/* ==========================================================================
   Контур Главное — разделы страницы
   Сначала статичная раскладка, затем режим .motion (закреплённые сцены).
   ========================================================================== */

:root {
  --lvh: 1vh;
}
@supports (height: 100lvh) {
  :root {
    --lvh: 1lvh;
  }
}

@property --rx {
  syntax: '<percentage>';
  inherits: true;
  initial-value: 0%;
}

.display {
  font-family: var(--ff-display);
  font-weight: 800;
  text-transform: uppercase;
}

/* ==========================================================================
   01 · Главная
   ========================================================================== */

.hero {
  --hero-main: min(16.4vw, 25vh);
  --hero-side: min(12.3vw, 18.6vh);
  position: relative;
  display: grid;
  grid-template: 1fr auto / 1fr auto;
  gap: 0 20px;
  min-height: calc(var(--vh) * 100);
  padding: calc(var(--nav-h) + var(--safe-t)) calc(var(--pad) + var(--safe-r)) calc(var(--pad) + var(--safe-b))
    calc(var(--pad) + var(--safe-l));
}
.hero__title {
  grid-column: 1 / -1;
  align-self: center;
  display: grid;
  padding-bottom: 4vh;
  font: 800 var(--hero-side) / 0.9 var(--ff-display);
  letter-spacing: -0.045em;
  text-transform: uppercase;
}
.hero__line {
  display: block;
  white-space: nowrap;
}
.hero__word {
  display: inline-block;
  will-change: transform;
}
.hero__line--1 {
  justify-self: start;
  color: transparent;
  -webkit-text-stroke: 1.25px rgba(255, 255, 255, 0.82);
}
.hero__line--2 {
  justify-self: end;
  margin: 0.33em 0 0.3em;
  font-size: var(--hero-main);
  line-height: 0.86;
}
.hero__line--3 {
  justify-self: end;
}
.hero__lead {
  align-self: end;
  max-width: 31ch;
}
.hero__kicker {
  font: 500 clamp(0.62rem, 0.2vw + 0.56rem, 0.76rem) / 1.5 var(--ff-display);
  letter-spacing: 0.22em;
  text-transform: uppercase;
}
.hero__text {
  margin-top: 0.9em;
  color: var(--silver);
}
.hero__scroll {
  align-self: end;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  min-width: 44px;
  font: 500 0.6rem/1 var(--ff-display);
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--silver);
}
.hero__scroll-label {
  writing-mode: vertical-rl;
}
.hero__scroll-line {
  position: relative;
  width: 30px;
  height: 46px;
}
.hero__scroll-line::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  width: 1.5px;
  height: 100%;
  background: var(--white);
  transform: skewX(var(--skew));
}
.motion .hero__scroll-line::before {
  animation: scroll-hint 2.4s var(--ease-io) infinite;
}
@keyframes scroll-hint {
  0% {
    clip-path: inset(0 -20px 100% -20px);
  }
  45% {
    clip-path: inset(0 -20px 0 -20px);
  }
  100% {
    clip-path: inset(100% -20px 0 -20px);
  }
}

.motion .hero__line {
  clip-path: inset(-0.16em -1em -0.11em -1em);
  will-change: transform;
}
.motion .hero__line--1 .hero__word,
.motion .hero__line--3 .hero__word {
  transform: translateY(125%);
  transition: transform 1.25s var(--ease-out);
}
.motion .hero.is-in .hero__line--1 .hero__word {
  transform: none;
  transition-delay: 0.1s;
}
.motion .hero.is-in .hero__line--3 .hero__word {
  transform: none;
  transition-delay: 0.62s;
}
.motion .hero__line--2 .char {
  transform: translateY(125%);
  transition: transform 1.15s var(--ease-out);
  transition-delay: calc(0.24s + var(--i) * 60ms);
}
.motion .hero.is-in .hero__line--2 .char {
  transform: none;
}
.motion .hero__lead,
.motion .hero__scroll {
  opacity: 0;
}
.motion .hero.is-in .hero__lead,
.motion .hero.is-in .hero__scroll {
  animation: hero-fade 1.2s var(--ease-soft) 1.1s both;
}
.motion .hero.is-instant * {
  transition-duration: 0.01ms !important;
  transition-delay: 0s !important;
  animation-delay: 0s !important;
}
@keyframes hero-fade {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@media (min-width: 900px) {
  .hero {
    --hero-main: min(14.2vw, 24vh);
    --hero-side: min(8.3vw, 14vh);
  }
  .hero__title {
    padding-bottom: 0;
  }
  .hero__line--2 {
    justify-self: start;
    margin: 0.31em 0 0.28em 21.5vw;
  }
  .hero__line--3 {
    margin-right: 1.5vw;
  }
  .hero__scroll {
    flex-direction: row;
    gap: 18px;
  }
  .hero__scroll-label {
    writing-mode: horizontal-tb;
  }
}

/* ==========================================================================
   02 · Чем мы занимаемся
   ========================================================================== */

