:root{color-scheme:dark;--bg:#080c0b;--surface:#101816;--surface2:#17221d;--line:#2b3d34;--text:#e7f0eb;--muted:#91a69a;--green:#8be6ad;--radius:16px}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;width:100%;height:100%;overflow:hidden;background:var(--bg);color:var(--text);font:13px/1.45 "Segoe UI",system-ui,sans-serif}
button,input,select,textarea{font:inherit}
button{cursor:pointer;touch-action:manipulation}
button:active{transform:scale(.97)}
button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--green);outline-offset:2px}
button:disabled{opacity:.35;cursor:default}
canvas{position:fixed;inset:0;width:100%;height:100%;display:block;touch-action:none;background:#020505}
.topbar{position:fixed;top:0;left:0;right:0;z-index:20;min-height:57px;padding:8px max(14px,env(safe-area-inset-right));display:flex;align-items:center;justify-content:space-between;gap:12px;pointer-events:none}
.topbar>*{pointer-events:auto}
.identity{display:flex;align-items:center;gap:10px;line-height:1.05}
.identity-mark{width:34px;height:34px;border:1px solid #476450;border-radius:12px;display:grid;place-items:center;font-size:26px;color:var(--green);background:#0b1411e8}
.identity strong,.eyebrow,.group-heading,.advanced summary,.editor-bar strong{display:block;font-variant:all-small-caps;letter-spacing:.15em;font-weight:760}
.identity strong{font-size:18px}
.identity small{display:block;margin-top:5px;letter-spacing:.12em;font-size:9px;color:var(--muted)}
.bar-actions{display:flex;align-items:center;gap:7px}
.tool-button,.action-button{background:#111b17ed;color:var(--text);border:1px solid var(--line);border-radius:11px;min-height:36px;padding:7px 11px;display:inline-flex;align-items:center;justify-content:center;gap:8px;white-space:nowrap}
.tool-button{min-width:36px;font-size:18px}
.tool-button:hover,.action-button:hover{background:#1c2d22}
.primary-tool{color:var(--green);font-size:14px;font-weight:700}
.stage-caption{position:fixed;bottom:max(18px,env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);color:#b4c8bc;background:#0a1410d9;border:1px solid #304238;border-radius:999px;padding:7px 13px;white-space:nowrap;pointer-events:none;font-size:11px;letter-spacing:.035em;z-index:5}
.settings-sheet{position:fixed;z-index:30;top:66px;right:12px;bottom:14px;width:min(360px,calc(100vw - 24px));display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);visibility:hidden;opacity:0;transform:translateX(12px);pointer-events:none;transition:opacity .18s ease,transform .18s ease,visibility .18s}
.settings-sheet.open{visibility:visible;opacity:1;transform:translateX(0);pointer-events:auto}
.sheet-header{flex:0 0 auto;border-bottom:1px solid var(--line);padding:15px 14px 12px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.eyebrow{font-size:10px;color:var(--green)}
h1{margin:1px 0 0;font-weight:700;font-size:23px;letter-spacing:-.03em;line-height:1.1}
.sheet-scroll{min-height:0;overflow-y:auto;overscroll-behavior:contain;padding:14px;scrollbar-width:thin;scrollbar-color:#46604f transparent}
.presets{display:flex;flex-wrap:wrap;gap:6px;padding-bottom:12px}
.preset{padding:7px 10px;background:var(--surface2);border:1px solid var(--line);color:var(--text);border-radius:999px;font-size:11px}
.preset.active{border-color:var(--green);color:var(--green)}
.group{padding:12px 0;border-top:1px solid var(--line)}
details.group>summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:8px}
details.group>summary::-webkit-details-marker{display:none}
details.group>summary::after{content:"+";font-size:17px;color:var(--muted)}
details.group[open]>summary::after{content:"−"}
.group-heading{display:flex;align-items:center;justify-content:space-between;gap:10px;color:var(--green);font-size:12px}
.group-counter{font-size:9px;font-weight:500;color:var(--muted)}
.field{display:grid;gap:4px;margin-top:12px}
.field-heading{display:flex;align-items:center;justify-content:space-between;gap:10px}
.field label{font-size:12px;color:var(--text)}
.field output{color:var(--green);font-variant-numeric:tabular-nums;font-size:11px;font-weight:750}
.field small{color:var(--muted);font-size:10px}
.field input[type=range]{width:100%;height:5px;margin:8px 0 4px;border-radius:99px;appearance:none;-webkit-appearance:none;outline:none;background:#3a5142;touch-action:pan-y}
