/* ==========================================================================
   Voltra — Premium Electronics · style.css
   ========================================================================== */
:root {
  --bg: #0c0d10;
  --bg-2: #1b1d22;
  --surface: #14161b;
  --surface-2: #1b1d22;
  --line: rgba(245, 247, 250, 0.1);
  --line-2: rgba(245, 247, 250, 0.18);
  --text: #f5f7fa;
  --muted: #a4aab5;
  --cyan: #3de0ff;
  --cyan-ink: #04161c;
  --warm: #ff8a3d;
  --display: "Sora", "Inter", system-ui, sans-serif;
  --body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --gutter: clamp(16px, 4vw, 56px);
  --radius: 22px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --nav-h: 68px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
button { font: inherit; color: inherit; }
h1, h2, h3, h4 { font-family: var(--display); font-weight: 600; margin: 0; letter-spacing: -0.03em; line-height: 1.05; }
p { margin: 0; }
::selection { background: var(--cyan); color: var(--cyan-ink); }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; border-radius: 6px; }

.sr-only { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; left: 16px; top: -60px; z-index: 300; background: var(--cyan); color: var(--cyan-ink); padding: 10px 16px; border-radius: 10px; font-weight: 600; text-decoration: none; transition: top .3s var(--ease); }
.skip-link:focus { top: 12px; }

.container { width: 100%; max-width: 1320px; margin: 0 auto; padding: 0 var(--gutter); }
main, .footer { position: relative; z-index: 1; overflow-x: clip; }
.muted { color: var(--muted); }
.lead { color: var(--muted); font-size: clamp(1rem, 0.6vw + 0.85rem, 1.2rem); max-width: 34em; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--body); font-size: 0.78rem; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--cyan); margin-bottom: 18px;
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 12px var(--cyan); }

/* Buttons --------------------------------------------------------------- */
.btn {
  --h: 54px;
  position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: var(--h); padding: 0 26px; border-radius: 999px; border: 1px solid transparent;
  font-weight: 600; font-size: 0.98rem; letter-spacing: -0.005em; text-decoration: none; cursor: pointer;
  transition: background-color .4s var(--ease), color .4s var(--ease), border-color .4s var(--ease), box-shadow .4s var(--ease);
  touch-action: manipulation; white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; transition: transform .45s var(--ease); }
.btn:hover svg { transform: translateX(4px); }
.btn--cyan { background: var(--cyan); color: var(--cyan-ink); box-shadow: 0 10px 40px -12px rgba(61, 224, 255, .7); }
.btn--cyan:hover { background: #8aedff; }
.btn--ghost { border-color: var(--line-2); color: var(--text); background: rgba(245,247,250,.03); backdrop-filter: blur(10px); }
.btn--ghost:hover { border-color: rgba(245,247,250,.45); background: rgba(245,247,250,.07); }
.btn--small { --h: 40px; padding: 0 18px; font-size: .88rem; }
.btn--block { width: 100%; }

.tag { position: absolute; top: 14px; left: 14px; z-index: 2; font-size: .72rem; font-weight: 600; letter-spacing: .04em; padding: 5px 10px; border-radius: 999px; }
.tag--warm { background: var(--warm); color: #1d0d02; }
.tag--cyan { background: rgba(61,224,255,.14); color: var(--cyan); border: 1px solid rgba(61,224,255,.35); }

/* Preloader ------------------------------------------------------------- */
.preloader { position: fixed; inset: 0; z-index: 400; background: var(--bg); display: grid; place-items: center; }
html:not(.has-motion) .preloader { display: none; }
.preloader__inner { width: min(360px, 78vw); }
.preloader__logo { display: flex; justify-content: space-between; font-family: var(--display); font-weight: 600; font-size: clamp(2.6rem, 8vw, 4rem); letter-spacing: -0.02em; overflow: hidden; }
.preloader__logo span { display: inline-block; }
.preloader__bar { height: 2px; background: var(--line); margin: 22px 0 14px; overflow: hidden; border-radius: 2px; }
.preloader__bar i { display: block; height: 100%; width: 100%; background: var(--cyan); transform-origin: left; transform: scaleX(0); box-shadow: 0 0 12px var(--cyan); }
.preloader__meta { display: flex; justify-content: space-between; font-size: .78rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.preloader__count b { color: var(--text); font-weight: 600; font-variant-numeric: tabular-nums; }

