/* ==========================================================================
   Hi-Tech Security Solutions — site stylesheet
   Black base, logo red accent, Archivo + IBM Plex Sans (self-hosted)
   ========================================================================== */

@font-face{font-family:"Archivo";src:url(../fonts/archivo-var.woff2) format("woff2");font-weight:100 900;font-stretch:62% 125%;font-display:swap}
@font-face{font-family:"IBM Plex Sans";src:url(../fonts/plex-400.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"IBM Plex Sans";src:url(../fonts/plex-500.woff2) format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:"IBM Plex Sans";src:url(../fonts/plex-600.woff2) format("woff2");font-weight:600;font-display:swap}

:root{
  --bg:#000;
  --s1:#0f0f0f;
  --s2:#181818;
  --line:#2b2b2b;
  --line-soft:#1c1c1c;
  --text:#f5f5f5;
  --muted:#a8a8a8;
  --red:#e5161d;
  --red-hi:#ff4747;
  --tile:#e9ebee;
  --display:"Archivo","Arial Narrow",Arial,sans-serif;
  --body:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --wrap:1200px;
  --gut:clamp(20px,4vw,40px);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:400 1.0625rem/1.65 var(--body);-webkit-font-smoothing:antialiased}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
::selection{background:var(--red);color:#fff}
:focus-visible{outline:2px solid var(--red-hi);outline-offset:3px}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding-inline:var(--gut)}
.skip{position:absolute;left:-999px;top:8px;background:#fff;color:#000;padding:10px 16px;z-index:100;border-radius:4px}
.skip:focus{left:8px}

/* ---------- icons ---------- */
.ico{width:1em;height:1em;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none}
.ico .acc{stroke:var(--red-hi)}

/* ---------- top bar ---------- */
.topbar{background:var(--s1);border-bottom:1px solid var(--line-soft);font-size:.875rem}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;gap:16px;min-height:42px}
.topbar p{color:var(--muted)}
.topbar .nums{display:flex;gap:24px;flex-wrap:wrap}
.topbar a{display:inline-flex;align-items:center;gap:8px;font-weight:500;font-variant-numeric:tabular-nums}
.topbar a:hover{color:var(--red-hi)}
.topbar .ico{color:var(--red-hi);font-size:15px}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(0,0,0,.94);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:80px}
.brand{display:flex;align-items:center;gap:14px}
.brand img{height:58px;width:auto}
.brand b{font:800 1.2rem/1.1 var(--display);font-stretch:112%;letter-spacing:-.005em;max-width:9em}
.nav ul{display:flex;gap:4px;list-style:none}
.nav a{display:block;padding:10px 16px;color:#cfcfcf;font-weight:500;border-bottom:2px solid transparent;transition:color .15s,border-color .15s}
.nav a:hover{color:#fff}
.nav a[aria-current="page"]{color:#fff;border-bottom-color:var(--red)}
.nav-toggle{display:none;width:46px;height:46px;background:none;border:1px solid var(--line);border-radius:4px;color:#fff;cursor:pointer;align-items:center;justify-content:center}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{display:block;width:20px;height:2px;background:currentColor;position:relative;transition:transform .2s,background .2s}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-open .nav-toggle span{background:transparent}
.nav-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg)}
.nav-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 26px;border-radius:4px;border:1px solid transparent;font:600 1rem/1.2 var(--body);cursor:pointer;transition:background .15s,border-color .15s,color .15s}
.btn .ico{font-size:18px}
.btn-red{background:var(--red);color:#fff}
.btn-red:hover{background:#ff2a31}
.btn-ghost{border-color:#4c4c4c;color:#fff}
.btn-ghost:hover{border-color:#fff}
.actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- shared type ---------- */
.sec-title{font:800 clamp(1.8rem,3.4vw,2.75rem)/1.1 var(--display);font-stretch:108%;letter-spacing:-.01em;text-wrap:balance}
.sec-lead{color:var(--muted);max-width:40em;margin-top:16px}
.sec-head{margin-bottom:clamp(32px,5vw,56px)}
.section{padding:clamp(56px,8vw,104px) 0}
.section-alt{background:var(--s1);border-block:1px solid var(--line-soft)}
.prose p+p{margin-top:1.1em}
.prose p{color:#d6d6d6;max-width:42em}

