:root {
  color-scheme: light;
  --paper: #fbfbf8;
  --paper-soft: #f1f3ee;
  --ink: #111111;
  --hairline: rgba(17, 17, 17, 0.18);
  --shadow: 0 18px 52px rgba(20, 20, 18, 0.1);
  --fast: 420ms cubic-bezier(0.22, 1, 0.36, 1);
  --slow: 900ms cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--paper);
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background:
    linear-gradient(90deg, rgba(17, 17, 17, 0.035) 1px, transparent 1px) 0 0 /
      clamp(4.5rem, 9vw, 8rem) 100%,
    radial-gradient(circle at 82% 16%, rgba(30, 132, 128, 0.08), transparent 28rem),
    var(--paper);
  color: var(--ink);
  font-family:
    "Helvetica Neue",
    Arial,
    sans-serif;
  overflow-x: hidden;
}

img {
  display: block;
}

a {
  color: inherit;
}

.site-header {
  position: fixed;
  z-index: 50;
  inset: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: clamp(1rem, 2.4vw, 1.8rem) clamp(1rem, 4vw, 3.4rem);
  pointer-events: none;
  mix-blend-mode: multiply;
}

.brand {
  pointer-events: auto;
  text-decoration: none;
  font-size: 0.74rem;
  font-weight: 750;
  letter-spacing: 0.2em;
}

.section-indicator {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.indicator-rule {
  width: clamp(2.2rem, 7vw, 6rem);
  height: 1px;
  background: var(--ink);
  opacity: 0.35;
}

.project {
  position: relative;
  min-height: 220svh;
}

.opening,
.closing {
  min-height: 140svh;
}

.project-inner {
  position: sticky;
  top: 0;
  display: grid;
  min-height: 100svh;
  overflow: clip;
  padding: clamp(5rem, 9vw, 8rem) clamp(1rem, 5vw, 5rem)
    clamp(2rem, 5vw, 4rem);
}

.project-inner::before {
  content: "";
  position: absolute;
  inset: 9vh 5vw auto auto;
  width: clamp(5rem, 13vw, 14rem);
  height: 1px;
  background: var(--hairline);
}

.project h1,
.project h2,
.folio-mark {
  position: relative;
  z-index: 5;
  margin: 0;
  letter-spacing: 0;
}

.project h1,
.project h2 {
  align-self: end;
  max-width: min(980px, calc(100vw - 2rem));
  font-size: clamp(3rem, 11vw, 10.4rem);
  font-weight: 850;
  line-height: 0.86;
  text-wrap: balance;
  transform: translateY(22px);
  opacity: 0.18;
  transition:
    opacity var(--slow),
    transform var(--slow);
}

.project.is-active h1,
.project.is-active h2 {
  opacity: 1;
  transform: translateY(0);
}

.folio-mark {
  align-self: start;
  font-size: clamp(2rem, 7vw, 6rem);
  font-weight: 850;
  line-height: 0.9;
}

.stage {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.stage::before {
  content: "";
  position: absolute;
  inset: clamp(5rem, 9vw, 8rem) clamp(1rem, 5vw, 5rem)
    clamp(6rem, 12vw, 9rem);
  background:
    linear-gradient(var(--hairline) 1px, transparent 1px) 0 0 / 100% 33.333%,
    linear-gradient(90deg, var(--hairline) 1px, transparent 1px) 0 0 / 25% 100%;
  opacity: 0.22;
}

.layer {
  position: absolute;
  left: var(--x);
  top: var(--y);
  width: var(--w);
  max-width: 92vw;
  height: auto;
  object-fit: contain;
  border: 1px solid rgba(17, 17, 17, 0.035);
  background: rgba(255, 255, 255, 0.86);
  box-shadow: var(--shadow);
  opacity: 0;
  transform:
    translate3d(0, clamp(2rem, 8vh, 5rem), 0)
    rotate(var(--r))
    scale(0.94);
  transform-origin: center;
  filter: saturate(0.92) contrast(0.98);
  transition:
    opacity var(--slow),
    transform var(--slow),
    filter var(--slow);
  will-change: transform, opacity;
}

.layer.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0) rotate(var(--r)) scale(1);
  filter: saturate(1) contrast(1);
}

.layer:nth-child(2) {
  z-index: 2;
}

.layer:nth-child(3) {
  z-index: 3;
}

.layer:nth-child(4) {
  z-index: 4;
}

.opening-inner {
  align-content: space-between;
}

.opening h1 {
  justify-self: start;
}

.closing {
  min-height: 100svh;
}

.closing-inner {
  place-content: center;
}

.closing h2 {
  align-self: center;
}

.closing-line {
  position: absolute;
  left: clamp(1rem, 5vw, 5rem);
  right: clamp(1rem, 5vw, 5rem);
  top: 50%;
  height: 1px;
  background: var(--hairline);
  transform: translateY(-50%);
}

@media (max-width: 760px) {
  body {
    background:
      radial-gradient(circle at 80% 20%, rgba(30, 132, 128, 0.08), transparent 18rem),
      var(--paper);
  }

  .site-header {
    padding: 1rem;
  }

  .section-indicator {
    gap: 0.5rem;
  }

  .indicator-rule {
    width: 2.4rem;
  }

  .project {
    min-height: 245svh;
  }

  .opening,
  .closing {
    min-height: 130svh;
  }

  .project-inner {
    padding: 4.75rem 1rem 2rem;
  }

  .project-inner::before {
    inset: 4.5rem 1rem auto auto;
    width: 4rem;
  }

  .project h1,
  .project h2 {
    max-width: calc(100vw - 2rem);
    font-size: clamp(3rem, 17vw, 5.3rem);
  }

  .folio-mark {
    font-size: clamp(2.35rem, 14vw, 4rem);
  }

  .layer {
    left: var(--mx, var(--x));
    top: var(--my, var(--y));
    width: var(--mw, var(--w));
    max-width: none;
    box-shadow: 0 14px 38px rgba(20, 20, 18, 0.1);
  }

  .stage::before {
    inset: 4.75rem 1rem 5.5rem;
    background:
      linear-gradient(var(--hairline) 1px, transparent 1px) 0 0 / 100% 33.333%,
      linear-gradient(90deg, var(--hairline) 1px, transparent 1px) 0 0 / 50% 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 1ms !important;
    animation-duration: 1ms !important;
  }
}