:root {
  --brand-blue: #00508F;
  --brand-blue-light: #2A6BA5;
  --brand-raspberry: #D81B60;
  --bg: #F0F3F9;
  --card: #FFFFFF;
  --text: #24384B;
  --text-secondary: #5F6F80;
  --border: #DDE5F0;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0F1A26;
    --card: #16222F;
    --text: #F2F6FA;
    --text-secondary: #A9B8C8;
    --border: #23374A;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a { color: var(--brand-blue-light); }

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 20px;
}

header.site {
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
}

header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text);
}

.brand img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

.brand .wordmark {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand .wordmark .x {
  color: var(--brand-raspberry);
}

nav.site a {
  margin-left: 20px;
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 15px;
}

nav.site a:hover { color: var(--brand-blue-light); }

main { padding: 48px 0 80px; }

.hero {
  text-align: center;
  padding: 40px 0 56px;
}

.hero h1 {
  font-size: 40px;
  font-weight: 900;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
}

.hero h1 .x { color: var(--brand-raspberry); }

.hero p.tagline {
  font-size: 19px;
  color: var(--text-secondary);
  max-width: 480px;
  margin: 0 auto 28px;
}

.badges {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--brand-blue);
  color: #fff;
  padding: 12px 20px;
  border-radius: 14px;
  text-decoration: none;
  font-weight: 700;
  font-size: 15px;
}

.badge.secondary {
  background: transparent;
  color: var(--brand-blue-light);
  border: 1.5px solid var(--border);
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 8px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 22px;
}

.card .icon {
  font-size: 26px;
  margin-bottom: 10px;
}

.card h3 {
  margin: 0 0 6px;
  font-size: 17px;
}

.card p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 14.5px;
}

h1, h2, h3 { color: var(--text); }

.page-title {
  font-size: 30px;
  font-weight: 800;
  margin-bottom: 4px;
}

.updated {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 36px;
}

.doc h2 {
  font-size: 19px;
  margin-top: 36px;
  margin-bottom: 10px;
}

.doc p, .doc li {
  color: var(--text);
  font-size: 15.5px;
}

.doc ul { padding-left: 20px; }

.contact-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 24px;
  margin: 28px 0;
}

.contact-card a.email {
  font-size: 18px;
  font-weight: 700;
}

.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 18px 0;
}

.faq-item h3 {
  margin: 0 0 6px;
  font-size: 16px;
}

.faq-item p {
  margin: 0;
  color: var(--text-secondary);
}

footer.site {
  border-top: 1px solid var(--border);
  padding: 28px 0;
  text-align: center;
  color: var(--text-secondary);
  font-size: 13.5px;
}

footer.site a {
  color: var(--text-secondary);
  margin: 0 8px;
}

.placeholder {
  background: rgba(216, 27, 96, 0.12);
  color: var(--brand-raspberry);
  padding: 1px 6px;
  border-radius: 6px;
  font-weight: 700;
}