:root{
  --ink:#0C0F14;
  --panel:#141923;
  --panel-2:#1B212D;
  --line:rgba(255,255,255,0.08);
  --line-strong:rgba(255,255,255,0.16);
  --text:#EAEEF5;
  --muted:#8B95A7;
  --amber:#F2B33D;
  --mint:#56D9A3;
  --mint-line:rgba(86,217,163,0.32);
  --display: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;
  --maxw:760px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:
    radial-gradient(1000px 500px at 85% -10%, rgba(242,179,61,0.05), transparent 60%),
    radial-gradient(800px 460px at 0% 8%, rgba(86,217,163,0.045), transparent 55%),
    var(--ink);
  color:var(--text);
  font-family:var(--display);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--mint);}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px;}

/* top bar */
.topbar{display:flex;align-items:center;justify-content:space-between;padding:20px 0;border-bottom:1px solid var(--line);}
.brand{display:flex;align-items:center;gap:11px;font-weight:700;letter-spacing:-0.02em;font-size:18px;color:var(--text);text-decoration:none;}
.brand .dot{color:var(--mint);}
.top-links{display:flex;gap:22px;font-size:14px;}
.top-links a{color:var(--muted);text-decoration:none;}
.top-links a:hover{color:var(--text);}
@media (max-width:560px){ .top-links{display:none;} }

/* content */
.doc{padding:46px 0 20px;}
.doc .updated{font-family:var(--mono);font-size:12.5px;letter-spacing:0.05em;color:var(--muted);text-transform:uppercase;}
.doc h1{font-size:clamp(28px,5vw,42px);letter-spacing:-0.03em;line-height:1.05;margin:14px 0 8px;font-weight:760;}
.doc .intro{font-size:17px;color:var(--muted);margin:0 0 36px;}
.doc h2{font-size:20px;letter-spacing:-0.015em;margin:34px 0 10px;font-weight:680;}
.doc p{margin:0 0 14px;color:#D3D9E4;}
.doc ul{margin:0 0 14px;padding-left:20px;color:#D3D9E4;}
.doc li{margin:0 0 8px;}
.doc strong{color:var(--text);font-weight:650;}
.doc code{font-family:var(--mono);font-size:13px;background:var(--panel-2);border:1px solid var(--line);border-radius:6px;padding:2px 7px;color:var(--amber);}
.callout{background:var(--panel);border:1px solid var(--mint-line);border-radius:12px;padding:16px 18px;margin:0 0 22px;}
.callout p{margin:0;color:var(--text);}

/* footer */
footer{margin-top:56px;border-top:1px solid var(--line);padding:28px 0 50px;}
.foot-links{display:flex;gap:20px;flex-wrap:wrap;font-size:14px;}
.foot-links a{color:var(--muted);text-decoration:none;}
.foot-links a:hover{color:var(--text);}
.foot-note{color:var(--muted);font-size:13px;margin-top:16px;}

@media (prefers-reduced-motion: reduce){ *{scroll-behavior:auto;} }