/* Lectio Ecclesiae: the books' red and paper, a book face (Gentium Book Plus: macrons and polytonic Greek) for
   headings and text, a plain sans for the interface. Layout: one centred column, wide figures. */
@font-face { font-family: "Gentium Book Plus"; src: url("/fonts/GentiumBookPlus-Regular.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "Gentium Book Plus"; src: url("/fonts/GentiumBookPlus-Italic.woff2") format("woff2"); font-weight: 400; font-style: italic; font-display: swap; }
@font-face { font-family: "Gentium Book Plus"; src: url("/fonts/GentiumBookPlus-Bold.woff2") format("woff2"); font-weight: 700; font-style: normal; font-display: swap; }
:root {
  --red: #9e2a1a; --red-strong: #84210f; --ink: #1f1b17; --muted: #625a51; --line: #e4ddd2;
  --bg: #fbf9f6; --panel: #f3eee6; --card: #ffffff; --accent-bg: #f6ebe6;
  --serif: "Gentium Book Plus", "Gentium Plus", Georgia, serif;
  --sans: "Instrument Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --wrap: 1120px; --radius: 10px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root { --red: #e0705c; --red-strong: #f08a76; --ink: #ece6dd; --muted: #a99f93; --line: #3a342e;
          --bg: #161310; --panel: #1f1b17; --card: #24201b; --accent-bg: #2b201c; color-scheme: dark; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.65 var(--serif); }
a { color: var(--red); text-underline-offset: 3px; }
a:hover { color: var(--red-strong); }
img { max-width: 100%; height: auto; display: block; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding-inline: 20px; }
.skip { position: absolute; left: -999px; } .skip:focus { left: 12px; top: 12px; background: var(--card); padding: 8px 12px; }

header.site { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; flex-wrap: wrap; }
.brand { font: 600 15px/1 var(--sans); letter-spacing: .16em; text-transform: uppercase; color: var(--red); text-decoration: none; }
nav.main { display: flex; gap: 22px; font: 500 15px/1 var(--sans); flex-wrap: wrap; }
nav.main a { color: var(--ink); text-decoration: none; }
nav.main a:hover, nav.main a[aria-current="page"] { color: var(--red); }

.eyebrow { font: 600 12.5px/1 var(--sans); letter-spacing: .16em; text-transform: uppercase; color: var(--red); margin: 0 0 14px; }
h1, h2, h3 { font-family: var(--serif); font-weight: 400; line-height: 1.15; text-wrap: balance; margin: 0; }
h1 { font-size: clamp(34px, 5.2vw, 58px); letter-spacing: -.01em; }
h2 { font-size: clamp(26px, 3.4vw, 38px); }
h3 { font-size: 22px; }
.lede { font-size: clamp(18px, 2vw, 21px); color: var(--muted); max-width: 40em; margin: 20px 0 0; }
section { padding-block: 72px; }
section.tight { padding-block: 48px; }
.panel { background: var(--panel); }

.btn { display: inline-flex; align-items: center; gap: 8px; font: 600 15px/1 var(--sans); padding: 13px 20px; border-radius: 999px;
  text-decoration: none; border: 1px solid var(--red); color: var(--red); background: transparent; cursor: pointer; }
.btn.solid { background: var(--red); color: #fff; }
.btn.solid:hover { background: var(--red-strong); color: #fff; }
.btn:hover { border-color: var(--red-strong); }
.btn:focus-visible, a:focus-visible, input:focus-visible { outline: 2px solid var(--red); outline-offset: 3px; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }

/* hero */
.hero { padding-block: 72px 56px; }
.hero .grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; }
.covers { position: relative; height: 470px; }
.covers img { position: absolute; width: 56%; border-radius: 4px; box-shadow: 0 18px 40px rgba(30, 20, 10, .22); }
.covers img:nth-child(1) { left: 0; top: 40px; transform: rotate(-5deg); }
.covers img:nth-child(2) { left: 22%; top: 0; z-index: 2; }
.covers img:nth-child(3) { right: 0; top: 50px; transform: rotate(5deg); }

