:root{
  --ground:#141110; --panel:#1c1817; --raise:#262120; --line:#352e2b;
  --fg:#efe9e6; --dim:#a8998f; --safe:#ff8f6b; --safe-ink:#2a0f06; --warn:#f0a24a;
  --f-mark:"Bricolage Grotesque",ui-sans-serif,system-ui,sans-serif;
  --f-ui:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-num:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  color-scheme:dark;
}
*{box-sizing:border-box}
body{margin:0;background:var(--ground);color:var(--fg);font:15px/1.55 var(--f-ui);-webkit-font-smoothing:antialiased}
[hidden]{display:none!important}
:focus-visible{outline:2px solid var(--safe);outline-offset:3px;border-radius:4px}
.bar{display:flex;align-items:center;gap:16px;height:58px;padding:0 max(18px,env(safe-area-inset-left));border-bottom:1px solid var(--line);position:sticky;top:0;background:rgba(20,17,16,.9);backdrop-filter:blur(10px);z-index:5}
.brand{display:flex;align-items:center;gap:9px;font:600 18px var(--f-mark);text-decoration:none;color:inherit}
.brand svg{width:22px;height:22px}
.badge{font:12px var(--f-num);color:var(--safe);border:1px solid #4a2f26;background:#2a1914;padding:3px 9px;border-radius:99px;white-space:nowrap}
.help{margin-left:auto;color:var(--dim);text-decoration:none}
.help:hover{color:var(--fg)}
.stage{max-width:1100px;margin:0 auto;padding:30px 18px 80px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:26px}
#start,#work{max-width:720px;margin:0 auto}
h1{font:600 clamp(28px,4.4vw,40px)/1.08 var(--f-mark);letter-spacing:-.02em;margin:0 0 8px}
h2{font:600 22px/1.2 var(--f-mark);margin:0 0 14px}
.sub{color:var(--dim);margin:0 0 22px}
.eyebrow{font:12px var(--f-num);letter-spacing:.12em;text-transform:uppercase;color:var(--safe);margin:0 0 8px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.drop{display:flex;flex-direction:column;align-items:center;gap:6px;padding:46px 16px;border:1.5px dashed #4d403b;border-radius:12px;cursor:pointer;text-align:center;background:var(--ground);transition:border-color .15s,background .15s}
.drop:hover,.drop.over{border-color:var(--safe);background:#201513}
.drop svg{width:34px;height:34px;color:var(--safe)}
.drop span{color:var(--dim);font-size:13.5px}
.note{color:var(--dim);font-size:13px;margin:14px 0 0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:8px;padding:9px 16px;font:600 14.5px var(--f-ui);border:1px solid var(--line);background:var(--raise);color:var(--fg);cursor:pointer;white-space:nowrap}
.btn:hover{border-color:var(--dim)}
.btn.primary{background:var(--safe);border-color:var(--safe);color:var(--safe-ink)}
.btn.ghost{background:none}
.meter{height:8px;border-radius:99px;background:var(--raise);overflow:hidden;margin:6px 0 4px}
#bar{height:100%;width:0;background:var(--safe);border-radius:99px;transition:width .25s}
#bar.busy{width:35%!important;animation:slide 1.3s ease-in-out infinite}
@keyframes slide{0%{transform:translateX(-100%)}100%{transform:translateX(290%)}}
#cancel{margin-top:18px}
.err{max-width:720px;margin:16px auto 0;padding:12px 16px;border-radius:10px;background:#3a1a14;border:1px solid #6b2f22;color:#ffd5c8}

#result{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:18px;align-items:start}
@media (max-width:860px){#result{grid-template-columns:1fr}}
.viewer{position:relative;border:1px solid var(--line);border-radius:14px;overflow:hidden;display:flex;align-items:center;justify-content:center;min-height:300px;max-height:calc(100vh - 140px);
  background-color:#2b2725;background-image:linear-gradient(45deg,#3a3532 25%,transparent 25%,transparent 75%,#3a3532 75%),linear-gradient(45deg,#3a3532 25%,transparent 25%,transparent 75%,#3a3532 75%);background-size:24px 24px;background-position:0 0,12px 12px}
#view{display:block;max-width:100%;max-height:calc(100vh - 142px);touch-action:pinch-zoom}
.viewer.brushing #view{cursor:none;touch-action:none}
.cursor{position:absolute;pointer-events:none;border:1.5px solid #fff;border-radius:50%;box-shadow:0 0 0 1px rgba(0,0,0,.6);transform:translate(-50%,-50%)}
.tools{display:flex;flex-direction:column;gap:18px;padding:20px}
.group{display:flex;flex-direction:column;gap:8px}
.group.actions{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.group.actions #dlPng,.group.actions #again{grid-column:1/-1}
.label{font:12px var(--f-num);letter-spacing:.1em;text-transform:uppercase;color:var(--dim)}
.chips{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.chip{display:inline-flex;align-items:center;gap:7px;padding:6px 11px;border-radius:99px;border:1px solid var(--line);background:var(--raise);color:var(--fg);font:500 13.5px var(--f-ui);cursor:pointer;position:relative}
.chip.on{border-color:var(--safe);background:#3a221b}
.chip:disabled{opacity:.45;cursor:default}
.chip input[type=color]{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%}
.sw{width:14px;height:14px;border-radius:50%;border:1px solid #6d625c;display:inline-block}
.sw.checker{background:conic-gradient(#999 25%,#eee 0 50%,#999 0 75%,#eee 0) 0 0/8px 8px}
.sw.blur{background:radial-gradient(circle,#c9b3a6,#5a4a43)}
.size{display:flex;align-items:center;gap:8px;color:var(--dim);font-size:13px;width:100%}
.size input{flex:1;accent-color:var(--safe)}
.check{display:flex;align-items:center;gap:8px;cursor:pointer}
.check input{accent-color:var(--safe);width:16px;height:16px}