:root{color-scheme:light;--bg:#faf9f7;--bg-soft:#f3f0ea;--text:#1a1a1a;--body:#3d3a36;--muted:#7a756e;--line:#e5e2dc;--line-strong:#d4cec5;--accent:#ff4d00;--accent-dark:#e64500;--radius-s:10px;--radius-m:14px;--radius-l:24px;--shadow:0 14px 40px rgba(26,26,26,.08);--container:min(1160px,calc(100% - 32px))}
:root[data-theme="dark"]{color-scheme:dark;--bg:#0d1117;--bg-soft:#161b22;--text:#f3f6fb;--body:#d3dae6;--muted:#99a3b4;--line:#273142;--line-strong:#3a4860;--shadow:0 18px 48px rgba(0,0,0,.34)}
*,*::before,*::after{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;font-family:"Inter",sans-serif;background:var(--bg);color:var(--body);line-height:1.6;overflow-x:clip} [hidden]{display:none!important}
a{color:inherit;text-decoration:none} img{display:block;max-width:100%} button,input,select,textarea{font:inherit}
.container{width:var(--container);margin:0 auto}.section{padding:88px 0}.section-alt{background:var(--bg-soft)}
.tag{display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;color:var(--accent);font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase}.tag::before{content:"";width:20px;height:2px;border-radius:999px;background:var(--accent)}.tag-clean::before{content:none}
.section-title{margin:0 0 14px;color:var(--text);font-size:clamp(30px,4.8vw,54px);font-weight:800;line-height:1.08;letter-spacing:-.04em}.section-sub{max-width:700px;margin:0 0 38px;color:var(--muted);font-size:16px}
.site-header{position:fixed;inset:0 0 auto;z-index:999;padding:calc(12px + env(safe-area-inset-top,0px)) 0 12px;transition:padding .25s ease,background .25s ease,border-color .25s ease;border-bottom:1px solid transparent;background:rgba(250,249,247,.92);backdrop-filter:blur(20px)}.site-header.scrolled{padding:calc(8px + env(safe-area-inset-top,0px)) 0 8px;background:rgba(250,249,247,.94);border-bottom-color:var(--line)}
.header-wrap{display:flex;align-items:center;gap:20px}.logo{display:inline-flex;align-items:baseline;font-size:18px;font-weight:800;letter-spacing:-.03em;color:var(--text)}.logo .print{color:var(--accent)}.logo small{margin-left:8px;color:#9c968e;font-size:14px;font-weight:600}
.nav-toggle{position:relative;z-index:1001;display:inline-flex;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;margin-left:auto;padding:10px;border:0;border-radius:var(--radius-s);background:transparent}.nav-toggle span{display:block;height:2px;border-radius:999px;background:var(--text);transition:transform .25s ease,opacity .25s ease}.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}.nav-toggle.is-open span:nth-child(2){opacity:0}.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-links{display:none;align-items:center;gap:8px;margin-left:auto}.nav-menu{position:absolute;top:calc(100% + 10px);left:16px;right:16px;z-index:1000;display:none;flex-direction:column;gap:10px;padding:16px;border:1px solid var(--line);border-radius:24px;background:rgba(255,255,255,.98);box-shadow:0 24px 60px rgba(26,26,26,.16)}.nav-menu.open{display:flex}
.nav-link,.nav-menu a{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 16px;border-radius:var(--radius-s);font-size:14px;font-weight:600}.nav-menu a:not(.btn){background:var(--bg-soft)}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:0 26px;border:0;border-radius:var(--radius-m);font-weight:700;transition:.25s ease}.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 28px rgba(255,77,0,.26)}.btn-primary:hover{background:var(--accent-dark);transform:translateY(-1px)}.btn-outline{border:1.5px solid var(--line-strong);background:transparent;color:var(--text)}.btn-outline:hover{border-color:var(--accent);color:var(--accent)}
main{padding-top:calc(84px + env(safe-area-inset-top,0px))}.hero{position:relative;overflow:hidden;padding:82px 0 72px;background:radial-gradient(rgba(0,0,0,.05) 1px,transparent 1px) 0 0/28px 28px,var(--bg)}.hero::before{content:"";position:absolute;top:-240px;right:-180px;width:680px;height:680px;border-radius:50%;background:radial-gradient(circle,rgba(255,77,0,.11) 0%,transparent 65%)}.hero-wrap{position:relative;z-index:1}.hero.tight{padding:34px 0 12px}.section.tight{padding:14px 0 48px}
.hero-chip{display:inline-flex;align-items:center;gap:8px;padding:7px 14px;margin-bottom:18px;border:1px solid rgba(255,77,0,.18);border-radius:999px;background:rgba(255,77,0,.08);color:var(--accent);font-size:13px;font-weight:700}.hero-title{max-width:920px;margin:0 0 18px;color:var(--text);font-size:clamp(38px,6vw,74px);font-weight:900;line-height:.95;letter-spacing:-.05em;text-wrap:balance}.hero-title .accent{display:block;color:var(--accent)}.hero-sub{max-width:760px;margin:0 0 30px;color:var(--muted);font-size:clamp(16px,2vw,19px);line-height:1.55}.calc-hero-wrap{display:grid;justify-items:center}.calc-hero-wrap .hero-chip{margin-bottom:10px}.calc-hero-wrap .hero-title{max-width:980px;margin:0 auto 10px;text-align:center;font-size:clamp(34px,5vw,52px);line-height:.98}.calc-hero-wrap .hero-title .accent{display:inline}.calc-hero-wrap .hero-sub{max-width:980px;margin:0 auto;text-align:center;color:var(--muted);font-size:clamp(14px,1.6vw,16px)}
body:not(.materials-page) .hero-wrap:not(.calc-hero-wrap){display:grid;justify-items:center}
body:not(.materials-page) .hero-wrap:not(.calc-hero-wrap) .hero-chip{margin-bottom:18px}
body:not(.materials-page) .hero-wrap:not(.calc-hero-wrap) .hero-title{margin:0 auto 18px;text-align:center}
body:not(.materials-page) .hero-wrap:not(.calc-hero-wrap) .hero-sub{margin:0 auto 30px;text-align:center}
body:not(.materials-page) .hero-wrap:not(.calc-hero-wrap) .hero-actions{justify-content:center}
