:root{
  --accent:#b95827; --accent-2:#d9743c; --dark:#4b4b54; --darker:#2f353c; --light:#f2f2f1; --text:#3f4348;
  --ease:cubic-bezier(.22,.8,.24,1); --r:22px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:70px}
body{font-family:"IBM Plex Sans",system-ui,sans-serif;color:var(--text);background:#fff;line-height:1.55;overflow-x:hidden;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
ul{list-style:none}
.container{width:min(1400px,100% - 64px);margin-inline:auto}
.center{text-align:center;margin-top:54px}
body.is-loading{overflow:hidden}

/* Прелоадер */
.preloader{position:fixed;inset:0;z-index:100;background:var(--dark);display:grid;place-items:center;transition:transform .9s var(--ease) .1s,visibility 0s 1s}
.preloader.is-done{transform:translateY(-100%);visibility:hidden}
.preloader__inner{display:grid;gap:26px;justify-items:center;transition:opacity .4s}
.preloader.is-done .preloader__inner{opacity:0}
.preloader__logo{width:240px;animation:pulse 1.6s ease-in-out infinite}
.preloader__bar{width:200px;height:3px;background:rgba(255,255,255,.15);border-radius:3px;overflow:hidden}
.preloader__bar span{display:block;height:100%;width:100%;background:var(--accent);transform-origin:left;animation:load 1.3s var(--ease) forwards}
@keyframes load{from{transform:scaleX(0)}to{transform:scaleX(1)}}
@keyframes pulse{50%{opacity:.55;transform:scale(.97)}}

.progress{position:fixed;top:0;left:0;height:3px;width:100%;background:linear-gradient(90deg,var(--accent),var(--accent-2));transform-origin:left;transform:scaleX(0);z-index:60}
.cursor-glow{position:fixed;width:420px;height:420px;border-radius:50%;pointer-events:none;z-index:1;left:0;top:0;
  background:radial-gradient(circle,rgba(185,88,39,.07),transparent 65%);transform:translate(-50%,-50%);opacity:0;transition:opacity .4s;mix-blend-mode:multiply}
.cursor-glow.on{opacity:1}

/* Шапка */
.header{position:fixed;inset:0 0 auto;z-index:50;padding:22px 0;transition:transform .5s var(--ease),background .4s,padding .4s,box-shadow .4s}
.header.is-scrolled{background:rgba(75,75,84,.88);backdrop-filter:blur(14px);padding:12px 0;box-shadow:0 8px 30px rgba(0,0,0,.18)}
.header.is-hidden{transform:translateY(-100%)}
.header__row{display:flex;align-items:center;justify-content:space-between;gap:30px}
.logo img{height:46px;width:auto;transition:height .4s var(--ease),transform .4s var(--ease)}
.is-scrolled .logo img{height:38px}
.logo:hover img{transform:scale(1.04)}
.nav{display:flex;gap:44px;margin-inline:auto}
.nav__link{position:relative;color:#fff;font-weight:500;font-size:17px;padding:6px 0}
.nav__link::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;background:var(--accent-2);transform:scaleX(0);transform-origin:right;transition:transform .45s var(--ease)}
.nav__link:hover::after,.nav__link.is-active::after{transform:scaleX(1);transform-origin:left}
.burger{display:none;width:44px;height:44px;position:relative;z-index:3}
.burger span{position:absolute;left:10px;right:10px;height:2px;background:#fff;border-radius:2px;transition:transform .4s var(--ease),opacity .3s,top .4s var(--ease)}
.burger span:nth-child(1){top:14px}.burger span:nth-child(2){top:21px}.burger span:nth-child(3){top:28px}
.burger.is-open span:nth-child(1){top:21px;transform:rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0;transform:translateX(14px)}
.burger.is-open span:nth-child(3){top:21px;transform:rotate(-45deg)}

