/* ==========================================================================
   RSL Beautylizer — интерактивная визуализация (НОВА МИ)
   Версия: v1 (2026-09-27)
   Изоляция: все стили scoped под .rsl-viz, переменные --rsl-viz-*.
   Дизайн-токены наследуются от nvm-design-system с fallback-значениями.
   ========================================================================== */

.rsl-viz {
  --rsl-viz-bg: #f8fafc;
  --rsl-viz-surface: #ffffff;
  --rsl-viz-ink: #0f172a;
  --rsl-viz-text: #334155;
  --rsl-viz-muted: #64748b;
  --rsl-viz-coral: var(--c-primary, #bc5850);
  --rsl-viz-coral-hover: var(--c-primary-hover, #a6463f);
  --rsl-viz-mint: var(--c-teal, #1a7f74);
  --rsl-viz-mint-soft: #eef7f5;
  --rsl-viz-line: #e2e8f0;
  --rsl-viz-radius-sm: 12px;
  --rsl-viz-radius-md: var(--nvm-radius-control, 14px);
  --rsl-viz-radius-lg: 24px;
  --rsl-viz-radius-card: var(--nvm-radius-card, 20px);
  --rsl-viz-shadow: var(--nvm-shadow-card, 0 8px 30px rgba(15, 23, 42, 0.06));
  --rsl-viz-speed: 0.35s;

  box-sizing: border-box;
  width: 100%;
  padding: clamp(40px, 5vw, 56px) 0;
}

.rsl-viz *,
.rsl-viz *::before,
.rsl-viz *::after { box-sizing: border-box; }

.rsl-viz__container {
  width: 100%;
  max-width: var(--nvm-container, 1240px);
  margin: 0 auto;
  padding: 0 var(--nvm-gutter-mobile, 16px);
}

@media (min-width: 1024px) {
  .rsl-viz__container { padding: 0 var(--nvm-gutter-desktop, 24px); }
}

/* ---------- Шапка секции ---------- */

.rsl-viz__head {
  position: relative;
  overflow: hidden;
  margin: 0 0 clamp(20px, 3vw, 28px);
  padding: clamp(20px, 3vw, 26px) clamp(18px, 3vw, 28px);
  background: var(--rsl-viz-surface);
  border: 1px solid var(--rsl-viz-line);
  border-radius: var(--rsl-viz-radius-lg);
  box-shadow: var(--rsl-viz-shadow);
  text-align: center;
}

.rsl-viz__head::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--rsl-viz-coral);
}

.rsl-viz__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 12px;
  padding: 6px 14px;
  border: 1px solid #d8e2e0;
  border-radius: 999px;
  color: #5b6b68;
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.rsl-viz__eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--rsl-viz-coral);
}

.rsl-viz__title {
  margin: 0;
  color: var(--rsl-viz-ink);
  font-size: clamp(20px, 4.4vw, 30px);
  font-weight: 800;
  line-height: 1.25;
}

.rsl-viz__lead {
  margin: 10px auto 0;
  max-width: 720px;
  color: var(--rsl-viz-text);
  font-size: clamp(14px, 3vw, 16px);
  line-height: 1.6;
}

/* ---------- Раскладка ---------- */

.rsl-viz__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 2.5vw, 40px);
  align-items: start;
}

@media (min-width: 1100px) {
  .rsl-viz__layout {
    grid-template-columns: minmax(0, 1.62fr) minmax(320px, 0.88fr);
    align-items: stretch;
  }

  /* Панель — прямоугольный блок в высоту левой колонки:
     статус на уровне верха сцены, кнопки прижаты к нижней грани */
  .rsl-viz__panel {
    height: 100%;
    padding-top: 28px;
  }

  .rsl-viz__controls { margin-top: auto; }
}

/* ---------- Сцена ---------- */

.rsl-viz__scene-col { min-width: 0; }

.rsl-viz__scene-caption {
  margin: 0 0 10px;
  text-align: center;
  color: #8a7a72;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.rsl-viz__scene-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #fdf9f4;
  border: 1px solid var(--rsl-viz-line);
  border-radius: var(--rsl-viz-radius-lg);
  box-shadow: var(--rsl-viz-shadow);
  touch-action: pan-y;
}

