/* ============================================
   Censor Photo - SURITD TOOLS Design System
   All classes prefixed with cp- so global
   custom_styles.css selectors never collide.
   Light is default; [data-theme="dark"] overrides.
   ============================================ */

:root {
    --cp-transition: 0.25s;
    --cp-accent: #3399cc;
    --cp-accent-light: rgba(51, 153, 204, 0.12);
    --cp-accent-dark: #2980b9;
    --cp-accent-shadow: 0 4px 14px rgba(51, 153, 204, 0.25);
    --cp-accent-shadow-hover: 0 6px 20px rgba(51, 153, 204, 0.35);
    --cp-blur: #3399cc;
    --cp-pixelate: #339966;
    --cp-blackbar: #444444;
    --cp-colorbar: #e64e4e;
    --cp-bg: #f8fafc;
    --cp-bg-elevated: #ffffff;
    --cp-bg-secondary: #f1f5f9;
    --cp-bg-tertiary: #e2e8f0;
    --cp-text: #1e293b;
    --cp-text-secondary: #555555;
    --cp-text-muted: #64748b;
    --cp-border: #e2e8f0;
    --cp-border-light: #f1f5f9;
    --cp-shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --cp-shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
    --cp-shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
    --cp-shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1);
    --cp-radius-sm: 6px;
    --cp-radius-md: 12px;
    --cp-radius-lg: 16px;
    --cp-radius-xl: 24px;
    --cp-radius-full: 9999px;
    --cp-checker-light: #f0f0f0;
    --cp-input-bg: #ffffff;
    --cp-danger: #e64e4e;
    --cp-danger-light: rgba(230, 78, 78, 0.1);
    --cp-success: #339966;
    --cp-success-light: rgba(51, 153, 102, 0.1);
}

[data-theme="dark"] {
    --cp-accent: #60a5fa;
    --cp-accent-light: rgba(96, 165, 250, 0.15);
    --cp-accent-dark: #3b82f6;
    --cp-accent-shadow: 0 4px 14px rgba(96, 165, 250, 0.2);
    --cp-accent-shadow-hover: 0 6px 20px rgba(96, 165, 250, 0.3);
    --cp-blur: #60a5fa;
    --cp-pixelate: #4ade80;
    --cp-blackbar: #9ca3af;
    --cp-colorbar: #f87171;
    --cp-bg: #0f172a;
    --cp-bg-elevated: #1e293b;
    --cp-bg-secondary: #334155;
    --cp-bg-tertiary: #475569;
    --cp-text: #f1f5f9;
    --cp-text-secondary: #cbd5e1;
    --cp-text-muted: #94a3b8;
    --cp-border: #334155;
    --cp-border-light: #475569;
    --cp-shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --cp-shadow-md: 0 4px 6px -1px rgba(0,0,0,0.4);
    --cp-shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.4);
    --cp-shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.5);
    --cp-checker-light: #334155;
    --cp-input-bg: #334155;
    --cp-danger: #f87171;
    --cp-danger-light: rgba(248, 113, 113, 0.15);
    --cp-success: #4ade80;
    --cp-success-light: rgba(74, 222, 128, 0.15);
}

/* ============================================ Container & Header */
.cp-container { max-width: 1000px; margin: 0 auto; padding: 2rem; }
.cp-header { text-align: center; margin-bottom: 2rem; }
.cp-title-row { display: flex; align-items: center; justify-content: center; gap: 1rem; margin-bottom: 1rem; }
.cp-icon-wrapper { width: 56px; height: 56px; background: var(--cp-accent); border-radius: var(--cp-radius-lg); display: flex; align-items: center; justify-content: center; color: #fff; box-shadow: var(--cp-accent-shadow); flex-shrink: 0; transition: background-color var(--cp-transition); }
.cp-icon-wrapper svg, .cp-icon-wrapper i { width: 26px; height: 26px; }
.cp-title { font-size: clamp(1.75rem, 4vw, 2.25rem); font-weight: 700; margin: 0; color: var(--cp-accent); letter-spacing: -0.02em; }
.cp-description { font-size: 1.05rem; color: var(--cp-text-secondary); max-width: 800px; margin: 0 auto; line-height: 1.7; }
.cp-description a { color: var(--cp-accent); text-decoration: none; font-weight: 500; }
.cp-description a:hover { text-decoration: underline; }

/* ============================================ Main Tool Area */
.cp-main { background: var(--cp-bg-elevated); border-radius: var(--cp-radius-xl); box-shadow: var(--cp-shadow-lg); overflow: hidden; border: 1px solid var(--cp-border); margin-bottom: 2rem; transition: background-color var(--cp-transition), border-color var(--cp-transition); }

