/* РБУ БетонСервис — theme.css (hi-tech). Цвета берутся из CSS-переменных, задаваемых в Customizer. */
:root{
  --accent:#0057ff; --accent2:#00b3ff; --marquee-speed:26s;
  --bg:#f4f6fb; --panel:#fff; --line:#e4e8f0; --line-soft:#eef1f6;
  --ink:#0b1220; --muted:#5a6474; --faint:#8a94a6; --dark:#0b1220; --dark2:#0f2148;
  --f-disp:'Space Grotesk',system-ui,sans-serif; --f-mono:'JetBrains Mono',ui-monospace,monospace; --f-body:'Manrope',system-ui,sans-serif;
}
*{box-sizing:border-box}
body{margin:0;font-family:var(--f-body);color:var(--ink);background:var(--bg);text-wrap:pretty}
a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent2)}
img{max-width:100%;height:auto;display:block}
.disp{font-family:var(--f-disp)}.mono{font-family:var(--f-mono)}
.rbu-wrap{max-width:1280px;margin:0 auto;padding:0 clamp(16px,4vw,44px)}
.glass{background:rgba(255,255,255,.72);backdrop-filter:blur(14px) saturate(1.4)}

/* партнёры — бегущая лента */
.rbu-partners{overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.rbu-partners__row{display:flex;width:max-content;align-items:center;gap:56px;animation:rbuMarquee 32s linear infinite}
.rbu-partners__row:hover{animation-play-state:paused}
.rbu-partners__logo{height:46px;width:150px;opacity:.75;filter:grayscale(1);transition:opacity .25s,filter .25s}
.rbu-partners__logo:hover{opacity:1;filter:none}

/* progress */
.rbu-progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:100;background:linear-gradient(90deg,var(--accent),var(--accent2))}

/* header */
.rbu-hdr{position:sticky;top:0;z-index:60;border-bottom:1px solid var(--line);transition:box-shadow .3s}
.rbu-hdr.is-stuck{box-shadow:0 10px 30px -12px rgba(9,25,66,.2)}
.rbu-hdr__in{max-width:1280px;margin:0 auto;padding:13px clamp(16px,4vw,44px);display:flex;align-items:center;gap:clamp(12px,2vw,30px)}
.rbu-logo{display:flex;align-items:center;gap:11px;margin-right:auto;color:var(--ink)}
.rbu-logo__mark{width:42px;height:42px;border-radius:11px;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;display:grid;place-items:center;font-family:var(--f-disp);font-size:15px;font-weight:700;box-shadow:0 8px 20px -8px rgba(0,87,255,.7)}
.rbu-logo__txt{display:flex;flex-direction:column;line-height:1.05}
.rbu-logo__name{font-size:19px;font-weight:700;letter-spacing:-.01em}
.rbu-logo__sub{font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);margin-top:2px}
.rbu-nav{display:flex;gap:24px;align-items:center}
.rbu-nav a{font-size:14px;font-weight:600;color:#3a4457}
.rbu-nav a:hover,.rbu-nav .current-menu-item a{color:var(--accent)}
.rbu-hdr__cta{display:flex;align-items:center;gap:12px}
.rbu-lang{display:flex;border:1px solid #d5dbe6;border-radius:9px;overflow:hidden}
.rbu-lang button{padding:6px 10px;font-weight:600;font-size:12px;background:transparent;color:#3a4457;border:0;cursor:pointer;font-family:var(--f-mono)}
.rbu-lang button.is-active{background:var(--accent);color:#fff}
.rbu-btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:15px;padding:15px 28px;border-radius:13px;cursor:pointer;border:1px solid transparent;transition:transform .2s,box-shadow .2s,background .2s,border-color .2s}
.rbu-btn--p{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;box-shadow:0 16px 34px -14px rgba(0,87,255,.8)}
.rbu-btn--p:hover{transform:translateY(-2px);color:#fff}
.rbu-btn--o{background:#fff;color:var(--ink);border-color:#d5dbe6}
.rbu-btn--o:hover{border-color:var(--accent);color:var(--accent);background:rgba(0,87,255,.05)}
.rbu-hdr__cta .rbu-btn{font-size:13px;padding:11px 18px}