.rsl-viz__scene {
  display: block;
  width: 100%;
  height: 100%;
  max-inline-size: 100%;
}

/* Подсказка интерактивности */
.rsl-viz__help {
  position: absolute;
  z-index: 3;
  left: 50%;
  top: 12%;
  transform: translateX(-50%);
  padding: 10px 18px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--rsl-viz-line);
  border-radius: 999px;
  box-shadow: var(--rsl-viz-shadow);
  text-align: center;
  pointer-events: none;
}

.rsl-viz__help-title {
  margin: 0;
  font-size: 13px;
  font-weight: 800;
  color: var(--rsl-viz-ink);
}

.rsl-viz__help-text {
  margin: 2px 0 0;
  font-size: 11px;
  color: var(--rsl-viz-muted);
}

@keyframes rslVizHelpNudge {
  0%, 100% { transform: translateX(-50%); }
  50% { transform: translateX(calc(-50% + 14px)); }
}

@media (prefers-reduced-motion: no-preference) {
  .rsl-viz__help { animation: rslVizHelpNudge 2.2s ease-in-out infinite; }
}

.rsl-viz__help-cue { transition: opacity 0.4s ease; }

/* Сравнение с вакуумом */
.rsl-viz__compare[hidden],
.rsl-viz__help[hidden] { display: none; }

.rsl-viz__compare {
  position: absolute;
  inset: 0;
  z-index: 4;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(12px, 2.5vw, 20px);
  background: #fdf9f4;
  overflow: auto;
}

.rsl-viz__compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  flex: 1 1 auto;
  min-height: 0;
  align-content: center;
}

.rsl-viz__compare-cell {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.rsl-viz__compare-cell svg {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--rsl-viz-line);
  border-radius: var(--rsl-viz-radius-md);
}

.rsl-viz__compare-cell figcaption {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 13px;
  line-height: 1.45;
  color: var(--rsl-viz-text);
}

.rsl-viz__compare-cell figcaption strong { color: var(--rsl-viz-ink); }

.rsl-viz__compare-note {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.5;
  text-align: center;
  color: var(--rsl-viz-muted);
}

.rsl-viz__compare-close {
  align-self: center;
  min-height: 44px;
}

/* Слои эффектов: скрыты до включения */
.rsl-viz__led-field {
  opacity: 0;
  transition: opacity var(--rsl-viz-speed) ease;
}

.rsl-viz[data-effects~="led"] .rsl-viz__led-field { opacity: 1; }

.rsl-viz__deform-path { transition: opacity 0.25s ease; }

/* Микроциркуляция усиливается при виброкомпрессии */
.rsl-viz__microcirculation-paths {
  transition: opacity 0.4s ease;
}

.rsl-viz[data-effects~="compression"] .rsl-viz__microcirculation-paths { opacity: 0.7; }

.rsl-viz__connective-fibers { transition: opacity 0.4s ease; }

.rsl-viz[data-effects~="compression"] .rsl-viz__connective-fibers { opacity: 0.8; }

.rsl-viz__fluid-paths { transition: opacity 0.4s ease; }

.rsl-viz[data-effects~="fluid"] .rsl-viz__fluid-paths { opacity: 0.7; }

.rsl-viz__active-layer-outline path { transition: opacity 0.3s ease; }

/* LED-дуга и индикатор давления на манипуле */
.rsl-viz__led-window {
  transition: fill var(--rsl-viz-speed) ease;
}

.rsl-viz__pressure-dot {
  transition: fill var(--rsl-viz-speed) ease;
}

.rsl-viz[data-effects~="led"] .rsl-viz__led-window { fill: #ff7a66; }
.rsl-viz[data-effects~="compression"] .rsl-viz__pressure-dot { fill: var(--rsl-viz-coral); }

/* Манипула */
.rsl-viz__beautylizer-manipula {
  cursor: grab;
  touch-action: none;
  outline: none;
}

