/*
 * AFTRIMGE website.
 * The application's visual language, at reading size: obsidian ground,
 * hairline rules instead of cards, tracked uppercase labels, monospace for
 * anything the engine produces, colour reserved for event kinds and the
 * playhead. System fonts only; nothing is loaded from anywhere else.
 */

:root {
  --void: #050506;
  --obsidian: #0a0a0c;
  --slate: #101013;
  --raised: #16161a;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);
  --ink: #ececf0;
  --ink-dim: #9a9aa6;
  --ink-faint: #6b6b76;
  --create: #6fd3a4;
  --modify: #e2b148;
  --delete: #ff5f56;
  --rename: #64a6ff;
  --playhead: #ff4b28;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", "JetBrains Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: "Inter", "Segoe UI Variable Text", "Segoe UI", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  --wrap: 1180px;
  --gutter: clamp(16px, 4vw, 40px);
  --ease: cubic-bezier(0.2, 0.7, 0.1, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-padding-top: 88px; }

body {
  margin: 0;
  background: var(--void);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { max-width: 100%; }

a { color: var(--ink); text-decoration-color: var(--line-strong); text-underline-offset: 3px; }
a:hover { text-decoration-color: var(--playhead); }

:focus-visible { outline: 2px solid var(--playhead); outline-offset: 3px; border-radius: 1px; }

::selection { background: rgba(255, 75, 40, 0.35); }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding-inline: var(--gutter); }

.mono { font-family: var(--mono); font-size: 0.92em; }
.dim { color: var(--ink-dim); }

.label, .eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin: 0 0 12px;
}
.eyebrow { color: var(--playhead); }

.skip {
  position: absolute; left: 12px; top: -60px; z-index: 100;
  background: var(--ink); color: var(--void); padding: 8px 14px; text-decoration: none;
}
.skip:focus { top: 12px; }

main:focus { outline: none; }

/* ---------------------------------------------------------------- header */

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(5, 5, 6, 0.86);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header__inner { display: flex; align-items: center; gap: 24px; min-height: 64px; }

.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 700; letter-spacing: 0.2em; font-size: 14px; }
.mark { width: 28px; height: 28px; fill: var(--ink); }
.mark line { stroke-width: 1.2; }
.mark__rule { stroke: var(--ink-dim); }
.mark__head { stroke: var(--playhead); stroke-width: 1.6 !important; }

.site-nav { margin-left: auto; display: flex; align-items: center; gap: 24px; }
.site-nav ul { display: flex; gap: 22px; list-style: none; margin: 0; padding: 0; }
.site-nav a:not(.button) { text-decoration: none; color: var(--ink-dim); font-size: 14px; }
.site-nav a:not(.button):hover, .site-nav a[aria-current="page"] { color: var(--ink); }
.site-nav a[aria-current="page"] { box-shadow: inset 0 -1px 0 var(--playhead); }

.nav-toggle { display: none; margin-left: auto; background: none; border: 1px solid var(--line-strong); color: var(--ink); font: inherit; font-size: 13px; padding: 6px 12px; cursor: pointer; }

@media (max-width: 900px) {
  .nav-toggle { display: inline-block; }
  .site-nav { display: none; position: absolute; left: 0; right: 0; top: 64px; background: var(--void); border-bottom: 1px solid var(--line); padding: 16px var(--gutter) 22px; flex-direction: column; align-items: stretch; gap: 16px; }
  .site-nav.is-open { display: flex; }
  .site-nav ul { flex-direction: column; gap: 0; }
  .site-nav li a { display: block; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 16px; }
}

/* --------------------------------------------------------------- buttons */

.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 0 20px;
  background: var(--ink); color: var(--void);
  border: 1px solid var(--ink);
  font: inherit; font-size: 14px; font-weight: 600; letter-spacing: 0.02em;
  text-decoration: none; cursor: pointer;
  transition: background 160ms var(--ease), color 160ms var(--ease), border-color 160ms var(--ease);
}
.button:hover { background: var(--playhead); border-color: var(--playhead); color: var(--void); }
.button--ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.button--ghost:hover { background: transparent; color: var(--ink); border-color: var(--ink); }
.button--small { min-height: 34px; padding: 0 14px; font-size: 13px; }
.button[disabled], .button[aria-disabled="true"] { opacity: 0.35; cursor: not-allowed; }

.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0 0; }
.cta-row--center { justify-content: center; }

.link-arrow { text-decoration: none; font-weight: 600; }
.link-arrow::after { content: " \2192"; color: var(--playhead); }

/* ------------------------------------------------------------------ hero */

.hero { border-bottom: 1px solid var(--line); overflow: hidden; }
.hero__grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; padding-block: clamp(56px, 10vw, 120px); }
.hero__title { font-size: clamp(48px, 9vw, 112px); line-height: 0.92; letter-spacing: 0.14em; margin: 0 0 24px; font-weight: 800; }
.hero__lede { font-size: clamp(18px, 2vw, 22px); color: var(--ink); max-width: 34ch; margin: 0; line-height: 1.45; }
.hero__note { font-size: 13px; margin-top: 18px; }

.hero__stack { border: 1px solid var(--line); padding: 28px; background: linear-gradient(180deg, var(--obsidian), var(--void)); }
.stack { display: flex; flex-direction: column; gap: 6px; font-family: var(--mono); font-size: 15px; }
.stack__name { color: var(--ink-faint); text-decoration: line-through; text-decoration-color: rgba(255, 95, 86, 0.5); }
.stack__name:last-child { color: var(--ink-dim); }
.hero__stack-caption { font-size: 12px; margin: 16px 0 0; }

.hero__timeline { position: relative; height: 64px; margin-top: 28px; }
.tl-rule { position: absolute; left: 0; right: 0; top: 50%; height: 1px; background: var(--line-strong); }
.tl-dot { position: absolute; top: 50%; width: 9px; height: 9px; margin: -4.5px 0 0 -4.5px; border-radius: 50%; }
.tl-dot--create { background: var(--create); }
.tl-dot--modify { background: var(--modify); }
.tl-dot--rename { background: var(--rename); }
.tl-dot--delete { background: var(--delete); }
.tl-at-1 { left: 8%; } .tl-at-2 { left: 29%; } .tl-at-3 { left: 47%; } .tl-at-4 { left: 70%; } .tl-at-5 { left: 91%; }
.tl-head { position: absolute; top: 0; bottom: 0; left: 58%; width: 2px; background: var(--playhead); box-shadow: 0 0 18px rgba(255, 75, 40, 0.55); animation: scrub 9s var(--ease) infinite alternate; }
@keyframes scrub { from { left: 6%; } to { left: 93%; } }

@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; }
}

/* --------------------------------------------------------------- sections */

.section { padding-block: clamp(56px, 8vw, 104px); border-bottom: 1px solid var(--line); }
.section--flush { padding-top: 0; }
.section__title { font-size: clamp(28px, 4vw, 44px); line-height: 1.12; letter-spacing: -0.01em; margin: 0 0 28px; max-width: 24ch; font-weight: 700; }
.section__intro { color: var(--ink-dim); max-width: 64ch; margin: -8px 0 32px; }
.lead { font-size: clamp(19px, 2vw, 23px); line-height: 1.45; margin: 0; }
.h2 { font-size: 24px; line-height: 1.25; margin: 0 0 16px; font-weight: 700; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.split p { margin-top: 0; }
@media (max-width: 800px) { .split { grid-template-columns: 1fr; gap: 24px; } }

.page-hero { padding-block: clamp(56px, 9vw, 104px) clamp(32px, 5vw, 56px); border-bottom: 1px solid var(--line); }
.page-hero--center { text-align: center; }
.page-hero--center .page-lede { margin-inline: auto; }
.page-title { font-size: clamp(34px, 5.5vw, 60px); line-height: 1.05; margin: 0 0 20px; max-width: 20ch; font-weight: 750; letter-spacing: -0.015em; }
.page-hero--center .page-title { margin-inline: auto; }
.page-lede { font-size: clamp(17px, 1.8vw, 20px); color: var(--ink-dim); max-width: 60ch; margin: 0; }

.triad { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.triad__item { padding: 28px 28px 8px 0; border-right: 1px solid var(--line); }
.triad__item + .triad__item { padding-left: 28px; }
.triad__item:last-child { border-right: 0; }
.triad__item h3 { margin: 0 0 8px; font-size: 18px; }
.triad__item p { color: var(--ink-dim); margin: 0 0 12px; }
.triad__glyph { color: var(--ink) !important; letter-spacing: 0.05em; }
@media (max-width: 800px) {
  .triad { grid-template-columns: 1fr; }
  .triad__item, .triad__item + .triad__item { padding: 24px 0; border-right: 0; border-bottom: 1px solid var(--line); }
}

