/* Timeline Controls - Metro style */
.timeline-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--color-bg-primary);
    border-bottom: 2px solid var(--color-border);
    z-index: var(--z-controls);
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    box-shadow: var(--shadow-sm);
}



.view-controls {
    display: flex;
    gap: var(--spacing-sm);
}

/* Filter Controls - now in header */
.filter-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: nowrap;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.filter-group label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    white-space: nowrap;
}

/* Checkbox filter group */
.filter-checkbox-group {
    border-left: 1px solid var(--color-border);
    padding-left: var(--spacing-md);
    margin-left: var(--spacing-sm);
}

.filter-checkbox-group .checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    cursor: pointer;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    white-space: nowrap;
}

.filter-checkbox-group .checkbox-label input[type="checkbox"] {
    width: 14px;
    height: 14px;
    cursor: pointer;
    accent-color: var(--metro-blue);
}

.filter-checkbox-group .checkbox-label span {
    user-select: none;
}

.filter-input {
    padding: 8px 12px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    min-width: 150px;
    font-weight: 500;
}

/* ============================================
   Custom Date Picker - Metro Style
   ============================================ */

.date-filter-group {
    gap: var(--spacing-sm) !important;
}

.date-picker-container {
    position: relative;
}

.date-picker-btn {
    min-width: 140px !important;
    gap: var(--spacing-xs) !important;
}

.date-picker-btn .calendar-icon {
    flex-shrink: 0;
    opacity: 0.7;
}

.date-picker-btn:hover .calendar-icon {
    opacity: 1;
}

.date-picker-btn span:not(.dropdown-arrow):not(.calendar-icon) {
    flex: 1;
    text-align: left;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Date Picker Dropdown */
.date-picker-dropdown {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    width: 280px;
    background-color: var(--color-bg-primary);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-popup);
    padding: var(--spacing-sm);
    animation: datePickerFadeIn 0.15s ease;
}

.date-picker-dropdown.hidden {
    display: none;
}

@keyframes datePickerFadeIn {
    from {
        opacity: 0;
        transform: translateY(-4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Date Picker Header */
.date-picker-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-xs) 0 var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--spacing-sm);
}

.date-nav-btn {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-primary);
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.15s ease;
}

.date-nav-btn:hover {
    background-color: var(--metro-blue);
    border-color: var(--metro-blue);
    color: white;
}

.date-picker-month-year {
    display: flex;
    gap: var(--spacing-xs);
}

.date-select {
    padding: 4px 8px;
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
    font-family: var(--font-family);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
}

.date-select:hover {
    border-color: var(--metro-blue);
}

.date-select:focus {
    outline: none;
    border-color: var(--metro-blue);
}

.date-select option {
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
}

/* Weekday Headers */
.date-picker-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
    margin-bottom: var(--spacing-xs);
}

.date-picker-weekdays span {
    text-align: center;
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--color-text-tertiary);
    padding: var(--spacing-xs) 0;
    text-transform: uppercase;
}

/* Calendar Days Grid */
.date-picker-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
}

.date-picker-day {
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
    font-family: var(--font-family);
    cursor: pointer;
    transition: all 0.15s ease;
}

.date-picker-day:hover:not(.other-month):not(.selected):not(.disabled) {
    background-color: var(--color-bg-secondary);
}

.date-picker-day.other-month {
    color: var(--color-text-tertiary);
    opacity: 0.5;
}

.date-picker-day.today {
    border: 2px solid var(--color-primary);
    font-weight: 600;
}

.date-picker-day.selected {
    background-color: var(--color-primary);
    color: white;
    font-weight: 600;
}

.date-picker-day.selected.today {
    border-color: white;
}

.date-picker-day.disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.date-picker-day.in-range {
    background-color: rgba(88, 166, 255, 0.2);
}

/* Date Picker Footer */
.date-picker-footer {
    display: flex;
    justify-content: space-between;
    padding-top: var(--spacing-sm);
    margin-top: var(--spacing-sm);
    border-top: 1px solid var(--color-border);
}

