/* Vardhold docs. Builds on /site.css (tokens, fonts, tables). Night header, paper reading surface, gold for the brand,
   verdict colours only where they mean block / ask / allow. */

/* An explicit theme choice wins over the system setting. */
:root[data-theme="light"] {
  --paper: #F3F2EF; --surface: #FFFFFF; --sunk: #E9E7E2; --ink: #101626; --muted: #59607A; --line: #DAD7D0;
  --gold-ink: #8A5A10; --gold-soft: #FBEBCF; --accent: #2B4FD8; --accent-soft: #E3E8FC;
  --allow: #1C7A4C; --allow-soft: #DDF1E6; --ask: #9A6410; --ask-soft: #FBEFD7; --block: #B8322A; --block-soft: #F8E0DD;
  color-scheme: light;
}
:root[data-theme="dark"] {
  --paper: #0D1220; --surface: #141B2D; --sunk: #10172A; --ink: #E7EBF3; --muted: #9AA4BA; --line: #26304A;
  --gold-ink: #F2BE6A; --gold-soft: #3A2A0E; --accent: #8EA5FF; --accent-soft: #1C2652;
  --allow: #52C68F; --allow-soft: #12301F; --ask: #E6AA45; --ask-soft: #33260C; --block: #F2705F; --block-soft: #3A1714;
  color-scheme: dark;
}
:root { --bar-h: 60px; --code-bg: #0A1020; --code-ink: #DCE3EF; --code-line: #222C47 }

body.docs { background: var(--paper); overflow-x: clip }
.sidebar-in { position: relative }
html { scroll-padding-top: calc(var(--bar-h) + 20px) }
.skip { position: absolute; left: -9999px; top: 8px; z-index: 100; background: var(--gold); color: #1A1206; padding: 10px 14px; border-radius: 8px; font-weight: 600 }
.skip:focus { left: 12px }
svg { flex: none }

/* Header */
.dbar { position: sticky; top: 0; z-index: 40; background: var(--night); color: var(--night-ink); border-bottom: 1px solid var(--night-line); padding-top: env(safe-area-inset-top) }
.dbar::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px; background: linear-gradient(90deg, transparent, rgba(246,180,76,.65) 50%, transparent) }
.dbar-in { height: var(--bar-h); display: flex; align-items: center; gap: 12px; max-width: 1480px; margin-inline: auto; padding-inline: 20px }
.dbar .brand { font-size: 1.05rem; gap: 9px }
.dbar .brand svg { width: 24px; height: 24px }
.dbar .crumb { font-size: 1.2rem; margin: 0 -2px }
.dbar-product, .dbar-docs { color: var(--night-ink); text-decoration: none; font: 650 1rem/1 var(--f-display); font-stretch: 92% }
.dbar-docs { color: #F6C46E }
.search-btn { margin-left: auto; display: flex; align-items: center; gap: 10px; min-width: 260px; height: 38px; padding: 0 10px 0 12px; border-radius: 9px; border: 1px solid var(--night-line); background: rgba(255,255,255,.04); color: var(--night-muted); font: 400 .9rem/1 var(--f-body); cursor: pointer }
.search-btn:hover { border-color: #3A4A70; color: var(--night-ink) }
.search-btn svg, .icon-btn svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round }
.search-btn kbd { margin-left: auto }
kbd { font: 500 .7rem/1 var(--f-mono); padding: 4px 6px; border-radius: 5px; border: 1px solid var(--night-line); color: var(--night-muted); background: rgba(255,255,255,.04) }
.dbar-links { display: flex; align-items: center; gap: 16px; font-size: .9rem; margin-left: 8px }
.dbar-links a { color: var(--night-muted); text-decoration: none }
.dbar-links a:hover { color: var(--night-ink) }
.dbar-links a.cta-sm { color: #1A1206; background: var(--gold); padding: 8px 13px; border-radius: 8px; font-weight: 600 }
.icon-btn { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 8px; border: 1px solid transparent; background: none; color: var(--night-muted); cursor: pointer }
.icon-btn:hover { color: var(--night-ink); border-color: var(--night-line) }
.menu-btn { display: none; margin-left: -6px }
.progress { position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; z-index: 1 }
.progress span { display: block; height: 100%; width: 0; background: var(--gold); box-shadow: 0 0 10px rgba(246,180,76,.8) }

