:root {
  --bg: #f7f9fc;
  --surface: #ffffff;
  --text: #1a2533;
  --muted: #4f5f73;
  --primary: #2e6cff;
  --primary-dark: #1e54d1;
  --border: #d9e2ef;
  --shadow: 0 10px 30px rgba(25, 45, 80, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

.container {
  width: min(1040px, 92%);
  margin: 0 auto;
}

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

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 0;
}

.logo {
  text-decoration: none;
  font-weight: 700;
  color: var(--text);
}

.nav-link {
  color: var(--muted);
  text-decoration: none;
}

.hero {
  padding: 80px 0;
}

.hero-content {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: clamp(24px, 4vw, 48px);
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 0;
  color: var(--primary);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.8rem;
}

h1 {
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  line-height: 1.25;
  margin: 12px 0 10px;
}

h2 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  margin: 0 0 20px;
}

.hero-description {
  max-width: 60ch;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  flex-wrap: wrap;
}

.button {
  border: none;
  border-radius: 10px;
  padding: 10px 16px;
  font-size: 0.95rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

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

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

.button-secondary {
  background: #eaf0ff;
  color: var(--primary-dark);
}

.section {
  padding: 30px 0 70px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
}

.card h3 {
  margin-top: 0;
}

.card p {
  margin-bottom: 0;
  color: var(--muted);
}

.faq details {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
}

.faq details + details {
  margin-top: 10px;
}

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

.faq p {
  color: var(--muted);
  margin: 8px 0 0;
}

.footer {
  padding: 24px 0;
  border-top: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
}

@media (max-width: 640px) {
  .hero {
    padding-top: 48px;
  }
}