:root {
    --bg-dark: #1a1a2e;
    --bg-medium: #16213e;
    --bg-light: #0f3460;
    --border-color: #444;
    --text-primary: #eee;
    --text-secondary: #888;
    --accent: #0f4c75;
    --accent-hover: #1a6a9a;
    --danger: #c0392b;
    --success: #27ae60;
    --warning: #d29922;
    --highlight: #00ff88;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    overflow: hidden;
    font-size: 13px;
}

/* ===== LAYOUT ===== */
.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* Header */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 16px;
    background: var(--bg-medium);
    border-bottom: 1px solid var(--border-color);
    height: 48px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
}

.logo-icon { font-size: 1.4em; }

.header-actions {
    display: flex;
    gap: 8px;
}

/* Main */
.app-main {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* ===== LEFT TOOLBAR ===== */
.toolbar-left {
    width: 52px;
    background: var(--bg-medium);
    border-right: 1px solid var(--border-color);
    padding: 10px 6px;
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow-y: auto;
}

.tool-section {
    display: flex;
    flex-direction: column;
    gap: 2px;
    width: 100%;
}

.tool-btn {
    width: 38px;
    height: 38px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s;
    margin: 0 auto;
}

.tool-btn svg {
    width: 20px;
    height: 20px;
}

.tool-btn:hover {
    background: var(--bg-light);
    color: var(--text-primary);
}

.tool-btn.active {
    background: var(--accent);
    color: white;
}

.tool-separator {
    height: 1px;
    background: var(--border-color);
    margin: 6px 4px;
}

/* ===== CANVAS AREA ===== */
.canvas-area {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-dark);
    overflow: auto;
}

.canvas-container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.canvas-wrapper {
    position: relative;
    border: 2px solid var(--border-color);
    background: #000;
    image-rendering: pixelated;
    overflow: hidden;
    --pixel-size: 8px;
}

.canvas-bg {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: #000;
    z-index: 0;
}

.reference-container {
    position: absolute;
    z-index: 2;
    overflow: visible;
}

.reference-container.hidden { display: none; }
.reference-container.behind { z-index: 1; }
.reference-container.above { z-index: 20; }

#reference-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: fill;
    image-rendering: pixelated;
    pointer-events: none;
}

.ref-handle {
    position: absolute;
    width: 10px; height: 10px;
    background: var(--accent);
    border: 2px solid white;
    border-radius: 2px;
    cursor: nwse-resize;
    z-index: 25;
}

.ref-handle-tl { top: -5px; left: -5px; cursor: nwse-resize; }
.ref-handle-tr { top: -5px; right: -5px; cursor: nesw-resize; }
.ref-handle-bl { bottom: -5px; left: -5px; cursor: nesw-resize; }
.ref-handle-br { bottom: -5px; right: -5px; cursor: nwse-resize; }

#editor-canvas {
    display: block;
    image-rendering: pixelated;
    cursor: crosshair;
    position: absolute;
    top: 0; left: 0;
    z-index: 5;
}

.canvas-grid {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    pointer-events: none;
    z-index: 15;
    background-image:
        linear-gradient(to right, rgba(255,255,255,0.1) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255,255,255,0.1) 1px, transparent 1px);
    background-size: 8px 8px;
}

.canvas-grid.hidden { display: none; }

.canvas-wrapper.rounded-pixels::after {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    pointer-events: none;
    z-index: 6;
    background-image: radial-gradient(circle at center, transparent 35%, rgba(0,0,0,0.4) 45%, rgba(0,0,0,0.7) 50%);
    background-size: var(--pixel-size) var(--pixel-size);
}

/* ===== RIGHT PANEL ===== */
.panel-right {
    width: 260px;
    background: var(--bg-medium);
    border-left: 1px solid var(--border-color);
    overflow-y: auto;
}

.panel-section {
    background: var(--bg-light);
    margin: 8px;
    border-radius: 10px;
    overflow: hidden;
}

.panel-section:hover {
    background: var(--bg-light);
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 12px;
    cursor: pointer;
    font-size: 0.85em;
    font-weight: 600;
    color: var(--highlight);
    text-transform: uppercase;
    background: var(--bg-medium);
}