.hero-actions,.footer-social{display:flex;flex-wrap:wrap;gap:14px}.hero-stats{display:grid;grid-template-columns:1fr;gap:18px;margin:34px auto 0;padding:10px 0 4px;max-width:1120px;align-items:start;justify-items:center}.hero-stat,.hero-stat-center{display:flex;flex-direction:column;align-items:flex-start;justify-content:flex-start;gap:6px;width:100%;max-width:320px}.hero-stat strong{display:block;color:var(--text);font-size:28px;font-weight:800;line-height:1}.hero-stat span{display:block;color:var(--muted);font-size:13px;line-height:1.45;text-align:left}.hero-stat-center{align-items:center}.hero-stat-center strong,.hero-stat-center span{text-align:center}.hero-stats .hero-stat:nth-child(3){align-items:center}.hero-stats .hero-stat:nth-child(3) strong{white-space:nowrap}.hero-stats .hero-stat:nth-child(3) span{text-align:left}.hero-stats .hero-stat:nth-child(4){align-items:center}.hero-stats .hero-stat:nth-child(4) span{text-align:center}
.big-grid,.card-grid,.catalog-grid,.gallery-grid,.steps,.footer-grid,.calc-grid,.metric-row{display:grid;gap:20px}
.big-card{display:flex;flex-direction:column;gap:18px;padding:36px 30px;border-radius:var(--radius-l);color:#fff}.big-card.orange{background:var(--accent)}.big-card.dark{background:#1d1f23}.big-card h3{margin:0;font-size:clamp(24px,3vw,32px);line-height:1.1}.big-card p{margin:0;color:rgba(255,255,255,.82)}.big-card a{display:inline-flex;align-items:center;width:fit-content;padding:13px 20px;border:1px solid rgba(255,255,255,.22);border-radius:var(--radius-m);background:rgba(255,255,255,.12);font-weight:700}
.metric{padding:22px 20px;border-top:3px solid var(--accent);border-radius:var(--radius-l);background:#fff;box-shadow:0 1px 4px rgba(0,0,0,.05),0 0 0 1px var(--line)}.metric strong{display:block;margin-bottom:6px;color:var(--text);font-size:18px}.use-cases-grid{grid-template-columns:1fr}
.card,.catalog-card,.gallery-card,.result-card,.form-card{overflow:hidden;border-radius:var(--radius-l);background:#fff;box-shadow:0 1px 4px rgba(0,0,0,.05),0 0 0 1px var(--line)}.card img,.catalog-card img,.gallery-card img{width:100%;aspect-ratio:1/1;object-fit:cover}.card-body,.catalog-body,.gallery-body,.result-card,.form-card{padding:22px 20px}.calc-section .form-card{padding:14px}
.card h3,.catalog-card h3,.gallery-card h3,.result-card h3{margin:0 0 10px;color:var(--text);font-size:18px}.card p,.catalog-card p,.gallery-card p{margin:0;color:var(--muted);font-size:14px}
.badge{display:inline-flex;margin-bottom:14px;padding:5px 11px;border-radius:999px;background:rgba(255,77,0,.08);color:var(--accent);font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase}
.check-list,.card ul{margin:14px 0 0;padding:0;list-style:none}.check-list li,.card li{position:relative;margin-bottom:10px;padding-left:22px;color:var(--muted);font-size:14px}.check-list li::before,.card li::before{content:"✓";position:absolute;left:0;color:var(--accent);font-weight:800}
.feature{display:grid;width:min(1180px,calc(100vw - 32px));margin:0 auto 28px;border:1px solid var(--line);border-radius:var(--radius-xl);overflow:hidden;background:#fff;box-shadow:0 1px 4px rgba(0,0,0,.05)}.feature.alt{background:var(--bg)}.feature-image{min-height:260px}.feature-image img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover}.feature-body{padding:32px 24px}.feature-body .section-title{font-size:clamp(30px,4vw,48px);margin-bottom:12px}.feature-body .section-sub{font-size:16px;margin-bottom:20px}
.section-tight{padding-top:24px}.mosaic-grid{display:grid;gap:18px}.mosaic-card{overflow:hidden;border:1px solid var(--line);border-radius:var(--radius-xl);background:#fff;box-shadow:0 1px 4px rgba(0,0,0,.05)}.mosaic-photo{min-height:240px}.mosaic-photo img{width:100%;height:100%;display:block;object-fit:cover}.mosaic-info{display:flex;flex-direction:column;justify-content:center;gap:16px;min-height:240px;padding:28px 26px;background:#232629;color:#fff}.mosaic-info .tag{margin:0;color:#ffb08f;background:transparent;border:0;padding:0;font-size:12px;letter-spacing:.08em;text-transform:uppercase}.mosaic-info h3{margin:0;font-size:clamp(24px,3vw,34px);line-height:1.05}.mosaic-info p{margin:0;color:rgba(255,255,255,.8);font-size:15px;line-height:1.6}.btn-ghost{display:inline-flex;align-items:center;justify-content:center;width:fit-content;padding:14px 22px;border:1px solid rgba(255,255,255,.16);border-radius:var(--radius-m);background:rgba(255,255,255,.08);color:#fff;font-weight:700}.btn-ghost:hover{background:rgba(255,255,255,.14)}
.step{padding:28px 22px;border-radius:var(--radius-l);background:#fff;box-shadow:0 1px 4px rgba(0,0,0,.05),0 0 0 1px var(--line)}.step-number{display:inline-grid;place-items:center;width:42px;height:42px;margin-bottom:14px;border-radius:12px;background:var(--accent);color:#fff;font-weight:800}
.field,.select,.range-box{padding:16px 18px;border:1.5px solid var(--line);border-radius:var(--radius-m);background:#fff}.field label,.select label,.range-box label{display:block;margin-bottom:8px;color:var(--text);font-weight:700;font-size:14px}.field input,.field textarea,.select select{width:100%;border:0;outline:0;background:transparent;color:var(--text)}
.range-meta{display:flex;justify-content:space-between;gap:12px;margin-top:10px;color:var(--muted);font-size:14px}.result-card strong{display:block;margin:8px 0 14px;color:var(--text);font-size:clamp(34px,5vw,46px);line-height:1}
