/* Primer Docs - site styles */

:root {
  --bg: oklch(0.155 0.005 250);
  --bg-1: oklch(0.185 0.005 250);
  --bg-2: oklch(0.22 0.005 250);
  --bg-hover: oklch(0.235 0.005 250);
  --bg-active: oklch(0.27 0.005 250);
  --border: oklch(0.28 0.005 250);
  --border-strong: oklch(0.38 0.005 250);
  --text: oklch(0.95 0.005 250);
  --text-2: oklch(0.72 0.005 250);
  --text-3: oklch(0.55 0.005 250);
  --text-4: oklch(0.4 0.005 250);
  --accent: oklch(0.82 0.17 145);
  --accent-2: oklch(0.72 0.18 145);
  --accent-dim: oklch(0.82 0.17 145 / 0.12);
  --accent-border: oklch(0.82 0.17 145 / 0.3);
  --accent-fg: oklch(0.15 0.005 250);
  --blue: oklch(0.74 0.14 240);
  --blue-dim: oklch(0.74 0.14 240 / 0.12);
  --amber: oklch(0.82 0.16 75);
  --amber-dim: oklch(0.82 0.16 75 / 0.12);
  --red: oklch(0.7 0.2 25);
  --red-dim: oklch(0.7 0.2 25 / 0.12);
  --violet: oklch(0.72 0.16 290);

  --sidebar-w: 280px;
  --toc-w: 220px;
  --topbar-h: 56px;
  --content-max: 760px;

  color-scheme: dark;
}

:root[data-theme="light"] {
  --bg: oklch(0.99 0.003 250);
  --bg-1: oklch(1 0 0);
  --bg-2: oklch(0.97 0.004 250);
  --bg-hover: oklch(0.955 0.004 250);
  --bg-active: oklch(0.93 0.005 250);
  --border: oklch(0.91 0.005 250);
  --border-strong: oklch(0.8 0.006 250);
  --text: oklch(0.22 0.01 250);
  --text-2: oklch(0.42 0.008 250);
  --text-3: oklch(0.55 0.006 250);
  --text-4: oklch(0.7 0.005 250);
  --accent: oklch(0.52 0.16 145);
  --accent-2: oklch(0.45 0.18 145);
  --accent-dim: oklch(0.52 0.16 145 / 0.1);
  --accent-border: oklch(0.52 0.16 145 / 0.4);
  --accent-fg: oklch(1 0 0);
  --blue: oklch(0.5 0.18 240);
  --blue-dim: oklch(0.5 0.18 240 / 0.08);
  --amber: oklch(0.6 0.15 65);
  --amber-dim: oklch(0.65 0.16 65 / 0.12);
  --red: oklch(0.55 0.22 25);
  --red-dim: oklch(0.55 0.22 25 / 0.08);
  --violet: oklch(0.5 0.18 290);
  color-scheme: light;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0;
  font-family: "IBM Plex Sans", system-ui, -apple-system, sans-serif;
  font-size: 15px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
.mono { font-family: "IBM Plex Mono", ui-monospace, monospace; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 8px; border: 2px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: var(--border-strong); }

/* ---------- Layout ---------- */
.layout {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  min-height: 100vh;
}

/* ---------- Topbar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  grid-column: 1 / -1;
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 20px;
  background: color-mix(in oklch, var(--bg-1) 86%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 16px;
  letter-spacing: -0.01em;
  color: var(--text);
}
.brand:hover { text-decoration: none; }
.brand svg { display: block; }
.brand .ver {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-3);
  background: var(--bg-2);
  border: 1px solid var(--border);
  padding: 1px 6px;
  border-radius: 5px;
}
.topbar-search {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  width: 260px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 10px;
  color: var(--text-3);
  font-size: 13px;
  cursor: text;
}
.topbar-search input {
  border: 0; background: transparent; outline: none;
  color: var(--text); font: inherit; flex: 1; min-width: 0;
}
.topbar-search kbd {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 4px; padding: 1px 5px; color: var(--text-3);
}
.topbar-actions { display: flex; align-items: center; gap: 6px; }
.icon-btn {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  border: 1px solid var(--border);
  background: var(--bg-2);
  border-radius: 8px;
  cursor: pointer; color: var(--text-2);
}
.icon-btn:hover { color: var(--text); border-color: var(--border-strong); }

