/* ===== Reset & Base ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --menubar-height: 32px;
    --sidebar-width: 280px;
    --background-buttons: #0f3460;
    --background-buttons-hover: #bbbbbb;


    --bg-dark: #1a1a2e;
    --bg-panel: #16213e;
    --bg-input: #0f3460;
    --accent: #7777cc;
    --accent-hover: #ff6b81;
    --text-primary: #eaeaea;
    --text-secondary: #a0a0b0;
    --border: #2a2a4a;
    --grow-btn: var(--background-buttons);
    --grow-btn-hover: var(--background-buttons-hover);
    --op-btn: #0f3460;
    --op-btn-hover: #bbbbcc;
    --danger: #0f3460;
    --danger-hover: #c0392b;
    --prim-btn: var(--background-buttons);
    --prim-btn-hover: v--background-buttons-hover;
    --white: #ffffff;
    --black: #000000;


}

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
}

/* ===== Top Menu Bar ===== */
#menuBar {
    display: flex;
    align-items: center;
    height: var(--menubar-height);
    background: var(--bg-panel);
    border-bottom: 1px solid var(--border);
    padding: 0 4px;
    z-index: 100;
    position: relative;
    flex-shrink: 0;
}

.menu-item {
    position: relative;
}

.menu-trigger {
    display: inline-block;
    padding: 4px 12px;
    font-size: 13px;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 3px;
    transition: background 0.1s, color 0.1s;
    user-select: none;
}

.menu-trigger:hover,
.menu-item.open .menu-trigger {
    background: var(--bg-input);
    color: var(--text-primary);
}

.menu-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: 4px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.5);
    padding: 4px 0;
    z-index: 200;
}

.menu-item.open .menu-dropdown {
    display: block;
}

.menu-action {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 6px 14px;
    border: none;
    background: none;
    color: var(--text-primary);
    font-size: 12px;
    cursor: pointer;
    text-align: left;
    font-family: inherit;
    transition: background 0.1s;
}

.menu-action:hover {
    background: var(--accent);
}

.menu-shortcut {
    font-size: 11px;
    color: var(--text-secondary);
    margin-left: 20px;
}

.menu-action:hover .menu-shortcut {
    color: rgba(255,255,255,0.7);
}

.menu-sep {
    height: 1px;
    background: var(--border);
    margin: 4px 8px;
}

.menu-heading {
    padding: 4px 14px 2px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: var(--text-secondary);
    pointer-events: none;
}

#recentFilesList {
    max-height: 320px;
    overflow-y: auto;
}

.recent-file-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 160px;
}

.menu-info {
    display: block;
    padding: 6px 14px;
    font-size: 11px;
    color: var(--text-secondary);
    pointer-events: none;
}

.menu-toggle {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 6px 14px 6px 28px;
    border: none;
    background: none;
    color: var(--text-primary);
    font-size: 12px;
    cursor: pointer;
    text-align: left;
    font-family: inherit;
    transition: background 0.1s;
    position: relative;
}

.menu-toggle:hover {
    background: var(--accent);
}

.menu-toggle.active::before {
    content: "\2713";
    position: absolute;
    left: 10px;
    font-size: 12px;
    font-weight: 700;
    color: var(--accent);
}

.menu-toggle.active:hover::before {
    color: #fff;
}

/* ===== Layout ===== */
body {
    display: flex;
    flex-direction: column;
}

#app {
    display: flex;
    width: 100%;
    flex: 1;
    min-height: 0;
}

/* ===== Sidebars (shared) ===== */
#sidebar,
#rightSidebar {
    width: var(--sidebar-width);
    min-width: var(--sidebar-width);
    height: 100%;
    background: var(--bg-panel);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
}

#sidebar {
    border-right: 1px solid var(--border);
}

#rightSidebar {
    border-left: 1px solid var(--border);
}

#sidebar::-webkit-scrollbar,
#rightSidebar::-webkit-scrollbar {
    width: 6px;
}

#sidebar::-webkit-scrollbar-track,
#rightSidebar::-webkit-scrollbar-track {
    background: transparent;
}

#sidebar::-webkit-scrollbar-thumb,
#rightSidebar::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

.sidebar-header {
    padding: 16px;
    border-bottom: 1px solid var(--border);
    text-align: center;
}

.sidebar-header h1 {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--accent);
}

/* ===== Panels ===== */
.panel {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
}

