/* ---------- Design tokens ---------- */
:root{
  --bg: #faf6ef;
  --bg-alt: #ffffff;
  --ink: #2b2417;
  --ink-soft: #5a5142;
  --muted: #8a8072;
  --border: #e6dcc8;
  --accent: #b5762a;
  --accent-dark: #8f5a1c;
  --accent-soft: #f3e3c8;
  --ot: #6b7f4f;
  --ot-soft: #e7edd9;
  --nt: #3f7d8c;
  --nt-soft: #dcedf0;
  --danger: #b03a2e;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 2px 10px rgba(43,36,23,.06), 0 1px 2px rgba(43,36,23,.06);
  --shadow-lift: 0 10px 30px rgba(43,36,23,.12);
  --max-width: 1080px;
  --header-h: 64px;
  font-size: 16px;
}

@media (prefers-color-scheme: dark){
  :root{
    --bg: #1b1712;
    --bg-alt: #221d17;
    --ink: #f1e9da;
    --ink-soft: #cfc3ac;
    --muted: #9c917d;
    --border: #392f22;
    --accent: #e0a24e;
    --accent-dark: #f0b968;
    --accent-soft: #3a2c15;
    --ot: #9db97c;
    --ot-soft: #26301d;
    --nt: #7fc2d4;
    --nt-soft: #17282c;
    --shadow: 0 2px 10px rgba(0,0,0,.35);
    --shadow-lift: 0 10px 30px rgba(0,0,0,.5);
  }
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a{ color: inherit; }
img{ max-width: 100%; display: block; }
button{ font: inherit; }

/* ---------- Header ---------- */
.site-header{
  position: sticky; top: 0; z-index: 40;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
}
.header-inner{
  max-width: var(--max-width);
  margin: 0 auto;
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 0 16px;
}
.brand{
  display: flex; align-items: center; gap: 10px;
  text-decoration: none;
  flex: 0 0 auto;
}
.brand-logo{ width: 38px; height: 38px; object-fit: contain; border-radius: 8px; background: var(--accent-soft); padding: 3px; }
.brand-text{ display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong{ font-size: 1.02rem; color: var(--ink); }
.brand-text small{ color: var(--muted); font-size: .72rem; }

.main-nav{ display: flex; gap: 4px; flex: 1 1 auto; }
.main-nav a{
  text-decoration: none;
  color: var(--ink-soft);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: .92rem;
  font-weight: 600;
  white-space: nowrap;
}
.main-nav a:hover{ background: var(--accent-soft); color: var(--accent-dark); }
.main-nav a.active{ background: var(--accent); color: #fff; }

.header-search{ flex: 0 0 auto; }
.header-search input{
  width: 220px;
  max-width: 40vw;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--ink);
  font-size: .88rem;
}
.header-search input:focus{ outline: 2px solid var(--accent); outline-offset: 1px; }

.btn-donate{
  flex: 0 0 auto;
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px;
  border-radius: 999px;
  background: linear-gradient(135deg, #e0555f, #c53a4a);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: .88rem;
  white-space: nowrap;
  box-shadow: 0 2px 8px rgba(197,58,74,.35);
  transition: transform .15s ease, box-shadow .15s ease;
}
.btn-donate:hover{ transform: translateY(-1px); box-shadow: 0 4px 12px rgba(197,58,74,.45); }
.btn-donate span{ font-size: 1rem; }

.nav-toggle{
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 36px; height: 36px;
  background: none; border: none; cursor: pointer;
  border-radius: var(--radius-sm);
}
.nav-toggle span{ display: block; height: 2px; background: var(--ink); border-radius: 2px; }
.nav-toggle:hover{ background: var(--accent-soft); }

/* ---------- Layout ---------- */
.app-main{
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 28px 16px 64px;
  min-height: 60vh;
}

.site-footer{
  border-top: 1px solid var(--border);
  background: var(--bg-alt);
  margin-top: 40px;
}
.footer-inner{
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 22px 16px 34px;
  color: var(--ink-soft);
  font-size: .85rem;
}
.footer-inner .muted{ color: var(--muted); }
.footer-inner .credit{ margin-top: 10px; font-size: .8rem; color: var(--muted); }
.footer-inner .credit a{ color: var(--accent-dark); font-weight: 700; text-decoration: none; }
.footer-inner .credit a:hover{ text-decoration: underline; }

/* ---------- Hero / Home ---------- */
.hero{
  display: grid;
  gap: 18px;
  padding: 40px 28px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--accent-soft), var(--bg-alt));
  border: 1px solid var(--border);
  margin-bottom: 32px;
}
.hero h1{ margin: 0; font-size: clamp(1.6rem, 4vw, 2.3rem); }
.hero p{ margin: 0; color: var(--ink-soft); max-width: 60ch; }
.hero-search{ display: flex; gap: 8px; max-width: 480px; }
.hero-search input{
  flex: 1;
  padding: 12px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-alt);
  color: var(--ink);
  font-size: 1rem;
}
.hero-search button{
  padding: 12px 20px;
  border-radius: 999px;
  border: none;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}
.hero-search button:hover{ background: var(--accent-dark); }

