/* GlobalPaper — Swiss typographic style: black and white, red accents and hover states, numbered sections */
:root{--ink:#111;--mute:#5a5a5a;--line:#111;--soft:#f2f2f2;--red:#e30613;--paper:#fff;--pad:clamp(16px,4vw,48px)}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:88px}
body{font-family:'Golos Text','Helvetica Neue',Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.5;-webkit-font-smoothing:antialiased}
button,input,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
a{color:inherit}
img{display:block;max-width:100%;height:auto}
:focus-visible{outline:3px solid var(--red);outline-offset:3px}
.skip{position:absolute;left:-9999px;top:8px;z-index:99;background:#fff;padding:8px 12px;font-weight:700}
.skip:focus{left:var(--pad)}
.wrap{max-width:1440px;margin:0 auto;padding:0 var(--pad)}

/* header */
.top{position:sticky;top:0;z-index:50;background:var(--paper);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;gap:32px;min-height:72px;flex-wrap:wrap}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none}
.mark{width:34px;height:34px;border:2px solid var(--ink);border-radius:50%;display:inline-flex;align-items:center;justify-content:center;color:var(--red);font-weight:700;font-size:13px;letter-spacing:-.04em;flex:none}
.word{font-weight:500;font-size:19px;letter-spacing:.06em}
.word b{font-weight:700}
nav.main{display:flex;gap:28px;margin-left:auto}
nav.main a{font-size:15px;font-weight:500;text-decoration:none;padding:24px 0 21px;border-bottom:3px solid transparent}
nav.main a:hover{color:var(--red)}
nav.main a[aria-current=page]{border-bottom-color:var(--red)}
.lang{display:flex;border:1px solid var(--line)}
.lang a{font-size:13px;font-weight:700;text-decoration:none;padding:6px 10px}
.lang a[aria-current=true]{background:var(--ink);color:#fff}
.mbtn{display:none;font-size:14px;font-weight:700;padding:8px 0}

/* hero */
.hero{padding:clamp(48px,8vw,112px) 0 0;border-bottom:1px solid var(--line)}
.hero-foot p{color:var(--mute)}
.hero h1{font-size:clamp(40px,7vw,116px);font-weight:700;line-height:.98;letter-spacing:-.045em;max-width:13ch;hyphens:manual;overflow-wrap:break-word}
.hero-foot{display:flex;gap:32px;align-items:flex-end;justify-content:space-between;flex-wrap:wrap;margin-top:clamp(32px,5vw,64px)}
.hero-foot p{max-width:52ch;font-size:clamp(16px,1.4vw,19px);opacity:.92}
.facts{list-style:none;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin-top:clamp(40px,6vw,80px);border-top:1px solid var(--line)}
.facts li{padding:18px 16px 28px 0;border-right:1px solid #d6d6d6}
.facts li+li{padding-left:16px}
.facts li:last-child{border-right:0}
.facts b{display:block;font-size:clamp(24px,2.6vw,40px);font-weight:700;letter-spacing:-.04em;line-height:1.05}
.facts span{font-size:14px;color:var(--mute)}

/* buttons */
.btn{display:inline-block;padding:14px 22px;background:var(--ink);color:#fff;text-decoration:none;font-size:15px;font-weight:700;border:2px solid var(--ink)}
.btn:hover{background:var(--red);border-color:var(--red)}
.btn.inv{background:#fff;color:var(--ink);border-color:#fff}
.btn.inv:hover{background:var(--red);border-color:var(--red);color:#fff}
.btn.ghost{background:transparent;color:var(--ink)}
.btn.ghost:hover{background:var(--ink);color:#fff;border-color:var(--ink)}

/* sections */
.sec{padding:clamp(48px,6vw,88px) 0}
.shead{display:grid;grid-template-columns:minmax(80px,1fr) 5fr;column-gap:24px;align-items:baseline;border-top:3px solid var(--line);padding-top:16px;margin-bottom:clamp(28px,4vw,48px)}
.shead .num{font-size:clamp(32px,4vw,56px);font-weight:700;color:var(--red);letter-spacing:-.05em;line-height:1}
.shead h2{font-size:clamp(28px,3.6vw,52px);font-weight:700;letter-spacing:-.04em;line-height:1.02}
.shead p{grid-column:2;margin-top:10px;color:var(--mute);max-width:60ch}
.after{margin-top:32px;display:flex;gap:12px;flex-wrap:wrap}

