@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600&family=Source+Sans+3:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500&family=Frank+Ruhl+Libre:wght@400;500;700&display=swap');

:root {
  --paper: #faf9f6;
  --paper-raised: #f3f1eb;
  --ink: #1b1f23;
  --ink-soft: #52585e;
  --ink-faint: #83898e;
  --accent: #1f5c56;
  --accent-strong: #164943;
  --accent-soft: #e7efee;
  --line: #dad5c9;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #14181b;
    --paper-raised: #1b2023;
    --ink: #e9e6dd;
    --ink-soft: #a7acaf;
    --ink-faint: #767c80;
    --accent: #5bb5a8;
    --accent-strong: #7cc9be;
    --accent-soft: #1c2b29;
    --line: #2b3033;
  }
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: 'Source Sans 3', 'Segoe UI', sans-serif;
  font-size: 17px;
  line-height: 1.65;
}

html[dir="rtl"] body { font-family: 'Frank Ruhl Libre', 'Segoe UI', serif; }

h1, h2, h3 {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 500;
  text-wrap: balance;
  margin: 0;
}

html[dir="rtl"] h1, html[dir="rtl"] h2, html[dir="rtl"] h3 {
  font-family: 'Frank Ruhl Libre', Georgia, serif;
  font-weight: 700;
}

a { color: var(--accent-strong); }
a:hover { text-decoration-thickness: 2px; }

.wrap { max-width: 860px; margin: 0 auto; padding: 0 1.5rem; }

/* header */
.site-header {
  border-bottom: 1px solid var(--line);
  padding: 1.4rem 0;
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.site-name {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 500;
  font-size: 1.3rem;
  color: var(--ink);
  text-decoration: none;
}

html[dir="rtl"] .site-name { font-family: 'Frank Ruhl Libre', Georgia, serif; font-weight: 700; }

nav.main-nav { display: flex; gap: 1.4rem; flex-wrap: wrap; }

nav.main-nav a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

nav.main-nav a.active, nav.main-nav a:hover { color: var(--accent-strong); }

.lang-switch { display: flex; gap: 0.4rem; }

.lang-switch button {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.76rem;
  letter-spacing: 0.03em;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink-soft);
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  cursor: pointer;
}

.lang-switch button.active { border-color: var(--accent); color: var(--accent-strong); background: var(--accent-soft); }

/* page intro */
.page-intro { padding: 3rem 0 2rem; }

.page-intro .eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.page-intro h1 { font-size: clamp(1.8rem, 4vw, 2.4rem); margin-bottom: 0.6rem; }
.page-intro p.lede { color: var(--ink-soft); font-size: 1.05rem; max-width: 56ch; }

main { padding-bottom: 4rem; }

/* filters */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 2rem;
  padding-bottom: 1.4rem;
  border-bottom: 1px solid var(--line);
}

.filters select, .filters input[type="search"] {
  font-family: 'Source Sans 3', sans-serif;
  font-size: 0.92rem;
  border: 1px solid var(--line);
  background: var(--paper-raised);
  color: var(--ink);
  padding: 0.45rem 0.7rem;
  border-radius: 6px;
}

.filters input[type="search"] { flex: 1; min-width: 12rem; }

/* items */
ol.item-list, ul.item-list { list-style: none; margin: 0; padding: 0; }

.item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.2rem;
  padding: 1rem 0;
  border-top: 1px solid var(--line);
}

.item .title { font-weight: 600; font-size: 1.02rem; color: var(--ink); }
html[dir="rtl"] .item .title { font-weight: 700; }

.item .meta {
  font-size: 0.86rem;
  color: var(--ink-faint);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5em;
  margin-top: 0.2rem;
}

.item .meta .links a { margin-inline-end: 0.6em; }

.item .tag {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: var(--accent-soft);
  color: var(--accent-strong);
  padding: 0.05rem 0.4rem;
  border-radius: 999px;
}

.empty-state { color: var(--ink-faint); padding: 2rem 0; font-style: italic; }

/* books */
.book { display: grid; gap: 0.4rem; padding: 1.4rem 0; border-top: 1px solid var(--line); }
.book.featured { background: var(--accent-soft); border-radius: 8px; padding: 1.4rem 1.4rem; border-top: none; margin-bottom: 1.2rem; }
.book .title { font-family: 'Fraunces', Georgia, serif; font-size: 1.2rem; font-weight: 500; }
html[dir="rtl"] .book .title { font-family: 'Frank Ruhl Libre', Georgia, serif; font-weight: 700; }
.book .series { color: var(--ink-faint); font-size: 0.88rem; }
.book .edition { font-size: 0.92rem; color: var(--ink-soft); margin-top: 0.3rem; }

/* placeholder note (dev-only visual flag) */
.tbd {
  border: 1px dashed var(--accent);
  background: var(--accent-soft);
  color: var(--ink-soft);
  padding: 1rem 1.2rem;
  border-radius: 6px;
  font-size: 0.92rem;
}

footer.site-footer {
  border-top: 1px solid var(--line);
  padding: 2rem 0;
  color: var(--ink-faint);
  font-size: 0.85rem;
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .site-header .wrap { flex-direction: column; align-items: flex-start; }
}