@font-face{font-family:"Bricolage Grotesque";font-style:normal;font-weight:200 800;font-display:swap;src:url("fonts/bricolage-grotesque.woff2") format("woff2")}
@font-face{font-family:"IBM Plex Sans";font-style:normal;font-weight:400;font-display:swap;src:url("fonts/plex-sans-400.woff2") format("woff2")}
@font-face{font-family:"IBM Plex Sans";font-style:normal;font-weight:500;font-display:swap;src:url("fonts/plex-sans-500.woff2") format("woff2")}
@font-face{font-family:"IBM Plex Sans";font-style:normal;font-weight:600;font-display:swap;src:url("fonts/plex-sans-600.woff2") format("woff2")}
@font-face{font-family:"IBM Plex Mono";font-style:normal;font-weight:400;font-display:swap;src:url("fonts/plex-mono-400.woff2") format("woff2")}
@font-face{font-family:"IBM Plex Mono";font-style:normal;font-weight:500;font-display:swap;src:url("fonts/plex-mono-500.woff2") format("woff2")}

:root{
  color-scheme:light dark;
  --bg:#F6F7F9; --grid:#E4E7ED; --paper:#FFFFFF; --ink:#171A21; --ink-2:#4E5565; --ink-3:#8A91A2;
  --line:#D6DAE2; --accent:#2456D8; --accent-ink:#FFFFFF; --accent-soft:#E6ECFB;
  --good:#1E8A5A; --warn:#C7860B; --bad:#C63F2C; --bad-soft:#FBE9E6; --good-soft:#E3F3EB;
  --shadow:0 1px 2px rgba(23,26,33,.06),0 8px 24px rgba(23,26,33,.06);
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#12141A; --grid:#1D2029; --paper:#1A1D25; --ink:#EEF0F5; --ink-2:#B4BAC8; --ink-3:#737A8C;
    --line:#2B2F3B; --accent:#6C8EF5; --accent-ink:#0E1220; --accent-soft:#1F2A47;
    --good:#4FC48C; --warn:#E5A93A; --bad:#EF6B58; --bad-soft:#3A1F1B; --good-soft:#173328;
    --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px rgba(0,0,0,.35);
  }
}
*{box-sizing:border-box}
body{
  margin:0; color:var(--ink); font-family:"IBM Plex Sans",system-ui,-apple-system,Segoe UI,sans-serif; font-size:16px; line-height:1.5;
  background-color:var(--bg);
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:100% 28px,96px 100%;
  min-height:100vh;
}
.mono{font-family:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace}
.wrap{max-width:640px;margin:0 auto;padding:28px 20px 64px}
header{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:20px}
h1{font-family:"Bricolage Grotesque","IBM Plex Sans",sans-serif;font-weight:800;font-size:clamp(28px,5vw,38px);line-height:1;letter-spacing:-.02em;margin:0;text-wrap:balance}
h1 small{display:block;font-family:"IBM Plex Mono",monospace;font-weight:400;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);margin-bottom:8px}
.sprint{font-family:"IBM Plex Mono",monospace;font-size:12px;color:var(--ink-2);text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums}
.sprint b{display:block;font-size:22px;color:var(--ink);font-weight:500}

.meters{display:grid;grid-template-columns:repeat(2,1fr);gap:10px 18px;background:var(--paper);border:1px solid var(--line);border-radius:6px;padding:14px 16px;margin-bottom:14px}
@media (max-width:480px){.meters{grid-template-columns:1fr}}
.meter{display:grid;grid-template-columns:1fr auto;gap:2px 8px;align-items:center;font-size:12px}
.meter .lab{font-family:"IBM Plex Mono",monospace;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-2)}
.meter .val{font-family:"IBM Plex Mono",monospace;font-variant-numeric:tabular-nums;color:var(--ink-2);display:flex;gap:6px;align-items:center;justify-content:flex-end}
.meter .delta{font-weight:500;opacity:0;transition:opacity .2s}
.meter .delta.show{opacity:1}
.meter .delta.up{color:var(--good)}.meter .delta.down{color:var(--bad)}
.bar{grid-column:1/-1;height:6px;background:var(--grid);border-radius:3px;overflow:hidden}
.bar i{display:block;height:100%;width:0;background:var(--good);border-radius:3px;transition:width .5s cubic-bezier(.2,.7,.2,1),background-color .5s}
.bar i.warn{background:var(--warn)}.bar i.bad{background:var(--bad)}
.fnrow{grid-column:1/-1;display:flex;justify-content:space-between;align-items:baseline;border-top:1px dashed var(--line);padding-top:10px;margin-top:2px;font-family:"IBM Plex Mono",monospace;font-size:12px;color:var(--ink-2)}
.fnrow b{color:var(--ink);font-weight:500;font-size:14px;font-variant-numeric:tabular-nums}

