/* ── Variables ───────────────────────────────────────────────────── */
:root {
  --hdr:        58px;
  --sidebar:    272px;
  --primary:    #07456A;
  --primary-dk: #002850;
  --accent:     #FFD200;
  --sidebar-bg: #f4f8fc;
  --sidebar-br: #d0dae6;
  --active-bg:  #DBECFB;
  --active-fg:  #07456A;
  --text:       #212529;
  --muted:      #777;
  --border:     #d8dde4;
  --code-bg:    #f3f4f6;
}

/* ── Base ────────────────────────────────────────────────────────── */
html, body { height: 100%; overflow: hidden; margin: 0; }

body.docs-page {
  display: flex; flex-direction: column;
  font-family: 'Barlow', -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  color: var(--text); background: #fff;
}

/* ── Header ─────────────────────────────────────────────────────── */
.docs-header {
  height: var(--hdr); flex-shrink: 0;
  background: var(--primary);
  display: flex; align-items: center; padding: 0 1.25rem; gap: 1rem;
  box-shadow: 0 2px 8px rgba(0,0,0,.2); z-index: 200;
}

.docs-logo {
  display: flex; align-items: center; gap: .5rem;
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700; font-size: 1.05rem; letter-spacing: .01em;
  color: #fff; text-decoration: none; white-space: nowrap; flex-shrink: 0;
}
.site-logo-img { width: 32px; height: 32px; }
.docs-logo:hover { color: var(--accent); }

.docs-searchbox { flex: 1; max-width: 480px; position: relative; }
.docs-searchbox .bi {
  position: absolute; left: .7rem; top: 50%; transform: translateY(-50%);
  color: rgba(255,255,255,.6); font-size: .82rem; pointer-events: none;
}
.docs-searchbox input {
  width: 100%;
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 8px;
  padding: .42rem .8rem .42rem 2.1rem;
  font-family: 'Barlow', sans-serif;
  font-size: .875rem;
  background: rgba(255,255,255,.15);
  color: #fff; outline: none;
  transition: border-color .15s, background .15s, box-shadow .15s;
}
.docs-searchbox input:focus {
  border-color: rgba(255,255,255,.65);
  background: #fff;
  color: var(--text);
  box-shadow: 0 0 0 3px rgba(255,210,0,.3);
}
.docs-searchbox input:focus + .bi { color: var(--muted); }
.docs-searchbox input::placeholder { color: rgba(255,255,255,.5); }

.docs-toplink {
  font-size: .85rem; color: rgba(255,255,255,.75); text-decoration: none;
  padding: .35rem .7rem; border-radius: 6px; white-space: nowrap;
  flex-shrink: 0; margin-left: auto;
  transition: background .1s, color .1s;
}
.docs-toplink:hover { background: rgba(255,255,255,.12); color: #fff; }

/* ── Body ────────────────────────────────────────────────────────── */
.docs-body { display: flex; flex: 1; overflow: hidden; }

/* ── Sidebar ─────────────────────────────────────────────────────── */
.docs-sidebar {
  width: var(--sidebar); flex-shrink: 0;
  background: var(--sidebar-bg); border-right: 1px solid var(--sidebar-br);
  overflow-y: auto; overflow-x: hidden;
  padding: .75rem 0 2rem;
}

/* ── Navigation ──────────────────────────────────────────────────── */
.docs-nav { padding: 0; }
.nav-group { margin-bottom: 1px; }

.nav-group-hdr {
  display: flex; align-items: center; gap: .5rem;
  padding: .5rem 1rem; width: 100%;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: .88rem; font-weight: 700; letter-spacing: .02em;
  color: var(--text); text-decoration: none;
  text-transform: uppercase;
  transition: background .1s, color .1s;
}
.nav-group-hdr .nav-icon  { font-size: .9rem; color: var(--primary); flex-shrink: 0; }
.nav-group-hdr .nav-label { flex: 1; }
.nav-group-hdr .nav-caret { font-size: .68rem; color: var(--muted); transition: transform .2s; flex-shrink: 0; }
.nav-group-hdr:hover { background: rgba(7,69,106,.06); color: var(--primary); }
.nav-group-hdr.is-cur {
  background: var(--active-bg);
  color: var(--active-fg);
  border-left: 3px solid var(--accent);
  padding-left: calc(1rem - 3px);
}

