/* ==========================================================================
   MASTERHUB INDUSTRY — design system
   Строительство • Металл • Снабжение
   ========================================================================== */

:root{
    --black:#111111;
    --dark:#0E1116;
    --dark-2:#171B22;
    --white:#FFFFFF;
    --gray:#F3F3F3;
    --gray-2:#E4E6E9;
    --gray-text:#6B7076;
    --accent:#F2B705;
    --accent-dark:#D9A404;
    --line:rgba(17,17,17,.10);
    --line-dark:rgba(255,255,255,.10);
    --radius:2px;
    --container:1320px;
    --header-h:76px;
    --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box;}

html{
    overflow-x:clip;
    scroll-padding-top:calc(var(--header-h) + 20px);
    -webkit-text-size-adjust:100%;
}

body{
    overflow-x:clip;
    font-family:'Montserrat','Segoe UI','Helvetica Neue',Arial,'Noto Sans',sans-serif;
    background:var(--white);
    color:var(--black);
    font-size:16px;
    line-height:1.65;
    font-weight:400;
    overflow-x:hidden;
    -webkit-font-smoothing:antialiased;
}

body.menu-open{overflow:hidden;}

img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;background:none;border:none;}

::selection{background:var(--accent);color:var(--black);}

.container{
    width:100%;
    max-width:var(--container);
    margin:0 auto;
    padding:0 40px;
}

/* ---------- Typography ---------- */

h1,h2{
    font-weight:800;
    line-height:1.10;
    letter-spacing:-.02em;
    text-transform:uppercase;
}
h3,h4{
    font-weight:700;
    line-height:1.25;
    letter-spacing:-.01em;
}

h1{font-size:clamp(27px,3.5vw,52px);}
h2{font-size:clamp(24px,2.6vw,38px);}
h3{font-size:clamp(16px,1.25vw,19px);}
h4{font-size:15px;letter-spacing:0;}

p{color:var(--gray-text);}

.eyebrow{
    display:inline-flex;
    align-items:center;
    gap:10px;
    font-size:12px;
    font-weight:700;
    letter-spacing:.22em;
    text-transform:uppercase;
    color:var(--gray-text);
    margin-bottom:22px;
}
.eyebrow::before{
    content:"";
    width:28px;height:2px;
    background:var(--accent);
    display:block;
}
.eyebrow--light{color:rgba(255,255,255,.55);}

.section{padding:104px 0;}
.section--gray{background:var(--gray);}
.section--dark{background:var(--dark);color:var(--white);}
.section--dark p{color:rgba(255,255,255,.62);}
.section--tight{padding:76px 0;}

.section-head{max-width:760px;margin-bottom:48px;}
.section-head p{margin-top:20px;font-size:17px;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head--center .eyebrow{justify-content:center;}

.section-head--split{
    max-width:none;
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:50px;
}
.section-head--split .sh-left{max-width:660px;}
.section-head--split .sh-left p{margin-top:18px;max-width:560px;}
.section-head--split > p{margin-top:0;max-width:380px;}

/* ---------- Buttons ---------- */

.btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:12px;
    height:58px;
    padding:0 34px;
    font-size:13px;
    font-weight:700;
    letter-spacing:.14em;
    text-transform:uppercase;
    border-radius:var(--radius);
    border:2px solid transparent;
    transition:background-color .25s var(--ease),border-color .25s var(--ease),color .25s var(--ease);
    white-space:nowrap;
    text-align:center;
}
.btn i{font-style:normal;transition:transform .25s var(--ease);}
.btn:hover i{transform:translateX(4px);}

.btn--accent{background:var(--accent);color:var(--black);border-color:var(--accent);}
.btn--accent:hover{background:var(--accent-dark);border-color:var(--accent-dark);}

.btn--dark{background:var(--black);color:var(--white);border-color:var(--black);}
.btn--dark:hover{background:var(--accent);border-color:var(--accent);color:var(--black);}

.btn--outline{background:transparent;color:var(--black);border-color:var(--line);}
.btn--outline:hover{border-color:var(--black);}

.btn--ghost{background:rgba(14,17,22,.42);color:var(--white);border-color:rgba(255,255,255,.42);}
.btn--ghost:hover{border-color:var(--white);background:rgba(14,17,22,.62);}

.btn--sm{height:48px;min-height:44px;padding:0 26px;font-size:12px;}
.btn--full{width:100%;}

