:root{
  --ink:#1a1a1a;
  --ink-soft:#4a4a48;
  --paper:#ecebe7;
  --line:rgba(26,26,26,.28);
  --line-strong:rgba(26,26,26,.55);
  --chip:rgba(255,255,255,.34);
  --chip-hover:rgba(255,255,255,.72);
  --accent:#1f5d52;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Golos Text',Helvetica,Arial,sans-serif;
  font-size:17px;
  line-height:1.6;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit}

/* ---------- фон ---------- */
.bg{position:fixed;inset:0;z-index:-2;background-size:cover;background-position:center right}
.bg::after{content:'';position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(236,235,231,.86) 0%,rgba(236,235,231,.58) 38%,rgba(236,235,231,.06) 72%,rgba(0,0,0,.06) 100%)}
.bg-main{background-image:image-set(url('bg-main.webp?v=b42ac906') type('image/webp'),url('bg-main.jpg?v=508fcc26') type('image/jpeg'))}
.bg-main::after{background:linear-gradient(90deg,rgba(236,235,231,.66) 0%,rgba(236,235,231,.3) 34%,rgba(236,235,231,0) 62%,rgba(0,0,0,.04) 100%)}
.hero-bg{position:absolute;inset:0;z-index:-1;background-size:cover;background-position:center}
.hero-bg::after{content:'';position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(236,235,231,.9) 0%,rgba(236,235,231,.66) 42%,rgba(236,235,231,.12) 78%,rgba(0,0,0,.05) 100%)}

