:root {
  color-scheme: light;
  --silver: #d9dcdd;
  --ink: #0d0e0f;
  --smoke: #565b5d;
  --amber: #ffae24;
  --pad: clamp(1.1rem, 2.6vw, 2.8rem);
  --duration-fast: 250ms;
  --duration-reveal: 500ms;
  --distance-reveal: 12px;
  --ease-smooth-out: cubic-bezier(.22, 1, .36, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--silver); color: var(--ink); font-family: Arial, Helvetica, sans-serif; }
a { color: inherit; }
.skip { position: fixed; left: 1rem; top: -5rem; z-index: 30; background: var(--amber); padding: .8rem 1rem; }
.skip:focus { top: 1rem; }
header { position: absolute; z-index: 10; inset: 0 0 auto; height: 70px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; padding: 0 var(--pad); border-bottom: 1px solid rgba(13,14,15,.22); font-size: .74rem; text-transform: uppercase; letter-spacing: .1em; }
.logo { display: flex; align-items: center; width: max-content; text-decoration: none; font-size: 1.1rem; font-weight: 800; }
.logo span { background: var(--ink); color: var(--silver); padding: .2rem .35rem; }
.logo b { background: var(--amber); padding: .2rem .35rem; }
header nav { display: flex; gap: 1.8rem; }
header nav a { text-decoration: none; }
header nav a:hover, header nav a:focus-visible { text-decoration: underline; text-underline-offset: .35rem; }
.nav-action { justify-self: end; background: var(--ink); color: white; padding: .72rem 1rem; text-decoration: none; white-space: nowrap; }
.nav-action:active { transform: translateY(1px); }
.hero { position: relative; min-height: 100dvh; overflow: hidden; display: grid; align-items: end; padding: 8rem var(--pad) clamp(2rem, 4vw, 4rem); }
.hero-product { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; animation: product-in 1.2s cubic-bezier(.16,1,.3,1) both; }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(217,220,221,.92) 0, rgba(217,220,221,.6) 34%, transparent 61%); }
.hero-copy { position: relative; z-index: 2; width: min(47rem, 54vw); }
.hero-copy > p, .instrument-head span, .detail-intro > span, .concept-copy > span { margin: 0 0 1.4rem; font-size: .72rem; text-transform: uppercase; letter-spacing: .14em; }
.hero h1 { margin: 0; font-size: clamp(4rem, 8.4vw, 9.5rem); line-height: .82; letter-spacing: -.075em; font-weight: 600; }
.hero-copy > span { display: block; max-width: 30rem; margin: 1.5rem 0; color: #303436; line-height: 1.5; font-size: 1.05rem; }
.hero-copy > a, .concept-copy a { display: inline-flex; align-items: center; gap: .8rem; text-decoration: none; border-bottom: 1px solid; padding-bottom: .4rem; font-size: .78rem; text-transform: uppercase; letter-spacing: .11em; }
.hero-copy > a i, .concept-copy a i { color: #a35b00; font-style: normal; }
.edge-label { position: absolute; z-index: 2; right: var(--pad); top: 7rem; writing-mode: vertical-rl; font: .68rem/1 monospace; letter-spacing: .12em; }
.signal { position: absolute; z-index: 2; right: var(--pad); bottom: var(--pad); display: flex; align-items: end; gap: .32rem; height: 5rem; }
.signal i { display: block; width: .28rem; background: var(--ink); animation: meter 1.4s ease-in-out infinite alternate; }
.signal i:nth-child(2n) { animation-delay: -.8s; }
.signal i:nth-child(3n) { animation-delay: -.35s; }
.instrument, .details { padding: clamp(6rem, 11vw, 11rem) var(--pad); background: #0f1112; color: #f1f1ed; }
.instrument-head { display: grid; grid-template-columns: minmax(10rem,.35fr) 1fr; margin-bottom: 5rem; }
.instrument-head span, .detail-intro > span { color: var(--amber); }
.instrument h2, .details h2, .concept h2 { margin: 0; font-size: clamp(3rem, 7vw, 7.4rem); line-height: .9; letter-spacing: -.06em; font-weight: 500; }
.mode-panel { display: grid; grid-template-columns: minmax(18rem,.65fr) minmax(0,1.35fr); grid-template-rows: 1fr auto; min-height: 43rem; border-top: 1px solid rgba(255,255,255,.22); }
.mode-copy { padding: 3rem 4rem 2rem 0; align-self: center; }
.mode-copy > p:first-child { color: var(--amber); font: .72rem/1 monospace; text-transform: uppercase; }
.mode-copy h3 { margin: 1.4rem 0; font-size: clamp(4rem, 8vw, 8rem); line-height: .8; letter-spacing: -.07em; font-weight: 500; }
.mode-copy > p:nth-of-type(2) { color: #aaaead; line-height: 1.55; max-width: 31rem; }
.mode-copy dl { margin-top: 3rem; }
.mode-copy dl div { display: grid; grid-template-columns: 6rem 1fr; padding: .75rem 0; border-top: 1px solid rgba(255,255,255,.18); }
.mode-copy dt { color: #7f8382; }
.mode-copy dd { margin: 0; }
.mode-visual { grid-column: 2; grid-row: 1 / 3; position: relative; overflow: hidden; min-height: 43rem; }
.mode-visual img { width: 100%; height: 100%; object-fit: cover; object-position: 58% center; filter: saturate(.7) brightness(.74); transition: transform var(--duration-fast) var(--ease-smooth-out), filter var(--duration-fast) ease-in-out; }
