/* ============================================================
   РУТА БЕТОН — design system
   Premium industrial · orange accent
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@500;600;700;800;900&family=Manrope:wght@400;500;600;700&display=swap');

:root{
  /* palette */
  --ink:        #14161A;   /* deepest */
  --graphite:   #1B1E24;   /* dark surface */
  --slate:      #23272F;   /* elevated dark */
  --steel:      #2E333D;
  --line-dk:    rgba(255,255,255,.10);
  --line-dk-2:  rgba(255,255,255,.06);

  --paper:      #F5F3EF;   /* warm off-white */
  --paper-2:    #EDEAE3;
  --card:       #FFFFFF;
  --line:       #E2DED5;
  --line-2:     #ECE8E0;

  --text:       #15171B;   /* on light */
  --text-soft:  #4B5159;
  --muted:      #868C95;
  --text-inv:   #F3F1EC;   /* on dark */
  --muted-inv:  #9AA1AB;

  --accent:     #D26A4A;
  --accent-2:   #DB8A4B;
  --accent-dk:  #A8543A;
  --accent-soft:#F8ECE4;

  --ok:         #2E8B57;

  /* type */
  --display: 'Archivo', system-ui, sans-serif;
  --body:    'Manrope', system-ui, sans-serif;

  /* metrics */
  --maxw: 1240px;
  --gut: clamp(20px, 5vw, 64px);
  --radius: 4px;
  --radius-lg: 8px;
  --shadow: 0 1px 2px rgba(20,22,26,.04), 0 12px 32px -12px rgba(20,22,26,.14);
  --shadow-lg: 0 30px 70px -30px rgba(20,22,26,.35);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--body);
  color:var(--text);
  background:var(--paper);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}

/* ---------- type ---------- */
.display, h1,h2,h3,h4{font-family:var(--display);font-weight:800;line-height:1.04;letter-spacing:-.01em}
.eyebrow{
  font-family:var(--display);font-weight:700;font-size:13px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--accent);display:inline-flex;align-items:center;gap:10px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--accent);display:inline-block}
.eyebrow.center{justify-content:center}

h1{font-size:clamp(38px,6vw,76px);font-weight:900}
h2{font-size:clamp(30px,4.2vw,52px)}
h3{font-size:clamp(20px,2.4vw,26px)}
.lead{font-size:clamp(17px,1.6vw,20px);color:var(--text-soft);max-width:60ch}
.kicker-num{font-family:var(--display);font-weight:900}

/* ---------- layout ---------- */
.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gut)}
section{padding-block:clamp(64px,9vw,120px)}
.section-dark{background:var(--graphite);color:var(--text-inv)}
.section-ink{background:var(--ink);color:var(--text-inv)}
.section-dark .lead,.section-ink .lead{color:var(--muted-inv)}
.sec-head{max-width:64ch}
.sec-head.center{margin-inline:auto;text-align:center}
.sec-head h2{margin-top:18px}
.sec-head p{margin-top:18px}

.grid{display:grid;gap:24px}
.cols-2{grid-template-columns:repeat(2,1fr)}
.cols-3{grid-template-columns:repeat(3,1fr)}
.cols-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:960px){.cols-3,.cols-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.cols-2,.cols-3,.cols-4{grid-template-columns:1fr}}

/* ---------- buttons ---------- */
.btn{
  font-family:var(--display);font-weight:700;font-size:15px;letter-spacing:.01em;
  display:inline-flex;align-items:center;gap:10px;cursor:pointer;border:none;
  padding:15px 26px;border-radius:var(--radius);transition:.18s ease;white-space:nowrap;
}
.btn svg{width:18px;height:18px}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-2);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:inherit;border:1px solid currentColor;opacity:.92}
.btn-ghost:hover{background:rgba(255,255,255,.06);opacity:1}
.section-dark .btn-ghost,.section-ink .btn-ghost{border-color:var(--line-dk)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#000}
.btn-lg{padding:18px 32px;font-size:16px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(20,22,26,.92);
  backdrop-filter:blur(14px);border-bottom:1px solid var(--line-dk-2);color:var(--text-inv)}
.nav{display:flex;align-items:center;gap:32px;height:74px}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--display);font-weight:900;
  font-size:19px;letter-spacing:.02em;color:#fff}
.brand .mark{width:38px;height:38px;flex:none;display:grid;place-items:center;
  background:var(--accent);border-radius:5px;position:relative;overflow:hidden}
.brand .mark svg{width:22px;height:22px}
.brand-logo{height:40px;width:auto;display:block}
.brand-logo--foot{height:56px}
@media(max-width:520px){.brand-logo{height:33px}}
.brand small{display:block;font-family:var(--body);font-weight:600;font-size:10px;
  letter-spacing:.22em;color:var(--accent-2);margin-top:1px}
.nav-links{display:flex;gap:4px;margin-left:8px}
.nav-links a{font-family:var(--display);font-weight:600;font-size:14.5px;color:var(--muted-inv);
  padding:9px 14px;border-radius:var(--radius);transition:.15s}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-links a.active{color:#fff}
.nav-links a.active::after{content:"";display:block;height:2px;background:var(--accent);
  margin-top:6px;border-radius:2px}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.nav-phone{font-family:var(--display);font-weight:700;font-size:15px;color:#fff;display:flex;
  align-items:center;gap:8px}
.nav-phone svg{width:16px;height:16px;color:var(--accent-2)}
.lang{display:flex;border:1px solid var(--line-dk);border-radius:var(--radius);overflow:hidden}
.lang button{font-family:var(--display);font-weight:700;font-size:12px;letter-spacing:.05em;
  background:transparent;color:var(--muted-inv);border:none;padding:7px 11px;cursor:pointer;transition:.15s}
.lang button.on{background:var(--accent);color:#fff}
.burger{display:none;background:none;border:none;color:#fff;cursor:pointer;width:30px;height:30px}
@media(max-width:1080px){
  .nav-links{position:fixed;inset:74px 0 auto 0;flex-direction:column;background:var(--graphite);
    padding:14px var(--gut);gap:2px;border-bottom:1px solid var(--line-dk);
    transform:translateY(-130%);transition:.3s;box-shadow:var(--shadow-lg)}
  .nav-links.open{transform:translateY(0)}
  .nav-links a{padding:14px 8px;font-size:17px;border-bottom:1px solid var(--line-dk-2)}
  .nav-links a.active::after{display:none}
  .nav-phone span{display:none}
  .burger{display:grid;place-items:center}
}

