:root{
  --bg:#09090b;--s1:#111114;--s2:#17171b;--s3:#1d1d22;--border:#26262d;
  --text:#f4f4f5;--muted:#8b8b98;--dim:#575765;--ok:#4ade80;--err:#fb7185;
  --warn:#fbbf24;--accent:#a78bfa;--accent2:#7c3aed;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:
  radial-gradient(circle at 15% -10%,rgba(124,58,237,.16),transparent 32%),
  radial-gradient(circle at 90% 0%,rgba(167,139,250,.08),transparent 26%),
  var(--bg);
  color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  min-height:100vh;padding:34px 18px 80px;
}
.shell{width:min(1120px,100%);margin:0 auto}
.hero{display:flex;justify-content:space-between;gap:24px;align-items:flex-end;margin:4px 0 24px}
.eyebrow{font-size:11px;letter-spacing:2.4px;text-transform:uppercase;color:var(--accent);font-weight:800}
h1{font-size:clamp(30px,4vw,48px);font-weight:600;letter-spacing:-1.8px;margin:8px 0 7px}
.hero p{margin:0;color:var(--muted);font-size:14px;line-height:1.55}
.badges{display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end}
.badge{border:1px solid var(--border);background:rgba(17,17,20,.8);padding:7px 10px;border-radius:999px;font-size:11px;color:#c8c8d2;white-space:nowrap}
.grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(320px,.65fr);gap:18px;align-items:start}
@media(max-width:900px){.grid{grid-template-columns:1fr}.hero{align-items:flex-start;flex-direction:column}.badges{justify-content:flex-start}}
.card{background:rgba(17,17,20,.92);border:1px solid var(--border);border-radius:16px;overflow:hidden;box-shadow:0 20px 60px rgba(0,0,0,.22)}
.card-head{padding:18px 20px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;gap:16px;align-items:center}
.card-head h2{font-size:14px;margin:0;font-weight:650;letter-spacing:.1px}
.card-body{padding:20px}
.stack{display:flex;flex-direction:column;gap:15px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.row3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
@media(max-width:640px){.row,.row3{grid-template-columns:1fr}}
.field{display:flex;flex-direction:column;gap:7px}
label,.label{font-size:10px;letter-spacing:1.35px;text-transform:uppercase;color:var(--muted);font-weight:700}
input[type=text],input[type=number],textarea,select{
  width:100%;background:var(--s2);border:1px solid var(--border);border-radius:9px;color:var(--text);
  padding:11px 12px;outline:none;font:inherit;font-size:13px;transition:border-color .2s,box-shadow .2s
}
input:focus,textarea:focus,select:focus{border-color:#44445a;box-shadow:0 0 0 3px rgba(167,139,250,.06)}
textarea{min-height:240px;resize:vertical;line-height:1.65}
.endpoint{display:grid;grid-template-columns:12px 1fr auto;gap:10px;align-items:center}
.dot{width:9px;height:9px;border-radius:50%;background:#34343d}
.dot.ok{background:var(--ok);box-shadow:0 0 12px rgba(74,222,128,.55)}
.dot.err{background:var(--err);box-shadow:0 0 12px rgba(251,113,133,.35)}
.btn{
  border:0;border-radius:9px;padding:11px 14px;background:#f4f4f5;color:#0a0a0c;font:inherit;font-size:12px;font-weight:800;
  letter-spacing:.55px;cursor:pointer;transition:transform .08s,background .2s,opacity .2s;white-space:nowrap
}
.btn:hover:not(:disabled){background:#dddde2}.btn:active:not(:disabled){transform:translateY(1px)}
.btn:disabled{opacity:.42;cursor:not-allowed}
.btn.secondary{background:var(--s2);color:#dddde5;border:1px solid var(--border)}
.btn.secondary:hover:not(:disabled){background:var(--s3)}
.btn.danger{background:transparent;color:#fda4af;border:1px solid #3a2027}
.btn.accent{background:linear-gradient(135deg,#a78bfa,#7c3aed);color:white}
.upload{
  position:relative;border:1px dashed #34343f;border-radius:11px;background:var(--s2);padding:16px;display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:68px
}
.upload input[type=file]{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%}
.upload .u-title{font-size:13px}.upload .u-sub{font-size:11px;color:var(--muted);margin-top:3px}
.upload.filled{border-style:solid;border-color:#41414e}
.pill{font-size:10px;border:1px solid var(--border);border-radius:999px;padding:5px 8px;color:var(--muted);white-space:nowrap}
.splitbox{border:1px solid var(--border);background:var(--s2);border-radius:11px;padding:14px}
.split-top{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}
.split-help{font-size:11px;color:var(--muted);line-height:1.5;margin-top:4px}
.split-limit{display:flex;align-items:center;gap:7px;min-width:210px}
