/* ============================================================================
 * unikode-docs · app.css
 * Component + layout styles for the specification & runbook library.
 *
 * Token-governed: every color / space / radius / motion value references a
 * --uk-* token from colors_and_type.css. App-local layout dimensions (nav
 * width, banner height) are declared here because no design token exists for
 * them. No raw color literals. No hardcoded transition durations.
 *
 * Authority: docs/design/unikode-design-system.json + farbod-ux-ui-preferences.
 * Monochrome-first, matte, restrained blue accent, MD3-adaptive, a11y-blocking.
 * ========================================================================== */

:root {
  --app-banner-h: 56px;
  --app-nav-rail-w: 76px;
  --app-nav-drawer-w: 232px;
  --app-toc-w: 244px;
  --app-context-w: 312px;
  --app-content-measure: 76ch;
  --app-z-banner: 30;
  --app-z-nav: 40;
  --app-z-sheet: 60;
  --app-z-overlay: 80;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  background: var(--uk-color-bg-page);
  color: var(--uk-color-fg-primary);
  font-family: var(--uk-font-family-sans);
  font-size: var(--uk-type-body-medium);
  line-height: var(--uk-line-height-normal);
  -webkit-font-smoothing: antialiased;
}
#root { height: 100%; }
[hidden] { display: none !important; }

/* ─── Boot state ─────────────────────────────────────────────────────────── */
.boot {
  height: 100%;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: var(--uk-space-16); color: var(--uk-color-fg-muted);
}
.boot__mark { width: 40px; height: 40px; animation: boot-pulse 1.4s var(--uk-easing-standard) infinite; }
.boot__label { font-size: var(--uk-type-label-medium); letter-spacing: var(--uk-letter-spacing-label); text-transform: uppercase; }
@keyframes boot-pulse { 0%,100% { opacity: 0.5; } 50% { opacity: 1; } }

/* ─── App shell ──────────────────────────────────────────────────────────── */
.app { height: 100%; display: grid; grid-template-rows: var(--app-banner-h) 1fr; }
.app__body { min-height: 0; display: grid; grid-template-columns: 1fr; }
@media (min-width: 600px)  { .app__body { grid-template-columns: var(--app-nav-rail-w) 1fr; } }
@media (min-width: 1200px) { .app__body { grid-template-columns: var(--app-nav-drawer-w) 1fr; } }
.app__main { min-width: 0; min-height: 0; overflow-y: auto; scroll-behavior: smooth; }

/* ─── Banner ─────────────────────────────────────────────────────────────── */
.banner {
  grid-row: 1; display: flex; align-items: center; gap: var(--uk-space-12);
  height: var(--app-banner-h); padding: 0 var(--uk-space-16);
  background: var(--uk-color-bg-surface);
  border-bottom: 1px solid var(--uk-color-border-subtle);
  position: sticky; top: 0; z-index: var(--app-z-banner);
}
.banner__menu { display: inline-flex; }
@media (min-width: 600px) { .banner__menu { display: none; } }
.banner__brand { display: inline-flex; align-items: center; gap: var(--uk-space-8); text-decoration: none; color: inherit; font-weight: var(--uk-font-weight-semibold); }
.banner__brand img, .banner__brand svg { width: 24px; height: 24px; }
.banner__brand b { font-weight: var(--uk-font-weight-semibold); }
.banner__crumbs { display: none; align-items: center; gap: var(--uk-space-6); min-width: 0;
  font-family: var(--uk-font-family-mono); font-size: var(--uk-type-body-small); color: var(--uk-color-fg-muted); }
@media (min-width: 840px) { .banner__crumbs { display: flex; } }
.banner__crumbs a { color: var(--uk-color-fg-muted); text-decoration: none; font-weight: var(--uk-font-weight-regular); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.banner__crumbs a:hover { color: var(--uk-color-fg-primary); }
.banner__crumbs .cur { color: var(--uk-color-fg-primary); }
.banner__sep { color: var(--uk-color-border-default); }
.banner__spacer { flex: 1; }
.banner__search {
  display: inline-flex; align-items: center; gap: var(--uk-space-8);
  height: 36px; padding: 0 var(--uk-space-12); min-width: 0;
  border: 1px solid var(--uk-color-border-subtle); border-radius: var(--uk-radius-control);
  background: var(--uk-color-bg-surface-muted); color: var(--uk-color-fg-muted);
  font: inherit; font-size: var(--uk-type-body-small); cursor: text;
  transition: border-color var(--uk-duration-short) var(--uk-easing-standard);
}
.banner__search:hover { border-color: var(--uk-color-border-default); }
.banner__search .lbl { display: none; }
@media (min-width: 600px) { .banner__search { width: 240px; } .banner__search .lbl { display: inline; } }
.banner__search kbd {
  margin-left: auto; font-family: var(--uk-font-family-mono); font-size: 10px;
  padding: 2px 6px; background: var(--uk-color-bg-surface);
  border: 1px solid var(--uk-color-border-default); border-radius: var(--uk-radius-control);
}

/* ─── Icon button ────────────────────────────────────────────────────────── */
.iconbtn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; min-width: 40px; padding: 0;
  border: 1px solid transparent; border-radius: var(--uk-radius-control);
  background: transparent; color: var(--uk-color-fg-secondary); cursor: pointer;
  transition: background var(--uk-duration-micro) var(--uk-easing-standard), color var(--uk-duration-micro) var(--uk-easing-standard);
}
.iconbtn:hover { background: var(--uk-color-bg-surface-muted); color: var(--uk-color-fg-primary); }
.iconbtn[aria-pressed="true"] { background: var(--uk-color-blue-container); color: var(--uk-color-blue-on-container); }
.icon { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.icon--sm { width: 15px; height: 15px; }

