/* © Dudoxx UG
   Manuals hub — D-016 Logo Signal. Every colour and shadow is a var() of css/tokens.css (generated from the brand token
   build; light on :root, dark on html.dark). Depth = elevation shadow + surface tint, never a container border.
   Fonts are self-hosted latin subsets (assets/fonts/, OFL). */

@font-face {
  font-family: 'Urbanist';
  font-style: normal;
  font-weight: 500 800;
  font-display: swap;
  src: url('../assets/fonts/urbanist-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('../assets/fonts/inter-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2212, U+FB01-FB02;
}
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 400 600;
  font-display: swap;
  src: url('../assets/fonts/jetbrains-mono-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  --bar-row-h: 3.75rem;
  --crumbs-h: 2.25rem;
  --bar-h: calc(var(--bar-row-h) + var(--crumbs-h));
  --page-max: 80rem;
  --gutter: clamp(1rem, 0.5rem + 2.5vw, 2.5rem);
  --radius-sm: 0.375rem;
  --radius: 0.625rem;
  --radius-lg: 1rem;
  --ease: var(--token-ease-standard);
  --t-fast: var(--token-duration-fast);
  --t-base: var(--token-duration-base);
  --ink-scrim: color-mix(in oklch, var(--token-color-fg) 45%, transparent);
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }

html, body { overscroll-behavior: none; }
html {
  background: var(--token-color-bg);
  scroll-padding-top: calc(var(--bar-h) + var(--token-spacing-md));
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}
body {
  margin: 0;
  padding-top: var(--bar-h);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--token-color-bg);
  color: var(--token-color-fg);
  font-family: var(--token-font-body);
  font-size: 1rem;
  line-height: 1.55;
  font-feature-settings: 'cv11', 'ss01';
  -webkit-font-smoothing: antialiased;
}
[id] { scroll-margin-top: calc(var(--bar-h) + var(--token-spacing-md)); }

img { display: block; max-width: 100%; height: auto; }
a { color: var(--token-color-link); text-underline-offset: 0.18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
button { font: inherit; color: inherit; }
h1, h2, h3 { font-family: var(--token-font-display); font-weight: 700; letter-spacing: -0.02em; margin: 0; }
p { margin: 0; }
.mono { font-family: var(--token-font-mono); font-variant-numeric: tabular-nums; font-size: 0.875em; }

:focus-visible {
  outline: 2px solid var(--token-color-link);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}
main:focus { outline: none; }

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

.skip {
  position: fixed; left: var(--token-spacing-md); top: var(--token-spacing-sm); z-index: 60;
  padding: var(--token-spacing-sm) var(--token-spacing-md);
  background: var(--token-color-primary); color: var(--token-color-primary-foreground);
  border-radius: var(--radius); font-weight: 600; text-decoration: none;
  transform: translateY(-200%);
}
.skip:focus { transform: none; }

/* ---------- icons (Lucide, 2px stroke; box = text line-height) ---------- */
.ico { display: inline-flex; flex: none; width: 1.25em; height: 1.25em; }
.ico svg { width: 100%; height: 100%; }

/* ---------- fixed, opaque header ---------- */
.bar {
  position: fixed; inset: 0 0 auto 0; z-index: 40;
  background: var(--token-color-paper);
  transition: box-shadow var(--t-base) var(--ease);
}
.bar.is-scrolled { box-shadow: var(--token-shadow-elev-2); }
.bar-row, .crumbs ol, .shell, .foot-row {
  width: 100%; max-width: var(--page-max); margin: 0 auto; padding: 0 var(--gutter);
}
.bar-row { height: var(--bar-row-h); display: flex; align-items: center; justify-content: space-between; gap: var(--token-spacing-md); }
.bar-brand { display: inline-flex; align-items: center; gap: 0.6rem; text-decoration: none; border-radius: var(--radius-sm); }
.bar-mark { width: 2.1rem; height: auto; }
.bar-word { width: 7.25rem; height: auto; }
.bar-tools { display: flex; align-items: center; gap: var(--token-spacing-sm); }