/* sections & type */
.rbu-sec{max-width:1280px;margin:0 auto;padding:clamp(56px,8vw,104px) clamp(16px,4vw,44px)}
.rbu-kicker{display:block;color:var(--accent);letter-spacing:.14em;text-transform:uppercase;font-size:13px;margin-bottom:12px;font-family:var(--f-mono)}
.rbu-h1{font-family:var(--f-disp);font-size:clamp(46px,7.4vw,104px);line-height:1;font-weight:700;letter-spacing:-.03em;margin:0 0 24px}
.rbu-h1 .g,.rbu-grad{background:linear-gradient(120deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.rbu-h2{font-family:var(--f-disp);font-size:clamp(34px,4.6vw,60px);line-height:1.02;font-weight:700;letter-spacing:-.02em;margin:0;color:var(--ink)}
.rbu-lead{font-size:clamp(17px,1.7vw,21px);line-height:1.55;color:#4a5468}

/* hero */
.rbu-hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#fff,#eef2fb)}
.rbu-hero__grid{position:absolute;inset:-2%;z-index:0;background-image:radial-gradient(#c9d3e8 1px,transparent 1px);background-size:40px 40px;opacity:.55;pointer-events:none;transition:transform .25s ease-out}
.rbu-hero__blob{position:absolute;z-index:0;border-radius:50%;pointer-events:none;transition:transform .3s ease-out}
.rbu-hero__blob--a{top:-10%;right:-6%;width:520px;height:520px;background:radial-gradient(circle,rgba(0,87,255,.16),transparent 65%)}
.rbu-hero__blob--b{bottom:-14%;left:-8%;width:460px;height:460px;background:radial-gradient(circle,rgba(0,210,200,.14),transparent 65%)}
.rbu-hero__media{position:absolute;inset:-14% 0 -6% 0;z-index:0;opacity:.16;mix-blend-mode:multiply}
.rbu-hero__media video,.rbu-hero__media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:grayscale(1) contrast(1.05)}
.rbu-hero__in{position:relative;z-index:2;max-width:1280px;margin:0 auto;padding:clamp(56px,8vw,116px) clamp(16px,4vw,44px)}
.rbu-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(0,87,255,.08);color:var(--accent);border:1px solid rgba(0,87,255,.2);font-size:12px;letter-spacing:.12em;text-transform:uppercase;padding:7px 14px;border-radius:100px;margin-bottom:26px;font-family:var(--f-mono)}
.rbu-badge__dot{width:7px;height:7px;border-radius:50%;background:var(--accent)}
.rbu-hero__stats{display:grid;grid-template-columns:repeat(4,auto);gap:clamp(20px,4vw,56px);width:max-content;margin-top:44px}
.rbu-hero__stats .n{font-family:var(--f-disp);font-size:clamp(26px,3vw,40px);font-weight:700;line-height:1}
.rbu-hero__stats .l{font-family:var(--f-mono);font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--faint);margin-top:6px}

/* marquee */
.rbu-marquee{background:var(--dark);color:#fff;overflow:hidden;padding:13px 0}
.rbu-marquee__row{display:flex;width:max-content;white-space:nowrap;animation:rbuMarquee var(--marquee-speed) linear infinite}
.rbu-marquee__row span{display:flex;gap:30px;padding-right:30px;font-family:var(--f-mono);font-size:clamp(13px,1.5vw,17px);text-transform:uppercase;letter-spacing:.08em;color:#c3ccdd;align-items:center}
.rbu-marquee b{color:var(--accent2);font-weight:400}
@keyframes rbuMarquee{to{transform:translateX(-50%)}}

/* tables */
.rbu-table-wrap{border:1px solid var(--line);border-radius:20px;overflow:hidden;background:#fff;box-shadow:0 20px 50px -30px rgba(9,25,66,.22)}
.rbu-table{width:100%;border-collapse:collapse;font-size:15px}
.rbu-table thead tr{background:var(--dark);color:#c3ccdd;font-family:var(--f-mono)}
.rbu-table th{text-align:left;padding:15px 22px;text-transform:uppercase;font-size:12px;letter-spacing:.08em;font-weight:500}
.rbu-table th.r,.rbu-table td.r{text-align:right}
.rbu-table td{padding:13px 22px;border-top:1px solid var(--line-soft)}
.rbu-table tr:nth-child(even) td{background:#fafbfd}
.rbu-table .g{font-family:var(--f-disp);font-size:17px;font-weight:700;color:var(--ink)}
.rbu-table .p{font-family:var(--f-disp);font-size:18px;font-weight:700;color:var(--accent);white-space:nowrap}
.rbu-note{font-family:var(--f-mono);font-size:12px;color:var(--faint);margin:14px 0 0}