.card{background:var(--paper);border:1px solid var(--line);border-radius:6px;box-shadow:var(--shadow);overflow:hidden}
.card-head{display:flex;align-items:center;gap:10px;padding:12px 18px;border-bottom:1px solid var(--line)}
.avatar{width:32px;height:32px;border-radius:6px;background:var(--accent-soft);color:var(--accent);font-family:"Bricolage Grotesque",sans-serif;font-weight:800;display:grid;place-items:center;font-size:14px;flex:none}
.who{font-weight:600;font-size:14px;line-height:1.2}
.chan{font-family:"IBM Plex Mono",monospace;font-size:11px;color:var(--ink-3)}
.card-body{padding:20px 18px 22px;font-size:17px;line-height:1.5}
.card-body code{font-family:"IBM Plex Mono",monospace;font-size:.88em;background:var(--accent-soft);color:var(--accent);padding:1px 5px;border-radius:3px}
.choices{display:grid;gap:10px;padding:0 18px 18px}
.choice{appearance:none;width:100%;text-align:left;border:1px solid var(--line);background:var(--paper);color:var(--ink);border-radius:6px;padding:12px 14px;font:inherit;font-size:15px;line-height:1.4;cursor:pointer;display:flex;gap:12px;align-items:flex-start;transition:border-color .15s,background .15s}
.choice .key{font-family:"IBM Plex Mono",monospace;font-size:11px;color:var(--ink-3);border:1px solid var(--line);border-radius:3px;padding:1px 6px;margin-top:3px;flex:none}
.choice:hover{border-color:var(--accent);background:var(--accent-soft)}
.choice:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.result{margin:0;padding:12px 18px;border-top:1px solid var(--line);background:var(--bg);font-size:14px;color:var(--ink-2);min-height:44px}
.result b{color:var(--ink);font-weight:500}

.license{margin-top:18px;display:flex;justify-content:center}
.license button{appearance:none;font:inherit;font-size:13px;font-family:"IBM Plex Mono",monospace;padding:9px 14px;border-radius:6px;border:1px dashed var(--line);background:transparent;color:var(--ink-3);cursor:not-allowed;position:relative}
.license button.ready{border-style:solid;border-color:var(--accent);color:var(--accent);cursor:pointer;background:var(--paper)}
.license button.ready:hover{background:var(--accent);color:var(--accent-ink)}
.license .tip{display:block;text-align:center;font-size:11px;color:var(--ink-3);margin-top:6px;font-family:"IBM Plex Mono",monospace}

.doc{background:var(--paper);border:1px solid var(--line);border-radius:6px;box-shadow:var(--shadow);padding:26px 26px 22px;font-family:"IBM Plex Mono",monospace;font-size:13px;line-height:1.6;color:var(--ink-2)}
.doc h2{font-family:"Bricolage Grotesque",sans-serif;font-weight:800;font-size:26px;letter-spacing:-.02em;color:var(--ink);margin:0 0 2px;line-height:1.1;text-wrap:balance}
.doc .sub{color:var(--ink-3);font-size:12px;margin-bottom:18px}
.doc h3{font-size:11px;text-transform:uppercase;letter-spacing:.1em;color:var(--ink-3);margin:18px 0 6px;font-weight:500}
.doc p{margin:0 0 6px;color:var(--ink)}
.doc p.lede{font-family:"IBM Plex Sans",system-ui,sans-serif;font-size:16px;line-height:1.5;margin-bottom:14px}
.doc .muted{color:var(--ink-3)}
.doc .big{font-size:28px;color:var(--ink);font-weight:500;font-variant-numeric:tabular-nums;line-height:1.1}
.doc .big small{font-size:13px;color:var(--ink-3);font-weight:400}
.doc ul{margin:0;padding-left:18px}
.doc li{margin:2px 0;color:var(--ink)}
.fnlist{display:flex;flex-wrap:wrap;gap:6px}
.fnlist span{border:1px solid var(--line);border-radius:3px;padding:1px 7px;font-size:12px;color:var(--ink)}
.fnlist .none{border-style:dashed;color:var(--ink-3)}
.doc .stamp{display:inline-block;border:2px solid var(--bad);color:var(--bad);border-radius:4px;padding:2px 8px;font-weight:500;letter-spacing:.06em;text-transform:uppercase;font-size:11px;transform:rotate(-2deg);margin-bottom:12px}
.doc .stamp.ok{border-color:var(--good);color:var(--good)}
.actions{display:grid;gap:10px;margin-top:22px}
.btn{appearance:none;font:inherit;font-weight:600;font-size:15px;padding:13px 16px;border-radius:6px;border:1px solid var(--line);background:var(--paper);color:var(--ink);cursor:pointer;text-align:center;text-decoration:none;display:block}
.btn:hover{border-color:var(--accent)}
.btn.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.btn.primary:hover{filter:brightness(1.08)}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.hint{text-align:center;font-size:12px;color:var(--ink-3);margin-top:10px;font-family:"IBM Plex Mono",monospace}

.intro .card-body{font-size:16px}
.intro .card-body p{margin:0 0 12px}
.intro .card-body p:last-child{margin:0}
footer{margin-top:40px;text-align:center;font-size:12px;color:var(--ink-3);font-family:"IBM Plex Mono",monospace}
footer a{color:var(--ink-2)}
[hidden]{display:none!important}
@media (prefers-reduced-motion: reduce){*{transition:none!important}}