/* ===== Fonts (self-hosted, Cyrillic + Latin) ===== */
@font-face{font-family:"Oswald";src:url(../fonts/oswald-cyrillic-wght-normal.woff2) format("woff2");font-weight:200 700;font-display:swap;unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:"Oswald";src:url(../fonts/oswald-latin-wght-normal.woff2) format("woff2");font-weight:200 700;font-display:swap;unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+20BD,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Golos";src:url(../fonts/golos-text-cyrillic-wght-normal.woff2) format("woff2");font-weight:400 900;font-display:swap;unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:"Golos";src:url(../fonts/golos-text-latin-wght-normal.woff2) format("woff2");font-weight:400 900;font-display:swap;unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+20BD,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Plex Mono";src:url(../fonts/ibm-plex-mono-cyrillic-400-normal.woff2) format("woff2");font-weight:400;font-display:swap;unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:"Plex Mono";src:url(../fonts/ibm-plex-mono-latin-400-normal.woff2) format("woff2");font-weight:400;font-display:swap;unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+20BD,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Plex Mono";src:url(../fonts/ibm-plex-mono-cyrillic-600-normal.woff2) format("woff2");font-weight:600;font-display:swap;unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:"Plex Mono";src:url(../fonts/ibm-plex-mono-latin-600-normal.woff2) format("woff2");font-weight:600;font-display:swap;unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+20BD,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}

/* ===== Tokens ===== */
:root{
  --bg:#161719; --bg-2:#1c1d20; --surface:#242528; --surface-2:#2e3034;
  --line:rgba(236,234,228,.12); --line-strong:rgba(236,234,228,.24);
  --text:#f3f1ea; --muted:#acada8;
  --paper:#e9e7e1; --paper-2:#f7f6f2; --ink:#141414; --ink-muted:#54565a; --ink-line:rgba(20,20,20,.14); --bp:rgba(36,82,140,.10); --bp-strong:rgba(36,82,140,.28);
  --accent:#ffc400; --accent-ink:#141414; --accent-soft:rgba(255,196,0,.22);
  --ok:#3ecf8e; --danger:#ff5252; --danger-ink:#b3261e;
  --f-display:"Oswald","Arial Narrow",system-ui,sans-serif;
  --f-body:"Golos",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --f-mono:"Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --r-s:4px; --r:8px; --r-l:14px;
  --wrap:1240px; --gut:clamp(16px,4vw,40px);
  --ease:cubic-bezier(.2,0,0,1); --ease-out:cubic-bezier(.16,1,.3,1);
  --t-q:160ms; --t-s:320ms; --t-l:640ms;
  --hdr:68px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--hdr) + 12px);-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:400 16px/1.55 var(--f-body);-webkit-font-smoothing:antialiased;overflow-x:clip;-webkit-tap-highlight-color:transparent}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;touch-action:manipulation}
h1,h2,h3{font-family:var(--f-display);font-weight:700;line-height:1.05;margin:0;text-wrap:balance;letter-spacing:-.01em}
h2{font-size:clamp(30px,4.4vw,56px);text-transform:uppercase}
h3{font-size:20px;}
p{margin:0}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gut)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:fixed;left:12px;top:-60px;z-index:100;background:var(--accent);color:#111;padding:10px 14px;border-radius:var(--r);font-weight:600;transition:top var(--t-q) var(--ease)}
.skip:focus{top:12px}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px}

/* ===== Buttons ===== */
.btn{--h:52px;display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:var(--h);padding:0 24px;border:0;border-radius:var(--r);font:600 15px/1 var(--f-body);letter-spacing:.01em;text-decoration:none;position:relative;overflow:hidden;isolation:isolate;transition:transform var(--t-q) var(--ease),background-color var(--t-q) var(--ease),color var(--t-q) var(--ease),box-shadow var(--t-q) var(--ease)}
.btn:active{transform:translateY(1px) scale(.985)}
.btn--sm{--h:42px;padding:0 18px;font-size:14px}
.btn--block{width:100%}
.btn--accent{background:var(--accent);color:#111}
.btn--accent::before{content:"";position:absolute;inset:0;z-index:-1;background:repeating-linear-gradient(-45deg,rgba(0,0,0,.14) 0 10px,transparent 10px 20px);transform:translateX(-101%);transition:transform var(--t-s) var(--ease-out)}
.btn--accent:hover::before{transform:none}
.btn--accent:hover{box-shadow:0 8px 24px -8px rgba(255,196,0,.7)}
.btn--ghost{background:rgba(255,255,255,.04);color:var(--text);box-shadow:inset 0 0 0 1px var(--line-strong);backdrop-filter:blur(6px)}
.btn--ghost:hover{background:rgba(255,255,255,.1);box-shadow:inset 0 0 0 1px var(--text)}
.btn--dark{background:var(--ink);color:var(--paper)}
.btn--dark:hover{background:#000}
.btn[aria-busy="true"]{pointer-events:none;opacity:.8}

/* ===== Header ===== */
.hdr{position:fixed;inset:0 0 auto;z-index:50;height:var(--hdr);transition:background-color var(--t-s) var(--ease),box-shadow var(--t-s) var(--ease)}
.hdr.is-solid{background:rgba(15,17,19,.88);backdrop-filter:blur(12px);box-shadow:0 1px 0 var(--line)}
.hdr__in{height:100%;display:flex;align-items:center;gap:28px}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);flex:none}
.logo__mark{width:36px;height:36px}
.logo__txt{font:800 18px/1 var(--f-display);text-transform:uppercase;letter-spacing:.02em;display:flex;align-items:baseline;gap:5px}
.logo__txt i{font:italic 500 13px/1 var(--f-body);text-transform:none;color:var(--accent)}
.nav{display:flex;gap:22px;margin-left:auto}
.nav a{font-size:14px;color:var(--muted);text-decoration:none;position:relative;padding:6px 0;transition:color var(--t-q) var(--ease)}
.nav a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform var(--t-s) var(--ease-out)}
.nav a:hover,.nav a.is-active{color:var(--text)}
.nav a:hover::after,.nav a.is-active::after{transform:none}
.hdr__cta{display:flex;align-items:center;gap:16px}
.hdr__phone{font:600 15px/1 var(--f-mono);text-decoration:none;white-space:nowrap}
.hdr__phone:hover{color:var(--accent)}
.burger{display:none;margin-left:auto;width:44px;height:44px;border:0;background:transparent;position:relative}
.burger span{position:absolute;left:11px;right:11px;height:2px;background:var(--text);transition:transform var(--t-s) var(--ease)}
.burger span:first-child{top:17px}.burger span:last-child{top:25px}
.burger[aria-expanded="true"] span:first-child{transform:translateY(4px) rotate(45deg)}
.burger[aria-expanded="true"] span:last-child{transform:translateY(-4px) rotate(-45deg)}
.mnav{position:absolute;top:var(--hdr);left:0;right:0;background:var(--bg-2);border-bottom:1px solid var(--line);padding:8px var(--gut) 20px;display:grid}
.mnav[hidden]{display:none}
.mnav a{padding:14px 0;border-bottom:1px solid var(--line);text-decoration:none;font:600 18px/1.2 var(--f-display);text-transform:uppercase}

