/* 모바일 캘린더 스타일 */
.mobile-calendar {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
}

/* 빠른 선택 버튼들 */
.quick-select-buttons {
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.quick-select-buttons::-webkit-scrollbar {
    display: none;
}

.quick-btn {
    flex-shrink: 0;
    padding: 8px 16px;
    background: #f3f4f6;
    border: 1px solid #e5e7eb;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    color: #374151;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.quick-btn:hover,
.quick-btn:active {
    background: #3b82f6;
    color: white;
    border-color: #3b82f6;
    transform: scale(0.95);
}

.quick-btn.active {
    background: #3b82f6;
    color: white;
    border-color: #3b82f6;
}

/* 캘린더 헤더 */
.calendar-header {
    padding: 0 8px;
}

.nav-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #6b7280;
    transition: all 0.2s ease;
}

.nav-btn:hover,
.nav-btn:active {
    background: #3b82f6;
    color: white;
    border-color: #3b82f6;
    transform: scale(0.9);
}

.month-year {
    color: #1f2937;
    font-weight: 600;
    min-width: 120px;
    text-align: center;
}

/* 요일 헤더 */
.weekdays {
    margin-bottom: 8px;
}

.weekday {
    text-align: center;
    font-size: 12px;
    font-weight: 600;
    color: #6b7280;
    padding: 8px 4px;
    text-transform: uppercase;
}

.weekday:first-child {
    color: #ef4444; /* 일요일 빨간색 */
}

.weekday:last-child {
    color: #3b82f6; /* 토요일 파란색 */
}

/* 캘린더 그리드 */
.calendar-grid {
    gap: 2px;
}

.calendar-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 500;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.15s ease;
    position: relative;
    background: white;
    border: 1px solid transparent;
    min-height: 40px;
}

.calendar-day:hover {
    background: #eff6ff;
    border-color: #bfdbfe;
    transform: scale(1.05);
}

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

/* 다른 달 날짜 */
.calendar-day.other-month {
    color: #d1d5db;
    background: #f9fafb;
}

.calendar-day.other-month:hover {
    background: #f3f4f6;
    color: #9ca3af;
}

/* 오늘 날짜 */
.calendar-day.today {
    background: #fef3c7;
    color: #92400e;
    font-weight: 700;
    border-color: #f59e0b;
}

.calendar-day.today:hover {
    background: #fde68a;
}

/* 선택된 날짜 */
.calendar-day.selected {
    background: #dbeafe;
    color: #1e40af;
    border-color: #3b82f6;
}

/* 범위 시작/끝 */
.calendar-day.range-start,
.calendar-day.range-end {
    background: #3b82f6;
    color: white;
    font-weight: 700;
}

.calendar-day.range-start:hover,
.calendar-day.range-end:hover {
    background: #2563eb;
}

/* 범위 시작일에 표시 */
.calendar-day.range-start::before {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 6px;
    height: 6px;
    background: #10b981;
    border-radius: 50%;
}

/* 범위 끝일에 표시 */
.calendar-day.range-end::after {
    content: '';
    position: absolute;
    bottom: 2px;
    right: 2px;
    width: 6px;
    height: 6px;
    background: #ef4444;
    border-radius: 50%;
}

/* 선택된 범위 표시 */
.selected-range {
    border: 1px solid #bfdbfe;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.clear-btn {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    transition: all 0.2s ease;
}

.clear-btn:hover {
    background: rgba(59, 130, 246, 0.1);
}

/* 사용법 안내 */
.usage-hint {
    opacity: 0.7;
    line-height: 1.4;
}

/* 터치 디바이스 최적화 */
@media (hover: none) and (pointer: coarse) {
    .calendar-day {
        min-height: 44px; /* 터치 타겟 최소 크기 */
    }
    
    .nav-btn {
        min-width: 44px;
        min-height: 44px;
    }
    
    .quick-btn {
        min-height: 44px;
        padding: 12px 16px;
    }
}

/* 작은 화면 최적화 */
@media (max-width: 375px) {
    .calendar-day {
        font-size: 13px;
        min-height: 36px;
    }
    
    .quick-btn {
        padding: 6px 12px;
        font-size: 13px;
    }
    
    .month-year {
        font-size: 16px;
    }
}

/* 다크 모드 지원 */
@media (prefers-color-scheme: dark) {
    .mobile-calendar {
        color: #f9fafb;
    }
    
    .calendar-day {
        background: #374151;
        color: #f9fafb;
    }
    
    .calendar-day:hover {
        background: #4b5563;
    }
    
    .nav-btn {
        background: #374151;
        color: #f9fafb;
        border-color: #4b5563;
    }
    
    .quick-btn {
        background: #374151;
        color: #f9fafb;
        border-color: #4b5563;
    }
}