/* ============================================ Privacy Badge */
.cp-privacy-badge { display: flex; align-items: center; justify-content: center; gap: 0.5rem; padding: 0.6rem 1rem; background: var(--cp-success-light); color: var(--cp-success); font-size: 0.82rem; font-weight: 600; }
.cp-privacy-badge svg, .cp-privacy-badge i { flex-shrink: 0; }

/* ============================================ Upload */
.cp-upload-section { padding: 3rem; }
.cp-upload-area { border: 2px dashed var(--cp-border); border-radius: var(--cp-radius-lg); padding: 3rem 2rem; text-align: center; cursor: pointer; transition: all 0.3s ease; background: var(--cp-bg-secondary); position: relative; overflow: hidden; }
.cp-upload-area::before { content: ''; position: absolute; inset: 0; background: var(--cp-accent-light); opacity: 0; transition: opacity 0.3s ease; }
.cp-upload-area:hover, .cp-upload-area.cp-drag-over { border-color: var(--cp-accent); background: var(--cp-bg); transform: translateY(-2px); box-shadow: var(--cp-shadow-md); }
.cp-upload-area:hover::before, .cp-upload-area.cp-drag-over::before { opacity: 0.5; }
.cp-upload-content { position: relative; z-index: 1; }
.cp-upload-icon { color: var(--cp-accent); margin-bottom: 1.25rem; transition: transform 0.3s ease; }
.cp-upload-area:hover .cp-upload-icon { transform: translateY(-4px); }
.cp-upload-title { font-size: 1.4rem; font-weight: 600; color: var(--cp-text); margin: 0 0 0.5rem; }
.cp-upload-subtitle { color: var(--cp-text-secondary); margin: 0 0 1rem; font-size: 1rem; }
.cp-file-types { display: flex; gap: 0.5rem; justify-content: center; flex-wrap: wrap; margin-bottom: 1rem; }
.cp-file-type-badge { background: var(--cp-accent-light); color: var(--cp-accent); padding: 0.3rem 0.8rem; border-radius: var(--cp-radius-full); font-size: 0.8rem; font-weight: 600; }
.cp-upload-actions { display: flex; align-items: center; justify-content: center; gap: 1rem; flex-wrap: wrap; }
.cp-upload-hint { display: inline-flex; align-items: center; gap: 0.5rem; color: var(--cp-text-muted); font-size: 0.875rem; }
.cp-paste-upload-btn { display: inline-flex; align-items: center; gap: 0.4rem; padding: 0.5rem 1rem; background: var(--cp-bg-elevated); border: 1px solid var(--cp-border); border-radius: var(--cp-radius-full); cursor: pointer; color: var(--cp-accent); font-size: 0.85rem; font-weight: 600; transition: all 0.2s ease; }
.cp-paste-upload-btn:hover { background: var(--cp-accent); color: #fff; border-color: var(--cp-accent); }

/* ============================================ Batch Strip */
.cp-batch-strip { display: flex; align-items: center; gap: 0.5rem; padding: 0.6rem 1rem; background: var(--cp-bg-secondary); border-bottom: 1px solid var(--cp-border); overflow-x: auto; transition: background-color var(--cp-transition); }
.cp-batch-strip-inner { display: flex; gap: 0.4rem; overflow-x: auto; flex: 1; }
.cp-batch-strip-inner::-webkit-scrollbar { height: 4px; }
.cp-batch-strip-inner::-webkit-scrollbar-thumb { background: var(--cp-text-muted); border-radius: 2px; }
.cp-batch-thumb { width: 52px; height: 52px; border-radius: var(--cp-radius-sm); border: 2px solid var(--cp-border); overflow: hidden; cursor: pointer; flex-shrink: 0; position: relative; transition: border-color 0.2s ease; }
.cp-batch-thumb img { width: 100%; height: 100%; object-fit: cover; }
.cp-batch-thumb.cp-active { border-color: var(--cp-accent); box-shadow: 0 0 0 2px var(--cp-accent-light); }
.cp-batch-thumb .cp-batch-remove { position: absolute; top: -4px; right: -4px; width: 18px; height: 18px; background: var(--cp-danger); color: #fff; border: none; border-radius: 50%; font-size: 10px; line-height: 1; cursor: pointer; display: none; align-items: center; justify-content: center; padding: 0; }
.cp-batch-thumb:hover .cp-batch-remove { display: flex; }
.cp-batch-thumb .cp-batch-check { position: absolute; bottom: 2px; right: 2px; width: 14px; height: 14px; background: var(--cp-success); color: #fff; border-radius: 50%; display: none; align-items: center; justify-content: center; font-size: 8px; }
.cp-batch-thumb.cp-edited .cp-batch-check { display: flex; }
.cp-batch-add-btn { width: 52px; height: 52px; border-radius: var(--cp-radius-sm); border: 2px dashed var(--cp-border); background: transparent; cursor: pointer; color: var(--cp-text-muted); flex-shrink: 0; display: flex; align-items: center; justify-content: center; transition: all 0.2s ease; }
.cp-batch-add-btn:hover { border-color: var(--cp-accent); color: var(--cp-accent); }