/* ===== Hero ===== */
.hero{position:relative;min-height:min(100svh,920px);display:flex;align-items:center;padding:calc(var(--hdr) + 40px) 0 72px;overflow:hidden;background:#0b0c0d}
.hero__bg{position:absolute;inset:0}
.hero__bg img{width:100%;height:100%;object-fit:cover;object-position:62% 50%;transform-origin:60% 50%}
.hero__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,12,13,.94) 0%,rgba(11,12,13,.78) 38%,rgba(11,12,13,.25) 70%,rgba(11,12,13,.55) 100%),linear-gradient(0deg,rgba(11,12,13,.9),transparent 35%)}
.hero__grid{position:relative;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.85fr);gap:56px;align-items:end;width:100%}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font:500 13px/1 var(--f-mono);text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:22px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}
.hero__h{font-size:clamp(46px,8.2vw,100px);font-weight:800;line-height:.92;text-transform:uppercase;letter-spacing:-.015em}
.hero__h .line{display:block;overflow:hidden;padding-bottom:.04em}
.hero__h .line>span{display:inline-block}
.accent{color:var(--accent)}
.hero__sub{max-width:520px;margin-top:24px;font-size:clamp(16px,1.5vw,19px);color:#cfd1d2}
.hero__btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero__facts{list-style:none;padding:0;margin:44px 0 0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;max-width:640px;border-top:1px solid var(--line-strong)}
.hero__facts li{padding:16px 16px 0 0;display:grid;gap:6px}
.hero__facts li+li{padding-left:16px;border-left:1px solid var(--line)}
.hero__facts b{font:700 22px/1 var(--f-display);}
.hero__facts span{font-size:13px;color:var(--muted);line-height:1.35}
.qform{background:rgba(21,24,27,.82);backdrop-filter:blur(14px);border:1px solid var(--line-strong);border-radius:var(--r-l);padding:26px;box-shadow:0 30px 60px -30px rgba(0,0,0,.8);position:relative}
.qform::before{content:"";position:absolute;left:26px;right:26px;top:-1px;height:3px;background:var(--accent);border-radius:0 0 3px 3px}
.qform__t{font:700 22px/1.1 var(--f-display);text-transform:uppercase}
.qform__s{color:var(--muted);font-size:14px;margin-top:6px}
.qform__head{margin-bottom:18px}
.qform__note{font-size:12.5px;color:var(--muted);margin-top:12px;line-height:1.4}
.hazard{position:absolute;left:0;right:0;bottom:0;height:10px;background:repeating-linear-gradient(-45deg,var(--accent) 0 14px,#111 14px 28px);opacity:.9}

/* ===== Forms ===== */
.lead{display:grid;gap:14px}
.field{display:grid;gap:6px;min-width:0}
.field label,.seg__l{font-size:13px;font-weight:600;color:var(--muted)}
.field input:not([type=range]),.field select,.field textarea{width:100%;min-height:48px;padding:12px 14px;border-radius:var(--r);border:1px solid var(--line-strong);background:var(--bg);color:var(--text);transition:border-color var(--t-q) var(--ease),box-shadow var(--t-q) var(--ease)}
.field textarea{resize:vertical;min-height:84px}
.field select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23a6aaae' stroke-width='2'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:38px}
.field select option{background:#15181b;color:#eceae4}
.field input:hover,.field select:hover,.field textarea:hover{border-color:var(--muted)}
.field input:focus-visible,.field select:focus-visible,.field textarea:focus-visible{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.field input[type=date]{color-scheme:dark}
.field.has-err input,.field.has-err select{border-color:var(--danger)}
.err{font-size:12.5px;color:var(--danger);min-height:0}
.err:empty{display:none}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.check{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--muted);cursor:pointer;line-height:1.4;padding:2px 0}
.check input{width:20px;height:20px;margin:0;flex:none;accent-color:var(--accent)}
.hint{font-size:12.5px;color:var(--muted)}
.success{display:grid;gap:12px;justify-items:start;padding:8px 0;animation:pop var(--t-l) var(--ease-out) both}
.success__ic{width:56px;height:56px;border-radius:50%;background:var(--accent);display:grid;place-items:center}
.success__ic svg{width:28px;height:28px}
.success__ic path{stroke-dasharray:30;stroke-dashoffset:30;animation:draw 500ms 200ms var(--ease-out) forwards}
.success h3{font-size:24px;text-transform:uppercase}
.success p{color:var(--muted);font-size:14px}
.success code{font:600 15px var(--f-mono);color:var(--text)}
.success .btn{margin-top:4px}
@keyframes draw{to{stroke-dashoffset:0}}
@keyframes pop{from{opacity:0;transform:translateY(10px) scale(.98)}}
.shake{animation:shake 340ms var(--ease)}
@keyframes shake{25%{transform:translateX(-6px)}50%{transform:translateX(5px)}75%{transform:translateX(-3px)}}

/* ===== Stats ===== */
.stats{background:var(--bg);border-bottom:1px solid var(--line)}
.stats__grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}
.stat{padding:34px 24px 34px 0;display:grid;gap:8px}
.stat+.stat{padding-left:24px;border-left:1px solid var(--line)}
.stat b{font:800 clamp(36px,4vw,54px)/1 var(--f-display);font-variant-numeric:tabular-nums}
.stat span{color:var(--muted);font-size:14px;max-width:220px}

/* ===== Sections ===== */
.sec{padding:clamp(72px,9vw,128px) 0}
.sec--paper{background:var(--paper);color:var(--ink)}
.sec--dark{background:var(--bg-2)}
.sec__head{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;margin-bottom:clamp(32px,4vw,56px)}
.kicker{font:500 13px/1 var(--f-mono);text-transform:uppercase;letter-spacing:.08em;color:var(--accent);margin-bottom:16px}
.sec--paper .kicker{color:var(--accent-ink)}
.lead-p{margin-top:18px;max-width:560px;font-size:17px;color:var(--muted)}
.sec--paper .lead-p{color:var(--ink-muted)}

