:root {
  --blue: #1b4f9c;
  --white: #ffffff;
  --black: #111111;
  --bg: #f4f8ff;
  --card: #ffffff;
  --border: #d4e3fb;
  --chip: #e8f1ff;
}

* { box-sizing: border-box; }

body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  margin: 0;
  line-height: 1.6;
  background: var(--bg);
  color: #0f2744;
}

header,
main,
footer {
  max-width: 980px;
  margin: auto;
  padding: 18px;
}

header {
  padding-top: 36px;
}

h1 {
  margin: 0 0 10px;
  font-size: clamp(1.9rem, 4vw, 2.3rem);
  letter-spacing: -0.3px;
}

h2,
h3 {
  margin: 0 0 10px;
}

a {
  color: #155bb0;
}

nav {
  margin: 16px 0 0;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

nav a {
  padding: 8px 12px;
  border-radius: 10px;
  background: var(--chip);
  text-decoration: none;
  border: 1px solid #cfe2ff;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
  margin: 12px 0;
  box-shadow: 0 4px 18px rgba(32, 74, 135, 0.08);
}

.grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.form-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

label {
  display: block;
  margin: 10px 0 6px;
  font-weight: 600;
}

input,
textarea,
select {
  width: 100%;
  padding: 10px;
  border-radius: 10px;
  border: 1px solid #b9d1f3;
  background: #fff;
  color: #0f2744;
}

button,
.btn {
  display: inline-block;
  padding: 12px 14px;
  border-radius: 10px;
  border: 0;
  background: var(--blue);
  color: var(--white);
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}

.btn.secondary,
button.secondary {
  background: #0f2744;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  background: #eaf2ff;
  border: 1px solid #cfe2ff;
  font-weight: 700;
}

.note,
.muted {
  opacity: 0.88;
}

.hidden {
  display: none;
}

.hr {
  height: 1px;
  background: #dbe8ff;
  margin: 14px 0;
}

.result {
  margin-top: 14px;
  padding: 14px;
  border-radius: 12px;
  background: #eff6ff;
  border: 1px solid #b7d2fb;
}

.hero {
  margin-bottom: 6px;
}

.cta-group {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 12px;
}

footer {
  padding-bottom: 28px;
}

@media (max-width: 600px) {
  header,
  main,
  footer {
    padding: 16px;
  }
}