:root {
  --bg: #FFF6F0;
  --surface: #FFFFFF;
  --primary: #FF8FAB;
  --primary-dark: #E5708D;
  --accent: #C8B6FF;
  --text: #6B4F4F;
  --text-sub: #B98E96;
  --border: #F6E3E8;
  --radius: 18px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "Hiragino Maru Gothic ProN", "Hiragino Sans", sans-serif;
  line-height: 1.75;
  font-size: 16px;
}

/* ── Header ── */
header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}

header .logo {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary-dark);
  letter-spacing: 0.02em;
}

header nav {
  margin-left: auto;
  display: flex;
  gap: 20px;
}

header nav a {
  color: var(--text-sub);
  text-decoration: none;
  font-size: 14px;
}

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

/* ── Hero ── */
.hero {
  text-align: center;
  padding: 72px 24px 56px;
}

.hero .app-icon {
  width: 100px;
  height: 100px;
  border-radius: 24px;
  background: linear-gradient(135deg, #FFD9E6 0%, #FF8FAB 60%, #C8B6FF 100%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 50px;
  margin-bottom: 24px;
  box-shadow: 0 8px 24px rgba(255,143,171,0.35);
}

.hero h1 {
  font-size: 36px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.hero .tagline {
  font-size: 18px;
  color: var(--text-sub);
  margin-bottom: 32px;
}

/* ── Section ── */
.section {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 24px;
}

.section h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 24px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--border);
}

/* ── Feature Grid ── */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 8px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.feature-card .icon {
  font-size: 28px;
  margin-bottom: 12px;
}

.feature-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text);
}

.feature-card p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.65;
}

/* ── Contact ── */
.contact-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
}

.contact-box p {
  color: var(--text-sub);
  margin-bottom: 16px;
  font-size: 15px;
}

.contact-box a.email-link {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  text-decoration: none;
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
}

.contact-box a.email-link:hover { background: var(--primary-dark); }

/* ── Prose (privacy / terms) ── */
.prose h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-dark);
  margin: 36px 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.prose h2:first-child { margin-top: 0; }

.prose p, .prose li {
  font-size: 15px;
  color: var(--text-sub);
  line-height: 1.8;
}

.prose ul {
  padding-left: 20px;
  margin: 8px 0;
}

.prose li { margin-bottom: 4px; }

.prose .updated {
  font-size: 13px;
  color: #C9AEB4;
  margin-bottom: 32px;
}

/* ── Footer ── */
footer {
  text-align: center;
  padding: 32px 24px;
  font-size: 13px;
  color: #C9AEB4;
  border-top: 1px solid var(--border);
  margin-top: 40px;
}

footer a { color: var(--text-sub); text-decoration: none; margin: 0 8px; }
footer a:hover { color: var(--primary); }

@media (max-width: 480px) {
  .hero h1 { font-size: 28px; }
  .hero .tagline { font-size: 16px; }
  header nav { gap: 12px; }
}