@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');
    
    :root {
        --bg-main: #0b132b;
        --bg-elevated: #1c2541;
        --bg-card: #2d3f5a;
        --bg-card-soft: #2d3f5a;
        --border-subtle: rgba(91, 192, 190, 0.22);
        --border-strong: rgba(111, 255, 233, 0.7);
        --primary: #5bc0be;
        --primary-soft: rgba(91, 192, 190, 0.18);
        --accent: #6fffe9;
        --accent-soft: rgba(111, 255, 233, 0.18);
        --text-main: #e5e7eb;
        --text-muted: #9ca3af;
        --shadow-card: 0 18px 60px rgba(0, 0, 0, 0.6);
        --radius-lg: 22px;
        --radius-xl: 26px;
    }

    * {
        box-sizing: border-box;
    }

    html, body {
        width: 100%;
        overflow-x: hidden;
    }

    body {
        margin: 0;
        padding: 0;
        min-height: 100vh;
        font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        background: var(--bg-main);
        color: var(--text-main);
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

    .container {
        max-width: 1200px;
        margin: 96px auto 40px;
        padding: 0 20px 40px;
    }

    .page-header {
        border-radius: var(--radius-xl);
        background: var(--bg-card);
        border: 1px solid var(--border-subtle);
        box-shadow: var(--shadow-card);
        padding: 40px;
        margin-bottom: 40px;
        text-align: center;
    }

    .page-header h1 {
        margin: 0 0 12px;
        color: var(--text-main);
        font-size: 32px;
        font-weight: 800;
        letter-spacing: -0.02em;
    }

    .page-header p {
        margin: 0;
        color: var(--text-muted);
        font-size: 16px;
    }

    .page-header a {
        display: inline-block;
        margin-top: 20px;
        padding: 12px 24px;
        background: var(--primary);
        color: var(--bg-main);
        border-radius: 12px;
        text-decoration: none;
        font-weight: 600;
        font-size: 14px;
        transition: all 0.2s ease;
    }

    .page-header a:hover {
        background: var(--accent);
        transform: translateY(-2px);
    }

    .page-header-route-img {
        display: block;
        max-width: 420px;
        width: 100%;
        height: auto;
        margin: 20px auto 0;
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-card);
    }

    .info-section {
        background: var(--bg-card);
        border: 1px solid var(--border-subtle);
        border-radius: var(--radius-xl);
        padding: 40px;
        box-shadow: var(--shadow-card);
        margin-bottom: 40px;
        line-height: 1.7;
    }

    .info-section h2 {
        margin: 0 0 20px;
        color: var(--accent);
        font-size: 28px;
        font-weight: 800;
    }

    .info-section h3 {
        margin: 32px 0 16px;
        color: var(--text-main);
        font-size: 22px;
        font-weight: 700;
    }

    .info-section h4 {
        margin: 24px 0 12px;
        color: var(--accent);
        font-size: 18px;
        font-weight: 600;
    }

    .info-section p {
        margin: 12px 0;
        color: var(--text-main);
        font-size: 16px;
    }

    .info-section ul {
        margin: 12px 0;
        padding-left: 24px;
        color: var(--text-main);
    }

    .info-section li {
        margin: 8px 0;
        font-size: 16px;
        line-height: 1.6;
    }

    .info-section strong {
        color: var(--accent);
        font-weight: 600;
    }

    .bottom-line {
        background: var(--primary-soft);
        border-left: 4px solid var(--primary);
        padding: 24px;
        border-radius: 12px;
        margin-top: 32px;
    }

    .bottom-line p {
        margin: 8px 0;
    }

    .routes-section {
        max-width: 1200px;
        margin: 0 auto 40px;
        padding: 0 20px 40px;
    }

    .routes-container {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 24px;
        margin-top: 40px;
    }