/* Three columns: sections, the page, and where you are on it */
.dlayout { display: grid; grid-template-columns: 264px minmax(0, 1fr) 232px; max-width: 1480px; margin-inline: auto; align-items: start }
.sidebar { position: sticky; top: var(--bar-h); height: calc(100vh - var(--bar-h)); height: calc(100dvh - var(--bar-h)); overflow-y: auto; border-right: 1px solid var(--line); overscroll-behavior: contain }
.sidebar-in { padding: 28px 18px 32px 20px; display: grid; gap: 24px }
.nav-label { font: 500 .68rem/1 var(--f-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin: 0 0 10px 12px }
.nav-group ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 1px }
.nav-group a { display: block; padding: 7px 12px; border-radius: 7px; color: var(--ink); text-decoration: none; font-size: .93rem; line-height: 1.35; position: relative }
.nav-group a:hover { background: var(--sunk) }
.nav-group a[aria-current="page"] { background: var(--gold-soft); color: var(--gold-ink); font-weight: 600 }
.nav-group a[aria-current="page"]::before { content: ""; position: absolute; left: 0; top: 8px; bottom: 8px; width: 3px; border-radius: 3px; background: var(--gold) }
.nav-foot { display: grid; gap: 8px; border-top: 1px solid var(--line); padding: 18px 12px 0; font-size: .84rem }
.nav-foot a { color: var(--muted); text-decoration: none }
.nav-foot a:hover { color: var(--ink) }
.scrim { position: fixed; inset: var(--bar-h) 0 0; background: rgba(5,8,18,.55); z-index: 30 }

.dmain { min-width: 0; padding: 40px 56px 72px }
.doc { max-width: 780px; margin-inline: auto }
.toc { position: sticky; top: var(--bar-h); max-height: calc(100vh - var(--bar-h)); overflow-y: auto; padding: 40px 20px 32px 8px }
.toc .nav-label { margin-left: 0 }
.toc-list { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--line) }
.toc-list a { display: block; padding: 5px 0 5px 14px; margin-left: -1px; border-left: 2px solid transparent; color: var(--muted); text-decoration: none; font-size: .86rem; line-height: 1.35 }
.toc-list .l3 a { padding-left: 26px; font-size: .82rem }
.toc-list a:hover { color: var(--ink) }
.toc-list a.active { color: var(--ink); border-left-color: var(--gold); font-weight: 500 }
.to-top { display: inline-block; margin-top: 16px; font-size: .82rem; color: var(--muted) }
.toc-inline { display: none }

/* Page head */
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; font: 500 .78rem/1.4 var(--f-mono); color: var(--muted) }
.breadcrumb a { color: var(--muted); text-decoration: none }
.breadcrumb a:hover { color: var(--ink) }
.doc h1 { margin-top: 18px; font-size: clamp(2.2rem, 4.6vw, 3.3rem); font-weight: 780; font-stretch: 80%; line-height: 1; letter-spacing: -.02em }
.doc h1 em { font-style: normal; color: var(--gold-ink) }
.doc-lede { margin-top: 18px; font-size: 1.15rem; color: var(--muted); max-width: 62ch; line-height: 1.55 }
.doc-meta { display: flex; flex-wrap: wrap; gap: 6px 18px; margin-top: 18px; padding-bottom: 26px; border-bottom: 1px solid var(--line); font: 400 .78rem/1.4 var(--f-mono); color: var(--muted) }
.doc-meta span + span::before { content: "·"; margin-right: 18px; color: var(--line) }

/* Reading surface */
.prose { counter-reset: step; font-size: 1rem; line-height: 1.7 }
.prose > * + * { margin-top: 18px }
.prose h2 { font-size: clamp(1.45rem, 2.6vw, 1.8rem); font-weight: 720; font-stretch: 88%; line-height: 1.15; margin-top: 56px; scroll-margin-top: calc(var(--bar-h) + 20px) }
.prose h3 { font-size: 1.12rem; font-weight: 650; margin-top: 34px; scroll-margin-top: calc(var(--bar-h) + 20px) }
.prose h2 + *, .prose h3 + * { margin-top: 12px }
.prose > :first-child { margin-top: 32px }
.prose h2.step { counter-increment: step; display: flex; align-items: center; gap: 14px }
.prose h2.step::before { content: counter(step); flex: none; display: grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; background: var(--night); color: #F6C46E; font: 700 1.1rem/1 var(--f-display); box-shadow: 0 0 0 4px var(--gold-soft) }
.anchor { margin-left: 10px; color: var(--line); text-decoration: none; font-weight: 400; opacity: 0; transition: opacity .15s }
h2:hover .anchor, h3:hover .anchor, .anchor:focus { opacity: 1 }
.anchor:hover { color: var(--gold-ink) }
.prose p, .prose li { color: var(--ink) }
.prose .muted, .prose figcaption { color: var(--muted) }
.prose ul, .prose ol { padding-left: 1.3em; display: grid; gap: 6px }
.prose li, .tab-panel, .card, .help-strip > * { min-width: 0 }
.prose li > .code, .prose li > p { margin-block: 10px }
.prose li::marker { color: var(--muted) }
.prose strong, .prose b { font-weight: 600 }
.prose a { text-underline-offset: 3px; text-decoration-thickness: 1px }
.prose code { font: 400 .87em/1.4 var(--f-mono); background: var(--sunk); border: 1px solid var(--line); padding: 1px 5px; border-radius: 5px; overflow-wrap: anywhere }
.prose hr { border: 0; border-top: 1px solid var(--line); margin-block: 40px }
.prose .table-wrap { margin-top: 18px }
.prose table code { font-size: .82em }
.prose td:first-child:has(> code:only-child) { white-space: nowrap }
.prose td:first-child code { overflow-wrap: normal }
.prose td p { margin: 0 }

