:root {
            --bg-color: #ffffff;
            --text-color: #1a1a1a;
            --accent-color: #2563eb;
            --secondary-bg: #f3f4f6;
            --code-bg: #1e1e1e;
            --card-shadow: 0 10px 30px rgba(0,0,0,0.1);
            --gradient-bg: radial-gradient(circle at top right, #f5f7fa 0%, #c3cfe2 100%);
        }

        [data-theme="dark"] {
            --bg-color: #050505;
            --text-color: #f8fafc;
            --accent-color: #3b82f6;
            --secondary-bg: #111111;
            --code-bg: #000000;
            --card-shadow: 0 10px 50px rgba(0,0,0,0.8);
            --gradient-bg: radial-gradient(circle at top right, #0f172a 0%, #050505 100%);
        }

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

        body {
            font-family: 'Inter', sans-serif;
            background: var(--gradient-bg);
            background-attachment: fixed;
            color: var(--text-color);
            line-height: 1.6;
            overflow-x: hidden;
            transition: background 0.5s, color 0.3s;
        }

        #logo-3d-container {
            width: 250px;
            height: 250px;
            margin: 0 auto;
            cursor: move;
            display: flex;             
            justify-content: center;   
            align-items: center;       
            touch-action: none;
            -webkit-user-select: none;
            user-select: none;
        }
        #logo-3d-container:active { cursor: grabbing; }

        .mini-3d-logo {
            width: 40px;
            height: 40px;
            display: inline-block;
            vertical-align: middle;
            margin-right: 10px;
            cursor: move;
        }

        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.5rem 10%;
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(15px);
            border-bottom: 1px solid rgba(128,128,128,0.1);
        }

        .logo-wrapper {
            display: flex;
            align-items: center;
            text-decoration: none;
        }

        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -2px;
            color: var(--accent-color);
        }

        .nav-links {
            display: flex;
            gap: 2.5rem;
            align-items: center;
        }

        .nav-links a {
            text-decoration: none;
            color: inherit;
            font-weight: 500;
            font-size: 0.9rem;
            opacity: 0.7;
            transition: 0.2s;
        }

        .nav-links a:hover { 
            opacity: 1; 
            color: var(--accent-color); 
        }

        .switch {
            font-size: 17px;
            position: relative;
            display: inline-block;
            width: 4em;
            height: 2.2em;
            border-radius: 30px;
            box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
        }

        .switch input {
            opacity: 0;
            width: 0;
            height: 0;
        }

        .slider {
            position: absolute;
            cursor: pointer;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: #2a2a2a;
            transition: 0.4s;
            border-radius: 30px;
            overflow: hidden;
        }

        .slider:before {
            position: absolute;
            content: "";
            height: 1.2em;
            width: 1.2em;
            border-radius: 20px;
            left: 0.5em;
            bottom: 0.5em;
            transition: 0.4s;
            transition-timing-function: cubic-bezier(0.81, -0.04, 0.38, 1.5);
            box-shadow: inset 8px -4px 0px 0px #fff;
        }

        .switch input:checked + .slider {
            background-color: #00a6ff;
        }

        .switch input:checked + .slider:before {
            transform: translateX(1.8em);
            box-shadow: inset 15px -4px 0px 15px #ffcf48;
        }

        .star {
            background-color: #fff;
            border-radius: 50%;
            position: absolute;
            width: 5px;
            transition: all 0.4s;
            height: 5px;
        }

        .star_1 { left: 2.5em; top: 0.5em; }
        .star_2 { left: 2.2em; top: 1.2em; }
        .star_3 { left: 3em; top: 0.9em; }

        .switch input:checked ~ .slider .star {
            opacity: 0;
        }

        .cloud {
            width: 3.5em;
            position: absolute;
            bottom: -1.4em;
            left: -1.1em;
            opacity: 0;
            transition: all 0.4s;
        }

        .switch input:checked ~ .slider .cloud {
            opacity: 1;
        }

        header {
            text-align: center;
            padding: 4rem 10% 4rem;
        }

        h1 {
            font-size: clamp(2.5rem, 8vw, 5rem);
            margin-bottom: 1.5rem;
            font-weight: 800;
            letter-spacing: -3px;
            line-height: 1;
        }

        .subtitle {
            font-size: clamp(1rem, 3vw, 1.25rem);
            opacity: 0.6;
            max-width: 700px;
            margin: 0 auto 3rem;
            font-weight: 300;
        }

        section {
            padding: 4rem 10%;
            max-width: 1400px;
            margin: 0 auto;
        }

        h2 {
            font-size: clamp(2rem, 5vw, 2.5rem);
            margin-bottom: 3rem;
            text-align: center;
            font-weight: 800;
            letter-spacing: -1px;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
        }

        .feature-card {
            background: var(--secondary-bg);
            padding: 2.5rem;
            border-radius: 24px;
            border: 1px solid rgba(128,128,128,0.1);
            transition: 0.3s;
        }

        .feature-card:hover {
            border-color: var(--accent-color);
            transform: translateY(-5px);
        }

