:root {
            --primary: #003566; /* OTA Deep Blue */
            --secondary: #001d3d;
            --gold: #ffc300;   /* OTA Signature Yellow */
            --status-ok: #2a9d8f;
            --status-delay: #e76f51;
            --light: #f4f4f4;
            --header-height: 80px;
        }

        * { box-sizing: border-box; }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            margin: 0;
            background-color: var(--light);
            color: #212529;
        }

        /* STICKY HEADER & NAV */
        header {
            background-color: var(--primary);
            color: white;
            padding: 0 5%;
            height: var(--header-height);
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 4px solid var(--gold);
            position: sticky;
            top: 0;
            z-index: 2000;
        }

        nav {
            background: white;
            padding: 0.5rem 5%;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
            display: flex;
            justify-content: flex-start;
            position: sticky;
            top: var(--header-height);
            z-index: 1000;
        }

        nav a {
            text-decoration: none;
            color: var(--primary);
            margin-right: 20px;
            font-weight: bold;
            text-transform: uppercase;
            font-size: 0.85rem;
        }

        /* TRANSIT HERO */
        .transit-hero {
            background: linear-gradient(rgba(0, 53, 102, 0.9), rgba(0, 53, 102, 0.9)), 
                        url('https://images.unsplash.com/photo-1544620347-c4fd4a3d5957?auto=format&fit=crop&w=1200&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 50px 5%;
            text-align: center;
            border-bottom: 5px solid var(--gold);
        }

        .transit-hero h2 { margin: 0; font-size: 2rem; letter-spacing: 1px; }

        /* SCHEDULE BOXES */
        .container {
            max-width: 1100px;
            margin: auto;
            padding: 30px 5%;
        }

        .schedule-box {
            background: white;
            padding: 25px;
            border-radius: 8px;
            box-shadow: 0 4px 10px rgba(0,0,0,0.05);
            margin-bottom: 30px;
            border-top: 5px solid var(--primary);
        }

        table {
            width: 100%;
            border-collapse: collapse;
            margin-top: 15px;
            font-size: 0.95rem;
        }

        th { text-align: left; background: #f8f9fa; padding: 12px; border-bottom: 2px solid #eee; }
        td { padding: 12px; border-bottom: 1px solid #eee; }

        .live-status { color: var(--status-ok); font-weight: bold; }
        .delay-status { color: var(--status-delay); font-weight: bold; }

        .alert-card {
            background: #fff3cd;
            border-left: 5px solid var(--gold);
            padding: 20px;
            border-radius: 4px;
            color: #856404;
        }

        /* MOBILE MENU */
        .menu-toggle {
            display: none;
            cursor: pointer;
            flex-direction: column;
            gap: 5px;
        }
        .menu-toggle span { width: 25px; height: 3px; background: white; border-radius: 2px; }

        @media (max-width: 768px) {
            :root { --header-height: 70px; }
            .menu-toggle { display: flex; }
            .header-info { display: none; }
            header h1 { font-size: 1.2rem; }
            nav {
                display: none;
                position: fixed;
                top: var(--header-height);
                left: 0; width: 100%;
                background: white;
                flex-direction: column;
            }
            nav.active { display: flex; }
            nav a { padding: 15px 25px; border-bottom: 1px solid #eee; width: 100%; }
            table, thead, tbody, th, td, tr { display: block; }
            th { display: none; }
            td { text-align: right; padding-left: 50%; position: relative; }
            td::before {
                content: attr(data-label);
                position: absolute; left: 15px; width: 45%;
                text-align: left; font-weight: bold; color: var(--primary);
            }
        }

        footer {
            background: var(--primary);
            color: #94a3b8;
            padding: 40px 5% 20px;
            text-align: center;
            font-size: 0.8rem;
        }