/* ============================================ File Info Bar */
.cp-file-info-bar { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 0.75rem; padding: 0.6rem 1rem; background: var(--cp-bg-secondary); border-bottom: 1px solid var(--cp-border); transition: background-color var(--cp-transition); }
.cp-file-info-left { display: flex; flex-wrap: wrap; gap: 1rem; }
.cp-file-info-item { display: flex; align-items: center; gap: 0.35rem; color: var(--cp-text); font-size: 0.82rem; }
.cp-file-info-item svg, .cp-file-info-item i { color: var(--cp-accent); }
.cp-zoom-controls { display: flex; align-items: center; gap: 0.3rem; }
.cp-zoom-btn { display: flex; align-items: center; justify-content: center; width: 30px; height: 30px; background: var(--cp-bg-elevated); border: 1px solid var(--cp-border); border-radius: var(--cp-radius-sm); cursor: pointer; color: var(--cp-text-muted); transition: all 0.2s ease; }
.cp-zoom-btn:hover { background: var(--cp-accent-light); border-color: var(--cp-accent); color: var(--cp-accent); }
.cp-zoom-level { min-width: 44px; text-align: center; font-size: 0.78rem; font-weight: 600; color: var(--cp-accent); font-variant-numeric: tabular-nums; }

/* ============================================ Canvas Toolbar */
.cp-canvas-toolbar { display: flex; align-items: center; gap: 0.35rem; padding: 0.5rem 1rem; background: var(--cp-bg-elevated); border-bottom: 1px solid var(--cp-border); flex-wrap: wrap; transition: background-color var(--cp-transition); }
.cp-toolbar-btn { display: inline-flex; align-items: center; gap: 0.35rem; padding: 0.4rem 0.7rem; background: var(--cp-bg-secondary); border: 1px solid var(--cp-border); border-radius: var(--cp-radius-sm); cursor: pointer; color: var(--cp-text-muted); font-size: 0.78rem; font-weight: 500; transition: all 0.2s ease; white-space: nowrap; }
.cp-toolbar-btn:hover { background: var(--cp-accent-light); border-color: var(--cp-accent); color: var(--cp-accent); }
.cp-toolbar-btn.cp-active { background: var(--cp-accent-light); border-color: var(--cp-accent); color: var(--cp-accent); }
.cp-toolbar-btn.cp-loading { opacity: 0.7; pointer-events: none; }
.cp-toolbar-sep { width: 1px; height: 24px; background: var(--cp-border); margin: 0 0.25rem; flex-shrink: 0; }

/* ============================================ Editor Layout */
.cp-editor-section { background: var(--cp-bg-elevated); transition: background-color var(--cp-transition); animation: cpFadeIn 0.3s ease; }
.cp-editor-layout { display: flex; min-height: 480px; }

/* ============================================ Sidebar */
.cp-tools-sidebar { width: 215px; background: var(--cp-bg-secondary); border-right: 1px solid var(--cp-border); padding: 1rem; display: flex; flex-direction: column; gap: 1rem; overflow-y: auto; max-height: 640px; transition: background-color var(--cp-transition); }
.cp-tools-group { display: flex; flex-direction: column; gap: 0.4rem; min-width: 0; }
.cp-tools-label { display: flex; align-items: center; gap: 0.35rem; font-size: 0.72rem; font-weight: 600; color: var(--cp-text-muted); text-transform: uppercase; letter-spacing: 0.5px; }
.cp-tools-label svg, .cp-tools-label i { color: var(--cp-accent); }

.cp-tool-buttons { display: grid; grid-template-columns: 1fr 1fr; gap: 0.35rem; }
.cp-tool-btn { display: flex; flex-direction: column; align-items: center; gap: 0.15rem; padding: 0.55rem 0.3rem; background: var(--cp-bg-elevated); border: 2px solid var(--cp-border); border-radius: var(--cp-radius-sm); cursor: pointer; transition: all 0.2s ease; color: var(--cp-text-muted); }
.cp-tool-btn span { font-size: 0.68rem; font-weight: 600; }
.cp-tool-btn:hover { border-color: var(--cp-accent); color: var(--cp-accent); }
.cp-tool-btn.cp-active { background: var(--cp-accent-light); border-color: var(--cp-accent); color: var(--cp-accent); }

