:root{--bg: #0b0d11;--panel: #131720;--panel-hover: #191e2a;--border: #222938;--border-focus: #4f46e5;--fg: #f3f4f6;--muted: #9ca3af;--accent: #6366f1;--accent-hover: #4f46e5;--accent-light: rgba(99, 102, 241, .15);--success: #10b981;--danger: #ef4444;--card-bg: rgba(255, 255, 255, .02);--shadow: 0 4px 20px -2px rgba(0, 0, 0, .5);--shadow-lg: 0 10px 30px -5px rgba(0, 0, 0, .7);--font: "Inter", system-ui, -apple-system, sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg);color:var(--fg);font-family:var(--font);min-height:100vh;overflow-x:hidden}.refiner-app{display:flex;flex-direction:column;height:100vh;max-height:100vh}.header{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;background-color:var(--panel);border-bottom:1px solid var(--border);box-shadow:var(--shadow);z-index:10}.brand{display:flex;align-items:center;gap:12px}.logo-badge{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:8px;background:linear-gradient(135deg,var(--accent),#a855f7);color:#fff;font-weight:800;font-size:1.25rem;box-shadow:0 0 12px var(--accent-light)}.brand-text h1{font-size:1.2rem;font-weight:700;letter-spacing:.5px}.brand-text p{font-size:.75rem;color:var(--muted)}.nav-links{display:flex;align-items:center;gap:12px}.nav-btn{text-decoration:none;color:var(--fg);border:1px solid var(--border);background:var(--card-bg);padding:6px 12px;border-radius:6px;font-size:.8rem;font-weight:500;transition:all .2s ease;display:inline-flex;align-items:center;gap:6px}.nav-btn:hover{border-color:var(--accent);background:var(--panel-hover)}.nav-btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.nav-btn.primary:hover{background:var(--accent-hover)}.main-layout{display:flex;flex:1;min-height:0;position:relative}.sidebar{width:380px;min-width:380px;background-color:var(--panel);border-right:1px solid var(--border);display:flex;flex-direction:column;height:100%;min-height:0}.sidebar-scroll{flex:1;overflow-y:auto;padding:20px}.presets-section{background-color:#ffffff04;border:1px solid var(--border);border-radius:8px;padding:12px;margin-bottom:20px}.presets-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;font-size:.75rem;text-transform:uppercase;letter-spacing:.5px;font-weight:700;color:var(--muted)}.preset-controls{display:flex;gap:8px}.preset-select{flex:1;background-color:var(--bg);border:1px solid var(--border);color:var(--fg);border-radius:6px;padding:6px 10px;font-size:.8rem;outline:none}.preset-select:focus{border-color:var(--accent)}.btn-small{padding:6px 10px;background-color:var(--bg);border:1px solid var(--border);color:var(--fg);border-radius:6px;font-size:.8rem;cursor:pointer;transition:all .15s ease}.btn-small:hover{background-color:var(--panel-hover);border-color:var(--muted)}.btn-small.accent{background-color:var(--accent-light);border-color:var(--accent);color:#c7d2fe}.btn-small.accent:hover{background-color:var(--accent);color:#fff}.accordion-item{border:1px solid var(--border);border-radius:8px;margin-bottom:12px;overflow:hidden}.accordion-header{width:100%;display:flex;justify-content:space-between;align-items:center;padding:12px 16px;background-color:#ffffff03;border:none;color:var(--fg);font-size:.875rem;font-weight:600;text-align:left;cursor:pointer;transition:background-color .2s ease}.accordion-header:hover{background-color:#ffffff08}.accordion-header svg{transition:transform .2s ease}.accordion-header.active svg{transform:rotate(90deg)}.accordion-content{padding:16px;background-color:#0000001a;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:16px}.form-group{display:flex;flex-direction:column;gap:6px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.label-wrapper{display:flex;justify-content:space-between;align-items:center;font-size:.75rem;font-weight:600;color:var(--muted)}.label-val{color:var(--accent)}.form-select,.form-input{width:100%;background-color:var(--bg);border:1px