/* textarea.css
   Consumers: site/preview/textarea.html
   Tokens: site/tokens.css (--ds-textarea-* + semantic tokens)
   States: data-attributes on .ds-textarea
   ─────────────────────────────────────────────────────────────────────────── */

/* ── Root wrapper ──────────────────────────────────────────────────────────── */

.ds-textarea {
  display:        flex;
  flex-direction: column;
  gap:            4px;
  width:          100%;
}

/* ── Size bridges ───────────────────────────────────────────────────────────── */

.ds-textarea[data-size='sm'] {
  --_ta-px:        var(--ds-input-sm-px);
  --_ta-py:        var(--ds-input-sm-py, 8px);
  --_ta-fs:        var(--ds-input-sm-fs, var(--ds-text-sm));
  --_ta-r:         var(--ds-input-sm-r);
  --_ta-label-fs:  var(--ds-input-sm-label-fs);
  --_ta-helper-fs: var(--ds-input-sm-helper-fs);
  --_ta-min-h:     var(--ds-textarea-sm-min-h);
}

.ds-textarea[data-size='md'] {
  --_ta-px:        var(--ds-input-md-px);
  --_ta-py:        var(--ds-input-md-py, 10px);
  --_ta-fs:        var(--ds-input-md-fs, var(--ds-text-base));
  --_ta-r:         var(--ds-input-md-r);
  --_ta-label-fs:  var(--ds-input-md-label-fs);
  --_ta-helper-fs: var(--ds-input-md-helper-fs);
  --_ta-min-h:     var(--ds-textarea-md-min-h);
}

.ds-textarea[data-size='lg'] {
  --_ta-px:        var(--ds-input-lg-px);
  --_ta-py:        var(--ds-input-lg-py, 12px);
  --_ta-fs:        var(--ds-input-lg-fs, var(--ds-text-lg));
  --_ta-r:         var(--ds-input-lg-r);
  --_ta-label-fs:  var(--ds-input-lg-label-fs);
  --_ta-helper-fs: var(--ds-input-lg-helper-fs);
  --_ta-min-h:     var(--ds-textarea-lg-min-h);
}

/* ── Label ──────────────────────────────────────────────────────────────────── */

.ds-textarea-label {
  font-family: inherit;
  font-weight: 500;
  color:       var(--ds-text-secondary);
  font-size:   var(--_ta-label-fs);
  line-height: 1.4;
}

/* ── Control wrapper ─────────────────────────────────────────────────────────── */

.ds-textarea-control {
  position:      relative;
  box-shadow:    inset 0 0 0 1px var(--ds-nba-border);
  border-radius: var(--_ta-r);
  background:    var(--ds-surface-0);
  transition:    box-shadow var(--ds-component-transition, 150ms ease);
  cursor:        text;
}

.ds-textarea-control:hover {
  box-shadow: inset 0 0 0 1px var(--ds-stroke-neutral-hover);
}

.ds-textarea-control:focus-within {
  box-shadow: inset 0 0 0 2px var(--ds-stroke-high);
}

/* ── Textarea field ──────────────────────────────────────────────────────────── */

.ds-textarea-field {
  display:     block;
  width:       100%;
  min-height:  var(--_ta-min-h);
  padding:     var(--_ta-py) var(--_ta-px);
  border:      none;
  outline:     none;
  background:  transparent;
  resize:      none;
  overflow-y:  auto;
  font-family: inherit;
  font-size:   var(--_ta-fs);
  line-height: 1.5;
  color:       var(--ds-text-primary);
}

.ds-textarea-field::placeholder {
  color: var(--ds-text-tertiary);
}

/* ── Grip resize handle ──────────────────────────────────────────────────────── */

.ds-textarea-grip {
  position:        absolute;
  bottom:          6px;
  right:           6px;
  color:           var(--ds-icon-secondary);
  opacity:         0.5;
  cursor:          nwse-resize;
  display:         flex;
  align-items:     center;
  justify-content: center;
  transition:      opacity 150ms;
}
.ds-textarea-grip:hover { opacity: 1; }

/* ── Caption ─────────────────────────────────────────────────────────────────── */

.ds-textarea-caption {
  font-family: inherit;
  font-size:   var(--_ta-helper-fs);
  line-height: 1.4;
  color:       var(--ds-text-tertiary);
}