/* Hero */
.hero{position:relative;min-height:100vh;min-height:100svh;display:flex;align-items:center;color:#fff;overflow:hidden;background:var(--darker)}
.hero__bg{position:absolute;inset:-6%;background:url(img/hero.jpg) center/cover;animation:kenburns 22s ease-in-out infinite alternate;will-change:transform}
@keyframes kenburns{from{scale:1.02}to{scale:1.14;translate:-1.5% -1%}}
.hero__shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(47,53,60,.82),rgba(47,53,60,.35) 60%,rgba(47,53,60,.55)),linear-gradient(180deg,rgba(0,0,0,.35),transparent 30%)}
.hero__lines{position:absolute;inset:0;pointer-events:none;display:flex;justify-content:space-around;opacity:.5}
.hero__lines i{width:1px;height:100%;background:linear-gradient(transparent,rgba(255,255,255,.18),transparent);transform:scaleY(0);transform-origin:top;animation:line 2s var(--ease) forwards;animation-delay:calc(var(--i,0)*.25s + 1.4s)}
.hero__lines i:nth-child(2){--i:1}.hero__lines i:nth-child(3){--i:2}.hero__lines i:nth-child(4){--i:3}
@keyframes line{to{transform:scaleY(1)}}
.hero__content{position:relative;z-index:2;padding-top:90px}
.hero__title{font-size:clamp(64px,11.5vw,168px);line-height:1;font-weight:800;letter-spacing:-.02em;margin-bottom:34px;display:flex;flex-wrap:wrap;gap:0 .28em}
.word{display:inline-flex;overflow:hidden;padding-bottom:.08em}
.char{display:inline-block;transform:translateY(110%) rotate(8deg);opacity:0;animation:charIn .9s var(--ease) forwards;animation-delay:calc(var(--n)*70ms + var(--base,0ms))}
@keyframes charIn{to{transform:none;opacity:1}}
.hero__sub{max-width:760px;font-size:clamp(18px,1.6vw,23px);color:rgba(255,255,255,.82);margin-bottom:38px}
.hero__edge{position:absolute;left:0;right:0;bottom:0;height:11px;background:var(--accent);transform:scaleX(0);transform-origin:left;animation:line 1.4s var(--ease) 1s forwards;animation-name:edge}
@keyframes edge{to{transform:scaleX(1)}}
.scroll-hint{position:absolute;left:50%;bottom:36px;width:26px;height:44px;border:2px solid rgba(255,255,255,.65);border-radius:16px;transform:translateX(-50%);z-index:2}
.scroll-hint span{position:absolute;left:50%;top:8px;width:4px;height:8px;margin-left:-2px;border-radius:2px;background:#fff;animation:wheel 1.8s infinite}
@keyframes wheel{0%{opacity:0;transform:translateY(0)}30%{opacity:1}100%{opacity:0;transform:translateY(16px)}}

/* Кнопки */
.btn{position:relative;display:inline-flex;align-items:center;gap:12px;padding:20px 36px;border-radius:999px;font-weight:600;font-size:17px;overflow:hidden;isolation:isolate;transition:transform .35s var(--ease),box-shadow .35s,background .3s,border-color .3s}
.btn svg{transition:transform .4s var(--ease)}
.btn:hover svg{transform:translateX(6px)}
.btn--primary{background:var(--accent);color:#fff;box-shadow:0 12px 30px -10px rgba(185,88,39,.8)}
.btn--primary:hover{background:var(--accent-2);box-shadow:0 18px 38px -10px rgba(185,88,39,.9)}
.btn--primary::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(110deg,transparent 30%,rgba(255,255,255,.4) 50%,transparent 70%);transform:translateX(-120%);transition:transform .8s var(--ease)}
.btn--primary:hover::before{transform:translateX(120%)}
.btn--primary{animation:ring 2.8s ease-out 3s infinite}
@keyframes ring{0%{box-shadow:0 12px 30px -10px rgba(185,88,39,.8),0 0 0 0 rgba(185,88,39,.5)}70%,100%{box-shadow:0 12px 30px -10px rgba(185,88,39,.8),0 0 0 22px rgba(185,88,39,0)}}
.btn--ghost{border:2px solid rgba(185,88,39,.7);color:rgba(255,255,255,.9)}
.btn--ghost::before{content:"";position:absolute;inset:0;z-index:-1;background:var(--accent);transform:scaleY(0);transform-origin:bottom;transition:transform .45s var(--ease)}
.btn--ghost:hover::before{transform:scaleY(1)}

/* Секции и заголовки */
.section{padding:120px 0;position:relative}
.section--dark{background:var(--dark);color:#fff}
.title{font-size:clamp(36px,4.6vw,66px);line-height:1.05;font-weight:800;color:var(--dark);letter-spacing:-.01em;text-transform:uppercase}
.title--accent{color:var(--accent)}.title--light{color:#fff}
.title__line{display:block;position:relative;width:fit-content}
.title__line--accent{color:var(--accent)}
.title::after{content:"";display:block;height:5px;width:90px;margin-top:22px;border-radius:4px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform 1s var(--ease) .35s}
.title.is-in::after{transform:scaleX(1)}

/* Reveal */
.reveal{opacity:0;transform:translateY(46px);transition:opacity .9s var(--ease),transform .9s var(--ease);transition-delay:calc(var(--d,0)*1ms)}
.reveal[data-anim=left]{transform:translateX(-60px)}
.reveal.is-in{opacity:1;transform:none}
.title.reveal{opacity:1;transform:none}
.title.reveal .title__line{clip-path:inset(0 100% 0 0);transform:translateX(-30px);transition:clip-path 1.1s var(--ease),transform 1.1s var(--ease)}
.title.reveal.is-in .title__line{clip-path:inset(-10% -5% -30% 0);transform:none}
.title.reveal .title__line:nth-child(2){transition-delay:.15s}