.services {
  position: relative;
  padding: 14vh calc(var(--pad) + var(--safe-r)) 10vh calc(var(--pad) + var(--safe-l));
}
.services__pin {
  display: grid;
  gap: 6vh;
}
.services__title {
  margin-top: 0.5em;
  font: 800 clamp(2.5rem, min(10.6vw, 7.4vh), 5.6rem) / 0.92 var(--ff-display);
  letter-spacing: -0.04em;
  text-transform: uppercase;
}
.services__lead {
  max-width: 33ch;
  margin-top: 1.3em;
  color: var(--silver);
}
.services__stage,
.services__ticks {
  display: none;
}
.services__list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 0 4vw;
  counter-reset: none;
}
.service {
  display: grid;
  grid-template-columns: 2.9em 1fr;
  align-items: baseline;
  padding: 1.15em 0;
  border-top: 1px solid var(--line);
}
.service__n {
  font: 500 0.66rem/1 var(--ff-display);
  font-feature-settings: 'tnum';
  letter-spacing: 0.14em;
  color: var(--silver-dim);
}
.service__title {
  font: 500 clamp(1.05rem, 0.5vw + 0.95rem, 1.4rem) / 1.2 var(--ff-display);
  letter-spacing: -0.012em;
}
.service__text {
  margin-top: 0.55em;
  max-width: 38ch;
  font-size: 0.95rem;
  color: var(--silver);
}

/* --- закреплённая сцена --- */
.motion .services {
  height: calc(var(--vh) * 400);
  padding: 0;
}
.motion .services__pin {
  position: sticky;
  top: 0;
  height: calc(var(--lvh) * 100);
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: calc(var(--nav-h) + var(--safe-t) + 4px) calc(var(--pad) + var(--safe-r))
    calc(var(--lvh) * 100 - var(--vh) * 100 + var(--pad) + var(--safe-b)) calc(var(--pad) + var(--safe-l));
  overflow: hidden;
}
.motion .services__stage {
  position: relative;
  display: block;
  flex: 1 1 0;
  min-height: 0;
  margin: 1.5vh 0;
}
.services__count {
  position: absolute;
  right: 0;
  bottom: 0;
  font: 800 clamp(3.4rem, 17vw, 6rem) / 0.8 var(--ff-display);
  font-feature-settings: 'tnum';
  letter-spacing: -0.05em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.3);
}
.motion .services__lead {
  display: none;
}
.motion .services__list {
  position: relative;
  display: block;
  flex: none;
  height: clamp(7.6em, 21vh, 10.5em);
}
.motion .service {
  position: absolute;
  inset: 0;
  display: block;
  padding: 0;
  border: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(14px);
  transition: opacity 0.4s var(--ease-soft), transform 0.6s var(--ease-soft), visibility 0s 0.45s;
}
.motion .service.is-active {
  opacity: 1;
  visibility: visible;
  transform: none;
  transition: opacity 0.7s var(--ease-soft) 0.18s, transform 0.9s var(--ease-out) 0.18s, visibility 0s;
}
.motion .service__n {
  display: none;
}
.motion .service__title {
  font: 800 clamp(1.5rem, 6.4vw, 2.2rem) / 1.02 var(--ff-display);
  letter-spacing: -0.03em;
  text-transform: uppercase;
}
.motion .services__pin {
  touch-action: pan-y;
}
.motion .services__stage {
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.motion .services__ticks {
  display: flex;
  align-items: center;
  gap: 5px;
  flex: none;
  margin: 6px -8px 0;
}
.services__tick {
  flex: 1;
  height: 44px;
  padding: 21px 0;
  background: rgba(255, 255, 255, 0.2);
  background-clip: content-box;
}
.services__tick i {
  display: block;
  height: 100%;
  background: var(--white);
  transform-origin: 0 50%;
  transform: scaleX(var(--t, 0));
}
.services__arrow {
  position: relative;
  flex: none;
  width: 44px;
  height: 44px;
}
.services__arrow::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  width: 10px;
  height: 10px;
  margin: -5px 0 0 -7px;
  border-top: 1.5px solid var(--white);
  border-right: 1.5px solid var(--white);
  transform: rotate(45deg);
}
.services__arrow--prev::before {
  margin-left: -3px;
  transform: rotate(-135deg);
}

@media (min-height: 760px) and (max-width: 899px) {
  .motion .services__lead {
    display: block;
    font-size: 0.92rem;
  }
}

