/* TrinoHub docs — palette, type, and header lifted from trinohub.org so the
   docs read as the same site rather than a bolted-on subdomain. */

:root {
  --navy:       #0a2a66;
  --ink:        #0f1b33;
  --body:       #33405c;
  --muted:      #52607a;
  --muted-2:    #8a95ab;
  --line:       #e2e6f0;
  --line-2:     #cbd2e2;
  --soft:       #f6f7fb;
  --softer:     #fafbfd;
  --blue-soft:  #eef3fb;
  --purple:     #6322a6;
  --purple-2:   #9e3fd6;
  --purple-3:   #a734d7;
  --purple-soft:#f3eafc;
  --purple-sr:  #faf6fe;
  --green:      #16a37b;
  --grad: linear-gradient(90deg, #6322a6, #9e3fd6, #a734d7);

  --hdr-h: 58px;
  --side-w: 264px;
  --toc-w: 210px;
  --sans: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--sans);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.72;
  color: var(--body);
  background: #fff;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--purple); text-decoration: none; }

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: #fff; padding: 10px 16px; border: 1px solid var(--line);
  border-radius: 0 0 8px 0; font-weight: 600;
}
.skip:focus { left: 0; }

/* ---------------------------------------------------------------- header */

.hdr {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.hdr-nav {
  height: var(--hdr-h);
  max-width: 1440px; margin: 0 auto; padding: 0 22px;
  display: flex; align-items: center; gap: 14px;
}
.brand { display: flex; align-items: center; gap: 9px; }
.brand span {
  font-weight: 800; font-size: 1.08rem; letter-spacing: -0.02em; color: var(--navy);
}
.grad {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.brand-sep { color: var(--line-2); font-weight: 300; }
.brand-docs { color: var(--muted); font-weight: 600; font-size: 1rem; letter-spacing: -0.01em; }
.spacer { flex: 1; }

.hdr-link { color: var(--muted); font-weight: 600; font-size: 0.9rem; }
.hdr-link:hover { color: var(--navy); }

.hdr-ghost {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 7px 13px; border: 1px solid var(--line-2); border-radius: 8px;
  color: var(--navy); font-weight: 700; font-size: 0.86rem; background: #fff;
  transition: border-color .15s, box-shadow .15s;
}
.hdr-ghost:hover { border-color: var(--purple-2); box-shadow: 0 2px 10px rgba(99,34,166,0.10); }

.search-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 10px 7px 12px; min-width: 210px;
  border: 1px solid var(--line); border-radius: 9px; background: var(--soft);
  color: var(--muted-2); font-family: var(--sans); font-size: 0.87rem; font-weight: 400;
  cursor: pointer; transition: border-color .15s, background .15s;
}
.search-btn:hover { border-color: var(--line-2); background: #fff; }
.search-btn span { flex: 1; text-align: left; }
.search-btn kbd, .modal-top kbd {
  font-family: var(--sans); font-size: 0.72rem; font-weight: 600; color: var(--muted-2);
  border: 1px solid var(--line); border-radius: 5px; padding: 1px 6px; background: #fff;
}

.menu-btn {
  display: none; padding: 6px; border: 1px solid var(--line); border-radius: 8px;
  background: #fff; color: var(--navy); cursor: pointer;
}

/* ---------------------------------------------------------------- layout */

.shell {
  max-width: 1440px; margin: 0 auto; padding: 0 22px;
  display: grid; grid-template-columns: var(--side-w) minmax(0, 1fr) var(--toc-w);
  gap: 44px; align-items: start;
}

.side {
  position: sticky; top: var(--hdr-h);
  height: calc(100vh - var(--hdr-h));
  overflow-y: auto; overscroll-behavior: contain;
  padding: 30px 8px 60px 0;
}
.side-inner { display: flex; flex-direction: column; }

.side-home, .side-link {
  display: block; padding: 6px 12px; margin-left: -12px;
  border-radius: 7px; font-size: 0.905rem; font-weight: 400;
  color: var(--muted); line-height: 1.45;
  transition: color .12s, background .12s;
}
.side-home:hover, .side-link:hover { color: var(--navy); background: var(--soft); }
.side-home.on, .side-link.on {
  color: var(--purple); font-weight: 600; background: var(--purple-soft);
}
.side-home { font-weight: 600; color: var(--navy); }

