/* BACKLIGHT product page: page-scoped commercial presentation. */
.backlight-product-page,.backlight-product-page *{box-sizing:border-box}
.backlight-product-page{overflow:hidden;background:#071822;color:#eaf6fb}
.backlight-product-page .container{width:min(1180px,calc(100% - 40px));margin:0 auto}
.backlight-product-page a{color:inherit}
.backlight-product-page__hero{position:relative;padding:46px 0 42px;overflow:hidden;background:radial-gradient(circle at 74% 12%,rgba(63,153,206,.28),transparent 35%),radial-gradient(circle at 20% 100%,rgba(34,115,156,.25),transparent 43%),linear-gradient(135deg,#123a50 0%,#0b2a3b 45%,#071b27 100%)}
.backlight-product-page__hero:before{position:absolute;inset:0;content:"";background:linear-gradient(90deg,rgba(4,18,29,.05),rgba(4,18,29,.32));pointer-events:none}
.backlight-product-page__hero .container{position:relative}
.backlight-product-page__hero-card{display:grid;grid-template-columns:minmax(0,.93fr) minmax(430px,1.07fr);gap:46px;align-items:center}
.backlight-product-page__eyebrow{display:flex;align-items:center;gap:9px;margin:0 0 12px;color:#b7ef4b;font-size:13px;font-weight:800;letter-spacing:.13em;text-transform:uppercase}
.backlight-product-page__eyebrow:before{width:25px;height:1px;content:"";background:#b7ef4b}
.backlight-product-page h1{max-width:590px;margin:0;color:#f8fcff;font-size:clamp(38px,4vw,56px);line-height:1.07;letter-spacing:-.025em}
.backlight-product-page__lead{max-width:560px;margin:19px 0 0;color:#c2d7e2;font-size:18px;line-height:1.55}
.backlight-product-page__price{margin:21px 0 0;color:#c2f463;font-size:31px;font-weight:850;letter-spacing:-.015em}
.backlight-product-page__price small{display:block;margin-top:4px;color:#b8ccda;font-size:14px;font-weight:600;letter-spacing:0}
.backlight-product-page__actions{display:flex;flex-wrap:nowrap;gap:12px;margin-top:24px}
.backlight-product-page__button{display:inline-flex;min-height:48px;align-items:center;justify-content:center;padding:0 21px;border:1px solid rgba(102,216,255,.75);border-radius:11px;background:rgba(6,27,40,.3);color:#f2fbff;font-size:15px;font-weight:800;line-height:1;text-decoration:none;white-space:nowrap;transition:transform .2s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease}
.backlight-product-page__button:hover,.backlight-product-page__button:focus-visible{border-color:#d8ff8c;background:rgba(15,55,73,.82);box-shadow:0 10px 24px rgba(2,14,24,.28);outline:0;transform:translateY(-2px)}
.backlight-product-page__button--primary{border-color:#c6ef69;background:#b8eb57;color:#071018!important;box-shadow:0 8px 20px rgba(149,223,53,.22)}
.backlight-product-page__button--primary:hover,.backlight-product-page__button--primary:focus-visible{background:#d2fa78;color:#03090d!important}
.backlight-product-page__hero-benefits{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:9px;margin:26px 0 0;padding:0;list-style:none}
.backlight-product-page__hero-benefits li{position:relative;min-width:0;min-height:62px;padding:11px 10px 10px 36px;border:1px solid rgba(132,220,255,.28);border-radius:12px;background:rgba(6,27,40,.33)}
.backlight-product-page__hero-benefits li:before{position:absolute;top:14px;left:12px;width:15px;height:15px;content:"✓";color:#c6f26b;font-size:14px;font-weight:900}
.backlight-product-page__hero-benefits b{display:block;color:#f2f9fd;font-size:13px;line-height:1.32}
.backlight-product-page__hero-aside{display:grid;gap:14px}
.backlight-product-page__visual{padding:10px;border:1px solid rgba(138,220,255,.38);border-radius:18px;background:linear-gradient(135deg,rgba(12,48,66,.86),rgba(4,21,31,.86));box-shadow:inset 0 1px rgba(255,255,255,.08),0 18px 40px rgba(1,10,17,.18)}
.backlight-product-page__visual img{display:block;width:100%;aspect-ratio:3/2;object-fit:contain;border-radius:11px}
.backlight-product-page__calculator{padding:20px 21px;border:1px solid rgba(147,224,255,.38);border-radius:17px;background:rgba(3,18,29,.79);box-shadow:inset 0 1px rgba(255,255,255,.05)}
.backlight-product-page__calculator h2{margin:0;color:#f8fcff;font-size:23px;line-height:1.2}
.backlight-product-page__calculator-lead{margin:7px 0 15px;color:#adc5d2;font-size:14px;line-height:1.45}
.backlight-product-page__fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}
.backlight-product-page__fields label{display:grid;gap:7px;min-width:0;color:#dceaf1;font-size:14px;font-weight:750}
.backlight-product-page__fields select,.backlight-product-page__fields input,.backlight-product-page__quantity button{height:46px;min-height:46px;border:1px solid #3d7d98;border-radius:10px;background:#071b28;color:#f5fbff;font:inherit;outline:0}
.backlight-product-page__fields select,.backlight-product-page__fields input{width:100%;padding:0 12px}
.backlight-product-page__fields select:focus,.backlight-product-page__fields input:focus,.backlight-product-page__quantity button:focus-visible{border-color:#c0ee64;box-shadow:0 0 0 3px rgba(184,235,87,.14)}
.backlight-product-page__quantity{display:grid;grid-template-columns:46px minmax(72px,1fr) 46px;gap:7px}
.backlight-product-page__quantity button{padding:0;color:#dff4fb;font-size:21px;font-weight:850;cursor:pointer}