/* Cursor ---------------------------------------------------------------- */
.cursor { display: none; }
html.fine-cursor .cursor { display: block; position: fixed; left: 0; top: 0; z-index: 350; pointer-events: none; }
.cursor__dot { position: fixed; left: 0; top: 0; width: 6px; height: 6px; margin: -3px 0 0 -3px; border-radius: 50%; background: var(--cyan); }
.cursor__ring { position: fixed; left: 0; top: 0; width: 38px; height: 38px; margin: -19px 0 0 -19px; border-radius: 50%; border: 1px solid rgba(245,247,250,.45); display: grid; place-items: center; transition: background-color .35s var(--ease), border-color .35s var(--ease); }
.cursor__label { font-size: 6px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--cyan-ink); opacity: 0; transition: opacity .25s; white-space: nowrap; }
.cursor.is-label .cursor__ring { background: var(--cyan); border-color: var(--cyan); }
.cursor.is-label .cursor__label { opacity: 1; }
html.fine-cursor, html.fine-cursor a, html.fine-cursor button { cursor: none; }
html.fine-cursor input { cursor: text; }

/* WebGL + callouts ------------------------------------------------------ */
.webgl { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; display: block; background: radial-gradient(ellipse at 60% 45%, #1f2228 0%, #0c0d10 65%); }
html.has-motion .webgl { opacity: 0; }
html.no-webgl .webgl { display: none; }
.callouts { position: fixed; inset: 0; z-index: 2; pointer-events: none; visibility: hidden; overflow: hidden; }
.callout { position: absolute; left: 0; top: 0; display: flex; align-items: center; will-change: transform, opacity; }
.callout__dot { width: 10px; height: 10px; margin: -5px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 4px rgba(61,224,255,.18), 0 0 16px var(--cyan); flex: none; }
.callout__line { width: clamp(28px, 5vw, 64px); height: 1px; background: linear-gradient(90deg, var(--cyan), rgba(61,224,255,.2)); margin: 0 10px 0 5px; flex: none; }
.callout__body { display: grid; padding: 9px 14px; border-radius: 12px; background: rgba(12,13,16,.72); border: 1px solid var(--line); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); white-space: nowrap; }
.callout__body b { font-family: var(--display); font-size: 1.15rem; font-weight: 600; letter-spacing: -0.02em; line-height: 1.2; }
.callout__body span { font-size: .78rem; color: var(--muted); }
.callout[data-side="left"] { flex-direction: row-reverse; }
.callout__line { transform-origin: left center; will-change: transform; }
.callout[data-side="left"] .callout__line { transform-origin: right center; }
.callout__body { will-change: transform; }
.callout[data-side="left"] .callout__line { margin: 0 5px 0 10px; background: linear-gradient(270deg, var(--cyan), rgba(61,224,255,.2)); }