/* Code blocks */
.code { border-radius: 12px; overflow: hidden; background: var(--code-bg); border: 1px solid var(--code-line); box-shadow: 0 18px 40px -28px rgba(0,0,0,.6) }
.code-head { display: flex; justify-content: space-between; align-items: center; padding: 8px 10px 8px 16px; border-bottom: 1px solid var(--code-line); font: 500 .72rem/1 var(--f-mono); letter-spacing: .08em; text-transform: uppercase; color: #8C97B2 }
.copy { font: 500 .74rem/1 var(--f-mono); color: #C8D1E4; background: rgba(255,255,255,.06); border: 1px solid var(--code-line); border-radius: 6px; padding: 6px 10px; cursor: pointer }
.copy:hover { background: rgba(255,255,255,.12) }
.copy.done { color: #52C68F; border-color: #1E5A3C }
.code pre { margin: 0; padding: 16px 18px; overflow-x: auto; font: 400 .86rem/1.65 var(--f-mono); color: var(--code-ink); tab-size: 2 }
.code code { font: inherit; background: none; border: 0; padding: 0; color: inherit; overflow-wrap: normal }
.code .c { color: #7E8AA6 }
.code .k { color: #F6C46E }
.code .s { color: #9BD8B4 }
.code-prompt pre::before { content: "›"; color: #F6C46E; margin-right: 10px }

/* Callouts */
.callout { display: grid; grid-template-columns: 22px 1fr; gap: 12px; padding: 16px 18px; border-radius: 12px; border: 1px solid var(--line); background: var(--surface) }
.callout::before { content: "i"; display: grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; font: 700 .78rem/1 var(--f-mono); background: var(--accent-soft); color: var(--accent) }
.callout > * { grid-column: 2; margin: 0 }
.callout > * + * { margin-top: 8px }
.callout.tip::before { content: "✓"; background: var(--allow-soft); color: var(--allow) }
.callout.warn::before { content: "!"; background: var(--ask-soft); color: var(--ask) }
.callout.stop::before { content: "!"; background: var(--block-soft); color: var(--block) }
.callout.warn { border-color: color-mix(in srgb, var(--ask) 35%, var(--line)) }
.callout.stop { border-color: color-mix(in srgb, var(--block) 35%, var(--line)) }
.callout b:first-child { display: block; margin-bottom: 2px }

/* Fold-outs */
.prose details { border: 1px solid var(--line); border-radius: 10px; background: var(--surface) }
.prose details summary { cursor: pointer; padding: 12px 16px; font-weight: 600; list-style: none; display: flex; align-items: center; gap: 10px }
.prose details summary::-webkit-details-marker { display: none }
.prose details summary::before { content: ""; width: 7px; height: 7px; border-right: 2px solid var(--muted); border-bottom: 2px solid var(--muted); transform: rotate(-45deg); transition: transform .15s; flex: none }
.prose details[open] summary::before { transform: rotate(45deg) }
.prose details > :not(summary) { margin: 0 16px 14px }
.prose details > summary + * { margin-top: 2px }
details + details { margin-top: 8px !important }

