/* Page styles: the full-screen canvas, the tool drawer, overlays (recording dot, numbers), the WebGPU fallback,
   the image / video modal and toasts. */
:root{
  --ground:#DAD8D2;
  --ink:#1D1C1A;
  --ink-2:#55534E;
  --ink-3:#8A8781;
  --line:rgba(29,28,26,.22);
  --line-2:rgba(29,28,26,.11);
  --panel:rgba(244,243,239,.82);
  --red:#C23A22;
  --mono:"IBM Plex Mono",ui-monospace,"SF Mono",Menlo,monospace;
  --sans:"IBM Plex Sans KR","Apple SD Gothic Neo","Noto Sans KR",system-ui,sans-serif;
  color-scheme:light;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{margin:0;height:100%;background:var(--ground);color:var(--ink);overflow:hidden}
body{font:12.5px/1.45 var(--sans);-webkit-font-smoothing:antialiased;overscroll-behavior:none}
button{font:inherit;color:inherit}
#view{position:fixed;inset:0;width:100%;height:100%;display:block;touch-action:none;outline:none;cursor:none}

/* drawer */
#handle{position:fixed;right:0;top:50%;transform:translateY(-50%);z-index:5;width:22px;height:96px;border:0;background:transparent;padding:0;cursor:pointer;display:grid;place-items:center}
#handle i{display:block;width:4px;height:56px;border-radius:2px;background:rgba(255,255,255,.55);box-shadow:0 0 0 1px rgba(29,28,26,.18)}
#handle:hover i{background:rgba(255,255,255,.85)}
#handle:focus-visible{outline:2px solid var(--ink);outline-offset:-2px}
.drawer{position:fixed;top:12px;right:12px;bottom:12px;width:320px;z-index:6;background:var(--panel);-webkit-backdrop-filter:blur(14px) saturate(1.1);backdrop-filter:blur(14px) saturate(1.1);border:1px solid var(--line);transform:translateX(calc(100% + 28px));transition:transform .32s cubic-bezier(.2,.8,.2,1);display:flex;flex-direction:column}
.drawer.open{transform:none}
.dhead{display:flex;align-items:center;justify-content:space-between;padding:10px 12px 8px 14px;border-bottom:1px solid var(--line-2);flex:none}
.dhead span{font:500 10px/1 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--ink-3)}
.dhead .acts{display:flex;gap:4px}
.ib{border:1px solid transparent;background:transparent;padding:5px 7px;cursor:pointer;font:11px/1 var(--mono);color:var(--ink-2)}
.ib:hover{border-color:var(--line)}
.ib[aria-pressed=true]{border-color:var(--ink);color:var(--ink)}
.dbody{overflow:auto;padding:4px 14px 16px;display:grid;gap:14px;align-content:start;min-height:0}
section.sec{display:grid;gap:9px;padding-top:10px;border-top:1px solid var(--line-2)}
section.sec:first-child{border-top:0}
.lab{font:500 10px/1 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--ink-3)}
.field{display:grid;gap:2px}
.ftop{display:flex;justify-content:space-between;align-items:baseline;gap:8px}
.ftop label{font-size:12.5px}
.val{font:11.5px/1 var(--mono);color:var(--ink-2);font-variant-numeric:tabular-nums;white-space:nowrap}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:18px;background:transparent;margin:0;cursor:pointer}
input[type=range]::-webkit-slider-runnable-track{height:1px;background:var(--ink)}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:9px;height:15px;background:var(--ink);margin-top:-7px;border:0;border-radius:0}
input[type=range]::-moz-range-track{height:1px;background:var(--ink)}
input[type=range]::-moz-range-thumb{width:9px;height:15px;background:var(--ink);border:0;border-radius:0}
input[type=range]:disabled{opacity:.35}
.btn{background:transparent;border:1px solid var(--line);padding:7px 9px;display:flex;justify-content:space-between;align-items:center;gap:8px;cursor:pointer;text-align:left;font-size:12.5px;line-height:1.2;min-height:32px}
.btn:hover{border-color:var(--ink)}
.btn kbd{font:10.5px/1 var(--mono);color:var(--ink-3)}
.btn.on{background:var(--ink);color:#F4F3EF;border-color:var(--ink)}
.btn.on kbd{color:rgba(244,243,239,.6)}
.btn.solid{background:var(--ink);color:#F4F3EF;border-color:var(--ink);justify-content:center}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px}
.g2{display:grid;grid-template-columns:1fr 1fr;gap:6px}
.g2 .span{grid-column:1/-1}
.seg{display:grid;border:1px solid var(--line)}
.seg.c4{grid-template-columns:repeat(4,1fr)}
.seg.c3{grid-template-columns:repeat(3,1fr)}
.seg button{background:transparent;border:0;border-left:1px solid var(--line-2);padding:7px 0;font:11.5px/1 var(--mono);cursor:pointer}
.seg button:first-child{border-left:0}
.seg button[aria-pressed=true]{background:var(--ink);color:#F4F3EF}
.check{display:flex;gap:9px;align-items:center;font-size:12.5px;cursor:pointer;user-select:none}
.check input{appearance:none;-webkit-appearance:none;width:12px;height:12px;border:1px solid var(--ink);margin:0;flex:none;cursor:pointer}
.check input:checked{background:var(--ink);box-shadow:inset 0 0 0 2px #F4F3EF}
.check small{margin-left:auto;font:10.5px var(--mono);color:var(--ink-3)}
.sub{display:grid;gap:8px;padding-left:21px}

