/* Фототренажёр — визуальный прототип Application Shell.
   Без интерактивности: только внешний вид по docs/11-ui-concept.md

   Страница /phototrainer: тёмное рабочее пространство в общей тёмной оболочке сайта. */

.phototrainer-page {
  --pt-page: #0f1217;
  --pt-bg: #12151a;
  --pt-bg-elevated: #161a20;
  --pt-surface: #1a1f26;
  --pt-surface-2: #20262f;
  --pt-ink: #e8eaed;
  --pt-muted: #9aa3ad;
  --pt-faint: #6b7380;
  --pt-line: #2c333c;
  --pt-line-soft: rgba(255, 255, 255, 0.06);
  --pt-accent: #4db6a5;
  --pt-accent-soft: rgba(77, 182, 165, 0.22);
  --pt-accent-strong: #6fd0bf;
  --pt-focus: #4db6a5;
  --pt-disabled: #5c6570;
  --pt-camera-metal-1: #6a727c;
  --pt-camera-metal-2: #3a424c;
  --pt-camera-metal-3: #252b32;
  --pt-screen: #0b0d10;
  --pt-mono: ui-monospace, "Cascadia Mono", "Segoe UI Mono", Menlo, Consolas, monospace;

  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  min-height: 100vh;
  min-height: 100svh;
  background: var(--pt-page);
  color: var(--pt-ink);
}

/* Шапка и подвал — общие компоненты сайта (gf-header / gf-footer).
   Их стили задаёт gofocus-site.css; здесь их не переопределяем. */

.phototrainer-page main {
  min-height: 0;
  background:
    radial-gradient(90% 60% at 18% 0%, rgba(77, 182, 165, 0.06), transparent 50%),
    linear-gradient(180deg, var(--pt-bg-elevated) 0%, var(--pt-page) 42%, var(--pt-page) 100%);
  color: var(--pt-ink);
}

.phototrainer-page .phototrainer-section {
  padding-block: 0.22rem 0.65rem;
}

.phototrainer-page .phototrainer-shell {
  /* Как .gf-container у шапки/подвала */
  width: min(var(--gf-container, 1120px), 100% - 2rem);
  margin-inline: auto;
}

.phototrainer-page .phototrainer-shell__chrome {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem 1rem;
  padding: 0.48rem 0 0.54rem;
  margin-top: 10px;
  margin-bottom: 0.5rem;
}

.phototrainer-page .phototrainer-shell__titles {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem 0.62rem;
  flex: 1 1 auto;
  min-width: 0;
}

.phototrainer-page .phototrainer-shell__titles > h1,
.phototrainer-page .phototrainer-shell__heading {
  margin: 0;
  font-family: "Manrope", sans-serif;
  font-size: clamp(1.15rem, 1.65vw, 1.36rem);
  font-weight: 680;
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--pt-ink);
}

.phototrainer-page .phototrainer-shell__switch-row {
  margin: 0.15rem 0 0;
}

.phototrainer-page .phototrainer-shell__switch-link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  margin: 0;
  padding: 0;
  border: 0;
  border-bottom: 1px solid transparent;
  background: none;
  color: var(--pt-muted);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.phototrainer-page .phototrainer-shell__switch-link:hover {
  color: var(--pt-accent-strong);
  border-bottom-color: rgba(111, 208, 191, 0.45);
}

.phototrainer-page .phototrainer-shell__workspace[hidden],
.phototrainer-page .pt-picker[hidden] {
  display: none;
}

/* ——— Выбор тренажёра ——— */

.pt-picker {
  padding: 1.35rem 0 1.75rem;
  animation: pt-picker-in 0.45s ease both;
}

.pt-picker__header {
  max-width: 36rem;
  margin-bottom: 1.35rem;
}

.pt-picker__kicker {
  margin: 0 0 0.45rem;
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--pt-accent-strong);
}

.pt-picker__title {
  margin: 0 0 0.55rem;
  font-family: "Manrope", sans-serif;
  font-size: clamp(1.55rem, 3.2vw, 2.15rem);
  font-weight: 720;
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: var(--pt-ink);
}

.pt-picker__lead {
  margin: 0;
  max-width: 32rem;
  color: var(--pt-muted);
  font-size: 1rem;
  line-height: 1.45;
}

.pt-picker__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
}

.pt-picker__card {
  position: relative;
  display: block;
  min-height: min(52vh, 22rem);
  margin: 0;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--pt-line);
  border-radius: 12px;
  background: var(--pt-surface);
  color: inherit;
  text-align: left;
  text-decoration: none;
  cursor: pointer;
  font: inherit;
  isolation: isolate;
  transition: border-color 0.22s ease, transform 0.22s ease;
  animation: pt-picker-card-in 0.55s ease both;
}

