:root {
  --ink: #101827;
  --deep: #111827;
  --deep-2: #182235;
  --paper: #f6f1e7;
  --paper-2: #eee6d7;
  --gold: #c8a96b;
  --gold-2: #e2c98f;
  --muted: #667085;
  --white: #ffffff;
  --border: rgba(16, 24, 39, 0.12);
  --shadow: 0 18px 50px rgba(16, 24, 39, 0.10);
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.6;
}

a {
  color: inherit;
}

.wrap {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.narrow {
  max-width: 780px;
}

.center {
  text-align: center;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(17, 24, 39, 0.96);
  color: var(--white);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  text-decoration: none;
  font-size: 0.98rem;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.nav {
  display: flex;
  gap: 26px;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.92rem;
}

.nav a {
  text-decoration: none;
  opacity: 0.82;
}

.nav a:hover,
.nav a:focus {
  opacity: 1;
}

.hero {
  color: var(--white);
  background:
    radial-gradient(circle at 70% 20%, rgba(200, 169, 107, 0.20), transparent 32%),
    linear-gradient(145deg, var(--deep), var(--deep-2));
  min-height: 660px;
  display: grid;
  align-items: center;
  border-bottom: 5px solid var(--gold);
}

.hero-inner {
  padding: 110px 0 120px;
  max-width: 980px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--gold);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.80rem;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.hero h1,
.section h2 {
  margin: 0;
  line-height: 1.08;
  font-weight: 600;
}

.hero h1 {
  max-width: 930px;
  font-size: clamp(3rem, 7vw, 6.3rem);
  letter-spacing: -0.035em;
}

.hero-copy {
  max-width: 700px;
  margin: 28px 0 0;
  font-size: clamp(1.15rem, 2vw, 1.45rem);
  color: rgba(255, 255, 255, 0.80);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  text-decoration: none;
  border-radius: 999px;
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 700;
  font-size: 0.92rem;
  transition: transform 140ms ease, background 140ms ease;
}

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

.primary {
  background: var(--gold);
  color: var(--deep);
}

.secondary {
  border: 1px solid rgba(255,255,255,0.3);
  color: var(--white);
}

.section {
  padding: 105px 0;
}

.section.alt {
  background: var(--paper-2);
}

.section h2 {
  font-size: clamp(2.3rem, 5vw, 4.2rem);
  letter-spacing: -0.025em;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 48px;
}

.section-heading > p:last-child,
.section .large-copy {
  font-size: 1.24rem;
}

.book-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.book-card {
  position: relative;
  min-height: 290px;
  padding: 34px;
  background: rgba(255,255,255,0.62);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.book-mark {
  margin-bottom: 38px;
  color: var(--gold);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.book-card h3 {
  margin: 0 0 12px;
  font-size: 1.75rem;
  line-height: 1.15;
}

.book-card p {
  margin: 0 0 26px;
  color: #364152;
}

.status {
  position: absolute;
  bottom: 28px;
  left: 34px;
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.readers {
  background:
    radial-gradient(circle at 50% 0%, rgba(200, 169, 107, 0.18), transparent 34%),
    var(--deep);
  color: var(--white);
}

.readers .large-copy {
  color: rgba(255,255,255,0.78);
}

.signup-placeholder {
  margin: 34px auto 0;
  max-width: 600px;
  padding: 24px 28px;
  border: 1px solid rgba(226,201,143,0.28);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.05);
  font-family: Arial, Helvetica, sans-serif;
}

.signup-placeholder strong,
.signup-placeholder span {
  display: block;
}

.signup-placeholder strong {
  margin-bottom: 6px;
  color: var(--gold-2);
}

.signup-placeholder span {
  color: rgba(255,255,255,0.72);
  font-size: 0.92rem;
}

.site-footer {
  background: #0b111d;
  color: rgba(255,255,255,0.62);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.84rem;
}

.footer-inner {
  min-height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

@media (max-width: 760px) {
  .header-inner {
    min-height: 64px;
  }

  .nav {
    gap: 14px;
    font-size: 0.82rem;
  }

  .nav a:nth-child(2) {
    display: none;
  }

  .hero {
    min-height: 560px;
  }

  .hero-inner {
    padding: 82px 0 90px;
  }

  .section {
    padding: 78px 0;
  }

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

  .footer-inner {
    min-height: 100px;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
  }
}