/* AURIS — industrial product page (TE × Nothing × Apple) */

:root {
  --bg: #0a0a0a;
  --ink: #f2f2f2;
  --muted: #8a8a8a;
  --line: #2a2a2a;
  --line-hi: #4a4a4a;
  --accent: #ff4d00;
  --font-display: "Syne", "Avenir Next", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --chrome-h: 3.6rem;
  --dock-h: 3.2rem;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body {
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-mono);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }

.skip {
  position: absolute; left: -999px; top: 0; z-index: 100;
  background: var(--accent); color: #000; padding: 0.55rem 0.9rem; font-size: 12px;
}
.skip:focus { left: 1rem; top: 1rem; }

.grid-bg {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-color: var(--bg);
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 40% 50%, #000 35%, transparent 82%);
}

.chrome {
  position: fixed; z-index: 40; inset: 0 0 auto 0; height: var(--chrome-h);
  display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 1.25rem;
  padding: 0 clamp(1rem, 2.5vw, 2rem);
  border-bottom: 1px solid var(--line);
  background: rgba(10, 10, 10, 0.94);
  pointer-events: none;
}
.chrome a, .chrome__hint { pointer-events: auto; }
.chrome__mark {
  font-size: 13px; font-weight: 600; letter-spacing: 0.04em;
  text-decoration: none; color: var(--ink); text-transform: lowercase;
}
.chrome__nav {
  display: flex; align-items: center; justify-content: center;
  gap: clamp(1.2rem, 3vw, 2.4rem);
}
.chrome__nav a {
  display: flex; flex-direction: column; gap: 0.1rem;
  text-decoration: none; color: var(--muted); font-size: 12px;
  letter-spacing: 0.04em; text-transform: lowercase;
}
.chrome__nav a span { font-size: 10px; color: var(--line-hi); }
.chrome__nav a:hover, .chrome__nav a.is-active { color: var(--ink); }
.chrome__nav a.is-active span { color: var(--accent); }
.chrome__buy {
  flex-direction: row !important; padding: 0.4rem 0.7rem;
  border: 1px solid var(--ink); color: var(--ink) !important;
}
.chrome__hint {
  font-size: 11px; color: var(--muted);
  display: flex; align-items: center; gap: 0.35rem;
}
.chrome__hint kbd {
  border: 1px solid var(--line-hi); padding: 0.1rem 0.3rem;
  font-family: inherit; font-size: 10px;
}

.rail {
  position: relative; z-index: 1; height: 100%; width: 100%;
  overflow-x: auto; overflow-y: hidden;
  scroll-snap-type: x mandatory; scroll-behavior: smooth;
  scrollbar-width: none; outline: none;
}
.rail::-webkit-scrollbar { display: none; }
.track { display: flex; height: 100%; width: max-content; }

.panel {
  position: relative;
  flex: 0 0 100vw; width: 100vw; height: 100%;
  scroll-snap-align: start; scroll-snap-stop: always;
  overflow: hidden; isolation: isolate;
}
.panel__scroll {
  height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  padding: var(--chrome-h) clamp(1rem, 2.5vw, 2rem) calc(var(--dock-h) + 0.5rem);
  -webkit-overflow-scrolling: touch;
}

.layer { will-change: transform; transition: transform 0.12s linear; }

.mono-tag {
  font-size: 11px; letter-spacing: 0.1em; color: var(--muted);
  margin-bottom: 0.85rem; text-transform: lowercase;
}

/* intro */
.intro {
  min-height: calc(100vh - var(--chrome-h) - var(--dock-h) - 1rem);
  width: min(1100px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 2rem;
}
.intro__copy { display: flex; flex-direction: column; align-items: flex-start; gap: 0.85rem; }
.brand-hero {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(4rem, 12vw, 8.5rem);
  line-height: 0.85;
  letter-spacing: -0.06em;
  color: var(--ink);
  /* solid first; dotted as progressive enhancement */
  background-image: radial-gradient(circle, var(--ink) 1.05px, transparent 1.15px);
  background-size: 4px 4px;
  -webkit-background-clip: text;
  background-clip: text;
}
@supports not (-webkit-background-clip: text) {
  .brand-hero { color: var(--ink); background: none; }
}
.lede {
  font-size: 13px; color: var(--muted); letter-spacing: 0.06em;
  text-transform: lowercase; max-width: 36ch;
}
.spec-mini { width: min(280px, 100%); border-collapse: collapse; font-size: 12px; }
.spec-mini th, .spec-mini td {
  border-top: 1px solid var(--line); padding: 0.45rem 0; text-align: left; font-weight: 400;
}
.spec-mini th { color: var(--muted); width: 40%; }
.spec-mini td { color: var(--accent); font-weight: 500; }
.intro__shot {
  border: 1px solid var(--line);
  background: #111;
  overflow: hidden;
  aspect-ratio: 1;
  max-height: min(68vh, 520px);
  justify-self: end;
  width: min(100%, 480px);
}
.intro__shot img { width: 100%; height: 100%; object-fit: cover; }

