:root{--bg: #0e0f11;--panel: #17191c;--panel-2: #1f2226;--line: #2c3035;--text: #e6e8eb;--muted: #8b929a;--accent: #3d8bfd;--accent-text: #fff;--danger: #ff5c5c;color-scheme:dark;font:13px/1.4 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}html,body{height:100%;touch-action:manipulation;margin:0;background:var(--bg);color:var(--text)}body{display:grid;grid-template-rows:auto 1fr auto;grid-template-columns:minmax(0,1fr);overflow:hidden}h1{font-size:15px;margin:0 12px 0 -2px;letter-spacing:.02em}h2{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:0 0 8px}button,select,input[type=text],input[type=number]{font:inherit;color:var(--text);background:var(--panel-2);border:1px solid var(--line);border-radius:6px;padding:5px 10px}button{cursor:pointer}button:hover:not(:disabled){border-color:#454b52}button:disabled{opacity:.4;cursor:default}button.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-text)}button.active{background:#26344a;border-color:var(--accent)}kbd{font:10px ui-monospace,monospace;color:var(--muted);margin-left:4px}header{display:flex;align-items:center;gap:8px;padding:8px 12px;background:var(--panel);border-bottom:1px solid var(--line)}.spacer{flex:1}main{display:grid;grid-template-columns:210px minmax(0,1fr) 250px;min-height:0}aside{background:var(--panel);padding:12px;overflow-y:auto}#tools{border-right:1px solid var(--line)}#structures{border-left:1px solid var(--line)}aside section{margin-bottom:20px}.tool-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-bottom:10px}.stack{display:grid;gap:6px}.row{display:flex;align-items:center;gap:8px}.row input[type=range]{flex:1;min-width:0}.check{display:flex;align-items:center;gap:6px;cursor:pointer}.hint{color:var(--muted);font-size:12px;margin:6px 0 0}.state{margin:0 0 8px;font-weight:600}#wl-preset{width:100%}.shortcuts dl{display:grid;grid-template-columns:auto 1fr;gap:3px 8px;margin:0;font-size:12px}.shortcuts dt{color:var(--text);white-space:nowrap}.shortcuts dd{margin:0;color:var(--muted)}#stage{position:relative;min-width:0;min-height:0;background:#000;overflow:hidden}#view{-webkit-touch-callout:none;user-select:none;-webkit-user-select:none;position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;touch-action:none}#dropzone{position:absolute;top:16px;right:16px;bottom:16px;left:16px;display:grid;place-items:center;border:2px dashed var(--line);border-radius:12px;text-align:center;pointer-events:none}#dropzone div{display:grid;gap:6px}#dropzone strong{font-size:16px}#dropzone span{color:var(--muted)}#dropzone .small{font-size:12px}#dropzone.over{border-color:var(--accent);background:#3d8bfd14}#dropzone.hidden{display:none}#hud{position:absolute;top:8px;left:10px;font:12px ui-monospace,monospace;color:#cfd3d8;text-shadow:0 1px 2px #000;pointer-events:none;white-space:pre}.panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.panel-head h2{margin:0}#structure-list{list-style:none;margin:0 0 12px;padding:0;display:grid;gap:8px}#structure-list li{border:1px solid var(--line);border-radius:8px;padding:8px;background:var(--panel-2);display:grid;grid-template-columns:minmax(0,1fr);gap:6px;cursor:pointer}#structure-list li.active{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}#structure-list .top{display:flex;align-items:center;gap:6px}#structure-list input[type=color]{width:26px;height:26px;border:none;padding:0;background:none;cursor:pointer;flex:none}#structure-list input[type=text]{flex:1;min-width:0;padding:3px 6px}#structure-list .icon{padding:3px 7px;flex:none}#structure-list .opts{display:flex;flex-wrap:wrap;gap:4px 10px;font-size:12px;color:var(--muted)}#structure-list .meta{font-size:11px;color:var(--muted)}.empty{color:var(--muted);font-size:12px}footer{display:flex;align-items:center;gap:12px;padding:6px 12px 8px;background:var(--panel);border-top:1px solid var(--line)}#slice-label{font:12px ui-monospace,monospace;min-width:90px}#timeline{flex:1;display:grid}#keystrip{width:100%;height:14px;cursor:pointer}#slice-slider{width:100%;margin:2px 0 0}dialog{background:var(--panel);color:var(--text);border:1px solid var(--line);border-radius:12px;padding:20px;width:min(460px,calc(100vw - 32px))}dialog::backdrop{background:#0009}dialog h2{font-size:15px;text-transform:none;letter-spacing:0;color:var(--text)}dialog form{display:grid;gap:10px}dialog fieldset{border:1px solid var(--line);border-radius:8px;display:flex;gap:14px}dialog .grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}dialog .grid2 label{display:grid;gap:4px;color:var(--muted);font-size:12px}dialog .range-buttons{display:flex;gap:6px}dialog progress{width:100%}dialog menu{display:flex;justify-content:flex-end;gap:8px;margin:6px 0 0;padding:0}#toast{position:fixed;bottom:70px;left:50%;transform:translate(-50%);background:#2a2e33;border:1px solid var(--line);border-radius:8px;padding:8px 14px;max-width:min(640px,calc(100vw - 32px));opacity:0;transition:opacity .2s;pointer-events:none;white-space:pre-line}#toast.show{opacity:1}#toast.error{border-color:var(--danger)}header button{white-space:nowrap}@media (max-width: 1000px){main{grid-template-columns:170px minmax(0,1fr) 200px}header{overflow-x:auto}.shortcuts{display:none}.tool-grid{grid-template-columns:1fr}}a.button{font:inherit;color:var(--text);background:var(--panel-2);border:1px solid var(--line);border-radius:6px;padding:5px 10px;text-decoration:none;white-space:nowrap}a.button:hover{border-color:#454b52}#help-dialog{width:min(820px,calc(100vw - 32px));max-height:calc(100vh - 48px);padding:0}#help-dialog .help-head{position:sticky;top:0;display:flex;justify-content:flex-end;padding:10px 12px;background:var(--panel);border-bottom:1px solid var(--line)}.doc{padding:4px 28px 28px;font-size:14px;line-height:1.6}.doc h1{font-size:22px;margin:16px 0 8px}.doc h2{font-size:17px;text-transform:none;letter-spacing:0;color:var(--text);margin:28px 0 8px}.doc h3{font-size:15px;margin:20px 0 6px}.doc a{color:#7fb2ff}.doc code{font:12.5px ui-monospace,monospace;background:var(--panel-2);border-radius:4px;padding:1px 4px}.doc pre{background:var(--panel-2);border:1px solid var(--line);border-radius:8px;padding:10px 12px;overflow-x:auto}.doc pre code{background:none;padding:0}.doc table{border-collapse:collapse;width:100%;margin:8px 0;font-size:13px;display:block;overflow-x:auto}.doc th,.doc td{border:1px solid var(--line);padding:5px 8px;text-align:left;vertical-align:top}.doc th{background:var(--panel-2)}#structure-list .swatches{display:grid;grid-template-columns:repeat(10,1fr);gap:4px}#structure-list .swatch{aspect-ratio:1;padding:0;border-radius:4px;border:1px solid rgba(0,0,0,.35);background:var(--c)}#structure-list .swatch:hover:not(:disabled){border-color:var(--text)}#structure-list .swatch.on{box-shadow:0 0 0 2px var(--panel-2),0 0 0 3px var(--text)}.brand-icon{flex:none;display:block}.doc img{max-width:100%;height:auto;margin-top:16px}