/* Host header (only when ddx-web serves the hub at /manuals/): tenant identity, Home link, Dashboard button. */
.bar.has-tenant .bar-mark, .bar.has-tenant .bar-word { display: none; }
.bar-tenant { display: inline-flex; align-items: center; gap: 0.5rem; min-width: 0; color: var(--token-color-fg); }
.bar-tenant[hidden] { display: none; }
.tenant-logo { max-height: 28px; width: auto; max-width: 9rem; object-fit: contain; }
.tenant-logo[hidden] { display: none; }
.tenant-name { font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 14rem; }
.tenant-hub { color: var(--token-color-fg-secondary); font-weight: 600; white-space: nowrap; }
.tenant-by {
  display: inline-flex; align-items: center; gap: 0.25rem; white-space: nowrap;
  font-size: 0.75rem; color: var(--token-color-fg-secondary);
}
.tenant-by-mark { width: 0.9rem; height: auto; }
.host-home {
  display: inline-flex; align-items: center; gap: 0.375rem; min-height: 2.5rem; padding: 0 0.75rem;
  border-radius: 999px; color: var(--token-color-fg-secondary); font-size: 0.875rem; font-weight: 600; text-decoration: none;
  transition: background-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}
.host-home:hover { background: var(--token-color-bg-recessed); color: var(--token-color-fg); }
.host-home[hidden], #host-dashboard[hidden] { display: none; }
.btn-sm { min-height: 2.5rem; padding: 0 0.875rem; font-size: 0.875rem; }

.langs {
  display: inline-flex; align-items: center; gap: 0.125rem; padding: 0.1875rem;
  background: var(--token-color-bg-recessed); border-radius: 999px;
}
.langs-ico { color: var(--token-color-fg-secondary); margin: 0 0.25rem 0 0.4rem; }
.lang-btn {
  min-height: 2rem; min-width: 2.5rem; padding: 0 0.75rem; border: 0; border-radius: 999px; cursor: pointer;
  background: transparent; color: var(--token-color-fg-secondary); font-size: 0.875rem; font-weight: 600;
  transition: background-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}
.lang-btn:hover { color: var(--token-color-fg); }
.lang-btn[aria-pressed="true"] { background: var(--token-color-paper); color: var(--token-color-fg); box-shadow: var(--token-shadow-elev-1); }
.lang-short { display: none; }

.icon-btn {
  display: inline-flex; align-items: center; justify-content: center; width: 2.5rem; height: 2.5rem;
  border: 0; border-radius: 999px; cursor: pointer; background: transparent; color: var(--token-color-fg-secondary);
  transition: background-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}
.icon-btn:hover { background: var(--token-color-bg-recessed); color: var(--token-color-fg); }

.crumbs { height: var(--crumbs-h); background: var(--token-color-paper); }
.crumbs ol {
  height: 100%; list-style: none; display: flex; align-items: center; gap: 0.375rem;
  font-size: 0.8125rem; color: var(--token-color-fg-secondary); white-space: nowrap; overflow: hidden;
}
.crumbs li { display: inline-flex; align-items: center; gap: 0.375rem; min-width: 0; }
.crumbs li + li::before { content: '›'; color: var(--token-color-fg-tertiary); }
.crumbs a { color: var(--token-color-fg-secondary); text-decoration: none; overflow: hidden; text-overflow: ellipsis; }
.crumbs a:hover { color: var(--token-color-fg); text-decoration: underline; }
.crumbs a[aria-current] { color: var(--token-color-fg); font-weight: 600; }

/* ---------- page shell: sticky ToC + content ---------- */
.shell {
  flex: 1;
  display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--token-spacing-xl);
  padding-top: var(--token-spacing-xl); padding-bottom: var(--token-spacing-xxl);
}
/* single column: the hero leads, the ToC follows the manuals ("/" still jumps to its filter) */
@media (max-width: 63.999rem) { .toc { order: 2; } }
@media (min-width: 64rem) {
  .shell { grid-template-columns: 17.5rem minmax(0, 1fr); gap: 3.5rem; }
  .toc { position: sticky; top: calc(var(--bar-h) + var(--token-spacing-lg)); align-self: start; }
  .toc-inner { max-height: calc(100dvh - var(--bar-h) - 3rem); overflow-y: auto; overscroll-behavior: none; }
}

