/* ============================================================================
 * Material Studio - Overlay Panel Styles
 * Follows the Sound Studio overlay pattern
 * ============================================================================ */

.material-studio-panel {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80vw;
    max-width: 1200px;
    height: 70vh;
    max-height: 800px;
    min-width: 700px;
    min-height: 450px;
    background: #1a1a24;
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 12px;
    box-shadow: 0 16px 64px rgba(0,0,0,0.6), 0 0 0 1px rgba(107,138,253,0.15);
    display: flex;
    flex-direction: column;
    z-index: 9000;
    overflow: hidden;
    font-family: system-ui, -apple-system, sans-serif;
    color: #ccc;
    font-size: 12px;
}

/* ── Header ─────────────────────────────────────────────────────── */

.material-studio-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 14px;
    background: rgba(255,255,255,0.04);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    cursor: grab;
    user-select: none;
    flex-shrink: 0;
}

.material-studio-header:active {
    cursor: grabbing;
}

.material-studio-title {
    font-size: 13px;
    font-weight: 600;
    color: #e0e0f0;
    letter-spacing: 0.5px;
}

.material-studio-controls {
    display: flex;
    gap: 4px;
}

.material-studio-controls button {
    background: none;
    border: 1px solid rgba(255,255,255,0.1);
    color: #888;
    width: 26px;
    height: 26px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s;
}

.material-studio-controls button:hover {
    background: rgba(255,255,255,0.08);
    color: #fff;
    border-color: rgba(255,255,255,0.2);
}

/* ── Body Layout ────────────────────────────────────────────────── */

.material-studio-body {
    display: flex;
    flex: 1;
    min-height: 0;
    overflow: hidden;
}

/* ── Library Panel (Left) ───────────────────────────────────────── */

.mat-library {
    width: 200px;
    min-width: 160px;
    max-width: 280px;
    display: flex;
    flex-direction: column;
    border-right: 1px solid rgba(255,255,255,0.08);
    background: rgba(0,0,0,0.15);
}

.mat-library-header {
    padding: 8px 10px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    flex-shrink: 0;
}

.mat-library-search {
    width: 100%;
    padding: 5px 8px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 6px;
    color: #ccc;
    font-size: 11px;
    outline: none;
    box-sizing: border-box;
}

.mat-library-search:focus {
    border-color: rgba(107,138,253,0.5);
    background: rgba(255,255,255,0.08);
}

.mat-library-actions {
    display: flex;
    gap: 4px;
}

.mat-library-actions button {
    flex: 1;
    padding: 4px 6px;
    background: rgba(107,138,253,0.15);
    border: 1px solid rgba(107,138,253,0.25);
    border-radius: 5px;
    color: #a0b0ff;
    font-size: 10px;
    cursor: pointer;
    transition: all 0.15s;
}

.mat-library-actions button:hover {
    background: rgba(107,138,253,0.3);
    color: #c0d0ff;
}

.mat-library-grid {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 6px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.mat-library-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 5px 8px;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.12s;
    user-select: none;
}

.mat-library-item:hover {
    background: rgba(255,255,255,0.06);
}

.mat-library-item.selected {
    background: rgba(107,138,253,0.2);
    outline: 1px solid rgba(107,138,253,0.4);
}

.mat-swatch {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    border: 1px solid rgba(255,255,255,0.12);
    flex-shrink: 0;
}

.mat-library-label {
    flex: 1;
    font-size: 11px;
    color: #bbb;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mat-library-item.selected .mat-library-label {
    color: #e0e8ff;
}

.mat-library-tag {
    font-size: 9px;
    color: #666;
    background: rgba(255,255,255,0.05);
    padding: 1px 5px;
    border-radius: 3px;
}

/* ── Inspector Panel (Center) ───────────────────────────────────── */

.mat-inspector {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    overflow: hidden;
}

.mat-inspector-tabs {
    display: flex;
    gap: 0;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    flex-shrink: 0;
    background: rgba(0,0,0,0.1);
}

.mat-inspector-tab {
    padding: 7px 16px;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    color: #888;
    font-size: 11px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
}

.mat-inspector-tab:hover {
    color: #bbb;
    background: rgba(255,255,255,0.03);
}

.mat-inspector-tab.active {
    color: #c0d0ff;
    border-bottom-color: #6b8afd;
}

.mat-inspector-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 12px 14px;
}

/* ── Node Graph Container ──────────────────────────────────────── */

.mat-graph-content {
    flex: 1;
    min-height: 0;
    position: relative;
    overflow: hidden;
    background: #0d0d14;
}

.mat-graph-content canvas {
    display: block;
}

.mat-inspector-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: #555;
    font-size: 12px;
    font-style: italic;
}

/* ── Property Rows ──────────────────────────────────────────────── */

.mat-section {
    margin-bottom: 14px;
}

.mat-section-title {
    font-size: 10px;
    font-weight: 600;
    color: #777;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
    padding-bottom: 4px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.mat-prop-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.mat-prop-label {
    width: 90px;
    font-size: 11px;
    color: #999;
    flex-shrink: 0;
    text-align: right;
}

.mat-prop-value {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 6px;
    min-width: 0;
}