/* ─── Navigation (rail → drawer) ───────────────────────────────────────────── */
.nav {
  grid-column: 1; min-height: 0; overflow-y: auto;
  background: var(--uk-color-bg-surface);
  border-right: 1px solid var(--uk-color-border-subtle);
  padding: var(--uk-space-12) var(--uk-space-8);
  display: none;
}
@media (min-width: 600px) { .nav { display: block; } }
.nav__group-label {
  display: none; font-size: var(--uk-type-label-small); letter-spacing: var(--uk-letter-spacing-wide);
  text-transform: uppercase; color: var(--uk-color-fg-muted); font-weight: var(--uk-font-weight-medium);
  padding: var(--uk-space-12) var(--uk-space-12) var(--uk-space-6);
}
@media (min-width: 1200px) { .nav__group-label { display: block; } }
.nav__item {
  display: flex; align-items: center; gap: var(--uk-space-12);
  width: 100%; min-height: 48px; padding: var(--uk-space-8); margin-bottom: 2px;
  border: 1px solid transparent; border-radius: var(--uk-radius-control);
  color: var(--uk-color-fg-secondary); text-decoration: none; cursor: pointer;
  font-size: var(--uk-type-body-medium); background: transparent; text-align: left;
  flex-direction: column; justify-content: center;
  transition: background var(--uk-duration-micro) var(--uk-easing-standard), color var(--uk-duration-micro) var(--uk-easing-standard);
}
.nav__item .icon { width: 20px; height: 20px; }
.nav__item-label { font-size: 10px; letter-spacing: 0.02em; }
@media (min-width: 1200px) {
  .nav__item { flex-direction: row; justify-content: flex-start; min-height: 44px; }
  .nav__item-label { font-size: var(--uk-type-body-medium); }
}
.nav__item:hover { background: var(--uk-color-bg-surface-muted); color: var(--uk-color-fg-primary); }
.nav__item.active { color: var(--uk-color-fg-primary); font-weight: var(--uk-font-weight-medium); background: var(--uk-color-bg-surface-muted); box-shadow: inset 2px 0 0 var(--uk-color-fg-primary); }
.nav__item .count { display: none; margin-left: auto; font-family: var(--uk-font-family-mono); font-size: var(--uk-type-body-small); color: var(--uk-color-fg-muted); }
@media (min-width: 1200px) { .nav__item .count { display: inline; } }

/* Drawer (compact overlay) */
.scrim { position: fixed; inset: 0; background: rgb(26 26 26 / 0.32); z-index: var(--app-z-overlay); border: 0; }
.drawer {
  position: fixed; top: 0; left: 0; bottom: 0; width: var(--app-nav-drawer-w); z-index: calc(var(--app-z-overlay) + 1);
  background: var(--uk-color-bg-surface); border-right: 1px solid var(--uk-color-border-subtle);
  padding: var(--uk-space-12) var(--uk-space-8); overflow-y: auto;
  animation: drawer-in var(--uk-duration-medium) var(--uk-easing-emphasized);
}
.drawer .nav__group-label, .drawer .nav__item-label, .drawer .nav__item .count { display: block; }
.drawer .nav__item { flex-direction: row; justify-content: flex-start; }
.drawer__head { display: flex; align-items: center; justify-content: space-between; padding: var(--uk-space-8) var(--uk-space-8) var(--uk-space-16); }
@keyframes drawer-in { from { transform: translateX(-100%); } to { transform: translateX(0); } }

/* ─── Buttons ────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--uk-space-8);
  min-height: 40px; padding: 0 var(--uk-space-16);
  border: 1px solid var(--uk-color-border-default); border-radius: var(--uk-radius-control);
  background: var(--uk-color-bg-surface); color: var(--uk-color-fg-primary);
  font: inherit; font-size: var(--uk-type-body-medium); font-weight: var(--uk-font-weight-medium); cursor: pointer;
  transition: background var(--uk-duration-micro) var(--uk-easing-standard), border-color var(--uk-duration-micro) var(--uk-easing-standard);
}
.btn:hover { background: var(--uk-color-bg-surface-muted); }
.btn--primary { background: var(--uk-color-charcoal-900); color: var(--uk-color-fg-on-primary); border-color: var(--uk-color-charcoal-900); }
.btn--primary:hover { background: var(--uk-color-charcoal-800); }
.btn--ghost { border-color: transparent; background: transparent; }
.btn--ghost:hover { background: var(--uk-color-bg-surface-muted); }
.btn--sm { min-height: 32px; padding: 0 var(--uk-space-12); font-size: var(--uk-type-body-small); }
.btn:disabled, .btn[aria-disabled="true"] { opacity: 0.38; cursor: not-allowed; }

/* ─── Chips ──────────────────────────────────────────────────────────────── */
.chip {
  display: inline-flex; align-items: center; gap: var(--uk-space-6);
  height: 24px; padding: 0 var(--uk-space-8);
  border: 1px solid var(--uk-color-border-subtle); border-radius: var(--uk-radius-control);
  background: var(--uk-color-bg-surface); color: var(--uk-color-fg-secondary);
  font-size: var(--uk-type-label-small); font-weight: var(--uk-font-weight-medium); white-space: nowrap;
}
.chip--mono { font-family: var(--uk-font-family-mono); letter-spacing: 0; text-transform: none; }
.chip__dot { width: 6px; height: 6px; border-radius: var(--uk-radius-circular); background: currentColor; flex: none; }
/* Status chips — color is a *cue*; the label + dot carry the meaning (no color-only) */
.status { display: inline-flex; align-items: center; gap: var(--uk-space-6); font-size: var(--uk-type-label-small); font-weight: var(--uk-font-weight-medium); text-transform: capitalize; }
.status .chip__dot { background: var(--uk-color-fg-muted); }
.status--active .chip__dot, .status--approved .chip__dot, .status--stable .chip__dot, .status--production .chip__dot { background: var(--uk-state-success-fg); }
.status--draft .chip__dot { background: var(--uk-state-pending-fg); }
.status--superseded .chip__dot, .status--archived .chip__dot { background: var(--uk-color-fg-muted); }
.status--active, .status--approved, .status--stable, .status--production { color: var(--uk-state-success-fg); }
.status--draft { color: var(--uk-state-pending-fg); }
.status--superseded, .status--archived { color: var(--uk-color-fg-muted); }

