:root {
  --font-sans: "Sora", ui-sans-serif, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --bg: #f7f8f6;
  --bg-elevated: #ffffff;
  --bg-code: #121816;
  --fg: #152019;
  --fg-muted: #5a675f;
  --border: #d7ddd8;
  --accent: #0f8f6b;
  --accent-soft: rgba(15, 143, 107, 0.12);
  --sidebar-w: 16.5rem;
  --topbar-h: 3.5rem;
  --radius: 0.65rem;
  --shadow: 0 1px 0 rgba(21, 32, 25, 0.04);
}

html[data-theme="dark"] {
  --bg: #0d1210;
  --bg-elevated: #151c18;
  --bg-code: #0a0f0d;
  --fg: #e8efe9;
  --fg-muted: #9aaba0;
  --border: #2a3630;
  --accent: #3dcea0;
  --accent-soft: rgba(61, 206, 160, 0.14);
  --shadow: 0 1px 0 rgba(0, 0, 0, 0.35);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--topbar-h) + 1rem);
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--fg);
  background:
    radial-gradient(1200px 480px at 10% -10%, rgba(15, 143, 107, 0.08), transparent 55%),
    radial-gradient(900px 420px at 100% 0%, rgba(21, 32, 25, 0.05), transparent 50%),
    var(--bg);
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  text-decoration: none;
}

code,
pre {
  font-family: var(--font-mono);
}

code {
  font-size: 0.9em;
  padding: 0.12em 0.35em;
  border-radius: 0.3rem;
  background: var(--accent-soft);
  color: var(--fg);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0.5rem;
  z-index: 100;
  padding: 0.5rem 0.75rem;
  background: var(--fg);
  color: var(--bg);
}

.skip-link:focus {
  left: 0.5rem;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: var(--topbar-h);
  padding: 0 1.25rem;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg-elevated) 92%, transparent);
  backdrop-filter: blur(10px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--fg);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 1.55rem;
  height: 1.55rem;
  border-radius: 0.4rem;
  background:
    linear-gradient(135deg, var(--accent), #1f6f55 55%, #24352c);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.15);
}

.brand-name {
  font-size: 1.05rem;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.ghost-link,
.theme-toggle,
.primary-link,
.copy-btn {
  font: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: 999px;
  cursor: pointer;
}

.ghost-link,
.theme-toggle {
  color: var(--fg-muted);
  text-decoration: none;
  background: transparent;
  border: 1px solid transparent;
  padding: 0.4rem 0.75rem;
}

.ghost-link:hover,
.theme-toggle:hover {
  color: var(--fg);
  border-color: var(--border);
  background: var(--bg-elevated);
}

.primary-link {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 0.95rem;
  color: #04140f;
  background: var(--accent);
  text-decoration: none;
  border: 1px solid color-mix(in srgb, var(--accent) 70%, #000);
}

.primary-link:hover {
  filter: brightness(1.05);
}

.layout {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  gap: 0;
  max-width: 72rem;
  margin: 0 auto;
  min-height: calc(100vh - var(--topbar-h));
}

.sidebar {
  position: sticky;
  top: var(--topbar-h);
  align-self: start;
  height: calc(100vh - var(--topbar-h));
  overflow: auto;
  padding: 1.5rem 1rem 2rem 1.25rem;
  border-right: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg-elevated) 70%, transparent);
}

.sidebar-label {
  margin: 0 0 0.75rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
}

.toc {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.toc a {
  display: block;
  padding: 0.35rem 0.55rem;
  border-radius: 0.4rem;
  color: var(--fg-muted);
  text-decoration: none;
  font-size: 0.9rem;
  border-left: 2px solid transparent;
}

.toc a:hover,
.toc a[aria-current="true"] {
  color: var(--fg);
  background: var(--accent-soft);
  border-left-color: var(--accent);
}

.content {
  padding: 2.25rem 1.75rem 4rem;
  max-width: 48rem;
}

.eyebrow {
  margin: 0 0 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
}

h1 {
  margin: 0 0 0.85rem;
  font-size: clamp(2.2rem, 4vw, 3rem);
  line-height: 1.1;
  letter-spacing: -0.035em;
  font-weight: 700;
}

.lede {
  margin: 0 0 1.25rem;
  font-size: 1.125rem;
  color: var(--fg-muted);
  max-width: 40rem;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
}

.meta-chip {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg-elevated);
  color: var(--fg);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 500;
  box-shadow: var(--shadow);
}

.meta-chip.muted {
  color: var(--fg-muted);
}

section {
  margin: 0 0 2.75rem;
  padding-top: 0.25rem;
}

h2 {
  margin: 0 0 0.85rem;
  font-size: 1.55rem;
  letter-spacing: -0.025em;
  line-height: 1.2;
}

h3 {
  margin: 1.35rem 0 0.55rem;
  font-size: 1.05rem;
  letter-spacing: -0.015em;
}

section > p,
.note {
  color: var(--fg-muted);
}

.note {
  margin-top: 1rem;
  font-size: 0.92rem;
}

.code-block {
  margin: 1rem 0 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-code);
  box-shadow: var(--shadow);
}

.code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.55rem 0.85rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  color: #aebdb4;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.copy-btn {
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.04);
  color: #d7e4dc;
  padding: 0.25rem 0.6rem;
}

.copy-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}

.code-block pre,
.card pre {
  margin: 0;
  padding: 1rem 1.05rem;
  overflow-x: auto;
  color: #e7f2eb;
  font-size: 0.86rem;
  line-height: 1.55;
}

.card pre {
  border-radius: calc(var(--radius) - 2px);
  background: var(--bg-code);
}

.code-block code,
.card pre code {
  padding: 0;
  background: transparent;
  color: inherit;
}

.steps {
  margin: 1rem 0 1.5rem;
  padding-left: 1.2rem;
  color: var(--fg-muted);
}

.steps li {
  margin: 0.35rem 0;
}

.defs {
  display: grid;
  gap: 0.85rem;
  margin: 1rem 0 0;
}

.defs > div {
  padding: 0.9rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
  box-shadow: var(--shadow);
}

.defs dt {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.defs dd {
  margin: 0;
  color: var(--fg-muted);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 0.85rem;
  margin-top: 1rem;
}

.card {
  padding: 1rem 1.05rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
  box-shadow: var(--shadow);
}

.card h3 {
  margin: 0 0 0.45rem;
}

.card p,
.card ul {
  margin: 0;
  color: var(--fg-muted);
  font-size: 0.95rem;
}

.card ul {
  padding-left: 1.1rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
  font-size: 0.94rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

th,
td {
  text-align: left;
  padding: 0.7rem 0.85rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

th {
  background: color-mix(in srgb, var(--accent-soft) 70%, var(--bg-elevated));
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--fg-muted);
}

tr:last-child td {
  border-bottom: 0;
}

.plain-list {
  margin: 0.75rem 0 0;
  padding-left: 1.15rem;
  color: var(--fg-muted);
}

.site-footer {
  margin-top: 3rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  color: var(--fg-muted);
  font-size: 0.9rem;
}

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

@media (max-width: 880px) {
  .layout {
    grid-template-columns: 1fr;
  }

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

  .toc {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.2rem 0.5rem;
  }

  .content {
    padding: 1.5rem 1.1rem 3rem;
  }
}

@media (max-width: 560px) {
  .topbar-actions .ghost-link {
    display: none;
  }

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