:root {
  --color-bg: #090d14;
  --color-bg-elevated: #111826;
  --color-bg-panel: #151f31;
  --color-text: #ece7dc;
  --color-text-muted: #b8b2a6;
  --color-line: #2b364d;
  --color-primary: #8f2333;
  --color-primary-hover: #a53245;
  --color-bronze: #9f8452;
  --color-bronze-soft: #c4a775;
  --color-success: #4f7d67;
  --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.45);
  --shadow-md: 0 16px 34px rgba(0, 0, 0, 0.3);
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --container-max: 1140px;
  --focus-ring: 0 0 0 3px rgba(196, 167, 117, 0.45);
  --transition-fast: 160ms ease;
  --transition-base: 280ms ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Source Sans 3", "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--color-text);
  background:
    radial-gradient(circle at 16% -10%, rgba(143, 35, 51, 0.22), transparent 38%),
    radial-gradient(circle at 88% 0%, rgba(159, 132, 82, 0.2), transparent 30%),
    linear-gradient(180deg, #05080e 0%, #090d14 48%, #080b12 100%);
  line-height: 1.6;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-sm);
}

.container {
  width: min(var(--container-max), calc(100% - 2rem));
  margin: 0 auto;
}

.section {
  padding: var(--space-6) 0;
}

.section-accent {
  background: linear-gradient(160deg, rgba(143, 35, 51, 0.14), rgba(159, 132, 82, 0.06));
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}

.narrow {
  width: min(760px, 100%);
}

h1,
h2,
h3,
h4 {
  margin: 0 0 var(--space-3);
  font-family: "Cormorant Garamond", "Times New Roman", serif;
  line-height: 1.15;
  letter-spacing: 0.02em;
}

h1 {
  font-size: clamp(2.1rem, 5.6vw, 4rem);
}

h2 {
  font-size: clamp(1.7rem, 4.2vw, 2.7rem);
}

h3 {
  font-size: clamp(1.35rem, 2.6vw, 2rem);
}

p {
  margin: 0 0 var(--space-3);
}

.subtitle {
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  backdrop-filter: blur(12px);
  background: rgba(8, 12, 19, 0.84);
  border-bottom: 1px solid rgba(159, 132, 82, 0.2);
}

.site-header-inner {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.brand-block {
  display: flex;
  flex-direction: column;
  text-decoration: none;
}

.brand-name {
  font-family: "Cormorant Garamond", serif;
  font-size: 1.6rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand-subtitle {
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
  text-transform: uppercase;
}

.nav-toggle {
  display: none;
  border: 1px solid var(--color-line);
  background: var(--color-bg-panel);
  color: var(--color-text);
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-list a {
  text-decoration: none;
  color: var(--color-text-muted);
  padding: 0.5rem 0.7rem;
  border-radius: 999px;
  font-size: 0.95rem;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.nav-list a:hover,
.nav-list a.active {
  color: var(--color-text);
  background: rgba(196, 167, 117, 0.14);
}

.hero {
  padding: 6rem 0 5.2rem;
}

.hero-grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1.05fr 0.95fr;
  align-items: stretch;
}

.hero-sales-copy {
  max-width: 640px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  border: 1px solid rgba(196, 167, 117, 0.34);
  border-radius: 999px;
  padding: 0.35rem 0.7rem;
  margin-bottom: var(--space-3);
  color: var(--color-bronze-soft);
  font-size: 0.77rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.positioning-line {
  font-size: clamp(1.15rem, 2.2vw, 1.5rem);
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.hero-panel {
  background: linear-gradient(130deg, rgba(17, 24, 38, 0.95), rgba(17, 24, 38, 0.7));
  border: 1px solid rgba(159, 132, 82, 0.23);
  border-radius: var(--radius-lg);
  padding: clamp(1.2rem, 3.2vw, 2rem);
  box-shadow: var(--shadow-md);
  display: grid;
  align-content: start;
}

.start-here-card {
  display: grid;
  gap: 0.9rem;
}

.start-here-label {
  margin: 0;
  color: var(--color-bronze-soft);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.start-here-cover {
  text-decoration: none;
}

.start-here-copy h2 {
  margin-bottom: 0.4rem;
}

.hero-panel h2 {
  margin-bottom: var(--space-2);
}

.hero-panel p {
  color: var(--color-text-muted);
}

.book-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 2vw, 1.4rem);
}

.book-card {
  background: linear-gradient(145deg, rgba(21, 31, 49, 0.95), rgba(14, 21, 33, 0.94));
  border: 1px solid rgba(159, 132, 82, 0.2);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 100%;
  position: relative;
  transition: transform var(--transition-base), border-color var(--transition-fast), box-shadow var(--transition-base);
}