/* Tabs (no script: every panel shows with its own label) */
.tabs { border: 1px solid var(--line); border-radius: 12px; background: var(--surface); overflow: hidden }
.tab-list { display: flex; gap: 2px; padding: 6px; border-bottom: 1px solid var(--line); background: var(--sunk); overflow-x: auto }
.tab-list button { font: 500 .88rem/1 var(--f-body); padding: 9px 14px; border-radius: 7px; border: 0; background: none; color: var(--muted); cursor: pointer; white-space: nowrap }
.tab-list button[aria-selected="true"] { background: var(--surface); color: var(--ink); box-shadow: 0 1px 2px rgba(0,0,0,.08) }
.tab-panel { padding: 18px }
.tab-panel > * + * { margin-top: 14px }
.tabs:not(.ready) .tab-panel::before { content: attr(data-tab); display: block; font: 500 .72rem/1 var(--f-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: 12px }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px }
.cards.three { grid-template-columns: repeat(3, 1fr) }
.card { display: grid; gap: 6px; align-content: start; padding: 18px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); color: var(--ink); text-decoration: none !important; transition: border-color .15s, transform .15s }
a.card:hover { border-color: var(--gold); transform: translateY(-1px) }
.card b { font: 650 1rem/1.25 var(--f-display); font-stretch: 95% }
.card span { color: var(--muted); font-size: .9rem; line-height: 1.5 }
.card .k { font: 500 .68rem/1 var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--gold-ink) }

/* Key facts and spec sheet */
.facts { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 12px; overflow: hidden }
.facts div { background: var(--surface); padding: 16px; display: grid; gap: 4px; align-content: start }
.facts b { font: 720 1.35rem/1.1 var(--f-display); font-stretch: 85% }
.facts span { color: var(--muted); font-size: .84rem; line-height: 1.4 }
.spec { display: grid; grid-template-columns: 220px 1fr; margin: 0; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: var(--surface) }
.spec dt, .spec dd { margin: 0; padding: 12px 16px; border-top: 1px solid var(--line); font-size: .93rem }
.spec dt { font-weight: 600; background: var(--sunk) }
.spec dt:first-of-type, .spec dt:first-of-type + dd { border-top: 0 }
.spec-actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center }
.btn-soft { display: inline-flex; align-items: center; gap: 8px; font: 600 .9rem/1 var(--f-body); padding: 11px 15px; border-radius: 9px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); text-decoration: none !important; cursor: pointer }
.btn-soft:hover { border-color: var(--gold) }
.btn-soft.gold { background: var(--gold); border-color: var(--gold); color: #1A1206 }

/* Verdicts and coverage */
.v { display: inline-block; font: 600 .7rem/1 var(--f-mono); letter-spacing: .05em; text-transform: uppercase; padding: 5px 8px; border-radius: 5px; white-space: nowrap }
.v.log { color: var(--muted); background: var(--sunk); border: 1px solid var(--line) }
.v.pre { color: var(--accent); background: var(--accent-soft) }

/* Diagram */
.figure { border: 1px solid var(--line); border-radius: 14px; background: var(--surface); padding: 18px; margin-inline: 0 }
.figure svg { width: 100%; height: auto; display: block }
.figure figcaption { margin-top: 12px; font-size: .86rem }
.dg-zone { fill: var(--sunk); stroke: var(--line) }
.dg-box { fill: var(--surface); stroke: var(--line); stroke-width: 1.2 }
.dg-hot { fill: var(--gold-soft); stroke: var(--gold) }
.dg-dark { fill: var(--night); stroke: var(--night-line) }
.dg-t { fill: var(--ink); font: 600 13px var(--f-body) }
.dg-s { fill: var(--muted); font: 400 11px var(--f-body) }
.dg-l { fill: var(--muted); font: 500 10px var(--f-mono); letter-spacing: .1em; text-transform: uppercase }
.dg-w { fill: #E9EDF6; font: 600 13px var(--f-body) }
.dg-ws { fill: #A2ACC2; font: 400 11px var(--f-body) }
.dg-a { stroke: var(--muted); stroke-width: 1.4; fill: none; marker-end: url(#arr) }
.dg-ag { stroke: var(--gold); stroke-width: 1.6; fill: none; marker-end: url(#arrg) }
.dg-m { fill: var(--muted) }
.dg-mg { fill: var(--gold) }

/* End of page */
.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 64px }
.pager a { display: grid; gap: 4px; padding: 16px 18px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); text-decoration: none; color: var(--ink); transition: border-color .15s }
.pager a:hover { border-color: var(--gold) }
.pager span { display: inline-flex; align-items: center; gap: 6px; font: 500 .72rem/1 var(--f-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted) }
.pager svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round }
.pager b { font: 650 1.05rem/1.3 var(--f-display); font-stretch: 95% }
.pager .next { text-align: right; justify-items: end }
.help-strip { margin-top: 20px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px; padding: 18px; border-radius: 12px; background: var(--sunk); border: 1px solid var(--line) }
.help-strip div { display: grid; gap: 2px; margin-right: auto; min-width: 0 }
.help-strip span { color: var(--muted); font-size: .9rem }
.dfoot { border-top: 1px solid var(--line); color: var(--muted); font-size: .84rem; padding-bottom: env(safe-area-inset-bottom) }
.dfoot-in { max-width: 1480px; margin-inline: auto; padding: 24px 20px 36px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px }