/* О нас */
.about{background:var(--light)}
.about__grid{display:grid;grid-template-columns:5fr 7fr;gap:60px;align-items:start}
.about__text p{font-size:clamp(18px,1.55vw,23px);font-weight:500;color:#4d5157;margin-bottom:34px}
.stats{display:grid;grid-template-columns:repeat(4,auto);justify-content:space-between;margin-top:60px}
.stat{text-align:center;padding:10px 40px;position:relative}
.stat+.stat::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:2px;background:var(--accent);transform:scaleY(0);transition:transform .9s var(--ease) .5s}
.stat.is-in+.stat::before{transform:scaleY(1)}
.stat__num{display:block;font-size:clamp(46px,5.6vw,84px);font-weight:800;color:var(--accent);line-height:1.1;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.stat span{font-weight:500;font-size:19px;color:#4d5157}

/* Услуги */
.services{overflow:hidden;padding-bottom:90px}
.services__head{display:grid;grid-template-columns:1fr auto;gap:12px 30px;align-items:end;margin-bottom:56px}
.services__head .title{grid-column:1}
.services__goal{grid-column:1;font-size:20px;font-weight:500;color:#6b7076;max-width:620px}
.arrows{grid-column:2;grid-row:1 / span 2;display:flex;gap:12px}
.arrow{width:58px;height:58px;border-radius:50%;border:2px solid #d4d5d6;display:grid;place-items:center;color:var(--dark);transition:all .35s var(--ease)}
.arrow:hover{background:var(--accent);border-color:var(--accent);color:#fff;transform:scale(1.08)}
.svc-track{display:flex;gap:36px;overflow-x:auto;padding:10px max(32px,calc((100vw - 1400px)/2 + 0px)) 20px;scroll-snap-type:x proximity;scroll-padding-inline:max(32px,calc((100vw - 1400px)/2));scrollbar-width:none;cursor:grab}
.svc-track::-webkit-scrollbar{display:none}
.svc-track.is-drag{cursor:grabbing;scroll-snap-type:none;scroll-behavior:auto}
.svc{flex:0 0 clamp(290px,31vw,446px);scroll-snap-align:start;user-select:none}
.svc__img{position:relative;border-radius:var(--r);overflow:hidden;aspect-ratio:446/320;box-shadow:0 18px 40px -22px rgba(0,0,0,.5);transition:transform .6s var(--ease),box-shadow .6s}
.svc__img img{width:100%;height:100%;object-fit:cover;transition:transform 1.1s var(--ease);pointer-events:none;-webkit-user-drag:none}
.svc__img::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(47,53,60,.6));opacity:0;transition:opacity .5s}
.svc__num{position:absolute;z-index:2;left:20px;bottom:14px;color:#fff;font-weight:800;font-size:38px;opacity:0;transform:translateY(16px);transition:all .5s var(--ease)}
.svc:hover .svc__img{transform:translateY(-8px);box-shadow:0 30px 50px -22px rgba(0,0,0,.55)}
.svc:hover .svc__img img{transform:scale(1.12) rotate(.6deg)}
.svc:hover .svc__img::after{opacity:1}
.svc:hover .svc__num{opacity:1;transform:none}
.svc h3{font-size:22px;line-height:1.3;font-weight:600;color:var(--dark);margin-top:22px;transition:color .3s}
.svc:hover h3{color:var(--accent)}
.svc p{margin-top:8px;color:#6b7076;font-size:16px}
.svc-progress{height:3px;background:#e4e4e2;border-radius:3px;margin-top:30px;overflow:hidden}
.svc-progress span{display:block;height:100%;width:30%;background:var(--accent);border-radius:3px;transition:margin-left .15s linear}