/* ===== Catalog ===== */
.vat{display:inline-flex;padding:4px;border-radius:999px;background:var(--paper-2);box-shadow:inset 0 0 0 1px var(--ink-line);flex:none}
.vat__b{border:0;background:transparent;padding:10px 16px;border-radius:999px;font-size:14px;font-weight:600;color:var(--ink-muted);min-height:40px;transition:background-color var(--t-q) var(--ease),color var(--t-q) var(--ease)}
.vat__b[aria-pressed="true"]{background:var(--ink);color:var(--paper)}
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}
.chip{border:0;background:var(--paper-2);box-shadow:inset 0 0 0 1px var(--ink-line);color:var(--ink);border-radius:999px;min-height:44px;padding:0 18px;font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:8px;transition:background-color var(--t-q) var(--ease),color var(--t-q) var(--ease),box-shadow var(--t-q) var(--ease)}
.chip:hover{box-shadow:inset 0 0 0 1px var(--ink)}
.chip small{font:500 12px var(--f-mono);color:var(--ink-muted)}
.chip[aria-pressed="true"]{background:var(--accent);color:#111;box-shadow:none}
.chip[aria-pressed="true"] small{color:#3b1a05}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,340px),1fr));gap:20px}
.card{background:var(--paper-2);border-radius:var(--r-l);overflow:hidden;display:flex;flex-direction:column;box-shadow:0 1px 0 var(--ink-line),0 0 0 1px var(--ink-line);transition:transform var(--t-s) var(--ease-out),box-shadow var(--t-s) var(--ease-out)}
.card:hover{transform:translateY(-4px);box-shadow:0 0 0 1px var(--ink-line),0 24px 40px -24px rgba(21,23,26,.45)}
.card.is-in{animation:cardIn 420ms var(--ease-out) both;animation-delay:calc(var(--i,0) * 50ms)}
@keyframes cardIn{from{opacity:0;transform:translateY(16px)}}
.card__media{position:relative;aspect-ratio:4/3;overflow:hidden;background:#d8d6cf}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform 900ms var(--ease-out)}
.card:hover .card__media img{transform:scale(1.05)}
.tag{position:absolute;left:12px;top:12px;background:rgba(15,17,19,.82);color:var(--text);backdrop-filter:blur(6px);font:500 12px/1 var(--f-mono);padding:7px 10px;border-radius:var(--r-s);text-transform:uppercase;letter-spacing:.04em}
.units{position:absolute;right:12px;top:12px;background:var(--paper-2);color:var(--ink);font:600 12px/1 var(--f-mono);padding:7px 10px;border-radius:var(--r-s)}
.card__body{padding:20px;display:flex;flex-direction:column;gap:14px;flex:1}
.card__body h3{font-size:21px;text-transform:uppercase;}
.card__use{font-size:14px;color:var(--ink-muted);margin-top:-6px}
.specs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));margin:0;border-top:1px solid var(--ink-line);border-bottom:1px solid var(--ink-line)}
.specs div{padding:10px 8px 10px 0;min-width:0}
.specs div+div{padding-left:10px;border-left:1px solid var(--ink-line)}
.specs dt{font-size:11.5px;color:var(--ink-muted);line-height:1.25}
.specs dd{margin:4px 0 0;font:600 14px/1.2 var(--f-mono);overflow-wrap:anywhere}
.price{display:flex;justify-content:space-between;align-items:flex-end;gap:12px;flex-wrap:wrap}
.price__h{font:800 30px/1 var(--f-display);font-variant-numeric:tabular-nums}
.price__h small{font:500 14px var(--f-body);color:var(--ink-muted);margin-left:4px}
.price__s{font:500 13px/1.4 var(--f-mono);color:var(--ink-muted);text-align:right}
.price__s b{color:var(--ink);font-weight:600}
.card__actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:auto}
.card__actions .btn{--h:46px;padding:0 12px;font-size:14px}
.btn--line{background:transparent;color:var(--ink);box-shadow:inset 0 0 0 1px var(--ink-line)}
.btn--line:hover{box-shadow:inset 0 0 0 1px var(--ink)}
.price__h,.price__s b,.receipt__total b{transition:opacity var(--t-q) var(--ease)}
.is-swap .price__h,.is-swap .price__s b{opacity:0}

/* ===== Calculator ===== */
.calc{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,440px);gap:clamp(24px,4vw,56px);align-items:start}
.calc__form{display:grid;gap:22px}
.field__row{display:flex;justify-content:space-between;align-items:baseline;gap:12px}
.field__row output{font:600 18px var(--f-mono);color:var(--text)}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:28px;background:transparent;margin:0;--p:30%}
input[type=range]::-webkit-slider-runnable-track{height:6px;border-radius:3px;background:linear-gradient(90deg,var(--accent) var(--p),var(--surface-2) var(--p))}
input[type=range]::-moz-range-track{height:6px;border-radius:3px;background:var(--surface-2)}
input[type=range]::-moz-range-progress{height:6px;border-radius:3px;background:var(--accent)}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:24px;height:24px;margin-top:-9px;border-radius:50%;background:var(--text);border:4px solid var(--accent);transition:transform var(--t-q) var(--ease)}
input[type=range]::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:var(--text);border:4px solid var(--accent)}
input[type=range]:active::-webkit-slider-thumb{transform:scale(1.15)}
input[type=range]:focus-visible{outline:none}
input[type=range]:focus-visible::-webkit-slider-thumb{box-shadow:0 0 0 4px var(--accent-soft)}
.seg{border:0;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:6px;min-width:0}
.seg--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.seg__l{grid-column:1/-1;margin-bottom:2px;padding:0}
.seg label{position:relative}
.seg input{position:absolute;opacity:0;inset:0;margin:0;cursor:pointer}
.seg span{display:flex;align-items:center;justify-content:center;text-align:center;min-height:46px;padding:6px 10px;border-radius:var(--r);background:var(--bg);box-shadow:inset 0 0 0 1px var(--line-strong);font-size:14px;font-weight:600;color:var(--muted);transition:background-color var(--t-q) var(--ease),color var(--t-q) var(--ease),box-shadow var(--t-q) var(--ease);line-height:1.2}
.seg input:hover+span{color:var(--text)}
.seg input:checked+span{background:var(--accent-soft);color:var(--text);box-shadow:inset 0 0 0 2px var(--accent)}
.seg input:focus-visible+span{outline:2px solid var(--accent);outline-offset:2px}
.check--dark input:disabled+span{opacity:.45}
.check--dark[data-disabled="true"]{cursor:not-allowed}
.receipt{position:sticky;top:calc(var(--hdr) + 20px);background:var(--paper-2);color:var(--ink);border-radius:var(--r-l);padding:22px;display:grid;gap:16px;box-shadow:0 30px 60px -30px rgba(0,0,0,.7)}
.receipt::after{content:"";position:absolute;left:0;right:0;bottom:-8px;height:8px;background:radial-gradient(circle at 8px 0,var(--paper-2) 7px,transparent 7.5px) 0 0/16px 8px repeat-x}
.receipt__top{display:grid;grid-template-columns:112px 1fr;gap:14px;align-items:center}
.receipt__top img{width:112px;height:84px;object-fit:cover;border-radius:var(--r)}
.receipt__eq{font:700 18px/1.15 var(--f-display);text-transform:uppercase}
.receipt__use{font-size:13px;color:var(--ink-muted);margin-top:4px}
.receipt__lines{list-style:none;margin:0;padding:14px 0 0;border-top:1px dashed var(--ink-line);display:grid;gap:10px}
.receipt__lines li{display:flex;justify-content:space-between;gap:12px;font-size:14px;animation:lineIn 280ms var(--ease-out) both}
.receipt__lines li span{color:var(--ink-muted)}
.receipt__lines li b{font:600 14px var(--f-mono);white-space:nowrap;font-variant-numeric:tabular-nums}
.receipt__lines li.disc b{color:#13804f}
@keyframes lineIn{from{opacity:0;transform:translateX(-6px)}}
.receipt__total{display:flex;justify-content:space-between;align-items:flex-end;gap:12px;padding-top:14px;border-top:2px solid var(--ink)}
.receipt__total span{font-weight:700;text-transform:uppercase;font-size:14px;display:grid}
.receipt__total small{font:500 12px var(--f-mono);color:var(--ink-muted);text-transform:none}
.receipt__total b{font:800 clamp(34px,4vw,44px)/1 var(--f-display);font-variant-numeric:tabular-nums;white-space:nowrap}
.receipt__note{font-size:12.5px;color:var(--ink-muted);line-height:1.4}