.link-more{
    display:inline-flex;
    align-items:center;
    gap:10px;
    font-size:12px;
    font-weight:700;
    letter-spacing:.16em;
    text-transform:uppercase;
    color:var(--black);
    transition:gap .3s var(--ease),color .3s var(--ease);
}
.link-more span{transition:transform .3s var(--ease);}
.link-more:hover{gap:16px;color:var(--accent-dark);}
.link-more--light{color:var(--white);}
.link-more--light:hover{color:var(--accent);}

/* ==========================================================================
   HEADER
   ========================================================================== */

.header{
    position:sticky;
    top:0;
    z-index:900;
    background:var(--white);
    border-bottom:1px solid var(--line);
    transition:box-shadow .3s var(--ease);
    will-change:transform;
    contain:layout paint;
}
.header.is-scrolled{box-shadow:0 1px 0 rgba(17,17,17,.10),0 6px 16px rgba(17,17,17,.06);}
.header .container{max-width:1640px;}

.header__inner{
    height:var(--header-h);
    display:flex;
    align-items:center;
    gap:40px;
}

.logo{
    display:flex;
    align-items:center;
    gap:12px;
    flex-shrink:0;
}
.logo__mark{
    width:42px;height:42px;
    background:var(--black);
    color:var(--accent);
    display:flex;align-items:center;justify-content:center;
    font-weight:800;font-size:20px;
    border-radius:var(--radius);
    flex-shrink:0;
}
.logo__text{display:flex;flex-direction:column;line-height:1;}
.logo__text b{
    font-size:19px;font-weight:800;letter-spacing:.02em;
}
.logo__text small{
    font-size:9.5px;font-weight:600;letter-spacing:.42em;
    color:var(--gray-text);margin-top:4px;
}

.nav{margin-left:auto;}
.nav__mobile{display:none;}
.nav__list{display:flex;align-items:center;gap:26px;}
.nav__list a{
    font-size:11.5px;
    font-weight:700;
    letter-spacing:.1em;
    text-transform:uppercase;
    color:var(--black);
    position:relative;
    padding:6px 0;
    transition:color .25s var(--ease);
    white-space:nowrap;
}
.nav__list a::after{
    content:"";position:absolute;left:0;bottom:0;
    width:0;height:2px;background:var(--accent);
    transition:width .3s var(--ease);
}
.nav__list a:hover::after,
.nav__list a.is-active::after{width:100%;}
.nav__list a.is-active{color:var(--black);}

.header__actions{
    display:flex;align-items:center;gap:22px;flex-shrink:0;
}
.header__phone{
    font-size:15px;font-weight:800;letter-spacing:.01em;
    white-space:nowrap;
    transition:color .25s var(--ease);
}
.header__phone:hover{color:var(--accent-dark);}

.burger{
    display:none;
    width:46px;height:46px;
    flex-direction:column;
    align-items:center;justify-content:center;
    gap:5px;
    border:1px solid var(--line);
    border-radius:var(--radius);
    flex-shrink:0;
}
.burger span{
    width:20px;height:2px;background:var(--black);
    transition:transform .3s var(--ease),opacity .2s var(--ease);
}
.burger.is-active span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.burger.is-active span:nth-child(2){opacity:0;}
.burger.is-active span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ==========================================================================
   HERO
   ========================================================================== */

.hero{
    position:relative;
    min-height:min(680px, calc(100vh - var(--header-h)));
    display:flex;
    align-items:center;
    background:var(--dark);
    color:var(--white);
    overflow:hidden;
    padding:64px 0 52px;
}
.hero__bg{position:absolute;inset:0;}
.hero__bg img{width:100%;height:100%;object-fit:cover;}
.hero__bg::after{
    content:"";position:absolute;inset:0;
    background:
        linear-gradient(180deg,rgba(14,17,22,.10) 0%,rgba(14,17,22,0) 45%,rgba(14,17,22,.62) 88%,rgba(14,17,22,.80) 100%),
        linear-gradient(100deg,rgba(14,17,22,.90) 0%,rgba(14,17,22,.70) 32%,rgba(14,17,22,.26) 60%,rgba(14,17,22,.30) 100%);
}
.hero .container{position:relative;z-index:2;}

.hero__inner{max-width:min(600px,46%);}
.hero h1{color:var(--white);text-shadow:0 2px 26px rgba(0,0,0,.5);}
.hero h1 span{color:var(--accent);}
.hero__sub{
    margin-top:22px;
    max-width:460px;
    font-size:16px;
    color:rgba(255,255,255,.84);
    text-shadow:0 1px 18px rgba(0,0,0,.5);
}
.hero__buttons{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}