/* ---------- viewfinder corners + camera feed tile ---------- */
.brackets::after{
  --b:rgba(10,10,10,.6);--l:16px;--t:2px;
  content:"";position:absolute;inset:10px;pointer-events:none;
  background:
    linear-gradient(var(--b),var(--b)) top left/var(--l) var(--t) no-repeat,
    linear-gradient(var(--b),var(--b)) top left/var(--t) var(--l) no-repeat,
    linear-gradient(var(--b),var(--b)) top right/var(--l) var(--t) no-repeat,
    linear-gradient(var(--b),var(--b)) top right/var(--t) var(--l) no-repeat,
    linear-gradient(var(--b),var(--b)) bottom left/var(--l) var(--t) no-repeat,
    linear-gradient(var(--b),var(--b)) bottom left/var(--t) var(--l) no-repeat,
    linear-gradient(var(--b),var(--b)) bottom right/var(--l) var(--t) no-repeat,
    linear-gradient(var(--b),var(--b)) bottom right/var(--t) var(--l) no-repeat;
}
.feed{position:relative;aspect-ratio:4/3;background:var(--tile);border-radius:3px;display:grid;place-items:center;overflow:hidden}
.feed img,.tile img,.shot img{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:auto;height:auto;mix-blend-mode:multiply}
.feed img{max-width:72%;max-height:72%}
.feed .cam{position:absolute;left:16px;top:14px;font:600 .6875rem/1 var(--body);letter-spacing:.06em;color:#1b1b1b}

/* ---------- home hero ---------- */
.hero{position:relative;overflow:hidden;padding:clamp(48px,7vw,96px) 0 clamp(56px,7vw,96px)}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(55% 70% at 88% 25%,#1d1d1d 0%,transparent 70%);pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,1.02fr) minmax(0,.98fr);gap:clamp(32px,6vw,88px);align-items:center}
.hero h1{font:800 clamp(2.5rem,5.2vw,4.5rem)/1.03 var(--display);font-stretch:114%;letter-spacing:-.015em;text-wrap:balance;margin-bottom:24px}
.hero .lead{font-size:clamp(1.1rem,1.7vw,1.35rem);line-height:1.55;color:#dedede;max-width:30em;margin-bottom:36px}

.wall{border:1px solid var(--line);background:#050505;border-radius:8px;padding:12px;box-shadow:0 40px 90px rgba(0,0,0,.7)}
.wall-bar{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:2px 4px 12px;font-size:.8125rem;color:var(--muted);font-variant-numeric:tabular-nums}
.rec{display:inline-flex;align-items:center;gap:8px;color:#fff;font-weight:600;letter-spacing:.05em}
.rec i{width:10px;height:10px;border-radius:50%;background:var(--red);animation:blink 1.4s steps(1,end) infinite}
@keyframes blink{0%,60%{opacity:1}61%,100%{opacity:.12}}
.wall-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.wall .feed{animation:power .7s cubic-bezier(.2,.7,.2,1) both}
.wall .feed:nth-child(2){animation-delay:.15s}
.wall .feed:nth-child(3){animation-delay:.3s}
.wall .feed:nth-child(4){animation-delay:.45s}
@keyframes power{from{opacity:0;filter:brightness(0)}to{opacity:1;filter:none}}

/* ---------- city strip ---------- */
.strip{border-block:1px solid var(--line);background:var(--s1)}
.strip .wrap{display:flex;flex-wrap:wrap;gap:18px 40px;align-items:center;justify-content:space-between;padding-block:24px}
.strip p{max-width:30em;color:#e6e6e6;font-weight:500}
.cities{display:flex;flex-wrap:wrap;gap:10px;list-style:none}
.cities li{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border:1px solid var(--line);border-radius:999px;font-weight:500;background:#000}
.cities .ico{font-size:14px;color:var(--red-hi)}

/* ---------- three-column divided blocks ---------- */
.cols3{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line)}
.col{padding:36px 32px 12px;border-right:1px solid var(--line)}
.col:first-child{padding-left:0}
.col:last-child{padding-right:0;border-right:0}
.col .ico{font-size:46px;stroke-width:1.5;margin-bottom:26px;color:#fff}
.col h3{font:700 1.4rem/1.2 var(--display);font-stretch:108%;margin-bottom:10px}
.col p{color:var(--muted)}
.col p.plain{color:#d2d2d2}
.after-cols{display:flex;flex-wrap:wrap;gap:14px;margin-top:40px}