/* ---------- Sidebar ---------- */
.sidebar {
  position: sticky;
  top: var(--topbar-h);
  align-self: start;
  height: calc(100vh - var(--topbar-h));
  overflow-y: auto;
  border-right: 1px solid var(--border);
  padding: 22px 14px 60px;
  background: var(--bg);
}
.nav-group { margin-bottom: 22px; }
.nav-group > .nav-title {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-4);
  padding: 0 10px 8px;
}
.nav-link {
  display: block;
  padding: 6px 10px;
  border-radius: 7px;
  color: var(--text-2);
  font-size: 14px;
  cursor: pointer;
  border-left: 2px solid transparent;
}
.nav-link:hover { background: var(--bg-hover); color: var(--text); text-decoration: none; }
.nav-link.active {
  background: var(--accent-dim);
  color: var(--accent);
  font-weight: 500;
  border-left-color: var(--accent);
  border-radius: 0 7px 7px 0;
}

/* ---------- Content ---------- */
.content-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--toc-w);
  gap: 40px;
  padding: 0 40px;
}
.article {
  max-width: var(--content-max);
  width: 100%;
  margin: 0 auto;
  padding: 40px 0 100px;
  min-width: 0;
}
.breadcrumb {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  color: var(--text-3);
  margin-bottom: 18px;
  display: flex;
  gap: 8px;
}
.breadcrumb .sep { opacity: 0.5; }

.article h1 {
  font-size: 36px;
  font-weight: 600;
  letter-spacing: -0.025em;
  margin: 0 0 10px;
  line-height: 1.15;
  scroll-margin-top: 80px;
}
.article .lead {
  font-size: 18px;
  color: var(--text-2);
  line-height: 1.6;
  margin: 0 0 32px;
}
.article h2 {
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 44px 0 14px;
  padding-top: 8px;
  scroll-margin-top: 80px;
}
.article h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 30px 0 10px;
  scroll-margin-top: 80px;
}
.article h2 .anchor, .article h3 .anchor {
  opacity: 0; color: var(--text-4); margin-left: 8px; font-weight: 400;
  text-decoration: none;
}
.article h2:hover .anchor, .article h3:hover .anchor { opacity: 1; }
.article p { margin: 0 0 16px; }
.article ul, .article ol { margin: 0 0 16px; padding-left: 22px; }
.article li { margin-bottom: 6px; }
.article hr { border: 0; border-top: 1px solid var(--border); margin: 40px 0; }

.article :not(pre) > code {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.86em;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 1px 5px;
  color: var(--accent);
}

/* code blocks */
.codeblock {
  margin: 0 0 20px;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  background: var(--bg-1);
}
.codeblock .cb-head {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 14px;
  border-bottom: 1px solid var(--border);
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  color: var(--text-3);
  background: var(--bg-2);
}
.codeblock .cb-head .lang { margin-left: auto; text-transform: uppercase; letter-spacing: 0.05em; font-size: 10px; }
.codeblock pre {
  margin: 0; padding: 14px 16px; overflow-x: auto;
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px; line-height: 1.6; color: var(--text-2);
}
.codeblock pre .k { color: var(--violet); }
.codeblock pre .s { color: var(--accent); }
.codeblock pre .n { color: var(--amber); }
.codeblock pre .c { color: var(--text-4); font-style: italic; }
.codeblock pre .m { color: var(--blue); }

