:root {
  --bg: #fff8d7;
  --surface: #fffdf7;
  --surface-warm: #ffefc4;
  --surface-soft: #fff5e3;
  --fg: #20183b;
  --fg-2: #544a73;
  --muted: #7d7395;
  --meta: #ff6b00;
  --border: #eadfba;
  --border-soft: #f4ebd1;
  --accent: #ff6b00;
  --accent-2: #f2b64b;
  --accent-on: #ffffff;
  --cyan: #5ec8dd;
  --success: #2e9d57;
  --warn: #ffb020;
  --danger: #df4e4e;
  --font-display: Inter, system-ui, sans-serif;
  --font-body: Inter, system-ui, sans-serif;
  --font-mono: "SF Mono", ui-monospace, Menlo, monospace;
  --text-xs: 12px;
  --text-sm: 14px;
  --text-base: 16px;
  --text-lg: 18px;
  --text-xl: 24px;
  --text-2xl: 34px;
  --text-3xl: 54px;
  --text-4xl: 72px;
  --leading-body: 1.58;
  --leading-tight: 1.02;
  --tracking-display: -0.028em;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --section-y-desktop: 88px;
  --section-y-tablet: 64px;
  --section-y-phone: 44px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-pill: 9999px;
  --elev-ring: 0 0 0 1px rgba(32, 24, 59, 0.04);
  --elev-raised: 0 20px 44px rgba(32, 24, 59, 0.12);
  --elev-soft: 0 10px 24px rgba(32, 24, 59, 0.08);
  --focus-ring: 0 0 0 4px rgba(255, 107, 0, 0.24);
  --motion-fast: 150ms;
  --motion-base: 220ms;
  --ease-standard: cubic-bezier(0.23, 1, 0.32, 1);
  --container-max: 1200px;
  --container-gutter-desktop: 36px;
  --container-gutter-tablet: 24px;
  --container-gutter-phone: 16px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top right, rgba(255, 182, 77, 0.22), transparent 24%),
    radial-gradient(circle at top left, rgba(94, 200, 221, 0.12), transparent 26%),
    linear-gradient(180deg, #fff9e3 0%, #fffdf8 100%);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-body);
}
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
img { display: block; max-width: 100%; }
.shell { min-height: 100vh; }
.container { width: min(100%, var(--container-max)); margin: 0 auto; padding-inline: var(--container-gutter-desktop); }
main { padding-bottom: var(--space-16); }
section { padding: var(--section-y-desktop) 0; }
.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: rgba(255, 249, 228, 0.82);
  border-bottom: 1px solid rgba(234, 223, 186, 0.78);
}
.topbar-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-5);
  min-height: 82px;
}
.brand-lockup { display: flex; align-items: center; gap: var(--space-3); min-width: 0; }
.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  border: 1px solid rgba(32, 24, 59, 0.08);
  box-shadow: var(--elev-soft);
  position: relative;
}
.brand-mark::before,
.brand-mark::after {
  content: "";
  position: absolute;
  background: rgba(255,255,255,0.92);
  border-radius: 999px;
}
.brand-mark::before { inset: 9px 11px 20px 11px; }
.brand-mark::after { inset: 21px 11px 9px 17px; }
.brand-copy strong {
  display: block;
  font-size: 18px;
  line-height: 1;
  letter-spacing: var(--tracking-display);
}
.brand-copy span { display: block; font-size: var(--text-sm); color: var(--muted); white-space: nowrap; }
.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--fg);
  align-items: center;
  justify-content: center;
  gap: 4px;
  flex-direction: column;
}
.menu-toggle span { width: 18px; height: 2px; background: currentColor; border-radius: 999px; }
.nav-links {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 4px;
  min-width: 0;
}
.nav-links a {
  padding: 10px 12px;
  border-radius: var(--radius-pill);
  color: var(--fg-2);
  font-size: 15px;
  white-space: nowrap;
  transition: background var(--motion-fast) var(--ease-standard), color var(--motion-fast) var(--ease-standard), transform var(--motion-fast) var(--ease-standard);
}
.nav-links a:hover,
.nav-links a.is-active { background: rgba(255,255,255,0.75); color: var(--fg); transform: translateY(-1px); }
.topbar-actions { display: flex; align-items: center; gap: 10px; }
.topbar-search {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 250px;
  padding: 0 14px;
