body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, sans-serif;
  background: #f8f9fa;
  color: #333;
  line-height: 1.6;
}

.container {
  width: 90%;
  max-width: 1100px;
  margin: auto;
  padding: 1rem 0;
}

header.hero {
  background: linear-gradient(135deg, #0d47a1, #1976d2);
  color: white;
  text-align: center;
  padding: 4rem 1rem;
}

header h1 {
  font-size: 3rem;
  margin-bottom: 0.5rem;
}

.tagline {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
}

.cta-button {
  background: #ffca28;
  color: #000;
  padding: 0.75rem 1.5rem;
  border-radius: 25px;
  text-decoration: none;
  font-weight: bold;
  transition: background 0.3s;
}

.cta-button:hover {
  background: #ffc107;
}

section {
  padding: 2.5rem 1rem;
}

h2 {
  color: #0d47a1;
  font-size: 2rem;
  margin-bottom: 1rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.card {
  background: white;
  padding: 1.5rem;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.tech-list {
  list-style: none;
  padding-left: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.5rem;
}

.tech-list li {
  background: #e3f2fd;
  padding: 0.75rem;
  border-radius: 6px;
}

footer {
  background: #e0e0e0;
  text-align: center;
  padding: 1rem 0;
  font-size: 0.9rem;
}