/* ---------- chips / cards ---------- */
.chip{display:inline-flex;align-items:center;gap:8px;font-family:var(--display);font-weight:700;
  font-size:12.5px;letter-spacing:.04em;text-transform:uppercase;
  padding:7px 13px;border:1px solid var(--line);border-radius:100px;color:var(--text-soft)}
.section-dark .chip,.section-ink .chip{border-color:var(--line-dk);color:var(--muted-inv)}
.chip .dot{width:7px;height:7px;border-radius:50%;background:var(--accent)}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:30px;transition:.2s}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--line-2)}
.card .ic{width:52px;height:52px;border-radius:var(--radius);display:grid;place-items:center;
  background:var(--accent-soft);color:var(--accent);margin-bottom:20px}
.card .ic svg{width:26px;height:26px}
.card h3{margin-bottom:10px}
.card p{color:var(--text-soft);font-size:15.5px}

/* dark service card variant */
.card-dk{background:var(--slate);border:1px solid var(--line-dk);color:var(--text-inv)}
.card-dk p{color:var(--muted-inv)}
.card-dk .ic{background:rgba(210,106,74,.18);color:var(--accent-2)}
.card-dk:hover{border-color:rgba(210,106,74,.45)}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:var(--text-inv);padding-top:72px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
@media(max-width:860px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.foot-grid{grid-template-columns:1fr}}
.foot-grid h4{font-size:14px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-inv);
  margin-bottom:18px;font-weight:700}
.foot-grid a,.foot-grid li{color:var(--text-inv);opacity:.82;font-size:15px;margin-bottom:11px;display:block}
.foot-grid a:hover{opacity:1;color:var(--accent-2)}
.foot-bottom{border-top:1px solid var(--line-dk-2);margin-top:56px;padding:26px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:var(--muted-inv)}

/* ---------- utilities ---------- */
.stat-row{display:flex;gap:0;flex-wrap:wrap}
.stat{flex:1;min-width:140px;padding:4px 28px 4px 0}
.stat b{font-family:var(--display);font-weight:900;font-size:clamp(34px,4vw,46px);display:block;line-height:1}
.stat span{font-size:13.5px;color:var(--muted-inv);text-transform:uppercase;letter-spacing:.08em;margin-top:8px;display:block}
.accent{color:var(--accent)}
.reveal{opacity:0;transform:translateY(22px);transition:.7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
.divider{height:1px;background:var(--line);border:none}
.section-dark .divider{background:var(--line-dk)}

/* page hero (interior pages) */
.page-hero{background:var(--ink);color:var(--text-inv);padding-block:clamp(56px,8vw,88px);
  border-bottom:1px solid var(--line-dk-2);position:relative;overflow:hidden}
.page-hero .crumbs{font-size:13px;color:var(--muted-inv);margin-bottom:22px;letter-spacing:.04em}
.page-hero .crumbs a:hover{color:var(--accent-2)}
.page-hero h1{font-size:clamp(34px,5vw,60px)}
.page-hero p{margin-top:18px;max-width:60ch;color:var(--muted-inv);font-size:18px}
.grid-texture{position:absolute;inset:0;opacity:.5;pointer-events:none;
  background-image:linear-gradient(var(--line-dk-2) 1px,transparent 1px),linear-gradient(90deg,var(--line-dk-2) 1px,transparent 1px);
  background-size:54px 54px;mask-image:radial-gradient(circle at 80% 20%,#000,transparent 70%)}