/* ===== Advantages ===== */
.adv{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:2px solid var(--ink)}
.adv li{padding:28px 28px 32px 0;border-bottom:1px solid var(--ink-line);display:grid;gap:10px;align-content:start}
.adv li:not(:nth-child(3n+1)){padding-left:28px;border-left:1px solid var(--ink-line)}
.adv__n{font:600 13px var(--f-mono);color:var(--accent-ink)}
.adv h3{font-size:22px;text-transform:uppercase;}
.adv p{color:var(--ink-muted);font-size:15px}

/* ===== Steps ===== */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:20px;position:relative;counter-reset:s}
.steps::before{content:"";position:absolute;left:0;right:0;top:27px;height:2px;background:var(--line);}
.steps::after{content:"";position:absolute;left:0;right:0;top:27px;height:2px;background:var(--accent);transform:scaleX(var(--prog,0));transform-origin:left;transition:transform 1200ms var(--ease-out)}
.step{position:relative;display:grid;gap:10px;align-content:start;z-index:1}
.step__n{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;background:var(--bg-2);box-shadow:inset 0 0 0 2px var(--line-strong);font:700 22px var(--f-display);transition:background-color var(--t-s) var(--ease),box-shadow var(--t-s) var(--ease),color var(--t-s) var(--ease)}
.step.is-visible .step__n{background:var(--accent);color:#111;box-shadow:none;transition-delay:calc(var(--i,0) * 160ms + 200ms)}
.step h3{font-size:20px;text-transform:uppercase;margin-top:8px}
.step p{color:var(--muted);font-size:14.5px}

/* ===== B2B ===== */
.b2b{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(32px,5vw,72px);align-items:center}
.b2b__media{position:relative;border-radius:var(--r-l);overflow:hidden}
.b2b__media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.b2b__stamp{position:absolute;right:18px;bottom:18px;width:108px;height:108px;border-radius:50%;display:grid;place-items:center;text-align:center;font:800 20px/1 var(--f-display);color:var(--accent);border:3px solid var(--accent);background:rgba(15,17,19,.7);transform:rotate(-12deg)}
.docs{list-style:none;padding:0;margin:28px 0 32px;display:grid}
.docs li{display:grid;grid-template-columns:minmax(0,220px) minmax(0,1fr);gap:16px;padding:14px 0;border-bottom:1px solid var(--ink-line)}
.docs li:first-child{border-top:1px solid var(--ink-line)}
.docs b{font-weight:700}
.docs span{color:var(--ink-muted);font-size:15px}

/* ===== Area / Map ===== */
.area{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(32px,5vw,72px);align-items:center}
.zones{list-style:none;padding:0;margin:28px 0 0;display:grid;gap:8px}
.zones button{width:100%;display:grid;grid-template-columns:18px auto;column-gap:14px;row-gap:2px;text-align:left;padding:14px 16px;border:0;border-radius:var(--r);background:var(--surface);box-shadow:inset 0 0 0 1px var(--line);transition:background-color var(--t-q) var(--ease),box-shadow var(--t-q) var(--ease)}
.zones button:hover,.zones button[aria-pressed="true"]{background:var(--surface-2);box-shadow:inset 0 0 0 1px var(--accent)}
.zones .sw{grid-row:1/3;width:18px;height:18px;border-radius:4px;margin-top:2px}
.zones b{font-size:16px}
.zones span:not(.sw){font-size:14px;color:var(--muted)}
.sw--0{background:rgba(255,196,0,.55)}.sw--1{background:rgba(255,196,0,.3)}.sw--2{background:rgba(255,196,0,.14);box-shadow:inset 0 0 0 1px rgba(255,196,0,.5)}.sw--3{background:transparent;box-shadow:inset 0 0 0 2px rgba(236,234,228,.35)}
.map{margin:0;background:var(--bg);border-radius:var(--r-l);border:1px solid var(--line);padding:12px;position:relative}
.map svg{width:100%;height:auto;display:block}
.map figcaption{font:500 12px var(--f-mono);color:var(--muted);padding:6px 6px 2px}
.ring{fill:none;stroke:rgba(236,234,228,.25);stroke-width:1.5;transition:fill var(--t-s) var(--ease),stroke var(--t-s) var(--ease)}
.ring--0{fill:rgba(255,196,0,.32);stroke:var(--accent);stroke-width:2.5}
.ring--1{fill:rgba(255,196,0,.16);stroke:rgba(255,196,0,.6)}
.ring--2{fill:rgba(255,196,0,.07);stroke:rgba(255,196,0,.4);stroke-dasharray:6 6}
.ring--3{stroke-dasharray:2 7;stroke:rgba(236,234,228,.3)}
.ring--ttk{stroke:rgba(236,234,228,.55);stroke-width:1.5}
.ring--sad{stroke:rgba(236,234,228,.75);stroke-width:1.5}
.z.is-hl .ring{stroke:var(--text);stroke-width:3}
.z.is-hl .ring--0{fill:rgba(255,196,0,.5)}
.z.is-hl .ring--1{fill:rgba(255,196,0,.3)}
.z.is-hl .ring--2{fill:rgba(255,196,0,.18)}
.z.is-hl .ring--3{fill:rgba(236,234,228,.06)}
.roads path{stroke:rgba(236,234,228,.13);stroke-width:2;fill:none}
.river{fill:none;stroke:#3b6ea5;stroke-opacity:.55;stroke-width:3;stroke-linecap:round}
.lbl{font:600 13px var(--f-mono);fill:var(--text);text-anchor:middle}
.lbl--s{font-size:11px;fill:var(--muted)}
.lbl--z{fill:var(--accent);font-size:12px}
.lbl--base{text-anchor:start;font:700 14px var(--f-display);fill:var(--accent)}
.towns circle{fill:var(--muted)}
.towns text{font:500 12px var(--f-body);fill:#c9cbcd}
.base__dot{fill:var(--accent);stroke:#111;stroke-width:3}
.base__glow{transform-box:fill-box;transform-origin:center;animation:pulse 2.4s var(--ease) infinite}
@keyframes pulse{0%{transform:scale(.4);opacity:1}100%{transform:scale(1.6);opacity:0}}