solid var(--border);color:var(--fg);border-radius:6px;padding:8px 12px;font-size:.8rem;outline:none;transition:border-color .15s ease}.form-select:focus,.form-input:focus{border-color:var(--border-focus)}.form-range{width:100%;accent-color:var(--accent);cursor:pointer}.checkbox-label{display:flex;align-items:center;gap:8px;font-size:.8rem;cursor:pointer;-webkit-user-select:none;user-select:none}.checkbox-label input{accent-color:var(--accent)}.palette-text-area{font-family:monospace;font-size:.7rem;background-color:var(--bg);border:1px solid var(--border);color:var(--fg);border-radius:6px;padding:8px;resize:vertical;min-height:60px}.picker-row{display:flex;align-items:center;gap:8px}.color-picker{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:32px;height:32px;border-radius:6px;border:1px solid var(--border);background:none;cursor:pointer;padding:0}.color-picker::-webkit-color-swatch-wrapper{padding:0}.color-picker::-webkit-color-swatch{border:none;border-radius:5px}.viewport-panel{flex:1;display:flex;flex-direction:column;background-color:var(--bg);min-height:0;min-width:0}.toolbar{height:52px;border-bottom:1px solid var(--border);background-color:var(--panel);display:flex;align-items:center;justify-content:space-between;padding:0 20px}.toolbar-group{display:flex;align-items:center;gap:8px}.toolbar-title{font-size:.875rem;font-weight:600;color:var(--fg);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:250px}.toolbar-divider{width:1px;height:20px;background-color:var(--border)}.toggle-group{display:flex;border:1px solid var(--border);border-radius:6px;overflow:hidden;background-color:var(--bg)}.toggle-btn{background:none;border:none;color:var(--muted);padding:6px 12px;font-size:.75rem;font-weight:600;cursor:pointer;transition:all .15s ease}.toggle-btn:hover{background-color:var(--card-bg);color:var(--fg)}.toggle-btn.active{background-color:var(--accent);color:#fff}.canvas-viewport{flex:1;position:relative;overflow:auto;display:flex;align-items:center;justify-content:center;padding:24px;background:radial-gradient(circle,#1a1e29 0%,var(--bg) 100%);-webkit-user-select:none;user-select:none}.chessboard-bg{background-image:linear-gradient(45deg,#181d28 25%,transparent 25%),linear-gradient(-45deg,#181d28 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#181d28 75%),linear-gradient(-45deg,transparent 75%,#181d28 75%);background-size:20px 20px;background-position:0 0,0 10px,10px -10px,-10px 0px;background-color:#0f131a;border-radius:8px;box-shadow:var(--shadow-lg);overflow:hidden;position:relative}.viewport-canvas{display:block;image-rendering:pixelated;image-rendering:crisp-edges}.grid-overlay{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none}.compare-container{position:relative;overflow:hidden;border-radius:8px;box-shadow:var(--shadow-lg)}.compare-bottom-layer{display:block}.compare-top-layer{position:absolute;top:0;left:0;height:100%;overflow:hidden}.compare-top-layer canvas{position:absolute;top:0;left:0}.compare-slider-bar{position:absolute;top:0;bottom:0;width:2px;background-color:#fff;box-shadow:0 0 8px #00000080;cursor:ew-resize;transform:translate(-50%)}.compare-slider-handle{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:32px;height:32px;border-radius:50%;background-color:#fff;border:2px solid var(--accent);box-shadow:0 2px 10px #0006;display:flex;align-items:center;justify-content:center;color:var(--accent);font-weight:700;font-size:14px;pointer-events:auto;cursor:ew-resize}.compare-label{position:absolute;top:12px;padding:4px 8px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:#fff;background-color:#0f172abf;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);border:1px solid rgba(255,255,255,.15);border-radius:4px;pointer-events:none;z-index:10;box-shadow:0 2px 6px #0000004d;-webkit-user-select:none;user-select:none}.compare-label-left{left:12px}.compare-label-right{right:12px}.filmstrip-panel{height:120px;background-color:var(--panel);border-top:1px solid var(--border);display:flex;align-items:center;padding:0 24px;gap:16px;z-index:10}.filmstrip-title{font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);writing-mode:vertical-lr;transform:rotate(180deg);white-space:nowrap}.filmstrip-scroll{flex:1;display:flex;gap:12px;overflow-x:auto;padding:8px 0;min-width:0}.filmstrip-scroll::-webkit-scrollbar{height:6px}.filmstrip-scroll::-webkit-scrollbar-thumb{background-color:var(--border);border-radius:3px}.thumb-card{width:72px;height:72px;border-radius:6px;border:2px solid var(--border);background-color:var(--bg);position:relative;cursor:pointer;flex-shrink:0;overflow:hidden;transition:all .15s ease;display:flex;align-items:center;justify-content:center}.thumb-card:hover{border-color:var(--muted)}.thumb-card.active{border-color:var(--accent);box-shadow:0 0 10px var(--accent-light)}.thumb-img{max-width:100%;max-height:100%;object-fit:contain;image-rendering:pixelated}.thumb-remove{position:absolute;top:2px;right:2px;width:16px;height:16px;background-color:#ef4444d9;border-radius:50%;color:#fff;border:none;font-size:10px;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .15s ease}.thumb-card:hover .thumb-remove{opacity:1}.filmstrip-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}.dropzone{display:flex;flex-direction:column;align-items:center;justify-content:center;width:100%;max-width:500px;padding:40px;border:2px dashed var(--border);border-radius:12px;text-align:center;cursor:pointer;transition:all .2s ease;background-color:#ffffff04}.dropzone:hover{border-color:var(--accent);background-color:#6366f105}.dropzone-icon{font-size:3rem;margin-bottom:16px;opacity:.8}.dropzone-title{font-size:1.1rem;font-weight:600;margin-bottom:8px}.dropzone-sub{font-size:.8rem;color:var(--muted)}.palette-display{padding:16px 20px;background-color:var(--panel);border-top:1px solid var(--border);display:flex;flex-direction:column;gap:12px}.palette-display-header{display:flex;justify-content:space-between;align-items:center}.palette-display-title{font-size:.8rem;font-weight:700;text-transform:uppercase;color:var(--muted);letter-spacing:.5px}.palette-swatches{display:flex;flex-wrap:wrap;gap:6px}.swatch{width:24px;height:24px;border-radius:4px;border:1px solid rgba(255,255,255,.1);cursor:pointer;position:relative;transition:transform .1s ease}.swatch:hover{transform:scale(1.15);z-index:2;box-shadow:0 2px 6px #0000004d}.swatch-tooltip{position:absolute;bottom:100%;left:50%;transform:translate(-50%) translateY(-6px);background-color:#000;color:#fff;font-size:10px;padding:4px 6px;border-radius:4px;white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .1s ease;box-shadow:0 2px 8px #00000080;font-family:monospace}.swatch:hover .swatch-tooltip{opacity:1}.hidden{display:none!important}.action-dropdown{display:flex;border-radius:6px;overflow:hidden}.action-main{background-color:var(--accent);border:none;color:#fff;padding:8px 16px;font-size:.8rem;font-weight:600;cursor:pointer;transition:background-color .15s ease}.action-main:hover{background-color:var(--accent-hover)}.action-arrow{background-color:var(--accent-hover);border:none;color:#fff;padding:8px;font-size:.8rem;cursor:pointer;border-left:1px solid rgba(255,255,255,.1)}.toast-msg{position:absolute;bottom:24px;right:24px;background-color:var(--panel);border-left:4px solid var(--success);border-radius:4px;padding:12px 18px;box-shadow:var(--shadow-lg);font-size:.85rem;font-weight:500;display:flex;align-items:center;gap:12px;animation:slideIn .3s ease forwards;z-index:100}.toast-msg.danger{border-left-color:var(--danger)}@keyframes slideIn{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}