.cp-shape-buttons { display: flex; gap: 0.35rem; }
.cp-shape-btn { flex: 1; display: flex; align-items: center; justify-content: center; padding: 0.5rem; background: var(--cp-bg-elevated); border: 2px solid var(--cp-border); border-radius: var(--cp-radius-sm); cursor: pointer; transition: all 0.2s ease; color: var(--cp-text-muted); }
.cp-shape-btn:hover { border-color: var(--cp-accent); color: var(--cp-accent); }
.cp-shape-btn.cp-active { background: var(--cp-accent-light); border-color: var(--cp-accent); color: var(--cp-accent); }

.cp-slider-control { display: flex; align-items: center; gap: 0.6rem; }
.cp-slider-control input[type="range"] { flex: 1; min-width: 0; height: 5px; border-radius: var(--cp-radius-full); background: var(--cp-border); -webkit-appearance: none; appearance: none; cursor: pointer; }
.cp-slider-control input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 15px; height: 15px; border-radius: 50%; background: var(--cp-accent); cursor: pointer; box-shadow: var(--cp-shadow-sm); }
.cp-slider-control input[type="range"]::-moz-range-thumb { width: 15px; height: 15px; border-radius: 50%; background: var(--cp-accent); cursor: pointer; border: none; }
.cp-slider-value { min-width: 38px; font-size: 0.82rem; font-weight: 600; color: var(--cp-accent); text-align: right; }

.cp-color-picker-wrapper { display: flex; align-items: center; gap: 0.6rem; }
.cp-color-picker-wrapper input[type="color"] { width: 36px; height: 28px; border: 2px solid var(--cp-border); border-radius: var(--cp-radius-sm); padding: 2px; cursor: pointer; background: var(--cp-bg-elevated); }
.cp-color-picker-wrapper input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; }
.cp-color-picker-wrapper input[type="color"]::-webkit-color-swatch { border: none; border-radius: 3px; }
.cp-color-label { font-size: 0.82rem; font-family: monospace; color: var(--cp-text-secondary); }

.cp-toggle-row { display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; }
.cp-toggle-row span { font-size: 0.78rem; color: var(--cp-text-secondary); font-weight: 500; }
.cp-switch { position: relative; width: 38px; height: 20px; flex-shrink: 0; }
.cp-switch input { opacity: 0; width: 0; height: 0; position: absolute; }
.cp-switch-track { position: absolute; inset: 0; background: var(--cp-bg-tertiary); border: 1px solid var(--cp-border); border-radius: var(--cp-radius-full); cursor: pointer; transition: background 0.2s ease; }
.cp-switch-track::after { content: ''; position: absolute; top: 2px; left: 2px; width: 14px; height: 14px; background: #fff; border-radius: 50%; transition: transform 0.2s ease; box-shadow: var(--cp-shadow-sm); }
.cp-switch input:checked + .cp-switch-track { background: var(--cp-accent); border-color: var(--cp-accent); }
.cp-switch input:checked + .cp-switch-track::after { transform: translateX(18px); }

/* Presets */
.cp-presets-list { display: flex; flex-direction: column; gap: 0.25rem; }
.cp-preset-btn { display: flex; align-items: center; gap: 0.4rem; width: 100%; padding: 0.45rem 0.6rem; background: var(--cp-bg-elevated); border: 1px solid var(--cp-border); border-radius: var(--cp-radius-sm); cursor: pointer; color: var(--cp-text-secondary); font-size: 0.78rem; font-weight: 500; transition: all 0.2s ease; text-align: left; }
.cp-preset-btn:hover { background: var(--cp-accent-light); border-color: var(--cp-accent); color: var(--cp-accent); }
.cp-preset-btn svg, .cp-preset-btn i { color: var(--cp-accent); flex-shrink: 0; }