/* ─── Page scaffold ──────────────────────────────────────────────────────── */
.page { max-width: 1440px; margin: 0 auto; padding: var(--uk-space-24) var(--uk-space-20) var(--uk-space-64); }
@media (min-width: 840px) { .page { padding: var(--uk-space-32) var(--uk-space-32) var(--uk-space-80); } }
.page__eyebrow { font-size: var(--uk-type-label-small); letter-spacing: var(--uk-letter-spacing-eyebrow); text-transform: uppercase; color: var(--uk-color-fg-muted); font-weight: var(--uk-font-weight-medium); margin: 0 0 var(--uk-space-8); }
.page__title { font-size: var(--uk-type-headline-medium); font-weight: var(--uk-font-weight-light); letter-spacing: -0.02em; line-height: var(--uk-line-height-snug); margin: 0; }
.page__lead { font-size: var(--uk-type-body-large); line-height: var(--uk-line-height-loose); color: var(--uk-color-fg-secondary); max-width: 64ch; margin: var(--uk-space-12) 0 0; }
.page__section { margin-top: var(--uk-space-40); }
.page__section-title { font-size: var(--uk-type-title-large); font-weight: var(--uk-font-weight-medium); margin: 0 0 var(--uk-space-16); }

/* ─── Gallery: toolbar ───────────────────────────────────────────────────── */
.gtoolbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: var(--uk-space-12); flex-wrap: wrap;
  padding: var(--uk-space-16) var(--uk-space-20);
  background: color-mix(in srgb, var(--uk-color-bg-page) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--uk-color-border-subtle);
}
@media (min-width: 840px) { .gtoolbar { padding: var(--uk-space-16) var(--uk-space-32); } }
.gtoolbar__title { font-size: var(--uk-type-title-large); font-weight: var(--uk-font-weight-medium); margin: 0; }
.gtoolbar__count { font-family: var(--uk-font-family-mono); font-size: var(--uk-type-body-small); color: var(--uk-color-fg-muted); margin-left: var(--uk-space-8); }
.gtoolbar__spacer { flex: 1; }
.gtoolbar__search { display: inline-flex; align-items: center; gap: var(--uk-space-8); height: 36px; padding: 0 var(--uk-space-12);
  border: 1px solid var(--uk-color-border-subtle); border-radius: var(--uk-radius-control); background: var(--uk-color-bg-surface); min-width: 0; }
.gtoolbar__search input { border: 0; background: transparent; font: inherit; font-size: var(--uk-type-body-small); color: var(--uk-color-fg-primary); outline: none; width: 130px; }
.gtoolbar__search input::placeholder { color: var(--uk-color-fg-muted); }
.seg { display: inline-flex; border: 1px solid var(--uk-color-border-default); border-radius: var(--uk-radius-control); overflow: hidden; }
.seg button { min-height: 36px; padding: 0 var(--uk-space-12); border: 0; background: var(--uk-color-bg-surface); color: var(--uk-color-fg-secondary); font: inherit; font-size: var(--uk-type-body-small); font-weight: var(--uk-font-weight-medium); cursor: pointer; display: inline-flex; align-items: center; gap: var(--uk-space-6); }
.seg button + button { border-left: 1px solid var(--uk-color-border-default); }
.seg button[aria-pressed="true"] { background: var(--uk-color-bg-inverse); color: var(--uk-color-fg-on-inverse); }
.seg button:hover:not([aria-pressed="true"]) { background: var(--uk-color-bg-surface-muted); }
.select { min-height: 36px; padding: 0 var(--uk-space-12); border: 1px solid var(--uk-color-border-default); border-radius: var(--uk-radius-control); background: var(--uk-color-bg-surface); color: var(--uk-color-fg-primary); font: inherit; font-size: var(--uk-type-body-small); cursor: pointer; }
.gfilterbtn { display: inline-flex; } /* compact/medium only — the rail replaces it on expanded+ */
@media (min-width: 840px) { .gfilterbtn { display: none; } }

/* ─── Gallery: body layout (filter rail + results) ───────────────────────── */
.glayout { display: grid; grid-template-columns: 1fr; }
@media (min-width: 840px) { .glayout { grid-template-columns: 248px 1fr; } }
.filters { display: none; border-right: 1px solid var(--uk-color-border-subtle); padding: var(--uk-space-20); overflow-y: auto; }
@media (min-width: 840px) { .filters { display: block; position: sticky; top: 69px; align-self: start; max-height: calc(100vh - var(--app-banner-h) - 69px); } }
.filters__group { margin-bottom: var(--uk-space-24); }
.filters__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--uk-space-8); }
.filters__label { font-size: var(--uk-type-label-small); letter-spacing: var(--uk-letter-spacing-wide); text-transform: uppercase; color: var(--uk-color-fg-muted); font-weight: var(--uk-font-weight-medium); }
.facet { display: flex; align-items: center; gap: var(--uk-space-8); width: 100%; min-height: 32px; padding: var(--uk-space-4) var(--uk-space-6); border: 0; background: transparent; color: var(--uk-color-fg-secondary); font: inherit; font-size: var(--uk-type-body-small); cursor: pointer; border-radius: var(--uk-radius-control); text-align: left; }
.facet:hover { background: var(--uk-color-bg-surface-muted); color: var(--uk-color-fg-primary); }
.facet__box { width: 15px; height: 15px; flex: none; border: 1px solid var(--uk-color-border-default); border-radius: var(--uk-radius-control); display: inline-flex; align-items: center; justify-content: center; }
.facet[aria-pressed="true"] .facet__box { background: var(--uk-color-charcoal-900); border-color: var(--uk-color-charcoal-900); color: var(--uk-color-bone); }
.facet[aria-pressed="true"] { color: var(--uk-color-fg-primary); }
.facet__name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.facet__count { font-family: var(--uk-font-family-mono); font-size: var(--uk-type-label-small); color: var(--uk-color-fg-muted); }