.backlight-product-page__quantity button:hover{border-color:#c0ee64;background:#103343}
.backlight-product-page__result{margin:13px 0 0;padding:11px 14px;border:1px solid rgba(193,238,100,.38);border-radius:11px;background:rgba(12,42,51,.62)}
.backlight-product-page__result-label{display:block;color:#b9d0da;font-size:13px}.backlight-product-page__result strong{display:block;margin-top:3px;color:#fff;font-size:23px;line-height:1.2}
.backlight-product-page__validation{min-height:0;margin:7px 0 0;color:#ffbf9c;font-size:13px}.backlight-product-page__disclaimer{margin:10px 0 0;color:#9db6c2;font-size:12px;line-height:1.45}
.backlight-product-page__section{padding:56px 0;background:#071822}.backlight-product-page__section--portfolio{padding-top:42px;padding-bottom:54px}.backlight-product-page__section--surface{background:linear-gradient(135deg,#0d3144,#071b27)}
.backlight-product-page__section-heading{max-width:800px;margin:0 auto 25px;text-align:center}.backlight-product-page h2{margin:0;color:#f7fbff;font-size:clamp(27px,3vw,41px);line-height:1.13}.backlight-product-page__calculator h2{font-size:23px;line-height:1.2}.backlight-product-page__section-heading p{margin:10px 0 0;color:#b3cbd7;font-size:17px;line-height:1.5}
.backlight-product-page__carousel{position:relative}.backlight-product-page__carousel-track{display:grid;grid-auto-flow:column;grid-auto-columns:calc((100% - 54px)/4);gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;scroll-behavior:smooth;scrollbar-width:none;padding:3px 2px 13px}.backlight-product-page__carousel-track::-webkit-scrollbar{display:none}
.backlight-product-page__portfolio-item{overflow:hidden;scroll-snap-align:start;border:1px solid rgba(105,211,255,.32);border-radius:15px;background:#0a2330;transition:transform .2s ease,border-color .2s ease}.backlight-product-page__portfolio-item:hover{border-color:#c1ee66;transform:translateY(-3px)}.backlight-product-page__portfolio-item{color:inherit;text-decoration:none}.backlight-product-page__portfolio-item img{display:block;width:100%;aspect-ratio:4/3;object-fit:cover}.backlight-product-page__portfolio-item div{padding:13px 14px 15px}.backlight-product-page__portfolio-item h3{margin:0;color:#f5fbff;font-size:17px;line-height:1.25}.backlight-product-page__portfolio-item p{margin:6px 0 0;color:#aec5d0;font-size:14px;line-height:1.4}
.backlight-product-page__carousel-control{position:absolute;z-index:2;top:calc(50% - 28px);display:grid;width:46px;height:46px;place-items:center;border:1px solid #67d3ff;border-radius:50%;background:#09222f;color:#f7fdff;font-size:26px;line-height:1;cursor:pointer}.backlight-product-page__carousel-control--prev{left:-23px}.backlight-product-page__carousel-control--next{right:-23px}.backlight-product-page__carousel-dots{display:flex;justify-content:center;gap:8px;margin-top:1px}.backlight-product-page__carousel-dots button{width:9px;height:9px;padding:0;border:0;border-radius:50%;background:#416b7d;cursor:pointer}.backlight-product-page__carousel-dots button.is-active{width:25px;border-radius:99px;background:#c2ef69}.backlight-product-page__link-row{margin:17px 0 0;text-align:center}
.backlight-product-page__construction{display:grid;grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);gap:46px;align-items:center}.backlight-product-page__construction-media{padding:20px;border:1px solid rgba(118,215,255,.38);border-radius:20px;background:radial-gradient(circle at 52% 44%,rgba(112,215,255,.2),transparent 42%),linear-gradient(145deg,#0b2b3c,#061923);box-shadow:inset 0 1px rgba(255,255,255,.08)}.backlight-product-page__construction-scheme{display:block;width:100%;height:auto}.backlight-product-page__scheme-label{font:700 16px Arial,sans-serif;fill:#f0fbff}.backlight-product-page__scheme-line{stroke:#c5ef69;stroke-width:2;fill:none}.backlight-product-page__construction-copy p{margin:14px 0 0;color:#c1d3dc;font-size:17px;line-height:1.58}.backlight-product-page__specs{display:grid;gap:9px;margin:19px 0 0;padding:0;list-style:none}.backlight-product-page__specs li{padding:12px 14px;border-left:2px solid #c3ef69;border-radius:0 10px 10px 0;background:rgba(3,18,27,.42);color:#d8e7ed;font-size:15px;line-height:1.48}.backlight-product-page__specs b{color:#fff}
.backlight-product-page__benefits{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px}.backlight-product-page__benefit{min-height:215px;padding:23px;border:1px solid rgba(101,213,255,.28);border-radius:17px;background:linear-gradient(145deg,#0b2a3b,#071b27)}.backlight-product-page__benefit:before{display:grid;width:42px;height:42px;place-items:center;border:1px solid rgba(195,239,105,.68);border-radius:12px;color:#c5ef69;font-size:22px}.backlight-product-page__benefit--light:before{content:"✦"}.backlight-product-page__benefit--price:before{content:"₽"}.backlight-product-page__benefit--universal:before{content:"⌁"}.backlight-product-page__benefit h3{margin:16px 0 0;color:#f6fbff;font-size:20px;line-height:1.2}.backlight-product-page__benefit p{margin:10px 0 0;color:#b5cbd5;font-size:15px;line-height:1.55}
