/* ============================================================
   BookB — "Ink & Champagne" design system
   Tokens: --ink (bg) --card --gold (accent) --paper (text) --sage (success)
   Components: .bb-shell .bb-nav .bb-btn[-gold|-ghost|-sm] .bb-card .bb-cover
   .bb-shelf .bb-hero .bb-badge[-new] .bb-input .bb-label .bb-err .bb-table
   .bb-flash[-ok|-warn] .bb-price-card .bb-reader .bb-pag .bb-stat
   ============================================================ */

:root {
  --ink: #0B0A09;
  --ink-2: #121009;
  --card: #16130F;
  --card-2: #1D1913;
  --line: #2A241B;
  --gold: #D7B57A;
  --gold-2: #E8CD96;
  --paper: #EFE7D8;
  --paper-dim: #B7AD9C;
  --sage: #7FD6A2;
  --danger: #E08A7A;
  --serif: 'Fraunces', Georgia, serif;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --r: 14px;
  --shadow: 0 18px 48px rgba(0,0,0,.55);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--gold); text-decoration: none; }
a:hover { color: var(--gold-2); }
h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.15; letter-spacing: -.01em; }

.bb-shell { max-width: 1160px; margin: 0 auto; padding: 0 22px; }

/* ---------- Nav ---------- */
.bb-nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(11,10,9,.86); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.bb-nav-inner { display: flex; align-items: center; justify-content: space-between; height: 66px; gap: 18px; }
.bb-logo { font-family: var(--serif); font-weight: 700; font-size: 1.5rem; color: var(--paper); letter-spacing: .01em; white-space: nowrap; }
.bb-logo span { color: var(--gold); }
.bb-logo-sm { font-size: 1.2rem; }
.bb-nav-links { display: flex; align-items: center; gap: 20px; }
.bb-nav-links-scroll { overflow-x: auto; scrollbar-width: none; }
.bb-nav-link { color: var(--paper-dim); font-size: .93rem; font-weight: 500; white-space: nowrap; }
.bb-nav-link:hover { color: var(--paper); }
.bb-inline-form { display: inline; }
.bb-linkbtn { background: none; border: 0; cursor: pointer; font: inherit; padding: 0; }
.bb-admin-tag { font-style: normal; font-family: var(--sans); font-size: .68rem; color: var(--gold); border: 1px solid var(--line); padding: 2px 7px; border-radius: 999px; vertical-align: middle; margin-left: 6px; }

/* ---------- Buttons ---------- */
.bb-btn {
  display: inline-block; padding: 12px 24px; border-radius: 999px;
  font-weight: 600; font-size: .95rem; font-family: var(--sans);
  border: 1px solid var(--line); color: var(--paper); background: var(--card);
  cursor: pointer; transition: transform .15s ease, background .15s ease, color .15s ease;
  text-align: center;
}
.bb-btn:hover { transform: translateY(-1px); color: var(--paper); }
.bb-btn-gold { background: var(--gold); border-color: var(--gold); color: #1A1508; }
.bb-btn-gold:hover { background: var(--gold-2); color: #1A1508; }
.bb-btn-ghost { background: transparent; }
.bb-btn-sm { padding: 8px 16px; font-size: .85rem; }
.bb-btn-danger { border-color: rgba(224,138,122,.4); color: var(--danger); background: transparent; }
.bb-btn[disabled] { opacity: .5; cursor: not-allowed; }

/* ---------- Hero ---------- */
.bb-hero { padding: 84px 0 60px; position: relative; overflow: hidden; }
.bb-hero::before {
  content: ''; position: absolute; inset: -40% -20% auto;  height: 130%;
  background: radial-gradient(ellipse at 30% 0%, rgba(215,181,122,.10), transparent 55%),
              radial-gradient(ellipse at 75% 20%, rgba(215,181,122,.05), transparent 50%);
  pointer-events: none;
}
.bb-hero h1 { font-size: clamp(2.3rem, 5.4vw, 3.9rem); max-width: 15ch; position: relative; }
.bb-hero h1 em { font-style: italic; color: var(--gold); }
.bb-hero p.bb-lede { font-size: 1.13rem; color: var(--paper-dim); max-width: 54ch; margin: 20px 0 30px; position: relative; }
.bb-hero-cta { display: flex; gap: 14px; flex-wrap: wrap; position: relative; }