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

.collapse-icon {
    font-size: 0.7em;
    transition: transform 0.2s;
}

.panel-section.collapsed .panel-content { display: none; }
.panel-section.collapsed .collapse-icon { transform: rotate(-90deg); }

.panel-content {
    padding: 10px 12px 14px;
    background: var(--bg-light);
}

.prop-row {
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(48, 54, 61, 0.5);
}

.prop-row:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.prop-row label {
    display: block;
    font-size: 0.75em;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.prop-row input, .prop-row select {
    width: 100%;
    padding: 6px 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-dark);
    color: var(--text-primary);
    font-size: 12px;
}

.prop-row input:focus, .prop-row select:focus {
    outline: none;
    border-color: var(--accent);
}

.select-highlight {
    border: 2px solid var(--accent) !important;
    background: var(--bg-medium) !important;
    font-weight: 500;
}

.prop-row-half {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(48, 54, 61, 0.5);
}

.prop-row-half:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.prop-row-half label {
    display: block;
    font-size: 0.75em;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.prop-row-half input, .prop-row-half select {
    width: 100%;
    padding: 6px 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-dark);
    color: var(--text-primary);
    font-size: 12px;
}

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

.color-row input[type="color"] {
    width: 32px;
    height: 26px;
    padding: 0;
    border: none;
    cursor: pointer;
    flex-shrink: 0;
}

.color-value {
    font-size: 0.7em;
    color: var(--text-secondary);
    font-family: monospace;
}

.format-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.btn-mini, .btn-preset {
    padding: 3px 6px;
    font-size: 0.7em;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 3px;
    cursor: pointer;
}

.btn-mini:hover, .btn-preset:hover {
    background: var(--accent);
    border-color: var(--accent);
}

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

.sprite-row select { flex: 1; }

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    font-size: 0.85em;
}

.checkbox-label input { width: auto; }

/* Layers */
.layers-list {
    max-height: 180px;
    overflow-y: auto;
}

.layer-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 8px;
    background: var(--bg-light);
    border-radius: 4px;
    margin-bottom: 4px;
    cursor: pointer;
    font-size: 0.8em;
}

.layer-item:hover { background: var(--bg-dark); }

.layer-item.selected {
    background: var(--accent);
    color: white;
}

.layer-item .layer-type {
    font-size: 0.7em;
    color: var(--text-secondary);
    background: var(--bg-medium);
    padding: 2px 5px;
    border-radius: 3px;
}

.layer-item.selected .layer-type {
    background: rgba(255,255,255,0.2);
    color: white;
}

/* Tools grid */
.tools-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
}

.btn-tool {
    padding: 6px 8px;
    font-size: 0.8em;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.15s;
}

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

/* Display section */
.display-info {
    background: var(--bg-light);
    padding: 8px 12px;
    border-radius: 4px;
    margin-bottom: 10px;
    font-family: monospace;
    font-size: 0.9em;
    text-align: center;
    color: var(--accent);
}

.display-checks {
    display: flex;
    gap: 16px;
    justify-content: center;
}

.check-option {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.85em;
}

.check-option input {
    width: 16px;
    height: 16px;
}

.check-option:hover {
    color: var(--text-primary);
}

/* ===== FOOTER ===== */
.app-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 16px;
    background: var(--bg-medium);
    border-top: 1px solid var(--border-color);
    height: 44px;
    font-size: 0.85em;
}

.footer-left, .footer-center, .footer-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-left { flex: 1; }
.footer-center { flex: 0 0 auto; }
.footer-right { flex: 1; justify-content: flex-end; }

.footer-left input {
    width: 48px;
    padding: 6px 4px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-light);
    color: var(--text-primary);
    text-align: center;
    font-size: 13px;
    font-weight: 500;
}

.footer-left input[placeholder="AAAA"] { width: 62px; }

.footer-left input::-webkit-inner-spin-button,
.footer-left input::-webkit-outer-spin-button {
    opacity: 1;
    cursor: pointer;
    width: 18px;
    height: 100%;
}