.pt-picker__card:nth-child(2) {
  animation-delay: 0.08s;
}

.pt-picker__card:hover,
.pt-picker__card:focus-visible {
  border-color: rgba(77, 182, 165, 0.55);
  transform: translateY(-2px);
  outline: none;
}

.pt-picker__card:focus-visible {
  box-shadow: 0 0 0 2px rgba(77, 182, 165, 0.35);
}

.pt-picker__card-media {
  position: absolute;
  inset: 0;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  transform: scale(1.02);
  transition: transform 0.55s ease;
  z-index: 0;
}

.pt-picker__card:hover .pt-picker__card-media,
.pt-picker__card:focus-visible .pt-picker__card-media {
  transform: scale(1.06);
}

.pt-picker__card-veil {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(180deg, rgba(10, 12, 16, 0.18) 0%, rgba(10, 12, 16, 0.42) 42%, rgba(10, 12, 16, 0.92) 100%);
}

.pt-picker__card-body {
  position: relative;
  z-index: 2;
  display: grid;
  align-content: end;
  gap: 0.35rem;
  min-height: inherit;
  padding: 1.15rem 1.15rem 1.2rem;
}

.pt-picker__card-label {
  font-size: 0.68rem;
  font-weight: 650;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: rgba(223, 230, 236, 0.72);
}

.pt-picker__card-title {
  font-family: "Manrope", sans-serif;
  font-size: clamp(1.2rem, 2vw, 1.45rem);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: #f2f4f6;
}

.pt-picker__card-text {
  max-width: 26rem;
  color: rgba(210, 216, 222, 0.88);
  font-size: 0.9rem;
  line-height: 1.4;
}

.pt-picker__card-cta {
  display: inline-flex;
  align-items: center;
  margin-top: 0.55rem;
  color: var(--pt-accent-strong);
  font-size: 0.86rem;
  font-weight: 700;
}

.pt-picker__card-cta::after {
  content: " →";
}

@keyframes pt-picker-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pt-picker-card-in {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 720px) {
  .pt-picker {
    padding-top: 0.85rem;
  }

  .pt-picker__grid {
    grid-template-columns: 1fr;
  }

  .pt-picker__card {
    min-height: 15.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .pt-picker,
  .pt-picker__card {
    animation: none;
  }

  .pt-picker__card,
  .pt-picker__card-media {
    transition: none;
  }
}

.phototrainer-page .phototrainer-shell__module {
  display: inline-flex;
  align-items: center;
  gap: 0.38rem;
  margin: 0;
  padding: 0.2rem 0.46rem;
  border: 1px solid rgba(77, 182, 165, 0.2);
  border-radius: 999px;
  background: rgba(77, 182, 165, 0.055);
  font-size: 0.62rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.065em;
  text-transform: uppercase;
  color: #8fa8a4;
  transform: translateY(1px);
}

.phototrainer-page .phototrainer-shell__module::before {
  content: "";
  width: 0.34rem;
  height: 0.34rem;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--pt-accent);
  box-shadow: 0 0 0 2px var(--pt-accent-soft);
}

.phototrainer-page .phototrainer-shell__scene-select {
  position: relative;
  flex: 0 0 auto;
  max-width: min(100%, 16rem);
}

.phototrainer-scene-select {
  position: relative;
}

.phototrainer-scene-select__toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  max-width: 100%;
  min-height: 1.9rem;
  margin: 0;
  padding: 0.32rem 0.55rem;
  border: 1px solid rgba(77, 182, 165, 0.28);
  border-radius: 7px;
  background: rgba(15, 18, 23, 0.42);
  color: #c5dcd7;
  font: inherit;
  font-size: 0.72rem;
  font-weight: 550;
  line-height: 1;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease, background-color 0.15s ease;
}

.phototrainer-scene-select__toggle:hover {
  border-color: rgba(77, 182, 165, 0.5);
  background: rgba(32, 38, 47, 0.72);
  color: var(--pt-ink);
}

.phototrainer-scene-select__toggle:focus-visible {
  outline: 2px solid var(--pt-focus);
  outline-offset: 2px;
}

.phototrainer-scene-select.is-open .phototrainer-scene-select__toggle {
  border-color: rgba(77, 182, 165, 0.55);
  background: rgba(77, 182, 165, 0.1);
}

.phototrainer-scene-select__prefix {
  color: #8fa8a4;
}

.phototrainer-scene-select__label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: inherit;
  font-weight: 650;
}

.phototrainer-scene-select__chevron {
  flex: 0 0 auto;
  color: var(--pt-accent);
  font-size: 0.7rem;
  line-height: 1;
}

.phototrainer-scene-select__menu {
  position: absolute;
  top: calc(100% + 0.28rem);
  right: 0;
  z-index: 20;
  min-width: max(100%, 13.5rem);
  max-width: min(18rem, calc(100vw - 1.5rem));
  margin: 0;
  padding: 0.28rem;
  list-style: none;
  border: 1px solid var(--pt-line);
  border-radius: 9px;
  background: #1a1f26;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.35);
}