/* ---------- process steps ---------- */
.split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(32px,6vw,88px);align-items:start}
.steps{list-style:none;counter-reset:s;border-top:1px solid var(--line)}
.steps li{counter-increment:s;display:flex;align-items:center;gap:22px;padding:24px 0;border-bottom:1px solid var(--line);font:600 1.3rem/1.25 var(--display);font-stretch:106%}
.steps li::before{content:counter(s);flex:none;width:46px;height:46px;border:1px solid var(--red);border-radius:50%;display:grid;place-items:center;font:700 1rem var(--display);color:#fff}

/* ---------- product tiles ---------- */
.tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.tile{position:relative;height:210px;background:var(--tile);border-radius:3px}
.tile img{max-width:calc(100% - 40px);max-height:calc(100% - 40px)}
.tiles-foot{margin-top:32px}

/* ---------- category lists ---------- */
.cats{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,6vw,80px);align-items:start}
.cat h3{font:700 1.5rem/1.2 var(--display);font-stretch:108%;padding-bottom:16px;border-bottom:2px solid var(--red)}
.cat ul{list-style:none}
.cat a{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:13px 0;border-bottom:1px solid var(--line);color:#e4e4e4;transition:color .15s}
.cat a::after{content:"";flex:none;width:7px;height:7px;border-top:2px solid currentColor;border-right:2px solid currentColor;transform:rotate(45deg)}
.cat a:hover{color:var(--red-hi)}

/* ---------- brands ---------- */
.brand-grid{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.brand-grid li{background:#000;padding:28px 22px;min-height:96px;display:flex;flex-direction:column;justify-content:center;gap:4px;font:700 1.2rem/1.2 var(--display);font-stretch:108%;color:#e2e2e2}
.brand-grid small{font:400 .8125rem/1.35 var(--body);color:var(--muted)}

/* ---------- call band ---------- */
.cta{background:var(--s1);border-top:1px solid var(--line)}
.cta .wrap{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:clamp(28px,6vw,80px);align-items:center;padding-block:clamp(48px,7vw,88px)}
.cta h2{font:800 clamp(1.9rem,3.8vw,3rem)/1.08 var(--display);font-stretch:112%;letter-spacing:-.01em;text-wrap:balance}
.cta .nums{display:grid;gap:6px;margin-bottom:26px}
.cta .nums a{font:700 clamp(1.6rem,3vw,2.3rem)/1.2 var(--display);font-stretch:108%;font-variant-numeric:tabular-nums;width:fit-content;transition:color .15s}
.cta .nums a:hover{color:var(--red-hi)}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);padding-top:56px;font-size:.9375rem}
.foot-grid{display:grid;grid-template-columns:1.4fr .8fr 1.1fr;gap:clamp(28px,5vw,64px)}
.foot-brand .brand{margin-bottom:18px}
.foot-brand p{color:var(--muted);max-width:22em}
.site-footer h4{font:700 1rem/1.2 var(--display);font-stretch:108%;margin-bottom:14px}
.site-footer ul{list-style:none;display:grid;gap:10px}
.site-footer a{color:#d8d8d8;transition:color .15s}
.site-footer a:hover{color:var(--red-hi)}
.foot-contact li{display:flex;gap:10px;align-items:center;font-variant-numeric:tabular-nums}
.foot-contact .ico{font-size:16px;color:var(--red-hi)}
.foot-bottom{margin-top:48px;border-top:1px solid var(--line-soft)}
.foot-bottom .wrap{display:flex;justify-content:space-between;align-items:center;gap:12px 24px;flex-wrap:wrap;padding-block:20px;color:var(--muted);font-size:.875rem}
.foot-bottom .credit{margin-left:auto;font-size:.75rem}
.foot-bottom .credit a{color:var(--muted);text-decoration:underline;text-underline-offset:3px;text-decoration-color:#555}
.foot-bottom .credit a:hover{color:#fff}

/* ---------- inner page hero ---------- */
.page-hero{border-bottom:1px solid var(--line);background:radial-gradient(50% 130% at 92% 0%,#1a1a1a,transparent 70%);padding:clamp(44px,6vw,80px) 0 clamp(36px,5vw,60px)}
.page-hero .wrap{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:40px;align-items:end}
.crumbs{display:flex;gap:10px;font-size:.875rem;color:var(--muted);margin-bottom:20px;list-style:none}
.crumbs li+li::before{content:"/";margin-right:10px;color:#555}
.crumbs a:hover{color:#fff}
.page-hero h1{font:800 clamp(2.4rem,6vw,4.8rem)/1 var(--display);font-stretch:116%;letter-spacing:-.02em}
.hero-feed{width:270px}

