:root {
  --bg: #f7f8fb;
  --bg-2: #ffffff;
  --bg-3: #eef1f6;
  --fg: #111827;
  --fg-2: #4b5563;
  --fg-3: #6b7280;
  --line: #dde2ea;
  --accent: #0b6bcb;
  --accent-2: #0891b2;
  --accent-ink: #ffffff;
  --code-bg: #0f1623;
  --code-fg: #e5e9f0;
  --shadow: 0 1px 2px rgba(17, 24, 39, .06), 0 8px 24px rgba(17, 24, 39, .06);
  --ok: #15803d;
  --warn: #b45309;
  --bad: #b91c1c;
  --verified: #0e7490;
  --radius: 12px;
  --maxw: 1160px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0a0e15; --bg-2: #111722; --bg-3: #172030; --fg: #e8edf5; --fg-2: #aab4c3; --fg-3: #8390a3;
    --line: #243044; --accent: #5cb8ff; --accent-2: #3dd6e0; --accent-ink: #06121f; --code-bg: #0c121c;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 10px 30px rgba(0,0,0,.35);
    --ok: #4ade80; --warn: #fbbf24; --bad: #f87171; --verified: #67e8f9; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0a0e15; --bg-2: #111722; --bg-3: #172030; --fg: #e8edf5; --fg-2: #aab4c3; --fg-3: #8390a3;
  --line: #243044; --accent: #5cb8ff; --accent-2: #3dd6e0; --accent-ink: #06121f; --code-bg: #0c121c;
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 10px 30px rgba(0,0,0,.35);
  --ok: #4ade80; --warn: #fbbf24; --bad: #f87171; --verified: #67e8f9; color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 16px/1.6 "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre, kbd { font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
:not(pre) > code { font-size: .88em; background: var(--bg-3); border: 1px solid var(--line); padding: .08em .35em; border-radius: 6px; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -.02em; margin: 0 0 .5em; }
h1 { font-size: clamp(2.1rem, 5vw, 3.6rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.3rem); font-weight: 750; }
h3 { font-size: 1.15rem; font-weight: 650; }
p { margin: 0 0 1em; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.muted { color: var(--fg-2); }
.small { font-size: .9rem; }
.eyebrow { font: 600 .78rem/1 "JetBrains Mono", monospace; letter-spacing: .12em; text-transform: uppercase; color: var(--accent-2); margin-bottom: 14px; display: block; }

/* only-dark / only-light images */
.only-light { display: block; } .only-dark { display: none; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .only-light { display: none; } :root:not([data-theme="light"]) .only-dark { display: block; } }
:root[data-theme="dark"] .only-light { display: none; } :root[data-theme="dark"] .only-dark { display: block; }

/* nav */
.nav { position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--bg) 82%, transparent); backdrop-filter: saturate(1.4) blur(12px); border-bottom: 1px solid var(--line); }
.nav .wrap { display: flex; align-items: center; gap: 22px; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; font: 800 1.15rem/1 "JetBrains Mono", monospace; color: var(--fg); }
.brand:hover { text-decoration: none; }
.brand svg { width: 28px; height: 28px; }
.nav-links { display: flex; gap: 20px; margin-left: auto; align-items: center; }
.nav-links a { color: var(--fg-2); font-size: .94rem; font-weight: 500; }
.nav-links a:hover { color: var(--fg); text-decoration: none; }
.icon-btn { background: none; border: 1px solid var(--line); color: var(--fg-2); border-radius: 8px; width: 36px; height: 36px; display: grid; place-items: center; cursor: pointer; }
.icon-btn:hover { color: var(--fg); border-color: var(--fg-3); }
.icon-btn svg { width: 18px; height: 18px; }
.menu-btn { display: none; }
@media (max-width: 860px) {
  .menu-btn { display: grid; margin-left: auto; }
  .nav-links { display: none; position: absolute; top: 60px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; background: var(--bg-2); border-bottom: 1px solid var(--line); padding: 8px 20px 16px; }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 10px 0; border-bottom: 1px solid var(--line); }
  .nav-links .icon-btn { margin-top: 10px; }
}

/* buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 11px 18px; border-radius: 10px; font-weight: 600; font-size: .96rem; border: 1px solid transparent; cursor: pointer; transition: transform .12s ease, box-shadow .12s ease; }
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: var(--accent-ink); box-shadow: var(--shadow); }
.btn-ghost { border-color: var(--line); color: var(--fg); background: var(--bg-2); }
.btn svg { width: 18px; height: 18px; }