/* cards */
.rbu-grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(14px,2vw,20px)}
.rbu-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(14px,2vw,22px)}
.rbu-card{position:relative;overflow:hidden;border:1px solid var(--line);border-radius:18px;background:#fff;padding:22px;transition:transform .3s cubic-bezier(.22,.61,.36,1),box-shadow .3s,border-color .3s}
.rbu-card:hover{transform:translateY(-6px);box-shadow:0 22px 50px -22px rgba(9,25,66,.28);border-color:var(--accent)}
.rbu-card::before{content:"";position:absolute;inset:0;border-radius:inherit;background:radial-gradient(240px circle at var(--mx,50%) var(--my,50%),rgba(0,87,255,.12),transparent 60%);opacity:0;transition:opacity .35s;pointer-events:none}
.rbu-card:hover::before{opacity:1}
.rbu-card>*{position:relative;z-index:1}
.rbu-card__m{font-family:var(--f-disp);font-size:30px;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.rbu-card__use{font-size:13px;color:var(--muted);flex:1;line-height:1.4}
.rbu-card__p{font-family:var(--f-disp);font-size:20px;font-weight:700;color:var(--accent);border-top:1px solid var(--line-soft);padding-top:12px;margin-top:6px}

/* dark section */
.rbu-dark{position:relative;overflow:hidden;background:linear-gradient(160deg,var(--dark),var(--dark2));color:#fff}
.rbu-dark__dots{position:absolute;inset:0;z-index:0;background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);background-size:38px 38px;pointer-events:none}
.rbu-dark__in{position:relative;z-index:2}
.rbu-dark .rbu-h2,.rbu-dark .rbu-kicker{color:#fff}
.rbu-dark .rbu-kicker{color:#4da0ff}

/* calculator */
.rbu-calc{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(28px,5vw,64px);align-items:start}
.rbu-calc__box{border:1px solid var(--line);border-radius:22px;background:#fff;padding:clamp(20px,3vw,34px);box-shadow:0 24px 60px -34px rgba(9,25,66,.28)}
.rbu-field label{display:block;font-family:var(--f-mono);font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--faint);margin-bottom:7px}
.rbu-field input,.rbu-field select{width:100%;background:#f7f9fc;border:1px solid #e0e5ee;border-radius:10px;color:var(--ink);padding:12px;font:inherit;font-size:15px;transition:border-color .2s,box-shadow .2s}
.rbu-field input:focus,.rbu-field select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px rgba(0,87,255,.12)}
.rbu-seg{display:flex;border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-bottom:22px;font-family:var(--f-mono)}
.rbu-seg button{flex:1;padding:12px;font-weight:600;font-size:13px;background:transparent;color:var(--muted);border:0;cursor:pointer}
.rbu-seg button.is-active{background:var(--accent);color:#fff}
.rbu-res{border-top:1px solid var(--line);padding-top:20px;display:grid;gap:11px}
.rbu-res__row{display:flex;justify-content:space-between;align-items:baseline}
.rbu-res__row .k{font-family:var(--f-mono);font-size:13px;text-transform:uppercase;color:var(--faint)}
.rbu-res__row .v{font-family:var(--f-disp);font-size:22px;font-weight:700}
.rbu-res__total{border-top:1px solid var(--line);margin-top:6px;padding-top:16px}
.rbu-res__total .v{font-size:40px;color:var(--accent);line-height:1}