/* callouts */
.callout {
  display: flex; gap: 12px;
  padding: 14px 16px;
  border-radius: 10px;
  margin: 0 0 20px;
  font-size: 14px;
  border: 1px solid var(--border);
  background: var(--bg-1);
}
.callout .ico { flex-shrink: 0; margin-top: 1px; }
.callout .body { min-width: 0; }
.callout .body > :last-child { margin-bottom: 0; }
.callout-info { background: var(--blue-dim); border-color: color-mix(in oklch, var(--blue) 30%, transparent); }
.callout-info .ico { color: var(--blue); }
.callout-success { background: var(--accent-dim); border-color: var(--accent-border); }
.callout-success .ico { color: var(--accent); }
.callout-warning { background: var(--amber-dim); border-color: color-mix(in oklch, var(--amber) 30%, transparent); }
.callout-warning .ico { color: var(--amber); }
.callout-danger { background: var(--red-dim); border-color: color-mix(in oklch, var(--red) 30%, transparent); }
.callout-danger .ico { color: var(--red); }
.callout-tip { background: var(--violet-dim, color-mix(in oklch, var(--violet) 12%, transparent)); border-color: color-mix(in oklch, var(--violet) 30%, transparent); }
.callout-tip .callout-title { color: var(--violet); }
/* static build: vertical layout with a labelled kind title + markdown body */
.callout { flex-direction: column; gap: 6px; }
.callout-title {
  font-weight: 600; font-size: 11px; text-transform: uppercase; letter-spacing: 0.04em;
}
.callout-info .callout-title { color: var(--blue); }
.callout-success .callout-title { color: var(--accent); }
.callout-warning .callout-title { color: var(--amber); }
.callout-danger .callout-title { color: var(--red); }
.callout-body { min-width: 0; }
.callout-body > :last-child { margin-bottom: 0; }

/* tabs */
.tabs { margin: 0 0 20px; }
.tabs .tab-row { display: flex; gap: 2px; border-bottom: 1px solid var(--border); }
.tabs .tab {
  padding: 8px 14px; font-size: 13px; cursor: pointer;
  color: var(--text-3); border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.tabs .tab:hover { color: var(--text); }
.tabs .tab.active { color: var(--text); border-bottom-color: var(--accent); font-weight: 500; }
.tabs .tab-panel { display: none; padding-top: 16px; }
.tabs .tab-panel.active { display: block; }
.tabs .tab-panel .codeblock { margin-bottom: 0; }
.tabs .tab-panel .md-pre {
  margin: 0; padding: 14px 16px; overflow-x: auto;
  border: 1px solid var(--border); border-radius: 10px; background: var(--bg-1);
  font-family: "IBM Plex Mono", monospace; font-size: 13px; line-height: 1.6; color: var(--text-2);
}

/* mermaid diagrams (rendered client-side; source shown until then) */
pre.mermaid {
  margin: 0 0 20px; padding: 16px; text-align: center;
  background: var(--bg-1); border: 1px solid var(--border); border-radius: 10px;
  font-family: "IBM Plex Mono", monospace; font-size: 13px; color: var(--text-3);
  overflow-x: auto;
}

/* ai-doc cross-link card (agent-facing reference) */
.ai-doc {
  display: block; padding: 12px 16px; margin: 0 0 20px;
  background: var(--bg-1); border: 1px solid var(--violet);
  border-left: 4px solid var(--violet); border-radius: 10px; color: var(--text);
}
.ai-doc:hover { text-decoration: none; background: var(--bg-hover); }
.ai-doc .ai-doc-label {
  font-weight: 600; font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--violet); margin-bottom: 4px;
}
.ai-doc .ai-doc-slug { font-weight: 600; font-size: 14px; }

/* embed: live-component screenshot figure (light/dark via <picture>) */
figure.embed {
  margin: 0 0 20px; padding: 0;
  border: 1px solid var(--border); border-radius: 10px; overflow: hidden;
  background: var(--bg-1);
}
figure.embed picture, figure.embed img {
  display: block; width: 100%; height: auto;
}
figure.embed figcaption {
  padding: 8px 14px; font-size: 12px; color: var(--text-3);
  border-top: 1px solid var(--border); background: var(--bg-2);
}

