:root {
  --bg: #f5efe4;
  --surface: #fffaf2;
  --surface-2: #ebe2d3;
  --text: #171815;
  --muted: #5e625b;
  --line: #d6cdbf;
  --accent: #0f6963;
  --accent-dark: #0a4c47;
  --shadow: 0 16px 50px rgba(45, 39, 31, 0.08);
  --radius: 22px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.6; }
a { color: inherit; }
.container { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.site-header { position: sticky; top: 0; z-index: 20; background: rgba(245, 239, 228, 0.88); backdrop-filter: blur(14px); border-bottom: 1px solid rgba(214, 205, 191, 0.8); }
.nav-wrap { height: 72px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-family: Manrope, Inter, sans-serif; font-weight: 800; letter-spacing: -0.03em; }
.brand-mark { width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center; color: white; background: var(--accent); font-size: 14px; letter-spacing: -0.04em; }
.brand-text { font-size: 19px; }
.nav { display: flex; align-items: center; gap: 26px; }
.nav a { text-decoration: none; color: var(--muted); font-size: 14px; font-weight: 600; }
.nav a:hover { color: var(--text); }
.nav-cta { padding: 9px 14px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,.36); }
.hero { padding: 96px 0 72px; }
.hero-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 60px; align-items: center; }
.eyebrow { display: inline-block; color: var(--accent); font-size: 13px; font-weight: 800; letter-spacing: .11em; text-transform: uppercase; }
h1, h2, h3 { font-family: Manrope, Inter, sans-serif; letter-spacing: -0.035em; line-height: 1.08; margin-top: 0; }
h1 { margin: 18px 0 22px; max-width: 760px; font-size: clamp(48px, 7vw, 84px); font-weight: 800; }
h2 { font-size: clamp(34px, 4vw, 52px); margin-bottom: 16px; }
h3 { font-size: 24px; margin-bottom: 10px; }
.hero-lead { max-width: 680px; font-size: clamp(18px, 2vw, 22px); color: var(--muted); }
.hero-actions { display: flex; gap: 12px; margin: 32px 0 18px; flex-wrap: wrap; }
.btn { display: inline-flex; justify-content: center; align-items: center; min-height: 48px; padding: 0 20px; border-radius: 14px; text-decoration: none; font-weight: 800; font-size: 14px; }
.btn.primary { background: var(--accent); color: white; }
.btn.primary:hover { background: var(--accent-dark); }
.btn.secondary { border: 1px solid var(--line); background: rgba(255,255,255,.35); }
.microcopy { color: var(--muted); font-size: 13px; }
.hero-card { min-height: 420px; display: flex; align-items: center; justify-content: center; }
.signal-card { width: min(100%, 380px); padding: 34px; border-radius: 28px; border: 1px solid var(--line); background: radial-gradient(circle at 80% 10%, rgba(15,105,99,.13), transparent 34%), var(--surface); box-shadow: var(--shadow); transform: rotate(2deg); }
.signal-label { font-family: Manrope, sans-serif; font-size: 38px; font-weight: 800; letter-spacing: -.05em; }
.signal-line { height: 1px; background: var(--line); margin: 24px 0; }
.signal-card p { margin: 14px 0; padding: 10px 0; border-bottom: 1px dashed var(--line); font-weight: 600; }
.section { padding: 88px 0; }
.section.alt { background: var(--surface-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { max-width: 720px; margin-bottom: 36px; }
.section-head p { color: var(--muted); font-size: 18px; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card { min-height: 270px; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(255,255,255,.38); }
.card.featured { background: var(--surface); box-shadow: var(--shadow); }
.card p { color: var(--muted); }
.card a { color: var(--accent); text-decoration: none; font-weight: 800; }
.card-tag { display: inline-block; margin-bottom: 42px; color: var(--accent); font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.book-grid { display: grid; gap: 14px; }
.book-card { display: grid; grid-template-columns: 72px 1fr; gap: 22px; padding: 24px; border-radius: 18px; background: rgba(255,250,242,.74); border: 1px solid rgba(214,205,191,.9); }
.book-number { width: 54px; height: 54px; display: grid; place-items: center; border-radius: 16px; background: var(--accent); color: white; font-family: Manrope, sans-serif; font-weight: 800; }
.book-card h3 { font-size: 21px; margin-top: 1px; }
.book-card p { color: var(--muted); margin: 8px 0 12px; }
.book-card a { color: var(--accent); font-weight: 800; text-decoration: none; }
.book-group-label { display: block; margin: 34px 0 14px; }
.book-group-label:first-of-type { margin-top: 0; }
.coming-soon { color: var(--muted); font-weight: 800; }
.notice { margin-top: 18px; padding: 16px 18px; border-radius: 14px; border: 1px dashed #b9ad9a; color: #615a50; background: rgba(255,255,255,.34); font-size: 14px; }
.about-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 80px; }
.about-copy { font-size: 19px; color: var(--muted); }
.about-copy p:first-child { margin-top: 0; }
.contact-section { padding-top: 24px; }
.contact-card { display: flex; justify-content: space-between; align-items: center; gap: 30px; padding: 42px; border-radius: 28px; background: var(--text); color: white; }
.contact-card .eyebrow { color: #8ed2cc; }
.contact-card h2 { margin: 10px 0 8px; font-size: clamp(28px, 4vw, 42px); }
.contact-card p { margin: 0; color: #c7c9c4; }
.contact-card .btn.primary { background: white; color: var(--text); white-space: nowrap; }
.site-footer { padding: 28px 0 34px; }
.footer-wrap { display: flex; justify-content: space-between; color: var(--muted); font-size: 13px; }
@media (max-width: 850px) {
  .nav a:not(.nav-cta) { display: none; }
  .hero { padding-top: 64px; }
  .hero-grid, .about-grid { grid-template-columns: 1fr; gap: 34px; }
  .hero-card { min-height: auto; }
  .cards { grid-template-columns: 1fr; }
  .book-card { grid-template-columns: 58px 1fr; }
  .contact-card { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 520px) {
  .container { width: min(100% - 28px, 1120px); }
  .hero { padding: 54px 0 48px; }
  h1 { font-size: 48px; }
  .section { padding: 64px 0; }
  .signal-card { transform: none; }
  .book-card { padding: 18px; gap: 14px; }
  .book-number { width: 46px; height: 46px; border-radius: 13px; }
  .contact-card { padding: 28px; }
  .footer-wrap { gap: 12px; flex-direction: column; }
}