.results { padding: var(--uk-space-20); min-width: 0; }
@media (min-width: 840px) { .results { padding: var(--uk-space-24) var(--uk-space-32); } }
.activefilters { display: flex; flex-wrap: wrap; gap: var(--uk-space-8); margin-bottom: var(--uk-space-16); }
.activefilters .chip { cursor: pointer; }
.activefilters .chip:hover { border-color: var(--uk-color-border-default); }

/* Card grid */
.cardgrid { display: grid; gap: var(--uk-space-16); grid-template-columns: 1fr; }
@media (min-width: 600px) { .cardgrid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1200px) { .cardgrid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1600px) { .cardgrid { grid-template-columns: repeat(4, 1fr); } }
.card {
  display: flex; flex-direction: column; gap: var(--uk-space-8);
  padding: var(--uk-space-16); text-align: left; cursor: pointer; min-height: 48px;
  border: 1px solid var(--uk-color-border-subtle); border-radius: var(--uk-radius-card);
  background: var(--uk-color-bg-surface); color: inherit; font: inherit;
  transition: border-color var(--uk-duration-short) var(--uk-easing-standard), box-shadow var(--uk-duration-short) var(--uk-easing-standard), transform var(--uk-duration-short) var(--uk-easing-standard);
}
.card:hover { border-color: var(--uk-color-border-default); box-shadow: var(--uk-elevation-1); }
.card__top { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--uk-space-8); }
.card__title { font-size: var(--uk-type-title-medium); font-weight: var(--uk-font-weight-medium); line-height: var(--uk-line-height-snug); margin: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card__uid { font-family: var(--uk-font-family-mono); font-size: var(--uk-type-label-small); color: var(--uk-color-fg-muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.card__desc { font-size: var(--uk-type-body-small); color: var(--uk-color-fg-secondary); line-height: var(--uk-line-height-normal); margin: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card__meta { display: flex; flex-wrap: wrap; align-items: center; gap: var(--uk-space-8); margin-top: auto; padding-top: var(--uk-space-8); }
.card__mono { font-family: var(--uk-font-family-mono); font-size: var(--uk-type-label-small); color: var(--uk-color-fg-muted); }

/* List rows */
.rowlist { display: flex; flex-direction: column; border: 1px solid var(--uk-color-border-subtle); border-radius: var(--uk-radius-card); overflow: hidden; background: var(--uk-color-bg-surface); }
.row { display: grid; grid-template-columns: 1fr auto; gap: var(--uk-space-12); align-items: center; width: 100%; min-height: 56px; padding: var(--uk-space-12) var(--uk-space-16); border: 0; border-bottom: 1px solid var(--uk-color-border-subtle); background: transparent; color: inherit; font: inherit; text-align: left; cursor: pointer; }
.row:last-child { border-bottom: 0; }
.row:hover { background: var(--uk-color-bg-surface-muted); }
.row__main { min-width: 0; }
.row__title { font-size: var(--uk-type-body-medium); font-weight: var(--uk-font-weight-medium); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.row__sub { font-family: var(--uk-font-family-mono); font-size: var(--uk-type-label-small); color: var(--uk-color-fg-muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; margin-top: 2px; }
.row__aside { display: flex; align-items: center; gap: var(--uk-space-12); }
.row__cell { font-family: var(--uk-font-family-mono); font-size: var(--uk-type-label-small); color: var(--uk-color-fg-muted); }
@media (max-width: 839px) { .row__cell--hide { display: none; } }

/* ─── States: skeleton / empty / error ───────────────────────────────────── */
.skel { background: linear-gradient(90deg, var(--uk-color-bg-surface-muted) 25%, var(--uk-color-neutral-150) 37%, var(--uk-color-bg-surface-muted) 63%); background-size: 400% 100%; animation: skel 1.4s ease infinite; border-radius: var(--uk-radius-control); }
@keyframes skel { 0% { background-position: 100% 50%; } 100% { background-position: 0 50%; } }
.skel-card { height: 148px; }
.state { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: var(--uk-space-12); padding: var(--uk-space-64) var(--uk-space-24); text-align: center; color: var(--uk-color-fg-muted); }
.state .icon { width: 28px; height: 28px; }
.state__title { font-size: var(--uk-type-title-medium); color: var(--uk-color-fg-secondary); font-weight: var(--uk-font-weight-medium); }
.state__msg { font-size: var(--uk-type-body-small); max-width: 40ch; }

