body {
  font-family: system-ui, sans-serif;
  background: #f5f5f5;
  padding: 2rem;
}

h1 {
  margin-bottom: 1.5rem;
}

/* Status grid */
#status-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.5rem;
  padding: 2rem;
}

.status-card {
  border: 3px solid #ddd;
  border-radius: 14px;
  padding: 1rem;
  background: #fff;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.status-card:hover {
  transform: scale(1.03);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.status-card.active {
  border-color: #007aff;
  box-shadow: 0 0 0 4px rgba(0, 122, 255, 0.25);
}

.status-card img {
  width: 100%;
  height: auto;
  display: block;
}

/* PIN screen */
#pin-screen {
  max-width: 400px;
  margin: 5rem auto;
  text-align: center;
  padding: 2rem;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

#pin-input {
  width: 80%;
  font-size: 1.5rem;
  padding: 0.5rem;
  margin: 1rem 0;
  text-align: center;
}

#unlock-btn {
  padding: 0.5rem 1rem;
  font-size: 1rem;
  cursor: pointer;
}

#pin-error {
  color: red;
  margin-top: 1rem;
}