.calc-form{display:grid;gap:10px}.check-grid{display:grid;gap:14px}.calc-hero{padding-bottom:28px}.calc-hero-wrap,.calc-section{text-align:center}.calc-section .container{width:min(1280px,calc(100% - 20px))}.calc-head{display:grid;gap:2px;justify-items:center}.calc-toolbar{display:grid;gap:12px}.toolbar-box{display:grid;grid-template-rows:28px minmax(58px,auto) minmax(40px,auto);align-items:start;justify-items:center;gap:12px;padding:18px 18px 16px;border:1px solid var(--line);background:#fff;text-align:center}.toolbar-box label{display:flex;align-items:flex-end;justify-content:center;min-height:28px;margin:0;color:var(--text);font-size:14px;font-weight:700;text-transform:lowercase;line-height:1.2}.calc-toolbar>.toolbar-box:first-child{--toolbar-group-width:300px}.calc-toolbar>.toolbar-box:nth-child(2){--toolbar-group-width:188px}.calc-toolbar>.toolbar-box:nth-child(3){--toolbar-group-width:184px}.calc-toolbar>.toolbar-box:first-child label,.calc-toolbar>.toolbar-box:nth-child(2) label,.calc-toolbar>.toolbar-box:nth-child(3) label{width:var(--toolbar-group-width);max-width:100%;transform:none}.toolbar-inline{display:flex;align-items:center;justify-content:center;gap:14px;min-height:58px;position:relative}.calc-toolbar>.toolbar-box:first-child .toolbar-inline,.calc-toolbar>.toolbar-box:nth-child(2) .toolbar-inline,.calc-toolbar>.toolbar-box:nth-child(3) .toolbar-inline{width:var(--toolbar-group-width);max-width:100%;justify-content:space-between;transform:none;padding-left:0}.calc-toolbar>.toolbar-box:first-child .toolbar-inline{width:auto;max-width:100%;justify-content:center;gap:16px}.calc-toolbar>.toolbar-box:nth-child(2) .toolbar-inline{transform:translateX(-3px)}.calc-toolbar>.toolbar-box:first-child .toolbar-inline strong,.calc-toolbar>.toolbar-box:nth-child(2) .toolbar-inline strong{display:block;position:absolute;top:50%;left:calc(100% + 10px);transform:translateY(-50%);white-space:nowrap}.toolbar-inline input{width:86px;height:44px;border:1px solid var(--line-strong);text-align:center;font-size:18px;font-weight:600;background:transparent}.toolbar-inline span,.toolbar-inline strong{color:var(--text);font-size:18px;font-weight:700;line-height:1}.step-btn{display:grid;place-items:center;width:34px;height:34px;padding:0;border:0;background:transparent;color:#b5b5b5;font-size:34px;cursor:pointer;line-height:1}.preset-row{display:flex;flex-wrap:wrap;justify-content:center;align-content:start;gap:8px;min-height:40px;margin-top:0}.preset-btn{min-height:32px;padding:5px 10px;border:1px solid var(--line);background:#eef3f6;font-size:12px;font-weight:600;cursor:pointer}.option-block{display:grid;gap:8px;padding:10px;border:1px solid var(--line);background:#fff}.option-block.centered{justify-items:center}.option-block>label{color:var(--text);font-size:13px;font-weight:700;text-transform:lowercase}.option-help{max-width:760px;margin:0;color:var(--muted);font-size:12px;line-height:1.45}.option-subpanel{width:100%;padding-top:6px;border-top:1px solid var(--line)}.material-subpanel{padding-top:10px}.material-subpanel[hidden]{display:none!important}.material-flow-indicator{display:grid;justify-items:center;gap:6px;margin:2px 0 14px}.material-flow-line{display:block;width:2px;height:16px;background:linear-gradient(180deg,rgba(255,77,0,.12) 0%,rgba(255,77,0,.42) 100%);border-radius:999px}.material-flow-arrow{display:block;width:14px;height:14px;border-right:2px solid rgba(255,77,0,.72);border-bottom:2px solid rgba(255,77,0,.72);transform:rotate(45deg);margin-top:-4px}.option-grid{display:flex;flex-wrap:wrap;gap:6px}.option-grid.centered,.check-grid.compact-checks{justify-content:center}.option-pill{padding:4px 8px;border:1px solid #d7e0e6;border-radius:5px;background:#eaf2f7;color:var(--text);font-size:11px;line-height:1.15;font-weight:500;cursor:pointer;transition:.2s}.option-pill.active{outline:1px solid rgba(255,77,0,.28);border-color:var(--accent);background:#fff;color:var(--text)}.category-pill{padding:7px 14px;font-size:12px;font-weight:700}.check-pill{display:flex;align-items:center;gap:10px;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:#fff;cursor:pointer}.check-pill input{accent-color:var(--accent)}.calc-result.bottom{text-align:center;padding-top:16px}.calc-result[data-tone="warning"]{border:1px solid rgba(255,77,0,.16);background:linear-gradient(180deg,#fff 0%,#fff9f5 100%)}.calc-result[data-tone="warning"] strong[data-total]{max-width:860px;margin:10px auto 14px;padding:18px 20px;border:1px solid rgba(255,77,0,.14);border-radius:20px;background:rgba(255,77,0,.06);color:#8f2d00;font-size:clamp(22px,3.2vw,34px);line-height:1.18;letter-spacing:-.02em;text-wrap:balance}.calc-result[data-tone="warning"] .price-inline b{color:#8f2d00}.calc-result[data-tone="warning"] .calc-result-note{color:#8b6f62}.calc-selection{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin:10px 0 16px}.calc-selection-pill{display:inline-flex;align-items:center;padding:8px 12px;border-radius:999px;background:rgba(255,77,0,.08);color:var(--text);font-size:12px;font-weight:700}.calc-selection-empty{color:var(--muted);font-size:13px}.price-inline{display:grid;gap:12px;margin:12px 0}.price-inline span{display:block;margin-bottom:6px;color:var(--muted);font-size:12px;text-transform:lowercase}.price-inline b{color:var(--text);font-size:15px}.calc-breakdown{display:grid;gap:10px;margin:12px 0 0}.calc-breakdown-item{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;border-radius:12px;background:#fff7f2;border:1px solid rgba(255,77,0,.12);text-align:left}.calc-breakdown-item span{color:var(--muted);font-size:13px}.calc-breakdown-item strong{margin:0;color:var(--text);font-size:15px;line-height:1.2}.calc-breakdown-item:last-child{background:rgba(255,77,0,.1);border-color:rgba(255,77,0,.22)}.calc-admin-details{margin-top:12px;text-align:left}.calc-admin-details summary{list-style:none;cursor:pointer;color:var(--muted);font-size:12px;font-weight:600;user-select:none}.calc-admin-details summary::-webkit-details-marker{display:none}.calc-admin-details summary::after{content:"Показати";margin-left:8px;color:var(--accent);font-weight:700}.calc-admin-details[open] summary::after{content:"Сховати"}.calc-result-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:16px}.calc-result-note{margin:12px 0 0;color:var(--muted);font-size:13px;line-height:1.5}.calc-summary{display:grid;gap:8px;margin:12px 0 0;padding:12px;border-radius:12px;background:var(--bg-soft);color:var(--body);font-size:12px}.order-layout{width:min(1280px,calc(100% - 20px))}.order-form{display:grid;gap:20px;padding:22px}.order-grid{display:grid;gap:18px}.order-section{display:grid;gap:14px;padding:22px;border-radius:var(--radius-l);border:1px solid var(--line);background:#fff}.order-fields{display:grid;gap:14px}.order-radio-group{display:grid;gap:12px}.order-radio{display:flex;align-items:flex-start;gap:12px;padding:14px 16px;border:1px solid var(--line);border-radius:16px;background:var(--bg-soft);cursor:pointer}.order-radio input{margin-top:3px;accent-color:var(--accent)}.order-radio span{color:var(--text);font-size:14px;line-height:1.45}.order-summary-card{display:grid;gap:14px;align-self:start;padding:24px}.order-summary-lines{display:grid;gap:8px;color:var(--body);font-size:14px}.order-summary-total{display:flex;align-items:center;justify-content:center;min-height:86px;border-radius:20px;background:#fff7f2;color:var(--text);font-size:clamp(24px,3vw,38px);font-weight:800;line-height:1.1;text-align:center}.order-submit{width:100%}.order-note{margin:0;color:var(--muted);font-size:13px;line-height:1.5}.order-hero .hero-title{max-width:980px}.order-hero .hero-sub{max-width:760px}
