:root {
  --color-paper: #fbf8f1;
  --color-paper-deep: #f0eadf;
  --color-panel: #fffdf8;
  --color-panel-soft: #f8f3ea;
  --color-sage: #8a9a84;
  --color-sage-soft: #dbe2d7;
  --color-charcoal: #252220;
  --color-muted: #655f58;
  --color-line: rgba(37, 34, 32, 0.16);
  --color-line-strong: rgba(37, 34, 32, 0.28);
  --shadow-soft: 0 18px 42px rgba(37, 34, 32, 0.08);
  --shadow-panel: 0 28px 70px rgba(37, 34, 32, 0.11);
  --font-heading: "Libre Baskerville", Georgia, "Times New Roman", serif;
  --font-body: Inter, "Helvetica Neue", Arial, sans-serif;
  --space-2xs: 0.375rem;
  --space-xs: 0.75rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 7rem;
  --radius: 1.25rem;
  --radius-lg: 1.75rem;
  --container: 74rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-charcoal);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.72), rgba(255, 255, 255, 0)) 0 0 / 100% 24rem no-repeat,
    var(--color-paper);
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
}

a:hover {
  color: var(--color-charcoal);
}

:focus-visible {
  outline: 3px solid var(--color-sage);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: var(--space-sm);
  top: -3rem;
  padding: 0.75rem 1rem;
  background: var(--color-charcoal);
  color: var(--color-paper);
  z-index: 20;
}

.skip-link:focus {
  top: var(--space-sm);
}

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

.narrow {
  max-width: 44rem;
}

.section {
  padding: clamp(5.5rem, 9vw, 8rem) 0;
}

.section-alt {
  background: rgba(255, 255, 255, 0.46);
  border-top: 1px solid rgba(37, 34, 32, 0.12);
  border-bottom: 1px solid rgba(37, 34, 32, 0.12);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(251, 248, 241, 0.9);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(37, 34, 32, 0.08);
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled {
  border-color: rgba(37, 34, 32, 0.14);
  box-shadow: 0 12px 34px rgba(37, 34, 32, 0.06);
}

.header-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-lg);
  min-height: 5.35rem;
}

.brand-lockup {
  display: grid;
  gap: 0.18rem;
  text-decoration: none;
}

.wordmark,
.footer-brand {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  letter-spacing: 0.01em;
  text-decoration: none;
}

.wordmark-tagline {
  color: var(--color-muted);
  font-size: 0.79rem;
  line-height: 1.35;
  max-width: 18rem;
}

.site-nav,
.footer-nav,
.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem 1.25rem;
}

.site-nav {
  justify-content: center;
  font-size: 0.95rem;
  color: var(--color-muted);
  gap: 1rem 1.55rem;
}

.site-nav a,
.footer-nav a,
.contact-links a {
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.74rem 1.2rem;
  border: 1px solid var(--color-charcoal);
  border-radius: 999px;
  background: var(--color-charcoal);
  color: var(--color-paper);
  font-weight: 600;
  text-decoration: none;
  transition: background 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.button:hover {
  background: #312d2a;
  color: var(--color-paper);
  transform: translateY(-1px);
}

.button-small {
  min-height: 2.5rem;
  padding-inline: 0.95rem;
  font-size: 0.92rem;
}

.hero {
  padding-top: clamp(4.5rem, 8vw, 7rem);
  padding-bottom: clamp(5.5rem, 8vw, 7rem);
}

.hero-grid {
  display: grid;
  gap: var(--space-xl);
}

.hero-grid {
  grid-template-columns: minmax(16rem, 0.85fr) minmax(0, 1.15fr);
  align-items: center;
  padding: clamp(1.5rem, 3.5vw, 3rem);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.82), rgba(248, 243, 234, 0.78)),
    var(--color-panel-soft);
  box-shadow: var(--shadow-panel);
}

.hero-release h1,
h2,
h3 {
  font-family: var(--font-heading);
  line-height: 1.18;
}

.hero-release h1 {
  margin: 0 0 var(--space-sm);
  font-size: clamp(2.25rem, 3.4vw, 3.9rem);
  max-width: 12ch;
}

.hero-release {
  max-width: 44rem;
}

.hero-cover.image-frame {
  aspect-ratio: 1 / 1;
  min-height: 0;
  border-color: var(--color-line-strong);
  background: var(--color-panel);
  box-shadow: 0 18px 48px rgba(37, 34, 32, 0.1);
}

.hero-cover img {
  object-fit: contain;
}

.section-intro p,
.section-body p,
.section-heading p,
.footer-meta p,
.site-footer p {
  color: var(--color-muted);
}

.eyebrow,
.image-fallback-label,
.series-card p {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
}

.eyebrow {
  margin: 0 0 var(--space-sm);
  color: var(--color-sage);
  font-weight: 600;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.25rem;
  align-items: center;
  margin-top: var(--space-md);
}

.preview-card,
.series-card,
.launch-panel {
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-panel);
  box-shadow: var(--shadow-soft);
}

.image-frame {
  position: relative;
  overflow: hidden;
  border-radius: calc(var(--radius) - 0.18rem);
  border: 1px solid rgba(37, 34, 32, 0.18);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.28), rgba(255, 255, 255, 0)),
    linear-gradient(135deg, var(--color-paper-deep), var(--color-sage-soft));
  aspect-ratio: 4 / 5;
}