.footer-sep {
    color: var(--border-color);
}

.test-label {
    color: var(--text-secondary);
    font-size: 0.9em;
}

.btn-footer {
    padding: 4px 10px;
    border: 1px solid var(--border-color);
    background: var(--bg-light);
    color: var(--text-primary);
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.85em;
}

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

.btn-live { color: var(--success); border-color: var(--success); }
.btn-live:hover { background: var(--success); color: white; }

/* Zoom control - centered and prominent */
.zoom-control {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-light);
    padding: 4px 12px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.btn-zoom {
    width: 26px;
    height: 26px;
    border: 1px solid var(--border-color);
    background: var(--bg-medium);
    color: var(--text-primary);
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    font-size: 1.1em;
}

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

#zoom-level {
    min-width: 32px;
    text-align: center;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1em;
}

/* ===== BUTTONS ===== */
.btn {
    padding: 8px 12px;
    border: none;
    border-radius: 5px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.15s;
}

.btn:hover { opacity: 0.85; }

.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: var(--accent-hover); opacity: 1; }

.btn-secondary {
    background: var(--bg-light);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}
.btn-secondary:hover { background: var(--bg-medium); opacity: 1; }

.btn-success { background: var(--success); color: white; }
.btn-danger { background: var(--danger); color: white; }
.btn-info { background: #17a2b8; color: white; }
.btn-warning { background: #f0ad4e; color: #333; }
.btn-purple { background: #8e44ad; color: white; }

.btn-small { padding: 5px 10px; font-size: 11px; }

/* ===== MODALS ===== */
.modal {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.7);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active { display: flex; }

.modal-content {
    background: var(--bg-medium);
    border-radius: 8px;
    width: 90%;
    max-width: 600px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
}

.modal-large { max-width: 800px; }

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 { margin: 0; font-size: 1em; }

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.4em;
    cursor: pointer;
}

.modal-close:hover { color: var(--text-primary); }

.modal-body {
    padding: 16px;
    flex: 1;
    overflow: auto;
}

.modal-body textarea {
    width: 100%;
    height: 250px;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-dark);
    color: var(--text-primary);
    font-family: monospace;
    font-size: 0.85em;
    resize: vertical;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 12px 16px;
    border-top: 1px solid var(--border-color);
}

/* Reference popup */
.ref-load-btn {
    display: block;
    width: 100%;
    padding: 12px;
    background: var(--bg-light);
    border: 2px dashed var(--border-color);
    border-radius: 6px;
    text-align: center;
    color: var(--text-secondary);
    cursor: pointer;
}

.ref-load-btn:hover { border-color: var(--accent); color: var(--accent); }

.ref-options {
    margin-top: 12px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.ref-option-row {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.ref-option-row label { font-size: 0.8em; color: var(--text-secondary); }
.ref-option-row input[type="range"] { width: 100%; }

/* Image tool */
.image-tool-container { display: flex; flex-direction: column; gap: 16px; }

.image-tool-input {
    text-align: center;
    padding: 24px;
    border: 2px dashed var(--border-color);
    border-radius: 8px;
}

.image-tool-preview { display: flex; flex-direction: column; gap: 16px; }

.crop-section { text-align: center; }
.crop-section h4 { margin-bottom: 8px; color: var(--text-secondary); font-weight: normal; font-size: 0.9em; }

.crop-container {
    position: relative;
    display: inline-block;
    border: 1px solid var(--border-color);
    background: #000;
    cursor: crosshair;
}

#crop-canvas { display: block; }

.crop-selection {
    position: absolute;
    border: 2px dashed var(--accent);
    background: rgba(88,166,255,0.2);
    pointer-events: none;
    display: none;
}

.crop-selection.active { display: block; }

.crop-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    margin-top: 8px;
}

#crop-info { font-size: 0.8em; color: var(--text-secondary); }

.preview-row { display: flex; justify-content: center; gap: 24px; flex-wrap: wrap; }

.preview-box { text-align: center; }
.preview-box h4 { margin-bottom: 8px; color: var(--text-secondary); font-weight: normal; font-size: 0.9em; }
.preview-box canvas { border: 1px solid var(--border-color); background: #000; image-rendering: pixelated; }

.image-tool-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 12px;
    padding: 12px;
    background: var(--bg-dark);
    border-radius: 6px;
}

