/* ============================================================================
   Asset Panel - Bottom panel asset browser (Unity/Unreal-inspired)
   ============================================================================ */

/* ── Container ─────────────────────────────────────────────────── */
#assets-content {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
    gap: 0;
}

/* ── Toolbar (filters + search + view controls + import) ──────── */
.asset-toolbar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 10px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    flex-shrink: 0;
    background: rgba(0,0,0,0.15);
}

.asset-filters {
    display: flex;
    gap: 2px;
}

.asset-filter-btn {
    padding: 3px 10px;
    font-size: 10px;
    font-weight: 600;
    color: rgba(255,255,255,0.4);
    background: transparent;
    border: 1px solid transparent;
    border-radius: 4px;
    cursor: pointer;
    transition: color 0.15s, background 0.15s, border-color 0.15s;
    white-space: nowrap;
}

.asset-filter-btn:hover {
    color: rgba(255,255,255,0.7);
    background: rgba(255,255,255,0.05);
}

.asset-filter-btn.active {
    color: rgba(255,255,255,0.95);
    background: rgba(107,138,253,0.18);
    border-color: rgba(107,138,253,0.35);
}

/* ── Toolbar separator ────────────────────────────────────────── */
.asset-toolbar-sep {
    width: 1px;
    height: 16px;
    background: rgba(255,255,255,0.08);
    flex-shrink: 0;
}

/* ── Search ────────────────────────────────────────────────────── */
.asset-search {
    flex: 1;
    min-width: 100px;
    position: relative;
}

.asset-search input {
    width: 100%;
    padding: 4px 8px 4px 26px;
    font-size: 11px;
    color: rgba(255,255,255,0.85);
    background: rgba(0,0,0,0.3);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 4px;
    outline: none;
    font-family: inherit;
    transition: border-color 0.15s;
}

.asset-search input:focus {
    border-color: rgba(107,138,253,0.5);
    background: rgba(0,0,0,0.4);
}

.asset-search input::placeholder {
    color: rgba(255,255,255,0.22);
}

.asset-search-icon {
    position: absolute;
    left: 8px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 11px;
    color: rgba(255,255,255,0.25);
    pointer-events: none;
}

/* ── View toggle (grid / list) ─────────────────────────────────── */
.asset-view-toggle {
    display: flex;
    gap: 1px;
    background: rgba(0,0,0,0.2);
    border-radius: 4px;
    overflow: hidden;
    flex-shrink: 0;
}

.asset-view-btn {
    padding: 3px 7px;
    font-size: 12px;
    line-height: 1;
    color: rgba(255,255,255,0.3);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: color 0.12s, background 0.12s;
}

.asset-view-btn:hover {
    color: rgba(255,255,255,0.6);
}

.asset-view-btn.active {
    color: rgba(255,255,255,0.9);
    background: rgba(107,138,253,0.2);
}

/* ── Size slider ───────────────────────────────────────────────── */
.asset-size-slider {
    width: 60px;
    flex-shrink: 0;
    accent-color: rgba(107,138,253,0.8);
    cursor: pointer;
}

/* ── Import button ─────────────────────────────────────────────── */
.asset-import-btn {
    padding: 4px 12px;
    font-size: 10px;
    font-weight: 700;
    color: rgba(255,255,255,0.9);
    background: rgba(107,138,253,0.25);
    border: 1px solid rgba(107,138,253,0.4);
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
    white-space: nowrap;
    flex-shrink: 0;
}

.asset-import-btn:hover {
    background: rgba(107,138,253,0.4);
    border-color: rgba(107,138,253,0.6);
}

/* ── Main body: grid area + preview split ──────────────────────── */
.asset-body {
    display: flex;
    flex: 1;
    min-height: 0;
    overflow: hidden;
}

/* ── Asset Grid ────────────────────────────────────────────────── */
.asset-grid-wrap {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 8px;
    min-height: 0;
}

.asset-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(var(--asset-card-size, 160px), 1fr));
    gap: 6px;
}

.asset-grid-wrap.drag-over {
    background: rgba(107,138,253,0.06);
    outline: 2px dashed rgba(107,138,253,0.4);
    outline-offset: -4px;
}

