/* ============================================================================
   safety.viz docs site — keynote portfolio theme (#21)

   Extracted from the obot.roadmap site theme (the jwildfire.github.io keynote
   look): espresso #271810 · paper #faf6f1 · orange #f97316 accent, with
   Instrument Serif headings, Instrument Sans body, IBM Plex Mono meta.

   Structured for extraction to obot.agent as the shared portfolio stylesheet:

     1. Design tokens        — portable: colors, type, spacing (edit here)
     2. Base elements        — portable: body, headings, links, code, tables
     3. Site chrome          — portable: full-bleed header/footer bands
     4. Shared components    — portable: cards, badges, chips, panels, tabs
     5. safety.viz pages     — site-specific: gallery, evidence, API, demo

   Sections 1–4 carry no safety.viz-specific selectors.
   ============================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Instrument+Sans:ital,wght@0,400..700;1,400..700&family=Instrument+Serif:ital@0;1&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

/* ---- 1. Design tokens ---------------------------------------------------- */

:root {
  /* Surfaces */
  --side-bg: #271810; /* espresso bands */
  --side-ink: #f5ede4;
  --side-soft: #c4a995;
  --paper: #faf6f1;
  --panel: #f5efe7; /* warm inset: code, table heads */
  --card: #ffffff;

  /* Ink */
  --ink: #2a211b;
  --muted: #6b5d52;
  --faint: #a3958a;

  /* Accent */
  --accent: #c2410c; /* links */
  --accent-bright: #f97316; /* borders, hover, highlights */

  /* Rules & status */
  --rule: #ece2d7;
  --good: #166534;
  --good-bg: #dcfce7;
  --good-rule: #bbf7d0;
  --warn: #92400e;
  --warn-bg: #fef3c7;
  --warn-rule: #fde68a;
  --bad: #b91c1c;
  --bad-bg: #fee2e2;
  --bad-rule: #fecaca;

  /* Type */
  --sans: 'Instrument Sans', system-ui, -apple-system, sans-serif;
  --serif: 'Instrument Serif', Georgia, serif;
  --mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  /* Layout */
  --measure: 64rem; /* main column */
  --band-pad: max(calc(50vw - (var(--measure) / 2)), 1.5rem);
  --radius: 14px;
  --radius-small: 8px;
}

/* ---- 2. Base elements ---------------------------------------------------- */

* {
  box-sizing: border-box;
}

html {
  overflow-x: clip;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  font-family: var(--serif);
  font-weight: 400;
  line-height: 1.15;
}

h1 {
  font-size: 2.1rem;
  margin: 1.2rem 0 0.5rem;
}

h2 {
  font-size: 1.5rem;
  margin: 2.2rem 0 0.75rem;
}

h3 {
  font-size: 1.2rem;
  margin: 1.5rem 0 0.5rem;
}

a {
  color: var(--accent);
}

a:hover {
  color: var(--accent-bright);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

code {
  font-family: var(--mono);
  font-size: 0.86em;
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 0.1em 0.35em;
}

pre {
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: var(--radius-small);
  padding: 1rem;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.86rem;
}

pre code {
  background: none;
  border: none;
  padding: 0;
}

table {
  border-collapse: collapse;
  width: 100%;
  margin: 1rem 0;
  font-size: 0.92rem;
  background: var(--card);
}

th,
td {
  border: 1px solid var(--rule);
  padding: 0.45rem 0.6rem;
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--panel);
  font-family: var(--mono);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

blockquote {
  border-left: 4px solid var(--accent-bright);
  margin: 1rem 0;
  padding: 0.25rem 1rem;
  color: var(--muted);
}

hr {
  border: 0;
  border-top: 1px solid var(--rule);
}

/* Wide tables scroll inside their own container instead of the page. */
.table-scroll {
  overflow-x: auto;
}

.table-scroll > table {
  min-width: 40rem;
}

/* ---- 3. Site chrome: espresso bands -------------------------------------- */

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  padding: 0.9rem var(--band-pad) 1rem;
  background: var(--side-bg);
  border-top: 4px solid var(--accent-bright);
}