.backlight-product-page__section--seo{padding-top:58px;padding-bottom:70px;background:linear-gradient(180deg,#071822,#092333)}.backlight-product-page__seo{max-width:1050px}.backlight-product-page__seo-guide{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:0 0 26px}.backlight-product-page__seo-guide div{padding:17px 18px;border:1px solid rgba(102,214,255,.28);border-radius:14px;background:rgba(4,25,37,.65)}.backlight-product-page__seo-guide b{display:block;color:#c6ef69;font-size:14px}.backlight-product-page__seo-guide span{display:block;margin-top:6px;color:#c0d2db;font-size:14px;line-height:1.45}.backlight-product-page__seo-content{display:flow-root;color:#c2d2da;font-size:17px;line-height:1.68}.backlight-product-page__seo-content p{margin:0 0 20px}.backlight-product-page__seo-content p:first-child{display:none}.backlight-product-page__seo-content strong{color:#f6fbff}.backlight-product-page__seo-content a{color:#bff26b;text-decoration-color:rgba(191,242,107,.55)}.backlight-product-page__seo-content img{display:block;max-width:100%;height:auto;margin:24px auto;border:1px solid rgba(101,213,255,.28);border-radius:15px;box-shadow:0 12px 28px rgba(0,0,0,.18)}.backlight-product-page__seo-content .img_content{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}.backlight-product-page__seo-content .double-img{max-width:230px;margin:0}.backlight-product-page__seo-content iframe{display:block;max-width:100%;margin:0 auto;border:1px solid rgba(101,213,255,.3);border-radius:15px}.backlight-product-page__seo-content hr{margin:34px 0;border:0;border-top:1px solid rgba(103,212,255,.3)}
@media(max-width:1050px){.backlight-product-page__hero-card{grid-template-columns:1fr;gap:30px}.backlight-product-page__hero-benefits{grid-template-columns:repeat(2,minmax(0,1fr))}.backlight-product-page__carousel-track{grid-auto-columns:calc((100% - 36px)/3)}.backlight-product-page__construction{grid-template-columns:1fr}.backlight-product-page__benefits{grid-template-columns:1fr}.backlight-product-page__seo-guide{grid-template-columns:1fr}}
@media(max-width:760px){.backlight-product-page .container{width:min(100% - 32px,1180px)}.backlight-product-page__hero{padding:34px 0 36px}.backlight-product-page__actions{flex-wrap:wrap}.backlight-product-page__section{padding:46px 0}.backlight-product-page__section--portfolio{padding-top:35px}.backlight-product-page__carousel-track{grid-auto-columns:calc((100% - 18px)/2)}.backlight-product-page__carousel-control{display:none}.backlight-product-page__construction{gap:28px}.backlight-product-page__construction-media{padding:14px}.backlight-product-page__section--seo{padding-bottom:54px}.backlight-product-page__seo-content{font-size:16px}}
@media(max-width:520px){.backlight-product-page h1{font-size:37px}.backlight-product-page__lead{font-size:16px}.backlight-product-page__actions,.backlight-product-page__actions .backlight-product-page__button{width:100%}.backlight-product-page__hero-benefits{grid-template-columns:1fr}.backlight-product-page__fields{grid-template-columns:1fr}.backlight-product-page__carousel-track{grid-auto-columns:100%}.backlight-product-page__visual{padding:7px}.backlight-product-page__calculator{padding:18px}.backlight-product-page__construction-media{padding:8px}.backlight-product-page__scheme-label{font-size:12px}}
/* BACKLIGHT hero: mirrors the compact commercial hierarchy used on Price. */
.backlight-product-page__hero{padding:34px 0 40px;background:radial-gradient(circle at 82% 12%,rgba(26,111,152,.18),transparent 38%),linear-gradient(135deg,#061923,#07111b 54%,#061c2b)}
.backlight-product-page__hero-card{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:0;align-items:stretch;overflow:hidden;border:1px solid #1a526b;border-radius:18px;background:rgba(4,20,30,.8);box-shadow:0 22px 58px rgba(0,0,0,.28)}
.backlight-product-page__hero-media{min-width:0;padding:24px 26px 26px;border-right:1px solid rgba(65,160,201,.22);background:linear-gradient(145deg,rgba(6,25,35,.75),rgba(2,10,17,.55))}
.backlight-product-page__hero-copy{display:flex;min-width:0;flex-direction:column;padding:28px 30px}
.backlight-product-page__eyebrow{margin:0 0 10px;padding:5px 12px;border:1px solid rgba(163,231,67,.72);border-radius:999px;color:#b5ed57;font-size:12px;letter-spacing:0;text-transform:none}
.backlight-product-page__eyebrow:before{display:none}
.backlight-product-page h1{max-width:none;font-size:clamp(31px,2.55vw,39px);line-height:1.12}
.backlight-product-page__lead{max-width:none;margin:11px 0 18px;font-size:16px;line-height:1.5}
.backlight-product-page__visual{padding:0;border:1px solid #17617f;border-radius:13px;background:#040b10;box-shadow:none}
.backlight-product-page__visual img{min-height:300px;aspect-ratio:3/2;border-radius:12px;object-fit:contain}
.backlight-product-page__hero-benefits{grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin:12px 0 0}
.backlight-product-page__hero-benefits span{display:grid;min-height:66px;place-items:center;padding:8px 6px;border:1px solid rgba(80,150,181,.32);border-radius:11px;background:rgba(8,27,38,.82);color:#d8e7ed;font-size:12px;font-weight:600;line-height:1.28;text-align:center}
.backlight-product-page__hero-benefits svg{display:block;width:21px;height:21px;margin:0 auto 4px;fill:none;stroke:#a8ea42;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.backlight-product-page__calculator{margin-top:0;padding:0;border:0;border-radius:0;background:none;box-shadow:none}