  min-height: 46px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255,255,255,0.82);
}
.topbar-search input { border: 0; outline: 0; background: transparent; width: 100%; color: var(--fg); }
.topbar-search svg,
.search-icon { width: 18px; height: 18px; color: var(--muted); flex: none; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  color: var(--fg);
  cursor: pointer;
  transition: transform var(--motion-fast) var(--ease-standard), background var(--motion-fast) var(--ease-standard), border-color var(--motion-fast) var(--ease-standard), box-shadow var(--motion-fast) var(--ease-standard);
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--elev-soft); }
.btn:focus-visible,
.search-input:focus-visible,
.select:focus-visible,
.menu-toggle:focus-visible,
.icon-btn:focus-visible,
.chip:focus-visible,
.chip-toggle input:focus-visible + span {
  outline: none;
  box-shadow: var(--focus-ring);
}
.btn-primary { background: var(--accent); color: var(--accent-on); border-color: rgba(0,0,0,0.08); }
.btn-primary:hover { background: #ed6400; }
.btn-secondary { background: rgba(255,255,255,0.78); }
.btn-ghost { background: transparent; }
.btn-small { min-height: 40px; padding-inline: 14px; font-size: 14px; }
.icon-btn {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--fg);
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.74);
  color: var(--fg-2);
  font-size: var(--text-sm);
}
.hero {
  position: relative;
  overflow: clip;
  padding: 76px 0 42px;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.03fr) minmax(440px, 0.97fr);
  gap: var(--space-8);
  align-items: center;
}
.hero-copy { max-width: 640px; }
.hero h1,
.page-hero h1,
.detail-copy h1 {
  margin: 18px 0 18px;
  font-size: clamp(38px, 5vw, 64px);
  line-height: 0.96;
  letter-spacing: var(--tracking-display);
  text-wrap: balance;
}
.hero .lead,
.page-hero .lead,
.detail-copy .lead {
  max-width: 62ch;
  color: var(--fg-2);
  font-size: 18px;
}
.hero-search {
  margin-top: 24px;
  padding: 18px;
  border-radius: 30px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.82);
  box-shadow: var(--elev-raised);
}
.hero-search-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
}
.search-input,
.select {
  width: 100%;
  min-height: 52px;
  padding: 0 16px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.88);
  color: var(--fg);
}
.search-input-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 56px;
  padding: 0 16px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: #fffdfa;
}
.search-input-wrap input { border: 0; outline: 0; background: transparent; width: 100%; }
.suggestions,
.hero-actions,
.card-actions,
.strip,
.quick-chips,
.applied-filters,
.ranking-list,
.book-inline-meta,
.detail-facts,
.goal-books,
.drawer-actions,
.search-panels,
.hero-benefits,
.card-tags,
.collection-stack,
.detail-actions,
.library-actions,
.testimonial-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.hero-search-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 16px;
}
.hero-benefits { margin-top: 22px; }
.hero-benefits .chip,
.quick-chips .chip,
.applied-filters .chip,
.suggestions .chip,
.strip .chip,
.card-tags .chip,
.goal-books .chip,
.collection-stack .chip,
.book-inline-meta .chip,
.detail-facts .chip {
  cursor: pointer;
}
.chip,
.status-pill,
.mini-tag,
.meta-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 32px;
  padding: 0 12px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.74);
  color: var(--fg-2);
  font-size: 13px;
}
.chip.is-accent,
.status-pill.is-accent { background: rgba(255, 107, 0, 0.1); color: var(--accent); border-color: rgba(255,107,0,0.18); }
.status-pill.is-success { background: rgba(46,157,87,0.12); color: var(--success); border-color: rgba(46,157,87,0.16); }
.status-pill.is-warm { background: rgba(242,182,75,0.16); color: #7b4d00; border-color: rgba(242,182,75,0.2); }
.hero-stage { position: relative; min-height: 560px; }
.glow-band,
.parallax-layer,
.hero-stack,
.floating-panel,
