/* Transitions and interactions */
.btn,
#generate-btn {
  transition: background-color 0.15s ease, opacity 0.15s ease;
}

.btn:hover,
#generate-btn:hover {
  opacity: 0.9;
}

.btn:active,
#generate-btn:active {
  opacity: 0.8;
}

.btn:disabled,
#generate-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.checkbox-label input[type="checkbox"]:hover {
  border-color: rgba(255, 255, 255, 0.24);
}

.checkbox-label input[type="checkbox"]:focus {
  outline: 2px solid rgba(154, 160, 166, 0.25);
  outline-offset: 2px;
}

.checkbox-label input[type="checkbox"]::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 1px;
  width: 6px;
  height: 10px;
  border: solid transparent;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg) scale(0);
  opacity: 0;
  transition: transform 0.12s ease, opacity 0.12s ease;
  border-color: var(--card);
}

.checkbox-label input[type="checkbox"]:checked::after {
  transform: rotate(45deg) scale(1);
  opacity: 1;
}

#location-helper,
#theme-helper,
#rule-helper {
  font-size: 0.8rem;
  color: var(--muted);
  visibility: hidden;
  opacity: 0;
  height: 0;
  overflow: hidden;
  margin: 0;
  padding: 0;
  transition: opacity 0.2s ease;
  animation: fadeIn 0.2s ease-in;
  position: relative;
  z-index: -1;
}

#location-helper.visible,
#theme-helper.visible,
#rule-helper.visible {
  visibility: visible;
  opacity: 1;
  height: auto;
  overflow: visible;
  margin: revert;
  padding: revert;
  z-index: 1;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* Utility styles */
html,
body {
  overscroll-behavior-y: contain;
  background-attachment: fixed;
  -webkit-tap-highlight-color: transparent;
  background-color: var(--page-bg);
}

/* Print styles */
@media print {
  .controls,
  .btn,
  #generate-btn {
    display: none;
  }

  .card {
    box-shadow: none;
    border: 1px solid #ccc;
  }
}