/**
 * @file
 * Form controls — inputs, selects, textareas, fieldsets, labels, help & error text.
 */

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="url"],
input[type="password"],
input[type="search"],
input[type="number"],
input[type="date"],
input[type="time"],
select,
textarea {
  width: 100%;
  padding: 0.6rem 0.85rem;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--color-heading);
  background: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  appearance: none;
}

textarea {
  min-height: 8rem;
  resize: vertical;
}

input::placeholder,
textarea::placeholder {
  color: var(--color-text-faint);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: var(--focus-ring);
}

/* Native select arrow. */
select {
  padding-right: 2.25rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
}

/* Checkboxes & radios keep the accent color. */
input[type="checkbox"],
input[type="radio"] {
  width: 1.1em;
  height: 1.1em;
  accent-color: var(--color-primary);
  cursor: pointer;
}

/* Labels. */
label {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-heading);
}

.form-item label,
.js-form-item label {
  margin-bottom: var(--space-2);
}

label.option {
  font-weight: var(--weight-normal);
  color: var(--color-text);
}

/* Fieldsets — grouped fields with the same surface language as inputs.
   display:grid pulls <legend> into the padding box (not onto the border). */
fieldset {
  display: grid;
  gap: var(--space-4);
  margin: 0 0 var(--space-5);
  padding: var(--space-5);
  min-inline-size: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xs);
}

fieldset + fieldset {
  margin-top: var(--space-5);
}

fieldset legend {
  float: none;
  width: 100%;
  margin: 0;
  padding: 0 0 var(--space-3);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  line-height: var(--leading-snug);
  color: var(--color-heading);
  border-bottom: 1px solid var(--color-border);
}

fieldset .fieldset-wrapper > .description,
fieldset > .description {
  margin: 0;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* Nested fieldsets sit slightly recessed so hierarchy is visible. */
fieldset fieldset {
  margin-bottom: 0;
  padding: var(--space-4);
  background: var(--color-surface-alt);
  border-color: var(--color-border);
  box-shadow: none;
}

fieldset fieldset legend {
  padding-bottom: var(--space-2);
  font-weight: var(--weight-semibold);
  color: var(--color-text);
}

/* Composite radios/checkboxes: lighter chrome, legend as field label. */
fieldset.form-composite {
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background: var(--color-surface-alt);
  border-color: var(--color-border);
  box-shadow: none;
}

fieldset.form-composite > legend {
  width: 100%;
  padding: 0;
  border-bottom: none;
  font-weight: var(--weight-semibold);
}

/* Help / description text. */
.form-item .description,
.description {
  margin-top: var(--space-1);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* Error state. */
.form-item input.error,
.form-item textarea.error,
.form-item select.error,
input.error,
select.error,
textarea.error {
  border-color: var(--color-danger);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.18);
}

.form-item--error-message {
  margin-top: var(--space-1);
  font-size: var(--text-xs);
  color: var(--color-danger);
}

/* Actions row. */
.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-6);
}