:root {
  font-family: Arial, Helvetica, sans-serif;
  color: #11110f;
  background: #f7f7f3;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html, body, #root { margin: 0; width: 100%; height: 100%; overflow: hidden; }
button { font: inherit; }

.app {
  width: 100%; height: 100%; display: grid;
  grid-template-columns: 31% 69%; background: #f8f8f4;
}

.sidebar {
  position: relative; z-index: 100; height: 100%; padding: 5.9vh 6.15%;
  border-right: 1px solid #d5d5cf; background: rgba(249,249,245,.97);
  display: flex; flex-direction: column;
}
.sidebar h1 {
  margin: 0; font-size: clamp(32px, 3.05vw, 56px); line-height: .79;
  letter-spacing: -.075em; font-weight: 500;
}
.sidebar p {
  margin: 4.7vh 0 0; color: #73736d; font-family: Georgia, 'Times New Roman', serif;
  font-style: italic; font-size: clamp(14px, 1.22vw, 23px); line-height: 1.88;
}
.controls { margin-top: auto; margin-bottom: 5.1vh; }
.rule { height: 1px; background: #d8d8d2; margin-bottom: 4.2vh; }
.eyebrow { display: block; margin-bottom: 2.4vh; font-size: 10px; font-weight: 700; letter-spacing: .42em; color: #676761; }
.sidebar button {
  width: 100%; height: 9.1vh; min-height: 70px; margin: 0 0 2vh; padding: 0 5.8%;
  display: flex; align-items: center; gap: 24px; border: 1px solid #1e1e1b;
  background: transparent; color: #181816; cursor: pointer;
  transition: background .26s ease, color .26s ease, transform .2s ease;
}
.sidebar button:hover { transform: translateX(3px); }
.sidebar button.active { background: #111; color: #fff; }
.sidebar button svg { width: 25px; height: 25px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.sidebar button span { font-size: 11px; font-weight: 700; letter-spacing: .34em; }
.sidebar small { font-size: 9px; letter-spacing: .3em; color: #aaa9a2; }

.stage { position: relative; overflow: hidden; min-width: 0; perspective: 1500px; }
.card-space {
  --hover-pull-x: clamp(120px, 12vw, 190px);
  --hover-pull-y: -7.5vh;
  --hover-pull-rotate: 13deg;
  position: absolute; inset: 0;
}

.archive-card {
  --accent: #df5b50;
  width: clamp(270px, 22.8vw, 445px); aspect-ratio: .79;
  padding: 2.8% 4.4% 4%; background: #f8f8f4; border: 1px solid #d9d9d3;
  box-shadow: 8px 16px 24px rgba(0,0,0,.13); user-select: none; cursor: default;
  transform-origin: center; transition: transform .62s cubic-bezier(.22,.78,.2,1), box-shadow .45s ease, opacity .45s ease;
}
.archive-card:hover { box-shadow: 10px 19px 29px rgba(0,0,0,.16); }
.archive-card::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 6.2%; background: #111; }
.card-top { display: flex; justify-content: space-between; padding-left: 1.5%; font-family: Georgia, serif; font-size: 7px; }
.archive-card h2 { margin: 2.5% 0 4%; text-align: center; font-family: Georgia, 'Times New Roman', serif; font-weight: 500; font-size: clamp(26px, 2.75vw, 52px); line-height: .76; letter-spacing: -.06em; }
.art-frame { height: 64%; margin-left: 4%; border: clamp(8px, .85vw, 16px) solid var(--accent); overflow: hidden; background: var(--accent); }
.art-frame img { width: 100%; height: 100%; object-fit: cover; display: block; filter: saturate(.92) contrast(1.03); }
.card-meta { display: flex; align-items: end; justify-content: space-between; margin: 2.6% 0 0 4%; }
.card-meta strong { font-size: 8px; letter-spacing: .18em; }
.card-meta em { font: italic 10px Georgia, serif; }

