/* ================================
   CABIN FLUX — Catalog 2026
   Sketch v3 — premium aesthetic
   ================================ */

:root {
  --ink: #0a0a0a;
  --ink-soft: #1a1a1a;
  --ink-2: #14181c;
  --paper: #f7f4ed;
  --paper-warm: #efeae0;
  --paper-soft: #f0ece2;
  --gold: #c8a96a;
  --gold-bright: #d6b676;
  --gold-warm: #b8965a;
  --orange: #d97a3f;
  --muted: #6b6b6b;
  --muted-2: #8a8a8a;
  --rule: #2a2a2a;

  --serif: 'Cormorant Garamond', 'Times New Roman', serif;
  --sans: 'Inter', system-ui, sans-serif;
  --display: 'Space Grotesk', 'Inter', sans-serif;

  --pad-y: 44px;
  --pad-x: 38px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  background: #0f1216;
  font-family: var(--sans);
  color: var(--ink);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  height: 100%;
  overflow: hidden;
}

button { font-family: inherit; cursor: pointer; }
em { font-style: italic; }

/* ============ VIEWER SHELL ============ */
.viewer-shell {
  display: flex;
  flex-direction: column;
  height: 100vh;
  background: radial-gradient(ellipse at center, #1a1d22 0%, #0a0c10 100%);
}

.viewer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 24px;
  border-bottom: 1px solid rgba(200,169,106,0.12);
  background: rgba(8,10,14,0.7);
  backdrop-filter: blur(10px);
  flex-shrink: 0;
}
.viewer-header .brand-mark {
  font-family: var(--display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #f0eee9;
}
.viewer-header .brand-mark .x { color: var(--gold); }
.viewer-title {
  font-family: var(--display);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #888b90;
  flex: 1;
  text-align: center;
}
.viewer-tools {
  display: flex;
  align-items: center;
  gap: 14px;
}
#pg-indicator {
  font-family: var(--display);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--gold);
  background: rgba(200,169,106,0.06);
  padding: 6px 12px;
  border-radius: 2px;
  border: 1px solid rgba(200,169,106,0.18);
}
#full-btn {
  background: transparent;
  border: 1px solid rgba(200,169,106,0.2);
  color: #c0c2c6;
  width: 32px;
  height: 32px;
  border-radius: 2px;
  font-size: 14px;
  transition: all 0.2s;
}
#full-btn:hover { border-color: var(--gold); color: var(--gold); }

/* ============ BOOK STAGE ============ */
.book-stage {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 24px 80px;
  min-height: 0;
}
#book { margin: 0 auto; }

.nav-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(200,169,106,0.3);
  color: var(--gold);
  font-size: 28px;
  font-family: var(--serif);
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: all 0.2s;
  backdrop-filter: blur(10px);
}
.nav-arrow:hover {
  background: var(--gold);
  color: var(--ink);
  transform: translateY(-50%) scale(1.06);
}
.nav-arrow--prev { left: 20px; }
.nav-arrow--next { right: 20px; }

/* ============ VIEWER FOOTER ============ */
.viewer-footer {
  padding: 11px 24px;
  text-align: center;
  border-top: 1px solid rgba(200,169,106,0.12);
  background: rgba(8,10,14,0.7);
  font-family: var(--display);
  font-size: 9.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #6c6f74;
  flex-shrink: 0;
}

/* ============ PAGE BASE ============ */
.page {
  background: var(--paper);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  position: relative;
}
.page--light { background: var(--paper); color: var(--ink); }
.page--dark  { background: var(--ink);   color: var(--paper); }

/* Paper texture for light pages */
.page--light::before, .page--toc::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 30% 20%, rgba(184,150,90,0.025) 0%, transparent 50%),
    radial-gradient(circle at 70% 80%, rgba(184,150,90,0.018) 0%, transparent 45%);
  pointer-events: none;
}
/* Dust texture for dark pages */
.page--dark::before, .page--cover::before, .page--back::before, .page--image::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 30% 30%, rgba(200,169,106,0.04) 0%, transparent 60%),
    radial-gradient(circle at 70% 70%, rgba(200,169,106,0.03) 0%, transparent 55%);
  pointer-events: none;
  z-index: 0;
}

.page-inner {
  padding: var(--pad-y) var(--pad-x);
  display: flex;
  flex-direction: column;
  height: 100%;
  position: relative;
  z-index: 1;
}

/* ============ TYPOGRAPHY ============ */
.kicker {
  font-family: var(--display);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink);
  padding-bottom: 7px;
  border-bottom: 1px solid var(--gold);
  display: inline-block;
  margin-bottom: 18px;
  align-self: flex-start;
}
.kicker--gold { color: var(--gold); border-color: var(--gold); }

