/* HD COOL KAMERARENDSZEREK R28 — completely namespaced, self-contained stylesheet */
:root{color-scheme:dark;--hc28-ink:#f5fbff;--hc28-mute:#b5d0df;--hc28-cyan:#04d9f4;--hc28-outer:#031724;--hc28-panel:#06283b;--hc28-line:#14718d}
*{box-sizing:border-box}html{scroll-behavior:smooth}body.hc28-body{margin:0;background:radial-gradient(ellipse 94% 74% at 25% 35%,#073553 0%,#041c2b 55%,#031321 95%);color:var(--hc28-ink);font:15px/1.45 Arial,Helvetica,sans-serif;-webkit-font-smoothing:antialiased} .hc28-body a{color:inherit;text-decoration:none}.hc28-body button{font:inherit}.hc28-body img{max-width:100%} .hc28-body :focus-visible{outline:3px solid #67ecff;outline-offset:4px} .hc28-body svg{width:1em;height:1em;fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.7}.hc28-svg-defs{position:absolute;width:0!important;height:0!important;overflow:hidden}.hc28-skip{position:absolute;left:10px;top:-100px;z-index:101;padding:10px;background:var(--hc28-cyan);color:#041623!important}.hc28-skip:focus{top:10px}
/* Frame and header */
.hc28-header{height:63px;background:#031421;position:relative;z-index:30;border-bottom:1px solid #13506a}.hc28-header-inner{max-width:1500px;margin:auto;min-height:63px;padding:0 clamp(19px,2.1vw,34px);display:flex;align-items:center;justify-content:space-between;gap:12px}.hc28-logo{display:flex;align-items:center;gap:7px;flex-shrink:0;line-height:1}.hc28-logo-symbol{display:block!important;width:42px!important;height:48px!important;flex:0 0 42px;stroke:none}.hc28-logo-word strong{font:bold italic 26px/1 Arial Black,Arial,sans-serif;letter-spacing:-1.4px;display:block;white-space:nowrap}.hc28-logo-word em{color:#0bdef1;font-style:italic}.hc28-logo-word small{font-size:9px;font-weight:900;letter-spacing:3px;margin-left:1px;white-space:nowrap}.hc28-nav{display:flex;align-items:center;gap:clamp(6px,.8vw,16px);white-space:nowrap;height:100%;margin:auto}.hc28-nav a{font-size:clamp(10px,.73vw,12px);font-weight:900;letter-spacing:-.2px;padding:23px 1px 20px;border-bottom:3px solid transparent;transition:color .2s,border-color .2s}.hc28-nav a:hover,.hc28-nav a[aria-current=page]{color:#fff;border-bottom-color:var(--hc28-cyan)}.hc28-head-actions{display:flex;align-items:center;gap:8px;flex-shrink:0}.hc28-head-phone{border:1px solid #13b8db;border-radius:7px;box-shadow:0 0 10px #08d3ff2b;padding:3px 10px;display:flex;flex-direction:column;align-items:flex-start;white-space:nowrap}.hc28-head-phone span{font-weight:900;font-size:12px}.hc28-head-phone small{font-weight:600;font-size:10px;color:#9de8f5}.hc28-mobile-phone,.hc28-menu-toggle,.hc28-mobile-nav{display:none}
.hc28-frame{max-width:1500px;margin:13px auto 0;width:calc(100% - 46px);border:1px solid #08c6eb;border-radius:17px;overflow:hidden;box-shadow:0 0 0 1px #032637 inset,0 15px 55px #00121a9b;background:linear-gradient(120deg,#06273b,#031b29)}
/* Cinematic desktop hero */