.cta {
  display: inline-flex; align-items: center; justify-content: center;
  text-decoration: none; font-family: var(--font-mono); font-size: 12px;
  letter-spacing: 0.04em; text-transform: lowercase; font-weight: 600;
  cursor: pointer; border: 0;
}
.cta--solid {
  padding: 0.85rem 1.15rem; background: var(--ink); color: #0a0a0a; border: 1px solid var(--ink);
}
.cta--solid:hover { background: var(--accent); border-color: var(--accent); }
.cta--ghost {
  padding: 0.7rem 1rem; background: transparent; color: var(--ink); border: 1px solid var(--line-hi);
}
.cta--ghost[aria-pressed="true"] { border-color: var(--accent); color: var(--accent); }
.cta:focus-visible, .seg__btn:focus-visible, .hotspot:focus-visible, .step:focus-visible,
.order input:focus-visible, .order select:focus-visible {
  outline: 1px solid var(--accent); outline-offset: 2px;
}

.buy-row { display: flex; flex-wrap: wrap; align-items: center; gap: 0.85rem 1.2rem; margin-top: 1.2rem; }
.buy-meta { font-size: 11px; color: var(--muted); letter-spacing: 0.04em; }

/* product */
.product-stage {
  width: min(1200px, 100%);
  margin: 0 auto;
  min-height: calc(100vh - var(--chrome-h) - var(--dock-h) - 1rem);
  display: grid;
  grid-template-columns: 1.35fr 0.85fr;
  gap: 1.25rem;
  align-items: center;
}
.viewer {
  display: flex; flex-direction: column; gap: 0.75rem;
  min-width: 0; height: min(72vh, 620px);
}
.viewer__frame {
  position: relative; flex: 1;
  border: 1px solid var(--line); background: #0e0e0e;
  overflow: hidden; cursor: grab; touch-action: none;
}
.viewer__frame.is-locked { cursor: default; }
.viewer__frame:active:not(.is-locked) { cursor: grabbing; }
.viewer__img {
  width: 100%; height: 100%; object-fit: contain;
  transform-origin: center center;
  transition: filter 0.35s;
  user-select: none; pointer-events: none;
}
.viewer__img.is-detail { filter: contrast(1.08) saturate(0.92) brightness(0.92); }

.viewer__controls {
  display: flex; flex-wrap: wrap; gap: 0.65rem 1rem; align-items: center;
}
.seg { display: inline-flex; border: 1px solid var(--line); }
.seg__btn {
  appearance: none; background: transparent; border: 0; border-right: 1px solid var(--line);
  color: var(--muted); font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.04em; text-transform: lowercase; padding: 0.45rem 0.7rem; cursor: pointer;
}
.seg__btn:last-child { border-right: 0; }
.seg__btn.is-active { color: var(--ink); background: #161616; box-shadow: inset 0 -1px 0 var(--accent); }
.tilt-label {
  display: flex; align-items: center; gap: 0.55rem;
  font-size: 11px; color: var(--muted); text-transform: lowercase;
}
.tilt-label input { width: 110px; accent-color: var(--accent); }
.tilt-label.is-disabled { opacity: 0.45; pointer-events: none; }

