/* ---------- Base reset & typography ---------- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family:
    system-ui,
    -apple-system,
    "Segoe UI",
    Roboto,
    sans-serif;
  line-height: 1.5;
  color: #1f2937;
  background: #f8fafc;
  padding: 2rem;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: #2563eb;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* ---------- Hero ---------- */
.hero {
  min-height: 60vh;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #1e3a8a, #2563eb);
  color: #fff;
  border-radius: 0.75rem;
  padding: 2rem;
  text-align: center;
}
.hero-content {
  max-width: 640px;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: 1rem;
}
.hero p {
  font-size: 1.125rem;
  margin-bottom: 1.5rem;
  opacity: 0.9;
}
.btn {
  display: inline-block;
  background: #fff;
  color: #1e3a8a;
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 0.15s ease;
}
.btn:hover {
  transform: translateY(-2px);
  text-decoration: none;
}