/* ---------- Sections / shelves ---------- */
.bb-section { padding: 44px 0; }
.bb-section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 22px; }
.bb-section-head h2 { font-size: 1.65rem; }
.bb-section-head a { font-size: .9rem; }
.bb-shelf { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 26px; }

/* ---------- Book card / cover ---------- */
.bb-book-card { display: block; color: var(--paper); }
.bb-book-card:hover { color: var(--paper); }
.bb-cover {
  aspect-ratio: 2/3; border-radius: 10px; overflow: hidden;
  background: var(--card); border: 1px solid var(--line);
  box-shadow: 0 10px 28px rgba(0,0,0,.45);
  transition: transform .2s ease, box-shadow .2s ease;
}
.bb-book-card:hover .bb-cover { transform: translateY(-4px); box-shadow: var(--shadow); }
.bb-cover img, .bb-cover svg { width: 100%; height: 100%; object-fit: cover; }
.bb-book-meta { padding: 12px 2px 0; }
.bb-book-title { font-family: var(--serif); font-weight: 600; font-size: 1.02rem; line-height: 1.25; }
.bb-book-sub { color: var(--paper-dim); font-size: .82rem; margin-top: 4px; }

/* ---------- Badges ---------- */
.bb-badge {
  display: inline-block; font-size: .72rem; font-weight: 600; letter-spacing: .06em;
  text-transform: uppercase; padding: 4px 10px; border-radius: 999px;
  border: 1px solid var(--line); color: var(--paper-dim);
}
.bb-badge-new { border-color: rgba(127,214,162,.45); color: var(--sage); }
.bb-badge-gold { border-color: rgba(215,181,122,.5); color: var(--gold); }

/* ---------- Cards / panels ---------- */
.bb-card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--r); padding: 26px;
}
.bb-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.bb-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }

/* ---------- Flash ---------- */
.bb-flash { margin: 16px 0; padding: 13px 18px; border-radius: 10px; font-size: .93rem; border: 1px solid; }
.bb-flash-ok { border-color: rgba(127,214,162,.4); color: var(--sage); background: rgba(127,214,162,.06); }
.bb-flash-warn { border-color: rgba(215,181,122,.45); color: var(--gold-2); background: rgba(215,181,122,.06); }

/* ---------- Forms ---------- */
.bb-label { display: block; font-size: .84rem; font-weight: 600; color: var(--paper-dim); margin: 16px 0 6px; }
.bb-input, select.bb-input, textarea.bb-input {
  width: 100%; padding: 12px 15px; border-radius: 10px;
  background: var(--ink-2); color: var(--paper);
  border: 1px solid var(--line); font: inherit; font-size: .95rem;
}
.bb-input:focus { outline: none; border-color: var(--gold); }
textarea.bb-input { min-height: 130px; resize: vertical; }
.bb-err { color: var(--danger); font-size: .84rem; margin-top: 5px; }
.bb-auth-card { max-width: 430px; margin: 60px auto; }
.bb-auth-card h1 { font-size: 1.8rem; margin-bottom: 6px; }
.bb-auth-card .bb-muted { margin-bottom: 8px; }

/* ---------- Tables ---------- */
.bb-table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r); }
.bb-table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.bb-table th {
  text-align: left; padding: 12px 16px; color: var(--paper-dim);
  font-size: .75rem; text-transform: uppercase; letter-spacing: .07em;
  border-bottom: 1px solid var(--line); background: var(--card);
}
.bb-table td { padding: 12px 16px; border-bottom: 1px solid var(--line); vertical-align: middle; }
.bb-table tr:last-child td { border-bottom: 0; }
.bb-table tr:hover td { background: rgba(215,181,122,.03); }

