:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 5rem);
  --text-hero: clamp(3rem, 0.5rem + 7vw, 8rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  --font-display: 'Zodiak', Georgia, serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;

  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
}

:root,
[data-theme='light'] {
  --color-bg: #f6efe3;
  --color-surface: #fffaf1;
  --color-surface-2: #fbf3e8;
  --color-surface-offset: #efe1ce;
  --color-divider: #d8c6ad;
  --color-border: #ccb596;
  --color-text: #241c15;
  --color-text-muted: #695946;
  --color-text-faint: #9a876d;
  --color-text-inverse: #fffaf1;
  --color-primary: #7a3d17;
  --color-primary-hover: #5c2d10;
  --color-primary-active: #3e1d0b;
  --color-primary-highlight: #ead4bd;
  --color-blue: #26384e;
  --color-success: #406f35;
  --color-warning: #8c4b17;
  --color-error: #9a294c;
  --shadow-sm: 0 1px 2px oklch(0.28 0.04 65 / 0.07);
  --shadow-md: 0 8px 24px oklch(0.28 0.04 65 / 0.12);
  --shadow-lg: 0 22px 60px oklch(0.24 0.04 65 / 0.18);
}

[data-theme='dark'] {
  --color-bg: #16120f;
  --color-surface: #211a15;
  --color-surface-2: #2a211a;
  --color-surface-offset: #31261e;
  --color-divider: #473729;
  --color-border: #604936;
  --color-text: #efe3d1;
  --color-text-muted: #c2ad91;
  --color-text-faint: #8f7a61;
  --color-text-inverse: #211a15;
  --color-primary: #d89555;
  --color-primary-hover: #f0b371;
  --color-primary-active: #ffd09b;
  --color-primary-highlight: #47311f;
  --color-blue: #9fb3ca;
  --color-success: #8fbd7b;
  --color-warning: #dd9b55;
  --color-error: #e07891;
  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.25);
  --shadow-md: 0 8px 24px oklch(0 0 0 / 0.32);
  --shadow-lg: 0 22px 60px oklch(0 0 0 / 0.42);
}

body {
  background:
    radial-gradient(circle at 10% 0%, oklch(from var(--color-primary) l c h / 0.12), transparent 30rem),
    linear-gradient(180deg, var(--color-bg), var(--color-surface-2));
}

a {
  color: var(--color-primary);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

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

.skip-link {
  position: fixed;
  inset-block-start: var(--space-3);
  inset-inline-start: var(--space-3);
  z-index: 100;
  transform: translateY(-150%);
  padding: var(--space-3) var(--space-4);
  color: var(--color-text-inverse);
  background: var(--color-primary);
  border-radius: var(--radius-full);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: oklch(from var(--color-bg) l c h / 0.88);
  border-bottom: 1px solid oklch(from var(--color-text) l c h / 0.1);
  backdrop-filter: blur(18px);
}

.nav {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand-mark {
  width: 2.25rem;
  height: 2.25rem;
  color: var(--color-primary);
}

.nav-links {
  display: none;
  align-items: center;
  gap: var(--space-5);
  font-size: var(--text-sm);
}

.nav-links a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 600;
}

.nav-links a:hover {
  color: var(--color-text);
}

.theme-toggle {
  min-width: 2.75rem;
  min-height: 2.75rem;
  display: inline-grid;
  place-items: center;
  color: var(--color-text);
  border: 1px solid oklch(from var(--color-text) l c h / 0.14);
  border-radius: var(--radius-full);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.theme-toggle:hover {
  border-color: oklch(from var(--color-primary) l c h / 0.45);
}

.hero {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding: clamp(var(--space-10), 9vw, var(--space-24)) var(--space-4) var(--space-16);
  display: grid;
  gap: var(--space-10);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  width: fit-content;
  margin-block-end: var(--space-4);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: '';
  width: var(--space-8);
  height: 1px;
  background: currentColor;
}

h1,
h2,
.book-card-title {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.03em;
}

h1 {
  max-width: 11ch;
  font-size: clamp(3.2rem, 15vw, 8.75rem);
  line-height: 0.88;
}

.subtitle {
  max-width: 34rem;
  margin-block-start: var(--space-6);
  color: var(--color-text-muted);
  font-size: var(--text-lg);
  line-height: 1.45;
}

.hero-actions {
  margin-block-start: var(--space-8);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.button {
  min-height: 2.875rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 800;
  text-decoration: none;
}

.button-primary {
  color: var(--color-text-inverse);
  background: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.button-primary:hover {
  color: var(--color-text-inverse);
  background: var(--color-primary-hover);
}

.button-secondary {
  color: var(--color-text);
  background: oklch(from var(--color-surface) l c h / 0.76);
  border: 1px solid oklch(from var(--color-text) l c h / 0.14);
}

.button-secondary:hover {
  color: var(--color-text);
  border-color: oklch(from var(--color-primary) l c h / 0.42);
}

.book-card {
  position: relative;
  max-width: 27rem;
  justify-self: center;
  padding: var(--space-4);
  border: 1px solid oklch(from var(--color-text) l c h / 0.12);
  border-radius: var(--radius-xl);
  background: linear-gradient(145deg, var(--color-surface), var(--color-surface-2));
  box-shadow: var(--shadow-lg);
}

.book-cover {
  min-height: 34rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-12);
  padding: var(--space-8);
  color: #f9efe1;
  background:
    linear-gradient(135deg, oklch(0.27 0.045 252 / 0.96), oklch(0.17 0.035 45 / 0.98)),
    radial-gradient(circle at 80% 10%, oklch(0.75 0.12 70 / 0.24), transparent 16rem);
  border-radius: calc(var(--radius-xl) - var(--space-2));
  overflow: hidden;
}