.display {
  font-family: var(--serif);
  font-size: 32px;
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin-bottom: 14px;
}
.display em { font-style: italic; color: var(--gold); font-weight: 500; }
.display--dark { color: var(--ink); }
.display--dark em { color: var(--gold-warm); }

.quote {
  font-family: var(--serif);
  font-size: 26px;
  font-style: italic;
  font-weight: 500;
  line-height: 1.2;
  color: var(--ink);
  margin-bottom: 18px;
  letter-spacing: -0.01em;
}

.lead {
  font-size: 12px;
  line-height: 1.65;
  color: #d4d4d2;
  margin-bottom: 12px;
}
.lead em { color: var(--gold); font-style: italic; }
.lead--first { font-size: 14px; color: #e8e8e6; line-height: 1.6; }

.page p {
  font-size: 11px;
  line-height: 1.6;
  color: var(--ink-soft);
}
.page--dark p { color: #d0d0d0; }

.footer-bar {
  position: absolute;
  bottom: 16px;
  left: var(--pad-x);
  right: var(--pad-x);
  font-family: var(--display);
  font-size: 8.5px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 2;
}
.footer-bar--dark { color: #777; }
.page-no {
  font-family: var(--serif);
  font-size: 13px;
  font-weight: 500;
  color: var(--gold);
  letter-spacing: 0;
  text-transform: none;
}
.page-no--corner {
  position: absolute;
  bottom: 16px;
  right: var(--pad-x);
}

/* ============ ART STAGE (replaces placeholders) ============ */
.art-stage {
  background:
    radial-gradient(ellipse at 50% 40%, rgba(200,169,106,0.08) 0%, transparent 60%),
    linear-gradient(180deg, #18191c 0%, #0a0a0a 100%);
  position: relative;
  overflow: hidden;
}
.art-stage::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(0deg, rgba(255,255,255,0.015) 0 1px, transparent 1px 4px);
  pointer-events: none;
}

/* ============ 01 · COVER ============ */
.page--cover {
  background: var(--ink);
  flex-direction: row;
  padding: 0;
}
.cover-stripe {
  width: 56px;
  background: var(--gold);
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}
.cover-stripe-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-90deg);
  font-family: var(--display);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--ink);
  white-space: nowrap;
}
.cover-body {
  flex: 1;
  padding: 38px 32px 34px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  z-index: 1;
  min-width: 0;
}
.cover-top { color: var(--paper); }
.cover-brand {
  font-family: var(--serif);
  font-size: 48px;
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 0.95;
  color: var(--paper);
}
.cover-brand em {
  font-style: italic;
  font-weight: 400;
  color: var(--paper);
}
.cover-brand .x { color: var(--gold); font-weight: 600; font-style: normal; }
.cover-sub {
  font-family: var(--display);
  font-size: 8.5px;
  font-weight: 500;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--gold);
  margin-top: 10px;
}

.cover-hero {
  flex: 1;
  margin: 22px 0;
  position: relative;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-photo {
  position: relative;
  width: 100%;
  height: 100%;
  background: radial-gradient(ellipse at 50% 60%, rgba(200,169,106,0.18) 0%, transparent 55%);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.hero-photo img {
  max-width: 92%;
  max-height: 92%;
  object-fit: contain;
  filter: drop-shadow(0 12px 28px rgba(0,0,0,0.7));
  mix-blend-mode: normal;
}

.best-seller {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 70px;
  height: 70px;
  color: var(--paper);
  z-index: 3;
}
.best-seller svg { width: 100%; height: 100%; }

.cover-bottom {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  color: var(--paper);
}
.cover-year {
  font-family: var(--serif);
  font-size: 92px;
  font-weight: 400;
  line-height: 0.85;
  color: var(--gold);
  letter-spacing: -0.05em;
}
.cover-year span { color: rgba(200,169,106,0.4); }
.cover-title { text-align: right; }
.ct-eye {
  display: inline-block;
  background: var(--paper);
  color: var(--ink);
  padding: 4px 11px;
  font-family: var(--display);
  font-size: 8.5px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.ct-eye::before {
  content: '';
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  border: 1.5px solid var(--gold);
  margin-right: 7px;
  vertical-align: -1px;
}
.ct-name {
  font-family: var(--serif);
  font-size: 56px;
  font-weight: 500;
  font-style: italic;
  color: var(--gold);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-top: 4px;
}