/* ---------- Pricing ---------- */
.bb-price-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 26px; align-items: stretch; }
.bb-price-card { position: relative; display: flex; flex-direction: column; gap: 10px; }
.bb-price-card.bb-featured { border-color: var(--gold); box-shadow: 0 0 0 1px var(--gold), var(--shadow); }
.bb-price-amount { font-family: var(--serif); font-size: 2.5rem; font-weight: 700; }
.bb-price-amount small { font-family: var(--sans); font-size: .95rem; color: var(--paper-dim); font-weight: 500; }
.bb-price-feat { list-style: none; color: var(--paper-dim); font-size: .92rem; flex: 1; }
.bb-price-feat li { padding: 6px 0 6px 26px; position: relative; }
.bb-price-feat li::before { content: '✓'; position: absolute; left: 2px; color: var(--sage); }

/* ---------- Product (book) page ---------- */
.bb-product { display: grid; grid-template-columns: 300px 1fr; gap: 48px; padding: 56px 0; align-items: start; }
.bb-product .bb-cover { max-width: 300px; }
.bb-product h1 { font-size: clamp(1.8rem, 3.6vw, 2.7rem); }
.bb-product .bb-sub { color: var(--paper-dim); font-size: 1.1rem; margin-top: 10px; }
.bb-meta-row { display: flex; gap: 10px; flex-wrap: wrap; margin: 18px 0; }
.bb-toc { list-style: none; margin: 10px 0; }
.bb-toc li { padding: 9px 0; border-bottom: 1px solid var(--line); color: var(--paper-dim); font-size: .95rem; display: flex; gap: 12px; }
.bb-toc li:last-child { border-bottom: 0; }
.bb-toc .bb-toc-n { color: var(--gold); font-family: var(--serif); min-width: 1.6em; }
.bb-preview { margin-top: 30px; }
.bb-preview-body { position: relative; max-height: 520px; overflow: hidden; }
.bb-preview-body::after {
  content: ''; position: absolute; inset: auto 0 0; height: 200px;
  background: linear-gradient(transparent, var(--ink));
}

/* ---------- Prose (chapter content) ---------- */
.bb-prose { font-family: var(--serif); font-size: 1.1rem; line-height: 1.8; max-width: 66ch; }
.bb-prose p { margin: 0 0 1.2em; }
.bb-prose h3 { font-size: 1.35rem; margin: 1.8em 0 .7em; color: var(--gold-2); }
.bb-prose ul, .bb-prose ol { margin: 0 0 1.2em 1.3em; }
.bb-prose li { margin-bottom: .45em; }
.bb-prose blockquote { border-left: 3px solid var(--gold); padding: 6px 0 6px 20px; margin: 1.5em 0; font-style: italic; color: var(--paper-dim); }

/* ---------- Reader ---------- */
.bb-reader-bar {
  position: sticky; top: 0; z-index: 40; display: flex; align-items: center; gap: 14px;
  padding: 12px 20px; background: rgba(11,10,9,.9); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line); font-size: .88rem;
}
.bb-reader-bar .bb-spacer { flex: 1; }
.bb-reader-progress { height: 3px; background: var(--line); position: sticky; top: 0; z-index: 41; }
.bb-reader-progress i { display: block; height: 100%; background: var(--gold); width: 0; }
.bb-reader { padding: 48px 22px 120px; }
.bb-reader .bb-prose { margin: 0 auto; }
.bb-reader-h { font-size: clamp(1.7rem, 3.5vw, 2.4rem); text-align: center; margin-bottom: 8px; }
.bb-reader-ch { text-align: center; color: var(--paper-dim); font-size: .9rem; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 46px; }
.bb-reader-nav { display: flex; justify-content: space-between; max-width: 66ch; margin: 60px auto 0; gap: 14px; }
body[data-rt="paper"] .bb-reader-page { background: var(--paper); color: #22201B; }
body[data-rt="paper"] .bb-reader-page .bb-prose h3 { color: #7A5C22; }
body[data-rt="paper"] .bb-reader-page .bb-prose blockquote { color: #5B564C; }
body[data-rt="sepia"] .bb-reader-page { background: #F4E8D0; color: #3B3226; }
body[data-rt="sepia"] .bb-reader-page .bb-prose h3 { color: #8A6A28; }
.bb-reader-page { transition: background .25s, color .25s; }
.bb-rt-btn { width: 26px; height: 26px; border-radius: 50%; border: 1px solid var(--line); cursor: pointer; }
.bb-rt-ink { background: #0B0A09; }
.bb-rt-paper { background: #EFE7D8; }
.bb-rt-sepia { background: #F4E8D0; }
.bb-fs-btn { background: none; border: 1px solid var(--line); color: var(--paper-dim); border-radius: 8px; padding: 3px 10px; cursor: pointer; font-size: .85rem; }