.panel-title {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

/* ===== Buttons ===== */
.btn {
    display: block;
    width: 100%;
    padding: 8px 12px;
    border: none;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s, transform 0.1s;
    color: #fff;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

.btn-prim {
    background: var(--prim-btn);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 4px 8px;
}
.btn-prim:hover {
    background: var(--prim-btn-hover);
}

.btn-transform {
    padding: 4px 8px;
    font-size: 11px;
}
.btn-transform.active {
    background: var(--accent);
    box-shadow: 0 0 0 2px var(--accent) inset;
}
.btn-transform.active:hover {
    background: var(--accent-hover);
}

.btn-accent {
    background: var(--accent);
}
.btn-accent:hover {
    background: var(--accent-hover);
}

.btn-grow {
    background: var(--grow-btn);
}
.btn-grow:hover {
    background: var(--grow-btn-hover);
}

.btn-op {
    background: var(--op-btn);
    padding: 4px 8px;
    font-size: 10px;
}
.btn-op:hover {
    background: var(--op-btn-hover);
}

.btn-danger {
    background: var(--danger);
    padding: 4px 8px;
    font-size: 10px;
}
.btn-danger:hover {
    background: var(--danger-hover);
}

.button-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
}

.button-stack {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.button-row {
    display: flex;
    gap: 6px;
}

.button-row .btn {
    flex: 1;
}

/* ===== Color ===== */
.color-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.color-row input[type="color"] {
    width: 40px;
    height: 32px;
    border: 2px solid var(--border);
    border-radius: 4px;
    background: none;
    cursor: pointer;
    padding: 0;
}

.preset-colors {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.color-swatch {
    width: 24px;
    height: 24px;
    border-radius: 4px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: border-color 0.15s, transform 0.1s;
}

.color-swatch:hover {
    border-color: #fff;
    transform: scale(1.15);
}

/* ===== Slider ===== */
.slider-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
}

.slider-row label {
    font-size: 12px;
    color: var(--text-secondary);
    min-width: 55px;
}

.slider-row input[type="range"] {
    flex: 1;
    accent-color: var(--accent);
}

.slider-row span {
    font-size: 12px;
    min-width: 30px;
    text-align: right;
    color: var(--text-secondary);
}

/* ===== Info & Hints ===== */
.info-text {
    font-size: 12px;
    color: var(--text-secondary);
}

.hint-text {
    font-size: 11px;
    color: var(--text-secondary);
    margin-top: 8px;
}

.hint-text kbd {
    background: var(--bg-input);
    padding: 1px 5px;
    border-radius: 3px;
    font-size: 10px;
    border: 1px solid var(--border);
}

/* ===== Object List ===== */
.object-list {
    list-style: none;
    max-height: 160px;
    overflow-y: auto;
}

.object-list li {
    padding: 5px 8px;
    font-size: 12px;
    border-radius: 3px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: background 0.1s;
}

.object-list li:hover {
    background: var(--bg-input);
}

.object-list li.active {
    background: var(--accent);
    color: #fff;
}

.object-list li .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

/* ── Groups in object list ── */
.object-list li.group-header {
    font-weight: 600;
    gap: 4px;
}

.object-list li.group-header .group-arrow {
    width: 14px;
    text-align: center;
    cursor: pointer;
    flex-shrink: 0;
}

.object-list li.group-header .group-icon {
    flex-shrink: 0;
    font-size: 13px;
}

.object-list li.group-child {
    padding-left: 26px;
    font-size: 11px;
    opacity: 0.9;
}

/* ── Box select overlay ── */
#boxSelectOverlay {
    position: absolute;
    border: 1px dashed var(--accent, #4a90d9);
    background: rgba(74, 144, 217, 0.12);
    pointer-events: none;
    display: none;
    z-index: 100;
}

/* ===== Viewport ===== */
#viewport {
    flex: 1;
    position: relative;
    overflow: hidden;
}

#viewport canvas {
    display: block;
}

/* ===== Selection highlight indicator ===== */
.selected-indicator {
    position: absolute;
    bottom: 12px;
    left: 12px;
    background: rgba(0,0,0,0.6);
    color: var(--text-primary);
    padding: 6px 14px;
    border-radius: 4px;
    font-size: 12px;
    pointer-events: none;
}

/* ===== Right Sidebar: Property Grid ===== */
.prop-grid {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 4px 10px;
    font-size: 12px;
}