/* tables */
.article table {
  width: 100%; border-collapse: collapse; margin: 0 0 20px; font-size: 14px;
  border: 1px solid var(--border); border-radius: 10px; overflow: hidden;
}
.article th {
  text-align: left; font-weight: 600; font-size: 12px;
  text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-3);
  padding: 10px 14px; background: var(--bg-1); border-bottom: 1px solid var(--border);
}
.article td { padding: 10px 14px; border-bottom: 1px solid var(--border); color: var(--text-2); vertical-align: top; }
.article tr:last-child td { border-bottom: 0; }

/* step list */
.steps { counter-reset: step; margin: 0 0 20px; padding: 0; list-style: none; }
.steps > li {
  position: relative; padding: 0 0 24px 44px; margin: 0;
  border-left: 1px solid var(--border); margin-left: 14px;
}
.steps > li:last-child { border-left-color: transparent; padding-bottom: 0; }
.steps > li::before {
  counter-increment: step; content: counter(step);
  position: absolute; left: -14px; top: -4px;
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--bg-2); border: 1px solid var(--border-strong);
  display: grid; place-items: center;
  font-family: "IBM Plex Mono", monospace; font-size: 13px; font-weight: 600; color: var(--accent);
}
.steps > li h3 { margin-top: 0; }

/* card grid */
.card-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 0 0 20px; }
.doc-card {
  display: block; padding: 16px; border: 1px solid var(--border); border-radius: 10px;
  background: var(--bg-1); color: var(--text);
}
.doc-card:hover { border-color: var(--accent-border); text-decoration: none; background: var(--bg-hover); }
.doc-card .t { font-weight: 600; margin-bottom: 4px; display: flex; align-items: center; gap: 8px; }
.doc-card .d { font-size: 13px; color: var(--text-3); }

/* pager */
.pager { display: flex; gap: 14px; margin-top: 48px; }
.pager a {
  flex: 1; padding: 14px 16px; border: 1px solid var(--border); border-radius: 10px;
  color: var(--text); background: var(--bg-1);
}
.pager a:hover { border-color: var(--accent-border); text-decoration: none; background: var(--bg-hover); }
.pager .dir { font-size: 12px; color: var(--text-3); font-family: "IBM Plex Mono", monospace; }
.pager .ttl { font-weight: 600; margin-top: 2px; }
.pager .next { text-align: right; }

/* ---------- TOC ---------- */
.toc {
  position: sticky;
  top: calc(var(--topbar-h) + 40px);
  align-self: start;
  height: fit-content;
  max-height: calc(100vh - var(--topbar-h) - 80px);
  overflow-y: auto;
  padding-left: 16px;
  border-left: 1px solid var(--border);
}
.toc .toc-title {
  font-size: 11px; font-weight: 600; letter-spacing: 0.07em; text-transform: uppercase;
  color: var(--text-4); margin-bottom: 12px;
}
.toc a {
  display: block; padding: 4px 0; font-size: 13px; color: var(--text-3);
  border-left: 2px solid transparent; padding-left: 12px; margin-left: -14px;
}
.toc a:hover { color: var(--text); text-decoration: none; }
.toc a.active { color: var(--accent); border-left-color: var(--accent); }
.toc a.h3 { padding-left: 24px; font-size: 12.5px; }

/* mobile */
.menu-toggle { display: none; }
@media (max-width: 1100px) {
  .content-wrap { grid-template-columns: minmax(0, 1fr); }
  .toc { display: none; }
}
@media (max-width: 800px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed; top: var(--topbar-h); left: 0; bottom: 0; width: 280px; z-index: 40;
    transform: translateX(-100%); transition: transform 0.2s; background: var(--bg-1);
  }
  .sidebar.open { transform: none; }
  .menu-toggle { display: grid; }
  .topbar-search { width: auto; }
  .topbar-search .ph { display: none; }
  .content-wrap { padding: 0 20px; }
}