/* Nav ------------------------------------------------------------------- */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 60; transition: transform .6s var(--ease), background-color .5s var(--ease); }
.nav.is-hidden { transform: translateY(-110%); }
.nav.is-solid { background: rgba(12,13,16,.72); backdrop-filter: blur(16px) saturate(140%); -webkit-backdrop-filter: blur(16px) saturate(140%); border-bottom: 1px solid var(--line); }
.nav__inner { height: var(--nav-h); display: flex; align-items: center; justify-content: space-between; gap: 24px; max-width: 1320px; margin: 0 auto; padding: 0 var(--gutter); }
.nav__logo { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; font-family: var(--display); font-weight: 600; font-size: 1.2rem; letter-spacing: -0.02em; }
.nav__logo svg { width: 22px; height: 22px; color: var(--cyan); }
.nav__links { display: flex; gap: 30px; }
.nav__links a { position: relative; text-decoration: none; font-size: .9rem; color: var(--muted); transition: color .35s var(--ease); padding: 6px 0; }
.nav__links a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: var(--cyan); transform: scaleX(0); transform-origin: right; transition: transform .45s var(--ease); }
.nav__links a:hover { color: var(--text); }
.nav__links a:hover::after { transform: scaleX(1); transform-origin: left; }
.nav__actions { display: flex; align-items: center; gap: 12px; }
.cart-btn { position: relative; width: 44px; height: 44px; display: grid; place-items: center; border-radius: 50%; border: 1px solid var(--line-2); background: rgba(245,247,250,.04); cursor: pointer; transition: border-color .35s var(--ease); }
.cart-btn:hover { border-color: var(--cyan); }
.cart-btn svg { width: 20px; height: 20px; }
.cart-btn__badge { position: absolute; top: -3px; right: -3px; min-width: 19px; height: 19px; padding: 0 5px; border-radius: 999px; background: var(--cyan); color: var(--cyan-ink); font-size: .68rem; font-weight: 700; display: grid; place-items: center; font-variant-numeric: tabular-nums; transform: scale(0); }
.cart-btn.has-items .cart-btn__badge { transform: scale(1); }
.menu-btn { display: none; width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--line-2); background: rgba(245,247,250,.04); cursor: pointer; position: relative; }
.menu-btn i { position: absolute; left: 13px; right: 13px; height: 1.5px; background: var(--text); transition: transform .45s var(--ease); }
.menu-btn i:first-child { top: 18px; }
.menu-btn i:last-child { top: 24px; }
.menu-open .menu-btn i:first-child { transform: translateY(3px) rotate(45deg); }
.menu-open .menu-btn i:last-child { transform: translateY(-3px) rotate(-45deg); }
.mobile-menu { position: fixed; inset: 0; z-index: 55; background: rgba(12,13,16,.96); backdrop-filter: blur(18px); padding: calc(var(--nav-h) + 32px) var(--gutter) 40px; display: flex; flex-direction: column; justify-content: space-between; }
.mobile-menu[hidden] { display: none; }
.mobile-menu nav { display: grid; gap: 6px; }
.mobile-menu a { font-family: var(--display); font-size: clamp(2rem, 9vw, 3rem); font-weight: 600; letter-spacing: -0.03em; text-decoration: none; padding: 4px 0; }
.mobile-menu p { color: var(--muted); font-size: .9rem; }

/* Toast ------------------------------------------------------------------ */
.toast { position: fixed; left: 50%; bottom: 24px; z-index: 70; display: flex; align-items: center; gap: 10px; padding: 12px 18px; border-radius: 999px; background: rgba(27,29,34,.92); border: 1px solid var(--line-2); backdrop-filter: blur(14px); font-size: .9rem; transform: translate(-50%, 140%); opacity: 0; pointer-events: none; transition: transform .55s var(--ease), opacity .4s var(--ease); }
.toast svg { width: 18px; height: 18px; color: var(--cyan); }
.toast.is-on { transform: translate(-50%, 0); opacity: 1; }
.fly-dot { position: fixed; left: 0; top: 0; z-index: 80; width: 12px; height: 12px; margin: -6px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 18px var(--cyan); pointer-events: none; }

/* Track (3D scroll story) ----------------------------------------------- */
.track { position: relative; }
.track-sec { position: relative; }
.hero { height: 100vh; display: flex; flex-direction: column; justify-content: flex-end; padding-bottom: clamp(28px, 6vh, 64px); }
.story { height: 400vh; }
.finishes { height: 400vh; }
.sound { height: 200vh; }
.buy { height: 200vh; }
.sticky { position: sticky; top: 0; height: 100vh; display: flex; align-items: center; overflow: hidden; }

