:root {
  --bg: #070b14;
  --surface: #0f172a;
  --text: #edf2ff;
  --muted: #9aa6bf;
  --brand: #7dd3fc;
  --brand-strong: #38bdf8;
  --card: #111a2e;
  --border: #1f2d47;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
}

a {
  color: var(--brand);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

.hero {
  background:
    radial-gradient(circle at 85% 10%, #123255 0%, transparent 45%),
    radial-gradient(circle at 10% 20%, #121f3b 0%, transparent 35%),
    var(--bg);
  border-bottom: 1px solid var(--border);
  padding-bottom: 4rem;
}

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

.brand {
  font-weight: 800;
  letter-spacing: 0.2px;
}

.menu {
  display: flex;
  gap: 1rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.menu a {
  color: #dbe9ff;
  opacity: 0.9;
}

.menu a:hover {
  opacity: 1;
}

.hero-content {
  padding: 4rem 0 1rem;
}

.eyebrow {
  color: var(--brand);
  margin: 0 0 0.5rem;
}

h1 {
  margin: 0;
  max-width: 17ch;
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-size: clamp(2rem, 5vw, 3.7rem);
}

.lead {
  color: var(--muted);
  max-width: 62ch;
  margin: 1rem 0 2rem;
  line-height: 1.6;
  font-size: 1.05rem;
}

.btn {
  display: inline-block;
  background: linear-gradient(90deg, var(--brand), var(--brand-strong));
  color: #031324;
  font-weight: 600;
  padding: 0.75rem 1.1rem;
  border-radius: 0.65rem;
  box-shadow: 0 12px 30px rgba(56, 189, 248, 0.25);
}

.btn:hover {
  text-decoration: none;
  filter: brightness(0.95);
}

.section {
  padding: 3.4rem 0;
}

.section h2 {
  margin-top: 0;
  margin-bottom: 1rem;
  font-size: clamp(1.4rem, 2.3vw, 2rem);
  letter-spacing: -0.01em;
}

.section p {
  line-height: 1.7;
  color: var(--muted);
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.1rem;
  margin-top: 1.2rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 0.95rem;
  padding: 1.15rem;
  min-height: 220px;
}

.card h3 {
  margin-top: 0;
  margin-bottom: 0.8rem;
}

.card p {
  margin: 0 0 0.8rem;
}

.tags {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.tags li {
  padding: 0.42rem 0.78rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #0a1324;
  color: #d7e4ff;
  font-size: 0.94rem;
}

.contact-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
  display: grid;
  gap: 0.65rem;
}

.contact-list li {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 0.7rem;
  padding: 0.7rem 0.85rem;
}

.footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  color: var(--muted);
}

@media (max-width: 700px) {
  .menu {
    display: none;
  }
}