.hero-card,
.stack-book { position: absolute; }
.glow-band {
  right: 8%;
  top: 2%;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 107, 0, 0.22), transparent 68%);
  filter: blur(16px);
}
.parallax-layer {
  inset: 10% 2% 0 12%;
  border-radius: 36px;
  border: 1px solid rgba(234, 223, 186, 0.88);
  background: linear-gradient(155deg, rgba(255,255,255,0.7), rgba(255, 239, 196, 0.48));
  box-shadow: var(--elev-soft);
}
.hero-stack { inset: 6% auto auto 0; width: 280px; height: 400px; }
.stack-book {
  width: 180px;
  height: 248px;
  border-radius: 24px;
  border: 1px solid rgba(255,255,255,0.28);
  box-shadow: var(--elev-raised);
  overflow: hidden;
  padding: 20px 18px;
  display: flex;
  align-items: flex-end;
  color: #fff;
  font-size: 24px;
  line-height: 1.02;
  font-weight: 700;
}
.stack-book::after {
  content: "";
  position: absolute;
  inset: auto 18px 18px 18px;
  height: 2px;
  background: rgba(255,255,255,0.48);
  box-shadow: 0 -10px 0 rgba(255,255,255,0.28);
}
.stack-book.book-1 { left: 34px; top: 44px; transform: rotate(-14deg); }
.stack-book.book-2 { left: 120px; top: 8px; transform: rotate(8deg); }
.stack-book.book-3 { left: 86px; top: 162px; transform: rotate(4deg); }
.hero-card {
  right: 0;
  top: 88px;
  width: min(100%, 430px);
  padding: 24px;
  border-radius: 32px;
  border: 1px solid var(--border);
  background: rgba(255, 253, 247, 0.92);
  box-shadow: var(--elev-raised);
}
.hero-book { display: grid; grid-template-columns: 144px minmax(0, 1fr); gap: 18px; align-items: center; }
.book-cover {
  position: relative;
  overflow: hidden;
  border-radius: 22px;
  min-height: 200px;
  box-shadow: var(--elev-soft);
  border: 1px solid rgba(255,255,255,0.24);
}
.book-cover span {
  position: absolute;
  inset: 16px;
  display: flex;
  align-items: flex-end;
  color: #fff;
  line-height: 1;
  font-size: 25px;
  font-weight: 700;
  letter-spacing: -0.03em;
}
.book-cover::before,
.book-cover::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  height: 2px;
  background: rgba(255,255,255,0.4);
}
.book-cover::before { bottom: 22px; }
.book-cover::after { bottom: 34px; right: 42%; }
.floating-panel {
  left: 12px;
  bottom: 10px;
  max-width: 230px;
  padding: 18px;
  border-radius: 24px;
  background: rgba(32, 24, 59, 0.94);
  color: #fff;
  box-shadow: var(--elev-raised);
}
.floating-panel strong,
.floating-panel span { display: block; }
.rating-row,
.meta-row,
.section-head,
.split-head,
.toolbar,
.toolbar-meta,
.toolbar-actions,
.panel-head,
.collection-head,
.ranking-row,
.ranking-meta,
.detail-top,
.detail-rating,
.filter-head,
.page-hero-aside,
.newsletter-grid,
.goal-head {
  display: flex;
  align-items: center;
  gap: 12px;
}
.section-head,
.split-head,
.toolbar { justify-content: space-between; }
.section-head,
.split-head { align-items: end; margin-bottom: 24px; }
.section-head h2,
.split-head h2,
.surface-card h2,
.detail-panel h2,
.side-panel h2,
.history-card h2,
.filter-block h3 { margin: 0; }
.section-head p,
.split-head p,
.surface-card p,
.collection-card p,
.category-card p,
.history-card p,
.library-card p,
.detail-panel p,
.side-panel p,
.empty-state p,
.ranking-row p,
.goal-panel p,
.goal-book-card p,
.newsletter-panel p,
.search-note,
.panel-note,
.page-header p,
.stat-panel p { color: var(--fg-2); }
.search-band,
.stats-band { padding-top: 28px; }
.stats-grid,
.category-grid,
.cards-grid,
.collections-grid,
.detail-grid,
.library-grid,
.editorial-row,
.goal-grid,
.ranking-grid,
.search-panels,
.detail-sections,
.library-stack,
.footer-grid,
.categories-grid-rich,
.collection-library,
.facts-grid,
.newsletter-grid,
.page-hero-grid,
.catalog-layout {
  display: grid;
  gap: 18px;
}
.stats-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.category-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.cards-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.collections-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.goal-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.ranking-grid { grid-template-columns: 1.1fr 0.9fr; }