.rsl-viz__beautylizer-manipula:active { cursor: grabbing; }

.rsl-viz__beautylizer-manipula:focus-visible .rsl-viz__manipula-focus { opacity: 1; }

/* Подписи слоёв и техсетка — декор, на малых экранах скрыты */
.rsl-viz__layer-labels {
  paint-order: stroke;
  stroke: rgba(253, 249, 244, 0.85);
  stroke-width: 3px;
}

/* ---------- Переключатели режимов (под сценой) ---------- */

.rsl-viz__toggles {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 20px;
}

@media (min-width: 768px) {
  .rsl-viz__toggles { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

.rsl-viz__toggle {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  min-width: 0;
  min-height: 44px;
  padding: 12px 18px 12px 46px;
  background: var(--rsl-viz-surface);
  border: 2px solid var(--rsl-viz-line);
  border-radius: var(--rsl-viz-radius-md);
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.06);
  color: var(--rsl-viz-text);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: border-color 0.25s ease, background-color 0.25s ease, box-shadow 0.25s ease;
}

.rsl-viz__toggle:hover {
  background: var(--rsl-viz-mint-soft);
  border-color: var(--rsl-viz-mint);
}

.rsl-viz__toggle:focus-visible {
  outline: 3px solid rgba(188, 88, 80, 0.45);
  outline-offset: 2px;
}

.rsl-viz__toggle-icon {
  position: absolute;
  left: 12px;
  top: 12px;
  width: 22px;
  height: 22px;
  color: var(--rsl-viz-mint);
  transition: color 0.25s ease;
}

.rsl-viz__toggle-name {
  font-size: 14px;
  font-weight: 800;
  line-height: 1.2;
  color: var(--rsl-viz-ink);
  overflow-wrap: break-word;
  hyphens: auto;
}

.rsl-viz__toggle-caption {
  font-size: 12px;
  line-height: 1.35;
  color: var(--rsl-viz-muted);
  overflow-wrap: break-word;
  hyphens: auto;
}

.rsl-viz__toggle-state {
  position: absolute;
  bottom: 10px;
  left: 12px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid #cbd5e1;
  background: transparent;
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

.rsl-viz__toggle[aria-pressed="true"] {
  background: var(--rsl-viz-mint-soft);
  border-color: var(--rsl-viz-mint);
  box-shadow: 0 8px 18px rgba(26, 127, 116, 0.12);
}

.rsl-viz__toggle[aria-pressed="true"] .rsl-viz__toggle-state {
  background: var(--rsl-viz-mint);
  border-color: var(--rsl-viz-mint);
}

.rsl-viz__toggle[aria-pressed="true"] .rsl-viz__toggle-icon { color: var(--rsl-viz-coral); }

/* ---------- Мини-схема роллера ---------- */

.rsl-viz__scheme {
  margin-top: 16px;
  padding: 14px 18px;
  background: var(--rsl-viz-surface);
  border: 1px solid var(--rsl-viz-line);
  border-radius: var(--rsl-viz-radius-card);
  box-shadow: var(--rsl-viz-shadow);
  display: flex;
  align-items: center;
  gap: 16px;
}

.rsl-viz__scheme-svg {
  flex: 0 0 auto;
  width: 168px;
  height: auto;
}

.rsl-viz__scheme-caption {
  margin: 0;
  font-size: 13px;
  line-height: 1.5;
  color: var(--rsl-viz-muted);
}

.rsl-viz__scheme-caption strong { color: var(--rsl-viz-ink); }

/* ---------- Статичный fallback без JS ---------- */

.rsl-viz__static {
  margin-top: 16px;
  padding: 18px 20px;
  background: var(--rsl-viz-surface);
  border: 1px solid var(--rsl-viz-line);
  border-radius: var(--rsl-viz-radius-card);
}

.rsl-viz__static-title {
  margin: 0 0 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--rsl-viz-ink);
}

.rsl-viz__static-list {
  margin: 0;
  padding: 0 0 0 18px;
  color: var(--rsl-viz-text);
  font-size: 14px;
  line-height: 1.65;
}

