/* ============================================
   CALENDAR.CSS - Calendar Component Styles
   The STAR of the Personnel Leave Tracking System
   ============================================ */

/* ============================================
   CALENDAR CONTAINER
   ============================================ */

.calendar-container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    min-height: calc(100vh - 80px);
    display: flex;
    flex-direction: column;
    animation: fadeIn var(--transition-normal) ease;
}

/* ============================================
   CALENDAR HEADER
   ============================================ */

.calendar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
    margin-bottom: 20px;
}

.calendar-nav {
    display: flex;
    align-items: center;
    gap: 20px;
}

.calendar-nav-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-normal);
    font-size: 1.125rem;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.calendar-nav-btn:hover {
    color: var(--accent-primary);
    border-color: var(--border-glow);
    transform: scale(1.05);
    box-shadow: var(--shadow-glow);
}

.calendar-title {
    font-size: 1.75rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    user-select: none;
}

.calendar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* ============================================
   CALENDAR WEEKDAYS
   ============================================ */

.calendar-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 8px;
    margin-bottom: 8px;
}

.calendar-weekday {
    text-align: center;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 8px 0;
}

.calendar-weekday.weekend {
    color: var(--accent-primary);
}

/* ============================================
   CALENDAR GRID
   ============================================ */

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 8px;
    flex: 1;
}

/* ============================================
   CALENDAR DAY
   ============================================ */

.calendar-day {
    min-height: 100px;
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 10px;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    display: flex;
    flex-direction: column;
}

.calendar-day:hover {
    border-color: var(--border-glow);
    box-shadow: var(--shadow-glow);
    transform: scale(1.02);
    z-index: 2;
}

.calendar-day.today {
    border-color: var(--accent-primary);
    box-shadow: 0 0 15px rgba(108, 99, 255, 0.2), 0 0 30px rgba(108, 99, 255, 0.1);
}

.calendar-day.today .day-number {
    background: var(--accent-gradient);
    color: #ffffff;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-weight: 600;
}

.calendar-day.other-month {
    opacity: 0.3;
    pointer-events: none;
}

.calendar-day.weekend {
    background: rgba(108, 99, 255, 0.03);
}

/* ============================================
   DAY NUMBER
   ============================================ */

.day-number {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 6px;
}

/* ============================================
   LEAVE BADGES
   ============================================ */

.leave-badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: 100px;
    font-size: 0.625rem;
    font-weight: 600;
    white-space: nowrap;
    margin-top: 2px;
}

.calendar-day.leave-full .leave-badge {
    background: rgba(108, 99, 255, 0.15);
    color: var(--accent-primary);
}

.calendar-day.leave-half .leave-badge {
    background: rgba(255, 171, 0, 0.15);
    color: var(--warning);
}

.calendar-day.leave-pending {
    animation: glow 2s ease-in-out infinite;
}

.calendar-day.leave-pending .leave-badge {
    background: rgba(68, 138, 255, 0.15);
    color: var(--info);
}

.calendar-day.worked-day {
    background: rgba(255, 255, 255, 0.02);
    cursor: default;
    border-color: rgba(255, 255, 255, 0.05);
}

.calendar-day.worked-day:hover {
    transform: none;
    box-shadow: none;
    border-color: rgba(255, 255, 255, 0.05);
}

.calendar-day.worked-day .worked-badge {
    background: rgba(0, 230, 118, 0.1);
    color: var(--success);
    font-size: 0.625rem;
    font-weight: 500;
    padding: 2px 8px;
    border-radius: 100px;
    display: inline-flex;
    align-items: center;
    white-space: nowrap;
    margin-top: 2px;
    border: 1px solid rgba(0, 230, 118, 0.2);
}

/* ============================================
   DAY ACTIONS
   ============================================ */

.day-actions {
    position: absolute;
    bottom: 8px;
    right: 8px;
    display: flex;
    gap: 4px;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.calendar-day:hover .day-actions {
    opacity: 1;
}

.day-action-btn {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--accent-gradient);
    color: #ffffff;
    border: none;
    cursor: pointer;
    font-size: 0.75rem;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.day-action-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

/* ============================================
   LEAVE POPUP
   ============================================ */

.leave-popup {
    position: fixed;
    background: var(--bg-secondary);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    min-width: 300px;
    box-shadow: var(--shadow-lg);
    z-index: 500;
    animation: fadeIn var(--transition-fast) ease, slideUp var(--transition-normal) ease;
}

