/* =============================================================================
   A4 - forms, ported from HealthExpress by build/kit/port-css.py.

   Structure unchanged. Applied: 9 colour literal(s) -> on-accent, 1 rgb-channel
   tint(s) -> colour-mix, 0 hand-authored dark override(s) removed, 0 silent
   literal fallback(s) dropped, 1 black shadow(s) re-based on --ink,
   0 decorative glow(s) removed from bordered controls.

   No Bootstrap: these rules were already token-driven. Only the markup was ever
   coupled to it.
   ========================================================================== */

/* ============================================================================
   HealthExpress Theme - Form Styles
   Inputs, floating labels, validation, checkboxes, radios, switches, groups
   ============================================================================ */

/* ---------------------------------------------------------------------------
   Base Input
   --------------------------------------------------------------------------- */

.s-form-control {
  display: block;
  inline-size: 100%;
  padding-block: var(--s-input-padding-y);
  padding-inline: var(--s-input-padding-x);
  font-family: var(--s-font-family-base);
  font-size: var(--s-input-font-size);
  font-weight: var(--s-font-weight-normal);
  line-height: var(--s-input-line-height);
  color: var(--s-input-color);
  background-color: var(--s-input-bg);
  background-clip: padding-box;
  border: var(--s-border-width) solid var(--s-input-border-color);
  border-radius: var(--s-input-border-radius);
  transition: var(--s-transition-border), var(--s-transition-shadow), var(--s-transition-color);
  appearance: none;
  outline: none;
}

.s-form-control::placeholder {
  color: var(--s-input-placeholder);
  opacity: 1;
}

.s-form-control:focus {
  border-color: var(--s-input-focus-border);
  box-shadow: var(--s-input-focus-shadow);
  color: var(--s-input-color);
  background-color: var(--s-input-bg);
}

.s-form-control:disabled,
.s-form-control[readonly] {
  background-color: var(--s-input-disabled-bg);
  opacity: 1;
  cursor: not-allowed;
}

.s-form-control:disabled {
  color: var(--s-muted-color);
}

/* Focus-visible for keyboard navigation */
.s-form-control:focus-visible {
  border-color: var(--s-input-focus-border);
  box-shadow: var(--s-input-focus-shadow);
}

/* ---------------------------------------------------------------------------
   Input Sizes
   --------------------------------------------------------------------------- */

.s-form-control-sm {
  padding-block: 0.3125rem;
  padding-inline: 0.625rem;
  font-size: var(--s-font-size-sm);
  border-radius: var(--s-border-radius-sm);
}

.s-form-control-lg {
  padding-block: 0.5625rem;
  padding-inline: 1rem;
  font-size: var(--s-font-size-lg);
  border-radius: var(--s-border-radius-lg);
}

/* ---------------------------------------------------------------------------
   Textarea
   --------------------------------------------------------------------------- */

textarea.s-form-control {
  min-block-size: 5rem;
  resize: vertical;
}

/* ---------------------------------------------------------------------------
   Select
   --------------------------------------------------------------------------- */

.s-form-select {
  display: block;
  inline-size: 100%;
  padding-block: var(--s-input-padding-y);
  padding-inline-start: var(--s-input-padding-x);
  padding-inline-end: 2.25rem;
  font-family: var(--s-font-family-base);
  font-size: var(--s-input-font-size);
  font-weight: var(--s-font-weight-normal);
  line-height: var(--s-input-line-height);
  color: var(--s-input-color);
  background-color: var(--s-input-bg);
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%236f6b7d' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 0.875rem center;
  background-size: 16px 12px;
  border: var(--s-border-width) solid var(--s-input-border-color);
  border-radius: var(--s-input-border-radius);
  transition: var(--s-transition-border), var(--s-transition-shadow);
  appearance: none;
  outline: none;
}

[dir="rtl"] .s-form-select {
  background-position: left 0.875rem center;
}

.s-form-select:focus {
  border-color: var(--s-input-focus-border);
  box-shadow: var(--s-input-focus-shadow);
}