.page-hero-grid { grid-template-columns: 1fr 360px; align-items: end; }
.catalog-layout { grid-template-columns: 320px minmax(0, 1fr); }
.detail-grid { grid-template-columns: 320px minmax(0, 1fr) 320px; align-items: start; }
.library-grid { grid-template-columns: 1.05fr 0.95fr; }
.editorial-row { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.footer-grid { grid-template-columns: 1.2fr repeat(3, minmax(0, 1fr)); }
.surface-card,
.stat-panel,
.category-card,
.card,
.collection-card,
.empty-state,
.detail-panel,
.side-panel,
.history-card,
.library-card,
.goal-panel,
.search-result,
.filter-shell,
.newsletter-panel,
.ranking-panel,
.fact-panel,
.promo-banner {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.88);
  box-shadow: var(--elev-ring);
}
.surface-card,
.stat-panel,
.category-card,
.collection-card,
.empty-state,
.detail-panel,
.side-panel,
.history-card,
.library-card,
.goal-panel,
.filter-shell,
.newsletter-panel,
.ranking-panel,
.fact-panel,
.promo-banner { padding: 22px; }
.card { overflow: hidden; transition: transform var(--motion-base) var(--ease-standard), box-shadow var(--motion-base) var(--ease-standard); }
.card:hover { transform: translateY(-6px); box-shadow: var(--elev-raised); }
.card-body { padding: 18px; }
.card-cover-wrap { position: relative; padding: 18px; background: linear-gradient(180deg, rgba(255,255,255,0.8), rgba(255, 239, 196, 0.36)); }
.card .book-cover { min-height: 250px; }
.card h3,
.collection-card h3,
.goal-panel h3,
.goal-book-card h4,
.ranking-row h3 { margin: 0; font-size: 22px; line-height: 1.08; text-wrap: balance; }
.card-meta-line,
.card-price-line,
.goal-book-card,
.fact-panel strong,
.ranking-meta strong,
.category-card strong,
.collection-card strong,
.stat-panel strong,
.empty-state strong,
.newsletter-panel strong,
.promo-banner strong { display: block; }
.card-price-line { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-top: 14px; }
.price { font-size: 22px; line-height: 1; letter-spacing: -0.03em; }
.meta-subtle { color: var(--muted); font-size: 14px; }
.stat-panel strong { font-size: 34px; line-height: 0.94; }
.stat-icon,
.category-icon {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 107, 0, 0.1);
  color: var(--accent);
  font-weight: 700;
}
.category-card { min-height: 234px; display: grid; align-content: start; gap: 14px; }
.category-card strong { font-size: 22px; line-height: 1.04; }
.category-footer,
.collection-footer { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-top: auto; }
.card-carousel {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(300px, 1fr);
  gap: 18px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: thin;
}
.ranking-panel { display: grid; gap: 16px; }
.ranking-row {
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  border-top: 1px solid var(--border-soft);
}
.ranking-row:first-child { padding-top: 0; border-top: 0; }
.ranking-row .book-mini-cover {
  width: 74px;
  min-width: 74px;
  height: 104px;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--elev-soft);
}
.rank-number {
  width: 44px;
  min-width: 44px;
  height: 44px;
  border-radius: 14px;
  background: rgba(255, 107, 0, 0.12);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}
.goal-panel { display: grid; gap: 18px; }
.goal-books { margin-top: 10px; }
.goal-book-card {
  padding: 16px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.72);
}
.collection-card {
  min-height: 272px;
  display: grid;
  gap: 20px;
  align-content: space-between;
  background: linear-gradient(145deg, rgba(255, 239, 196, 0.56), rgba(255,255,255,0.88));
}
.collection-stack .chip { background: rgba(255,255,255,0.74); }
.promo-banner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  background: linear-gradient(135deg, rgba(32,24,59,0.96), rgba(88,70,134,0.92));
  color: #fff;