.rsl-viz--enhanced .rsl-viz__static { display: none; }

.rsl-viz:not(.rsl-viz--enhanced) .rsl-viz__panel { display: none; }

/* ---------- Панель управления ---------- */

.rsl-viz__panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
}

.rsl-viz__status {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  gap: 9px;
  margin: 0;
  padding: 8px 16px;
  background: var(--rsl-viz-surface);
  border: 1px solid var(--rsl-viz-line);
  border-radius: 999px;
  box-shadow: var(--rsl-viz-shadow);
  font-size: 13px;
  font-weight: 700;
  color: var(--rsl-viz-text);
}

.rsl-viz__status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #94a3b8;
}

.rsl-viz__status[data-state="demo"] .rsl-viz__status-dot { background: var(--rsl-viz-mint); }
.rsl-viz__status[data-state="manual"] .rsl-viz__status-dot { background: var(--rsl-viz-coral); }
.rsl-viz__status[data-state="pause"] .rsl-viz__status-dot { background: #d9a13b; }
.rsl-viz__status[data-state="compare"] .rsl-viz__status-dot { background: #8a7ca8; }

/* Информационная карточка */
.rsl-viz__card {
  padding: 18px 20px;
  background: var(--rsl-viz-surface);
  border: 1px solid var(--rsl-viz-line);
  border-radius: var(--rsl-viz-radius-card);
  box-shadow: var(--rsl-viz-shadow);
}

.rsl-viz__card-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.rsl-viz__card-icon {
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  padding: 9px;
  border-radius: 11px;
  background: var(--rsl-viz-mint-soft);
  border: 1px solid var(--rsl-viz-line);
  color: var(--rsl-viz-mint);
}

.rsl-viz__card-title {
  margin: 0;
  font-size: 16px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--rsl-viz-ink);
  /* стабильная высота: без скачков при смене режима */
  min-height: 2.6em;
  display: flex;
  align-items: center;
}

.rsl-viz__card-text {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--rsl-viz-text);
  /* 4 строки — покрывает самый длинный текст карточки */
  min-height: 6.4em;
}

@media (min-width: 768px) and (max-width: 1099px) {
  .rsl-viz__card-title { min-height: 0; }
}

@media (max-width: 767px) {
  .rsl-viz__card-title { min-height: 0; }
  /* на узких экранах самый длинный текст занимает 5 строк */
  .rsl-viz__card-text { min-height: 8em; }
}

.rsl-viz__card-visible {
  margin: 0 0 14px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--rsl-viz-muted);
}

.rsl-viz__card-visible-label { font-weight: 700; color: var(--rsl-viz-text); }

.rsl-viz__depth {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--rsl-viz-line);
}

.rsl-viz__depth-bars {
  display: inline-flex;
  align-items: flex-end;
  gap: 4px;
  height: 28px;
}

.rsl-viz__depth-bar {
  width: 8px;
  border-radius: 3px;
  background: #e2e8f0;
  transition: background-color 0.3s ease, opacity 0.3s ease;
}

.rsl-viz__depth-bar[data-rsl-viz-depth-bar="epidermis"] { height: 9px; }
.rsl-viz__depth-bar[data-rsl-viz-depth-bar="dermis"] { height: 18px; }
.rsl-viz__depth-bar[data-rsl-viz-depth-bar="hypodermis"] { height: 27px; }

.rsl-viz__depth-bar.is-active { background: var(--rsl-viz-coral); }
.rsl-viz__depth-bar.is-partial { background: #eec2bc; }

.rsl-viz__depth-label {
  font-size: 12.5px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--rsl-viz-muted);
}

/* Интенсивность */
.rsl-viz__intensity {
  padding: 16px 20px;
  background: var(--rsl-viz-surface);
  border: 1px solid var(--rsl-viz-line);
  border-radius: var(--rsl-viz-radius-card);
  box-shadow: var(--rsl-viz-shadow);
}

.rsl-viz__intensity-label { display: block; }

.rsl-viz__intensity-name {
  display: block;
  margin-bottom: 10px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--rsl-viz-ink);
}

