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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: #ffffff;
    min-height: 100vh;
    padding: 20px;
}

#app {
    max-width: 1200px;
    margin: 0 auto;
}

header {
    text-align: center;
    color: #333;
    margin-bottom: 40px;
    padding: 30px 0;
    border-bottom: 2px solid #f0f0f0;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: #1a1a1a;
}

header p {
    font-size: 1.1rem;
    color: #666;
}

main {
    background: white;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    border: 1px solid #e0e0e0;
}

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

.filter-group {
    display: flex;
    flex-direction: column;
}

.filter-group label {
    font-weight: 600;
    margin-bottom: 8px;
    color: #333;
    font-size: 0.9rem;
}

.filter-group select {
    padding: 10px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    font-size: 1rem;
    background: white;
    cursor: pointer;
    transition: border-color 0.3s;
}

.filter-group select:hover {
    border-color: #667eea;
}

.filter-group select:focus {
    outline: none;
    border-color: #667eea;
}

.btn-primary, .btn-secondary {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 24px;
}

.btn-primary {
    background: #4285f4;
    color: white;
}

.btn-primary:hover {
    background: #357ae8;
    box-shadow: 0 2px 8px rgba(66, 133, 244, 0.3);
}

.btn-secondary {
    background: #f5f5f5;
    color: #666;
}

.btn-secondary:hover {
    background: #e0e0e0;
}

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

.stat-card {
    background: #f8f9fa;
    color: #333;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    border: 1px solid #e0e0e0;
}

.stat-card h3 {
    font-size: 0.9rem;
    margin-bottom: 10px;
    opacity: 0.9;
}

.stat-value {
    font-size: 1.8rem;
    font-weight: bold;
}

.loading {
    text-align: center;
    padding: 40px;
    color: #666;
    font-size: 1.1rem;
}

.results-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

thead {
    background: #f5f5f5;
}

th {
    padding: 12px;
    text-align: left;
    font-weight: 600;
    color: #333;
    border-bottom: 2px solid #e0e0e0;
}

td {
    padding: 12px;
    border-bottom: 1px solid #f0f0f0;
}

tbody tr:hover {
    background: #f9f9f9;
}

.no-results {
    text-align: center;
    padding: 40px;
    color: #999;
    font-size: 1.1rem;
}

footer {
    text-align: center;
    color: #666;
    margin-top: 30px;
    font-size: 0.9rem;
    padding: 20px 0;
    border-top: 1px solid #f0f0f0;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 1.8rem;
    }

    .search-container {
        grid-template-columns: 1fr;
    }

    main {
        padding: 20px;
    }

    .stats-container {
        grid-template-columns: repeat(2, 1fr);
    }

    .stat-value {
        font-size: 1.4rem;
    }
}