:root {
  --bg: #080808;
  --panel: #0d0d0d;
  --panel-2: #111;
  --line: rgba(255,255,255,.10);
  --line-strong: rgba(255,255,255,.18);
  --text: #f3f3ef;
  --muted: #969692;
  --max: 1380px;
  --nav-h: 58px;
  --ease: cubic-bezier(.2,.72,.18,1);
}

* { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  background: var(--bg);
  color-scheme: dark;
  -webkit-text-size-adjust: 100%;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
html::-webkit-scrollbar,
body::-webkit-scrollbar {
  width: 0;
  height: 0;
  display: none;
}
body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  overscroll-behavior-y: none;
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}
a { color: inherit; }
img { display: block; width: 100%; height: 100%; object-fit: cover; }
button { font: inherit; }
button, a { touch-action: manipulation; }

.topbar {
  position: fixed;
  z-index: 100;
  inset: 0 0 auto 0;
  min-height: calc(var(--nav-h) + env(safe-area-inset-top));
  padding: env(safe-area-inset-top) max(16px, env(safe-area-inset-right)) 0 max(16px, env(safe-area-inset-left));
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(8,8,8,.91);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.brand {
  min-height: var(--nav-h);
  display: inline-flex;
  align-items: center;
  color: #e7e7e4;
  text-decoration: none;
  font-size: 13px;
  font-weight: 650;
  letter-spacing: -.01em;
}
.topbar-meta {
  min-height: var(--nav-h);
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--muted);
  font-size: 10px;
  font-variant-numeric: tabular-nums;
  letter-spacing: .055em;
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(-5px);
  pointer-events: none;
  transition: opacity .35s ease, transform .35s ease;
}
.topbar-meta.visible { opacity: 1; transform: none; }
.divider { width: 1px; height: 13px; background: var(--line); }
.scroll-progress {
  position: fixed;
  z-index: 110;
  top: calc(var(--nav-h) + env(safe-area-inset-top) - 1px);
  left: 0;
  right: 0;
  height: 2px;
  pointer-events: none;
}
.scroll-progress span { display: block; width: 0; height: 100%; background: #eee; }

/* Simple, personal intro instead of the oversized agency-style splash. */
.intro {
  min-height: 100svh;
  padding: calc(var(--nav-h) + env(safe-area-inset-top) + 44px) max(18px, env(safe-area-inset-right)) 56px max(18px, env(safe-area-inset-left));
  display: grid;
  align-items: center;
  border-bottom: 1px solid var(--line);
}
.intro-inner {
  width: min(100%, 1080px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, .84fr) minmax(420px, 1.16fr);
  gap: clamp(40px, 7vw, 96px);
  align-items: center;
}
.tiny-label,
.eyebrow {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .11em;
  text-transform: lowercase;
}
h1, h2 { margin: 0; letter-spacing: -.048em; }
h1 {
  max-width: 9.5ch;
  font-size: clamp(52px, 7vw, 84px);
  line-height: .96;
  font-weight: 720;
}
.intro-note {
  margin: 20px 0 0;
  color: #a6a6a2;
  font-size: 14px;
  line-height: 1.5;
}
.intro-link {
  margin-top: 25px;
  min-height: 44px;
  width: fit-content;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #e2e2df;
  text-decoration: none;
  font-size: 13px;
  border-bottom: 1px solid rgba(255,255,255,.28);
}
.intro-collage {
  position: relative;
  min-height: 490px;
  isolation: isolate;
}
.photo-card {
  position: absolute;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.14);
  background: #111;
  box-shadow: 0 16px 50px rgba(0,0,0,.32);
}
.photo-card::before {
  content: "";
  position: absolute;
  z-index: 3;
  width: 56px;
  height: 14px;
  top: -2px;
  left: 50%;
  transform: translateX(-50%) rotate(-1deg);
  background: rgba(235,235,229,.78);
  opacity: .72;
}
.photo-keyboard {
  z-index: 1;
  left: 1%;
  top: 14%;
  width: 48%;
  aspect-ratio: 1.26;
  transform: rotate(-5deg);
  border-radius: 8px;
}
.photo-mouse {
  z-index: 3;
  left: 27%;
  top: 2%;
  width: 62%;
  aspect-ratio: 1.55;
  transform: rotate(2.5deg);
  border-radius: 9px;
}
.photo-headset {
  z-index: 2;
  right: 1%;
  bottom: 0;
  width: 43%;
  aspect-ratio: .92;
  transform: rotate(5deg);
  border-radius: 8px;
}
.photo-card img { transition: transform .7s var(--ease); }
.photo-card:hover img { transform: scale(1.025); }