.prop-label {
    color: var(--text-secondary);
    font-weight: 500;
}

.prop-value {
    color: var(--text-primary);
    word-break: break-all;
}

/* ===== Right Sidebar: Transform Row ===== */
.transform-row {
    display: grid;
    grid-template-columns: 18px 1fr 18px 1fr 18px 1fr;
    gap: 4px;
    align-items: center;
}

.transform-row label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    text-align: center;
}

.transform-row input[type="number"] {
    width: 100%;
    padding: 4px 5px;
    border: 1px solid var(--border);
    border-radius: 3px;
    background: var(--bg-input);
    color: var(--text-primary);
    font-size: 11px;
    font-family: inherit;
    text-align: right;
    outline: none;
    transition: border-color 0.15s;
    -moz-appearance: textfield;
    appearance: textfield;
}

.transform-row input[type="number"]::-webkit-inner-spin-button,
.transform-row input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.transform-row input[type="number"]:focus {
    border-color: var(--accent);
}

.transform-row input[type="number"]:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

/* ===== Right Sidebar: Toggle Row ===== */
.toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 12px;
}

.toggle-row label {
    color: var(--text-secondary);
}

.toggle-row input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--accent);
    cursor: pointer;
}

/* ===== Right Sidebar: Light List ===== */
.light-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.light-item {
    display: grid;
    grid-template-columns: 1fr auto auto auto;
    gap: 6px;
    align-items: center;
    padding: 5px 8px;
    background: var(--bg-input);
    border-radius: 4px;
}

.light-label {
    font-size: 11px;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.light-slider {
    width: 70px;
    accent-color: var(--accent);
}

.light-val {
    font-size: 11px;
    color: var(--text-secondary);
    min-width: 30px;
    text-align: right;
}

.light-edit-btn {
    background: none;
    border: 1px solid transparent;
    border-radius: 3px;
    color: var(--text-primary);
    font-size: 11px;
    font-family: inherit;
    cursor: pointer;
    padding: 2px 6px;
    text-align: left;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: background 0.15s, border-color 0.15s;
}

.light-edit-btn:hover {
    background: var(--accent);
    border-color: var(--accent);
}

.light-edit-btn.light-editing {
    background: rgba(255, 255, 0, 0.15);
    border-color: #ffff00;
    color: #ffff00;
}

.light-item-active {
    outline: 1px solid #ffff00;
    outline-offset: -1px;
}

.light-remove {
    background: var(--danger);
    color: #fff;
    border: none;
    border-radius: 3px;
    width: 20px;
    height: 20px;
    font-size: 14px;
    line-height: 18px;
    text-align: center;
    cursor: pointer;
    padding: 0;
    transition: background 0.15s;
}

.light-remove:hover {
    background: var(--danger-hover);
}

/* ===== Right Sidebar: Shortcuts ===== */
.shortcuts-list {
    display: flex;
    flex-direction: column;
    gap: 5px;
    font-size: 11px;
    color: var(--text-secondary);
}

/* ===== Materials Panel (right sidebar) ===== */

.mat-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    writing-mode: vertical-lr;
    transform: rotate(180deg);
    white-space: nowrap;
}

.mat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, 54px);
    gap: 4px;
}

.mat-preview {
    width: 54px;
    height: 54px;
    border: 2px solid #222222;
    border-radius: 4px;
    cursor: pointer;
    transition: border-color 0.15s;
    image-rendering: auto;
}

.mat-preview:hover {
    border-color: var(--text-secondary);
}

.mat-preview.mat-active {
    border-color: var(--black);
}

.mat-preview.mat-selected {
    border-color: #ffffff;
    box-shadow: none;
}

/* ===== Sale Sidebar ===== */
#saleSidebar {
    width: var(--sidebar-width);
    min-width: var(--sidebar-width);
    height: 100%;
    background: var(--bg-panel);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
    border-right: 1px solid var(--border);
}

.sale-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 16px;
}

.sale-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
}

.sale-input {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--bg-input);
    color: var(--text-primary);
    font-size: 13px;
    font-family: inherit;
    outline: none;
    transition: border-color 0.15s;
}

.sale-input:focus {
    border-color: var(--accent);
}

.sale-input::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
}

.sale-price-row {
    display: flex;
    align-items: center;
    gap: 6px;
}

.sale-currency {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
}

.sale-price-input {
    flex: 1;
    -moz-appearance: textfield;
    appearance: textfield;
}

.sale-price-input::-webkit-inner-spin-button,
.sale-price-input::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.sale-select {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--bg-input);
    color: var(--text-primary);
    font-size: 13px;
    font-family: inherit;
    outline: none;
    cursor: pointer;
    transition: border-color 0.15s;
}

