:root {
  --bg: #fdfdfc;
  --fg: #1f2328;
  --muted: #5f6670;
  --accent: #2d5bd3;
  --accent-soft: #e8eefc;
  --brand: #b5690a;        /* Seecr orange, darkened to read on white */
  --brand-logo: #faa21b;   /* Seecr orange as in the logo */
  --brand-soft: #fdf3e4;
  --border: #dde1e6;
  --code-bg: #f4f5f7;
  --news-bg: #fff6d9;
  --news-border: #e9cf73;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, "DejaVu Sans Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15171a;
    --fg: #e4e6e9;
    --muted: #9aa1aa;
    --accent: #7ea2ff;
    --accent-soft: #1e2840;
    --brand: #faa21b;
    --brand-soft: #2a2114;
    --border: #2c3036;
    --code-bg: #1d2024;
    --news-bg: #2b2614;
    --news-border: #6b5a22;
  }
}

* { box-sizing: border-box; }

html { font-size: 17px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  line-height: 1.6;
}

main, .site-header, .site-footer {
  max-width: 46rem;
  margin: 0 auto;
  padding: 0 16px;
}

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

/* header */
.site-header {
  text-align: center;
  padding-top: 3rem;
  padding-bottom: 1.5rem;
}
.logo {
  display: inline-block;
  font-family: var(--mono);
  font-size: clamp(3rem, 12vw, 5.5rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  color: var(--fg);
  text-decoration: none;
  line-height: 1.1;
}
.logo .brace { color: var(--brand-logo); font-weight: 400; }
.tagline {
  display: block;
  font-style: italic;
  color: var(--muted);
  margin-top: 0.25rem;
}
.site-header nav {
  margin-top: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.4rem 1.25rem;
  font-family: var(--mono);
  font-size: 0.95rem;
}
.site-header nav a { text-decoration: none; }
.site-header nav a:hover { text-decoration: underline; }
.pdf-link {
  border: 1px solid var(--accent);
  border-radius: 4px;
  padding: 0 0.5rem;
}

/* news banner */
.news {
  background: var(--news-bg);
  border: 1px solid var(--news-border);
  border-radius: 6px;
  padding: 0.75rem 1rem;
  margin: 0.5rem 0 1.5rem;
  font-size: 0.95rem;
}
.news p { margin: 0; }

/* content */
h1, h2, h3 { line-height: 1.25; color: var(--brand); }
h2 {
  font-family: var(--mono);
  font-weight: 600;
  font-size: 1.35rem;
  margin: 2.75rem 0 0.75rem;
  padding-bottom: 0.3rem;
  border-bottom: 1px solid var(--border);
}
h3 { font-size: 1.1rem; margin: 2rem 0 0.5rem; }

code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: var(--code-bg);
  padding: 0.1em 0.3em;
  border-radius: 3px;
}
pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.9rem 1rem;
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.5;
}
pre code { background: none; padding: 0; font-size: inherit; }
.highlight pre { background: var(--code-bg) !important; }

table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.9rem;
  margin: 1rem 0;
  display: block;
  overflow-x: auto;
}
th, td {
  border: 1px solid var(--border);
  padding: 0.4rem 0.6rem;
  text-align: left;
  vertical-align: top;
}
th { background: var(--code-bg); }

/* features */
.features dt {
  font-family: var(--mono);
  font-weight: 600;
  margin-top: 1rem;
  color: var(--brand);
}
.features dd { margin: 0.15rem 0 0 0; }

/* doc cards */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 0.9rem;
  margin: 1rem 0;
}
.card {
  display: block;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.9rem 1rem;
  text-decoration: none;
  color: var(--fg);
  transition: border-color 0.15s, background 0.15s;
}
.card:hover { border-color: var(--brand); background: var(--brand-soft); }
.card strong { display: block; font-family: var(--mono); color: var(--brand); margin-bottom: 0.25rem; }
.card span { font-size: 0.92rem; color: var(--muted); }
.card-pdf strong::after { content: " ↓"; }

/* closing quote */
.quote {
  margin: 4rem 0 0;
  text-align: center;
}
.quote blockquote {
  margin: 0;
  font-size: 1.35rem;
  font-style: italic;
  line-height: 1.4;
}
.quote blockquote::before { content: "\201C"; color: var(--accent); }
.quote blockquote::after { content: "\201D"; color: var(--accent); }
.quote figcaption {
  margin-top: 0.5rem;
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--muted);
}

/* reference page */
.doc-meta {
  font-family: var(--mono);
  font-size: 0.9rem;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.75rem;
}
.doc h1 { font-family: var(--mono); font-size: 2rem; }

/* footer */
.site-footer {
  margin-top: 4rem;
  padding-top: 1.25rem;
  padding-bottom: 3rem;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}
.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.3rem 1rem;
  font-family: var(--mono);
}

/* Seecr logo in the footer: grey and quiet, in colour on hover */
.site-footer .seecr {
  display: inline-block;
  margin-top: 1.5rem;
}
.site-footer .seecr img {
  display: block;
  height: 20px;
  width: auto;
  filter: grayscale(1);
  opacity: 0.55;
  transition: filter 0.2s, opacity 0.2s;
}
.site-footer .seecr:hover img { filter: none; opacity: 1; }
@media (prefers-color-scheme: dark) {
  .site-footer .seecr img { filter: grayscale(1) invert(1); opacity: 0.6; }
  .site-footer .seecr:hover img { filter: none; opacity: 1; }
}