.s-form-select:disabled {
  background-color: var(--s-input-disabled-bg);
  color: var(--s-muted-color);
  cursor: not-allowed;
}

.s-form-select-sm {
  padding-block: 0.3125rem;
  padding-inline-start: 0.625rem;
  font-size: var(--s-font-size-sm);
  border-radius: var(--s-border-radius-sm);
}

.s-form-select-lg {
  padding-block: 0.5625rem;
  padding-inline-start: 1rem;
  font-size: var(--s-font-size-lg);
  border-radius: var(--s-border-radius-lg);
}

/* ---------------------------------------------------------------------------
   Label
   --------------------------------------------------------------------------- */

.s-form-label {
  display: inline-block;
  margin-block-end: 0.375rem;
  font-size: var(--s-font-size-sm);
  font-weight: var(--s-font-weight-medium);
  color: var(--s-heading-color);
}

.s-form-label-required::after {
  content: ' *';
  color: var(--s-danger);
}

/* ---------------------------------------------------------------------------
   Floating Label
   --------------------------------------------------------------------------- */

.s-form-floating {
  position: relative;
}

.s-form-floating > .s-form-control,
.s-form-floating > .s-form-select {
  padding-block-start: 1.625rem;
  padding-block-end: 0.625rem;
  block-size: calc(3.5rem + calc(var(--s-border-width) * 2));
}

.s-form-floating > label {
  position: absolute;
  inset-block-start: 0;
  inset-inline-start: 0;
  block-size: 100%;
  padding-block: 1rem;
  padding-inline: var(--s-input-padding-x);
  pointer-events: none;
  border: var(--s-border-width) solid transparent;
  transform-origin: 0 0;
  transition: opacity 0.1s ease-in-out, transform 0.1s ease-in-out;
  color: var(--s-input-placeholder);
  font-size: var(--s-input-font-size);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.s-form-floating > .s-form-control:focus ~ label,
.s-form-floating > .s-form-control:not(:placeholder-shown) ~ label,
.s-form-floating > .s-form-select ~ label {
  transform: scale(0.8) translateY(-0.5rem);
  color: var(--s-primary);
  opacity: 0.85;
}

/* ---------------------------------------------------------------------------
   Help / Hint Text
   --------------------------------------------------------------------------- */

.s-form-text {
  display: block;
  margin-block-start: 0.25rem;
  font-size: var(--s-font-size-xs);
  color: var(--s-muted-color);
}

/* ---------------------------------------------------------------------------
   Validation States
   --------------------------------------------------------------------------- */

/* Valid */
.s-form-control.is-valid,
.s-form-select.is-valid {
  border-color: var(--s-success);
}

.s-form-control.is-valid:focus,
.s-form-select.is-valid:focus {
  border-color: var(--s-success);
  box-shadow: none;
}

.s-valid-feedback {
  display: none;
  margin-block-start: 0.25rem;
  font-size: var(--s-font-size-xs);
  color: var(--s-success);
}

.is-valid ~ .s-valid-feedback {
  display: block;
}

/* Invalid */
.s-form-control.is-invalid,
.s-form-select.is-invalid {
  border-color: var(--s-danger);
}

.s-form-control.is-invalid:focus,
.s-form-select.is-invalid:focus {
  border-color: var(--s-danger);
  box-shadow: none;
}

.s-invalid-feedback {
  display: none;
  margin-block-start: 0.25rem;
  font-size: var(--s-font-size-xs);
  color: var(--s-danger);
}

.is-invalid ~ .s-invalid-feedback {
  display: block;
}

/* Validation in floating label */
.s-form-floating > .s-form-control.is-valid ~ label {
  color: var(--s-success);
}

.s-form-floating > .s-form-control.is-invalid ~ label {
  color: var(--s-danger);
}

