:root {
            --primary: #1a2a6c;
            --bg: #f0f2f5;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', system-ui, sans-serif;
        }

        body {
            background: linear-gradient(135deg, var(--primary) 0%, #2c3e50 100%);
            height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }

        .card {
            background: white;
            width: 100%;
            max-width: 420px;
            padding: 2rem;
            border-radius: 16px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
            text-align: center;
        }

        .logo {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 10px;
        }

        h2 {
            color: #333;
            margin-bottom: 5px;
            font-weight: 700;
        }

        p {
            color: #666;
            margin-bottom: 20px;
            font-size: 0.9rem;
        }

        .form-group {
            text-align: left;
            margin-bottom: 15px;
        }

        label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            font-size: 0.85rem;
            color: #444;
        }

        input {
            width: 100%;
            padding: 12px 15px;
            border: 2px solid #eee;
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.2s, box-shadow 0.2s;
        }

        input:focus {
            outline: none;
            border-color: var(--primary);
        }

        .btn {
            width: 100%;
            padding: 14px;
            background: var(--primary);
            color: white;
            border: none;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 700;
            cursor: pointer;
        }

        .btn:hover {
            background: #121e4d;
        }

        .alert {
            padding: 12px;
            border-radius: 6px;
            margin-bottom: 20px;
            font-size: 0.85rem;
            text-align: left;
        }

        .alert-success {
            background: #e8f5e9;
            color: #2e7d32;
            border-left: 4px solid #2e7d32;
        }

        .alert-danger {
            background: #ffebee;
            color: #c62828;
            border-left: 4px solid #c62828;
        }

        .back-link {
            margin-top: 20px;
            display: inline-block;
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
        }

        .info-card {
            background: linear-gradient(135deg, #e8f5e9 0%, #f0f7f0 100%);
            border: 1px solid #81c784;
            border-radius: 8px;
            padding: 14px;
            margin-bottom: 20px;
            text-align: left;
        }

        .info-card h6 {
            color: #2e7d32;
            font-weight: 600;
            margin-bottom: 6px;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .info-card p {
            color: #388e3c;
            font-size: 0.8rem;
            margin: 0;
            line-height: 1.4;
        }