/* ─── Viewer layout ──────────────────────────────────────────────────────── */
.viewer { display: grid; grid-template-columns: 1fr; min-height: 0; }
@media (min-width: 840px)  { .viewer { grid-template-columns: 1fr var(--app-context-w); } }
@media (min-width: 1200px) { .viewer { grid-template-columns: var(--app-toc-w) 1fr var(--app-context-w); } }
.viewer__toc { display: none; }
@media (min-width: 1200px) { .viewer__toc { display: block; position: sticky; top: 0; align-self: start; max-height: calc(100vh - var(--app-banner-h)); overflow-y: auto; padding: var(--uk-space-32) var(--uk-space-16); border-right: 1px solid var(--uk-color-border-subtle); } }
.viewer__main { min-width: 0; padding: var(--uk-space-24) var(--uk-space-20) var(--uk-space-80); }
@media (min-width: 840px) { .viewer__main { padding: var(--uk-space-32) var(--uk-space-40) var(--uk-space-80); } }
.viewer__context { display: none; }
@media (min-width: 840px) { .viewer__context { display: block; position: sticky; top: 0; align-self: start; max-height: calc(100vh - var(--app-banner-h)); overflow-y: auto; padding: var(--uk-space-32) var(--uk-space-20); border-left: 1px solid var(--uk-color-border-subtle); } }

/* Doc bar */
.docbar { padding-bottom: var(--uk-space-16); border-bottom: 1px solid var(--uk-color-border-subtle); margin-bottom: var(--uk-space-24); }
.docbar__eyebrow { font-family: var(--uk-font-family-mono); font-size: var(--uk-type-label-small); color: var(--uk-color-fg-muted); letter-spacing: 0.04em; }
.docbar__title { font-size: var(--uk-type-headline-small); font-weight: var(--uk-font-weight-light); letter-spacing: -0.015em; line-height: var(--uk-line-height-snug); margin: var(--uk-space-8) 0 var(--uk-space-12); }
.docbar__meta { display: flex; flex-wrap: wrap; align-items: center; gap: var(--uk-space-12); }
.docbar__meta .dot { color: var(--uk-color-border-default); }
.docbar__actions { display: flex; gap: var(--uk-space-8); margin-top: var(--uk-space-16); }

/* TOC */
.toc__label { font-size: var(--uk-type-label-small); letter-spacing: var(--uk-letter-spacing-wide); text-transform: uppercase; color: var(--uk-color-fg-muted); font-weight: var(--uk-font-weight-medium); margin: 0 0 var(--uk-space-12); }
.toc__list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; }
.toc__list a { display: block; padding: var(--uk-space-4) var(--uk-space-12); font-size: var(--uk-type-body-small); color: var(--uk-color-fg-muted); text-decoration: none; line-height: var(--uk-line-height-normal); border-left: 1px solid var(--uk-color-border-subtle); font-weight: var(--uk-font-weight-regular); }
.toc__list a:hover { color: var(--uk-color-fg-primary); }
.toc__list a.active { color: var(--uk-color-fg-primary); font-weight: var(--uk-font-weight-medium); border-left-color: var(--uk-color-fg-primary); }
.toc__list a.d3 { padding-left: var(--uk-space-24); }
.toc__list a.d4 { padding-left: var(--uk-space-32); }

/* Segmented tabs */
.tabs { display: inline-flex; gap: var(--uk-space-4); padding: var(--uk-space-4); background: var(--uk-color-bg-surface-muted); border-radius: var(--uk-radius-control); margin-bottom: var(--uk-space-24); flex-wrap: wrap; }
.tabs button { min-height: 36px; padding: 0 var(--uk-space-16); border: 0; border-radius: var(--uk-radius-control); background: transparent; color: var(--uk-color-fg-secondary); font: inherit; font-size: var(--uk-type-body-small); font-weight: var(--uk-font-weight-medium); cursor: pointer; display: inline-flex; align-items: center; gap: var(--uk-space-6); }
.tabs button[aria-selected="true"] { background: var(--uk-color-bg-surface); color: var(--uk-color-fg-primary); box-shadow: var(--uk-elevation-1); }

/* ─── Markdown body ──────────────────────────────────────────────────────── */
.md { max-width: var(--app-content-measure); }
.md .uk-h { scroll-margin-top: calc(var(--app-banner-h) + var(--uk-space-16)); position: relative; }
.md .uk-anchor { position: absolute; left: -1em; opacity: 0; text-decoration: none; color: var(--uk-color-fg-muted); font-weight: var(--uk-font-weight-regular); }
.md .uk-h:hover .uk-anchor { opacity: 1; }
.md .uk-h2 { font-size: var(--uk-type-headline-small); font-weight: var(--uk-font-weight-light); line-height: var(--uk-line-height-snug); margin: var(--uk-space-40) 0 var(--uk-space-16); padding-top: var(--uk-space-8); }
.md .uk-h3 { font-size: var(--uk-type-title-large); font-weight: var(--uk-font-weight-medium); margin: var(--uk-space-32) 0 var(--uk-space-12); }
.md .uk-h4 { font-size: var(--uk-type-title-medium); font-weight: var(--uk-font-weight-semibold); margin: var(--uk-space-24) 0 var(--uk-space-8); }
.md h1 { font-size: var(--uk-type-headline-medium); font-weight: var(--uk-font-weight-light); letter-spacing: -0.02em; margin: 0 0 var(--uk-space-16); }
.md p { font-size: var(--uk-type-body-medium); line-height: var(--uk-line-height-loose); margin: 0 0 var(--uk-space-16); }
.md ul, .md ol { margin: 0 0 var(--uk-space-16); padding-left: var(--uk-space-24); }
.md li { font-size: var(--uk-type-body-medium); line-height: var(--uk-line-height-loose); margin-bottom: var(--uk-space-6); }
.md a { color: var(--uk-color-fg-accent); font-weight: var(--uk-font-weight-medium); text-underline-offset: 0.18em; }
.md strong { font-weight: var(--uk-font-weight-semibold); }
.md blockquote { margin: 0 0 var(--uk-space-16); padding: var(--uk-space-12) var(--uk-space-16); border-left: 3px solid var(--uk-color-blue-accent); background: var(--uk-color-bg-surface); border-radius: var(--uk-radius-control); color: var(--uk-color-fg-secondary); }
.md blockquote p:last-child { margin-bottom: 0; }
.md hr { border: 0; border-top: 1px solid var(--uk-color-border-subtle); margin: var(--uk-space-32) 0; }
.md code:not(pre code) { font-family: var(--uk-font-family-mono); font-size: 0.92em; background: var(--uk-color-bg-surface-muted); border: 1px solid var(--uk-color-border-subtle); border-radius: var(--uk-radius-control); padding: 1px 6px; }
.md .uk-codeblock { position: relative; margin: 0 0 var(--uk-space-20); }
.md .uk-code-lang { position: absolute; top: var(--uk-space-8); right: var(--uk-space-12); font-family: var(--uk-font-family-mono); font-size: var(--uk-type-label-small); color: var(--uk-color-neutral-500); letter-spacing: 0.06em; text-transform: uppercase; }
.md pre { background: var(--uk-color-charcoal-900); color: var(--uk-color-neutral-150); padding: var(--uk-space-16) var(--uk-space-20); border-radius: var(--uk-radius-card); overflow-x: auto; margin: 0; }
.md pre code { font-family: var(--uk-font-family-mono); font-size: var(--uk-type-body-small); line-height: var(--uk-line-height-loose); }
.md .uk-table-wrap { overflow-x: auto; margin: 0 0 var(--uk-space-20); border: 1px solid var(--uk-color-border-subtle); border-radius: var(--uk-radius-card); }
.md .uk-table { border-collapse: collapse; width: 100%; font-size: var(--uk-type-body-small); }
.md .uk-table th, .md .uk-table td { text-align: left; padding: var(--uk-space-8) var(--uk-space-12); border-bottom: 1px solid var(--uk-color-border-subtle); vertical-align: top; }
.md .uk-table th { font-weight: var(--uk-font-weight-semibold); color: var(--uk-color-fg-primary); background: var(--uk-color-bg-surface-muted); white-space: nowrap; }
.md .uk-table tr:last-child td { border-bottom: 0; }

