/* Material Design 3 Form Components
 * ==========================================================================
 * Form inputs adapted to MD3 design principles with OKLCH colors
 * Maintains existing form structure with updated colors and checkbox/radio styles
 */

/* ===== Base Form Inputs ===== */

input[type="text"],
input[type="password"],
input[type="email"],
input[type="number"],
input[type="tel"],
input[type="url"],
input[type="search"],
input[type="time"],
input[type="date"],
input[type="datetime"],
input[type="datetime-local"],
input[type="month"],
input[type="week"],
input[type="color"],
.lexxy-editor__content,
textarea,
select {
  background-color: var(--color-bg--canvas);
  color: var(--color-ink--surface);
  border: 1px solid var(--color-border);
  padding-block: 0.75rem;
  padding-inline: 0.75rem;
  font-family: inherit;
  font-size: var(--font-size-small);
  width: 100%;
  box-sizing: border-box;
  border-radius: 4px;
}

/* ===== Input Groups ===== */
.form-input-group {
  display: flex;
  align-items: stretch;
  width: 100%;
}

.form-input-group .form-input {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
  flex: 1;
}

.form-input-suffix,
.form-input-prefix {
  display: flex;
  align-items: center;
  padding-inline: 0.75rem;
  background-color: var(--color-bg--container);
  border: 1px solid var(--color-border);
  color: var(--color-ink--surface-variant);
  font-size: var(--font-size-small);
}

.form-input-suffix {
  border-left: 0;
  border-top-right-radius: 4px;
  border-bottom-right-radius: 4px;
}

.form-input-prefix {
  border-right: 0;
  border-top-left-radius: 4px;
  border-bottom-left-radius: 4px;
}

.form-input-group .form-input-prefix + .form-input {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}

/* Outlined variant */
input.outlined,
textarea.outlined,
select.outlined {
  border-radius: 4px;
  border: 1px solid var(--color-border);
  padding: 0.75rem;
}

/* Focus states */
input:focus,
textarea:focus,
select:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Placeholder text */
input::placeholder,
textarea::placeholder {
  color: var(--color-ink--surface);
  opacity: 0.6;
}

/* ===== Checkbox Styling (MD3) ===== */

input[type="checkbox"] {
  /* Structure */
  width: 18px;
  height: 18px;
  cursor: pointer;
  appearance: none;
  position: relative;
  vertical-align: middle;
  flex-shrink: 0;

  /* Appearance */
  background: transparent;
  border: 2px solid var(--color-ink--surface);
  border-radius: 2px;
  opacity: 0.6;

  /* Transition */
  transition: all 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

input[type="checkbox"]:hover {
  opacity: 0.87;
  background: oklch(from var(--color-primary) l c h / 0.08);
}

input[type="checkbox"]:checked {
  background: var(--color-primary);
  border-color: var(--color-primary);
  opacity: 1;
}

/* Checkmark */
input[type="checkbox"]:checked::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border: solid var(--color-ink--primary);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

input[type="checkbox"]:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

input[type="checkbox"]:disabled {
  opacity: 0.38;
  cursor: not-allowed;
}

/* ===== Radio Button Styling (MD3) ===== */

input[type="radio"] {
  /* Structure */
  width: 20px;
  height: 20px;
  cursor: pointer;
  appearance: none;
  position: relative;
  vertical-align: middle;
  flex-shrink: 0;

  /* Appearance */
  background: transparent;
  border: 2px solid var(--color-ink--surface);
  border-radius: 50%;
  opacity: 0.6;

  /* Transition */
  transition: all 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

input[type="radio"]:hover {
  opacity: 0.87;
  background: oklch(from var(--color-primary) l c h / 0.08);
}

input[type="radio"]:checked {
  border-color: var(--color-primary);
  opacity: 1;
}

/* Radio dot */
input[type="radio"]:checked::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-primary);
}

input[type="radio"]:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

input[type="radio"]:disabled {
  opacity: 0.38;
  cursor: not-allowed;
}

/* ===== File Input ===== */

input[type="file"] {
  padding: 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  display: flex;
  align-items: center;
}

input[type="file"]::file-selector-button {
  background-color: var(--color-bg--container);
  color: var(--color-ink--container);
  border: none;
  padding: 0.5rem 1rem;
  margin-right: 1rem;
  border-radius: 20px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 200ms;
}

input[type="file"]::file-selector-button:hover {
  background-color: oklch(from var(--color-bg--container) calc(l * 0.95) c h);
}

/* ===== Form Layout ===== */

.form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  width: 100%;
}

.form__field,
.form__group {
  margin-bottom: 1.5rem;
  width: 100%;
}

.form__label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--color-ink--surface);
  font-size: var(--font-size-x-small);
}

.form__input,
.form__control {
  border-radius: 4px;
  border: 1px solid var(--color-border);
  color: var(--color-ink--surface);
  background: var(--color-bg--canvas);
  display: block;
  font-size: var(--font-size-small);
  line-height: 1.5;
  padding: 0.75rem;
  transition: all 200ms ease;
  width: 100%;
  box-sizing: border-box;
}

.form__input:focus,
.form__control:focus {
  border-color: var(--color-primary);
  outline: none;
  box-shadow: 0 0 0 3px oklch(from var(--color-primary) l c h / 0.12);
}

.form__textarea {
  border-radius: 4px;
  border: 1px solid var(--color-border);
  display: block;
  min-height: 100px;
  width: 100%;
  padding: 0.75rem;
  background: var(--color-bg--canvas);
  color: var(--color-ink--surface);
  box-sizing: border-box;
  font-family: inherit;
  resize: vertical;
}

.form__textarea:focus {
  border-color: var(--color-primary);
  outline: none;
  box-shadow: 0 0 0 3px oklch(from var(--color-primary) l c h / 0.12);
}

/* Supporting text */
.supporting-text,
.form__text {
  font-size: var(--font-size-x-small);
  color: var(--color-ink--surface);
  opacity: 0.7;
  display: block;
  margin-top: 0.25rem;
}

/* Form actions */
.form__actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

/* ===== Validation & Errors ===== */

.error-banner,
.error_explanation {
  background: var(--color-bg--error-container);
  padding: 1rem;
  border-radius: 8px;
  color: var(--color-ink--error-container);
  margin-bottom: 1.5rem;
  border: 1px solid var(--color-error);
}

.error_explanation ul {
  color: var(--color-ink--error-container);
  margin: 0.5rem 0 0 0;
  padding-left: 1.5rem;
}

input.validation-error,
textarea.validation-error,
select.validation-error {
  border: 1px solid var(--color-error) !important;
}

.field-error {
  color: var(--color-error);
  font-size: var(--font-size-x-small);
  margin-top: 0.25rem;
}

/* ===== Dark Theme Adjustments ===== */

[data-color-scheme="dark"] {
  input[type="checkbox"],
  input[type="radio"] {
    border-color: var(--color-ink--surface);
    opacity: 0.7;
  }

  input[type="checkbox"]:hover,
  input[type="radio"]:hover {
    background: oklch(from var(--color-primary) l c h / 0.12);
    opacity: 1;
  }

  input[type="checkbox"]:checked,
  input[type="radio"]:checked {
    opacity: 1;
  }
}

/* ===== Responsive ===== */

@media (max-width: 40em) {
  .form__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .form__actions > * {
    width: 100%;
  }
}