/* =========================================================
   ULTIMOCALL — true wireless audio
   Palette: signal violet on midnight, with a lime accent for the
   figures the products are actually bought on (hours, dB, IP).
   Earbud illustrations carry the four finishes every model ships in.
   ========================================================= */

:root{
  --ink:        #0a0b12;
  --ink-2:      #11131f;
  --ink-3:      #191c2c;
  --paper:      #f7f7fb;
  --paper-2:    #eeeff6;
  --paper-3:    #e1e3ee;

  --violet:     #6d4aff;
  --violet-lt:  #a892ff;
  --violet-pale:#eee9ff;
  --violet-deep:#4b2fc9;

  --lime:       #c6f24a;
  --lime-deep:  #5c7a00;

  /* finish colourway — the four shells every model ships in */
  --tone-a:     #7f8dbb;   /* midnight */
  --tone-b:     #b0a798;   /* chalk */
  --tone-c:     #c09a63;   /* sand */
  --tone-d:     #5f9ec9;   /* cobalt */

  --txt:        #0f1119;
  --txt-2:      #4f5468;
  --txt-3:      #7b8095;
  --on-dark:    #eef0fa;
  --on-dark-2:  #a3a8c2;

  --line:       rgba(15,17,25,.11);
  --line-dark:  rgba(168,146,255,.18);

  --disp: "Sora", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", "PingFang SC",
          "Microsoft YaHei", "Hiragino Sans GB", sans-serif;

  --wrap: 1240px;
  --r:    16px;
  --ease: cubic-bezier(.22,.75,.3,1);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; scroll-padding-top:96px; -webkit-text-size-adjust:100%; }
body{
  margin:0; background:var(--paper); color:var(--txt);
  font-family:var(--sans); font-size:16px; line-height:1.65;
  font-weight:400; letter-spacing:.004em;
  -webkit-font-smoothing:antialiased; overflow-x:hidden;
}
img,svg{ max-width:100%; }
a{ color:inherit; text-decoration:none; }
h1,h2,h3,h4{ margin:0; font-family:var(--disp); font-weight:600; line-height:1.15; letter-spacing:-.02em; }
p{ margin:0; }
ul,ol,dl,dd{ margin:0; padding:0; list-style:none; }
button,input,select,textarea{ font:inherit; color:inherit; }
.sprite{ position:absolute; width:0; height:0; overflow:hidden; }
:focus-visible{ outline:2px solid var(--violet); outline-offset:3px; border-radius:5px; }

.wrap{ width:100%; max-width:var(--wrap); margin-inline:auto; padding-inline:clamp(18px,4vw,40px); }
/* grid children default to min-width:auto, which lets long words widen a column */
.hero__copy,.split__copy,.ftr__brand{ min-width:0; }
.wrap--narrow{ max-width:900px; }
.ic{ width:18px; height:18px; flex:0 0 auto; display:inline-block; vertical-align:middle; }
.ic--lg{ width:26px; height:26px; }

/* ---------- product illustration ---------- */
.unit{
  color:var(--tone-a);
  width:auto; aspect-ratio:120/160; display:block;
  filter:drop-shadow(0 14px 20px rgba(15,17,25,.16));
}
.tone-a{ color:var(--tone-a); }
.tone-b{ color:var(--tone-b); }
.tone-c{ color:var(--tone-c); }
.tone-d{ color:var(--tone-d); }

.unit--cat{ height:106px; }
.unit--card{ height:150px; }
.unit--hero{ height:clamp(150px,17vw,215px); }
.sec--dark .unit, .hero .unit{ filter:drop-shadow(0 16px 30px rgba(0,0,0,.55)); }
.sec--dark .tone-a, .hero .tone-a{ color:#a3b0dd; }
.sec--dark .tone-b, .hero .tone-b{ color:#d6cec0; }
.sec--dark .tone-c, .hero .tone-c{ color:#e0b87e; }
.sec--dark .tone-d, .hero .tone-d{ color:#7cc0ec; }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:.6em;
  padding:.92em 1.55em; border-radius:100px; border:1px solid transparent;
  font-family:var(--disp); font-size:.95rem; font-weight:500; letter-spacing:.005em; cursor:pointer;
  transition:transform .25s var(--ease), background .25s, color .25s, border-color .25s, box-shadow .25s;
}
.btn--sm{ padding:.6em 1.15em; font-size:.88rem; }
.btn--solid{ background:var(--lime); color:var(--ink); box-shadow:0 8px 22px -10px rgba(198,242,74,.85); }
.btn--solid:hover{ background:#d3f96a; transform:translateY(-2px); box-shadow:0 14px 30px -12px rgba(198,242,74,.9); }
.btn--ghost{ border-color:var(--line); color:var(--txt); background:transparent; }
.btn--ghost:hover{ border-color:var(--violet); color:var(--violet-deep); background:rgba(109,74,255,.07); transform:translateY(-2px); }
.sec--dark .btn--ghost, .hero .btn--ghost{ border-color:var(--line-dark); color:var(--on-dark); }
.sec--dark .btn--ghost:hover, .hero .btn--ghost:hover{ border-color:var(--violet-lt); color:var(--violet-lt); background:rgba(168,146,255,.12); }
.btn .ic{ width:17px; height:17px; transition:transform .3s var(--ease); }
.btn:hover .ic{ transform:translateX(4px); }