/* ---------------------------------------------------------------------------
   Checkbox & Radio
   --------------------------------------------------------------------------- */

.s-form-check {
  display: flex;
  align-items: center;
  gap: var(--s-gap-2);
  min-block-size: 1.5rem;
  padding-inline-start: 0;
  margin-block-end: 0.125rem;
}

.s-form-check-input {
  flex-shrink: 0;
  inline-size: 1.125rem;
  block-size: 1.125rem;
  margin: 0;
  background-color: var(--s-input-bg);
  border: var(--s-border-width) solid var(--s-input-border-color);
  appearance: none;
  cursor: pointer;
  transition: var(--s-transition-bg), var(--s-transition-border), var(--s-transition-shadow);
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  outline: none;
}

.s-form-check-input[type="checkbox"] {
  border-radius: 0.25rem;
}

.s-form-check-input[type="radio"] {
  border-radius: 50%;
}

.s-form-check-input:checked {
  background-color: var(--s-primary);
  border-color: var(--s-primary);
}

.s-form-check-input[type="checkbox"]:checked {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3e%3cpath fill='none' stroke='%23fff' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' d='m6 10 3 3 6-6'/%3e%3c/svg%3e");
}

.s-form-check-input[type="radio"]:checked {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='2' fill='%23fff'/%3e%3c/svg%3e");
}

.s-form-check-input:focus-visible {
  border-color: var(--s-primary);
  box-shadow: none;
}

.s-form-check-input:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.s-form-check-input:disabled ~ .s-form-check-label {
  opacity: 0.5;
  cursor: not-allowed;
}

.s-form-check-label {
  cursor: pointer;
  color: var(--s-body-color);
  font-size: var(--s-font-size-base);
  user-select: none;
}

/* Checkbox/Radio color variants */
.s-form-check-input.is-primary:checked   { background-color: var(--s-primary);   border-color: var(--s-primary); }
.s-form-check-input.is-secondary:checked { background-color: var(--s-secondary); border-color: var(--s-secondary); }
.s-form-check-input.is-success:checked   { background-color: var(--s-success);   border-color: var(--s-success); }
.s-form-check-input.is-danger:checked    { background-color: var(--s-danger);    border-color: var(--s-danger); }
.s-form-check-input.is-warning:checked   { background-color: var(--s-warning);   border-color: var(--s-warning); }
.s-form-check-input.is-info:checked      { background-color: var(--s-info);      border-color: var(--s-info); }

/* Indeterminate checkbox */
.s-form-check-input:indeterminate {
  background-color: var(--s-primary);
  border-color: var(--s-primary);
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3e%3cpath fill='none' stroke='%23fff' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' d='M6 10h8'/%3e%3c/svg%3e");
}

/* ---------------------------------------------------------------------------
   Radio Group
   --------------------------------------------------------------------------- */

.s-radiogroup {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

/* List layout (default radio items) */
.s-radiogroup-list {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.s-radiogroup-list.s-radiogroup-inline {
  flex-direction: row;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Radio item with optional description */
.s-radiogroup-item {
  padding: 0.125rem 0;
}

.s-radiogroup-item-description {
  padding-inline-start: 1.5rem;
  font-size: 0.8125rem;
  color: var(--s-muted-color);
  margin-block-start: 0.125rem;
}

/* --- Button appearance (segmented control) --- */

.s-radiogroup-buttons {
  display: inline-flex;
  flex-wrap: wrap;
  border-radius: var(--s-border-radius);
  overflow: hidden;
  border: var(--s-border-width) solid var(--s-border-color);
}

.s-radiogroup-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding-block: 0.5rem;
  padding-inline: 1rem;
  font-size: var(--s-font-size-base);
  font-weight: var(--s-font-weight-medium);
  line-height: var(--s-line-height-base);
  color: var(--s-body-color);
  background-color: transparent;
  border-inline-end: var(--s-border-width) solid var(--s-border-color);
  cursor: pointer;
  user-select: none;
  transition: var(--s-transition-bg), var(--s-transition-color);
  white-space: nowrap;
}