/* index list (home catalogue) */
.index{list-style:none;border-bottom:1px solid var(--line)}
.irow{display:grid;grid-template-columns:minmax(80px,1fr) 2fr 3fr 40px;column-gap:24px;align-items:baseline;padding:22px 0;border-top:1px solid var(--line);text-decoration:none;transition:background .15s,padding .15s}
.inum{font-weight:700;color:var(--mute);font-size:15px}
.iname{font-size:clamp(22px,2.4vw,34px);font-weight:700;letter-spacing:-.03em;line-height:1.1}
.idesc{color:var(--mute)}
.idesc small{display:block;margin-top:6px;font-size:13px;font-weight:700;color:var(--ink)}
.iarr{font-size:28px;font-weight:700;justify-self:end;transition:transform .15s}
.irow:hover{background:var(--soft)}
.irow:hover .iname,.irow:hover .iarr{color:var(--red)}
.irow:hover .iarr{transform:translateX(6px)}

/* tiles (advantages) */
.tiles{list-style:none;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--line);border-left:1px solid var(--line);counter-reset:t}
.tiles li{border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:24px 24px 36px;counter-increment:t;min-height:200px}
.tiles li::before{content:counter(t,decimal-leading-zero);display:block;font-weight:700;color:var(--red);margin-bottom:28px}
.tiles h3{font-size:22px;font-weight:700;letter-spacing:-.03em;line-height:1.15;margin-bottom:8px}
.tiles p{color:var(--mute)}
.tiles li:hover h3{color:var(--red)}

/* steps */
.steps{list-style:none;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));column-gap:24px}
.steps li{border-top:1px solid var(--line);padding-top:16px}
.steps span{display:block;font-size:clamp(48px,5vw,80px);font-weight:700;letter-spacing:-.05em;line-height:1;color:#fff;-webkit-text-stroke:1.5px var(--ink);margin-bottom:20px;transition:color .2s,-webkit-text-stroke-color .2s}
.steps li:hover span{color:var(--red);-webkit-text-stroke-color:var(--red)}
.steps h3{font-size:19px;font-weight:700;margin-bottom:6px}
.steps p{color:var(--mute);font-size:15px}

/* long text */
.prose p{max-width:66ch;margin-bottom:14px}
.prose h2,.prose h3{font-size:20px;font-weight:700;letter-spacing:-.02em;margin:28px 0 10px;break-after:avoid}
.prose ul{margin:0 0 14px;padding-left:20px;max-width:66ch}
.prose li{margin-bottom:6px}
.prose li::marker{color:var(--red)}
.prose .btn{margin-top:16px}
.prose a:not(.btn){color:var(--ink);text-decoration-color:var(--red);text-underline-offset:3px}
.prose a:not(.btn):hover{color:var(--red)}
.prose.cols{columns:2 340px;column-gap:48px}
.prose.cols>*{break-inside:avoid}
.prose.cols .btn{break-before:avoid}

/* dark contact band */
.band{background:var(--ink);color:#fff;padding:clamp(48px,6vw,88px) 0}
.band h2{font-size:clamp(36px,5vw,72px);font-weight:700;letter-spacing:-.05em;line-height:1;margin-bottom:32px}
.band .phones{margin-bottom:32px}
.band .phones a:first-of-type{font-size:clamp(20px,2vw,28px)}
.band .ic a{border-color:#fff;color:#fff}

/* page head */
.phead{padding:clamp(24px,3vw,40px) 0 clamp(32px,4vw,56px);border-bottom:1px solid var(--line)}
.crumbs{font-size:13px;color:var(--mute);margin-bottom:clamp(24px,4vw,56px)}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px}
.crumbs li+li::before{content:"/";margin-right:8px}
.crumbs a{text-decoration:none}
.crumbs a:hover{color:var(--red)}
.phead h1{font-size:clamp(36px,5.4vw,84px);font-weight:700;line-height:.98;letter-spacing:-.05em;max-width:18ch;hyphens:manual;overflow-wrap:break-word}
.phead .intro{margin-top:20px;font-size:clamp(16px,1.4vw,19px);color:var(--mute);max-width:60ch}
.jump{list-style:none;display:flex;flex-wrap:wrap;gap:10px;margin-top:32px}
.jump a{display:inline-block;font-size:14px;font-weight:700;text-decoration:none;padding:8px 14px;border:1px solid var(--line)}
.jump a:hover{border-color:var(--red);color:var(--red)}