/* фоны страниц по реальным фото */
.bg-photo-svarka{background-image:image-set(url('bg-svarka.webp?v=77917790') type('image/webp'),url('bg-svarka.jpg?v=79aef64c') type('image/jpeg'));background-position:center right}
.bg-photo-kessony{background-image:image-set(url('bg-kessony-custom.webp?v=34cce508') type('image/webp'),url('bg-kessony-custom.jpg?v=e18d252c') type('image/jpeg'));background-position:center}
.bg-photo-rezervuar{background-image:image-set(url('bg-rezervuar.webp?v=8e751b3f') type('image/webp'),url('bg-rezervuar.jpg?v=eb4fde17') type('image/jpeg'));background-position:center right}
.bg-photo-kolodets{background-image:image-set(url('bg-kolodets.webp?v=82cdf7a4') type('image/webp'),url('bg-kolodets.jpg?v=1fa7ed92') type('image/jpeg'));background-position:center right}
.bg-photo-remont{background-image:image-set(url('bg-remont.webp?v=23cfa968') type('image/webp'),url('bg-remont.jpg?v=f10ae6b3') type('image/jpeg'));background-position:center right}
.bg-photo-404{background-image:image-set(url('bg-404.webp?v=f58a745f') type('image/webp'),url('bg-404.jpg?v=41179667') type('image/jpeg'));background-position:center}
.bg-photo-septik{background-image:image-set(url('bg-septik.webp?v=822864b1') type('image/webp'),url('bg-septik.jpg?v=081ee236') type('image/jpeg'));background-position:center right}
.bg-photo-objects{background-image:image-set(url('bg-objects.webp?v=85f31b22') type('image/webp'),url('bg-objects.jpg?v=4e881af2') type('image/jpeg'));background-position:center right}
.bg-photo-smenno{background-image:image-set(url('bg-smenno.webp?v=2923fa6d') type('image/webp'),url('bg-smenno.jpg?v=27138f5c') type('image/jpeg'));background-position:center right}
/* раздел статей: светлый кадр с блокнотом, текст слева кроем плотнее */
.bg-photo-article{background-image:image-set(url('bg-article.webp?v=12548437') type('image/webp'),url('bg-article.jpg?v=340d84ef') type('image/jpeg'));background-position:center right}
.bg-photo-article::after{background:linear-gradient(90deg,rgba(236,235,231,.92) 0%,rgba(236,235,231,.84) 44%,rgba(236,235,231,.5) 72%,rgba(236,235,231,.28) 100%)}
/* страница «О нас»: светлый кадр с анкерным листом, текст слева кроем плотнее */
.bg-photo-about{background-image:image-set(url('bg-about.webp?v=c7275deb') type('image/webp'),url('bg-about.jpg?v=07e24494') type('image/jpeg'));background-position:center right}
.bg-photo-about::after{background:linear-gradient(90deg,rgba(236,235,231,.9) 0%,rgba(236,235,231,.78) 44%,rgba(236,235,231,.4) 72%,rgba(236,235,231,.18) 100%)}
/* новые разделы: цены, калькуляторы, библиотека, вопросы, кейсы — светлые кадры, текст слева кроем плотнее */
.bg-photo-ploshadka{background-image:image-set(url('bg-ploshadka.webp?v=7897ee28') type('image/webp'),url('bg-ploshadka.jpg?v=1102b770') type('image/jpeg'));background-position:center right}
.bg-photo-beton{background-image:image-set(url('bg-beton.webp?v=36b0e843') type('image/webp'),url('bg-beton.jpg?v=9db1880a') type('image/jpeg'));background-position:center}
.bg-photo-provod{background-image:image-set(url('bg-provod.webp?v=31c720b2') type('image/webp'),url('bg-provod.jpg?v=4f9fff97') type('image/jpeg'));background-position:center right}
/* вопросы и ответы: гвоздодёр на бетоне, текст слева кроем плотнее */
.bg-photo-voprosy{background-image:image-set(url('bg-voprosy.webp?v=4d5511a8') type('image/webp'),url('bg-voprosy.jpg?v=13ad8c7e') type('image/jpeg'));background-position:center right}
.bg-photo-voprosy::after{background:linear-gradient(90deg,rgba(236,235,231,.95) 0%,rgba(236,235,231,.86) 38%,rgba(236,235,231,.42) 64%,rgba(236,235,231,.06) 100%)}
/* техническая библиотека: каска на бетоне, текст слева кроем плотнее */
.bg-photo-biblioteka{background-image:image-set(url('bg-biblioteka.webp?v=ab3394da') type('image/webp'),url('bg-biblioteka.jpg?v=b9a2668d') type('image/jpeg'));background-position:center right}
.bg-photo-biblioteka::after{background:linear-gradient(90deg,rgba(236,235,231,.95) 0%,rgba(236,235,231,.86) 38%,rgba(236,235,231,.5) 64%,rgba(236,235,231,.14) 100%)}
/* калькуляторы: калькулятор на столе, кадр осветлён под палитру сайта */
.bg-photo-calculators{background-image:image-set(url('bg-calculators.webp?v=c9d28625') type('image/webp'),url('bg-calculators.jpg?v=763c2451') type('image/jpeg'));background-position:right 64%}
.bg-photo-calculators::after{background:linear-gradient(90deg,rgba(236,235,231,.95) 0%,rgba(236,235,231,.86) 38%,rgba(236,235,231,.5) 64%,rgba(236,235,231,.16) 100%)}
/* цены: газета WELDPE.RU с экструдером, кадр приглушён под палитру сайта */
.bg-photo-ceny{background-image:image-set(url('bg-ceny.webp?v=644c6fb1') type('image/webp'),url('bg-ceny.jpg?v=7f2a35db') type('image/jpeg'));background-position:right 55%}
.bg-photo-ceny::after{background:linear-gradient(90deg,rgba(236,235,231,.95) 0%,rgba(236,235,231,.85) 36%,rgba(236,235,231,.46) 62%,rgba(236,235,231,.1) 100%)}
.bg-photo-ploshadka::after,.bg-photo-beton::after,.bg-photo-provod::after{background:linear-gradient(90deg,rgba(236,235,231,.93) 0%,rgba(236,235,231,.85) 44%,rgba(236,235,231,.52) 72%,rgba(236,235,231,.3) 100%)}
/* сменный сварщик: светлый кадр с феном, текст слева кроем плотнее */
.bg-photo-smenno::after{
  background:linear-gradient(90deg,rgba(236,235,231,.9) 0%,rgba(236,235,231,.78) 44%,rgba(236,235,231,.4) 72%,rgba(236,235,231,.18) 100%)}
/* тёмные кадры: слева осветляем сильнее, чтобы текст оставался читаемым */
.bg-photo-kolodets::after,.bg-photo-septik::after,.bg-photo-remont::after{
  background:linear-gradient(90deg,rgba(236,235,231,.95) 0%,rgba(236,235,231,.88) 40%,rgba(236,235,231,.5) 72%,rgba(236,235,231,.28) 100%)}