.mode-layered .layer-slot {
  --layer-spread-x: 0px;
  --layer-spread-y: 0px;
  position: absolute; left: 3.6vw; top: 22vh;
  width: clamp(270px, 22.8vw, 445px); aspect-ratio: .79;
  transform: translate3d(
    calc(var(--i) * 2.08vw + var(--layer-spread-x)),
    calc(var(--i) * -0.83vh + var(--layer-spread-y)),
    calc(var(--i) * -2px)
  ) rotateY(-1.5deg);
  transform-style: preserve-3d;
  transition: transform .72s cubic-bezier(.2,.8,.2,1);
}
.mode-layered .layer-slot:has(~ .layer-slot:hover) {
  --layer-spread-x: -12px;
  --layer-spread-y: 4px;
}
.mode-layered .layer-slot:hover ~ .layer-slot {
  --layer-spread-x: 7px;
  --layer-spread-y: -3px;
}
.mode-layered .layer-slot .archive-card {
  position: absolute; inset: 0; width: 100%;
  transition: transform .72s cubic-bezier(.2,.8,.2,1), box-shadow .45s ease;
  transform: translate3d(0, 0, 0) rotateZ(0deg);
}
.mode-layered .layer-slot:hover .archive-card {
  transform: translate3d(var(--hover-pull-x), var(--hover-pull-y), 0) rotateZ(var(--hover-pull-rotate));
  box-shadow: 10px 19px 29px rgba(0,0,0,.16);
}

.mode-orbit .orbit-slot {
  position: absolute; left: 51%; top: 50%; width: clamp(235px, 18.5vw, 355px); aspect-ratio: .79;
  transform-style: preserve-3d;
  transition: transform .56s cubic-bezier(.2,.8,.2,1);
  outline: none; touch-action: none; cursor: grab;
}
.mode-orbit .orbit-slot.is-dragging { transition: none; }
.mode-orbit .orbit-slot:hover { z-index: 100 !important; }
.mode-orbit .orbit-slot .archive-card {
  position: absolute; inset: 0; width: 100%;
  transition: transform .56s cubic-bezier(.2,.8,.2,1), box-shadow .38s ease;
  cursor: zoom-in;
}
.mode-orbit .orbit-slot.is-hovered .archive-card,
.mode-orbit .orbit-slot:hover .archive-card {
  transform: rotate(var(--orbit-counter-rotation)) scale(1.16);
  box-shadow: 16px 26px 42px rgba(0,0,0,.24);
  cursor: default;
}
.mode-orbit .orbit-slot:focus-visible .archive-card {
  outline: 2px solid #111;
  outline-offset: 5px;
}
.mode-orbit .orbit-slot.is-dragging .archive-card { cursor: grabbing; }
.orbit-hint { position: absolute; bottom: 3.7vh; left: 0; right: 0; text-align: center; font-size: 9px; letter-spacing: .36em; color: #77766f; }

.mode-archive .stage { overflow: hidden; }
.archive-scroller { position: absolute; inset: 0; overflow-y: auto; scrollbar-width: none; overscroll-behavior: contain; scroll-behavior: auto; }
.archive-scroller::-webkit-scrollbar { width: 0; height: 0; }
.archive-grid { padding: 5vh 5.2vw 10vh 4.6vw; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6vh 4vw; align-items: start; }
.archive-grid .archive-card { position: relative; width: 100%; margin: 0; transition: transform .28s cubic-bezier(.2,.8,.2,1), box-shadow .28s ease; }
.archive-grid .archive-card:hover { transform: translateY(-10px); }
.scroll-track {
  position: absolute; z-index: 120; top: 2.2vh; right: 12px; bottom: 2.2vh; width: 18px;
  cursor: pointer; touch-action: none; outline: none;
}
.scroll-rail {
  position: absolute; top: 14px; bottom: 14px; left: 50%; width: 1px;
  background: linear-gradient(to bottom, transparent, #d4d3cc 7%, #d4d3cc 93%, transparent);
  pointer-events: none;
}
.scroll-thumb {
  position: absolute; top: 0; left: 4px; width: 10px; min-height: 64px; border: 1px solid rgba(17,17,15,.28);
  border-radius: 99px; background: rgba(248,248,244,.88); box-shadow: 0 2px 9px rgba(17,17,15,.12);
  cursor: grab; touch-action: none; transition: width .2s ease, left .2s ease, background .2s ease, box-shadow .2s ease, height .15s ease;
}
.scroll-thumb::before {
  content: ''; position: absolute; inset: 3px; border-radius: inherit;
  background: linear-gradient(180deg, #30302c, #77766f);
}
.scroll-thumb span {
  position: absolute; z-index: 1; left: 50%; top: 50%; width: 2px; height: 16px; border-radius: 2px;
  background: rgba(248,248,244,.72); transform: translate(-50%, -50%); pointer-events: none;
}
.scroll-track:hover .scroll-thumb, .scroll-track:focus-visible .scroll-thumb {
  left: 2px; width: 14px; background: #fff; box-shadow: 0 3px 14px rgba(17,17,15,.2);
}
.scroll-track:focus-visible::after {
  content: ''; position: absolute; inset: 8px -3px; border: 1px solid #8d8c84; border-radius: 99px; pointer-events: none;
}
.scroll-thumb:active { cursor: grabbing; }