/* ---------- ToC ---------- */
.toc-inner { padding: 0.125rem 0.25rem 0.25rem 0.125rem; scrollbar-width: thin; }
.filter { margin-bottom: var(--token-spacing-lg); }
.filter-label { display: block; font-size: 0.8125rem; font-weight: 600; color: var(--token-color-fg-secondary); margin-bottom: 0.375rem; }
.filter-field {
  display: flex; align-items: center; gap: 0.5rem; padding: 0 0.375rem 0 0.75rem; min-height: 2.75rem;
  background: var(--token-color-paper); border-radius: var(--radius); box-shadow: var(--token-inset-shadow-1), var(--token-shadow-elev-1);
  color: var(--token-color-fg-secondary);
}
.filter-field:focus-within { outline: 2px solid var(--token-color-link); outline-offset: 2px; }
.filter-field input {
  flex: 1; min-width: 0; border: 0; background: transparent; color: var(--token-color-fg);
  font: inherit; font-size: 0.9375rem; padding: 0.5rem 0;
}
.filter-field input:focus { outline: none; }
.filter-field input::-webkit-search-cancel-button { display: none; }
.filter-clear { display: inline-flex; align-items: center; justify-content: center; width: 2rem; height: 2rem; border: 0; border-radius: 999px; background: transparent; color: var(--token-color-fg-secondary); cursor: pointer; }
.filter-clear:hover { background: var(--token-color-bg-recessed); color: var(--token-color-fg); }
.filter-hint { margin-top: 0.375rem; font-size: 0.75rem; color: var(--token-color-fg-secondary); }

kbd {
  display: inline-block; min-width: 1.5em; padding: 0.0625rem 0.375rem; text-align: center;
  font-family: var(--token-font-mono); font-size: 0.75rem; line-height: 1.5; color: var(--token-color-fg);
  background: var(--token-color-bg-recessed); border-radius: var(--radius-sm); box-shadow: var(--token-inset-shadow-1);
}

.toc-title { display: flex; align-items: center; gap: 0.5rem; font-size: 0.8125rem; font-family: var(--token-font-body); font-weight: 600; letter-spacing: 0; color: var(--token-color-fg-secondary); margin-bottom: 0.5rem; }
.toc-list, .toc-parts, .toc-chapters { list-style: none; margin: 0; padding: 0; }
.toc-manual + .toc-manual { margin-top: var(--token-spacing-md); }
.toc-link {
  display: flex; align-items: baseline; gap: 0.625rem; padding: 0.5rem 0.625rem; border-radius: var(--radius);
  color: var(--token-color-fg); text-decoration: none; font-weight: 600; font-size: 0.9375rem; line-height: 1.3;
  transition: background-color var(--t-fast) var(--ease);
}
.toc-link:hover { background: var(--token-color-bg-recessed); }
.toc-link[aria-current] { background: var(--token-color-accent-soft); }
.toc-num { font-family: var(--token-font-mono); font-size: 0.75rem; color: var(--token-color-fg-secondary); font-weight: 500; }
.toc-link[aria-current] .toc-num { color: var(--token-color-link); }
.toc-parts { margin: 0.25rem 0 0 1.5rem; }
.toc-parts a, .toc-chapters a {
  display: block; padding: 0.25rem 0.625rem; border-radius: var(--radius-sm); font-size: 0.875rem; line-height: 1.35;
  color: var(--token-color-fg-secondary); text-decoration: none;
}
.toc-parts a:hover, .toc-chapters a:hover { color: var(--token-color-fg); background: var(--token-color-bg-recessed); }
.toc-more { margin: 0.25rem 0 0 1.5rem; }
.toc-more summary {
  display: inline-flex; align-items: center; gap: 0.25rem; padding: 0.25rem 0.625rem; border-radius: var(--radius-sm);
  font-size: 0.8125rem; font-weight: 600; color: var(--token-color-link); cursor: pointer; list-style: none;
}
.toc-more summary::-webkit-details-marker { display: none; }
.toc-more summary .ico { width: 1rem; height: 1rem; transition: transform var(--t-fast) var(--ease); }
.toc-more[open] summary .ico { transform: rotate(90deg); }
.toc-more summary:hover { background: var(--token-color-bg-recessed); }
.toc-chapters { margin-top: 0.125rem; }
.toc-chapters .is-part { margin-top: 0.375rem; }
.toc-chapters .is-part a { color: var(--token-color-fg); font-weight: 600; }
.toc-chapters .in-part a { padding-left: 1.25rem; }
.toc-chapters mark, .topic mark { background: var(--token-color-signal-soft); color: inherit; border-radius: 0.125rem; }
.toc-empty { font-size: 0.875rem; color: var(--token-color-fg-secondary); padding: 0.5rem 0.625rem; }

