/* ===========================================================
   Marked Books · Vol. 1 Landing
   Brand Guidelines v1.0 locked palette + type system
   =========================================================== */

:root {
  --cream:     #FAF7F2;
  --ink:       #1A1A1F;
  --coral:     #FF5A3C;
  --coral-ink: #E84A2D;
  --soft:      #FFE4D6;
  --rule:      #E8E2D8;
  --muted:     #6B6B73;

  --serif: "DM Serif Display", "Georgia", serif;
  --sans:  "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  --max:   1120px;
  --narrow: 720px;
  --gap:   clamp(16px, 4vw, 32px);
  --pad-y: clamp(48px, 9vw, 120px);
}

/* ---------- Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--coral);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
  transition: color .15s ease;
}
a:hover { color: var(--coral-ink); }

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--cream);
  padding: 12px 16px;
  z-index: 100;
}
.skip:focus { left: 16px; top: 16px; }

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}
.container.narrow { max-width: var(--narrow); }

/* ---------- Typography ---------- */
h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: -0.01em;
  margin: 0 0 16px;
  color: var(--ink);
  line-height: 1.15;
}

h1 { font-size: clamp(36px, 6.5vw, 64px); }
h2 { font-size: clamp(28px, 4.6vw, 44px); }
h3 { font-size: clamp(20px, 2.6vw, 24px); font-family: var(--sans); font-weight: 700; letter-spacing: -0.005em; }

p { margin: 0 0 18px; }
p:last-child { margin-bottom: 0; }

.eyebrow {
  font-family: var(--sans);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--coral-ink);
  margin: 0 0 16px;
}

.lede {
  font-size: clamp(18px, 2.4vw, 22px);
  line-height: 1.45;
  color: var(--ink);
  margin-bottom: 28px;
  max-width: 720px;
}

.section-title { max-width: 880px; }

/* ---------- Wordmark ---------- */
.wordmark, .wordmark-small {
  font-family: var(--sans);
  font-weight: 700;
  letter-spacing: 0.06em; /* +60 tracking equivalent */
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink);
}
.wordmark { font-size: 18px; }
.wordmark-small { font-size: 16px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  background: rgba(250, 247, 242, 0.92);
  backdrop-filter: saturate(150%) blur(8px);
  -webkit-backdrop-filter: saturate(150%) blur(8px);
  border-bottom: 1px solid var(--rule);
  z-index: 10;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.site-nav {
  display: flex;
  gap: 24px;
}
.site-nav a {
  font-size: 15px;
  text-decoration: none;
  color: var(--ink);
}
.site-nav a:hover { color: var(--coral-ink); }
@media (max-width: 520px) {
  .site-nav a:nth-child(2) { display: none; } /* hide About on tiny phones */
}

/* ---------- Sections ---------- */
.section {
  padding: var(--pad-y) 0;
}
.section-soft {
  background: var(--soft);
}

/* ---------- Hero ---------- */
.hero {
  padding: clamp(40px, 8vw, 72px) 0 clamp(48px, 9vw, 96px);
}
.hero-inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}
.hero-title {
  margin: 4px 0 12px;
  max-width: 900px;
}
.hero-sub {
  font-size: clamp(17px, 2.2vw, 20px);
  color: var(--ink);
  max-width: 640px;
  margin-bottom: 24px;
}
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 14px;
}
.price-note {
  font-size: 14px;
  color: var(--muted);
}
.price-note strong {
  color: var(--ink);
  font-weight: 700;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--sans);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.01em;
  padding: 14px 24px;
  border-radius: 6px;
  border: 2px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: transform .12s ease, background-color .12s ease, border-color .12s ease, color .12s ease;
  min-height: 48px;
  line-height: 1.2;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:focus-visible {
  outline: 3px solid var(--ink);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--coral);
  color: var(--cream);
  border-color: var(--coral);
}
.btn-primary:hover {
  background: var(--coral-ink);
  border-color: var(--coral-ink);
  color: var(--cream);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink);
}
.btn-ghost:hover {
  background: var(--ink);
  color: var(--cream);
}