/* Search */
.search { position: fixed; inset: 0; z-index: 60; background: rgba(5,8,18,.6); backdrop-filter: blur(3px); display: grid; justify-items: center; align-items: start; padding: 10vh 16px 16px }
.search[hidden] { display: none }
.search-box { width: min(680px, 100%); background: var(--surface); border: 1px solid var(--line); border-radius: 14px; box-shadow: 0 40px 80px -30px rgba(0,0,0,.7); overflow: hidden; display: grid; max-height: 76vh; grid-template-rows: auto 1fr auto }
.search-field { display: flex; align-items: center; gap: 10px; padding: 0 14px; border-bottom: 1px solid var(--line); color: var(--muted) }
.search-field svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round }
.search-field input { flex: 1; min-width: 0; border: 0; outline: 0; background: none; color: var(--ink); font: 400 1.05rem/1 var(--f-body); padding: 18px 0 }
.search-field input::-webkit-search-cancel-button { display: none }
.search kbd { color: var(--muted); border-color: var(--line); background: var(--sunk) }
.search-results { list-style: none; margin: 0; padding: 8px; overflow-y: auto; min-height: 60px }
.search-results li a { display: grid; gap: 3px; padding: 10px 12px; border-radius: 9px; color: var(--ink); text-decoration: none }
.search-results li[aria-selected="true"] a { background: var(--gold-soft) }
.search-results .r-path { font: 500 .7rem/1.3 var(--f-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--muted) }
.search-results .r-title { font-weight: 600 }
.search-results .r-text { color: var(--muted); font-size: .86rem; line-height: 1.45; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden }
.search-results mark { background: none; color: var(--gold-ink); font-weight: 600 }
.search-empty { padding: 18px 12px; color: var(--muted); font-size: .92rem }
.search-foot { display: flex; gap: 18px; padding: 10px 16px; border-top: 1px solid var(--line); font-size: .78rem; color: var(--muted); margin: 0 }
.search-foot kbd { margin-right: 4px }

/* Responsive */
@media (max-width: 1240px) {
  .dlayout { grid-template-columns: 250px minmax(0, 1fr) }
  .toc { display: none }
  .toc-inline { display: block; margin-top: 18px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface) }
  .toc-inline summary { cursor: pointer; padding: 11px 14px; font: 500 .74rem/1 var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--muted) }
  .toc-inline .toc-list { margin: 0 14px 12px }
  .dmain { padding-inline: 40px }
}
@media (max-width: 1000px) { .search-btn { min-width: 0 } .search-btn span, .search-btn kbd { display: none } .dbar-links a:not(.cta-sm) { display: none } }
@media (max-width: 900px) {
  .dlayout { grid-template-columns: minmax(0, 1fr) }
  .menu-btn { display: grid }
  .sidebar { position: fixed; top: var(--bar-h); left: 0; bottom: 0; height: auto; width: min(300px, 86vw); background: var(--paper); z-index: 35; transform: translateX(-102%); transition: transform .2s ease; border-right: 1px solid var(--line) }
  body.nav-open .sidebar { transform: none }
  body.nav-open { overflow: hidden }
  .dmain { padding: 28px 16px 56px }
  .facts { grid-template-columns: repeat(2, 1fr) }
  .cards.three { grid-template-columns: 1fr 1fr }
}
@media (max-width: 640px) {
  .dbar-in { padding-inline: 12px; gap: 8px }
  .dbar .brand span, .dbar .brand + .crumb { display: none }
  .dbar-links a.cta-sm { display: none }
  .cards, .cards.three { grid-template-columns: 1fr }
  .spec { grid-template-columns: 1fr }
  .spec dt { border-top: 1px solid var(--line) }
  .spec dd { border-top: 0 }
  .pager { grid-template-columns: 1fr }
  .doc-meta span + span::before { display: none }
}
@media (max-width: 420px) { .facts { grid-template-columns: 1fr } }

/* Print: the page itself, for spec sheets and security packages */
@media print {
  .dbar, .sidebar, .toc, .toc-inline, .pager, .help-strip, .dfoot, .search, .copy, .anchor, .spec-actions, .scrim { display: none !important }
  body.docs { background: #fff; color: #000 }
  .dlayout { display: block }
  .dmain { padding: 0 }
  .doc { max-width: none }
  .code { box-shadow: none }
  .prose h2 { break-after: avoid } .spec, .table-wrap, .facts, .callout, .figure { break-inside: avoid }
  a { color: inherit; text-decoration: none }
}