.hero__strip{
    margin-top:44px;
    padding-top:24px;
    border-top:1px solid rgba(255,255,255,.16);
    display:flex;
    flex-wrap:wrap;
    gap:12px 30px;
    max-width:none;
}
.hero__strip span{
    display:flex;align-items:center;gap:10px;
    font-size:11.5px;font-weight:600;letter-spacing:.09em;
    text-transform:uppercase;
    color:rgba(255,255,255,.86);
}
.hero__strip span::before{
    content:"";width:6px;height:6px;background:var(--accent);flex-shrink:0;
}

/* ---------- Page hero (inner pages) ---------- */

.page-hero{
    position:relative;
    background:var(--dark);
    color:var(--white);
    padding:110px 0 90px;
    overflow:hidden;
}
.page-hero__bg{position:absolute;inset:0;}
.page-hero__bg img{width:100%;height:100%;object-fit:cover;opacity:.85;}
.page-hero__bg::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(90deg,rgba(14,17,22,.90) 8%,rgba(14,17,22,.62) 62%,rgba(14,17,22,.42) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.page-hero h1{color:var(--white);max-width:18ch;}
.page-hero p{
    margin-top:24px;max-width:600px;font-size:17px;color:rgba(255,255,255,.7);
}
.page-hero .btn{margin-top:38px;}

.breadcrumbs{
    display:flex;flex-wrap:wrap;align-items:center;gap:10px;
    font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
    color:rgba(255,255,255,.45);
    margin-bottom:26px;
}
.breadcrumbs a:hover{color:var(--accent);}
.breadcrumbs span{color:rgba(255,255,255,.25);}

/* ==========================================================================
   DIRECTIONS (3 big cards)
   ========================================================================== */

.directions{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}

.dir-card{
    contain:layout paint;
    position:relative;
    display:flex;flex-direction:column;
    background:var(--dark);
    color:var(--white);
    overflow:hidden;
    border-radius:var(--radius);
    border-bottom:3px solid transparent;
    transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .3s var(--ease);
}
@media (hover:hover) and (pointer:fine){
    .dir-card:hover{
        transform:translateY(-6px);
        box-shadow:0 10px 22px rgba(17,17,17,.13);
        border-bottom-color:var(--accent);
    }
    .dir-card:hover .dir-card__img img{transform:scale(1.05);}
    .project-card:hover{
        border-color:var(--black);
        transform:translateY(-4px);
        box-shadow:0 8px 18px rgba(17,17,17,.10);
    }
    .project-card:hover .project-card__img img{transform:scale(1.05);}
    .mat-item:hover{
        border-color:var(--black);transform:translateY(-4px);
        box-shadow:0 8px 18px rgba(17,17,17,.10);
    }
    
    .svc-card:hover .svc-card__img img{transform:scale(1.05);}
    .tile:hover .tile__img img{transform:scale(1.05);}
}
.dir-card__img{
    position:relative;
    aspect-ratio:4/3;
    overflow:hidden;
    flex-shrink:0;
}
.dir-card__img img{
    width:100%;height:100%;object-fit:cover;
    transition:transform .5s var(--ease);
}
.dir-card__num{
    position:absolute;top:20px;left:22px;z-index:2;
    font-size:11px;font-weight:800;letter-spacing:.2em;color:var(--black);
    background:var(--accent);padding:6px 10px;border-radius:var(--radius);
}
.dir-card__body{
    position:relative;z-index:2;
    padding:30px 30px 32px;
    display:flex;flex-direction:column;flex:1;
}
.dir-card h3{
    margin-bottom:12px;font-size:clamp(17px,1.35vw,21px);
    text-transform:uppercase;letter-spacing:-.01em;
}
.dir-card p{color:rgba(255,255,255,.66);font-size:14.5px;margin-bottom:22px;flex:1;}

/* ==========================================================================
   ADVANTAGES
   ========================================================================== */

.adv-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:38px 32px;
}
.adv-grid--3{grid-template-columns:repeat(3,1fr);}
.adv-card{
    padding:0 0 0 0;
    border-top:2px solid var(--line);
    padding-top:22px;
    transition:border-color .3s var(--ease);
}
.adv-card:hover{border-top-color:var(--accent);}
.adv-card__icon{
    width:34px;height:34px;
    display:flex;align-items:center;justify-content:flex-start;
    margin-bottom:16px;
    color:var(--accent);
}
.adv-card__icon svg{width:30px;height:30px;}
.adv-card h3{font-size:15.5px;margin-bottom:7px;}
.adv-card p{font-size:14px;line-height:1.6;}
.section--gray .adv-card{border-top-color:var(--gray-2);}
.section--gray .adv-card:hover{border-top-color:var(--accent);}

