* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
  background: #0b1020;
  color: #f5f5f5;
  line-height: 1.6;
}

header {
  background: linear-gradient(135deg, #111827, #1f2937);
  padding: 1.5rem 8%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #1f2937;
  position: sticky;
  top: 0;
  z-index: 10;
}

.logo {
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #38bdf8;
}

a:link {
  color: #d1d5db;
  background-color: transparent;
  text-decoration: none;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}

nav a {
  color: #e5e7eb;
  text-decoration: none;
  font-size: 0.95rem;
  position: relative;
  padding-bottom: 0.2rem;
}

nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: #38bdf8;
  transition: width 0.2s ease-out;
}

nav a:hover::after,
nav a.active::after {
  width: 100%;
}

.banner {
  padding: 5rem 8% 4rem;
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1.5fr);
  gap: 3rem;
  align-items: center;
}

.banner-text h1 {
  font-size: clamp(2.4rem, 4vw, 3.2rem);
  margin-bottom: 1rem;
}

.banner-text h1 span {
  color: #38bdf8;
}

.banner-text p {
  color: #9ca3af;
  max-width: 32rem;
  margin-bottom: 1.5rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  background: rgba(56, 189, 248, 0.1);
  color: #7dd3fc;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 0.8rem;
}

.cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.btn-primary,
.btn-secondary {
  border-radius: 999px;
  padding: 0.7rem 1.4rem;
  font-size: 0.9rem;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.btn-primary {
  background: #38bdf8;
  color: #020617;
  font-weight: 600;
}

.btn-primary:hover {
  background: #0ea5e9;
}

.btn-secondary {
  background: transparent;
  color: #e5e7eb;
  border-color: #4b5563;
}

.btn-secondary:hover {
  border-color: #9ca3af;
}

.banner-card {
  background: radial-gradient(circle at top left, #1d4ed8, #020617);
  border-radius: 1.2rem;
  padding: 1.8rem;
  border: 1px solid rgba(148, 163, 184, 0.3);
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.9);
}

.banner-card h2 {
  font-size: 1.1rem;
  margin-bottom: 0.8rem;
}

.banner-card p {
  font-size: 0.9rem;
  color: #e5e7eb;
  margin-bottom: 1.2rem;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.2rem;
}

.chip {
  font-size: 0.75rem;
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(148, 163, 184, 0.4);
}

.metrics {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  font-size: 0.8rem;
}

.metric strong {
  display: block;
  font-size: 1.1rem;
}

main {
  padding: 0 8% 4rem;
}

.section {
  max-width: 900px;
  margin: 0 auto;
  padding-top: 2rem;
}

.section h1,
.section h2 {
  margin-bottom: 1rem;
}

.section p {
  color: #d1d5db;
  margin-bottom: 0.8rem;
}

.section ul {
  margin-left: 1.2rem;
  margin-bottom: 1rem;
  color: #d1d5db;
}

.section li {
  margin-bottom: 0.4rem;
}

footer {
  border-top: 1px solid #1f2937;
  padding: 1.5rem 8%;
  font-size: 0.8rem;
  color: #6b7280;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

@media (max-width: 900px) {
  .banner {
    grid-template-columns: 1fr;
    padding-top: 4rem;
  }
}