body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: linear-gradient(#111827, #020617);
  color: #f5f7ff;
  line-height: 1.6;
  padding-bottom: 40px;
}

.csd-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 6vw;
  background: #020617;
  border-bottom: 1px solid rgba(148,163,184,0.25);
}

.csd-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.csd-logo-img {
  width: 48px;
  height: 48px;
}

.csd-logo-text {
  display: flex;
  flex-direction: column;
}

.csd-name {
  font-size: 1.1rem;
  font-weight: 600;
}

.csd-tagline {
  font-size: 0.75rem;
  color: #a7b0c7;
}

.csd-nav {
  display: flex;
  gap: 22px;
}

.csd-nav a {
  color: #a7b0c7;
  text-decoration: none;
  font-size: 0.85rem;
}

.csd-nav a:hover {
  color: #3fb4ff;
}

.hero {
  text-align: center;
  padding: 60px 20px;
}

.cta-button {
  display: inline-block;
  background: #3fb4ff;
  color: #020617;
  padding: 12px 20px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
}

.cta-button:hover {
  background: #52c3ff;
}

.service-card {
  background: #0f172a;
  border: 1px solid #1f2937;
  padding: 15px;
  border-radius: 10px;
  margin: 15px 0;
}

footer {
  text-align: center;
  padding: 20px;
  font-size: 0.8rem;
  color: #9ca3af;
  border-top: 1px solid #1f2937;
}
.section {
  margin-bottom: 40px;
}