.hc28-hero{height:clamp(355px,33.3vw,475px);position:relative;overflow:hidden;background:#072a3f}.hc28-hero-art{position:absolute;inset:0 0 0 31%;background-image:linear-gradient(90deg,#062b43 2%,#062b43a8 19%,#062b4320 44%,#00172500 72%),linear-gradient(0deg,#0316229c 0%,transparent 22%),url('../img/hdc28-hero.webp');background-position:center,center,center center;background-repeat:no-repeat;background-size:cover;filter:saturate(1.05)}.hc28-hero:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#05283f 0%,#05283feb 17%,#06334cb3 37%,transparent 73%);pointer-events:none}.hc28-hero-copy{position:relative;z-index:1;padding:12px clamp(24px,2.7vw,43px) 13px;max-width:1040px;height:100%;display:flex;align-items:flex-start;flex-direction:column}.hc28-crumb{display:flex;gap:10px;align-items:center;font-size:11px;font-weight:800;letter-spacing:.3px;margin-bottom:12px}.hc28-crumb b{color:#00dff6}.hc28-crumb a:hover{text-decoration:underline}.hc28-hero h1{margin:0;max-width:800px;font-size:clamp(35px,3.66vw,57px);line-height:.99;font-weight:950;font-style:italic;letter-spacing:-1.65px;text-shadow:0 2px 7px #03162445}.hc28-hero h1 span{display:block}.hc28-hero h1 .hc28-cyan{color:#00dafa}.hc28-hero-lead{margin:8px 0 10px;font-size:clamp(12px,1.09vw,16px);line-height:1.27;max-width:620px;color:#f5fcff}.hc28-hero-lead strong{color:#05def7;font-weight:800}.hc28-feature-row{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));max-width:630px;width:68%;margin-top:auto;margin-bottom:12px}.hc28-feature-row>div{min-width:0;display:flex;flex-direction:column;justify-content:flex-start;align-items:center;text-align:center;position:relative;padding:0 3px}.hc28-feature-row>div:not(:last-child){border-right:1px solid #0b97b488}.hc28-feature-row svg{font-size:25px;color:#16edff;flex-shrink:0;height:26px;margin-bottom:2px}.hc28-feature-row b{font-size:clamp(10px,.85vw,13px);line-height:1.06}.hc28-feature-row small{font-size:8px;color:#bbd5df}.hc28-badge-icon{font:bold 17px/23px Arial Black,Arial,sans-serif;display:block;height:26px;color:#fff;border:2px solid #fff;min-width:32px;border-radius:3px}.hc28-badge-icon.hc28-ai{color:#08ebff;border-color:#08ebff}.hc28-hero-actions{display:flex;gap:16px;max-width:530px;width:57%;align-items:center}.hc28-btn{height:40px;display:inline-flex;align-items:center;justify-content:center;gap:20px;font-weight:900;font-size:15px;border-radius:5px;padding:0 20px;transition:transform .15s,box-shadow .15s;background:#012031}.hc28-btn:hover{transform:translateY(-2px)}.hc28-btn-primary{background:linear-gradient(105deg,#08cee9,#0bdffa);color:#031d2b!important;box-shadow:0 7px 25px #00bdda29}.hc28-btn-primary span{font-size:22px}.hc28-btn-outline{border:1px solid #d8ebf1;color:white;min-width:131px}.hc28-mobile-hero-art{display:none}
/* Brands row */
.hc28-brands{height:58px;margin:0 10px 8px;border:1px solid #0b7e9c;border-radius:11px;background:linear-gradient(100deg,#032333,#07374c 46%,#042438 100%);box-shadow:inset 0 1px #19abc64d,0 0 13px #039dc523;display:flex;align-items:center;justify-content:space-around;gap:10px;padding:0 17px}.hc28-brand-head{font-weight:900;font-size:15px;line-height:1.1;min-width:95px}.hc28-brand-sep{height:30px;width:2px;background:#16d7ed}.hc28-brand-name{font-weight:900;color:#eff8ff;white-space:nowrap;line-height:1;font-size:clamp(15px,2.2vw,27px);font-style:italic;letter-spacing:-1px}.hc28-dahua{font-style:italic;font-weight:950}.hc28-hik{font-size:clamp(13px,2.0vw,23px)}.hc28-unv{font-weight:500;font-style:normal}.hc28-reo{font-size:clamp(17px,2.2vw,25px)}.hc28-tp{font-style:normal}.hc28-tp small,.hc28-ubi small{font-size:13px}.hc28-mik{font-size:clamp(14px,1.8vw,21px)}.hc28-ubi{font-style:normal}