.facts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; margin: 0 0 28px; border-top: 1px solid var(--line); }
.facts > div { padding: 24px 24px 24px 0; border-bottom: 1px solid var(--line); }
.facts > div:nth-child(odd) { border-right: 1px solid var(--line); }
.facts > div:nth-child(even) { padding-left: 24px; }
.facts dt { font-weight: 650; margin-bottom: 6px; }
.facts dd { margin: 0; color: var(--ink-dim); }
@media (max-width: 800px) {
  .facts { grid-template-columns: 1fr; }
  .facts > div, .facts > div:nth-child(even) { padding: 20px 0; border-right: 0; }
}

.capabilities { list-style: none; padding: 0; margin: 0 0 28px; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.capabilities li { padding: 22px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.capabilities h3 { margin: 0 0 8px; font-size: 16px; }
.capabilities p { margin: 0; color: var(--ink-dim); font-size: 14.5px; }
@media (max-width: 1000px) { .capabilities { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .capabilities { grid-template-columns: 1fr; } }

.platforms { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.platforms > div { padding: 22px 22px 22px 0; border-bottom: 1px solid var(--line); }
.platforms h3 { margin: 0 0 6px; font-size: 18px; }
.platforms p { margin: 0; color: var(--ink-dim); }
@media (max-width: 700px) { .platforms { grid-template-columns: 1fr; } }

.closing { text-align: center; }
.closing .section__title { margin-inline: auto; }
.section--closing { border-bottom: 0; }

.prose-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 48px 64px; }
.prose-grid p { color: var(--ink-dim); }
@media (max-width: 800px) { .prose-grid { grid-template-columns: 1fr; gap: 32px; } }

.plain-list { padding-left: 20px; }
.plain-list li { margin-bottom: 10px; color: var(--ink-dim); }
.plain-list strong { color: var(--ink); }

/* ------------------------------------------------------------- with aside */

.with-aside { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 56px; padding-block: 48px 96px; }
.with-aside > * { min-width: 0; }
.aside { position: sticky; top: 96px; align-self: start; max-height: calc(100vh - 120px); overflow: auto; }
.aside ul { list-style: none; padding: 0; margin: 0; border-left: 1px solid var(--line); }
.aside a { display: block; padding: 5px 0 5px 14px; margin-left: -1px; border-left: 1px solid transparent; color: var(--ink-dim); text-decoration: none; font-size: 14px; line-height: 1.35; }
.aside a:hover { color: var(--ink); border-left-color: var(--playhead); }
@media (max-width: 900px) {
  .with-aside { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .aside { position: static; max-height: none; }
}

.feature-group { padding-bottom: 40px; margin-bottom: 40px; border-bottom: 1px solid var(--line); }
.feature-group:last-child { border-bottom: 0; }
.feature-list { margin: 0; display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line); }
.feature-list > div { padding: 16px 20px 16px 0; border-bottom: 1px solid var(--line); }
.feature-list dt { font-weight: 650; }
.feature-list dd { margin: 4px 0 0; color: var(--ink-dim); font-size: 15px; }
@media (max-width: 700px) { .feature-list { grid-template-columns: 1fr; } }

/* ------------------------------------------------------------------ flow */

.flow { list-style: none; padding: 0; margin: 0; position: relative; }
.flow::before { content: ""; position: absolute; left: 27px; top: 8px; bottom: 8px; width: 1px; background: var(--line-strong); }
.flow__stage { display: grid; grid-template-columns: 56px 1fr; gap: 24px; padding: 0 0 36px; position: relative; }
.flow__index { width: 56px; height: 56px; display: grid; place-items: center; border: 1px solid var(--line-strong); background: var(--void); color: var(--ink); position: relative; }
.flow__stage:last-child .flow__index { border-color: var(--playhead); }
.flow__body h3 { margin: 0 0 6px; font-size: 22px; }
.flow__body p { margin: 0 0 8px; color: var(--ink-dim); max-width: 70ch; }
.flow__kind { margin: 6px 0 4px; color: var(--playhead); }
.flow__detail { color: var(--ink-faint) !important; font-size: 13px; }

/* ----------------------------------------------------------------- tables */

.table-wrap { overflow-x: auto; margin: 0 0 28px; border: 1px solid var(--line); }
table { border-collapse: collapse; width: 100%; font-size: 14.5px; }
th, td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
thead th { font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-dim); font-weight: 600; background: var(--obsidian); }
tbody tr:last-child td, tbody tr:last-child th { border-bottom: 0; }
tbody th { font-weight: 650; }
.spec--dense td { padding: 6px 12px; font-size: 13px; }

.states { margin: 0; border-top: 1px solid var(--line); }
.states > div { display: grid; grid-template-columns: 140px 1fr; gap: 16px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.states dd { margin: 0; color: var(--ink-dim); }
.state { font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em; align-self: start; padding: 3px 8px; justify-self: start; }
.state--held { border: 3px double var(--ink); }
.state--reclaimable { border: 1px dashed var(--ink-dim); }
.state--missing { border: 1px dotted var(--delete); color: var(--delete); }
.state--untracked { border: 1px solid transparent; color: var(--ink-dim); }

/* ------------------------------------------------------------------ prose */

.prose { max-width: 78ch; min-width: 0; }
.prose--wide { max-width: none; }
.prose h1 { font-size: clamp(32px, 4.5vw, 46px); line-height: 1.1; margin: 0 0 24px; letter-spacing: -0.01em; }
.prose h2 { font-size: 26px; margin: 56px 0 14px; padding-top: 20px; border-top: 1px solid var(--line); }
.prose h3 { font-size: 19px; margin: 32px 0 8px; }
.prose h4, .prose h5, .prose h6 { font-size: 16px; margin: 24px 0 8px; }
.prose p, .prose li { color: #cfcfd6; }
.prose code { font-family: var(--mono); font-size: 0.88em; background: var(--slate); border: 1px solid var(--line); padding: 1px 5px; overflow-wrap: anywhere; }
.prose p, .prose li, .prose h2, .prose h3 { overflow-wrap: anywhere; }
.prose ul, .prose ol { padding-left: 22px; }
.prose li { margin-bottom: 6px; }
.prose blockquote { margin: 20px 0; padding: 2px 20px; border-left: 2px solid var(--playhead); color: var(--ink-dim); }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 40px 0; }
.doc__source { margin-top: 56px; font-size: 13px; }

pre.code { background: var(--obsidian); border: 1px solid var(--line); padding: 16px 18px; overflow-x: auto; font-family: var(--mono); font-size: 13px; line-height: 1.55; margin: 0 0 24px; }
pre.code code { background: none; border: 0; padding: 0; font-size: inherit; color: #d8d8de; white-space: pre; }

.doc-index { list-style: none; padding: 0; margin: 40px 0 56px; border-top: 1px solid var(--line); }
.doc-index a { display: grid; grid-template-columns: 260px 1fr; gap: 24px; padding: 20px 0; border-bottom: 1px solid var(--line); text-decoration: none; }
.doc-index a:hover .doc-index__title { color: var(--playhead); }
.doc-index__title { font-weight: 650; font-size: 18px; }
.doc-index__summary { color: var(--ink-dim); }
@media (max-width: 700px) { .doc-index a { grid-template-columns: 1fr; gap: 4px; } }

/* -------------------------------------------------------------------- faq */

.faq { border-top: 1px solid var(--line); margin-bottom: 24px; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary { cursor: pointer; list-style: none; padding: 18px 40px 18px 0; font-weight: 600; font-size: 17px; position: relative; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; position: absolute; right: 4px; top: 16px; font-family: var(--mono); color: var(--ink-dim); font-size: 18px; }
.faq-item[open] summary::after { content: "\2212"; color: var(--playhead); }
.faq-item__body { padding: 0 0 18px; max-width: 72ch; color: #cfcfd6; }
.faq-item__body p:first-child { margin-top: 0; }
.faq-item__body code { font-family: var(--mono); font-size: 0.88em; background: var(--slate); border: 1px solid var(--line); padding: 1px 5px; }
.faq-group { margin-bottom: 40px; }

/* --------------------------------------------------------------- download */

.notice { border: 1px solid var(--modify); padding: 18px 22px; margin: 40px 0; }
.notice .label { color: var(--modify); }
.notice p { margin: 0; color: #d8d8de; }

