/*
 * difuzio.org -- hand-written stylesheet.
 *
 * No framework, no CDN, no build step: a project about self-hosting should not
 * pull a third party into every page view. Light and dark themes, one file.
 */

:root {
  --ink: #16202c;
  --ink-soft: #4a5a6b;
  --ink-faint: #74848f;
  --bg: #ffffff;
  --bg-soft: #f5f7fa;
  --bg-sunk: #eceff4;
  --line: #dde3ea;
  --brand: #1f5f8b;
  --brand-strong: #164a6e;
  --brand-soft: #e8f1f7;
  --accent: #b4531f;
  --code-bg: #131b24;
  --code-ink: #e6edf3;
  --radius: 10px;
  --wrap: 66rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e7edf3;
    --ink-soft: #b3c0cc;
    --ink-faint: #8d9aa6;
    --bg: #10161d;
    --bg-soft: #161e27;
    --bg-sunk: #1d2833;
    --line: #2a3742;
    --brand: #6bb3dd;
    --brand-strong: #96cdec;
    --brand-soft: #17242e;
    --accent: #e08b57;
    --code-bg: #0b1117;
  }
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

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

.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 10;
  background: var(--bg);
  border: 2px solid var(--brand);
  border-radius: var(--radius);
  padding: 0.5rem 0.9rem;
}

/* --------------------------------------------------------------- header --- */

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 0.9rem;
  padding-bottom: 0.9rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: inherit;
}
.brand:hover { text-decoration: none; }

.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-name { font-size: 1.35rem; font-weight: 700; letter-spacing: -0.01em; }
.brand-tag { font-size: 0.78rem; color: var(--ink-faint); }

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  display: block;
  padding: 0.35rem 0.7rem;
  border-radius: var(--radius);
  color: var(--ink-soft);
  font-size: 0.95rem;
}
.site-nav a:hover { background: var(--bg-soft); color: var(--ink); text-decoration: none; }
.site-nav a[aria-current="page"] { background: var(--brand-soft); color: var(--brand-strong); font-weight: 600; }

.site-nav .lang { margin-left: 0.4rem; }
.site-nav .lang a {
  border: 1px solid var(--line);
  font-size: 0.85rem;
}

/* ----------------------------------------------------------------- hero --- */

.hero {
  background: var(--bg-soft);
  border-bottom: 1px solid var(--line);
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
  padding-top: 3.2rem;
  padding-bottom: 3.2rem;
}

@media (min-width: 60rem) {
  .hero-inner { grid-template-columns: 1.05fr 0.95fr; align-items: center; }
}

.hero h1 {
  margin: 0 0 0.8rem;
  font-size: clamp(1.85rem, 1.2rem + 2vw, 2.5rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.hero .lead {
  margin: 0 0 1.5rem;
  font-size: 1.12rem;
  color: var(--ink-soft);
  max-width: 34rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin: 0 0 1rem;
}

.hero-note {
  margin: 0;
  font-size: 0.9rem;
  color: var(--ink-faint);
}

.button {
  display: inline-block;
  padding: 0.62rem 1.15rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--ink);
  font-weight: 600;
  font-size: 0.98rem;
}
.button:hover { text-decoration: none; border-color: var(--brand); color: var(--brand-strong); }

.button.primary {
  background: var(--brand);
  border-color: var(--brand);
  color: #ffffff;
}
.button.primary:hover { background: var(--brand-strong); border-color: var(--brand-strong); color: #ffffff; }

/* The hero code block lives outside .prose, so it carries the same code styling
   explicitly. The install session is the widest content of the page: a smaller
   size keeps it inside its column instead of relying on horizontal scrolling. */
.hero-aside pre {
  margin: 0;
  padding: 1rem 1.15rem;
  background: var(--code-bg);
  border-radius: var(--radius);
  overflow-x: auto;
  box-shadow: 0 12px 30px rgba(9, 20, 32, 0.18);
}

.hero-aside pre code {
  color: var(--code-ink);
  font-size: 0.78rem;
  line-height: 1.6;
  font-family: ui-monospace, "SFMono-Regular", "JetBrains Mono", Consolas, monospace;
}

.hero-aside p { font-size: 0.9rem; color: var(--ink-faint); }

/* ----------------------------------------------------------------- main --- */

main { padding: 3.2rem 1.25rem 3.5rem; }

.prose { max-width: 46rem; }
.home .prose { max-width: none; }

.prose h1 {
  margin: 0 0 1rem;
  font-size: clamp(1.7rem, 1.2rem + 1.6vw, 2.3rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.prose h2 {
  margin: 2.6rem 0 0.9rem;
  font-size: 1.4rem;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.prose h3 {
  margin: 1.8rem 0 0.5rem;
  font-size: 1.1rem;
}

.prose p { margin: 0.9rem 0; }
.prose ul, .prose ol { margin: 0.9rem 0; padding-left: 1.4rem; }
.prose li { margin: 0.35rem 0; }
.prose li > p { margin: 0.3rem 0; }

.prose strong { font-weight: 650; }

.prose hr {
  margin: 2.5rem 0;
  border: 0;
  border-top: 1px solid var(--line);
}

.prose blockquote {
  margin: 1.3rem 0;
  padding: 0.8rem 1.1rem;
  border-left: 3px solid var(--brand);
  background: var(--brand-soft);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--ink-soft);
}
.prose blockquote p:first-child { margin-top: 0; }
.prose blockquote p:last-child { margin-bottom: 0; }

.prose code {
  background: var(--bg-sunk);
  padding: 0.12em 0.38em;
  border-radius: 5px;
  font-size: 0.88em;
  font-family: ui-monospace, "SFMono-Regular", "JetBrains Mono", Consolas, monospace;
}

.prose pre {
  margin: 1.3rem 0;
  padding: 1rem 1.15rem;
  background: var(--code-bg);
  border-radius: var(--radius);
  overflow-x: auto;
}

.prose pre code {
  background: none;
  padding: 0;
  color: var(--code-ink);
  font-size: 0.86rem;
  line-height: 1.6;
}

.prose table {
  width: 100%;
  margin: 1.3rem 0;
  border-collapse: collapse;
  font-size: 0.94rem;
}
.prose th, .prose td {
  padding: 0.55rem 0.7rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
.prose thead th {
  background: var(--bg-soft);
  font-weight: 650;
}

/* Card grids: "## Title {.cards}" turns the list right after it into cards. */
.prose h2.cards + ul,
.prose h2.steps + ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 1rem;
  margin: 1.4rem 0;
  padding: 0;
  list-style: none;
}

.prose h2.cards + ul > li,
.prose h2.steps + ul > li {
  margin: 0;
  padding: 1.1rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-soft);
}

.prose h2.cards + ul > li > strong,
.prose h2.steps + ul > li > strong {
  display: block;
  margin-bottom: 0.3rem;
  color: var(--brand-strong);
  font-size: 1.02rem;
}

.prose h2.steps + ul {
  counter-reset: step;
}
.prose h2.steps + ul > li > strong::before {
  counter-increment: step;
  content: counter(step) ". ";
  color: var(--ink-faint);
}

/* Lead paragraph: "Text {.lead}" right under a heading. */
.prose p.lead {
  font-size: 1.1rem;
  color: var(--ink-soft);
}

/* --------------------------------------------------------------- footer --- */

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--bg-soft);
  padding: 1.6rem 0;
  font-size: 0.9rem;
  color: var(--ink-faint);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.5rem;
  justify-content: space-between;
  align-items: baseline;
}

.footer-links { margin: 0; display: flex; gap: 1.2rem; flex-wrap: wrap; }
.footer-legal { margin: 0; }