* {
    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-color: #f5f5f5;
}

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

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
}

main {
    padding: 2rem 0;
}

.filters {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.filters select {
    flex: 1;
    min-width: 200px;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    background-color: white;
    cursor: pointer;
    transition: border-color 0.3s;
}

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

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

.loading {
    text-align: center;
    padding: 3rem;
    font-size: 1.2rem;
    color: #666;
}

.error {
    background-color: #fee;
    border: 1px solid #fcc;
    color: #c33;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.sessions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.session-card {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.session-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

.session-header {
    margin-bottom: 1rem;
}

.session-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: #667eea;
    margin-bottom: 0.5rem;
}

.session-club {
    font-size: 0.95rem;
    color: #666;
}

.session-detail {
    display: flex;
    align-items: center;
    margin: 0.5rem 0;
    font-size: 0.95rem;
}

.session-detail strong {
    min-width: 80px;
    color: #555;
}

.session-time {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 0.75rem;
    border-radius: 8px;
    margin: 1rem 0;
    text-align: center;
}

.session-venue {
    background-color: #f8f9fa;
    padding: 0.75rem;
    border-radius: 8px;
    margin-top: 1rem;
    font-size: 0.9rem;
}

.session-venue strong {
    display: block;
    margin-bottom: 0.25rem;
    color: #333;
}

.session-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: #667eea;
    text-align: center;
    margin: 1rem 0;
}

.session-capacity {
    background-color: #e8f5e9;
    color: #2e7d32;
    padding: 0.5rem;
    border-radius: 6px;
    text-align: center;
    font-size: 0.9rem;
}

.session-capacity.full {
    background-color: #ffebee;
    color: #c62828;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-right: 0.5rem;
}

.badge-active {
    background-color: #e8f5e9;
    color: #2e7d32;
}

.badge-inactive {
    background-color: #fafafa;
    color: #757575;
}

footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-top: 3rem;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

    .sessions-grid {
        grid-template-columns: 1fr;
    }

    .filters {
        flex-direction: column;
    }

    .filters select {
        width: 100%;
    }
}