@media (min-width: 900px) {
  .services__pin {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 6vw;
  }
  .motion .services {
    height: calc(var(--vh) * 540);
  }
  .motion .services__pin {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    grid-template-rows: minmax(0, 1fr);
    column-gap: 2vw;
  }
  .motion .services__head {
    position: relative;
    z-index: 1;
    grid-column: 1 / span 5;
    grid-row: 1;
    align-self: start;
    padding-top: 3vh;
  }
  .motion .services__lead {
    display: block;
  }
  .motion .services__title {
    font-size: clamp(2.2rem, min(4.25vw, 8vh), 5rem);
  }
  .motion .services__stage {
    grid-column: 4 / span 5;
    grid-row: 1;
    margin: 0;
  }
  .services__count {
    left: 0;
    right: auto;
    bottom: 1vh;
    font-size: clamp(5rem, 11vw, 12rem);
  }
  .motion .services__list {
    grid-column: 9 / span 4;
    grid-row: 1;
    align-self: center;
    height: auto;
  }
  .motion .service {
    position: relative;
    inset: auto;
    display: grid;
    grid-template-columns: 2.9em 1fr;
    padding: clamp(0.5em, 1.35vh, 0.95em) 0;
    border-top: 1px solid var(--line);
    opacity: 1;
    visibility: visible;
    transform: none;
    color: var(--silver-dim);
    transition: color 0.45s;
  }
  .motion .service:last-child {
    border-bottom: 1px solid var(--line);
  }
  .motion .service.is-active {
    color: var(--white);
    transition: color 0.45s;
  }
  .motion .service__n {
    display: block;
    color: inherit;
  }
  .motion .service__title {
    font: 500 clamp(0.98rem, 1.22vw, 1.36rem) / 1.2 var(--ff-display);
    letter-spacing: -0.012em;
    text-transform: none;
  }
  .motion .service__body {
    display: grid;
    grid-template-rows: auto 0fr;
    transition: grid-template-rows 0.8s var(--ease-io);
  }
  .motion .service.is-active .service__body {
    grid-template-rows: auto 1fr;
  }
  .motion .service__text {
    min-height: 0;
    margin: 0;
    overflow: hidden;
    font-size: clamp(0.84rem, 0.95vw, 0.98rem);
    opacity: 0;
    transition: opacity 0.4s;
  }
  .motion .service__text::before {
    content: '';
    display: block;
    height: 0.6em;
  }
  .motion .service.is-active .service__text {
    opacity: 1;
    transition: opacity 0.6s 0.2s;
  }
  .motion .services__ticks {
    display: none;
  }
  @media (hover: hover) {
    .motion .service:hover {
      color: var(--silver);
    }
    .motion .service.is-active:hover {
      color: var(--white);
    }
  }
}

/* ==========================================================================
   03 · Избранные проекты
   ========================================================================== */

.works {
  position: relative;
  padding: 16vh 0 12vh;
}
.works__intro {
  padding: 0 calc(var(--pad) + var(--safe-r)) 0 calc(var(--pad) + var(--safe-l));
}
.works__title {
  max-width: 11em;
  margin-top: 0.5em;
  font: 800 clamp(2.4rem, min(10.4vw, 8vh), 6.2rem) / 0.92 var(--ff-display);
  letter-spacing: -0.04em;
  text-transform: uppercase;
}
.works__note {
  max-width: 40ch;
  margin-top: 1.5em;
  font-size: 0.88rem;
  color: var(--silver-dim);
}
.works__rail {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-top: 7vh;
  padding: 4px calc(var(--pad) + var(--safe-r)) 8px calc(var(--pad) + var(--safe-l));
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  scroll-padding-inline: calc(var(--pad) + var(--safe-l));
  overscroll-behavior-x: contain;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  outline-offset: -4px;
}
.works__rail::-webkit-scrollbar {
  display: none;
}
.work {
  flex: none;
  width: min(80vw, 420px);
  scroll-snap-align: start;
}
.work__link {
  display: block;
}
.work__media {
  --r: 65.5%;
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--graphite);
}
.work--tall .work__media {
  --r: 81.9%;
  aspect-ratio: 4 / 5;
}
.work--wide .work__media {
  --r: 41%;
  aspect-ratio: 16 / 10;
}
.work--land .work__media {
  --r: 43.7%;
  aspect-ratio: 3 / 2;
}
.work__art {
  position: absolute;
  inset: 0 -6%;
  will-change: transform;
}
.work__art svg {
  width: 100%;
  height: 100%;
  transition: transform 1.3s var(--ease-out);
}
.work__frame {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: visible;
}
.work__frame path {
  fill: none;
  stroke: var(--white);
  stroke-width: 1.5;
  vector-effect: non-scaling-stroke;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  transition: stroke-dashoffset 1.1s var(--ease-io);
}
.work.is-current .work__frame path,
.work__link:focus-visible .work__frame path {
  stroke-dashoffset: 0;
}
.work__meta {
  position: relative;
  padding-top: 1.1rem;
}
.work__cat {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  font: 500 0.62rem/1.3 var(--ff-display);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--silver);
}
.work__tag {
  position: relative;
  z-index: 0;
  padding: 5px 9px 4px;
  letter-spacing: 0.16em;
  color: var(--white);
}
.work__tag::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 6px 2px 6px 2px;
  transform: skewX(-18deg);
}
.work__title {
  margin-top: 0.22em;
  font: 800 clamp(2.9rem, 15vw, 4.6rem) / 0.92 var(--ff-display);
  letter-spacing: -0.05em;
  text-transform: uppercase;
}
.work__desc {
  max-width: 34ch;
  margin-top: 0.8em;
  font-size: 0.95rem;
  color: var(--silver);
}
.work__more {
  position: relative;
  display: inline-block;
  margin-top: 1.2em;
  padding-bottom: 7px;
  font: 500 0.66rem/1 var(--ff-display);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.work__more::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1.5px;
  background: currentColor;
  transform-origin: 100% 50%;
  transition: transform 0.6s var(--ease-out);
}
.works__hud {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 4vh;
  padding: 0 calc(var(--pad) + var(--safe-r)) 0 calc(var(--pad) + var(--safe-l));
  font: 500 0.64rem/1 var(--ff-display);
  font-feature-settings: 'tnum';
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
html:not(.js) .works__hud {
  display: none;
}
.works__hud-bar {
  position: relative;
  flex: 0 1 120px;
  height: 1px;
  background: rgba(255, 255, 255, 0.22);
}
.works__hud-bar i {
  position: absolute;
  inset: -0.5px 0;
  background: var(--white);
  transform-origin: 0 50%;
  transform: scaleX(var(--p, 0));
}
.works__hud-total {
  opacity: 0.45;
}
.works__hud-hint {
  margin-left: auto;
  letter-spacing: 0.2em;
  color: var(--silver-dim);
}
.works__outro {
  display: grid;
  justify-items: start;
  gap: 28px;
  margin-top: 9vh;
  padding: 0 calc(var(--pad) + var(--safe-r)) 0 calc(var(--pad) + var(--safe-l));
}
.works__outro-text {
  max-width: 13em;
  font: 800 clamp(1.7rem, 6.6vw, 3.6rem) / 0.98 var(--ff-display);
  letter-spacing: -0.035em;
  text-transform: uppercase;
}
.works__outro .btn {
  margin-left: calc(var(--btn-h) * 0.33);
}

