:root {
  --bg: #f5f7f9;
  --surface: #ffffff;
  --ink: #15202b;
  --muted: #4a5b6d;
  --line: #d8e1e8;
  --accent: #0d5f8f;
  --accent-2: #0a8f7a;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  color: var(--ink);
  background: radial-gradient(circle at top right, #dff3ee 0%, #f5f7f9 45%, #eef5fb 100%);
  font-family: "Avenir Next", "Segoe UI", "Noto Sans", sans-serif;
  line-height: 1.6;
}

a {
  color: var(--accent);
}

.container {
  width: min(980px, 92vw);
  margin: 0 auto;
}

.hero {
  padding: 56px 0 40px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(130deg, #ecf6fd 0%, #f2fcf8 100%);
}

.eyebrow {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-size: 0.82rem;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 4.8vw, 3rem);
  line-height: 1.12;
}

h2 {
  margin: 28px 0 10px;
  font-size: 1.5rem;
}

h3 {
  margin-top: 0;
}

.lead {
  margin: 14px 0 0;
  color: var(--muted);
  max-width: 68ch;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.btn {
  display: inline-block;
  border: 1px solid var(--accent);
  border-radius: 12px;
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  padding: 10px 16px;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.note {
  margin-top: 14px;
  color: var(--muted);
}

main {
  padding: 24px 0 44px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
}

details {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 12px;
  margin-bottom: 10px;
}

summary {
  cursor: pointer;
  font-weight: 600;
}

.footer {
  border-top: 1px solid var(--line);
  padding: 18px 0 34px;
  color: var(--muted);
  font-size: 0.95rem;
}

@media (max-width: 760px) {
  .grid {
    grid-template-columns: 1fr;
  }
}