.side-group { margin-top: 26px; }
.side-label {
  font-size: 0.685rem; font-weight: 700; letter-spacing: 0.09em;
  text-transform: uppercase; color: var(--muted-2); margin-bottom: 9px; padding-left: 0;
}

.main { min-width: 0; padding: 40px 0 90px; }

.toc {
  position: sticky; top: var(--hdr-h);
  max-height: calc(100vh - var(--hdr-h)); overflow-y: auto;
  padding: 44px 0 60px;
}
.toc-inner { display: flex; flex-direction: column; border-left: 1px solid var(--line); }
.toc-label {
  font-size: 0.685rem; font-weight: 700; letter-spacing: 0.09em; text-transform: uppercase;
  color: var(--muted-2); padding: 0 0 9px 16px;
}
.toc-2, .toc-3 {
  padding: 4px 0 4px 16px; margin-left: -1px;
  border-left: 2px solid transparent;
  font-size: 0.83rem; font-weight: 400; color: var(--muted); line-height: 1.5;
}
.toc-3 { padding-left: 28px; font-size: 0.8rem; }
.toc-2:hover, .toc-3:hover { color: var(--navy); }
.toc-2.on, .toc-3.on { color: var(--purple); font-weight: 600; border-left-color: var(--purple-2); }

/* --------------------------------------------------------------- content */

.doc { max-width: 780px; }

.eyebrow {
  font-size: 0.7rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--purple-2); margin-bottom: 10px;
}

.doc h1 {
  font-size: clamp(2rem, 4vw, 2.5rem); font-weight: 700; letter-spacing: -0.035em;
  line-height: 1.15; color: var(--navy); margin: 0 0 20px;
}
.doc h2 {
  font-size: 1.42rem; font-weight: 700; letter-spacing: -0.022em; color: var(--navy);
  margin: 56px 0 14px; padding-top: 24px; border-top: 1px solid var(--line);
  scroll-margin-top: calc(var(--hdr-h) + 18px);
}
.doc h3 {
  font-size: 1.08rem; font-weight: 600; letter-spacing: -0.012em; color: var(--navy);
  margin: 34px 0 10px; scroll-margin-top: calc(var(--hdr-h) + 18px);
}
.doc h4 {
  font-size: 0.95rem; font-weight: 600; color: var(--ink); margin: 26px 0 8px;
  scroll-margin-top: calc(var(--hdr-h) + 18px);
}

.doc p { margin: 0 0 18px; }
.doc strong { font-weight: 600; color: var(--ink); }

.doc a:not(.headerlink) {
  color: var(--purple); font-weight: 400;
  border-bottom: 1px solid rgba(99,34,166,0.28);
  transition: border-color .12s, background .12s;
}
.doc a:not(.headerlink):hover { border-bottom-color: var(--purple-2); background: var(--purple-sr); }

.headerlink {
  margin-left: 10px; color: var(--line-2); font-weight: 400; opacity: 0;
  transition: opacity .12s;
}
h2:hover .headerlink, h3:hover .headerlink, h4:hover .headerlink { opacity: 1; }
.headerlink:hover { color: var(--purple-2); }

.doc ul, .doc ol { margin: 0 0 18px; padding-left: 1.35em; }
.doc li { margin: 7px 0; }
.doc li::marker { color: var(--purple-2); }
.doc ul ul, .doc ol ol, .doc ul ol, .doc ol ul { margin: 7px 0 0; }

.doc hr { border: 0; border-top: 1px solid var(--line); margin: 44px 0; }

/* inline + block code */
.doc :not(pre) > code {
  font-family: var(--mono); font-size: 0.845em; font-weight: 400;
  color: var(--purple); background: var(--purple-sr);
  border: 1px solid #efe3fb; border-radius: 5px; padding: 1px 5px;
  word-break: break-word;
}
.doc pre {
  margin: 0 0 22px; padding: 16px 18px;
  background: var(--ink); border-radius: 11px; overflow-x: auto;
  box-shadow: 0 1px 3px rgba(10,42,102,0.10), 0 8px 24px -12px rgba(10,42,102,0.28);
}
.doc pre code {
  font-family: var(--mono); font-size: 0.83rem; font-weight: 400; line-height: 1.65;
  color: #d7e0f2; background: none; border: 0; padding: 0;
}