/* маска появления обложек */
.motion .work__media {
  clip-path: polygon(0 0, var(--rx) 0, calc(var(--rx) - var(--r)) 100%, 0 100%);
  transition: --rx 1.5s var(--ease-out);
}
.motion .work.is-in .work__media {
  --rx: calc(100% + var(--r));
}
.motion .work:not(.is-in) .work__art svg {
  transform: scale(1.16);
}
.motion .work__meta > * {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.7s, transform 0.9s var(--ease-out);
}
.motion .work.is-in .work__meta > * {
  opacity: 1;
  transform: none;
  transition-delay: calc(0.25s + var(--j, 0) * 70ms);
}
.work__meta > :nth-child(2) {
  --j: 1;
}
.work__meta > :nth-child(3) {
  --j: 2;
}
.work__meta > :nth-child(4) {
  --j: 3;
}

@media (hover: hover) and (pointer: fine) {
  .work__link:hover .work__art svg {
    transform: scale(1.045);
  }
  .work__link:hover .work__frame path {
    stroke-dashoffset: 0;
  }
  .work__link:hover .work__more::after {
    transform: scaleX(0.35);
  }
}

@media (min-width: 900px) {
  .works__hud-hint {
    display: none;
  }
  .work {
    width: auto;
  }
  .work .work__media {
    width: clamp(260px, min(27vw, 46vh), 480px);
  }
  .work--tall .work__media {
    width: clamp(240px, min(25vw, 43vh), 440px);
  }
  .work--wide .work__media {
    width: clamp(380px, min(43vw, 82vh), 800px);
  }
  .work--land .work__media {
    width: clamp(340px, min(35vw, 70vh), 640px);
  }
  .work__meta {
    max-width: min(100%, 30rem);
  }
  .work__title {
    margin-top: -0.52em;
    margin-left: -0.05em;
    font-size: clamp(3rem, min(6.4vw, 12vh), 7.2rem);
    mix-blend-mode: difference;
  }
  .work__link {
    position: relative;
  }
  .work__meta {
    position: static;
    padding-top: 0;
  }
  .work__cat {
    position: absolute;
    left: 0;
    bottom: calc(100% + 14px);
  }
  .work__media {
    margin-bottom: 0;
  }

  /* --- горизонтальная галерея, которой управляет вертикальная прокрутка --- */
  .motion .works {
    padding: 0;
  }
  .motion .works__pin {
    position: sticky;
    top: 0;
    height: calc(var(--lvh) * 100);
    overflow: hidden;
  }
  .motion .works__track {
    display: flex;
    align-items: center;
    width: max-content;
    height: calc(var(--vh) * 100);
    padding: calc(var(--nav-h) + var(--safe-t)) 0 0 calc(var(--pad) + var(--safe-l));
    will-change: transform;
  }
  .motion .works__intro {
    flex: none;
    width: min(50vw, 800px);
    padding: 0 5vw 6vh 0;
  }
  .motion .works__title {
    font-size: clamp(2.6rem, min(5.5vw, 10.5vh), 6.2rem);
  }
  .motion .works__rail {
    flex: none;
    align-items: center;
    gap: clamp(56px, 8vw, 160px);
    height: 100%;
    margin: 0;
    padding: 0 6vw 0 2vw;
    overflow: visible;
    scroll-snap-type: none;
  }
  .motion .work {
    position: relative;
    margin-top: -6vh;
  }
  .motion .work--low {
    margin-top: 10vh;
  }
  .motion .work--tall:first-child {
    margin-top: -2vh;
  }
  .motion .works__outro {
    flex: none;
    width: 62vw;
    margin: 0;
    padding: 0 8vw 4vh 4vw;
  }
  .motion .works__outro-text {
    font-size: clamp(2rem, min(4.2vw, 8vh), 4.6rem);
  }
  .motion .works__hud {
    position: absolute;
    left: calc(var(--pad) + var(--safe-l));
    bottom: calc(var(--lvh) * 100 - var(--vh) * 100 + var(--pad) * 0.7 + var(--safe-b));
    margin: 0;
    padding: 0;
    width: 220px;
  }
}

