body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: #f7f7f7;
  color: #222;
}

header {
  background: #111;
  color: #fff;
  padding: 30px 20px;
}

header h1 {
  margin: 0;
  font-size: 2.2rem;
}

header p {
  margin-top: 8px;
  color: #ccc;
}

nav {
  background: #1c1c1c;
  padding: 10px 20px;
}

nav a {
  color: #eee;
  margin-right: 15px;
  text-decoration: none;
}

nav a:hover {
  text-decoration: underline;
}

main {
  max-width: 1100px;
  margin: auto;
}

section {
  padding: 60px 20px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 25px;
}

.card {
  background: #fff;
  border-radius: 12px;
  padding: 25px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.08);
}

footer {
  background: #111;
  color: #bbb;
  padding: 30px 20px;
  text-align: center;
}

footer a {
  color: #bbb;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}