/* ============ 02 · TOC ============ */
.page--toc .toc-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}
.ornament {
  font-family: var(--serif);
  font-size: 14px;
  color: var(--gold);
  letter-spacing: 0.5em;
}
.page--toc .toc { list-style: none; margin-top: 8px; flex: 1; }
.page--toc .toc li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 13px 0;
  border-bottom: 1px solid rgba(180,150,90,0.18);
}
.toc-num {
  font-family: var(--display);
  font-size: 11px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.05em;
  width: 22px;
  flex-shrink: 0;
}
.toc-title {
  flex: 1;
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.005em;
}
.toc-page {
  font-family: var(--serif);
  font-size: 14px;
  font-style: italic;
  color: var(--muted);
}
.toc-foot {
  margin-top: 18px;
  font-family: var(--serif);
  font-style: italic;
  font-size: 13px;
  color: var(--muted);
  text-align: center;
}

/* ============ 03 · WELCOME ============ */
.welcome-mark {
  margin-top: auto;
  font-family: var(--serif);
  font-size: 80px;
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 0.85;
  align-self: flex-end;
  text-align: right;
  color: rgba(200,169,106,0.18);
}
.wm-line--gold { color: rgba(200,169,106,0.35); font-style: italic; }

/* ============ 04 · ABOUT HERO BLEED ============ */
.page--image {
  position: relative;
  padding: 0;
  background: var(--ink);
  overflow: hidden;
}
.hero-bleed {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(ellipse at 60% 35%, rgba(200,169,106,0.18) 0%, transparent 60%),
    linear-gradient(135deg, #1a1d22 0%, #0a0c10 70%);
  overflow: hidden;
}
.hero-bleed-img {
  width: 90%;
  max-height: 90%;
  object-fit: contain;
  filter: drop-shadow(0 14px 32px rgba(0,0,0,0.7));
}
.hero-bleed-grain {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(0deg, rgba(255,255,255,0.012) 0 1px, transparent 1px 3px);
  pointer-events: none;
}
.overlay-card {
  position: absolute;
  bottom: 32px;
  left: 28px;
  right: 60px;
  background: rgba(10,10,10,0.92);
  padding: 20px 22px;
  border-left: 3px solid var(--gold);
  z-index: 2;
}
.overlay-card .kicker { color: var(--gold); border-color: var(--gold); margin-bottom: 10px; padding-bottom: 5px; }
.overlay-card .display { font-size: 24px; color: var(--paper); margin-bottom: 8px; }
.overlay-card p { color: #c8c8c8; font-size: 10.5px; }

/* ============ 05 · CEO MESSAGE ============ */
.signature { margin-top: 22px; }
.sig-name {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 500;
  color: var(--gold-warm);
}
.sig-name em { font-style: italic; }
.sig-line {
  margin-top: 8px;
  width: 50%;
  height: 1px;
  background: linear-gradient(90deg, var(--gold) 0%, transparent 100%);
}

/* ============ 06, 10 · SERIES INTRO ============ */
.page--series {
  padding: var(--pad-y) var(--pad-x);
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.page--series-alt { background: var(--ink-2); }
.series-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
}
.series-meta { flex: 1; max-width: 65%; }
.series-title {
  font-family: var(--serif);
  font-size: 58px;
  font-weight: 400;
  line-height: 0.92;
  color: var(--paper);
  letter-spacing: -0.025em;
  margin: 8px 0 10px;
}
.series-title em { font-style: italic; color: var(--gold); font-weight: 500; }
.series-title--sm { font-size: 38px; }
.series-sub {
  font-family: var(--serif);
  font-style: italic;
  font-size: 13px;
  color: #c0c0c0;
  max-width: 32ch;
  line-height: 1.45;
}
.series-stats {
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-align: right;
  border-left: 1px solid rgba(200,169,106,0.2);
  padding-left: 18px;
}
.stat { display: flex; flex-direction: column; align-items: flex-end; }
.stat-num {
  font-family: var(--display);
  font-size: 20px;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
  letter-spacing: -0.01em;
}
.stat-lbl {
  font-family: var(--display);
  font-size: 7.5px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #a0a0a0;
  margin-top: 4px;
}
.series-art {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at center, rgba(200,169,106,0.12) 0%, transparent 60%);
  min-height: 0;
  overflow: hidden;
}
.series-art img {
  max-width: 88%;
  max-height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 12px 28px rgba(0,0,0,0.6));
}