.backlight-product-page__calculator h2{margin:0 0 6px;color:#b5ed57;font-size:16px;line-height:1.2}
.backlight-product-page__result{display:flex;flex-direction:column;gap:3px;margin:0 0 18px;padding:14px 16px;border:1px solid rgba(168,234,66,.57);border-radius:12px;background:linear-gradient(135deg,rgba(15,50,54,.72),rgba(8,25,35,.92));box-shadow:inset 0 0 30px rgba(118,210,68,.04)}
.backlight-product-page__result strong{order:0;margin:0;color:#f9fbfc;font-size:clamp(30px,3vw,42px);line-height:1.08}
.backlight-product-page__result-label{order:1;color:#b9cad3;font-size:13px;line-height:1.35}
.backlight-product-page__fields{gap:14px}
.backlight-product-page__fields label{gap:6px;font-size:14px}
.backlight-product-page__fields select,.backlight-product-page__fields input,.backlight-product-page__quantity button{height:44px;min-height:44px;border-color:#365e70;border-radius:9px;background:#0a1b25}
.backlight-product-page__quantity{grid-template-columns:44px minmax(72px,1fr) 44px;gap:6px}
.backlight-product-page__actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:14px 0 0}
.backlight-product-page__button{min-height:46px;padding:8px 16px;border-color:#8cd43e;border-radius:9px}
.backlight-product-page__button--primary{background:#a8ea42;color:#07131a!important}
.backlight-product-page__validation{min-height:0;margin:5px 0 0}
.backlight-product-page__disclaimer{margin-top:10px}
@media(max-width:980px){.backlight-product-page__hero-card{grid-template-columns:1fr}.backlight-product-page__hero-media{padding:22px;border-right:0;border-bottom:1px solid rgba(65,160,201,.22)}.backlight-product-page__hero-copy{padding:24px}.backlight-product-page__visual img{min-height:270px}}
@media(max-width:700px){.backlight-product-page__hero{padding:24px 0 34px}.backlight-product-page__hero-media{padding:18px}.backlight-product-page__hero-copy{padding:22px 18px}.backlight-product-page__visual img{min-height:225px}.backlight-product-page__hero-benefits{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.backlight-product-page__hero-benefits span{min-height:62px}}
@media(max-width:520px){.backlight-product-page h1{font-size:29px}.backlight-product-page__fields,.backlight-product-page__actions{grid-template-columns:1fr}.backlight-product-page__hero-benefits{margin-top:10px}}
/* BACKLIGHT stage 2: dense lower-page layout and structured existing content. */
.backlight-product-page .container{padding-top:0;padding-right:0;padding-bottom:0;padding-left:0}
.backlight-product-page .container:before,.backlight-product-page .container:after{display:none!important;content:none!important}
.backlight-product-page__hero{height:auto;min-height:0;padding:30px 0 38px}
.backlight-product-page__hero-card{height:auto;min-height:0;align-items:start}
.backlight-product-page__hero-media,.backlight-product-page__hero-copy{align-self:start;height:auto;min-height:0}
.backlight-product-page__uses{margin-top:12px;padding:12px 14px;border:1px solid rgba(80,150,181,.28);border-radius:11px;background:rgba(8,27,38,.72)}
.backlight-product-page__uses b{display:block;margin-bottom:8px;color:#dcebf1;font-size:12px;line-height:1.2}
.backlight-product-page__uses div{display:flex;flex-wrap:wrap;gap:7px}
.backlight-product-page__uses span{padding:5px 9px;border:1px solid rgba(168,234,66,.42);border-radius:999px;color:#bfced5;font-size:11px;line-height:1.2}
.backlight-product-page__section{padding:54px 0}
.backlight-product-page__section--portfolio{padding:50px 0 58px}
.backlight-product-page__section-heading{margin-bottom:24px}
.backlight-product-page__carousel-track{grid-auto-columns:calc((100% - 54px)/4);gap:18px;padding:3px 2px 12px}
.backlight-product-page__carousel-control{top:calc(50% - 29px)}
.backlight-product-page__link-row{margin-top:15px}
.backlight-product-page__section--surface{padding:58px 0;background:#081c28}
.backlight-product-page__construction{grid-template-areas:"copy media";grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:40px;align-items:start;padding:30px;border:1px solid rgba(76,167,203,.34);border-radius:20px;background:linear-gradient(135deg,#0b2a3b,#071923);box-shadow:0 18px 42px rgba(0,0,0,.18)}
.backlight-product-page__construction-copy{grid-area:copy;align-self:start;padding:4px 0}
.backlight-product-page__construction-media{grid-area:media;align-self:start;padding:14px;border-radius:16px;background:radial-gradient(circle at 52% 44%,rgba(112,215,255,.16),transparent 45%),#061722}
.backlight-product-page__construction-copy p{font-size:16px;line-height:1.55}
.backlight-product-page__specs{margin-top:17px}
.backlight-product-page__specs li{padding:11px 13px}
.backlight-product-page__scheme-grid{fill:none;stroke:rgba(100,196,230,.09);stroke-width:1}
.backlight-product-page__scheme-title{font:700 17px Arial,sans-serif;fill:#dff7ff}
.backlight-product-page__scheme-letter{font:900 260px Arial,sans-serif;paint-order:stroke fill;stroke-width:4}
.backlight-product-page__scheme-letter--back{fill:url(#backlight-back);stroke:#6a9aaf}
.backlight-product-page__scheme-letter--side{fill:url(#backlight-side);stroke:#4cbbe8}
.backlight-product-page__scheme-letter--face{fill:url(#backlight-face);stroke:#e9fbff;filter:url(#backlight-glow)}