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

.image-fallback::before {
  content: attr(data-fallback);
  position: absolute;
  inset: auto 1rem 1rem 1rem;
  color: var(--color-muted);
  font-size: 0.95rem;
}

.image-fallback-label {
  position: absolute;
  top: 1rem;
  left: 1rem;
  padding: 0.35rem 0.5rem;
  border-radius: 999px;
  background: rgba(251, 248, 241, 0.94);
  color: var(--color-charcoal);
}

.image-frame.has-image::before,
.image-frame.has-image .image-fallback-label {
  display: none;
}

.section-heading h2,
.section-intro h2,
#about h2 {
  margin: 0 0 var(--space-md);
  font-size: clamp(1.8rem, 2.5vw, 3rem);
}

.book-subtitle {
  margin: 0 0 0.4rem;
  font-family: var(--font-heading);
  font-size: clamp(1.08rem, 1.4vw, 1.28rem);
  color: var(--color-charcoal);
}

.author-line {
  margin: 0;
}

.value-points {
  display: grid;
  gap: 0.95rem;
  padding: 0;
  margin: var(--space-lg) 0 var(--space-md);
  list-style: none;
}

.value-points li {
  padding: 1rem 1.1rem;
  border-left: 3px solid var(--color-sage);
  border-radius: 0 0.75rem 0.75rem 0;
  background: rgba(255, 255, 255, 0.72);
}

.section-intro {
  max-width: 38rem;
  margin-bottom: clamp(2.5rem, 5vw, 4.25rem);
}

.preview-grid,
.series-grid {
  display: grid;
  gap: clamp(1.25rem, 2vw, 1.75rem);
}

.preview-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.preview-card {
  padding: 1.05rem;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.preview-card:hover {
  border-color: var(--color-line-strong);
  box-shadow: var(--shadow-panel);
  transform: translateY(-2px);
}

.preview-card figcaption {
  padding-top: 1rem;
  color: var(--color-muted);
  font-size: 0.95rem;
}

.series-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.series-card {
  min-height: 9rem;
  padding: 1.35rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.series-card:hover {
  border-color: var(--color-line-strong);
  box-shadow: var(--shadow-panel);
  transform: translateY(-2px);
}

.series-card h3 {
  margin: 0 0 0.7rem;
  font-size: 1.05rem;
}

.series-card.current {
  border-color: var(--color-line-strong);
  background: linear-gradient(180deg, #ffffff, var(--color-panel-soft));
}

.about-panel {
  padding: clamp(2rem, 4vw, 3rem);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-panel);
  box-shadow: var(--shadow-soft);
}

.about-panel > * + * {
  margin-top: var(--space-md);
}

.about-contact {
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-line);
}

.about-contact p {
  margin: var(--space-xs) 0 0;
  color: var(--color-muted);
}

.launch-shell {
  display: grid;
  grid-template-columns: minmax(0, 0.4fr) minmax(0, 0.6fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: stretch;
  padding: clamp(1.5rem, 4vw, 3rem);
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.86), rgba(248, 243, 234, 0.76)),
    var(--color-panel-soft);
  box-shadow: var(--shadow-panel);
}

.launch-copy {
  align-self: center;
}

.launch-copy h2 {
  max-width: 11ch;
}

.microcopy {
  margin-top: var(--space-lg);
  color: var(--color-muted);
  font-size: 0.95rem;
}

.launch-panel {
  display: grid;
  align-content: start;
  gap: var(--space-lg);
  padding: clamp(1.5rem, 3vw, 2.35rem);
  border-color: var(--color-line-strong);
  background: #ffffff;
  box-shadow: 0 22px 54px rgba(37, 34, 32, 0.1);
}

.launch-action {
  display: grid;
  gap: var(--space-md);
}

.utility-label {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.launch-links {
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-line);
}

.launch-links a {
  color: var(--color-muted);
}

.site-footer {
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--color-line);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr;
  gap: var(--space-lg);
  align-items: start;
}

@media (max-width: 64rem) {
  .header-inner {
    grid-template-columns: 1fr auto;
  }

  .site-nav {
    grid-column: 1 / -1;
    justify-content: flex-start;
  }

  .preview-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .series-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .launch-shell {
    grid-template-columns: 1fr;
  }

  .launch-copy h2 {
    max-width: none;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 48rem) {
  .header-inner,
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .header-inner {
    gap: var(--space-md);
    padding: 1rem 0;
  }

  .button-small {
    justify-self: start;
  }

  .hero {
    padding-top: 3.5rem;
  }

  .hero-grid,
  .launch-shell {
    padding: 1.15rem;
  }
}

@media (max-width: 36rem) {
  .container {
    width: min(calc(100% - 1.25rem), var(--container));
  }

  .section {
    padding: 4.75rem 0;
  }

  .preview-grid,
  .series-grid {
    grid-template-columns: 1fr;
  }

  .wordmark-tagline {
    max-width: 14rem;
  }

  .hero-release h1 {
    font-size: 2.2rem;
  }

  .preview-card,
  .series-card,
  .launch-panel,
  .about-panel {
    border-radius: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .site-header {
    transition: none;
  }
}