/* Проекты */
.projects{padding-top:140px}
.projects__stripe{position:absolute;top:0;left:0;right:0;height:11px;background:var(--accent)}
.filters{display:flex;flex-wrap:wrap;gap:12px;margin:48px 0 40px}
.chip{padding:12px 24px;border-radius:999px;font-size:15px;font-weight:500;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);color:rgba(255,255,255,.75);transition:all .35s var(--ease)}
.chip:hover{background:rgba(255,255,255,.14);transform:translateY(-3px);color:#fff}
.chip.is-active{background:var(--accent);border-color:var(--accent);color:#fff;box-shadow:0 10px 24px -8px rgba(185,88,39,.9)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{position:relative;display:block;aspect-ratio:450/338;border-radius:var(--r);overflow:hidden;background:var(--darker);transform-style:preserve-3d;transition:transform .5s var(--ease),opacity .5s var(--ease),box-shadow .5s;will-change:transform}
.card.is-hidden{display:none}
.card.pop{animation:pop .7s var(--ease) both;animation-delay:calc(var(--i)*70ms)}
@keyframes pop{from{opacity:0;transform:translateY(40px) scale(.92)}}
.card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease),filter .6s}
.card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,0) 45%,rgba(30,33,38,.88));transition:opacity .5s}
.card:hover{box-shadow:0 30px 60px -20px rgba(0,0,0,.7)}
.card:hover img{transform:scale(1.1)}
.card .tag{position:absolute;z-index:2;top:16px;left:16px;background:var(--accent);color:#fff;font-size:13px;font-weight:600;padding:5px 14px;border-radius:999px;transition:transform .4s var(--ease)}
.card:hover .tag{transform:translateY(-4px) scale(1.05)}
.card__info{position:absolute;z-index:2;left:20px;right:20px;bottom:20px;transition:transform .5s var(--ease)}
.card:hover .card__info{transform:translateY(-10px)}
.card h3{font-size:21px;line-height:1.25;color:#fff;font-weight:700}
.card p{margin-top:8px;font-size:13px;color:rgba(255,255,255,.65);display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.card__info::after{content:"";display:block;height:2px;width:0;background:var(--accent-2);margin-top:10px;transition:width .6s var(--ease)}
.card:hover .card__info::after{width:70px}
.ic{display:inline-block;width:14px;height:14px;background:currentColor;-webkit-mask:var(--m) center/contain no-repeat;mask:var(--m) center/contain no-repeat;margin-right:-2px}
.ic--pin{--m:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2'%3E%3Cpath d='M12 22s7-6.5 7-12a7 7 0 0 0-14 0c0 5.500 7 12 7 12z'/%3E%3Ccircle cx='12' cy='10' r='2.500'/%3E%3C/svg%3E")}
.ic--cal{--m:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2'%3E%3Crect x='3' y='5' width='18' height='16' rx='2'/%3E%3Cpath d='M3 10h18M8 3v4M16 3v4'/%3E%3C/svg%3E");margin-left:10px}
.ic--phone{--m:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2'%3E%3Cpath d='M5 3h4l2 5-2.500 1.500a11 11 0 0 0 6 6L16 13l5 2v4a2 2 0 0 1-2 2A16 16 0 0 1 3 5a2 2 0 0 1 2-2z'/%3E%3C/svg%3E")}
.ic--mail{--m:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2'%3E%3Crect x='3' y='5' width='18' height='14' rx='2'/%3E%3Cpath d='m3 7 9 6 9-6'/%3E%3C/svg%3E")}

/* Партнёры */
.partners{background:#fff}
.logos{display:grid;grid-template-columns:repeat(5,1fr);gap:50px 40px;margin-top:70px;align-items:center}
.logo-item{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;min-height:150px;text-align:center;transition:transform .5s var(--ease),filter .5s,opacity .5s}
.logo-item img{max-height:130px;max-width:100%;width:auto;object-fit:contain}
.logo-item figcaption{font-size:13px;color:#777}
.logos:hover .logo-item{filter:grayscale(1);opacity:.45}
.logos .logo-item:hover{filter:none;opacity:1;transform:translateY(-10px) scale(1.07)}
.logo-ph{display:flex;align-items:center;gap:12px;color:#1d4e89;border:2px dashed #b6c4d6;padding:20px 22px;border-radius:14px}
.logo-ph b{font-size:24px;letter-spacing:.02em;font-weight:800}

/* Преимущества */
.adv__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:64px;align-items:stretch}
.adv-card{position:relative;background:var(--light);color:var(--dark);border-radius:22px;padding:30px 28px 44px;overflow:hidden;transition:transform .5s var(--ease),box-shadow .5s}
.adv-card::after{content:"";position:absolute;left:0;right:0;bottom:0;height:6px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .6s var(--ease)}
.adv-card:hover{transform:translateY(-12px);box-shadow:0 30px 50px -22px rgba(0,0,0,.6)}
.adv-card:hover::after{transform:scaleX(1)}
.adv-ic{width:54px;height:54px;color:var(--dark);margin-bottom:18px;transition:transform .6s var(--ease)}
.adv-ic .acc{stroke:var(--accent)}
.adv-card:hover .adv-ic{transform:scale(1.15) rotate(-6deg)}
.adv-card h3{font-size:20px;font-weight:600;margin-bottom:18px}
.adv-card li{position:relative;padding-left:22px;margin-bottom:12px;font-size:15px;color:#666b71;line-height:1.5}
.adv-card li::before{content:"";position:absolute;left:0;top:.7em;width:12px;height:2px;background:var(--accent);transition:width .4s var(--ease)}
.adv-card:hover li::before{width:16px}