.nav-group.is-open > .nav-group-hdr .nav-caret { transform: rotate(90deg); }
.nav-children { display: none; }
.nav-group.is-open > .nav-children { display: block; }

.nav-child {
  display: block; padding: .38rem 1rem .38rem 2.35rem;
  font-size: .81rem; color: #4b5563; text-decoration: none;
  transition: background .1s, color .1s;
}
.nav-child:hover { background: rgba(7,69,106,.05); color: var(--primary); }
.nav-child.is-cur {
  background: var(--active-bg);
  color: var(--active-fg);
  font-weight: 600;
  border-left: 3px solid var(--accent);
  padding-left: calc(2.35rem - 3px);
}

/* Nested subgroup */
.nav-subgroup-hdr {
  display: flex; align-items: center; gap: .35rem;
  padding: .38rem 1rem .38rem 2.35rem;
  font-size: .81rem; font-weight: 500; color: #4b5563;
  text-decoration: none;
  transition: background .1s, color .1s;
}
.nav-subgroup-hdr .nav-label { flex: 1; }
.nav-subgroup-hdr .nav-caret { font-size: .65rem; color: var(--muted); transition: transform .2s; flex-shrink: 0; }
.nav-subgroup-hdr:hover { background: rgba(7,69,106,.05); color: var(--primary); }
.nav-subgroup-hdr.is-cur {
  background: var(--active-bg);
  color: var(--active-fg);
  border-left: 3px solid var(--accent);
  padding-left: calc(2.35rem - 3px);
}
.nav-subgroup.is-open > .nav-subgroup-hdr .nav-caret { transform: rotate(90deg); }
.nav-subgroup.is-open > .nav-children { display: block; }

.nav-deep { padding-left: 3.5rem; }
.nav-deep.is-cur { padding-left: calc(3.5rem - 3px); }

.nav-empty {
  display: none; padding: 1rem; font-size: .8rem;
  color: var(--muted); text-align: center;
}
.nav-empty.show { display: block; }

/* ── Main ────────────────────────────────────────────────────────── */
.docs-main {
  flex: 1; overflow-y: auto;
  padding: 2.25rem 2.75rem;
  background: #fff;
}
.docs-article { max-width: 720px; }

/* ── Markdown typography ─────────────────────────────────────────── */
.docs-article h1 {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 2rem; font-weight: 700; letter-spacing: .01em;
  color: var(--primary-dk);
  margin: 0 0 .75rem; padding-bottom: .65rem;
  border-bottom: 2px solid var(--accent);
  line-height: 1.2;
}
.docs-article h2 {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1.3rem; font-weight: 700; letter-spacing: .01em;
  color: var(--primary);
  margin: 2rem 0 .6rem;
}
.docs-article h3 {
  font-size: .975rem; font-weight: 600; color: #1e293b;
  margin: 1.5rem 0 .4rem;
}
.docs-article p  { line-height: 1.75; color: #374151; margin: 0 0 .9rem; }
.docs-article ul,
.docs-article ol { padding-left: 1.5rem; margin-bottom: .9rem; }
.docs-article li { line-height: 1.75; margin-bottom: .2rem; color: #374151; }
.docs-article strong { color: var(--primary-dk); font-weight: 600; }
.docs-article a {
  color: var(--primary); text-decoration: none;
  border-bottom: 1px solid rgba(7,69,106,.3);
}
.docs-article a:hover { border-bottom-color: var(--primary); }

.docs-article code {
  background: var(--code-bg); border: 1px solid #e5e7eb;
  border-radius: 4px; padding: .12em .4em;
  font-size: .875em; font-family: "SF Mono", Consolas, "Courier New", monospace;
  color: #b91c1c;
}
.docs-article pre {
  background: var(--code-bg); border: 1px solid var(--border);
  border-radius: 8px; padding: 1rem; overflow-x: auto; margin-bottom: 1rem;
}
.docs-article pre code { background: none; border: none; padding: 0; color: var(--text); }

