-image: 
            radial-gradient(circle at 50% 15%, rgba(123, 44, 191, 0.12), transparent 60%),
            radial-gradient(circle at 80% 80%, rgba(212, 175, 55, 0.06), transparent 50%),
            linear-gradient(rgba(30, 34, 51, 0.45) 1px, transparent 1px),
            linear-gradient(90deg, rgba(30, 34, 51, 0.45) 1px, transparent 1px);
        background-size: 100% 100%, 100% 100%, 48px 48px, 48px 48px; 
        z-index: -1;
    }

    .glass-header { 
        display: flex; justify-content: space-between; align-items: center; 
        padding: 16px 40px; background: rgba(9, 10, 15, 0.88); backdrop-filter: blur(12px);
        border-bottom: 1px solid var(--glass-border); position: sticky; top: 0; z-index: 100;
    }
    .logo-link { text-decoration: none; display: flex; align-items: center; gap: 12px; }
    .logo-icon { width: 34px; height: 34px; border-radius: 6px; border: 1px solid var(--secondary); }
    .logo { 
        font-weight: 800; font-size: 1.55rem; color: var(--secondary); letter-spacing: 2px; 
    }
    .logo span { color: var(--primary); text-shadow: 0 0 12px var(--primary-glow); }
    nav { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; }
    nav a { 
        color: var(--text-muted); text-decoration: none; font-weight: 500; font-size: 0.95rem;
        transition: 0.25s; padding: 6px 12px; border-radius: 6px;
    }
    nav a:hover, nav a.active { 
        color: #fff; background: rgba(0, 245, 212, 0.1); 
        border-bottom: 2px solid var(--primary);
        text-shadow: 0 0 10px var(--primary-glow); 
    }
    
    .game-nav-wrapper {
        display: flex;
        align-items: center;
        gap: 28px;
    }

    .lang-switch { display: flex; align-items: center; gap: 8px; font-weight: 600; font-size: 0.9rem; }
    .lang-switch a { color: var(--text-muted); text-decoration: none; transition: 0.2s; padding: 2px 6px; border-radius: 4px; }
    .lang-switch a:hover { color: #fff; }
    .lang-switch a.active-lang { color: var(--primary); background: rgba(0, 245, 212, 0.15); border: 1px solid var(--glass-border-cyan); }
    .lang-switch .sep { color: #475569; }

    /* Mobile Menu Toggle (hidden on desktop) */
    .menu-toggle {
        display: none;
        background: transparent;
        border: none;
        cursor: pointer;
        padding: 8px;
    }

    /* Hero */
    .hero { 
        min-height: 68vh; background-size: cover; background-position: center; 
        display: flex; align-items: center; justify-content: center;
        box-shadow: inset 0 0 140px #000;
        padding: 40px 20px;
        border-bottom: 1px solid var(--glass-border);
    }
    .hero-content { text-align: center; max-width: 760px; padding: 45px 40px; }
    .badge-hero { 
        display: inline-block; color: var(--secondary); border: 1px solid var(--secondary); 
        padding: 4px 16px; border-radius: 20px; font-size: 0.85rem; font-weight: 700; 
        letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 18px;
        background: rgba(212, 175, 55, 0.1);
    }
    .hero-content h1 { 
        font-size: 3.6rem; margin: 6px 0 14px; color: var(--secondary); 
        letter-spacing: 3px; text-shadow: 0 0 24px rgba(212, 175, 55, 0.3);
    }
    .hero-tagline {
        font-size: 1.25rem; color: var(--primary); font-weight: 600; margin: 0 0 16px;
    }
    .hero-desc { font-size: 1.1rem; color: #cbd5e1; margin-bottom: 32px; max-width: 640px; margin-left: auto; margin-right: auto; }
    .hero-buttons { display: flex; justify-content: center; gap: 18px; flex-wrap: wrap; }
    