/* ---------- topbar ---------- */
.topbar{ background:var(--ink); color:var(--on-dark-2); font-size:.78rem; }
.topbar__in{ display:flex; align-items:center; justify-content:space-between; gap:20px; min-height:40px; flex-wrap:wrap; }
.topbar__note{ display:flex; align-items:center; gap:.55em; letter-spacing:.015em; }
.topbar__note .ic{ width:15px; height:15px; color:var(--lime); }
.topbar__right{ display:flex; align-items:center; gap:20px; }
.topbar__link{ display:inline-flex; align-items:center; gap:.45em; transition:color .2s; }
.topbar__link .ic{ width:14px; height:14px; opacity:.7; }
.topbar__link:hover{ color:var(--violet-lt); }
.topbar__link--plain{ cursor:default; }
.topbar__link--plain:hover{ color:inherit; }

/* ---------- header ---------- */
.hdr{
  position:sticky; top:0; z-index:60;
  background:rgba(247,247,251,.85); backdrop-filter:blur(14px) saturate(1.4);
  border-bottom:1px solid transparent; transition:box-shadow .3s, border-color .3s, background .3s;
}
.hdr.is-stuck{ border-bottom-color:var(--line); box-shadow:0 10px 30px -22px rgba(15,17,25,.6); }
.hdr__in{ display:flex; align-items:center; justify-content:space-between; gap:28px; min-height:74px; }

.brand{ display:flex; align-items:center; gap:11px; }
.brand__mark{ width:38px; height:38px; color:var(--violet); display:block; flex:0 0 auto; }
.brand__mark svg{ width:100%; height:100%; }
.brand__txt{ display:flex; flex-direction:column; line-height:1.1; }
.brand__name{ font-family:var(--disp); font-size:1.08rem; font-weight:700; letter-spacing:.14em; }
.brand__desc{ font-size:.63rem; letter-spacing:.17em; text-transform:uppercase; color:var(--violet-deep); font-weight:600; margin-top:3px; }

.nav{ display:flex; align-items:center; gap:clamp(14px,1.9vw,28px); }
.nav > a{ font-size:.9rem; font-weight:450; color:var(--txt-2); position:relative; padding:4px 0; transition:color .2s; white-space:nowrap; }
.nav > a::after{ content:""; position:absolute; left:0; bottom:0; height:2px; width:0; background:var(--violet); border-radius:2px; transition:width .3s var(--ease); }
.nav > a:hover{ color:var(--txt); } .nav > a:hover::after{ width:100%; }
.nav > a.is-active{ color:var(--txt); } .nav > a.is-active::after{ width:100%; }
.nav__cta{ color:var(--ink) !important; }
.nav__cta::after{ display:none; }
.nav__close{ display:none; }
.burger{
  display:none; background:transparent; border:1px solid var(--line);
  border-radius:11px; padding:8px 10px; cursor:pointer; color:var(--txt);
}

/* ---------- hero ---------- */
.hero{
  position:relative; overflow:hidden;
  background:linear-gradient(168deg, var(--ink) 0%, var(--ink-2) 52%, var(--ink-3) 100%);
  color:var(--on-dark);
  padding-block:clamp(56px,7vw,92px) clamp(64px,8vw,110px);
}
.hero__glow{
  position:absolute; inset:auto -10% -45% 32%; height:120%;
  background:radial-gradient(closest-side, rgba(109,74,255,.42), transparent 72%);
  pointer-events:none;
}
.hero::after{
  content:""; position:absolute; inset:0; pointer-events:none; opacity:.5;
  background-image:linear-gradient(rgba(168,146,255,.07) 1px, transparent 1px),
                   linear-gradient(90deg, rgba(168,146,255,.07) 1px, transparent 1px);
  background-size:52px 52px;
  mask-image:radial-gradient(120% 90% at 20% 20%, #000, transparent 75%);
}
.hero__in{ position:relative; z-index:1; display:grid; grid-template-columns:1.02fr .98fr; gap:clamp(30px,4vw,60px); align-items:center; }