/* Hero */
.hero__content { position: relative; z-index: 1; }
.hero__title { font-size: clamp(3rem, 7.4vw, 7.2rem); font-weight: 600; letter-spacing: -0.055em; line-height: 0.95; margin-bottom: 26px; }
.line-mask { display: block; overflow: hidden; padding-bottom: .06em; margin-bottom: -.06em; }
.line { display: block; }
.hero__sub { max-width: 30em; color: var(--muted); font-size: clamp(1rem, .5vw + .9rem, 1.18rem); margin-bottom: 30px; }
.hero__ctas { display: flex; flex-wrap: wrap; gap: 12px; }
.hero__meta { list-style: none; display: flex; flex-wrap: wrap; gap: 10px 28px; margin-top: clamp(28px, 6vh, 56px); padding-top: 20px; border-top: 1px solid var(--line); font-size: .86rem; color: var(--muted); }
.hero__meta li { display: inline-flex; align-items: center; gap: 9px; }
.hero__meta svg { width: 20px; height: 20px; color: var(--cyan); }
.scroll-hint { position: absolute; right: var(--gutter); bottom: clamp(28px, 6vh, 64px); display: flex; flex-direction: column; align-items: center; gap: 10px; font-size: .7rem; letter-spacing: .2em; text-transform: uppercase; color: var(--muted); }
.scroll-hint i { width: 1px; height: 48px; background: linear-gradient(var(--cyan), transparent); animation: hint 2.2s var(--ease) infinite; transform-origin: top; }
@keyframes hint { 0% { transform: scaleY(0); } 50% { transform: scaleY(1); } 100% { transform: scaleY(1); opacity: 0; } }
.hero__fallback { display: none; }
html.no-webgl .hero__fallback { display: block; position: absolute; right: 6vw; top: 18vh; width: min(42vw, 460px); opacity: .9; }
html.no-webgl .hero__fallback svg { width: 100%; height: auto; aspect-ratio: 1; }

/* Story */
.story__grid { position: relative; height: 100%; display: flex; align-items: flex-end; padding-bottom: 14vh; }
.story__steps { position: relative; width: min(380px, 32vw); height: 40vh; }
.story__step { position: absolute; left: 0; right: 0; bottom: 0; }
html.has-motion .story__step:not(.is-first) { opacity: 0; visibility: hidden; }
.story__step h2, .story__step h3 { font-size: clamp(2rem, 3.6vw, 3.4rem); margin-bottom: 18px; }
.story__step p:not(.eyebrow) { color: var(--muted); }
.story__progress { position: absolute; left: var(--gutter); bottom: 9vh; width: min(380px, 32vw); height: 2px; background: var(--line); border-radius: 2px; overflow: hidden; }
.story__progress i { display: block; height: 100%; background: var(--cyan); transform-origin: left; transform: scaleX(0); }

/* Finishes */
.finishes__grid { display: flex; justify-content: flex-end; }
.finishes__copy { width: min(460px, 42vw); }
.finishes__copy h2 { font-size: clamp(2.2rem, 4vw, 3.8rem); margin-bottom: 16px; }
.finish-list { list-style: none; padding: 0; margin: 30px 0 18px; display: grid; gap: 8px; }
.finish { width: 100%; display: flex; align-items: center; gap: 16px; padding: 12px 14px; border-radius: 16px; border: 1px solid transparent; background: transparent; text-align: left; cursor: pointer; transition: background-color .45s var(--ease), border-color .45s var(--ease); }
.finish i { width: 34px; height: 34px; border-radius: 50%; flex: none; background: linear-gradient(135deg, var(--sw2), var(--sw) 60%); box-shadow: inset 0 0 0 1px rgba(255,255,255,.15); transition: transform .45s var(--ease), box-shadow .45s var(--ease); }
.finish span { display: grid; }
.finish b { font-family: var(--display); font-weight: 600; font-size: 1.05rem; letter-spacing: -0.01em; }
.finish small { color: var(--muted); font-size: .85rem; }
.finish:hover { background: rgba(245,247,250,.04); }
.finish.is-active { border-color: var(--line-2); background: rgba(245,247,250,.05); }
.finish.is-active i { transform: scale(1.08); box-shadow: inset 0 0 0 1px rgba(255,255,255,.2), 0 0 0 3px var(--bg), 0 0 0 4.5px var(--cyan); }
.finishes__now { font-size: .85rem; color: var(--muted); }
.finishes__now b { color: var(--text); }