.testament-cards{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}
.testament-card{
  display: block;
  text-decoration: none;
  padding: 22px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-alt);
  box-shadow: var(--shadow);
  transition: transform .15s ease, box-shadow .15s ease;
}
.testament-card:hover{ transform: translateY(-3px); box-shadow: var(--shadow-lift); }
.testament-card.ot{ border-top: 4px solid var(--ot); }
.testament-card.nt{ border-top: 4px solid var(--nt); }
.testament-card h2{ margin: 0 0 6px; font-size: 1.2rem; }
.testament-card p{ margin: 0; color: var(--muted); font-size: .9rem; }
.testament-card .count{ font-size: 2rem; font-weight: 800; color: var(--ink); }

.section-title{
  display: flex; align-items: baseline; justify-content: space-between; gap: 12px;
  margin: 0 0 14px;
}
.section-title h2{ margin: 0; font-size: 1.3rem; }
.section-title a{ font-size: .88rem; font-weight: 700; color: var(--accent-dark); text-decoration: none; }

/* ---------- Lesson grid / list ---------- */
.toolbar{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 18px;
}
.toolbar input[type="search"]{
  flex: 1 1 240px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-alt);
  color: var(--ink);
  font-size: .95rem;
}
.chip-group{ display: flex; gap: 6px; flex-wrap: wrap; }
.chip{
  padding: 7px 13px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-alt);
  color: var(--ink-soft);
  cursor: pointer;
  font-size: .82rem;
  font-weight: 600;
}
.chip[aria-pressed="true"]{ background: var(--accent); border-color: var(--accent); color: #fff; }
.result-count{ color: var(--muted); font-size: .85rem; margin: 0 0 14px; }

.lesson-grid{
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}
.lesson-card{
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-alt);
  text-decoration: none;
  color: var(--ink);
  box-shadow: var(--shadow);
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.lesson-card:hover{ transform: translateY(-2px); box-shadow: var(--shadow-lift); border-color: var(--accent); }
.lesson-card .lesson-num{
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 34px; height: 24px; padding: 0 8px;
  border-radius: 999px;
  font-size: .75rem; font-weight: 800;
  align-self: flex-start;
}
.lesson-card.ot .lesson-num{ background: var(--ot-soft); color: var(--ot); }
.lesson-card.nt .lesson-num{ background: var(--nt-soft); color: var(--nt); }
.lesson-card h3{ margin: 0; font-size: 1rem; line-height: 1.35; }
.lesson-card .meta-row{ display: flex; gap: 6px; flex-wrap: wrap; margin-top: auto; }

.age-badge{
  display: inline-flex; align-items: center; gap: 3px;
  font-size: .72rem; font-weight: 700;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-dark);
}
.age-badge .stars{ letter-spacing: 1px; }
.badge-fulltext{
  font-size: .7rem; font-weight: 700;
  padding: 3px 8px; border-radius: 999px;
  background: var(--ot-soft); color: var(--ot);
}

.empty-state{
  text-align: center;
  padding: 60px 20px;
  color: var(--muted);
}

/* pager */
.pager{ display: flex; justify-content: center; gap: 8px; margin-top: 26px; flex-wrap: wrap; }
.pager button{
  min-width: 38px; height: 38px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-alt);
  color: var(--ink-soft);
  cursor: pointer;
}
.pager button[aria-current="true"]{ background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 700; }
.pager button:disabled{ opacity: .4; cursor: not-allowed; }

/* ---------- Breadcrumb ---------- */
.breadcrumb{
  display: flex; flex-wrap: wrap; gap: 6px; align-items: center;
  font-size: .85rem; color: var(--muted);
  margin-bottom: 18px;
}
.breadcrumb a{ color: var(--accent-dark); text-decoration: none; font-weight: 600; }

/* ---------- Lesson detail ---------- */
.lesson-header{
  display: flex; flex-wrap: wrap; gap: 14px; align-items: flex-start; justify-content: space-between;
  margin-bottom: 22px;
}
.lesson-header h1{ margin: 0 0 8px; font-size: clamp(1.3rem, 3vw, 1.7rem); }
.lesson-header .badges{ display: flex; gap: 6px; flex-wrap: wrap; }
.testament-pill{
  font-size: .74rem; font-weight: 800; text-transform: uppercase; letter-spacing: .04em;
  padding: 4px 10px; border-radius: 999px;
}
.testament-pill.ot{ background: var(--ot-soft); color: var(--ot); }
.testament-pill.nt{ background: var(--nt-soft); color: var(--nt); }

