/* СтройМаркет — «чертёжный лист»: миллиметровка, размерные линии и штамп чертежа как сквозной мотив; красный бренда — акцент, графит вместо чёрного */
:root{
  --paper:#F2F5F7; --surface:#FFFFFF; --ink:#1B2026; --muted:#56626D; --line:#C7D2DA; --grid:rgba(80,120,150,.10);
  --red:#E3241B; --red-hover:#C81D15; --red-ink:#FFFFFF; --red-soft:#FDE7E5; --sky:#DCEAF3; --sky-ink:#1D4560;
  --ok:#E3F4E8; --ok-ink:#17532B; --err:#FDE7E5; --err-ink:#8E1A13;
  --f-display:"Unbounded","Arial Black",system-ui,sans-serif;
  --f-body:"Golos Text","Segoe UI",system-ui,-apple-system,sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,"SFMono-Regular",Menlo,monospace;
  --r:6px; --wrap:1200px; --shadow:0 16px 36px rgba(20,30,40,.12);
  color-scheme:light;
}
@media (prefers-color-scheme: dark){:root{
  --paper:#11151A; --surface:#181E25; --ink:#EDF1F4; --muted:#9BA8B3; --line:#2B3640; --grid:rgba(140,180,210,.07);
  --red:#FF4A3D; --red-hover:#FF6A5F; --red-ink:#16090A; --red-soft:#3A1715; --sky:#18303F; --sky-ink:#BFE0F5;
  --ok:#14301E; --ok-ink:#A8E6BC; --err:#3A1715; --err-ink:#FFB4AC; --shadow:0 16px 36px rgba(0,0,0,.4);
  color-scheme:dark}}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:400 17px/1.6 var(--f-body);-webkit-font-smoothing:antialiased}
img,video{max-width:100%}
a{color:inherit}
h1,h2,h3{font-family:var(--f-display);line-height:1.12;margin:0;text-wrap:balance;letter-spacing:-.01em}
h1{font-size:clamp(1.9rem,3.9vw,3.1rem);font-weight:800}
h2{font-size:clamp(1.6rem,3vw,2.4rem);font-weight:700}
h3{font-size:1.05rem;font-weight:700;letter-spacing:0}
p{margin:0}
.wrap{max-width:var(--wrap);margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.mono{font-family:var(--f-mono);font-size:.78rem;font-weight:500;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.eyebrow{display:block;margin-bottom:12px;color:var(--red)}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:8px;top:-60px;z-index:50;background:var(--red);color:var(--red-ink);padding:8px 14px;border-radius:var(--r)}
.skip:focus{top:8px}
:focus-visible{outline:3px solid var(--red);outline-offset:3px;border-radius:2px}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:.6em;padding:.95em 1.5em;border-radius:var(--r);font:600 1rem var(--f-body);text-decoration:none;border:2px solid transparent;cursor:pointer;transition:transform .15s,background .15s,color .15s}
.btn-red{background:var(--red);color:var(--red-ink)}
.btn-red:hover{background:var(--red-hover);transform:translateY(-2px)}
.btn-line{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-line:hover{background:var(--ink);color:var(--paper)}
.btn svg{flex:none}

/* header */
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:color-mix(in srgb,var(--paper) 88%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:24px;padding-block:14px;position:relative}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;font:800 1.15rem var(--f-display);letter-spacing:-.02em;flex:none}
.logo b{color:var(--red);font-weight:800}
.logo small{display:block;font:500 .62rem var(--f-mono);letter-spacing:.14em;color:var(--muted);text-transform:uppercase}
.nav{display:flex;gap:26px;margin-left:auto}
.nav a{text-decoration:none;font-weight:500;font-size:.95rem}
.nav a:hover,.nav a[aria-current="page"]{color:var(--red)}
.phone{font:600 1rem var(--f-body);text-decoration:none;white-space:nowrap}
.burger{display:none;margin-left:auto;background:none;border:1px solid var(--line);border-radius:var(--r);padding:8px 10px;color:var(--ink);cursor:pointer}
@media (max-width:1060px){
  .nav{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;gap:0;background:var(--surface);border-bottom:1px solid var(--line);padding:8px max(16px,env(safe-area-inset-right,0px)) 16px max(16px,env(safe-area-inset-left,0px));box-shadow:var(--shadow)}
  .nav.open{display:flex}
  .nav a{padding:12px 0;border-bottom:1px solid var(--line)}
  .burger{display:block}
}
@media (max-width:560px){.top .phone{display:none}}