.download-group { padding: 32px 0; border-bottom: 1px solid var(--line); }
.download-group:last-child { border-bottom: 0; padding-bottom: 96px; }
.artifact { border: 1px solid var(--line-strong); padding: 24px; margin: 18px 0; }
.artifact__head { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.artifact__head h3 { margin: 0; font-size: 20px; }
.artifact__meta { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin: 20px 0; border-top: 1px solid var(--line); }
.artifact__meta > div { padding: 10px 12px 10px 0; border-bottom: 1px solid var(--line); min-width: 0; }
.artifact__meta dt { font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-dim); }
.artifact__meta dd { margin: 2px 0 0; overflow-wrap: anywhere; }
.artifact__sha, .artifact__wide { grid-column: 1 / -1; }
.artifact__sha dd { font-size: 13px; }
.artifact__install ol { margin: 6px 0 0; padding-left: 20px; color: #cfcfd6; }
.artifact__compat { font-size: 14px; margin: 16px 0 0; }
@media (max-width: 800px) { .artifact__meta { grid-template-columns: repeat(2, 1fr); } }

/* ----------------------------------------------------------------- footer */

.site-footer { border-top: 1px solid var(--line); padding: 56px 0 40px; background: var(--obsidian); }
.site-footer__grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 40px; }
.site-footer__brand p { color: var(--ink-dim); font-size: 14px; max-width: 32ch; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin: 0 0 8px; }
.site-footer li a { color: var(--ink-dim); text-decoration: none; font-size: 14px; }
.site-footer li a:hover { color: var(--ink); }
.site-footer__legal { font-size: 13px; margin: 40px 0 0; padding-top: 20px; border-top: 1px solid var(--line); }
.site-footer__legal { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; }
.site-footer__legal p { margin: 0; }
.site-footer__copyright { color: var(--ink); }
@media (max-width: 800px) { .site-footer__grid { grid-template-columns: 1fr 1fr; } .site-footer__brand { grid-column: 1 / -1; } }

/* ========================================================================
   Interactive preview: the application's own panel language.
   ======================================================================== */

.section--preview { background: radial-gradient(1200px 400px at 50% 0%, rgba(255, 75, 40, 0.06), transparent 70%); }
.preview-frame { border: 1px solid var(--line-strong); background: var(--void); font-size: 13px; line-height: 1.45; box-shadow: 0 40px 120px rgba(0, 0, 0, 0.6); }
.preview-noscript { padding: 24px; }
.preview-guide { padding: 40px 0 0; }

.pv { display: grid; grid-template-rows: auto auto 1fr auto; min-height: 560px; }
.pv-bar { display: flex; align-items: center; gap: 12px; padding: 10px 14px; border-bottom: 1px solid var(--line); background: var(--obsidian); flex-wrap: wrap; }
.pv-bar__title { font-weight: 700; letter-spacing: 0.2em; font-size: 12px; }
.pv-demo { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.12em; color: var(--modify); border: 1px solid rgba(226, 177, 72, 0.5); padding: 2px 7px; }
.pv-recording { margin-left: auto; font-family: var(--mono); font-size: 11px; color: var(--ink-dim); display: inline-flex; align-items: center; gap: 6px; }
.pv-recording::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--create); }

.pv-masthead { display: flex; flex-wrap: wrap; gap: 0; border-bottom: 1px solid var(--line); }
.pv-masthead__project { padding: 12px 16px; border-right: 1px solid var(--line); min-width: 200px; }
.pv-masthead__name { font-weight: 700; letter-spacing: 0.1em; font-size: 13px; }
.pv-masthead__path { font-family: var(--mono); color: var(--ink-dim); font-size: 11.5px; }
.pv-cell { padding: 10px 16px; border-right: 1px solid var(--line); min-width: 96px; }
.pv-cell__label { font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-dim); }
.pv-cell__value { font-family: var(--mono); font-size: 14px; }

.pv-tabs { display: flex; border-bottom: 1px solid var(--line); overflow-x: auto; }
.pv-tab { background: none; border: 0; border-right: 1px solid var(--line); color: var(--ink-dim); font: inherit; font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; padding: 11px 16px; cursor: pointer; white-space: nowrap; min-height: 40px; }
.pv-tab:hover { color: var(--ink); }
.pv-tab[aria-selected="true"] { color: var(--ink); box-shadow: inset 0 -2px 0 var(--playhead); background: var(--obsidian); }

.pv-body { display: grid; grid-template-columns: minmax(0, 1fr) 320px; min-height: 420px; }
.pv-main { padding: 16px; min-width: 0; border-right: 1px solid var(--line); }
.pv-inspector { padding: 16px; background: var(--obsidian); min-width: 0; }
@media (max-width: 860px) {
  .pv-body { grid-template-columns: 1fr; }
  .pv-main { border-right: 0; border-bottom: 1px solid var(--line); }
}

.pv-status { display: flex; justify-content: space-between; gap: 12px; padding: 7px 14px; border-top: 1px solid var(--line); font-family: var(--mono); font-size: 11px; color: var(--ink-dim); background: var(--obsidian); flex-wrap: wrap; }

.pv-heading { font-size: 10.5px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-dim); margin: 0 0 10px; font-weight: 600; }
.pv-note { color: var(--ink-dim); font-size: 12.5px; margin: 8px 0 0; }
.pv-kv { display: grid; grid-template-columns: 110px 1fr; gap: 4px 10px; margin: 0 0 14px; }
.pv-kv dt { color: var(--ink-dim); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; }
.pv-kv dd { margin: 0; font-family: var(--mono); font-size: 12px; overflow-wrap: anywhere; }
.pv-empty { color: var(--ink-faint); font-size: 12.5px; }

.pv-btn { background: none; border: 1px solid var(--line-strong); color: var(--ink); font: inherit; font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; padding: 7px 11px; cursor: pointer; min-height: 32px; }
.pv-btn:hover:not([disabled]) { border-color: var(--ink); }
.pv-btn--primary { background: var(--ink); color: var(--void); border-color: var(--ink); }
.pv-btn--primary:hover:not([disabled]) { background: var(--playhead); border-color: var(--playhead); }
.pv-btn[disabled] { opacity: 0.35; cursor: not-allowed; }
.pv-actions { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; }

/* timeline */
.pv-stage { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 10px; margin-bottom: 16px; min-height: 124px; }
.pv-file { border: 1px solid var(--line); background: var(--obsidian); padding: 10px; text-align: left; color: inherit; font: inherit; cursor: pointer; transition: border-color 120ms, opacity 200ms; }
.pv-file:hover, .pv-file[aria-pressed="true"] { border-color: var(--ink-dim); }
.pv-file[aria-pressed="true"] { box-shadow: inset 0 0 0 1px var(--playhead); }
.pv-file__swatch { height: 46px; margin-bottom: 8px; border: 1px solid var(--line); }
.pv-file__name { font-family: var(--mono); font-size: 11.5px; overflow-wrap: anywhere; }
.pv-file__meta { font-family: var(--mono); font-size: 10.5px; color: var(--ink-dim); }

.pv-lanes { border-top: 1px solid var(--line); }
.pv-lane { display: grid; grid-template-columns: 120px 1fr; align-items: center; border-bottom: 1px solid var(--line); min-height: 30px; }
.pv-lane__name { font-family: var(--mono); font-size: 11px; color: var(--ink-dim); padding-right: 8px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pv-lane__track { position: relative; height: 30px; }
.pv-lane__life { position: absolute; top: 14px; height: 2px; background: var(--line-strong); }
.pv-tick { position: absolute; top: 9px; width: 12px; height: 12px; margin-left: -6px; border-radius: 50%; border: 0; padding: 0; cursor: pointer; }
.pv-tick:hover { transform: scale(1.25); }
.pv-tick[aria-pressed="true"] { box-shadow: 0 0 0 2px var(--void), 0 0 0 3px var(--ink); }
.pv-tick--CREATE { background: var(--create); }
.pv-tick--MODIFY { background: var(--modify); }
.pv-tick--DELETE { background: var(--delete); }
.pv-tick--RENAME { background: var(--rename); }
.pv-tick--RESTORE { background: var(--ink); }
.pv-head { position: absolute; top: 0; bottom: 0; width: 2px; background: var(--playhead); pointer-events: none; box-shadow: 0 0 10px rgba(255, 75, 40, 0.6); }
.pv-lanes__tracks { position: relative; }
.pv-scrub { display: grid; grid-template-columns: 120px 1fr; align-items: center; margin-top: 10px; gap: 0; }
.pv-scrub input[type="range"] { width: 100%; accent-color: var(--playhead); }
.pv-scrub__at { font-family: var(--mono); font-size: 11px; color: var(--ink); }
.pv-legend { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 12px; font-size: 11px; color: var(--ink-dim); font-family: var(--mono); }
.pv-legend span::before { content: ""; display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; vertical-align: 0; }
.pv-legend .l-create::before { background: var(--create); }
.pv-legend .l-modify::before { background: var(--modify); }
.pv-legend .l-rename::before { background: var(--rename); }
.pv-legend .l-delete::before { background: var(--delete); }
.pv-legend .l-restore::before { background: var(--ink); }

