:root {
  --bg: #f7f7fb; --panel: #ffffff; --sunk: #eef0f7; --fg: #141428; --muted: #5d6178; --line: #dfe2ee;
  --accent: #4f46e5; --accent-2: #0ea5e9; --gold: #f59e0b; --accent-fg: #ffffff;
  --hero-1: #1e1b4b; --hero-2: #0b2540; --code-bg: #0f1530; --code-fg: #e6e9ff;
  --shadow: 0 1px 2px rgba(20, 20, 40, .05), 0 12px 32px rgba(20, 20, 40, .08);
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c0e1a; --panel: #141729; --sunk: #1b1f36; --fg: #eceefa; --muted: #a0a5c0; --line: #272b46;
    --accent: #818cf8; --accent-2: #38bdf8; --accent-fg: #0c0e1a; --code-bg: #0a0d1f;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 12px 32px rgba(0, 0, 0, .35);
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.6 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }
a { color: var(--accent); }
code { font-family: var(--mono); font-size: .9em; background: var(--sunk); padding: .1em .35em; border-radius: 5px; }
img { max-width: 100%; height: auto; }
.wrap { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
h1, h2, h3 { line-height: 1.15; letter-spacing: -.02em; }
h2 { font-size: clamp(28px, 4vw, 40px); margin: 0 0 12px; }
h3 { font-size: 18px; margin: 0 0 8px; }
.sub { color: var(--muted); font-size: 18px; max-width: 720px; margin: 0 0 32px; }
.eyebrow { text-transform: uppercase; letter-spacing: .12em; font-size: 12.5px; font-weight: 700; color: var(--accent-2); margin: 0 0 12px; }

/* nav */
.nav { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 82%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.nav-in { display: flex; align-items: center; justify-content: space-between; height: 60px; gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 19px; color: var(--fg); text-decoration: none; letter-spacing: -.02em; }
.nav nav { display: flex; gap: 22px; align-items: center; }
.nav nav a { color: var(--muted); text-decoration: none; font-size: 15px; }
.nav nav a:hover { color: var(--fg); }
.nav nav a.gh { color: var(--fg); border: 1px solid var(--line); padding: 6px 12px; border-radius: 9px; }

/* hero */
.hero { position: relative; overflow: hidden; color: #fff; background: radial-gradient(900px 500px at 78% 40%, rgba(99, 102, 241, .38), transparent 60%), linear-gradient(135deg, var(--hero-1), #111a3e 55%, var(--hero-2)); }
.net { position: absolute; inset: 0; opacity: .5;
  background-image:
    radial-gradient(circle at 0 0, rgba(186, 230, 253, .35) 1.6px, transparent 2px),
    linear-gradient(60deg, transparent 49.4%, rgba(125, 211, 252, .08) 50%, transparent 50.6%),
    linear-gradient(-60deg, transparent 49.4%, rgba(125, 211, 252, .08) 50%, transparent 50.6%);
  background-size: 72px 62px; }
.hero-in { position: relative; display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: 40px; align-items: center; padding-top: 72px; padding-bottom: 80px; }
.hero h1 { font-size: clamp(38px, 6vw, 64px); margin: 0 0 18px; }
.hero h1 span { background: linear-gradient(90deg, #fde68a, #f59e0b); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .eyebrow { color: #7dd3fc; }
.lede { font-size: 19px; color: #c7d2fe; max-width: 620px; margin: 0 0 28px; }
.hero-art { display: flex; justify-content: center; }
.hero-art img { width: min(360px, 80%); filter: drop-shadow(0 20px 60px rgba(245, 158, 11, .25)); }
.cta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 28px; }
.btn { display: inline-flex; align-items: center; padding: 11px 20px; border-radius: 11px; font-weight: 650; text-decoration: none; color: #fff; border: 1px solid rgba(255, 255, 255, .28); }
.btn:hover { background: rgba(255, 255, 255, .08); }
.btn.primary { background: linear-gradient(135deg, #f59e0b, #fbbf24); color: #1e1b4b; border-color: transparent; }
.btn.primary:hover { filter: brightness(1.06); }