/* ==========================================================================
   PROCESS
   ========================================================================== */

.process{
    position:relative;
    display:grid;
    grid-template-columns:repeat(6,1fr);
    gap:0 28px;
}
.process--5{grid-template-columns:repeat(5,1fr);}
.process--4{grid-template-columns:repeat(4,1fr);}
.process::before{
    content:"";
    position:absolute;left:0;right:0;top:23px;
    height:1px;background:rgba(255,255,255,.16);
}
.process__step{position:relative;padding-top:64px;}
.process__step::before{
    content:"";position:absolute;left:0;top:17px;
    width:13px;height:13px;background:var(--accent);
    border:3px solid var(--dark);border-radius:50%;

}
.process__step b{
    position:absolute;top:-4px;left:26px;
    font-size:15px;font-weight:800;letter-spacing:.10em;
    color:rgba(255,255,255,.42);
    line-height:1;
}
.process__step h3{font-size:16px;color:var(--white);margin-bottom:8px;}
.process__step p{font-size:13.5px;line-height:1.6;}
.section--gray .process::before{background:var(--line);}
.section--gray .process__step::before{border-color:var(--gray);}
.section--gray .process__step b{color:var(--gray-text);}
.section--gray .process__step h3{color:var(--black);}

/* ---------- Список типов конструкций ---------- */

.chip-grid{
    display:grid;grid-template-columns:repeat(4,1fr);
    gap:1px;background:var(--line-dark);border:1px solid var(--line-dark);
}
.chip{
    background:var(--dark);
    padding:26px 24px 28px;
    display:flex;align-items:center;gap:16px;
    transition:background .3s var(--ease);
}
.chip:hover{background:var(--dark-2);}
.chip-grid--light{background:var(--line);border-color:var(--line);}
.chip-grid--light .chip{background:var(--white);}
.chip-grid--light .chip:hover{background:#FAFAFA;}
.chip-grid--light .chip span{color:var(--black);}
@media (min-width:1201px){ .chip-grid--light:not(.chip-grid--2) .chip:last-child{grid-column:span 2;} }
@media (min-width:769px) and (max-width:1200px){ .chip-grid--light:not(.chip-grid--2) .chip:last-child{grid-column:span 3;} }
@media (min-width:561px) and (max-width:768px){ .chip-grid--light:not(.chip-grid--2) .chip:last-child{grid-column:span 2;} }
.chip b{font-size:12px;font-weight:800;color:var(--accent);letter-spacing:.08em;}
.chip span{font-size:16px;font-weight:600;color:#fff;letter-spacing:-.01em;}

/* ==========================================================================
   PROJECTS
   ========================================================================== */

.filters{
    display:flex;flex-wrap:wrap;gap:10px;margin-bottom:40px;
}
.filter{
    height:46px;padding:0 22px;
    display:inline-flex;align-items:center;
    font-size:11.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
    border:1px solid var(--line);
    border-radius:var(--radius);
    color:var(--gray-text);
    transition:all .25s var(--ease);
}
.filter:hover{border-color:var(--black);color:var(--black);}
.filter.is-active{background:var(--black);border-color:var(--black);color:var(--white);}

.projects-grid{
    display:grid;grid-template-columns:repeat(3,1fr);gap:26px;
}
@media (min-width:1300px){
    .projects-grid--featured .project-card:first-child{
        grid-column:span 2;grid-row:span 2;
        display:flex;flex-direction:column;
    }
    .projects-grid--featured .project-card:first-child .project-card__img{
        aspect-ratio:auto;flex:1 1 auto;min-height:300px;
    }
    .projects-grid--featured .project-card:first-child .project-card__body{padding:28px 32px 32px;}
    .projects-grid--featured .project-card:first-child h3{font-size:23px;}
    .projects-grid--featured .project-card:first-child p{font-size:15.5px;}
}
.project-card{
    display:block;
    contain:layout paint;
    background:var(--white);
    border:1px solid var(--line);
    border-radius:var(--radius);
    overflow:hidden;
    transition:border-color .3s var(--ease),transform .35s var(--ease),box-shadow .35s var(--ease);
}

