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

:root {
  --blue: #1a4fa0;
  --blue-dark: #143d7a;
  --blue-soft: #eef3fc;
  --text: #1a1a1a;
  --muted: #444;
  --border: #d0d7e2;
  --safe: #1a7a3c;
  --warn-bg: #fff8e6;
  --warn-border: #e0c060;
  --radius: 12px;
  --max: 720px;
}

html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 18px;
  line-height: 1.55;
  color: var(--text);
  background: #f5f7fb;
}

a { color: var(--blue); font-weight: 600; }
a:hover { text-decoration: underline; }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 20px 64px;
}

/* Header */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
  position: sticky;
  top: 0;
  z-index: 10;
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--blue);
  font-weight: 700;
  font-size: 20px;
}
.brand img { width: 40px; height: 40px; border-radius: 10px; }
.nav { display: flex; gap: 16px; flex-wrap: wrap; font-size: 16px; }
.nav a { text-decoration: none; color: var(--muted); font-weight: 600; }
.nav a:hover { color: var(--blue); }

/* Hero */
.hero {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px 28px;
  margin-top: 28px;
  text-align: center;
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}
.hero-icon {
  width: 88px;
  height: 88px;
  border-radius: 20px;
  margin-bottom: 16px;
}
.hero h1 {
  font-size: 32px;
  color: var(--blue);
  line-height: 1.2;
  margin-bottom: 10px;
}
.hero .tagline {
  font-size: 20px;
  color: var(--muted);
  margin-bottom: 20px;
}
.hero .lead {
  max-width: 34em;
  margin: 0 auto 24px;
  color: var(--text);
}

.btn {
  display: inline-block;
  background: var(--blue);
  color: #fff !important;
  text-decoration: none !important;
  font-weight: 700;
  font-size: 18px;
  padding: 14px 22px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
}
.btn:hover { background: var(--blue-dark); }
.btn-secondary {
  background: var(--blue-soft);
  color: var(--blue) !important;
}
.btn-secondary:hover { background: #dce6f8; }
.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 8px;
}

/* Sections */
section {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px 24px;
  margin-top: 20px;
}
section h2 {
  font-size: 24px;
  color: var(--blue-dark);
  margin-bottom: 14px;
}
section h3 {
  font-size: 19px;
  margin: 18px 0 8px;
}
section p, section li { margin-bottom: 10px; color: var(--text); }
section ul, section ol { padding-left: 22px; margin-bottom: 12px; }

.steps { list-style: none; padding-left: 0; }
.steps li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 16px;
}
.step-num {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--blue);
  color: #fff;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.callout {
  background: var(--blue-soft);
  border: 1px solid #c5d4ef;
  border-radius: var(--radius);
  padding: 14px 16px;
  margin: 14px 0;
}
.warn {
  background: var(--warn-bg);
  border: 2px solid var(--warn-border);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin: 14px 0;
}

.footer {
  text-align: center;
  color: var(--muted);
  font-size: 15px;
  margin-top: 36px;
  padding-top: 20px;
}
.footer a { font-weight: 600; }

@media (max-width: 520px) {
  .hero h1 { font-size: 26px; }
  body { font-size: 17px; }
  .hero { padding: 28px 18px; }
}