        .feature-card h3 {
            margin-bottom: 1rem;
            color: var(--accent-color);
            font-size: 1.3rem;
        }

        .feature-card p {
            font-size: 0.95rem;
            line-height: 1.6;
        }

        .showcase {
            background: var(--secondary-bg);
            border-radius: 32px;
            overflow: hidden;
            box-shadow: var(--card-shadow);
            border: 1px solid rgba(128,128,128,0.1);
        }

        .showcase-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: rgba(0,0,0,0.2);
            padding: 0.5rem 1rem;
        }

        .showcase-menu {
            display: flex;
            gap: 0.5rem;
            overflow-x: auto;
            scrollbar-width: none;
        }

        .showcase-actions {
            display: flex;
            gap: 0.8rem;
        }

        .action-btn {
            background: rgba(255,255,255,0.1);
            border: none;
            color: white;
            padding: 0.4rem 0.8rem;
            border-radius: 8px;
            cursor: pointer;
            font-size: 0.75rem;
            font-weight: 600;
            transition: 0.2s;
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .action-btn:hover {
            background: var(--accent-color);
        }

        .menu-item {
            padding: 0.6rem 1.2rem;
            cursor: pointer;
            border-radius: 12px;
            font-weight: 600;
            font-size: 0.8rem;
            white-space: nowrap;
            opacity: 0.5;
            transition: 0.2s;
            color: white;
        }

        .menu-item.active {
            background: var(--accent-color);
            color: white;
            opacity: 1;
        }

        .code-container {
            padding: 2rem;
            background: var(--code-bg);
            color: #e2e8f0;
            font-family: 'JetBrains Mono', monospace;
            font-size: 1rem;
            min-height: 350px;
            max-height: 500px;
            overflow-y: auto;
            position: relative;
            line-height: 1.7;
        }

        .keyword { color: #66d9ef; }
        .string { color: #a6e22e; }
        .comment { color: #75715e; font-style: italic; }
        .bracket { color: #f92672; }
        .command { color: #66d9ef; font-weight: 500; }
        .escape { color: #fd971f; }

        .cursor {
            display: inline-block;
            width: 10px;
            height: 1.2rem;
            background: var(--accent-color);
            margin-left: 5px;
            animation: blink 0.8s infinite;
        }

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

        .stat-item h4 { 
            font-size: clamp(2rem, 5vw, 3rem);
            color: var(--accent-color); 
            font-weight: 800; 
        }

        .stat-item p { 
            text-transform: uppercase; 
            font-size: 0.75rem; 
            letter-spacing: 2px; 
            opacity: 0.6; 
        }

        .btn-download {
            display: inline-block;
            background: var(--accent-color);
            color: white !important;
            padding: 1rem 2.5rem;
            border-radius: 100px;
            text-decoration: none;
            font-weight: 700;
            font-size: 0.95rem;
            box-shadow: 0 10px 20px rgba(37, 99, 235, 0.2);
            transition: 0.3s;
        }

        .btn-download:hover {
            transform: scale(1.05);
            box-shadow: 0 15px 30px rgba(37, 99, 235, 0.4);
        }

        .btn-secondary {
            display: inline-block;
            padding: 1rem 2.5rem;
            border-radius: 100px;
            border: 1px solid var(--text-color);
            text-decoration: none;
            color: inherit;
            font-weight: 600;
            font-size: 0.95rem;
            transition: 0.3s;
        }

        footer {
            padding: 3rem 10%;
            border-top: 1px solid rgba(128,128,128,0.1);
            text-align: center;
            background: var(--secondary-bg);
        }

        .footer-logo-container {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            margin-bottom: 1rem;
        }

        @keyframes blink { 50% { opacity: 0; } }
        .fade-in { animation: fadeIn 1s ease-out; }
        @keyframes fadeIn { 
            from { opacity: 0; transform: translateY(30px); } 
            to { opacity: 1; transform: translateY(0); } 
        }

        @media (max-width: 768px) {
    #examples {
        display: none;
    }

    nav { 
        padding: 1rem 5%; 
        flex-direction: row;
        justify-content: space-between;
        gap: 0.5rem; 
    }

    .nav-links a:not(.switch) {
        display: none;
    }

    .nav-links {
        gap: 1rem;
    }

    .switch {
        font-size: 14px;
        margin-left: auto;
    }

    header { padding: 2rem 5% 3rem; }
    
    #logo-3d-container {
        width: 180px;
        height: 180px;
    }

    h1 { 
        font-size: 2.2rem; 
        letter-spacing: -1.5px;
    }

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

    #global-impact {
        padding: 2rem 5%;
        border-radius: 20px;
        margin: 1rem;
    }
}
#global-impact {
    background: rgba(var(--accent-color), 0.03);
    border-radius: 40px;
    margin-top: 2rem;
    margin-bottom: 4rem;
}

#global-impact h2 {
    background: linear-gradient(90deg, var(--accent-color), #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 4rem;
}

#global-impact .feature-card {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

@media (max-width: 768px) {
    #global-impact {
        padding: 3rem 5%;
        border-radius: 0;
    }
}