/* ============================================================
   ATRACK · OEM / international (EN)
   Aesthetic: industrial signal — graphite + electric teal,
   blueprint grid, monospace datasheet, registration ticks.
   ============================================================ */

:root {
  --bg:        #0a0d10;
  --bg-2:      #0e1318;
  --panel:     #11171d;
  --panel-2:   #141c23;
  --line:      #1e272f;
  --line-2:    #2a363f;
  --ink:       #e9eff3;
  --ink-2:     #9aa8b3;
  --ink-3:     #5e6b76;
  --signal:    #2ff5c8;   /* electric mint/teal */
  --signal-2:  #19c79f;
  --signal-ink:#04140f;
  --hazard:    #ff6b35;   /* used sparingly */

  --font-display: "Saira", system-ui, sans-serif;
  --font-body:    "Archivo", system-ui, sans-serif;
  --font-mono:    "IBM Plex Mono", ui-monospace, monospace;

  --maxw: 1240px;
  --pad: clamp(18px, 4vw, 56px);
  --radius: 4px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
  letter-spacing: .005em;
  overflow-x: hidden;
  position: relative;
}

/* Blueprint grid + radial depth */
body::before {
  content: "";
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(47,245,200,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(47,245,200,.035) 1px, transparent 1px),
    radial-gradient(120% 80% at 80% -10%, rgba(47,245,200,.08), transparent 55%),
    radial-gradient(100% 70% at 0% 110%, rgba(25,120,160,.10), transparent 60%);
  background-size: 46px 46px, 46px 46px, 100% 100%, 100% 100%;
  mask-image: radial-gradient(140% 120% at 50% 0%, #000 60%, transparent 100%);
}
/* Fine grain */
body::after {
  content: "";
  position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: .04;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.wrap { position: relative; z-index: 1; }
.container { max-width: var(--maxw); margin: 0 auto; padding-inline: var(--pad); }

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ---------- Typographic helpers ---------- */
.kicker {
  font-family: var(--font-mono);
  font-size: .72rem; letter-spacing: .22em; text-transform: uppercase;
  color: var(--signal);
}
.mono { font-family: var(--font-mono); }
.muted { color: var(--ink-2); }

h1, h2, h3 { font-family: var(--font-display); font-weight: 700; line-height: 1.02; letter-spacing: -.01em; }

.section-label {
  display: flex; align-items: center; gap: 14px;
  font-family: var(--font-mono); font-size: .74rem; letter-spacing: .2em;
  text-transform: uppercase; color: var(--ink-2);
  margin-bottom: 28px;
}
.section-label::before { content: ""; width: 9px; height: 9px; background: var(--signal); box-shadow: 0 0 12px var(--signal); }
.section-label::after { content: ""; flex: 1; height: 1px; background: linear-gradient(90deg, var(--line-2), transparent); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: .82rem; letter-spacing: .06em;
  text-transform: uppercase; font-weight: 500;
  padding: 13px 22px; border-radius: var(--radius);
  border: 1px solid var(--line-2); color: var(--ink);
  background: transparent; cursor: pointer; transition: .18s ease;
}
.btn:hover { border-color: var(--signal); color: var(--signal); }
.btn-signal {
  background: var(--signal); color: var(--signal-ink); border-color: var(--signal);
  font-weight: 600;
}
.btn-signal:hover { background: #5dffd6; color: var(--signal-ink); box-shadow: 0 0 0 1px var(--signal), 0 8px 30px -8px var(--signal); }
.btn .arrow { transition: transform .18s ease; }
.btn:hover .arrow { transform: translateX(3px); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(10px);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; gap: 28px; height: 66px; }
.brand { display: flex; align-items: baseline; gap: 10px; margin-right: auto; }
.brand .word { font-family: var(--font-display); font-weight: 800; font-size: 1.32rem; letter-spacing: .14em; }
.brand .word b { color: var(--signal); font-weight: 800; }
.brand .tag { font-family: var(--font-mono); font-size: .6rem; letter-spacing: .18em; color: var(--ink-3); text-transform: uppercase; }
.nav-links { display: flex; gap: 26px; }
.nav-links a { font-family: var(--font-mono); font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-2); transition: color .15s; }
.nav-links a:hover { color: var(--ink); }
.region {
  display: flex; gap: 2px; font-family: var(--font-mono); font-size: .68rem;
  border: 1px solid var(--line-2); border-radius: var(--radius); overflow: hidden;
}
.region a { padding: 6px 9px; color: var(--ink-3); letter-spacing: .05em; }
.region a.is-active { background: var(--panel-2); color: var(--ink); }
.region a:hover { color: var(--signal); }
.nav-cta { display: none; }
.burger { display: none; }