.image-tool-options .form-group { margin-bottom: 0; }
.image-tool-options label { display: block; font-size: 0.8em; color: var(--text-secondary); margin-bottom: 4px; }
.image-tool-options input[type="range"] { width: 100%; }
.image-tool-options select { width: 100%; padding: 4px; background: var(--bg-light); border: 1px solid var(--border-color); color: var(--text-primary); border-radius: 3px; }

/* Sprite Editor */
.modal-large { max-width: 900px !important; width: 95vw; }

.sprite-editor-container { display: flex; gap: 16px; min-height: 400px; }

.sprite-list-section { width: 180px; flex-shrink: 0; }

.sprite-list-header, .frames-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.sprite-list-header h4, .frames-header h4 { margin: 0; font-size: 0.95em; }

.sprite-header-buttons { display: flex; gap: 4px; }

.sprite-list {
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    max-height: 280px;
    overflow-y: auto;
}

.sprite-list-actions {
    display: flex;
    gap: 6px;
    margin-top: 10px;
}

.sprite-list-actions .btn { flex: 1; font-size: 11px; }

.sprite-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 10px;
    cursor: pointer;
    border-bottom: 1px solid var(--border-color);
}

.sprite-item:last-child { border-bottom: none; }
.sprite-item:hover { background: var(--bg-light); }
.sprite-item.selected { background: var(--accent); color: white; }

.sprite-item-info { display: flex; flex-direction: column; }
.sprite-item-name { font-weight: 500; font-size: 0.9em; }
.sprite-item-frames { font-size: 0.75em; color: var(--text-secondary); }
.sprite-item.selected .sprite-item-frames { color: rgba(255,255,255,0.7); }

.sprite-item-delete {
    background: none;
    border: none;
    color: var(--danger);
    font-size: 1.1em;
    cursor: pointer;
    opacity: 0.6;
}

.sprite-item-delete:hover { opacity: 1; }

.frames-section { flex: 1; display: flex; flex-direction: column; }

.frames-and-preview { display: flex; gap: 16px; flex: 1; }

.frames-list-container { flex: 1; display: flex; flex-direction: column; gap: 12px; }

.frames-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 12px;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    min-height: 80px;
    max-height: 200px;
    overflow-y: auto;
    align-content: flex-start;
}

.frame-item {
    position: relative;
    width: 56px;
    height: 56px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    cursor: pointer;
    background: #000;
}

.frame-item img { width: 100%; height: 100%; object-fit: contain; image-rendering: pixelated; }
.frame-item:hover { border-color: var(--accent); }

.frame-item-index {
    position: absolute;
    bottom: 2px; left: 2px;
    background: rgba(0,0,0,0.7);
    color: white;
    font-size: 0.65em;
    padding: 1px 3px;
    border-radius: 2px;
}

.frame-item-delete {
    position: absolute;
    top: 2px; right: 2px;
    background: var(--danger);
    color: white;
    border: none;
    width: 16px; height: 16px;
    border-radius: 50%;
    font-size: 0.7em;
    cursor: pointer;
    opacity: 0;
}

.frame-item:hover .frame-item-delete { opacity: 1; }

.sprite-preview { width: 160px; flex-shrink: 0; text-align: center; }
.sprite-preview h4 { margin-bottom: 8px; font-size: 0.85em; color: var(--text-secondary); }

#sprite-preview-canvas { border: 1px solid var(--border-color); background: #000; image-rendering: pixelated; }

.preview-controls { display: flex; justify-content: center; align-items: center; gap: 12px; margin-top: 8px; }
#sprite-frame-info { font-size: 0.8em; color: var(--text-secondary); }

/* Pixel Editor */
.pixel-editor-section {
    padding: 12px;
    border: 1px solid var(--accent);
    border-radius: 8px;
    background: var(--bg-light);
}

.pixel-tools {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 10px;
}

.pixel-tool-row { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.pixel-tool-row label { font-size: 11px; color: var(--text-secondary); }

.pixel-tool { padding: 6px 8px !important; font-size: 14px !important; }
.pixel-tool.active { background: var(--accent) !important; color: white !important; }

