:root {
  --bg: #f3f6fb;
  --surface: #ffffff;
  --surface-soft: #f8faff;
  --text: #1c2333;
  --muted: #5c6780;
  --primary: #1f5eff;
  --primary-dark: #1949c3;
  --border: #d9e2f2;
  --shadow: 0 10px 24px rgba(21, 35, 66, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", "Inter", Arial, Helvetica, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.5;
}

.container {
  width: min(1000px, 92%);
  margin: 0 auto;
}

header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 0;
}

.brand {
  font-weight: 700;
  text-decoration: none;
  color: var(--text);
  letter-spacing: 0.01em;
}

nav ul {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 1rem;
  flex-wrap: wrap;
}

nav a {
  color: var(--text);
  text-decoration: none;
  padding: 0.45rem 0.65rem;
  border-radius: 7px;
  border: 1px solid transparent;
  transition: background-color 0.15s ease, color 0.15s ease;
}

nav a:hover,
nav a.active {
  background: #eaf0ff;
  color: var(--primary-dark);
}

main {
  padding: 2rem 0 3rem;
}

.hero {
  background: linear-gradient(145deg, #214cb9, #2f6cff);
  color: #ffffff;
  border-radius: 12px;
  padding: 2.1rem;
  border: 1px solid #2c60de;
  box-shadow: var(--shadow);
}

.hero h1 {
  margin-top: 0;
  font-size: clamp(1.8rem, 5vw, 2.65rem);
  line-height: 1.15;
}

.hero p {
  max-width: 68ch;
}

.btn {
  display: inline-block;
  background: var(--primary);
  color: #ffffff;
  text-decoration: none;
  font-weight: 700;
  border-radius: 8px;
  padding: 0.7rem 1rem;
  border: 1px solid var(--primary-dark);
  transition: background-color 0.15s ease;
}

.btn:hover {
  background: var(--primary-dark);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-top: 1.25rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.1rem;
  box-shadow: var(--shadow);
}

.card h3 {
  margin-top: 0;
}

.muted {
  color: var(--muted);
}

.info-block {
  margin-top: 1.6rem;
  background: var(--surface-soft);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.15rem;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.pill {
  font-size: 0.85rem;
  color: #294374;
  border: 1px solid #bfd2f7;
  background: #eaf1ff;
  border-radius: 999px;
  padding: 0.3rem 0.65rem;
}

footer {
  border-top: 1px solid var(--border);
  padding: 1.25rem 0;
  background: var(--surface);
}

h1,
h2,
h3 {
  letter-spacing: 0.01em;
}