/* reviews */
.rbu-stars{color:#ffb100;letter-spacing:2px}

/* timeline */
.rbu-tl{position:relative;padding-left:clamp(34px,5vw,64px)}
.rbu-tl__line{position:absolute;left:clamp(14px,2vw,24px);top:8px;bottom:8px;width:2px;background:var(--line)}
.rbu-tl__fill{position:absolute;left:clamp(14px,2vw,24px);top:8px;width:2px;height:0;background:linear-gradient(180deg,var(--accent),var(--accent2));transition:height .12s linear}
.rbu-tl__steps{display:grid;gap:clamp(22px,3vw,40px)}
.rbu-tl__step{position:relative}
.rbu-tl__dot{position:absolute;left:calc(clamp(14px,2vw,24px) - clamp(34px,5vw,64px) - 7px);top:2px;width:16px;height:16px;border-radius:50%;background:#fff;border:2px solid #cdd6e6;transition:border-color .3s,background .3s,box-shadow .3s}
.rbu-tl__step.is-on .rbu-tl__dot{border-color:var(--accent);background:var(--accent);box-shadow:0 0 0 5px rgba(0,87,255,.14)}

/* faq */
.rbu-faq{display:grid;gap:12px}
.rbu-faq__item{border:1px solid var(--line);border-radius:16px;background:#fff;overflow:hidden;transition:border-color .25s,box-shadow .25s}
.rbu-faq__item.is-open{border-color:var(--accent);box-shadow:0 18px 44px -26px rgba(0,87,255,.4)}
.rbu-faq__q{cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 22px}
.rbu-faq__q .t{font-family:var(--f-disp);font-size:clamp(16px,1.9vw,20px);font-weight:700;color:var(--ink)}
.rbu-faq__ic{flex:0 0 auto;width:22px;height:22px;position:relative;transition:transform .3s}
.rbu-faq__ic::before,.rbu-faq__ic::after{content:"";position:absolute;background:var(--accent);border-radius:2px}
.rbu-faq__ic::before{left:0;top:10px;width:22px;height:2px}
.rbu-faq__ic::after{left:10px;top:0;width:2px;height:22px}
.rbu-faq__item.is-open .rbu-faq__ic{transform:rotate(45deg)}
.rbu-faq__a{max-height:0;overflow:hidden;transition:max-height .4s ease}
.rbu-faq__a p{font-size:15px;line-height:1.65;color:#4a5468;margin:0;padding:0 22px 20px}

/* footer */
.rbu-foot{background:#fff;border-top:1px solid var(--line)}
.rbu-foot__in{max-width:1280px;margin:0 auto;padding:clamp(52px,7vw,88px) clamp(16px,4vw,44px)}
.rbu-foot__grid{display:grid;grid-template-columns:minmax(0,1.4fr) repeat(2,minmax(0,1fr));gap:clamp(28px,4vw,56px)}
.rbu-foot__about{font-size:15px;line-height:1.6;color:var(--muted);margin:0 0 14px;max-width:34ch}
.rbu-foot__links{display:flex;flex-wrap:wrap;gap:8px 16px;margin:0 0 18px;font-size:13px}
.rbu-foot__links a{color:#3a4457}
.rbu-foot__soc{display:flex;gap:10px}
.rbu-foot__soc a{width:40px;height:40px;border:1px solid var(--line);border-radius:11px;display:grid;place-items:center;color:#3a4457;font-family:var(--f-mono);font-size:12px}
.rbu-foot__h{font-family:var(--f-mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);margin:0 0 16px;font-weight:500}
.rbu-foot__phone{display:block;font-family:var(--f-disp);font-size:23px;font-weight:700;color:var(--ink);margin-bottom:6px}
.rbu-foot__addr{font-size:15px;line-height:1.6;color:var(--muted);margin:0 0 10px}
.rbu-foot__bar{border-top:1px solid var(--line);margin-top:clamp(28px,4vw,48px);padding-top:24px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center}
.rbu-foot__bar span{font-family:var(--f-mono);font-size:12px;color:var(--faint)}
.rbu-wa-float{position:fixed;right:22px;bottom:22px;z-index:70;width:58px;height:58px;border-radius:17px;background:#25D366;color:#fff;display:grid;place-items:center;font-family:var(--f-mono);font-weight:700;box-shadow:0 14px 30px -10px rgba(37,211,102,.7)}