.docs-article blockquote {
  border-left: 3px solid var(--accent);
  background: #f4f8fc; padding: .75rem 1rem;
  border-radius: 0 6px 6px 0; margin: 1rem 0;
}
.docs-article blockquote p { color: var(--text); margin: 0; }

.docs-article table { width: 100%; border-collapse: collapse; margin-bottom: 1rem; font-size: .9rem; }
.docs-article th {
  background: var(--sidebar-bg); border: 1px solid var(--border);
  padding: .55rem .85rem; font-weight: 600; text-align: left;
  font-family: 'Barlow Condensed', sans-serif; letter-spacing: .02em;
}
.docs-article td { border: 1px solid var(--border); padding: .5rem .85rem; }
.docs-article tr:hover td { background: #fafbfc; }
.docs-article hr { border: none; border-top: 1px solid var(--border); margin: 1.5rem 0; }

/* ── Search filter ───────────────────────────────────────────────── */
.search-hidden { display: none !important; }

/* ── Responsive ──────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .docs-sidebar { display: none; }
  .docs-main { padding: 1.5rem 1.25rem; }
  .docs-header { padding: 0 1rem; }
  .docs-searchbox { max-width: 100%; }
}

/* ── Theme toggle button ─────────────────────────────────────────── */
.theme-btn {
  background: none; border: none; cursor: pointer;
  color: rgba(255,255,255,.75); padding: .35rem .45rem;
  border-radius: 6px; display: flex; align-items: center;
  font-size: 1rem; flex-shrink: 0;
  transition: background .1s, color .1s;
}
.theme-btn:hover { background: rgba(255,255,255,.12); color: #fff; }

/* ── Dark mode ───────────────────────────────────────────────────── */
[data-theme="dark"] {
  --sidebar-bg: #0a1724;
  --sidebar-br: #1a3347;
  --active-bg:  #0e2d42;
  --active-fg:  #a8d4f0;
  --text:       #d4dfe8;
  --muted:      #6e8fa8;
  --border:     #1a3347;
  --code-bg:    #081421;
  --primary:    #5aabde;
  --primary-dk: #a8d4f0;
}
[data-theme="dark"] body.docs-page  { background: #0d1b26; }
[data-theme="dark"] .docs-header    { background: #051525; box-shadow: 0 2px 8px rgba(0,0,0,.4); }
[data-theme="dark"] .docs-main      { background: #0d1b26; }
[data-theme="dark"] .nav-group-hdr  { color: var(--text); }
[data-theme="dark"] .nav-child      { color: #8fb0c8; }
[data-theme="dark"] .nav-subgroup-hdr { color: #8fb0c8; }
[data-theme="dark"] .nav-group-hdr:hover,
[data-theme="dark"] .nav-child:hover,
[data-theme="dark"] .nav-subgroup-hdr:hover { background: rgba(90,171,222,.08); color: var(--primary); }
[data-theme="dark"] .docs-article p,
[data-theme="dark"] .docs-article li  { color: #b8c9d9; }
[data-theme="dark"] .docs-article h1  { color: #e8f2fa; border-bottom-color: var(--accent); }
[data-theme="dark"] .docs-article h2  { color: #a8d4f0; }
[data-theme="dark"] .docs-article h3  { color: #c8dcea; }
[data-theme="dark"] .docs-article strong { color: #e8f2fa; }
[data-theme="dark"] .docs-article code  { background: #081421; border-color: #1a3347; color: #f07878; }
[data-theme="dark"] .docs-article pre   { background: #081421; border-color: #1a3347; }
[data-theme="dark"] .docs-article blockquote { background: #081e2e; }
[data-theme="dark"] .docs-article th   { background: #0a1724; border-color: #1a3347; color: var(--text); }
[data-theme="dark"] .docs-article td   { border-color: #1a3347; }
[data-theme="dark"] .docs-article tr:hover td { background: #0e2030; }
[data-theme="dark"] .docs-article hr   { border-top-color: #1a3347; }
[data-theme="dark"] .docs-searchbox input { border-color: rgba(255,255,255,.2); }