.eyebrow{
  font-family:var(--disp); font-size:.74rem; font-weight:600; letter-spacing:.19em;
  text-transform:uppercase; color:var(--violet-deep);
  display:flex; align-items:center; gap:.7em;
}
.eyebrow::before{ content:""; width:26px; height:2px; border-radius:2px; background:var(--lime-deep); flex:0 0 auto; }
.hero .eyebrow, .sec--dark .eyebrow{ color:var(--violet-lt); }
.hero .eyebrow::before, .sec--dark .eyebrow::before{ background:var(--lime); }

.hero__h1{
  margin-top:20px; font-size:clamp(2.3rem,5vw,3.9rem); font-weight:600;
  line-height:1.07; letter-spacing:-.03em;
}
.hero__h1 em{ font-style:normal; color:var(--lime); }
.hero__lede{ margin-top:20px; max-width:56ch; color:var(--on-dark-2); font-size:1.06rem; line-height:1.7; }
.hero__cta{ margin-top:32px; display:flex; gap:14px; flex-wrap:wrap; }

.hero__stats{
  margin-top:44px; padding-top:28px; border-top:1px solid var(--line-dark);
  display:grid; grid-template-columns:repeat(4,1fr); gap:18px;
}
.hero__stats b{
  display:block; font-family:var(--disp); font-size:clamp(1.55rem,2.5vw,2.1rem);
  font-weight:600; color:#fff; letter-spacing:-.02em; line-height:1;
}
.hero__stats span{ display:block; margin-top:7px; font-size:.79rem; color:var(--on-dark-2); letter-spacing:.02em; }

/* ---------- hero art: a bench of buds and cases ---------- */
.hero__art{ display:flex; justify-content:center; }
.bench{ display:flex; flex-direction:column; gap:clamp(14px,2vw,26px); width:100%; max-width:560px; }
.bench__row{
  display:flex; align-items:flex-end; justify-content:center;
  gap:clamp(10px,2.2vw,30px); padding-bottom:16px;
  border-bottom:1px solid var(--line-dark);
}
.bench__row:last-child{ border-bottom:none; padding-bottom:0; }

/* ---------- page hero (sub-pages) ---------- */
/* Shorter, single-column version of .hero, so /about, /contact, /privacy and
   /terms open the same way the homepage does without repeating its art. */
.phero{
  position:relative; overflow:hidden;
  background:linear-gradient(168deg, var(--ink) 0%, var(--ink-2) 60%, var(--ink-3) 100%);
  color:var(--on-dark); padding-block:clamp(40px,5.4vw,70px);
}
.phero::after{
  content:""; position:absolute; inset:0; pointer-events:none; opacity:.45;
  background-image:linear-gradient(rgba(168,146,255,.07) 1px, transparent 1px),
                   linear-gradient(90deg, rgba(168,146,255,.07) 1px, transparent 1px);
  background-size:52px 52px;
  mask-image:radial-gradient(120% 90% at 15% 15%, #000, transparent 78%);
}
.phero__in{ position:relative; z-index:1; max-width:840px; }
.phero h1{ margin-top:15px; font-size:clamp(1.95rem,4.2vw,2.9rem); line-height:1.1; letter-spacing:-.03em; }
.phero__lede{ margin-top:16px; max-width:64ch; color:var(--on-dark-2); font-size:1.04rem; line-height:1.72; }
.phero__updated{ margin-top:20px; font-size:.8rem; letter-spacing:.04em; color:#8c90a8; }

.crumb{ display:flex; align-items:center; gap:.55em; font-size:.79rem; color:var(--on-dark-2); }
.crumb a{ transition:color .2s; }
.crumb a:hover{ color:var(--violet-lt); }
.crumb span{ color:#8c90a8; }

/* ---------- long-form prose (legal pages) ---------- */
.prose{ max-width:74ch; }
.prose > * + *{ margin-top:17px; }
.prose h2{ margin-top:40px; font-size:1.28rem; }
.prose h2:first-child{ margin-top:0; }
.prose h3{ margin-top:26px; font-size:1.03rem; }
.prose p, .prose li{ color:var(--txt-2); font-size:.97rem; line-height:1.76; }
.prose ul{ display:flex; flex-direction:column; gap:8px; padding-left:20px; list-style:disc; }
.prose li::marker{ color:var(--violet); }
.prose a{ color:var(--violet-deep); text-decoration:underline; text-underline-offset:2px; }
.prose a:hover{ color:var(--lime-deep); }
.prose strong{ color:var(--txt); font-weight:600; }
.prose code{
  padding:.12em .42em; border-radius:5px; background:var(--paper-2);
  border:1px solid var(--line); font-size:.88em;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.prose__note{
  padding:18px 22px; border-left:3px solid var(--violet);
  background:var(--paper-2); border-radius:0 12px 12px 0;
}
.prose__note p{ font-size:.93rem; }
.prose__note p + p{ margin-top:10px; }

