:root{--navy:#06142a;--dark:#081a30;--ink:#0f1f33;--text:#3a4d61;--mute:#5d7185;--cyan:#12c8ee;--deep:#0a7f9c;--line:#dbe4ee;--soft:#f4f8fc}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{margin:0;background:#fff;color:var(--text);font:16px/1.7 Arial,Helvetica,"Segoe UI",sans-serif}
a{color:var(--deep)}
h1,h2,h3{line-height:1.15;margin:0 0 .6em;color:var(--ink)}
h2{font-size:clamp(1.8rem,3.6vw,2.6rem);font-weight:800}
h3{font-size:1.05rem}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
section.wrap,.dark .wrap,.tint .wrap{padding-top:88px;padding-bottom:88px}
.kicker{color:var(--cyan);font-weight:800;letter-spacing:.14em;text-transform:uppercase;font-size:.8rem;margin:0 0 1em}
.sub{max-width:72ch;color:var(--mute)}
.center{text-align:center}
.center .sub{margin:0 auto 44px}
.two{display:grid;grid-template-columns:1fr 1.15fr;gap:56px;align-items:start}
.intro{grid-template-columns:.9fr 1.1fr;align-items:center}
.top{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;padding:10px max(20px,calc((100% - 1140px)/2));background:#fff;border-bottom:1px solid var(--line);flex-wrap:wrap}
.brand{display:flex;align-items:center;font-weight:800;font-size:1.3rem;color:var(--deep);text-decoration:none}
.brand img{height:58px;width:auto;display:block}
.wm b{display:block;font-size:1.7rem;line-height:1;color:#1fb5b0;letter-spacing:.02em}
.wm small{display:block;font-size:.7rem;font-weight:400;color:#1fa39a;letter-spacing:.04em}
#nav a{color:var(--ink);text-decoration:none;margin-left:22px;font-weight:700;font-size:.95rem}
#nav a:hover{color:var(--deep)}
.burger{display:none;background:#fff;border:1px solid var(--line);color:var(--ink);font-size:1.3rem;padding:2px 10px;border-radius:6px}
/* hero */
.hero{padding:96px 0 84px;color:#fff;background:radial-gradient(700px 450px at 85% 35%,rgba(0,150,190,.38),transparent 70%),linear-gradient(135deg,#0a2547 0%,#06142a 55%,#040d1c 100%)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.hero .kicker{font-size:.95rem}
.hero h1{color:#fff;font-size:clamp(2.4rem,5vw,4.1rem);font-weight:800;letter-spacing:-.01em;line-height:1.05;margin-bottom:.5em}
.lead{color:#9fb7d6;font-size:1.1rem;max-width:58ch}
.btns{display:flex;gap:14px;flex-wrap:wrap;margin:32px 0}
.btn{display:inline-block;padding:15px 26px;border-radius:999px;font:700 1rem Arial,sans-serif;text-decoration:none;cursor:pointer;color:#fff;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.18)}
.btn:hover{border-color:var(--cyan)}
.btn.primary{background:linear-gradient(90deg,#00c6ff,#0a7bff);border-color:transparent;color:#04152b}
.btn.wide{width:100%}
.stats{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.stats li{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:18px;padding:18px 18px 22px}
.stats strong{display:block;color:#fff;font-size:1.35rem;line-height:1.3;margin-bottom:6px}
.stats span{color:#9fb7d6;font-size:.85rem}
.monitor{background:#07152a;border:1px solid rgba(255,255,255,.12);border-radius:34px;padding:22px 18px 18px;box-shadow:0 30px 60px rgba(0,0,0,.4)}
.dots{display:flex;gap:8px;margin:0 0 16px 8px}
.dots i{width:9px;height:9px;border-radius:50%;background:#4b5a6e}
.tiles{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.tiles>i{position:relative;display:block;height:92px;border-radius:14px;background:#10305a}
.tiles>i::before{content:"";position:absolute;inset:10px 10px 12px;border:1px solid rgba(120,190,255,.45);border-radius:8px;background:linear-gradient(160deg,#0f3463,#0a2444)}
.tiles>i::after{content:"";position:absolute;left:10px;right:10px;bottom:10px;height:4px;border-radius:0 0 8px 8px;background:#14b8a6}
.alert{position:absolute;right:6px;bottom:6px;width:68%;padding:14px 18px;border-radius:16px;background:rgba(18,92,120,.6);border:1px solid rgba(25,211,243,.55);backdrop-filter:blur(6px);color:#fff;text-align:left}
.alert b{display:block;font-size:1.05rem}
.alert span{display:block;color:#bcd6ee;font-size:.82rem}
/* dark feature + contact sections */