.hotspot {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  appearance: none; border: 0; background: transparent; color: var(--ink);
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.06em;
  text-transform: lowercase; cursor: pointer;
  display: flex; align-items: center; gap: 0.35rem; z-index: 3;
}
.hotspot i {
  width: 12px; height: 12px; border: 1px solid var(--accent); border-radius: 50%;
  background: rgba(255, 77, 0, 0.25);
  box-shadow: 0 0 0 0 rgba(255, 77, 0, 0.4);
  animation: pulse 1.8s ease-out infinite;
}
.hotspot[aria-expanded="true"] i { background: var(--accent); animation: none; }
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(255, 77, 0, 0.45); }
  100% { box-shadow: 0 0 0 12px rgba(255, 77, 0, 0); }
}
.hotspot-card {
  position: absolute; right: 1rem; bottom: 1rem; width: min(270px, 72%);
  border: 1px solid var(--line-hi); background: rgba(10, 10, 10, 0.96);
  padding: 0.85rem 1rem 0.9rem; z-index: 4;
}
.hotspot-card[hidden] { display: none; }
.hotspot-card__k { font-size: 10px; color: var(--muted); letter-spacing: 0.08em; text-transform: lowercase; }
.hotspot-card__v { font-size: 16px; color: var(--accent); margin: 0.25rem 0 0.45rem; }
.hotspot-card__d { font-size: 11px; color: var(--muted); line-height: 1.45; }
.hotspot-card__x {
  position: absolute; top: 0.35rem; right: 0.45rem; appearance: none; border: 0;
  background: transparent; color: var(--muted); font-size: 16px; cursor: pointer;
}

.panel__copy--product { min-width: 0; }
.panel__copy--product h2 {
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(2.8rem, 6.5vw, 5.6rem); line-height: 0.88;
  letter-spacing: -0.05em; text-transform: lowercase; margin-bottom: 0.85rem;
}
.spec-line { font-size: 12px; line-height: 1.55; color: var(--muted); max-width: 34ch; }
.field-demo { margin-top: 1.35rem; padding-top: 1rem; border-top: 1px solid var(--line); }
.field-meter { margin-top: 0.65rem; height: 2px; background: var(--line); overflow: hidden; }
.field-meter i {
  display: block; height: 100%; width: 100%; background: var(--accent);
  transform-origin: left center; transform: scaleX(0);
}

/* specs */
.specs {
  width: min(1100px, 100%); margin: 0 auto;
  min-height: calc(100vh - var(--chrome-h) - var(--dock-h) - 1rem);
  display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 1.5rem; align-items: center;
}
.specs__head h2, .engine__head h2 {
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(2.2rem, 5vw, 3.8rem); line-height: 0.92;
  letter-spacing: -0.045em; text-transform: lowercase;
}
.specs__tools { display: flex; align-items: center; gap: 0.75rem; margin: 0.85rem 0 1rem; }
.spec-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
.spec-sheet th, .spec-sheet td {
  border-top: 1px solid var(--line); padding: 0.65rem 0; text-align: left; font-weight: 400;
}
.spec-sheet tr:last-child th, .spec-sheet tr:last-child td { border-bottom: 1px solid var(--line); }
.spec-sheet th { width: 38%; color: var(--muted); text-transform: lowercase; }
.spec-sheet td { color: var(--ink); }
.spec-sheet td.accent { color: var(--accent); font-weight: 500; }
.spec-sheet tr.is-lit td, .spec-sheet tr:focus-visible td { color: var(--accent); }
.spec-sheet tr:focus-visible { outline: 1px solid var(--accent); outline-offset: -1px; }
.specs__photo {
  border: 1px solid var(--line); overflow: hidden; height: min(70vh, 560px); background: #111;
}
.specs__photo img { width: 100%; height: calc(100% - 2rem); object-fit: cover; }
.specs__photo figcaption {
  height: 2rem; display: flex; align-items: center; padding: 0 0.75rem;
  font-size: 11px; color: var(--muted); border-top: 1px solid var(--line); text-transform: lowercase;
}

/* engine + order */
.engine {
  width: min(1000px, 100%); margin: 0 auto;
  min-height: calc(100vh - var(--chrome-h) - var(--dock-h) - 1rem);
  display: flex; flex-direction: column; justify-content: center; gap: 1.2rem;
}
.bento {
  display: grid; grid-template-columns: 1.35fr 1fr 1fr; border: 1px solid var(--line);
}
.bento__cell {
  padding: 1.15rem 1.2rem; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line);
  min-height: 6.5rem; background: #0c0c0c;
}
.bento__cell:nth-child(3), .bento__cell:last-child { border-right: 0; }
.bento__cell--tall { grid-row: 1 / 3; border-bottom: 0; }
.bento__cell--wide { grid-column: 2 / -1; border-right: 0; }
.bento__cell h3 {
  font-size: 11px; letter-spacing: 0.08em; text-transform: lowercase;
  color: var(--accent); margin-bottom: 0.55rem; font-weight: 500;
}
.bento__cell p { font-size: 12px; line-height: 1.5; color: var(--muted); max-width: 34ch; }