.project-card__img{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--dark);contain:paint;}
.project-card__img img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}

.project-card__tag{
    position:absolute;top:16px;left:16px;
    background:var(--accent);color:var(--black);
    font-size:10.5px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;
    padding:7px 13px;border-radius:var(--radius);
}
.project-card__body{padding:24px 26px 28px;}
.project-card__body h3{font-size:18px;margin-bottom:9px;}
.project-card__body p{font-size:14px;line-height:1.6;}

.project-card.is-hidden{display:none;}

/* ==========================================================================
   CATEGORY / SERVICE CARDS
   ========================================================================== */

.cards-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.cards-grid--4{grid-template-columns:repeat(4,1fr);}

.tile{
    position:relative;
    display:flex;flex-direction:column;justify-content:flex-end;
    min-height:340px;
    padding:30px;
    background:var(--dark);
    color:var(--white);
    overflow:hidden;
    border-radius:var(--radius);
}
.tile__img{position:absolute;inset:0;}
.tile__img img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease);}
.tile__img::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(14,17,22,.08) 0%,rgba(14,17,22,.50) 54%,rgba(14,17,22,.92) 90%);
}

.tile__body{position:relative;z-index:2;}
.tile h3{margin-bottom:10px;}
.tile p{color:rgba(255,255,255,.66);font-size:14px;line-height:1.6;}

.svc-grid{
    display:grid;grid-template-columns:repeat(3,1fr);
    gap:1px;background:var(--line);border:1px solid var(--line);
}
.svc-card{
    contain:layout paint;
    background:var(--white);
    padding:0;
    transition:background .3s var(--ease);
    display:flex;flex-direction:column;
}
.svc-card__img{aspect-ratio:16/10;overflow:hidden;background:var(--dark);}
.svc-card__img img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}

.svc-card__body{padding:28px 30px 32px;flex:1;}
.svc-card__body h3{font-size:17px;margin-bottom:10px;}
.svc-card__body p{font-size:14px;line-height:1.6;}

.list-grid{
    display:grid;grid-template-columns:repeat(4,1fr);
    gap:1px;background:var(--line);border:1px solid var(--line);
}
.list-item{
    background:var(--white);
    padding:30px 28px;
    display:flex;align-items:flex-start;gap:16px;
    transition:background .3s var(--ease);
}
.list-item:hover{background:var(--gray);}
.list-item b{
    font-size:12px;font-weight:800;color:var(--accent);flex-shrink:0;line-height:1.9;
}
.list-item h3{font-size:15px;margin-bottom:8px;}
.list-item p{font-size:13.5px;line-height:1.55;}

/* ---------- Materials chips ---------- */

.mat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.mat-item{
    contain:layout paint;
    display:flex;flex-direction:column;
    background:var(--white);
    border:1px solid var(--line);
    border-radius:var(--radius);
    overflow:hidden;
    transition:border-color .3s var(--ease),transform .3s var(--ease),box-shadow .3s var(--ease);
}

.mat-item__img{aspect-ratio:4/3;overflow:hidden;background:var(--dark);}
.mat-item__img img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}

.mat-item__body{padding:20px 22px 24px;}
.mat-item h3{font-size:15px;margin-bottom:7px;}
.mat-item small{display:block;font-size:13px;line-height:1.5;color:var(--gray-text);}

/* ==========================================================================
   SPLIT / TEXT BLOCKS
   ========================================================================== */

.split{
    display:grid;grid-template-columns:1.05fr 1fr;gap:70px;align-items:center;
}
.split__media{position:relative;border-radius:var(--radius);overflow:hidden;}
.split__media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.split--reverse .split__media{order:2;}
.split--reverse .split__text{order:1;}
.chip-grid--2{grid-template-columns:repeat(2,1fr);margin-top:26px;}
.chip-grid--2 .chip{padding:18px 18px 20px;gap:12px;}
.chip-grid--2 .chip span{font-size:14.5px;}
.split__text h2{margin-bottom:24px;}
.split__text p{font-size:16px;margin-bottom:18px;}
.split__text p:last-of-type{margin-bottom:0;}

.checklist{margin-top:30px;display:grid;gap:14px;}
.checklist li{
    display:flex;align-items:flex-start;gap:13px;
    font-size:15px;font-weight:600;color:var(--black);
}
.checklist li::before{
    content:"";
    width:8px;height:8px;background:var(--accent);
    margin-top:9px;flex-shrink:0;
}

