:root {
  --pink: #FFBFD4;
  --pink-soft: rgba(255, 191, 212, 0.25);
  --rose: #C65673;
  --rose-deep: #9E3F5B;
  --ink: #1f1f23;
  --ink-soft: #56565d;
  --line: rgba(0, 0, 0, 0.08);
  --bg: #fff;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--rose); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  background: linear-gradient(135deg, var(--pink-soft), #fff);
  border-bottom: 1px solid var(--line);
}

.topbar-inner {
  max-width: 760px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  font-family: "Iowan Old Style", "Palatino", Georgia, serif;
  font-weight: 700;
  font-size: 22px;
  color: var(--rose-deep);
  text-decoration: none;
}

.nav a {
  margin-left: 18px;
  color: var(--ink-soft);
  font-size: 14px;
}

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

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

h1 {
  font-family: "Iowan Old Style", "Palatino", Georgia, serif;
  font-weight: 700;
  font-size: 40px;
  line-height: 1.1;
  margin: 0 0 12px;
  color: var(--rose-deep);
}

h2 {
  font-size: 22px;
  font-weight: 600;
  margin: 36px 0 10px;
  color: var(--ink);
}

h3 {
  font-size: 17px;
  font-weight: 600;
  margin: 24px 0 6px;
}

p, li { color: var(--ink); }
li { margin: 6px 0; }

.lead {
  font-size: 19px;
  color: var(--ink-soft);
  margin-bottom: 8px;
}

.meta {
  font-size: 13px;
  color: var(--ink-soft);
  margin-bottom: 32px;
}

.callout {
  background: var(--pink-soft);
  border-radius: 12px;
  padding: 18px 22px;
  margin: 24px 0;
}

.callout strong { color: var(--rose-deep); }

.toc {
  background: #fafafb;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 22px;
  margin: 20px 0 36px;
}

.toc ul { margin: 8px 0; padding-left: 18px; }
.toc li { margin: 2px 0; }

footer {
  border-top: 1px solid var(--line);
  padding: 32px 24px;
  text-align: center;
  font-size: 13px;
  color: var(--ink-soft);
}

footer a { color: var(--ink-soft); margin: 0 8px; }
footer a:hover { color: var(--rose); }

/* Landing-page hero */
.hero {
  text-align: center;
  padding: 60px 0 24px;
}

.hero .heart {
  font-size: 56px;
  color: var(--rose);
  margin-bottom: 8px;
}

.hero h1 {
  font-size: 56px;
  margin-bottom: 6px;
}

.hero p {
  font-size: 20px;
  color: var(--ink-soft);
  max-width: 460px;
  margin: 12px auto;
}

.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 40px;
}

@media (min-width: 640px) {
  .feature-grid { grid-template-columns: 1fr 1fr; }
}

.feature {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px 22px;
}

.feature h3 {
  margin-top: 0;
  color: var(--rose-deep);
}

.feature p { margin: 4px 0 0; color: var(--ink-soft); font-size: 15px; }