.site-name {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  font-family: var(--serif);
  font-size: 1.35rem;
  color: var(--side-ink);
  text-decoration: none;
}

.site-name:hover {
  color: var(--side-ink);
  text-decoration: none;
}

.site-version {
  font: 500 0.72rem/1.5 var(--mono);
  color: var(--side-soft);
  border: 1px solid rgba(196, 169, 149, 0.4);
  border-radius: 999px;
  padding: 0.05rem 0.6rem;
  text-decoration: none;
}

a.site-version:hover {
  color: var(--accent-bright);
  border-color: var(--accent-bright);
  text-decoration: none;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.1rem;
}

.site-nav a {
  text-decoration: none;
  font-family: var(--mono);
  font-size: 0.84rem;
  color: var(--side-soft);
}

.site-nav a:hover {
  color: var(--accent-bright);
  text-decoration: none;
}

.site-nav a.current {
  color: var(--accent-bright);
  border-bottom: 2px solid var(--accent-bright);
  padding-bottom: 0.1rem;
}

.site-footer {
  margin-top: 3.5rem;
  padding: 1.4rem var(--band-pad) 2rem;
  background: var(--side-bg);
  color: var(--side-soft);
  font-family: var(--mono);
  font-size: 0.8rem;
}

.site-footer p {
  margin: 0.35rem 0;
}

.site-footer a {
  color: var(--side-ink);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--accent-bright);
}

.site-main {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 1rem 1.5rem 3rem;
}

/* ---- 4. Shared components ------------------------------------------------ */

.tagline {
  color: var(--muted);
  font-size: 1.08rem;
  margin: 0 0 1rem;
}

.lead {
  max-width: 46rem;
}

/* Cards */

.card {
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--card);
  transition:
    box-shadow 140ms ease,
    transform 140ms ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(39, 24, 16, 0.12);
}

/* Badges (renderer status) */

.badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: 999px;
  padding: 0.1rem 0.6rem;
  border: 1px solid var(--rule);
  background: var(--panel);
  color: var(--muted);
  white-space: nowrap;
}

.badge-available {
  color: var(--good);
  background: var(--good-bg);
  border-color: var(--good-rule);
}

.badge-in-migration {
  color: var(--warn);
  background: var(--warn-bg);
  border-color: var(--warn-rule);
}

/* Status chips (test results) */

.chip {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: 999px;
  padding: 0.05rem 0.55rem;
  border: 1px solid var(--rule);
  white-space: nowrap;
}

.status-pass {
  color: var(--good);
  background: var(--good-bg);
  border-color: var(--good-rule);
}

.status-fail {
  color: var(--bad);
  background: var(--bad-bg);
  border-color: var(--bad-rule);
}

.status-none {
  color: var(--muted);
  background: var(--panel);
}

a.chip-link {
  text-decoration: none;
}

/* Fact panel (key/value summary grid) */

.facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
  gap: 0.9rem 1.4rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--card);
  padding: 1rem 1.2rem;
  margin: 1.25rem 0;
}

.fact {
  margin: 0;
}

.fact dt {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 0.15rem;
}

.fact dd {
  margin: 0;
  font-size: 0.95rem;
}

.fact dd .sub {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
}

/* Page tabs (renderer sub-pages) */

.page-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0.75rem 0 1.25rem;
  border-bottom: 1px solid var(--rule);
}

.page-tabs a {
  font-family: var(--mono);
  font-size: 0.82rem;
  text-decoration: none;
  color: var(--muted);
  padding: 0.3rem 0.75rem 0.35rem;
  border: 1px solid transparent;
  border-bottom: none;
  border-radius: var(--radius-small) var(--radius-small) 0 0;
}

.page-tabs a:hover {
  color: var(--accent-bright);
  text-decoration: none;
}

.page-tabs a.current {
  color: var(--ink);
  background: var(--card);
  border-color: var(--rule);
  position: relative;
  top: 1px;
  border-top: 2px solid var(--accent-bright);
}

