/* ==============================================
   FORMS COMPONENT (LiftKit Golden Ratio System)
   ============================================== */

:is(.form-input, .modern-input, .auth-input, .form-control, .form-search-input) {
    --text-optical-line-height: var(--text-optical-sqrt-phi);

    font-size: 1rem;
    line-height: var(--text-optical-line-height);

    --input-bg: var(--bg-secondary);
    --input-text: var(--text-primary);
    --input-border: var(--bg-tertiary);
    --input-placeholder: var(--text-muted);

    --input-bg-hover: var(--bg-tertiary);
    --input-border-hover: var(--bg-tertiary);

    --input-bg-focus: var(--bg-tertiary);
    --input-border-focus: var(--bg-tertiary);

    display: block;
    width: 100%;
    box-sizing: border-box;

    background-color: var(--input-bg);
    color: var(--input-text);
    border: 1px solid var(--input-border);
    border-radius: var(--radius-standard, 8px);
    font-family: var(--font-family, var(--font-primary, sans-serif));
    -webkit-user-select: text;
    user-select: text;
    -webkit-touch-callout: default;
    transition:
        background-color var(--transition-fast, 0.2s),
        border-color var(--transition-fast, 0.2s),
        color var(--transition-fast, 0.2s),
        box-shadow var(--transition-fast, 0.2s);
}

/* ==============================================
   STATES (Hover, Focus, Placeholder, Disabled)
   ============================================== */

:is(.form-input, .modern-input, .auth-input, .form-control, .form-search-input):focus,
:is(.form-input, .modern-input, .auth-input, .form-control, .form-search-input):focus-visible {
    outline: none;
    background-color: var(--input-bg-focus);
    border-color: var(--input-border-focus);
    /* box-shadow: 0 0 0 2px var(--bg-primary), 0 0 0 4px var(--input-border-focus); */
}

:is(.form-input, .modern-input, .auth-input, .form-control, .form-search-input)::placeholder {
    color: var(--input-placeholder);
    opacity: 1;
    /* fix Firefox placeholder fading */
}

:is(.form-input, .modern-input, .auth-input, .form-control, .form-search-input):disabled {
    opacity: 0.5;
    cursor: not-allowed;
    filter: grayscale(20%);
}

/* ==============================================
   SEARCH BARS
   ============================================== */

.form-search {
    --search-icon-size: 1em;
    --search-icon-gap: calc(1em / var(--phi, 1.618034));
    --search-icon-inline-end: 1em;
    --search-icon-color: var(--text-muted);

    position: relative;
    width: 100%;
}

.form-input--search,
.form-search-input,
.spa-topbar-input {
    --input-text: var(--text-placeholder);
    --input-placeholder: var(--text-placeholder);
    --input-border: var(--border-color);
    --input-border-hover: var(--border-color);
    --input-bg-focus: var(--input-bg);
    --input-border-focus: var(--border-color);

    font-size: var(--text-sm);
}

.form-search-input {
    --search-input-pad-inline-end: calc(var(--search-icon-inline-end) + var(--search-icon-size) + var(--search-icon-gap));

    padding-right: var(--search-input-pad-inline-end);
}

.form-input--search:hover:not(:disabled):placeholder-shown,
.form-search-input:hover:not(:disabled):placeholder-shown,
.spa-topbar-input:hover:not(:disabled):placeholder-shown {
    --input-text: var(--text-muted);
    --input-placeholder: var(--text-muted);
}

.form-input--search:not(:placeholder-shown),
.form-input--search:not(:placeholder-shown):hover:not(:disabled),
.form-input--search:not(:placeholder-shown):focus,
.form-input--search:not(:placeholder-shown):focus-visible,
.form-search-input:not(:placeholder-shown),
.form-search-input:not(:placeholder-shown):hover:not(:disabled),
.form-search-input:not(:placeholder-shown):focus,
.form-search-input:not(:placeholder-shown):focus-visible,
.spa-topbar-input:not(:placeholder-shown),
.spa-topbar-input:not(:placeholder-shown):hover:not(:disabled),
.spa-topbar-input:not(:placeholder-shown):focus,
.spa-topbar-input:not(:placeholder-shown):focus-visible {
    --input-text: var(--text-primary);
    --input-placeholder: var(--text-placeholder);
}

