/**
 * Admin Asset Picker Component
 * 
 * Modern modal design with backdrop, improved search with filter sidebar,
 * grid/list view options, and drag & drop support.
 * Uses BEM naming convention and design system tokens.
 */

.livecomponent-admin-asset-picker {
    position: relative;
}

/* Picker Button */
.livecomponent-admin-asset-picker__button {
    padding: var(--space-sm, 0.75rem) var(--space-md, 1rem);
    border: 1px solid var(--border-light, oklch(75% 0.02 280));
    border-radius: 6px;
    background: var(--bg-secondary, oklch(95% 0.01 280));
    color: var(--text, oklch(20% 0.02 280));
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs, 0.5rem);
}

.livecomponent-admin-asset-picker__button:hover {
    background: var(--bg-tertiary, oklch(92% 0.01 280));
    border-color: var(--accent-primary, oklch(60% 0.2 280));
    transform: translateY(-1px);
    box-shadow: 0 2px 4px oklch(0% 0 0 / 0.1);
}

/* Modal Backdrop */
.livecomponent-admin-asset-picker__backdrop {
    position: fixed;
    inset: 0;
    background: oklch(0% 0 0 / 0.5);
    backdrop-filter: blur(4px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg, 1.5rem);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.livecomponent-admin-asset-picker__backdrop--visible {
    opacity: 1;
    pointer-events: auto;
}

/* Modal Content */
.livecomponent-admin-asset-picker__modal {
    background: var(--bg, oklch(100% 0 0));
    border-radius: 12px;
    padding: var(--space-xl, 2rem);
    max-width: 90vw;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 8px 32px oklch(0% 0 0 / 0.3);
    transform: scale(0.95);
    transition: transform 0.3s ease;
    width: 100%;
    max-width: 1200px;
}

.livecomponent-admin-asset-picker__backdrop--visible .livecomponent-admin-asset-picker__modal {
    transform: scale(1);
}

/* Modal Header */
.livecomponent-admin-asset-picker__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg, 1.5rem);
    padding-bottom: var(--space-md, 1rem);
    border-bottom: 2px solid var(--border-light, oklch(75% 0.02 280));
}

.livecomponent-admin-asset-picker__title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text, oklch(20% 0.02 280));
    margin: 0;
}

.livecomponent-admin-asset-picker__close {
    padding: var(--space-xs, 0.5rem);
    border: none;
    background: transparent;
    color: var(--muted, oklch(50% 0.01 280));
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
}

.livecomponent-admin-asset-picker__close:hover {
    background: var(--bg-secondary, oklch(95% 0.01 280));
    color: var(--text, oklch(20% 0.02 280));
}

/* Search and Filters */
.livecomponent-admin-asset-picker__search-container {
    display: flex;
    gap: var(--space-md, 1rem);
    margin-bottom: var(--space-lg, 1.5rem);
}

.livecomponent-admin-asset-picker__search {
    flex: 1;
    position: relative;
}

.livecomponent-admin-asset-picker__search-input {
    width: 100%;
    padding: var(--space-sm, 0.75rem) var(--space-md, 1rem);
    padding-left: 2.5rem;
    border: 1px solid var(--border-light, oklch(75% 0.02 280));
    border-radius: 6px;
    background: var(--bg, oklch(100% 0 0));
    color: var(--text, oklch(20% 0.02 280));
    font-size: 0.875rem;
    transition: all 0.2s ease;
}

.livecomponent-admin-asset-picker__search-input:focus {
    outline: none;
    border-color: var(--accent-primary, oklch(60% 0.2 280));
    box-shadow: 0 0 0 3px oklch(60% 0.2 280 / 0.1);
}

.livecomponent-admin-asset-picker__search-icon {
    position: absolute;
    left: var(--space-sm, 0.75rem);
    top: 50%;
    transform: translateY(-50%);
    color: var(--muted, oklch(50% 0.01 280));
    width: 16px;
    height: 16px;
}

/* View Toggle */
.livecomponent-admin-asset-picker__view-toggle {
    display: flex;
    gap: var(--space-xs, 0.5rem);
    background: var(--bg-secondary, oklch(95% 0.01 280));
    border: 1px solid var(--border-light, oklch(75% 0.02 280));
    border-radius: 6px;
    padding: 2px;
}

.livecomponent-admin-asset-picker__view-toggle-button {
    padding: var(--space-xs, 0.5rem) var(--space-sm, 0.75rem);
    border: none;
    background: transparent;
    color: var(--muted, oklch(50% 0.01 280));
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.2s ease;
    font-size: 0.875rem;
}