/* pygments, tuned for the dark navy block */
.hl .k, .hl .kd, .hl .kn, .hl .kr { color: #c98bff; }
.hl .s, .hl .s1, .hl .s2, .hl .sb { color: #7ee6a8; }
.hl .c, .hl .c1, .hl .cm { color: #6d86ad; font-style: italic; }
.hl .nb, .hl .nf, .hl .nv { color: #5fd0ff; }
.hl .m, .hl .mi, .hl .mf { color: #ffc98b; }
.hl .o, .hl .p { color: #9db4d6; }

.doc blockquote {
  margin: 0 0 22px; padding: 14px 18px;
  background: var(--purple-sr); border-left: 3px solid var(--purple-2);
  border-radius: 0 9px 9px 0; color: var(--muted);
}
.doc blockquote p:last-child { margin: 0; }

.doc table {
  width: 100%; margin: 0 0 22px; border-collapse: separate; border-spacing: 0;
  font-size: 0.9rem; border: 1px solid var(--line); border-radius: 11px; overflow: hidden;
}
.doc thead th {
  background: var(--soft); color: var(--navy); font-weight: 600; text-align: left;
  padding: 11px 14px; border-bottom: 1px solid var(--line); white-space: nowrap;
}
.doc tbody td { padding: 11px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
.doc tbody tr:last-child td { border-bottom: 0; }
.doc tbody tr:hover td { background: var(--softer); }
.table-wrap { overflow-x: auto; margin: 0 0 22px; }
.table-wrap table { margin: 0; }

.doc img { max-width: 100%; height: auto; border-radius: 11px; border: 1px solid var(--line); }

.doc .admonition {
  margin: 0 0 22px; padding: 14px 18px;
  background: var(--blue-soft); border-left: 3px solid var(--navy); border-radius: 0 9px 9px 0;
}
.doc .admonition-title { font-weight: 600; color: var(--navy); margin: 0 0 6px; }
.doc .admonition p:last-child { margin: 0; }

/* ------------------------------------------------------------- home page */

.home .lede {
  font-size: 1.12rem; color: var(--muted); max-width: 620px; margin: 0 0 8px;
}
.home-group { margin-top: 46px; }
.home-group h2 {
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--muted-2); border: 0; padding: 0; margin: 0 0 16px;
}
.card-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.card-grid.solo { grid-template-columns: minmax(0, 1fr); }

/* Single-topic group: a full-width box carrying the brand gradient, so a
   deliberately-standalone section reads as emphasis rather than a stray card. */
.card.feature {
  padding: 22px 24px; gap: 6px;
  background: linear-gradient(180deg, var(--purple-sr), #fff 62%);
  border-color: #ead9fb;
}
.card.feature::before {
  content: ""; position: absolute; inset: 0 auto 0 0; width: 3px;
  background: var(--grad); border-radius: 12px 0 0 12px;
}
.card.feature { position: relative; overflow: hidden; }
.card.feature strong { font-size: 1.12rem; letter-spacing: -0.02em; }
.card.feature span {
  font-size: 0.9rem; color: var(--muted); -webkit-line-clamp: 3; max-width: 60ch;
}
.card {
  display: flex; flex-direction: column; gap: 4px;
  padding: 16px 18px; border: 1px solid var(--line); border-radius: 12px; background: #fff;
  transition: border-color .15s, box-shadow .15s, transform .15s;
}
.card:hover {
  border-color: var(--purple-2); transform: translateY(-2px);
  box-shadow: 0 4px 20px -6px rgba(99,34,166,0.18);
}
.card strong {
  font-weight: 600; font-size: 0.98rem; color: var(--navy); letter-spacing: -0.015em;
}
.card span {
  font-size: 0.855rem; color: var(--muted-2); line-height: 1.55;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}

/* ----------------------------------------------------------- prev / next */

.pn-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 14px;
  max-width: 780px; margin: 64px 0 0; padding-top: 28px; border-top: 1px solid var(--line);
}
.pn {
  display: flex; flex-direction: column; gap: 2px;
  padding: 14px 18px; border: 1px solid var(--line); border-radius: 12px;
  transition: border-color .15s, box-shadow .15s;
}
.pn:hover { border-color: var(--purple-2); box-shadow: 0 4px 18px -8px rgba(99,34,166,0.20); }
.pn span { font-size: 0.73rem; font-weight: 600; letter-spacing: 0.06em;
           text-transform: uppercase; color: var(--muted-2); }
.pn strong { font-weight: 600; font-size: 0.96rem; color: var(--navy); letter-spacing: -0.015em; }
.pn.next { text-align: right; }