/* terminal */
.term { position: relative; background: var(--code-bg); border: 1px solid rgba(255, 255, 255, .12); border-radius: 14px; max-width: 620px; box-shadow: 0 20px 50px rgba(0, 0, 0, .3); }
.term-bar { display: flex; align-items: center; gap: 6px; padding: 10px 14px; border-bottom: 1px solid rgba(255, 255, 255, .08); font-size: 12.5px; color: #9aa3cf; }
.term-bar i { width: 10px; height: 10px; border-radius: 50%; background: #3b4271; }
.term-bar span { margin-left: 8px; }
.term pre { padding-right: 64px; }
.term pre, .card pre { margin: 0; padding: 16px 18px; overflow-x: auto; white-space: pre-wrap; overflow-wrap: anywhere; }
.term code, .card pre code { background: none; padding: 0; color: var(--code-fg); font-size: 14px; line-height: 1.7; }
.card pre code { font-size: 13px; }
.term .c { color: #7dd3fc; }
.term.small { margin-top: 22px; }
.copy { position: absolute; top: 7px; right: 10px; font: 600 12px/1 inherit; color: #c7d2fe; background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .15); border-radius: 7px; padding: 6px 10px; cursor: pointer; }
.copy:hover { background: rgba(255, 255, 255, .16); }

/* sections */
.band { padding: 88px 24px 24px; }
.steps { list-style: none; counter-reset: s; padding: 0; margin: 0 0 28px; display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 14px; }
.steps li { counter-increment: s; background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 18px; box-shadow: var(--shadow); }
.steps li::before { content: counter(s); display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; margin-bottom: 10px; font-weight: 800; font-size: 14px; color: #1e1b4b; background: linear-gradient(135deg, #7dd3fc, #fbbf24); }
.steps b { display: block; font-size: 17px; margin-bottom: 4px; }
.steps span { color: var(--muted); font-size: 14.5px; }
.classes { display: flex; flex-wrap: wrap; gap: 8px; }
.classes span { background: var(--sunk); border: 1px solid var(--line); border-radius: 999px; padding: 4px 12px; font-size: 13.5px; color: var(--muted); }
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 48px; align-items: center; }
.ticks { list-style: none; padding: 0; margin: 20px 0 0; display: grid; gap: 12px; }
.ticks li { padding-left: 30px; position: relative; color: var(--muted); }
.ticks li b { color: var(--fg); }
.ticks li::before { content: ""; position: absolute; left: 4px; top: 7px; width: 12px; height: 12px; transform: rotate(45deg); border-radius: 2px; background: linear-gradient(135deg, #7dd3fc, #4f46e5); }
.shot { margin: 0; }
.shot img { display: block; border-radius: 14px; border: 1px solid var(--line); box-shadow: var(--shadow); background: var(--panel); }
.shot.wide { margin-bottom: 18px; }
.shot figcaption { color: var(--muted); font-size: 14.5px; margin-top: 10px; }
.shot figcaption b { color: var(--fg); }
.grid3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.grid2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin-bottom: 28px; }
.split.tight { gap: 32px; align-items: start; }
.split.tight .term { margin-top: 0; max-width: none; }
.secure { margin-top: 28px; border-radius: 14px; padding: 20px 22px; background: var(--panel); border: 1px solid var(--line); border-left: 4px solid var(--gold); }
.secure p { margin: 0; color: var(--muted); }
.cfgband { margin-top: 40px; align-items: center; }
.cfgband .sub { margin-bottom: 14px; }
.btn-link { font-weight: 650; text-decoration: none; }
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 20px; box-shadow: var(--shadow); min-width: 0; }
.card pre { background: var(--code-bg); border-radius: 10px; margin: 10px 0 12px; }
.card p { margin: 0; color: var(--muted); font-size: 14.5px; }
.card h3 a { color: var(--fg); text-decoration: none; }
.card h3 a::after { content: " \2192"; color: var(--accent); }
.card h3 a:hover { color: var(--accent); }
.myth { margin-top: 88px; padding: 72px 0; text-align: center; color: #fff; background: linear-gradient(135deg, var(--hero-1), var(--hero-2)); }
.myth blockquote { font-size: clamp(20px, 2.6vw, 26px); max-width: 800px; margin: 18px auto 14px; font-style: italic; color: #fde68a; }
.myth p { max-width: 680px; margin: 0 auto; color: #c7d2fe; }
.foot { padding: 28px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
.foot-in { display: flex; gap: 16px; justify-content: space-between; align-items: center; flex-wrap: wrap; }
.foot .brand { font-size: 16px; }

@media (max-width: 900px) {
  .hero-in, .split { grid-template-columns: minmax(0, 1fr); }
  .hero-art { display: none; }
  .grid3, .grid2, .cards { grid-template-columns: minmax(0, 1fr); }
  .nav nav a:not(.gh) { display: none; }
}
@media (max-width: 520px) {
  .wrap { padding: 0 16px; }
  .band { padding: 64px 16px 16px; }
  .hero-in { padding-top: 48px; padding-bottom: 56px; }
  .lede { font-size: 17px; }
}