.text-cols{display:grid;grid-template-columns:repeat(2,1fr);gap:56px;}
.text-block h3{margin-bottom:16px;}
.text-block p{font-size:15.5px;}
.text-block + .text-block{margin-top:0;}

/* ==========================================================================
   CTA + FORM
   ========================================================================== */

.cta{background:var(--dark);color:var(--white);padding:86px 0;}
.cta__inner{display:grid;grid-template-columns:1fr .92fr;gap:64px;align-items:center;}
.cta h2{color:var(--white);max-width:20ch;}
.cta__text{margin-top:24px;font-size:17px;color:rgba(255,255,255,.66);max-width:440px;}
.cta__note{
    margin-top:14px;
    display:inline-flex;align-items:center;gap:10px;
    font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
    color:var(--accent);
}
.cta__note::before{content:"";width:20px;height:2px;background:var(--accent);}
.cta__contacts{margin-top:34px;display:grid;gap:14px;}
.cta__contacts a,.cta__contacts span{
    display:flex;align-items:center;gap:14px;
    font-size:15px;color:rgba(255,255,255,.8);
}
.cta__contacts b{color:var(--white);font-weight:800;font-size:17px;}
.cta__contacts i{
    font-style:normal;width:34px;height:34px;flex-shrink:0;
    display:flex;align-items:center;justify-content:center;
    border:1px solid rgba(255,255,255,.16);color:var(--accent);font-size:14px;
}

.form{
    background:var(--white);
    color:var(--black);
    padding:34px 34px 36px;
    border-radius:var(--radius);
}
.form h3{margin-bottom:8px;font-size:17px;text-transform:uppercase;letter-spacing:.02em;}
.form__note{font-size:13.5px;color:var(--gray-text);margin-bottom:22px;}
.form__row{margin-bottom:13px;}
.form label{
    display:block;font-size:11px;font-weight:700;letter-spacing:.14em;
    text-transform:uppercase;color:var(--gray-text);margin-bottom:9px;
}
.form input[type=text],
.form input[type=tel],
.form input[type=email],
.form textarea{
    width:100%;
    height:50px;
    padding:0 16px;
    background:var(--gray);
    border:1px solid transparent;
    border-radius:var(--radius);
    font-size:15px;
    transition:border-color .25s var(--ease),background .25s var(--ease);
}
.form textarea{height:auto;padding:14px 16px;resize:vertical;min-height:96px;line-height:1.55;}
.form input:focus,.form textarea:focus{
    outline:none;border-color:var(--black);background:var(--white);
}
.form input.is-error,.form textarea.is-error{border-color:#D93025;background:#FDF3F2;}
.form .err{
    display:none;font-size:12px;color:#D93025;margin-top:7px;letter-spacing:0;
    text-transform:none;font-weight:600;
}
.form .err.is-visible{display:block;}

.form__file{
    display:flex;align-items:center;gap:14px;
    padding:16px 18px;
    background:var(--gray);
    border:1px dashed rgba(17,17,17,.2);
    border-radius:var(--radius);
    cursor:pointer;
    transition:border-color .25s var(--ease);
}
.form__file:hover{border-color:var(--black);}
.form__file input{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none;}
.form__file span{font-size:13.5px;color:var(--gray-text);}
.form__file b{font-size:13px;font-weight:700;color:var(--black);}

.form__policy{
    margin-top:18px;font-size:12px;line-height:1.55;color:var(--gray-text);
}
.form__policy a{text-decoration:underline;}
.form .btn{margin-top:18px;}

/* ==========================================================================
   CONTACTS PAGE
   ========================================================================== */

.contact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
.contact-cell{background:var(--white);padding:34px 30px 38px;}
.contact-cell h4{
    font-size:11px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
    color:var(--gray-text);margin-bottom:14px;
}
.contact-cell a,.contact-cell p{
    font-size:19px;font-weight:700;color:var(--black);line-height:1.4;letter-spacing:-.01em;
}
.contact-cell a:hover{color:var(--accent-dark);}
.contact-cell small{display:block;font-size:13px;font-weight:600;color:var(--gray-text);margin-top:8px;}

.map{
    width:100%;height:460px;
    background:var(--gray);
    border:1px solid var(--line);
    overflow:hidden;
}
.map iframe{width:100%;height:100%;border:0;display:block;}

/* ==========================================================================
   FOOTER
   ========================================================================== */