    .btn-primary {
        display: inline-flex; align-items: center; gap: 8px; padding: 14px 28px; 
        background: var(--primary); color: #090a0f; border: 1px solid var(--primary); border-radius: 6px;
        text-decoration: none; font-weight: 800; text-transform: uppercase; letter-spacing: 1px;
        transition: 0.3s; box-shadow: 0 0 20px rgba(0, 245, 212, 0.3);
    }
    .btn-primary:hover { background: #5efce8; transform: translateY(-2px); box-shadow: 0 0 30px var(--primary); color: #090a0f; }
    
    .btn-gold {
        display: inline-flex; align-items: center; gap: 8px; padding: 14px 28px; 
        background: var(--secondary); color: #090a0f; border: 1px solid var(--secondary); border-radius: 6px;
        text-decoration: none; font-weight: 800; text-transform: uppercase; letter-spacing: 1px;
        transition: 0.3s; box-shadow: 0 0 20px rgba(212, 175, 55, 0.25);
    }
    .btn-gold:hover { background: #e5c349; transform: translateY(-2px); box-shadow: 0 0 28px var(--secondary); color: #090a0f; }

    .btn-secondary {
        display: inline-flex; align-items: center; gap: 8px; padding: 14px 28px; 
        background: rgba(255, 255, 255, 0.04); color: #fff; border: 1px solid rgba(255,255,255,0.28); border-radius: 6px;
        text-decoration: none; font-weight: 600; text-transform: uppercase; letter-spacing: 1px;
        transition: 0.3s;
    }
    .btn-secondary:hover { background: rgba(255,255,255,0.12); border-color: #fff; transform: translateY(-2px); }

    /* Layout & Panels */
    .container { max-width: 1080px; margin: 50px auto; padding: 0 24px; }
    
    .glass-panel {
        background: var(--glass); 
        border: 1px solid var(--glass-border);
        border-radius: 14px; 
        backdrop-filter: blur(10px);
        box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
        padding: 32px;
    }

    .callout-banner {
        display: flex; align-items: center; gap: 20px;
        background: rgba(255, 42, 109, 0.08); border-color: rgba(255, 42, 109, 0.35);
        margin-bottom: 40px; padding: 20px 26px;
    }
    .callout-icon { font-size: 2.2rem; line-height: 1; }
    .callout-banner p { margin: 0; font-size: 1.05rem; font-weight: 500; color: #ffe4ed; }
    .callout-banner strong { color: var(--primary); }

    .manual-section { margin-bottom: 45px; position: relative; scroll-margin-top: 90px; }
    .section-tag {
        display: inline-block; background: rgba(212, 175, 55, 0.12); color: var(--secondary);
        font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px;
        padding: 4px 10px; border-radius: 4px; margin-bottom: 12px; border: 1px solid rgba(212, 175, 55, 0.3);
    }
    .manual-section h2 { 
        color: var(--secondary); font-size: 1.9rem; margin-top: 0; margin-bottom: 18px; 
        border-bottom: 1px solid var(--glass-border); padding-bottom: 12px;
    }
    .section-lead { font-size: 1.1rem; color: #cbd5e1; margin-bottom: 25px; }
    .section-body p { margin-bottom: 16px; font-size: 1.05rem; color: #e2e8f0; }
    .section-body strong { color: var(--primary); font-weight: 600; }
    .section-body code, td code { 
        background: rgba(0, 245, 212, 0.1); color: var(--primary); 
        padding: 2px 7px; border-radius: 4px; font-family: var(--font-mono); font-size: 0.9em; 
        border: 1px solid rgba(0, 245, 212, 0.2);
    }

    /* Highlights Grid */
    .highlights-grid { 
        display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); 
        gap: 18px; margin-top: 25px; 
    }
    .highlight-card {
        background: rgba(9, 10, 15, 0.65); border: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: 10px; padding: 18px; display: flex; flex-direction: column; gap: 6px;
        border-left: 3px solid var(--secondary);
    }
    .hl-label { font-size: 0.8rem; text-transform: uppercase; color: var(--secondary); font-weight: 700; letter-spacing: 1px; }
    .hl-val { font-size: 1rem; color: #fff; font-weight: 500; }