/* docs */
.nav nav a[aria-current="page"] { color: var(--fg); font-weight: 650; }
.docs { display: grid; grid-template-columns: 220px minmax(0, 1fr) 210px; gap: 44px; padding-top: 36px; padding-bottom: 72px; }
.side, .toc { position: sticky; top: 84px; align-self: start; max-height: calc(100vh - 100px); overflow-y: auto; font-size: 14.5px; }
.side summary { display: none; }
.side p, .toc p { text-transform: uppercase; letter-spacing: .1em; font-size: 11.5px; font-weight: 700; color: var(--muted); margin: 18px 0 6px; }
.side p:first-child, .toc p:first-child { margin-top: 0; }
.side ul, .toc ul { list-style: none; margin: 0; padding: 0; }
.side a, .toc a { display: block; padding: 5px 10px; border-radius: 8px; color: var(--muted); text-decoration: none; line-height: 1.35; }
.side a:hover, .toc a:hover { color: var(--fg); background: var(--sunk); }
.side a[aria-current="page"] { color: var(--accent); background: color-mix(in srgb, var(--accent) 12%, transparent); font-weight: 650; }
.toc { border-left: 1px solid var(--line); padding-left: 10px; font-size: 13.5px; }
.toc li.l3 a { padding-left: 22px; }
.doc { min-width: 0; }
.doc > h1 { font-size: clamp(32px, 4.4vw, 44px); margin: 0 0 10px; }
.doc > .sub { margin-bottom: 28px; }
.doc h2 { font-size: 27px; margin: 48px 0 14px; padding-top: 22px; border-top: 1px solid var(--line); }
.doc h3 { font-size: 20px; margin: 32px 0 10px; }
.doc h4 { font-size: 16.5px; margin: 24px 0 8px; }
.doc h2, .doc h3, .doc h4 { scroll-margin-top: 80px; }
.doc p, .doc li { overflow-wrap: break-word; }
.doc ul, .doc ol { padding-left: 24px; }
.doc li { margin: 4px 0; }
.doc pre { background: var(--code-bg); border: 1px solid rgba(255, 255, 255, .08); border-radius: 12px; padding: 14px 16px; overflow-x: auto; margin: 16px 0; }
.doc .codeblock { position: relative; margin: 16px 0; }
.doc .codeblock pre { margin: 0; padding-top: 44px; }
.doc .codeblock .copy { top: 8px; right: 8px; }
.doc pre code { background: none; padding: 0; color: var(--code-fg); font-size: 13.5px; line-height: 1.65; }
.doc .table { overflow-x: auto; margin: 16px 0; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); }
.doc table { border-collapse: collapse; width: 100%; font-size: 14.5px; }
.doc th, .doc td { padding: 9px 12px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
.doc tr:last-child td { border-bottom: 0; }
.doc th { background: var(--sunk); font-size: 13.5px; }
.doc td code { white-space: nowrap; }
.doc blockquote { margin: 18px 0; padding: 12px 18px; border-radius: 10px; background: var(--panel); border: 1px solid var(--line); border-left: 4px solid var(--gold); color: var(--muted); }
.doc blockquote p { margin: 0; }
.doc img { border-radius: 12px; border: 1px solid var(--line); box-shadow: var(--shadow); }
.doc hr { border: 0; border-top: 1px solid var(--line); margin: 32px 0; }
.doc table img { border: 0; box-shadow: none; }
.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 56px; }
.pager a { display: block; padding: 14px 18px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); text-decoration: none; font-weight: 650; }
.pager a:hover { border-color: var(--accent); }
.pager a span { display: block; font-size: 12.5px; font-weight: 500; color: var(--muted); }
.pager .next { text-align: right; grid-column: 2; }
.edit { margin-top: 20px; font-size: 13.5px; color: var(--muted); }

@media (max-width: 1180px) {
  .docs { grid-template-columns: 210px minmax(0, 1fr); }
  .toc { display: none; }
}
@media (max-width: 900px) {
  .nav nav a.keep { display: inline; }
}
@media (max-width: 820px) {
  .docs { grid-template-columns: minmax(0, 1fr); gap: 24px; padding-top: 20px; }
  .side { position: static; max-height: none; padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); }
  .side summary { display: flex; gap: 10px; align-items: baseline; cursor: pointer; font-weight: 700; }
  .side summary span { color: var(--muted); font-weight: 500; font-size: 14px; }
  .side[open] summary { margin-bottom: 12px; }
  .side ul { display: flex; flex-wrap: wrap; gap: 4px; }
  .side a { padding: 4px 10px; background: var(--sunk); }
  .pager { grid-template-columns: minmax(0, 1fr); }
  .pager .next { grid-column: 1; }
}