/* Regions List */
.cp-regions-group { flex: 1; min-height: 0; }
.cp-regions-list { max-height: 120px; overflow-y: auto; display: flex; flex-direction: column; gap: 0.2rem; }
.cp-regions-list::-webkit-scrollbar { width: 4px; }
.cp-regions-list::-webkit-scrollbar-thumb { background: var(--cp-text-muted); border-radius: 2px; }
.cp-regions-empty { font-size: 0.75rem; color: var(--cp-text-muted); font-style: italic; padding: 0.4rem 0; }
.cp-region-item { display: flex; align-items: center; gap: 0.35rem; padding: 0.3rem 0.5rem; background: var(--cp-bg-elevated); border: 1px solid var(--cp-border); border-radius: var(--cp-radius-sm); font-size: 0.72rem; color: var(--cp-text-secondary); }
.cp-region-item .cp-region-icon { color: var(--cp-accent); flex-shrink: 0; }
.cp-region-item .cp-region-label { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cp-region-item .cp-region-delete { width: 18px; height: 18px; background: none; border: none; cursor: pointer; color: var(--cp-text-muted); display: flex; align-items: center; justify-content: center; border-radius: 3px; transition: all 0.15s; flex-shrink: 0; padding: 0; }
.cp-region-item .cp-region-delete:hover { color: var(--cp-danger); background: var(--cp-danger-light); }

/* Actions */
.cp-actions-group { margin-top: auto; padding-top: 0.75rem; border-top: 1px solid var(--cp-border); }
.cp-action-btn { display: flex; align-items: center; justify-content: center; gap: 0.35rem; width: 100%; padding: 0.5rem; background: var(--cp-bg-elevated); border: 1px solid var(--cp-border); border-radius: var(--cp-radius-sm); cursor: pointer; transition: all 0.2s ease; color: var(--cp-text-secondary); font-size: 0.82rem; font-weight: 500; margin-bottom: 0.35rem; }
.cp-action-btn:last-child { margin-bottom: 0; }
.cp-action-btn:hover:not(:disabled) { background: var(--cp-bg-tertiary); border-color: var(--cp-text-muted); }
.cp-action-btn:disabled { opacity: 0.45; cursor: not-allowed; }
.cp-action-btn.cp-clear-btn:hover:not(:disabled) { background: var(--cp-danger-light); border-color: var(--cp-danger); color: var(--cp-danger); }

/* ============================================ Canvas Area */
.cp-canvas-area { flex: 1; display: flex; flex-direction: column; padding: 0.75rem; background: var(--cp-bg-tertiary); transition: background-color var(--cp-transition); min-width: 0; }
.cp-canvas-wrapper { flex: 1; position: relative; overflow: hidden; background-image: linear-gradient(45deg, var(--cp-checker-light) 25%, transparent 25%), linear-gradient(-45deg, var(--cp-checker-light) 25%, transparent 25%), linear-gradient(45deg, transparent 75%, var(--cp-checker-light) 75%), linear-gradient(-45deg, transparent 75%, var(--cp-checker-light) 75%); background-size: 20px 20px; background-position: 0 0, 0 10px, 10px -10px, -10px 0; border-radius: var(--cp-radius-md); border: 1px solid var(--cp-border); min-height: 380px; cursor: crosshair; }
.cp-canvas-wrapper.cp-panning { cursor: grab; }
.cp-canvas-wrapper.cp-panning:active { cursor: grabbing; }
.cp-canvas-viewport { position: absolute; transform-origin: 0 0; will-change: transform; }
.cp-canvas-viewport canvas { position: absolute; top: 0; left: 0; }
#imageCanvas { z-index: 1; }
#gridCanvas { z-index: 2; pointer-events: none; }
#drawCanvas { z-index: 3; }
.cp-canvas-hint { display: flex; align-items: center; justify-content: center; gap: 0.4rem; margin-top: 0.5rem; font-size: 0.78rem; color: var(--cp-text-muted); text-align: center; }
.cp-canvas-hint svg, .cp-canvas-hint i { color: var(--cp-accent); flex-shrink: 0; }

/* Before/After Overlay */
.cp-ba-overlay { position: absolute; inset: 0; z-index: 10; overflow: hidden; cursor: col-resize; }
.cp-ba-overlay canvas { width: 100%; height: 100%; object-fit: contain; }
.cp-ba-slider { position: absolute; top: 0; bottom: 0; width: 3px; background: #fff; box-shadow: 0 0 6px rgba(0,0,0,0.4); z-index: 11; left: 50%; transform: translateX(-50%); }
.cp-ba-handle { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 32px; height: 32px; background: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: 0 2px 8px rgba(0,0,0,0.3); color: var(--cp-text-muted); }
.cp-ba-label { position: absolute; top: 8px; background: rgba(0,0,0,0.6); color: #fff; padding: 0.2rem 0.6rem; border-radius: var(--cp-radius-full); font-size: 0.7rem; font-weight: 600; z-index: 12; pointer-events: none; }
.cp-ba-label-left { left: 8px; }
.cp-ba-label-right { right: 8px; }

