:root{
  --bg:#0c1014;--bg2:#121820;--card:#161e27;--line:#243040;
  --ink:#e8eef4;--mute:#93a3b5;--acc:#f2b53a;--acc2:#2fbf8f;--rec:#ff4d4d;
  --r:14px;--max:1160px;
  font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:inherit}
.wrap{max-width:var(--max);margin:0 auto;padding:0 22px}
.mono{font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace}

/* header */
header.top{position:sticky;top:0;z-index:20;background:rgba(12,16,20,.86);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
header.top .wrap{display:flex;align-items:center;gap:28px;height:66px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:700;letter-spacing:.2px;font-size:18px}
.logo svg{width:30px;height:30px}
.logo small{display:block;font-weight:500;font-size:11px;color:var(--mute);letter-spacing:.6px;text-transform:uppercase;margin-top:-3px}
nav.main{display:flex;gap:22px;margin-left:auto}
nav.main a{text-decoration:none;color:var(--mute);font-size:15px}
nav.main a:hover{color:var(--ink)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:10px;padding:12px 20px;font:inherit;font-weight:600;cursor:pointer;text-decoration:none;transition:transform .12s,background .12s}
.btn:active{transform:translateY(1px)}
.btn-acc{background:var(--acc);color:#1a1300}
.btn-acc:hover{background:#ffc552}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{border-color:#3a4a5e}
.btn-sm{padding:9px 14px;font-size:14px}
.burger{display:none;margin-left:auto;background:none;border:1px solid var(--line);color:var(--ink);border-radius:8px;padding:7px 10px;font-size:18px}

/* hero */
.hero{padding:70px 0 60px;background:radial-gradient(900px 420px at 80% 0%,rgba(242,181,58,.09),transparent 60%),radial-gradient(700px 400px at 0% 100%,rgba(47,191,143,.07),transparent 60%)}
.hero .wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:50px;align-items:center}
.tag{display:inline-flex;gap:8px;align-items:center;font-size:13px;color:var(--acc2);background:rgba(47,191,143,.1);border:1px solid rgba(47,191,143,.25);padding:5px 11px;border-radius:99px}
.tag i{width:7px;height:7px;border-radius:50%;background:var(--acc2);display:inline-block}
h1{font-size:46px;line-height:1.12;margin:18px 0 16px;letter-spacing:-.6px}
h1 em{font-style:normal;color:var(--acc)}
.lead{color:var(--mute);font-size:18px;max-width:540px}
.hero-cta{display:flex;gap:12px;margin:28px 0 30px;flex-wrap:wrap}
.facts{display:flex;gap:30px;flex-wrap:wrap}
.facts b{display:block;font-size:24px}
.facts span{color:var(--mute);font-size:14px}

/* camera wall */
.wall{background:#05080b;border:1px solid var(--line);border-radius:18px;padding:10px;box-shadow:0 30px 80px rgba(0,0,0,.45)}
.wall-head{display:flex;justify-content:space-between;align-items:center;padding:4px 6px 10px;color:var(--mute);font-size:13px}
.wall-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.cam{position:relative;aspect-ratio:16/10;border-radius:10px;overflow:hidden;background:#1a222b}
.cam canvas{width:100%;height:100%;display:block}
.cam .lbl{position:absolute;left:8px;bottom:7px;font-size:12px;background:rgba(0,0,0,.55);padding:2px 7px;border-radius:5px}
.cam .ts{position:absolute;right:8px;top:7px;font-size:11px;color:#d6dde4;text-shadow:0 1px 2px #000}
.cam .rec{position:absolute;left:8px;top:7px;font-size:11px;font-weight:700;display:flex;gap:5px;align-items:center}
.cam .rec i{width:8px;height:8px;border-radius:50%;background:var(--rec);animation:blink 1.4s infinite}
.cam.alert{outline:2px solid var(--acc);outline-offset:-2px}
.cam .mv{position:absolute;right:8px;bottom:7px;font-size:11px;background:var(--acc);color:#1a1300;padding:2px 7px;border-radius:5px;font-weight:700;display:none}
.cam.alert .mv{display:block}
@keyframes blink{50%{opacity:.15}}

/* sections */
section{padding:80px 0}
section.alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
h2{font-size:34px;margin:0 0 10px;letter-spacing:-.4px}
.sub{color:var(--mute);margin:0 0 40px;max-width:640px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px}
.card h3{margin:14px 0 8px;font-size:19px}
.card p{margin:0;color:var(--mute);font-size:15px}
.ico{width:44px;height:44px;border-radius:11px;display:grid;place-items:center;background:rgba(242,181,58,.12);color:var(--acc)}
.ico svg{width:24px;height:24px}