/* ---------- about ---------- */
.lead-big{font:600 clamp(1.4rem,2.8vw,2.1rem)/1.35 var(--display);font-stretch:104%;max-width:24em;margin-bottom:28px;text-wrap:balance}

/* ---------- services ---------- */
.svc-lead{font:500 clamp(1.3rem,2.4vw,1.8rem)/1.5 var(--body);max-width:30em;color:#fff;margin-bottom:clamp(36px,5vw,64px);text-wrap:pretty}
.chips{list-style:none;display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.chips li{padding:9px 16px;border:1px solid var(--line);border-radius:999px;font-weight:500;color:#e6e6e6}
.callout{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center;border:1px solid var(--line);border-left:4px solid var(--red);background:var(--s1);padding:clamp(24px,4vw,44px)}
.callout p{font:500 clamp(1.15rem,2vw,1.5rem)/1.5 var(--body);max-width:30em}

/* ---------- services: systems we service ---------- */
.sys{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:28px 12px}
.sys .tile{height:180px}
.sys a{display:flex;justify-content:space-between;align-items:center;gap:12px;padding-top:14px;font:600 1.05rem/1.3 var(--display);font-stretch:106%;transition:color .15s}
.sys a::after{content:"";flex:none;width:7px;height:7px;border-top:2px solid currentColor;border-right:2px solid currentColor;transform:rotate(45deg)}
.sys a:hover{color:var(--red-hi)}
.sys-title{font:700 1.5rem/1.2 var(--display);font-stretch:108%;margin-bottom:28px}
.callout{margin-top:clamp(40px,6vw,72px)}

/* ---------- products ---------- */
.catalog{display:grid;grid-template-columns:250px minmax(0,1fr);gap:clamp(32px,5vw,72px);align-items:start;padding:clamp(40px,6vw,72px) 0 clamp(56px,8vw,104px)}
.catalog>*{min-width:0}
.side{position:sticky;top:104px;max-height:calc(100vh - 128px);overflow:auto;padding-right:6px}
.side h3{font:700 1rem/1.2 var(--display);font-stretch:108%;margin-bottom:10px}
.side ul{list-style:none;margin-bottom:30px}
.side a{display:block;padding:8px 0 8px 14px;border-left:2px solid var(--line);color:var(--muted);font-size:.9375rem;line-height:1.35;transition:color .15s,border-color .15s}
.side a:hover,.side a.on{color:#fff;border-left-color:var(--red)}
.group+.group{margin-top:80px}
.group-title{display:flex;align-items:center;gap:20px;font:800 clamp(1.7rem,3.2vw,2.3rem)/1.1 var(--display);font-stretch:112%;margin-bottom:12px;scroll-margin-top:100px}
.group-title::after{content:"";flex:1;height:1px;background:var(--line)}
.pblock{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:clamp(20px,4vw,48px);padding:36px 0;border-top:1px solid var(--line-soft);scroll-margin-top:100px}
.group-title+.pblock{border-top:0}
.pblock h2{font:700 1.55rem/1.2 var(--display);font-stretch:108%;margin-bottom:14px}
.pblock p{color:#cfcfcf;max-width:34em}
.pblock p+p{margin-top:.7em}
.ticks{list-style:none}
.ticks li{position:relative;padding:6px 0 6px 22px;color:#d0d0d0;line-height:1.5}
.ticks li::before{content:"";position:absolute;left:0;top:1em;width:8px;height:8px;background:var(--red)}
.pblock .intro{margin-bottom:10px}
.shots{display:flex;flex-wrap:wrap;gap:10px;align-content:flex-start}
.shot{position:relative;flex:1 1 140px;max-width:210px;height:170px;background:var(--tile);border-radius:3px}
.shot img{max-width:calc(100% - 28px);max-height:calc(100% - 28px)}
.shot.photo{flex-basis:100%;max-width:460px;height:auto;overflow:hidden}
.shot.photo img{position:static;transform:none;display:block;width:100%;max-width:100%;max-height:none;mix-blend-mode:normal}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:clamp(36px,6vw,88px);padding:clamp(44px,6vw,80px) 0 clamp(56px,8vw,104px)}
.field{display:grid;gap:8px;margin-bottom:22px}
.field label{font-weight:500;font-size:.9375rem}
.field input,.field textarea{width:100%;background:var(--s1);border:1px solid var(--line);border-radius:4px;color:#fff;padding:14px 16px;font:inherit;transition:border-color .15s,background .15s}
.field textarea{min-height:160px;resize:vertical}
.field input:hover,.field textarea:hover{border-color:#444}
.field input:focus,.field textarea:focus{outline:2px solid var(--red-hi);outline-offset:1px;border-color:transparent;background:#000}
.info .row{display:flex;gap:20px;padding:26px 0;border-bottom:1px solid var(--line)}
.info .row:first-child{border-top:1px solid var(--line)}
.info .ico{font-size:24px;color:var(--red-hi);margin-top:3px}
.info h3{font:700 1.05rem/1.2 var(--display);font-stretch:108%;margin-bottom:8px}
.info p,.info a{color:#d6d6d6;display:block;font-variant-numeric:tabular-nums}
.info a:hover{color:var(--red-hi)}
.info .maplink{display:inline-block;margin-top:10px;color:var(--red-hi);text-decoration:underline;text-underline-offset:3px}