.docnav{ margin-top:clamp(38px,4vw,56px); padding-top:26px; border-top:1px solid var(--line); display:flex; gap:14px; flex-wrap:wrap; }

/* ---------- marquee ---------- */
.marquee{
  background:var(--ink-2); color:var(--on-dark-2); overflow:hidden;
  border-block:1px solid var(--line-dark); padding-block:13px;
}
.marquee__track{
  display:flex; align-items:center; gap:26px; width:max-content;
  font-family:var(--disp); font-size:.78rem; font-weight:500; letter-spacing:.2em; white-space:nowrap;
  animation:slide 42s linear infinite;
}
.marquee__track i{ color:var(--lime); font-style:normal; font-size:.6rem; }
@keyframes slide{ from{ transform:translateX(0); } to{ transform:translateX(-50%); } }

/* ---------- section shell ---------- */
.sec{ padding-block:clamp(62px,7.5vw,104px); }
.sec--tint{ background:var(--paper-2); }
.sec--dark{ background:var(--ink); color:var(--on-dark); }
.sec__head{ max-width:760px; margin-bottom:clamp(34px,4vw,54px); }
.sec__title{ margin-top:16px; font-size:clamp(1.75rem,3.4vw,2.65rem); line-height:1.12; }
.sec__lede{ margin-top:16px; color:var(--txt-2); font-size:1.02rem; line-height:1.72; }
.sec--dark .sec__lede{ color:var(--on-dark-2); }
/* a{color:inherit;text-decoration:none} in the reset would make an in-copy link
   invisible, so lede links opt back in explicitly */
.sec__lede a{ color:var(--violet-deep); text-decoration:underline; text-underline-offset:2px; }
.sec__lede a:hover{ color:var(--lime-deep); }
.sec--dark .sec__lede a{ color:var(--violet-lt); }
.sec--dark .sec__lede a:hover{ color:var(--lime); }

/* ---------- categories ---------- */
.cats{ display:grid; grid-template-columns:repeat(3,1fr); gap:clamp(14px,1.8vw,24px); }
.cat{
  background:#fff; border:1px solid var(--line); border-radius:var(--r);
  padding:30px 26px 26px; text-align:center;
  transition:transform .3s var(--ease), box-shadow .3s, border-color .3s;
}
.cat .unit{ margin:0 auto 16px; }
.cat:hover{ transform:translateY(-5px); border-color:transparent; box-shadow:0 24px 44px -26px rgba(15,17,25,.42); }
.cat h3{ font-size:1.16rem; }
.cat p{ margin-top:9px; color:var(--txt-2); font-size:.92rem; }
.cat__meta{
  display:inline-block; margin-top:16px; padding:5px 13px; border-radius:100px;
  background:var(--violet-pale); color:var(--violet-deep);
  font-size:.73rem; font-weight:600; letter-spacing:.04em;
}

/* ---------- drivers ---------- */
.drvs{ display:grid; grid-template-columns:repeat(3,1fr); gap:clamp(14px,1.6vw,20px); }
.drv{
  background:rgba(255,255,255,.035); border:1px solid var(--line-dark);
  border-radius:var(--r); padding:28px 24px; display:flex; flex-direction:column;
  transition:background .3s, border-color .3s, transform .3s var(--ease);
}
.drv:hover{ background:rgba(168,146,255,.09); border-color:rgba(168,146,255,.36); transform:translateY(-4px); }
.drv__top{ display:flex; align-items:baseline; gap:12px; }
.drv__no{ font-family:var(--disp); font-size:.8rem; font-weight:600; color:var(--lime); letter-spacing:.1em; }
.drv__top h3{ font-size:1.14rem; }
.drv__use{ margin-top:10px; color:var(--violet-lt); font-size:.83rem; letter-spacing:.01em; }
.specs{ margin-top:20px; display:flex; flex-direction:column; gap:1px; background:var(--line-dark); border-radius:10px; overflow:hidden; }
.specs li{
  display:flex; justify-content:space-between; align-items:baseline; gap:10px;
  padding:9px 13px; background:var(--ink); font-size:.83rem;
}
.specs span{ color:var(--on-dark-2); }
.specs b{ font-weight:600; color:#fff; font-family:var(--disp); }
.drv__note{ margin-top:auto; padding-top:18px; color:var(--on-dark-2); font-size:.85rem; line-height:1.6; }

/* ---------- filter chips ---------- */
.chips{ display:flex; flex-wrap:wrap; gap:9px; margin-bottom:30px; }
.chip{
  padding:.5em 1.15em; border-radius:100px; border:1px solid var(--line);
  background:#fff; color:var(--txt-2); font-size:.87rem; cursor:pointer;
  transition:background .22s, color .22s, border-color .22s, transform .22s var(--ease);
}
.chip:hover{ border-color:var(--violet); color:var(--violet-deep); transform:translateY(-1px); }
.chip.is-on{ background:var(--ink); border-color:var(--ink); color:#fff; }