.phototrainer-scene-select__menu[hidden] {
  display: none;
}

.phototrainer-scene-select__option {
  display: flex;
  flex-direction: column;
  gap: 0.16rem;
  margin: 0;
  padding: 0.48rem 0.55rem;
  border-radius: 6px;
  color: #d7dde3;
  cursor: pointer;
}

.phototrainer-scene-select__option:hover,
.phototrainer-scene-select__option.is-focused {
  background: rgba(77, 182, 165, 0.12);
}

.phototrainer-scene-select__option.is-active {
  background: rgba(77, 182, 165, 0.16);
}

.phototrainer-scene-select__option.is-disabled {
  cursor: not-allowed;
  opacity: 0.62;
}

.phototrainer-scene-select__option.is-disabled:hover,
.phototrainer-scene-select__option.is-disabled.is-focused {
  background: transparent;
}

.phototrainer-scene-select__option-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: 0.78rem;
  font-weight: 650;
  line-height: 1.2;
}

.phototrainer-scene-select__option-sub {
  font-size: 0.66rem;
  line-height: 1.25;
  color: var(--pt-muted);
}

.phototrainer-scene-select__soon {
  flex: 0 0 auto;
  padding: 0.12rem 0.34rem;
  border: 1px solid rgba(154, 163, 173, 0.25);
  border-radius: 999px;
  font-size: 0.58rem;
  font-weight: 650;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #9aa3ad;
}

.phototrainer-page .phototrainer-shell > .page-content:empty {
  display: none;
}

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

.phototrainer {
  position: relative;
  isolation: isolate;
  width: 100%;
  min-width: 280px;
  margin-inline: auto;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--pt-ink);
  box-shadow: none;
  font-family: "Inter", sans-serif;
  font-size: 0.9375rem;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

.phototrainer h2,
.phototrainer h3 {
  font-family: "Inter", sans-serif;
}

/* ——— Compact chrome actions ——— */

.phototrainer__reset {
  display: inline-flex;
  align-items: center;
  align-self: flex-end;
  gap: 0.35rem;
  flex-shrink: 0;
  margin: 0;
  padding: 0.34rem 0.58rem;
  border: 1px solid #3a424d;
  border-radius: 7px;
  background: #222831;
  color: #b5bdc7;
  font: inherit;
  font-size: 0.72rem;
  font-weight: 500;
  line-height: 1;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.phototrainer__reset-icon {
  flex-shrink: 0;
  opacity: 0.85;
}

.phototrainer__reset:disabled {
  color: #c4ccd5;
  -webkit-text-fill-color: #c4ccd5;
  border-color: #46505d;
  background: #252c35;
  opacity: 1;
  cursor: not-allowed;
}

.phototrainer__reset:focus-visible,
.phototrainer__step:focus-visible {
  outline: 2px solid var(--pt-focus);
  outline-offset: 2px;
}

/* ——— Workspace grid ——— */

.phototrainer__workspace {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  align-items: stretch;
}

.phototrainer__side {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  min-width: 0;
  padding: 0.6rem 0.68rem;
  border: 1px solid var(--pt-line);
  border-radius: 10px;
  background: var(--pt-surface);
}

.phototrainer__side-header {
  display: contents;
}

/* ——— Camera ——— */

.phototrainer__camera-area {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-width: 0;
}

.phototrainer__camera {
  width: min(100%, 700px);
}

.phototrainer__camera-body {
  position: relative;
  padding: 0.3rem 0.3rem 0.22rem;
  border: 1px solid rgba(202, 210, 218, 0.12);
  border-radius: 10px 10px 8px 8px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.1) 0%, transparent 38%),
    linear-gradient(180deg, var(--pt-camera-metal-1) 0%, var(--pt-camera-metal-2) 42%, var(--pt-camera-metal-3) 100%);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.18) inset,
    0 -1px 0 rgba(0, 0, 0, 0.35) inset,
    0 7px 20px rgba(0, 0, 0, 0.3);
}

.phototrainer__camera-bezel {
  padding: 0.12rem;
  border-radius: 5px;
  background: linear-gradient(180deg, #14181d 0%, #0a0c0f 100%);
  box-shadow:
    0 0 0 1px rgba(0, 0, 0, 0.55),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.phototrainer__camera-screen {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border-radius: 4px;
  background: var(--pt-screen);
  color: #d7dde3;
}

.phototrainer__camera-screen::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.035), transparent 32%);
  pointer-events: none;
}

.phototrainer__scene {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  background:
    radial-gradient(ellipse 70% 55% at 62% 38%, rgba(120, 140, 160, 0.22), transparent 60%),
    radial-gradient(ellipse 45% 40% at 28% 70%, rgba(77, 182, 165, 0.08), transparent 55%),
    linear-gradient(165deg, #1c2229 0%, #12161b 48%, #0d1014 100%);
  filter: brightness(1);
  transition: filter 160ms ease;
}