.pixel-canvas-wrapper { border: 2px solid var(--border-color); background: #0a0a0a; display: inline-block; border-radius: 4px; margin-bottom: 10px; }
#pixel-editor-canvas { image-rendering: pixelated; cursor: crosshair; max-width: 100%; }

.pixel-palette { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }

.current-color-display { display: flex; gap: 4px; align-items: center; }
#pixel-current-color { width: 28px; height: 28px; border: 2px solid #fff; border-radius: 4px; }
#pixel-color-picker { width: 28px; height: 28px; }

.color-presets { display: flex; gap: 3px; flex-wrap: wrap; }

.color-preset {
    width: 20px; height: 20px;
    border: 2px solid transparent;
    border-radius: 3px;
    cursor: pointer;
}

.color-preset:hover { transform: scale(1.1); }
.color-preset.selected { border-color: #fff; }

.pixel-editor-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.pixel-editor-actions .btn { padding: 8px 12px; font-size: 12px; }

.pixel-tools input[type="number"] { width: 50px; padding: 4px; text-align: center; }

/* Frame item clickable and draggable */
.frame-item { cursor: pointer; transition: transform 0.1s, border-color 0.1s, opacity 0.1s; }
.frame-item:hover { transform: scale(1.05); border-color: var(--accent); }
.frame-item.dragging { opacity: 0.5; cursor: grabbing; }
.frame-item.drag-over { border-color: var(--highlight); transform: scale(1.1); }

.frame-item-add {
    display: flex;
    align-items: center;
    justify-content: center;
    border-style: dashed;
    background: transparent;
}

.frame-item-add:hover { background: var(--bg-light); }

.frame-add-icon {
    font-size: 24px;
    color: var(--text-secondary);
}

/* Batch Thumbnails */
.batch-input-section {
    text-align: center;
    padding: 16px;
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    margin-bottom: 16px;
}

.batch-buttons { display: flex; gap: 8px; justify-content: center; }

.batch-actions {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

.batch-results {
    min-height: 150px;
    padding: 12px;
    background: var(--bg-dark);
    border-radius: 6px;
}

.batch-thumbs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
    gap: 12px;
    margin-top: 12px;
}

.batch-thumb-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 8px;
    background: var(--bg-medium);
    border-radius: 6px;
}

.batch-thumb-item img {
    width: 56px; height: 56px;
    border: 1px solid var(--border-color);
    background: #000;
    image-rendering: pixelated;
}

.batch-thumb-item span {
    font-size: 0.7em;
    color: var(--text-secondary);
    text-align: center;
    word-break: break-all;
    max-width: 80px;
}

/* Form groups */
.form-group { margin-bottom: 10px; }
.form-group label { display: block; font-size: 0.8em; color: var(--text-secondary); margin-bottom: 4px; }

.form-group input[type="text"],
.form-group input[type="number"],
.form-group select {
    width: 100%;
    padding: 6px 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-light);
    color: var(--text-primary);
}

.form-group input:focus, .form-group select:focus { outline: none; border-color: var(--accent); }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--bg-light); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-color); }

/* Hidden */
.hidden { display: none !important; }

/* Help tooltip */
.help-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    font-size: 10px;
    font-weight: bold;
    background: var(--accent);
    color: var(--text-primary);
    border-radius: 50%;
    cursor: pointer;
    margin-left: 6px;
    transition: background 0.2s;
}
.help-icon:hover { background: var(--accent-hover); }

.help-tooltip {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-medium);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 10px;
    margin-top: 8px;
    z-index: 100;
    box-shadow: 0 4px 12px rgba(0,0,0,0.4);
    max-height: 350px;
    overflow-y: auto;
}
.help-tooltip.visible { display: block; }

.tooltip-title {
    font-weight: bold;
    color: var(--accent-hover);
    margin-bottom: 8px;
    font-size: 0.9em;
}

.tooltip-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85em;
}
.tooltip-table th, .tooltip-table td {
    padding: 4px 6px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}
.tooltip-table th {
    color: var(--text-secondary);
    font-weight: normal;
}
.tooltip-table td:first-child {
    font-family: monospace;
    color: var(--highlight);
}
.tooltip-table tr:last-child td { border-bottom: none; }

#fg-content { position: relative; }