/* Аттестаты */
.certs{background:var(--light)}
.certs__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:64px}
.cert{display:flex;flex-direction:column;background:#fff;border-radius:20px;padding:30px 28px;box-shadow:0 8px 30px -14px rgba(0,0,0,.15);transition:transform .5s var(--ease),box-shadow .5s}
.cert:hover{transform:translateY(-10px) rotate(-.4deg);box-shadow:0 30px 50px -22px rgba(0,0,0,.3)}
.cert-ic{width:48px;height:48px;color:var(--dark);margin-bottom:22px;transition:transform .5s var(--ease),color .3s}
.cert:hover .cert-ic{transform:rotateY(180deg);color:var(--accent)}
.cert h3{font-size:20px;font-weight:600;color:var(--dark)}
.cert__kind{display:block;margin:12px 0 18px;font-size:13px;font-weight:600;letter-spacing:.04em;color:var(--accent)}
.cert p{font-size:15px;color:#6a6e74;margin-bottom:26px}
.dl{margin-top:auto;display:inline-flex;align-items:center;gap:8px;color:var(--accent);font-weight:600;font-size:15px}
.dl::before{content:"";width:16px;height:16px;background:currentColor;-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2.500' stroke-linecap='round'%3E%3Cpath d='M12 4v12M6 11l6 6 6-6M5 21h14'/%3E%3C/svg%3E") center/contain no-repeat;transition:transform .4s var(--ease)}
.dl:hover::before{animation:bounce .7s ease infinite}
@keyframes bounce{50%{transform:translateY(4px)}}

/* Отзывы */
.reviews{overflow:hidden}
.slider{margin-top:56px}
.slides{display:flex;gap:40px;transition:transform .9s var(--ease);padding-inline:max(32px,calc((100vw - 1400px)/2));will-change:transform}
.slide{flex:0 0 min(1080px,86vw);background:#efefef;border-radius:34px;padding:56px 48px 40px;position:relative;opacity:.45;transform:scale(.96);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.slide.is-current{opacity:1;transform:none}
.quote{width:38px;color:rgba(185,88,39,.28);margin-bottom:28px}
.slide p{font-size:clamp(16px,1.35vw,19px);line-height:1.95;color:#555a60}
.slide footer{display:flex;align-items:center;gap:16px;margin-top:34px}
.slide footer img{width:50px;height:50px;border-radius:50%;object-fit:contain;background:#fff;padding:3px;box-shadow:0 2px 8px rgba(0,0,0,.1)}
.slide footer b{display:block;font-size:17px;color:var(--dark)}
.slide footer span{font-size:14px;color:#999}
.dots{display:flex;justify-content:center;gap:10px;margin-top:34px}
.dot{width:10px;height:10px;border-radius:10px;background:#d5d5d5;transition:width .5s var(--ease),background .4s}
.dot.is-active{width:40px;background:var(--accent)}

/* Футер */
.footer{position:relative;background:var(--dark);color:#fff;padding:90px 0 0;overflow:hidden}
.footer__mark{position:absolute;right:4%;bottom:-60px;width:min(330px,28vw);opacity:.9;will-change:transform}
.footer__grid{position:relative;display:grid;grid-template-columns:1.5fr .8fr 1.2fr 1fr;gap:50px;padding-right:min(24vw,300px);padding-bottom:70px}
.footer__logo{height:56px;width:auto;margin-bottom:26px}
.footer__brand p{color:rgba(255,255,255,.5);font-size:15px;max-width:380px;margin-bottom:30px}
.contacts li{display:flex;align-items:center;gap:10px;margin-bottom:14px;font-size:17px}
.contacts .ic{color:var(--accent-2);width:18px;height:18px;flex:none}
.contacts small{color:rgba(255,255,255,.45);font-size:12px}
.contacts a{transition:color .3s}.contacts a:hover{color:var(--accent-2)}
.contacts .muted{color:rgba(255,255,255,.55);font-size:16px}
.footer__col h4{font-size:14px;letter-spacing:.12em;text-transform:uppercase;margin-bottom:24px;font-weight:700}
.footer__col a{display:block;position:relative;width:fit-content;color:rgba(255,255,255,.5);font-size:15px;margin-bottom:14px;transition:color .3s,transform .4s var(--ease)}
.footer__col a:hover{color:#fff;transform:translateX(8px)}
.footer__bottom{position:relative;padding:22px 0;border-top:1px solid rgba(255,255,255,.1);font-size:13px;color:rgba(255,255,255,.4)}

.totop{position:fixed;right:28px;bottom:28px;width:54px;height:54px;border-radius:50%;background:var(--accent);color:#fff;display:grid;place-items:center;z-index:40;box-shadow:0 12px 28px -8px rgba(185,88,39,.8);opacity:0;transform:translateY(30px) scale(.6);pointer-events:none;transition:all .5s var(--ease)}
.totop.on{opacity:1;transform:none;pointer-events:auto}
.totop:hover{transform:translateY(-5px)}

