body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: #0f172a; /* dark navy background */
  color: #e2e8f0; /* light gray text */
}

header {
  text-align: center;
  padding: 2rem;
  background: #1e293b; /* slightly lighter dark */
  color: #f8fafc; /* near-white */
}

header h1 {
  margin: 0;
  font-size: 2.5rem;
}

header p {
  margin-top: 0.5rem;
  color: #94a3b8; /* muted gray-blue */
}

section {
  max-width: 900px;
  margin: 2rem auto;
  padding: 1rem;
}

h2 {
  color: #38bdf8; /* cyan accent */
  margin-bottom: 1rem;
}

.projects {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}

.card {
  background: #1e293b;
  padding: 1rem;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
  transition: transform 0.2s;
}

.card:hover {
  transform: translateY(-5px);
}

.card h3 {
  margin: 0 0 0.5rem 0;
  color: #f1f5f9; /* near-white */
}

.card p {
  font-size: 0.9rem;
  color: #cbd5e1; /* light muted gray */
}

footer {
  text-align: center;
  padding: 1rem;
  background: #1e293b;
  margin-top: 2rem;
  color: #94a3b8;
}

a.button {
  display: inline-block;
  margin-top: 0.5rem;
  padding: 0.5rem 1rem;
  background: #38bdf8; /* cyan */
  color: #0f172a; /* dark text */
  text-decoration: none;
  border-radius: 6px;
  font-weight: bold;
  transition: background 0.2s;
}

a.button:hover {
  background: #0ea5e9; /* darker cyan */
}