.ds-textarea-caption-row {
  display:     flex;
  align-items: baseline;
  gap:         8px;
}

.ds-textarea-counter {
  margin-left: auto;
  color:       var(--ds-text-tertiary);
  font-size:   var(--_ta-helper-fs);
  line-height: 1.4;
  white-space: nowrap;
  flex-shrink: 0;
}

/* ══════════════════════════════════════════════════════════════════════════════
   VALIDATION INTENTS  (data-error / data-success / data-warning on .ds-textarea)
   ══════════════════════════════════════════════════════════════════════════ */

/* ── Error ──────────────────────────────────────────────────────────────────── */

.ds-textarea[data-error] .ds-textarea-control {
  box-shadow: inset 0 0 0 2px var(--ds-neg-default);
}
.ds-textarea[data-error] .ds-textarea-control:hover,
.ds-textarea[data-error] .ds-textarea-control:focus-within {
  box-shadow: inset 0 0 0 2px var(--ds-neg-default);
}
.ds-textarea[data-error] .ds-textarea-caption {
  color: var(--ds-neg-default);
}

/* ── Success ─────────────────────────────────────────────────────────────────── */

.ds-textarea[data-success] .ds-textarea-control {
  box-shadow: inset 0 0 0 2px var(--ds-pos-default);
}
.ds-textarea[data-success] .ds-textarea-control:hover,
.ds-textarea[data-success] .ds-textarea-control:focus-within {
  box-shadow: inset 0 0 0 2px var(--ds-pos-default);
}
.ds-textarea[data-success] .ds-textarea-caption {
  color: var(--ds-pos-default);
}

/* ── Warning ─────────────────────────────────────────────────────────────────── */

.ds-textarea[data-warning] .ds-textarea-control {
  box-shadow: inset 0 0 0 2px var(--ds-warn-default);
}
.ds-textarea[data-warning] .ds-textarea-control:hover,
.ds-textarea[data-warning] .ds-textarea-control:focus-within {
  box-shadow: inset 0 0 0 2px var(--ds-warn-default);
}
.ds-textarea[data-warning] .ds-textarea-caption {
  color: var(--ds-warn-700);
}

/* ── Disabled ────────────────────────────────────────────────────────────────── */

.ds-textarea[data-disabled] {
  pointer-events: none;
}
.ds-textarea[data-disabled] .ds-textarea-control {
  box-shadow: inset 0 0 0 1px var(--ds-nba-border-disabled);
  background: var(--ds-nba-15);
}
.ds-textarea[data-disabled] .ds-textarea-field,
.ds-textarea[data-disabled] .ds-textarea-field::placeholder,
.ds-textarea[data-disabled] .ds-textarea-label,
.ds-textarea[data-disabled] .ds-textarea-caption {
  color: var(--ds-disabled-text);
}

/* ── ReadOnly ─────────────────────────────────────────────────────────────────── */

.ds-textarea[data-readonly] {
  pointer-events: none;
}
.ds-textarea[data-readonly] .ds-textarea-control {
  box-shadow: inset 0 0 0 1px var(--ds-nba-border-disabled);
  background: var(--ds-nba-15);
}
.ds-textarea[data-readonly] .ds-textarea-field {
  color:       var(--ds-disabled-text);
  user-select: text;
  cursor:      default;
}
.ds-textarea[data-readonly] .ds-textarea-label,
.ds-textarea[data-readonly] .ds-textarea-caption {
  color: var(--ds-disabled-text);
}

/* ── Dark mode: *-500 токены для text (APCA контраст) ───────────────────────── */

[data-theme='dark'] .ds-textarea[data-error] .ds-textarea-caption   { color: var(--ds-neg-500); }
[data-theme='dark'] .ds-textarea[data-success] .ds-textarea-caption { color: var(--ds-pos-500); }

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) .ds-textarea[data-error] .ds-textarea-caption   { color: var(--ds-neg-500); }
  :root:not([data-theme='light']) .ds-textarea[data-success] .ds-textarea-caption { color: var(--ds-pos-500); }
}

/* ══════════════════════════════════════════════════════════════════════════════
   LABEL-IN VARIANT  (data-label-in on .ds-textarea)
   ══════════════════════════════════════════════════════════════════════════ */

