:root {
  --bg: #14110f;
  --surface: #1e1916;
  --surface-raised: #28221e;
  --ink: #e8e0d4;
  --muted: #9a8b7a;
  --gold: #d4af6a;
  --gold-dim: #a68b4b;
  --wine: #6b3a3a;
  --spine-1: #4a3728;
  --spine-2: #5c4a3a;
  --spine-3: #3d4a52;
  --spine-4: #524038;
  --font-display: Georgia, "Times New Roman", serif;
  --font-body: "Segoe UI", system-ui, sans-serif;
}

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

html {
  background: var(--bg);
  color: var(--ink);
  min-height: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  line-height: 1.65;
}

a {
  color: var(--gold);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
}

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

.site-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1.5rem;
  max-width: 60rem;
  margin: 0 auto;
  padding: 1.75rem 1.5rem 0;
  border-bottom: 1px solid rgba(212, 175, 106, 0.15);
  padding-bottom: 1.25rem;
}

.mark {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--ink);
  text-decoration: none;
}

.mark em {
  font-style: normal;
  color: var(--gold);
}

nav {
  display: flex;
  gap: 1.25rem;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

main {
  max-width: 60rem;
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
}

.hero {
  padding: 3rem 0 2.5rem;
  position: relative;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 8rem;
  height: 100%;
  background: repeating-linear-gradient(
    90deg,
    var(--spine-1) 0,
    var(--spine-1) 12px,
    var(--spine-2) 12px,
    var(--spine-2) 24px,
    var(--spine-3) 24px,
    var(--spine-3) 36px,
    var(--spine-4) 36px,
    var(--spine-4) 48px
  );
  opacity: 0.35;
  border-radius: 2px;
}

.eyebrow {
  margin: 0 0 1rem;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold-dim);
}

h1 {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  line-height: 1.1;
  font-weight: 700;
  max-width: 18ch;
  position: relative;
}

h2 {
  font-family: var(--font-display);
  font-weight: 700;
}

.lede {
  margin: 0;
  max-width: 34rem;
  font-size: 1.1rem;
  color: var(--muted);
  position: relative;
}

.shelf {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1rem;
  margin-top: 2.5rem;
}

.shelf-card {
  background: var(--surface);
  border: 1px solid rgba(212, 175, 106, 0.12);
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
}

.shelf-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 6px;
}

.shelf-card.spine-wine::before {
  background: linear-gradient(180deg, var(--wine) 0%, #4a2828 100%);
}

.shelf-card.spine-gold::before {
  background: linear-gradient(180deg, var(--gold) 0%, var(--gold-dim) 100%);
}

.shelf-card.spine-slate::before {
  background: linear-gradient(180deg, var(--spine-3) 0%, #2a3338 100%);
}

.shelf-card.spine-earth::before {
  background: linear-gradient(180deg, var(--spine-2) 0%, var(--spine-1) 100%);
}

.shelf-card.span-4 {
  grid-column: span 4;
}

.shelf-card.span-5 {
  grid-column: span 5;
}

.shelf-card.span-7 {
  grid-column: span 7;
}

.shelf-card.span-8 {
  grid-column: span 8;
}

.shelf-card h2 {
  margin: 0 0 0.55rem;
  font-size: 1.15rem;
  color: var(--gold);
}

.shelf-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.feature-band {
  margin-top: 2.5rem;
  padding: 2rem 2rem 2rem 2.5rem;
  background: var(--surface-raised);
  border-left: 4px solid var(--gold);
  position: relative;
}

.feature-band::after {
  content: "";
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  width: 3rem;
  height: 5rem;
  background: repeating-linear-gradient(
    90deg,
    var(--spine-1) 0,
    var(--spine-1) 6px,
    var(--wine) 6px,
    var(--wine) 12px,
    var(--spine-3) 12px,
    var(--spine-3) 18px
  );
  opacity: 0.5;
  border-radius: 1px;
}

.feature-band h2 {
  margin: 0 0 0.5rem;
  font-size: 1.25rem;
  color: var(--ink);
}

.feature-band p {
  margin: 0;
  max-width: 32rem;
  color: var(--muted);
}

.reading-list {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(212, 175, 106, 0.15);
}

.reading-list h2 {
  margin: 0 0 1.25rem;
  font-size: 1.1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold-dim);
  font-weight: 400;
}

.reading-list ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.reading-list li {
  padding: 0.85rem 0;
  border-bottom: 1px solid rgba(212, 175, 106, 0.08);
  color: var(--muted);
  font-family: var(--font-display);
  font-size: 1.02rem;
}

.reading-list li strong {
  color: var(--ink);
  font-weight: 400;
}

.narrow {
  max-width: 38rem;
  padding-top: 2rem;
}

.narrow h1 {
  font-size: clamp(2rem, 4vw, 2.5rem);
  max-width: none;
}

.narrow h2 {
  margin-top: 2.25rem;
  font-size: 1.2rem;
  color: var(--gold);
}

.narrow p,
.narrow li {
  color: var(--muted);
}

.narrow ul {
  padding-left: 1.25rem;
}

.narrow ul li + li {
  margin-top: 0.35rem;
}

.error-spine {
  display: flex;
  gap: 4px;
  margin: 0 0 1.5rem;
}

.error-spine span {
  display: block;
  width: 8px;
  height: 3.5rem;
  border-radius: 1px;
}

.error-spine span:nth-child(1) { background: var(--wine); }
.error-spine span:nth-child(2) { background: var(--gold); }
.error-spine span:nth-child(3) { background: var(--spine-3); }
.error-spine span:nth-child(4) { background: var(--spine-2); }

.site-footer {
  max-width: 60rem;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 2rem;
  border-top: 1px solid rgba(212, 175, 106, 0.15);
  color: var(--muted);
  font-size: 0.88rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.footer-title {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  color: var(--gold);
  font-size: 0.95rem;
}

.footer-grid p {
  margin: 0;
}

.footer-copy {
  margin: 0;
  font-size: 0.82rem;
}

@media (max-width: 768px) {
  .hero::before {
    width: 4rem;
    opacity: 0.2;
  }

  .shelf-card.span-4,
  .shelf-card.span-5,
  .shelf-card.span-7,
  .shelf-card.span-8 {
    grid-column: span 12;
  }

  .feature-band::after {
    display: none;
  }

  .site-header {
    flex-direction: column;
    align-items: flex-start;
  }
}