.livecomponent-admin-asset-picker__view-toggle-button:hover {
    background: var(--bg, oklch(100% 0 0));
    color: var(--text, oklch(20% 0.02 280));
}

.livecomponent-admin-asset-picker__view-toggle-button--active {
    background: var(--accent-primary, oklch(60% 0.2 280));
    color: var(--bg, oklch(100% 0 0));
}

/* Main Content Area */
.livecomponent-admin-asset-picker__content {
    display: flex;
    gap: var(--space-lg, 1.5rem);
    flex: 1;
    overflow: hidden;
}

/* Filters Sidebar */
.livecomponent-admin-asset-picker__filters {
    min-width: 250px;
    background: var(--bg-secondary, oklch(95% 0.01 280));
    border: 1px solid var(--border-light, oklch(75% 0.02 280));
    border-radius: 8px;
    padding: var(--space-md, 1rem);
    overflow-y: auto;
    max-height: calc(90vh - 200px);
}

.livecomponent-admin-asset-picker__filters-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text, oklch(20% 0.02 280));
    margin: 0 0 var(--space-md, 1rem) 0;
    padding-bottom: var(--space-sm, 0.75rem);
    border-bottom: 1px solid var(--border-light, oklch(75% 0.02 280));
}

.livecomponent-admin-asset-picker__filter-group {
    margin-bottom: var(--space-md, 1rem);
}

.livecomponent-admin-asset-picker__filter-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text, oklch(20% 0.02 280));
    margin-bottom: var(--space-xs, 0.5rem);
}

.livecomponent-admin-asset-picker__filter-select,
.livecomponent-admin-asset-picker__filter-input {
    width: 100%;
    padding: var(--space-xs, 0.5rem) var(--space-sm, 0.75rem);
    border: 1px solid var(--border-light, oklch(75% 0.02 280));
    border-radius: 4px;
    background: var(--bg, oklch(100% 0 0));
    color: var(--text, oklch(20% 0.02 280));
    font-size: 0.875rem;
}

/* Assets Grid */
.livecomponent-admin-asset-picker__assets {
    flex: 1;
    overflow-y: auto;
    max-height: calc(90vh - 200px);
    padding-right: var(--space-xs, 0.5rem);
}

.livecomponent-admin-asset-picker__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: var(--space-md, 1rem);
}

.livecomponent-admin-asset-picker__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm, 0.75rem);
}

/* Asset Item */
.livecomponent-admin-asset-picker__item {
    border: 2px solid var(--border-light, oklch(75% 0.02 280));
    border-radius: 8px;
    padding: var(--space-sm, 0.75rem);
    cursor: pointer;
    transition: all 0.2s ease;
    background: var(--bg, oklch(100% 0 0));
    position: relative;
    overflow: hidden;
}

.livecomponent-admin-asset-picker__item:hover {
    border-color: var(--accent-primary, oklch(60% 0.2 280));
    transform: translateY(-2px);
    box-shadow: 0 4px 8px oklch(0% 0 0 / 0.1);
}

.livecomponent-admin-asset-picker__item--selected {
    border-color: var(--accent-primary, oklch(60% 0.2 280));
    border-width: 3px;
    box-shadow: 0 0 0 3px oklch(60% 0.2 280 / 0.1);
}

.livecomponent-admin-asset-picker__item--dragging {
    opacity: 0.5;
    transform: scale(0.95);
}

/* Asset Preview */
.livecomponent-admin-asset-picker__preview {
    position: relative;
    width: 100%;
    height: 120px;
    border-radius: 4px;
    overflow: hidden;
    background: var(--bg-secondary, oklch(95% 0.01 280));
    margin-bottom: var(--space-xs, 0.5rem);
}

.livecomponent-admin-asset-picker__preview-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.livecomponent-admin-asset-picker__item:hover .livecomponent-admin-asset-picker__preview-image {
    transform: scale(1.05);
}

.livecomponent-admin-asset-picker__preview-icon {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary, oklch(95% 0.01 280));
    color: var(--muted, oklch(50% 0.01 280));
    font-size: 0.75rem;
    text-align: center;
    padding: var(--space-xs, 0.5rem);
}

/* Asset Info */
.livecomponent-admin-asset-picker__info {
    font-size: 0.75rem;
    color: var(--muted, oklch(50% 0.01 280));
    word-break: break-all;
    line-height: 1.4;
}