/* Photographic cards */
.hc28-services{padding:0 9px 7px}.hc28-service-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:7px}.hc28-service-card{height:clamp(174px,16.7vw,240px);border:1px solid #1788a3;border-radius:9px;overflow:hidden;position:relative;background-image:linear-gradient(0deg,#021521 0%,#031c29fb 21%,#02172679 48%,transparent 75%),var(--photo);background-repeat:no-repeat;background-size:cover;background-position:center top;display:flex;align-items:flex-end;gap:9px;padding:12px 9px;color:#fff;transition:border-color .2s,transform .2s,box-shadow .2s}.hc28-service-card:before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,#0215216f,transparent 70%);pointer-events:none}.hc28-service-card:hover{border-color:#23e5f6;transform:translateY(-2px);box-shadow:0 3px 18px #02c7e948}.hc28-service-card>svg{position:relative;z-index:1;flex:0 0 35px;width:35px;height:35px;stroke:#effaff;border:1px solid #bce9f3;border-radius:7px;padding:6px;margin-bottom:8px;background:#001927a8}.hc28-service-card>span{z-index:1;position:relative;display:block;min-width:0;text-shadow:0 1px 3px #000a}.hc28-service-card b{display:block;font-weight:900;font-size:clamp(13px,1.18vw,17px);line-height:1.09;margin:0 0 5px}.hc28-service-card small{display:block;color:#e2f0f7;font-size:clamp(9px,.76vw,12px);line-height:1.2;font-weight:500}.hc28-service-list{display:none}
/* Trust section */
.hc28-why{margin:3px 9px 7px;border:1px solid #1b8199;border-radius:10px;min-height:100px;background:linear-gradient(115deg,#032132,#05354a 57%,#042436);display:grid;grid-template-columns:1.3fr repeat(6,1fr);align-items:stretch;box-shadow:inset 0 1px #4bdefc22}.hc28-why h2{margin:auto 0 auto 14px;font-size:clamp(22px,2.05vw,30px);line-height:.99;font-weight:950;font-style:italic;letter-spacing:-.9px}.hc28-why h2 span{color:#07e3fd}.hc28-why h2 em{color:#04dff8}.hc28-why-item{padding:9px 6px;text-align:center;min-width:0;display:flex;align-items:center;flex-direction:column;justify-content:flex-start;position:relative}.hc28-why-item:not(:last-child):after{content:"";position:absolute;right:0;top:16%;height:72%;border-right:1px solid #0a85a0}.hc28-why-item svg{font-size:25px;color:#42efff;margin-bottom:4px}.hc28-why-item b{font-size:clamp(11px,.99vw,14px);line-height:1.08}.hc28-why-item small{display:block;font-size:clamp(9px,.67vw,11px);color:#b4d0dd;line-height:1.15;margin-top:4px}
/* Bottom bands */
.hc28-lower-bands{padding:0 9px 11px;display:grid;grid-template-columns:1fr 1fr;gap:9px}.hc28-lower-band{height:70px;border:1px solid #16849e;border-radius:9px;display:flex;align-items:center;gap:11px;padding:10px 17px;overflow:hidden;position:relative;background:linear-gradient(100deg,#05273c,#03506c 73%,#073b59)}.hc28-lower-band>svg{font-size:32px;color:#05e3fc;flex:0 0 auto;z-index:1}.hc28-lower-band>div{z-index:1}.hc28-lower-band h2{font-size:clamp(15px,1.56vw,22px);font-style:italic;font-weight:900;line-height:1.1;margin:0 0 7px}.hc28-lower-band p{font-size:clamp(10px,.9vw,13px);margin:0}.hc28-lower-band p b{color:#03daf3;margin:0 4px}.hc28-band-art{position:absolute;right:20px;top:-30px;font-size:125px;line-height:1;color:#49d0ed22}