/* Detection Overlay */
.cp-detect-overlay { position: absolute; inset: 0; z-index: 20; background: rgba(0,0,0,0.5); display: flex; align-items: center; justify-content: center; border-radius: var(--cp-radius-md); }
.cp-detect-spinner { display: flex; flex-direction: column; align-items: center; gap: 0.75rem; color: #fff; font-size: 0.9rem; font-weight: 500; }
.cp-spin-icon { animation: cpSpin 1s linear infinite; }

/* ============================================ Action Bar */
.cp-action-bar { display: flex; align-items: center; gap: 1.25rem; padding: 0.85rem 1.15rem; border-top: 1px solid var(--cp-border); background: var(--cp-bg-secondary); flex-wrap: wrap; transition: background-color var(--cp-transition); }
.cp-format-select-group { display: flex; align-items: center; gap: 0.4rem; }
.cp-format-select-group label { display: flex; align-items: center; gap: 0.3rem; font-size: 0.88rem; font-weight: 500; color: var(--cp-text-secondary); }
.cp-format-select-group label svg, .cp-format-select-group label i { color: var(--cp-accent); }
.cp-format-select { padding: 0.4rem 0.65rem; border: 1px solid var(--cp-border); border-radius: var(--cp-radius-sm); background: var(--cp-input-bg); color: var(--cp-text); font-size: 0.88rem; cursor: pointer; transition: border-color 0.2s ease; }
.cp-format-select:focus { outline: none; border-color: var(--cp-accent); }
.cp-quality-control { display: flex; align-items: center; gap: 0.4rem; }
.cp-quality-control label { font-size: 0.88rem; color: var(--cp-text-secondary); }
.cp-quality-control input[type="range"] { width: 90px; height: 5px; border-radius: var(--cp-radius-full); background: var(--cp-border); -webkit-appearance: none; appearance: none; cursor: pointer; }
.cp-quality-control input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 13px; height: 13px; border-radius: 50%; background: var(--cp-accent); cursor: pointer; }
.cp-quality-control input[type="range"]::-moz-range-thumb { width: 13px; height: 13px; border-radius: 50%; background: var(--cp-accent); border: none; cursor: pointer; }
#qualityValue { min-width: 32px; font-size: 0.82rem; font-weight: 600; color: var(--cp-accent); }
.cp-action-buttons { display: flex; gap: 0.6rem; margin-left: auto; flex-wrap: wrap; }
.cp-btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem; padding: 0.65rem 1.25rem; border-radius: var(--cp-radius-full); font-size: 0.9rem; font-weight: 600; cursor: pointer; transition: all 0.2s ease; border: none; text-decoration: none; }
.cp-btn svg, .cp-btn i { width: 18px; height: 18px; }
.cp-btn-primary { background: var(--cp-accent); color: #fff; box-shadow: var(--cp-accent-shadow); }
.cp-btn-primary:hover { background: var(--cp-accent-dark); transform: translateY(-1px); box-shadow: var(--cp-accent-shadow-hover); }
.cp-btn-secondary { background: var(--cp-bg-elevated); color: var(--cp-text); border: 1px solid var(--cp-border); }
.cp-btn-secondary:hover { background: var(--cp-bg); border-color: var(--cp-text-muted); }
.cp-btn-download-all { background: var(--cp-success); color: #fff; box-shadow: 0 4px 14px rgba(51,153,102,0.25); }
.cp-btn-download-all:hover { background: #2a7d56; transform: translateY(-1px); }
.cp-btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

/* ============================================ Shortcuts Popover */
.cp-shortcuts-pop { position: absolute; z-index: 30; background: var(--cp-bg-elevated); border: 1px solid var(--cp-border); border-radius: var(--cp-radius-md); box-shadow: var(--cp-shadow-lg); padding: 1rem 1.15rem; max-width: 320px; }
.cp-shortcuts-pop h4 { margin: 0 0 0.6rem; font-size: 0.9rem; color: var(--cp-text); display: flex; align-items: center; gap: 0.4rem; }
.cp-shortcuts-pop h4 svg, .cp-shortcuts-pop h4 i { color: var(--cp-accent); }
.cp-shortcut-row { display: flex; justify-content: space-between; gap: 1rem; font-size: 0.8rem; color: var(--cp-text-secondary); padding: 0.22rem 0; }
.cp-kbd { font-family: monospace; font-size: 0.74rem; background: var(--cp-bg-secondary); border: 1px solid var(--cp-border); border-radius: 4px; padding: 0.1rem 0.4rem; color: var(--cp-text); white-space: nowrap; }