/* ─── Metadata board ─────────────────────────────────────────────────────── */
.metaboard { display: grid; gap: var(--uk-space-12); grid-template-columns: 1fr; }
@media (min-width: 600px) { .metaboard { grid-template-columns: repeat(2, 1fr); } }
.metafield { display: flex; flex-direction: column; gap: 2px; padding: var(--uk-space-12); border: 1px solid var(--uk-color-border-subtle); border-radius: var(--uk-radius-control); background: var(--uk-color-bg-surface); }
.metafield__k { font-size: var(--uk-type-label-small); letter-spacing: var(--uk-letter-spacing-label); text-transform: uppercase; color: var(--uk-color-fg-muted); }
.metafield__v { font-size: var(--uk-type-body-small); color: var(--uk-color-fg-primary); }
.metafield__v.mono { font-family: var(--uk-font-family-mono); }
.metafield--full { grid-column: 1 / -1; }
.reflist { display: flex; flex-direction: column; gap: var(--uk-space-4); }
.reflist a { display: flex; align-items: center; gap: var(--uk-space-8); padding: var(--uk-space-6) var(--uk-space-8); border-radius: var(--uk-radius-control); text-decoration: none; color: var(--uk-color-fg-secondary); font-size: var(--uk-type-body-small); }
.reflist a:hover { background: var(--uk-color-bg-surface-muted); color: var(--uk-color-fg-primary); }

/* Context pane card */
.ctxcard { margin-bottom: var(--uk-space-24); }
.ctxcard__label { font-size: var(--uk-type-label-small); letter-spacing: var(--uk-letter-spacing-wide); text-transform: uppercase; color: var(--uk-color-fg-muted); font-weight: var(--uk-font-weight-medium); margin: 0 0 var(--uk-space-12); }

/* ─── Diagrams ───────────────────────────────────────────────────────────── */
.diagram { border: 1px solid var(--uk-color-border-subtle); border-radius: var(--uk-radius-card); background: var(--uk-color-bg-surface); margin-bottom: var(--uk-space-24); overflow: hidden; }
.diagram__head { display: flex; align-items: center; justify-content: space-between; gap: var(--uk-space-12); padding: var(--uk-space-12) var(--uk-space-16); border-bottom: 1px solid var(--uk-color-border-subtle); }
.diagram__title { font-size: var(--uk-type-title-small); font-weight: var(--uk-font-weight-medium); margin: 0; }
.diagram__hint { font-size: var(--uk-type-label-small); color: var(--uk-color-fg-muted); }
.diagram__body { padding: var(--uk-space-16); }
.diagram svg { display: block; width: 100%; height: auto; }
.diagram svg text { font-family: var(--uk-font-family-sans); }
.gnode { cursor: pointer; }
.gnode__shape { fill: var(--uk-color-bg-surface); stroke: var(--uk-color-border-default); stroke-width: 1.5; transition: stroke var(--uk-duration-micro) var(--uk-easing-standard), fill var(--uk-duration-micro) var(--uk-easing-standard); }
.gnode:hover .gnode__shape { stroke: var(--uk-color-fg-primary); }
.gnode--center .gnode__shape { fill: var(--uk-color-bg-inverse); stroke: var(--uk-color-bg-inverse); }
.gnode--center .gnode__label { fill: var(--uk-color-fg-on-inverse); }
.gnode--runbook .gnode__shape { stroke-dasharray: 0; rx: 14px; }
.gnode--external .gnode__shape { stroke-dasharray: 3 3; fill: var(--uk-color-bg-surface-muted); }
.gnode[aria-pressed="true"] .gnode__shape { stroke: var(--uk-color-blue-accent); stroke-width: 2.5; }
.gnode__label { font-size: 11px; fill: var(--uk-color-fg-primary); pointer-events: none; }
.gnode__sub { font-size: 9px; fill: var(--uk-color-fg-muted); font-family: var(--uk-font-family-mono); pointer-events: none; }
.gedge { fill: none; stroke: var(--uk-color-border-default); stroke-width: 1.25; }
.gedge--lineage { stroke: var(--uk-color-fg-secondary); }
.gedge--related { stroke-dasharray: 4 3; }
.gpanel { border-top: 1px solid var(--uk-color-border-subtle); padding: var(--uk-space-16); background: var(--uk-color-bg-surface-muted); }
.gpanel__title { font-size: var(--uk-type-title-small); font-weight: var(--uk-font-weight-medium); margin: 0 0 var(--uk-space-6); }
.glegend { display: flex; flex-wrap: wrap; gap: var(--uk-space-12); padding: var(--uk-space-12) var(--uk-space-16); border-top: 1px solid var(--uk-color-border-subtle); }
.glegend span { display: inline-flex; align-items: center; gap: var(--uk-space-6); font-size: var(--uk-type-label-small); color: var(--uk-color-fg-muted); }
.glegend i { width: 16px; height: 12px; border: 1.5px solid var(--uk-color-border-default); border-radius: 2px; display: inline-block; }
.glegend i.rb { border-radius: 7px; }
.glegend i.ext { border-style: dashed; }

