:root {
  --bg: #f5f6f4;
  --surface: #ffffff;
  --alt: #eceee9;
  --ink: #1b222c;
  --muted: #56606b;
  --line: #d9ddd9;
  --accent: #1f4f7a;
  --accent-ink: #ffffff;
  --bronze: #8a672b;
  --display: "Frank Ruhl Libre", "David", "Times New Roman", serif;
  --body: "Assistant", "Segoe UI", Arial, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #12171d; --surface: #1a2129; --alt: #161c23; --ink: #e7eaee; --muted: #9aa4af;
    --line: #2a333d; --accent: #86b4e0; --accent-ink: #0f1a26; --bronze: #cda864;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #12171d; --surface: #1a2129; --alt: #161c23; --ink: #e7eaee; --muted: #9aa4af;
  --line: #2a333d; --accent: #86b4e0; --accent-ink: #0f1a26; --bronze: #cda864;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 400 1.0625rem/1.7 var(--body);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
h1, h2, h3 { font-family: var(--display); font-weight: 500; line-height: 1.2; text-wrap: balance; margin: 0; }
p { margin: 0; }

.wrap { max-width: 1120px; margin-inline: auto; padding-inline: 20px; }
.wrap.narrow { max-width: 760px; }
.skip { position: absolute; inset-inline-start: -9999px; }
.skip:focus { inset-inline-start: 16px; top: 16px; background: var(--surface); padding: 8px 12px; z-index: 10; }

/* Header */
.site-head {
  position: sticky; top: 0; z-index: 5;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.head-row { display: flex; align-items: center; justify-content: space-between; gap: 16px 32px; flex-wrap: wrap; padding-block: 12px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--ink); }
.brand-text { font-family: var(--display); font-size: 1.3rem; font-weight: 500; line-height: 1.1; display: flex; flex-direction: column; }
.brand-text small { font-family: var(--body); font-size: .8rem; color: var(--muted); font-weight: 400; margin-top: 3px; }
.logo { width: 44px; height: 44px; border-radius: 50%; overflow: hidden; flex: none; }
.nav { display: flex; flex-wrap: wrap; gap: 4px 22px; font-size: .95rem; }
.nav a { color: var(--ink); text-decoration: none; padding-block: 4px; border-bottom: 1px solid transparent; }
.nav a:hover, .nav a[aria-current="page"] { border-bottom-color: var(--bronze); }

/* Image placeholders (shown until the real image files are added) */
.ph { position: relative; display: block; background: var(--alt); }
.ph.noimg img { display: none; }
.ph.noimg::after {
  content: attr(data-fallback);
  position: absolute; inset: 0; display: grid; place-items: center; text-align: center;
  padding: 12%; font-family: var(--display); font-size: 1.05rem; line-height: 1.3; color: var(--muted);
  border: 1px solid var(--line);
}
.logo.noimg { border: 1px solid var(--line); }

/* Buttons */
.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 10px 20px; border-radius: 3px; border: 1px solid var(--accent);
  color: var(--accent); text-decoration: none; font-weight: 600; font-size: .98rem;
  transition: background .15s, color .15s;
}
.btn:hover { background: color-mix(in srgb, var(--accent) 10%, transparent); }
.btn.primary { background: var(--accent); color: var(--accent-ink); }
.btn.primary:hover { background: color-mix(in srgb, var(--accent) 86%, var(--ink)); }

/* Hero */
.hero { padding-block: 56px 72px; border-bottom: 1px solid var(--line); }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }
.eyebrow { font-size: .85rem; letter-spacing: .06em; color: var(--bronze); font-weight: 600; margin-bottom: 10px; }
.hero h1 { font-size: clamp(2.6rem, 6vw, 4.2rem); font-weight: 700; margin-bottom: 20px; }
.lede { font-size: 1.15rem; color: var(--muted); max-width: 34em; margin-bottom: 28px; }
.editions { display: flex; flex-wrap: wrap; gap: 0; margin: 0 0 32px; border-block: 1px solid var(--line); }
.editions div { padding: 12px 0; padding-inline-end: 28px; margin-inline-end: 28px; border-inline-end: 1px solid var(--line); }
.editions div:last-child { border-inline-end: 0; margin-inline-end: 0; padding-inline-end: 0; }
.editions dt { font-size: .8rem; color: var(--muted); }
.editions dd { margin: 0; font-family: var(--display); font-size: 1.15rem; font-variant-numeric: tabular-nums; }
.hero-cover { justify-self: center; width: min(100%, 340px); }
.cover { aspect-ratio: 2 / 3; box-shadow: 0 1px 2px rgba(0,0,0,.08), 0 12px 28px -12px rgba(20,30,45,.35); }
.cover img { width: 100%; height: 100%; object-fit: cover; }