/* ---------- model grid ---------- */
.grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:clamp(14px,1.8vw,24px); }
.card{
  background:#fff; border:1px solid var(--line); border-radius:var(--r);
  overflow:hidden; display:flex; flex-direction:column;
  transition:transform .3s var(--ease), box-shadow .3s, border-color .3s;
}
.card:hover{ transform:translateY(-5px); border-color:transparent; box-shadow:0 26px 46px -28px rgba(15,17,25,.48); }
.card.is-hidden{ display:none; }
.card__art{
  display:flex; align-items:center; justify-content:center; padding:30px 20px 22px;
  background:linear-gradient(160deg, var(--paper-2), var(--paper-3));
  border-bottom:1px solid var(--line);
}
/* Photographed products. The tile is a fixed 9:16 — the campaign posters' own
   shape — so the grid stays even, and the image inside is `contain`, never
   `cover`: an image is only ever scaled down to fit, so nothing is stretched
   out of proportion and nothing is cropped, whatever ratio the source is.
   Loop's card is the one square source; it letterboxes onto the white tile,
   which is invisible because that shot is itself on white. */
.card__art--photo{ padding:0; background:#fff; aspect-ratio:1024/1792; }
.card__art--photo img{ display:block; width:100%; height:100%; object-fit:contain; }
.card__body{ padding:22px 24px 26px; display:flex; flex-direction:column; flex:1; }
.card__title{ font-size:1.1rem; }
.card__spec{ margin-top:9px; color:var(--txt-2); font-size:.9rem; line-height:1.62; }
.tags{ margin-top:16px; padding-top:16px; border-top:1px dashed var(--line); display:flex; flex-wrap:wrap; gap:7px; }
.tag{
  padding:4px 11px; border-radius:100px; background:var(--paper-2);
  color:var(--txt-2); font-size:.72rem; font-weight:500; letter-spacing:.03em;
}
.tag--hi{ background:var(--violet-pale); color:var(--violet-deep); font-weight:600; }
.grid__empty{ margin-top:28px; text-align:center; color:var(--txt-3); }

/* ---------- process ---------- */
.steps{ display:grid; grid-template-columns:repeat(4,1fr); gap:clamp(14px,1.6vw,22px); }
.steps--3{ grid-template-columns:repeat(3,1fr); }
.step{
  background:#fff; border:1px solid var(--line); border-radius:var(--r);
  padding:26px 22px; position:relative; overflow:hidden;
  transition:transform .3s var(--ease), box-shadow .3s;
}
.step::before{
  content:""; position:absolute; left:0; top:0; width:100%; height:3px;
  background:linear-gradient(90deg, var(--violet), var(--lime)); transform:scaleX(0); transform-origin:left;
  transition:transform .4s var(--ease);
}
.step:hover{ transform:translateY(-4px); box-shadow:0 22px 40px -26px rgba(15,17,25,.42); }
.step:hover::before{ transform:scaleX(1); }
.step__no{ font-family:var(--disp); font-size:1.9rem; font-weight:600; color:var(--paper-3); letter-spacing:-.03em; line-height:1; }
.step h3{ margin-top:10px; font-size:1.05rem; }
.step p{ margin-top:9px; color:var(--txt-2); font-size:.89rem; line-height:1.6; }

/* ---------- split: copy beside panels or a diagram ---------- */
.split{ display:grid; grid-template-columns:1.05fr .95fr; gap:clamp(30px,4vw,60px); align-items:center; }
.split__list{ margin-top:28px; display:flex; flex-direction:column; gap:13px; }
.split__list li{ display:flex; gap:12px; align-items:flex-start; color:var(--on-dark-2); font-size:.95rem; line-height:1.55; }
.split__list .ic{ color:var(--lime); margin-top:3px; }
/* the /about "what we do not claim" list leads each item with a bold clause */
.split__list strong{ color:var(--on-dark); font-weight:600; }
.sec:not(.sec--dark) .split__list li{ color:var(--txt-2); }
.sec:not(.sec--dark) .split__list strong{ color:var(--txt); }
.sec:not(.sec--dark) .split__list .ic{ color:var(--violet-deep); }

