:root {
  --bg: #eff6ff;
  --ink: #1e293b;
  --muted: #475569;
  --brand: #1d4ed8;
  --brand-dark: #1e40af;
  --sky: #7acef0;
  --card: #ffffff;
  --line: #e2e8f0;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

.wrap { max-width: 760px; margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
  max-width: 760px;
  margin: 0 auto;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand img { width: 36px; height: 36px; border-radius: 9px; }
.brand span { font-weight: 800; font-size: 18px; color: var(--ink); }
.nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 700;
  font-size: 15px;
  margin-left: 18px;
}
.nav a:hover { color: var(--brand); }

/* Hero */
.hero {
  background: linear-gradient(180deg, var(--sky) 0%, var(--bg) 100%);
  padding: 56px 0 40px;
  text-align: center;
}
.hero h1 {
  font-size: clamp(30px, 6vw, 46px);
  line-height: 1.1;
  margin: 0 0 14px;
  color: #0b3b57;
}
.hero p.lead {
  font-size: clamp(17px, 3vw, 20px);
  color: #0b3b57;
  max-width: 560px;
  margin: 0 auto 26px;
}
.cta {
  display: inline-block;
  background: var(--brand);
  color: #fff;
  text-decoration: none;
  font-weight: 800;
  font-size: 17px;
  padding: 14px 26px;
  border-radius: 14px;
}
.cta:hover { background: var(--brand-dark); }
.cta.secondary { background: transparent; color: var(--brand); }
.cta-note { font-size: 13px; color: var(--muted); margin-top: 10px; }

/* Sections */
section { padding: 40px 0; }
h2 { font-size: clamp(22px, 4vw, 28px); margin: 0 0 8px; }
.section-intro { color: var(--muted); margin: 0 0 24px; }

.features { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .features { grid-template-columns: 1fr 1fr; } }
.feature {
  background: var(--card);
  border: 2px solid var(--line);
  border-radius: 16px;
  padding: 20px;
}
.feature h3 { margin: 0 0 6px; font-size: 18px; }
.feature p { margin: 0; color: var(--muted); font-size: 15px; }
.emoji { font-size: 26px; display: block; margin-bottom: 8px; }

.mission {
  background: var(--card);
  border: 2px solid var(--line);
  border-radius: 18px;
  padding: 28px;
  margin: 8px 0;
}

/* Legal / support pages */
.doc { padding: 32px 0 60px; }
.doc h1 { font-size: clamp(26px, 5vw, 34px); margin: 0 0 6px; }
.doc .updated { color: var(--muted); font-size: 14px; margin: 0 0 28px; }
.doc h2 { font-size: 20px; margin: 28px 0 8px; }
.doc p, .doc li { color: var(--muted); }
.doc a { color: var(--brand); }
.doc ul { padding-left: 22px; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 20px 48px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}
.site-footer a { color: var(--muted); text-decoration: none; margin: 0 10px; }
.site-footer a:hover { color: var(--brand); }
.site-footer .copyright { margin-top: 12px; font-size: 13px; }