.btn-large {
  font-size: 17px;
  padding: 16px 28px;
  min-height: 54px;
}

/* ---------- Grids ---------- */
.grid {
  display: grid;
  gap: 20px;
  margin-top: 32px;
}
.lessons {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.lesson {
  background: var(--cream);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 24px;
}
.section-soft .lesson { background: #fff7f0; }
.lesson-num {
  font-family: var(--serif);
  font-size: 14px;
  color: var(--coral-ink);
  margin: 0 0 8px;
  letter-spacing: 0.04em;
}
.lesson-title { margin: 0 0 6px; font-size: 20px; }
.lesson-tag {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.audience {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.audience-card {
  background: var(--cream);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 28px;
}
.audience-card h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 24px;
  margin-bottom: 10px;
  letter-spacing: -0.005em;
}
.audience-card p {
  color: var(--ink);
  font-size: 16px;
}

.stats {
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
}
.stat {
  text-align: left;
  padding: 24px;
  border-left: 3px solid var(--coral);
  background: var(--cream);
}
.stat-num {
  font-family: var(--serif);
  font-size: clamp(40px, 5vw, 56px);
  margin: 0 0 4px;
  line-height: 1;
  color: var(--ink);
}
.stat-label {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
  letter-spacing: 0.02em;
}

/* ---------- Loop card ---------- */
.loop-card {
  margin-top: 40px;
  padding: 32px;
  background: var(--cream);
  border: 1px solid var(--rule);
  border-radius: 10px;
}
.loop-card .eyebrow { margin-bottom: 12px; }
.loop-card p {
  margin: 0;
  font-size: clamp(16px, 2vw, 18px);
  line-height: 1.55;
}

/* ---------- Final CTA ---------- */
.final-cta {
  background: var(--ink);
  color: var(--cream);
  padding: clamp(56px, 10vw, 112px) 0;
  text-align: left;
}
.final-cta h2 {
  color: var(--cream);
  font-size: clamp(32px, 5.4vw, 52px);
  margin-bottom: 14px;
}
.final-cta p {
  color: var(--cream);
  font-size: clamp(17px, 2vw, 19px);
  margin-bottom: 28px;
  opacity: 0.9;
}
.final-cta .newsletter-line {
  font-size: 15px;
  margin-top: 18px;
  opacity: 0.75;
}
.final-cta .newsletter-line a {
  color: var(--cream);
  text-decoration-color: var(--coral);
}
.final-cta .newsletter-line a:hover {
  color: var(--coral);
}
.final-cta .btn-primary:hover {
  background: #fff;
  color: var(--ink);
  border-color: #fff;
}

.signoff {
  font-family: var(--serif);
  font-size: clamp(22px, 3vw, 28px);
  margin-top: 24px;
  color: var(--coral-ink);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--cream);
  border-top: 1px solid var(--rule);
  padding: 48px 0 56px;
}
.footer-inner {
  display: grid;
  gap: 24px;
  align-items: start;
}
.footer-brand .tagline {
  font-size: 14px;
  color: var(--muted);
  margin: 6px 0 0;
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}
.footer-nav a {
  font-size: 14px;
  color: var(--ink);
  text-decoration: none;
}
.footer-nav a:hover { color: var(--coral-ink); }
.copy {
  font-size: 13px;
  color: var(--muted);
  margin: 0;
}

@media (min-width: 720px) {
  .footer-inner {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
  .copy {
    grid-column: 1 / -1;
    padding-top: 16px;
    border-top: 1px solid var(--rule);
  }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------- Print ---------- */
@media print {
  .site-header, .site-nav, .final-cta, .cta-row, .site-footer { display: none; }
  body { background: #fff; color: #000; }
}