.field input[type=range]::-webkit-slider-thumb{appearance:none;-webkit-appearance:none;width:22px;height:22px;border:none;background:transparent}
.field input[type=range]::-moz-range-thumb{width:22px;height:22px;border:none;background:transparent}
.field input[type=color]{appearance:none;width:100%;height:30px;background:none;border:1px solid var(--line);border-radius:9px;padding:2px;cursor:pointer}
.field input[type=color]::-webkit-color-swatch-wrapper{padding:0}
.field input[type=color]::-webkit-color-swatch{border:0;border-radius:6px}
.field input[type=file]::file-selector-button{font:inherit;color:var(--green);background:var(--surface2);border:1px solid var(--line);border-radius:9px;padding:7px 9px;margin-right:8px}
.field select{width:100%;min-height:35px;background:var(--surface2);color:var(--text);border:1px solid var(--line);border-radius:9px;padding:5px 9px}
.field.toggle-row{display:flex;justify-content:space-between;align-items:center}
.field input[type=checkbox]{appearance:none;width:37px;height:21px;background:#394940;border-radius:999px;position:relative;margin:0}
.field input[type=checkbox]::before{content:"";position:absolute;left:3px;top:3px;width:15px;height:15px;border-radius:100%;background:#aab8ae;transition:transform .16s}
.field input[type=checkbox]:checked{background:var(--green)}
.field input[type=checkbox]:checked::before{transform:translateX(16px);background:#153021}
.input-stack{display:grid;gap:3px;margin-top:8px}
.feature-row{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:10px 0;border-bottom:1px solid #25362c}
.feature-row>div{min-width:0}
.feature-row strong{display:block;font-size:12px;font-weight:600}
.feature-row small{display:block;color:var(--muted);font-size:10px;margin-top:2px;line-height:1.35}
.feature-row .action-button{font-size:11px;min-height:32px;padding:6px 9px}
.advanced summary{font-size:12px;color:var(--green)}
.advanced summary span{margin-left:auto;color:var(--muted);font-size:9px}
.advanced p{font-size:11px;color:var(--muted);margin:9px 0}
.action-row,.reset-row{display:flex;gap:8px;margin-top:10px}
.action-row>* ,.reset-row>*{flex:1}
.reset-row{margin:12px 0}
.reset-row .action-button{font-size:11px}
.editor-panel{position:fixed;z-index:40;inset:62px 12px 12px;max-width:1000px;margin:auto;background:#0a100d;border:1px solid var(--line);border-radius:14px;display:flex;flex-direction:column;overflow:hidden}
.editor-panel[hidden]{display:none}
.editor-bar{height:49px;flex-shrink:0;border-bottom:1px solid var(--line);padding:6px 12px;display:flex;align-items:center;justify-content:space-between;gap:8px}
.editor-bar>div{display:flex;gap:6px}
.editor{flex:1;min-height:0;resize:none;background:#070c09;color:#d4e8d9;border:0;padding:14px;font:12px/1.5 "Fira Code",Consolas,monospace;tab-size:2;white-space:pre}
#error{margin:0;padding:5px 12px;color:#f19b99;font:11px/1.35 Consolas,monospace;max-height:100px;overflow:auto;white-space:pre-wrap}
#error:empty{display:none}
#indicator{display:none}
.hidden{display:none!important}
@media(max-width:720px){
 .identity small{display:none}
 .identity strong{font-size:16px}
 .topbar{min-height:54px}
 .bar-actions{gap:5px}
 .primary-tool span{display:none}
 .settings-sheet{top:auto;bottom:0;left:0;right:0;width:100%;height:57dvh;min-height:310px;max-height:calc(100dvh - 65px);border-radius:18px 18px 0 0;border-left:0;border-right:0;border-bottom:0;transform:translateY(18px)}
 .settings-sheet.open{transform:translateY(0)}
 .sheet-header{padding:12px 15px}
 .sheet-scroll{padding:12px 15px calc(20px + env(safe-area-inset-bottom))}
 .stage-caption{bottom:calc(15px + env(safe-area-inset-bottom))}
 .editor-panel{inset:57px 0 0;border-radius:0;border-left:0;border-right:0;border-bottom:0}
}
@media(max-width:375px){.identity-mark{display:none}.tool-button{min-width:32px;padding:5px 8px}.primary-tool{font-size:12px}}

.webgl-error{position:fixed;z-index:50;top:50%;left:50%;transform:translate(-50%,-50%);width:min(380px,calc(100vw - 32px));padding:18px;border:1px solid #536558;border-radius:14px;background:#101816;color:#e7f0eb;font:14px/1.5 "Segoe UI",sans-serif;text-align:center}