.form-search-icon {
    position: absolute;
    top: 50%;
    right: var(--search-icon-inline-end);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: var(--search-icon-size);
    height: var(--search-icon-size);
    color: var(--search-icon-color);
    transform: translateY(-50%);
    pointer-events: none;
}

.form-search-icon svg {
    display: block;
    width: 100%;
    height: 100%;
}

/* ==============================================
   INLINE FORMS
   ============================================== */

.form-inline-host {
    align-items: flex-start;
}

.form-inline-editor {--inline-form-field-width: 136px;
    flex: 0 0 auto;
    min-width: 0;
    max-width: min(100%, 32rem)}

.form-inline-shell {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    min-width: 0;
    max-width: 100%;
}

.form-inline-input {
    width: min(100%, var(--inline-form-field-width));
    min-width: 136px;
    flex: 0 1 auto;
}

.form-inline-action {
    appearance: none;
    -webkit-appearance: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 100%;
    border: 0;
    padding: 0;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    font: inherit;
    font-size: var(--text-sm);
    line-height: var(--line-height-tight);
    transition: color var(--transition-fast);
    white-space: nowrap;
}

.form-inline-action:hover:not(:disabled),
.form-inline-action:focus-visible {
    color: var(--text-primary);
    outline: none;
}

.form-inline-action--active {
    color: var(--text-primary);
}

.form-inline-action:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.form-inline-action--icon {
    width: 1rem;
    min-width: 1rem;
    padding-right: calc(var(--space-xs) / 2);
}

.form-inline-action__icon {
    display: block;
    width: 1rem;
    height: 1rem;
    filter: invert(1);
}

.form-inline-sizer {
    position: absolute;
    visibility: hidden;
    white-space: pre;
    pointer-events: none;
    font-family: var(--font-family, var(--font-primary, sans-serif));
    font-size: var(--text-sm);
    line-height: var(--text-optical-sqrt-phi, var(--line-height-tight));
}

.form-inline-editor__error {
    max-width: 100%;
    padding-left: var(--space-sm);
    color: var(--status-error-fg);
    font-size: var(--text-sm);
    line-height: var(--line-height-tight);
}

/* ==============================================
   FORM SURFACES
   ============================================== */

.form-surface-group {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-standard);
    background-color: var(--bg-secondary);
}

.form-surface-item {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    width: 100%;
    min-width: 0;
    padding: var(--space-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-standard);
    background-color: var(--form-surface-item-bg, var(--bg-secondary));
    color: var(--text-primary);
    transition:
        background-color var(--transition-fast),
        border-color var(--transition-fast),
        color var(--transition-fast);
    font-size: var(--text-base);
}

.form-surface-item:focus-within {
    --form-surface-item-bg: var(--bg-tertiary);
    background-color: var(--form-surface-item-bg, var(--bg-secondary));
}

.form-surface-group>.form-surface-item {
    --form-surface-item-bg: var(--bg-tertiary);
    border: 0;
    border-radius: 0;
    background-color: transparent;
}

.form-surface-group>.form-surface-item+.form-surface-item {
    border-top: 1px solid var(--border-color);
}

.form-surface-item--interactive {
    cursor: pointer;
}

.form-surface-item--selector {
    position: relative;
}

button.form-surface-item {
    font: inherit;
    text-align: left;
}

button.form-surface-item,
.form-surface-item__button {
    appearance: none;
    -webkit-appearance: none;
    width: 100%;
    border-color: var(--border-color);
}

button.form-surface-item:hover,
button.form-surface-item:focus-visible,
.form-surface-item--interactive:hover,
.form-surface-item--interactive:focus-visible {
    --form-surface-item-bg: var(--bg-tertiary);
    outline: none;
    background-color: var(--form-surface-item-bg, var(--bg-secondary));
    border-color: var(--border-color);
}

.form-surface-item__control,
.form-surface-item__stack {
    flex: 1 1 auto;
    min-width: 0;
}

.form-surface-item__stack {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.form-surface-item__stack--right {
    align-items: flex-end;
    text-align: right;
}