/* ---------- каркас ---------- */
.shell{max-width:1440px;margin:0 auto;padding:0 60px;width:100%}
section{padding:78px 0}
.narrow{max-width:760px}

/* ---------- типографика ---------- */
.label{display:flex;align-items:center;gap:18px;font-size:11px;font-weight:500;
  letter-spacing:.12em;text-transform:uppercase;margin:0 0 26px;max-width:none;white-space:nowrap}
.label::after{content:'';flex:1 1 auto;height:1px;background:var(--line-strong)}
h1{font-size:clamp(30px,4vw,52px);line-height:1.06;letter-spacing:-.02em;font-weight:600;margin:0 0 22px;max-width:19ch}
h2{font-size:clamp(23px,2.4vw,32px);line-height:1.15;letter-spacing:-.015em;font-weight:600;margin:0 0 18px;max-width:26ch}
h3{font-size:17px;font-weight:600;letter-spacing:-.005em;margin:0 0 8px}
p{margin:0 0 16px;max-width:68ch;color:var(--ink-soft)}
.lead{font-size:19px;color:var(--ink);max-width:56ch}
.mono{font-variant-numeric:tabular-nums}

/* ---------- шапка ---------- */
.top{position:sticky;top:0;z-index:20;backdrop-filter:blur(10px);
  background:rgba(236,235,231,.72);border-bottom:1px solid var(--line)}
.top-in{max-width:1440px;margin:0 auto;padding:14px 60px;display:flex;align-items:center;gap:28px}
.brand{font-size:13px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;text-decoration:none}
.top nav{display:flex;gap:22px;margin-left:auto;flex-wrap:wrap}
.top nav a{font-size:11px;letter-spacing:.1em;text-transform:uppercase;text-decoration:none;
  padding-bottom:2px;border-bottom:1px solid transparent}
.top nav a:hover,.top nav a[aria-current="page"]{border-bottom-color:var(--ink)}
.top .tel{font-size:13px;font-weight:600;letter-spacing:.03em;text-decoration:none;white-space:nowrap}

/* ---------- кнопки ---------- */
.chips{display:flex;flex-direction:column;align-items:flex-start;gap:14px}
.chip{display:inline-block;padding:13px 20px;border:1px solid var(--ink);background:var(--chip);
  text-decoration:none;font-size:11.5px;font-weight:500;letter-spacing:.1em;text-transform:uppercase;
  transition:background .28s cubic-bezier(.16,1,.3,1),transform .28s cubic-bezier(.16,1,.3,1)}
.chip:hover{background:var(--chip-hover)}
.chip:active{transform:translateY(-1px)}
.chip-solid{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.chip-solid:hover{background:#000}
.row{display:flex;flex-wrap:wrap;gap:14px;align-items:center}

/* ---------- первый экран услуги ---------- */
.hero{position:relative;min-height:76dvh;display:flex;align-items:center;padding:110px 0 90px}
.crumb{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft);margin:0 0 20px}
.crumb a{text-decoration:none;border-bottom:1px solid var(--line)}