/* ==========================================================================
   04 · Наш подход
   ========================================================================== */

.approach {
  position: relative;
  padding: 16vh calc(var(--pad) + var(--safe-r)) 16vh calc(var(--pad) + var(--safe-l));
}
.approach__noise,
.approach__frame {
  display: none;
}
.approach__title {
  margin-top: 0.6em;
}
.approach__a {
  display: block;
  font: 800 clamp(1.5rem, 5.6vw, 4.4rem) / 1 var(--ff-display);
  letter-spacing: -0.035em;
  text-transform: uppercase;
  color: transparent;
  -webkit-text-stroke: 1.25px rgba(255, 255, 255, 0.75);
}
.approach__b {
  display: block;
  margin-top: 0.14em;
  font: 800 min(15.2vw, 23vh) / 0.87 var(--ff-display);
  letter-spacing: -0.05em;
  text-transform: uppercase;
}
.approach__row {
  display: block;
  white-space: nowrap;
}
.approach__w {
  display: inline-block;
}
.approach__dot {
  display: inline-block;
  width: 0.17em;
  height: 0.17em;
  margin-left: 0.045em;
  background: var(--white);
}
.approach__text {
  max-width: 36ch;
  margin-top: 2.2em;
  font: 500 clamp(1.02rem, 1.5vw, 1.4rem) / 1.35 var(--ff-display);
  letter-spacing: -0.01em;
  color: #d5d6d9;
}

.motion .approach {
  height: calc(var(--vh) * 380);
  padding: 0;
}
.motion .approach__pin {
  position: sticky;
  top: 0;
  height: calc(var(--lvh) * 100);
  overflow: hidden;
}
.motion .approach__label {
  position: absolute;
  left: calc(var(--pad) + var(--safe-l));
  top: calc(var(--nav-h) + var(--safe-t) + 1vh);
  z-index: 3;
}
.motion .approach__noise {
  position: absolute;
  inset: 0 0 calc(var(--lvh) * 100 - var(--vh) * 100) 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: calc(var(--nav-h) + 3vh) 0 3vh;
}
.approach__noise-row {
  white-space: nowrap;
  font: 800 min(16vh, 22vw) / 0.9 var(--ff-display);
  letter-spacing: -0.04em;
  text-transform: uppercase;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.2);
  will-change: transform, opacity;
}
.motion .approach__title {
  position: absolute;
  inset: 0 0 calc(var(--lvh) * 100 - var(--vh) * 100) 0;
  z-index: 2;
  margin: 0;
}
.motion .approach__a {
  position: absolute;
  left: calc(var(--pad) + var(--safe-l));
  right: calc(var(--pad) + var(--safe-r));
  top: 50%;
  font-size: min(9.6vw, 13vh);
  line-height: 0.95;
  color: var(--white);
  -webkit-text-stroke: 0;
  transform-origin: 0 0;
  will-change: transform;
}
.motion .approach__b {
  position: absolute;
  left: calc(var(--pad) + var(--safe-l));
  right: calc(var(--pad) + var(--safe-r));
  top: 54%;
  margin: 0;
  transform: translateY(-50%);
}
/* маска — через overflow: clip-path изолировал бы наложение букв на белую точку */
.motion .approach__row:not(.approach__row--key),
.motion .approach__mask {
  overflow: hidden;
  padding: 0.2em 0.1em 0.04em;
  margin: -0.2em -0.1em -0.04em;
}
.motion .approach__mask {
  display: inline-block;
  vertical-align: top;
}
.motion .approach__row:nth-child(2) {
  padding-left: 16vw;
}
.motion .approach__w {
  /* над белой точкой буквы становятся чёрными */
  mix-blend-mode: difference;
  will-change: transform;
}
.motion .approach__dot {
  position: relative;
  z-index: -1;
  transform: scale(0);
  will-change: transform;
}
.motion .approach__a {
  z-index: 2;
}
.motion .approach__a .char {
  opacity: 0;
}
.motion .approach.is-inverted .approach__a {
  color: var(--black);
}
.motion .approach__text {
  position: absolute;
  right: calc(var(--pad) + var(--safe-r));
  bottom: calc(var(--lvh) * 100 - var(--vh) * 100 + var(--pad) + var(--safe-b));
  z-index: 3;
  max-width: min(34ch, 70vw);
  margin: 0;
  opacity: 0;
}
.motion .approach__frame {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: block;
  pointer-events: none;
}
.approach__frame svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
}
.approach__frame path {
  fill: none;
  stroke: var(--white);
  stroke-width: 2;
  stroke-linejoin: round;
}
.motion .approach.is-inverted .approach__text,
.motion .approach.is-inverted .approach__label,
.motion .approach.is-inverted .approach__label .label__n {
  color: var(--black);
}
.motion .approach.is-inverted .approach__frame path {
  stroke: var(--black);
}

