:root{
  --bg:#0e1117; --card:#161b24; --card2:#1d2430; --line:#28303d;
  --fg:#e6e9ef; --dim:#95a0b3; --acc:#5b8cff; --acc2:#7c5cff;
  --ok:#3ecf8e; --warn:#ffb454; --err:#ff6b6b;
}
@media (prefers-color-scheme: light){
  :root{--bg:#f6f7f9;--card:#fff;--card2:#f0f2f6;--line:#e2e6ee;--fg:#151a22;--dim:#5d6879}
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);
  font:15px/1.5 -apple-system,BlinkMacSystemFont,"PingFang SC","Segoe UI",Roboto,sans-serif}
header{display:flex;align-items:center;gap:12px;padding:18px 26px;border-bottom:1px solid var(--line)}
h1{font-size:19px;margin:0;font-weight:650;letter-spacing:.2px}
h1 .sub{font-size:12px;font-weight:400;color:var(--dim);margin-left:10px}
h2{font-size:15px;margin:0;font-weight:600}
.pill{margin-left:auto;font-size:11px;padding:3px 10px;border-radius:20px;
  background:var(--card2);color:var(--dim);border:1px solid var(--line);font-family:ui-monospace,monospace}
main{max-width:1160px;margin:0 auto;padding:22px 26px 60px;display:flex;flex-direction:column;gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px}
.hidden{display:none!important}

.drop{border:1.5px dashed var(--line);border-radius:12px;padding:30px;text-align:center;
  transition:.15s;background:var(--card2)}
.drop.over{border-color:var(--acc);background:color-mix(in srgb,var(--acc) 10%,var(--card2))}
.drop-inner p{margin:8px 0 0}
.drop svg{color:var(--dim)}
.hint{font-size:12px;color:var(--dim)}
.link{background:none;border:0;color:var(--acc);cursor:pointer;font:inherit;text-decoration:underline;padding:0}
.url-row{display:flex;gap:8px;margin-top:14px}
.url-row input{flex:1;padding:10px 13px;border-radius:9px;border:1px solid var(--line);
  background:var(--card2);color:var(--fg);font:inherit}
.url-row input:focus{outline:none;border-color:var(--acc)}

.btn{padding:8px 14px;border-radius:9px;border:1px solid var(--line);background:var(--card2);
  color:var(--fg);font:inherit;cursor:pointer;transition:.12s;text-decoration:none;display:inline-block}
.btn:hover{border-color:var(--acc)}
.btn.primary{background:linear-gradient(135deg,var(--acc),var(--acc2));border:0;color:#fff;font-weight:600}
.btn.primary:hover{filter:brightness(1.1)}
.btn.ghost{background:transparent}
.btn.sm{padding:4px 10px;font-size:12px}
.btn:disabled{opacity:.45;cursor:not-allowed}

.toolbar{display:flex;flex-wrap:wrap;gap:10px 18px;align-items:center;margin-bottom:14px}
.group{display:flex;gap:6px;align-items:center}
.tool{padding:7px 12px;border-radius:9px;border:1px solid var(--line);background:var(--card2);
  color:var(--dim);cursor:pointer;font:inherit}
.tool.active{color:#fff;background:var(--acc);border-color:var(--acc)}
.slider{font-size:12px;color:var(--dim);gap:8px}
.slider input{width:96px;accent-color:var(--acc)}
select{padding:6px 9px;border-radius:8px;border:1px solid var(--line);background:var(--card2);color:var(--fg);font:inherit}
label{font-size:12px;color:var(--dim);display:flex;align-items:center;gap:6px}
#run{margin-left:auto}

.stage{position:relative;display:inline-block;max-width:100%;line-height:0;
  border-radius:10px;overflow:hidden;background:#000;
  background-image:linear-gradient(45deg,#1a1a1a 25%,transparent 25%),linear-gradient(-45deg,#1a1a1a 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#1a1a1a 75%),linear-gradient(-45deg,transparent 75%,#1a1a1a 75%);
  background-size:18px 18px;background-position:0 0,0 9px,9px -9px,-9px 0}
.stage canvas{max-width:100%;height:auto;display:block}
#paint{position:absolute;inset:0;cursor:crosshair;opacity:.62}
.rubber{position:absolute;border:1.5px solid var(--acc);background:rgba(91,140,255,.22);pointer-events:none}
.meta{font-size:12px;color:var(--dim);margin:10px 0 0}

.prog{display:flex;align-items:center;gap:12px;margin-top:14px}
.bar{flex:1;height:7px;border-radius:5px;background:var(--card2);overflow:hidden}
.bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--acc),var(--acc2));transition:width .25s}
#progtxt{font-size:12px;color:var(--dim);font-family:ui-monospace,monospace;min-width:230px}

.rhead{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;gap:10px}
.single{line-height:0;border-radius:10px;overflow:hidden;background:#000}
.single img{width:100%;display:block}
.vcmp{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.vcmp figure{margin:0}
.vcmp figcaption{font-size:12px;color:var(--dim);margin-bottom:6px}
.vcmp video{width:100%;border-radius:10px;background:#000}
@media(max-width:760px){.vcmp{grid-template-columns:1fr}#run{margin-left:0}}

.toast{position:fixed;left:50%;bottom:26px;transform:translateX(-50%);padding:11px 18px;
  border-radius:10px;background:var(--card2);border:1px solid var(--line);font-size:13px;
  box-shadow:0 8px 28px rgba(0,0,0,.35);z-index:50;max-width:80vw}
.toast.err{border-color:var(--err);color:var(--err)}
.toast.ok{border-color:var(--ok)}