:root {
  --bg: #111113;
  --fg: #f4f3ef;
  --fg-dim: rgba(244, 243, 239, 0.55);
  --accent: #d7fd50;
  --font: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
}

#scene {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  cursor: grab;
}

#scene.is-dragging {
  cursor: grabbing;
}

#scene.is-hovering {
  cursor: pointer;
}

/* ---------- header ---------- */
.ui-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 36px;
  z-index: 10;
  pointer-events: none;
  mix-blend-mode: difference;
}

.logo {
  pointer-events: auto;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--fg);
  text-decoration: none;
}

.logo span {
  font-size: 11px;
  vertical-align: super;
}

.nav {
  display: flex;
  gap: 28px;
  pointer-events: auto;
}

.nav a {
  color: var(--fg);
  text-decoration: none;
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: 0.7;
  transition: opacity 0.25s ease;
}

.nav a:hover {
  opacity: 1;
}

/* ---------- footer ---------- */
.ui-footer {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding: 28px 36px;
  z-index: 10;
  pointer-events: none;
}

.hint {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-dim);
}

.counter {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--fg-dim);
  font-variant-numeric: tabular-nums;
}

#counter-current {
  color: var(--fg);
}

/* ---------- cursor label ---------- */
.cursor-label {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 20;
  pointer-events: none;
  will-change: transform;
}

.cursor-label__offset {
  transform: translate(-50%, calc(-100% - 18px));
}

.cursor-label__inner {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 14px;
  background: var(--accent);
  color: #111;
  border-radius: 4px;
  transform: scale(0);
  transform-origin: bottom center;
  opacity: 0;
}

.cursor-label__title {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.cursor-label__meta {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.6;
  white-space: nowrap;
}

/* ---------- detail page ---------- */
.detail {
  position: fixed;
  inset: 0;
  z-index: 30;
  visibility: hidden;
  pointer-events: none;
}

.detail.is-open {
  visibility: visible;
  pointer-events: auto;
}

.detail__bg {
  position: absolute;
  inset: 0;
  background: var(--bg);
  transform: translateY(100%);
}

.detail__inner {
  position: relative;
  height: 100%;
  overflow-y: auto;
  padding: 110px clamp(24px, 6vw, 90px) 80px;
}

.detail__back {
  position: fixed;
  top: 28px;
  left: 36px;
  z-index: 5;
  background: none;
  border: 1px solid rgba(244, 243, 239, 0.25);
  border-radius: 999px;
  color: var(--fg);
  font-family: var(--font);
  font-size: 13px;
  letter-spacing: 0.04em;
  padding: 12px 22px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: background 0.25s ease, color 0.25s ease;
  opacity: 0;
}

.detail__back:hover {
  background: var(--fg);
  color: #111;
}

.detail__hero {
  width: 100%;
  display: flex;
  justify-content: center;
}

.detail__img-wrap {
  width: min(1000px, 100%);
  max-height: 82vh;
  overflow: hidden;
  border-radius: 12px;
}

.detail__img-wrap img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 82vh;
  object-fit: contain;
}

.detail__content {
  max-width: 1000px;
  margin: 56px auto 0;
}

.detail__meta {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin-bottom: 18px;
}

.detail__title {
  font-size: clamp(42px, 7vw, 96px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 28px;
  overflow: hidden;
}

.detail__desc {
  max-width: 560px;
  font-size: 16px;
  line-height: 1.65;
  color: var(--fg-dim);
}

/* ---------- loader ---------- */
.loader {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.loader__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.loader__logo {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.loader__progress {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--fg-dim);
  font-variant-numeric: tabular-nums;
}