.book-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, rgba(143, 35, 51, 0), rgba(196, 167, 117, 0.75), rgba(143, 35, 51, 0));
  opacity: 0.45;
}

.book-card:hover {
  transform: translateY(-5px);
  border-color: rgba(196, 167, 117, 0.48);
  box-shadow: var(--shadow-md);
}

.cover-link,
.mini-cover {
  text-decoration: none;
}

.cover-shell {
  position: relative;
  background: rgba(8, 13, 24, 0.7);
  aspect-ratio: 2 / 3;
  overflow: hidden;
}

.cover-shell img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cover-fallback {
  display: none;
  width: 100%;
  height: 100%;
  padding: var(--space-4);
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(150deg, #1a2537, #101726 70%);
  color: var(--color-text);
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(1.2rem, 3vw, 1.5rem);
  letter-spacing: 0.03em;
}

.cover-shell.is-fallback .cover-fallback {
  display: flex;
}

.cover-shell.is-fallback img {
  display: none;
}

.book-card-body {
  padding: 0.95rem 1rem 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  flex: 1;
}

.book-card-body h3 {
  margin-bottom: 0.15rem;
}

.book-summary {
  color: var(--color-text-muted);
  margin: 0;
}

.book-tagline {
  font-style: italic;
  color: var(--color-bronze-soft);
}

.book-card-actions {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.book-card-actions .btn {
  min-height: 42px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.62rem 1rem;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform var(--transition-fast), background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(160deg, var(--color-primary), #6d1c29);
  color: #f7f1e8;
  border-color: rgba(255, 255, 255, 0.1);
}

.btn-primary:hover {
  background: linear-gradient(160deg, var(--color-primary-hover), #7a2231);
}

.btn-secondary {
  background: rgba(16, 24, 38, 0.72);
  color: var(--color-text);
  border-color: rgba(159, 132, 82, 0.35);
}

.btn-secondary:hover {
  border-color: rgba(196, 167, 117, 0.8);
}

.btn.is-disabled {
  pointer-events: none;
  opacity: 0.6;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0.3rem 0.63rem;
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid transparent;
  width: fit-content;
}

.book-card-status-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.early-reader-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0.3rem 0.65rem;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid transparent;
  white-space: nowrap;
}

.early-reader-badge-arc {
  background: rgba(70, 108, 150, 0.18);
  color: #abbde0;
  border-color: rgba(120, 154, 198, 0.35);
}

.early-reader-badge-beta {
  background: rgba(170, 112, 46, 0.18);
  color: #e5c38f;
  border-color: rgba(196, 167, 117, 0.35);
}

.status-purchase {
  background: rgba(79, 125, 103, 0.18);
  color: #98ceb4;
  border-color: rgba(98, 162, 130, 0.45);
}

.status-preorder {
  background: rgba(196, 167, 117, 0.15);
  color: #e0c68d;
  border-color: rgba(196, 167, 117, 0.44);
}

.status-comingSoon {
  background: rgba(143, 35, 51, 0.18);
  color: #df8d99;
  border-color: rgba(165, 62, 80, 0.4);
}

.tag-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.tag-list li {
  border: 1px solid rgba(184, 178, 166, 0.22);
  border-radius: 999px;
  padding: 0.26rem 0.65rem;
  font-size: 0.76rem;
  color: var(--color-text-muted);
}

.quote-grid {
  display: grid;
  gap: 0.85rem;
}

.quote-card {
  border: 1px solid rgba(159, 132, 82, 0.2);
  background: rgba(17, 24, 38, 0.8);
  border-radius: var(--radius-md);
  padding: 1rem;
}

.quote-card p {
  margin: 0;
}

.warning-box {
  border-left: 4px solid var(--color-primary);
  background: rgba(143, 35, 51, 0.12);
  border-radius: var(--radius-sm);
  padding: var(--space-3);
}

.warning-box ul {
  margin: 0;
  padding-left: 1.1rem;
}

.warning-box li {
  margin-bottom: 0.45rem;
}

.warning-box li:last-child {
  margin-bottom: 0;
}

.featured-book-layout {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: minmax(220px, 320px) minmax(0, 1fr);
  align-items: start;
}

.featured-cover {
  max-width: 320px;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.2rem;
}

.filter-btn {
  border: 1px solid rgba(159, 132, 82, 0.35);
  background: rgba(17, 24, 38, 0.7);
  color: var(--color-text-muted);
  border-radius: 999px;
  padding: 0.45rem 0.75rem;
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.is-active {
  background: rgba(143, 35, 51, 0.35);
  color: var(--color-text);
  border-color: rgba(196, 167, 117, 0.7);
}

.empty-state {
  border: 1px dashed rgba(159, 132, 82, 0.4);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  color: var(--color-text-muted);
}

