/* Active tab highlighting */
.menu-item a[href*="schedule"] {
    background-color: var(--hover-color);
    color: var(--text-color);
}
.menu-item a[href*="schedule"] .material-icons {
    color: var(--accent-color);
}

.calendar-container {
    background: white;
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    margin: 2rem auto;
    max-width: 1000px;
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.calendar-nav {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: background-color 0.3s;
}

.calendar-nav:hover {
    background-color: var(--hover-color);
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 0.5rem;
}

.calendar-day {
    aspect-ratio: 1;
    padding: 0.5rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}

.calendar-day:hover {
    z-index: 2;
    background: var(--hover-color);
    transform: translateY(-2px);
}

.calendar-day.has-event {
    background: #e8f5e9;
    border: 2px solid #4CAF50;
}

.calendar-day .date {
    font-weight: bold;
    margin-bottom: 0.25rem;
}

.event-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-color);
    position: absolute;
    bottom: 4px;
    right: 4px;
}

.event-popup {
    display: none;
    position: absolute;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    padding: 1rem;
    width: 250px;
    z-index: 1000;
    bottom: 120%;
    left: 50%;
    transform: translateX(-50%);
    animation: fadeInUp 0.3s ease;
}

.event-popup::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-top: 8px solid white;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translate(-50%, 10px);
    }
    to {
        opacity: 1;
        transform: translate(-50%, 0);
    }
}

.calendar-day:hover .event-popup {
    display: block;
}

/* Keep popup visible when calendar day is clicked/pinned */
.calendar-day.popup-pinned .event-popup {
    display: block;
    z-index: 1000;
}

/* Add visual indicator that popup is pinned */
.calendar-day.popup-pinned {
    position: relative;
    z-index: 999;
}

.event-title {
    font-weight: bold;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.event-time {
    color: #666;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.day-header {
    text-align: center;
    font-weight: bold;
    padding: 0.5rem;
    background: var(--hover-color);
    border-radius: 4px;
    margin-bottom: 0.5rem;
    color: #000;
    position: relative;
    z-index: 1;
}

/* Responsive Design */
@media screen and (max-width: 768px) {
    .calendar-container {
        padding: 1rem;
        margin: 1rem auto;
    }

    .calendar-header h2 {
        font-size: 1.2rem;
    }

    .calendar-grid {
        gap: 0.25rem;
    }

    .calendar-day {
        padding: 0.25rem;
        font-size: 0.85rem;
    }

    .day-header {
        padding: 0.25rem;
        font-size: 0.75rem;
    }

    .event-popup {
        width: 200px;
        padding: 0.75rem;
        font-size: 0.85rem;
    }

    .calendar-nav {
        padding: 0.25rem;
    }

    .calendar-nav .material-icons {
        font-size: 20px;
    }
}

@media screen and (max-width: 480px) {
    .calendar-container {
        padding: 0.5rem;
        margin: 0.5rem auto;
    }

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

    .calendar-header h2 {
        font-size: 1rem;
    }

    .calendar-grid {
        gap: 0.15rem;
    }

    .calendar-day {
        padding: 0.15rem;
        font-size: 0.75rem;
        aspect-ratio: 1;
    }

    .day-header {
        padding: 0.15rem;
        font-size: 0.65rem;
    }

    .event-popup {
        width: 150px;
        padding: 0.5rem;
        font-size: 0.75rem;
        left: 0;
        transform: none;
        right: auto;
    }

    .event-popup::after {
        left: 20px;
        transform: none;
    }

    .event-dot {
        width: 6px;
        height: 6px;
    }

    .calendar-nav .material-icons {
        font-size: 18px;
    }
}

@media screen and (min-width: 769px) and (max-width: 1024px) {
    .calendar-container {
        padding: 1.5rem;
        max-width: 800px;
    }

    .calendar-day {
        padding: 0.4rem;
    }
}