/* ---------- Hero ---------- */
.hero { padding: clamp(54px, 9vw, 120px) 0 clamp(40px,6vw,72px); }
.hero-grid { display: grid; grid-template-columns: 1.25fr .85fr; gap: clamp(28px, 5vw, 64px); align-items: center; }
.hero h1 { font-size: clamp(2.6rem, 6.4vw, 5.1rem); font-weight: 800; margin: 18px 0 22px; }
.hero h1 .em { color: var(--signal); }
.hero .lede { font-size: clamp(1.02rem, 1.5vw, 1.22rem); color: var(--ink-2); max-width: 46ch; }
.hero-cta { display: flex; gap: 14px; margin-top: 34px; flex-wrap: wrap; }
.hero-meta { display: flex; gap: 26px; margin-top: 40px; flex-wrap: wrap; }
.hero-meta .stat .n { font-family: var(--font-display); font-weight: 700; font-size: 1.7rem; color: var(--ink); }
.hero-meta .stat .l { font-family: var(--font-mono); font-size: .66rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); }

/* Signal panel */
.panel {
  position: relative; background: linear-gradient(160deg, var(--panel), var(--bg-2));
  border: 1px solid var(--line-2); border-radius: 8px; padding: 22px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.03), 0 30px 60px -30px #000;
}
.panel .ticks { position: absolute; inset: 8px; pointer-events: none; }
.panel .ticks span { position: absolute; width: 8px; height: 8px; border: 1px solid var(--signal); opacity: .5; }
.panel .ticks span:nth-child(1){ top:0; left:0; border-right:0; border-bottom:0; }
.panel .ticks span:nth-child(2){ top:0; right:0; border-left:0; border-bottom:0; }
.panel .ticks span:nth-child(3){ bottom:0; left:0; border-right:0; border-top:0; }
.panel .ticks span:nth-child(4){ bottom:0; right:0; border-left:0; border-top:0; }
.panel .phead { display: flex; align-items: center; justify-content: space-between; font-family: var(--font-mono); font-size: .68rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 16px; }
.live-dot { display: inline-flex; align-items: center; gap: 7px; color: var(--signal); }
.live-dot::before { content:""; width:7px; height:7px; border-radius:50%; background: var(--signal); box-shadow: 0 0 10px var(--signal); animation: pulse 1.8s infinite; }
@keyframes pulse { 0%,100%{opacity:1; transform:scale(1)} 50%{opacity:.35; transform:scale(.7)} }
.coord { font-family: var(--font-mono); font-size: 1.42rem; color: var(--ink); letter-spacing: .02em; }
.coord small { color: var(--ink-3); font-size: .8rem; }
.spec-row { display: flex; justify-content: space-between; font-family: var(--font-mono); font-size: .78rem; padding: 9px 0; border-bottom: 1px dashed var(--line); }
.spec-row:last-child { border-bottom: 0; }
.spec-row .k { color: var(--ink-3); letter-spacing: .04em; }
.spec-row .v { color: var(--signal); }

/* ---------- Capability strip ---------- */
.strip { border-block: 1px solid var(--line); background: var(--bg-2); overflow: hidden; }
.strip .row { display: flex; gap: 40px; padding: 14px 0; font-family: var(--font-mono); font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); white-space: nowrap; animation: marquee 32s linear infinite; }
.strip .row span { display: inline-flex; align-items: center; gap: 40px; }
.strip .row b { color: var(--signal); font-weight: 400; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- Sections ---------- */
section { padding: clamp(56px, 8vw, 104px) 0; }
.lead-2 { font-size: clamp(1.5rem, 3vw, 2.3rem); max-width: 22ch; margin-bottom: 10px; }
.sub { color: var(--ink-2); max-width: 58ch; }

/* Product grid */
.products { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 40px; }
.card {
  position: relative; background: var(--panel); border: 1px solid var(--line);
  border-radius: 6px; padding: 22px; transition: .2s ease; overflow: hidden;
}
.card::before { content:""; position:absolute; top:0; left:0; width:0; height:2px; background: var(--signal); transition: width .25s ease; }
.card:hover { border-color: var(--line-2); transform: translateY(-3px); }
.card:hover::before { width: 100%; }
.card .code { font-family: var(--font-mono); font-size: .68rem; letter-spacing: .14em; color: var(--ink-3); }
.card .cat { float: right; font-family: var(--font-mono); font-size: .6rem; letter-spacing: .1em; text-transform: uppercase; color: var(--signal); border: 1px solid color-mix(in srgb, var(--signal) 40%, transparent); padding: 2px 7px; border-radius: 20px; }
.card h3 { font-size: 1.7rem; margin: 14px 0 6px; }
.card .desc { color: var(--ink-2); font-size: .92rem; min-height: 42px; }
.card .specs { margin: 16px 0 18px; }
.card .specs .spec-row { font-size: .73rem; padding: 7px 0; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.chip { font-family: var(--font-mono); font-size: .62rem; letter-spacing: .06em; color: var(--ink-2); border: 1px solid var(--line-2); padding: 3px 8px; border-radius: 3px; }
.card .add { width: 100%; justify-content: center; }

