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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

.header {
    text-align: center;
    margin-bottom: 30px;
}

.header h1 {
    color: white;
    font-size: 2.5rem;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.header p {
    color: rgba(255,255,255,0.9);
    font-size: 1.1rem;
}

.main-content {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 20px;
    height: 80vh;
}

.control-panel {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    backdrop-filter: blur(10px);
    overflow-y: auto;
}

.map-container {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 15px;
    padding: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    backdrop-filter: blur(10px);
    position: relative;
}

#map {
    width: 100%;
    height: 100%;
    border-radius: 10px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #444;
}

.form-group input, .form-group select {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.3s ease;
}

.form-group input:focus, .form-group select:focus {
    border-color: #667eea;
    outline: none;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.coordinate-input {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 15px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn:active {
    transform: translateY(0);
}

.btn:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
}

.results-panel {
    background: rgba(248, 249, 250, 0.9);
    border-radius: 10px;
    padding: 20px;
    margin-top: 20px;
    border-left: 4px solid #667eea;
}

.results-panel h3 {
    color: #333;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.route-comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin: 15px 0;
}

.route-info {
    background: white;
    border-radius: 8px;
    padding: 15px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.route-info.no-signals {
    border-left: 4px solid #28a745;
}

.route-info.with-signals {
    border-left: 4px solid #007bff;
}

.route-info h4 {
    margin-bottom: 10px;
    color: #333;
}

.route-metric {
    display: flex;
    justify-content: space-between;
    margin: 8px 0;
    padding: 5px 0;
    border-bottom: 1px solid #eee;
}

.route-metric:last-child {
    border-bottom: none;
}

.metric-label {
    font-weight: 500;
    color: #666;
}

.metric-value {
    font-weight: 600;
    color: #333;
}

.delay-info {
    background: linear-gradient(135deg, #ff6b6b, #ee5a52);
    color: white;
    padding: 15px;
    border-radius: 8px;
    text-align: center;
    margin-top: 15px;
}

.delay-info.no-delay {
    background: linear-gradient(135deg, #51cf66, #40c057);
}

.loading {
    display: none;
    text-align: center;
    color: #667eea;
    font-weight: 600;
}

.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 15px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.error {
    background: #ff6b6b;
    color: white;
    padding: 15px;
    border-radius: 8px;
    margin-top: 15px;
    display: none;
}

.success {
    background: #51cf66;
    color: white;
    padding: 15px;
    border-radius: 8px;
    margin-top: 15px;
    display: none;
}

.legend {
    position: absolute;
    top: 30px;
    right: 30px;
    background: rgba(255, 255, 255, 0.95);
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    z-index: 1000;
    font-size: 14px;
}

.legend h4 {
    margin-bottom: 10px;
    color: #333;
}

.legend-item {
    display: flex;
    align-items: center;
    margin: 8px 0;
    gap: 10px;
}

.legend-line {
    width: 25px;
    height: 4px;
    border-radius: 2px;
}

.legend-line.no-signals {
    background: #28a745;
}

.legend-line.with-signals {
    background: #007bff;
}

.legend-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.legend-dot.start {
    background: #28a745;
}

.legend-dot.goal {
    background: #dc3545;
}

.legend-dot.signal {
    background: #ffc107;
}

@media (max-width: 768px) {
    .main-content {
        grid-template-columns: 1fr;
        height: auto;
    }
    
    .control-panel {
        order: 2;
    }
    
    .map-container {
        order: 1;
        height: 400px;
    }
    
    .route-comparison {
        grid-template-columns: 1fr;
    }
    
    .header h1 {
        font-size: 2rem;
    }
}