.sale-select:focus {
    border-color: var(--accent);
}

.sale-sell-btn {
    margin-top: 10px;
}

/* ===== Material Preview Toggle ===== */
.mat-preview-toggle {
    display: inline-block;
    padding: 3px 10px;
    margin-bottom: 6px;
    font-size: 10px;
    font-weight: 600;
    font-family: inherit;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 3px;
    cursor: pointer;
    transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.mat-preview-toggle:hover {
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

.mat-preview-toggle.active {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

/* ===== Big Material Preview ===== */
.mat-big-preview-panel {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    margin-top: 10px;
    padding: 8px;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 6px;
}

.mat-big-preview-canvas {
    width: 350px;
    height: 350px;
    border-radius: 4px;
    image-rendering: auto;
}

.mat-big-preview-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ===== Modes Menu ===== */
.mode-option {
    position: relative;
    padding-left: 28px !important;
}

.mode-option.active::before {
    content: "\2713";
    position: absolute;
    left: 10px;
    font-size: 12px;
    font-weight: 700;
    color: var(--accent);
}

.mode-option.active:hover::before {
    color: #fff;
}

.shortcuts-list kbd {
    display: inline-block;
    background: var(--bg-input);
    padding: 1px 6px;
    border-radius: 3px;
    font-size: 10px;
    border: 1px solid var(--border);
    color: var(--text-primary);
    margin-right: 4px;
    min-width: 20px;
    text-align: center;
}

/* ===== Material Settings ===== */
.matsettings-content {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 8px 0;
}

.matsettings-content .slider-row {
    display: flex;
    align-items: center;
    gap: 3px;
}

.matsettings-content .slider-row label {
    font-size: 11px;
    font-weight: 600;
    min-width: 32px;
    color: var(--text-secondary);
}

.matsettings-content .slider-row input[type="range"] {
    flex: 1;
    min-width: 29px;
    accent-color: var(--accent);
}

.matsettings-content .slider-row span {
    font-size: 11px;
    min-width: 32px;
    text-align: right;
    color: var(--text-primary);
}

.matsettings-content .hint-text {
    font-size: 10px;
    color: var(--text-secondary);
    opacity: 0.7;
    margin: 2px 0 0;
}

/* ===== JPG Drop Panel ===== */
.jpg-drop-panel {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 355px;
    padding: 24px 20px;
    background: #000000;
    color: #ffffff;
    border-radius: 8px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
    z-index: 9999;
    font-family: inherit;
}

.jpg-drop-title {
    font-size: 16px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.jpg-drop-filename {
    font-size: 12px;
    color: #aaaaaa;
    word-break: break-all;
    text-align: center;
    margin-bottom: 4px;
}

.jpg-drop-btn {
    width: 100%;
    padding: 10px 0;
    font-size: 13px;
    font-weight: 600;
    font-family: inherit;
    border: 1px solid #444;
    border-radius: 4px;
    background: #1a1a1a;
    color: #ffffff;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
}

.jpg-drop-btn:hover {
    background: #2a2a2a;
    border-color: #888;
}

.jpg-drop-btn-cancel {
    background: transparent;
    border-color: #333;
    color: #888;
    margin-top: 4px;
}

.jpg-drop-btn-cancel:hover {
    color: #ffffff;
    border-color: #666;
}

.jpg-drop-status {
    font-size: 12px;
    font-weight: 600;
    min-height: 18px;
    text-align: center;
}

.jpg-drop-success {
    color: #2ecc71;
}

.jpg-drop-error {
    color: #e74c3c;
}

/* ===== Mode Indicator (viewport overlay) ===== */
.mode-indicator {
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.55);
    color: var(--text-secondary);
    padding: 4px 16px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    pointer-events: none;
    z-index: 10;
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

/* ===== Viewport Focus Button ===== */
.viewport-focus-btn {
    position: absolute;
    bottom: 12px;
    right: 12px;
    z-index: 10;
    background: #0F345F;
    color: #ffffff;
    border: none;
    border-radius: 6px;
    padding: 6px 18px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.35);
    transition: background 0.15s, box-shadow 0.15s;
}

.viewport-focus-btn:hover {
    background: #1d4ed8;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.5);
}

