/**
 * Widget Palette
 * Collapsible sidebar with draggable widget cards
 */

/* Main Container */
.widget-palette {
    position: fixed;
    top: 0;
    bottom: 0;
    z-index: var(--pro-z-dropdown, 1000);
    display: flex;
    pointer-events: none;
}

.widget-palette--left {
    left: 0;
}

.widget-palette--right {
    right: 0;
    flex-direction: row-reverse;
}

/* Toggle Button (FAB) */
.widget-palette__toggle {
    pointer-events: auto;
    width: 48px;
    height: 48px;
    margin: var(--pro-spacing-md, 1rem);
    background: var(--pro-primary, #007bff);
    color: var(--pro-primary-text, #fff);
    border: none;
    border-radius: 50%;
    font-size: 1.25rem;
    cursor: pointer;
    box-shadow: var(--pro-shadow-md, 0 4px 6px -1px rgba(0, 0, 0, 0.1));
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.widget-palette__toggle:hover {
    transform: scale(1.05);
    box-shadow: var(--pro-shadow-lg, 0 10px 15px -3px rgba(0, 0, 0, 0.1));
}

.widget-palette__toggle:focus-visible {
    outline: var(--focus-ring-width) var(--focus-ring-style) var(--focus-ring-color);
    outline-offset: var(--focus-ring-offset);
    box-shadow: var(--focus-ring-shadow);
}

.widget-palette:not(.widget-palette--collapsed) .widget-palette__toggle {
    display: none;
}

/* Panel */
.widget-palette__panel {
    pointer-events: auto;
    width: 280px;
    height: 100%;
    background: var(--pro-surface, #fff);
    border-right: 1px solid var(--pro-border, #dee2e6);
    box-shadow: var(--pro-shadow-lg, 0 10px 15px -3px rgba(0, 0, 0, 0.1));
    display: flex;
    flex-direction: column;
    transform: translateX(0);
    transition: transform 0.3s ease;
}

.widget-palette--right .widget-palette__panel {
    border-right: none;
    border-left: 1px solid var(--pro-border, #dee2e6);
}

.widget-palette--collapsed .widget-palette__panel {
    transform: translateX(-100%);
    visibility: hidden;
    pointer-events: none;
}

.widget-palette--right.widget-palette--collapsed .widget-palette__panel {
    transform: translateX(100%);
    visibility: hidden;
    pointer-events: none;
}

/* Header */
.widget-palette__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--pro-spacing-md, 1rem);
    border-bottom: 1px solid var(--pro-border, #dee2e6);
    flex-shrink: 0;
}

.widget-palette__title {
    font-weight: 600;
    font-size: 1rem;
    color: var(--pro-text, #212529);
}

.widget-palette__close {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--pro-text-muted, #6c757d);
    padding: var(--pro-spacing-xs, 0.25rem);
    border-radius: var(--pro-radius-sm, 0.25rem);
    transition: color 0.15s ease, background 0.15s ease;
    line-height: 1;
}

.widget-palette__close:hover {
    color: var(--pro-text, #212529);
    background: var(--pro-hover, rgba(0, 0, 0, 0.05));
}

.widget-palette__close:focus-visible {
    outline: var(--focus-ring-width) var(--focus-ring-style) var(--focus-ring-color);
    outline-offset: var(--focus-ring-offset);
    box-shadow: var(--focus-ring-shadow);
}

/* Search */
.widget-palette__search {
    padding: var(--pro-spacing-sm, 0.5rem) var(--pro-spacing-md, 1rem);
    border-bottom: 1px solid var(--pro-border, #dee2e6);
    flex-shrink: 0;
}

.widget-palette__search-input {
    width: 100%;
    padding: var(--pro-spacing-sm, 0.5rem);
    border: 1px solid var(--pro-border, #dee2e6);
    border-radius: var(--pro-radius-sm, 0.25rem);
    background: var(--pro-input-bg, var(--pro-surface, #fff));
    color: var(--pro-text, #212529);
    font-size: 0.875rem;
}

.widget-palette__search-input:focus-visible {
    border-color: var(--pro-primary, #007bff);
    outline: var(--focus-ring-width) var(--focus-ring-style) var(--focus-ring-color);
    outline-offset: var(--focus-ring-offset);
    box-shadow: var(--focus-ring-shadow);
}