/* Step control */
.stepctl { display: flex; align-items: center; gap: var(--uk-space-12); padding: var(--uk-space-12) var(--uk-space-16); border-top: 1px solid var(--uk-color-border-subtle); }
.stepctl input[type="range"] { flex: 1; accent-color: var(--uk-color-blue-accent); }
.stepctl__lbl { font-family: var(--uk-font-family-mono); font-size: var(--uk-type-label-small); color: var(--uk-color-fg-muted); min-width: 80px; }

/* Timeline list (compact graph fallback + lineage) */
.timeline { position: relative; padding-left: var(--uk-space-24); }
.timeline::before { content: ""; position: absolute; left: 7px; top: 4px; bottom: 4px; width: 1px; background: var(--uk-color-border-default); }
.tnode { position: relative; padding: var(--uk-space-8) 0 var(--uk-space-8) var(--uk-space-12); }
.tnode::before { content: ""; position: absolute; left: -22px; top: 14px; width: 9px; height: 9px; border-radius: var(--uk-radius-circular); background: var(--uk-color-bg-surface); border: 2px solid var(--uk-color-fg-secondary); }
.tnode--related::before { border-style: dashed; }
.tnode__title { font-size: var(--uk-type-body-small); font-weight: var(--uk-font-weight-medium); }
.tnode__rel { font-size: var(--uk-type-label-small); color: var(--uk-color-fg-muted); text-transform: uppercase; letter-spacing: var(--uk-letter-spacing-label); }
.tnode a { color: inherit; text-decoration: none; }
.tnode a:hover .tnode__title { color: var(--uk-color-fg-accent); }

/* Structure map */
.smap { display: flex; flex-direction: column; }
.smap__item { display: flex; align-items: center; gap: var(--uk-space-8); min-height: 32px; padding: var(--uk-space-4) var(--uk-space-8); border: 0; background: transparent; color: var(--uk-color-fg-secondary); font: inherit; font-size: var(--uk-type-body-small); cursor: pointer; text-align: left; border-radius: var(--uk-radius-control); border-left: 1px solid var(--uk-color-border-subtle); }
.smap__item:hover { background: var(--uk-color-bg-surface-muted); color: var(--uk-color-fg-primary); }
.smap__item.d3 { padding-left: var(--uk-space-24); }
.smap__item.d4 { padding-left: var(--uk-space-40); }
.smap__bullet { width: 5px; height: 5px; border-radius: var(--uk-radius-circular); background: var(--uk-color-fg-muted); flex: none; }

/* Lifecycle stepper */
.lifecycle { display: flex; align-items: stretch; flex-wrap: wrap; gap: var(--uk-space-4); }
.lifestep { display: flex; flex-direction: column; gap: 2px; padding: var(--uk-space-8) var(--uk-space-12); border: 1px solid var(--uk-color-border-subtle); border-radius: var(--uk-radius-control); background: var(--uk-color-bg-surface); flex: 1; min-width: 96px; opacity: 0.55; }
.lifestep.done { opacity: 1; }
.lifestep.current { opacity: 1; border-color: var(--uk-color-fg-primary); box-shadow: inset 0 -2px 0 var(--uk-color-fg-primary); }
.lifestep__n { font-family: var(--uk-font-family-mono); font-size: var(--uk-type-label-small); color: var(--uk-color-fg-muted); }
.lifestep__name { font-size: var(--uk-type-body-small); font-weight: var(--uk-font-weight-medium); text-transform: capitalize; }