/* hero */
.grid-bg{background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:24px 24px}
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero .wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center;padding-block:64px 56px}
.hero-copy{display:grid;gap:24px;min-width:0}
.hero h1 em{font-style:normal;color:var(--red)}
.lead{font-size:1.15rem;color:var(--muted);max-width:34em}
.cta{display:flex;flex-wrap:wrap;gap:12px}
.facts{display:grid;grid-template-columns:repeat(var(--n,3),1fr);border-top:1px solid var(--line);margin-top:8px}
.facts div{padding:16px 16px 0 0;display:grid;gap:4px;align-content:start}
.facts div+div{padding-left:16px;border-left:1px solid var(--line)}
.facts strong{font:700 1.5rem var(--f-display)}
.facts span{font-size:.88rem;color:var(--muted);line-height:1.35}
.drawing{position:relative;min-width:0;padding-bottom:24px}
.drawing svg{width:100%;height:auto;display:block}
.drawing .photo{position:absolute;right:0;bottom:0;width:46%;margin:0;border:6px solid var(--surface);border-radius:4px;box-shadow:var(--shadow)}
.drawing .photo img{display:block;width:100%;height:auto;aspect-ratio:4/3;object-fit:cover}
.drawing .photo figcaption{position:absolute;left:0;bottom:0;background:var(--surface);padding:4px 8px;font:500 .66rem var(--f-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.dw{fill:none;stroke:var(--ink);stroke-width:2;stroke-linejoin:round}
.dw-thin{fill:none;stroke:var(--muted);stroke-width:1}
.dw-glass{fill:var(--sky);stroke:var(--ink);stroke-width:1.5}
.dw-red{fill:var(--red)}
.dw-txt{font:500 11px var(--f-mono);fill:var(--muted);letter-spacing:.04em}
.dw-axis{fill:var(--surface);stroke:var(--ink);stroke-width:1.2}
.dw-axis-t{font:600 11px var(--f-mono);fill:var(--ink);text-anchor:middle;dominant-baseline:central}
.draw-in .dw{stroke-dasharray:1400;stroke-dashoffset:0;animation:draw 1.6s ease-out both}
@keyframes draw{from{stroke-dashoffset:1400}to{stroke-dashoffset:0}}
@media (max-width:900px){.hero .wrap{grid-template-columns:1fr;padding-block:40px}.facts strong{font-size:1.2rem}}
@media (max-width:480px){.facts{grid-template-columns:1fr}.facts div+div{padding-left:0;border-left:0;border-top:1px solid var(--line);padding-top:12px}.facts div{padding-right:0}}

/* inner page header */
.page-head{border-bottom:1px solid var(--line)}
.page-head .wrap{padding-block:40px 48px;display:grid;gap:16px}
.page-head .lead{max-width:44em}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0;font:500 .74rem var(--f-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.crumbs li+li::before{content:"/";margin-right:6px;color:var(--line)}
.crumbs a{text-decoration:none}
.crumbs a:hover{color:var(--red)}

/* sections */
.block{padding-block:88px}
.band{background:var(--surface);border-block:1px solid var(--line)}
.head{display:flex;flex-wrap:wrap;align-items:end;justify-content:space-between;gap:16px 40px;margin-bottom:40px}
.head>p{max-width:32em;color:var(--muted)}
.head .all{font-weight:600;color:var(--red);text-decoration:none;white-space:nowrap}
.head .all:hover{text-decoration:underline}
@media (max-width:700px){.block{padding-block:56px}}