.dark{background:linear-gradient(180deg,#081a30,#06142a);color:#a9c4e6}
.dark h2,.dark h3{color:#fff}
.dark .sub{color:#a9c4e6}
.cards4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:left}
.dcard{background:rgba(255,255,255,.055);border:1px solid rgba(130,170,230,.2);border-radius:22px;padding:22px 20px 18px}
.dcard h3{font-size:1.1rem;margin-bottom:.8em}
.dcard ul{font-size:.88rem;color:#a9c4e6}
.dcard li::marker{color:var(--cyan)}
ul{margin:0;padding-left:1.1em}li{margin:.35em 0}
/* platform */
.cards3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;text-align:left}
.pcard{background:var(--soft);border:1px solid #e1ebf5;border-radius:26px;padding:26px;box-shadow:0 12px 30px rgba(20,60,110,.08)}
.num{display:grid;place-items:center;width:46px;height:46px;border-radius:14px;margin-bottom:22px;background:linear-gradient(135deg,#00c6ff,#0a7bff);color:#04152b;font-weight:800;font-size:.9rem}
.pcard h3{font-size:1.3rem}
.pcard p{margin:0;color:var(--mute)}
/* clients */
.tint{background:linear-gradient(180deg,#f6fdff,#e9f8fc 20%,#e9f8fc 80%,#f6fdff)}
.ccard{background:#fff;border:1px solid #e3eef5;border-radius:30px;padding:30px;box-shadow:0 14px 40px rgba(20,80,120,.1)}
.ccard h3{font-size:1.4rem}
.ccard ul{color:var(--mute)}
/* onvif */
.stack{display:grid;gap:14px}
.ocard{background:var(--soft);border:1px solid #dfe9f3;border-radius:20px;padding:20px 24px}
.ocard h3{color:#0a6cf0;font-size:1.3rem;margin:0 0 4px}
.ocard p{margin:0;color:var(--mute)}
/* contact */
.cthead{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start;margin-bottom:28px}
.cthead p{max-width:52ch}
.info{border:1px solid rgba(130,170,230,.25);background:rgba(255,255,255,.05);border-radius:22px;padding:20px 24px;font-size:.9rem}
.info p{margin:0 0 10px;color:#d6e4f5}.info b{color:#fff}
form{background:rgba(255,255,255,.05);border:1px solid rgba(25,211,243,.28);border-radius:26px;padding:30px 26px}
form h3{font-size:1.1rem;letter-spacing:.06em;text-transform:uppercase;margin-bottom:1.2em}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
label,.lbl{display:block;margin-bottom:14px;font-size:.78rem;font-weight:700;color:#fff}
input,select,textarea{display:block;width:100%;margin-top:6px;padding:12px 14px;background:#091a2e;color:#fff;border:1px solid rgba(255,255,255,.14);border-radius:12px;font:inherit;font-size:.9rem;font-weight:400}
::placeholder{color:#7e93ad}
input:focus,select:focus,textarea:focus,.btn:focus-visible,.burger:focus-visible,a:focus-visible,#caprf:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
.hp{position:absolute;left:-9999px}
.cap{display:flex;gap:8px;margin-bottom:12px}
.cap output{flex:1;padding:10px;text-align:center;font-weight:800;color:#fff;background:linear-gradient(90deg,#0d3350,#10294a);border:1px solid rgba(25,211,243,.4);border-radius:12px}
#caprf{width:42px;background:#091a2e;border:1px solid rgba(25,211,243,.5);color:var(--cyan);border-radius:12px;font-size:1.1rem;cursor:pointer}
#msg{color:#ff8a70;min-height:1.4em;margin:10px 0}
footer{padding:28px 0;background:#040f1f;color:#9fb7d6;font-size:.85rem}
footer b{color:#fff;font-size:1rem}
.foot{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:flex-end}
dialog{background:#fff;color:var(--text);border:0;border-radius:18px;padding:30px;max-width:420px;box-shadow:0 30px 70px rgba(0,0,0,.35)}
dialog h3{color:var(--ink)}dialog .btn{color:#04152b}
dialog::backdrop{background:rgba(4,13,28,.65)}
@media(max-width:1000px){.cards4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:900px){
  .hero-grid,.two,.intro,.cthead{grid-template-columns:1fr;gap:32px}
  .cards3,.stats,.row2{grid-template-columns:1fr}
  .burger{display:block}
  #nav{display:none;width:100%;flex-direction:column;padding-top:10px}
  #nav.open{display:flex}
  #nav a{margin:0;padding:12px 0;border-top:1px solid var(--line)}
  .tiles>i{height:64px}
}
@media(max-width:560px){.cards4{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}