@import url('https://fonts.googleapis.com/css2?family=Geist:wght@100..900&family=Geist+Mono:wght@100..900&display=swap');

/* ═══════════════════════════════════════════════════════════════════════════
   Sex Microkernel — Documentation Style
   Derived from <https://github.com/xirtus/pretext>
   Sepia Light + Sepia Darkmode
   ═══════════════════════════════════════════════════════════════════════════ */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  color-scheme: dark;
  --page:       #000000;
  --page-alt:   #0a0a0a;
  --panel:      #11111b;
  --panel-hover:#181825;
  --ink:        #fab387;
  --ink-alt:    #eba0ac;
  --muted:      #eba0ac;
  --rule:       #313244;
  --rule-light: #45475a;
  --accent:     #cba6f7;
  --accent-dim: #b4befe;
  --accent-bg:  rgba(203, 166, 247, 0.10);
  --code-bg:    #181825;
  --code-ink:   #fab387;
  --shadow-sm:  0 1px 3px rgba(0, 0, 0, 0.40);
  --shadow-md:  0 8px 24px rgba(0, 0, 0, 0.50);
  --shadow-lg:  0 18px 40px rgba(0, 0, 0, 0.60);
  --tag-bg:     #313244;
  --tag-ink:    #eba0ac;
  --success:    #a6e3a1;
  --warn:       #f9e2af;
  --table-stripe:#181825;
  --overlay:    rgba(0, 0, 0, 0.85);
}

html {
  font-size: 17px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--page);
  color: var(--ink);
  font-family: 'Geist', system-ui, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.page {
  width: min(960px, calc(100vw - 36px));
  margin: 0 auto;
  padding: 40px 0 64px;
}

.page--wide {
  width: min(1140px, calc(100vw - 36px));
}

@media (max-width: 760px) {
  .page { width: min(100vw - 22px, 960px); padding: 24px 0 48px; }
  .page--wide { width: min(100vw - 22px, 1140px); }
}

.eyebrow {
  margin: 0 0 8px;
  font: 12px/1.2 'Geist Mono', ui-monospace, monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.eyebrow a { color: inherit; text-decoration: none; }
.eyebrow a:hover { text-decoration: underline; }

h1 {
  margin: 0;
  font: 700 34px/1.08 'Geist', sans-serif;
  color: var(--ink);
}

h2 {
  margin: 36px 0 12px;
  font: 600 24px/1.2 'Geist', sans-serif;
  color: var(--ink);
}

h3 {
  margin: 28px 0 10px;
  font: 600 19px/1.25 'Geist', sans-serif;
  color: var(--ink-alt);
}

h4 {
  margin: 20px 0 8px;
  font: 600 16px/1.3 'Geist', sans-serif;
  color: var(--muted);
}

p { margin: 0 0 14px; line-height: 1.6; }

.intro {
  margin: 10px 0 0;
  max-width: 64ch;
  line-height: 1.55;
  color: var(--muted);
  font-size: 1.05rem;
}

strong, b { font-weight: 600; color: var(--ink-alt); }

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 120ms ease;
}

a:hover { text-decoration: underline; color: var(--accent-dim); }

code {
  font-family: 'Geist Mono', ui-monospace, monospace;
  font-size: 0.88em;
  padding: 0.15em 0.4em;
  border-radius: 5px;
  background: var(--code-bg);
  color: var(--code-ink);
  white-space: pre-wrap;
  word-break: break-word;
}

pre {
  margin: 16px 0;
  padding: 18px 20px;
  border: 1px solid var(--rule);
  border-radius: 12px;
  background: var(--code-bg);
  overflow-x: auto;
  font-size: 0.84rem;
  line-height: 1.55;
}

pre code {
  padding: 0;
  background: transparent;
  font-size: inherit;
  color: var(--code-ink);
}

blockquote {
  margin: 16px 0;
  padding: 14px 18px;
  border-left: 3px solid var(--accent);
  background: var(--accent-bg);
  border-radius: 0 8px 8px 0;
  color: var(--ink-alt);
}

blockquote p:last-child { margin-bottom: 0; }

ul, ol { margin: 10px 0 16px; padding-left: 24px; }
li { margin-bottom: 6px; line-height: 1.55; }
li > ul, li > ol { margin-top: 6px; margin-bottom: 6px; }

hr { margin: 32px 0; border: 0; border-top: 1px solid var(--rule); }

table {
  width: 100%;
  margin: 16px 0;
  border-collapse: collapse;
  font-size: 0.94rem;
}

thead { border-bottom: 2px solid var(--rule); }

th {
  padding: 10px 14px;
  text-align: left;
  font-weight: 600;
  font-size: 0.88rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--muted);
}

td { padding: 10px 14px; border-bottom: 1px solid var(--rule-light); }
tbody tr:nth-child(even) { background: var(--table-stripe); }

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 28px;
}

.card-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

@media (max-width: 760px) {
  .card-grid, .card-grid--3 { grid-template-columns: 1fr; }
}

.card {
  display: block;
  padding: 22px 24px;
  border: 1px solid var(--rule);
  border-radius: 20px;
  background: var(--panel);
  color: inherit;
  text-decoration: none;
  box-shadow: var(--shadow-md);
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--accent) 35%, var(--rule) 65%);
  box-shadow: var(--shadow-lg);
}