/* ============ 07, 08, 15 · PRODUCT PAGES ============ */
.page--product {
  flex-direction: row;
  padding: 0;
}
.page--product-rev { flex-direction: row-reverse; }
.prod-image {
  flex: 1.1;
  position: relative;
  background:
    radial-gradient(ellipse at 50% 40%, rgba(200,169,106,0.12) 0%, transparent 60%),
    linear-gradient(180deg, #18191c 0%, #0a0a0a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  min-width: 0;
}
.prod-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(0deg, rgba(255,255,255,0.012) 0 1px, transparent 1px 3px);
  pointer-events: none;
}
.prod-photo {
  width: 90%;
  height: 88%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
}
.prod-photo img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 14px 30px rgba(0,0,0,0.65));
}
.prod-foot { margin-top: auto; }
.prod-info {
  flex: 1;
  padding: var(--pad-y) var(--pad-x);
  display: flex;
  flex-direction: column;
  position: relative;
  min-width: 0;
}
.prod-name {
  font-family: var(--serif);
  font-size: 34px;
  font-weight: 500;
  line-height: 1;
  color: var(--ink);
  margin: 4px 0 10px;
  letter-spacing: -0.01em;
}
.prod-name em { font-style: italic; color: var(--gold-warm); font-weight: 500; }
.prod-sizes {
  font-family: var(--display);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold-warm);
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(180,150,90,0.25);
  margin-bottom: 14px;
}
.prod-desc {
  font-size: 11.5px;
  line-height: 1.65;
  color: #2a2a2a;
  margin-bottom: 18px;
}

.spec-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 18px;
  padding: 14px 0;
  border-top: 1px solid rgba(180,150,90,0.25);
  border-bottom: 1px solid rgba(180,150,90,0.25);
  margin-bottom: 18px;
}
.spec-grid > div { display: flex; flex-direction: column; gap: 3px; }
.sl {
  font-family: var(--display);
  font-size: 7.5px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}
.sv {
  font-family: var(--serif);
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.2;
}

.prod-price { margin-top: auto; }
.pr-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 14px;
  margin-bottom: 14px;
}
.price-label {
  font-family: var(--display);
  font-size: 8.5px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold-warm);
  margin-bottom: 2px;
}
.price-now {
  font-family: var(--display);
  font-size: 32px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.02em;
  line-height: 1;
}
.price-was-block { text-align: right; }
.pl-small {
  font-family: var(--display);
  font-size: 8px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted-2);
  margin-bottom: 2px;
}
.price-was {
  font-family: var(--serif);
  font-size: 14px;
  font-style: italic;
  color: var(--muted);
  text-decoration: line-through;
  text-decoration-color: var(--orange);
  text-decoration-thickness: 1.5px;
}

.shop-btn {
  width: 100%;
  background: var(--orange);
  color: var(--paper);
  border: none;
  padding: 12px 16px;
  font-family: var(--display);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.2s;
}
.shop-btn:hover { background: #c46a32; transform: translateY(-1px); }

.bs-badge {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 76px;
  height: 76px;
  color: var(--gold);
  z-index: 3;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.5));
}
.bs-badge--alt { color: var(--paper); }
.bs-badge svg { width: 100%; height: 100%; }

/* ============ 09, 11, 13, 14 · DUO PAGES ============ */
.page--duo .duo-header { margin-bottom: 14px; }
.page--duo .duo-header p {
  font-family: var(--serif);
  font-style: italic;
  font-size: 12.5px;
  color: var(--muted);
  margin-top: 4px;
}
.duo-grid {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  min-height: 0;
}
.duo-card {
  display: flex;
  flex-direction: column;
  background: var(--paper-warm);
  overflow: hidden;
  min-height: 0;
}
.duo-card--feat {
  background: var(--ink);
  color: var(--paper);
}
.duo-art {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(ellipse at center, rgba(200,169,106,0.08) 0%, transparent 60%),
    linear-gradient(180deg, rgba(0,0,0,0.04) 0%, transparent 100%);
  padding: 14px;
  min-height: 140px;
  color: var(--ink);
}
.duo-card--feat .duo-art {
  background:
    radial-gradient(ellipse at center, rgba(200,169,106,0.15) 0%, transparent 55%),
    linear-gradient(180deg, #18191c 0%, #0a0a0a 100%);
  color: var(--gold-bright);
}
.duo-art svg, .duo-art img {
  max-width: 92%;
  max-height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 6px 14px rgba(0,0,0,0.35));
}
.duo-body {
  padding: 12px 14px 14px;
  display: flex;
  flex-direction: column;
  position: relative;
}
.duo-flag {
  position: absolute;
  top: -10px;
  left: 14px;
  background: var(--orange);
  color: var(--paper);
  padding: 3px 8px;
  font-family: var(--display);
  font-size: 8.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.duo-name {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.05;
  margin-bottom: 6px;
  color: var(--ink);
}
.duo-card--feat .duo-name { color: var(--paper); }
.duo-desc {
  font-size: 10.5px;
  line-height: 1.55;
  color: var(--ink-soft);
  margin-bottom: 10px;
}
.duo-card--feat .duo-desc { color: #c8c8c8; }
.duo-price {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-top: 10px;
  border-top: 1px solid rgba(180,150,90,0.25);
  margin-top: auto;
}
.duo-card--feat .duo-price { border-top-color: rgba(200,169,106,0.2); }
.price-now-sm {
  font-family: var(--display);
  font-size: 19px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.duo-card--feat .price-now-sm { color: var(--gold); }
.price-was-sm {
  font-family: var(--serif);
  font-size: 11px;
  font-style: italic;
  color: var(--muted);
  text-decoration: line-through;
  text-decoration-color: var(--orange);
  text-decoration-thickness: 1px;
}