.book-cover::before {
  content: '';
  position: absolute;
  inset: var(--space-4);
  border: 1px solid oklch(0.85 0.05 75 / 0.28);
  border-radius: calc(var(--radius-xl) - var(--space-2));
  pointer-events: none;
}

.book-mark {
  width: 4.5rem;
  color: #d89555;
}

.book-card-title {
  font-size: clamp(2.25rem, 9vw, 4.4rem);
  line-height: 0.94;
}

.book-card-subtitle {
  margin-block-start: var(--space-3);
  color: oklch(0.86 0.05 78);
  font-size: var(--text-base);
}

.book-author {
  color: oklch(0.78 0.05 72);
  font-size: var(--text-sm);
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.section {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding: clamp(var(--space-10), 8vw, var(--space-20)) var(--space-4);
}

.section-tight {
  padding-block: clamp(var(--space-8), 5vw, var(--space-16));
}

.section-kicker {
  margin-block-end: var(--space-3);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h2 {
  max-width: 18ch;
  font-size: var(--text-2xl);
}

.overview-grid,
.bio-grid,
.contact-grid {
  display: grid;
  gap: var(--space-8);
}

.lead {
  color: var(--color-text-muted);
  font-size: var(--text-lg);
  line-height: 1.5;
}

.prose {
  display: grid;
  gap: var(--space-5);
  color: var(--color-text-muted);
}

.themes {
  display: grid;
  gap: var(--space-3);
}

.theme-row {
  padding: var(--space-5);
  border: 1px solid oklch(from var(--color-text) l c h / 0.11);
  border-radius: var(--radius-lg);
  background: oklch(from var(--color-surface) l c h / 0.7);
}

.theme-row strong {
  display: block;
  margin-block-end: var(--space-1);
  color: var(--color-text);
  font-size: var(--text-base);
}

.theme-row span {
  color: var(--color-text-muted);
}

.quote-band {
  max-width: none;
  margin-block: var(--space-8);
  padding: clamp(var(--space-8), 8vw, var(--space-20)) var(--space-4);
  color: var(--color-text-inverse);
  background: var(--color-blue);
}

.quote-band blockquote {
  max-width: var(--content-default);
  margin-inline: auto;
  font-family: var(--font-display);
  font-size: clamp(2rem, 8vw, 5.6rem);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 0.98;
}

.excerpt-wrap {
  display: grid;
  gap: var(--space-8);
}

.excerpt-panel {
  padding: clamp(var(--space-6), 5vw, var(--space-12));
  border: 1px solid oklch(from var(--color-text) l c h / 0.12);
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  box-shadow: var(--shadow-md);
}

.excerpt-panel h3 {
  margin-block-end: var(--space-6);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 500;
  letter-spacing: -0.02em;
}

.excerpt-text {
  display: grid;
  gap: var(--space-5);
  color: var(--color-text);
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: clamp(1.05rem, 0.98rem + 0.45vw, 1.28rem);
  line-height: 1.72;
}

.excerpt-note {
  align-self: start;
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--color-primary-highlight);
  color: var(--color-text);
}

.excerpt-note p {
  margin-block-start: var(--space-2);
  color: var(--color-text-muted);
}

.bio-card {
  padding: clamp(var(--space-6), 5vw, var(--space-10));
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  box-shadow: var(--shadow-md);
}

.bio-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-block-start: var(--space-6);
}

.bio-photo {
  display: block;
  width: 100%;
  max-width: 260px;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  margin-block-start: var(--space-6);
  border-radius: 50%;
  box-shadow: var(--shadow-md);
}

.pill {
  display: inline-flex;
  min-height: 2.25rem;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  color: var(--color-text);
  background: var(--color-surface-2);
  border: 1px solid oklch(from var(--color-text) l c h / 0.12);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 800;
}

.contact-card {
  padding: clamp(var(--space-6), 5vw, var(--space-10));
  border: 1px solid oklch(from var(--color-text) l c h / 0.12);
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  box-shadow: var(--shadow-md);
}

.contact-form {
  display: grid;
  gap: var(--space-4);
}

.field {
  display: grid;
  gap: var(--space-2);
}

label {
  color: var(--color-text);
  font-size: var(--text-sm);
  font-weight: 800;
}

input,
textarea {
  width: 100%;
  min-height: 3rem;
  padding: var(--space-3) var(--space-4);
  color: var(--color-text);
  background: var(--color-surface-2);
  border: 1px solid oklch(from var(--color-text) l c h / 0.16);
  border-radius: var(--radius-md);
}

textarea {
  min-height: 9rem;
  resize: vertical;
}

input:focus,
textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px oklch(from var(--color-primary) l c h / 0.14);
  outline: none;
}

.form-note,
.status {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.status {
  min-height: 1.5rem;
}

.site-footer {
  border-top: 1px solid oklch(from var(--color-text) l c h / 0.1);
}

.footer-inner {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding: var(--space-8) var(--space-4);
  display: grid;
  gap: var(--space-3);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

@media (min-width: 760px) {
  .nav-links {
    display: flex;
  }

  .hero {
    grid-template-columns: minmax(0, 1.08fr) minmax(20rem, 0.72fr);
    align-items: center;
  }

  .overview-grid,
  .bio-grid,
  .contact-grid {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    align-items: start;
  }

  .excerpt-wrap {
    grid-template-columns: minmax(0, 1fr) minmax(14rem, 0.38fr);
    align-items: start;
  }

  .footer-inner {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
}

@media (max-width: 430px) {
  .brand span {
    max-width: 11rem;
  }

  .hero-actions .button {
    width: 100%;
  }

  .book-cover {
    min-height: 29rem;
    padding: var(--space-6);
  }
}