#rec{position:fixed;top:14px;right:18px;z-index:7;display:flex;align-items:center;gap:7px;font:500 11px/1 var(--mono);color:#fff;text-shadow:0 0 6px rgba(0,0,0,.45);letter-spacing:.06em;pointer-events:none;font-variant-numeric:tabular-nums}
#rec i{width:8px;height:8px;border-radius:50%;background:var(--red);box-shadow:0 0 0 1px rgba(255,255,255,.6)}
#nums{position:fixed;left:14px;bottom:14px;z-index:4;font:11px/1.55 var(--mono);color:var(--ink);background:rgba(244,243,239,.72);border:1px solid var(--line-2);padding:8px 10px;pointer-events:none;font-variant-numeric:tabular-nums;white-space:pre}
#nums b{font-weight:500}
#nums em{font-style:normal;color:var(--ink-3)}

#nogpu{position:fixed;inset:0;display:grid;place-items:center;padding:24px;z-index:10;background:var(--ground)}
#nogpu .card{max-width:440px;display:grid;gap:8px;text-align:center}
#nogpu strong{font-weight:500;font-size:15px}
#nogpu p{margin:0;line-height:1.65;color:var(--ink-2)}

.modal{position:fixed;inset:0;z-index:20;background:rgba(29,28,26,.42);display:grid;place-items:center;padding:24px}
.sheet{background:#F2F1ED;border:1px solid var(--ink);max-width:min(1100px,100%);max-height:100%;display:grid;grid-template-rows:auto minmax(0,1fr) auto;width:100%}
.mhead,.mfoot{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:10px 14px}
.mhead{border-bottom:1px solid var(--line)}
.mfoot{border-top:1px solid var(--line)}
.mhead strong{font-weight:500}
#mbody{display:grid;place-items:center;padding:14px;min-height:0;overflow:auto;background:#D9D7D2}
#mbody img,#mbody video{max-width:100%;max-height:68vh;display:block}
#minfo{font:11px/1.4 var(--mono);color:var(--ink-2)}
.toast{position:fixed;left:50%;bottom:22px;transform:translateX(-50%);z-index:30;background:rgba(29,28,26,.86);color:#F4F3EF;padding:8px 13px;font-size:12px;pointer-events:none;opacity:0;transition:opacity .25s}
.toast.show{opacity:1}

@media (max-width:700px){
  #handle{top:auto;bottom:0;right:auto;left:50%;transform:translateX(-50%);width:110px;height:24px}
  #handle i{width:52px;height:4px}
  .drawer{top:auto;left:0;right:0;bottom:0;width:auto;max-height:48svh;border-width:1px 0 0;transform:translateY(calc(100% + 16px))}
  .drawer.open{transform:none}
  .btn kbd{display:none}
  #nums{bottom:auto;top:14px}
}
@media (prefers-reduced-motion:reduce){.drawer{transition:none}.toast{transition:none}}