/* ledger */
.pv-filters { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 12px; }
.pv-chip { background: none; border: 1px solid var(--line); color: var(--ink-dim); font-family: var(--mono); font-size: 11px; padding: 4px 9px; cursor: pointer; min-height: 28px; }
.pv-chip[aria-pressed="true"] { color: var(--ink); border-color: var(--ink-dim); }
.pv-totals { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); margin-bottom: 12px; }
.pv-totals > div { padding: 8px 10px; border-right: 1px solid var(--line); }
.pv-totals > div:last-child { border-right: 0; }
@media (max-width: 560px) { .pv-totals { grid-template-columns: repeat(2, 1fr); } }
.pv-table { width: 100%; font-size: 12px; }
.pv-table th { font-size: 10px; padding: 6px 8px; background: none; }
.pv-table td { padding: 0; font-family: var(--mono); }
.pv-row { display: grid; width: 100%; grid-template-columns: 104px minmax(0, 1fr) 80px 110px; gap: 8px; align-items: center; background: none; border: 0; border-bottom: 1px solid var(--line); color: inherit; font: inherit; font-family: var(--mono); font-size: 12px; text-align: left; padding: 7px 4px; cursor: pointer; }
.pv-row:hover { background: var(--obsidian); }
.pv-row[aria-pressed="true"] { background: var(--raised); }
.pv-row > span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
@media (max-width: 560px) { .pv-row { grid-template-columns: 96px minmax(0, 1fr) 64px; } .pv-row > span:nth-child(4) { display: none; } }
.pv-state { font-size: 10.5px; letter-spacing: 0.06em; padding: 1px 6px; justify-self: start; }
.pv-state--HELD { border: 3px double var(--ink); }
.pv-state--RECLAIMABLE { border: 1px dashed var(--ink-dim); }
.pv-state--MISSING { border: 1px dotted var(--delete); color: var(--delete); }
.pv-state--UNTRACKED { color: var(--ink-dim); }
.pv-state--VERIFIED { border: 3px double var(--create); color: var(--create); }
.pv-state--CORRUPT { border: 1px solid var(--delete); color: var(--delete); }
.pv-state--UNREADABLE { border: 1px dashed var(--modify); color: var(--modify); }
.pv-state--UNVERIFIED { border: 1px solid var(--line-strong); color: var(--ink-dim); }
.pv-holders { list-style: none; padding: 0; margin: 0 0 12px; }
.pv-holders li { border-left: 2px solid var(--line-strong); padding: 4px 0 4px 10px; margin-bottom: 6px; font-size: 12px; }
.pv-holders .mono { color: var(--ink-dim); }

/* panels */
.pv-callout { border: 1px solid var(--line); padding: 10px 12px; margin: 10px 0; font-size: 12.5px; }
.pv-callout--warn { border-color: rgba(226, 177, 72, 0.6); }
.pv-callout--bad { border-color: rgba(255, 95, 86, 0.6); }
.pv-callout--ok { border-color: rgba(111, 211, 164, 0.5); }
.pv-steps { list-style: none; padding: 0; margin: 8px 0; font-family: var(--mono); font-size: 12px; }
.pv-steps li { padding: 3px 0; }
.pv-steps li::before { content: "\2713  "; color: var(--create); }
.pv-select { background: var(--obsidian); color: var(--ink); border: 1px solid var(--line-strong); font: inherit; font-size: 12px; padding: 6px 8px; min-height: 32px; max-width: 100%; }
.pv-field { display: flex; flex-direction: column; gap: 4px; margin-bottom: 10px; }
.pv-field label, .pv-check { font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-dim); }
.pv-check { display: flex; gap: 8px; align-items: center; text-transform: none; letter-spacing: 0; font-size: 12.5px; color: var(--ink); }
.pv-mode { display: grid; gap: 8px; margin: 10px 0; }
.pv-mode label { display: grid; grid-template-columns: 20px 1fr; gap: 6px; border: 1px solid var(--line); padding: 8px 10px; cursor: pointer; }
.pv-mode label[data-disabled="true"] { opacity: 0.45; cursor: not-allowed; }
.pv-mode strong { font-family: var(--mono); font-size: 12px; }
.pv-mode small { display: block; color: var(--ink-dim); font-size: 12px; }
.pv-list { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line); }
.pv-live { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }


.pv-row--static { cursor: default; }
.pv-row--static:hover { background: none; }
.pv-heading--gap { margin-top: 22px; }
.pv-level, .pv-grade { display: inline-block; font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em; padding: 1px 6px; border: 1px solid var(--line-strong); color: var(--ink-dim); }
.pv-level--RECORD { color: var(--ink); border-color: var(--ink-dim); }
.pv-level--MEASUREMENT { color: var(--rename); border-color: rgba(100, 166, 255, 0.5); }
.pv-level--DEDUCTION { color: var(--modify); border-color: rgba(226, 177, 72, 0.5); border-style: dashed; }
.pv-grade--FACT { color: var(--create); border: 3px double var(--create); padding: 0 5px; }
.pv-grade--INFERRED { color: var(--modify); border-color: rgba(226, 177, 72, 0.6); }
.pv-grade--POSSIBLE { color: var(--ink-dim); border-style: dashed; }
.pv-grade--TEMPORAL { color: var(--rename); border-color: rgba(100, 166, 255, 0.5); }
.pv-evidence { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line); }
.pv-evidence li { display: grid; grid-template-columns: 96px 1fr; gap: 8px; padding: 7px 0; border-bottom: 1px solid var(--line); font-size: 12px; align-items: start; }

/* ========================================================================
   Phase 18: homepage chapters, release page, architecture map, 404.
   ======================================================================== */

.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; margin: -1px; }

.site-footer__grid { grid-template-columns: 1.3fr repeat(4, 1fr); gap: 32px; }
@media (max-width: 1000px) { .site-footer__grid { grid-template-columns: repeat(2, 1fr); } .site-footer__brand { grid-column: 1 / -1; } }
@media (max-width: 420px) { .site-footer__grid { grid-template-columns: 1fr; } }
.site-footer li a { display: inline-block; padding: 3px 0; }

@media (max-width: 1080px) and (min-width: 901px) { .site-nav ul { gap: 16px; } .site-nav { gap: 16px; } }

.button__meta { font-family: var(--mono); font-size: 11px; font-weight: 500; opacity: 0.7; margin-left: 8px; }

/* tags shared by the demonstrations */
.state-tag, .grade-tag, .demo-tag { display: inline-block; font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.08em; padding: 2px 7px; line-height: 1.5; white-space: nowrap; border: 1px solid var(--line-strong); color: var(--ink-dim); }
.state-tag--HELD { border: 3px double var(--ink); color: var(--ink); padding: 0 6px; }
.state-tag--RECLAIMABLE { border-style: dashed; border-color: var(--ink-dim); }
.state-tag--MISSING { border-style: dotted; border-color: var(--delete); color: var(--delete); }
.state-tag--UNTRACKED { border-color: transparent; }
.state-tag--VERIFIED { border: 3px double var(--create); color: var(--create); padding: 0 6px; }
.state-tag--CORRUPT { border-color: var(--delete); color: var(--delete); }
.state-tag--UNREADABLE { border-style: dashed; border-color: var(--modify); color: var(--modify); }
.state-tag--UNVERIFIED { color: var(--ink-faint); }
.grade-tag--FACT { border: 3px double var(--create); color: var(--create); padding: 0 6px; }
.grade-tag--INFERRED { border-color: rgba(226, 177, 72, 0.6); color: var(--modify); }
.grade-tag--POSSIBLE { border-style: dashed; }
.grade-tag--TEMPORAL { border-color: rgba(100, 166, 255, 0.5); color: var(--rename); }
.demo-tag { color: var(--modify); border-color: rgba(226, 177, 72, 0.5); font-size: 9.5px; letter-spacing: 0.14em; }