.date-picker-today,
.date-picker-clear {
    padding: 6px 12px;
    font-size: var(--font-size-xs);
    font-family: var(--font-family);
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.15s ease;
}

.date-picker-today {
    background-color: var(--metro-blue);
    border: none;
    color: white;
}

.date-picker-today:hover {
    background-color: var(--color-accent-hover);
}

.date-picker-clear {
    background-color: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
}

.date-picker-clear:hover {
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
    border-color: var(--color-text-tertiary);
}

.filter-input:focus {
    outline: none;
    border-color: var(--metro-blue);
}

/* Dropdown Controls */
.dropdown-container {
    position: relative;
}

.dropdown-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 8px 14px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    min-width: 180px;
    justify-content: space-between;
    transition: all 0.2s ease;
}

.dropdown-btn:hover {
    background-color: var(--color-bg-secondary);
    border-color: var(--metro-blue);
}

.dropdown-btn:active {
    transform: scale(0.98);
}

.dropdown-arrow {
    font-size: 10px;
    transition: transform 0.2s ease;
}

.dropdown-btn.open .dropdown-arrow {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    min-width: 250px;
    max-height: 350px;
    background-color: var(--color-bg-primary);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 3;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.dropdown-menu.hidden {
    display: none;
}

.dropdown-search {
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
}

.dropdown-search-input {
    width: 100%;
    padding: 6px 10px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
}

.dropdown-search-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.dropdown-checkbox-list {
    overflow-y: auto;
    max-height: 300px;
    padding: var(--spacing-xs);
}

.dropdown-checkbox-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.dropdown-checkbox-item:hover {
    background-color: var(--color-bg-secondary);
}

.dropdown-checkbox-item input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
    flex-shrink: 0;
}

.dropdown-checkbox-item label {
    flex: 1;
    cursor: pointer;
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
    margin: 0;
}

.btn-clear {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 18px;
    line-height: 1;
    padding: 0;
    transition: all 0.2s ease;
}

.btn-clear:hover {
    background-color: var(--color-danger);
    color: white;
}

#fileFilterBtn {
    position: relative;
}

#fileFilterCount {
    display: inline-block;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    margin-left: 4px;
    background-color: var(--color-primary);
    color: white;
    border-radius: 10px;
    font-size: 11px;
    line-height: 20px;
    text-align: center;
}

/* File Filter Popup */
.filter-popup {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3;
}

.filter-popup.hidden {
    display: none;
}

.filter-popup-content {
    background-color: var(--color-bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    min-width: 400px;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.filter-popup-content h3 {
    margin: 0 0 var(--spacing-md) 0;
    font-size: var(--font-size-lg);
    color: var(--color-text-primary);
}

.file-checkbox-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    max-height: 400px;
    overflow-y: auto;
}

.file-checkbox-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: background-color 0.2s ease;
}

.file-checkbox-item:hover {
    background-color: var(--color-bg-secondary);
}

.file-checkbox-item input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.file-checkbox-item label {
    flex: 1;
    cursor: pointer;
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
}

.filter-popup-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
}

/* Responsive adjustments */
@media (max-width: 1200px) {
    .timeline-controls {
        gap: var(--spacing-md);
    }
    
    .filter-controls {
        gap: var(--spacing-md);
    }
    
    .date-picker-btn {
        min-width: 120px !important;
    }
}

@media (max-width: 900px) {
    .timeline-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-controls,
    .view-controls {
        justify-content: center;
    }
    
    .date-filter-group {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .date-picker-dropdown {
        position: fixed;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        z-index: calc(var(--z-popup) + 1);
    }
    
    @keyframes datePickerFadeIn {
        from {
            opacity: 0;
            transform: translate(-50%, -50%) scale(0.95);
        }
        to {
            opacity: 1;
            transform: translate(-50%, -50%) scale(1);
        }
    }
}