/* Sound */
.sound__grid { display: flex; flex-direction: column; justify-content: space-between; height: 100%; padding-top: calc(var(--nav-h) + 6vh); padding-bottom: 8vh; }
.sound__copy { max-width: 460px; }
.sound__copy h2 { font-size: clamp(2.2rem, 4vw, 3.8rem); margin-bottom: 16px; }
.sound__stats { display: flex; gap: clamp(20px, 4vw, 48px); justify-content: flex-start; margin: 0; }
.sound__stats div { display: grid; text-align: left; }
.sound__stats dt { font-size: .75rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.sound__stats dd { margin: 4px 0 0; font-family: var(--display); font-size: clamp(1.3rem, 2.2vw, 2rem); font-weight: 600; letter-spacing: -0.03em; }

/* Buy */
.buy__grid { display: grid; grid-template-columns: 1fr minmax(320px, 420px); gap: clamp(32px, 6vw, 96px); align-items: center; }
.buy__copy h2 { font-size: clamp(2.4rem, 5vw, 4.6rem); margin-bottom: 16px; }
.ticks { list-style: none; padding: 0; margin: 26px 0 0; display: grid; gap: 10px; color: var(--muted); }
.ticks li { display: flex; gap: 10px; align-items: center; }
.ticks svg { width: 18px; height: 18px; color: var(--cyan); flex: none; }
.buy-card { border-radius: 28px; border: 1px solid var(--line-2); overflow: hidden; background: linear-gradient(180deg, rgba(245,247,250,.02), rgba(245,247,250,.05)); box-shadow: 0 40px 120px -40px rgba(0,0,0,.8); }
.buy-card__stage { position: relative; height: clamp(220px, 38vh, 340px); background: radial-gradient(circle at 50% 60%, rgba(61,224,255,.08), transparent 65%); border-bottom: 1px solid var(--line); }
.buy-card__fallback { display: none; position: absolute; inset: 12% 18%; width: 64%; height: 76%; }
html.reduced .buy-card__fallback, html.no-webgl .buy-card__fallback { display: block; }
.buy-card__info { padding: 22px 24px 24px; background: rgba(20,22,27,.94); display: grid; gap: 14px; }
.buy-card__info h3 { font-size: 1.5rem; }
.buy-card__info .muted { font-size: .9rem; }
.rating { display: flex; align-items: center; gap: 10px; font-size: .85rem; color: var(--muted); }
.stars { display: inline-flex; gap: 2px; color: var(--warm); }
.stars svg { width: 15px; height: 15px; }
.stars svg.off { color: #3a3f48; }
.stock { display: flex; align-items: center; gap: 8px; font-size: .85rem; color: var(--muted); }
.stock i { width: 8px; height: 8px; border-radius: 50%; background: #4ade80; box-shadow: 0 0 10px #4ade80; }
.add-btn__icon { position: absolute; opacity: 0; transform: scale(.4); transition: transform .45s var(--ease), opacity .3s; }
.add-btn.is-added .add-btn__label { opacity: 0; }
.add-btn.is-added .add-btn__icon { opacity: 1; transform: scale(1); }
.add-btn__label { transition: opacity .3s; }
.add-btn:hover svg { transform: none; }
.add-btn.is-added:hover .add-btn__icon { transform: scale(1); }

/* Generic sections ------------------------------------------------------ */
.section { position: relative; background: var(--bg); padding: clamp(88px, 14vh, 160px) 0; }
.section-head { margin-bottom: clamp(40px, 7vh, 72px); }
.section-head h2 { font-size: clamp(2.2rem, 5vw, 4.4rem); max-width: 14em; }
.word-mask { display: inline-block; overflow: hidden; vertical-align: top; padding-bottom: .08em; margin-bottom: -.08em; }
.word { display: inline-block; }

/* Specs */
.specs { background: linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%); border-top: 1px solid var(--line); }
.specs__grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.spec { padding: clamp(24px, 3vw, 40px); border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); display: grid; gap: 10px; align-content: start; min-height: 190px; transition: background-color .5s var(--ease); }
.spec:hover { background: rgba(61,224,255,.04); }
.spec b { font-family: var(--display); font-weight: 600; font-size: clamp(2.2rem, 3.6vw, 3.4rem); letter-spacing: -0.04em; line-height: 1; font-variant-numeric: tabular-nums; }
.spec span { color: var(--muted); font-size: .92rem; }