/* ------------------------------------------------------------------ hero */

.hero2 { border-bottom: 1px solid var(--line); overflow: hidden; position: relative; }
.hero2::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, transparent calc(50% - 0.5px), var(--line) calc(50% - 0.5px), var(--line) calc(50% + 0.5px), transparent calc(50% + 0.5px)); opacity: 0.5; pointer-events: none; }
.hero2__grid { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: clamp(32px, 5vw, 72px); align-items: center; padding-block: clamp(48px, 9vw, 112px); }
.hero2__brand { margin: 0 0 22px; font-size: 12px; letter-spacing: 0.32em; color: var(--ink); }
.hero2__brand .dim { letter-spacing: 0.08em; margin-left: 8px; }
.hero2__title { font-size: clamp(40px, 6.4vw, 84px); line-height: 0.98; letter-spacing: -0.025em; font-weight: 750; margin: 0 0 18px; }
.hero2__verbs { margin: 0 0 26px; font-size: clamp(18px, 2vw, 22px); color: var(--ink-dim); display: flex; flex-wrap: wrap; gap: 4px 12px; }
.hero2__verbs span:nth-child(1) { color: var(--ink); }
.hero2__verbs span:nth-child(3) { color: var(--playhead); }
.hero2__lede { color: #cfcfd6; max-width: 52ch; margin: 0; font-size: 16.5px; }
.hero2 .cta-row { align-items: center; }
.hero2__how { margin-left: 6px; font-size: 15px; }
.hero2__facts { list-style: none; padding: 0; margin: 32px 0 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--line); font-size: 13px; color: var(--ink-dim); }
.hero2__facts li { padding: 10px 12px 10px 0; border-bottom: 1px solid var(--line); }
.hero2__facts li::before { content: ""; display: inline-block; width: 5px; height: 5px; background: var(--playhead); margin-right: 10px; vertical-align: 2px; }
.hero2__caption { font-size: 11px; margin: 12px 0 0; }
@media (max-width: 900px) {
  .hero2__grid { grid-template-columns: minmax(0, 1fr); }
  .hero2::before { display: none; }
}

/* the instrument: a small, live replay of the demonstration archive */
.instrument { --inst-name: 118px; border: 1px solid var(--line-strong); background: var(--void); box-shadow: 0 40px 120px rgba(0, 0, 0, 0.55); font-size: 12px; min-width: 0; }
.instrument__fallback { padding: 24px; color: var(--ink-dim); margin: 0; }
.inst__bar { display: flex; align-items: center; gap: 10px; padding: 8px 12px; border-bottom: 1px solid var(--line); background: var(--obsidian); flex-wrap: wrap; }
.inst__title { font-weight: 700; letter-spacing: 0.2em; font-size: 11px; }
.inst__play { margin-left: auto; background: none; border: 1px solid var(--line-strong); color: var(--ink-dim); font: inherit; font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase; padding: 0 10px; min-height: 32px; cursor: pointer; }
.inst__play:hover { color: var(--ink); border-color: var(--ink-dim); }
.inst__stage { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; padding: 12px; min-height: 154px; align-content: start; border-bottom: 1px solid var(--line); }
.inst__file { border: 1px solid var(--line); background: var(--obsidian); padding: 7px; display: grid; gap: 4px; min-width: 0; }
.inst__file.is-new { animation: inst-in 320ms var(--ease); }
.inst__swatch { height: 26px; border: 1px solid var(--line); }
.inst__file-name { font-family: var(--mono); font-size: 10.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.inst__file-v { font-family: var(--mono); font-size: 10px; color: var(--ink-faint); }
.inst__empty { grid-column: 1 / -1; color: var(--ink-faint); font-family: var(--mono); align-self: center; text-align: center; }
@keyframes inst-in { from { opacity: 0.3; transform: translateY(4px); } to { opacity: 1; transform: none; } }
.inst__lanes { position: relative; padding: 6px 0; }
.inst__lane { display: grid; grid-template-columns: var(--inst-name) minmax(0, 1fr); align-items: center; min-height: 22px; }
.inst__name { font-family: var(--mono); font-size: 10.5px; color: var(--ink-faint); padding: 0 8px 0 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.inst__track { position: relative; height: 22px; margin-right: 14px; }
.inst__life { position: absolute; top: 10.5px; height: 1px; background: var(--line-strong); }
.inst__tick { position: absolute; top: 7px; width: 8px; height: 8px; margin-left: -4px; border-radius: 50%; opacity: 0.28; transition: opacity 240ms, transform 240ms; }
.inst__tick.is-past { opacity: 1; }
.inst__tick--CREATE { background: var(--create); }
.inst__tick--MODIFY { background: var(--modify); }
.inst__tick--RENAME { background: var(--rename); }
.inst__tick--DELETE { background: var(--delete); }
.inst__tick--RESTORE { background: var(--ink); }
.inst__head { position: absolute; top: 0; bottom: 0; width: 2px; margin-left: -1px; background: var(--playhead); box-shadow: 0 0 14px rgba(255, 75, 40, 0.6); pointer-events: none; }
.inst__lanes { margin-right: 14px; }
.inst__track { margin-right: 0; }
.inst__readout { padding: 8px 12px; border-top: 1px solid var(--line); background: var(--obsidian); color: var(--ink-dim); font-size: 11px; white-space: pre; overflow: hidden; text-overflow: ellipsis; }
@media (max-width: 480px) {
  .instrument { --inst-name: 92px; }
  .inst__stage { grid-template-columns: repeat(2, minmax(0, 1fr)); min-height: 200px; }
  .inst__readout { white-space: normal; }
}

/* --------------------------------------------------------------- chapters */

.chapter { padding-block: clamp(64px, 9vw, 128px); border-bottom: 1px solid var(--line); }
.chapter__head { margin: 0 0 clamp(32px, 4vw, 52px); max-width: 780px; }
.chapter__index { display: flex; align-items: center; gap: 12px; margin: 0 0 16px; font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--ink-dim); }
.chapter__index span { color: var(--playhead); letter-spacing: 0.04em; }
.chapter__index span::after { content: ""; display: inline-block; width: 28px; height: 1px; background: var(--line-strong); margin-left: 12px; vertical-align: middle; }
.chapter__title { font-size: clamp(28px, 4.2vw, 50px); line-height: 1.08; letter-spacing: -0.02em; margin: 0; font-weight: 720; max-width: 22ch; }
.chapter__intro { color: var(--ink-dim); font-size: clamp(16px, 1.6vw, 18px); max-width: 64ch; margin: 18px 0 0; }

/* 01 problem */
.problem { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: clamp(32px, 6vw, 88px); align-items: start; }
.problem__names { display: flex; flex-direction: column; gap: 10px; font-family: var(--mono); font-size: clamp(13px, 1.5vw, 16px); border-left: 1px solid var(--line-strong); padding-left: 20px; }
.problem__names span { color: var(--ink-faint); text-decoration: line-through; text-decoration-color: rgba(255, 95, 86, 0.45); overflow-wrap: anywhere; }
.problem__names span:last-child { color: var(--ink); text-decoration: none; }
.problem__names span:last-child::after { content: "  ?"; color: var(--playhead); }
.problem__copy p:not(.lead) { color: var(--ink-dim); max-width: 60ch; }
@media (max-width: 800px) { .problem { grid-template-columns: minmax(0, 1fr); } }

/* 02 insight */
.insight { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); gap: clamp(32px, 6vw, 80px); align-items: start; }
.insight__diagram { border: 1px solid var(--line); background: var(--obsidian); padding: clamp(18px, 3vw, 32px); display: grid; gap: 12px; }
.insight__id { font-size: 11px; color: var(--ink-faint); letter-spacing: 0.06em; }
.insight__line { display: flex; flex-wrap: wrap; gap: 0; position: relative; margin-bottom: 14px; }
.insight__node { flex: 1 1 110px; display: grid; gap: 2px; padding: 12px 14px 12px 16px; border-top: 2px solid var(--line-strong); position: relative; min-width: 0; }
.insight__node::before { content: ""; position: absolute; top: -6px; left: 12px; width: 10px; height: 10px; border-radius: 50%; background: var(--ink-dim); }
.insight__node b { font-weight: 600; font-size: 11px; letter-spacing: 0.08em; }
.insight__node i { font-style: normal; font-size: 12px; color: var(--ink-dim); overflow-wrap: anywhere; }
.insight__node--CREATE::before { background: var(--create); }
.insight__node--MODIFY::before { background: var(--modify); }
.insight__node--RENAME::before { background: var(--rename); }
.insight__node--same i { color: var(--create); }
.insight__node--same i::after { content: "  = v1"; color: var(--ink-faint); }
.insight__points { margin: 0; border-top: 1px solid var(--line); }
.insight__points > div { padding: 16px 0; border-bottom: 1px solid var(--line); }
.insight__points dt { font-weight: 650; margin-bottom: 4px; }
.insight__points dd { margin: 0; color: var(--ink-dim); }
@media (max-width: 860px) { .insight { grid-template-columns: minmax(0, 1fr); } }