.filter-row{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px}.filter-btn{padding:12px 18px;border:1.5px solid var(--line-strong);border-radius:999px;background:transparent;font-weight:700;cursor:pointer}.filter-btn.active{border-color:var(--accent);background:var(--accent);color:#fff}.gallery-item[hidden]{display:none}
.materials-page .hero{padding:44px 0 18px}
.materials-page .hero-wrap{display:grid;gap:10px}
.materials-page .hero-chip{margin-bottom:0;justify-self:start;align-self:start;width:auto;max-width:max-content}
.materials-page .hero-title{margin-bottom:4px;max-width:780px;font-size:clamp(38px,5.2vw,66px);line-height:.92}
.materials-page .hero-sub{max-width:700px;margin-bottom:0;font-size:clamp(15px,1.8vw,18px);line-height:1.45}
.materials-page .section{padding-top:12px}
.materials-page .filter-row{gap:10px;margin-bottom:18px}
.materials-page .catalog-grid{gap:18px}
.catalog-media{position:relative;overflow:hidden}
.catalog-image-btn{display:block;width:100%;padding:0;border:0;background:none;cursor:zoom-in}
.catalog-image-btn img{display:block;transition:opacity .54s cubic-bezier(.23,1,.32,1),transform .54s cubic-bezier(.23,1,.32,1),filter .4s ease;will-change:transform,opacity}
.catalog-image-btn img.is-swapping{pointer-events:none}
.catalog-image-btn img.slide-out-left{transform:translateX(-7%) scale(.996);opacity:.86}
.catalog-image-btn img.slide-out-right{transform:translateX(7%) scale(.996);opacity:.86}
.catalog-image-btn img.slide-in-left{transform:translateX(-7%) scale(1.004);opacity:.9}
.catalog-image-btn img.slide-in-right{transform:translateX(7%) scale(1.004);opacity:.9}
.catalog-nav{position:absolute;top:50%;z-index:2;display:grid;place-items:center;width:42px;height:42px;padding:0;border:0;border-radius:999px;background:rgba(13,17,23,.72);color:#fff;box-shadow:0 10px 30px rgba(0,0,0,.24);cursor:pointer;transform:translateY(-50%);transition:background-color .22s ease,transform .22s ease,opacity .22s ease}
.catalog-nav:hover{background:rgba(13,17,23,.9);transform:translateY(calc(-50% - 1px))}
.catalog-nav.prev{left:14px}
.catalog-nav.next{right:14px}
.catalog-nav svg{width:18px;height:18px}
.catalog-dots{position:absolute;left:50%;bottom:14px;z-index:2;display:flex;align-items:center;gap:8px;transform:translateX(-50%)}
.catalog-dot{width:8px;height:8px;padding:0;border:0;border-radius:999px;background:rgba(255,255,255,.38);cursor:pointer;transition:transform .2s ease,background-color .2s ease}
.catalog-dot.active{background:#fff;transform:scale(1.18)}
.catalog-media::after{content:"";position:absolute;inset:auto 0 0;height:84px;background:linear-gradient(180deg,rgba(0,0,0,0) 0%,rgba(0,0,0,.32) 100%);pointer-events:none;opacity:0;transition:opacity .22s ease}
.catalog-media.has-gallery::after{opacity:1}
.lightbox[hidden]{display:none!important}
.lightbox{position:fixed;inset:0;z-index:120;background:rgba(10,10,10,.82);display:grid;place-items:center;padding:24px}
.lightbox-dialog{position:relative;width:min(92vw,1080px);max-height:86vh;border-radius:28px;background:#fff;padding:14px;box-shadow:0 24px 80px rgba(0,0,0,.32)}
.lightbox-image{display:block;width:100%;max-height:calc(86vh - 28px);object-fit:contain;border-radius:20px;background:#f4f1eb;transition:opacity .58s cubic-bezier(.23,1,.32,1),transform .58s cubic-bezier(.23,1,.32,1);will-change:transform,opacity}
.lightbox-image.is-swapping{pointer-events:none}
.lightbox-image.slide-out-left{transform:translateX(-5.5%) scale(.998);opacity:.88}
.lightbox-image.slide-out-right{transform:translateX(5.5%) scale(.998);opacity:.88}
.lightbox-image.slide-in-left{transform:translateX(-5.5%) scale(1.003);opacity:.92}
.lightbox-image.slide-in-right{transform:translateX(5.5%) scale(1.003);opacity:.92}
.lightbox-close{position:absolute;top:10px;right:10px;z-index:2;width:42px;height:42px;border:0;border-radius:999px;background:rgba(26,26,26,.82);color:#fff;font-size:28px;line-height:1;cursor:pointer;display:grid;place-items:center}
.lightbox-nav{position:absolute;top:50%;z-index:2;display:grid;place-items:center;width:54px;height:54px;padding:0;border:0;border-radius:999px;background:rgba(13,17,23,.64);color:#fff;box-shadow:0 16px 38px rgba(0,0,0,.24);cursor:pointer;transform:translateY(-50%);transition:background-color .22s ease,transform .22s ease}
.lightbox-nav:hover{background:rgba(13,17,23,.9);transform:translateY(calc(-50% - 1px))}
.lightbox-nav.prev{left:18px}
.lightbox-nav.next{right:18px}
.lightbox-nav svg{width:22px;height:22px}
.lightbox-dots{position:absolute;left:50%;bottom:22px;z-index:2;display:flex;align-items:center;gap:10px;transform:translateX(-50%)}
.lightbox-dot{width:10px;height:10px;padding:0;border:0;border-radius:999px;background:rgba(255,255,255,.34);cursor:pointer;transition:transform .2s ease,background-color .2s ease}
.lightbox-dot.active{background:#fff;transform:scale(1.16)}
.contact-fab{position:fixed;right:24px;bottom:28px;z-index:990;display:flex;flex-direction:column;align-items:flex-end;gap:10px}.fab-panel,.callback-form{display:none}.fab-panel.open,.callback-form.open{display:grid;gap:10px}