.footer{background:var(--black);color:var(--white);padding:80px 0 0;}
.footer__top{
    display:grid;
    grid-template-columns:1.6fr 1fr 1fr 1.2fr;
    gap:50px;
    padding-bottom:60px;
    border-bottom:1px solid var(--line-dark);
}
.footer .logo__mark{background:var(--accent);color:var(--black);}
.footer .logo__text small{color:rgba(255,255,255,.5);}
.footer__about{margin-top:26px;font-size:14px;color:rgba(255,255,255,.55);max-width:300px;line-height:1.7;}
.footer__tags{margin-top:22px;display:flex;flex-wrap:wrap;gap:8px;}
.footer__tags span{
    font-size:10.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
    padding:7px 12px;border:1px solid rgba(255,255,255,.14);color:rgba(255,255,255,.6);
}
.footer h4{
    font-size:11px;letter-spacing:.18em;color:rgba(255,255,255,.45);margin-bottom:22px;
}
.footer__col ul{display:grid;gap:13px;}
.footer__col a{font-size:14px;color:rgba(255,255,255,.72);transition:color .25s var(--ease);}
.footer__col a:hover{color:var(--accent);}
.footer__contacts{display:grid;gap:14px;}
.footer__contacts a,.footer__contacts span{font-size:14px;color:rgba(255,255,255,.72);}
.footer__contacts b{display:block;font-size:19px;font-weight:800;color:var(--white);margin-bottom:4px;}
.footer__bottom{
    padding:26px 0;
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
}
.footer__bottom p,.footer__bottom a{font-size:12.5px;color:rgba(255,255,255,.4);}
.footer__bottom a:hover{color:var(--accent);}

/* ==========================================================================
   REVEAL ANIMATION
   ========================================================================== */

/* Анимация появления убрана: контент отображается сразу.
   .reveal оставлен как разметочный хук, стилей не несёт. */

@media (prefers-reduced-motion:reduce){
    html{scroll-behavior:auto;}
    *,*::before,*::after{
        animation-duration:.01ms!important;
        animation-iteration-count:1!important;
        transition-duration:.01ms!important;
        scroll-behavior:auto!important;
    }
    .dir-card:hover,.project-card:hover,.mat-item:hover{transform:none!important;}
    .dir-card__img img,.project-card__img img,.mat-item__img img,
    .svc-card__img img,.tile__img img{transform:none!important;}
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (max-width:1560px){
    .nav__list{gap:16px;}
    .nav__list a{font-size:10.5px;letter-spacing:.07em;}
    .header__phone{font-size:14px;}
    .header__actions{gap:16px;}
    .header__actions .btn{padding:0 22px;}
}

@media (max-width:1440px){
    .container{padding:0 32px;}
}

@media (max-width:1340px){
    .nav__list{gap:12px;}
    .nav__list a{font-size:10px;letter-spacing:.04em;}
    .header__phone{font-size:13px;}
    .header__actions .btn{padding:0 18px;font-size:11px;}
    .header__inner{gap:24px;}
}

@media (max-width:1200px){
    :root{--header-h:72px;}
    .adv-grid{grid-template-columns:repeat(3,1fr);gap:32px 26px;}
    .adv-grid--3{grid-template-columns:repeat(3,1fr);}
    .chip-grid{grid-template-columns:repeat(3,1fr);}
    .mat-grid{grid-template-columns:repeat(3,1fr);}
    .process,.process--5,.process--4{grid-template-columns:repeat(3,1fr);gap:34px 24px;}
    .process::before{display:none;}
    .list-grid{grid-template-columns:repeat(3,1fr);}
    .contact-grid{grid-template-columns:repeat(2,1fr);}
    .split{gap:46px;}
}

@media (max-width:1279px){
    .header__inner{gap:20px;}
    .nav{
        position:fixed;
        inset:var(--header-h) 0 0 0;
        background:var(--white);
        margin:0;
        padding:32px;
        overflow-y:auto;
        transform:translateX(100%);
        visibility:hidden;
        transition:transform .35s var(--ease),visibility .35s var(--ease);
        display:block;
    }
    .nav.is-open{transform:translateX(0);visibility:visible;}
    .nav__list{flex-direction:column;align-items:stretch;gap:0;}
    .nav__list li{border-bottom:1px solid var(--line);}
    .nav__list a{
        display:block;padding:20px 4px;font-size:14px;letter-spacing:.1em;
    }
    .nav__list a::after{display:none;}
    .nav__list a.is-active{color:var(--accent-dark);}
    .nav__mobile{margin-top:34px;display:grid;gap:14px;}
    .nav__mobile a.phone{color:var(--black);}
    .nav__mobile a.phone{font-size:22px;font-weight:800;}
    .burger{display:flex;margin-left:auto;}
    .header__actions{margin-left:0;}
    .header__actions .btn{display:none;}
    .header__phone{display:none;}

