body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: #0f172a;
  color: #e2e8f0;
}

.hero {
  background: radial-gradient(circle at top left, #1e3a8a, #0f172a 80%);
  padding: 4rem 2rem;
  text-align: center;
  color: #ffffff;
}
.hero-content h1 {
  font-size: 2.8rem;
  margin-bottom: 1rem;
}
.hero-content p {
  font-size: 1.2rem;
  max-width: 600px;
  margin: 0 auto 2rem;
}
.hero-content button {
  background-color: #3b82f6;
  color: white;
  font-size: 1rem;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}
.hero-content button:hover {
  background-color: #2563eb;
}

.main-container {
  max-width: 900px;
  margin: 2rem auto;
  padding: 1rem;
}

.role-section h2 {
  text-align: center;
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
}

.role-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

button {
  background: #1e293b;
  color: #f1f5f9;
  padding: 1rem;
  border: none;
  border-radius: 10px;
  font-size: 1rem;
  cursor: pointer;
  transition: 0.3s;
}
button:hover {
  background-color: #334155;
}

.role-content {
  background: #1e293b;
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 0 10px rgba(0,0,0,0.15);
}
.role-content ul {
  margin-top: 0.5rem;
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}
footer {
  text-align: center;
  padding: 2rem;
  font-size: 0.9rem;
  color: #94a3b8;
}