.form-surface-item__eyebrow {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 1.5em;
    color: var(--text-muted);
    font-size: var(--text-xs);
    font-weight: var(--font-weight-regular);
    line-height: var(--line-height-tight);
    text-align: center;
    white-space: nowrap;
}

.form-surface-item__meta {
    position: absolute;
    top: 50%;
    right: var(--space-md);
    z-index: var(--z-base);
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    max-width: calc(100% - (var(--space-md) * 2));
    padding-left: var(--space-sm);
    transform: translateY(-50%);
    pointer-events: none;
}

.form-surface-item__value {
    color: var(--text-primary);
    font-size: var(--text-base);
    line-height: var(--line-height-tight);
    width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.form-surface-item__value--muted {
    color: var(--text-muted);
}

.form-surface-item__value--email {
    direction: ltr;
    text-align: left;
    unicode-bidi: plaintext;
}

:is(.form-input, .modern-input, .auth-input, .form-control, .form-search-input).form-surface-input {
    --input-bg: transparent;
    --input-bg-hover: transparent;
    --input-bg-focus: transparent;
    --input-border: transparent;
    --input-border-hover: transparent;
    --input-border-focus: transparent;

    flex: 1 1 auto;
    min-width: 0;
    padding: 0;
    border: 0;
    border-radius: 0;
    font-size: var(--text-base);
}

:is(.form-input, .modern-input, .auth-input, .form-control, .form-search-input).form-surface-input:hover:not(:disabled),
:is(.form-input, .modern-input, .auth-input, .form-control, .form-search-input).form-surface-input:focus,
:is(.form-input, .modern-input, .auth-input, .form-control, .form-search-input).form-surface-input:focus-visible {
    border-color: transparent;
}

.form-surface-input--right {
    direction: rtl;
    text-align: right;
}

.form-surface-input--right::placeholder {
    text-align: right;
}

.form-surface-input--search.form-input--search,
.form-surface-input--search.form-search-input {
    padding-right: 0;
}

.form-field-stack {width: 100%;
    min-width: 0}

.form-input-shell {
    --form-input-shell-action-size: calc(var(--text-base) + var(--space-md));
    --form-input-shell-action-offset: var(--space-md);
    --form-input-shell-action-gap: var(--space-sm);

    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
    min-width: 0;
}

.form-input-shell> :is(.form-input, .modern-input, .auth-input, .form-control, .form-search-input) {
    width: 100%;
}

.form-input-shell:has(.form-input-shell__action)> :is(.form-input, .modern-input, .auth-input, .form-control, .form-search-input) {
    padding-right: calc(var(--form-input-shell-action-offset) + var(--form-input-shell-action-size) + var(--form-input-shell-action-gap));
}

.form-input-shell__action {
    position: absolute;
    top: 50%;
    right: var(--form-input-shell-action-offset);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: var(--form-input-shell-action-size);
    min-width: var(--form-input-shell-action-size);
    height: var(--form-input-shell-action-size);
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    transform: translateY(-50%);
    transition: color var(--transition-fast), opacity var(--transition-fast);
}

.form-input-shell__action:hover:not(:disabled),
.form-input-shell__action:focus-visible {
    color: var(--text-primary);
    opacity: 1;
    outline: none;
}

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

.form-input-shell__action-icon {
    width: var(--text-base);
    height: var(--text-base);
    filter: invert(1);
}

.form-help-text {
    margin: 0;
    padding-left: var(--space-sm);
    color: var(--text-muted);
    font-size: var(--text-xs);
    line-height: var(--line-height-tight);
    padding-left: var(--space-sm);
}