.lesson-nav-buttons{ display: flex; gap: 8px; flex: 0 0 auto; }
.btn{
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 15px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-alt);
  color: var(--ink);
  text-decoration: none;
  font-size: .85rem; font-weight: 700;
  cursor: pointer;
}
.btn:hover{ border-color: var(--accent); color: var(--accent-dark); }
.btn.primary{ background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover{ background: var(--accent-dark); }
.btn[disabled]{ opacity: .4; pointer-events: none; }

.age-legend{
  display: flex; flex-wrap: wrap; gap: 10px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: .82rem;
  margin-bottom: 24px;
}
.age-legend b{ letter-spacing: 1px; }

.fulltext-toggle{ margin-bottom: 10px; }
.fulltext-box{
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  margin-bottom: 32px;
  font-size: .98rem;
}
.fulltext-box p{ margin: 0 0 12px; }
.fulltext-box p:last-child{ margin-bottom: 0; }

.item-groups{ display: flex; flex-direction: column; gap: 26px; }
.item-group-header{
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px;
  margin: 0 0 12px;
}
.item-group h2{
  font-size: 1.02rem;
  margin: 0;
  display: flex; align-items: center; gap: 8px;
}
.btn-small{ padding: 6px 12px; font-size: .78rem; }
.item-grid{
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}
.item-card{
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-alt);
  overflow: hidden;
  display: flex; flex-direction: column;
}
.item-thumb{
  aspect-ratio: 1.41;
  background: var(--bg);
  cursor: zoom-in;
  overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.item-thumb img{ width: 100%; height: 100%; object-fit: contain; }
.item-info{ padding: 8px 10px 10px; display: flex; flex-direction: column; gap: 6px; }
.item-info .label{ font-size: .78rem; color: var(--ink-soft); line-height: 1.3; min-height: 2.5em; }
.item-info .link-row{ display: flex; gap: 10px; align-items: center; }
.item-info .pdf-link{
  font-size: .78rem; font-weight: 700;
  color: var(--accent-dark);
  text-decoration: none;
  display: inline-flex; align-items: center; gap: 4px;
}
.item-info .pdf-download{
  font-size: .78rem;
  color: var(--muted);
  text-decoration: none;
  display: inline-flex; align-items: center; gap: 3px;
}
.item-info .pdf-download:hover{ color: var(--accent-dark); }
.item-info .pdf-link.unavailable{ color: var(--muted); pointer-events: none; text-decoration: line-through; }

/* ---------- About / instructions ---------- */
.prose{ max-width: 74ch; }
.prose h2{ margin-top: 34px; font-size: 1.15rem; }
.prose p{ color: var(--ink-soft); }
.prose ul{ color: var(--ink-soft); }

/* ---------- Lightbox ---------- */
.lightbox{
  position: fixed; inset: 0; z-index: 100;
  background: rgba(15,12,7,.88);
  display: flex; align-items: center; justify-content: center;
  padding: 30px;
}
.lightbox[hidden]{ display: none; }
.lightbox img{ max-width: 100%; max-height: 100%; border-radius: 8px; box-shadow: var(--shadow-lift); }
.lightbox-close{
  position: absolute; top: 16px; right: 20px;
  width: 42px; height: 42px;
  border-radius: 50%;
  border: none;
  background: rgba(255,255,255,.15);
  color: #fff;
  font-size: 1.6rem;
  cursor: pointer;
  line-height: 1;
}
.lightbox-close:hover{ background: rgba(255,255,255,.3); }

/* ---------- Skeleton / loading ---------- */
.loading{ text-align: center; padding: 60px 0; color: var(--muted); }
.spinner{
  width: 28px; height: 28px; margin: 0 auto 12px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .8s linear infinite;
}
@keyframes spin{ to{ transform: rotate(360deg); } }

/* ---------- Responsive ---------- */
@media (max-width: 760px){
  .nav-toggle{ display: flex; }
  .main-nav{
    position: absolute;
    top: var(--header-h);
    left: 0; right: 0;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 8px;
    display: none;
    box-shadow: var(--shadow);
  }
  .main-nav.open{ display: flex; }
  .header-search{ display: none; }
  .header-inner{ gap: 10px; }
  .brand-text small{ display: none; }
  .lesson-header{ flex-direction: column; }
  .btn-donate{ padding: 7px 12px; font-size: .82rem; }
}

@media (max-width: 420px){
  .brand-text{ display: none; }
  .header-inner{ gap: 8px; }
}

@media print{
  body{ background: #fff; color: #000; }
  .site-header, .site-footer, .toolbar, .breadcrumb,
  .fulltext-toggle, .pager, .lightbox, .lesson-nav-buttons{ display: none !important; }
  .fulltext-box{ display: block !important; border: none; padding: 0; box-shadow: none; }
  .item-thumb{ display: none !important; }
  .item-grid{ grid-template-columns: 1fr; gap: 4px; }
  .item-card{ border: none; flex-direction: row; gap: 8px; }
  .item-info .pdf-link::after{ content: " (" attr(href) ")"; font-weight: 400; color: #333; }
  .item-info .pdf-download{ display: none; }
  a{ color: #000; }
}