:root {
  color-scheme: light;
  --bg: #f6f7f4;
  --panel: #ffffff;
  --text: #1f2933;
  --muted: #62717d;
  --line: #d7ded7;
  --accent: #0f766e;
  --accent-dark: #134e4a;
  --code-bg: #edf1ec;
  --shadow: 0 16px 36px rgba(31, 41, 51, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

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

.shell {
  display: grid;
  grid-template-columns: minmax(240px, 310px) minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  align-self: start;
  display: flex;
  min-height: 100vh;
  flex-direction: column;
  gap: 2rem;
  padding: 2rem 1.25rem;
  border-right: 1px solid var(--line);
  background: #fbfbf8;
}

.brand {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 0.875rem;
  align-items: center;
  color: inherit;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border-radius: 8px;
  background: var(--accent-dark);
  color: #ffffff;
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  line-height: 1.2;
}

.brand small {
  color: var(--muted);
}

.nav {
  display: grid;
  gap: 0.5rem;
}

.nav-link {
  display: grid;
  gap: 0.15rem;
  padding: 0.75rem 0.875rem;
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--text);
  text-decoration: none;
}

.nav-link small {
  color: var(--muted);
}

.nav-link:hover,
.nav-link:focus-visible {
  border-color: var(--line);
  background: #ffffff;
  outline: none;
}

.nav-link[aria-current="page"] {
  border-color: rgba(15, 118, 110, 0.28);
  background: rgba(15, 118, 110, 0.09);
  color: var(--accent-dark);
}

.main {
  width: min(100%, 960px);
  padding: clamp(2rem, 5vw, 4rem);
}

.page-header {
  margin-bottom: 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 0.35rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.page-header h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.25rem);
  line-height: 1.05;
}

.stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.stats span {
  padding: 0.35rem 0.6rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #ffffff;
  color: var(--muted);
  font-size: 0.9rem;
}

.markdown-body {
  max-width: 76ch;
  padding: clamp(1.25rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.markdown-body > :first-child {
  margin-top: 0;
}

.markdown-body > :last-child {
  margin-bottom: 0;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
  margin: 1.75em 0 0.55em;
  line-height: 1.2;
}

.markdown-body h1 {
  font-size: 2rem;
}

.markdown-body h2 {
  padding-bottom: 0.25rem;
  border-bottom: 1px solid var(--line);
  font-size: 1.45rem;
}

.markdown-body h3 {
  font-size: 1.15rem;
}

.markdown-body p,
.markdown-body ul,
.markdown-body ol,
.markdown-body blockquote,
.markdown-body pre,
.markdown-body table {
  margin: 0 0 1rem;
}

.markdown-body ul,
.markdown-body ol {
  padding-left: 1.35rem;
}

.markdown-body li + li {
  margin-top: 0.35rem;
}

.markdown-body blockquote {
  padding-left: 1rem;
  border-left: 4px solid var(--accent);
  color: var(--muted);
}

.markdown-body code {
  border-radius: 5px;
  background: var(--code-bg);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, ui-monospace, monospace;
  font-size: 0.92em;
}

.markdown-body :not(pre) > code {
  padding: 0.1rem 0.28rem;
}

.markdown-body pre {
  overflow-x: auto;
  padding: 1rem;
  border-radius: 8px;
  background: #18202a;
  color: #f7fafc;
}

.markdown-body pre code {
  padding: 0;
  background: transparent;
  color: inherit;
}

.markdown-body table {
  width: 100%;
  border-collapse: collapse;
}

.markdown-body th,
.markdown-body td {
  padding: 0.55rem;
  border: 1px solid var(--line);
  text-align: left;
}

.markdown-body th {
  background: #f0f3ee;
}

@media (max-width: 760px) {
  .shell {
    display: block;
  }

  .sidebar {
    position: static;
    min-height: auto;
    gap: 1rem;
    padding: 1rem;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .nav {
    grid-auto-flow: column;
    grid-auto-columns: minmax(150px, max-content);
    overflow-x: auto;
    padding-bottom: 0.2rem;
  }

  .main {
    padding: 1.25rem;
  }

  .markdown-body {
    padding: 1rem;
  }
}