/* ===== FAQ ===== */
.faq{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:clamp(32px,5vw,72px);align-items:start}
.faq .btn{margin-top:28px}
.acc{border-top:2px solid var(--ink)}
.acc details{border-bottom:1px solid var(--ink-line)}
.acc summary{list-style:none;cursor:pointer;padding:20px 44px 20px 0;font:700 18px/1.3 var(--f-body);position:relative}
.acc summary::-webkit-details-marker{display:none}
.acc summary::after,.acc summary::before{content:"";position:absolute;right:8px;top:50%;width:16px;height:2px;background:var(--ink);transition:transform var(--t-s) var(--ease)}
.acc summary::before{transform:rotate(90deg)}
.acc details[open] summary::before{transform:rotate(0)}
.acc summary:hover{color:var(--accent-ink)}
.acc details p{padding:0 44px 22px 0;color:var(--ink-muted);font-size:15.5px}
.acc details[open] p{animation:fadeDown var(--t-s) var(--ease-out)}
@keyframes fadeDown{from{opacity:0;transform:translateY(-6px)}}

/* ===== Contacts ===== */
.sec--contacts{background:var(--bg);position:relative}
.sec--contacts::before{content:"";position:absolute;left:0;right:0;top:0;height:10px;background:repeating-linear-gradient(-45deg,var(--accent) 0 14px,#111 14px 28px)}
.contacts{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(32px,5vw,72px);align-items:start}
.cinfo{margin:32px 0 0;display:grid}
.cinfo div{display:grid;grid-template-columns:110px minmax(0,1fr);gap:16px;padding:14px 0;border-bottom:1px solid var(--line)}
.cinfo dt{font:500 12px/1.6 var(--f-mono);text-transform:uppercase;color:var(--muted);letter-spacing:.06em}
.cinfo dd{margin:0;overflow-wrap:anywhere}
.cinfo a{text-decoration:none;font-weight:600}
.cinfo a:hover{color:var(--accent)}
.cform{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);padding:clamp(20px,3vw,32px)}

/* ===== Footer ===== */
.ftr{background:#0a0b0c;border-top:1px solid var(--line);padding:36px 0 40px}
.ftr__in{display:grid;grid-template-columns:auto 1fr;gap:10px 32px;align-items:center;color:var(--muted);font-size:14px}
.ftr__demo{grid-column:1/-1;font:500 12.5px/1.5 var(--f-mono);color:#7d8186}

/* ===== Mobile bar ===== */
.mbar{display:none}

/* ===== Modal ===== */
.modal{border:0;padding:0;background:transparent;color:var(--text);max-width:min(560px,calc(100vw - 24px));width:100%;overscroll-behavior:contain}
.modal::backdrop{background:rgba(5,6,7,.72);backdrop-filter:blur(4px)}
.modal[open]{animation:mIn var(--t-s) var(--ease-out)}
@keyframes mIn{from{opacity:0;transform:translateY(16px) scale(.98)}}
.modal__box{background:var(--bg-2);border:1px solid var(--line-strong);border-radius:var(--r-l);padding:28px;position:relative;max-height:calc(100dvh - 40px);overflow:auto}
.modal__x{position:absolute;right:12px;top:12px;width:44px;height:44px;border:0;border-radius:50%;background:var(--surface);font-size:26px;line-height:1;color:var(--text)}
.modal__x:hover{background:var(--surface-2)}
.modal__h{font-size:28px;text-transform:uppercase;margin-bottom:16px;padding-right:48px}
.modal__summary{font:500 13px/1.5 var(--f-mono);color:var(--text);background:var(--surface);border-left:3px solid var(--accent);padding:12px 14px;border-radius:var(--r-s);margin-bottom:16px;white-space:pre-line}

/* ===== Reveal / entrance (only with JS) ===== */
.js .reveal{opacity:0;transform:translateY(24px);transition:opacity var(--t-l) var(--ease-out),transform var(--t-l) var(--ease-out);transition-delay:calc(var(--i,0) * 70ms)}
.js .reveal.is-visible{opacity:1;transform:none}
.js .h-in{opacity:0;transform:translateY(105%)}
.js .is-loaded .h-in,.js.is-loaded .h-in{animation:hIn 900ms var(--ease-out) forwards;animation-delay:calc(var(--d,0) * 90ms + 100ms)}
.js .qform.h-in,.js .eyebrow.h-in,.js .hero__sub.h-in,.js .hero__btns.h-in,.js .hero__facts.h-in{transform:translateY(24px)}
@keyframes hIn{to{opacity:1;transform:none}}
.js .hero__bg img{transform:scale(1.08)}
.js.is-loaded .hero__bg img{transform:scale(1);transition:transform 2200ms var(--ease-out)}