}
.promo-banner p,
.promo-banner .meta-subtle { color: rgba(255,255,255,0.78); }
.search-shell,
.filter-shell { position: relative; }
.search-note { font-size: 14px; }
.search-panels { grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 16px; }
.search-panel-box {
  padding: 16px;
  border-radius: 20px;
  border: 1px solid var(--border-soft);
  background: rgba(255, 251, 241, 0.92);
}
.search-result-list { display: grid; gap: 14px; margin-top: 16px; }
.search-result { padding: 16px; }
.page-hero { padding: 68px 0 32px; }
.page-header { display: grid; gap: 12px; }
.page-hero-aside,
.panel-note { color: var(--fg-2); }
.detail-cover .book-cover { min-height: 460px; }
.detail-copy .meta-block,
.facts-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin: 20px 0; }
.meta-item,
.fact-panel {
  padding: 14px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: rgba(255, 248, 227, 0.64);
}
.meta-item strong,
.meta-item span,
.fact-panel strong,
.fact-panel span { display: block; }
.detail-sections,
.library-stack { gap: 18px; }
.detail-panel ul,
.side-panel ul,
.surface-card ul,
.history-card ul,
.library-card ul,
.filter-block ul { margin: 14px 0 0; padding-left: 18px; }
.faq-list details {
  border-top: 1px solid var(--border-soft);
  padding: 14px 0;
}
.faq-list summary { cursor: pointer; font-weight: 600; }
.side-panel h3 { margin: 18px 0 6px; }
.filter-shell { padding: 20px; }
.filter-head { justify-content: space-between; margin-bottom: 18px; }
.filter-block + .filter-block { margin-top: 20px; }
.filter-block h3 { font-size: 16px; margin-bottom: 10px; }
.filter-options { display: grid; gap: 8px; }
.chip-toggle { display: block; }
.chip-toggle input { position: absolute; opacity: 0; pointer-events: none; }
.chip-toggle span {
  display: inline-flex;
  width: 100%;
  justify-content: space-between;
  align-items: center;
  min-height: 42px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.74);
}
.chip-toggle input:checked + span {
  border-color: rgba(255,107,0,0.22);
  background: rgba(255,107,0,0.1);
  color: var(--accent);
}
.toolbar { margin-bottom: 18px; }
.toolbar-meta { flex-wrap: wrap; justify-content: space-between; }
.toolbar-search { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; gap: 12px; width: 100%; }
.catalog-results { min-height: 280px; }
.catalog-results.is-loading { opacity: 0.72; }
.skeleton-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.skeleton-card {
  min-height: 360px;
  border-radius: 24px;
  border: 1px solid var(--border);
  background: linear-gradient(90deg, rgba(255,255,255,0.92), rgba(247, 240, 222, 0.88), rgba(255,255,255,0.92));
  background-size: 220% 100%;
  animation: shimmer 1.4s linear infinite;
}
@keyframes shimmer { from { background-position: 200% 0; } to { background-position: -20% 0; } }
.filter-drawer-toggle,
.filter-drawer-close { display: none; }
.filter-drawer-open .filters { transform: translateX(0); }
.filter-drawer-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(21, 17, 38, 0.44);
  z-index: 45;
}
.drawer-open .filter-drawer-backdrop { display: block; }
.empty-state { display: grid; gap: 8px; }
.newsletter-panel { background: linear-gradient(145deg, rgba(255,255,255,0.92), rgba(255, 239, 196, 0.6)); }
.newsletter-grid { grid-template-columns: 1.1fr 0.9fr; align-items: end; }
.form-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-top: 18px; }
.form-grid .search-input,
.form-grid .select { background: #fffdfa; }
.footer {
  border-top: 1px solid var(--border);
  padding: 52px 0 36px;
  background: linear-gradient(180deg, rgba(255,255,255,0.72), rgba(255, 248, 227, 0.82));
}
.footer-grid h4 { margin: 0 0 12px; }
.footer-grid p,
.footer-grid a { color: var(--fg-2); }
.footer-note {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border-soft);
  color: var(--muted);
  font-size: 14px;
}
.mobile-only { display: none; }
@media (max-width: 1180px) {
  .topbar-inner,
  .hero-grid,