/* ---------- thank you / 404 ---------- */
.center-page{min-height:60vh;display:grid;place-items:center;text-align:center;padding:clamp(56px,10vw,120px) 0}
.center-page .mark{width:84px;height:84px;margin:0 auto 28px;border:1px solid var(--red);border-radius:50%;display:grid;place-items:center;color:#fff}
.center-page .mark .ico{font-size:38px;stroke-width:1.6}
.center-page h1{font:800 clamp(2.4rem,6vw,4.2rem)/1.05 var(--display);font-stretch:114%;margin-bottom:16px}
.center-page p{color:var(--muted);margin-bottom:32px}
.big404{font:800 clamp(5rem,18vw,11rem)/.9 var(--display);font-stretch:125%;letter-spacing:-.03em;color:#fff;margin-bottom:12px}

/* ---------- responsive ---------- */
@media (max-width:1040px){
  .brand-grid{grid-template-columns:repeat(2,1fr)}
  .tiles{grid-template-columns:repeat(2,1fr)}
  .sys{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:960px){
  .topbar p{display:none}
  .topbar .wrap{justify-content:center}
  .nav-toggle{display:inline-flex}
  .nav{position:absolute;left:0;right:0;top:100%;background:#000;border-bottom:1px solid var(--line);display:none}
  .nav-open .nav{display:block}
  .nav ul{flex-direction:column;gap:0;padding:8px var(--gut) 16px}
  .nav a{padding:14px 0;border-bottom:1px solid var(--line-soft)}
  .nav a[aria-current="page"]{border-bottom-color:var(--red)}
  .hero-grid,.split,.cta .wrap,.contact-grid{grid-template-columns:1fr}
  .cats{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .foot-brand{grid-column:1/-1}
  .page-hero .wrap{grid-template-columns:1fr}
  .hero-feed{display:none}
  .catalog{grid-template-columns:1fr}
  .side{position:static;max-height:none;overflow:visible;padding:0}
  .side ul{display:flex;gap:8px;overflow-x:auto;margin-bottom:18px;padding-bottom:6px}
  .side a{border:1px solid var(--line);border-radius:999px;padding:8px 14px;white-space:nowrap}
  .side a:hover,.side a.on{border-color:var(--red)}
  .pblock{grid-template-columns:1fr}
}
@media (max-width:720px){
  .cols3{grid-template-columns:1fr}
  .col,.col:first-child,.col:last-child{padding:30px 0 10px;border-right:0;border-bottom:1px solid var(--line)}
  .col:last-child{border-bottom:0}
  .callout{grid-template-columns:1fr}
  .brand b{font-size:1.05rem}
  .brand img{height:50px}
  .site-header .wrap{min-height:72px}
  .tile{height:170px}
  .sys{grid-template-columns:1fr}
  .topbar .nums{gap:6px 18px;justify-content:center}
  .foot-grid{grid-template-columns:1fr}
}
@media (max-width:420px){
  .brand-grid{grid-template-columns:1fr}
  .brand{gap:10px}
  .brand b{font-size:.95rem;max-width:7.5em}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}