/* ===== Responsive ===== */
@media (max-width:1180px){
  .nav{gap:16px}.nav a{font-size:13.5px}
  .hdr__phone{display:none}
}
@media (max-width:1024px){
  .nav,.hdr__cta{display:none}
  .burger{display:block}
  .hero__grid{grid-template-columns:1fr;gap:40px}
  .qform{max-width:560px}
  .stats__grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat:nth-child(3){padding-left:0;border-left:0}
  .stat:nth-child(n+3){border-top:1px solid var(--line)}
  .calc{grid-template-columns:1fr}
  .receipt{position:relative;top:0}
  .adv{grid-template-columns:repeat(2,minmax(0,1fr))}
  .adv li:not(:nth-child(3n+1)){padding-left:0;border-left:0}
  .adv li:nth-child(even){padding-left:24px;border-left:1px solid var(--ink-line)}
  .steps{grid-template-columns:1fr;gap:0}
  .steps::before,.steps::after{left:27px;right:auto;top:0;bottom:0;width:2px;height:auto}
  .steps::after{transform:scaleY(var(--prog,0));transform-origin:top}
  .step{grid-template-columns:56px 1fr;column-gap:20px;padding-bottom:28px}
  .step__n{grid-row:1/3}
  .step h3{margin-top:14px}
  .b2b,.area,.faq,.contacts{grid-template-columns:1fr}
}
@media (max-width:700px){
  :root{--hdr:60px}
  body{padding-bottom:calc(72px + env(safe-area-inset-bottom))}
  .hero{min-height:auto;padding:calc(var(--hdr) + 28px) 0 56px}
  .hero__bg::after{background:linear-gradient(180deg,rgba(11,12,13,.55) 0%,rgba(11,12,13,.85) 45%,rgba(11,12,13,.97) 100%)}
  .hero__facts{grid-template-columns:1fr;max-width:none}
  .hero__facts li{grid-template-columns:96px 1fr;align-items:baseline;padding:12px 0;border-bottom:1px solid var(--line)}
  .hero__facts li+li{padding-left:0;border-left:0}
  .hero__btns .btn{flex:1 1 100%}
  .qform{padding:20px}
  .qform::before{left:20px;right:20px}
  .row2{grid-template-columns:1fr}
  .stat{padding:24px 12px 24px 0}
  .stat+.stat{padding-left:12px}
  .stat:nth-child(3){padding-left:0}
  .sec__head{flex-direction:column;align-items:flex-start}
  .filters{flex-wrap:nowrap;overflow-x:auto;margin:0 calc(var(--gut) * -1) 24px;padding:2px var(--gut);scrollbar-width:none;scroll-snap-type:x proximity}
  .filters::-webkit-scrollbar{display:none}
  .chip{flex:none;scroll-snap-align:start}
  .adv{grid-template-columns:1fr}
  .adv li,.adv li:nth-child(even){padding:22px 0;border-left:0}
  .docs li{grid-template-columns:1fr;gap:4px}
  .cinfo div{grid-template-columns:1fr;gap:4px}
  .seg--3 span{font-size:13px}
  .ftr__in{grid-template-columns:1fr}
  .mbar{display:grid;grid-template-columns:1fr 1.4fr;gap:8px;position:fixed;left:0;right:0;bottom:0;z-index:40;padding:10px 12px calc(10px + env(safe-area-inset-bottom));background:rgba(15,17,19,.94);backdrop-filter:blur(10px);border-top:1px solid var(--line);transform:translateY(110%);transition:transform var(--t-s) var(--ease-out)}
  .mbar.is-on{transform:none}
  .mbar a,.mbar button{min-height:50px;border-radius:var(--r);display:flex;align-items:center;justify-content:center;gap:8px;font-weight:700;font-size:15px;text-decoration:none;border:0}
  .mbar__call{background:var(--surface-2);color:var(--text)}
  .mbar__call svg{width:18px;height:18px}
  .mbar__order{background:var(--accent);color:#111}
  .modal{max-width:100vw;margin:auto 0 0;}
  .modal__box{border-radius:var(--r-l) var(--r-l) 0 0;padding:22px 18px calc(22px + env(safe-area-inset-bottom))}
}
@media (pointer:fine){html{overscroll-behavior:none}}

/* ===== Reduced motion ===== */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:1ms!important;animation-iteration-count:1!important;transition-duration:1ms!important;transition-delay:0ms!important;animation-delay:0ms!important}
  .js .reveal,.js .h-in{opacity:1;transform:none}
  .js .hero__bg img{transform:none}
  .base__glow{display:none}
}
@media (max-width:700px){
  .towns text{font-size:17px}
  .lbl{font-size:17px}.lbl--s{font-size:15px}.lbl--z{font-size:16px}.lbl--base{font-size:19px}
  .towns .t-minor{display:none}
  .map{padding:6px}
}

/* =====================================================================
   LIGHT INDUSTRIAL THEME · бетон, асфальт, сигнальный жёлтый, чертёж
   ===================================================================== */
body{background:var(--paper);color:var(--ink)}
h1,h2,h3{font-weight:700;letter-spacing:0}
h2{font-size:clamp(34px,5vw,64px);line-height:1;font-weight:700}
:focus-visible{outline-color:#141414;box-shadow:0 0 0 4px var(--accent)}
.skip{background:var(--accent);color:#141414}

/* blueprint grid helper */
.bp-grid{background-image:linear-gradient(var(--bp) 1px,transparent 1px),linear-gradient(90deg,var(--bp) 1px,transparent 1px),linear-gradient(var(--bp) 1px,transparent 1px),linear-gradient(90deg,var(--bp) 1px,transparent 1px);background-size:120px 120px,120px 120px,24px 24px,24px 24px}

/* Kicker as drawing-sheet stamp */
.kicker{display:inline-flex;align-items:center;gap:10px;font:600 12px/1 var(--f-mono);color:var(--ink);letter-spacing:.1em}
.kicker::before{content:"";width:18px;height:18px;background:var(--accent);box-shadow:inset 0 0 0 2px #141414;flex:none}
.sec--dark .kicker{color:var(--text)}

/* Buttons */
.btn{border-radius:2px;font-weight:700;letter-spacing:.02em}
.btn--accent{background:var(--accent);color:#141414;box-shadow:inset 0 0 0 2px #141414}
.btn--accent::before{background:repeating-linear-gradient(-45deg,rgba(20,20,20,.16) 0 10px,transparent 10px 20px)}
.btn--accent:hover{box-shadow:inset 0 0 0 2px #141414,4px 4px 0 #141414;transform:translate(-2px,-2px)}
.btn--accent:active{transform:none;box-shadow:inset 0 0 0 2px #141414}
.btn--ghost{background:transparent;color:var(--ink);box-shadow:inset 0 0 0 2px var(--ink);backdrop-filter:none}
.btn--ghost:hover{background:var(--ink);color:var(--paper-2);box-shadow:inset 0 0 0 2px var(--ink)}
.sec--dark .btn--ghost,.cform .btn--ghost{color:var(--text);box-shadow:inset 0 0 0 2px var(--text)}
.btn--dark{border-radius:2px}

/* Header */
.hdr.is-solid{background:rgba(233,231,225,.9);box-shadow:0 1px 0 var(--ink-line)}
.logo{color:var(--ink)}
.logo__mark{width:38px;height:38px}
.logo__txt{font:700 22px/1 var(--f-display);letter-spacing:.03em}
.logo__txt i{color:var(--ink-muted);font:italic 500 14px/1 var(--f-body)}
.nav a{color:var(--ink-muted);font-weight:600}
.nav a::after{height:4px;background:var(--accent)}
.nav a:hover,.nav a.is-active{color:var(--ink)}
.hdr__phone{color:var(--ink)}
.hdr__phone:hover{color:var(--ink);background:var(--accent)}
.burger span{background:var(--ink)}
.mnav{background:var(--paper-2);border-bottom:2px solid var(--ink)}
.mnav a{border-bottom:1px solid var(--ink-line);color:var(--ink);font-weight:600}