.product {
  --reveal: 0;
  --copy-reveal: 0;
  --detail-one: 0;
  --detail-two: 0;
  position: relative;
  min-height: 172svh;
  border-top: 1px solid var(--line);
}
.product-stage {
  position: sticky;
  top: calc(var(--nav-h) + env(safe-area-inset-top));
  min-height: calc(100svh - var(--nav-h) - env(safe-area-inset-top));
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(34px, 5vw, 70px) clamp(20px, 5vw, 72px);
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(330px, .88fr);
  align-items: center;
  gap: clamp(34px, 6vw, 88px);
  overflow: clip;
}
.product.reverse .product-stage { grid-template-columns: minmax(330px, .88fr) minmax(0, 1.12fr); }
.product-media, .product-copy { position: relative; z-index: 2; }
.product-copy { max-width: 520px; }
.product-copy h2 {
  font-size: clamp(42px, 5vw, 74px);
  line-height: .98;
  font-weight: 700;
}
.descriptor {
  margin: 18px 0 0;
  max-width: 48ch;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}
.gradual {
  will-change: transform, opacity;
  transition: opacity .12s linear, transform .12s linear;
}
.hero-visual {
  opacity: calc(.04 + var(--reveal) * .96);
  transform: translateY(calc((1 - var(--reveal)) * 54px)) scale(calc(.965 + var(--reveal) * .035));
}
.detail-visual-one {
  opacity: var(--detail-one);
  transform: translateY(calc((1 - var(--detail-one)) * 42px)) scale(calc(.975 + var(--detail-one) * .025));
}
.detail-visual-two {
  opacity: var(--detail-two);
  transform: translateY(calc((1 - var(--detail-two)) * 48px)) scale(calc(.975 + var(--detail-two) * .025));
}
.copy-visual {
  opacity: var(--copy-reveal);
  transform: translateY(calc((1 - var(--copy-reveal)) * 44px));
}
.gallery-main,
.gallery-small {
  margin: 0;
  overflow: hidden;
  background: #101010;
  border: 1px solid var(--line);
}
.gallery-main { aspect-ratio: 16 / 9.7; border-radius: 18px; }
.gallery-small { aspect-ratio: 16 / 10; border-radius: 13px; }
.gallery-main.dark,
.gallery-small.dark { background: #030303; }
.gallery-small.light { background: #ededed; }
.gallery-main img,
.gallery-small img { transition: transform .8s var(--ease); }
.gallery-main:hover img,
.gallery-small:hover img { transform: scale(1.018); }
.gallery-support {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 10px;
}
.feature-row {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}
.feature-row span {
  min-height: 30px;
  display: inline-flex;
  align-items: center;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #b7b7b2;
  font-size: 10px;
  white-space: nowrap;
}
.price-row {
  display: flex;
  align-items: baseline;
  gap: 9px;
  margin-top: 29px;
}
.price {
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 680;
  letter-spacing: -.04em;
  font-variant-numeric: tabular-nums;
}
.currency {
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .1em;
}
.action-row {
  margin-top: 21px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.detail-button,
.shop-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: transparent;
  color: #e5e5e1;
  text-decoration: none;
  font-size: 12px;
  cursor: pointer;
  transition: background .2s ease, border-color .2s ease, transform .2s ease;
}
.detail-button:hover,
.shop-link:hover { background: #141414; border-color: var(--line-strong); transform: translateY(-1px); }
.shop-link { color: #a9a9a5; }
.info-panel {
  margin-top: 16px;
  overflow: hidden;
  border-top: 1px solid var(--line);
}
.info-panel[hidden] { display: none; }
.info-panel dl { margin: 0; }
.info-panel dl > div {
  display: grid;
  grid-template-columns: minmax(100px, .7fr) minmax(0, 1.3fr);
  gap: 16px;
  padding: 11px 0;
  border-bottom: 1px solid rgba(255,255,255,.065);
}
.info-panel dt {
  color: var(--muted);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .07em;
}
.info-panel dd {
  margin: 0;
  color: #d4d4d0;
  font-size: 12px;
  line-height: 1.45;
}

.total-section {
  min-height: 100svh;
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(88px, 10vw, 126px) clamp(18px, 5vw, 72px) max(72px, calc(48px + env(safe-area-inset-bottom)));
  border-top: 1px solid var(--line);
}
.total-card {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 22px;
  padding-bottom: clamp(26px, 4vw, 44px);
  border-bottom: 1px solid var(--line);
}
.total-card .eyebrow { margin-bottom: 8px; }
.total-note { margin: 0; max-width: 58ch; color: var(--muted); font-size: 12px; line-height: 1.55; text-transform: lowercase; }
.total-amount {
  font-size: clamp(52px, 9vw, 112px);
  font-weight: 710;
  letter-spacing: -.066em;
  line-height: .88;
  font-variant-numeric: tabular-nums;
}
.final-gallery {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}
.final-item {
  min-width: 0;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #0b0b0b;
}
.final-image {
  aspect-ratio: 16 / 11;
  overflow: hidden;
  border-radius: 8px;
  background: #050505;
}
.final-meta {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 1px 2px;
  color: #d8d8d4;
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}
.final-meta span:last-child { color: var(--muted); }
.summary {
  margin-top: 22px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.summary-row {
  min-height: 50px;
  display: grid;
  grid-template-columns: 34px 1fr auto;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid rgba(255,255,255,.06);
  font-size: 12px;
}
.summary-row:last-child { border-bottom: 0; }
.summary-num,
.summary-price { color: var(--muted); font-variant-numeric: tabular-nums; }
.back-top {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  margin-top: 18px;
  color: var(--muted);
  text-decoration: none;
  font-size: 11px;
}