/* ─── Charts ─────────────────────────────────────────────────────────────── */
.barset { display: flex; flex-direction: column; gap: var(--uk-space-8); }
.barrow { display: grid; grid-template-columns: 120px 1fr 44px; align-items: center; gap: var(--uk-space-12); }
.barrow__label { font-size: var(--uk-type-body-small); color: var(--uk-color-fg-secondary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.barrow__track { height: 10px; background: var(--uk-color-bg-surface-muted); border-radius: var(--uk-radius-control); overflow: hidden; }
.barrow__fill { height: 100%; background: var(--uk-color-charcoal-700); border-radius: var(--uk-radius-control); transition: width var(--uk-duration-medium) var(--uk-easing-emphasized); }
.barrow__val { font-family: var(--uk-font-family-mono); font-size: var(--uk-type-body-small); color: var(--uk-color-fg-muted); text-align: right; }
.statgrid { display: grid; gap: var(--uk-space-16); grid-template-columns: repeat(2, 1fr); }
@media (min-width: 600px) { .statgrid { grid-template-columns: repeat(4, 1fr); } }
.statcard { padding: var(--uk-space-16); border: 1px solid var(--uk-color-border-subtle); border-radius: var(--uk-radius-card); background: var(--uk-color-bg-surface); }
.statcard__n { font-family: var(--uk-font-family-mono); font-size: var(--uk-type-display-small); font-weight: var(--uk-font-weight-light); line-height: 1; letter-spacing: -0.02em; }
.statcard__l { font-size: var(--uk-type-label-small); letter-spacing: var(--uk-letter-spacing-label); text-transform: uppercase; color: var(--uk-color-fg-muted); margin-top: var(--uk-space-6); }
.treemap { display: flex; flex-wrap: wrap; gap: var(--uk-space-6); }
.treecell { padding: var(--uk-space-8) var(--uk-space-12); border: 1px solid var(--uk-color-border-subtle); border-radius: var(--uk-radius-control); background: var(--uk-color-bg-surface); display: flex; flex-direction: column; gap: 2px; cursor: pointer; }
.treecell:hover { border-color: var(--uk-color-border-default); background: var(--uk-color-bg-surface-muted); }
.treecell__l { font-size: var(--uk-type-body-small); font-weight: var(--uk-font-weight-medium); }
.treecell__n { font-family: var(--uk-font-family-mono); font-size: var(--uk-type-label-small); color: var(--uk-color-fg-muted); }

.collcards { display: grid; gap: var(--uk-space-16); grid-template-columns: 1fr; }
@media (min-width: 600px) { .collcards { grid-template-columns: repeat(2, 1fr); } }
.collcard { display: flex; flex-direction: column; gap: var(--uk-space-8); padding: var(--uk-space-24); border: 1px solid var(--uk-color-border-subtle); border-radius: var(--uk-radius-card); background: var(--uk-color-bg-surface); cursor: pointer; text-align: left; color: inherit; font: inherit; transition: border-color var(--uk-duration-short) var(--uk-easing-standard), box-shadow var(--uk-duration-short) var(--uk-easing-standard); }
.collcard:hover { border-color: var(--uk-color-border-default); box-shadow: var(--uk-elevation-1); }
.collcard__n { font-family: var(--uk-font-family-mono); font-size: var(--uk-type-headline-large); font-weight: var(--uk-font-weight-light); }
.collcard__t { font-size: var(--uk-type-title-medium); font-weight: var(--uk-font-weight-medium); }
.collcard__d { font-size: var(--uk-type-body-small); color: var(--uk-color-fg-secondary); }

/* ─── Command palette ────────────────────────────────────────────────────── */
.palette-scrim { position: fixed; inset: 0; background: rgb(26 26 26 / 0.28); z-index: var(--app-z-overlay); display: flex; align-items: flex-start; justify-content: center; padding: 12vh var(--uk-space-16) var(--uk-space-16); border: 0; }
.palette { width: 100%; max-width: 640px; background: var(--uk-color-bg-elevated); border: 1px solid var(--uk-color-border-subtle); border-radius: var(--uk-radius-card); box-shadow: var(--uk-elevation-3); overflow: hidden; display: flex; flex-direction: column; max-height: 70vh; animation: pal-in var(--uk-duration-short) var(--uk-easing-emphasized); }
@keyframes pal-in { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }
.palette__input { display: flex; align-items: center; gap: var(--uk-space-12); padding: var(--uk-space-16); border-bottom: 1px solid var(--uk-color-border-subtle); }
.palette__input input { flex: 1; border: 0; background: transparent; font: inherit; font-size: var(--uk-type-title-medium); color: var(--uk-color-fg-primary); outline: none; }
.palette__results { overflow-y: auto; padding: var(--uk-space-8); }
.palette__group { font-size: var(--uk-type-label-small); letter-spacing: var(--uk-letter-spacing-label); text-transform: uppercase; color: var(--uk-color-fg-muted); padding: var(--uk-space-8) var(--uk-space-12) var(--uk-space-4); }
.palette__item { display: flex; align-items: center; gap: var(--uk-space-12); width: 100%; padding: var(--uk-space-8) var(--uk-space-12); border: 0; background: transparent; color: inherit; font: inherit; text-align: left; cursor: pointer; border-radius: var(--uk-radius-control); }
.palette__item:hover, .palette__item.sel { background: var(--uk-color-bg-surface-muted); }
.palette__item.sel { box-shadow: inset 2px 0 0 var(--uk-color-fg-primary); }
.palette__item .t { font-size: var(--uk-type-body-medium); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.palette__item .s { font-family: var(--uk-font-family-mono); font-size: var(--uk-type-label-small); color: var(--uk-color-fg-muted); }
.palette__foot { display: flex; gap: var(--uk-space-16); padding: var(--uk-space-8) var(--uk-space-16); border-top: 1px solid var(--uk-color-border-subtle); font-size: var(--uk-type-label-small); color: var(--uk-color-fg-muted); }
.palette__foot kbd { font-family: var(--uk-font-family-mono); }

/* ─── Map page ───────────────────────────────────────────────────────────── */
.mapwrap { padding: var(--uk-space-20); }
@media (min-width: 840px) { .mapwrap { padding: var(--uk-space-24) var(--uk-space-32); } }

/* ─── Utility ────────────────────────────────────────────────────────────── */
.mono { font-family: var(--uk-font-family-mono); }
.muted { color: var(--uk-color-fg-muted); }
.dot { color: var(--uk-color-border-default); }
.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; }
.spin { animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── Reduced motion ─────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}