/* ---------- hero ---------- */
.hero {
  display: grid; gap: var(--token-spacing-xl); align-items: center; grid-template-columns: minmax(0, 1fr);
  padding-bottom: var(--token-spacing-xxl);
}
@media (min-width: 80rem) { .hero { grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); } }
.eyebrow {
  display: inline-flex; align-items: center; gap: 0.5rem; margin-bottom: var(--token-spacing-md);
  font-size: 0.875rem; font-weight: 600; color: var(--token-color-fg-secondary);
}
.eyebrow::before { content: ''; width: 0.5rem; height: 0.5rem; border-radius: 999px; background: var(--token-color-signal); }
.hero h1 { font-size: clamp(2rem, 1.35rem + 2.4vw, 3.25rem); line-height: 1.08; max-width: 18ch; text-wrap: balance; }
.lead { margin-top: var(--token-spacing-lg); max-width: 60ch; font-size: 1.125rem; line-height: 1.6; color: var(--token-color-fg-secondary); }
.quick { list-style: none; margin: var(--token-spacing-xl) 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.625rem; }
.hint { margin-top: var(--token-spacing-md); font-size: 0.875rem; color: var(--token-color-fg-secondary); }

.btn, .chip-action {
  display: inline-flex; align-items: center; gap: 0.5rem; min-height: 2.75rem; padding: 0 1.125rem;
  border-radius: var(--radius); font-weight: 600; font-size: 0.9375rem; text-decoration: none; cursor: pointer;
  transition: box-shadow var(--t-fast) var(--ease), background-color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}
.btn-primary { background: var(--token-color-primary); color: var(--token-color-primary-foreground); box-shadow: var(--token-shadow-elev-1); }
.btn-primary:hover { box-shadow: var(--token-shadow-elev-2); text-decoration: none; }
.btn-primary:active { transform: translateY(1px); }
.chip-action { background: var(--token-color-paper); color: var(--token-color-fg); box-shadow: var(--token-shadow-elev-1); }
.chip-action:hover { box-shadow: var(--token-shadow-elev-2); text-decoration: none; }
.chip-action kbd { margin-left: 0.125rem; }

.poster {
  position: relative; display: block; overflow: hidden; border-radius: var(--radius-lg);
  background: var(--token-color-paper); box-shadow: var(--token-shadow-elev-3); aspect-ratio: 16 / 9;
}
.poster-img { width: 100%; height: 100%; object-fit: cover; }
.poster-play {
  position: absolute; left: var(--token-spacing-lg); bottom: var(--token-spacing-lg);
  display: inline-flex; align-items: center; justify-content: center; width: 3.5rem; height: 3.5rem; border-radius: 999px;
  background: var(--token-color-primary); color: var(--token-color-primary-foreground); box-shadow: var(--token-shadow-elev-3);
  transition: transform var(--t-base) var(--ease);
}
.poster:hover .poster-play { transform: scale(1.06); }
.poster-play .ico { width: 1.5rem; height: 1.5rem; margin-left: 0.15rem; }

