/* Project Anatomy — scoped only under .kovalchuk-project-anatomy */

.kovalchuk-project-anatomy {
  --kpa-bg: #faf9f5;
  --kpa-ink: #1c1b17;
  --kpa-muted: rgba(28, 27, 23, 0.68);
  --kpa-soft: rgba(28, 27, 23, 0.42);
  --kpa-line: rgba(28, 27, 23, 0.1);
  --kpa-active: #f0eee8;
  --kpa-accent: #a89885;
  background: var(--kpa-bg);
  padding: 80px 0 80px;
}

.kovalchuk-project-anatomy__inner {
  max-width: 1580px;
  margin: 0 auto;
  padding: 0 48px;
  box-sizing: border-box;
}

.kovalchuk-project-anatomy__label {
  /* Typography delegated to .kovalchuk-section-label */
  display: block;
}

.kovalchuk-project-anatomy__title {
  font-family: "room", sans-serif;
  font-size: clamp(40px, 4.2vw, 58px);
  font-weight: 300;
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--kpa-ink);
  margin: 0 0 22px;
  max-width: 720px;
}

.kovalchuk-project-anatomy__intro {
  font-family: "Inter", sans-serif;
  font-size: 18px;
  line-height: 1.65;
  color: var(--kpa-muted);
  margin: 0 0 28px;
  max-width: 640px;
}

.kovalchuk-project-anatomy__visual {
  position: relative;
  width: 100%;
  /* Один кадр на все главы: высота подобрана под изометрию планировки */
  height: clamp(560px, 54vw, 780px);
  overflow: hidden;
  background: #eceae4;
  transition: background 400ms ease;
}

.kovalchuk-project-anatomy__visual--doc {
  background: #f4f1ea;
}

.kovalchuk-project-anatomy__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 450ms ease;
  pointer-events: none;
}

.kovalchuk-project-anatomy__image[data-fit="contain"] {
  object-fit: contain;
  padding: 36px 48px;
  box-sizing: border-box;
  background: #f4f1ea;
}

.kovalchuk-project-anatomy[data-active-step="2"] .kovalchuk-project-anatomy__visual {
  background: #fff;
}

.kovalchuk-project-anatomy__image[data-fit="plan"] {
  object-fit: contain;
  object-position: center center;
  padding: 12px 20px 10px;
  box-sizing: border-box;
  background: #fff;
}

.kovalchuk-project-anatomy__image.is-active {
  opacity: 1;
  pointer-events: auto;
  cursor: zoom-in;
}

.kovalchuk-project-anatomy__collage {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: 1.22fr 1fr 0.8fr;
  grid-template-rows: 1.08fr 0.92fr;
  gap: 6px;
  margin: 0;
  background: var(--kpa-bg);
  opacity: 0;
  pointer-events: none;
  transition: opacity 450ms ease;
}

.kovalchuk-project-anatomy__collage.is-active {
  opacity: 1;
  pointer-events: auto;
}

.kovalchuk-project-anatomy__tile {
  margin: 0;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  background: #eceae4;
}

.kovalchuk-project-anatomy__tile img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  cursor: zoom-in;
}

.kovalchuk-project-anatomy__tile--living {
  grid-area: 1 / 1 / 3 / 2;
}

.kovalchuk-project-anatomy__tile--living img {
  object-position: 46% 50%;
}

.kovalchuk-project-anatomy__tile--bedroom {
  grid-area: 1 / 2 / 2 / 3;
}

.kovalchuk-project-anatomy__tile--bedroom img {
  object-position: 28% 46%;
}

.kovalchuk-project-anatomy__tile--bath {
  grid-area: 2 / 2 / 3 / 3;
}

.kovalchuk-project-anatomy__tile--bath img {
  object-position: 50% 62%;
}

.kovalchuk-project-anatomy__tile--dining {
  grid-area: 1 / 3 / 3 / 4;
}

.kovalchuk-project-anatomy__tile--dining img {
  object-position: 50% 38%;
}

/* Task / survey: model stays tall, five site stills around it */
.kovalchuk-project-anatomy__collage--task {
  grid-template-columns: 1.22fr 0.95fr 0.95fr 0.95fr;
  grid-template-rows: 1.08fr 0.92fr;
}

