:root{
  --bg:#0E0E11;--bg2:#15151A;--card:#1B1B21;--card2:#22222A;--line:#2C2C35;
  --text:#F4F4F6;--muted:#A8A8B3;--dim:#7A7A86;
  --accent:#FF8A3D;--accent2:#E5531A;--ok:#3DD68C;--warn:#FFC24B;--bad:#FF5A4E;
  --radius:18px;--max:1160px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 "Segoe UI",Roboto,system-ui,-apple-system,Arial,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}
h1,h2,h3{line-height:1.15;letter-spacing:-.02em;margin:0 0 .5em}
h1{font-size:clamp(34px,5.4vw,60px);font-weight:800}
h2{font-size:clamp(26px,3.4vw,38px);font-weight:800}
h3{font-size:20px;font-weight:700}
p{margin:0 0 1em}
em.hl{font-style:normal;color:var(--accent)}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.muted{color:var(--muted)}
.section{padding:84px 0}
.section.alt{background:var(--bg2)}
.eyebrow{color:var(--accent);font-weight:700;font-size:13px;letter-spacing:.14em;text-transform:uppercase;margin-bottom:12px}
.center{text-align:center}
.lead{font-size:19px;color:var(--muted);max-width:720px}
.center .lead{margin-left:auto;margin-right:auto}

/* header */
.top{position:sticky;top:0;z-index:50;background:rgba(14,14,17,.86);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:28px;height:68px}
.logo{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:800;font-size:18px}
.logo:hover{text-decoration:none}
.logo img{width:36px;height:36px;border-radius:9px}
.nav{display:flex;gap:24px;margin-left:auto;align-items:center}
.nav a{color:var(--muted);font-weight:600;font-size:15px}
.nav a:hover,.nav a.on{color:var(--text);text-decoration:none}
.menu{display:none;margin-left:auto;background:none;border:1px solid var(--line);color:var(--text);border-radius:10px;width:42px;height:40px;font-size:20px;cursor:pointer}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:10px;border-radius:999px;font-weight:700;padding:13px 24px;font-size:16px;border:0;cursor:pointer}
.btn:hover{text-decoration:none;filter:brightness(1.07)}
.btn-primary{background:linear-gradient(90deg,#FF9A4D,var(--accent2));color:#1A0B03!important;box-shadow:0 10px 30px rgba(229,83,26,.35)}
.btn-ghost{background:transparent;color:var(--text)!important;border:1px solid var(--line)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn svg{width:20px;height:20px;flex:none}
.play{display:inline-flex;align-items:center;gap:12px;background:#000;border:1px solid #4A4A55;border-radius:14px;padding:9px 20px 9px 16px;color:#fff!important}
.play:hover{text-decoration:none;border-color:var(--accent)}
.play svg{width:28px;height:28px}
.play small{display:block;font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:#C9C9D1;line-height:1.2}
.play b{display:block;font-size:20px;line-height:1.15}

/* hero */
.hero{position:relative;overflow:hidden;padding:70px 0 40px}
.hero:before{content:"";position:absolute;right:-200px;top:-150px;width:900px;height:900px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,47,.25),rgba(255,122,47,0) 62%);pointer-events:none}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.badge-line{display:inline-flex;align-items:center;gap:8px;background:rgba(255,90,78,.12);color:#FF8A80;border:1px solid rgba(255,90,78,.35);
  border-radius:999px;padding:6px 14px;font-weight:700;font-size:14px;margin-bottom:22px}
.badge-line i{width:8px;height:8px;border-radius:50%;background:var(--bad);box-shadow:0 0 0 4px rgba(255,90,78,.2)}
.hero p.lead{margin-bottom:28px}
.cta-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.search{display:flex;gap:8px;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:8px;max-width:520px;margin-top:30px}
.search input{flex:1;min-width:0;background:transparent;border:0;color:var(--text);font-size:17px;padding:8px 12px;outline:none}
.search input::placeholder{color:var(--dim)}
.search button{background:var(--card2);color:var(--text);border:1px solid var(--line);border-radius:11px;padding:0 18px;font-weight:700;cursor:pointer}
.search button:hover{border-color:var(--accent)}
.hint{color:var(--dim);font-size:14px;margin-top:10px}
.hint a{color:var(--muted);border-bottom:1px dashed var(--line)}
.hint a:hover{text-decoration:none;color:var(--accent)}
.phone{position:relative;width:min(330px,80vw);margin:0 auto;border:12px solid #050506;border-radius:46px;overflow:hidden;background:#000;
  box-shadow:0 0 0 2px #34343B,0 40px 80px rgba(0,0,0,.6),0 0 120px rgba(255,122,47,.22);aspect-ratio:1080/2160}
.phone img{width:100%;margin-top:-6%}
.float{position:absolute;background:#fff;color:#16161A;font-weight:800;border-radius:14px;padding:10px 14px;box-shadow:0 18px 40px rgba(0,0,0,.5);font-size:15px;display:flex;gap:8px;align-items:center}
.float .d{width:10px;height:10px;border-radius:50%;background:var(--bad)}
.float.f1{left:-10px;top:58%}
.float.f2{right:-26px;top:3%;background:var(--card2);color:var(--text);border:1px solid var(--line)}
.float.f2 .d{background:var(--ok)}
.phone-wrap{position:relative;max-width:400px;margin:0 auto}