.rsl-viz__range {
  -webkit-appearance: none;
  appearance: none;
  display: block;
  width: 100%;
  height: 8px;
  margin: 0;
  border-radius: 999px;
  background: linear-gradient(to right, var(--rsl-viz-mint) 0%, var(--rsl-viz-mint) var(--rsl-viz-fill, 50%), #e2e8f0 var(--rsl-viz-fill, 50%), #e2e8f0 100%);
  cursor: pointer;
}

.rsl-viz__range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #ffffff;
  border: 3px solid var(--rsl-viz-coral);
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.18);
  cursor: grab;
}

.rsl-viz__range::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #ffffff;
  border: 3px solid var(--rsl-viz-coral);
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.18);
  cursor: grab;
}

.rsl-viz__range::-moz-range-track {
  height: 8px;
  border-radius: 999px;
  background: #e2e8f0;
}

.rsl-viz__range::-moz-range-progress {
  height: 8px;
  border-radius: 999px;
  background: var(--rsl-viz-mint);
}

.rsl-viz__range:focus-visible {
  outline: 3px solid rgba(188, 88, 80, 0.45);
  outline-offset: 4px;
}

.rsl-viz__intensity-value {
  margin: 10px 0 0;
  font-size: 13.5px;
  font-weight: 800;
  color: var(--rsl-viz-mint);
}

.rsl-viz__intensity-note {
  margin: 6px 0 0;
  font-size: 12px;
  line-height: 1.5;
  color: var(--rsl-viz-muted);
}

/* Кнопки управления */
.rsl-viz__controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.rsl-viz__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 12px 16px;
  border-radius: var(--rsl-viz-radius-md);
  font: inherit;
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
  transition: background-color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease, transform 0.15s ease;
}

.rsl-viz__btn:active { transform: translateY(1px); }

.rsl-viz__btn:focus-visible {
  outline: 3px solid rgba(188, 88, 80, 0.45);
  outline-offset: 2px;
}

.rsl-viz__btn--primary {
  background: var(--rsl-viz-coral);
  border: 2px solid var(--rsl-viz-coral);
  color: #ffffff;
  box-shadow: 0 8px 18px rgba(188, 88, 80, 0.25);
}

.rsl-viz__btn--primary:hover {
  background: var(--rsl-viz-coral-hover);
  border-color: var(--rsl-viz-coral-hover);
}

.rsl-viz__btn--ghost {
  background: var(--rsl-viz-surface);
  border: 2px solid var(--rsl-viz-line);
  color: var(--rsl-viz-text);
}

.rsl-viz__btn--ghost:hover {
  border-color: var(--rsl-viz-mint);
  color: var(--rsl-viz-mint);
}

.rsl-viz__btn-icon {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
}

.rsl-viz__btn-icon--play { display: none; }
.rsl-viz__btn[data-playing="false"] .rsl-viz__btn-icon--play { display: block; }
.rsl-viz__btn[data-playing="false"] .rsl-viz__btn-icon--pause { display: none; }

/* Переключатель сравнения с вакуумом — компактный, второстепенный */
.rsl-viz__compare-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 8px 14px;
  background: transparent;
  border: 1px dashed var(--rsl-viz-line);
  border-radius: var(--rsl-viz-radius-md);
  color: var(--rsl-viz-muted);
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: border-color 0.25s ease, color 0.25s ease, background-color 0.25s ease;
}

.rsl-viz__compare-toggle:hover {
  border-color: var(--rsl-viz-coral);
  color: var(--rsl-viz-coral);
}

.rsl-viz__compare-toggle:focus-visible {
  outline: 3px solid rgba(188, 88, 80, 0.45);
  outline-offset: 2px;
}

.rsl-viz__compare-toggle[aria-pressed="true"] {
  border-style: solid;
  border-color: var(--rsl-viz-coral);
  color: var(--rsl-viz-coral);
  background: #fdf3f1;
}

/* CTA */
.rsl-viz__cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 14px 20px;
  border-radius: var(--rsl-viz-radius-md);
  background: var(--rsl-viz-coral);
  box-shadow: 0 10px 22px rgba(188, 88, 80, 0.28);
  color: #ffffff;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: background-color 0.25s ease, box-shadow 0.25s ease, transform 0.15s ease;
}