    /* Anatomy & Mechanics Cards */
    .mechanics-grid {
        display: grid; grid-template-columns: repeat(auto-fit, minmax(235px, 1fr)); gap: 20px; margin: 24px 0;
    }
    .mech-card {
        background: rgba(9, 10, 15, 0.75); border: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: 10px; padding: 22px; transition: 0.25s;
    }
    .mech-card:hover { transform: translateY(-3px); }
    .mech-cyan { border-top: 3px solid var(--primary); }
    .mech-violet { border-top: 3px solid var(--violet); }
    .mech-rubedo { border-top: 3px solid var(--rubedo); }
    .mech-gold { border-top: 3px solid var(--secondary); }
    .mech-card h3 { margin: 0 0 10px; font-size: 1.15rem; color: #fff; }
    .mech-cyan h3 { color: var(--primary); }
    .mech-violet h3 { color: #c084fc; }
    .mech-rubedo h3 { color: var(--rubedo); }
    .mech-gold h3 { color: var(--secondary); }
    .mech-card p { margin: 0; font-size: 0.95rem; color: #cbd5e1; line-height: 1.55; }

    /* Formulas */
    .formulas-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 22px; margin-top: 24px; }
    .formula-card { 
        background: rgba(9, 10, 15, 0.85); border: 1px solid var(--glass-border-cyan); 
        padding: 22px; border-radius: 10px; display: flex; flex-direction: column; 
    }
    .formula-header h3 { margin: 0 0 12px; color: #fff; font-size: 1.15rem; }
    .formula-box {
        background: #050609; border: 1px solid rgba(0, 245, 212, 0.3);
        border-radius: 8px; padding: 12px 16px; margin-bottom: 14px;
        box-shadow: inset 0 0 10px rgba(0, 245, 212, 0.06);
    }
    .formula-box code { 
        font-family: var(--font-mono); font-size: 1rem; color: var(--primary); 
        display: block; text-shadow: 0 0 8px var(--primary-glow); background: none; border: none; padding: 0;
    }
    .formula-desc { font-size: 0.94rem; color: #94a3b8; margin: 0; line-height: 1.55; }
    .formula-desc strong { color: #f1f5f9; }

    /* Hazards & Trials */
    .trials-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(310px, 1fr)); gap: 24px; }
    .trial-card {
        background: rgba(9, 10, 15, 0.8); border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: 12px; padding: 24px; display: flex; flex-direction: column; gap: 12px;
    }
    .trial-badge {
        display: inline-block; align-self: flex-start; font-size: 0.75rem; font-weight: 700;
        text-transform: uppercase; letter-spacing: 1px; padding: 3px 10px; border-radius: 12px;
    }
    .badge-albedo { background: rgba(226, 232, 240, 0.15); color: #e2e8f0; border: 1px solid #94a3b8; }
    .badge-citrinitas { background: rgba(245, 158, 11, 0.15); color: #fef08a; border: 1px solid #f59e0b; }
    .badge-rubedo { background: rgba(212, 175, 55, 0.15); color: var(--secondary); border: 1px solid var(--secondary); }
    .trial-card h3 { margin: 0; font-size: 1.3rem; color: #fff; }
    .trial-card p { margin: 0; font-size: 0.96rem; color: #cbd5e1; line-height: 1.6; }