/* grids & cards */
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
a.card{color:var(--text);display:block;transition:border-color .15s,transform .15s}
a.card:hover{text-decoration:none;border-color:rgba(255,138,61,.6);transform:translateY(-2px)}
.ic{width:48px;height:48px;border-radius:14px;background:rgba(255,138,61,.12);display:grid;place-items:center;margin-bottom:16px}
.ic svg{width:26px;height:26px;stroke:var(--accent)}
.card p{color:var(--muted);margin:0}
.step-n{width:38px;height:38px;border-radius:50%;background:var(--accent);color:#1A0B03;font-weight:800;display:grid;place-items:center;margin-bottom:14px}

/* screenshots */
.shots{display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;padding:10px 4px 20px;scrollbar-width:thin}
.shots img{width:250px;flex:none;border-radius:20px;scroll-snap-align:start;border:1px solid var(--line)}

.video{border-radius:22px;overflow:hidden;border:1px solid var(--line);box-shadow:0 30px 80px rgba(0,0,0,.5);max-width:960px;margin:34px auto 0;background:#000}
.video video{width:100%;display:block}

/* faq */
details{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:4px 22px;margin-bottom:12px}
summary{cursor:pointer;font-weight:700;padding:16px 0;list-style:none;display:flex;justify-content:space-between;gap:16px}
summary::-webkit-details-marker{display:none}
summary:after{content:"+";color:var(--accent);font-size:22px;line-height:1}
details[open] summary:after{content:"–"}
details p{color:var(--muted)}

/* app promo band */
.promo{display:grid;grid-template-columns:auto 1fr auto;gap:22px;align-items:center;background:linear-gradient(120deg,#2A1A10,#1B1B21 60%);
  border:1px solid rgba(255,138,61,.35);border-radius:22px;padding:24px 28px;margin:34px 0}
.promo img{width:64px;height:64px;border-radius:16px}
.promo h3{margin:0 0 4px}
.promo p{margin:0;color:var(--muted)}

/* content pages */
.page-head{padding:56px 0 24px;border-bottom:1px solid var(--line);background:radial-gradient(circle at 85% 0,rgba(255,122,47,.14),transparent 50%)}
.crumbs{font-size:14px;color:var(--dim);margin-bottom:14px}
.crumbs a{color:var(--muted)}
.content{display:grid;grid-template-columns:1fr 320px;gap:40px;padding:40px 0 80px}
.prose{max-width:760px}
.prose h2{font-size:26px;margin-top:36px}
.prose h3{margin-top:26px}
.prose ul{padding-left:22px;color:var(--muted)}
.prose li{margin-bottom:6px}
.prose p{color:#D2D2DA}
.side{position:sticky;top:90px;align-self:start}
.side .card{padding:22px}
.side img.app{width:72px;height:72px;border-radius:18px;margin-bottom:14px}
.code-big{display:inline-block;font-family:Consolas,"SF Mono",monospace;background:rgba(255,138,61,.14);color:var(--accent);border:1px solid rgba(255,138,61,.4);
  border-radius:12px;padding:4px 14px;font-weight:800;font-size:clamp(28px,4vw,40px);margin-bottom:14px}
.pill{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:4px 12px;font-size:13px;font-weight:700;margin:0 6px 8px 0}
.pill.ok{background:rgba(61,214,140,.12);color:var(--ok)}.pill.warn{background:rgba(255,194,75,.12);color:var(--warn)}.pill.bad{background:rgba(255,90,78,.12);color:var(--bad)}
.pill.n{background:var(--card2);color:var(--muted)}
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:22px 0}
.facts div{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px 16px}
.facts small{display:block;color:var(--dim);font-size:12px;text-transform:uppercase;letter-spacing:.08em}
.facts b{font-size:16px}