/* product articles: number | text | photo */
.prod{display:grid;grid-template-columns:minmax(80px,1fr) 3fr 2fr;column-gap:24px;border-top:1px solid var(--line);padding:24px 0 64px;scroll-margin-top:88px}
.pnum{font-size:clamp(32px,3.6vw,52px);font-weight:700;letter-spacing:-.05em;line-height:1;color:var(--red)}
.prod h3{font-size:clamp(24px,2.4vw,36px);font-weight:700;letter-spacing:-.035em;line-height:1.08}
.model{font-weight:700;color:var(--red);margin-top:6px}
.key{margin:16px 0;font-size:14px;color:var(--mute)}
.key b{font-size:clamp(28px,2.8vw,40px);font-weight:700;letter-spacing:-.04em;color:var(--ink);margin-right:4px}
.prod .lead{font-size:17px}
.prod h4{font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;margin:24px 0 8px;color:var(--mute)}
.prod p,.prod ul{max-width:62ch;margin-bottom:12px}
.prod ul{padding-left:20px}
.prod li{margin-bottom:4px}
.prod li::marker{color:var(--red)}
.pimg{position:sticky;top:96px;align-self:start;background:var(--soft);aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;overflow:hidden}
.pimg img{width:100%;height:100%;object-fit:contain;mix-blend-mode:multiply}
.pimg.cover img{object-fit:cover;mix-blend-mode:normal}
.sd{margin:28px 0 24px;border-top:2px solid var(--line);border-bottom:1px solid var(--line)}
.sd summary{cursor:pointer;font-weight:700;padding:14px 0;list-style:none;display:flex;justify-content:space-between;gap:16px}
.sd summary::-webkit-details-marker{display:none}
.sd summary::after{content:"+";font-weight:700;font-size:22px;line-height:1;color:var(--red)}
.sd[open] summary::after{content:"−"}
.sd summary:hover{color:var(--red)}
.tw{overflow-x:auto;margin:0 0 16px}
.spec{width:100%;border-collapse:collapse;font-size:15px}
.spec th,.spec td{text-align:left;padding:11px 16px 11px 0;border-top:1px solid #d6d6d0;font-weight:400;vertical-align:top;line-height:1.35;overflow-wrap:break-word}
.spec th{color:var(--mute)}
.spec th[scope=row]{width:36%}
.spec thead th{font-weight:700;color:var(--ink)}
.spec thead td{border-top:0;font-size:13px;color:var(--mute)}

/* photos: one treatment site-wide (grayscale, colour on hover; touch screens always colour) */
@media(hover:hover){
  .pimg img{filter:grayscale(1) contrast(1.05);transition:filter .25s}
  .prod:hover .pimg img{filter:none}
}

/* two-column pages */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,2fr);gap:48px}
.facts-col p{margin-bottom:20px;font-size:15px}
.cinfo p{margin-bottom:16px}
.cinfo a{text-decoration:none;border-bottom:1px solid currentColor}
.cinfo .phones a,.cinfo .ic a{border-bottom:0}
.mute{color:var(--mute);font-size:14px}

/* phones + messenger icons */
.phones{list-style:none;margin-bottom:16px}
.phones li{display:flex;align-items:center;gap:12px;margin-bottom:10px;flex-wrap:wrap}
.phones .cn{font-size:13px;color:var(--mute);min-width:88px}
.band .phones .cn{color:rgba(255,255,255,.7)}
.phones li>a:first-of-type{font-weight:700;font-size:18px;text-decoration:none}
.ic{display:inline-flex;gap:6px}
.ic a{width:34px;height:34px;border:1px solid var(--ink);display:inline-flex;align-items:center;justify-content:center;text-decoration:none;color:inherit}
.ic a:hover{background:var(--red);border-color:var(--red);color:#fff}
.ic svg{width:18px;height:18px}