/* Адаптив */
@media (max-width:1100px){
  .adv__grid,.certs__grid{grid-template-columns:repeat(2,1fr)}
  .logos{grid-template-columns:repeat(3,1fr)}
  .grid{grid-template-columns:repeat(2,1fr)}
  .footer__grid{grid-template-columns:1fr 1fr;padding-right:0}
  .footer__mark{opacity:.35}
}
@media (max-width:820px){
  .container{width:calc(100% - 40px)}
  .section{padding:80px 0}
  .burger{display:block}
  .nav{position:fixed;inset:0;flex-direction:column;justify-content:center;align-items:center;gap:30px;background:var(--darker);clip-path:circle(0 at calc(100% - 42px) 42px);transition:clip-path .8s var(--ease);margin:0}
  .nav.is-open{clip-path:circle(150% at calc(100% - 42px) 42px)}
  .nav__link{font-size:30px;opacity:0;transform:translateY(24px);transition:opacity .5s,transform .6s var(--ease)}
  .nav.is-open .nav__link{opacity:1;transform:none}
  .nav.is-open .nav__link:nth-child(1){transition-delay:.25s}.nav.is-open .nav__link:nth-child(2){transition-delay:.33s}.nav.is-open .nav__link:nth-child(3){transition-delay:.41s}.nav.is-open .nav__link:nth-child(4){transition-delay:.49s}
  .about__grid{grid-template-columns:1fr;gap:26px}
  .stats{grid-template-columns:repeat(2,1fr);gap:30px 0}
  .stat:nth-child(3)::before{display:none}
  .services__head{grid-template-columns:1fr}.arrows{display:none}
  .grid,.adv__grid,.certs__grid{grid-template-columns:1fr}
  .logos{grid-template-columns:repeat(2,1fr);gap:30px 20px}
  .slide{padding:34px 24px}
  .footer__grid{grid-template-columns:1fr}
  .totop{right:16px;bottom:16px}
  .cursor-glow{display:none}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .reveal,.char{opacity:1!important;transform:none!important}
  .title.reveal .title__line{clip-path:none!important}
}

/* Сканы: отзывы, аттестаты, лайтбокс */
.certs__grid{grid-template-columns:repeat(5,1fr);gap:20px}
.cert-ic{display:none}
.cert__thumb{position:relative;display:block;width:100%;aspect-ratio:3/4;border-radius:12px;overflow:hidden;margin-bottom:22px;background:#eee;box-shadow:0 6px 18px -8px rgba(0,0,0,.3);cursor:zoom-in}
.cert__thumb img,.scan img{width:100%;height:100%;object-fit:cover;object-position:top;transition:transform .8s var(--ease)}
.cert__thumb:hover img,.scan:hover img{transform:scale(1.08)}
.zoom-ic{position:absolute;right:12px;bottom:12px;width:38px;height:38px;border-radius:50%;background:var(--accent);opacity:0;transform:scale(.5);transition:all .4s var(--ease)}
.zoom-ic::before{content:"";position:absolute;inset:10px;background:#fff;-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2.500' stroke-linecap='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='m21 21-5-5M11 8v6M8 11h6'/%3E%3C/svg%3E") center/contain no-repeat;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2.500' stroke-linecap='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='m21 21-5-5M11 8v6M8 11h6'/%3E%3C/svg%3E") center/contain no-repeat}
.cert__thumb:hover .zoom-ic,.scan:hover .zoom-ic{opacity:1;transform:none}
.slide{display:flex;gap:40px;align-items:center;padding:40px;flex:0 0 min(900px,86vw)}
.scan{position:relative;flex:0 0 260px;height:340px;border-radius:14px;overflow:hidden;background:#fff;box-shadow:0 14px 30px -14px rgba(0,0,0,.4);cursor:zoom-in}
.slide__body{display:flex;flex-direction:column;align-items:flex-start}
.slide__body .quote{margin-bottom:18px}
.slide__body b{font-size:22px;color:var(--dark);line-height:1.3}
.slide__body>span{margin:8px 0 18px;color:var(--accent);font-weight:600}
.slide__body p{font-size:17px;line-height:1.7;margin-bottom:26px}
.btn--sm{padding:14px 26px;font-size:15px;animation:none}
.lb{position:fixed;inset:0;z-index:90;background:rgba(20,22,26,.92);backdrop-filter:blur(6px);display:grid;place-items:center;opacity:0;visibility:hidden;transition:opacity .4s,visibility 0s .4s}
.lb.on{opacity:1;visibility:visible;transition:opacity .4s}
.lb img{max-width:min(92vw,900px);max-height:90vh;border-radius:6px;background:#fff;box-shadow:0 30px 80px rgba(0,0,0,.6);transform:scale(.9);transition:transform .5s var(--ease)}
.lb.on img{transform:none}
.lb__x,.lb__a{position:absolute;color:#fff;font-size:34px;width:56px;height:56px;border-radius:50%;background:rgba(255,255,255,.1);transition:background .3s,transform .3s var(--ease)}
.lb__x{top:20px;right:20px}.lb__a--p{left:20px}.lb__a--n{right:20px}
.lb__x:hover,.lb__a:hover{background:var(--accent);transform:scale(1.1)}
.lb__c{position:absolute;bottom:18px;color:#fff;font-size:14px;opacity:.7}
@media (max-width:1250px){.certs__grid{grid-template-columns:repeat(3,1fr)}}
@media (max-width:820px){.slide{flex-direction:column;align-items:flex-start;padding:24px}.scan{flex:none;width:100%;height:300px}.certs__grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.certs__grid{grid-template-columns:1fr}}


