:root {
  --ink: #18211f;
  --muted: #64716d;
  --paper: #f8f5ee;
  --paper-strong: #fffdf8;
  --line: #d7d0c2;
  --accent: #c53d13;
  --accent-2: #0c7667;
  --code: #1d2a27;
  --code-text: #eef8f1;
  --sidebar: #efe8da;
  --shadow: 0 24px 70px rgba(46, 37, 21, 0.14);
  --radius: 6px;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(90deg, rgba(197, 61, 19, 0.07) 1px, transparent 1px),
    linear-gradient(180deg, rgba(12, 118, 103, 0.05) 1px, transparent 1px),
    var(--paper);
  background-size: 42px 42px;
  font-family: ui-serif, Georgia, Cambria, "Times New Roman", serif;
}

a {
  color: var(--accent-2);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--accent);
}

.shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  padding: 24px 20px;
  background: color-mix(in srgb, var(--sidebar) 91%, white);
  border-right: 1px solid var(--line);
}

.brand {
  display: grid;
  gap: 10px;
  padding-bottom: 22px;
  border-bottom: 2px solid var(--ink);
}

.mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  color: var(--paper-strong);
  background: var(--ink);
  border-radius: var(--radius);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-weight: 800;
}

.brand h1 {
  margin: 0;
  font-size: 26px;
  line-height: 1;
  letter-spacing: 0;
}

.brand p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}

.search {
  width: 100%;
  margin: 20px 0 14px;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  background: var(--paper-strong);
  font: 14px ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.nav-section {
  margin: 18px 0 6px;
  color: var(--accent);
  font: 700 12px ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.nav a {
  display: block;
  padding: 8px 9px;
  border-radius: var(--radius);
  color: var(--ink);
  text-decoration: none;
  font-size: 15px;
  line-height: 1.25;
}

.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--paper-strong);
  background: var(--ink);
}

.content {
  min-width: 0;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: none;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: rgba(248, 245, 238, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.menu-button,
.copy-button {
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: var(--paper-strong);
  color: var(--ink);
  cursor: pointer;
  font: 700 12px ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.menu-button {
  padding: 8px 10px;
}

.topbar-title {
  font: 700 14px ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.doc {
  width: min(940px, calc(100% - 48px));
  margin: 0 auto;
  padding: 42px 0 96px;
}

.hero {
  margin-bottom: 38px;
  padding: 42px;
  color: var(--paper-strong);
  background:
    linear-gradient(135deg, rgba(12, 118, 103, 0.86), rgba(24, 33, 31, 0.96)),
    repeating-linear-gradient(135deg, transparent, transparent 12px, rgba(255, 255, 255, 0.08) 12px, rgba(255, 255, 255, 0.08) 13px);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 0 0 18px;
  font: 700 12px ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #f1c27b;
}

.hero h2 {
  max-width: 760px;
  margin: 0;
  color: var(--paper-strong);
  font-size: clamp(42px, 7vw, 82px);
  line-height: 0.92;
}

.hero p {
  max-width: 680px;
  margin: 22px 0 0;
  color: #e7efe9;
  font-size: 19px;
  line-height: 1.55;
}

.quick-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 0 0 34px;
}

.quick-card {
  min-height: 118px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper-strong);
  color: var(--ink);
  text-decoration: none;
  box-shadow: 0 10px 26px rgba(46, 37, 21, 0.08);
}

.quick-card strong {
  display: block;
  margin-bottom: 8px;
  font-size: 18px;
}

.quick-card span {
  display: block;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.35;
}

.quick-card:hover {
  border-color: var(--accent);
  color: var(--ink);
  transform: translateY(-1px);
}

.markdown {
  padding: 34px 42px 48px;
  background: rgba(255, 253, 248, 0.88);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.markdown h1,
.markdown h2,
.markdown h3,
.markdown h4 {
  letter-spacing: 0;
}

.markdown h1 {
  margin: 0 0 18px;
  font-size: 46px;
  line-height: 1;
}

.markdown h2 {
  margin: 44px 0 14px;
  padding-top: 10px;
  font-size: 31px;
  line-height: 1.08;
  border-top: 2px solid var(--line);
}

.markdown h3 {
  margin: 32px 0 12px;
  font-size: 22px;
}

.markdown h4 {
  margin: 24px 0 10px;
  font-size: 18px;
}

.markdown p,
.markdown li,
.markdown td,
.markdown th {
  font-size: 17px;
  line-height: 1.65;
}

.markdown p {
  margin: 12px 0;
}

.markdown ul,
.markdown ol {
  padding-left: 24px;
}

.markdown blockquote {
  margin: 22px 0;
  padding: 16px 20px;
  border-left: 4px solid var(--accent);
  background: #f2eadb;
}

.markdown table {
  width: 100%;
  margin: 20px 0;
  border-collapse: collapse;
  overflow: hidden;
  border: 1px solid var(--line);
}

.markdown th {
  background: #efe5d4;
  text-align: left;
}

.markdown th,
.markdown td {
  padding: 11px 12px;
  border: 1px solid var(--line);
  vertical-align: top;
}

.markdown :not(pre) > code {
  padding: 2px 5px;
  border-radius: 4px;
  background: #eadfca;
  color: #7b2b12;
  font: 0.88em ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.code-wrap {
  position: relative;
  margin: 22px 0;
}

pre {
  margin: 0;
  padding: 18px;
  overflow-x: auto;
  border-radius: var(--radius);
  background: var(--code);
  color: var(--code-text);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

pre code {
  font: 13px/1.55 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.copy-button {
  position: absolute;
  top: 8px;
  right: 8px;
  padding: 6px 8px;
  color: var(--code-text);
  border-color: rgba(255, 255, 255, 0.24);
  background: rgba(255, 255, 255, 0.1);
}

.page-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 24px;
  color: var(--muted);
  font: 13px ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.page-footer a {
  color: var(--muted);
}

.search-empty {
  display: none;
  padding: 10px;
  color: var(--muted);
  font-size: 14px;
}

body.searching .search-empty {
  display: block;
}

@media (max-width: 1060px) {
  .shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: fixed;
    z-index: 30;
    inset: 0 auto 0 0;
    width: min(340px, 86vw);
    transform: translateX(-100%);
    transition: transform 180ms ease;
    box-shadow: var(--shadow);
  }

  body.nav-open .sidebar {
    transform: translateX(0);
  }

  .topbar {
    display: flex;
  }

  .doc {
    width: min(100% - 28px, 940px);
    padding-top: 24px;
  }
}

@media (max-width: 760px) {
  .hero {
    padding: 28px 22px;
  }

  .hero h2 {
    font-size: 42px;
  }

  .quick-grid {
    grid-template-columns: 1fr;
  }

  .markdown {
    padding: 24px 20px 34px;
  }

  .markdown h1 {
    font-size: 34px;
  }

  .markdown h2 {
    font-size: 26px;
  }
}