.panels{ display:grid; grid-template-columns:repeat(2,1fr); gap:clamp(12px,1.4vw,18px); }
.panel{
  background:rgba(255,255,255,.04); border:1px solid var(--line-dark);
  border-radius:var(--r); padding:30px 24px; text-align:center;
  transition:background .3s, border-color .3s, transform .3s var(--ease);
}
.panel:hover{ background:rgba(168,146,255,.1); border-color:rgba(168,146,255,.36); transform:translateY(-4px); }
.panel b{ display:block; font-family:var(--disp); font-size:clamp(1.7rem,2.8vw,2.3rem); font-weight:600; color:#fff; line-height:1; letter-spacing:-.02em; }
.panel span{ display:block; margin-top:9px; font-size:.8rem; color:var(--on-dark-2); }
.sec:not(.sec--dark) .panel{ background:#fff; border-color:var(--line); }
.sec:not(.sec--dark) .panel b{ color:var(--txt); }
.sec:not(.sec--dark) .panel span{ color:var(--txt-2); }
.sec:not(.sec--dark) .panel:hover{ background:#fff; border-color:var(--violet); }

.checks{
  margin-top:clamp(28px,3.4vw,44px); display:grid; grid-template-columns:repeat(2,1fr);
  gap:14px clamp(20px,3vw,44px);
}
.checks li{ display:flex; gap:12px; align-items:flex-start; color:var(--txt-2); font-size:.95rem; line-height:1.55; }
.checks .ic{ color:var(--violet-deep); margin-top:3px; }
.checks strong{ color:var(--txt); font-weight:600; }

/* ---------- attenuation bars ---------- */
.bars{ display:flex; flex-direction:column; gap:14px; max-width:820px; }
.bar{ display:grid; grid-template-columns:170px 1fr 66px; align-items:center; gap:16px; }
.bar__name{ font-size:.94rem; color:var(--on-dark-2); }
.bar__track{ height:9px; border-radius:6px; background:rgba(255,255,255,.09); overflow:hidden; }
.bar__track i{
  display:block; height:100%; border-radius:6px;
  background:linear-gradient(90deg, var(--violet), var(--lime));
  transform-origin:left; animation:grow 1.1s var(--ease) both;
}
@keyframes grow{ from{ transform:scaleX(0); } to{ transform:scaleX(1); } }
.bar b{ font-family:var(--disp); font-weight:600; text-align:right; color:#fff; }
.sec:not(.sec--dark) .bar__name{ color:var(--txt-2); }
.sec:not(.sec--dark) .bar__track{ background:var(--paper-3); }
.sec:not(.sec--dark) .bar b{ color:var(--txt); }

/* ---------- oem / feature pairs ---------- */
.duo{ display:grid; grid-template-columns:repeat(2,1fr); gap:clamp(14px,1.8vw,24px); }
.duo__item{
  background:#fff; border:1px solid var(--line); border-radius:var(--r); padding:30px 28px;
  transition:transform .3s var(--ease), box-shadow .3s, border-color .3s;
}
.duo__item:hover{ transform:translateY(-4px); border-color:transparent; box-shadow:0 24px 44px -28px rgba(15,17,25,.44); }
.duo__no{
  display:inline-flex; align-items:center; justify-content:center;
  width:38px; height:38px; border-radius:11px; background:var(--violet-pale);
  color:var(--violet-deep); font-family:var(--disp); font-weight:600; font-size:.86rem;
}
.duo__item h3{ margin-top:16px; font-size:1.2rem; }
.duo__item p{ margin-top:10px; color:var(--txt-2); font-size:.94rem; line-height:1.68; }

.cta{
  margin-top:clamp(24px,3vw,36px); padding:clamp(26px,3.4vw,40px);
  border-radius:var(--r); background:var(--ink); color:var(--on-dark);
  display:flex; align-items:center; justify-content:space-between; gap:26px; flex-wrap:wrap;
}
.cta h3{ font-size:1.35rem; }
.cta p{ margin-top:8px; color:var(--on-dark-2); font-size:.95rem; max-width:60ch; }

/* ---------- quality ---------- */
.tests{ display:grid; grid-template-columns:repeat(3,1fr); gap:clamp(14px,1.6vw,22px); }
.test{
  background:#fff; border:1px solid var(--line); border-radius:var(--r); padding:26px 24px;
  border-left:3px solid var(--violet);
  transition:transform .3s var(--ease), box-shadow .3s;
}
.test:hover{ transform:translateY(-4px); box-shadow:0 22px 40px -26px rgba(15,17,25,.42); }
.test h3{ font-size:1.06rem; }
.test p{ margin-top:9px; color:var(--txt-2); font-size:.9rem; line-height:1.62; }

.certs{ margin-top:clamp(22px,2.6vw,32px); display:flex; flex-wrap:wrap; gap:10px; }
.cert{
  display:inline-flex; align-items:center; gap:.55em;
  padding:.6em 1.1em; border-radius:100px; background:#fff;
  border:1px solid var(--line); font-size:.84rem; font-weight:500; color:var(--txt-2);
}
.cert .ic{ width:16px; height:16px; color:var(--violet-deep); }