/* Hero: светлый лист чертежа + фото в раме */
.hero{background:var(--paper);color:var(--ink);align-items:stretch;min-height:min(100svh,900px)}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--bp) 1px,transparent 1px),linear-gradient(90deg,var(--bp) 1px,transparent 1px),linear-gradient(rgba(36,82,140,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(36,82,140,.05) 1px,transparent 1px);background-size:120px 120px,120px 120px,24px 24px,24px 24px;pointer-events:none}
.hero__bg{left:auto;right:0;top:var(--hdr);bottom:10px;width:44%;clip-path:polygon(12% 0,100% 0,100% 100%,0 100%)}
.hero__bg::after{background:linear-gradient(0deg,rgba(20,20,20,.45),transparent 40%)}
.hero__bg img{object-position:40% 50%}
.hero__grid{align-items:center}
.hero__copy{position:relative;padding:24px 0}
.hero__copy::after{content:"";position:absolute;left:0;bottom:-6px;width:min(560px,100%);height:14px;background:linear-gradient(var(--ink),var(--ink)) 0 50%/100% 1px no-repeat,linear-gradient(var(--ink),var(--ink)) 0 0/1px 100% no-repeat,linear-gradient(var(--ink),var(--ink)) 100% 0/1px 100% no-repeat;opacity:.5}
.eyebrow{color:var(--ink-muted);font-weight:600}
.dot{background:var(--accent);box-shadow:0 0 0 2px #141414}
.hero__h{font-weight:700;line-height:.95;font-size:clamp(52px,8.6vw,118px);letter-spacing:-.005em}
.hero__h .accent{color:#141414;background:var(--accent);padding:0 .12em;margin-left:-.06em;box-decoration-break:clone;-webkit-box-decoration-break:clone}
.hero__sub{color:#3d3f43}
.hero__facts{border-top:2px solid var(--ink)}
.hero__facts li+li{border-left:1px solid var(--ink-line)}
.hero__facts b{font-weight:700;font-size:26px}
.hero__facts span{color:var(--ink-muted)}
.qform{background:var(--paper-2);border:2px solid var(--ink);border-radius:2px;backdrop-filter:none;box-shadow:10px 10px 0 rgba(20,20,20,.9);color:var(--ink)}
.qform::before{left:-2px;right:-2px;top:-12px;height:10px;border-radius:0;background:repeating-linear-gradient(-45deg,var(--accent) 0 12px,#141414 12px 24px)}
.qform__t{font-weight:700;font-size:26px}
.qform__s,.qform__note{color:var(--ink-muted)}
.hazard{background:repeating-linear-gradient(-45deg,var(--accent) 0 14px,#141414 14px 28px);opacity:1}

/* Светлые поля форм (в hero и модалке) */
.qform .field label,.modal .field label{color:var(--ink-muted)}
.qform .field input:not([type=range]),.qform .field select,.modal .field input:not([type=range]),.modal .field select,.modal .field textarea{background:#fff;color:var(--ink);border:1.5px solid rgba(20,20,20,.28);border-radius:2px}
.qform .field select option,.modal .field select option{background:#fff;color:#141414}
.qform .field input:hover,.qform .field select:hover,.modal .field input:hover,.modal .field select:hover,.modal .field textarea:hover{border-color:var(--ink)}
.qform .field input:focus-visible,.qform .field select:focus-visible,.modal .field input:focus-visible,.modal .field select:focus-visible,.modal .field textarea:focus-visible{border-color:#141414;box-shadow:0 0 0 3px var(--accent)}
.qform .field input[type=date]{color-scheme:light}
.qform .field select,.modal .field select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23141414' stroke-width='2'/%3E%3C/svg%3E")}
.qform .check,.modal .check{color:var(--ink-muted)}
.qform .check input,.modal .check input,.check input{accent-color:#141414}
.qform .err,.modal .err{color:var(--danger-ink)}
.qform .field.has-err input,.qform .field.has-err select,.modal .field.has-err input{border-color:var(--danger-ink)}
.field input:not([type=range]),.field select,.field textarea{border-radius:2px}
.qform .success p,.modal .success p{color:var(--ink-muted)}
.qform .success code,.modal .success code{color:var(--ink);background:var(--accent);padding:1px 6px}
.qform .success .btn--ghost,.modal .success .btn--ghost{color:var(--ink);box-shadow:inset 0 0 0 2px var(--ink)}
.success__ic{border-radius:2px;box-shadow:inset 0 0 0 2px #141414}

/* Stats на жёлтом */
.stats--y{background:var(--accent);color:#141414;border-bottom:2px solid #141414}
.stats--y .stat+.stat{border-left:2px solid #141414}
.stats--y .stat b{font-weight:700;font-size:clamp(44px,5vw,68px)}
.stats--y .stat span{color:#2a2a2a;font-weight:500}
@media (max-width:1024px){.stats--y .stat:nth-child(n+3){border-top:2px solid #141414}.stats--y .stat:nth-child(3){border-left:0}}

/* Sections */
.sec--paper{background:var(--paper)}
.sec--paper + .sec--paper{border-top:2px solid var(--ink)}
.sec--dark{background:var(--bg)}
.sec--paper .lead-p{color:var(--ink-muted)}

/* Catalog */
.vat{border-radius:2px;background:#fff;box-shadow:inset 0 0 0 2px var(--ink)}
.vat__b{border-radius:0}
.vat__b[aria-pressed="true"]{background:var(--ink);color:var(--accent)}
.chip{border-radius:2px;background:#fff;box-shadow:inset 0 0 0 1.5px rgba(20,20,20,.3)}
.chip[aria-pressed="true"]{background:var(--accent);color:#141414;box-shadow:inset 0 0 0 2px #141414}
.chip[aria-pressed="true"] small{color:#141414}
.card{border-radius:2px;background:#fff;box-shadow:0 0 0 1.5px rgba(20,20,20,.18)}
.card:hover{box-shadow:0 0 0 2px #141414,8px 8px 0 var(--accent);transform:translate(-3px,-3px)}
.card__media{position:relative}
.card__media::after{content:"";position:absolute;inset:10px;pointer-events:none;background:
  linear-gradient(#fff,#fff) 0 0/14px 2px no-repeat,linear-gradient(#fff,#fff) 0 0/2px 14px no-repeat,
  linear-gradient(#fff,#fff) 100% 100%/14px 2px no-repeat,linear-gradient(#fff,#fff) 100% 100%/2px 14px no-repeat;opacity:.9}
.tag{border-radius:0;background:#141414;color:var(--accent);left:18px;top:18px}
.units{border-radius:0;background:var(--accent);color:#141414;right:18px;top:18px}
.card__body h3{font-size:24px;font-weight:700}
.specs{border-top:2px solid var(--ink)}
.specs dd{font-family:var(--f-mono)}
.price__h{font-weight:700;font-size:34px}
.btn--line{box-shadow:inset 0 0 0 1.5px rgba(20,20,20,.4)}

/* Calculator (асфальт) */
.sec--dark h2{color:var(--text)}
.field input:not([type=range]),.field select,.field textarea{background:var(--bg-2)}
.seg span{border-radius:2px;background:var(--bg-2)}
.seg input:checked+span{background:var(--accent);color:#141414;box-shadow:none}
input[type=range]::-webkit-slider-thumb{border-radius:2px;background:#141414;border:3px solid var(--accent);width:22px;height:26px;margin-top:-10px}
input[type=range]::-moz-range-thumb{border-radius:2px;background:#141414;border:3px solid var(--accent)}
.receipt{border-radius:2px;background:#fff;box-shadow:12px 12px 0 var(--accent)}
.receipt::after{background:radial-gradient(circle at 8px 0,#fff 7px,transparent 7.5px) 0 0/16px 8px repeat-x}
.receipt__top img{border-radius:0}
.receipt__eq{font-weight:700;font-size:21px}
.receipt__total{border-top:3px solid #141414}
.receipt__total b{font-weight:700;font-size:clamp(38px,4.4vw,52px)}
.receipt__lines li.disc b{color:#0f7a3e}