    .section{padding:82px 0;}
    .section--tight{padding:64px 0;}
    .directions{grid-template-columns:1fr;}
    .dir-card{min-height:400px;}
    .cards-grid,.cards-grid--4,.svc-grid,.projects-grid{grid-template-columns:repeat(2,1fr);}
    .mat-grid{grid-template-columns:repeat(2,1fr);}
    .split{grid-template-columns:1fr;gap:38px;}
    .text-cols{grid-template-columns:1fr;gap:34px;}
    .cta__inner{grid-template-columns:1fr;gap:44px;}
    .cta h2{max-width:none;}
    .footer__top{grid-template-columns:1fr 1fr;gap:40px;}
    .section-head--split{flex-direction:column;align-items:flex-start;gap:22px;}
    .section-head--split p{max-width:none;}
    .hero{min-height:0;padding:56px 0 48px;}
    .hero__inner{max-width:none;}
    .hero .hero__bg::after{background:linear-gradient(180deg,rgba(14,17,22,.55) 0%,rgba(14,17,22,.42) 34%,rgba(14,17,22,.88) 100%);}
}

@media (max-width:768px){
    :root{--header-h:64px;}
    .container{padding:0 18px;}
    .section{padding:56px 0;}
    .section--tight{padding:44px 0;}
    .cta{padding:56px 0;}
    .section-head{margin-bottom:32px;}
    .logo__mark{width:38px;height:38px;font-size:18px;}
    .logo__text b{font-size:16px;}
    .logo__text small{font-size:8.5px;letter-spacing:.34em;}
    .hero__strip{margin-top:44px;gap:12px 26px;}
    .adv-grid,.adv-grid--3{grid-template-columns:repeat(2,1fr);gap:28px 22px;}
    .split--reverse .split__media{order:1;}
    .split--reverse .split__text{order:2;}
    .chip-grid{grid-template-columns:repeat(2,1fr);}
    .mat-grid{grid-template-columns:repeat(2,1fr);gap:18px;}
    .process,.process--5,.process--4{grid-template-columns:repeat(2,1fr);gap:28px 20px;}
    .list-grid{grid-template-columns:repeat(2,1fr);}
    .form{padding:32px 24px 36px;}
    .contact-cell{padding:26px 22px 30px;}
    .contact-cell a,.contact-cell p{font-size:17px;}
    .map{height:340px;}
    .page-hero{padding:70px 0 60px;}
    .btn{height:54px;padding:0 26px;font-size:12px;}
}

@media (max-width:560px){
    .section{padding:48px 0;}
    .cta{padding:48px 0;}
    .btn{min-height:52px;}
    .cards-grid,.cards-grid--4,.svc-grid,.projects-grid,
    .adv-grid,.adv-grid--3{grid-template-columns:repeat(2,1fr);gap:24px 16px;}
    .chip-grid--2{grid-template-columns:1fr;}
    .chip-grid,.list-grid,.contact-grid{grid-template-columns:1fr;}
    .mat-grid{grid-template-columns:repeat(2,1fr);gap:14px;}
    .process,.process--5,.process--4{grid-template-columns:1fr;gap:0;}
    .process__step{padding-top:0;padding-left:34px;padding-bottom:26px;}
    .process__step::before{top:6px;}
    .process__step b{position:static;display:block;margin-bottom:6px;}
    .process::before{display:block;left:6px;right:auto;top:10px;bottom:20px;width:1px;height:auto;}
    .tile{min-height:300px;padding:26px;}
    .dir-card{min-height:340px;padding:26px;}
    .hero__buttons{flex-direction:column;align-items:stretch;}
    .hero__buttons .btn{width:100%;}
    .page-hero .btn{width:100%;}
    .footer__top{grid-template-columns:1fr;gap:34px;padding-bottom:44px;}
    .footer{padding-top:56px;}
    .footer__bottom{flex-direction:column;align-items:flex-start;gap:10px;}
    .filters{gap:8px;}
    .filter{height:46px;padding:0 16px;font-size:10.5px;}
    .split__text h2{margin-bottom:18px;}
}

@media (max-width:380px){
    .container{padding:0 16px;}
    .logo__text small{letter-spacing:.24em;}
    .form{padding:26px 18px 30px;}
}