.book-hero {
  padding-top: 4.7rem;
}

.book-hero-layout {
  display: grid;
  grid-template-columns: minmax(260px, 380px) minmax(0, 1fr);
  gap: var(--space-5);
  align-items: start;
}

.book-hero-cover {
  position: sticky;
  top: 98px;
}

.ku-note {
  color: var(--color-bronze-soft);
  margin: 0;
}

.format-line {
  color: var(--color-text-muted);
  margin: 0;
}

.inline-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: block;
}

.inline-links li {
  margin-bottom: 0.75rem;
}

.inline-links a {
  text-decoration: none;
  border-bottom: 1px solid rgba(196, 167, 117, 0.5);
  color: var(--color-bronze-soft);
}

.conversion-cta-block {
  margin-top: 1.2rem;
}

.mobile-sticky-cta {
  display: none;
}

.grid-2 {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.newsletter-placeholder,
.contact-card,
.policy-card {
  border: 1px solid rgba(159, 132, 82, 0.22);
  border-radius: var(--radius-md);
  background: rgba(17, 24, 38, 0.78);
  padding: 1rem;
}

.contact-form {
  display: grid;
  gap: 0.8rem;
}

.contact-form label {
  display: grid;
  gap: 0.4rem;
  color: var(--color-text-muted);
}

.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  background: rgba(9, 13, 20, 0.95);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font: inherit;
  padding: 0.65rem 0.75rem;
}

.contact-form textarea {
  min-height: 160px;
  resize: vertical;
}

.form-note {
  color: var(--color-text-muted);
  font-size: 0.92rem;
}

.mini-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
}

.mini-cover .cover-shell {
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.mini-title {
  display: block;
  margin-top: 0.4rem;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.author-photo-placeholder {
  border: 1px solid rgba(159, 132, 82, 0.3);
  background: linear-gradient(155deg, #192437, #111a29);
  border-radius: var(--radius-lg);
  min-height: 340px;
  display: grid;
  place-items: center;
  color: var(--color-text-muted);
  font-family: "Cormorant Garamond", serif;
  font-size: 1.3rem;
  text-align: center;
  padding: 1rem;
}

.site-footer {
  border-top: 1px solid rgba(159, 132, 82, 0.25);
  background: rgba(6, 9, 15, 0.8);
  padding: 2.2rem 0 2rem;
}

.footer-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1.2fr 1fr 1fr;
}

.footer-list,
.social-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.35rem;
}

.footer-list a,
.social-list a {
  text-decoration: none;
  color: var(--color-text-muted);
}

.footer-list a:hover,
.social-list a:hover {
  color: var(--color-text);
}

.footer-meta {
  margin-top: 1rem;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 10px;
  background: var(--color-bronze);
  color: #111;
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  text-decoration: none;
}

.skip-link:focus {
  top: 10px;
}

@media (max-width: 1024px) {
  .book-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-grid,
  .featured-book-layout,
  .grid-2,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .book-hero-layout {
    grid-template-columns: 1fr;
  }

  .book-hero-cover {
    position: static;
    max-width: 380px;
  }

  .featured-cover {
    max-width: 320px;
  }

  .mobile-sticky-cta {
    display: block;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 90;
    padding: 0.7rem 0.9rem calc(0.7rem + env(safe-area-inset-bottom));
    background: rgba(5, 9, 14, 0.94);
    border-top: 1px solid rgba(159, 132, 82, 0.35);
    box-shadow: 0 -10px 24px rgba(0, 0, 0, 0.35);
  }

  .mobile-sticky-cta .btn {
    width: 100%;
    min-height: 48px;
  }

  body[data-book-slug] #book-page-content {
    padding-bottom: 5.5rem;
  }
}

@media (max-width: 760px) {
  .site-header-inner {
    min-height: 70px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-list {
    position: absolute;
    left: 0;
    right: 0;
    top: 70px;
    flex-direction: column;
    align-items: stretch;
    padding: 0.6rem 1rem 1rem;
    background: rgba(7, 10, 17, 0.96);
    border-bottom: 1px solid rgba(159, 132, 82, 0.3);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-base), opacity var(--transition-base);
  }

  .nav-list.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-list a {
    padding: 0.68rem 0.7rem;
  }

  .hero {
    padding-top: 4.8rem;
  }

  .hero-panel {
    padding: 1rem;
  }

  .book-grid,
  .mini-grid {
    grid-template-columns: 1fr;
  }

  .book-card-actions .btn {
    flex: 1 1 100%;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(var(--container-max), calc(100% - 1.2rem));
  }

  .section {
    padding: 2.2rem 0;
  }

  .book-card-body {
    padding: 0.9rem;
  }

  .book-summary {
    font-size: 0.96rem;
  }
}