.backlight-product-page__scheme-leds circle{fill:#c6ef69}
.backlight-product-page__scheme-label{font:700 14px Arial,sans-serif;fill:#dcecf3}
.backlight-product-page__scheme-line{stroke:#69d5ff;stroke-width:1.7;fill:none}
.backlight-product-page__scheme-light{stroke:#c6ef69;stroke-width:2;fill:none;marker-end:none}
.backlight-product-page__benefits{gap:16px}
.backlight-product-page__benefit{min-height:190px}
.backlight-product-page__section--seo{padding:58px 0 68px;background:linear-gradient(180deg,#071822,#081f2c)}
.backlight-product-page__seo{max-width:1180px}
.backlight-product-page__seo-guide{margin-bottom:32px}
.backlight-product-page__seo-content{font-size:16px;line-height:1.62}
.backlight-product-page__seo-content>p:first-child{display:block}
.backlight-content-flow{display:grid;gap:28px}
.backlight-content-flow h3{margin:0 0 12px;color:#f4f9fb;font-size:clamp(22px,2.1vw,29px);line-height:1.2}
.backlight-content-flow p{margin:0 0 14px}
.backlight-content-flow p:last-child{margin-bottom:0}
.backlight-content-kicker{display:block;margin-bottom:8px;color:#b7ef4b;font-size:12px;font-weight:800;letter-spacing:.09em;text-transform:uppercase}
.backlight-content-split,.backlight-content-media-row,.backlight-content-options,.backlight-content-case{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:30px;align-items:center;padding:26px;border:1px solid rgba(80,161,194,.28);border-radius:18px;background:#0a2330}
.backlight-content-split--info{background:#091f2b}
.backlight-content-showcase{display:grid;grid-template-columns:1fr;gap:9px;align-self:stretch;padding:10px;border:1px solid #829da9;border-radius:14px;background:linear-gradient(145deg,#d9e4e9,#bdcfd7)}
.backlight-content-showcase figure{position:relative;overflow:hidden;margin:0;border-radius:10px;background:#0b1820}
.backlight-content-showcase img{display:block;width:100%;height:100%;margin:0!important;border:0!important;border-radius:0!important;object-fit:cover;box-shadow:none!important}
.backlight-content-showcase figcaption{position:absolute;right:0;bottom:0;left:0;padding:18px 10px 8px;background:linear-gradient(transparent,rgba(4,13,18,.88));color:#f4f9fb;font-size:11px;font-weight:700;line-height:1.25}
.backlight-content-showcase__feature{aspect-ratio:16/9}
.backlight-content-showcase__grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:9px}
.backlight-content-showcase__grid figure{aspect-ratio:4/3}
.backlight-product-page__seo-content .backlight-content-media-row>img,.backlight-product-page__seo-content .backlight-content-split>img,.backlight-product-page__seo-content .backlight-content-case>img{display:block;width:100%;height:auto;margin:0;border:0;border-radius:13px;box-shadow:none}
.backlight-content-media-row{grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr);background:#081f2c}
.backlight-product-page__seo-content .backlight-content-banner{display:block;width:100%;height:auto;margin:16px 0 0;border:0;border-radius:10px;box-shadow:none}
.backlight-content-options{grid-template-columns:minmax(0,1.35fr) minmax(260px,.65fr);background:linear-gradient(135deg,#0b2938,#081d29)}
.backlight-content-option-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.backlight-content-option-links>div{display:flex;min-height:116px;flex-direction:column;align-items:center;justify-content:center;padding:13px;border:1px solid rgba(168,234,66,.34);border-radius:13px;background:#071923;text-align:center}
.backlight-product-page__seo-content .backlight-content-option-links img{width:100px;height:68px;margin:0 0 8px;border:0;border-radius:7px;object-fit:cover;box-shadow:none}
.backlight-content-option-links span{color:#e6f3f7;font-size:13px;font-weight:700}
.backlight-content-callout{padding:24px 28px;border:1px solid rgba(168,234,66,.42);border-left:4px solid #a8ea42;border-radius:14px;background:linear-gradient(90deg,rgba(21,55,51,.86),rgba(8,29,39,.95))}
.backlight-content-callout h3{font-size:24px}
.backlight-content-case{grid-template-columns:minmax(0,.75fr) minmax(0,1.25fr);background:#071b27}
.backlight-content-case-copy{padding:4px}
@media(max-width:1050px){.backlight-product-page__construction{grid-template-areas:"copy" "media";grid-template-columns:1fr;gap:26px}.backlight-product-page__carousel-track{grid-auto-columns:calc((100% - 36px)/3)}.backlight-content-split,.backlight-content-media-row,.backlight-content-options,.backlight-content-case{grid-template-columns:1fr}.backlight-content-option-links{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){.backlight-product-page .container{width:min(100% - 32px,1180px)}.backlight-product-page__hero{padding:20px 0 34px}.backlight-product-page__section,.backlight-product-page__section--portfolio,.backlight-product-page__section--surface,.backlight-product-page__section--seo{padding:44px 0}.backlight-product-page__carousel-track{grid-auto-columns:calc((100% - 18px)/2)}.backlight-product-page__construction{padding:22px}.backlight-content-flow{gap:20px}.backlight-content-split,.backlight-content-media-row,.backlight-content-options,.backlight-content-case{gap:22px;padding:21px}.backlight-content-callout{padding:21px}}