/* Lower, search-friendly professional content */
.hc28-details,.hc28-faq,.hc28-cta{max-width:1460px;width:calc(100% - 46px);margin:40px auto}.hc28-section-head>span,.hc28-cta>div>span{font-weight:900;letter-spacing:2.5px;color:#13d6f5;font-size:11px}.hc28-section-head h2{font-size:clamp(28px,3.1vw,43px);letter-spacing:-1px;line-height:1.07;margin:8px 0 12px;max-width:860px}.hc28-section-head h2 em{color:#18dcef;font-style:normal}.hc28-section-head>p{max-width:780px;color:#b6d0de;font-size:16px;margin:0 0 24px}.hc28-detail-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.hc28-detail-grid article{background:linear-gradient(160deg,#082a3e,#041e2d);border:1px solid #135874;border-radius:12px;padding:26px}.hc28-detail-grid article>span{color:#13d5f4;letter-spacing:1.4px;font-size:11px;font-weight:900}.hc28-detail-grid h3{font-size:21px;line-height:1.15;margin:10px 0 8px}.hc28-detail-grid p{color:#c6dae5;margin:0;line-height:1.55;font-size:14px}.hc28-detail-grid article:target{border-color:#11ddf6;box-shadow:0 0 0 2px #0ce5ff33}.hc28-faq{max-width:1000px}.hc28-faq details{border-bottom:1px solid #18526a;padding:0 5px}.hc28-faq summary{list-style:none;cursor:pointer;padding:18px 18px 18px 0;font-size:17px;font-weight:800;position:relative}.hc28-faq summary:after{content:'+';color:var(--hc28-cyan);position:absolute;right:0;font-size:22px;top:13px}.hc28-faq details[open] summary:after{content:'−'}.hc28-faq summary::-webkit-details-marker{display:none}.hc28-faq details p{margin:0 0 18px;max-width:900px;color:#c4dbe6}.hc28-cta{display:flex;align-items:center;justify-content:space-between;gap:20px;border:1px solid #1388a0;background:linear-gradient(110deg,#053049,#07243a);padding:28px;border-radius:14px}.hc28-cta h2{font-size:36px;margin:7px 0}.hc28-cta p{max-width:700px;color:#bcd8e4;margin:0}.hc28-cta>div:last-child{display:flex;gap:10px;flex-shrink:0}
.hc28-footer{background:#02101b;border-top:1px solid #17526c;margin-top:48px;padding:28px max(24px,calc((100% - 1400px)/2));color:#b6d1df}.hc28-footer-inner{display:grid;grid-template-columns:1.7fr 1fr 1.5fr 1fr;gap:24px}.hc28-footer-inner strong{display:block;color:#fff;font-size:15px;margin-bottom:12px}.hc28-footer-inner strong em{color:var(--hc28-cyan)}.hc28-footer-inner a{display:block;margin:7px 0}.hc28-footer-inner a:hover{color:var(--hc28-cyan)}.hc28-footer-inner p{font-size:13px;line-height:1.6;margin:0}.hc28-copyright{border-top:1px solid #15425a;margin-top:22px;padding-top:14px;display:flex;justify-content:space-between;font-size:12px}.hc28-mobile-dock{display:none}
@media(max-width:1200px) and (min-width:921px){.hc28-nav{gap:7px}.hc28-nav a{font-size:10px}.hc28-logo-word strong{font-size:22px}.hc28-logo-word small{font-size:8px}.hc28-head-phone small{font-size:8px}.hc28-head-phone span{font-size:10px}.hc28-feature-row{width:67%;max-width:610px}.hc28-hero-actions{width:64%}.hc28-brand-name{letter-spacing:-.7px}.hc28-service-card{padding:9px 6px;gap:5px}.hc28-service-card>svg{width:31px;height:31px;flex-basis:31px;padding:5px}}
@media(max-width:1050px) and (min-width:921px){.hc28-head-phone small{display:none}.hc28-nav a{font-size:9px}.hc28-hero h1{font-size:34px}.hc28-feature-row{width:75%}.hc28-service-card small{font-size:9px}.hc28-service-card b{font-size:12px}.hc28-why-item small{display:none}.hc28-brand-head{font-size:12px;min-width:75px}.hc28-brand-name{font-size:15px}.hc28-hero-lead{font-size:12px}.hc28-hero{height:385px}}