/* services */
.svc{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.svc>a{padding:28px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);display:grid;gap:12px;align-content:start;background:var(--surface);text-decoration:none;transition:background .2s}
.svc>a:hover{background:var(--red-soft)}
.svc .ico{width:44px;height:44px;stroke:var(--red);fill:none;stroke-width:1.6;stroke-linejoin:round;stroke-linecap:round}
.svc p{color:var(--muted);font-size:.95rem}
@media (max-width:900px){.svc{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.svc{grid-template-columns:1fr}}

/* project cards */
.proj{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.card{display:grid;grid-template-rows:auto 1fr;text-decoration:none;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--paper);transition:transform .2s,box-shadow .2s}
.band .card{background:var(--paper)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.card .pic{position:relative;background:var(--sky)}
.card img{display:block;width:100%;height:auto;aspect-ratio:16/10;object-fit:cover}
.tag{position:absolute;left:12px;top:12px;background:var(--surface);color:var(--ink);padding:4px 8px;border-radius:3px;font:500 .68rem var(--f-mono);letter-spacing:.08em;text-transform:uppercase}
.card .body{display:grid;grid-template-rows:1fr auto auto;gap:16px;padding:20px}
.card h3{align-self:start}
.more{font-weight:600;color:var(--red);display:flex;align-items:center;gap:.4em}
@media (max-width:980px){.proj{grid-template-columns:1fr 1fr}}
@media (max-width:620px){.proj{grid-template-columns:1fr}}

/* штамп чертежа */
.stamp{display:grid;grid-template-columns:1fr 1fr;border:1.5px solid var(--ink);font:500 .78rem var(--f-mono);margin:0}
.stamp div{padding:6px 10px;display:grid;gap:1px;border-right:1px solid var(--ink);border-bottom:1px solid var(--ink);min-width:0}
.stamp div:nth-child(2n){border-right:0}
.stamp div:nth-last-child(-n+2):nth-child(odd),.stamp div:last-child{border-bottom:0}
.stamp dt{font-size:.62rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.stamp dd{margin:0;font-variant-numeric:tabular-nums}

/* works */
.works{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.work{position:relative;margin:0;border-radius:var(--r);overflow:hidden;grid-column:span 2;display:block;text-decoration:none;background:var(--sky)}
.works .work:nth-child(1),.works .work:nth-child(2){grid-column:span 3}
.work img{display:block;width:100%;height:100%;aspect-ratio:3/2;object-fit:cover;transition:transform .5s}
.work:hover img{transform:scale(1.04)}
.work .cap{position:absolute;inset:auto 0 0 0;padding:40px 18px 16px;background:linear-gradient(transparent,rgba(10,14,18,.82));color:#fff;display:grid;gap:2px}
.work .cap b{font:700 1rem var(--f-display)}
.work .cap span{font:500 .7rem var(--f-mono);letter-spacing:.08em;text-transform:uppercase;opacity:.85}
.works.even .work{grid-column:span 2}
@media (max-width:820px){.works{grid-template-columns:1fr 1fr}.works .work,.works .work:nth-child(1),.works .work:nth-child(2),.works.even .work{grid-column:span 1}}
@media (max-width:520px){.works{grid-template-columns:1fr}}

/* steps */
.steps{display:grid;grid-template-columns:repeat(var(--n,5),1fr);counter-reset:s;margin:0;padding:0}
.steps li{list-style:none;counter-increment:s;padding:56px 20px 0 0;position:relative;display:grid;gap:8px;align-content:start}
.steps li::before{content:counter(s,decimal-leading-zero);position:absolute;top:0;left:0;font:700 .8rem var(--f-mono);color:var(--red);padding-right:10px}
.steps li::after{content:"";position:absolute;top:9px;left:34px;right:0;border-top:1px dashed var(--line)}
.steps li p{color:var(--muted);font-size:.93rem}
@media (max-width:900px){.steps{grid-template-columns:1fr 1fr;row-gap:32px}}
@media (max-width:520px){.steps{grid-template-columns:1fr}}