.fab-trigger{-webkit-appearance:none;appearance:none;display:inline-grid;place-items:center;flex:0 0 auto;width:62px;height:62px;padding:0;border:0;border-radius:999px;overflow:hidden;background:var(--accent);background-clip:padding-box;color:#fff;box-shadow:0 16px 36px rgba(255,77,0,.3);cursor:pointer;transition:transform .25s ease,box-shadow .25s ease,background-color .25s ease}.fab-trigger:hover{background:var(--accent-dark);transform:translateY(-2px)}.fab-trigger svg{display:block;width:27px;height:27px}.fab-trigger::before{content:none}
.fab-pill{display:inline-flex;align-items:center;gap:10px;padding:7px 14px;border:2px solid #fff;border-radius:999px;background:#1a1a1a;color:#fff;box-shadow:0 4px 12px rgba(0,0,0,.35);font-size:13px;font-weight:600}.fab-pill .icon,.social-pill .icon{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:50%;color:#fff;font-size:11px;font-weight:700}.fab-pill .icon img,.fab-pill .icon svg,.social-pill img,.social-pill svg{width:22px;height:22px;display:block}.fab-pill .icon img,.fab-pill .icon svg{width:16px;height:16px}.icon.cb{background:var(--accent)}.icon.tg{background:#229ed9}.icon.vb{background:#7360f2}.icon.ig{background:#d9487c}.callback-form{width:min(280px,calc(100vw - 32px));padding:18px;border-radius:18px;background:#fff;box-shadow:var(--shadow)}
.material-subpanel{scroll-margin-top:120px}
.footer{background:#1a1a1a;color:rgba(255,255,255,.76)}.back-top{display:block;width:100%;padding:14px 0 10px;text-align:center;border-bottom:1px solid rgba(255,255,255,.08);color:rgba(255,255,255,.45)}.footer-main{padding:46px 0}.footer-grid{gap:32px}.footer h4{margin:0 0 14px;color:rgba(255,255,255,.5);font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase}.footer p,.footer a,.footer li{color:rgba(255,255,255,.68)}.footer ul{margin:0;padding:0;list-style:none;display:grid;gap:9px}.footer-social{align-items:center;gap:14px;margin-top:20px}.footer-social .social-pill{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;padding:0;border-radius:50%;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);box-shadow:none;transition:background .2s ease,border-color .2s ease,transform .22s ease}.footer-social .social-pill:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.18);transform:translateY(-1px)}.footer-social .social-pill img{width:22px;height:22px;display:block}.footer-bottom{margin-top:16px;padding:18px 0 26px;border-top:1px solid rgba(255,255,255,.1);color:rgba(255,255,255,.35);font-size:13px}.footer-bottom a{color:rgba(255,255,255,.62);text-decoration:underline;text-underline-offset:3px}.footer-bottom a:hover{color:#fff}
.reveal{opacity:0;transform:translate3d(0,18px,0);transition:opacity .64s cubic-bezier(.16,1,.3,1),transform .64s cubic-bezier(.16,1,.3,1);transition-delay:var(--reveal-delay,0ms);will-change:opacity,transform;backface-visibility:hidden}.reveal-up{transform:translate3d(0,22px,0)}.reveal-left{transform:translate3d(-18px,0,0)}.reveal-right{transform:translate3d(18px,0,0)}.reveal-scale{transform:translate3d(0,14px,0) scale(.985)}.reveal.is-visible{opacity:1;transform:translate3d(0,0,0) scale(1)}
.big-card,.card,.catalog-card,.gallery-card,.use-case-card,.feature,.mosaic-card,.stats-card,.materials-card,.hero-stat{transition:transform .28s cubic-bezier(.22,1,.36,1),box-shadow .28s ease,border-color .28s ease}.big-card:hover,.card:hover,.catalog-card:hover,.gallery-card:hover,.use-case-card:hover,.stats-card:hover,.materials-card:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(26,26,26,.08);border-color:rgba(255,77,0,.18)}.hero-stat:hover{transform:none;box-shadow:none;border-color:transparent}.feature:hover,.mosaic-card:hover{transform:translateY(-2px)}
.feature-image,.mosaic-card,.catalog-image-btn,.catalog-card-image,.materials-card img,.card img{overflow:hidden}.feature-image img,.mosaic-card img,.catalog-image-btn img,.catalog-card-image img,.materials-card img,.card img{transition:transform .7s cubic-bezier(.22,1,.36,1),filter .4s ease}.feature:hover .feature-image img,.mosaic-card:hover img,.catalog-card:hover .catalog-image-btn img,.materials-card:hover img,.card:hover img{transform:scale(1.02)}
.btn,.filter-button,.pill-button,.fab-pill,.social-pill,.nav-links a{transition:transform .28s ease,box-shadow .28s ease,background-color .28s ease,border-color .28s ease,color .28s ease}
@media (min-width:768px){.hero-stats,.steps,.footer-grid,.calc-grid,.metric-row{grid-template-columns:repeat(2,minmax(0,1fr))}.hero-stats{column-gap:28px;row-gap:18px;justify-items:stretch}.hero-stat,.hero-stat-center{max-width:none}.use-cases-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.big-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.card-grid,.catalog-grid,.gallery-grid,.materials-grid,.mosaic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.mosaic-card:nth-child(1){order:1}.mosaic-card:nth-child(2){order:2}.mosaic-card:nth-child(3){order:5}.mosaic-card:nth-child(4){order:3}.mosaic-card:nth-child(5){order:4}.mosaic-card:nth-child(6){order:6}.calc-toolbar{grid-template-columns:repeat(3,minmax(0,1fr));justify-content:stretch;max-width:none;width:100%;margin:0;align-items:stretch}.toolbar-box{min-height:178px}.price-inline,.order-fields{grid-template-columns:repeat(2,minmax(0,1fr))}.check-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.nav-toggle,.nav-menu{display:none!important}.nav-links{display:flex}.hero-stats{grid-template-columns:repeat(4,max-content);justify-content:center;justify-items:center;column-gap:44px;row-gap:20px;width:fit-content;max-width:100%}.hero-stat,.hero-stat-center{width:max-content;max-width:none}.hero-stat-center{justify-self:center;align-items:center}.hero-stat-center strong,.hero-stat-center span{width:max-content;text-align:center}.metric-row{grid-template-columns:repeat(4,minmax(0,1fr))}.use-cases-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.materials-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.catalog-grid,.gallery-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.steps{grid-template-columns:repeat(4,minmax(0,1fr))}.feature{grid-template-columns:repeat(2,minmax(0,1fr));min-height:340px}.feature.reverse .feature-image{order:2}.feature.reverse .feature-body{order:1}.feature-body{padding:44px}.mosaic-grid{grid-template-columns:repeat(2,minmax(320px,520px));justify-content:center}.mosaic-card:nth-child(4),.mosaic-card:nth-child(6){min-height:280px}.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr 1fr}.order-form{grid-template-columns:minmax(0,1.2fr) 360px;align-items:start}.order-summary-card{position:sticky;top:110px}}