  .page-hero-grid,
  .catalog-layout,
  .detail-grid,
  .library-grid,
  .footer-grid,
  .ranking-grid,
  .newsletter-grid { grid-template-columns: 1fr; }
  .hero-stage { min-height: 520px; }
  .category-grid,
  .cards-grid,
  .editorial-row,
  .stats-grid,
  .goal-grid,
  .collections-grid,
  .skeleton-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .topbar-actions { justify-content: flex-start; }
  .topbar-search { min-width: 0; }
  .detail-cover .book-cover { min-height: 380px; }
}
@media (max-width: 920px) {
  .container { padding-inline: var(--container-gutter-tablet); }
  section { padding: var(--section-y-tablet) 0; }
  .topbar-inner {
    grid-template-columns: auto auto;
    justify-content: space-between;
    min-height: 74px;
    padding-block: 10px;
  }
  .menu-toggle { display: inline-flex; }
  .topbar-actions { display: none; }
  .topbar-search { display: none; }
  .nav-links {
    position: fixed;
    inset: 74px 16px auto 16px;
    display: grid;
    gap: 6px;
    padding: 16px;
    border-radius: 22px;
    border: 1px solid var(--border);
    background: rgba(255, 252, 244, 0.98);
    box-shadow: var(--elev-raised);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity var(--motion-fast) var(--ease-standard), transform var(--motion-fast) var(--ease-standard), visibility var(--motion-fast) var(--ease-standard);
    z-index: 50;
  }
  .nav-links a { padding: 12px 14px; }
  .menu-open .nav-links { opacity: 1; visibility: visible; transform: translateY(0); }
  .hero-search-meta,
  .stats-grid,
  .category-grid,
  .cards-grid,
  .collections-grid,
  .editorial-row,
  .goal-grid,
  .search-panels,
  .form-grid,
  .detail-copy .meta-block,
  .facts-grid,
  .skeleton-grid { grid-template-columns: 1fr; }
  .hero-grid { gap: 28px; }
  .hero-stage { min-height: 540px; }
  .hero-card { width: 100%; }
  .card-carousel { grid-auto-columns: minmax(280px, 80vw); }
  .filter-drawer-toggle,
  .filter-drawer-close { display: inline-flex; }
  .catalog-layout { position: relative; }
  .filters {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: min(88vw, 380px);
    z-index: 60;
    padding: 16px;
    overflow: auto;
    transform: translateX(-104%);
    transition: transform var(--motion-base) var(--ease-standard);
  }
  .drawer-open .filters { transform: translateX(0); }
  .toolbar-search { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .container { padding-inline: var(--container-gutter-phone); }
  section,
  .page-hero,
  .hero { padding-block: var(--section-y-phone); }
  .hero h1,
  .page-hero h1,
  .detail-copy h1 { font-size: 36px; }
  .hero-search-row,
  .hero-book,
  .topbar-inner,
  .newsletter-grid,
  .toolbar,
  .toolbar-meta,
  .toolbar-actions,
  .section-head,
  .split-head,
  .promo-banner,
  .ranking-row,
  .hero-actions,
  .detail-actions,
  .library-actions { grid-template-columns: 1fr; display: grid; }
  .hero-stage { min-height: 500px; }
  .hero-stack { width: 220px; }
  .stack-book { width: 150px; height: 212px; font-size: 20px; }
  .stack-book.book-2 { left: 82px; }
  .stack-book.book-3 { left: 58px; top: 158px; }
  .hero-card { top: 126px; }
  .floating-panel { max-width: 100%; left: 0; right: 0; bottom: 0; }
  .btn,
  .search-input,
  .select { width: 100%; }
  .mobile-only { display: inline-flex; }
}

/* Section background refinement */
body {
  background:
    radial-gradient(circle at top right, rgba(255, 182, 77, 0.2), transparent 22%),
    radial-gradient(circle at top left, rgba(94, 200, 221, 0.12), transparent 28%),
    linear-gradient(180deg, #fff8df 0%, #fffdf8 52%, #fff9ef 100%);
}
section {
  position: relative;
  isolation: isolate;
}
section::before {
  content: "";
  position: absolute;
  inset: 12px 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--motion-base) var(--ease-standard);
}
.shell main > section > .container,
.shell main > .page-hero > .container {
  position: relative;
  z-index: 1;
}
.hero::before,