/* hero */
.hero { padding: 72px 0 40px; position: relative; }
.hero::before { content: ""; position: absolute; inset: -120px 0 auto 0; height: 560px; z-index: -1;
  background: radial-gradient(600px 300px at 20% 30%, color-mix(in srgb, var(--accent) 18%, transparent), transparent 70%),
              radial-gradient(500px 260px at 85% 10%, color-mix(in srgb, var(--accent-2) 16%, transparent), transparent 70%); }
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; }
@media (max-width: 960px) { .hero-grid { grid-template-columns: minmax(0, 1fr); } }
.hero h1 .grad { background: linear-gradient(90deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lede { font-size: 1.18rem; color: var(--fg-2); max-width: 38em; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 26px 0 18px; }
.pills { display: flex; flex-wrap: wrap; gap: 8px; }
.pill { font: 500 .78rem/1 "JetBrains Mono", monospace; padding: 6px 10px; border-radius: 999px; border: 1px solid var(--line); color: var(--fg-2); background: var(--bg-2); }
.pill.warn { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 40%, var(--line)); }
.shot { border-radius: var(--radius); border: 1px solid var(--line); box-shadow: var(--shadow); overflow: hidden; background: var(--bg-2); }
.hero .shot { transform: perspective(2000px) rotateY(-3deg); }
@media (max-width: 960px) { .hero .shot { transform: none; } }

/* sections */
section { padding: 72px 0; }
section.alt { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { max-width: 760px; margin-bottom: 36px; }
.grid { display: grid; gap: 18px; }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 960px) { .g3, .g4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .g2, .g3, .g4 { grid-template-columns: minmax(0, 1fr); } }
.grid > *, .hero-grid > *, .feature-panel > *, .docs > * { min-width: 0; }
.card { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
section.alt .card { background: var(--bg); }
.card h3 { display: flex; gap: 10px; align-items: center; }
.card p:last-child { margin-bottom: 0; }
.card .ico { width: 36px; height: 36px; border-radius: 9px; display: grid; place-items: center; background: color-mix(in srgb, var(--accent) 14%, transparent); color: var(--accent); flex: none; }
.card .ico svg { width: 20px; height: 20px; }

/* steps */
.steps { counter-reset: step; }
.step { position: relative; padding-left: 0; }
.step .num { font: 700 .8rem/1 "JetBrains Mono", monospace; color: var(--accent-2); margin-bottom: 10px; display: block; }

/* code */
pre { background: var(--code-bg); color: var(--code-fg); padding: 16px 18px; border-radius: 10px; overflow-x: auto; font-size: .86rem; line-height: 1.55; margin: 0 0 1em; border: 1px solid #1d2738; position: relative; }
pre .c { color: #7f8ea3; }
pre .p { color: #5cb8ff; user-select: none; }
.codebox { position: relative; }
.copy { position: absolute; top: 8px; right: 8px; font: 600 .72rem/1 "Inter", sans-serif; background: #1b2638; color: #c9d4e3; border: 1px solid #2a3850; border-radius: 6px; padding: 6px 8px; cursor: pointer; opacity: .85; }
.copy:hover { opacity: 1; }
.term { border-radius: var(--radius); overflow: hidden; border: 1px solid #1d2738; box-shadow: var(--shadow); }
.term-bar { background: #151d2b; padding: 10px 14px; display: flex; gap: 7px; align-items: center; }
.term-bar i { width: 11px; height: 11px; border-radius: 50%; background: #2c3a52; display: block; }
.term-bar span { margin-left: 8px; font: 500 .75rem/1 "JetBrains Mono", monospace; color: #7f8ea3; }
.term pre { margin: 0; border: 0; border-radius: 0; }

/* tabs */
.tabs { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 18px; }
.tab { border: 1px solid var(--line); background: var(--bg-2); color: var(--fg-2); padding: 8px 14px; border-radius: 999px; font: 600 .88rem/1 "Inter", sans-serif; cursor: pointer; }
.tab[aria-selected="true"] { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.panel[hidden] { display: none; }
.feature-panel { display: grid; grid-template-columns: 1fr 2fr; gap: 28px; align-items: center; }
@media (max-width: 860px) { .feature-panel { grid-template-columns: minmax(0, 1fr); } }