.phototrainer__scene-layers {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.phototrainer__scene-background {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.phototrainer__scene-layer {
  position: absolute;
  display: block;
  margin: 0;
  padding: 0;
  border: 0;
  pointer-events: none;
  user-select: none;
  transition: filter 180ms ease;
}

.phototrainer__scene-layer--background {
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.phototrainer__scene-layer--background-blur {
  /* Размытие начинается у линии стола (~низ камеры) и усиливается вверх. */
  -webkit-mask-image: linear-gradient(
    to bottom,
    black 0%,
    black 12%,
    rgba(0, 0, 0, 0.85) 28%,
    rgba(0, 0, 0, 0.55) 45%,
    rgba(0, 0, 0, 0.28) 58%,
    rgba(0, 0, 0, 0.1) 68%,
    transparent 74%,
    transparent 100%
  );
  mask-image: linear-gradient(
    to bottom,
    black 0%,
    black 12%,
    rgba(0, 0, 0, 0.85) 28%,
    rgba(0, 0, 0, 0.55) 45%,
    rgba(0, 0, 0, 0.28) 58%,
    rgba(0, 0, 0, 0.1) 68%,
    transparent 74%,
    transparent 100%
  );
  -webkit-mask-size: 100% 100%;
  mask-size: 100% 100%;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
}

.phototrainer__scene-layer--object {
  left: 0;
  top: 0;
  width: auto;
  height: auto;
  max-width: none;
  object-fit: fill;
}

.phototrainer__scene-layer--moving {
  will-change: transform;
}

.phototrainer__scene-layer.is-focus-hover {
  outline: 1px solid rgba(77, 182, 165, 0.55);
  outline-offset: 2px;
}

.phototrainer__scene-background.is-focus-hover {
  box-shadow: inset 0 0 0 1px rgba(77, 182, 165, 0.4);
}

.phototrainer__noise-overlay {
  position: absolute;
  inset: 0;
  z-index: 4;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  border: 0;
  pointer-events: none;
  user-select: none;
  opacity: 0;
  mix-blend-mode: soft-light;
  image-rendering: auto;
}

.phototrainer__focus-marker {
  position: absolute;
  z-index: 6;
  left: 50%;
  top: 50%;
  width: 1.85rem;
  height: 1.85rem;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 2px;
  background: transparent;
  transform: translate(-50%, -50%);
  cursor: grab;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  appearance: none;
  filter: none;
  /* Увеличенная зона захвата на тач-экранах */
  -webkit-tap-highlight-color: transparent;
}

.phototrainer__focus-marker::before {
  content: "";
  position: absolute;
  inset: -0.7rem;
}

.phototrainer__focus-marker[hidden] {
  display: none;
}

.phototrainer__focus-marker:focus-visible {
  outline: 2px solid var(--pt-accent);
  outline-offset: 3px;
}

.phototrainer__focus-marker.is-dragging {
  cursor: grabbing;
}

.phototrainer__focus-marker.is-dragging .phototrainer__focus-marker-frame {
  border-color: var(--pt-accent-strong);
  box-shadow:
    0 0 0 1px rgba(0, 0, 0, 0.45),
    0 0 0 3px rgba(77, 182, 165, 0.22);
}

.phototrainer__focus-marker-frame {
  position: absolute;
  inset: 0;
  border: 1.5px solid var(--pt-accent);
  border-radius: 2px;
  background: rgba(15, 18, 23, 0.12);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.4);
  pointer-events: none;
}

.phototrainer__focus-marker-corner {
  position: absolute;
  width: 0.42rem;
  height: 0.42rem;
  border-color: var(--pt-accent-strong);
  border-style: solid;
  pointer-events: none;
}

.phototrainer__focus-marker-corner--tl {
  top: -1px;
  left: -1px;
  border-width: 2px 0 0 2px;
}

.phototrainer__focus-marker-corner--tr {
  top: -1px;
  right: -1px;
  border-width: 2px 2px 0 0;
}

.phototrainer__focus-marker-corner--bl {
  bottom: -1px;
  left: -1px;
  border-width: 0 0 2px 2px;
}

.phototrainer__focus-marker-corner--br {
  right: -1px;
  bottom: -1px;
  border-width: 0 2px 2px 0;
}

.phototrainer__focus-marker-dot {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0.22rem;
  height: 0.22rem;
  border-radius: 50%;
  background: var(--pt-accent-strong);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.35);
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.phototrainer__scene-status {
  position: absolute;
  inset: 0 0 3.4rem;
  z-index: 5;
  display: grid;
  place-items: center;
  margin: 0;
  padding: 0 1rem;
  font-size: clamp(0.82rem, 2vw, 0.98rem);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-align: center;
  text-transform: uppercase;
  color: rgba(174, 182, 190, 0.88);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.65);
  pointer-events: none;
}