/* ============================================ Error */
.cp-error-display { background: var(--cp-danger-light); border: 1px solid var(--cp-danger); color: var(--cp-danger); padding: 1rem 1.5rem; border-radius: var(--cp-radius-md); margin: 1rem; font-weight: 500; line-height: 1.6; display: flex; align-items: flex-start; gap: 0.75rem; animation: cpFadeIn 0.25s ease; }
.cp-error-display .cp-error-content { flex: 1; }
.cp-error-display .cp-error-contact { display: block; margin-top: 0.35rem; font-size: 0.85rem; font-weight: 400; }
.cp-error-display a { color: var(--cp-danger); text-decoration: underline; font-weight: 600; }
.cp-error-display a:hover { opacity: 0.8; }
.cp-error-close-btn { background: none; border: none; color: var(--cp-danger); cursor: pointer; padding: 0; flex-shrink: 0; opacity: 0.6; transition: opacity 0.2s; display: flex; align-items: center; justify-content: center; width: 24px; height: 24px; border-radius: 4px; }
.cp-error-close-btn:hover { opacity: 1; background: var(--cp-danger-light); }

/* ============================================ Related Tools */
.cp-related-tools { display: flex; align-items: center; flex-wrap: wrap; gap: 0.85rem; padding: 1.1rem 1.4rem; background: var(--cp-bg-elevated); border-radius: var(--cp-radius-lg); margin-bottom: 2rem; border: 1px solid var(--cp-border); box-shadow: var(--cp-shadow-sm); transition: background-color var(--cp-transition); }
.cp-related-label { display: flex; align-items: center; gap: 0.4rem; font-weight: 600; color: var(--cp-text); font-size: 0.88rem; }
.cp-related-label svg, .cp-related-label i { color: var(--cp-accent); }
.cp-related-links { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.cp-related-link { display: inline-flex; align-items: center; gap: 0.35rem; padding: 0.4rem 0.85rem; background: var(--cp-bg-secondary); border-radius: var(--cp-radius-full); color: var(--cp-text-secondary); text-decoration: none; font-size: 0.82rem; font-weight: 500; transition: all 0.2s ease; border: 1px solid var(--cp-border); }
.cp-related-link:hover { background: var(--cp-accent); color: #fff; border-color: var(--cp-accent); }

/* ============================================ Info Sections */
.cp-info-sections { display: flex; flex-direction: column; gap: 1.5rem; }
.cp-info-card { background: var(--cp-bg-elevated); border: 1px solid var(--cp-border); border-radius: var(--cp-radius-lg); padding: 2rem; transition: background-color var(--cp-transition), border-color var(--cp-transition); }
.cp-info-card h2 { display: flex; align-items: center; gap: 0.7rem; font-size: 1.2rem; color: var(--cp-text); margin: 0 0 1.15rem 0; }
.cp-info-card h2 svg, .cp-info-card h2 i { color: var(--cp-accent); flex-shrink: 0; }
.cp-info-card p { color: var(--cp-text-secondary); line-height: 1.7; margin: 0 0 1rem; }
.cp-info-card p:last-child { margin-bottom: 0; }
.cp-info-card a { color: var(--cp-accent); text-decoration: none; font-weight: 500; }
.cp-info-card a:hover { text-decoration: underline; }

.cp-steps-list { counter-reset: cpstep; list-style: none; padding: 0; margin: 0; }
.cp-steps-list li { position: relative; padding-left: 2.8rem; margin-bottom: 0.8rem; counter-increment: cpstep; color: var(--cp-text-secondary); line-height: 1.6; font-size: 0.95rem; }
.cp-steps-list li:not(:last-child)::after { content: ''; position: absolute; left: calc(0.85rem - 1px); top: 1.9rem; bottom: 0; width: 2px; background: var(--cp-accent-light); }
.cp-steps-list li::before { content: counter(cpstep); position: absolute; left: 0; top: 0; width: 1.75rem; height: 1.75rem; background: var(--cp-accent); color: #fff; border-radius: var(--cp-radius-full); display: flex; align-items: center; justify-content: center; font-weight: 600; font-size: 0.78rem; z-index: 1; }
.cp-steps-list li:last-child { margin-bottom: 0; }

.cp-methods-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 0.85rem; }
.cp-method-item { display: flex; gap: 0.85rem; padding: 1rem; background: var(--cp-bg-secondary); border-radius: var(--cp-radius-md); transition: background-color var(--cp-transition); }
.cp-method-icon { width: 42px; height: 42px; border-radius: var(--cp-radius-sm); display: flex; align-items: center; justify-content: center; flex-shrink: 0; color: #fff; }
.cp-method-icon.cp-blur-icon { background: var(--cp-blur); }
.cp-method-icon.cp-pixelate-icon { background: var(--cp-pixelate); }
.cp-method-icon.cp-blackbar-icon { background: var(--cp-blackbar); }
.cp-method-icon.cp-colorbar-icon { background: var(--cp-colorbar); }
.cp-method-content h4 { margin: 0 0 0.25rem; font-size: 0.92rem; color: var(--cp-text); }
.cp-method-content p { margin: 0; font-size: 0.85rem; color: var(--cp-text-muted); line-height: 1.5; }
.cp-method-content p a { color: var(--cp-accent); }

