:root {
  --primary: #0f8b8d;
  --primary-dark: #0a5f61;
  --accent: #ff6f61;
  --correct: #2fb170;

  --bg: #fbf7f0;
  --surface: #ffffff;
  --primary-light: #cdece9;
  --text: #1b2a29;
  --text-secondary: #5e6e6c;
  --border: #e4ddd0;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1615;
    --surface: #18211f;
    --primary-light: #24312e;
    --text: #edf3f1;
    --text-secondary: #9dafac;
    --border: #24312e;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); }

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

header.site {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border);
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 800;
  font-size: 1.25rem;
  text-decoration: none;
  color: var(--text);
}

.brand .dot {
  width: 12px;
  height: 12px;
  border-radius: 4px;
  background: var(--primary);
  display: inline-block;
}

nav.site a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  margin-left: 1.75rem;
}

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

main {
  padding: 3.5rem 0 5rem;
}

h1 {
  font-size: 2.4rem;
  font-weight: 800;
  line-height: 1.15;
  margin: 0 0 1rem;
}

h2 {
  font-size: 1.5rem;
  font-weight: 800;
  margin: 2.5rem 0 1rem;
}

.tagline {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 42ch;
  margin: 0 0 2rem;
}

.hero {
  text-align: center;
  padding: 2rem 0 1rem;
}

.hero .tagline { margin-left: auto; margin-right: auto; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--primary-light);
  color: var(--primary-dark);
  border-radius: 999px;
  padding: 0.5rem 1.1rem;
  font-weight: 700;
  font-size: 0.9rem;
}

@media (prefers-color-scheme: dark) {
  .badge { color: var(--primary); }
}

.features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin: 2.5rem 0;
}

@media (max-width: 560px) {
  .features { grid-template-columns: 1fr; }
}

.feature {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.4rem;
}

.feature .icon {
  font-size: 1.5rem;
  margin-bottom: 0.6rem;
  display: block;
}

.feature h3 {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
  font-weight: 700;
}

.feature p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.92rem;
}

.faq dt {
  font-weight: 700;
  margin-top: 1.5rem;
}

.faq dd {
  margin: 0.4rem 0 0;
  color: var(--text-secondary);
}

.contact-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.5rem;
  margin: 1.5rem 0;
}

.contact-card a {
  font-weight: 700;
  text-decoration: none;
}

p.meta {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

footer.site {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

footer.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

footer.site a {
  color: var(--text-secondary);
  margin-right: 1.25rem;
  text-decoration: none;
}

footer.site a:hover { color: var(--primary); }

.policy h3 {
  font-size: 1.1rem;
  margin: 2rem 0 0.5rem;
}

.policy p, .policy li {
  color: var(--text-secondary);
}

.policy ul { padding-left: 1.25rem; }