.leave-popup-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.leave-popup-date {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

/* ============================================
   LEAVE TYPE OPTIONS
   ============================================ */

.leave-type-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

.leave-type-option {
    display: flex;
    align-items: center;
    gap: 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.leave-type-option:hover {
    border-color: var(--border-glow);
    background: var(--bg-glass);
}

.leave-type-option.selected {
    border-color: var(--accent-primary);
    background: rgba(108, 99, 255, 0.1);
}

.leave-type-radio {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    flex-shrink: 0;
    position: relative;
    transition: all var(--transition-fast);
}

.leave-type-option.selected .leave-type-radio {
    border-color: var(--accent-primary);
}

.leave-type-option.selected .leave-type-radio::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-primary);
}

.leave-type-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

/* ============================================
   LEAVE POPUP ACTIONS
   ============================================ */

.leave-popup-actions {
    display: flex;
    gap: 12px;
}

.leave-popup-actions .btn {
    flex: 1;
}

/* ============================================
   LEAVE CANCEL INFO
   ============================================ */

.leave-cancel-info {
    display: flex;
    flex-direction: column;
    gap: 8px;
    background: var(--bg-glass);
    border-radius: var(--radius-sm);
    padding: 16px;
    margin-bottom: 16px;
}

/* ============================================
   CALENDAR LEGEND
   ============================================ */

.calendar-legend {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    padding: 16px 0;
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.legend-dot.full {
    background: var(--accent-primary);
}

.legend-dot.half {
    background: var(--warning);
}

.legend-dot.pending {
    background: var(--info);
}

.legend-dot.today {
    background: var(--accent-primary);
}

/* ============================================
   MONTH TRANSITION ANIMATIONS
   ============================================ */

@keyframes slide-out-left {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(-40px);
    }
}

@keyframes slide-out-right {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(40px);
    }
}

@keyframes slide-in-left {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slide-in-right {
    from {
        opacity: 0;
        transform: translateX(-40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.calendar-grid.slide-out-left {
    animation: slide-out-left 0.25s ease forwards;
}

.calendar-grid.slide-out-right {
    animation: slide-out-right 0.25s ease forwards;
}

.calendar-grid.slide-in-left {
    animation: slide-in-left 0.3s ease forwards;
}

.calendar-grid.slide-in-right {
    animation: slide-in-right 0.3s ease forwards;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 1024px) {
    .calendar-day {
        min-height: 80px;
        padding: 8px;
    }

    .calendar-title {
        font-size: 1.5rem;
    }
}

@media (max-width: 768px) {
    .calendar-container {
        padding: 12px;
    }

    .calendar-header {
        flex-wrap: wrap;
        gap: 12px;
        padding: 12px 0;
    }

    .calendar-day {
        min-height: 60px;
        padding: 6px;
        border-radius: 6px;
    }

    .day-number {
        font-size: 0.75rem;
    }

    .leave-badge {
        font-size: 0.5625rem;
        padding: 1px 5px;
    }

    .calendar-weekday {
        font-size: 0.625rem;
        letter-spacing: 0.5px;
    }

    .calendar-weekdays {
        gap: 4px;
    }

    .calendar-grid {
        gap: 4px;
    }

    .calendar-nav {
        gap: 12px;
    }

    .calendar-nav-btn {
        width: 38px;
        height: 38px;
    }

    .calendar-title {
        font-size: 1.25rem;
    }

    .leave-popup {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        top: auto;
        border-radius: var(--radius-xl) var(--radius-xl) 0 0;
        min-width: 100%;
        max-height: 80vh;
        overflow-y: auto;
        animation: slideUp var(--transition-normal) ease;
    }

    .calendar-legend {
        gap: 16px;
    }

    .legend-item {
        font-size: 0.75rem;
    }
}

@media (max-width: 480px) {
    .calendar-day {
        min-height: 48px;
        padding: 4px;
    }

    .day-number {
        font-size: 0.6875rem;
    }

    .calendar-day.today .day-number {
        width: 22px;
        height: 22px;
        font-size: 0.625rem;
    }

    .leave-badge {
        font-size: 0.5rem;
        padding: 1px 4px;
    }

    .day-actions {
        display: none;
    }

    .calendar-actions {
        gap: 8px;
    }

    .calendar-legend {
        gap: 12px;
        padding: 12px 0;
    }
}