    .route-card {
        background: var(--bg-card);
        border: 1px solid var(--border-subtle);
        border-radius: var(--radius-lg);
        padding: 24px;
        box-shadow: var(--shadow-card);
        text-align: center;
        transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .route-card:hover {
        transform: translateY(-4px);
        box-shadow: 0 24px 80px rgba(0, 0, 0, 0.7);
    }

    .route-card h3 {
        margin: 0 0 16px;
        color: var(--text-main);
        font-size: 20px;
        font-weight: 700;
    }

    .route-btn {
        width: 100%;
        padding: 14px 24px;
        background: var(--primary);
        color: var(--bg-main);
        border: none;
        border-radius: 12px;
        font-size: 16px;
        font-weight: 600;
        cursor: pointer;
        transition: all 0.2s ease;
    }

    .route-btn:hover {
        background: var(--accent);
        transform: translateY(-2px);
    }

    .route-btn-group {
        display: flex;
        gap: 12px;
        align-items: stretch;
    }

    .route-btn-group .route-btn {
        width: auto;
        flex: 1;
    }

    .route-btn-group .route-btn-main {
        flex: 2;
    }

    .route-btn-group .route-btn-manoeuvre {
        flex: 1;
        background: var(--accent);
    }

    .route-btn-group .route-btn-manoeuvre:hover {
        background: var(--primary);
    }

    .btn-back {
        display: inline-block;
        margin: 20px;
        padding: 12px 24px;
        background: transparent;
        color: var(--text-muted);
        border: 1px solid var(--border-subtle);
        border-radius: 12px;
        text-decoration: none;
        font-size: 14px;
        font-weight: 500;
        transition: all 0.2s ease;
    }

    .btn-back.btn-back-floating {
        position: fixed;
        left: 24px;
        bottom: 24px;
        z-index: 2000;
        margin: 0;
        padding: 0;
        width: 44px;
        height: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border-radius: 999px;
        background: var(--bg-card);
        box-shadow: var(--shadow-card);
        font-size: 18px;
    }

    .btn-back:hover {
        color: var(--text-main);
        border-color: var(--primary);
    }

    .about-driveflow-card {
        max-width: 520px;
        margin: 0 auto 16px;
        padding: 20px 24px;
        border-radius: 16px;
        background: var(--bg-card);
        border: 1px solid var(--border-subtle);
        box-shadow: var(--shadow-card);
        text-align: center;
    }

    .about-driveflow-card h3 {
        margin: 0 0 8px;
        font-size: 18px;
        color: var(--text-main);
        font-weight: 700;
    }

    .about-driveflow-card p {
        margin: 0 0 12px;
        font-size: 14px;
        color: var(--text-muted);
    }

    .loading {
        text-align: center;
        padding: 40px;
        color: var(--text-muted);
        font-size: 18px;
    }

    .error {
        background: rgba(239, 68, 68, 0.1);
        border: 1px solid rgba(239, 68, 68, 0.3);
        border-radius: 12px;
        padding: 20px;
        margin-bottom: 24px;
        color: #ef4444;
        text-align: center;
    }

    @media (max-width: 768px) {
        .container {
            margin-top: 80px;
            padding: 0 16px 32px;
        }

        .page-header {
            padding: 24px;
        }

        .page-header h1 {
            font-size: 24px;
        }

        .page-header p {
            font-size: 14px;
        }

        .routes-container {
            grid-template-columns: 1fr;
            gap: 16px;
            margin-top: 16px;
        }

        .route-card {
            padding: 20px;
        }

        .route-btn-group {
            flex-direction: column;
        }

        .route-btn-group .route-btn-main,
        .route-btn-group .route-btn-manoeuvre {
            flex: none;
            width: 100%;
        }

        .btn-back {
            margin: 20px;
            padding: 8px 16px;
            font-size: 12px;
        }

        .btn-back.btn-back-floating {
            left: 16px;
            bottom: 16px;
            width: 48px;
            height: 48px;
            font-size: 20px;
        }
    }