body {
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
  background: #111;
  color: #eee;
  line-height: 1.6;
}

header {
  background: linear-gradient(135deg, #1f1f1f, #333);
  padding: 2rem;
  text-align: center;
}

nav ul {
  list-style: none;
  background: #222;
  display: flex;
  justify-content: center;
  padding: 0.5rem 0;
  margin: 0;
}

nav li {
  margin: 0 1rem;
}

nav a {
  color: #eee;
  text-decoration: none;
  transition: color 0.3s;
}

nav a:hover {
  color: #00ffcc;
}

section {
  padding: 2rem;
  max-width: 800px;
  margin: auto;
}

.card {
  background: #222;
  padding: 1rem;
  margin: 1rem 0;
  border-radius: 8px;
  cursor: pointer;
  transition: transform 0.3s, background 0.3s;
}

.card:hover {
  background: #333;
  transform: scale(1.02);
}

.hidden {
  display: none;
  margin-top: 0.5rem;
}

form input, form textarea {
  width: 100%;
  padding: 0.5rem;
  margin: 0.5rem 0;
  background: #333;
  border: none;
  color: #eee;
  border-radius: 4px;
}

form button {
  padding: 0.7rem 1.5rem;
  background: #00ffcc;
  border: none;
  border-radius: 4px;
  color: #111;
  font-weight: bold;
  cursor: pointer;
  transition: background 0.3s;
}

form button:hover {
  background: #00ddb3;
}

footer {
  text-align: center;
  padding: 1rem;
  background: #1a1a1a;
  font-size: 0.9rem;
}

a {
  color: lightblue;
  text-decoration: none;
}
}