/* Shop (horizontal) */
.shop { position: relative; background: var(--bg-2); }
.shop__pin { min-height: 100vh; display: flex; flex-direction: column; justify-content: center; padding: calc(var(--nav-h) + 24px) 0 48px; overflow: hidden; }
.shop__head { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; margin-bottom: clamp(28px, 5vh, 52px); }
.shop__head h2 { font-size: clamp(2.2rem, 5vw, 4.4rem); }
.shop__head .lead { max-width: 22em; }
.shop__viewport { width: 100%; }
.shop__rail { list-style: none; margin: 0; padding: 0 var(--gutter); display: flex; gap: clamp(14px, 1.6vw, 24px); width: max-content; will-change: transform; }
.product { position: relative; width: clamp(260px, 26vw, 340px); flex: none; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); overflow: hidden; transition: border-color .5s var(--ease), transform .6s var(--ease); }
.product:hover { border-color: var(--line-2); transform: translateY(-4px); }
.product__media { margin: 0; aspect-ratio: 5 / 4; background: radial-gradient(circle at 50% 40%, color-mix(in srgb, var(--bg) 60%, #3a4250) 0%, var(--bg) 75%); background-color: var(--bg); display: grid; place-items: center; overflow: hidden; }
.product__media svg { width: 78%; height: auto; transition: transform .8s var(--ease); }
.product:hover .product__media svg { transform: scale(1.05); }
.product__body { padding: 20px 20px 18px; }
.product__body h3 { font-size: 1.25rem; margin-bottom: 6px; }
.product__body p { color: var(--muted); font-size: .88rem; min-height: 2.8em; }
.product__foot { display: flex; align-items: center; justify-content: space-between; margin-top: 16px; }
.price { font-family: var(--display); font-weight: 600; font-size: 1.25rem; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.price s { color: var(--muted); font-weight: 400; font-size: .95rem; margin-right: 4px; }
.price em { font-style: normal; color: var(--warm); }
.add { position: relative; width: 46px; height: 46px; border-radius: 50%; border: 1px solid var(--line-2); background: rgba(245,247,250,.04); cursor: pointer; display: grid; place-items: center; transition: background-color .4s var(--ease), border-color .4s var(--ease), color .4s var(--ease), transform .2s var(--ease); touch-action: manipulation; }
.add:hover { border-color: var(--cyan); }
.add:active { transform: scale(.94); }
.add svg { position: absolute; width: 20px; height: 20px; transition: transform .45s var(--ease), opacity .3s; }
.add__check { opacity: 0; transform: scale(.3) rotate(-30deg); }
.add.is-added { background: var(--cyan); border-color: var(--cyan); color: var(--cyan-ink); }
.add.is-added .add__plus { opacity: 0; transform: scale(.3) rotate(90deg); }
.add.is-added .add__check { opacity: 1; transform: none; }

/* Compare */
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--line); background: var(--surface); }
.compare__table { width: 100%; min-width: 640px; border-collapse: collapse; font-size: .95rem; }
.compare__table th, .compare__table td { padding: 18px 22px; text-align: left; border-bottom: 1px solid var(--line); }
.compare__table tbody tr:last-child th, .compare__table tbody tr:last-child td { border-bottom: 0; }
.compare__table thead th { font-family: var(--display); font-weight: 600; font-size: 1.1rem; letter-spacing: -0.02em; vertical-align: bottom; }
.compare__table thead small { display: block; font-family: var(--body); font-size: .82rem; color: var(--muted); font-weight: 500; letter-spacing: 0; margin-top: 2px; }
.compare__table tbody th { font-weight: 500; color: var(--muted); }
.compare__table .is-hero { background: rgba(61,224,255,.06); color: var(--text); }
.compare__table thead .is-hero { color: var(--cyan); box-shadow: inset 0 2px 0 var(--cyan); }
.yes { color: var(--cyan); font-weight: 600; }