/* ---------- faq ---------- */
.acc{ display:flex; flex-direction:column; gap:10px; }
.acc__item{ background:#fff; border:1px solid var(--line); border-radius:12px; overflow:hidden; }
.acc__item[open]{ border-color:var(--violet); box-shadow:0 18px 36px -28px rgba(15,17,25,.48); }
.acc__q{
  list-style:none; cursor:pointer; padding:19px 54px 19px 22px; position:relative;
  font-family:var(--disp); font-weight:500; font-size:1.02rem; transition:color .2s;
}
.acc__q::-webkit-details-marker{ display:none; }
.acc__q:hover{ color:var(--violet-deep); }
.acc__q::after{
  content:""; position:absolute; right:24px; top:50%; width:10px; height:10px;
  border-right:2px solid var(--violet); border-bottom:2px solid var(--violet);
  transform:translateY(-70%) rotate(45deg); transition:transform .3s var(--ease);
}
.acc__item[open] .acc__q::after{ transform:translateY(-25%) rotate(-135deg); }
.acc__a{ padding:0 22px 21px; color:var(--txt-2); font-size:.95rem; line-height:1.72; }
.acc__a a{ color:var(--violet-deep); text-decoration:underline; text-underline-offset:2px; }
.acc__a a:hover{ color:var(--lime-deep); }

/* ---------- contact ---------- */
.cwrap{ display:grid; grid-template-columns:.85fr 1.15fr; gap:clamp(26px,3.4vw,52px); align-items:start; }
.cinfo{ display:flex; flex-direction:column; gap:8px; }
.cinfo__item{
  display:flex; gap:15px; align-items:flex-start; padding:16px 18px;
  border:1px solid var(--line-dark); border-radius:12px;
  transition:background .25s, border-color .25s, transform .25s var(--ease);
}
a.cinfo__item:hover{ background:rgba(168,146,255,.1); border-color:rgba(168,146,255,.38); transform:translateX(3px); }
.cinfo__item--plain{ cursor:default; }
.cinfo__item .ic{ color:var(--violet-lt); margin-top:2px; }
.cinfo__item span{ display:flex; flex-direction:column; gap:3px; font-size:.93rem; color:var(--on-dark); }
.cinfo__item b{ font-size:.72rem; font-weight:600; letter-spacing:.13em; text-transform:uppercase; color:var(--on-dark-2); }

.form{
  background:rgba(255,255,255,.04); border:1px solid var(--line-dark);
  border-radius:var(--r); padding:clamp(22px,2.8vw,34px);
  display:flex; flex-direction:column; gap:15px;
}
.form__row{ display:grid; grid-template-columns:1fr 1fr; gap:15px; }
.field{ display:flex; flex-direction:column; gap:7px; }
.field__lbl{ font-size:.78rem; font-weight:500; letter-spacing:.09em; text-transform:uppercase; color:var(--on-dark-2); }
.field input, .field select, .field textarea{
  width:100%; padding:12px 14px; border-radius:10px;
  border:1px solid var(--line-dark); background:rgba(10,11,18,.6); color:var(--on-dark);
  font-size:.94rem; transition:border-color .22s, background .22s, box-shadow .22s;
}
.field textarea{ resize:vertical; min-height:118px; }
.field input::placeholder, .field textarea::placeholder{ color:#7a7f99; }
.field select{ appearance:none; cursor:pointer; }
.field select option{ background:var(--ink-2); color:var(--on-dark); }
.field input:focus, .field select:focus, .field textarea:focus{
  outline:none; border-color:var(--violet); background:rgba(10,11,18,.85);
  box-shadow:0 0 0 3px rgba(109,74,255,.25);
}
.field.is-bad input, .field.is-bad textarea{ border-color:#ff7a8c; }
.form__btn{ align-self:flex-start; margin-top:5px; }
.form__msg{ font-size:.9rem; color:var(--lime); }
.form__msg.is-bad{ color:#ff9caa; }