.kovalchuk-project-anatomy__tile--t1 {
  grid-area: 1 / 1 / 3 / 2;
}

.kovalchuk-project-anatomy__tile--t1 img {
  object-position: 50% 58%;
}

.kovalchuk-project-anatomy__tile--t2 {
  grid-area: 1 / 2 / 2 / 3;
}

.kovalchuk-project-anatomy__tile--t2 img {
  object-position: 48% 46%;
}

.kovalchuk-project-anatomy__tile--t3 {
  grid-area: 1 / 3 / 2 / 4;
}

.kovalchuk-project-anatomy__tile--t3 img {
  object-position: 52% 48%;
}

.kovalchuk-project-anatomy__tile--t4 {
  grid-area: 1 / 4 / 2 / 5;
}

.kovalchuk-project-anatomy__tile--t4 img {
  object-position: 42% 50%;
}

.kovalchuk-project-anatomy__tile--t5 {
  grid-area: 2 / 2 / 3 / 4;
}

.kovalchuk-project-anatomy__tile--t5 img {
  object-position: 48% 62%;
}

.kovalchuk-project-anatomy__tile--t6 {
  grid-area: 2 / 4 / 3 / 5;
}

.kovalchuk-project-anatomy__tile--t6 img {
  object-position: 38% 28%;
}

/* Materials: hero light + kitchen + panel, three texture tiles below */
.kovalchuk-project-anatomy__collage--materials {
  grid-template-columns: 1.22fr 1.08fr 1fr;
  grid-template-rows: 1.18fr 0.86fr 0.9fr;
}

.kovalchuk-project-anatomy__tile--m-lights {
  grid-area: 1 / 1 / 4 / 2;
}

.kovalchuk-project-anatomy__tile--m-lights img {
  object-position: 62% 42%;
}

.kovalchuk-project-anatomy__tile--m-panel {
  grid-area: 1 / 2 / 3 / 3;
}

.kovalchuk-project-anatomy__tile--m-panel img {
  object-position: 50% 38%;
}

.kovalchuk-project-anatomy__tile--m-kitchen {
  grid-area: 1 / 3 / 2 / 4;
}

.kovalchuk-project-anatomy__tile--m-kitchen img {
  object-position: 52% 36%;
}

.kovalchuk-project-anatomy__tile--m-parquet {
  grid-area: 2 / 3 / 3 / 4;
}

.kovalchuk-project-anatomy__tile--m-parquet img {
  object-position: 54% 42%;
}

.kovalchuk-project-anatomy__tile--m-ceiling {
  grid-area: 3 / 2 / 4 / 3;
}

.kovalchuk-project-anatomy__tile--m-ceiling img {
  object-position: 48% 62%;
}

.kovalchuk-project-anatomy__tile--m-floor {
  grid-area: 3 / 3 / 4 / 4;
}

.kovalchuk-project-anatomy__tile--m-floor img {
  object-position: 48% 16%;
}

/* Tech: hidden door + kitchen as finished nodes, four install stills */
.kovalchuk-project-anatomy__collage--tech {
  grid-template-columns: 1.2fr 1.05fr 0.92fr 0.92fr;
  grid-template-rows: 1.12fr 0.88fr;
}

.kovalchuk-project-anatomy__tile--x-door {
  grid-area: 1 / 1 / 3 / 2;
}

.kovalchuk-project-anatomy__tile--x-door img {
  object-position: 62% 48%;
}

.kovalchuk-project-anatomy__tile--x-kitchen {
  grid-area: 1 / 2 / 3 / 3;
}

.kovalchuk-project-anatomy__tile--x-kitchen img {
  object-position: 46% 22%;
}

.kovalchuk-project-anatomy__tile--x-light {
  grid-area: 1 / 3 / 2 / 4;
}

.kovalchuk-project-anatomy__tile--x-light img {
  object-position: 54% 22%;
}

.kovalchuk-project-anatomy__tile--x-mep {
  grid-area: 1 / 4 / 2 / 5;
}

.kovalchuk-project-anatomy__tile--x-mep img {
  object-position: 48% 42%;
}

.kovalchuk-project-anatomy__tile--x-circles {
  grid-area: 2 / 3 / 3 / 4;
}

.kovalchuk-project-anatomy__tile--x-circles img {
  object-position: 50% 18%;
}

.kovalchuk-project-anatomy__tile--x-hvac {
  grid-area: 2 / 4 / 3 / 5;
}

.kovalchuk-project-anatomy__tile--x-hvac img {
  object-position: 50% 32%;
}

.kovalchuk-project-anatomy__tabs {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border-bottom: 1px solid var(--kpa-line);
  margin-top: 0;
}

.kovalchuk-project-anatomy__tab {
  appearance: none;
  background: transparent;
  border: 0;
  border-top: 2px solid transparent;
  margin: 0;
  padding: 22px 16px 24px;
  text-align: left;
  cursor: pointer;
  color: var(--kpa-soft);
  transition: background 350ms ease, color 350ms ease, border-color 350ms ease;
  font: inherit;
}

.kovalchuk-project-anatomy__tab:hover {
  color: var(--kpa-ink);
}

.kovalchuk-project-anatomy__tab:focus-visible {
  outline: 1px solid rgba(28, 27, 23, 0.45);
  outline-offset: -2px;
}

