:root {
  --ink: #1a1a1a;
  --paper: #faf8f4;
  --paper-deep: #f0ebe3;
  --muted: #5c5c5c;
  --line: #d8d0c4;
  --accent: #2b2b2b;
  --max: 1080px;
  --radius: 12px;
  --shadow: 0 18px 50px rgba(26, 26, 26, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
}

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

a {
  color: var(--ink);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(250, 248, 244, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

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

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
}

.brand img {
  width: min(220px, 52vw);
}

.site-nav {
  display: flex;
  gap: 1.25rem;
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}

.site-nav a {
  text-decoration: none;
  padding-bottom: 0.15rem;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover,
.site-nav a.active {
  border-bottom-color: var(--ink);
}

.hero {
  padding: 4rem 0 3rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}

.eyebrow {
  font-family: "Helvetica Neue", Arial, sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  color: var(--muted);
  margin: 0 0 0.75rem;
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 4rem);
  line-height: 1.05;
  margin: 0 0 1rem;
  font-weight: 700;
}

.lead {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 38rem;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.75rem;
}

.button {
  display: inline-block;
  font-family: "Helvetica Neue", Arial, sans-serif;
  text-decoration: none;
  padding: 0.8rem 1.25rem;
  border-radius: 999px;
  border: 1px solid var(--ink);
  transition: transform 0.15s ease, background 0.15s ease;
}

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

.button-primary {
  background: var(--ink);
  color: var(--paper);
}

.button-secondary {
  background: transparent;
}

.cover-card {
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
}

.cover-card img {
  border-radius: 8px;
}

.section {
  padding: 3.5rem 0;
}

.section-alt {
  background: var(--paper-deep);
  border-block: 1px solid var(--line);
}

.section h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin: 0 0 1rem;
}

.section-intro {
  color: var(--muted);
  max-width: 42rem;
  margin-bottom: 2rem;
}

.feature-grid,
.two-col,
.gallery {
  display: grid;
  gap: 1.25rem;
}

.feature-grid {
  grid-template-columns: repeat(3, 1fr);
}

.feature-card,
.info-card {
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.feature-card h3,
.info-card h3 {
  margin-top: 0;
  font-size: 1.15rem;
}

.two-col {
  grid-template-columns: 0.9fr 1.1fr;
  align-items: center;
  gap: 2rem;
}

.gallery {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.gallery figure {
  margin: 0;
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.gallery figcaption {
  padding: 0.75rem 0.9rem;
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 0.85rem;
  color: var(--muted);
}

.book-meta {
  display: grid;
  gap: 0.75rem;
  margin: 1.5rem 0;
  font-family: "Helvetica Neue", Arial, sans-serif;
}

.book-meta dt {
  font-weight: 700;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.book-meta dd {
  margin: 0.15rem 0 0;
}

.contact-panel {
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
  max-width: 36rem;
}

.contact-panel input,
.contact-panel textarea {
  width: 100%;
  margin-top: 0.35rem;
  margin-bottom: 1rem;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  font: inherit;
  background: var(--paper);
}

.site-footer {
  padding: 2rem 0 3rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 0.92rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

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

@media (max-width: 860px) {
  .hero-grid,
  .two-col,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .site-nav {
    gap: 0.85rem;
    font-size: 0.88rem;
  }

  .hero {
    padding-top: 2.5rem;
  }
}