.phototrainer__scene-status[hidden] {
  display: none;
}

.phototrainer__scene[data-status="ready"] {
  background: #0d1014;
}

.phototrainer__capture-button {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 8;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 30px;
  min-width: 44px;
  margin: 0;
  padding: 0.28rem 0.65rem;
  border: 1px solid rgba(77, 182, 165, 0.55);
  border-radius: 6px;
  background: rgba(12, 16, 22, 0.72);
  color: var(--pt-ink);
  font: inherit;
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  line-height: 1;
  text-align: center;
  white-space: nowrap;
  cursor: pointer;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.06) inset,
    0 4px 14px rgba(0, 0, 0, 0.35);
  transition:
    background 140ms ease,
    border-color 140ms ease,
    color 140ms ease;
}

.phototrainer__capture-button:hover {
  background: rgba(18, 24, 32, 0.88);
  border-color: var(--pt-accent-strong);
  color: var(--pt-accent-strong);
}

.phototrainer__capture-button:focus-visible {
  outline: 2px solid var(--pt-accent);
  outline-offset: 2px;
}

.phototrainer__capture-button[hidden] {
  display: none;
}

.phototrainer__capture-view {
  position: absolute;
  inset: 0;
  z-index: 12;
  overflow: hidden;
  background: #0b0d10;
  color: var(--pt-ink);
}

.phototrainer__capture-view[hidden] {
  display: none;
}

.phototrainer__capture-canvas {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  background: #0b0d10;
}

.phototrainer__capture-close {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 30px;
  min-width: 30px;
  width: auto;
  height: auto;
  margin: 0;
  padding: 0.28rem 0.55rem;
  border: 1px solid rgba(77, 182, 165, 0.55);
  border-radius: 6px;
  background: rgba(12, 16, 22, 0.72);
  color: var(--pt-ink);
  font: inherit;
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1;
  text-align: center;
  cursor: pointer;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.06) inset,
    0 4px 14px rgba(0, 0, 0, 0.35);
  transition:
    background 140ms ease,
    border-color 140ms ease,
    color 140ms ease;
}

.phototrainer__capture-close:hover {
  background: rgba(18, 24, 32, 0.88);
  border-color: var(--pt-accent-strong);
  color: var(--pt-accent-strong);
}

.phototrainer__capture-close:focus-visible {
  outline: 2px solid var(--pt-accent);
  outline-offset: 2px;
}

.phototrainer__capture-meta,
.phototrainer__capture-note {
  position: absolute;
  left: 0;
  right: 0;
  z-index: 1;
  margin: 0;
  padding: 0.35rem 0.7rem;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.65);
  pointer-events: none;
}

.phototrainer__capture-meta {
  bottom: 2.15rem;
  font-family: var(--pt-mono);
  font-size: clamp(0.72rem, 1.8vw, 0.86rem);
  letter-spacing: 0.02em;
  color: #d7dde3;
  background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.55));
}

.phototrainer__capture-note {
  bottom: 0;
  padding-top: 0.15rem;
  padding-bottom: 0.55rem;
  font-size: clamp(0.72rem, 1.7vw, 0.84rem);
  line-height: 1.35;
  color: rgba(214, 222, 230, 0.92);
  background: rgba(0, 0, 0, 0.72);
}

.phototrainer__capture-note[hidden] {
  display: none;
}

.phototrainer__camera-screen.is-capture-open .phototrainer__hud {
  visibility: hidden;
}

@media (max-width: 720px) {
  .phototrainer__capture-button,
  .phototrainer__capture-close {
    top: 10px;
    right: 10px;
    min-height: 28px;
    padding: 0.24rem 0.55rem;
  }

  .phototrainer__capture-button {
    font-size: 0.66rem;
  }

  .phototrainer__capture-close {
    min-width: 28px;
    font-size: 0.8rem;
  }

  .phototrainer__capture-meta,
  .phototrainer__capture-note {
    padding-left: 0.55rem;
    padding-right: 0.55rem;
  }
}

.phototrainer__hud {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  padding: 0.35rem 0.55rem 0.4rem;
  background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.72) 45%, rgba(0, 0, 0, 0.82) 100%);
  /* HUD поверх сцены визуально; касания должны доходить до метки фокуса */
  pointer-events: none;
}

.phototrainer__meter {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.1rem;
  margin-bottom: 0.2rem;
  padding-bottom: 0.1rem;
  font-family: var(--pt-mono);
  font-size: 0.62rem;
  letter-spacing: 0.06em;
  color: rgba(201, 209, 216, 0.88);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.7);
}

.phototrainer__meter-scale {
  display: flex;
  justify-content: space-between;
  width: min(100%, 16rem);
  gap: 0.35rem;
}

.phototrainer__meter-zero {
  color: #fff;
  font-weight: 700;
}

.phototrainer__meter-pointer-track {
  position: relative;
  width: min(100%, 16rem);
  height: 0.55rem;
}

