:root {
  color-scheme: light dark;
  --bg: #fbfbf9;
  --bg-alt: #f2f3ef;
  --surface: #ffffff;
  --text: #1b1f1e;
  --muted: #59625f;
  --border: #dfe2dd;
  --accent: #0f766e;
  --accent-strong: #0b5c56;
  --accent-soft: #e3f1ee;
  --on-accent: #ffffff;
  --code-bg: #eef0ec;
  --syn-key: #0b5c56;
  --syn-str: #8a4510;
  --syn-comment: #59625f;
  --radius: 10px;
  --max: 68rem;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111514;
    --bg-alt: #161b1a;
    --surface: #1a201f;
    --text: #e6eae8;
    --muted: #9aa5a1;
    --border: #2a3230;
    --accent: #3cc0b0;
    --accent-strong: #67d4c6;
    --accent-soft: #15302c;
    --on-accent: #06201d;
    --code-bg: #212826;
    --syn-key: #67d4c6;
    --syn-str: #e2b878;
    --syn-comment: #9aa5a1;
  }
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent); text-underline-offset: 0.15em; }
a:hover { color: var(--accent-strong); }
a:focus-visible, .button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

code {
  font-family: var(--mono);
  font-size: 0.9em;
  background: var(--code-bg);
  padding: 0.1em 0.35em;
  border-radius: 4px;
  white-space: nowrap;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.skip {
  position: absolute;
  left: -999px;
  top: 0.5rem;
  background: var(--surface);
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
}
.skip:focus { left: 0.5rem; z-index: 10; }

/* Header */
.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 3.75rem;
  flex-wrap: wrap;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.brand img { width: 1.6rem; height: 1.6rem; }
.site-nav { display: flex; gap: 1.25rem; flex-wrap: wrap; }
.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--text); }

/* Hero */
.hero { padding: 5rem 0 4rem; }
.eyebrow {
  margin: 0 0 1rem;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.hero h1, .page-head h1 {
  margin: 0;
  max-width: 22ch;
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.12;
  letter-spacing: -0.025em;
  font-weight: 750;
}
.hero .lede, .page-head .lede {
  max-width: 40rem;
  margin: 1.25rem 0 2rem;
  color: var(--muted);
  font-size: 1.2rem;
}
.actions { display: flex; gap: 0.75rem; flex-wrap: wrap; }

.button {
  display: inline-block;
  padding: 0.7rem 1.25rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  border: 1px solid var(--accent);
  transition: background-color 0.15s, color 0.15s;
}
.button.primary { background: var(--accent); color: var(--on-accent); }
.button.primary:hover { background: var(--accent-strong); border-color: var(--accent-strong); color: var(--on-accent); }
.button.secondary { background: transparent; color: var(--accent); }
.button.secondary:hover { background: var(--accent-soft); color: var(--accent-strong); }

/* Sections */
section { padding: 4rem 0; }
section.alt { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
}
.section-intro {
  max-width: 42rem;
  margin: 0 0 2.5rem;
  color: var(--muted);
}
h3 {
  margin: 0 0 0.4rem;
  font-size: 1.075rem;
  line-height: 1.35;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr));
  gap: 1rem;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem 1.4rem;
}
.card p { margin: 0; color: var(--muted); font-size: 0.98rem; }

/* Two-column prose */
.split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
.split > * { min-width: 0; }
@media (min-width: 52rem) {
  .split { grid-template-columns: 1fr 1fr; gap: 3.5rem; }
}
.prose p { margin: 0 0 1rem; }
.prose p:last-child { margin-bottom: 0; }

.checklist {
  list-style: none;
  margin: 0;
  padding: 0;
}
.checklist li {
  position: relative;
  padding: 0 0 0 1.75rem;
  margin: 0 0 1rem;
}
.checklist li::before {
  content: "";
  position: absolute;
  left: 0.15rem;
  top: 0.5em;
  width: 0.8rem;
  height: 0.45rem;
  border-left: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
}
.checklist strong { color: var(--text); }

.note {
  margin-top: 2rem;
  padding: 1.1rem 1.25rem;
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.note p { margin: 0; }

.pricing {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 2rem;
  flex-wrap: wrap;
  margin-top: 2.5rem;
  padding: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.pricing p { margin: 0; }
.pricing .label { font-weight: 650; font-size: 1.1rem; }
.pricing .sub { color: var(--muted); font-size: 0.95rem; }

/* Contact */
.contact-block {
  font-size: 1.15rem;
}
.contact-block p { margin: 0 0 0.5rem; }
.contact-block .mail { font-size: 1.35rem; font-weight: 650; overflow-wrap: anywhere; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0 2.5rem;
  color: var(--muted);
  font-size: 0.9rem;
}
.site-footer p { margin: 0; }
.site-footer a { color: var(--muted); }
.site-footer a:hover { color: var(--text); }

/* Configuration page */
.page-head { padding: 4.5rem 0 3.5rem; }
.link-card { display: block; text-decoration: none; color: var(--text); transition: border-color 0.15s; }
.link-card:hover { border-color: var(--accent); color: var(--text); }
.link-card h3 { color: var(--accent); }

.file { margin: 0 0 1.75rem; min-width: 0; }
.file figcaption {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0 0 0.4rem;
}
pre {
  margin: 0;
  padding: 1rem 1.15rem;
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.85rem;
  line-height: 1.55;
  tab-size: 2;
}
pre code {
  font-size: inherit;
  background: none;
  padding: 0;
  border-radius: 0;
  white-space: pre;
}
.prose pre { margin: 0 0 1rem; }
pre .k { color: var(--syn-key); }
pre .s { color: var(--syn-str); }
pre .c { color: var(--syn-comment); font-style: italic; }

.points {
  max-width: 46rem;
  margin: 0;
  padding: 0 0 0 1.25rem;
}
.points li { margin: 0 0 0.6rem; }
.points li::marker { color: var(--accent); }
.points code { white-space: normal; }
.points code.nb { white-space: nowrap; }
.file.run { margin-top: 2.5rem; }
.file.run figcaption { font-family: var(--font); font-size: 0.9rem; }

/* 404 */
.notfound {
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.notfound h1 { font-size: clamp(2rem, 5vw, 3rem); margin: 0 0 0.5rem; letter-spacing: -0.02em; }
.notfound p { color: var(--muted); margin: 0 0 1.5rem; }

@media (max-width: 30rem) {
  body { font-size: 1rem; }
  .wrap { padding: 0 1rem; }
  .hero, .page-head { padding: 3.25rem 0 2.75rem; }
  pre { font-size: 0.8rem; padding: 0.85rem 0.9rem; }
  section { padding: 3rem 0; }
  .site-nav { gap: 1rem; }
  .button { flex: 1 1 auto; text-align: center; }
}