.kovalchuk-project-anatomy__tab.is-active,
.kovalchuk-project-anatomy__tab[aria-selected="true"] {
  background: var(--kpa-active);
  color: var(--kpa-ink);
  border-top-color: var(--kpa-ink);
}

.kovalchuk-project-anatomy__tab-number {
  display: block;
  font-family: "room", sans-serif;
  font-size: 22px;
  font-weight: 300;
  line-height: 1;
  margin-bottom: 10px;
}

.kovalchuk-project-anatomy__tab-title {
  display: block;
  font-family: "Inter", sans-serif;
  font-size: 15px;
  letter-spacing: 0.02em;
  line-height: 1.35;
  font-weight: 500;
}

.kovalchuk-project-anatomy__content {
  display: grid;
  grid-template-columns: minmax(88px, 0.2fr) minmax(0, 1fr);
  gap: 28px 64px;
  align-items: start;
  margin-top: 28px;
  padding-top: 8px;
  min-height: 0;
}

.kovalchuk-project-anatomy__content-number {
  font-family: "room", sans-serif;
  font-size: clamp(64px, 7vw, 96px);
  font-weight: 300;
  line-height: 0.9;
  color: rgba(28, 27, 23, 0.18);
  margin: 0;
  padding-top: 2px;
}

.kovalchuk-project-anatomy__content-copy {
  max-width: 720px;
  padding-top: 10px;
}

.kovalchuk-project-anatomy__content-title {
  font-family: "room", sans-serif;
  font-size: clamp(28px, 2.4vw, 36px);
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--kpa-ink);
  margin: 0 0 16px;
}

.kovalchuk-project-anatomy__content-text {
  font-family: "Inter", sans-serif;
  font-size: 18px;
  line-height: 1.7;
  color: var(--kpa-muted);
  margin: 0 0 20px;
  max-width: 58ch;
}

.kovalchuk-project-anatomy__content-note {
  font-family: "Inter", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: rgba(28, 27, 23, 0.55);
  margin: 0;
  padding-top: 18px;
  border-top: 1px solid var(--kpa-line);
  max-width: 52ch;
}

.kovalchuk-project-anatomy__content.is-updating .kovalchuk-project-anatomy__content-copy,
.kovalchuk-project-anatomy__content.is-updating .kovalchuk-project-anatomy__content-number {
  opacity: 0;
  transform: translateY(6px);
}

.kovalchuk-project-anatomy__content-copy,
.kovalchuk-project-anatomy__content-number {
  transition: opacity 400ms ease, transform 400ms ease;
}

.kovalchuk-project-anatomy__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 28px;
  font-family: "Inter", sans-serif;
  font-size: 15px;
  color: var(--kpa-ink);
  text-decoration: none;
  border-bottom: 1px solid rgba(28, 27, 23, 0.25);
  padding-bottom: 2px;
  transition: gap 240ms ease, border-color 240ms ease;
}

.kovalchuk-project-anatomy__link:hover {
  gap: 12px;
  border-bottom-color: rgba(28, 27, 23, 0.55);
}

.kovalchuk-project-anatomy__link:focus-visible {
  outline: 1px solid rgba(28, 27, 23, 0.45);
  outline-offset: 4px;
}

@media (prefers-reduced-motion: reduce) {
  .kovalchuk-project-anatomy__image,
  .kovalchuk-project-anatomy__collage,
  .kovalchuk-project-anatomy__tab,
  .kovalchuk-project-anatomy__visual,
  .kovalchuk-project-anatomy__content-copy,
  .kovalchuk-project-anatomy__content-number,
  .kovalchuk-project-anatomy__link {
    transition: none !important;
  }

  .kovalchuk-project-anatomy__content.is-updating .kovalchuk-project-anatomy__content-copy,
  .kovalchuk-project-anatomy__content.is-updating .kovalchuk-project-anatomy__content-number {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 1100px) {
  .kovalchuk-project-anatomy__inner {
    padding: 0 36px;
  }

  .kovalchuk-project-anatomy__visual {
    height: clamp(500px, 64vw, 660px);
  }

  .kovalchuk-project-anatomy__image[data-fit="plan"] {
    padding: 10px 14px 8px;
  }

  .kovalchuk-project-anatomy__collage {
    gap: 5px;
  }

  .kovalchuk-project-anatomy__collage--task {
    grid-template-columns: 1.18fr 0.94fr 0.94fr 0.94fr;
  }

  .kovalchuk-project-anatomy__content {
    grid-template-columns: 88px 1fr;
    gap: 24px 36px;
  }

  .kovalchuk-project-anatomy__tabs {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
  }

  .kovalchuk-project-anatomy__tab {
    flex: 0 0 auto;
    min-width: 148px;
    scroll-snap-align: start;
  }
}