@media (min-width: 900px) {
  .approach__b {
    font-size: min(15vw, 24.5vh);
  }
  .motion .approach {
    height: calc(var(--vh) * 520);
  }
  .motion .approach__b {
    top: 57.5%;
  }
  .motion .approach__row:nth-child(2) {
    padding-left: 24vw;
  }
  /* пояснение встаёт в отступ второй строки */
  .motion .approach__text {
    left: calc(var(--pad) + var(--safe-l));
    right: auto;
    top: 57.5%;
    bottom: auto;
    width: 19vw;
    max-width: none;
    font-size: clamp(0.86rem, 1.05vw, 1.12rem);
    transform: translateY(-50%);
  }
}

/* ==========================================================================
   05 · Почему мы — белый раздел
   ========================================================================== */

.why {
  --inv: #fff;
  --fg: #000;
  position: relative;
  z-index: 2;
  background: var(--white);
  color: var(--black);
  padding: 16vh calc(var(--pad) + var(--safe-r)) 12vh calc(var(--pad) + var(--safe-l));
}
.why .label {
  color: rgba(0, 0, 0, 0.55);
}
.why__title {
  margin: 0.45em 0 1.1em -0.04em;
  font: 800 clamp(2.2rem, min(9.6vw, 12vh), 9rem) / 0.9 var(--ff-display);
  letter-spacing: -0.05em;
  text-transform: uppercase;
}
.why__quiet,
.why__loud {
  display: block;
}
.why__quiet {
  color: transparent;
  -webkit-text-stroke: 1.25px rgba(0, 0, 0, 0.42);
}
.why__list {
  border-top: 1px solid rgba(0, 0, 0, 0.16);
}
.principle {
  position: relative;
  display: grid;
  gap: 0.7em;
  padding: clamp(20px, 3vw, 40px) 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.16);
}
.principle__title {
  font: 800 clamp(1.45rem, 3.5vw, 3.7rem) / 1 var(--ff-display);
  letter-spacing: -0.035em;
  text-transform: uppercase;
}
.principle__text {
  max-width: 36ch;
  color: rgba(0, 0, 0, 0.72);
}
.principle__mark {
  position: absolute;
  left: 0;
  top: clamp(20px, 3vw, 40px);
  width: clamp(26px, 4.4vw, 70px);
  height: clamp(1.45rem, 3.5vw, 3.7rem);
  overflow: visible;
  pointer-events: none;
}
.principle__mark path {
  fill: none;
  stroke: var(--black);
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  transition: stroke-dashoffset 0.5s var(--ease-io);
}

/* фокус: заметен тот принцип, на который смотрят */
.js .principle__title {
  color: transparent;
  -webkit-text-stroke: 1px rgba(0, 0, 0, 0.42);
  transition: color 0.45s, -webkit-text-stroke-color 0.45s, transform 0.7s var(--ease-out);
}
.js .principle__text {
  opacity: 0.4;
  transition: opacity 0.5s, transform 0.7s var(--ease-out);
}
.js .principle.is-focus .principle__title {
  color: var(--black);
  -webkit-text-stroke-color: var(--black);
  transform: translateX(clamp(40px, 6.4vw, 104px));
}
.js .principle.is-focus .principle__text {
  opacity: 1;
  transform: translateX(clamp(40px, 6.4vw, 104px));
}
@media (max-width: 899px) {
  .js .principle__title,
  .js .principle__text {
    margin-right: clamp(40px, 6.4vw, 104px);
  }
}
.js .principle.is-focus .principle__mark path {
  stroke-dashoffset: 0;
  transition: stroke-dashoffset 0.8s var(--ease-io) 0.1s;
}

@media (min-width: 900px) {
  .principle {
    grid-template-columns: minmax(0, 1fr) minmax(0, 30ch);
    gap: 4vw;
    align-items: center;
  }
  .js .principle.is-focus .principle__text {
    transform: none;
  }
  .principle__title {
    padding-right: clamp(40px, 6.4vw, 104px);
  }
  .js .principle__text {
    opacity: 0;
    transform: translateY(8px);
  }
  .principle__mark {
    top: 50%;
    margin-top: calc(clamp(1.45rem, 3.5vw, 3.7rem) * -0.5);
  }
}