.form-help-text--error {
    color: var(--status-error-fg);
}

/* ==============================================
   TEXTAREA OVERRIDES
   ============================================== */

textarea:is(.form-input, .modern-input, .auth-input, .form-control, .finish-notes-textarea),
.considerations-input {
    --form-textarea-lh: var(--line-height-tight);
    --form-textarea-half-leading: calc((var(--form-textarea-lh) - 1) / 2 * 1em);
    --form-textarea-ghost-top: calc(var(--form-textarea-half-leading) + (var(--font-ascender-ratio) - var(--font-cap-ratio)) * 1em);
    --form-textarea-ghost-bottom: calc(var(--form-textarea-half-leading) + var(--font-descender-ratio) * 1em);
    --form-textarea-ghost-delta: calc(var(--form-textarea-ghost-bottom) - var(--form-textarea-ghost-top));
    --form-textarea-pad-top: calc(var(--text-optical-base-pad-v) + var(--form-textarea-ghost-delta) / 2);
    --form-textarea-pad-bottom: var(--text-optical-base-pad-v);
    --input-bg: var(--bg-secondary);
    --input-border: transparent;

    min-height: 80px;
    resize: vertical;
    line-height: var(--form-textarea-lh);

    padding-top: var(--form-textarea-pad-top);
    padding-right: var(--text-optical-pad-x);
    padding-bottom: var(--form-textarea-pad-bottom);
    padding-left: var(--text-optical-pad-x);
    border: 1px solid var(--border-color);
}

.form-field--fill {
    display: flex;
    flex: 1 1 auto;
    flex-direction: column;
    min-height: 0;
}

.form-textarea-shell {
    position: relative;
    display: flex;
    flex-direction: column;
    width: 100%;
    min-width: 0;
}

.form-textarea-shell::before,
.form-textarea-shell::after {
    display: block;
    width: 100%;
    flex: 0 0 auto;
    pointer-events: none;
}

.form-textarea-shell--optical-top::before,
.form-textarea-shell--optical-both::before {
    content: '';
    block-size: var(--form-textarea-pad-top);
}

.form-textarea-shell--optical-bottom::after,
.form-textarea-shell--optical-both::after {
    content: '';
    block-size: var(--form-textarea-pad-bottom);
}

.form-textarea-shell--fill {
    flex: 1 1 auto;
    min-height: 0;
}

.form-textarea-shell__meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
    min-width: 0;
    padding-top: var(--space-md);
}

textarea.form-input--fill,
textarea.modern-input--fill,
textarea.auth-input--fill,
textarea.form-control--fill {
    flex: 1 1 auto;
    min-height: 0;
    height: 100%;
}

:is(.form-input, .modern-input, .auth-input, .form-control, .form-search-input):is(.form-input--plain, .modern-input--plain, .auth-input--plain, .form-control--plain, .form-search-input--plain) {
    --input-bg: transparent;
    --input-bg-hover: transparent;
    --input-bg-focus: transparent;
    --input-border: transparent;
    --input-border-hover: transparent;
    --input-border-focus: transparent;

    background-color: transparent;
    border: 0;
}

:is(.form-input, .modern-input, .auth-input, .form-control, .form-search-input):is(.form-input--plain, .modern-input--plain, .auth-input--plain, .form-control--plain, .form-search-input--plain):is(:hover:not(:disabled), :focus, :focus-visible) {
    background-color: transparent;
    border-color: transparent;
    box-shadow: none;
}

:is(.form-input, .modern-input, .auth-input, .form-control, .form-search-input):is(.form-input--flush, .modern-input--flush, .auth-input--flush, .form-control--flush, .form-search-input--flush) {
    --input-bg: transparent;
    --input-bg-hover: transparent;
    --input-bg-focus: transparent;
    --input-border: transparent;
    --input-border-hover: transparent;
    --input-border-focus: transparent;

    padding: 0;
    background-color: transparent;
    border: 0;
    border-radius: 0;
}

:is(.form-input, .modern-input, .auth-input, .form-control, .form-search-input):is(.form-input--flush, .modern-input--flush, .auth-input--flush, .form-control--flush, .form-search-input--flush):is(:hover:not(:disabled), :focus, :focus-visible) {
    background-color: transparent;
    border-color: transparent;
    box-shadow: none;
}

/* ==============================================
   LAYOUT CONTAINERS
   ============================================== */

:is(.form-group, .modern-form-group) {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs, 0.5rem);
    margin-bottom: var(--space-lg);
    width: 100%;
}

/* ==============================================
   VALIDATION MODIFIERS
   ============================================== */

.form-input.is-error {
    --input-border: var(--status-error-fg);
    --input-border-focus: var(--status-error-fg);
    --input-bg-focus: var(--surface-error-bg);
}