.livecomponent-admin-asset-picker__info-id {
    font-family: monospace;
    font-size: 0.7rem;
}

/* List View */
.livecomponent-admin-asset-picker__list {
    display: none;
}

.livecomponent-admin-asset-picker__list[data-view="list"] {
    display: flex;
}

/* List View Item */
.livecomponent-admin-asset-picker__list-item {
    display: flex;
    align-items: center;
    gap: var(--space-md, 1rem);
    padding: var(--space-sm, 0.75rem);
    border: 1px solid var(--border-light, oklch(75% 0.02 280));
    border-radius: 6px;
    background: var(--bg, oklch(100% 0 0));
    cursor: pointer;
    transition: all 0.2s ease;
}

.livecomponent-admin-asset-picker__list-item:hover {
    background: var(--bg-secondary, oklch(95% 0.01 280));
    border-color: var(--accent-primary, oklch(60% 0.2 280));
}

.livecomponent-admin-asset-picker__list-item--selected {
    background: oklch(60% 0.2 280 / 0.1);
    border-color: var(--accent-primary, oklch(60% 0.2 280));
}

.livecomponent-admin-asset-picker__list-preview {
    width: 60px;
    height: 60px;
    border-radius: 4px;
    object-fit: cover;
    flex-shrink: 0;
}

.livecomponent-admin-asset-picker__list-info {
    flex: 1;
    min-width: 0;
}

.livecomponent-admin-asset-picker__list-id {
    font-family: monospace;
    font-size: 0.75rem;
    color: var(--text, oklch(20% 0.02 280));
    word-break: break-all;
}

.livecomponent-admin-asset-picker__list-mime {
    font-size: 0.7rem;
    color: var(--muted, oklch(50% 0.01 280));
    margin-top: var(--space-xs, 0.5rem);
}

/* Empty State */
.livecomponent-admin-asset-picker__empty {
    text-align: center;
    padding: var(--space-xl, 3rem);
    color: var(--muted, oklch(50% 0.01 280));
}

.livecomponent-admin-asset-picker__empty-text {
    font-size: 1rem;
    margin-bottom: var(--space-md, 1rem);
}

/* Selected Asset Display */
.livecomponent-admin-asset-picker__selected {
    margin-top: var(--space-md, 1rem);
    padding: var(--space-md, 1rem);
    background: var(--bg-secondary, oklch(95% 0.01 280));
    border-radius: 8px;
    border: 1px solid var(--border-light, oklch(75% 0.02 280));
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md, 1rem);
}

.livecomponent-admin-asset-picker__selected-label {
    font-weight: 600;
    color: var(--text, oklch(20% 0.02 280));
    font-size: 0.875rem;
}

.livecomponent-admin-asset-picker__selected-value {
    font-family: monospace;
    font-size: 0.875rem;
    color: var(--muted, oklch(50% 0.01 280));
    word-break: break-all;
    flex: 1;
    text-align: right;
}

.livecomponent-admin-asset-picker__clear {
    padding: var(--space-xs, 0.5rem) var(--space-sm, 0.75rem);
    border: 1px solid var(--border-light, oklch(75% 0.02 280));
    border-radius: 4px;
    background: var(--bg, oklch(100% 0 0));
    color: var(--text, oklch(20% 0.02 280));
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.livecomponent-admin-asset-picker__clear:hover {
    background: var(--bg-tertiary, oklch(92% 0.01 280));
    border-color: var(--accent-error, oklch(60% 0.25 25));
    color: var(--accent-error, oklch(60% 0.25 25));
}

/* Responsive Design */
@media (max-width: 1024px) {
    .livecomponent-admin-asset-picker__content {
        flex-direction: column;
    }

    .livecomponent-admin-asset-picker__filters {
        min-width: 100%;
        max-height: 200px;
    }
}

@media (max-width: 768px) {
    .livecomponent-admin-asset-picker__modal {
        padding: var(--space-md, 1rem);
        max-width: 100vw;
        max-height: 100vh;
        border-radius: 0;
    }

    .livecomponent-admin-asset-picker__grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: var(--space-sm, 0.75rem);
    }

    .livecomponent-admin-asset-picker__search-container {
        flex-direction: column;
    }
}

/* Loading State */
.livecomponent-admin-asset-picker__loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-xl, 3rem);
    color: var(--muted, oklch(50% 0.01 280));
}

.livecomponent-admin-asset-picker__loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-light, oklch(75% 0.02 280));
    border-top-color: var(--accent-primary, oklch(60% 0.2 280));
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}