/* ---- 5. safety.viz pages ------------------------------------------------- */

/* Homepage gallery — gallery-first layout (#29): the intro is one tagline,
   the cards are the page, and the queue is a single mono strip. */

.tagline.home-intro {
  font-size: 1.2rem;
  max-width: 46rem;
  margin: 0 0 1.6rem;
}

.queue-strip {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--muted);
  border-top: 1px solid var(--rule);
  margin-top: 2.2rem;
  padding-top: 1.1rem;
}

.gallery-count {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.8rem;
}

.gallery {
  list-style: none;
  margin: 1.1rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(19rem, 1fr));
  gap: 1.1rem;
}

.gallery.gallery-lead {
  gap: 1.4rem;
}

.gallery.gallery-lead .card-thumb img {
  height: 15rem;
}

.card {
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.card-thumb {
  display: block;
  border-bottom: 1px solid var(--rule);
  background: var(--card);
}

.card-thumb img {
  display: block;
  width: 100%;
  height: 12rem;
  object-fit: cover;
  object-position: top left;
}

.card-body {
  padding: 0.85rem 1.1rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.card-body h3 {
  font-family: var(--serif);
  font-size: 1.25rem;
  margin: 0;
}

.card-body h3 a {
  text-decoration: none;
  color: var(--ink);
}

.card-body h3 a:hover {
  color: var(--accent);
}

.card-body p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--muted);
}

.card-body .badge {
  align-self: flex-start;
}

.card-links {
  font-family: var(--mono);
  font-size: 0.8rem;
  margin-top: 0.25rem;
}

/* Evidence + API tables */

table.evidence,
table.api {
  font-size: 0.9rem;
  margin: 0.75rem 0 1.25rem;
}

.section-summary {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0.25rem 0 0.5rem;
}

ul.tests {
  list-style: none;
  margin: 0;
  padding: 0;
}

ul.tests li {
  margin: 0.3rem 0;
}

.test-file {
  margin: 0 0 0.25rem;
  color: var(--muted);
}

.screenshots {
  margin-top: 0.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.screenshots img.screenshot {
  display: block;
  height: 6.5rem;
  width: auto;
  max-width: 100%;
  border: 1px solid var(--rule);
  border-radius: 6px;
  background: var(--card);
}

.screenshots a:hover img.screenshot {
  border-color: var(--accent-bright);
}

/* Visual evidence gallery */

.evidence-gallery {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr));
  gap: 1rem;
}

.evidence-gallery figure {
  margin: 0;
  border: 1px solid var(--rule);
  border-radius: var(--radius-small);
  background: var(--card);
  overflow: hidden;
}

.evidence-gallery a {
  display: block;
}

.evidence-gallery img {
  display: block;
  width: 100%;
  height: 11rem;
  object-fit: cover;
  object-position: top left;
}

.evidence-gallery figcaption {
  padding: 0.5rem 0.75rem 0.6rem;
  font-size: 0.82rem;
  color: var(--muted);
  border-top: 1px solid var(--rule);
}

.routing {
  font-size: 0.95rem;
}

.reproduce {
  margin-top: 2rem;
}

/* API page: sidebar TOC + body */

.api-layout {
  display: grid;
  grid-template-columns: 13rem minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
}

.api-toc {
  position: sticky;
  top: 1rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--card);
  padding: 0.9rem 1rem 1rem;
  font-size: 0.88rem;
}

.api-toc h2 {
  margin: 0 0 0.5rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.api-toc ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.api-toc li {
  margin: 0.25rem 0;
}

.api-toc ul ul {
  margin-left: 0.85rem;
  border-left: 1px solid var(--rule);
  padding-left: 0.6rem;
}

