.calendar-container {
    background: var(--card-background);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius);
    padding: 20px;
    margin-top: 20px;
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.calendar-header button {
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 5px 10px;
    border-radius: var(--border-radius);
    transition: var(--transition-speed);
}

.calendar-header button:hover {
    background: rgba(255, 255, 255, 0.1);
}

.calendar-header h3 {
    font-size: 1.2rem;
    font-weight: 500;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 5px;
}

.calendar-weekday {
    text-align: center;
    padding: 10px;
    font-weight: 500;
    color: var(--text-secondary);
}

.calendar-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: 50%;
    transition: var(--transition-speed);
    position: relative;
}

.calendar-day:hover {
    background: rgba(255, 255, 255, 0.1);
}

.calendar-day.selected {
    background: var(--primary-color);
    color: white;
}

.calendar-day.has-event::after {
    content: '';
    position: absolute;
    bottom: 5px;
    width: 4px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 50%;
}

.calendar-day.prev-month,
.calendar-day.next-month {
    color: var(--text-secondary);
    opacity: 0.5;
}

.calendar-day.today {
    background: linear-gradient(45deg, #bef7e3, transparent);
}

.has-course {
    background: linear-gradient(45deg, #c5bef7, transparent);
}

.day-events {
    margin-top: 20px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
}

.day-events h4 {
    margin-bottom: 15px;
    color: var(--text-secondary);
}

.event-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
    margin-bottom: 10px;
    transition: var(--transition-speed);
}

.event-item:hover {
    transform: translateX(5px);
    background: rgba(255, 255, 255, 0.1);
}

.event-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.event-info h5 {
    margin-bottom: 5px;
    font-size: 1rem;
}

.event-info p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.no-events {
    text-align: center;
    color: var(--text-secondary);
    padding: 20px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .calendar-grid {
        gap: 2px;
    }

    .calendar-day {
        font-size: 0.9rem;
    }

    .event-item {
        padding: 10px;
    }
}