/* ── List view ─────────────────────────────────────────────────── */
.asset-grid.list-view {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.asset-grid.list-view .asset-card {
    flex-direction: row;
    align-items: center;
    min-height: 0;
    padding: 4px 10px;
    border-radius: 3px;
    gap: 10px;
}

.asset-grid.list-view .asset-card-thumb {
    width: 28px;
    height: 28px;
    border-radius: 3px;
    flex-shrink: 0;
}

.asset-grid.list-view .asset-card-name {
    flex: 1;
    text-align: left;
    font-size: 11px;
}

.asset-grid.list-view .asset-card-meta {
    font-size: 9px;
    color: rgba(255,255,255,0.3);
    flex-shrink: 0;
}

.asset-grid.list-view .asset-card-badge {
    margin-top: 0;
}

/* ── Asset Card (grid view) ────────────────────────────────────── */
.asset-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 6px;
    border-radius: 5px;
    background: rgba(255,255,255,0.025);
    border: 1px solid rgba(255,255,255,0.04);
    cursor: pointer;
    transition: background 0.12s, border-color 0.12s, box-shadow 0.12s;
    user-select: none;
    position: relative;
    overflow: hidden;
}

.asset-card:hover {
    background: rgba(255,255,255,0.06);
    border-color: rgba(255,255,255,0.12);
}

.asset-card.selected {
    background: rgba(107,138,253,0.1);
    border-color: rgba(107,138,253,0.45);
    box-shadow: 0 0 0 1px rgba(107,138,253,0.15);
}

/* ── Thumbnail area ────────────────────────────────────────────── */
.asset-card-thumb {
    width: 100%;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    margin-bottom: 5px;
    overflow: hidden;
    position: relative;
    background: rgba(0,0,0,0.2);
}

/* Type-colored top accent stripe */
.asset-card-thumb::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    border-radius: 4px 4px 0 0;
    opacity: 0.7;
}

.asset-card[data-type="model"] .asset-card-thumb::before  { background: #6b8afd; }
.asset-card[data-type="texture"] .asset-card-thumb::before { background: #50c878; }
.asset-card[data-type="audio"] .asset-card-thumb::before   { background: #ffa03c; }
.asset-card[data-type="script"] .asset-card-thumb::before  { background: #c878ff; }
.asset-card[data-type="shader"] .asset-card-thumb::before  { background: #ff6b9d; }
.asset-card[data-type="prefab"] .asset-card-thumb::before  { background: #38bdf8; }
.asset-card[data-type="scene"] .asset-card-thumb::before   { background: #fbbf24; }
.asset-card[data-type="data"] .asset-card-thumb::before    { background: #94a3b8; }
.asset-card[data-type="font"] .asset-card-thumb::before    { background: #a78bfa; }

/* Fallback icon inside thumbnail */
.asset-card-thumb-icon {
    font-size: 28px;
    line-height: 1;
    opacity: 0.5;
    z-index: 1;
}

/* Actual image/canvas preview */
.asset-card-thumb img,
.asset-card-thumb canvas {
    width: 100%;
    height: 100%;
    object-fit: contain;
    position: absolute;
    inset: 0;
    z-index: 2;
}

/* ── Card name ─────────────────────────────────────────────────── */
.asset-card-name {
    font-size: 10px;
    font-weight: 500;
    color: rgba(255,255,255,0.8);
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    width: 100%;
    line-height: 1.3;
}

/* ── Type badge ────────────────────────────────────────────────── */
.asset-card-badge {
    font-size: 8px;
    padding: 1px 5px;
    border-radius: 3px;
    margin-top: 3px;
    font-weight: 600;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}

.asset-card-badge.model   { background: rgba(107,138,253,0.15); color: rgba(140,170,255,0.85); }
.asset-card-badge.texture { background: rgba(80,200,120,0.15);  color: rgba(120,220,150,0.85); }
.asset-card-badge.audio   { background: rgba(255,160,60,0.15);  color: rgba(255,185,110,0.85); }
.asset-card-badge.script  { background: rgba(200,120,255,0.15); color: rgba(210,155,255,0.85); }
.asset-card-badge.shader  { background: rgba(255,107,157,0.15); color: rgba(255,140,180,0.85); }
.asset-card-badge.prefab  { background: rgba(56,189,248,0.15);  color: rgba(100,200,250,0.85); }
.asset-card-badge.scene   { background: rgba(251,191,36,0.15);  color: rgba(255,210,90,0.85);  }
.asset-card-badge.data    { background: rgba(148,163,184,0.15); color: rgba(170,180,195,0.85); }
.asset-card-badge.font    { background: rgba(167,139,250,0.15); color: rgba(180,160,255,0.85); }