/* tariffs */
.plan{display:flex;flex-direction:column}
.plan.hit{border-color:var(--acc);position:relative}
.plan.hit:before{content:"Чаще всего выбирают";position:absolute;top:-12px;left:24px;background:var(--acc);color:#1a1300;font-size:12px;font-weight:700;padding:3px 10px;border-radius:99px}
.price{font-size:34px;font-weight:700;margin:10px 0 2px}
.price small{font-size:15px;color:var(--mute);font-weight:500}
.plan ul{list-style:none;padding:0;margin:18px 0 24px;flex:1}
.plan li{padding:7px 0 7px 26px;position:relative;color:#c8d3de;font-size:15px;border-bottom:1px dashed #223042}
.plan li:before{content:"";position:absolute;left:2px;top:13px;width:12px;height:7px;border-left:2px solid var(--acc2);border-bottom:2px solid var(--acc2);transform:rotate(-45deg)}
.note{color:var(--mute);font-size:14px;margin-top:18px}

/* steps */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.step{counter-increment:s;padding-top:52px;position:relative}
.step:before{content:counter(s);position:absolute;top:0;left:0;width:38px;height:38px;border-radius:50%;border:1px solid var(--acc);color:var(--acc);display:grid;place-items:center;font-weight:700}
.step h3{margin:0 0 6px;font-size:18px}
.step p{margin:0;color:var(--mute);font-size:15px}

/* cities */
.cities{display:flex;flex-wrap:wrap;gap:10px}
.cities span{background:var(--card);border:1px solid var(--line);padding:8px 14px;border-radius:99px;font-size:14px}

/* faq */
details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 20px;margin-bottom:10px}
summary{cursor:pointer;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:20px}
summary::-webkit-details-marker{display:none}
summary:after{content:"+";color:var(--acc);font-size:22px;line-height:1}
details[open] summary:after{content:"–"}
details p{color:var(--mute);margin:12px 0 0}

/* form */
.req{display:grid;grid-template-columns:1fr 1.1fr;gap:50px;align-items:start}
form.f{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:28px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
label.fl{display:block;margin-bottom:14px;font-size:14px;color:var(--mute)}
.fl input,.fl select,.fl textarea{display:block;width:100%;margin-top:6px;background:#0f151c;border:1px solid var(--line);color:var(--ink);border-radius:10px;padding:12px 13px;font:inherit;font-size:15px}
.fl textarea{min-height:90px;resize:vertical}
.fl input:focus,.fl select:focus,.fl textarea:focus{outline:none;border-color:var(--acc)}
.chk{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--mute);margin:4px 0 18px}
.chk input{margin-top:3px}
.msg{display:none;margin-top:14px;padding:12px 14px;border-radius:10px;font-size:14px}
.msg.ok{display:block;background:rgba(47,191,143,.12);border:1px solid rgba(47,191,143,.35);color:#9fe8cc}
.msg.err{display:block;background:rgba(255,77,77,.1);border:1px solid rgba(255,77,77,.35);color:#ffb3b3}
.contact-list{list-style:none;padding:0;margin:24px 0 0}
.contact-list li{padding:12px 0;border-bottom:1px solid var(--line);color:var(--mute)}
.contact-list b{color:var(--ink);display:block}

footer{padding:40px 0;color:var(--mute);font-size:14px;border-top:1px solid var(--line)}
footer .wrap{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
footer a{color:var(--mute)}

/* cabinet */
.auth{min-height:calc(100vh - 66px);display:grid;place-items:center;padding:40px 22px;background:radial-gradient(700px 400px at 50% 0%,rgba(242,181,58,.08),transparent 60%)}
.auth-box{width:100%;max-width:410px}
.auth-box h1{font-size:28px;margin:0 0 6px}
.auth-box .sub{margin-bottom:24px}
.auth-box form.f{padding:26px}
.auth-foot{display:flex;justify-content:space-between;margin-top:6px;font-size:14px}
.auth-foot a{color:var(--mute)}
.apps{display:flex;gap:10px;margin-top:22px}
.apps span{flex:1;text-align:center;border:1px solid var(--line);border-radius:10px;padding:10px;font-size:13px;color:var(--mute)}

.doc{max-width:820px;padding:60px 22px}
.doc h1{font-size:34px}
.doc h2{font-size:22px;margin-top:34px}
.doc p,.doc li{color:#c3cfdb}

@media (max-width:960px){
  .hero .wrap,.req{grid-template-columns:1fr}
  .grid3,.grid4,.steps{grid-template-columns:1fr 1fr}
  h1{font-size:36px}
  nav.main{display:none;position:absolute;top:66px;left:0;right:0;background:var(--bg2);flex-direction:column;padding:18px 22px;border-bottom:1px solid var(--line)}
  nav.main.open{display:flex}
  .burger{display:block}
  header.top .btn{display:none}
}
@media (max-width:600px){
  .grid3,.grid4,.steps,.row{grid-template-columns:1fr}
  section{padding:56px 0}
  h2{font-size:27px}
}