.phototrainer__meter-pointer {
  position: absolute;
  top: 0;
  left: 50%;
  color: var(--pt-accent-strong);
  font-size: 0.55rem;
  line-height: 1;
  transform: translateX(-50%);
  transition: left 0.15s ease;
}

.phototrainer__meter-value {
  margin-top: 0.05rem;
  font-size: 0.58rem;
  letter-spacing: 0.04em;
  color: var(--pt-accent-strong);
  font-variant-numeric: tabular-nums;
}

.phototrainer__readout {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.35rem 0.85rem;
  font-family: var(--pt-mono);
  font-size: 0.72rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.05em;
  color: #f2f5f7;
}

.phototrainer__readout-mode {
  color: var(--pt-accent-strong);
  font-weight: 700;
}

.phototrainer__camera-grip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.16rem;
  padding: 0 0.08rem;
}

.phototrainer__camera-logo {
  font-size: 0.56rem;
  font-weight: 650;
  letter-spacing: 0.14em;
  color: rgba(220, 226, 232, 0.55);
}

.phototrainer__camera-dot {
  width: 0.32rem;
  height: 0.32rem;
  border-radius: 50%;
  background: var(--pt-accent);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.35);
}

/* ——— Controls panel ——— */

.phototrainer__controls {
  display: flex;
  flex-direction: column;
  flex: 0 0 auto;
  order: 1;
  min-height: 0;
  padding: 0;
  border: 0;
  background: transparent;
}

.phototrainer__panel-title {
  order: 0;
  margin: 0 0 0.18rem;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--pt-faint);
}

.phototrainer__params {
  display: flex;
  flex-direction: column;
}

.phototrainer__param {
  padding: 0.45rem 0;
}

.phototrainer__param + .phototrainer__param {
  border-top: 1px solid var(--pt-line-soft);
}

.phototrainer__param-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.3rem;
}

.phototrainer__param-label {
  margin: 0;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--pt-muted);
}

.phototrainer__param-value {
  margin: 0;
  font-family: var(--pt-mono);
  font-size: 1.05rem;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  color: var(--pt-accent-strong);
  line-height: 1;
}

.phototrainer__param-row {
  display: grid;
  grid-template-columns: 1.65rem minmax(0, 1fr) 1.65rem;
  align-items: center;
  gap: 0.4rem;
}

.phototrainer__step {
  display: inline-grid;
  place-items: center;
  width: 1.65rem;
  height: 1.65rem;
  margin: 0;
  padding: 0;
  border: 1px solid rgba(154, 163, 173, 0.18);
  border-radius: 6px;
  background: var(--pt-surface-2);
  color: var(--pt-ink);
  font: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1;
  cursor: pointer;
}

.phototrainer__step:disabled {
  color: #89939e;
  background: rgba(32, 38, 47, 0.52);
  cursor: not-allowed;
}

.phototrainer__slider {
  position: relative;
  height: 1.65rem;
  display: flex;
  align-items: center;
}

.phototrainer__slider-track {
  position: relative;
  display: block;
  width: 100%;
  height: 4px;
  overflow: hidden;
  border-radius: 999px;
  background: #2a313a;
  pointer-events: none;
}

.phototrainer__slider-fill {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #318d80, var(--pt-accent-strong));
}

.phototrainer__slider-thumb {
  position: absolute;
  top: 50%;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--pt-accent-strong);
  background: #0f1318;
  box-shadow: 0 0 0 3px var(--pt-accent-soft);
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.phototrainer__slider-input {
  position: absolute;
  inset: 0;
  z-index: 2;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0;
  cursor: pointer;
}

.phototrainer__slider-input:focus-visible {
  opacity: 1;
  outline: 2px solid var(--pt-focus);
  outline-offset: 2px;
  border-radius: 6px;
  background: transparent;
}

.phototrainer__sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.phototrainer__scale {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  gap: 0.08rem;
  margin-top: 0.25rem;
  padding: 0 0.05rem;
  font-family: var(--pt-mono);
  font-size: 0.63rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
  color: #818b97;
}

.phototrainer__scale span {
  min-width: 0;
  text-align: center;
  white-space: nowrap;
}

.phototrainer__scale .is-active {
  color: var(--pt-accent-strong);
  font-weight: 700;
}

.phototrainer__scale--dense span:nth-child(even) {
  opacity: 0.9;
}

.phototrainer__scale--dense {
  grid-template-columns: repeat(6, minmax(0, 1fr));
  font-size: 0.61rem;
  letter-spacing: -0.025em;
}

/* ——— Hint ——— */

.phototrainer__hint {
  order: 2;
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding: 0.55rem 0.6rem;
  border: 1px solid var(--pt-line-soft);
  border-radius: 8px;
  background: rgba(15, 18, 23, 0.34);
}