/* Иконки из макета */
.adv-ic{width:auto;height:54px;color:inherit}
.cert-ic{display:block;width:auto;height:44px;margin-bottom:18px;transition:transform .5s var(--ease)}
.cert:hover .cert-ic{transform:scale(1.15) rotate(-6deg);color:inherit}
.quote{width:38px;height:auto;color:inherit;opacity:1}
.contacts .ci{width:20px;height:20px;object-fit:contain;flex:none}
.dl::before{background:none;-webkit-mask:none;mask:none;width:16px;height:16px;background:url(icons/download.png) center/contain no-repeat}

.cert-ic{align-self:flex-start;width:auto;max-width:none;object-fit:contain}


.cert__thumb{border:1px solid #e3e3e0;background:#fff}
.cert__thumb img{object-fit:contain;object-position:center}


.arrows{grid-row:1}


/* Модальное окно проекта */
.pm{position:fixed;inset:0;z-index:80;display:grid;place-items:center;padding:28px;background:rgba(20,22,26,.78);backdrop-filter:blur(8px);opacity:0;visibility:hidden;transition:opacity .45s,visibility 0s .45s}
.pm.on{opacity:1;visibility:visible;transition:opacity .45s}
.pm__panel{position:relative;width:min(1100px,100%);max-height:calc(100vh - 56px);max-height:calc(100dvh - 56px);overflow-y:auto;background:#fff;border-radius:28px;box-shadow:0 40px 100px -20px rgba(0,0,0,.7);outline:none;transform:translateY(60px) scale(.94);opacity:0;transition:transform .7s var(--ease),opacity .5s;overscroll-behavior:contain}
.pm.on .pm__panel{transform:none;opacity:1}
.pm__x{position:absolute;top:18px;right:18px;z-index:5;width:48px;height:48px;border-radius:50%;background:rgba(255,255,255,.92);color:var(--dark);font-size:30px;line-height:1;transition:transform .4s var(--ease),background .3s,color .3s}
.pm__x:hover{background:var(--accent);color:#fff;transform:rotate(90deg) scale(1.08)}
.pm__hero{position:relative;aspect-ratio:21/9;min-height:260px;overflow:hidden;background:var(--darker)}
.pm__hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transform:scale(1.15);transition:transform 1.6s var(--ease)}
.pm.on .pm__hero img{transform:scale(1)}
.pm__hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.1) 30%,rgba(30,33,38,.88))}
.pm__hero .tag{position:absolute;z-index:2;top:20px;left:24px;background:var(--accent);color:#fff;font-size:13px;font-weight:600;padding:6px 16px;border-radius:999px}
.pm__head{position:absolute;z-index:2;left:36px;right:36px;bottom:28px;color:#fff;opacity:0;transform:translateY(24px);transition:all .8s var(--ease) .25s}
.pm.on .pm__head{opacity:1;transform:none}
.pm__head h2{font-size:clamp(26px,3.6vw,46px);line-height:1.1;font-weight:800}
.pm__head p{margin-top:10px;display:flex;align-items:center;gap:6px;flex-wrap:wrap;color:rgba(255,255,255,.8);font-size:15px}
.pm__body{padding:36px 40px 44px}
.pm__lead{font-size:clamp(17px,1.5vw,21px);line-height:1.7;color:#4d5157;font-weight:500;max-width:860px}
.pm__sub{margin:38px 0 22px;font-size:14px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);font-weight:700}
.pm__objs{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.pm__objs--one{grid-template-columns:1fr}
.pm__obj{display:flex;flex-direction:column;border-radius:20px;overflow:hidden;background:var(--light);opacity:0;transform:translateY(34px);transition:transform .5s var(--ease),box-shadow .5s}
.pm.on .pm__obj{animation:objIn .8s var(--ease) forwards;animation-delay:calc(.35s + var(--i)*.09s)}
@keyframes objIn{to{opacity:1;transform:none}}
.pm__obj:hover{box-shadow:0 24px 40px -22px rgba(0,0,0,.45)}
.pm__ph{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;cursor:zoom-in}
.pm__ph img{width:100%;height:100%;object-fit:cover;transition:transform 1s var(--ease)}
.pm__obj:hover .pm__ph img{transform:scale(1.08)}
.pm__ph:hover .zoom-ic{opacity:1;transform:none}
.pm__txt{padding:20px 24px 26px}
.pm__txt h4{font-size:20px;color:var(--dark);margin-bottom:10px;position:relative;padding-bottom:12px}
.pm__txt h4::after{content:"";position:absolute;left:0;bottom:0;height:3px;width:36px;background:var(--accent);transition:width .5s var(--ease)}
.pm__obj:hover h4::after{width:70px}
.pm__txt p{font-size:15px;line-height:1.65;color:#666b71}
@media (max-width:820px){.pm{padding:0}.pm__panel{max-height:100vh;max-height:100dvh;border-radius:0;width:100%}.pm__body{padding:24px 20px 34px}.pm__objs{grid-template-columns:1fr}.pm__head{left:20px;right:20px}.pm__hero{aspect-ratio:4/3}}