/* statuses */
.status-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
@media (max-width: 860px) { .status-list { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .status-list { grid-template-columns: 1fr; } }
.status { display: flex; gap: 12px; align-items: flex-start; padding: 12px 14px; border: 1px solid var(--line); border-radius: 10px; background: var(--bg); }
.status b { font-family: "JetBrains Mono", monospace; font-size: .86rem; display: block; }
.status span { font-size: .88rem; color: var(--fg-2); }
.swatch { width: 34px; height: 22px; border-radius: 5px; flex: none; margin-top: 2px; border: 2px solid var(--fg-3); }
.s-specified { border-style: dotted; }
.s-implemented { border-style: solid; border-color: var(--fg); }
.s-verified { border-color: var(--verified); box-shadow: 0 0 0 3px color-mix(in srgb, var(--verified) 30%, transparent), 0 0 10px var(--verified); }
.s-drift { border-color: var(--warn); position: relative; }
.s-drift::after { content: "!"; position: absolute; top: -9px; right: -8px; background: var(--warn); color: #111; font: 800 10px/14px sans-serif; width: 14px; height: 14px; border-radius: 50%; text-align: center; }
.s-missing { border-color: var(--bad); border-style: dotted; background: color-mix(in srgb, var(--bad) 12%, transparent); }
.s-orphan { border-color: var(--bad); border-style: dashed; }
.s-stale { border-color: var(--warn); border-style: double; border-width: 4px; }
.s-needs_review { border-color: var(--fg-2); border-style: dashed; }
.s-not_evaluable { border-width: 1px; border-style: dotted; background: transparent; position: relative; }
.s-not_evaluable::after { content: "∅"; position: absolute; inset: 0; display: grid; place-items: center; font-size: 12px; color: var(--fg-3); }

/* use cases */
.uc { display: flex; flex-direction: column; }
.uc .who { font: 600 .74rem/1 "JetBrains Mono", monospace; text-transform: uppercase; letter-spacing: .1em; color: var(--accent-2); margin-bottom: 8px; }
.uc ul { margin: 0; padding-left: 1.1em; color: var(--fg-2); font-size: .94rem; }
.uc li { margin: 3px 0; }
.uc .cmd { margin-top: auto; padding-top: 12px; }
.uc .cmd code { display: block; white-space: pre-wrap; word-break: break-word; font-size: .78rem; }

/* tables */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 10px; }
table { border-collapse: collapse; width: 100%; font-size: .92rem; }
th, td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: var(--bg-3); font-weight: 650; font-size: .84rem; }
tr:last-child td { border-bottom: 0; }
td code { white-space: nowrap; }

/* faq */
details { border: 1px solid var(--line); border-radius: 10px; padding: 14px 18px; background: var(--bg-2); margin-bottom: 10px; }
details summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
details summary::after { content: "+"; color: var(--fg-3); font-weight: 400; font-size: 1.2rem; line-height: 1; }
details[open] summary::after { content: "–"; }
details p { margin: 12px 0 0; color: var(--fg-2); }

/* callout */
.callout { border: 1px solid color-mix(in srgb, var(--warn) 45%, var(--line)); background: color-mix(in srgb, var(--warn) 8%, var(--bg-2)); border-radius: 10px; padding: 14px 16px; font-size: .94rem; margin: 0 0 1.2em; }
.callout.info { border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); background: color-mix(in srgb, var(--accent) 7%, var(--bg-2)); }

/* cta */
.cta { text-align: center; }
.cta .cta-row { justify-content: center; }

/* footer */
footer { border-top: 1px solid var(--line); padding: 40px 0; color: var(--fg-3); font-size: .9rem; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 24px; justify-content: space-between; }
footer a { color: var(--fg-2); }
.foot-links { display: flex; gap: 18px; flex-wrap: wrap; }

/* docs layout */
.docs { display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 48px; padding: 40px 0 80px; }
.docs aside { position: sticky; top: 80px; align-self: start; max-height: calc(100vh - 100px); overflow: auto; font-size: .92rem; }
.docs aside a { display: block; padding: 5px 10px; color: var(--fg-2); border-left: 2px solid transparent; }
.docs aside a:hover { color: var(--fg); text-decoration: none; }
.docs aside a.active { color: var(--accent); border-left-color: var(--accent); }
.docs aside .grp { font: 600 .72rem/1 "JetBrains Mono", monospace; text-transform: uppercase; letter-spacing: .1em; color: var(--fg-3); margin: 18px 0 6px 10px; }
.docs article { max-width: 820px; }
.docs article h2 { margin-top: 2.2em; padding-top: .4em; border-top: 1px solid var(--line); }
.docs article h2:first-of-type { margin-top: 0; border-top: 0; }
.docs article h3 { margin-top: 1.6em; }
.docs article ul, .docs article ol { padding-left: 1.3em; }
.docs article li { margin: 4px 0; }
@media (max-width: 900px) { .docs { grid-template-columns: minmax(0, 1fr); } .docs aside { position: static; max-height: none; border: 1px solid var(--line); border-radius: 10px; padding: 8px; } }
.os-tabs { margin-bottom: 1em; }
.os-tabs .tabs { margin-bottom: 10px; }