body {
    font-family: Arial, sans-serif;
    background: #f4f6f8;
    margin: 0;
}

header {
    background: #1a2e5a;
    color: white;
    padding: 20px;
    text-align: center;
}

header input, header select {
    padding: 10px;
    margin: 10px;
    border-radius: 6px;
    border: none;
}

.event-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    padding: 30px;
}

.event-card {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.event-card h3 {
    color: #1a2e5a;
}

.category {
    font-size: 12px;
    font-weight: bold;
    color: #f3a92a;
}