@media (max-width: 767px) {
  .kovalchuk-project-anatomy {
    padding: 56px 0;
  }

  .kovalchuk-project-anatomy__inner {
    padding: 0 22px;
  }

  .kovalchuk-project-anatomy__title {
    font-size: clamp(38px, 9vw, 44px);
  }

  .kovalchuk-project-anatomy__intro {
    font-size: 16px;
    margin-bottom: 32px;
  }

  .kovalchuk-project-anatomy__visual {
    height: clamp(380px, 92vw, 480px);
  }

  .kovalchuk-project-anatomy__image[data-fit="plan"] {
    padding: 8px 4px 6px;
  }

  .kovalchuk-project-anatomy__collage {
    grid-template-columns: 1.12fr 0.88fr;
    grid-template-rows: 1.12fr 0.88fr;
    gap: 4px;
  }

  .kovalchuk-project-anatomy__tile--living {
    grid-area: 1 / 1 / 2 / 2;
  }

  .kovalchuk-project-anatomy__tile--dining {
    grid-area: 1 / 2 / 2 / 3;
  }

  .kovalchuk-project-anatomy__tile--bedroom {
    grid-area: 2 / 1 / 3 / 2;
  }

  .kovalchuk-project-anatomy__tile--bath {
    grid-area: 2 / 2 / 3 / 3;
  }

  .kovalchuk-project-anatomy__collage--task {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1.12fr 1fr 0.92fr;
  }

  .kovalchuk-project-anatomy__tile--t1 {
    grid-area: 1 / 1 / 2 / 2;
  }

  .kovalchuk-project-anatomy__tile--t2 {
    grid-area: 1 / 2 / 2 / 3;
  }

  .kovalchuk-project-anatomy__tile--t3 {
    grid-area: 2 / 1 / 3 / 2;
  }

  .kovalchuk-project-anatomy__tile--t4 {
    grid-area: 2 / 2 / 3 / 3;
  }

  .kovalchuk-project-anatomy__tile--t5 {
    grid-area: 3 / 1 / 4 / 2;
  }

  .kovalchuk-project-anatomy__tile--t6 {
    grid-area: 3 / 2 / 4 / 3;
  }

  .kovalchuk-project-anatomy__collage--materials {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1.18fr 1fr 0.92fr;
  }

  .kovalchuk-project-anatomy__tile--m-lights {
    grid-area: 1 / 1 / 2 / 2;
  }

  .kovalchuk-project-anatomy__tile--m-panel {
    grid-area: 1 / 2 / 2 / 3;
  }

  .kovalchuk-project-anatomy__tile--m-kitchen {
    grid-area: 2 / 1 / 3 / 2;
  }

  .kovalchuk-project-anatomy__tile--m-parquet {
    grid-area: 2 / 2 / 3 / 3;
  }

  .kovalchuk-project-anatomy__tile--m-ceiling {
    grid-area: 3 / 1 / 4 / 2;
  }

  .kovalchuk-project-anatomy__tile--m-floor {
    grid-area: 3 / 2 / 4 / 3;
  }

  .kovalchuk-project-anatomy__collage--tech {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1.18fr 1fr 0.92fr;
  }

  .kovalchuk-project-anatomy__tile--x-door {
    grid-area: 1 / 1 / 2 / 2;
  }

  .kovalchuk-project-anatomy__tile--x-kitchen {
    grid-area: 1 / 2 / 2 / 3;
  }

  .kovalchuk-project-anatomy__tile--x-light {
    grid-area: 2 / 1 / 3 / 2;
  }

  .kovalchuk-project-anatomy__tile--x-mep {
    grid-area: 2 / 2 / 3 / 3;
  }

  .kovalchuk-project-anatomy__tile--x-circles {
    grid-area: 3 / 1 / 4 / 2;
  }

  .kovalchuk-project-anatomy__tile--x-hvac {
    grid-area: 3 / 2 / 4 / 3;
  }

  .kovalchuk-project-anatomy__tab {
    min-width: 132px;
    padding: 18px 14px 20px;
  }

  .kovalchuk-project-anatomy__tab-title {
    font-size: 14px;
  }

  .kovalchuk-project-anatomy__content {
    grid-template-columns: 1fr;
    gap: 8px;
    margin-top: 28px;
  }

  .kovalchuk-project-anatomy__content-number {
    font-size: 52px;
  }

  .kovalchuk-project-anatomy__content-title {
    font-size: 28px;
  }

  .kovalchuk-project-anatomy__content-text,
  .kovalchuk-project-anatomy__content-note {
    font-size: 15px;
  }

  .kovalchuk-project-anatomy__content-copy {
    padding-top: 0;
  }
}