/* 03 pipeline */
.pipeline { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border-top: 1px solid var(--line-strong); position: relative; }
.pipeline li { padding: 22px 18px 0 0; position: relative; }
.pipeline li::before { content: ""; position: absolute; top: -5px; left: 0; width: 9px; height: 9px; background: var(--void); border: 1px solid var(--ink-dim); border-radius: 50%; }
.pipeline li:last-child::before { background: var(--playhead); border-color: var(--playhead); }
.pipeline span { color: var(--ink-faint); font-size: 11px; }
.pipeline h3 { margin: 4px 0 8px; font-size: 18px; }
.pipeline p { margin: 0; color: var(--ink-dim); font-size: 14.5px; }
@media (max-width: 900px) {
  .pipeline { grid-template-columns: minmax(0, 1fr); border-top: 0; border-left: 1px solid var(--line-strong); margin-left: 4px; }
  .pipeline li { padding: 0 0 26px 24px; }
  .pipeline li::before { top: 6px; left: -5px; }
}

/* 04 evolution */
.evo { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr); gap: 0 32px; }
.evo__steps { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line); grid-column: 1; grid-row: 1 / span 2; }
.evo__step { display: grid; grid-template-columns: 76px minmax(0, 1fr) auto; gap: 2px 14px; padding: 14px 12px 14px 16px; border-bottom: 1px solid var(--line); position: relative; transition: background 200ms, opacity 200ms; }
.evo__step::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 2px; background: transparent; }
.evo__type { font-size: 11px; letter-spacing: 0.06em; }
.evo__step--CREATE .evo__type { color: var(--create); }
.evo__step--MODIFY .evo__type { color: var(--modify); }
.evo__step--RENAME .evo__type { color: var(--rename); }
.evo__step--DELETE .evo__type { color: var(--delete); }
.evo__path { font-size: 13px; overflow-wrap: anywhere; }
.evo__when { font-size: 11px; color: var(--ink-faint); grid-column: 3; grid-row: 1; }
.evo__meta { font-size: 11px; color: var(--ink-dim); grid-column: 2 / span 2; }
.evo.is-live .evo__step { cursor: pointer; opacity: 0.45; }
.evo.is-live .evo__step.is-past { opacity: 0.75; }
.evo.is-live .evo__step.is-current { opacity: 1; background: var(--obsidian); }
.evo.is-live .evo__step.is-current::before { background: var(--playhead); }
.evo__card { border: 1px solid var(--line-strong); background: var(--obsidian); padding: 22px; align-self: start; min-width: 0; }
.evo__now { font-size: clamp(18px, 2.2vw, 24px); margin: 0 0 16px; overflow-wrap: anywhere; }
.evo__versions { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.evo__version { display: grid; gap: 2px; border: 1px solid var(--line); padding: 8px 10px; font-size: 12px; animation: inst-in 300ms var(--ease); }
.evo__version.is-latest { border-color: var(--playhead); }
.evo__note { color: #cfcfd6; margin: 0; font-size: 14.5px; }
.evo__controls { grid-column: 2; display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; align-self: start; }
@media (max-width: 860px) {
  .evo { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .evo__steps, .evo__controls { grid-column: 1; grid-row: auto; }
  .evo__controls { margin-top: 0; }
}
@media (max-width: 480px) { .evo__step { grid-template-columns: 64px minmax(0, 1fr); } .evo__when { grid-column: 2; grid-row: auto; } .evo__meta { grid-column: 1 / -1; } }

/* 05 archaeology */
.arch-demo { border-top: 1px solid var(--line); }
.arch-demo__row { display: grid; grid-template-columns: 110px 220px minmax(0, 1fr); gap: 16px; align-items: center; padding: 16px 0; border-bottom: 1px solid var(--line); }
.arch-demo__rel { font-size: 13px; }
.arch-demo__cand { color: #cfcfd6; overflow-wrap: anywhere; }
.arch-demo__row .grade-tag { justify-self: start; }
.arch-demo__note { font-size: 14px; margin: 16px 0 0; }
@media (max-width: 700px) { .arch-demo__row { grid-template-columns: minmax(0, 1fr); gap: 6px; } }

/* 06 integrity */
.scan__head { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; margin-bottom: 16px; }
.scan__summary { font-size: 12.5px; color: var(--ink-dim); }
.scan__rows { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 32px; border-top: 1px solid var(--line); }
.scan__row { display: grid; grid-template-columns: 112px 104px minmax(0, 1fr); gap: 12px; align-items: center; padding: 8px 0; border-bottom: 1px solid var(--line); position: relative; font-size: 13.5px; }
.scan__state { justify-self: start; }
.scan__digest { font-size: 12px; color: var(--ink-faint); }
.scan__label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: #cfcfd6; }
.scan__row.is-reading::after { content: ""; position: absolute; left: 0; bottom: -1px; height: 1px; width: 100%; background: var(--playhead); transform-origin: left; animation: read 140ms linear; }
@keyframes read { from { transform: scaleX(0); } to { transform: scaleX(1); } }
.scan__row.is-corrupt { background: rgba(255, 95, 86, 0.06); }
.scan__detail { margin-top: 20px; border: 1px solid rgba(255, 95, 86, 0.5); padding: 18px 20px; }
.scan__detail .label { color: var(--delete); }
.scan__detail p:last-child { margin: 12px 0 0; color: #cfcfd6; max-width: 76ch; }
.scan__digests { margin: 0; display: grid; gap: 6px; }
.scan__digests > div { display: grid; grid-template-columns: 150px minmax(0, 1fr); gap: 12px; }
.scan__digests dt { color: var(--ink-dim); font-size: 13px; }
.scan__digests dd { margin: 0; font-size: 12px; overflow-wrap: anywhere; }
.scan__digests > div:last-child dd { color: var(--delete); }
@media (max-width: 900px) { .scan__rows { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 480px) {
  .scan__row { grid-template-columns: 104px minmax(0, 1fr); }
  .scan__digest { display: none; }
  .scan__digests > div { grid-template-columns: minmax(0, 1fr); gap: 0; }
}

/* 07 recovery */
.rec { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 0 40px; }
.rec__rail { list-style: none; padding: 0; margin: 0; border-left: 1px solid var(--line-strong); grid-row: 1 / span 2; align-self: start; }
.rec__rail li { padding: 10px 0 10px 20px; position: relative; color: var(--ink-dim); display: flex; gap: 12px; align-items: baseline; }
.rec__rail li .mono { font-size: 11px; color: var(--ink-faint); }
.rec__rail li::before { content: ""; position: absolute; left: -5px; top: 17px; width: 9px; height: 9px; border-radius: 50%; background: var(--void); border: 1px solid var(--line-strong); transition: background 200ms, border-color 200ms; }
.rec__rail li.is-done { color: var(--ink); }
.rec__rail li.is-done::before { background: var(--create); border-color: var(--create); }
.rec__rail li.is-current { color: var(--ink); font-weight: 650; }
.rec__rail li.is-current::before { background: var(--playhead); border-color: var(--playhead); box-shadow: 0 0 12px rgba(255, 75, 40, 0.6); }
.rec__panel { border: 1px solid var(--line-strong); background: var(--obsidian); padding: 22px; min-height: 250px; min-width: 0; }
.rec__panel > p:not(.label) { color: #cfcfd6; max-width: 70ch; }
.rec__big { font-size: clamp(16px, 2vw, 22px); color: var(--ink) !important; overflow-wrap: anywhere; }
.rec__versions, .rec__steps, .rec__history { list-style: none; padding: 0; margin: 0 0 14px; border-top: 1px solid var(--line); font-size: 12.5px; }
.rec__versions li, .rec__history li { display: grid; grid-template-columns: 40px minmax(0, 1.4fr) 80px minmax(0, 1fr); gap: 10px; padding: 8px 6px; border-bottom: 1px solid var(--line); }
.rec__versions li > span, .rec__history li > span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.rec__versions li.is-chosen { background: var(--raised); box-shadow: inset 2px 0 0 var(--playhead); }
.rec__history li { grid-template-columns: 90px minmax(0, 1fr) 40px; }
.rec__h--RESTORE { box-shadow: inset 2px 0 0 var(--create); }
.rec__plan { margin: 0 0 14px; border-top: 1px solid var(--line); }
.rec__plan > div { display: grid; grid-template-columns: 90px minmax(0, 1fr); gap: 12px; padding: 7px 0; border-bottom: 1px solid var(--line); }
.rec__plan dt { color: var(--ink-dim); font-size: 13px; }
.rec__plan dd { margin: 0; font-size: 12.5px; overflow-wrap: anywhere; }
.rec__steps li { font-family: var(--mono); padding: 6px 0 6px 24px; border-bottom: 1px solid var(--line); position: relative; color: var(--ink-faint); transition: color 200ms; }
.rec__steps li::before { content: ""; position: absolute; left: 4px; top: 12px; width: 8px; height: 8px; border: 1px solid var(--line-strong); border-radius: 50%; }
.rec__steps li.is-done { color: var(--ink); }
.rec__steps li.is-done::before { content: "\2713"; border: 0; top: 5px; left: 3px; width: auto; height: auto; color: var(--create); }
.rec__controls { grid-column: 2; display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
@media (max-width: 860px) {
  .rec { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .rec__rail { grid-row: auto; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border-left: 0; border-top: 1px solid var(--line-strong); }
  .rec__rail li { flex-direction: column; gap: 2px; padding: 16px 4px 0 0; font-size: 12px; line-height: 1.3; }
  .rec__rail li::before { left: 0; top: -5px; }
  .rec__controls { grid-column: 1; margin-top: 0; }
}
@media (max-width: 480px) {
  .rec__rail li { font-size: 0; }
  .rec__rail li .mono { font-size: 11px; }
  .rec__rail li.is-current { font-size: 11px; }
  .rec__versions li { grid-template-columns: 30px minmax(0, 1fr) 64px; }
  .rec__versions li > span:nth-child(4) { display: none; }
}