.rsl-viz__cta:hover {
  background: var(--rsl-viz-coral-hover);
  box-shadow: 0 12px 26px rgba(166, 70, 63, 0.32);
}

.rsl-viz__cta:active { transform: translateY(1px); }

.rsl-viz__cta:focus-visible {
  outline: 3px solid rgba(188, 88, 80, 0.45);
  outline-offset: 2px;
}

.rsl-viz__cta-icon {
  width: 19px;
  height: 19px;
  flex: 0 0 auto;
}

/* Примечание */
.rsl-viz__note {
  margin: 24px 0 0;
  font-size: 13px;
  line-height: 1.55;
  text-align: center;
  color: var(--rsl-viz-muted);
}

/* Скрытый для глаз текст (screen reader) */
.rsl-viz__sr {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- Tablet 768–1099 ---------- */

@media (min-width: 768px) and (max-width: 1099px) {
  .rsl-viz__panel {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

  .rsl-viz__status { grid-column: 1 / -1; }
  .rsl-viz__card { grid-row: span 2; }
  .rsl-viz__controls { grid-column: 1 / -1; }
  .rsl-viz__compare-toggle { grid-column: 1 / -1; }
  .rsl-viz__cta { grid-column: 1 / -1; }
}

/* ---------- Mobile до 767 ---------- */

@media (max-width: 767px) {
  .rsl-viz__layout { gap: 16px; }

  .rsl-viz__head { margin-bottom: 16px; }

  .rsl-viz__scene-caption { margin-bottom: 8px; font-size: 11px; }

  /* Сцена квадратная 1:1 (только при активном JS) */
  .rsl-viz--enhanced .rsl-viz__scene-frame {
    aspect-ratio: 1 / 1;
    border-radius: var(--rsl-viz-radius-card);
  }

  /* Слои ткани сжаты по вертикали (~×0.55) вокруг линии поверхности */
  .rsl-viz--enhanced .rsl-viz__squash {
    transform: scaleY(0.55);
    transform-origin: 0 240px;
    transform-box: view-box;
  }

  /* Декор и второстепенное скрываем на малых экранах */
  .rsl-viz__layer-labels,
  .rsl-viz__scene-grid { display: none; }
  .rsl-viz__bg-decor { opacity: 0.5; }
  .rsl-viz__status { display: none; }

  .rsl-viz__toggles {
    gap: 10px;
    margin-top: 14px;
  }

  .rsl-viz__toggle {
    min-height: 44px;
    padding: 10px 14px 10px 38px;
  }

  .rsl-viz__toggle-icon {
    left: 9px;
    top: 11px;
    width: 19px;
    height: 19px;
  }

  .rsl-viz__toggle-caption { font-size: 11px; }

  .rsl-viz__toggle-name { font-size: 12.5px; }

  .rsl-viz__scheme {
    padding: 12px 14px;
    gap: 12px;
  }

  .rsl-viz__scheme-svg { width: 128px; }

  /* Сравнение на мобильном — вертикально */
  .rsl-viz__compare-grid { grid-template-columns: 1fr; }

  .rsl-viz__compare-cell figcaption { font-size: 12px; }

  /* Основные кнопки на телефоне — одна колонка, текст в одну строку */
  .rsl-viz__controls { grid-template-columns: 1fr; }

  .rsl-viz__btn {
    min-height: 48px;
    white-space: nowrap;
  }

  .rsl-viz__cta { min-height: 52px; }
}

/* ---------- Landscape mobile: не растим сцену ---------- */

@media (max-height: 480px) and (orientation: landscape) {
  .rsl-viz__scene-frame { max-height: 72vh; }
  .rsl-viz--enhanced .rsl-viz__scene-frame { aspect-ratio: 16 / 10; }
}

/* ---------- Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  .rsl-viz *,
  .rsl-viz *::before,
  .rsl-viz *::after {
    transition-duration: 0.1s !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .rsl-viz__bg-decor { transform: none !important; }
  .rsl-viz__help { animation: none !important; }
}