/* One-column mobile matching supplied reference */
@media(max-width:920px){
 body.hc28-body{background:radial-gradient(ellipse at 50% 10%,#08344c,#031624 65%)}.hc28-header{height:63px;position:relative}.hc28-header-inner{padding:0 15px;min-height:63px}.hc28-logo-symbol{width:34px!important;height:39px!important;flex-basis:34px}.hc28-logo-word strong{font-size:22px}.hc28-logo-word small{font-size:8px;letter-spacing:2.5px}.hc28-nav,.hc28-head-phone{display:none}.hc28-mobile-phone{display:flex;align-items:center;justify-content:center;height:34px;width:37px;border:1px solid #00d5ed;border-radius:6px;color:#fff;font-size:19px}.hc28-menu-toggle{height:36px;width:36px;background:none;border:0;display:flex;flex-direction:column;gap:5px;justify-content:center;align-items:center;cursor:pointer}.hc28-menu-toggle span{height:2px;width:22px;background:#fff;border-radius:2px}.hc28-mobile-nav:not([hidden]){display:flex;position:absolute;left:0;right:0;top:62px;background:#061e2e;border-bottom:2px solid #00d5ed;padding:12px 18px;flex-direction:column;gap:0;box-shadow:0 15px 24px #0008;max-height:calc(100dvh - 62px);overflow-y:auto}.hc28-mobile-nav a{padding:11px 8px;border-bottom:1px solid #1a465e;font-weight:800}.hc28-mobile-nav a[aria-current=page]{color:var(--hc28-cyan)}
 .hc28-frame{width:calc(100% - 16px);margin:7px auto 0;border-radius:17px}.hc28-hero{height:auto;background:linear-gradient(130deg,#071c2c,#06374a 80%)}.hc28-hero-art{display:none}.hc28-hero:after{background:radial-gradient(ellipse at top right,#1254756a,transparent 58%)}.hc28-hero-copy{height:auto;padding:13px 15px 11px;max-width:none}.hc28-crumb{font-size:10px;margin-bottom:10px;gap:7px}.hc28-hero h1{font-size:clamp(26px,6.8vw,45px);line-height:1.06;letter-spacing:-.9px;max-width:680px}.hc28-hero-lead{margin:8px 0 6px;font-size:13px;line-height:1.23;max-width:none}.hc28-feature-row{display:none}.hc28-mobile-hero-art{display:block;position:relative;height:clamp(130px,41vw,240px);margin:0 9px 7px;border-radius:6px;z-index:1;background:linear-gradient(0deg,#032c43c9,transparent 48%),url('../img/hdc28-hero.webp') center 44%/cover no-repeat;border:1px solid #157a9f}.hc28-hero-actions{order:3;width:100%;max-width:none;gap:8px;margin-top:6px}.hc28-hero-actions .hc28-btn{width:50%;height:38px;padding:0 10px;font-size:14px}.hc28-btn{font-size:13px}.hc28-brands{height:auto;min-height:55px;margin:0 8px 8px;padding:7px 9px;gap:7px;display:flex;flex-wrap:wrap;justify-content:center}.hc28-brand-head,.hc28-brand-sep{display:none}.hc28-brand-name{font-size:clamp(12px,3.8vw,18px);letter-spacing:-.4px}.hc28-tp small,.hc28-ubi small{font-size:10px}.hc28-hik{font-size:clamp(11px,3.1vw,16px)}
 .hc28-services{padding:0 8px}.hc28-service-grid{display:none}.hc28-service-list{display:flex;flex-direction:column;gap:4px}.hc28-service-list a{height:32px;padding:0 10px;border:1px solid #126a88;border-radius:5px;background:linear-gradient(110deg,#04293d,#062031 75%);display:flex;align-items:center;gap:9px;font-size:13px;line-height:1.1;font-weight:900;transition:background .2s}.hc28-service-list a:hover{background:#075475}.hc28-service-list a svg{width:18px;height:18px;color:#e8faff;flex-shrink:0}.hc28-service-list a span{flex:1}.hc28-service-list a>b{font-size:23px;line-height:1;color:#0bdef8}
