:root{
  --paper:#EEF3F5;--card:#FFFFFF;--ink:#14232B;--muted:#5A6B73;--line:#D3DDE2;--deep:#1D4B5B;--deep-ink:#FFFFFF;--star:#E3A21A;--star-soft:#FCF1D6;--bad:#B83D57;--ok:#2B8656;
  --L:#2D6CB0;--R:#2B8656;--S:#C96A22;--W:#6E4FB0;--G:#B83D57;
  --f-display:"Bricolage Grotesque",system-ui,sans-serif;--f-body:"Atkinson Hyperlegible",system-ui,-apple-system,"Segoe UI",sans-serif;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){--paper:#0E161A;--card:#162227;--ink:#E5EDF0;--muted:#94A4AB;--line:#2A3A41;--deep:#7FBCCD;--deep-ink:#0E161A;--star:#F0B43C;--star-soft:#3A2F14;--bad:#E57A91;--ok:#5CC08A;color-scheme:dark}}
:root[data-theme="dark"]{--paper:#0E161A;--card:#162227;--ink:#E5EDF0;--muted:#94A4AB;--line:#2A3A41;--deep:#7FBCCD;--deep-ink:#0E161A;--star:#F0B43C;--star-soft:#3A2F14;--bad:#E57A91;--ok:#5CC08A;color-scheme:dark}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.55 var(--f-body);min-height:100vh}
a{color:var(--deep)}
h1,h2,h3{font-family:var(--f-display);line-height:1.1;margin:0;text-wrap:balance}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.top{display:flex;align-items:center;gap:12px;padding:18px 0}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-family:var(--f-display);font-weight:800;font-size:22px;margin-right:auto}
.logo svg{width:34px;height:34px}
.logo b{color:var(--star)}
.langsw{display:inline-flex;border:1px solid var(--line);border-radius:999px;padding:3px;background:var(--card)}
.langsw button{border:0;background:none;color:var(--muted);font:inherit;font-size:13px;font-weight:700;padding:4px 10px;border-radius:999px;cursor:pointer}
.langsw button[aria-pressed="true"]{background:var(--deep);color:var(--deep-ink)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--line);background:var(--card);color:var(--ink);border-radius:12px;padding:10px 16px;font:inherit;font-weight:700;text-decoration:none;cursor:pointer;white-space:nowrap}
.btn.primary{background:var(--deep);border-color:var(--deep);color:var(--deep-ink)}
.btn.big{padding:14px 22px;font-size:17px;border-radius:14px}
.btn:disabled{opacity:.6;cursor:default}
.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;padding:40px 0 56px}
.hero h1{font-size:clamp(34px,5.4vw,58px);font-weight:800;letter-spacing:-.02em}
.hero p{font-size:18px;color:var(--muted);max-width:34em;margin:18px 0 26px}
.cta{display:flex;gap:12px;flex-wrap:wrap}
.mock{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:18px;box-shadow:0 20px 50px -30px rgba(20,35,43,.45);display:flex;flex-direction:column;gap:10px}
.mrow{display:grid;grid-template-columns:1fr auto;gap:8px;align-items:center;padding:10px;border-radius:12px;background:var(--paper)}
.mrow b{font-size:15px}.mrow .pc{font-family:var(--f-display);font-weight:800;font-size:20px}
.chips{display:flex;gap:6px;grid-column:1/-1}
.chip{width:34px;height:34px;border-radius:10px;border:2px dashed var(--line);display:grid;place-items:center;font-family:var(--f-display);font-weight:800;font-size:13px;color:var(--muted)}
.chip.on{border-style:solid;color:#fff}.chip.on.L{background:var(--L);border-color:var(--L)}.chip.on.R{background:var(--R);border-color:var(--R)}.chip.on.S{background:var(--S);border-color:var(--S)}.chip.on.W{background:var(--W);border-color:var(--W)}.chip.on.G{background:var(--G);border-color:var(--G)}
.feat{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;padding-bottom:56px}
.fcard{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px}
.fcard .ic{font-size:26px}
.fcard h3{font-size:18px;margin:8px 0 6px}
.fcard p{margin:0;color:var(--muted);font-size:15px}
footer{border-top:1px solid var(--line);padding:22px 0 40px;color:var(--muted);font-size:14px}
/* auth pages */
.authwrap{min-height:calc(100vh - 80px);display:grid;place-items:center;padding:20px 16px 48px}
.card{width:100%;max-width:420px;background:var(--card);border:1px solid var(--line);border-radius:18px;padding:26px}
.card h1{font-size:26px}
.card .sub{color:var(--muted);margin:6px 0 18px}
.seg{display:flex;border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-bottom:18px}
.seg button{flex:1;padding:10px;border:0;background:none;color:var(--muted);font:inherit;font-weight:700;cursor:pointer}
.seg button[aria-pressed="true"]{background:var(--deep);color:var(--deep-ink)}
label{display:block;font-size:13px;font-weight:700;color:var(--muted);margin:12px 0 4px}
input,select{width:100%;padding:12px;font:inherit;border:1px solid var(--line);border-radius:10px;background:var(--paper);color:var(--ink)}
input:focus,select:focus{outline:2px solid var(--deep);outline-offset:1px}
.hint{font-size:13px;color:var(--muted);margin:4px 0 0}
.card .btn.primary{width:100%;margin-top:18px;padding:13px}
.err{color:var(--bad);font-weight:700;min-height:1.4em;margin:12px 0 0}
.alt{margin:16px 0 0;font-size:14px;color:var(--muted);text-align:center}
.codebox{font-family:var(--f-display);font-size:22px;letter-spacing:.2em;text-transform:uppercase;text-align:center}
[hidden]{display:none!important}
@media (max-width:820px){.hero{grid-template-columns:1fr;padding-top:16px}.feat{grid-template-columns:1fr 1fr}}
@media (max-width:540px){.feat{grid-template-columns:1fr}.top .hide-s{display:none}.wrap{padding:0 16px}}
.tnote{background:var(--star-soft);border:1px solid var(--line);border-radius:12px;padding:12px;margin:12px 0 4px}.tnote p{margin:0 0 10px;font-size:14px}.tnote .btn{padding:8px 12px;font-size:14px}