/* ── Preview pane — HORIZONTAL: canvas LEFT, info RIGHT ───────── */
.asset-preview-pane {
    width: 420px;
    flex-shrink: 0;
    border-left: 1px solid rgba(255,255,255,0.08);
    display: flex;
    flex-direction: row;
    background: rgba(6,6,12,0.5);
    overflow: hidden;
}

.asset-preview-pane.hidden {
    display: none;
}

/* ── Canvas (LEFT side, fills full height) ────────────────────── */
.asset-preview-canvas-wrap {
    width: 200px;
    min-width: 200px;
    flex-shrink: 0;
    align-self: stretch;
    background: radial-gradient(ellipse at 50% 45%, rgba(22,24,40,0.95) 0%, rgba(8,8,16,1) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.asset-preview-canvas-wrap canvas,
.asset-preview-canvas-wrap img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    image-rendering: auto;
}

.asset-preview-canvas-wrap .preview-placeholder {
    font-size: 48px;
    opacity: 0.12;
}

/* ── Info column (RIGHT side: name + path + details) ──────────── */
.asset-preview-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border-left: 1px solid rgba(255,255,255,0.06);
}

.asset-preview-name {
    font-size: 13px;
    font-weight: 700;
    color: rgba(255,255,255,0.95);
    padding: 10px 12px 2px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex-shrink: 0;
    letter-spacing: 0.2px;
}

.asset-preview-path {
    font-size: 9px;
    color: rgba(255,255,255,0.3);
    padding: 2px 12px 8px;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex-shrink: 0;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.asset-preview-details {
    padding: 6px 12px;
    display: flex;
    flex-direction: column;
    gap: 0;
    overflow-y: auto;
    flex: 1;
    min-height: 0;
}

.asset-preview-detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 0;
    border-bottom: 1px solid rgba(255,255,255,0.04);
    gap: 8px;
}

.asset-preview-detail-row:last-child {
    border-bottom: none;
}

.asset-preview-detail-label {
    color: rgba(255,255,255,0.4);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 9px;
    flex-shrink: 0;
}

.asset-preview-detail-value {
    color: rgba(255,255,255,0.85);
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 10px;
    text-align: right;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
}

/* ── Empty State ───────────────────────────────────────────────── */
.asset-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 30px 20px;
    color: rgba(255,255,255,0.25);
    font-size: 12px;
    text-align: center;
    height: 100%;
}

.asset-empty-icon {
    font-size: 32px;
    opacity: 0.3;
}

.asset-empty-hint {
    font-size: 10px;
    color: rgba(255,255,255,0.15);
}

/* ── Context Menu ──────────────────────────────────────────────── */
.asset-context-menu {
    position: fixed;
    z-index: 10000;
    min-width: 160px;
    padding: 4px 0;
    background: rgba(18,18,26,0.98);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 6px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.5);
    backdrop-filter: blur(8px);
}

.asset-context-item {
    padding: 6px 16px;
    font-size: 11px;
    color: rgba(255,255,255,0.75);
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.1s, color 0.1s;
}

.asset-context-item:hover {
    background: rgba(107,138,253,0.2);
    color: rgba(255,255,255,0.95);
}

.asset-context-item.danger {
    color: rgba(255,100,100,0.75);
}

.asset-context-item.danger:hover {
    background: rgba(255,60,60,0.15);
    color: rgba(255,120,120,0.95);
}

.asset-context-sep {
    height: 1px;
    margin: 4px 10px;
    background: rgba(255,255,255,0.06);
}

/* ── Status Bar ────────────────────────────────────────────────── */
.asset-status {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 3px 10px;
    font-size: 9px;
    color: rgba(255,255,255,0.3);
    border-top: 1px solid rgba(255,255,255,0.04);
    flex-shrink: 0;
    background: rgba(0,0,0,0.1);
}

.asset-status-left {
    display: flex;
    gap: 12px;
}

.asset-status-right {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
}