.split-limit input{width:120px;text-align:center}
@media(max-width:600px){.split-top{flex-direction:column}.split-limit{width:100%}.split-limit input{flex:1}}
.split-meta{margin-top:12px;padding-top:11px;border-top:1px solid var(--border);display:flex;flex-wrap:wrap;gap:9px;font-size:11px;color:var(--muted)}
.split-meta strong{color:var(--text)}
.warning{font-size:11px;line-height:1.5;color:#fcd34d;background:#231d0d;border:1px solid #463a16;border-radius:9px;padding:10px 12px;display:none}
.warning.show{display:block}
.advanced{border:1px solid var(--border);border-radius:11px;overflow:hidden}
.advanced summary{list-style:none;cursor:pointer;padding:13px 14px;background:var(--s2);font-size:11px;letter-spacing:1.15px;text-transform:uppercase;color:var(--muted);font-weight:800}
.advanced summary::-webkit-details-marker{display:none}
.adv-grid{padding:15px;display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:600px){.adv-grid{grid-template-columns:1fr}}
.range-line{display:flex;justify-content:space-between;gap:12px;align-items:center}
.range-value{font-size:11px;color:var(--text)}
input[type=range]{width:100%;accent-color:var(--accent)}
.actions{display:grid;grid-template-columns:1fr auto;gap:10px}
.progress{height:9px;border:1px solid var(--border);background:#101014;border-radius:999px;overflow:hidden}
.progress > div{height:100%;width:0%;background:linear-gradient(90deg,#7c3aed,#a78bfa);transition:width .2s}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:9px}
@media(max-width:520px){.metrics{grid-template-columns:repeat(2,1fr)}}
.metric{background:var(--s2);border:1px solid var(--border);border-radius:10px;padding:11px}
.metric span{display:block;color:var(--muted);font-size:9px;letter-spacing:1.15px;text-transform:uppercase;font-weight:800}
.metric strong{display:block;font-size:20px;margin-top:4px;letter-spacing:-.3px}
.statusline{font-size:12px;color:var(--muted);line-height:1.55;min-height:19px}
.statusline.ok{color:var(--ok)}.statusline.err{color:var(--err)}.statusline.warn{color:var(--warn)}
.log{height:190px;overflow:auto;background:#0d0d10;border:1px solid var(--border);border-radius:10px;padding:11px 12px;font:11px/1.55 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:#a7a7b4;white-space:pre-wrap}
.preview{max-height:260px;overflow:auto;border:1px solid var(--border);border-radius:10px;background:#0d0d10}
.chunk{padding:10px 12px;border-bottom:1px solid #202026}
.chunk:last-child{border-bottom:0}
.chunk-head{display:flex;justify-content:space-between;gap:10px;font-size:10px;color:var(--muted);margin-bottom:5px}
.chunk-text{font-size:12px;color:#cfcfd8;line-height:1.45;white-space:pre-wrap}
.player{display:none;border:1px solid var(--border);border-radius:12px;background:var(--s2);padding:14px}
.player.show{display:block}
audio{width:100%;height:42px}
.downloads{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.linkbtn{display:inline-flex;align-items:center;text-decoration:none;color:var(--text);border:1px solid var(--border);background:#121216;padding:8px 11px;border-radius:9px;font-size:11px;font-weight:700}
.small{font-size:11px;color:var(--muted);line-height:1.55}
.sep{height:1px;background:var(--border);margin:2px 0}
.kbd{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:#1d1d22;border:1px solid #2a2a31;border-radius:5px;padding:2px 5px;font-size:10px}
.footer{margin-top:26px;color:#575765;font-size:11px;line-height:1.6}
.spin{display:inline-block;width:12px;height:12px;border:2px solid rgba(255,255,255,.28);border-top-color:white;border-radius:50%;animation:spin .7s linear infinite;vertical-align:-2px;margin-right:7px}
@keyframes spin{to{transform:rotate(360deg)}}
[hidden]{display:none!important}
.auth-shell{width:min(480px,100%);margin:35px auto}.auth-shell h1{font-size:36px}
input[type=password]{width:100%;background:var(--s2);border:1px solid var(--border);border-radius:9px;color:var(--text);padding:11px 12px;font:inherit;font-size:13px}
.account-bar,.library-card{margin-bottom:18px}.account-row,.account-actions{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.account-row strong{font-size:14px}.library-item{border:1px solid var(--border);border-radius:11px;background:var(--s2);padding:14px}
.library-title{font-size:13px;overflow-wrap:anywhere;margin:0 0 8px}.library-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
#library-list{max-height:360px;overflow:auto}