.phototrainer__hint-title {
  margin: 0 0 0.2rem;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #8ba39f;
}

.phototrainer__hint-text {
  margin: 0;
  font-size: 0.73rem;
  line-height: 1.32;
  color: var(--pt-muted);
}

.phototrainer__side-header > .phototrainer__reset {
  order: 3;
  margin-top: 0.05rem;
}

.phototrainer__learning-list {
  display: grid;
  gap: 0.2rem;
  margin: 0.42rem 0 0;
}

.phototrainer__learning-list > div {
  display: grid;
  grid-template-columns: minmax(5.2rem, 0.42fr) minmax(0, 1fr);
  gap: 0.5rem;
  padding-top: 0.22rem;
  border-top: 1px solid var(--pt-line-soft);
}

.phototrainer__learning-list dt,
.phototrainer__learning-list dd {
  margin: 0;
  font-size: 0.68rem;
  line-height: 1.28;
}

.phototrainer__learning-list dt {
  font-weight: 600;
  color: #b7cbc7;
}

.phototrainer__learning-list dd {
  color: var(--pt-muted);
}

.phototrainer__meter-note {
  margin: auto 0 0;
  padding-top: 0.4rem;
  font-size: 0.64rem;
  line-height: 1.3;
  color: var(--pt-faint);
}

/* ——— Tablet portrait / large phone: still stacked, denser ——— */

@media (max-width: 899px) {
  .phototrainer-page .phototrainer-section {
    padding-block: 0.3rem 1.1rem;
  }

  .phototrainer-page .phototrainer-shell {
    width: min(var(--gf-container, 1120px), 100% - 1.5rem);
  }

  .phototrainer-page .phototrainer-shell__chrome {
    flex-wrap: wrap;
    padding: 0.42rem 0 0.48rem;
    margin-bottom: 0.4rem;
  }

  .phototrainer-page .phototrainer-shell__scene-select {
    margin-left: auto;
  }

  .phototrainer-scene-select__prefix {
    display: none;
  }

  .phototrainer__workspace {
    gap: 0.55rem;
  }

  .phototrainer__side {
    gap: 0.42rem;
  }

  .phototrainer__controls {
    padding: 0;
  }

  .phototrainer__hint {
    padding-inline: 0.62rem;
  }
}

@media (min-width: 700px) and (max-width: 899px) {
  .phototrainer__param-value {
    font-size: 1.1rem;
  }

  .phototrainer__scale {
    font-size: 0.64rem;
  }
}

/* ——— Laptop / Desktop: two columns ——— */

@media (min-width: 900px) {
  .phototrainer__workspace {
    grid-template-columns: minmax(0, 1.75fr) minmax(300px, 1fr);
    gap: clamp(0.75rem, 1.2vw, 1rem);
    align-items: stretch;
  }

  .phototrainer__camera {
    --pt-camera-screen-max: clamp(22rem, calc(100svh - 20rem), 32rem);
    width: 100%;
    max-width: min(100%, calc(var(--pt-camera-screen-max) * 1.5 + 1rem));
  }

  .phototrainer__camera-area {
    align-items: flex-start;
  }

  .phototrainer__side {
    align-self: stretch;
    min-height: 0;
  }

  .phototrainer__side-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
  }

  .phototrainer__side-header > .phototrainer__reset {
    order: initial;
    margin: 0;
  }

  .phototrainer__hint {
    flex: 1 1 auto;
  }

  .phototrainer__param {
    padding: 0.48rem 0;
  }

  .phototrainer__param-value {
    font-size: 1.08rem;
  }

  .phototrainer__hint-text {
    font-size: 0.76rem;
  }
}

@media (min-width: 1100px) {
  .phototrainer__workspace {
    grid-template-columns: minmax(0, 1.78fr) minmax(320px, 1fr);
    gap: 1rem;
  }

  .phototrainer__camera-body {
    padding: 0.3rem 0.3rem 0.22rem;
  }

  .phototrainer__controls {
    padding: 0;
  }

  .phototrainer__param-value {
    font-size: 1.1rem;
  }

  .phototrainer__step {
    width: 1.68rem;
    height: 1.68rem;
  }

  .phototrainer__param-row {
    grid-template-columns: 1.68rem minmax(0, 1fr) 1.68rem;
  }

  .phototrainer__slider {
    height: 1.68rem;
  }
}

/* Touch-friendly hit area without bulky visuals */
@media (pointer: coarse) {
  .phototrainer__step {
    position: relative;
  }

  .phototrainer__step::before {
    content: "";
    position: absolute;
    inset: -0.45rem;
  }

