body {
  font-family: Arial, sans-serif;
  background: #0a0a0f;
  color: #fff;
  margin: 0;
  padding: 20px;
}

header {
  text-align: center;
  margin-bottom: 40px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.fn-card, .supervisor-card {
  background: #111;
  padding: 20px;
  border-radius: 8px;
  border: 1px solid #333;
}

.fn-footer {
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
}

button {
  background: #4a8cff;
  border: none;
  padding: 8px 14px;
  border-radius: 4px;
  cursor: pointer;
}

button:hover {
  background: #6aa0ff;
}

.hidden {
  display: none;
}

.modal {
  position: fixed;
  top: 10%;
  left: 50%;
  transform: translateX(-50%);
  background: #111;
  padding: 20px;
  border: 1px solid #444;
  width: 80%;
  max-width: 600px;
}