.calendar {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 10px;
    margin-top: 2rem;
}

.calendar-header {
    text-align: center;
    font-weight: bold;
    padding: 10px;
    background-color: #3498db;
    color: white;
    border-radius: 5px;
}

.calendar-day {
    min-height: 120px;
    padding: 10px;
    background: #f9f9f9;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 0.9rem;
}

.calendar-day.empty {
    background: #f0f0f0;
    color: #aaa;
}

.calendar-day-number {
    font-weight: bold;
    font-size: 1.2rem;
    margin-bottom: 5px;
    color: #2c3e50;
}

.event {
    background: #e8f5e8;
    padding: 5px;
    margin-bottom: 5px;
    border-radius: 3px;
    font-size: 0.85rem;
    border-left: 3px solid #27ae60;
}

.event:nth-child(even) {
    background: #fff8e1;
    border-left-color: #f39c12;
}

@media (max-width: 768px) {
    .calendar {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .calendar {
        grid-template-columns: 1fr;
    }
}