.s-radiogroup-btn:last-child {
  border-inline-end: none;
}

.s-radiogroup-btn-input {
  position: absolute;
  clip: rect(0, 0, 0, 0);
  pointer-events: none;
}

.s-radiogroup-btn:hover:not(.s-radiogroup-btn-disabled):not(.s-radiogroup-btn-active) {
  background-color: var(--s-body-color-tint);
}

/* Active state - color variants */
.s-radiogroup-btn-active.s-radiogroup-btn-primary   { background-color: var(--s-primary);   color: var(--on-accent); }
.s-radiogroup-btn-active.s-radiogroup-btn-secondary { background-color: var(--s-secondary); color: var(--on-accent); }
.s-radiogroup-btn-active.s-radiogroup-btn-success   { background-color: var(--s-success);   color: var(--on-accent); }
.s-radiogroup-btn-active.s-radiogroup-btn-danger    { background-color: var(--s-danger);    color: var(--on-accent); }
.s-radiogroup-btn-active.s-radiogroup-btn-warning   { background-color: var(--s-warning);   color: var(--on-accent); }
.s-radiogroup-btn-active.s-radiogroup-btn-info      { background-color: var(--s-info);      color: var(--on-accent); }
.s-radiogroup-btn-active.s-radiogroup-btn-dark      { background-color: var(--s-dark);      color: var(--on-accent); }
.s-radiogroup-btn-active.s-radiogroup-btn-light      { background-color: var(--s-light);     color: var(--on-accent); }

/* Disabled */
.s-radiogroup-btn-disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Size variants */
.s-radiogroup-buttons-sm .s-radiogroup-btn {
  padding-block: 0.3125rem;
  padding-inline: 0.75rem;
  font-size: 0.8125rem;
}

.s-radiogroup-buttons-lg .s-radiogroup-btn {
  padding-block: 0.625rem;
  padding-inline: 1.25rem;
  font-size: 1rem;
}

/* ---------------------------------------------------------------------------
   Switch
   --------------------------------------------------------------------------- */

.s-form-switch {
  display: flex;
  align-items: center;
  gap: var(--s-gap-2);
}

.s-form-switch-input {
  flex-shrink: 0;
  inline-size: 2.5rem;
  block-size: 1.375rem;
  margin: 0;
  background-color: var(--s-input-border-color);
  border: none;
  border-radius: var(--s-border-radius-pill);
  appearance: none;
  cursor: pointer;
  transition: var(--s-transition-bg);
  position: relative;
  outline: none;
}

.s-form-switch-input::after {
  content: '';
  position: absolute;
  inset-block-start: 2px;
  inset-inline-start: 2px;
  inline-size: calc(1.375rem - 4px);
  block-size: calc(1.375rem - 4px);
  border-radius: 50%;
  background-color: var(--on-accent);
  box-shadow: 0 1px 3px color-mix(in srgb, var(--ink) 20%, transparent);
  transition: transform 0.15s ease-in-out;
}

.s-form-switch-input:checked {
  background-color: var(--s-primary);
}

.s-form-switch-input:checked::after {
  transform: translateX(calc(2.5rem - 1.375rem));
}

[dir="rtl"] .s-form-switch-input:checked::after {
  transform: translateX(calc(-2.5rem + 1.375rem));
}

.s-form-switch-input:focus-visible {
  box-shadow: none;
}

.s-form-switch-input:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.s-form-switch-label {
  cursor: pointer;
  color: var(--s-body-color);
  font-size: var(--s-font-size-base);
  user-select: none;
}

/* Switch color variants */
.s-form-switch-input.is-success:checked  { background-color: var(--s-success); }
.s-form-switch-input.is-danger:checked   { background-color: var(--s-danger); }
.s-form-switch-input.is-warning:checked  { background-color: var(--s-warning); }
.s-form-switch-input.is-info:checked     { background-color: var(--s-info); }

