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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f5f5f5;
}

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

header {
    text-align: center;
    padding: 40px 0;
    background: white;
    border-radius: 8px;
    margin-bottom: 30px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
}

.subtitle {
    color: #666;
    font-size: 1.2em;
}

.hero {
    background: white;
    padding: 40px;
    border-radius: 8px;
    margin-bottom: 30px;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.hero h2 {
    margin-bottom: 20px;
    color: #2c3e50;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.feature {
    background: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.feature h3 {
    margin-bottom: 10px;
    color: #2c3e50;
}

.cta {
    background: white;
    padding: 40px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.btn {
    display: inline-block;
    padding: 15px 30px;
    background: #3498db;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    margin-top: 20px;
    font-weight: bold;
}

.btn:hover {
    background: #2980b9;
}

footer {
    text-align: center;
    padding: 20px;
    color: #666;
    margin-top: 40px;
}

/* Admin styles */
.auth-section {
    background: white;
    padding: 40px;
    border-radius: 8px;
    max-width: 400px;
    margin: 50px auto;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.auth-section h2 {
    margin-bottom: 20px;
    text-align: center;
    color: #2c3e50;
}

.auth-section input {
    width: 100%;
    padding: 12px;
    margin: 10px 0;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}

.auth-section button {
    width: 100%;
    padding: 12px;
    background: #3498db;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    margin-top: 10px;
}

.auth-section button:hover {
    background: #2980b9;
}

.error {
    color: #e74c3c;
    margin-top: 10px;
    text-align: center;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    text-align: center;
}

.stat-card h3 {
    font-size: 0.9em;
    color: #666;
    margin-bottom: 10px;
}

.stat-card p {
    font-size: 2em;
    font-weight: bold;
    color: #2c3e50;
}

.users-section {
    background: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.users-section h2 {
    margin-bottom: 20px;
    color: #2c3e50;
}

.user-card {
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
}

.user-card h3 {
    margin-bottom: 10px;
    color: #2c3e50;
}

.user-card p {
    margin: 5px 0;
    color: #666;
}

.cars-list {
    margin-top: 15px;
    padding-left: 20px;
}

.car-card {
    background: #f9f9f9;
    padding: 15px;
    border-radius: 4px;
    margin: 10px 0;
    border-left: 3px solid #3498db;
}

.car-card h4 {
    margin-bottom: 10px;
    color: #2c3e50;
}

details summary {
    cursor: pointer;
    font-weight: bold;
    margin-top: 15px;
    color: #3498db;
}

details summary:hover {
    color: #2980b9;
}