.order {
  border: 1px solid var(--line); padding: 1rem 1.15rem 1.15rem; background: #0c0c0c;
}
.order__grid {
  display: grid; grid-template-columns: 1.4fr 0.5fr 0.8fr auto; gap: 0.75rem; align-items: end;
}
.order label {
  display: flex; flex-direction: column; gap: 0.35rem;
  font-size: 11px; color: var(--muted); text-transform: lowercase;
}
.order input, .order select {
  appearance: none; background: #0a0a0a; border: 1px solid var(--line-hi);
  color: var(--ink); font-family: var(--font-mono); font-size: 12px; padding: 0.7rem 0.75rem;
}
.order__submit { height: 2.6rem; white-space: nowrap; }
.order .buy-meta { margin-top: 0.75rem; }
.order.is-ok .buy-meta, .order__success { color: var(--accent); }
.order__success { margin-top: 1rem; display: grid; gap: 0.75rem; }
.order__success[hidden] { display: none; }
.order.is-ok .order__grid { display: none; }

.dock {
  position: fixed; z-index: 40; left: 0; right: 0; bottom: 0; height: var(--dock-h);
  padding: 0 clamp(1rem, 2.5vw, 2rem);
  border-top: 1px solid var(--line);
  background: rgba(10, 10, 10, 0.96);
  display: flex; align-items: center;
}
.dock__bar {
  width: 100%; display: grid; grid-template-columns: minmax(70px, 120px) 1fr auto;
  align-items: center; gap: 1rem;
}
.dock__progress { height: 1px; background: var(--line); overflow: hidden; }
.dock__progress i {
  display: block; height: 100%; width: 100%; background: var(--accent);
  transform-origin: left center; transform: scaleX(0.25);
}
.dock__steps { display: flex; justify-content: center; gap: clamp(0.6rem, 1.8vw, 1.5rem); }
.step {
  appearance: none; border: 0; background: transparent; color: var(--muted);
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.05em;
  text-transform: lowercase; cursor: pointer; display: inline-flex; gap: 0.35rem;
}
.step span { color: var(--line-hi); }
.step.is-active { color: var(--ink); }
.step.is-active span { color: var(--accent); }
.dock__label { font-size: 11px; letter-spacing: 0.1em; color: var(--muted); justify-self: end; }

@media (prefers-reduced-motion: reduce) {
  .rail { scroll-behavior: auto; }
  .layer { transition: none !important; }
  .hotspot i { animation: none; }
}

@media (max-width: 960px) {
  .chrome {
    height: auto; padding-top: 0.7rem; padding-bottom: 0.7rem;
    grid-template-columns: auto 1fr;
  }
  .chrome__nav {
    grid-column: 1 / -1; justify-content: flex-start; overflow-x: auto; gap: 1rem;
  }
  .chrome__nav a span, .chrome__hint { display: none; }
  .intro, .product-stage, .specs { grid-template-columns: 1fr; min-height: 0; }
  .intro__shot { justify-self: stretch; max-height: 260px; width: 100%; }
  .viewer { height: min(52vh, 380px); }
  .panel__copy--product h2 { font-size: clamp(2.4rem, 10vw, 3.4rem); }
  .specs__photo { height: 240px; }
  .bento { grid-template-columns: 1fr; }
  .bento__cell--tall, .bento__cell--wide { grid-column: auto; grid-row: auto; }
  .bento__cell { border-right: 0; }
  .order__grid { grid-template-columns: 1fr 1fr; }
  .order__submit { grid-column: 1 / -1; }
  .dock { height: auto; padding-top: 0.5rem; padding-bottom: 0.65rem; }
  .dock__bar { grid-template-columns: 1fr; gap: 0.4rem; }
  .dock__label { justify-self: start; }
}