.ds-textarea[data-label-in] .ds-textarea-control {
  border-radius: var(--ds-field-in-sm-r);
  position:      relative;
}

/* Floating label inside control */
.ds-textarea-label-float {
  position:       absolute;
  top:            var(--ds-field-in-sm-py);
  left:           var(--ds-field-in-sm-px);
  pointer-events: none;
  color:          var(--ds-text-tertiary);
  font-size:      var(--ds-field-in-sm-label-fs);
  line-height:    var(--ds-field-in-sm-label-lh);
  white-space:    nowrap;
  transition:     top 150ms ease, font-size 150ms ease, line-height 150ms ease;
}

/* LabelIn: скрыть placeholder в rest-state (label закрывает ту же зону) */
.ds-textarea[data-label-in]:not(:focus-within):not([data-filled]) .ds-textarea-field::placeholder {
  color: transparent;
}

/* LabelIn: textarea padding to clear the floating label */
.ds-textarea[data-label-in] .ds-textarea-field {
  padding-top:    calc(var(--ds-field-in-sm-label-float-lh) + var(--ds-field-in-sm-gap) + var(--ds-field-in-sm-py-filled));
  padding-bottom: var(--ds-field-in-sm-py-filled);
  padding-left:   var(--ds-field-in-sm-px);
  padding-right:  var(--ds-field-in-sm-px);
}

/* Float: focus-within (CSS-only) or data-filled (JS-set) */
.ds-textarea[data-label-in] .ds-textarea-control:focus-within .ds-textarea-label-float,
.ds-textarea[data-label-in][data-filled] .ds-textarea-label-float {
  top:         4px;
  font-size:   var(--ds-field-in-sm-label-float-fs);
  line-height: var(--ds-field-in-sm-label-float-lh);
}

/* LabelIn validation and disabled */
.ds-textarea[data-label-in][data-error]    .ds-textarea-label-float { color: var(--ds-neg-default); }
.ds-textarea[data-label-in][data-disabled] .ds-textarea-label-float { color: var(--ds-disabled-text); }

[data-theme='dark'] .ds-textarea[data-label-in][data-error] .ds-textarea-label-float { color: var(--ds-neg-500); }

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) .ds-textarea[data-label-in][data-error] .ds-textarea-label-float {
    color: var(--ds-neg-500);
  }
}

/* ── Custom scrollbar (matches ❖ Scrollbar SM / Overlay context) ──────────── */

.ds-textarea-field {
  scrollbar-width: thin;
  scrollbar-color: var(--ds-nba-30) transparent;
}
.ds-textarea-field::-webkit-scrollbar {
  width: var(--ds-scrollbar-width, 6px);
}
.ds-textarea-field::-webkit-scrollbar-track {
  background: transparent;
}
.ds-textarea-field::-webkit-scrollbar-thumb {
  background:    var(--ds-nba-30);
  border-radius: var(--ds-scrollbar-r, 999px);
}
.ds-textarea-field::-webkit-scrollbar-thumb:hover {
  background: var(--ds-nba-40);
}

/* ── React-structure parity: wrappers + sub-elements ───────────────────────────
   site preview is flat; React (TextArea.tsx) nests field-and-help > field-column
   and adds required/help-icon/caption-icon spans. These mirror TextArea.module.css. */

.ds-textarea-required {
  color:        var(--ds-neg-default);
  margin-right: 2px;
}

.ds-textarea-icon-help {
  display:     inline-flex;
  align-items: center;
  color:       var(--ds-icon-secondary);
  flex-shrink: 0;
}

.ds-textarea-field-and-help {
  display:     flex;
  align-items: flex-start;
}

.ds-textarea-field-column {
  flex:           1 1 auto;
  min-width:      0;
  display:        flex;
  flex-direction: column;
  gap:            4px;
}

.ds-textarea-icon-help-out {
  display:      flex;
  align-items:  flex-start;
  padding-top:  var(--_ta-py);
  padding-left: var(--ds-space-2, 8px);
  color:        var(--ds-icon-tertiary);
  flex-shrink:  0;
}

.ds-textarea-caption-icon {
  display:     inline-flex;
  align-items: center;
  flex-shrink: 0;
  color:       inherit;
}

/* ── Reduced motion ──────────────────────────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
  .ds-textarea-control {
    transition-duration: 0.01ms !important;
  }
}