:root{--bg-primary: #0d1117;--bg-secondary: #161b22;--bg-tertiary: #1c2128;--bg-elevated: #21262d;--text-primary: #e6edf3;--text-secondary: #8b949e;--text-tertiary: #6e7681;--text-on-accent: #ffffff;--accent-primary: #58a6ff;--accent-secondary: #764ba2;--accent-gradient: linear-gradient(135deg, #667eea, #764ba2);--accent-gradient-hover: linear-gradient(135deg, #7b93ff, #8b5fb8);--color-success: #3fb950;--color-warning: #d29922;--color-error: #f85149;--color-info: #58a6ff;--border-default: #30363d;--border-muted: #21262d;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 20px;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .3);--shadow-md: 0 4px 12px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 30px rgba(0, 0, 0, .5);--shadow-glow: 0 0 20px rgba(88, 166, 255, .15);--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;font-family:var(--font-family);background:var(--bg-primary);color:var(--text-primary);line-height:1.5;-webkit-font-smoothing:antialiased}#app{min-height:100vh;display:flex;flex-direction:column}.app-header{display:flex;align-items:center;gap:16px;padding:16px 24px;background:var(--bg-secondary);border-bottom:1px solid var(--border-default);z-index:100}.header-brand{display:flex;align-items:center;gap:10px;cursor:pointer;-webkit-user-select:none;user-select:none}.brand-icon{color:var(--accent-primary);filter:drop-shadow(0 0 6px rgba(88,166,255,.4))}.brand-text{font-size:1.2rem;font-weight:700;background:var(--accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.header-subtitle{font-size:.8rem;color:var(--text-secondary);font-weight:400}.env-badge{padding:3px 10px;border-radius:999px;font-size:.68rem;font-weight:700;letter-spacing:.6px;text-transform:uppercase;color:var(--color-warning);background:#d299221f;border:1px solid rgba(210,153,34,.5)}.env-badge.hidden{display:none}.page{display:none;flex:1}.page.active{display:flex}.page-content{flex:1;display:flex;align-items:center;justify-content:center;padding:40px 24px}.panel{background:var(--bg-secondary);border:1px solid var(--border-default);border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow-md)}.panel-title{font-size:1.1rem;font-weight:600;margin-bottom:8px}.panel-desc{font-size:.875rem;color:var(--text-secondary);margin-bottom:20px}.upload-panel{width:100%;max-width:620px}.drop-zone{border:2px dashed var(--border-default);border-radius:var(--radius-md);padding:40px 24px;text-align:center;cursor:pointer;transition:all .2s ease;background:var(--bg-tertiary);position:relative}.drop-zone:hover,.drop-zone.drag-over{border-color:var(--accent-primary);background:#58a6ff0d;box-shadow:var(--shadow-glow)}.drop-zone.drag-over{transform:scale(1.01)}.drop-icon{color:var(--text-tertiary);margin-bottom:12px}.drop-zone:hover .drop-icon{color:var(--accent-primary)}.drop-text{font-size:.95rem;font-weight:500;margin-bottom:4px}.drop-subtext{font-size:.8rem;color:var(--text-secondary);margin-bottom:8px}.drop-formats{font-size:.75rem;color:var(--text-tertiary)}.drop-zone.busy{pointer-events:none;opacity:.6}.upload-status{margin-top:16px;padding:12px 16px;background:var(--bg-tertiary);border:1px solid var(--border-default);border-radius:var(--radius-md);font-size:.85rem;color:var(--text-secondary);display:flex;align-items:center;gap:10px}.upload-status.hidden{display:none}.spinner{width:16px;height:16px;border:2px solid var(--border-default);border-top-color:var(--accent-primary);border-radius:50%;animation:spin .8s linear infinite;flex-shrink:0}@keyframes spin{to{transform:rotate(360deg)}}.processing-error{margin-top:16px;padding:12px 16px;background:#f851491a;border:1px solid var(--color-error);border-radius:var(--radius-md)}.processing-error.hidden{display:none}.error-text{font-size:.85rem;color:var(--color-error)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border:none;border-radius:var(--radius-md);font-family:var(--font-family);font-size:.875rem;font-weight:500;cursor:pointer;transition:all .2s ease;white-space:nowrap}.btn:disabled{opacity:.4;cursor:not-allowed}.btn-sm{padding:6px 12px;font-size:.8rem}.btn-primary{background:var(--accent-gradient);color:var(--text-on-accent);box-shadow:0 2px 10px #667eea4d}.btn-primary:hover:not(:disabled){background:var(--accent-gradient-hover);transform:translateY(-1px)}.btn-secondary{background:var(--bg-elevated);color:var(--text-primary);border:1px solid var(--border-default)}.btn-secondary:hover:not(:disabled){background:var(--bg-tertiary);border-color:var(--accent-primary)}.btn-ghost{background:transparent;color:var(--text-secondary)}.btn-ghost:hover{color:var(--text-primary);background:#ffffff0d}.btn-full{width:100%}.btn-accent{background:var(--accent-primary);color:var(--text-on-accent);box-shadow:0 2px 10px #58a6ff4d}.btn-accent:hover:not(:disabled){background:#6cb1ff;transform:translateY(-1px)}.auto-btn{margin-bottom:14px}.processing-card{margin-top:16px;padding:16px;background:var(--bg-tertiary);border:1px solid var(--border-default);border-radius:var(--radius-md)}.processing-card.hidden{display:none}.proc-head{display:flex;align-items:center;gap:10px;font-size:.9rem;font-weight:500;color:var(--text-primary)}.proc-meta{display:flex;justify-content:space-between;margin-top:12px;font-size:.8rem;color:var(--text-secondary)}#proc-queue{color:var(--accent-primary);font-weight:500}.proc-bar{height:6px;margin-top:10px;background:var(--bg-elevated);border-radius:3px;overflow:hidden}.proc-bar-fill{height:100%;width:0%;background:var(--accent-gradient);border-radius:3px;transition:width .6s ease}.proc-elapsed{margin-top:8px;font-size:.72rem;color:var(--text-tertiary)}body.is-editor-page{overflow:hidden}body.is-editor-page #app{height:100vh;min-height:0}.editor-layout{display:flex;flex:1;height:calc(100vh - 57px);min-height:0}.editor-viewport{flex:1;position:relative;background:linear-gradient(45deg,#12161c 25%,transparent 25%),linear-gradient(-45deg,#12161c 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#12161c 75%),linear-gradient(-45deg,transparent 75%,#12161c 75%);background-size:24px 24px;background-position:0 0,0 12px,12px -12px,-12px 0;background-color:var(--bg-primary);display:flex;align-items:center;justify-content:center;overflow:hidden}#depth-canvas{max-width:100%;max-height:100%;object-fit:contain;box-shadow:var(--shadow-lg)}.editor-sidebar{width:340px;flex-shrink:0;background:var(--bg-secondary);border-left:1px solid var(--border-default);display:flex;flex-direction:column;min-height:0}.sidebar-top{padding:14px 16px;border-bottom:1px solid var(--border-muted)}.sidebar-scroll{flex:1;overflow-y:auto;padding:16px;min-height:0}.sidebar-bottom{padding:14px 16px;border-top:1px solid var(--border-muted);display:flex;flex-direction:column;gap:8px}.sidebar-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.sidebar-title-row{display:flex;align-items:center;gap:6px}.sidebar-title{font-size:.9rem;font-weight:600}.sidebar-tabs{display:flex;gap:4px;margin-top:12px}.tab-btn{flex:1;padding:7px 4px;font-size:.78rem;font-weight:500;color:var(--text-secondary);background:var(--bg-tertiary);border:1px solid var(--border-default);border-radius:var(--radius-sm);cursor:pointer;transition:all .15s ease}.tab-btn:hover{color:var(--text-primary)}.tab-btn.active{color:var(--text-on-accent);background:var(--accent-gradient);border-color:transparent}.tab-panel{display:none}.tab-panel.active{display:block}.control{display:block;margin-bottom:12px}.control:last-child{margin-bottom:0}.control-label{display:flex;justify-content:space-between;font-size:.8rem;color:var(--text-secondary);margin-bottom:6px}.control-label em{font-style:normal;color:var(--text-primary);font-variant-numeric:tabular-nums}.control-inline{display:flex;align-items:center;gap:10px}.control-inline .control-label{margin-bottom:0}input[type=range]{width:100%;accent-color:var(--accent-primary);cursor:pointer}input[type=checkbox]{width:16px;height:16px;accent-color:var(--accent-primary);cursor:pointer}.sidebar-bottom .btn{margin:0}.control-row{display:flex;align-items:center;justify-content:space-between;gap:12px}.select{width:100%;padding:8px 10px;background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-default);border-radius:var(--radius-sm);font-family:var(--font-family);font-size:.85rem;cursor:pointer}.histogram,.curve-canvas{width:100%;height:auto;display:block;border:1px solid var(--border-default);border-radius:var(--radius-sm);background:var(--bg-primary)}.curve-canvas{touch-action:none;cursor:crosshair}.matte-status{display:flex;align-items:center;gap:8px;font-size:.8rem;color:var(--text-secondary);margin-bottom:12px}.matte-status.hidden{display:none}.bg-controls.disabled{opacity:.45;pointer-events:none}#matte-btn{margin-bottom:12px}.help{display:inline-flex;align-items:center;justify-content:center;width:14px;height:14px;border-radius:50%;background:var(--bg-elevated);border:1px solid var(--border-default);color:var(--text-secondary);font-size:.62rem;font-weight:700;cursor:help;position:relative;-webkit-user-select:none;user-select:none;flex-shrink:0}.help:hover,.help:focus{color:var(--text-primary);border-color:var(--accent-primary);outline:none}#tooltip{position:fixed;max-width:240px;padding:8px 10px;background:var(--bg-elevated);border:1px solid var(--border-default);border-radius:var(--radius-sm);color:var(--text-secondary);font-size:.72rem;line-height:1.4;box-shadow:var(--shadow-md);opacity:0;transition:opacity .12s ease;pointer-events:none;z-index:1000}#tooltip.visible{opacity:1}