/* --- «сочный» фокус: заметный пункт становится чёрной полосой с наклонным краем --- */
.why__mark {
  position: relative;
  z-index: 0;
  display: inline-block;
  padding: 0 0.16em 0 0.12em;
  margin-left: 0.2em;
  white-space: nowrap;
}
.why__mark::before {
  content: '';
  position: absolute;
  inset: 0.02em -0.04em 0.02em 0;
  z-index: -1;
  background: var(--black);
  border-radius: 0.14em 0.05em 0.14em 0.05em;
  transform: skewX(var(--skew));
  transform-origin: 0 50%;
}
.why__mark span {
  color: var(--white);
}
.motion .why__mark::before {
  transform: skewX(var(--skew)) scaleX(0);
  transition: transform 0.9s var(--ease-io) 0.35s;
}
.motion .why__mark span {
  color: var(--black);
  transition: color 0.3s 0.75s;
}
.motion .why__loud.is-in .why__mark::before {
  transform: skewX(var(--skew)) scaleX(1);
}
.motion .why__loud.is-in .why__mark span {
  color: var(--white);
}

.principle {
  margin-inline: calc(-1 * var(--pad));
  padding-inline: var(--pad);
  overflow: hidden;
}
.principle__title {
  font-size: clamp(1.6rem, 4.3vw, 4.6rem);
}
.principle__mark {
  left: var(--pad);
  height: clamp(1.6rem, 4.3vw, 4.6rem);
}
.principle > * {
  position: relative;
  z-index: 1;
}
.principle > .principle__mark {
  position: absolute;
}
.js .principle::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: -30%;
  right: -30%;
  z-index: 0;
  background: var(--black);
  transform: translateX(-104%) skewX(var(--skew));
  transition: transform 0.75s var(--ease-io);
  will-change: transform;
}
.js .principle.is-focus::before {
  transform: translateX(0) skewX(var(--skew));
}
.js .principle.is-focus .principle__title {
  color: var(--white);
  -webkit-text-stroke-color: var(--white);
  transition-delay: 0.18s;
}
.js .principle.is-focus .principle__text {
  color: rgba(255, 255, 255, 0.82);
  transition-delay: 0.22s;
}
.js .principle.is-focus .principle__mark path {
  stroke: var(--white);
  transition-delay: 0.3s;
}
.js .principle__text {
  transition: opacity 0.5s, transform 0.7s var(--ease-out), color 0.4s;
}
@media (min-width: 900px) {
  .principle {
    padding-block: clamp(26px, 3.6vw, 56px);
  }
  .principle__mark {
    margin-top: calc(clamp(1.6rem, 4.3vw, 4.6rem) * -0.5);
  }
}

/* ==========================================================================
   06 · Контакты
   ========================================================================== */

.contact {
  position: relative;
  z-index: 2;
  background: var(--black);
}
.contact__pin {
  position: relative;
  display: grid;
  align-items: center;
  min-height: calc(var(--vh) * 100);
  padding: calc(var(--nav-h) + var(--safe-t) + 4vh) calc(var(--pad) + var(--safe-r)) 10vh calc(var(--pad) + var(--safe-l));
  overflow: hidden;
}
.contact__curtain {
  display: none;
}
.contact__echo {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.contact__echo svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}
.contact__echo path {
  fill: none;
  stroke: var(--white);
  stroke-linejoin: round;
}
.contact__body {
  position: relative;
  z-index: 2;
}
.contact__title {
  display: flex;
  flex-wrap: wrap;
  gap: 0 0.22em;
  margin: 0.3em 0 0 -0.05em;
  font: 800 min(27.4vw, 26vh) / 0.84 var(--ff-display);
  letter-spacing: -0.055em;
  text-transform: uppercase;
}
.contact__word {
  display: block;
  white-space: nowrap;
}
.contact__lead {
  margin-top: 1.1em;
  font: 500 clamp(1.15rem, 2.5vw, 2.3rem) / 1.2 var(--ff-display);
  letter-spacing: -0.015em;
}
.contact__cta {
  margin-top: clamp(28px, 5vh, 64px);
  margin-left: calc(var(--btn-h) * 0.33);
}
.contact__channels {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 36px;
  margin-top: clamp(28px, 5vh, 56px);
  font: 500 clamp(0.95rem, 1.2vw, 1.15rem) / 1.3 var(--ff-display);
}
.contact__channels:empty {
  display: none;
}
.contact__channels span {
  display: block;
  margin-bottom: 6px;
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--silver);
}
.contact__channels a {
  border-bottom: 1px solid currentColor;
}
.contact__channels .is-placeholder {
  font-size: 0.66rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--silver-dim);
}

.motion .contact {
  height: calc(var(--vh) * 195);
  background: var(--white);
}
.motion .contact__pin {
  position: sticky;
  top: 0;
  height: calc(var(--lvh) * 100);
  min-height: 0;
  padding-bottom: calc(var(--lvh) * 100 - var(--vh) * 100 + 8vh);
}
.motion .contact__curtain {
  position: absolute;
  top: 0;
  bottom: 0;
  left: -40vh;
  right: -40vh;
  display: block;
  background: var(--black);
  transform: translateX(118%) skewX(var(--skew));
  will-change: transform;
}
.motion .contact__body {
  mix-blend-mode: difference;
}
/* эхо-контуры лежат поверх: на белых буквах белая линия не видна */
.motion .contact__echo {
  z-index: 3;
}
.motion .contact__word {
  clip-path: inset(-0.16em -0.2em -0.06em -0.2em);
}
.motion .contact__word .char {
  transform: translateY(112%);
}
.motion .contact__label,
.motion .contact__lead,
.motion .contact__cta,
.motion .contact__channels {
  opacity: 0;
}