/* ---------- Paywall ---------- */
.bb-paywall { text-align: center; padding: 46px 26px; margin-top: 30px; }
.bb-paywall h3 { font-size: 1.5rem; margin-bottom: 10px; }
.bb-paywall p { color: var(--paper-dim); max-width: 46ch; margin: 0 auto 22px; }

/* ---------- Pagination ---------- */
.bb-pag { display: flex; gap: 8px; justify-content: center; margin: 40px 0 10px; flex-wrap: wrap; }
.bb-pag a, .bb-pag span {
  padding: 8px 15px; border-radius: 8px; border: 1px solid var(--line);
  font-size: .88rem; color: var(--paper-dim);
}
.bb-pag a:hover { color: var(--gold); border-color: var(--gold); }
.bb-pag .bb-pag-cur { background: var(--gold); color: #1A1508; border-color: var(--gold); font-weight: 600; }

/* ---------- Admin ---------- */
.bb-admin-body { background: var(--ink); }
.bb-admin-nav { border-bottom-color: rgba(215,181,122,.25); }
.bb-admin-main { padding-top: 30px; padding-bottom: 80px; }
.bb-admin-main h1 { font-size: 1.7rem; margin-bottom: 22px; }
.bb-stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 18px; margin-bottom: 30px; }
.bb-stat { padding: 20px; }
.bb-stat .bb-stat-n { font-family: var(--serif); font-size: 2rem; font-weight: 700; color: var(--gold); }
.bb-stat .bb-stat-l { color: var(--paper-dim); font-size: .82rem; text-transform: uppercase; letter-spacing: .07em; }
.bb-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }

/* ---------- Misc ---------- */
.bb-muted { color: var(--paper-dim); }
.bb-small { font-size: .85rem; }
.bb-mt { margin-top: 18px; }
.bb-mb { margin-bottom: 18px; }
.bb-empty { text-align: center; color: var(--paper-dim); padding: 60px 20px; }
.bb-empty h3 { color: var(--paper); margin-bottom: 8px; }
.bb-divider { border: 0; border-top: 1px solid var(--line); margin: 30px 0; }
.bb-kicker { color: var(--gold); font-size: .8rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 12px; }

/* ---------- Footer ---------- */
.bb-footer { border-top: 1px solid var(--line); margin-top: 70px; padding: 46px 0 30px; }
.bb-footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 34px; }
.bb-footer-h { font-family: var(--sans); font-size: .8rem; text-transform: uppercase; letter-spacing: .1em; color: var(--paper-dim); margin-bottom: 12px; }
.bb-footer-grid a { display: block; color: var(--paper-dim); font-size: .9rem; padding: 4px 0; }
.bb-footer-grid a:hover { color: var(--gold); }
.bb-footer-note { color: var(--paper-dim); font-size: .88rem; margin-top: 10px; max-width: 44ch; }
.bb-ai-note { font-size: .8rem; opacity: .8; }
.bb-footer-legal { border-top: 1px solid var(--line); margin-top: 34px; padding-top: 20px; color: var(--paper-dim); font-size: .8rem; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .bb-grid-2, .bb-grid-3 { grid-template-columns: 1fr; }
  .bb-product { grid-template-columns: 1fr; gap: 30px; }
  .bb-product .bb-cover { max-width: 220px; }
  .bb-footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .bb-hero { padding: 56px 0 40px; }
  .bb-shelf { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 18px; }
  .bb-nav-links { gap: 14px; overflow-x: auto; scrollbar-width: none; }
}