:root {
  --bg: #f3efe6;
  --bg-deep: #e8e1d4;
  --ink: #1b2340;
  --muted: #5c6478;
  --accent: #2f6f7e;
  --card: #fffdf8;
  --line: rgba(27, 35, 64, 0.12);
  --max: 42rem;
  --font: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --sans: "Avenir Next", "Segoe UI", Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background:
    radial-gradient(1200px 600px at 10% -10%, #fff8e8 0%, transparent 55%),
    radial-gradient(900px 500px at 100% 0%, #d9ebe7 0%, transparent 50%),
    var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.55;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

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

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: 52rem;
  margin: 0 auto;
  padding: 1.25rem 1.25rem 0.5rem;
}

.brand {
  font-family: var(--font);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.02em;
}

nav {
  display: flex;
  gap: 1rem;
  font-size: 0.95rem;
}

nav a {
  color: var(--muted);
  text-decoration: none;
}

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

.hero,
.doc {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

.referral-card {
  margin: 1.5rem 0 0.5rem;
  padding: 1rem 1.15rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 0.85rem;
  text-align: center;
}

.referral-label {
  margin: 0 0 0.35rem;
  font-size: 0.85rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.referral-code {
  margin: 0;
  font-family: var(--font);
  font-size: 1.85rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--ink);
}

.fineprint {
  margin-top: 1.5rem;
  font-size: 0.88rem;
  color: var(--muted);
  max-width: 28rem;
}

.hero {
  padding-top: 4rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
  color: var(--muted);
  margin: 0 0 0.75rem;
}

h1 {
  font-family: var(--font);
  font-size: clamp(2.2rem, 6vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
}

.lede {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 28rem;
  margin: 0 0 1.75rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.65rem 1.1rem;
  border-radius: 999px;
  background: var(--ink);
  color: #f7f4ec;
  text-decoration: none;
  font-weight: 600;
}

.cta.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}

.cta:hover {
  color: #fff;
  opacity: 0.92;
}

.cta.ghost:hover {
  color: var(--ink);
  background: var(--card);
}

.doc h1 {
  font-size: clamp(1.9rem, 4vw, 2.6rem);
}

.doc h2 {
  font-family: var(--font);
  font-size: 1.35rem;
  margin: 2rem 0 0.6rem;
  letter-spacing: -0.02em;
}

.doc h3 {
  font-size: 1.05rem;
  margin: 1.25rem 0 0.4rem;
}

.doc p,
.doc li {
  color: var(--ink);
}

.doc ul {
  padding-left: 1.2rem;
}

.doc li {
  margin: 0.35rem 0;
}

.meta {
  color: var(--muted);
  font-size: 0.95rem;
  margin-top: -0.25rem;
}

.note {
  margin-top: 2.5rem;
  padding: 1rem 1.1rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--muted);
  font-size: 0.92rem;
}

.foot {
  max-width: 52rem;
  margin: 0 auto;
  padding: 1rem 1.25rem 2.5rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.9rem;
  border-top: 1px solid var(--line);
}

.referral-card {
  margin: 1.5rem 0 0.5rem;
  padding: 1rem 1.15rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 0.85rem;
  text-align: center;
}

.referral-label {
  margin: 0 0 0.35rem;
  font-size: 0.85rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.referral-code {
  margin: 0;
  font-family: var(--font);
  font-size: 1.85rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--ink);
}

.fineprint {
  margin-top: 1.5rem;
  font-size: 0.88rem;
  color: var(--muted);
  max-width: 28rem;
}