@media (max-width:767px){.hero{padding:34px 0 24px}.hero-actions{flex-direction:column;align-items:stretch;max-width:420px;gap:10px}.hero-actions .btn{width:100%;justify-content:center}.hero-stats{grid-template-columns:1fr;gap:16px;margin-top:24px;padding:6px 0 0;justify-items:center}.hero-stat,.hero-stat-center{align-items:center;min-width:0;max-width:320px;text-align:center}.hero-stat strong,.hero-stat span,.hero-stat-center strong,.hero-stat-center span{text-align:center}.hero-stat strong{font-size:24px;line-height:1.05}.hero-stat span{font-size:12px;line-height:1.35}.materials-page .filter-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;align-items:stretch}.materials-page .filter-btn{display:flex;align-items:center;justify-content:center;min-height:74px;padding:14px 18px;text-align:center;white-space:normal;line-height:1.2}.materials-page .filter-btn:nth-child(1){grid-column:1/-1}.materials-page .filter-btn:nth-child(4){grid-column:1/-1}.material-categories{display:grid!important;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;width:100%}.material-categories .category-pill{display:flex;align-items:center;justify-content:center;min-height:48px;padding:10px 12px;text-align:center;white-space:normal;line-height:1.25}.material-categories .category-pill:last-child{grid-column:1/-1}.material-subpanel{padding-top:12px}.material-flow-indicator{margin:2px 0 14px}.material-flow-line{height:18px}.material-flow-arrow{width:16px;height:16px;border-right-width:3px;border-bottom-width:3px}.mosaic-grid{display:flex;flex-direction:column;gap:12px}.mosaic-card:nth-child(1){order:1}.mosaic-card:nth-child(2){order:2}.mosaic-card:nth-child(3){order:3}.mosaic-card:nth-child(4){order:4}.mosaic-card:nth-child(5){order:6}.mosaic-card:nth-child(6){order:5}.mosaic-photo,.mosaic-info{min-height:auto}.mosaic-photo img{aspect-ratio:4/3;object-fit:cover}.mosaic-info{padding:20px 18px}.contact-fab{right:18px;bottom:24px;gap:8px}.fab-trigger{width:58px;height:58px}.fab-panel{max-width:calc(100vw - 36px)}.callback-form{width:min(280px,calc(100vw - 36px))}.footer{padding-bottom:112px}.reveal{transform:translate3d(0,12px,0);transition:opacity .52s cubic-bezier(.16,1,.3,1),transform .52s cubic-bezier(.16,1,.3,1)}.reveal-up{transform:translate3d(0,14px,0)}.reveal-left{transform:translate3d(-10px,0,0)}.reveal-right{transform:translate3d(10px,0,0)}.reveal-scale{transform:translate3d(0,10px,0) scale(.99)}}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1!important;transform:none!important}}

.price-lab-page{background:var(--bg-soft)}
.price-lab-shell{display:grid;gap:18px;padding:22px}
.price-lab-toolbar{display:grid;gap:16px}
.price-lab-control{display:grid;gap:8px}
.price-lab-control>span{color:var(--text);font-size:13px;font-weight:700}
.price-lab-control input{width:140px;height:42px;padding:0 12px;border:1px solid var(--line-strong);border-radius:10px;background:#fff}
.price-lab-actions{display:flex;align-items:end;justify-content:flex-start}
.price-lab-summary{padding:14px 16px;border-radius:14px;background:#fff7f2;border:1px solid rgba(255,77,0,.16);color:var(--body);font-size:14px}
.price-lab-table-wrap{overflow:auto;border:1px solid var(--line);border-radius:18px;background:#fff}
.price-lab-table{width:100%;border-collapse:collapse;min-width:980px}
.price-lab-table th,.price-lab-table td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;font-size:14px}
.price-lab-table thead th{position:sticky;top:0;background:var(--bg-soft);color:var(--text);font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.06em}
.price-lab-table tbody tr:hover{background:#fffaf7}
.price-lab-input{width:110px;height:38px;padding:0 10px;border:1px solid var(--line-strong);border-radius:10px;background:#fff}
.price-lab-mini{padding:8px 10px;border:1px solid rgba(255,77,0,.2);border-radius:10px;background:#fff7f2;color:var(--text);font-size:12px;font-weight:700;cursor:pointer}
.price-lab-mini.ghost{margin-left:6px;background:#fff;border-color:var(--line)}
.price-lab-diff{font-weight:700}
.price-lab-diff.is-high{color:#b42318}
.price-lab-diff.is-low{color:#067647}
.price-lab-diff.is-even{color:#7a756e}

@media (min-width:1024px){
  .price-lab-toolbar{grid-template-columns:160px minmax(0,1fr) minmax(0,1fr) minmax(0,1fr) auto;align-items:end}
}

.theme-toggle{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:44px;padding:10px 16px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.72);color:var(--text);box-shadow:0 10px 26px rgba(26,26,26,.08);cursor:pointer;backdrop-filter:blur(14px)}
.theme-toggle:hover{border-color:rgba(255,77,0,.28);transform:translateY(-1px)}
.theme-toggle-icon{position:relative;display:inline-grid;place-items:center;width:20px;height:20px;border-radius:50%;background:linear-gradient(135deg,#ffb347 0%,#ff7a18 48%,#263248 49%,#0d1117 100%);box-shadow:inset 0 0 0 1px rgba(255,255,255,.22)}
.theme-toggle-icon::after{content:"";position:absolute;inset:4px;border-radius:50%;background:rgba(255,255,255,.2)}
.theme-toggle-label{font-size:13px;font-weight:700;line-height:1}

:root[data-theme="dark"] body{background:
radial-gradient(circle at top,rgba(255,77,0,.11),transparent 24%),
var(--bg);color:var(--body)}
:root[data-theme="dark"] .section-alt,
