body {
  font-family: system-ui, sans-serif;
  background: #0f172a;
  color: #e5e7eb;
  padding: 30px;
}

header {
  display: flex;
  gap: 15px;
  align-items: center;
}

h2 {
  margin-top: 40px;
  color: #93c5fd;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.card {
  background: #020617;
  border: 1px solid #1e293b;
  padding: 20px;
  border-radius: 12px;
  cursor: pointer;
}

.card:hover {
  border-color: #38bdf8;
}

.locked {
  border-style: dashed;
}

.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.7);
}

.modal-box {
  background: #020617;
  max-width: 400px;
  margin: 10% auto;
  padding: 25px;
  border-radius: 12px;
}

.modal input {
  width: 100%;
  padding: 10px;
  margin: 8px 0;
}

button {
  padding: 10px;
}

.cancel {
  background: #1e293b;
}

.warning {
  color: #fca5a5;
}