:root {
  --paper: #fafaf8;
  --ink: #1a1a1a;
  --muted: #514d48;
  --wine: #8b2635;
  --blue: #1b365d;
  --line: rgba(27, 54, 93, 0.17);
  --serif: "Cormorant Garamond", Georgia, serif;
  --sans: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html { background: var(--paper); }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 18px;
  font-weight: 300;
  line-height: 1.65;
}

a { color: inherit; text-underline-offset: 0.18em; }

.site-header,
.page-footer {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  width: min(1160px, calc(100% - 48px));
  margin: 0 auto;
}

.site-header { padding: 28px 0 24px; }

.brand,
.language { font-size: 0.78rem; font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase; }

.brand { text-decoration: none; }

.language { color: var(--muted); }
.language a { text-decoration-color: transparent; }
.language a[aria-current="page"] { color: var(--wine); }

.hero {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.hero-inner,
.content {
  width: min(900px, calc(100% - 48px));
  margin: 0 auto;
}

.hero-inner { padding: clamp(56px, 10vw, 124px) 0 clamp(48px, 8vw, 92px); }

.eyebrow,
.section-label {
  margin: 0 0 18px;
  color: var(--wine);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1, h2, h3 { font-family: var(--serif); font-weight: 400; line-height: 1.03; }
h1 { max-width: 760px; margin: 0; font-size: clamp(3.25rem, 8vw, 6.6rem); letter-spacing: -0.035em; }
h2 { margin: 0 0 20px; font-size: clamp(2.2rem, 4.5vw, 3.7rem); letter-spacing: -0.025em; }
h3 { margin: 0 0 8px; font-size: 1.7rem; }

.deck { max-width: 740px; margin: 28px 0 0; color: var(--muted); font-family: var(--serif); font-size: clamp(1.45rem, 2.7vw, 2.1rem); font-style: italic; line-height: 1.3; }
.content { padding: clamp(52px, 9vw, 100px) 0; }
.section { padding: 0 0 clamp(48px, 8vw, 84px); }
.section + .section { padding-top: clamp(48px, 8vw, 84px); border-top: 1px solid var(--line); }
.prose { max-width: 720px; }
.prose p { margin: 0 0 18px; }
.prose p:last-child { margin-bottom: 0; }

.not-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 30px; }
.not-list article { padding: 20px 0; border-top: 2px solid var(--blue); }
.not-list p { margin: 0; color: var(--muted); font-size: 0.95rem; }

.concepts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.concepts article { padding: 28px; background: var(--paper); }
.concepts p { margin: 0; color: var(--muted); font-size: 0.96rem; }

.editions { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(28px, 6vw, 72px); align-items: start; }
.edition { display: grid; grid-template-columns: minmax(120px, 180px) 1fr; gap: 24px; }
.edition img { width: 100%; border: 1px solid var(--line); box-shadow: 8px 10px 0 rgba(139, 38, 53, 0.09); }
.edition h3 { margin-top: 4px; }
.edition p { margin: 0 0 10px; color: var(--muted); font-size: 0.94rem; }
.edition .isbn { font-size: 0.78rem; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; }
.button { display: inline-block; margin-top: 14px; padding: 11px 16px; border: 1px solid var(--wine); color: var(--wine); font-size: 0.79rem; font-weight: 600; letter-spacing: 0.09em; text-decoration: none; text-transform: uppercase; }
.button:hover, .button:focus-visible { background: var(--wine); color: #fff; }

.companion { display: grid; grid-template-columns: 1fr auto; gap: 28px; align-items: end; padding: clamp(28px, 5vw, 52px); background: #f5eee8; }
.companion p { max-width: 600px; margin: 0; color: var(--muted); }

.metadata { display: grid; grid-template-columns: 160px 1fr; gap: 10px 28px; max-width: 700px; margin: 0; }
.metadata dt { color: var(--muted); font-size: 0.82rem; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; }
.metadata dd { margin: 0; }

.page-footer { padding: 28px 0 46px; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.82rem; }
.page-footer a { color: var(--wine); }

@media (max-width: 760px) {
  body { font-size: 17px; }
  .site-header, .page-footer, .hero-inner, .content { width: min(100% - 32px, 900px); }
  .not-list, .concepts, .editions { grid-template-columns: 1fr; }
  .edition { grid-template-columns: 120px 1fr; }
  .companion { grid-template-columns: 1fr; }
  .metadata { grid-template-columns: 1fr; gap: 4px; }
  .metadata dd { margin-bottom: 14px; }
}