/* about */
.about{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.about figure{margin:0;min-width:0}
.about figure img{display:block;width:100%;height:auto;border-radius:var(--r);aspect-ratio:3/2;object-fit:cover}
.about figure figcaption{margin-top:10px}
.about .txt{display:grid;gap:18px;min-width:0}
.about .txt>p,.about .txt .prose p{color:var(--muted)}
.checks{display:grid;gap:12px;padding:0;margin:8px 0 0}
.checks li{list-style:none;display:grid;grid-template-columns:24px 1fr;gap:12px;align-items:start}
.checks li::before{content:"";width:16px;height:16px;margin-top:5px;background:var(--red);clip-path:polygon(50% 0,100% 45%,100% 100%,0 100%,0 45%)}
@media (max-width:860px){.about{grid-template-columns:1fr;gap:32px}}

/* contact block */
.contact{display:grid;grid-template-columns:1fr 1.1fr;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--surface)}
.contact .info{padding:40px;display:grid;gap:22px;align-content:start;background:var(--ink);color:var(--paper)}
.contact .info .mono{color:color-mix(in srgb,var(--paper) 60%,transparent)}
.contact .info a{text-decoration:none}
.contact .info a:hover{text-decoration:underline}
.contact .info .big{font:700 1.35rem var(--f-display)}
.contact .info .btn{justify-self:start}
.contact .info .btn:hover{text-decoration:none}
.lead-form{padding:40px;display:grid;gap:16px;align-content:start}
.lead-form h2{font-size:1.6rem}
.field{display:grid;gap:6px}
.field label{font:500 .72rem var(--f-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.field input,.field textarea{font:400 1rem var(--f-body);padding:12px 14px;border:1px solid var(--line);border-radius:var(--r);background:var(--paper);color:var(--ink);width:100%}
.field input:focus,.field textarea:focus{outline:2px solid var(--red);outline-offset:0;border-color:transparent}
.field .error{font-size:.85rem;color:var(--err-ink)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.agree{display:flex;gap:10px;align-items:flex-start;font-size:.85rem;color:var(--muted)}
.agree input{margin-top:4px;accent-color:var(--red);width:18px;height:18px;flex:none}
.hp{position:absolute;left:-9999px}
.note{font-size:.85rem;color:var(--muted)}
.alert{padding:12px 14px;border-radius:var(--r);font-weight:500}
.alert-ok{background:var(--ok);color:var(--ok-ink)}
.alert-err{background:var(--err);color:var(--err-ink)}
.map{border:0;width:100%;height:420px;border-radius:var(--r);background:var(--sky);display:block}
@media (max-width:820px){.contact{grid-template-columns:1fr}.contact .info,.lead-form{padding:28px 20px}}
@media (max-width:480px){.row2{grid-template-columns:1fr}}