@media (max-width: 900px) {
  html, body, #root { overflow: hidden; }
  .app { display: flex; flex-direction: column; height: 100dvh; min-height: 0; }
  .sidebar {
    order: 2; position: relative; flex: 0 0 54dvh; height: 54dvh; min-height: 0;
    padding: 28px 28px 24px; overflow-y: auto;
    border-right: 0; border-top: 1px solid #d5d5cf; border-bottom: 0;
  }
  .sidebar h1 { font-size: 42px; }
  .sidebar p { margin-top: 28px; font-size: 15px; }
  .controls { margin: 35px 0 20px; }
  .rule { margin-bottom: 24px; }
  .sidebar button { height: 64px; min-height: 0; margin-bottom: 10px; }
  .stage { order: 1; flex: 0 0 46dvh; height: 46dvh; min-height: 0; }
  .mode-layered .layer-slot {
    left: 7vw; top: 50%; width: 265px;
    transform: translate3d(
      calc(var(--i) * 3.1vw + var(--layer-spread-x)),
      calc(-50% + var(--i) * -6px + var(--layer-spread-y)),
      0
    );
  }
  .card-space { --hover-pull-x: 86px; --hover-pull-y: -30px; --hover-pull-rotate: 11deg; }
  .mode-orbit .orbit-slot { left: 50%; width: 235px; }
  .archive-grid { grid-template-columns: repeat(2, 1fr); gap: 35px 20px; padding: 40px 24px 80px; }
  .mode-archive .stage { height: 46dvh; overflow: hidden; }
}

@media (orientation: portrait) and (min-width: 701px) {
  html, body, #root { overflow: hidden; }
  .app {
    display: grid; min-height: 0; height: 100dvh;
    grid-template-columns: 1fr; grid-template-rows: minmax(0, 62dvh) minmax(400px, 38dvh);
  }
  .sidebar {
    order: initial; grid-row: 2; height: 100%; min-height: 0; padding: 3vh 5vw 2.5vh;
    display: grid; grid-template-columns: minmax(0, .9fr) minmax(420px, 1.1fr);
    grid-template-rows: 1fr auto; column-gap: 6vw;
    border-right: 0; border-bottom: 1px solid #d5d5cf;
  }
  .stage { order: initial; grid-row: 1; }
  .sidebar header { align-self: start; }
  .sidebar h1 { font-size: clamp(42px, 6.2vw, 70px); }
  .sidebar p { margin-top: 3vh; font-size: clamp(15px, 2vw, 22px); line-height: 1.65; }
  .controls { grid-column: 2; grid-row: 1 / 3; align-self: center; margin: 0; }
  .rule { margin-bottom: 2.2vh; }
  .eyebrow { margin-bottom: 1.5vh; }
  .sidebar button { height: clamp(66px, 7.2vh, 104px); min-height: 0; margin-bottom: 1.2vh; }
  .sidebar small { grid-column: 1; align-self: end; }
  .stage { height: 100%; min-height: 0; }
  .mode-layered .layer-slot { left: 8vw; top: 50%; width: clamp(285px, 34vw, 430px); }
  .mode-layered .layer-slot {
    transform: translate3d(
      calc(var(--i) * 2.45vw + var(--layer-spread-x)),
      calc(-50% + var(--i) * -0.55vh + var(--layer-spread-y)),
      calc(var(--i) * -2px)
    ) rotateY(-1.5deg);
  }
  .card-space { --hover-pull-x: clamp(90px, 10vw, 150px); --hover-pull-y: -5vh; --hover-pull-rotate: 12deg; }
  .mode-orbit .orbit-slot { left: 50%; width: clamp(270px, 31vw, 390px); }
  .archive-grid { padding: 5vh 6vw 10vh; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 5vh 4.2vw; }
  .mode-archive .stage { height: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  .archive-card, .sidebar button { transition-duration: .01ms; }
}