.viewport-focus-btn:active {
    background: #1e40af;
}

/* ===== Viewport Tool Buttons (top-left) ===== */
.viewport-tool-btn {
    position: absolute;
    top: 10px;
    left: 12px;
    z-index: 10;
    width: 28px;
    height: 28px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(30, 30, 30, 0.75);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 5px;
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    backdrop-filter: blur(4px);
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.viewport-tool-btn:hover {
    background: rgba(50, 50, 50, 0.9);
    border-color: rgba(255, 255, 255, 0.35);
    color: #fff;
}

.viewport-tool-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    box-shadow: 0 0 8px rgba(37, 99, 235, 0.5);
}


/* ===== UV Editor ===== */
.uv-canvas-wrap {
    display: flex;
    justify-content: center;
    margin-bottom: 8px;
}

.uv-canvas {
    border: 1px solid var(--border);
    border-radius: 4px;
    cursor: crosshair;
    image-rendering: auto;
}

.uv-info-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.uv-sliders {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 8px;
}

.uv-slider-row {
    display: flex;
    align-items: center;
    gap: 6px;
}

.uv-slider-row label {
    font-size: 11px;
    font-weight: 600;
    min-width: 55px;
    color: var(--text-secondary);
}

.uv-slider-row input[type="range"] {
    flex: 1;
    min-width: 40px;
    accent-color: var(--accent);
}

.uv-slider-row span {
    font-size: 11px;
    min-width: 36px;
    text-align: right;
    color: var(--text-primary);
}

.uv-btn-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 4px;
}

.uv-btn {
    padding: 5px 6px;
    font-size: 11px;
}

.uv-mode-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 4px;
    margin-bottom: 8px;
}

.uv-mode-btn {
    padding: 5px 6px;
    font-size: 11px;
    border: 1px solid var(--border);
    background: var(--bg-panel);
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 4px;
    transition: background 0.15s, color 0.15s;
}

.uv-mode-btn.active {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

.uv-mode-btn:hover:not(.active) {
    background: var(--bg-hover);
    color: var(--text-primary);
}

/* ===== Tests Panel ===== */
.test-btn-row {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 8px;
}

.test-results {
    font-family: monospace;
    font-size: 11px;
    max-height: 200px;
    overflow-y: auto;
    padding: 4px;
    border-radius: 4px;
    background: rgba(0, 0, 0, 0.25);
}

.test-line {
    padding: 2px 0;
}

.test-line.heading {
    font-weight: 700;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border);
    margin-bottom: 2px;
}

.test-line.test-ok {
    color: #2ecc71;
}

.test-line.test-fail {
    color: #e74c3c;
    font-weight: 700;
}

.test-line.pass {
    color: #2ecc71;
    font-weight: 700;
    margin-top: 4px;
}

.test-line.fail {
    color: #e74c3c;
    font-weight: 700;
    margin-top: 4px;
}

/* ===== Viewport Column (wraps 3D viewport + bottom bar) ===== */
#viewportColumn {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-width: 0;
    min-height: 0;
}

/* ===== DYNAMIC: Bottom Bar – resizable in Y direction via drag handle =====
   The user can drag #bottombarHandle up/down to change the bar height.
   All panels placed inside #bottomPanels are scalable: they fill the
   bar height and scroll internally when their content overflows. ===== */

#bottombarHandle {
    height: 6px;
    background: var(--border);
    cursor: ns-resize;
    flex-shrink: 0;
    transition: background 0.15s;
    position: relative;
    z-index: 2;
}

#bottombarHandle:hover,
#bottombarHandle.active {
    background: var(--accent);
}

#bottombar {
    height: 12px;
    min-height: 6px;
    background: var(--bg-panel);
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: row;
    flex-shrink: 0;
    overflow: hidden;
}

#bottomPanels {
    display: flex;
    flex-direction: row;
    width: 100%;
    height: 100%;
}

/* DYNAMIC: Panels inside the bottom bar are scalable –
   they stretch to the full bar height and scroll their own content. */
#bottombar .panel,
#bottomPanels .panel {
    min-width: 260px;
    height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
    flex-shrink: 0;
    border-right: 1px solid var(--border);
    border-bottom: none;
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
}

#bottombar .panel::-webkit-scrollbar,
#bottomPanels .panel::-webkit-scrollbar {
    width: 6px;
}

#bottombar .panel::-webkit-scrollbar-track,
#bottomPanels .panel::-webkit-scrollbar-track {
    background: transparent;
}

#bottombar .panel::-webkit-scrollbar-thumb,
#bottomPanels .panel::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}