* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, sans-serif;
  background: radial-gradient(circle at top, #d7f6ff 0%, #eef8ff 40%, #f8fbff 100%);
  color: #0f172a;
}
main {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 24px 48px;
}
header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  margin-bottom: 32px;
}
.eyebrow {
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #0f766e;
  margin-bottom: 10px;
}
h1 {
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  line-height: 1.05;
  margin: 0;
}
p {
  color: #334155;
  line-height: 1.75;
  margin: 0 0 1rem;
}
nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}
a {
  color: #0f5f8f;
  text-decoration: none;
}
a:hover,
a:focus-visible {
  color: #0369a1;
}
.section-card {
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(15, 118, 110, 0.14);
  box-shadow: 0 18px 50px rgba(15, 23, 42, 0.08);
  border-radius: 24px;
  padding: 28px;
}
.section-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.button {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 14px;
  padding: 0.85rem 1.25rem;
  background: #0f766e;
  color: #fff;
  border-radius: 999px;
  font-weight: 700;
}
.button:hover,
.button:focus-visible {
  background: #115e59;
}
.feature-list {
  list-style: none;
  padding-left: 0;
  margin: 1rem 0 0;
}
.feature-list li {
  padding: 0.8rem 0;
  border-bottom: 1px solid rgba(15, 118, 110, 0.12);
}
.feature-list li:last-child {
  border-bottom: none;
}
footer {
  text-align: center;
  color: #475569;
  padding: 20px 24px 32px;
  font-size: 0.95rem;
}
@media (max-width: 660px) {
  header {
    flex-direction: column;
    align-items: stretch;
  }
  nav {
    justify-content: space-between;
  }
}