/* features */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 40px; }
.feature { border-top: 2px solid var(--red); padding-top: 18px; }
.feature p { color: var(--muted); margin: 10px 0 0; }
.figure { margin: 44px 0 0; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); background: #fff; }
.caption { font: 14px/1.5 var(--sans); color: var(--muted); margin-top: 12px; }

/* book grids */
.books { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 28px; margin-top: 36px; }
.book { text-decoration: none; color: var(--ink); display: flex; flex-direction: column; gap: 12px; }
.book img { border-radius: 4px; box-shadow: 0 10px 26px rgba(30, 20, 10, .16); transition: transform .2s ease; aspect-ratio: 2 / 3; object-fit: cover; }
.book:hover img { transform: translateY(-4px); }
.book .t { font-size: 18px; line-height: 1.25; }
.book .s { font: 14px/1.4 var(--sans); color: var(--muted); }
.tag { align-self: flex-start; font: 600 11.5px/1 var(--sans); letter-spacing: .08em; text-transform: uppercase; padding: 6px 9px; border-radius: 999px;
  background: var(--accent-bg); color: var(--red); }
.series-head { display: grid; grid-template-columns: 1fr 1.3fr; gap: 40px; align-items: end; }
.series-head p { color: var(--muted); margin: 0; }

/* a book's page */
.bookpage { display: grid; grid-template-columns: 340px 1fr; gap: 56px; align-items: start; }
.bookpage > *, .hero .grid > *, .series-head > *, .signup > * { min-width: 0; }
dl.facts dd { overflow-wrap: anywhere; }
.lede, h1 { overflow-wrap: break-word; }
.bookpage .cover img { border-radius: 4px; box-shadow: 0 18px 40px rgba(30, 20, 10, .22); }
.bookpage .greek { font-size: 26px; color: var(--red); margin: 0 0 6px; }
.blurb p { margin: 0 0 16px; max-width: 38em; }
dl.facts { display: grid; grid-template-columns: max-content 1fr; gap: 8px 22px; font: 15px/1.5 var(--sans); margin: 28px 0 0; }
dl.facts dt { color: var(--muted); } dl.facts dd { margin: 0; font-variant-numeric: tabular-nums; }

/* sign-up */
.signup { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: center; background: var(--card);
  border: 1px solid var(--line); border-radius: 16px; padding: 40px; }
.signup p { color: var(--muted); margin: 12px 0 0; }
form.join { display: flex; gap: 10px; flex-wrap: wrap; }
form.join input { flex: 1 1 220px; font: 16px var(--sans); padding: 13px 16px; border-radius: 999px; border: 1px solid var(--line);
  background: var(--bg); color: var(--ink); }
.prose { max-width: 42em; }
.prose p { margin: 0 0 18px; }
.prose h2 { margin: 40px 0 14px; }

footer.site { border-top: 1px solid var(--line); padding-block: 40px; font: 14px/1.6 var(--sans); color: var(--muted); }
footer.site .wrap { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
footer.site a { color: var(--muted); }

@media (max-width: 880px) {
  .hero .grid, .series-head, .bookpage, .signup { grid-template-columns: 1fr; }
  .covers { height: 360px; max-width: 460px; }
  .features { grid-template-columns: 1fr; }
  .bookpage .cover { max-width: 300px; }
  section { padding-block: 52px; }
  .signup { padding: 28px; }
}
@media (max-width: 520px) {
  header.site .wrap { min-height: 0; padding-block: 12px; gap: 10px; }
  nav.main { gap: 16px; font-size: 14px; }
  .covers { height: 300px; }
}
@media (prefers-reduced-motion: reduce) { .book img { transition: none; } .book:hover img { transform: none; } }