/* Advantages */
.adv{border-top:3px solid var(--ink)}
.adv__n{display:inline-block;width:max-content;background:var(--accent);color:#141414;padding:3px 7px;font-weight:600}
.adv h3{font-size:24px}

/* Process (светлый) */
.sec--process{background:var(--paper-2)}
.sec--process h2{color:var(--ink)}
.steps::before{background:repeating-linear-gradient(90deg,rgba(20,20,20,.35) 0 8px,transparent 8px 14px)}
.steps::after{background:#141414;height:3px}
.step__n{border-radius:2px;background:#fff;color:var(--ink);box-shadow:inset 0 0 0 2px #141414;font-family:var(--f-display);font-weight:700}
.step.is-visible .step__n{background:var(--accent);color:#141414;box-shadow:inset 0 0 0 2px #141414}
.step p{color:var(--ink-muted)}
@media (max-width:1024px){.steps::before{background:repeating-linear-gradient(180deg,rgba(20,20,20,.35) 0 8px,transparent 8px 14px)}.steps::after{width:3px}}

/* B2B */
.b2b__media{border-radius:0;outline:2px solid #141414;outline-offset:8px}
.b2b__stamp{border-radius:2px;color:#141414;background:var(--accent);border:3px solid #141414;transform:rotate(-6deg)}
.docs li:first-child{border-top:2px solid var(--ink)}

/* Area: чертёж */
.sec--bp{background-color:var(--paper);background-image:linear-gradient(var(--bp) 1px,transparent 1px),linear-gradient(90deg,var(--bp) 1px,transparent 1px);background-size:24px 24px}
.sec--bp h2{color:var(--ink)}
.zones button{border-radius:2px;background:#fff;color:var(--ink);box-shadow:inset 0 0 0 1.5px rgba(20,20,20,.22)}
.zones button:hover,.zones button[aria-pressed="true"]{background:#fff;box-shadow:inset 0 0 0 2px #141414,5px 5px 0 var(--accent)}
.zones span:not(.sw){color:var(--ink-muted)}
.sw--0{background:rgba(255,196,0,1);box-shadow:inset 0 0 0 1.5px #141414}.sw--1{background:rgba(255,196,0,.55);box-shadow:inset 0 0 0 1.5px #141414}.sw--2{background:repeating-linear-gradient(-45deg,rgba(255,196,0,.7) 0 3px,transparent 3px 6px);box-shadow:inset 0 0 0 1.5px #141414}.sw--3{background:#fff;box-shadow:inset 0 0 0 1.5px #141414}
.map{background:#fff;border:2px solid #141414;border-radius:0;box-shadow:12px 12px 0 rgba(20,20,20,.12)}
.map pattern path{stroke:rgba(36,82,140,.12)}
.map figcaption{color:var(--ink-muted);border-top:1px solid var(--ink-line);margin-top:6px;padding-top:8px}
.ring{stroke:rgba(20,20,20,.35)}
.ring--0{fill:rgba(255,196,0,.95);stroke:#141414;stroke-width:2.5}
.ring--1{fill:rgba(255,196,0,.42);stroke:#141414;stroke-width:1.5}
.ring--2{fill:rgba(255,196,0,.14);stroke:#141414;stroke-dasharray:8 5}
.ring--3{stroke:#141414;stroke-dasharray:2 6}
.ring--ttk{stroke:#141414;stroke-width:1.5}
.ring--sad{stroke:#141414;stroke-width:2}
.z.is-hl .ring{stroke:#141414;stroke-width:3.5}
.z.is-hl .ring--1{fill:rgba(255,196,0,.7)}
.z.is-hl .ring--2{fill:rgba(255,196,0,.4)}
.z.is-hl .ring--3{fill:rgba(255,196,0,.12)}
.roads path{stroke:rgba(20,20,20,.16);stroke-width:2.5}
.river{stroke:#24528c;stroke-opacity:.6}
.lbl{fill:#141414}
.lbl--s{fill:#141414}
.lbl--z{fill:#141414;font-weight:600}
.lbl--base{fill:#141414;font-family:var(--f-display)}
.towns circle{fill:#141414}
.towns text{fill:#2c2d30}
.base__dot{fill:#141414;stroke:var(--accent);stroke-width:4}

/* FAQ */
.acc{border-top:3px solid var(--ink)}
.acc summary{font-family:var(--f-body)}
.acc summary:hover{color:var(--ink);background:linear-gradient(var(--accent),var(--accent)) 0 100%/100% 3px no-repeat}
.acc details[open] summary::after{background:#141414}

/* Contacts (асфальт) */
.sec--contacts{background:var(--bg)}
.sec--contacts::before{background:repeating-linear-gradient(-45deg,var(--accent) 0 14px,#141414 14px 28px)}
.cform{border-radius:2px;background:var(--surface);border:1px solid var(--line-strong)}
.cinfo a:hover{color:var(--accent)}

/* Footer, mobile bar, modal */
.ftr{background:#0d0d0e;color:var(--muted)}
.ftr .logo{color:var(--text)}
.ftr .logo__txt i{color:var(--accent)}
.mbar{background:rgba(22,23,25,.96)}
.mbar a,.mbar button{border-radius:2px}
.mbar__order{background:var(--accent);color:#141414}
.modal{color:var(--ink)}
.modal__box{background:var(--paper-2);border:2px solid #141414;border-radius:2px}
.modal__x{background:#fff;color:#141414;border-radius:2px;box-shadow:inset 0 0 0 1.5px rgba(20,20,20,.3)}
.modal__x:hover{background:var(--accent)}
.modal__summary{background:#fff;color:var(--ink);border-left:4px solid var(--accent);box-shadow:inset 0 0 0 1px var(--ink-line)}

/* Responsive hero */
@media (max-width:1024px){
  .hero{padding-top:calc(var(--hdr) + 320px)}
  .hero__bg{top:var(--hdr);bottom:auto;height:300px;width:100%;clip-path:polygon(0 0,100% 0,100% 88%,0 100%)}
}
@media (max-width:700px){
  .hero{padding-top:calc(var(--hdr) + 232px)}
  .hero__bg{height:220px}
  .hero__bg::after{background:linear-gradient(0deg,rgba(20,20,20,.35),transparent 50%)}
  .qform{box-shadow:6px 6px 0 rgba(20,20,20,.9)}
  .modal__box{border-radius:0;border-width:2px 0 0}
}
@media (prefers-reduced-motion:reduce){.btn--accent:hover,.card:hover{transform:none}}
.sec--dark,.sec--contacts,.ftr,.mbar{color:var(--text)}
.qform .field select,.modal .field select{background-repeat:no-repeat;background-position:right 14px center}
.hero__h{font-size:clamp(48px,7.4vw,100px)}