/* Sections */
.section { padding-block: 72px; }
.section.alt { background: var(--alt); border-block: 1px solid var(--line); }
.section-head { margin-bottom: 36px; max-width: 40em; }
.section-head h1, .section-head h2 { font-size: clamp(2rem, 4vw, 2.6rem); margin-bottom: 10px; }
.section-head p { color: var(--muted); }

/* Books */
.books { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 40px 28px; }
.book a { display: flex; flex-direction: column; gap: 6px; text-decoration: none; color: var(--ink); }
.book .cover { margin-bottom: 8px; transition: transform .2s; }
.book a:hover .cover { transform: translateY(-4px); }
@media (prefers-reduced-motion: reduce) { .book .cover { transition: none; } }
.book-title { font-family: var(--display); font-size: 1.05rem; line-height: 1.3; font-weight: 500; }
.book-pub { font-size: .85rem; color: var(--muted); }

/* About */
.about-grid { display: grid; grid-template-columns: 300px 1fr; gap: 56px; align-items: start; }
.portrait { aspect-ratio: 400 / 452; border-radius: 2px; overflow: hidden; }
.portrait img { width: 100%; height: 100%; object-fit: cover; }
.about-text { display: grid; gap: 16px; max-width: 40em; }
.about-text h2 { font-size: clamp(2rem, 4vw, 2.6rem); }
.prizes { list-style: none; margin: 8px 0 0; padding: 0; display: grid; gap: 12px; }
.prizes li { display: grid; grid-template-columns: 64px 1fr; gap: 16px; padding-top: 12px; border-top: 1px solid var(--line); font-size: .98rem; }
.prizes span { font-family: var(--display); font-size: 1.3rem; color: var(--bronze); font-variant-numeric: tabular-nums; line-height: 1.3; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.contact-grid > div { display: grid; gap: 14px; align-content: start; }
.contact-grid h2 { font-size: 1.9rem; }
.email { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; font-size: 1.2rem; }
.email a { overflow-wrap: anywhere; }
.copy { font: inherit; font-size: .85rem; padding: 4px 12px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); border-radius: 3px; cursor: pointer; }

/* Downloads */
.files { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.file { display: grid; grid-template-columns: auto 1fr auto; gap: 20px; align-items: center; padding-block: 22px; border-bottom: 1px solid var(--line); }
.file-icon { width: 46px; height: 58px; display: grid; place-items: center; border: 1px solid var(--line); background: var(--surface); font-size: .72rem; font-weight: 700; letter-spacing: .08em; color: var(--bronze); border-radius: 2px 10px 2px 2px; }
.file-text h2 { font-size: 1.35rem; margin-bottom: 2px; }
.file-text p { color: var(--muted); font-size: .95rem; }
.back { margin-top: 32px; }

/* Footer */
.site-foot { border-top: 1px solid var(--line); padding-block: 28px; font-size: .9rem; color: var(--muted); }
.foot-row { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; }
.foot-row a { color: var(--muted); }

@media (max-width: 860px) {
  .hero-grid, .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .hero-cover { order: -1; width: min(70%, 260px); }
  .portrait { width: min(100%, 260px); }
  .hero { padding-block: 36px 56px; }
  .section { padding-block: 56px; }
}
@media (max-width: 520px) {
  .books { grid-template-columns: repeat(2, 1fr); gap: 32px 18px; }
  .file { grid-template-columns: auto 1fr; }
  .file .btn { grid-column: 1 / -1; }
  .editions div { padding-inline-end: 16px; margin-inline-end: 16px; }
}
.file-meta { font-size: .82rem; color: var(--muted); margin-top: 2px; font-variant-numeric: tabular-nums; opacity: .85; }