/* ==========================================================================
   Component: Form
   Spec: components/form.md
   Field structure: Label / Control / Helper-Error.
   ========================================================================== */

.field {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.field__label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
}

.field__required {
    color: var(--color-error-text);
    margin-inline-start: var(--space-1);
}

.field__control {
    display: block;
    width: 100%;
    padding-block: var(--input-padding-block);
    padding-inline: var(--input-padding-inline);
    font-size: var(--font-size-base);
    font-family: var(--font-family-base);
    color: var(--color-text-primary);
    background-color: var(--input-bg);
    border: var(--border-width-md) solid var(--input-border);
    border-radius: var(--input-radius);
    transition: border-color 0.15s ease;
}

textarea.field__control {
    min-height: 140px;
    resize: vertical;
}

.field__control::placeholder {
    color: var(--color-text-muted);
}

/* Default state is the border above; explicit states follow. */

.field__control:focus-visible {
    outline: var(--focus-ring-width) var(--focus-ring-style) var(--color-focus-ring);
    outline-offset: var(--focus-ring-offset);
    border-color: var(--input-border-focus);
}

.field__control[aria-invalid="true"] {
    border-color: var(--input-border-error);
}

.field__control[aria-invalid="true"]:focus-visible {
    outline-color: var(--color-focus-ring-error);
}

.field__control:disabled {
    background-color: var(--input-bg-disabled);
    border-color: var(--input-border-disabled);
    color: var(--color-text-disabled);
    cursor: not-allowed;
}

.field__helper {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.field__error {
    display: flex;
    align-items: flex-start;
    gap: var(--space-1);
    font-size: var(--font-size-xs);
    color: var(--color-error-text);
}

.field__error:empty {
    display: none;
}

.field__error-icon {
    width: var(--icon-size-sm);
    height: var(--icon-size-sm);
    flex-shrink: 0;
    margin-top: 1px;
}

/* Select control needs an affordance icon since native appearance is reset */
.field--select {
    position: relative;
}

select.field__control {
    appearance: none;
    padding-inline-end: var(--space-8);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='M4 6l4 4 4-4' stroke='%234B5563' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-4) center;
}

.form__privacy {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    line-height: var(--line-height-relaxed);
}

.form__privacy a {
    font-size: inherit;
}

.form__actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-4);
}

.form__fieldset {
    border: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.form__legend {
    padding: 0;
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}