.mode-panel[data-active="voice"] .mode-visual img { transform: scale(1.08) translateX(-2%); filter: saturate(.4) brightness(.62); }
.mode-panel[data-active="music"] .mode-visual img { transform: scale(1.13) translate(3%,-2%); filter: saturate(1) contrast(1.08) brightness(.72); }
.reticle { position: absolute; inset: 50% auto auto 50%; width: min(22vw, 15rem); aspect-ratio: 1; border: 1px solid rgba(255,174,36,.68); border-radius: 50%; translate: -50% -50%; }
.reticle span { position: absolute; background: rgba(255,174,36,.68); }
.reticle span:first-child { width: 130%; height: 1px; left: -15%; top: 50%; }
.reticle span:last-child { height: 130%; width: 1px; top: -15%; left: 50%; }
.mode-tabs { display: flex; gap: .55rem; align-self: end; padding: 0 2rem 2rem 0; }
.mode-tabs button { appearance: none; min-height: 44px; border: 1px solid rgba(255,255,255,.3); background: transparent; color: white; padding: .75rem 1rem; font: inherit; cursor: pointer; border-radius: 0; }
.mode-tabs button[aria-selected="true"] { background: var(--amber); color: var(--ink); border-color: var(--amber); }
.mode-tabs button:focus-visible { outline: 2px solid white; outline-offset: 3px; }
.details { background: var(--silver); color: var(--ink); }
.detail-intro { max-width: 75rem; }
.detail-intro > span { color: #8a4d00; }
.detail-intro > p { margin: 2rem 0 0 35%; max-width: 37rem; color: var(--smoke); font-size: 1.1rem; line-height: 1.55; }
.spec-grid { display: grid; grid-template-columns: repeat(3,1fr); margin-top: 6rem; border-top: 1px solid rgba(13,14,15,.3); }
.spec-grid article { padding: 1.3rem 2rem 4rem 0; border-right: 1px solid rgba(13,14,15,.3); }
.spec-grid article + article { padding-left: 2rem; }
.spec-grid span { color: #8a4d00; font-size: .7rem; }
.spec-grid h3 { font-size: 1.8rem; margin: 4rem 0 1rem; font-weight: 500; letter-spacing: -.03em; }
.spec-grid p { color: var(--smoke); line-height: 1.5; max-width: 24rem; }
.numbers { display: grid; grid-template-columns: repeat(3,1fr); background: var(--amber); margin-top: 2rem; padding: 2rem; }
.numbers div { display: flex; align-items: end; gap: 1rem; }
.numbers strong { font-size: clamp(5rem, 11vw, 11rem); line-height: .8; letter-spacing: -.08em; font-weight: 500; }
.numbers span { padding-bottom: .4rem; font-size: .72rem; text-transform: uppercase; letter-spacing: .08em; }
.concept { padding: clamp(4rem,8vw,8rem) var(--pad); display: grid; grid-template-columns: minmax(0,1.25fr) minmax(22rem,.75fr); gap: 6vw; align-items: center; background: #292d2f; color: white; }
.concept-image { height: min(70vw, 48rem); overflow: hidden; }
.concept-image img { width: 100%; height: 100%; object-fit: cover; object-position: 62% center; filter: grayscale(.75) brightness(.78); }
.concept-copy > span { color: var(--amber); }
.concept h2 { font-size: clamp(3rem, 5vw, 5.5rem); }
.concept-copy p { color: #bfc2c1; line-height: 1.6; margin: 2rem 0; max-width: 32rem; }
footer { background: #0f1112; color: #999; min-height: 84px; display: flex; justify-content: space-between; padding: 1.4rem var(--pad); font-size: .72rem; text-transform: uppercase; letter-spacing: .09em; }
.reveal { opacity: 0; transform: translateY(var(--distance-reveal)); transition: opacity var(--duration-reveal) ease-in-out, transform var(--duration-reveal) ease-in-out; }
.reveal.visible { opacity: 1; transform: none; }
@keyframes product-in { from { transform: scale(1.07); filter: grayscale(1); } to { transform: scale(1); filter: none; } }
@keyframes meter { from { height: .5rem; } to { height: 4.8rem; } }

@media (max-width: 760px) {
  header { grid-template-columns: 1fr auto; height: 64px; }
  header nav { display: none; }
  .hero { min-height: 100svh; align-items: end; }
  .hero-product { object-position: 59% center; }
  .hero::after { background: linear-gradient(0deg, rgba(217,220,221,.94) 0 35%, rgba(217,220,221,.14) 68%, transparent); }
  .hero-copy { width: 100%; }
  .hero h1 { font-size: clamp(3.8rem, 18vw, 6.2rem); }
  .edge-label, .signal { display: none; }
  .instrument-head { grid-template-columns: 1fr; gap: 1.2rem; }
  .mode-panel { grid-template-columns: 1fr; grid-template-rows: auto 26rem auto; min-height: auto; }
  .mode-copy { padding-right: 0; }
  .mode-visual { grid-column: 1; grid-row: 2; min-height: 26rem; }
  .mode-tabs { grid-row: 3; padding: 1rem 0 0; }
  .detail-intro > p { margin-left: 0; }
  .spec-grid, .numbers { grid-template-columns: 1fr; }
  .spec-grid article { border-right: 0; border-bottom: 1px solid rgba(13,14,15,.3); padding: 1.3rem 0 2.5rem; }
  .spec-grid article + article { padding-left: 0; }
  .spec-grid h3 { margin-top: 2rem; }
  .numbers { gap: 2.5rem; }
  .concept { grid-template-columns: 1fr; }
  .concept-image { height: 26rem; }
  footer { flex-direction: column; gap: .8rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
  .signal { display: none; }
}