:root{
  --bg:#0a0b0d; --panel:#14161c; --panel2:#191c23; --line:rgba(255,255,255,.09);
  --ink:#f2efe6; --dim:#8b909b; --faint:#5c616b;
  --red:#ff3b30; --violet:#8b5cff; --amber:#f5b544;
  --mono:ui-monospace,"Cascadia Mono",Consolas,monospace;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);line-height:1.7;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
  background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.013) 0 1px,transparent 1px 3px);}
a{color:var(--ink)}

/* nav */
nav.topbar{display:flex;align-items:center;justify-content:space-between;max-width:820px;margin:0 auto;
  padding:20px 24px;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink)}
.chan{font-family:var(--mono);font-size:12px;color:var(--bg);background:var(--ink);padding:3px 7px;border-radius:3px;font-weight:700;letter-spacing:.02em}
.word{font-weight:800;font-size:19px;letter-spacing:-.04em}
.navlinks{display:flex;gap:22px;align-items:center}
.navlinks a{color:var(--dim);text-decoration:none;font-size:13px;font-weight:500;text-transform:uppercase;letter-spacing:.08em}
.navlinks a:hover,.navlinks a[aria-current]{color:var(--ink)}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--ink);color:var(--bg);font-weight:700;font-size:13px;
  text-transform:uppercase;letter-spacing:.06em;padding:10px 16px;border-radius:5px;text-decoration:none;
  transition:transform .14s ease,filter .14s ease}
.btn:hover{transform:translateY(-1px);filter:brightness(1.06)}
.btn.red{background:var(--red);color:#fff}
@media(max-width:620px){.navlinks{gap:12px}.navlinks a.hide-sm{display:none}}

/* doc layout */
.doc{max-width:780px;margin:0 auto;padding:34px 24px 90px}
.doc .eyebrow{font-family:var(--mono);color:var(--red);font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  margin:0 0 14px;display:flex;align-items:center;gap:9px}
.doc .eyebrow::before{content:"";width:26px;height:1px;background:var(--red)}
.doc h1{font-size:clamp(32px,5.5vw,46px);letter-spacing:-.045em;line-height:1;margin:0 0 16px;font-weight:800;text-transform:uppercase}
.doc .lede{color:var(--dim);font-size:18px;margin:0 0 12px;line-height:1.55}

.doc h2{font-size:22px;letter-spacing:-.01em;margin:48px 0 14px;font-weight:800;text-transform:uppercase;
  padding-top:22px;border-top:1px solid var(--line);display:flex;align-items:center;gap:11px}
.doc h2::before{content:"";width:10px;height:10px;background:var(--red);flex:none}
.doc h2:first-of-type{border-top:none;padding-top:0}
.doc h3{font-size:17px;margin:28px 0 8px;letter-spacing:-.01em;font-weight:700;color:var(--ink)}
.doc p,.doc li{color:var(--dim)}
.doc p{margin:0 0 14px}
.doc strong{color:var(--ink);font-weight:700}
.doc ul,.doc ol{margin:0 0 16px;padding-left:22px}
.doc li{margin:0 0 7px}
.doc li::marker{color:var(--faint)}
.doc code{background:rgba(255,255,255,.06);color:var(--ink);padding:1px 6px;border-radius:4px;font-size:.86em;font-family:var(--mono)}
.doc a{color:var(--ink);text-decoration:underline;text-decoration-color:var(--faint);text-underline-offset:3px}
.doc a:hover{text-decoration-color:var(--red);color:#fff}
.doc kbd{background:var(--panel2);border:1px solid var(--line);border-bottom-width:2px;border-radius:5px;padding:1px 7px;font-size:.82em;font-family:var(--mono);color:var(--ink)}

/* step list */
.steps{list-style:none;counter-reset:step;padding:0;margin:20px 0 26px}
.steps>li{counter-increment:step;position:relative;padding:2px 0 22px 54px;margin:0}
.steps>li::before{content:counter(step,decimal-leading-zero);position:absolute;left:0;top:0;width:36px;height:36px;
  border-radius:5px;display:grid;place-items:center;font-family:var(--mono);font-weight:700;font-size:14px;
  color:var(--bg);background:var(--ink)}
.steps>li::after{content:"";position:absolute;left:17px;top:42px;bottom:2px;width:1px;background:var(--line)}
.steps>li:last-child::after{display:none}
.steps h3{margin:6px 0 6px;color:var(--ink);font-size:17px}
.steps p{margin:0 0 8px}

/* callouts */
.note{display:flex;gap:12px;align-items:flex-start;padding:14px 16px;border-radius:8px;margin:0 0 20px;font-size:14.5px}
.note.tip{background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--dim);border-radius:0 8px 8px 0}
.note.warn{background:rgba(255,59,48,.05);border:1px solid rgba(255,59,48,.28)}
.note .ni{flex:none;font-family:var(--mono);font-size:11px;text-transform:uppercase;letter-spacing:.08em;font-weight:700;padding-top:2px}
.note p{margin:0;color:var(--dim)}
.note.tip .ni{color:var(--dim)}
.note.warn .ni{color:var(--red)}

/* cross-links */
.callout-cards{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:40px 0 0}
.callout-cards a{display:block;padding:18px 20px;border-radius:10px;background:var(--panel);border:1px solid var(--line);
  text-decoration:none;color:var(--ink);transition:border-color .18s ease,transform .18s ease}
.callout-cards a:hover{border-color:rgba(255,59,48,.5);transform:translateY(-2px)}
.callout-cards .k{font-family:var(--mono);font-size:11px;color:var(--red);font-weight:700;letter-spacing:.1em;text-transform:uppercase}
.callout-cards .t{font-size:17px;font-weight:700;margin-top:4px;text-transform:uppercase;letter-spacing:-.01em}
.callout-cards .d{font-size:13.5px;color:var(--faint);margin-top:4px}
@media(max-width:560px){.callout-cards{grid-template-columns:1fr}}

/* footer */
footer{padding:34px 0 46px;text-align:left;color:var(--faint);font-size:13px;border-top:1px solid var(--line);margin-top:48px}
.foot-links{margin-bottom:14px;display:flex;gap:22px;flex-wrap:wrap}
.foot-links a,footer .links a{color:var(--dim);text-decoration:none;font-family:var(--mono);font-size:12px;text-transform:uppercase;letter-spacing:.06em}
.foot-links a:hover,footer .links a:hover{color:var(--ink)}
footer .links{margin-bottom:14px;display:flex;gap:22px;justify-content:flex-start;flex-wrap:wrap}