.cp-use-cases-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 0.6rem; }
.cp-use-case { display: flex; align-items: center; gap: 0.6rem; padding: 0.65rem 0.8rem; background: var(--cp-bg-secondary); border-radius: var(--cp-radius-sm); }
.cp-use-case svg, .cp-use-case i { color: var(--cp-accent); flex-shrink: 0; }
.cp-use-case span { font-size: 0.85rem; color: var(--cp-text-secondary); }

/* ============================================ FAQ - .cp-active accordion */
.cp-faq-list { display: flex; flex-direction: column; gap: 0.5rem; }
.cp-faq-item { border: 1px solid var(--cp-border); border-radius: var(--cp-radius-sm); overflow: hidden; }
.cp-faq-question { width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 0.75rem; padding: 0.8rem 1rem; background: var(--cp-bg-secondary); border: none; cursor: pointer; font-size: 0.92rem; font-weight: 500; color: var(--cp-text); text-align: left; transition: all 0.2s ease; }
.cp-faq-question:hover { background: var(--cp-bg-tertiary); }
.cp-faq-question svg, .cp-faq-question i { flex-shrink: 0; color: var(--cp-accent); transition: transform 0.3s ease; }
.cp-faq-item.cp-active .cp-faq-question svg, .cp-faq-item.cp-active .cp-faq-question i { transform: rotate(180deg); }
.cp-faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.cp-faq-item.cp-active .cp-faq-answer { max-height: 600px; }
.cp-faq-answer p { padding: 0.85rem 1rem; margin: 0; color: var(--cp-text-secondary); line-height: 1.7; border-top: 1px solid var(--cp-border); font-size: 0.9rem; }
.cp-faq-answer p a { color: var(--cp-accent); text-decoration: none; }
.cp-faq-answer p a:hover { text-decoration: underline; }

/* ============================================ Responsive */
@media (max-width: 900px) {
    .cp-editor-layout { flex-direction: column; }
    .cp-tools-sidebar { width: 100%; border-right: none; border-bottom: 1px solid var(--cp-border); flex-direction: row; flex-wrap: wrap; gap: 0.6rem; max-height: none; overflow-y: visible; }
    .cp-tools-group { flex: 1; min-width: 130px; }
    .cp-regions-group { min-width: 100%; }
    .cp-regions-list { max-height: 80px; flex-direction: row; overflow-x: auto; overflow-y: hidden; }
    .cp-actions-group { margin-top: 0; padding-top: 0; border-top: none; flex-direction: row; gap: 0.35rem; display: flex; }
    .cp-action-btn { flex: 1; margin-bottom: 0; }
    .cp-canvas-wrapper { min-height: 320px; }
    .cp-file-info-bar { flex-direction: column; align-items: flex-start; }
    .cp-canvas-toolbar { overflow-x: auto; flex-wrap: nowrap; }
}
@media (max-width: 768px) {
    .cp-container { padding: 1rem; }
    .cp-icon-wrapper { width: 46px; height: 46px; }
    .cp-upload-section { padding: 2rem 1.25rem; }
    .cp-upload-area { padding: 2.5rem 1.25rem; }
    .cp-action-bar { flex-direction: column; align-items: stretch; gap: 0.6rem; }
    .cp-action-buttons { margin-left: 0; }
    .cp-action-buttons .cp-btn { flex: 1; }
    .cp-related-tools { flex-direction: column; align-items: flex-start; }
    .cp-methods-grid { grid-template-columns: 1fr; }
    .cp-use-cases-grid { grid-template-columns: 1fr; }
    .cp-info-card { padding: 1.5rem; }
    .cp-toolbar-btn span { display: none; }
}
@media (max-width: 480px) {
    .cp-title-row { flex-direction: column; gap: 0.75rem; }
    .cp-zoom-controls { width: 100%; justify-content: center; }
    .cp-tool-buttons { grid-template-columns: 1fr; }
    .cp-canvas-wrapper { min-height: 260px; }
    .cp-batch-thumb { width: 42px; height: 42px; }
}

/* ============================================ Utilities */
@keyframes cpFadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
@keyframes cpSpin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; } }