/* 08 storage */
.ledger__cards { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border: 1px solid var(--line); }
.ledger__card { display: grid; gap: 10px; padding: 22px; border-right: 1px solid var(--line); align-content: start; }
.ledger__card:last-child { border-right: 0; }
.ledger__card .state-tag { justify-self: start; }
.ledger__count { font-size: clamp(36px, 5vw, 56px); line-height: 1; font-weight: 300; letter-spacing: -0.02em; }
.ledger__bytes { font-size: 12px; }
.ledger__card--MISSING .ledger__count { color: var(--delete); }
.ledger__card--UNTRACKED .ledger__count { color: var(--ink-dim); }
.ledger__controls { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.ledger__note { color: #cfcfd6; margin: 14px 0 0; min-height: 3.2em; max-width: 80ch; }
.states-inline { margin: 40px 0 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; }
.states-inline dt { margin-bottom: 8px; }
.states-inline dd { margin: 0; color: var(--ink-dim); font-size: 14.5px; }
@media (max-width: 860px) {
  .ledger__cards, .states-inline { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ledger__card:nth-child(2) { border-right: 0; }
  .ledger__card:nth-child(-n + 2) { border-bottom: 1px solid var(--line); }
}
@media (max-width: 420px) { .states-inline { grid-template-columns: minmax(0, 1fr); } .ledger__card { padding: 16px; } }

/* 09 evidence */
.ev__pick { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border: 1px solid var(--line); margin-bottom: 24px; }
.ev__tab { display: grid; gap: 6px; justify-items: start; text-align: left; background: none; border: 0; border-right: 1px solid var(--line); color: var(--ink-dim); font: inherit; padding: 16px 18px; cursor: pointer; min-width: 0; }
.ev__tab:last-child { border-right: 0; }
.ev__tab .mono { font-size: 12px; }
.ev__tab:hover { color: var(--ink); }
.ev__tab[aria-selected="true"] { background: var(--obsidian); color: var(--ink); box-shadow: inset 0 -2px 0 var(--playhead); }
.ev__cand { font-size: 14px; overflow-wrap: anywhere; }
.ev__cols { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; border-top: 1px solid var(--line); }
.ev__col { padding: 20px 24px 8px 0; min-width: 0; }
.ev__col + .ev__col { padding-left: 24px; border-left: 1px solid var(--line); }
.ev__level { font-size: 12px; letter-spacing: 0.14em; margin: 0 0 6px; }
.ev__col--RECORD .ev__level { color: var(--ink); }
.ev__col--MEASUREMENT .ev__level { color: var(--rename); }
.ev__col--DEDUCTION .ev__level { color: var(--modify); }
.ev__def { color: var(--ink-faint); font-size: 13px; margin: 0 0 16px; }
.ev__item { margin: 0 0 10px; padding: 10px 12px; border: 1px solid var(--line); background: var(--obsidian); font-size: 14px; transition: opacity 300ms var(--ease), transform 300ms var(--ease); overflow-wrap: anywhere; }
.ev__col--DEDUCTION .ev__item { border-style: dashed; border-color: rgba(226, 177, 72, 0.4); }
.ev__item--none { color: var(--ink-faint); background: none; }
.ev__item.is-entering { opacity: 0; transform: translateY(6px); }
@media (max-width: 860px) {
  .ev__pick, .ev__cols { grid-template-columns: minmax(0, 1fr); }
  .ev__tab { border-right: 0; border-bottom: 1px solid var(--line); }
  .ev__tab:last-child { border-bottom: 0; }
  .ev__col, .ev__col + .ev__col { padding: 18px 0 6px; border-left: 0; border-bottom: 1px solid var(--line); }
}

/* 10 local first */
.local { display: grid; grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr); gap: clamp(32px, 6vw, 80px); align-items: start; }
.machine { margin: 0; display: grid; gap: 0; }
.machine__frame { border: 1px solid var(--line-strong); padding: 18px; position: relative; background: var(--obsidian); }
.machine__label { font-size: 10.5px; letter-spacing: 0.2em; color: var(--ink-dim); margin: 0 0 14px; }
.machine__app { border: 1px solid var(--line); background: var(--void); padding: 16px; }
.machine__name { font-weight: 700; letter-spacing: 0.22em; font-size: 13px; margin: 0 0 12px; }
.machine__parts { list-style: none; padding: 0; margin: 0 0 12px; display: flex; flex-wrap: wrap; gap: 6px; font-size: 11px; }
.machine__parts li { border: 1px solid var(--line); padding: 3px 8px; color: var(--ink-dim); }
.machine__store { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; font-size: 11.5px; }
.machine__store span { border: 3px double var(--line-strong); padding: 10px; text-align: center; }
.machine__folders { margin: 12px 0 0; padding: 10px; border: 1px dashed var(--line-strong); text-align: center; font-size: 11.5px; color: var(--ink-dim); }
.machine__wire { height: 48px; position: relative; }
.machine__wire::before { content: ""; position: absolute; left: 50%; top: 0; bottom: 0; border-left: 1px dashed var(--line-strong); }
.machine__cut { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); background: var(--void); color: var(--delete); font-size: 18px; padding: 0 6px; line-height: 1; }
.machine__none { margin: 0; text-align: center; font-size: 11.5px; letter-spacing: 0.08em; color: var(--ink-faint); border: 1px solid var(--line); padding: 10px; text-decoration: line-through; text-decoration-color: rgba(255, 95, 86, 0.45); }
.checks { list-style: none; padding: 0; margin: 24px 0; border-top: 1px solid var(--line); }
.checks li { padding: 12px 0 12px 28px; border-bottom: 1px solid var(--line); position: relative; color: #cfcfd6; }
.checks li::before { content: "\2713"; position: absolute; left: 4px; top: 12px; color: var(--create); font-family: var(--mono); }
.local__caveat { font-size: 14px; border-left: 2px solid var(--modify); padding-left: 14px; }
@media (max-width: 860px) { .local { grid-template-columns: minmax(0, 1fr); } }

/* 11 principles */
.principles { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border-top: 1px solid var(--line); counter-reset: p; }
.principles li { padding: 24px 20px 8px 0; counter-increment: p; min-width: 0; }
.principles li + li { padding-left: 20px; border-left: 1px solid var(--line); }
.principles li::before { content: counter(p, decimal-leading-zero); font-family: var(--mono); font-size: 11px; color: var(--playhead); display: block; margin-bottom: 14px; }
.principles h3 { margin: 0 0 10px; font-size: 18px; line-height: 1.25; }
.principles p { margin: 0; color: var(--ink-dim); font-size: 14.5px; }
@media (max-width: 1000px) {
  .principles { grid-template-columns: minmax(0, 1fr); }
  .principles li, .principles li + li { padding: 18px 0; border-left: 0; border-bottom: 1px solid var(--line); display: grid; grid-template-columns: 40px minmax(0, 1fr); column-gap: 12px; }
  .principles li::before { grid-row: 1 / span 2; margin: 4px 0 0; }
}

/* 13 demo */
.chapter--demo { background: radial-gradient(1200px 420px at 50% 0%, rgba(255, 75, 40, 0.05), transparent 70%); }
.demo__more { margin: 20px 0 0; }

/* 14 release */
.rel { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.rel__platform { padding: 24px 24px 20px 0; min-width: 0; }
.rel__platform + .rel__platform { padding-left: 24px; border-left: 1px solid var(--line); }
.rel__platform h3 { margin: 0 0 12px; font-size: 18px; }
.rel__platform ul { list-style: none; padding: 0; margin: 0 0 12px; }
.rel__platform li { display: flex; justify-content: space-between; gap: 12px; padding: 6px 0; border-bottom: 1px solid var(--line); }
.rel__platform p { margin: 0; font-size: 14px; }
@media (max-width: 860px) {
  .rel { grid-template-columns: minmax(0, 1fr); }
  .rel__platform, .rel__platform + .rel__platform { padding: 20px 0; border-left: 0; border-bottom: 1px solid var(--line); }
}