.widget-palette__search-input::placeholder {
    color: var(--pro-text-muted, #6c757d);
}

/* Content */
.widget-palette__content {
    flex: 1;
    overflow-y: auto;
    padding: var(--pro-spacing-sm, 0.5rem) 0;
}

.widget-palette__empty {
    text-align: center;
    color: var(--pro-text-muted, #6c757d);
    padding: var(--pro-spacing-xl, 2rem);
    font-size: 0.875rem;
}

/* Category */
.widget-palette__category {
    margin-bottom: var(--pro-spacing-xs, 0.25rem);
}

.widget-palette__category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--pro-spacing-sm, 0.5rem) var(--pro-spacing-md, 1rem);
    cursor: pointer;
    user-select: none;
    transition: background 0.15s ease;
}

.widget-palette__category-header:hover {
    background: var(--pro-hover, rgba(0, 0, 0, 0.05));
}

.widget-palette__category-header:focus-visible {
    outline: var(--focus-ring-width) var(--focus-ring-style) var(--focus-ring-color);
    outline-offset: var(--focus-ring-offset-inset);
    box-shadow: var(--focus-ring-shadow-inset);
    background: var(--pro-hover, rgba(0, 0, 0, 0.05));
}

.widget-palette__category-title {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--pro-text-muted, #6c757d);
}

.widget-palette__category-toggle {
    font-size: 0.625rem;
    color: var(--pro-text-muted, #6c757d);
    transition: transform 0.2s ease;
}

.widget-palette__category--collapsed .widget-palette__category-toggle {
    transform: rotate(-90deg);
}

.widget-palette__category-content {
    padding: var(--pro-spacing-xs, 0.25rem) var(--pro-spacing-md, 1rem);
    display: flex;
    flex-direction: column;
    gap: var(--pro-spacing-xs, 0.25rem);
}

.widget-palette__category--collapsed .widget-palette__category-content {
    display: none;
}

/* Card */
.widget-palette__card {
    display: flex;
    align-items: center;
    gap: var(--pro-spacing-sm, 0.5rem);
    padding: var(--pro-spacing-sm, 0.5rem);
    background: var(--pro-card-bg, var(--pro-surface, #fff));
    border: 1px solid var(--pro-border, #dee2e6);
    border-radius: var(--pro-radius-sm, 0.25rem);
    cursor: grab;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.widget-palette__card:hover {
    border-color: var(--pro-primary-light, var(--pro-primary, #007bff));
    box-shadow: var(--pro-shadow-sm, 0 1px 2px 0 rgba(0, 0, 0, 0.05));
    transform: translateX(2px);
}

.widget-palette__card:focus-visible {
    border-color: var(--pro-primary, #007bff);
    outline: var(--focus-ring-width) var(--focus-ring-style) var(--focus-ring-color);
    outline-offset: var(--focus-ring-offset);
    box-shadow: var(--focus-ring-shadow);
}

.widget-palette__card:active {
    cursor: grabbing;
}

.widget-palette__card--dragging {
    opacity: 0.5;
}

.widget-palette__card-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--pro-primary-bg, rgba(0, 123, 255, 0.1));
    color: var(--pro-primary, #007bff);
    border-radius: var(--pro-radius-sm, 0.25rem);
    flex-shrink: 0;
    font-size: 0.875rem;
}

.widget-palette__card-info {
    flex: 1;
    min-width: 0;
}

.widget-palette__card-name {
    font-weight: 500;
    font-size: 0.875rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--pro-text, #212529);
}

.widget-palette__card-desc {
    font-size: 0.75rem;
    color: var(--pro-text-muted, #6c757d);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Drag Proxy */
.widget-palette__drag-proxy {
    position: fixed;
    padding: var(--pro-spacing-sm, 0.5rem) var(--pro-spacing-md, 1rem);
    background: var(--pro-primary, #007bff);
    color: var(--pro-primary-text, #fff);
    border-radius: var(--pro-radius-sm, 0.25rem);
    font-size: 0.875rem;
    font-weight: 500;
    box-shadow: var(--pro-shadow-lg, 0 10px 15px -3px rgba(0, 0, 0, 0.1));
    pointer-events: none;
    z-index: var(--pro-z-tooltip, 1100);
    white-space: nowrap;
}