/* ---------- manuals ---------- */
.section-title { font-size: clamp(1.5rem, 1.2rem + 1vw, 2rem); line-height: 1.15; }
.section-lead { margin-top: 0.5rem; max-width: 65ch; color: var(--token-color-fg-secondary); }
.empty { margin-top: var(--token-spacing-lg); padding: var(--token-spacing-md) var(--token-spacing-lg); border-radius: var(--radius); background: var(--token-color-bg-recessed); color: var(--token-color-fg-secondary); }
.topics { list-style: none; margin: var(--token-spacing-xl) 0 0; padding: 0; display: grid; gap: var(--token-spacing-xl); }
.topic {
  display: grid; grid-template-columns: minmax(0, 1fr); overflow: hidden;
  background: var(--token-color-paper); border-radius: var(--radius-lg); box-shadow: var(--token-shadow-elev-2);
}
@media (min-width: 52rem) { .topic { grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr); } }
.topic-media { position: relative; background: var(--token-color-bg-recessed); }
.topic-media img { width: 100%; height: 100%; object-fit: cover; object-position: left top; aspect-ratio: 16 / 10; }
.topic-num {
  position: absolute; left: var(--token-spacing-md); top: var(--token-spacing-md);
  display: inline-flex; align-items: center; justify-content: center; min-width: 2rem; height: 2rem; padding: 0 0.5rem;
  border-radius: 999px; background: var(--token-color-paper); color: var(--token-color-fg); box-shadow: var(--token-shadow-elev-2);
  font-family: var(--token-font-mono); font-size: 0.8125rem; font-weight: 600;
}
.topic-body { padding: var(--token-spacing-xl) var(--token-spacing-xl); display: flex; flex-direction: column; gap: var(--token-spacing-md); }
@media (max-width: 40rem) { .topic-body { padding: var(--token-spacing-lg); } }
.topic-title { font-size: 1.5rem; line-height: 1.2; }
.topic-tag { color: var(--token-color-fg-secondary); max-width: 60ch; }
.topic-meta { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.5rem 1.25rem; font-size: 0.875rem; color: var(--token-color-fg-secondary); }
.topic-meta li { display: inline-flex; align-items: center; gap: 0.375rem; }
.topic-meta .ico { color: var(--token-color-fg-tertiary); }
.parts-label, .chips-label { font-size: 0.8125rem; font-weight: 600; color: var(--token-color-fg-secondary); }
.parts { list-style: none; margin: -0.5rem 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.375rem; }
.parts a {
  display: inline-flex; align-items: center; gap: 0.375rem; padding: 0.25rem 0.625rem; border-radius: 999px;
  background: var(--token-color-bg-recessed); color: var(--token-color-fg); font-size: 0.8125rem; text-decoration: none;
}
.parts a:hover { background: var(--token-color-accent-soft); }
.parts .mono { color: var(--token-color-fg-secondary); }
.topic-actions { margin-top: auto; padding-top: var(--token-spacing-sm); display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem 1rem; }
.chips-group { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; }
.chips { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.375rem; }
.chip {
  display: inline-flex; align-items: center; gap: 0.5rem; min-height: 2.25rem; padding: 0 0.75rem; border-radius: 999px;
  background: var(--token-color-bg-recessed); color: var(--token-color-fg); font-size: 0.8125rem; font-weight: 600; text-decoration: none;
  transition: background-color var(--t-fast) var(--ease);
}
.chip:hover { background: var(--token-color-accent-soft); }
.chip .mono { font-weight: 500; color: var(--token-color-fg-secondary); }
.chip.is-current { background: var(--token-color-accent-soft); box-shadow: var(--token-shadow-elev-1); }

/* ---------- footer ---------- */
.foot { background: var(--token-color-bg-recessed); }
.foot-row {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--token-spacing-md);
  padding-top: var(--token-spacing-lg); padding-bottom: var(--token-spacing-lg); font-size: 0.875rem; color: var(--token-color-fg-secondary);
}
.foot-home { display: inline-flex; align-items: center; gap: 0.375rem; font-weight: 600; }
.foot-home .ico { width: 1rem; height: 1rem; }

/* ---------- shortcuts sheet ---------- */
.sheet {
  width: min(34rem, calc(100vw - 2rem)); max-height: calc(100dvh - 4rem); overflow-y: auto; overscroll-behavior: none;
  padding: var(--token-spacing-lg); border: 0; border-radius: var(--radius-lg);
  background: var(--token-color-paper); color: var(--token-color-fg); box-shadow: var(--token-shadow-elev-4);
}
.sheet[open] { display: block; }
.sheet::backdrop { background: var(--ink-scrim); }
.sheet-head { display: flex; align-items: center; justify-content: space-between; gap: var(--token-spacing-md); margin-bottom: var(--token-spacing-md); }
.sheet-head h2 { font-size: 1.25rem; }
.keys { width: 100%; border-collapse: collapse; font-size: 0.9375rem; }
.keys th { text-align: left; font-size: 0.75rem; font-weight: 600; color: var(--token-color-fg-secondary); padding: 0 0 0.5rem; }
.keys td { padding: 0.4375rem 0; vertical-align: top; }
.keys tbody tr + tr td { box-shadow: inset 0 1px 0 var(--token-color-hairline); }
.keys td:first-child { width: 40%; padding-right: var(--token-spacing-md); white-space: nowrap; }
.keys .or { color: var(--token-color-fg-secondary); font-size: 0.75rem; margin: 0 0.25rem; }

/* ---------- responsive ---------- */
@media (max-width: 48rem) {
  .lang-long { display: none; }
  .lang-short { display: inline; }
  .langs-ico { display: none; }
  .bar-word { width: 6rem; }
  .tenant-hub, .tenant-by { display: none; }
  .host-label { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
  .host-home { padding: 0 0.625rem; }
  .tenant-name { max-width: 8rem; }
}
@media (max-width: 26rem) {
  .bar-word { display: none; }
  .lang-btn { min-width: 2.25rem; padding: 0 0.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }
}
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}