.card h2 { margin: 0; font: 600 20px/1.2 'Geist', sans-serif; }
.card h3 { margin: 0; font: 600 17px/1.2 'Geist', sans-serif; color: var(--ink); }
.card p { margin: 10px 0 0; line-height: 1.5; color: var(--muted); font-size: 0.94rem; }
.card .card-meta { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }

.tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 100px;
  font: 11px/1.3 'Geist Mono', ui-monospace, monospace;
  background: var(--tag-bg);
  color: var(--tag-ink);
  letter-spacing: 0.02em;
}

.tag--accent { background: var(--accent-bg); color: var(--accent); }
.tag--done { background: rgba(91, 140, 90, 0.12); color: var(--success); }
.tag--wip { background: rgba(176, 132, 60, 0.12); color: var(--warn); }

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  margin-bottom: 10px;
}

.site-nav__logo {
  font: 700 18px/1 'Geist', sans-serif;
  color: var(--accent);
  text-decoration: none;
}

.site-nav__links { display: flex; gap: 4px; align-items: center; flex-wrap: wrap; }

.site-nav__links a {
  padding: 6px 14px;
  border-radius: 10px;
  font-size: 0.9rem;
  color: var(--muted);
  text-decoration: none;
  transition: background 120ms ease, color 120ms ease;
}

.site-nav__links a:hover,
.site-nav__links a.active {
  background: var(--accent-bg);
  color: var(--accent);
  text-decoration: none;
}

.theme-toggle {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--rule);
  border-radius: 10px;
  background: var(--panel);
  cursor: pointer;
  font-size: 1.1rem;
  color: var(--muted);
  transition: all 120ms ease;
  flex-shrink: 0;
}

.theme-toggle:hover { border-color: var(--accent); color: var(--accent); }

.site-footer {
  margin-top: 48px;
  padding: 28px 0;
  border-top: 1px solid var(--rule);
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}

.site-footer a { color: var(--accent); }

.doc-content { margin-top: 28px; }
.doc-content h2 { padding-bottom: 8px; border-bottom: 1px solid var(--rule-light); }
.doc-content h3 { margin-top: 32px; }
.doc-content img { max-width: 100%; height: auto; border-radius: 8px; }

.toc {
  padding: 18px 22px;
  margin: 20px 0 28px;
  border: 1px solid var(--rule);
  border-radius: 14px;
  background: var(--panel);
  box-shadow: var(--shadow-sm);
}

.toc__title {
  font-weight: 600;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin-bottom: 10px;
}

.toc ol { margin: 0; padding-left: 20px; }
.toc li { margin-bottom: 4px; font-size: 0.93rem; }
.toc a { color: var(--ink-alt); }
.toc a:hover { color: var(--accent); }

.callout {
  margin: 18px 0;
  padding: 16px 20px;
  border-radius: 12px;
  border: 1px solid var(--rule);
  font-size: 0.94rem;
}

.callout--info {
  background: rgba(149, 95, 59, 0.06);
  border-color: color-mix(in srgb, var(--accent) 30%, var(--rule) 70%);
}

.callout--warn {
  background: rgba(176, 132, 60, 0.08);
  border-color: color-mix(in srgb, var(--warn) 30%, var(--rule) 70%);
}

.callout--success {
  background: rgba(91, 140, 90, 0.08);
  border-color: color-mix(in srgb, var(--success) 30%, var(--rule) 70%);
}

.callout__title {
  font-weight: 600;
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 6px;
  color: var(--muted);
}

.search-bar { margin: 20px 0; }

.search-bar input {
  width: 100%;
  padding: 12px 18px;
  border: 1px solid var(--rule);
  border-radius: 14px;
  background: var(--panel);
  color: var(--ink);
  font: 16px/1.4 'Geist', system-ui, sans-serif;
  box-shadow: var(--shadow-sm);
  transition: border-color 120ms ease, box-shadow 120ms ease;
}

.search-bar input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: var(--shadow-md), 0 0 0 3px var(--accent-bg);
}

.search-bar input::placeholder { color: var(--muted); }

.checklist { list-style: none; padding-left: 0; }
.checklist li { padding-left: 24px; position: relative; }
.checklist li::before { content: "☐"; position: absolute; left: 0; color: var(--muted); }
.checklist li.done::before { content: "☑"; color: var(--success); }

.hero { padding: 24px 0 10px; }
.hero h1 { font-size: 40px; line-height: 1.1; margin-bottom: 8px; }
.hero .subtitle { font: 400 17px/1.5 'Geist', sans-serif; color: var(--muted); max-width: 60ch; }

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: middle;
}

.status-dot--done { background: var(--success); }
.status-dot--wip { background: var(--warn); }
.status-dot--planned { background: var(--rule); }

.breadcrumb {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 18px;
}

.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { margin: 0 6px; color: var(--rule); }

.with-sidebar {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

.sidebar {
  position: sticky;
  top: 20px;
  padding: 18px 0;
}

.sidebar nav a {
  display: block;
  padding: 6px 12px;
  margin-bottom: 2px;
  border-radius: 8px;
  font-size: 0.9rem;
  color: var(--muted);
  text-decoration: none;
  transition: all 100ms ease;
}

.sidebar nav a:hover,
.sidebar nav a.active {
  background: var(--accent-bg);
  color: var(--accent);
}

@media (max-width: 800px) {
  .with-sidebar { grid-template-columns: 1fr; gap: 10px; }
  .sidebar { position: static; padding: 0 0 16px; }
  .sidebar nav { display: flex; flex-wrap: wrap; gap: 2px; }
}

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