/* basdeveer.com — colors and type follow the book cover:
   ink-dark ground, cream text, REDCap red accent, a faint grid lattice. */

:root {
  --bg: #f6f1e7;
  --surface: #fffdf8;
  --text: #1b1f22;
  --muted: #5d5a54;
  --accent: #b5402e;
  --rule: #e2d9c8;
  --grid: rgba(27, 31, 34, 0.045);

  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #151a1d;
    --surface: #1c2226;
    --text: #ece4d4;
    --muted: #a9a294;
    --accent: #e8634d;
    --rule: #2c3337;
    --grid: rgba(236, 228, 212, 0.045);
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background-color: var(--bg);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 32px 32px;
  color: var(--text);
  font-family: var(--serif);
  font-size: 1.125rem;
  line-height: 1.6;
}

a { color: var(--accent); text-underline-offset: 0.18em; }
a:hover { text-decoration-thickness: 2px; }

.wrap {
  max-width: 60rem;
  margin: 0 auto;
  padding: 0 16px;
}

/* Header / footer */

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--rule);
}

.site-name {
  font-size: 1.25rem;
  color: var(--text);
  text-decoration: none;
}

.site-nav { display: flex; gap: 1.25rem; }

.site-nav a,
.kicker,
.meta {
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.site-nav a { color: var(--muted); text-decoration: none; }
.site-nav a:hover,
.site-nav a[aria-current="page"] { color: var(--accent); }

.site-footer {
  margin-top: 4rem;
  padding: 2rem 0 3rem;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer p { margin: 0 0 0.75rem; }

/* Book block */

.book {
  display: grid;
  grid-template-columns: minmax(0, 18rem) minmax(0, 1fr);
  gap: 3rem;
  align-items: start;
  padding: 3.5rem 0 1rem;
}

.book-cover img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 3px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2), 0 12px 32px rgba(0, 0, 0, 0.25);
}

.kicker { color: var(--accent); margin: 0 0 0.75rem; }

h1, h2, h3 { font-weight: normal; line-height: 1.15; }

h1 { font-size: clamp(2.25rem, 6vw, 3.25rem); margin: 0 0 0.5rem; }
h1 .red { color: var(--accent); }

.subtitle {
  font-style: italic;
  color: var(--muted);
  font-size: 1.25rem;
  margin: 0 0 2rem;
}

.headline {
  font-size: 1.4rem;
  line-height: 1.35;
  margin: 0 0 1.25rem;
}

h2 {
  font-size: 1.6rem;
  margin: 3rem 0 1rem;
}

/* Editions list */

.editions {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0;
  border-top: 1px solid var(--rule);
}

.editions li {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.25rem 1rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--rule);
}

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

/* Link list (About page) */

.links {
  list-style: none;
  padding: 0;
  margin: 1rem 0;
  border-top: 1px solid var(--rule);
}

.links li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--rule);
}

.links li > a:first-child { font-size: 1.15rem; }

.links span {
  display: block;
  color: var(--muted);
  font-size: 1rem;
}

.note {
  background: var(--surface);
  border-left: 3px solid var(--accent);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
}

.note p { margin: 0; }

/* Errata */

.errata { list-style: none; padding: 0; margin: 1rem 0; }

.erratum {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
}

.erratum h3 { font-size: 1.15rem; margin: 0.25rem 0 0.5rem; }
.erratum p { margin: 0.4rem 0; }
.erratum .label { font-family: var(--mono); font-size: 0.8rem; color: var(--muted); }

.empty {
  color: var(--muted);
  font-style: italic;
}

/* Narrow screens */

@media (max-width: 720px) {
  .book {
    grid-template-columns: 1fr;
    gap: 2rem;
    padding-top: 2rem;
  }
  .book-cover { max-width: 14rem; }
  .site-header { flex-direction: column; gap: 0.5rem; }
}