.page-hero::before,
.stats-band::before,
[data-od-id="categorias-destaque"]::before,
[data-od-id="lancamentos"]::before,
[data-od-id="ranking-home"]::before,
[data-od-id="recomendados"]::before,
[data-od-id="colecoes-home"]::before,
[data-od-id="curadoria-feature"]::before,
[data-od-id="institucional"]::before,
[data-od-id="interesses-home"]::before,
[data-od-id="newsletter"]::before,
[data-od-id="catalog-layout"]::before,
[data-od-id="catalog-hero"]::before {
  opacity: 1;
}
.hero::before {
  inset: 0 0 8px;
  background:
    radial-gradient(circle at 8% 18%, rgba(255, 107, 0, 0.12), transparent 26%),
    radial-gradient(circle at 86% 24%, rgba(94, 200, 221, 0.14), transparent 24%),
    linear-gradient(180deg, rgba(255, 250, 233, 0.94), rgba(255, 245, 220, 0.58));
}
.page-hero::before,
[data-od-id="catalog-layout"]::before {
  inset: 14px 18px;
  border-radius: 40px;
  background:
    radial-gradient(circle at top left, rgba(94, 200, 221, 0.12), transparent 24%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.82), rgba(246, 240, 255, 0.74) 42%, rgba(255, 245, 224, 0.72));
  border: 1px solid rgba(234, 223, 186, 0.55);
}
.stats-band::before {
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0), rgba(255, 250, 239, 0.88) 38%, rgba(255, 255, 255, 0));
}
[data-od-id="categorias-destaque"]::before,
[data-od-id="recomendados"]::before,
[data-od-id="interesses-home"]::before,
[data-od-id="institucional"]::before,
[data-od-id="newsletter"]::before {
  inset: 10px 18px;
  border-radius: 36px;
  background:
    radial-gradient(circle at top right, rgba(242, 182, 75, 0.16), transparent 22%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.62), rgba(255, 244, 220, 0.86) 55%, rgba(255, 252, 244, 0.76));
  border: 1px solid rgba(234, 223, 186, 0.46);
}
[data-od-id="lancamentos"]::before,
[data-od-id="colecoes-home"]::before,
[data-od-id="catalog-layout"]::before {
  background:
    radial-gradient(circle at 12% 12%, rgba(94, 200, 221, 0.12), transparent 24%),
    radial-gradient(circle at 90% 82%, rgba(255, 107, 0, 0.1), transparent 20%),
    linear-gradient(145deg, rgba(248, 247, 255, 0.9), rgba(255, 255, 255, 0.8) 42%, rgba(255, 249, 232, 0.78));
}
[data-od-id="ranking-home"]::before,
[data-od-id="curadoria-feature"]::before {
  inset: 10px 18px;
  border-radius: 40px;
  background:
    radial-gradient(circle at top right, rgba(255, 107, 0, 0.14), transparent 18%),
    radial-gradient(circle at 12% 82%, rgba(94, 200, 221, 0.1), transparent 24%),
    linear-gradient(135deg, rgba(32, 24, 59, 0.04), rgba(255, 255, 255, 0.82) 28%, rgba(248, 242, 255, 0.86) 100%);
  border: 1px solid rgba(124, 109, 170, 0.12);
}
.topbar {
  background: linear-gradient(180deg, rgba(255, 249, 228, 0.92), rgba(255, 251, 240, 0.82));
}
.surface-card,
.stat-panel,
.category-card,
.card,
.collection-card,
.empty-state,
.detail-panel,
.side-panel,
.history-card,
.library-card,
.goal-panel,
.search-result,
.filter-shell,
.newsletter-panel,
.ranking-panel,
.fact-panel,
.promo-banner {
  background: rgba(255,255,255,0.84);
  backdrop-filter: blur(16px);
}
.card-cover-wrap {
  background:
    radial-gradient(circle at top right, rgba(255, 107, 0, 0.12), transparent 24%),
    linear-gradient(180deg, rgba(255,255,255,0.86), rgba(255, 239, 196, 0.34));
}
.collection-card {
  background:
    radial-gradient(circle at top right, rgba(94, 200, 221, 0.12), transparent 24%),
    linear-gradient(145deg, rgba(255, 239, 196, 0.58), rgba(255,255,255,0.9));
}
.search-panel-box {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.92), rgba(255, 246, 228, 0.92));
}
.footer {
  background:
    radial-gradient(circle at top left, rgba(94, 200, 221, 0.08), transparent 18%),
    linear-gradient(180deg, rgba(255,255,255,0.72), rgba(255, 248, 227, 0.88));
}
@media (max-width: 920px) {
  section::before { inset-inline: 10px; }
}
@media (max-width: 640px) {
  section::before { inset-inline: 0; border-radius: 28px; }
}