/* detail pages */
.detail{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:48px;align-items:start}
.detail aside{position:sticky;top:96px;display:grid;gap:20px}
@media (max-width:960px){.detail{grid-template-columns:1fr}.detail aside{position:static}}
.gallery{display:grid;gap:12px}
.gallery .main{display:block;border-radius:var(--r);overflow:hidden;background:var(--sky)}
.gallery .main img{display:block;width:100%;height:auto;aspect-ratio:16/10;object-fit:cover}
.gallery .thumbs{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:12px}
.gallery .thumbs a{display:block;border-radius:4px;overflow:hidden;background:var(--sky)}
.gallery .thumbs img{display:block;width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;transition:opacity .2s}
.gallery .thumbs a:hover img{opacity:.8}
.spec{border:1.5px solid var(--ink);background:var(--surface);font-size:.95rem}
.spec caption{caption-side:top;text-align:left;padding:12px 16px;border-bottom:1.5px solid var(--ink);font:700 .95rem var(--f-display);background:var(--surface)}
.spec{width:100%;border-collapse:collapse}
.spec th,.spec td{padding:9px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.spec tr:last-child th,.spec tr:last-child td{border-bottom:0}
.spec th{font:500 .7rem var(--f-mono);letter-spacing:.07em;text-transform:uppercase;color:var(--muted);width:46%;padding-top:12px}
.spec td{font-variant-numeric:tabular-nums}
.price{display:grid;gap:4px;padding:20px;border-radius:var(--r);background:var(--red-soft)}
.price strong{font:700 1.5rem var(--f-display);color:var(--red)}
.plan{margin:0;border:1px solid var(--line);border-radius:var(--r);background:#fff;padding:16px}
.plan img{display:block;width:100%;height:auto}
.plan figcaption{margin-top:8px}
.side-card{padding:24px;border:1px solid var(--line);border-radius:var(--r);background:var(--surface);display:grid;gap:14px}
.side-list{list-style:none;margin:0;padding:0;display:grid}
.side-list a{display:block;padding:10px 0;border-bottom:1px solid var(--line);text-decoration:none;font-weight:500}
.side-list a:hover,.side-list a[aria-current="page"]{color:var(--red)}

/* rich text */
.prose{max-width:46em;display:grid;gap:1em}
.prose h2{font-size:1.45rem;margin-top:.6em}
.prose h3{font-size:1.1rem;margin-top:.4em}
.prose ul,.prose ol{margin:0;padding-left:1.3em;display:grid;gap:.4em}
.prose li::marker{color:var(--red)}
.prose a{color:var(--red)}
.prose img{border-radius:var(--r);height:auto}
.prose blockquote{margin:0;padding:4px 0 4px 18px;border-left:3px solid var(--red);color:var(--muted)}

/* cta band */
.cta-band{background:var(--red);color:var(--red-ink)}
.cta-band .wrap{display:flex;flex-wrap:wrap;gap:20px 40px;align-items:center;justify-content:space-between;padding-block:44px}
.cta-band h2{font-size:clamp(1.3rem,2.4vw,1.9rem);max-width:24em}
.cta-band .btn{background:var(--red-ink);color:var(--red)}
.cta-band .btn:hover{transform:translateY(-2px)}

/* footer */
.foot{border-top:1px solid var(--line);background:var(--surface);font-size:.92rem}
.foot .cols{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.2fr;gap:32px;padding-block:56px 32px}
.foot h3{font:500 .74rem var(--f-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
.foot ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.foot a{text-decoration:none}
.foot a:hover{color:var(--red)}
.foot .about-co{display:grid;gap:14px;color:var(--muted);align-content:start}
.foot .legal{border-top:1px solid var(--line);padding-block:20px;display:flex;flex-wrap:wrap;gap:8px 32px;justify-content:space-between;color:var(--muted);font-size:.82rem}
@media (max-width:900px){.foot .cols{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.foot .cols{grid-template-columns:1fr}}

/* lightbox */
.lightbox{border:0;padding:0;background:transparent;max-width:min(1400px,96vw);max-height:92vh}
.lightbox::backdrop{background:rgba(8,10,14,.9)}
.lightbox img{display:block;max-width:100%;max-height:86vh;margin:auto;border-radius:4px}
.lightbox .lb-bar{display:flex;justify-content:space-between;align-items:center;gap:12px;color:#fff;padding-top:10px;font:500 .8rem var(--f-mono)}
.lightbox button{background:rgba(255,255,255,.12);color:#fff;border:0;border-radius:var(--r);padding:8px 14px;font:600 .9rem var(--f-body);cursor:pointer}
.lightbox button:hover{background:rgba(255,255,255,.22)}

/* 404 */
.notfound{text-align:left;display:grid;gap:20px;padding-block:96px}
.notfound .code{font:800 clamp(4rem,14vw,9rem) var(--f-display);color:var(--red);line-height:1}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation:none!important;transition:none!important}
}