/* code lists */
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin:24px 0}
.tabs a{background:var(--card);border:1px solid var(--line);color:var(--muted);border-radius:999px;padding:8px 16px;font-weight:700;font-size:14px}
.tabs a.on,.tabs a:hover{color:#1A0B03;background:var(--accent);border-color:var(--accent);text-decoration:none}
.codes{display:grid;grid-template-columns:repeat(2,1fr);gap:8px 20px;margin:0;padding:0;list-style:none}
.codes li a{display:flex;gap:12px;padding:10px 12px;border-radius:10px;color:#D2D2DA}
.codes li a:hover{background:var(--card);text-decoration:none}
.codes li b{font-family:Consolas,monospace;color:var(--accent);min-width:58px}
.results{margin-top:18px}
.results:empty{display:none}
.group-h{margin-top:40px;padding-top:24px;border-top:1px solid var(--line)}

/* lights */
.lights{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.light{display:flex;gap:18px;align-items:flex-start;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px}
.light .sym{flex:none;width:64px;height:64px;border-radius:14px;background:#F4F4F6;display:grid;place-items:center;padding:8px}
.light h3{font-size:17px;margin:2px 0 6px}
.light p{color:var(--muted);margin:0;font-size:15px}
.light .pill{margin-top:8px}

/* brands */
.brands{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.brand{display:flex;flex-direction:column;align-items:center;gap:10px;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px 10px;color:var(--text);font-weight:600;font-size:14px;text-align:center}
.brand:hover{text-decoration:none;border-color:rgba(255,138,61,.6)}
.brand span.lg{width:64px;height:64px;border-radius:14px;background:#F4F4F6;display:grid;place-items:center;padding:8px}
.models{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.models li{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 18px}
.models b{display:block;margin-bottom:4px}
.models span{color:var(--muted)}

/* footer */
.foot{border-top:1px solid var(--line);padding:56px 0 110px;background:var(--bg2);color:var(--muted);font-size:15px}
.foot .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px}
.foot h4{color:var(--text);margin:0 0 12px;font-size:15px}
.foot a{color:var(--muted);display:block;margin-bottom:8px}
.foot a:hover{color:var(--accent)}
.foot .fine{margin-top:36px;padding-top:20px;border-top:1px solid var(--line);font-size:13px;color:var(--dim)}

/* mobile sticky bar */
.sticky-dl{position:fixed;left:12px;right:12px;bottom:12px;z-index:60;display:none;align-items:center;gap:12px;background:#1F1F26;border:1px solid var(--line);
  border-radius:18px;padding:10px 12px;box-shadow:0 20px 50px rgba(0,0,0,.6)}
.sticky-dl img{width:42px;height:42px;border-radius:11px}
.sticky-dl div{flex:1;line-height:1.25;font-size:14px}
.sticky-dl div b{display:block;font-size:15px}
.sticky-dl div span{color:var(--muted)}
.sticky-dl .x{background:none;border:0;color:var(--dim);font-size:20px;cursor:pointer;padding:4px}

@media (max-width:960px){
  .hero .wrap,.content{grid-template-columns:1fr}
  .side{position:static}
  .g3,.g4{grid-template-columns:repeat(2,1fr)}
  .brands{grid-template-columns:repeat(4,1fr)}
  .foot .cols{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .nav{display:none;position:absolute;top:68px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:var(--bg2);border-bottom:1px solid var(--line);padding:8px 20px 16px}
  .nav.open{display:flex}
  .nav a{padding:12px 0;border-bottom:1px solid var(--line)}
  .nav .btn{margin-top:12px;justify-content:center}
  .menu{display:block}
  .section{padding:60px 0}
  .g2,.g3,.g4,.codes,.lights,.facts{grid-template-columns:1fr}
  .brands{grid-template-columns:repeat(3,1fr)}
  .promo{grid-template-columns:auto 1fr}
  .promo .btn{grid-column:1/-1;justify-content:center}
  .sticky-dl{display:flex}
  .float.f1{left:0}
  .float.f2{right:0}
  .hero{padding-top:40px}
}