.widget-palette__drag-proxy i {
    margin-right: var(--pro-spacing-xs, 0.25rem);
}

/* Drop Zone Active State on Grid */
.widget-palette__drop-zone--active {
    outline: 2px dashed var(--pro-primary, #007bff);
    outline-offset: -2px;
    background: var(--pro-primary-bg, rgba(0, 123, 255, 0.05));
}

/* Responsive */
@media (max-width: 576px) {
    .widget-palette__panel {
        width: 100%;
        max-width: 300px;
    }
    
    .widget-palette__toggle {
        width: 40px;
        height: 40px;
        margin: var(--pro-spacing-sm, 0.5rem);
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .widget-palette__panel,
    .widget-palette__toggle,
    .widget-palette__card,
    .widget-palette__category-toggle {
        transition: none;
    }
}

/* Theme attribute dark mode support */
[data-theme="dark"] .widget-palette__panel,
.dark .widget-palette__panel {
    background: var(--pro-bg-secondary, var(--pro-surface, #1e1e1e));
    border-color: var(--pro-border, #404040);
}

[data-theme="dark"] .widget-palette__header,
.dark .widget-palette__header {
    border-color: var(--pro-border, #404040);
}

[data-theme="dark"] .widget-palette__title,
.dark .widget-palette__title {
    color: var(--pro-text-primary, #e0e0e0);
}

[data-theme="dark"] .widget-palette__close,
.dark .widget-palette__close {
    color: var(--pro-text-secondary, #a0a0a0);
}

[data-theme="dark"] .widget-palette__close:hover,
.dark .widget-palette__close:hover {
    color: var(--pro-text-primary, #e0e0e0);
    background: var(--pro-hover, rgba(255, 255, 255, 0.1));
}

[data-theme="dark"] .widget-palette__search,
.dark .widget-palette__search {
    border-color: var(--pro-border, #404040);
}

[data-theme="dark"] .widget-palette__search-input,
.dark .widget-palette__search-input {
    background: var(--pro-bg-tertiary, #2d2d2d);
    border-color: var(--pro-border, #404040);
    color: var(--pro-text-primary, #e0e0e0);
}

[data-theme="dark"] .widget-palette__category-header,
.dark .widget-palette__category-header {
    color: var(--pro-text-primary, #e0e0e0);
}

[data-theme="dark"] .widget-palette__category-header:hover,
.dark .widget-palette__category-header:hover {
    background: var(--pro-hover, rgba(255, 255, 255, 0.1));
}

[data-theme="dark"] .widget-palette__category-title,
.dark .widget-palette__category-title {
    color: var(--pro-text-secondary, #a0a0a0);
}

[data-theme="dark"] .widget-palette__card,
.dark .widget-palette__card {
    background: var(--pro-bg-tertiary, var(--pro-card-bg, #2d2d2d));
    border-color: var(--pro-border, #404040);
}

[data-theme="dark"] .widget-palette__card:hover,
.dark .widget-palette__card:hover {
    border-color: var(--pro-primary, #007bff);
}

[data-theme="dark"] .widget-palette__card-icon,
.dark .widget-palette__card-icon {
    background: var(--pro-primary-bg, rgba(0, 123, 255, 0.15));
}

[data-theme="dark"] .widget-palette__card-name,
.dark .widget-palette__card-name {
    color: var(--pro-text-primary, #e0e0e0);
}

[data-theme="dark"] .widget-palette__card-desc,
.dark .widget-palette__card-desc {
    color: var(--pro-text-secondary, #a0a0a0);
}

[data-theme="dark"] .widget-palette__empty,
.dark .widget-palette__empty {
    color: var(--pro-text-secondary, #a0a0a0);
}

/* High contrast mode */
@media (prefers-contrast: high) {
    .widget-palette__toggle:focus-visible,
    .widget-palette__close:focus-visible,
    .widget-palette__search-input:focus-visible,
    .widget-palette__category-header:focus-visible,
    .widget-palette__card:focus-visible {
        outline: var(--focus-ring-width) var(--focus-ring-style) var(--focus-ring-color);
        outline-offset: var(--focus-ring-offset);
        box-shadow: var(--focus-ring-shadow);
    }

    .widget-palette__drop-zone--active {
        outline-width: 3px;
    }
}