/* ============ 12 · SPLIT-PRODUCT PAGE ============ */
.page--split-product {
  flex-direction: row;
  padding: 0;
}
.sp-half {
  flex: 1;
  padding: var(--pad-y) 26px;
  display: flex;
  flex-direction: column;
  position: relative;
  min-width: 0;
}
.sp-half--prod { background: var(--paper-warm); }
.sp-half--series { background: var(--ink); color: var(--paper); }
.sp-half--series .kicker { color: var(--gold); border-color: var(--gold); }
.sp-half--series .series-title { color: var(--paper); margin-top: 6px; }
.sp-half--series .series-sub { color: #c0c0c0; }
.sp-art {
  height: 36%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  background: radial-gradient(ellipse at center, rgba(200,169,106,0.08) 0%, transparent 60%);
  color: var(--ink);
}
.sp-art svg, .sp-art img { max-width: 78%; max-height: 100%; object-fit: contain; filter: drop-shadow(0 6px 14px rgba(0,0,0,0.35)); }
.sp-name {
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 500;
  line-height: 1.05;
  color: var(--ink);
  margin: 4px 0 8px;
}
.sp-half p {
  font-size: 11.5px;
  line-height: 1.55;
  margin-bottom: 12px;
}
.sp-price {
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-top: 12px;
  border-top: 1px solid rgba(180,150,90,0.25);
}
.bullet-list { list-style: none; margin-top: 18px; }
.bullet-list li {
  position: relative;
  padding-left: 18px;
  font-size: 12px;
  line-height: 1.6;
  color: #d8d8d8;
  margin-bottom: 10px;
}
.bullet-list li::before {
  content: '';
  position: absolute;
  left: 2px;
  top: 8px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold);
}

/* ============ 16 · BACK COVER ============ */
.page--back {
  flex-direction: column;
  background: var(--ink);
  color: var(--paper);
  padding: 42px 32px;
  justify-content: space-between;
  position: relative;
  z-index: 1;
}
.back-top { text-align: center; position: relative; z-index: 1; }
.back-brand {
  font-family: var(--serif);
  font-size: 52px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--paper);
  line-height: 0.95;
}
.back-brand em { font-style: italic; font-weight: 400; }
.back-brand .x { color: var(--gold); font-style: normal; font-weight: 600; }
.back-tag {
  font-family: var(--display);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold);
  margin-top: 12px;
}
.back-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 18px;
  padding: 22px 0;
  border-top: 1px solid rgba(200,169,106,0.2);
  border-bottom: 1px solid rgba(200,169,106,0.2);
  position: relative;
  z-index: 1;
}
.back-cell .kicker { margin-bottom: 12px; padding-bottom: 4px; font-size: 8px; }
.back-line {
  font-family: var(--serif);
  font-size: 13px;
  font-weight: 500;
  color: #d8d8d8;
  margin-bottom: 5px;
  line-height: 1.35;
}
.back-bottom {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  position: relative;
  z-index: 1;
}
.back-year {
  font-family: var(--serif);
  font-size: 66px;
  font-weight: 400;
  color: rgba(200,169,106,0.22);
  letter-spacing: -0.04em;
  line-height: 0.85;
  font-style: italic;
}
.back-issue {
  font-family: var(--display);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
  .book-stage { padding: 16px 12px; }
  .nav-arrow { width: 40px; height: 40px; font-size: 22px; }
  .nav-arrow--prev { left: 6px; }
  .nav-arrow--next { right: 6px; }
  .viewer-title { display: none; }
}