/* производительность модалок */
.pm,.lb{backdrop-filter:none!important}
.pm{background:rgba(20,22,26,.86)}
body.modal-open .hero__bg,body.modal-open .cursor-glow{animation-play-state:paused;display:none}



/* UI-кит: типографика, кнопки, фильтры */
.title,.hero__title,.stat__num,.pm__head h2,.preloader{font-family:"IBM Plex Sans Condensed","IBM Plex Sans",sans-serif}
.title{font-weight:700}
.hero__title{font-weight:700;letter-spacing:0}
.stat__num{font-weight:700;letter-spacing:0}
.btn:focus-visible,.chip:focus-visible,.dl:focus-visible,.arrow:focus-visible{outline:2px solid var(--accent);outline-offset:4px}
.btn--primary:hover{background:var(--dark);box-shadow:0 14px 30px -12px rgba(0,0,0,.5)}
.btn--primary:focus-visible{outline:2px solid var(--accent);outline-offset:4px}
.btn[disabled],.btn.is-disabled{background:#f0f0ef;color:#9a9da3;box-shadow:none;pointer-events:none;animation:none}
.btn--ghost:hover{border-color:var(--accent)}
.chip{background:var(--dark);border:2px solid transparent;color:rgba(255,255,255,.88)}
.chip:hover{background:var(--dark);border-color:#fff;color:#fff;transform:none}
.chip.is-active{background:var(--accent);border-color:var(--accent);color:#fff}
.projects .chip{background:#6b7076}
.projects .chip:hover{background:#6b7076;border-color:#fff}
.projects .chip.is-active{background:var(--accent);border-color:var(--accent)}
.dl{padding:2px 4px;border-radius:2px;border:1px solid transparent;transition:color .3s,border-color .3s}
.dl:hover{color:var(--dark);text-decoration:underline}
.dl:focus-visible{border-color:var(--accent);outline:none}
.slides.is-drag,.slides{cursor:grab}
.slides.is-drag{cursor:grabbing}
.slider{touch-action:pan-y;user-select:none}
.slide img{-webkit-user-drag:none}

/* Кнопка «Вниз» */
.todown{bottom:94px}
.todown svg{animation:nudge 1.8s ease-in-out infinite}
@keyframes nudge{50%{transform:translateY(4px)}}
@media (max-width:820px){.todown{bottom:80px}}

/* Кнопки: «Наверх» сверху, «Вниз» снизу */
.totop{bottom:94px}
.todown{bottom:28px}
@media (max-width:820px){.totop{bottom:80px}.todown{bottom:16px}}

/* Видео в hero: стройка здания от начала до конца */
.hero__bg{animation:kenburns 22s ease-in-out infinite alternate}
.hero__video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
@media (prefers-reduced-motion:reduce){.hero__video{display:none}}


.certs__grid{grid-template-columns:repeat(3,1fr)}
@media (max-width:820px){.certs__grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.certs__grid{grid-template-columns:1fr}}

/* Аттестаты: один ряд, компактно */
.certs__grid{grid-template-columns:repeat(6,1fr);gap:14px}
.cert{padding:18px 16px 20px;border-radius:16px}
.cert__thumb{margin-bottom:14px;border-radius:8px}
.cert-ic{height:30px;margin-bottom:10px}
.cert h3{font-size:15px;line-height:1.3}
.cert__kind{font-size:11px;margin:8px 0 10px}
.cert p{font-size:12.5px;line-height:1.5;margin-bottom:16px}
.dl{font-size:13px}
@media (max-width:1250px){.certs__grid{grid-template-columns:repeat(3,1fr)}}
@media (max-width:820px){.certs__grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.certs__grid{grid-template-columns:1fr}}

/* Партнёры: остальные логотипы не тускнеют */
.logos:hover .logo-item{filter:none;opacity:1}

.cert p{margin-bottom:0}

.svc.is-picked .svc__img{transform:translateY(-8px);box-shadow:0 30px 50px -22px rgba(0,0,0,.55)}
.svc.is-picked h3{color:var(--accent)}
.svc.is-picked .svc__num{opacity:1;transform:none}
.svc.is-picked .svc__img::after{opacity:1}