@media(max-width:520px){.backlight-product-page__hero{padding-top:14px}.backlight-product-page__uses div{gap:6px}.backlight-product-page__carousel-track{grid-auto-columns:100%}.backlight-product-page__construction{padding:17px}.backlight-product-page__construction-media{padding:7px}.backlight-product-page__scheme-label{font-size:12px}.backlight-product-page__scheme-title{font-size:15px}.backlight-content-option-links{grid-template-columns:1fr}.backlight-content-split,.backlight-content-media-row,.backlight-content-options,.backlight-content-case{padding:18px}.backlight-content-callout{padding:19px}}

/* BACKLIGHT surface hierarchy: page canvas, cards and accent sections. */
.backlight-product-page{
  --backlight-surface-page:#071822;
  background:var(--backlight-surface-page)
}
.backlight-product-page__section{background:var(--backlight-surface-page)}
.backlight-product-page__hero-benefits span{
  border-color:rgba(105,190,222,.2);
  background:#0c2a38;
  box-shadow:0 10px 24px rgba(0,0,0,.11)
}
.backlight-product-page__section--benefits{
  background:var(--backlight-surface-page)
}
.backlight-product-page__benefit{
  border-color:rgba(112,186,215,.16);
  background:#10181d;
  box-shadow:0 12px 26px rgba(0,0,0,.18),inset 0 1px rgba(255,255,255,.025)
}
.backlight-product-page__benefit--price{
  border-color:rgba(160,188,205,.2);
  background:linear-gradient(145deg,#263b4a,#1d303c);
  box-shadow:0 18px 34px rgba(0,0,0,.28),0 0 26px rgba(87,175,214,.08);
  transform:translateY(-5px)
}
.backlight-product-page__benefit--universal{
  border-color:#b7cbd4;
  background:linear-gradient(145deg,#dce8ed,#cbdde5);
  box-shadow:0 12px 28px rgba(0,0,0,.18)
}
.backlight-product-page__benefit--universal:before{border-color:#668592;color:#466675}
.backlight-product-page__benefit--universal h3{color:#172832}
.backlight-product-page__benefit--universal p{color:#465f6b}
.backlight-product-page__section--surface{background:#081c28}
.backlight-product-page__construction{
  border-color:rgba(105,193,225,.16);
  background:linear-gradient(135deg,#16485f,#103748);
  box-shadow:0 18px 42px rgba(0,0,0,.18),inset 0 1px rgba(255,255,255,.035)
}
.backlight-product-page__section--seo{
  background:linear-gradient(180deg,#071822,#081f2c)
}
.backlight-product-page__seo-guide div{
  border-color:rgba(104,181,211,.14);
  background:#10181d;
  box-shadow:0 10px 24px rgba(0,0,0,.18)
}
.backlight-product-page__seo-guide div:nth-child(2){
  border-color:rgba(163,191,207,.18);
  background:linear-gradient(145deg,#2b4050,#223542)
}
.backlight-product-page__seo-guide div:nth-child(3){
  border-color:#b5c9d2;
  background:linear-gradient(145deg,#dce7ec,#cbdce4)
}
.backlight-product-page__seo-guide div:nth-child(3) b{color:#496820}
.backlight-product-page__seo-guide div:nth-child(3) span{color:#435a65}
.backlight-content-split,
.backlight-content-media-row,
.backlight-content-options,
.backlight-content-case{
  border-color:rgba(95,181,213,.18);
  box-shadow:0 12px 28px rgba(0,0,0,.1)
}
.backlight-content-split--intro{
  gap:14px;
  padding:14px;
  border-color:rgba(121,183,207,.15);
  background:#091f2a;
  box-shadow:0 16px 38px rgba(0,0,0,.24)
}
.backlight-content-split--intro .backlight-content-copy{
  align-self:stretch;
  padding:25px 27px;
  border-radius:13px;
  background:linear-gradient(145deg,#151f25,#10181d)
}
.backlight-content-split--intro .backlight-content-showcase{
  align-self:stretch;
  padding:10px;
  border:1px solid #829da9;
  border-radius:14px;
  background:linear-gradient(145deg,#d9e4e9,#bdcfd7)
}
.backlight-content-split--intro .backlight-content-showcase__feature{min-height:0}
.backlight-content-media-row{
  border-color:rgba(103,187,218,.15);
  background:linear-gradient(145deg,#103648,#0b2633);
  box-shadow:0 11px 26px rgba(0,0,0,.2)
}
.backlight-content-case{
  border-color:#b6cbd4;
  background:linear-gradient(145deg,#dce8ed,#c8dbe3);
  box-shadow:0 12px 28px rgba(0,0,0,.2)
}
.backlight-content-case h3{color:#172832}
.backlight-content-case p{color:#435c67}
.backlight-content-case .backlight-content-kicker{color:#587728}
.backlight-content-options{
  border-color:rgba(184,204,216,.14);
  background:linear-gradient(135deg,#2d4353,#223542);
  box-shadow:0 12px 28px rgba(0,0,0,.22)
}
.backlight-content-split--info{background:linear-gradient(135deg,#151f25,#10181d)}
.backlight-content-option-links>div{
  border-color:rgba(168,234,66,.23);
  background:#0d2c3a
}
body.backlight-product-body .product-review{
  padding-top:24px;
  padding-bottom:32px;
  background:#081c28
}
body.backlight-product-body .product-review__card{
  border-color:#b8cbd4;
  background:linear-gradient(135deg,#e1ebef,#cfdee5);
  box-shadow:0 14px 34px rgba(0,0,0,.2);
  padding-top:21px;
  padding-bottom:21px
}
body.backlight-product-body .product-review__quote{top:22px}
@media(max-width:1050px){.backlight-product-page__benefit--price{transform:none}}
@media(max-width:760px){.backlight-content-showcase__feature{aspect-ratio:16/10}.backlight-content-showcase__grid{grid-template-columns:repeat(2,minmax(0,1fr))}}

/* Key facts are one structured checklist, deliberately distinct from benefit cards. */
.backlight-product-page__seo-guide{
  display:grid;
  grid-template-columns:1fr;