    /* Screenshots Gallery */
    .gallery-grid {
        display: grid; grid-template-columns: repeat(auto-fit, minmax(310px, 1fr)); gap: 24px;
    }
    .gallery-card {
        background: rgba(9, 10, 15, 0.85); border: 1px solid var(--glass-border);
        border-radius: 12px; overflow: hidden; transition: 0.3s; display: flex; flex-direction: column;
    }
    .gallery-card:hover {
        transform: translateY(-5px);
        border-color: var(--primary);
        box-shadow: 0 12px 30px rgba(0, 245, 212, 0.15);
    }
    .gallery-img-wrap {
        width: 100%; aspect-ratio: 16 / 9; background: #050609; overflow: hidden;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .gallery-img-wrap img {
        width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.35s ease;
    }
    .gallery-card:hover .gallery-img-wrap img {
        transform: scale(1.03);
    }
    .gallery-caption { padding: 18px 20px; flex: 1; }
    .gallery-caption h3 { margin: 0 0 8px; font-size: 1.15rem; color: var(--secondary); }
    .gallery-caption p { margin: 0; font-size: 0.92rem; color: #cbd5e1; line-height: 1.5; }

    /* Features List */
    .features-grid {
        display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px;
    }
    .feature-item {
        background: rgba(9, 10, 15, 0.65); border: 1px solid rgba(255, 255, 255, 0.07);
        border-radius: 10px; padding: 18px 20px; display: flex; gap: 14px; align-items: flex-start;
    }
    .feature-icon { font-size: 1.5rem; line-height: 1.2; }
    .feature-text h3 { margin: 0 0 6px; font-size: 1.05rem; color: #fff; }
    .feature-text p { margin: 0; font-size: 0.9rem; color: #94a3b8; line-height: 1.5; }

    /* Controls Table */
    .table-responsive { width: 100%; overflow-x: auto; margin-top: 15px; border-radius: 10px; border: 1px solid var(--glass-border); }
    .controls-table { width: 100%; border-collapse: collapse; font-size: 0.95rem; background: rgba(9, 10, 15, 0.8); }
    .controls-table thead tr { background: #11131c; border-bottom: 2px solid var(--secondary); color: var(--secondary); text-align: left; }
    .controls-table th, .controls-table td { padding: 12px 16px; }
    .controls-table tbody tr { border-bottom: 1px solid #1e2233; transition: background 0.2s; }
    .controls-table tbody tr:last-child { border-bottom: none; }
    .controls-table tbody tr:hover { background: rgba(0, 245, 212, 0.04); }
    .controls-table td strong { color: #fff; }

    /* Support Box */
    .support-box {
        background: linear-gradient(135deg, rgba(212, 175, 55, 0.1), rgba(123, 44, 191, 0.1));
        border: 1px solid var(--secondary); border-radius: 14px; padding: 32px; text-align: center;
        margin-top: 45px;
    }
    .support-box h2 { color: var(--secondary); margin-top: 0; font-size: 1.65rem; border: none; padding: 0; }
    .support-box p { color: #e2e8f0; max-width: 720px; margin: 0 auto 18px; font-size: 1.02rem; }
    .support-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; margin-top: 22px; }

    /* Footer */
    footer { 
        text-align: center; padding: 40px 20px; color: #64748b; 
        border-top: 1px solid var(--glass-border); margin-top: 70px; background: rgba(5, 6, 9, 0.9);
    }
    .footer-brand { font-weight: 700; color: var(--secondary); letter-spacing: 1px; margin-bottom: 8px; }
    .footer-athanode {
        margin: 16px 0;
        display: flex;
        justify-content: center;
        align-items: center;
        gap: 10px;
        flex-wrap: wrap;
    }
    .athanode-back-link {
        display: inline-flex; align-items: center; gap: 8px; color: var(--primary);
        text-decoration: none; font-weight: 600; font-size: 0.9rem; padding: 7px 18px;
        border-radius: 20px; background: rgba(0, 245, 212, 0.07);
        border: 1px solid rgba(0, 245, 212, 0.25); transition: all 0.25s ease;
    }
    .athanode-back-link:hover {
        background: rgba(0, 245, 212, 0.18); border-color: var(--primary);
        color: #fff; transform: translateY(-2px); box-shadow: 0 0 16px var(--primary-glow);
    }
    .footer-social-links {
        display: inline-flex; align-items: center; gap: 10px; flex-wrap: wrap; justify-content: center;
    }
    .footer-social-link {
        display: inline-flex; align-items: center; gap: 7px; color: #cbd5e1;
        text-decoration: none; font-weight: 500; font-size: 0.88rem; padding: 7px 15px;
        border-radius: 20px; background: rgba(255, 255, 255, 0.04);
        border: 1px solid rgba(255, 255, 255, 0.14); transition: all 0.25s ease;
    }
    .footer-social-link svg {
        width: 15px; height: 15px; fill: currentColor; flex-shrink: 0; transition: transform 0.25s ease;
    }
    .footer-social-link:hover {
        background: rgba(0, 245, 212, 0.14); border-color: var(--primary);
        color: #fff; transform: translateY(-2px); box-shadow: 0 0 14px var(--primary-glow);
    }
    .footer-social-link:hover svg {
        transform: scale(1.1); color: var(--primary);
    }
    footer p { margin: 0; font-size: 0.85rem; }