 .hc28-why{margin:8px 8px 7px;padding:6px 5px;min-height:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:4px 0}.hc28-why h2{grid-column:1 / -1;font-size:23px;margin:0 4px 4px;line-height:1}.hc28-why h2 br{display:none}.hc28-why-item{padding:5px 2px}.hc28-why-item:not(:last-child):after{top:15%;height:70%}.hc28-why-item:nth-child(4):after{display:none}.hc28-why-item svg{font-size:22px;margin-bottom:4px}.hc28-why-item b{font-size:12px}.hc28-why-item small{display:none}
 .hc28-lower-bands{grid-template-columns:1fr;padding:0 8px 9px;gap:5px}.hc28-lower-band{height:53px;padding:6px 12px;gap:10px}.hc28-lower-band>svg{font-size:26px}.hc28-lower-band h2{font-size:14px;font-style:normal;margin:0 0 2px}.hc28-lower-band p{font-size:10px;line-height:1.2}.hc28-band-art{font-size:90px;right:6px;top:-12px}.hc28-details,.hc28-faq,.hc28-cta{width:calc(100% - 30px);margin:26px auto}.hc28-section-head h2{font-size:27px}.hc28-section-head>p{font-size:14px}.hc28-detail-grid{grid-template-columns:1fr;gap:8px}.hc28-detail-grid article{padding:19px}.hc28-detail-grid h3{font-size:19px}.hc28-faq summary{font-size:15px;padding-right:24px}.hc28-cta{display:block;padding:20px}.hc28-cta h2{font-size:27px}.hc28-cta p{font-size:14px}.hc28-cta>div:last-child{display:grid;grid-template-columns:1fr 1fr;margin-top:18px}.hc28-cta .hc28-btn{height:40px;padding:0 8px;font-size:12px;text-align:center;gap:2px}.hc28-footer{padding:28px 20px 78px}.hc28-footer-inner{grid-template-columns:1fr 1fr;gap:26px 16px}.hc28-copyright{display:block}.hc28-copyright span{display:block;margin-top:4px}.hc28-mobile-dock{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:45;box-shadow:0 -8px 30px #0008;background:#021420;padding:7px max(8px,env(safe-area-inset-left)) calc(7px + env(safe-area-inset-bottom));gap:7px}.hc28-mobile-dock a{width:50%;height:40px;display:flex;align-items:center;justify-content:center;border:1px solid #25cce9;border-radius:6px;font-weight:900}.hc28-mobile-dock a:last-child{background:#04d6ee;color:#001a26}
}
@media(max-width:360px){.hc28-hero h1{font-size:25px}.hc28-hero-lead{font-size:12px}.hc28-service-list a{font-size:12px}.hc28-brand-name{font-size:12px}.hc28-tp small,.hc28-ubi small{font-size:9px}.hc28-why-item b{font-size:11px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.hc28-btn,.hc28-service-card{transition:none}}

/* Deep links without generating new main-branch pages */
.hc28-crosslinks{max-width:1460px;width:calc(100% - 46px);margin:10px auto 35px;display:flex;align-items:center;gap:9px;flex-wrap:wrap}.hc28-crosslinks strong{margin-right:12px;font-size:13px;color:#c0d7e3}.hc28-crosslinks a{display:inline-flex;align-items:center;gap:12px;border:1px solid #186582;border-radius:6px;background:#052638;padding:9px 12px;font-weight:800;font-size:13px}.hc28-crosslinks a:hover{border-color:#19dcf5}.hc28-crosslinks a span{color:#19dcf5}@media(max-width:920px){.hc28-crosslinks{width:calc(100% - 30px);margin:0 auto 22px}.hc28-crosslinks strong{width:100%}.hc28-crosslinks a{font-size:12px}}