  gap:0;
  margin-bottom:32px;
  padding:8px 22px;
  border:1px solid #a9c0ca;
  border-radius:17px;
  background:linear-gradient(145deg,#dbe7ec,#cbdce4);
  box-shadow:0 14px 30px rgba(0,0,0,.2)
}
.backlight-product-page__seo-guide div,
.backlight-product-page__seo-guide div:nth-child(2),
.backlight-product-page__seo-guide div:nth-child(3){
  position:relative;
  display:grid;
  grid-template-columns:36px minmax(190px,.38fr) minmax(0,1fr);
  gap:14px;
  align-items:center;
  min-height:76px;
  padding:13px 4px;
  border:0;
  border-bottom:1px solid rgba(54,82,95,.22);
  border-radius:0;
  background:none;
  box-shadow:none
}
.backlight-product-page__seo-guide div:last-child{border-bottom:0}
.backlight-product-page__seo-guide div:before{
  display:grid;
  width:30px;
  height:30px;
  place-items:center;
  border:1px solid #779432;
  border-radius:50%;
  content:"✓";
  color:#58751b;
  font-size:15px;
  font-weight:900
}
.backlight-product-page__seo-guide div b,
.backlight-product-page__seo-guide div:nth-child(3) b{
  color:#1d3039;
  font-size:15px
}
.backlight-product-page__seo-guide div span,
.backlight-product-page__seo-guide div:nth-child(3) span{
  margin:0;
  color:#48606b;
  font-size:14px;
  line-height:1.45
}
@media(max-width:700px){
  .backlight-product-page__seo-guide{padding:7px 16px}
  .backlight-product-page__seo-guide div,
  .backlight-product-page__seo-guide div:nth-child(2),
  .backlight-product-page__seo-guide div:nth-child(3){
    grid-template-columns:32px minmax(0,1fr);
    gap:6px 11px;
    padding:16px 0
  }
  .backlight-product-page__seo-guide div span,
  .backlight-product-page__seo-guide div:nth-child(3) span{grid-column:2}
}

/* Semantic benefit icons replace the old decorative glyphs. */
.backlight-product-page__benefit:before{display:none;content:none}
.backlight-product-page__benefit-icon{
  display:block;
  width:48px;
  height:48px;
  padding:8px;
  border:1px solid rgba(195,239,105,.68);
  border-radius:12px;
  fill:none;
  stroke:#c5ef69;
  stroke-width:2;
  stroke-linecap:round;
  stroke-linejoin:round
}
.backlight-product-page__benefit--universal .backlight-product-page__benefit-icon{
  border-color:#668592;
  stroke:#466675
}

/* Larger, tighter checklist typography and a more efficient text grid. */
.backlight-product-page__seo-guide{
  width:min(100%,1040px);
  margin-right:auto;
  margin-bottom:32px;
  margin-left:auto;
  padding:5px 18px
}
.backlight-product-page__seo-guide div,
.backlight-product-page__seo-guide div:nth-child(2),
.backlight-product-page__seo-guide div:nth-child(3){
  grid-template-columns:38px minmax(220px,.62fr) minmax(0,1.38fr);
  gap:12px 16px;
  min-height:72px;
  padding:11px 2px
}
.backlight-product-page__seo-guide div:before{
  width:32px;
  height:32px;
  font-size:16px
}
.backlight-product-page__seo-guide div b,
.backlight-product-page__seo-guide div:nth-child(3) b{
  font-size:18px;
  line-height:1.3
}
.backlight-product-page__seo-guide div span,
.backlight-product-page__seo-guide div:nth-child(3) span{
  font-size:16px;
  line-height:1.55
}
@media(max-width:700px){
  .backlight-product-page__seo-guide{padding:4px 15px}
  .backlight-product-page__seo-guide div,
  .backlight-product-page__seo-guide div:nth-child(2),
  .backlight-product-page__seo-guide div:nth-child(3){
    grid-template-columns:34px minmax(0,1fr);
    gap:5px 11px;
    padding:15px 0
  }
  .backlight-product-page__seo-guide div b,
  .backlight-product-page__seo-guide div:nth-child(3) b{font-size:17px}
  .backlight-product-page__seo-guide div span,
  .backlight-product-page__seo-guide div:nth-child(3) span{font-size:15px}
}
/* BACKLIGHT editorial content v3 */
.backlight-product-page__seo-content .backlight-content-flow{display:grid;gap:0;margin-top:34px}
.backlight-editorial{display:grid;grid-template-columns:minmax(0,.93fr) minmax(0,1.07fr);gap:clamp(30px,5vw,68px);align-items:center;padding:clamp(42px,6vw,76px) clamp(24px,5vw,66px);border:0;border-radius:0;background:#081d29}
.backlight-editorial:nth-child(even){background:#0b2735}.backlight-editorial--light{background:#dce7eb!important}.backlight-editorial--light h3{color:#132833}.backlight-editorial--light p{color:#3c5662}.backlight-editorial--light .backlight-content-kicker{color:#587728}.backlight-editorial--night{background:linear-gradient(135deg,#07141f,#0a2840)!important}.backlight-editorial--closing{background:linear-gradient(135deg,#11272f,#1b3438)!important}
.backlight-editorial__copy h3{margin-bottom:18px;font-size:clamp(26px,3vw,38px)}.backlight-editorial__copy p{font-size:clamp(16px,1.45vw,18px);line-height:1.7}
.backlight-product-page__seo-content .backlight-editorial__media{margin:0}.backlight-product-page__seo-content .backlight-editorial__media img{display:block;width:100%;aspect-ratio:4/3;height:auto;margin:0;border:0;border-radius:18px;object-fit:cover;box-shadow:0 22px 50px rgba(0,0,0,.28)}.backlight-editorial__media figcaption{margin-top:11px;color:#9fb7c2;font-size:13px;line-height:1.45}.backlight-editorial--light .backlight-editorial__media figcaption{color:#506a75}
.backlight-editorial__facts{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}.backlight-editorial__facts span{padding:8px 11px;border:1px solid rgba(183,239,75,.36);border-radius:999px;color:#dff6b4;font-size:12px;font-weight:700}