/* модалки (марка бетона + обратный звонок) */
.rbu-cb{position:fixed;inset:0;z-index:120;display:none;align-items:center;justify-content:center;padding:20px}
.rbu-cb.is-open{display:flex}
.rbu-cb__bg{position:absolute;inset:0;background:rgba(11,18,32,.55);backdrop-filter:blur(3px)}
.rbu-cb__box{position:relative;z-index:1;width:100%;max-width:420px;background:#fff;border-radius:20px;padding:28px;box-shadow:0 40px 90px -30px rgba(9,25,66,.5);max-height:88vh;overflow:auto}

/* burger + mobile nav */
.rbu-burger{display:none;width:44px;height:44px;border:1px solid #d5dbe6;border-radius:11px;background:#fff;cursor:pointer;padding:0;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.rbu-burger span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:transform .3s,opacity .2s}
.rbu-burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.rbu-burger.is-open span:nth-child(2){opacity:0}
.rbu-burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.rbu-mnav{position:fixed;top:0;right:0;z-index:65;width:min(82vw,340px);height:100dvh;background:#fff;box-shadow:-20px 0 60px -20px rgba(9,25,66,.4);transform:translateX(100%);transition:transform .32s cubic-bezier(.22,.61,.36,1);display:flex;flex-direction:column;gap:4px;padding:88px 22px 24px;overflow-y:auto}
.rbu-mnav.is-open{transform:none}
.rbu-mnav a{font-family:var(--f-disp);font-size:19px;font-weight:700;color:var(--ink);padding:13px 4px;border-bottom:1px solid var(--line-soft)}
.rbu-mnav a:hover{color:var(--accent)}
.rbu-mnav-bg{position:fixed;inset:0;z-index:64;background:rgba(11,18,32,.5);opacity:0;visibility:hidden;transition:opacity .3s}
.rbu-mnav-bg.is-open{opacity:1;visibility:visible}

/* reveal */
[data-reveal]{opacity:0;transform:translateY(32px);transition:opacity .7s cubic-bezier(.22,.61,.36,1),transform .7s cubic-bezier(.22,.61,.36,1)}
[data-reveal].is-in{opacity:1;transform:none}

/* breadcrumbs */
.rbu-crumb{font-family:var(--f-mono);font-size:12px;color:var(--faint);margin-bottom:16px}

@media(max-width:900px){
  .rbu-nav,.rbu-hdr__wa{display:none}
  .rbu-burger{display:flex}
  .rbu-calc,.rbu-grid-4,.rbu-grid-3,.rbu-foot__grid,.rbu-hero__stats{grid-template-columns:1fr!important}
  .rbu-hero__stats{gap:20px;width:100%;grid-template-columns:1fr 1fr!important}
  .rbu-calc__box{position:static!important}
  .rbu-calc>div:first-child{position:static!important}
  .rbu-sec[style*="grid-template-columns:minmax"],.rbu-sec [style*="grid-template-columns:minmax"]{grid-template-columns:1fr!important}
  .rbu-sec[style*="repeat(2,1fr)"],.rbu-sec[style*="repeat(3,1fr)"],.rbu-sec[style*="repeat(4,1fr)"],.rbu-sec [style*="repeat(3,1fr)"],.rbu-sec [style*="repeat(4,1fr)"],.rbu-sec [style*="repeat(2,1fr)"]{grid-template-columns:1fr!important}
  .rbu-h1{font-size:clamp(38px,11vw,60px)!important}
  .rbu-foot__bar{flex-direction:column;align-items:flex-start;gap:8px}
  /* компактная таблица цен: скрываем колонку характеристик, уменьшаем отступы */
  .rbu-col-spec{display:none}
  .rbu-ptable th,.rbu-ptable td{padding:11px 12px}
  .rbu-ptable .g{font-size:15px}
  .rbu-ptable .p{font-size:16px}
  .rbu-table th,.rbu-table td{padding:11px 12px}
  .rbu-about-grid{grid-template-columns:1fr!important}
}
@media(max-width:560px){
  .rbu-hero__stats{grid-template-columns:1fr 1fr!important}
  .rbu-res__total .v{font-size:32px!important}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  [data-reveal]{opacity:1;transform:none;transition:none}
  .rbu-marquee__row{animation:none}
}