  .phototrainer__reset {
    padding: 0.4rem 0.65rem;
  }
}

@media (max-width: 420px) {
  .phototrainer__scale {
    font-size: 0.54rem;
  }

  .phototrainer__readout {
    font-size: 0.65rem;
    gap: 0.25rem 0.55rem;
  }

  .phototrainer__scale--dense {
    font-size: 0.55rem;
  }
}

/* ——— Learning assistant (optional, below trainer) ——— */

.phototrainer__learning {
  margin-top: 0.75rem;
  min-width: 0;
}

.phototrainer__learning-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem 0.85rem;
  padding: 0.45rem 0.15rem;
}

.phototrainer__learning-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin: 0;
  padding: 0.42rem 0.7rem;
  border: 1px solid rgba(77, 182, 165, 0.35);
  border-radius: 8px;
  background: rgba(77, 182, 165, 0.08);
  color: #c5dcd7;
  font: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease, color 0.15s ease;
}

.phototrainer__learning-toggle:hover {
  border-color: rgba(77, 182, 165, 0.55);
  background: rgba(77, 182, 165, 0.14);
  color: var(--pt-ink);
}

.phototrainer__learning-toggle:focus-visible {
  outline: 2px solid var(--pt-focus);
  outline-offset: 2px;
}

.phototrainer__learning-toggle-icon {
  font-size: 0.9rem;
  line-height: 1;
}

.phototrainer__learning-teaser {
  margin: 0;
  flex: 1 1 12rem;
  min-width: 0;
  font-size: 0.72rem;
  line-height: 1.35;
  color: var(--pt-muted);
}

.phototrainer__learning-panel {
  margin-top: 0.35rem;
  padding: 0.85rem 0.95rem 0.95rem;
  border: 1px solid var(--pt-line);
  border-radius: 10px;
  background: var(--pt-surface);
}

.phototrainer__learning-panel[hidden] {
  display: none;
}

.phototrainer__learning-panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.45rem;
}

.phototrainer__learning-title {
  margin: 0;
  font-size: 0.98rem;
  font-weight: 650;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--pt-ink);
}

.phototrainer__learning-close {
  flex: 0 0 auto;
  margin: 0;
  padding: 0.28rem 0.55rem;
  border: 1px solid #3a424d;
  border-radius: 7px;
  background: #222831;
  color: #b5bdc7;
  font: inherit;
  font-size: 0.7rem;
  font-weight: 500;
  cursor: pointer;
}

.phototrainer__learning-close:focus-visible {
  outline: 2px solid var(--pt-focus);
  outline-offset: 2px;
}

.phototrainer__learning-lead {
  margin: 0 0 0.7rem;
  font-size: 0.8rem;
  line-height: 1.4;
  color: var(--pt-muted);
}

.phototrainer__learning-block + .phototrainer__learning-block {
  margin-top: 0.75rem;
  padding-top: 0.7rem;
  border-top: 1px solid var(--pt-line-soft);
}

.phototrainer__learning-label {
  margin: 0 0 0.35rem;
  font-size: 0.66rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #8ba39f;
}

.phototrainer__learning-list-plain {
  margin: 0;
  padding-left: 1.05rem;
  font-size: 0.78rem;
  line-height: 1.4;
  color: #c7ced6;
}

.phototrainer__learning-list-plain li + li {
  margin-top: 0.28rem;
}

.phototrainer__learning-ev {
  display: grid;
  grid-template-columns: minmax(6rem, 0.4fr) minmax(0, 1fr);
  gap: 0.22rem 0.75rem;
  margin: 0;
  font-family: var(--pt-mono);
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
}

.phototrainer__learning-ev dt {
  margin: 0;
  color: var(--pt-muted);
}

.phototrainer__learning-ev dd {
  margin: 0;
  color: var(--pt-ink);
}

.phototrainer__learning-ev dd[data-ev-sign="plus"]::before,
.phototrainer__learning-total[data-ev-sign="plus"]::before {
  content: none;
}

.phototrainer__learning-ev dd[data-ev-sign="plus"],
.phototrainer__learning-total[data-ev-sign="plus"] {
  color: var(--pt-accent-strong);
}

.phototrainer__learning-ev dd[data-ev-sign="minus"],
.phototrainer__learning-total[data-ev-sign="minus"] {
  color: #e0a38a;
}

.phototrainer__learning-ev dd[data-ev-sign="zero"],
.phototrainer__learning-total[data-ev-sign="zero"] {
  color: #d5dbe2;
}

.phototrainer__learning-total {
  margin: 0.45rem 0 0;
  font-family: var(--pt-mono);
  font-size: 0.84rem;
  font-weight: 650;
  color: var(--pt-ink);
}

.phototrainer__learning-base-note,
.phototrainer__learning-meter,
.phototrainer__learning-side {
  margin: 0.35rem 0 0;
  font-size: 0.74rem;
  line-height: 1.4;
  color: var(--pt-muted);
}

@media (min-width: 900px) {
  .phototrainer__learning {
    margin-top: 0.9rem;
  }

  .phototrainer__learning-panel {
    padding: 1rem 1.1rem 1.1rem;
  }
}