@media (max-width: 980px) {
  .intro-inner { grid-template-columns: 1fr; gap: 34px; }
  .intro-copy { max-width: 620px; }
  .intro-collage { min-height: 420px; width: min(100%, 660px); }

  .product { min-height: auto; }
  .product-stage,
  .product.reverse .product-stage {
    position: relative;
    top: auto;
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 26px;
    padding-top: 84px;
    padding-bottom: 72px;
    overflow: visible;
  }
  .product.reverse .product-copy { order: 2; }
  .product.reverse .product-media { order: 1; }
  .product-copy { max-width: none; }

  /* Mobile reveals are observer-driven rather than every-scroll calculations. */
  .product .gradual {
    opacity: 0;
    transform: translateY(26px) scale(.99);
    transition: opacity .62s var(--ease), transform .62s var(--ease);
    will-change: auto;
  }
  .product.mobile-inview .hero-visual { opacity: 1; transform: none; transition-delay: .02s; }
  .product.mobile-inview .copy-visual { opacity: 1; transform: none; transition-delay: .13s; }
  .product.mobile-inview .detail-visual-one { opacity: 1; transform: none; transition-delay: .23s; }
  .product.mobile-inview .detail-visual-two { opacity: 1; transform: none; transition-delay: .31s; }
}

@media (max-width: 640px) {
  :root { --nav-h: 54px; }
  .topbar { padding-left: max(14px, env(safe-area-inset-left)); padding-right: max(14px, env(safe-area-inset-right)); }
  .brand { font-size: 12px; }
  .topbar-meta { font-size: 9px; gap: 7px; }

  .intro {
    min-height: 92svh;
    padding-top: calc(var(--nav-h) + env(safe-area-inset-top) + 34px);
    padding-bottom: 42px;
  }
  .intro-inner { gap: 26px; }
  h1 { font-size: clamp(46px, 15.3vw, 66px); max-width: 8.7ch; }
  .intro-note { margin-top: 15px; font-size: 13px; }
  .intro-link { margin-top: 17px; }
  .intro-collage { min-height: 304px; width: 100%; }
  .photo-card::before { width: 42px; height: 11px; }
  .photo-keyboard { left: -2%; top: 18%; width: 49%; }
  .photo-mouse { left: 21%; top: 1%; width: 71%; }
  .photo-headset { right: -2%; bottom: 0; width: 43%; }

  .product-stage {
    padding: calc(var(--nav-h) + env(safe-area-inset-top) + 28px) max(15px, env(safe-area-inset-right)) max(64px, calc(42px + env(safe-area-inset-bottom))) max(15px, env(safe-area-inset-left));
    gap: 24px;
  }
  .gallery-main { border-radius: 14px; }
  .gallery-support { gap: 8px; margin-top: 8px; }
  .gallery-small { border-radius: 10px; }
  .product-copy h2 { font-size: clamp(40px, 12vw, 54px); }
  .descriptor { font-size: 13px; margin-top: 14px; }
  .feature-row { margin-top: 18px; }
  .feature-row span { font-size: 9.5px; }
  .price-row { margin-top: 24px; }
  .price { font-size: 36px; }
  .action-row { gap: 7px; margin-top: 18px; }
  .detail-button,
  .shop-link { flex: 1 1 calc(50% - 7px); min-width: 0; padding-inline: 10px; font-size: 11px; }
  .info-panel dl > div { grid-template-columns: 1fr; gap: 4px; padding: 10px 0; }

  .total-section { padding-left: max(15px, env(safe-area-inset-left)); padding-right: max(15px, env(safe-area-inset-right)); }
  .total-card { grid-template-columns: 1fr; align-items: start; gap: 14px; }
  .total-amount { font-size: clamp(52px, 17vw, 76px); }
  .final-gallery { gap: 6px; }
  .final-item { padding: 5px; border-radius: 9px; }
  .final-image { border-radius: 6px; aspect-ratio: 1 / 1; }
  .final-meta { display: block; padding: 7px 1px 1px; font-size: 9px; line-height: 1.3; }
  .final-meta span { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .final-meta span:last-child { margin-top: 2px; }
  .summary-row { grid-template-columns: 28px 1fr auto; font-size: 11px; }
}

@media (display-mode: standalone) {
  .topbar { background: rgba(8,8,8,.96); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition-duration: .01ms !important; }
  .gradual { opacity: 1 !important; transform: none !important; }
}