/* Why */
.why { background: var(--bg); }
.why__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.why__card { padding: 30px 26px; border-radius: var(--radius); background: linear-gradient(180deg, var(--surface-2), var(--surface)); border: 1px solid var(--line); transition: border-color .5s var(--ease), transform .6s var(--ease); }
.why__card:hover { border-color: rgba(61,224,255,.35); transform: translateY(-4px); }
.why__card svg { width: 38px; height: 38px; color: var(--cyan); margin-bottom: 28px; }
.why__card h3 { font-size: 1.3rem; margin-bottom: 10px; }
.why__card p { color: var(--muted); font-size: .93rem; }

/* Reviews */
.reviews { background: linear-gradient(180deg, var(--bg), var(--bg-2)); }
.reviews__head { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; flex-wrap: wrap; }
.reviews__score { display: flex; align-items: center; gap: 16px; }
.reviews__score b { font-family: var(--display); font-size: clamp(3rem, 6vw, 5rem); font-weight: 600; letter-spacing: -0.05em; line-height: 1; font-variant-numeric: tabular-nums; }
.reviews__score > div { display: grid; gap: 6px; font-size: .85rem; }
.reviews__score .stars svg { width: 18px; height: 18px; }
.reviews__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.review { margin: 0; padding: 28px 24px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); display: flex; flex-direction: column; gap: 18px; }
.review blockquote { margin: 0; font-size: 1rem; line-height: 1.55; flex: 1; }
.review figcaption { display: grid; font-size: .85rem; }
.review figcaption span { color: var(--muted); }

/* Stores + newsletter */
.stores { background: var(--bg-2); }
.stores__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.store { padding: 14px 14px 24px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); }
.store__map { margin: 0 0 18px; border-radius: 14px; overflow: hidden; background: #14161b; aspect-ratio: 2 / 1; }
.store__map svg { width: 100%; height: 100%; }
.store h3 { font-size: 1.2rem; margin: 0 10px 6px; }
.store p { margin: 0 10px; font-size: .92rem; }
.newsletter { margin-top: clamp(48px, 8vh, 80px); padding: clamp(28px, 4vw, 48px); border-radius: 28px; border: 1px solid var(--line-2); background: radial-gradient(circle at 100% 0%, rgba(61,224,255,.12), transparent 50%), var(--surface); display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: center; }
.newsletter h3 { font-size: clamp(1.6rem, 3vw, 2.4rem); margin-bottom: 10px; }
.newsletter__form label { display: block; font-size: .85rem; font-weight: 500; margin-bottom: 8px; }
.newsletter__row { display: flex; gap: 10px; }
.newsletter__row input { flex: 1; min-width: 0; min-height: 54px; padding: 0 20px; border-radius: 999px; border: 1px solid var(--line-2); background: rgba(12,13,16,.6); color: var(--text); font: inherit; font-size: 1rem; transition: border-color .35s var(--ease); }
.newsletter__row input::placeholder { color: #7d838e; }
.newsletter__row input:focus { outline: none; border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(61,224,255,.2); }
.newsletter__row input[aria-invalid="true"] { border-color: var(--warm); }
.newsletter__msg { min-height: 1.5em; margin-top: 10px; font-size: .88rem; }
.newsletter__msg.is-error { color: var(--warm); }
.newsletter__msg.is-ok { color: var(--cyan); }

/* Footer */
.footer { background: var(--bg); border-top: 1px solid var(--line); padding: 40px 0 28px; }
.footer__big { font-family: var(--display); font-weight: 600; font-size: clamp(5rem, 22vw, 22rem); letter-spacing: -0.07em; line-height: .8; background: linear-gradient(180deg, #2a2d34, rgba(12,13,16,0)); -webkit-background-clip: text; background-clip: text; color: transparent; margin-bottom: 40px; user-select: none; }
.footer__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; padding-bottom: 36px; border-bottom: 1px solid var(--line); }
.footer h4 { font-family: var(--body); font-size: .75rem; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); font-weight: 600; margin-bottom: 12px; }
.footer p { font-size: .93rem; line-height: 1.8; }
.footer a { text-decoration: none; transition: color .3s var(--ease); }
.footer a:hover { color: var(--cyan); }
.footer__base { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; padding-top: 22px; font-size: .82rem; color: var(--muted); }
.footer__base a { color: var(--text); border-bottom: 1px solid var(--line-2); }

