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

body {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

header {
    background-color: #1a73e8;
    color: white;
    padding: 1rem 0;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.logo {
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
}

.hero {
    text-align: center;
    margin: 3rem 0;
}

.hero h1 {
    font-size: 3rem;
    color: #1a73e8;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    color: #5f6368;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 2.5rem;
    color: #1a73e8;
    margin-bottom: 1rem;
}

.feature-card h3 {
    color: #202124;
    margin-bottom: 1rem;
}

.feature-card p {
    color: #5f6368;
    line-height: 1.5;
}

.cta-button {
    display: inline-block;
    background-color: #1a73e8;
    color: white;
    padding: 1rem 2rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1rem;
    margin-top: 2rem;
    transition: background-color 0.3s ease;
}

.cta-button:hover {
    background-color: #1557b0;
}

/* Delayed Trains Section Styles */
.delayed-trains {
    background-color: white;
    border-radius: 10px;
    padding: 2rem;
    margin: 2rem 0;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.delayed-trains h2 {
    color: #1a73e8;
    margin-bottom: 1.5rem;
    text-align: center;
}

.delayed-trains-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
}

.train-card {
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1rem;
    border-left: 5px solid;
}

.train-card.slightly {
    background-color: #e8f5e9;
    border-left-color: #4caf50;
}

.train-card.moderately {
    background-color: #fff8e1;
    border-left-color: #ffc107;
}

.train-card.severely {
    background-color: #ffebee;
    border-left-color: #f44336;
}

.train-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.train-info h4 {
    margin: 0;
    font-size: 1.1rem;
}

.delay-time {
    font-weight: bold;
}

.train-detail {
    color: #5f6368;
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.loading {
    text-align: center;
    padding: 2rem;
    color: #5f6368;
}

.error-message {
    text-align: center;
    padding: 2rem;
    color: #f44336;
}

.no-delays {
    text-align: center;
    padding: 2rem;
    color: #4caf50;
    font-weight: bold;
}

.delay-count {
    text-align: center;
    font-size: 1rem;
    color: #f44336;
    font-weight: bold;
    margin-bottom: 1rem;
}

.refresh-button {
    display: block;
    margin: 1rem auto;
    background-color: #1a73e8;
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
}

.refresh-button:hover {
    background-color: #1557b0;
}

.last-updated {
    text-align: center;
    font-size: 0.8rem;
    color: #5f6368;
    margin-top: 1rem;
}

footer {
    background-color: #f8f9fa;
    padding: 2rem 0;
    text-align: center;
    color: #5f6368;
    margin-top: auto;
}

/* Responsive styles */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .container {
        padding: 1rem;
    }

    .delayed-trains-list {
        grid-template-columns: 1fr;
    }
}