.edit { max-width: 780px; margin-top: 22px; }
.edit a { font-size: 0.85rem; color: var(--muted-2); font-weight: 400; }
.edit a:hover { color: var(--purple); }

/* ---------------------------------------------------------------- search */

.modal {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(15,27,51,0.34); backdrop-filter: blur(3px);
  /* flex-start, not the default stretch — otherwise a one-hit result list
     still renders a full-height card. */
  display: flex; justify-content: center; align-items: flex-start;
  padding: 12vh 20px 20px;
}
.modal[hidden] { display: none; }
.modal-card {
  width: 100%; max-width: 620px; max-height: 66vh; display: flex; flex-direction: column;
  background: #fff; border-radius: 15px; overflow: hidden;
  box-shadow: 0 24px 70px -18px rgba(10,42,102,0.42);
}
.modal-top {
  display: flex; align-items: center; gap: 11px;
  padding: 15px 18px; border-bottom: 1px solid var(--line); color: var(--muted-2);
}
#search-input {
  flex: 1; border: 0; outline: 0; background: none;
  font-family: var(--sans); font-size: 1rem; font-weight: 400; color: var(--ink);
}
#search-input::placeholder { color: var(--muted-2); }
.modal-results { overflow-y: auto; padding: 8px; }
.sr {
  display: block; padding: 10px 13px; border-radius: 9px;
  border-bottom: 1px solid transparent;
}
.sr:hover, .sr.on { background: var(--purple-soft); }
.sr b { display: block; font-weight: 600; font-size: 0.94rem; color: var(--navy); }
.sr-sec { font-weight: 500; color: var(--purple); }
.sr i {
  display: block; font-style: normal; font-size: 0.68rem; font-weight: 600;
  letter-spacing: 0.07em; text-transform: uppercase; color: var(--muted-2); margin-bottom: 2px;
}
.sr em {
  display: block; font-style: normal; font-size: 0.845rem; color: var(--muted);
  line-height: 1.5; margin-top: 2px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.sr mark { background: #f7e6ff; color: var(--purple); border-radius: 3px; padding: 0 2px; }
.sr-empty { padding: 26px 16px; text-align: center; color: var(--muted-2); font-size: 0.9rem; }

/* ---------------------------------------------------------------- footer */

.foot { border-top: 1px solid var(--line); background: var(--softer); }
.foot-inner {
  max-width: 1440px; margin: 0 auto; padding: 22px;
  display: flex; flex-wrap: wrap; gap: 14px; align-items: center;
  font-size: 0.85rem; color: var(--muted-2);
}
.foot-right { margin-left: auto; display: flex; gap: 20px; align-items: center; }
.foot a { color: var(--muted); font-weight: 500; }
.foot a:hover { color: var(--purple); }
.foot-sha { font-family: var(--mono); font-size: 0.75rem; }

/* ------------------------------------------------------------ responsive */

@media (max-width: 1180px) {
  .shell { grid-template-columns: var(--side-w) minmax(0, 1fr); gap: 36px; }
  .toc { display: none; }
}

@media (max-width: 880px) {
  .shell { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .menu-btn { display: block; }
  .search-btn { min-width: 0; }
  .search-btn span, .search-btn kbd, .hdr-link, .brand-sep, .brand-docs { display: none; }

  .side {
    position: fixed; top: var(--hdr-h); left: 0; z-index: 45;
    width: 290px; height: calc(100vh - var(--hdr-h));
    background: #fff; border-right: 1px solid var(--line);
    padding: 22px 20px 60px; transform: translateX(-102%);
    transition: transform .22s ease; box-shadow: 0 18px 50px -20px rgba(10,42,102,0.4);
  }
  .side.open { transform: none; }
  .main { padding: 28px 0 70px; }
  .pn-row { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: minmax(0, 1fr); }
  .modal { padding: 8vh 14px 14px; }
  .foot-right { margin-left: 0; width: 100%; }
}

@media (max-width: 420px) {
  .hdr-ghost span { display: none; }
  .doc h2 { font-size: 1.28rem; }
}