:root {
  --paper: #e8ebe2;
  --paper-raised: #dee2d5;
  --ink: #1c231e;
  --ink-soft: #55604f;
  --ink-faint: #838f7c;
  --line: #c6cbb9;
  --accent: #3d6350;
  --accent-ink: #f2f4ec;

  --font-display: 'Fraunces', 'Iowan Old Style', 'Palatino Linotype', Georgia, serif;
  --font-body: 'Newsreader', 'Iowan Old Style', Georgia, serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #121814;
    --paper-raised: #1a2119;
    --ink: #e6e9df;
    --ink-soft: #a3ad99;
    --ink-faint: #6d7867;
    --line: #2b342a;
    --accent: #85b89e;
    --accent-ink: #0d1410;
  }
}

:root[data-theme="dark"] {
  --paper: #121814;
  --paper-raised: #1a2119;
  --ink: #e6e9df;
  --ink-soft: #a3ad99;
  --ink-faint: #6d7867;
  --line: #2b342a;
  --accent: #85b89e;
  --accent-ink: #0d1410;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

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

header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px clamp(20px, 5vw, 56px);
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.wordmark {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: 19px;
  letter-spacing: 0.01em;
  text-decoration: none;
  white-space: nowrap;
}

nav {
  display: flex;
  gap: clamp(18px, 3vw, 32px);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

nav a {
  text-decoration: none;
  color: var(--ink-soft);
  padding-bottom: 3px;
  border-bottom: 1px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

nav a:hover { color: var(--ink); }

nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

main { min-height: calc(100vh - 68px); }

/* ---- home view ---- */

.view-home {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: clamp(64px, 12vh, 108px) clamp(24px, 7vw, 64px) clamp(72px, 14vh, 140px);
  min-height: calc(100vh - 68px);
}

.home-inner {
  max-width: 580px;
  text-align: center;
}

.epigraph {
  margin: 0 0 clamp(56px, 10vh, 84px);
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(22px, 3.2vw, 27px);
  line-height: 1.55;
  color: var(--accent);
}

.epigraph-attr {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.home-inner p.lede {
  font-size: clamp(17px, 2.2vw, 20px);
  line-height: 1.75;
  color: var(--ink);
  margin: 0 0 clamp(44px, 7vh, 64px);
}

.cta-button {
  display: inline-block;
  margin-top: 4px;
  padding: 11px 24px;
  border: 1px solid var(--ink);
  background: var(--ink);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--paper);
  transition: background 0.15s ease, color 0.15s ease;
}

.cta-button:hover {
  background: transparent;
  color: var(--ink);
}

/* ---- books view ---- */

.view-books {
  padding: clamp(40px, 7vh, 72px) clamp(20px, 6vw, 56px) 96px;
  max-width: 720px;
  margin: 0 auto;
}

.current-read {
  margin-bottom: clamp(32px, 5vh, 44px);
  padding: 18px 22px;
  background: var(--paper-raised);
  border-left: 3px solid var(--accent);
}

.current-read .eyebrow {
  display: block;
  color: var(--accent);
  margin-bottom: 8px;
}

.current-read .book-title {
  font-size: 18px;
}

.current-read .book-author {
  margin-top: 4px;
}

.books-head {
  margin-bottom: 18px;
}

.books-head h1 {
  font-family: var(--font-display);
  font-weight: 500;
  font-style: italic;
  font-size: clamp(28px, 4vw, 36px);
  margin: 0 0 12px;
  text-wrap: balance;
}

.shelf { margin-bottom: 48px; }

.book {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.book:last-child { border-bottom: none; }

.book-title {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: 19px;
}

.book-author {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-top: 6px;
  font-variant-numeric: tabular-nums;
}

.book-note {
  color: var(--ink-soft);
  font-size: 15px;
  margin-top: 8px;
  max-width: 58ch;
}

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

footer {
  padding: 22px clamp(20px, 6vw, 56px) 30px;
  text-align: center;
  font-size: 13px;
  color: var(--ink-faint);
}

@media (max-width: 520px) {
  header { padding: 16px 20px; }
}

@media (prefers-reduced-motion: no-preference) {
  .view-home .home-inner, .view-books .books-head {
    animation: rise 0.5s ease both;
  }
  @keyframes rise {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
  }
}