/* form */
#cform{background:var(--soft);padding:clamp(20px,3vw,40px)}
#cform h2{font-size:clamp(24px,2.4vw,34px);font-weight:700;letter-spacing:-.03em;margin-bottom:20px}
#cform label{display:block;font-size:13px;color:var(--mute);margin-bottom:18px}
#cform input,#cform textarea{display:block;width:100%;margin-top:4px;padding:8px 0;border:0;border-bottom:1px solid var(--ink);border-radius:0;background:transparent;font-size:17px;color:var(--ink);resize:vertical}
#cform input:focus,#cform textarea:focus{outline:0;border-bottom:3px solid var(--red);padding-bottom:6px}
.hp{position:absolute!important;left:-9999px;opacity:0;height:0;width:0}
#fstat{margin-top:12px;font-size:14px;min-height:1.4em}

/* footer */
.foot{border-top:3px solid var(--line);padding:32px 0 48px;font-size:14px;color:var(--mute)}
.fgrid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.foot .logo{color:var(--ink);margin-bottom:12px}
.foot nav{display:flex;flex-direction:column;gap:6px}
.foot nav a{text-decoration:none;color:var(--ink)}
.foot nav a:hover{color:var(--red)}
.foot .phones li>a:first-of-type{font-size:15px;font-weight:500;color:var(--ink)}

/* floating messenger buttons */
.fab{position:fixed;right:16px;bottom:16px;z-index:60;display:flex;flex-direction:column;gap:8px}
.fab a{width:52px;height:52px;display:flex;align-items:center;justify-content:center;background:var(--ink);color:#fff;text-decoration:none}
.fab a{box-shadow:0 0 0 2px #fff}
.fab a:hover{background:var(--red)}
.fab svg{width:26px;height:26px}
@media print{.fab{display:none}}

@media(max-width:1000px){
  .bar{gap:16px}
  nav.main{order:4;width:100%;margin-left:0;flex-direction:column;gap:0;padding-bottom:12px}
  nav.main a{padding:10px 0;border-bottom:1px solid #ddd}
  nav.main a[aria-current=page]{border-bottom-color:var(--red)}
  .js nav.main{display:none}
  .js nav.main.open{display:flex}
  .js .mbtn{display:block;margin-left:auto}
  .facts{grid-template-columns:repeat(2,minmax(0,1fr))}
  .facts li:nth-child(2){border-right:0}
  .facts li:nth-child(3){padding-left:0}
  .tiles,.steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{row-gap:32px}
  .irow{grid-template-columns:48px 1fr 32px}
  .idesc{grid-column:2;grid-row:2;margin-top:6px}
  .iarr{grid-column:3;grid-row:1}
  .prod{grid-template-columns:minmax(56px,1fr) 5fr}
  .pimg{grid-column:2;grid-row:1;position:static;margin-bottom:20px;aspect-ratio:4/3}
  .ptext{grid-column:2}
  .split{grid-template-columns:1fr}
  .fgrid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:640px){
  .facts,.tiles,.steps{grid-template-columns:1fr}
  .facts li{border-right:0;padding-left:0!important}
  .facts li+li{border-top:1px solid #d6d6d6}
  .shead{grid-template-columns:1fr}
  .shead p{grid-column:1}
  .prod{grid-template-columns:1fr}
  .pnum,.pimg,.ptext{grid-column:1}
  .pnum{grid-row:auto;margin-bottom:8px;font-size:28px}
  .pimg{grid-row:auto}
  .spec{font-size:13px}
  .fgrid{grid-template-columns:1fr}
  .foot{padding-bottom:140px}
  .phones .cn{min-width:0;width:100%}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* grid children must be allowed to shrink, otherwise wide spec tables push the page wider than the screen */
.prod>*,.split>*,.irow>*,.shead>*,.fgrid>*{min-width:0}
@media(max-width:640px){
  .bar{gap:12px;min-height:64px}
  .word{font-size:16px;letter-spacing:.04em}
  .mark{width:30px;height:30px;font-size:12px}
  .lang a{padding:5px 8px}
}
@media(max-width:360px){.bar{gap:8px}.word{font-size:14px;letter-spacing:.02em}.lang a{padding:5px 6px}}

/* five languages do not fit next to the logo on phones: show them inside the opened menu */
@media(max-width:760px){
  .lang{order:5;margin:4px 0 16px}
  .js .lang{display:none}
  .js nav.main.open~.lang{display:flex}
}