/* ---------- footer ---------- */
.ftr{ background:var(--ink-2); color:var(--on-dark-2); padding-top:clamp(46px,5vw,68px); }
.ftr__top{ display:grid; grid-template-columns:1.5fr 1fr 1fr 1fr; gap:clamp(26px,3vw,44px); }
.ftr .brand__desc{ color:var(--violet-lt); }
.ftr .brand__name{ color:var(--on-dark); }
.ftr .brand__mark{ color:var(--violet-lt); }
.ftr__blurb{ margin-top:16px; font-size:.9rem; line-height:1.68; max-width:42ch; }
.ftr__social{ margin-top:18px; display:flex; gap:9px; }
.ftr__social a{
  display:inline-flex; align-items:center; justify-content:center;
  width:38px; height:38px; border-radius:11px; border:1px solid var(--line-dark);
  transition:background .25s, border-color .25s, color .25s, transform .25s var(--ease);
}
.ftr__social a:hover{ background:rgba(168,146,255,.14); border-color:var(--violet-lt); color:var(--violet-lt); transform:translateY(-2px); }
.ftr__col{ display:flex; flex-direction:column; gap:11px; font-size:.9rem; }
.ftr__col h4{ font-size:.76rem; letter-spacing:.15em; text-transform:uppercase; color:var(--on-dark); margin-bottom:5px; }
.ftr__col a{ transition:color .2s; }
.ftr__col a:hover{ color:var(--violet-lt); }
.ftr__bottom{
  margin-top:clamp(34px,4vw,52px); padding-block:22px; border-top:1px solid var(--line-dark);
  display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap; font-size:.82rem;
}
.ftr__legal{ display:flex; gap:clamp(12px,1.7vw,22px); flex-wrap:wrap; }
.ftr__legal a{ transition:color .2s; }
.ftr__legal a:hover{ color:var(--violet-lt); }

/* ---------- back to top ---------- */
.totop{
  position:fixed; right:22px; bottom:22px; z-index:70;
  width:46px; height:46px; border-radius:14px;
  display:inline-flex; align-items:center; justify-content:center;
  background:var(--ink); color:#fff; box-shadow:0 14px 30px -14px rgba(15,17,25,.75);
  opacity:0; visibility:hidden; transform:translateY(12px);
  transition:opacity .3s, transform .3s var(--ease), visibility .3s, background .25s;
}
.totop.is-on{ opacity:1; visibility:visible; transform:none; }
.totop:hover{ background:var(--violet-deep); }

/* ---------- reveal ---------- */
.reveal{ opacity:0; transform:translateY(22px); transition:opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-in{ opacity:1; transform:none; }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width:1080px){
  .hero__in{ grid-template-columns:1fr; }
  .hero__art{ order:-1; }
  .split{ grid-template-columns:1fr; }
  .drvs{ grid-template-columns:repeat(2,1fr); }
  .steps{ grid-template-columns:repeat(2,1fr); }
  .cwrap{ grid-template-columns:1fr; }
}

@media (max-width:1024px){
  .burger{ display:inline-flex; }
  .nav{
    position:fixed; inset:0 0 0 auto; width:min(340px,86vw); z-index:80;
    background:var(--ink); color:var(--on-dark);
    flex-direction:column; align-items:stretch; justify-content:flex-start;
    gap:6px; padding:78px 26px 30px;
    transform:translateX(105%); transition:transform .34s var(--ease);
    box-shadow:-24px 0 60px -30px rgba(0,0,0,.8);
  }
  .nav.is-open{ transform:none; }
  .nav > a{ color:var(--on-dark-2); font-size:1.02rem; padding:12px 0; border-bottom:1px solid var(--line-dark); }
  .nav > a::after{ display:none; }
  .nav > a:hover, .nav > a.is-active{ color:var(--violet-lt); }
  .nav__cta{ margin-top:18px; justify-content:center; border-bottom:none !important; }
  .nav__close{
    display:inline-flex; position:absolute; top:20px; right:20px;
    background:transparent; border:1px solid var(--line-dark); color:var(--on-dark);
    border-radius:11px; padding:8px 10px; cursor:pointer;
  }
}

@media (max-width:860px){
  .topbar__right{ display:none; }
  .cats, .grid, .tests{ grid-template-columns:repeat(2,1fr); }
  .duo, .checks{ grid-template-columns:1fr; }
  .hero__stats{ grid-template-columns:repeat(2,1fr); gap:22px; }
  .ftr__top{ grid-template-columns:1fr 1fr; }
  .bar{ grid-template-columns:120px 1fr 56px; gap:12px; }
}

@media (max-width:620px){
  .topbar__note span{ font-size:.72rem; }
  .cats, .grid, .tests, .drvs, .steps, .panels{ grid-template-columns:1fr; }
  .form__row{ grid-template-columns:1fr; }
  .ftr__top{ grid-template-columns:1fr; }
  .cta{ flex-direction:column; align-items:flex-start; }
  .totop{ right:14px; bottom:14px; }
  .bench__row{ gap:8px; }
}

/* ---------- motion preferences ---------- */
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{
    animation-duration:.001ms !important; animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .reveal{ opacity:1; transform:none; }
  .marquee__track{ animation:none; }
}

/* ---------- print ---------- */
@media print{
  .topbar,.hdr,.marquee,.totop,.form,.hero__art{ display:none !important; }
  body{ background:#fff; color:#000; }
  .sec--dark,.hero,.ftr{ background:#fff !important; color:#000 !important; }
  .reveal{ opacity:1; transform:none; }
}