:root[data-theme="dark"] .feature.alt,
:root[data-theme="dark"] .price-lab-page{background:#11161d}
:root[data-theme="dark"] .site-header{background:rgba(13,17,23,.9);border-bottom-color:rgba(58,72,96,.42)}
:root[data-theme="dark"] .site-header.scrolled{background:rgba(13,17,23,.88);border-bottom-color:rgba(58,72,96,.72)}
:root[data-theme="dark"] .logo small{color:#8e9ab0}
:root[data-theme="dark"] .nav-menu{background:rgba(15,20,27,.98);box-shadow:0 24px 60px rgba(0,0,0,.4)}
:root[data-theme="dark"] .nav-menu a:not(.btn),
:root[data-theme="dark"] .theme-toggle,
:root[data-theme="dark"] .callback-form,
:root[data-theme="dark"] .field,
:root[data-theme="dark"] .select,
:root[data-theme="dark"] .range-box,
:root[data-theme="dark"] .metric,
:root[data-theme="dark"] .card,
:root[data-theme="dark"] .catalog-card,
:root[data-theme="dark"] .gallery-card,
:root[data-theme="dark"] .result-card,
:root[data-theme="dark"] .form-card,
:root[data-theme="dark"] .feature,
:root[data-theme="dark"] .mosaic-card,
:root[data-theme="dark"] .step,
:root[data-theme="dark"] .toolbar-box,
:root[data-theme="dark"] .option-block,
:root[data-theme="dark"] .check-pill,
:root[data-theme="dark"] .order-section,
:root[data-theme="dark"] .price-lab-table-wrap{background:#161b22}
:root[data-theme="dark"] .toolbar-inline input,
:root[data-theme="dark"] .field input,
:root[data-theme="dark"] .field textarea,
:root[data-theme="dark"] .select select,
:root[data-theme="dark"] .price-lab-control input,
:root[data-theme="dark"] .price-lab-input{background:#0f141b;color:var(--text)}
:root[data-theme="dark"] .preset-btn{border-color:rgba(255,77,0,.22);background:rgba(255,77,0,.14);color:#ffd8c2}
:root[data-theme="dark"] .option-pill{border-color:rgba(255,77,0,.2);background:rgba(255,77,0,.12);color:#ffe2d1}
:root[data-theme="dark"] .option-pill.active,
:root[data-theme="dark"] .check-pill:hover,
:root[data-theme="dark"] .theme-toggle:hover{background:rgba(255,77,0,.2)}
:root[data-theme="dark"] .option-pill.active{background:rgba(255,77,0,.22);box-shadow:inset 0 0 0 1px rgba(255,140,92,.28)}
:root[data-theme="dark"] .calc-result[data-tone="warning"]{background:linear-gradient(180deg,#161b22 0%,#231b18 100%);border-color:rgba(255,77,0,.24)}
:root[data-theme="dark"] .calc-result[data-tone="warning"] strong[data-total]{background:rgba(255,77,0,.1);border-color:rgba(255,77,0,.22);color:#ffbf99}
:root[data-theme="dark"] .calc-result[data-tone="warning"] .price-inline b{color:#ffbf99}
:root[data-theme="dark"] .calc-result[data-tone="warning"] .calc-result-note{color:#d1b1a0}
:root[data-theme="dark"] .calc-selection-pill,
:root[data-theme="dark"] .badge{background:rgba(255,77,0,.12)}
:root[data-theme="dark"] .order-summary-total,
:root[data-theme="dark"] .price-lab-summary,
:root[data-theme="dark"] .price-lab-mini{background:#221914;color:var(--text);border-color:rgba(255,77,0,.22)}
:root[data-theme="dark"] .price-lab-mini.ghost{background:#161b22;border-color:var(--line)}
:root[data-theme="dark"] .price-lab-table thead th{background:#1b2430}
:root[data-theme="dark"] .price-lab-table tbody tr:hover{background:#1a202b}
:root[data-theme="dark"] .calc-breakdown-item{background:#1d1816;border-color:rgba(255,77,0,.16)}
:root[data-theme="dark"] .calc-breakdown-item:last-child{background:rgba(255,77,0,.14);border-color:rgba(255,77,0,.24)}
:root[data-theme="dark"] .lightbox-dialog{background:#161b22}
:root[data-theme="dark"] .lightbox-image{background:#0f141b}
:root[data-theme="dark"] .fab-pill{border-color:#2f3c4d;background:#11161d}
:root[data-theme="dark"] .hero{background:radial-gradient(rgba(255,255,255,.045) 1px,transparent 1px) 0 0/28px 28px,var(--bg)}
:root[data-theme="dark"] .hero::before{background:radial-gradient(circle,rgba(255,77,0,.16) 0%,transparent 65%)}

@media (max-width:1023px){
  .section{padding:72px 0}
  .hero{padding:64px 0 54px}
  .hero.tight{padding:26px 0 8px}
  .feature,
  .order-layout{width:var(--container)}
  .feature-body,
  .big-card,
  .order-form,
  .order-section,
  .price-lab-shell{padding:24px 20px}
  .big-card{gap:16px}
  .big-card a,
  .btn-ghost{width:100%;justify-content:center}
  .card-body,
  .catalog-body,
  .gallery-body,
  .result-card,
  .form-card{padding:20px 18px}
  .lightbox{padding:16px}
  .lightbox-dialog{width:min(96vw,960px);padding:12px}
}

@media (max-width:960px){
  .calc-toolbar{grid-template-columns:repeat(2,minmax(0,1fr))}
  .calc-toolbar>.toolbar-box:first-child{grid-column:1/-1}
  .calc-toolbar>.toolbar-box:nth-child(2) .toolbar-inline{padding-left:0}
}

@media (max-width:767px){
  :root{--container:min(1160px,calc(100% - 24px))}
  main{padding-top:calc(78px + env(safe-area-inset-top,0px))}
  .site-header{padding:calc(10px + env(safe-area-inset-top,0px)) 0 10px}
  .site-header.scrolled{padding:calc(8px + env(safe-area-inset-top,0px)) 0 8px}
  .header-wrap{gap:12px}
  .logo{font-size:17px}
  .theme-toggle{min-height:42px;padding:10px 14px}
  .theme-toggle-label{font-size:12px}
  .section{padding:56px 0}
  .section-title{margin-bottom:12px;font-size:clamp(28px,9vw,42px)}
  .section-sub{margin-bottom:28px;font-size:15px}
  .hero-sub{font-size:15px}
  .calc-hero-wrap .hero-title{font-size:clamp(30px,10vw,42px)}
  .calc-hero-wrap .hero-sub{font-size:14px;line-height:1.5}
  .feature{width:var(--container);margin-bottom:20px;border-radius:20px}
  .feature-body,
  .mosaic-info,
  .big-card,
  .order-form,
  .order-section,
  .price-lab-shell{padding:20px 18px}
  .big-card{border-radius:20px}
  .big-card h3{font-size:clamp(22px,7vw,30px)}
  .calc-section .container,
  .order-layout{width:var(--container)}
  .calc-toolbar{grid-template-columns:1fr;gap:10px}
  .calc-toolbar>.toolbar-box:first-child{grid-column:auto}
  .calc-toolbar>.toolbar-box:first-child{--toolbar-group-width:304px}
  .calc-toolbar>.toolbar-box:nth-child(2){--toolbar-group-width:176px}
  .calc-toolbar>.toolbar-box:nth-child(3){--toolbar-group-width:168px}