@media (min-width: 900px) {
  .contact__title {
    font-size: min(16.6vw, 40vh);
  }
  .contact__body {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: end;
    gap: 0 4vw;
  }
  .contact__label,
  .contact__title,
  .contact__channels {
    grid-column: 1 / -1;
  }
  .contact__lead {
    margin-top: 0.9em;
  }
  .contact__cta {
    margin-top: 0;
    margin-right: calc(var(--btn-h) * 0.4);
  }
}

/* ==========================================================================
   Подвал
   ========================================================================== */

.footer {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 22px 24px;
  padding: clamp(28px, 5vh, 56px) calc(var(--pad) + var(--safe-r)) calc(clamp(20px, 3vh, 36px) + var(--safe-b))
    calc(var(--pad) + var(--safe-l));
  background: var(--black);
  border-top: 1px solid var(--line);
  font: 500 0.64rem/1.5 var(--ff-display);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--silver);
}
.footer__logo {
  display: block;
  width: clamp(150px, 15vw, 220px);
  color: var(--white);
}
.footer__logo .logo {
  width: 100%;
  height: auto;
}
.footer__about {
  grid-column: 1 / -1;
  max-width: 24em;
}
.footer__nav {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 26px;
}
.footer__nav a,
.footer__top {
  padding: 10px 0;
  color: var(--white);
}
.footer__top {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  grid-row: 1;
  grid-column: 2;
  align-self: start;
}
.footer__top i {
  position: relative;
  width: 14px;
  height: 22px;
}
.footer__top i::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  width: 1.5px;
  height: 100%;
  background: currentColor;
  transform: skewX(var(--skew));
  transition: transform 0.5s var(--ease-out);
}
.footer__copy {
  grid-column: 1 / -1;
  color: var(--silver-dim);
}
@media (hover: hover) {
  .footer__nav a:hover {
    color: var(--silver);
  }
  .footer__top:hover i::before {
    transform: skewX(var(--skew)) translateY(-5px);
  }
}
@media (min-width: 900px) {
  .footer {
    grid-template-columns: auto 1fr auto auto;
    gap: 20px 5vw;
  }
  .footer__about,
  .footer__nav,
  .footer__copy,
  .footer__top {
    grid-column: auto;
    grid-row: auto;
    align-self: end;
  }
  .footer__nav {
    justify-self: end;
  }
  .footer__copy {
    grid-column: 2 / span 2;
    grid-row: 2;
  }
}

/* ==========================================================================
   Иллюстрации к демонстрационным концептам
   ========================================================================== */

.art {
  display: block;
  background: #0d0d0e;
}
.art text {
  font-family: var(--ff-display);
  font-weight: 800;
  text-transform: uppercase;
}

/* ==========================================================================
   Без анимаций: спокойные проявления вместо движения
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }
  .menu__bg,
  .project::before,
  .brief__panel,
  .menu__label {
    transition-duration: 0.01ms !important;
  }
}

/* ==========================================================================
   Стекло в разделах
   ========================================================================== */

/* услуги (телефон): панель навигации */
.motion .services__ticks {
  margin: 8px -6px 0;
  padding: 0 4px;
  border-radius: 999px;
}
.services__tick {
  background-color: rgba(255, 255, 255, 0.24);
}

/* услуги (десктоп): активная услуга лежит на стеклянной плашке */
@media (min-width: 900px) {
  .motion .service {
    padding-inline: 16px;
    border-top-color: transparent;
    border-radius: 18px 7px 18px 7px;
    border: 1px solid transparent;
    transition: color 0.45s, background-color 0.5s, border-color 0.5s, box-shadow 0.5s;
  }
  .motion .service:last-child {
    border-bottom-color: transparent;
  }
  .motion .service.is-active {
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--glass-line);
    box-shadow: var(--glass-shadow);
    -webkit-backdrop-filter: var(--glass-filter);
    backdrop-filter: var(--glass-filter);
    transition: color 0.45s, background-color 0.5s, border-color 0.5s, box-shadow 0.5s;
  }
}

/* проекты: индикатор и метка «Концепт» */
.works__hud {
  width: auto;
  margin-inline: calc(var(--pad) + var(--safe-l)) calc(var(--pad) + var(--safe-r));
  padding: 12px 18px;
  border-radius: 999px;
}
@media (min-width: 900px) {
  .motion .works__hud {
    width: 250px;
    margin: 0;
    padding: 12px 18px;
  }
}
.work__tag::before {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--glass-line);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.35);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  backdrop-filter: blur(12px) saturate(160%);
}