/* Motion guards ---------------------------------------------------------- */
html.has-motion [data-hero],
html.has-motion [data-reveal],
html.has-motion [data-reveal-item],
html.has-motion [data-split] { visibility: hidden; }

/* Reduced motion: static stacked layout, everything visible */
html.reduced .track-sec { height: auto; min-height: 100vh; }
html.reduced .sticky { position: relative; height: auto; min-height: 100vh; padding: 120px 0; }
html.reduced .story__steps { height: auto; display: grid; gap: 56px; }
html.reduced .story__step { position: relative; bottom: auto; }
html.reduced .story__progress, html.reduced .scroll-hint i { display: none; }
html.reduced .shop__viewport { overflow-x: auto; padding-bottom: 12px; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* Responsive ------------------------------------------------------------- */
@media (max-width: 1080px) {
  .specs__grid { grid-template-columns: repeat(2, 1fr); }
  .why__grid, .reviews__grid { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .nav__links { display: none; }
  .menu-btn { display: block; }
  .story__steps { width: 100%; height: 34vh; }
  .story__grid { padding-bottom: 12vh; }
  .story__step h2, .story__step h3 { font-size: clamp(1.7rem, 7vw, 2.4rem); margin-bottom: 10px; }
  .story__step p:not(.eyebrow) { font-size: .95rem; }
  .story__progress { width: calc(100% - 2 * var(--gutter)); bottom: 6vh; }
  .finishes__grid { justify-content: stretch; align-items: flex-end; height: 100%; padding-bottom: 5vh; }
  .finishes .sticky { align-items: flex-end; }
  .finishes__copy { width: 100%; }
  .finishes__copy h2 { font-size: clamp(1.8rem, 7vw, 2.6rem); }
  .finishes__copy .lead { display: none; }
  .finish-list { grid-template-columns: repeat(4, 1fr); margin: 18px 0 10px; }
  .finish { flex-direction: column; gap: 6px; padding: 10px 4px; text-align: center; }
  .finish small { display: none; }
  .finish b { font-size: .85rem; }
  .sound__stats { justify-content: space-between; }
  .buy__grid { grid-template-columns: 1fr; gap: 20px; }
  .buy .sticky { align-items: flex-start; padding-top: calc(var(--nav-h) + 8px); }
  .buy__copy .lead, .ticks { display: none; }
  .buy__copy h2 { font-size: clamp(2rem, 8vw, 2.8rem); margin-bottom: 0; }
  .buy__copy .eyebrow { margin-bottom: 10px; }
  .buy-card { max-width: 420px; width: 100%; margin: 0 auto; }
  .buy-card__stage { height: clamp(180px, 30vh, 260px); }
  .shop__head { flex-direction: column; align-items: flex-start; }
  .newsletter { grid-template-columns: 1fr; }
  .scroll-hint { display: none; }
}
@media (max-width: 600px) {
  .nav__buy { display: none; }
  .hero__ctas .btn { flex: 1 1 auto; padding: 0 18px; }
  .hero__meta { display: none; }
  .hero__meta { font-size: .8rem; gap: 8px 18px; }
  .specs__grid { grid-template-columns: 1fr 1fr; }
  .spec { min-height: 150px; padding: 20px 16px; }
  .why__grid, .reviews__grid, .stores__grid { grid-template-columns: 1fr; }
  .newsletter__row { flex-direction: column; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .callout__body span { display: none; }
  .callout__body { padding: 6px 10px; }
  .callout__body b { font-size: .95rem; }
  .callout__line { width: 18px; }
  .product { width: 78vw; }
}
@media (max-height: 640px) and (min-width: 861px) {
  .hero__title { font-size: clamp(2.6rem, 6.4vw, 6rem); }
  .hero__meta { margin-top: 20px; }
}