.backlight-editorial__checklist{display:grid;gap:10px;margin:22px 0 0;padding:0;list-style:none}.backlight-editorial__checklist li{position:relative;padding-left:27px;color:#d7e7ed}.backlight-editorial__checklist li:before{position:absolute;left:0;color:#b7ef4b;font-weight:900;content:'✓'}
.backlight-editorial__cta{display:inline-flex;margin-top:22px;padding:12px 19px;border:1px solid #b7ef4b;border-radius:10px;color:#f5fbff!important;font-weight:800;text-decoration:none!important;transition:.2s ease}.backlight-editorial__cta:hover{background:#b7ef4b;color:#10212a!important;transform:translateY(-2px)}
.backlight-style-lab{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(34px,6vw,78px);padding:clamp(50px,7vw,88px) clamp(24px,5vw,66px);background:linear-gradient(145deg,#071923,#0b3042)}.backlight-style-lab__preview h3{font-size:clamp(27px,3.2vw,41px)}.backlight-style-lab__preview>p{margin-top:22px;color:#b9ccd5}
.backlight-style-lab__stage{position:relative;display:grid;min-height:360px;place-items:center;margin-top:25px;overflow:hidden;border:1px solid rgba(121,204,237,.25);border-radius:24px;background:linear-gradient(115deg,#dce5e8 0 50%,#081722 50%)}.backlight-style-lab__stage:after{position:absolute;top:0;bottom:0;left:50%;width:1px;background:rgba(255,255,255,.2);content:''}.backlight-style-lab__letter{position:relative;z-index:1;color:#171d22;font:900 clamp(170px,21vw,255px)/1 Arial,sans-serif;letter-spacing:-.09em;text-shadow:16px 7px 19px rgba(0,0,0,.18),-8px 0 24px #f5cc7a,0 0 42px #f5cc7a}.backlight-style-lab__label{position:absolute;z-index:2;padding:7px 10px;border-radius:7px;font-size:11px;font-weight:800;letter-spacing:.05em;text-transform:uppercase}.backlight-style-lab__label--day{top:16px;left:16px;background:#fff;color:#23343d}.backlight-style-lab__label--night{right:16px;bottom:16px;background:#f5cc7a;color:#20160b}
.backlight-style-lab__controls{display:grid;align-content:center;gap:0}.backlight-style-factor{padding:21px 0;border-bottom:1px solid rgba(129,191,216,.22)}.backlight-style-factor:last-child{border-bottom:0}.backlight-style-factor h4{margin:0 0 12px;color:#f4f9fb;font-size:17px}.backlight-style-factor a{display:inline-block;margin-top:12px;color:#b7ef4b!important;font-size:13px;font-weight:700}.backlight-swatches,.backlight-light-swatches,.backlight-font-samples{display:flex;flex-wrap:wrap;gap:9px}.backlight-swatches span{display:grid;width:50px;height:50px;place-items:end center;padding-bottom:5px;border:1px solid rgba(255,255,255,.25);border-radius:50%;font-size:0;box-shadow:0 5px 14px rgba(0,0,0,.2)}.backlight-swatches .is-white{background:#f2f3ef}.backlight-swatches .is-black{background:#12161a}.backlight-swatches .is-gray{background:#7b858b}.backlight-swatches .is-red{background:#bd2933}.backlight-swatches .is-blue{background:#2571b9}.backlight-swatches .is-green{background:#498b43}
.backlight-light-swatches span{padding:9px 11px;border-radius:8px;background:#102b39;color:#ddecf2;font-size:12px}.backlight-light-swatches .is-cold{box-shadow:inset 0 0 0 1px #d8efff}.backlight-light-swatches .is-warm{box-shadow:inset 0 0 0 1px #ffd790;color:#ffe7bd}.backlight-light-swatches .is-color{box-shadow:inset 0 0 0 1px #7da5ff;color:#b9caff}
.backlight-font-samples span{display:inline-flex;align-items:center;min-height:42px;padding:8px 11px;border-left:2px solid #b7ef4b;background:rgba(255,255,255,.045);color:#edf6f9}.backlight-font-samples .is-simple{font:700 12px Arial,sans-serif}.backlight-font-samples .is-geo{font:800 11px Arial,sans-serif;letter-spacing:.08em}.backlight-font-samples .is-accent{font:italic 700 17px Georgia,serif}
.backlight-style-factor--contrast>div{display:grid;grid-template-columns:minmax(100px,1fr) 20px minmax(120px,1fr);align-items:center;gap:8px;margin-top:8px;font-size:12px}.backlight-style-factor--contrast span{padding:9px;border-radius:6px;text-align:center}.facade-light{background:#e8ecec;color:#24333b}.letter-dark{background:#172027;color:#f2f6f7}.facade-dark{background:#172027;color:#f2f6f7}.letter-light{background:#e8ecec;color:#24333b}
@media(max-width:900px){.backlight-editorial,.backlight-style-lab{grid-template-columns:1fr}.backlight-editorial--reverse .backlight-editorial__media,.backlight-editorial--night .backlight-editorial__media{order:2}.backlight-editorial--reverse .backlight-editorial__copy,.backlight-editorial--night .backlight-editorial__copy{order:1}.backlight-style-lab__stage{min-height:320px}}
@media(max-width:520px){.backlight-product-page__seo-content .backlight-content-flow{margin-top:24px}.backlight-editorial,.backlight-style-lab{padding:38px 19px}.backlight-editorial__copy h3{font-size:27px}.backlight-product-page__seo-content .backlight-editorial__media img{border-radius:13px}.backlight-style-lab__stage{min-height:285px}.backlight-style-lab__letter{font-size:170px}.backlight-swatches span{width:42px;height:42px}.backlight-style-factor--contrast>div{grid-template-columns:1fr 16px 1fr}}
















/* PRODUCT_CTA_ANCHOR_20260908 */
#product-portfolio{scroll-margin-top:120px}
/* /PRODUCT_CTA_ANCHOR_20260908 */