/* ============================================
   CALENDAR WIDGET - Lịch tháng đầy đủ
   ============================================ */

.calendar-widget {
    background: white;
    border-radius: var(--radius-sm, 2px);
    padding: 1rem;
}

/* Calendar Header */
.calendar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid rgba(0,0,0,0.08);
}

.calendar-month-year {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary, #212529);
    flex: 1;
    text-align: center;
}

.calendar-nav-btn {
    width: 32px;
    height: 32px;
    border: none;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 1rem;
    padding: 0;
}

.calendar-nav-btn:hover {
    background: var(--color-primary-dark);
    transform: scale(1.05);
}

.calendar-nav-btn:active {
    transform: scale(0.95);
}

/* Weekdays Header */
.calendar-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 0.25rem;
    margin-bottom: 0.5rem;
}

.calendar-weekday {
    text-align: center;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary, #6C757D);
    padding: 0.5rem 0;
}

/* Calendar Days Grid */
.calendar-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 0.25rem;
}

.calendar-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary, #212529);
    background: white;
    border: 1px solid rgba(0,0,0,0.08);
    border-radius: var(--radius-xs, 2px);
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
}

.calendar-day:hover {
    background: var(--color-primary-pastel);
    border-color: var(--color-primary);
    color: var(--color-primary-dark);
}

.calendar-day.other-month {
    color: var(--text-muted, #ADB5BD);
    background: #f8f9fa;
}

.calendar-day.today {
    background: var(--color-info-pastel);
    border-color: var(--color-info);
    color: var(--color-info-dark);
    font-weight: 600;
}

.calendar-day.selected {
    background: #4ba5ff;
    border-color: #4ba5ff;
   
    font-weight: 600;
    color: white;
}

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

.calendar-day.selected.has-plans::after {
    background: white;
}

/* Responsive */
@media (max-width: 768px) {
    .calendar-widget {
        padding: 0.75rem;
    }
    
    .calendar-day {
        font-size: 0.75rem;
    }
    
    .calendar-weekday {
        font-size: 0.6875rem;
    }
}