/* 15 docs */
.doc-tiles { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.doc-tiles a { display: grid; gap: 8px; align-content: start; height: 100%; padding: 22px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); text-decoration: none; font-size: 14.5px; transition: background 160ms; }
.doc-tiles a:hover { background: var(--obsidian); }
.doc-tiles__t { font-weight: 650; font-size: 17px; }
.doc-tiles__t::after { content: " \2192"; color: var(--playhead); }
@media (max-width: 900px) { .doc-tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 480px) { .doc-tiles { grid-template-columns: minmax(0, 1fr); } }

/* 17 closing */
.chapter--closing { border-bottom: 0; }
.closing2 { text-align: center; }
.closing2 .chapter__index { justify-content: center; }
.closing2__title { font-size: clamp(36px, 6vw, 72px); line-height: 1; letter-spacing: -0.025em; margin: 0 0 18px; font-weight: 750; }
.closing2__lede { color: var(--ink-dim); font-size: clamp(17px, 2vw, 21px); margin: 0 auto; max-width: 44ch; }

/* -------------------------------------------------------- release page */

.release-hero { padding-block: clamp(56px, 9vw, 104px) clamp(32px, 5vw, 48px); border-bottom: 1px solid var(--line); }
.release-hero__title { font-size: clamp(38px, 6vw, 68px); line-height: 1; letter-spacing: -0.02em; margin: 0 0 18px; font-weight: 750; }
.release-hero__links { list-style: none; padding: 0; margin: 24px 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.release-hero__links a { display: inline-flex; align-items: center; min-height: 36px; padding: 0 12px; border: 1px solid var(--line); font-family: var(--mono); font-size: 12.5px; text-decoration: none; color: var(--ink-dim); }
.release-hero__links a:hover { color: var(--ink); border-color: var(--ink-dim); }
.release { padding-bottom: 96px; }
.notice2 { border: 1px solid rgba(226, 177, 72, 0.55); border-left-width: 3px; padding: 18px 22px; margin: 40px 0 8px; }
.notice2 .label { color: var(--modify); }
.notice2 p:not(.label) { margin: 0; color: #d8d8de; max-width: 90ch; }
.release__platform { padding: 40px 0 8px; border-bottom: 1px solid var(--line); }
.release__platform:last-child { border-bottom: 0; }
.release__h { font-size: 26px; margin: 0 0 16px; }
.modes { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--line); margin-bottom: 8px; }
.modes > div { padding: 16px 24px 12px 0; }
.modes > div + div { padding-left: 24px; border-left: 1px solid var(--line); }
.modes p:not(.label) { margin: 0; color: #cfcfd6; font-size: 15px; }
@media (max-width: 700px) { .modes { grid-template-columns: minmax(0, 1fr); } .modes > div + div { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); } }
.artifact2 { border: 1px solid var(--line-strong); background: var(--obsidian); padding: clamp(18px, 3vw, 28px); margin: 20px 0; }
.artifact2__head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px 24px; flex-wrap: wrap; }
.artifact2__head h3 { margin: 0; font-size: 22px; }
.artifact2__head .label { margin-bottom: 6px; }
.artifact2__lede { margin: 6px 0 0; color: var(--ink-dim); }
.artifact2__meta { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin: 22px 0 0; border-top: 1px solid var(--line); }
.artifact2__meta > div { padding: 10px 12px 10px 0; border-bottom: 1px solid var(--line); min-width: 0; }
.artifact2__meta dt { font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-dim); }
.artifact2__meta dd { margin: 2px 0 0; overflow-wrap: anywhere; font-size: 14.5px; }
.artifact2__wide, .artifact2__sha { grid-column: 1 / -1; }
.artifact2__sha dd { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.artifact2__sha code { font-size: 12.5px; overflow-wrap: anywhere; word-break: break-all; min-width: 0; }
.copy { background: none; border: 1px solid var(--line-strong); color: var(--ink-dim); font: inherit; font-size: 12px; padding: 0 12px; min-height: 32px; cursor: pointer; }
.copy:hover { color: var(--ink); border-color: var(--ink); }
.artifact2__more { margin-top: 14px; }
.artifact2__more summary { cursor: pointer; color: var(--ink-dim); font-size: 14px; padding: 8px 0; min-height: 32px; }
.artifact2__more summary:hover { color: var(--ink); }
.artifact2__more-body { padding: 4px 0 4px 14px; border-left: 1px solid var(--line); }
.artifact2__more-body h4 { margin: 14px 0 6px; }
.artifact2__more-body ol { margin: 0; padding-left: 20px; color: #cfcfd6; }
.artifact2__more-body p { margin: 0; color: #cfcfd6; }
@media (max-width: 700px) { .artifact2__meta { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* ------------------------------------------------------- architecture map */

.archmap { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr); gap: 32px; align-items: start; }
.archmap__layers { display: grid; gap: 0; border-top: 1px solid var(--line); }
.archmap__layer { display: grid; grid-template-columns: 130px minmax(0, 1fr); gap: 16px; padding: 12px 0; border-bottom: 1px solid var(--line); align-items: center; }
.archmap__layer-name { margin: 0; font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-faint); }
.archmap__nodes { display: flex; flex-wrap: wrap; gap: 8px; }
.archmap__node { flex: 1 1 180px; display: grid; gap: 2px; text-align: left; background: var(--obsidian); border: 1px solid var(--line); color: var(--ink); font: inherit; font-size: 15px; font-weight: 600; padding: 12px 14px; cursor: pointer; min-height: 44px; min-width: 0; transition: border-color 160ms, background 160ms, opacity 160ms; }
.archmap__node .mono { font-size: 11px; font-weight: 400; overflow-wrap: anywhere; }
.archmap__node:hover { border-color: var(--ink-dim); }
.archmap.is-live .archmap__node { opacity: 0.6; }
.archmap.is-live .archmap__node.is-related { opacity: 1; border-color: rgba(100, 166, 255, 0.55); }
.archmap.is-live .archmap__node[aria-pressed="true"] { opacity: 1; border-color: var(--playhead); background: var(--raised); box-shadow: inset 3px 0 0 var(--playhead); }
.archmap__detail { position: sticky; top: 88px; border: 1px solid var(--line-strong); background: var(--obsidian); padding: 22px; }
.archmap__all { margin: 0; }
.archmap__all > div + div { margin-top: 20px; padding-top: 20px; border-top: 1px solid var(--line); }
.archmap.is-live .archmap__all > div + div { margin: 0; padding: 0; border: 0; }
.archmap__all dt { font-weight: 700; font-size: 20px; display: grid; gap: 4px; }
.archmap__all dt .mono { font-size: 12px; font-weight: 400; overflow-wrap: anywhere; }
.archmap__all dd { margin: 12px 0 0; color: #cfcfd6; }
.archmap__links { font-size: 12px; }
@media (max-width: 900px) {
  .archmap { grid-template-columns: minmax(0, 1fr); }
  .archmap__detail { position: static; order: -1; }
  .archmap__layer { grid-template-columns: minmax(0, 1fr); gap: 8px; }
}

/* -------------------------------------------------------------------- 404 */

.nf { padding-block: clamp(64px, 12vw, 140px); min-height: 60vh; }
.nf__track { position: relative; height: 56px; margin: 0 0 40px; max-width: 640px; }
.nf__track::before { content: ""; position: absolute; left: 0; right: 0; top: 50%; border-top: 1px solid var(--line-strong); }
.nf__tick { position: absolute; top: 50%; width: 9px; height: 9px; margin: -4.5px 0 0 -4.5px; border-radius: 50%; background: var(--ink-dim); }
.nf__tick--1 { left: 8%; background: var(--create); }
.nf__tick--2 { left: 30%; background: var(--modify); }
.nf__tick--3 { left: 88%; background: var(--rename); }
.nf__gap { position: absolute; left: 59%; top: 50%; transform: translate(14px, -50%); background: var(--void); padding: 0 12px; color: var(--ink-faint); font-size: 12px; letter-spacing: 0.1em; border: 1px dashed var(--line-strong); line-height: 26px; }
.nf__head { position: absolute; top: 0; bottom: 0; left: 59%; width: 2px; margin-left: -1px; background: var(--playhead); box-shadow: 0 0 16px rgba(255, 75, 40, 0.6); animation: nf-seek 2.4s var(--ease) both; }
@keyframes nf-seek { from { left: 4%; } to { left: 59%; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
  .tl-head { left: 58%; }
  .ev__item.is-entering { opacity: 1; transform: none; }
}

/* larger hit areas without changing the drawing */
.site-nav a:not(.button) { display: inline-block; padding-block: 7px; }
.pv-tick::after { content: ""; position: absolute; inset: -6px; }