:root {
  --bg: #f6f3ea;
  --paper: #fffdf6;
  --ink: #24301d;
  --muted: #5d6754;
  --line: #c9c1a8;
  --olive: #3f4f2f;
  --serif: Georgia, "Iowan Old Style", serif;
  --sans: "Avenir Next", "Segoe UI", Helvetica, sans-serif;
  --mono: "SF Mono", ui-monospace, Menlo, monospace;
  --max: 980px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.55;
}

a {
  color: var(--olive);
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 20;
  padding: 0.5rem 0.8rem;
  background: var(--olive);
  color: var(--bg);
  text-decoration: none;
}

.skip-link:focus {
  top: 1rem;
}

.wrap {
  width: min(var(--max), calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(246, 243, 234, 0.94);
  border-bottom: 2px solid var(--olive);
}

.bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 3.5rem;
}

.logo {
  color: var(--ink);
  text-decoration: none;
  font-family: var(--serif);
  font-weight: 700;
}

.nav-toggle {
  display: none;
  border: 1px solid var(--olive);
  background: var(--paper);
  color: var(--ink);
  padding: 0.35rem 0.7rem;
  font: inherit;
}

.site-nav {
  display: flex;
  gap: 1.2rem;
}

.site-nav a {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.9rem;
}

.hero {
  padding: 3rem 0 1.5rem;
}

.book {
  margin: 0 0 0.4rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--olive);
}

h1 {
  margin: 0 0 0.7rem;
  font-family: var(--serif);
  font-size: clamp(2.6rem, 6vw, 4.2rem);
}

.lede,
section p {
  max-width: 40rem;
  color: var(--muted);
}

section {
  padding: 1.6rem 0 2rem;
}

h2 {
  margin: 0 0 0.9rem;
  font-family: var(--serif);
  font-size: 1.4rem;
  color: var(--olive);
}

.sheet {
  width: 100%;
  border-collapse: collapse;
  background: var(--paper);
  border: 1px solid var(--line);
}

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

.sheet th {
  width: 8rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--olive);
  background: #efe8d4;
}

.wide thead th {
  width: auto;
}

.wide td:first-child,
.wide th:first-child {
  font-family: var(--mono);
  white-space: nowrap;
  width: 8rem;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.2rem 0 2.4rem;
  border-top: 2px solid var(--olive);
  color: var(--muted);
  font-size: 0.88rem;
}

.missing {
  min-height: 70vh;
  display: grid;
  align-content: center;
}

:focus-visible {
  outline: 2px solid var(--olive);
  outline-offset: 3px;
}

@media (max-width: 760px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 3.5rem;
    right: 1rem;
    left: 1rem;
    padding: 1rem;
    flex-direction: column;
    background: var(--paper);
    border: 1px solid var(--olive);
  }

  .site-nav.is-open {
    display: flex;
  }

  .sheet,
  .sheet tbody,
  .sheet tr,
  .sheet th,
  .sheet td {
    display: block;
    width: 100%;
  }

  .sheet td:first-child,
  .wide th:first-child {
    white-space: normal;
  }

  .site-footer {
    display: grid;
  }
}