:root {
  --ink: #171816;
  --paper: #f4f0e7;
  --river: #446a70;
  --deep: #182d31;
  --mist: #dbe2df;
  --accent: #b66a3c;
  --line: rgba(23, 24, 22, 0.18);
  --max: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.55;
}
a { color: inherit; }
img { display: block; max-width: 100%; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(244, 240, 231, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}
.nav {
  width: min(calc(100% - 32px), var(--max));
  margin: auto;
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  text-decoration: none;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.nav-links { display: flex; gap: 20px; flex-wrap: wrap; }
.nav-links a { text-decoration: none; font-family: Arial, sans-serif; font-size: .88rem; }
.hero {
  min-height: 72vh;
  display: grid;
  align-items: end;
  color: white;
  background:
    linear-gradient(90deg, rgba(8, 18, 20, .92), rgba(8, 18, 20, .36)),
    url("images/old-isleworth-riverside.jpg") center/cover;
}
.hero-inner {
  width: min(calc(100% - 32px), var(--max));
  margin: 0 auto;
  padding: 90px 0 72px;
  max-width: 760px;
  justify-self: start;
}
.eyebrow {
  margin: 0 0 12px;
  font: 700 .78rem/1.2 Arial, sans-serif;
  letter-spacing: .18em;
  text-transform: uppercase;
}
h1, h2, h3 { line-height: 1.08; }
h1 { margin: 0 0 18px; font-size: clamp(3.2rem, 8vw, 7.4rem); letter-spacing: -.04em; }
h2 { margin: 0 0 18px; font-size: clamp(2rem, 4vw, 3.6rem); letter-spacing: -.025em; }
h3 { margin: 0 0 8px; font-size: 1.35rem; }
.lede { max-width: 700px; font-size: clamp(1.06rem, 2vw, 1.32rem); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.button {
  display: inline-block;
  padding: 12px 18px;
  border: 1px solid currentColor;
  border-radius: 3px;
  background: var(--deep);
  color: white;
  text-decoration: none;
  font: 700 .9rem/1 Arial, sans-serif;
}
.button.secondary { background: transparent; }
.section { width: min(calc(100% - 32px), var(--max)); margin: auto; padding: 82px 0; }
.section.compact { padding-top: 46px; padding-bottom: 46px; }
.section-intro { max-width: 680px; margin: -8px 0 36px; font-size: 1.08rem; }
.split { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .3);
  padding: 24px;
}
.card .number { font: 700 .78rem Arial, sans-serif; color: var(--river); letter-spacing: .14em; }
.number { font: 700 .78rem Arial, sans-serif; color: var(--river); letter-spacing: .14em; }
.book-shelf { display: grid; gap: 28px; }
.book-feature {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, .8fr);
  gap: clamp(28px, 5vw, 60px);
  align-items: center;
  padding: clamp(24px, 4vw, 44px);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .36);
}
.book-feature-two { grid-template-columns: minmax(240px, .7fr) minmax(300px, 1.3fr); }
.edition-gallery { display: grid; align-items: start; gap: 14px; }
.edition-gallery.three-covers { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.edition-gallery.single-cover { width: min(100%, 310px); justify-self: center; }
.cover-card { position: relative; margin: 0; min-width: 0; }
.book-cover {
  width: 100%;
  aspect-ratio: 2 / 3;
  object-fit: cover;
  border: 1px solid rgba(23, 24, 22, .28);
  box-shadow: 0 14px 28px rgba(20, 24, 22, .18);
}
.cover-card figcaption { margin-top: 10px; font: 700 .72rem/1.35 Arial, sans-serif; color: #44504c; }
.forthcoming-cover .book-cover { filter: saturate(.72); }
.cover-ribbon {
  position: absolute;
  z-index: 1;
  top: 12px;
  right: -7px;
  padding: 7px 10px;
  background: var(--accent);
  color: white;
  box-shadow: 0 3px 8px rgba(0,0,0,.25);
  font: 700 .66rem/1 Arial, sans-serif;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.book-details h3 { margin-bottom: 14px; font-size: clamp(1.8rem, 3vw, 2.8rem); }
.availability-list { list-style: none; margin: 26px 0 0; padding: 0; border-top: 1px solid var(--line); }
.availability-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}
.availability-list strong, .availability-list small { display: block; }
.availability-list strong { font: 700 .92rem/1.25 Arial, sans-serif; }
.availability-list small { margin-top: 3px; font: .74rem/1.3 Arial, sans-serif; color: #59635f; }
.status {
  flex: 0 0 auto;
  padding: 6px 9px;
  border-radius: 999px;
  font: 700 .7rem/1.2 Arial, sans-serif;
  text-align: center;
}
.status.available { background: #dbe9df; color: #174a2b; }
.status.soon { background: #eee4d5; color: #74421f; }
.status.planned { background: #dce6e8; color: #214f57; }
.purchase-links { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 24px; }
.button.outline { background: transparent; color: var(--deep); }
.text-link { font-weight: 700; }
.saga-note {
  display: grid;
  grid-template-columns: minmax(130px, .3fr) 1fr;
  gap: 24px;
  padding: 24px;
  border-left: 5px solid var(--accent);
  background: rgba(255, 255, 255, .25);
}
.saga-note h3, .saga-note p { margin-top: 0; }
.saga-note div p { margin-bottom: 0; }
.photo { filter: grayscale(1); border: 1px solid var(--line); }
.dark { background: var(--deep); color: white; }
.dark .card { background: rgba(255,255,255,.05); border-color: rgba(255,255,255,.2); }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.stat { padding: 18px; background: var(--paper); }
.stat strong { display: block; font-size: 1.45rem; }
.stat span { font: .72rem Arial, sans-serif; text-transform: uppercase; letter-spacing: .12em; }
.route-map { width: 100%; background: white; padding: 12px; border: 1px solid var(--line); }
.notice { border-left: 5px solid var(--accent); padding: 4px 0 4px 18px; }
.game-list { display: grid; gap: 16px; }
.clue { border: 1px solid var(--line); padding: 18px; background: rgba(255,255,255,.32); }
.clue label { display: grid; grid-template-columns: auto 1fr; gap: 12px; align-items: start; font-weight: 700; }
.clue textarea { width: 100%; min-height: 92px; margin-top: 12px; padding: 10px; border: 1px solid var(--line); background: white; font: 1rem Georgia, serif; }
.score { font: 700 1rem Arial, sans-serif; }
.site-footer { background: #101a1c; color: white; padding: 42px 0; }
.footer-inner { width: min(calc(100% - 32px), var(--max)); margin: auto; display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.small { font: .84rem/1.5 Arial, sans-serif; }

@media (max-width: 820px) {
  .split, .card-grid, .book-feature, .book-feature-two { grid-template-columns: 1fr; }
  .book-feature-two .edition-gallery { grid-row: auto; }
  .stats { grid-template-columns: 1fr 1fr; }
  .nav { align-items: flex-start; padding: 17px 0; }
  .nav-links { justify-content: flex-end; gap: 10px 16px; }
}

@media (max-width: 520px) {
  .stats { grid-template-columns: 1fr; }
  .hero { min-height: 66vh; }
  .edition-gallery.three-covers { grid-template-columns: 1fr 1fr; }
  .edition-gallery.three-covers .cover-card:first-child { grid-column: 1 / -1; width: min(72vw, 260px); justify-self: center; }
  .availability-list li { align-items: flex-start; }
  .status { max-width: 150px; }
  .saga-note { grid-template-columns: 1fr; gap: 6px; }
}