/* Color input */
.mat-color-input {
    width: 32px;
    height: 24px;
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 4px;
    cursor: pointer;
    padding: 0;
    background: none;
    flex-shrink: 0;
}

.mat-color-input::-webkit-color-swatch-wrapper {
    padding: 0;
}

.mat-color-input::-webkit-color-swatch {
    border: none;
    border-radius: 3px;
}

/* Slider */
.mat-slider {
    flex: 1;
    -webkit-appearance: none;
    appearance: none;
    height: 4px;
    background: rgba(255,255,255,0.1);
    border-radius: 2px;
    outline: none;
}

.mat-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    background: #6b8afd;
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid #1a1a24;
    box-shadow: 0 0 4px rgba(107,138,253,0.3);
}

.mat-slider:hover::-webkit-slider-thumb {
    background: #8ba0ff;
}

.mat-slider-value {
    width: 36px;
    font-size: 10px;
    color: #888;
    text-align: right;
    flex-shrink: 0;
}

/* Texture dropzone */
.mat-texture-slot {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
}

.mat-texture-dropzone {
    flex: 1;
    height: 36px;
    border: 1px dashed rgba(255,255,255,0.15);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.15s;
    font-size: 10px;
    color: #555;
    overflow: hidden;
    background: rgba(0,0,0,0.15);
}

.mat-texture-dropzone:hover {
    border-color: rgba(107,138,253,0.4);
    background: rgba(107,138,253,0.05);
    color: #888;
}

.mat-texture-dropzone.has-texture {
    border-style: solid;
    border-color: rgba(255,255,255,0.15);
}

.mat-texture-dropzone img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 5px;
}

.mat-texture-clear {
    width: 20px;
    height: 20px;
    background: rgba(255,80,80,0.15);
    border: 1px solid rgba(255,80,80,0.3);
    border-radius: 4px;
    color: #f88;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    flex-shrink: 0;
    transition: all 0.15s;
}

.mat-texture-clear:hover {
    background: rgba(255,80,80,0.3);
    color: #fbb;
}

/* ── Preview Panel (Right) ──────────────────────────────────────── */

.mat-preview {
    width: 220px;
    min-width: 180px;
    max-width: 300px;
    display: flex;
    flex-direction: column;
    border-left: 1px solid rgba(255,255,255,0.08);
    background: rgba(0,0,0,0.15);
}

.mat-preview-canvas-wrap {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px;
    min-height: 0;
}

.mat-preview-canvas {
    width: 100%;
    aspect-ratio: 1;
    max-height: 200px;
    border-radius: 10px;
    background: #111118;
    border: 1px solid rgba(255,255,255,0.08);
}

.mat-preview-shapes {
    display: flex;
    justify-content: center;
    gap: 4px;
    padding: 6px 12px;
    border-top: 1px solid rgba(255,255,255,0.06);
    flex-shrink: 0;
}

.mat-preview-shape-btn {
    padding: 4px 10px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 5px;
    color: #888;
    font-size: 10px;
    cursor: pointer;
    transition: all 0.15s;
}

.mat-preview-shape-btn:hover {
    background: rgba(255,255,255,0.1);
    color: #bbb;
}

.mat-preview-shape-btn.active {
    background: rgba(107,138,253,0.2);
    border-color: rgba(107,138,253,0.4);
    color: #c0d0ff;
}

.mat-preview-actions {
    padding: 8px 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    border-top: 1px solid rgba(255,255,255,0.06);
    flex-shrink: 0;
}

.mat-apply-btn {
    width: 100%;
    padding: 7px 12px;
    background: linear-gradient(135deg, rgba(107,138,253,0.3), rgba(167,139,250,0.3));
    border: 1px solid rgba(107,138,253,0.4);
    border-radius: 6px;
    color: #d0d8ff;
    font-size: 11px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
}

.mat-apply-btn:hover {
    background: linear-gradient(135deg, rgba(107,138,253,0.45), rgba(167,139,250,0.45));
    color: #fff;
}

.mat-apply-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* ── Scrollbar ──────────────────────────────────────────────────── */

.mat-library-grid::-webkit-scrollbar,
.mat-inspector-content::-webkit-scrollbar {
    width: 5px;
}

.mat-library-grid::-webkit-scrollbar-track,
.mat-inspector-content::-webkit-scrollbar-track {
    background: transparent;
}

.mat-library-grid::-webkit-scrollbar-thumb,
.mat-inspector-content::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.1);
    border-radius: 3px;
}

.mat-library-grid::-webkit-scrollbar-thumb:hover,
.mat-inspector-content::-webkit-scrollbar-thumb:hover {
    background: rgba(255,255,255,0.2);
}

/* ── Select dropdown ────────────────────────────────────────────── */

.mat-select {
    flex: 1;
    padding: 4px 8px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 5px;
    color: #ccc;
    font-size: 11px;
    outline: none;
    cursor: pointer;
}

.mat-select:focus {
    border-color: rgba(107,138,253,0.5);
}

/* ── Checkbox ───────────────────────────────────────────────────── */

.mat-checkbox {
    accent-color: #6b8afd;
    cursor: pointer;
}