  .toolbar-box{padding:16px 14px 14px}
  .toolbar-inline{gap:10px;min-height:52px}
  .toolbar-inline input{width:78px;height:42px;font-size:17px}
  .toolbar-inline span,
  .toolbar-inline strong{font-size:16px}
  .step-btn{width:30px;height:30px;font-size:30px}
  .preset-row{gap:6px}
  .preset-btn,
  .option-pill,
  .category-pill{font-size:12px}
  .option-block{padding:12px 10px}
  .option-help{font-size:13px}
  .material-categories{grid-template-columns:1fr!important;gap:8px}
  .material-categories .category-pill{min-height:46px;padding:12px 14px;border-radius:12px}
  .material-categories .category-pill:last-child{grid-column:auto}
  .material-subpanel{padding-top:10px}
  .material-flow-indicator{margin:0 0 10px}
  .calc-selection{gap:6px;margin-bottom:14px}
  .calc-selection-pill{padding:7px 10px;font-size:11px}
  .calc-result.bottom .price-inline{display:none}
  .calc-result[data-tone="warning"] strong[data-total]{padding:16px 16px;font-size:clamp(20px,6.2vw,30px)}
  .price-inline{gap:10px}
  .price-inline b{font-size:14px}
  .order-radio{padding:12px 14px}
  .order-summary-total{min-height:72px;font-size:clamp(22px,9vw,34px)}
  .price-lab-shell{gap:14px}
  .price-lab-toolbar{gap:12px}
  .price-lab-control input,
  .price-lab-input{width:100%;max-width:none}
  .price-lab-actions{justify-content:stretch}
  .price-lab-actions .btn{width:100%}
  .price-lab-table-wrap{border-radius:14px}
  .lightbox{padding:10px}
  .lightbox-dialog{width:min(100vw - 16px,960px);padding:10px;border-radius:20px}
  .lightbox-image{border-radius:14px;max-height:calc(100vh - 96px)}
  .lightbox-close{top:8px;right:8px;width:38px;height:38px}
  .lightbox-nav{width:48px;height:48px}
  .lightbox-nav.prev{left:10px}
  .lightbox-nav.next{right:10px}
  .lightbox-dots{bottom:14px;gap:8px}
  .lightbox-dot{width:9px;height:9px}
  .contact-fab{right:16px;bottom:calc(18px + env(safe-area-inset-bottom,0px))}
  .fab-trigger{width:56px;height:56px}
  .fab-trigger svg{width:24px;height:24px}
  .footer-main{padding:38px 0}
  .footer-grid{gap:24px}
}

@media (max-width:479px){
  :root{--container:min(1160px,calc(100% - 20px))}
  .logo small{display:none}
  .logo{font-size:16px}
  .nav-menu{left:10px;right:10px;padding:14px}
  .hero{padding:50px 0 42px}
  .hero-chip{margin-bottom:14px;padding:6px 12px;font-size:12px}
  .hero-title{font-size:clamp(30px,11vw,40px)}
  .hero-sub{font-size:14px}
  .hero-actions{gap:8px}
  .btn{min-height:48px;padding:0 18px}
  .hero-stat strong{font-size:22px}
  .hero-stat span{font-size:12px}
  .feature-body,
  .mosaic-info,
  .big-card,
  .order-form,
  .order-section,
  .price-lab-shell{padding:18px 16px}
  .calc-toolbar>.toolbar-box:first-child{--toolbar-group-width:268px}
  .calc-toolbar>.toolbar-box:nth-child(2){--toolbar-group-width:164px}
  .calc-toolbar>.toolbar-box:nth-child(3){--toolbar-group-width:156px}
  .toolbar-box{padding:14px 12px 12px}
  .toolbar-box label{font-size:13px}
  .toolbar-inline{gap:8px}
  .toolbar-inline input{width:72px;height:40px;font-size:16px}
  .toolbar-inline span,
  .toolbar-inline strong{font-size:15px}
  .step-btn{width:28px;height:28px;font-size:28px}
  .preset-btn{min-height:30px;padding:4px 8px;font-size:11px}
  .option-pill,
  .category-pill{padding:6px 9px;font-size:11px}
  .option-help,
  .calc-result-note,
  .order-note{font-size:12px}
  .calc-selection-pill{font-size:10px}
  .lightbox{padding:8px}
  .lightbox-dialog{width:min(100vw - 12px,960px);padding:8px;border-radius:16px}
  .contact-fab{right:12px}
  .fab-panel{max-width:calc(100vw - 24px)}
  .callback-form{width:min(280px,calc(100vw - 24px))}
}

@media (max-width:360px){
  :root{--container:min(1160px,calc(100% - 16px))}
  main{padding-top:calc(72px + env(safe-area-inset-top,0px))}
  .site-header{padding:calc(8px + env(safe-area-inset-top,0px)) 0 8px}
  .header-wrap{gap:8px}
  .logo{font-size:15px}
  .nav-toggle{width:40px;height:40px;padding:8px}
  .hero{padding:42px 0 34px}
  .hero-chip{padding:5px 10px;font-size:11px}
  .hero-title{font-size:clamp(26px,12vw,34px);line-height:1}
  .hero-sub{font-size:13px;line-height:1.45}
  .section-title{font-size:clamp(24px,10vw,34px)}
  .section-sub{font-size:14px}
  .calc-hero-wrap .hero-title{font-size:clamp(24px,11vw,34px)}
  .calc-hero-wrap .hero-sub{font-size:13px}
  .feature-body,
  .mosaic-info,
  .big-card,
  .order-form,
  .order-section,
  .price-lab-shell{padding:16px 14px}
  .calc-toolbar>.toolbar-box:first-child{--toolbar-group-width:232px}
  .calc-toolbar>.toolbar-box:nth-child(2){--toolbar-group-width:148px}
  .calc-toolbar>.toolbar-box:nth-child(3){--toolbar-group-width:142px}
  .toolbar-box{grid-template-rows:24px auto auto;padding:12px 10px 10px}
  .toolbar-box label{min-height:24px;font-size:12px}
  .toolbar-inline{flex-wrap:wrap;gap:6px;min-height:auto}
  .toolbar-inline input{width:64px;height:38px;font-size:15px}
  .toolbar-inline span,
  .toolbar-inline strong{font-size:14px}
  .step-btn{width:24px;height:24px;font-size:24px}
  .preset-row,
  .material-categories,
  .option-grid{display:grid;grid-template-columns:1fr;justify-items:stretch}
  .preset-btn,
  .option-pill,
  .category-pill{width:100%;justify-content:center;text-align:center}
  .material-categories .category-pill:last-child{grid-column:auto}
  .option-help,
  .calc-result-note,
  .order-note{font-size:11px}
  .calc-selection{display:grid;grid-template-columns:1fr;gap:6px}
  .calc-selection-pill{justify-content:center;width:100%}
  .price-inline{grid-template-columns:1fr}
  .lightbox{padding:6px}
  .lightbox-dialog{width:min(100vw - 8px,960px);padding:6px;border-radius:14px}
  .contact-fab{right:10px;bottom:calc(10px + env(safe-area-inset-bottom,0px))}
  .fab-trigger{width:52px;height:52px}
}

@media (max-width:767px){
  .catalog-nav{width:38px;height:38px}
  .catalog-nav.prev{left:10px}
  .catalog-nav.next{right:10px}
  .catalog-dots{bottom:10px;gap:7px}
  .catalog-dot{width:7px;height:7px}
}