    /* Animations & Media Queries */
    .fade-in { animation: fadeIn 0.6s ease-out; }
    @keyframes fadeIn { from { opacity: 0; transform: translateY(15px); } to { opacity: 1; transform: translateY(0); } }

    @media (max-width: 850px) {
        .glass-header { 
            padding: 10px 18px; 
            flex-direction: row; 
            justify-content: space-between;
            align-items: center;
            height: 58px;
        }
        .logo-icon { width: 28px; height: 28px; }
        .logo { font-size: 1.25rem; letter-spacing: 1px; }

        .menu-toggle {
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            width: 40px;
            height: 40px;
            background: rgba(17, 19, 28, 0.85);
            border: 1px solid var(--glass-border);
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.25s ease;
        }

        .menu-toggle:hover,
        .menu-toggle.is-active {
            border-color: var(--primary);
            background: rgba(0, 245, 212, 0.12);
        }

        .hamburger-bar {
            display: block;
            width: 20px;
            height: 2px;
            background-color: var(--secondary);
            border-radius: 2px;
            transition: transform 0.25s ease, opacity 0.25s ease, background-color 0.25s ease;
        }

        .menu-toggle.is-active .hamburger-bar {
            background-color: var(--primary);
        }

        .menu-toggle.is-active .hamburger-bar:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .menu-toggle.is-active .hamburger-bar:nth-child(2) {
            opacity: 0;
        }

        .menu-toggle.is-active .hamburger-bar:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .game-nav-wrapper {
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            width: 100%;
            background: rgba(9, 10, 15, 0.98);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 2px solid var(--primary);
            box-shadow: 0 16px 36px rgba(0, 0, 0, 0.8);
            flex-direction: column;
            gap: 0;
            max-height: 0;
            opacity: 0;
            overflow: hidden;
            pointer-events: none;
            transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.25s ease;
        }

        .game-nav-wrapper.is-open {
            max-height: 480px;
            opacity: 1;
            pointer-events: auto;
        }

        nav {
            flex-direction: column;
            gap: 0;
            width: 100%;
        }

        nav a {
            display: block;
            padding: 13px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 1rem;
            width: 100%;
            text-align: left;
            border-radius: 0;
        }

        nav a:hover,
        nav a.active {
            background: rgba(0, 245, 212, 0.1);
            color: var(--primary);
            padding-left: 24px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .lang-switch {
            width: 100%;
            justify-content: center;
            gap: 16px;
            padding: 14px 20px 18px 20px;
            background: rgba(0, 0, 0, 0.35);
        }

        .lang-switch a {
            padding: 6px 14px;
        }

        .hero-content { padding: 30px 20px; }
        .hero-content h1 { font-size: 2.4rem; }
        .callout-banner { flex-direction: column; text-align: center; }
        .manual-section { padding: 22px; }
    }