/* Switch sizes */
.s-form-switch-sm .s-form-switch-input {
  inline-size: 2rem;
  block-size: 1.125rem;
}

.s-form-switch-sm .s-form-switch-input::after {
  inline-size: calc(1.125rem - 4px);
  block-size: calc(1.125rem - 4px);
}

.s-form-switch-sm .s-form-switch-input:checked::after {
  transform: translateX(calc(2rem - 1.125rem));
}

.s-form-switch-lg .s-form-switch-input {
  inline-size: 3rem;
  block-size: 1.625rem;
}

.s-form-switch-lg .s-form-switch-input::after {
  inline-size: calc(1.625rem - 4px);
  block-size: calc(1.625rem - 4px);
}

.s-form-switch-lg .s-form-switch-input:checked::after {
  transform: translateX(calc(3rem - 1.625rem));
}

/* ---------------------------------------------------------------------------
   Input Group
   --------------------------------------------------------------------------- */

.s-input-group {
  position: relative;
  display: flex;
  flex-wrap: nowrap;
  align-items: stretch;
  inline-size: 100%;
}

.s-input-group > .s-form-control,
.s-input-group > .s-form-select {
  position: relative;
  flex: 1 1 auto;
  inline-size: 1%;
  min-inline-size: 0;
}

.s-input-group-text {
  display: flex;
  align-items: center;
  padding-block: var(--s-input-padding-y);
  padding-inline: var(--s-input-padding-x);
  font-size: var(--s-input-font-size);
  font-weight: var(--s-font-weight-normal);
  line-height: var(--s-input-line-height);
  color: var(--s-body-color);
  text-align: center;
  white-space: nowrap;
  background-color: var(--s-input-disabled-bg);
  border: var(--s-border-width) solid var(--s-input-border-color);
}

/* First child in group */
.s-input-group > :first-child:not(.s-input-group-text),
.s-input-group-text:first-child {
  border-start-end-radius: 0;
  border-end-end-radius: 0;
}

/* Last child in group */
.s-input-group > :last-child:not(.s-input-group-text),
.s-input-group-text:last-child {
  border-start-start-radius: 0;
  border-end-start-radius: 0;
}

/* Middle children */
.s-input-group > :not(:first-child):not(:last-child) {
  border-radius: 0;
}

.s-input-group-text:first-child {
  border-start-start-radius: var(--s-input-border-radius);
  border-end-start-radius: var(--s-input-border-radius);
  border-inline-end: 0;
}

.s-input-group-text:last-child {
  border-start-end-radius: var(--s-input-border-radius);
  border-end-end-radius: var(--s-input-border-radius);
  border-inline-start: 0;
}

.s-input-group > .s-form-control:not(:first-child):not(:last-child) {
  border-radius: 0;
}

.s-input-group > .s-form-control:first-child {
  border-start-start-radius: var(--s-input-border-radius);
  border-end-start-radius: var(--s-input-border-radius);
  border-start-end-radius: 0;
  border-end-end-radius: 0;
}

.s-input-group > .s-form-control:last-child {
  border-start-end-radius: var(--s-input-border-radius);
  border-end-end-radius: var(--s-input-border-radius);
  border-start-start-radius: 0;
  border-end-start-radius: 0;
}

/* ---------------------------------------------------------------------------
   Form Group (field wrapper)
   --------------------------------------------------------------------------- */

.s-form-group {
  margin-block-end: 1rem;
}

/* Inline form */
.s-form-inline {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: var(--s-gap-4);
}

.s-form-inline .s-form-group {
  margin-block-end: 0;
}

/* ---------------------------------------------------------------------------
   Form Row / Grid
   --------------------------------------------------------------------------- */

.s-form-row {
  display: flex;
  flex-wrap: wrap;
  margin-inline: -0.5rem;
}

.s-form-row > .s-form-group {
  padding-inline: 0.5rem;
}