.note { font-family: var(--font-mono); font-size: .68rem; color: var(--ink-3); margin-top: 20px; }

/* Use cases */
.uses { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; margin-top: 40px; }
.use { border: 1px solid var(--line); border-radius: 6px; padding: 26px; background: linear-gradient(180deg, var(--panel), transparent); }
.use .num { font-family: var(--font-mono); color: var(--signal); font-size: .8rem; }
.use h3 { font-size: 1.4rem; margin: 12px 0 8px; }
.use p { color: var(--ink-2); font-size: .92rem; }

/* White-label panel */
.wl { background: linear-gradient(135deg, var(--panel-2), var(--bg-2)); border: 1px solid var(--line-2); border-radius: 10px; padding: clamp(28px,5vw,56px); position: relative; overflow: hidden; }
.wl::after { content:""; position:absolute; right:-60px; top:-60px; width:280px; height:280px; background: radial-gradient(circle, rgba(47,245,200,.16), transparent 70%); }
.wl-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: center; position: relative; z-index: 1; }
.wl h2 { font-size: clamp(1.8rem, 3.4vw, 2.8rem); }
.wl-feats { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 24px; }
.wl-feats .f { display: flex; gap: 11px; align-items: flex-start; }
.wl-feats .f i { color: var(--signal); font-style: normal; font-family: var(--font-mono); }
.wl-feats .f b { display: block; font-weight: 600; font-family: var(--font-display); font-size: 1.02rem; }
.wl-feats .f span { color: var(--ink-2); font-size: .85rem; }

/* Certs */
.certs { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.cert { font-family: var(--font-mono); font-size: .8rem; letter-spacing: .08em; border: 1px solid var(--line-2); border-radius: 4px; padding: 12px 18px; color: var(--ink); }
.cert span { color: var(--ink-3); }

/* ---------- Form ---------- */
.quote-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(28px,5vw,56px); margin-top: 40px; align-items: start; }
.quote-aside h2 { font-size: clamp(1.8rem,3.4vw,2.7rem); }
.quote-aside .line { display: flex; gap: 12px; align-items: center; margin-top: 18px; font-family: var(--font-mono); font-size: .85rem; color: var(--ink-2); }
.quote-aside .line b { color: var(--signal); }
form.quote { background: var(--panel); border: 1px solid var(--line-2); border-radius: 8px; padding: clamp(20px,3vw,30px); }
.field { margin-bottom: 16px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
label { display: block; font-family: var(--font-mono); font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 7px; }
label .req { color: var(--signal); }
input, select, textarea {
  width: 100%; background: var(--bg); border: 1px solid var(--line-2); color: var(--ink);
  font-family: var(--font-body); font-size: .95rem; padding: 11px 13px; border-radius: 4px;
  transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--signal); box-shadow: 0 0 0 3px color-mix(in srgb, var(--signal) 18%, transparent); }
select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--ink-3) 50%), linear-gradient(135deg, var(--ink-3) 50%, transparent 50%); background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%; background-size: 5px 5px, 5px 5px; background-repeat: no-repeat; }
textarea { resize: vertical; min-height: 96px; }
.form-actions { display: flex; align-items: center; gap: 18px; margin-top: 6px; }
.form-status { font-family: var(--font-mono); font-size: .76rem; }
.form-status[data-kind="ok"] { color: var(--signal); }
.form-status[data-kind="err"] { color: var(--hazard); }
.form-status[data-kind="sending"] { color: var(--ink-2); }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); background: var(--bg-2); padding: 56px 0 30px; }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; }
.foot-grid h4 { font-family: var(--font-mono); font-size: .68rem; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 14px; }
.foot-grid a { display: block; color: var(--ink-2); font-size: .9rem; padding: 4px 0; }
.foot-grid a:hover { color: var(--signal); }
.disclosure { font-family: var(--font-mono); font-size: .72rem; color: var(--ink-3); max-width: 52ch; margin-top: 14px; line-height: 1.7; }
.foot-bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 40px; padding-top: 22px; border-top: 1px solid var(--line); font-family: var(--font-mono); font-size: .72rem; color: var(--ink-3); }

/* ---------- Reveal animation ----------
   Base state stays VISIBLE. The hidden start lives only inside the keyframe,
   so if animations are disabled (reduced-motion, no support) content never vanishes. */
[data-reveal] { animation: reveal .7s cubic-bezier(.2,.7,.2,1) both; }
@keyframes reveal { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero .panel { order: -1; }
  .products, .uses { grid-template-columns: 1fr 1fr; }
  .wl-grid, .quote-grid { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .nav-links, .region { display: none; }
  .burger { display: inline-flex; }
  .products, .uses, .wl-feats, .field-row { grid-template-columns: 1fr; }
  .hero-meta { gap: 18px; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; scroll-behavior: auto; }
  /* Safety: never leave reveal content stuck at opacity:0 when animations are off */
  [data-reveal] { opacity: 1 !important; transform: none !important; }
}