.api-toc a {
  text-decoration: none;
}

.api-toc code {
  background: none;
  border: none;
  padding: 0;
}

@media (max-width: 52rem) {
  .api-layout {
    grid-template-columns: 1fr;
  }

  .api-toc {
    position: static;
  }
}

.returns {
  margin: 0.35rem 0 1rem;
}

/* About + architecture pages */

.renderer-credits td:first-child {
  white-space: nowrap;
}

ol.pipeline {
  list-style: none;
  counter-reset: step;
  margin: 1rem 0 1rem 0.9rem;
  padding: 0;
}

ol.pipeline li {
  counter-increment: step;
  position: relative;
  margin: 0;
  padding: 0.55rem 0 0.55rem 1.7rem;
  border-left: 2px solid var(--rule);
}

ol.pipeline li::before {
  content: counter(step);
  position: absolute;
  left: -0.95rem;
  top: 0.65rem;
  width: 1.8rem;
  height: 1.8rem;
  border-radius: 50%;
  background: var(--side-bg);
  color: var(--side-ink);
  font-family: var(--mono);
  font-size: 0.78rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--accent-bright);
}

ol.pipeline strong {
  font-family: var(--mono);
  font-size: 0.85rem;
  letter-spacing: 0.02em;
}

/* Demo page: the module brings its own embedded styles; give it room. */

.site-main:has(.demo-page) {
  max-width: 85rem;
}

.demo-tips {
  color: var(--muted);
  font-size: 0.92rem;
  margin: 0.5rem 0 0;
  padding-left: 1.2rem;
}

#container {
  margin-top: 1.25rem;
}

/* Clinical guide (v1.2): the reviewer's guide page (docs/guides/<module>.md). */
.guide-caution {
  border-left: 4px solid var(--warn-rule);
  background: var(--warn-bg);
  color: var(--warn);
  padding: 0.7rem 0.95rem;
  margin: 0 0 1.6rem;
  border-radius: 0 4px 4px 0;
  font-size: 0.95rem;
}
.guide-body h2 {
  margin-top: 2rem;
}
.guide-body h3 {
  margin-top: 1.4rem;
}
.guide-body ul,
.guide-body ol {
  padding-left: 1.4rem;
}
.guide-body li {
  margin: 0.25rem 0;
}

/* Ported workflow diagrams and reference tables (#52 full port). Figures are
   framed as light cards with a muted caption; guide tables size to content
   rather than the wide-table 40rem minimum, scrolling only when they must. */
.guide-figure {
  margin: 1.75rem 0;
  padding: 0.75rem;
  border: 1px solid var(--rule);
  border-radius: 6px;
  background: var(--card);
  text-align: center;
}
.guide-figure img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
  border-radius: 3px;
}
.guide-figure figcaption {
  margin-top: 0.65rem;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.45;
}
.guide-body .table-scroll > table.guide-table {
  min-width: 0;
}
.guide-table td {
  font-size: 0.92rem;
}

/* Sticky sidebar TOC beside the guide body (long, step-based guide). Mirrors
   the API page's .api-toc, but the TOC scrolls within its own sticky column
   since the step list is long, and collapses above the body on narrow screens. */
.guide-layout {
  display: grid;
  grid-template-columns: 15rem minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
}
.guide-toc {
  position: sticky;
  top: 1rem;
  max-height: calc(100vh - 2rem);
  overflow-y: auto;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--card);
  padding: 0.9rem 1rem 1rem;
  font-size: 0.85rem;
}
.guide-toc h2 {
  margin: 0 0 0.5rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.guide-toc ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.guide-toc > ul > li {
  margin: 0.4rem 0;
}
.guide-toc > ul > li > a {
  font-weight: 600;
}
.guide-toc li {
  margin: 0.25rem 0;
}
.guide-toc ul ul {
  margin: 0.2rem 0 0.4rem 0.7rem;
  border-left: 1px solid var(--rule);
  padding-left: 0.6rem;
}
.guide-toc a {
  display: inline-block;
  line-height: 1.3;
  text-decoration: none;
}
@media (max-width: 60rem) {
  .guide-layout {
    grid-template-columns: 1fr;
  }
  .guide-toc {
    position: static;
    max-height: 45vh;
    margin-bottom: 1.5rem;
  }
}
/* Requirement-matrix link in the Test evidence area (replaces the former tab). */
.matrix-link {
  margin: -0.4rem 0 1.4rem;
  font-size: 0.95rem;
}