/* ---------- списки и сетки ---------- */
.grid{display:grid;gap:34px 48px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.split{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:56px;align-items:start}
.divided > *{border-top:1px solid var(--line);padding-top:18px}
.ticks{list-style:none;padding:0;margin:0}
.ticks li{position:relative;padding:12px 0 12px 26px;border-bottom:1px solid var(--line);
  color:var(--ink-soft);max-width:70ch}
.ticks li::before{content:'';position:absolute;left:0;top:21px;width:11px;height:1px;background:var(--ink)}

/* ---------- цифры ---------- */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0}
.stats div{border-top:1px solid var(--line-strong);padding:20px 24px 0 0}
.stats b{display:block;font-size:clamp(28px,3.1vw,42px);font-weight:600;letter-spacing:-.02em;line-height:1;
  font-variant-numeric:tabular-nums}
.stats span{display:block;margin-top:10px;font-size:13px;color:var(--ink-soft);max-width:22ch}

/* ---------- этапы ---------- */
.steps{counter-reset:s;list-style:none;padding:0;margin:0;display:grid;gap:0}
.steps li{counter-increment:s;display:grid;grid-template-columns:56px minmax(0,1fr);gap:20px;
  border-top:1px solid var(--line);padding:22px 0}
.steps li::before{content:counter(s,decimal-leading-zero);font-size:12px;letter-spacing:.08em;
  color:var(--ink-soft);padding-top:4px}

/* ---------- таблица ---------- */
table{width:100%;border-collapse:collapse;font-size:15px}
th,td{text-align:left;padding:13px 14px 13px 0;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:11px;letter-spacing:.1em;text-transform:uppercase;font-weight:500;
  border-bottom:1.5px solid var(--ink)}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums;padding-right:0}
td.num:not(:last-child),th.num:not(:last-child){padding-right:28px}
tbody tr:nth-child(odd){background:rgba(255,255,255,.28)}

/* ---------- FAQ ---------- */
details{border-top:1px solid var(--line);padding:16px 0}
details summary{cursor:pointer;font-weight:500;list-style:none;display:flex;gap:16px;align-items:flex-start}
details summary::-webkit-details-marker{display:none}
details summary::after{content:'+';margin-left:auto;font-size:18px;line-height:1;opacity:.6}
details[open] summary::after{content:'–'}
details p{margin:14px 0 4px}

/* ---------- форма ---------- */
form{display:grid;gap:18px;max-width:560px}
.field{display:grid;gap:6px}
label{font-size:11px;letter-spacing:.1em;text-transform:uppercase}
input,textarea,select{font:inherit;font-size:16px;padding:12px 14px;border:1px solid var(--line-strong);
  background:rgba(255,255,255,.55);color:var(--ink);border-radius:0}
select{width:100%;max-width:100%;text-overflow:ellipsis}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--ink);background:rgba(255,255,255,.85)}
.hint{font-size:13px;color:var(--ink-soft);margin:0}
button{font:inherit;cursor:pointer}

/* ---------- подвал ---------- */
footer{border-top:1px solid var(--line-strong);background:rgba(236,235,231,.82)}
.foot-in{max-width:1440px;margin:0 auto;padding:44px 60px 56px;display:grid;
  grid-template-columns:minmax(0,1.2fr) minmax(0,1fr) minmax(0,1fr);gap:36px}
footer a{text-decoration:none}
footer .muted{color:var(--ink-soft);font-size:13px}
.flist{list-style:none;margin:0;padding:0;display:grid;gap:9px;font-size:14px}
.flist a:hover{border-bottom:1px solid var(--ink)}

@media (max-width:980px){
  .g3,.g2,.split{grid-template-columns:minmax(0,1fr)}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot-in{grid-template-columns:minmax(0,1fr)}
}
.call-fab{display:none}
@media (max-width:768px){
  body{font-size:17px;padding-bottom:72px}
  .shell{padding:0 20px}
  .top-in{padding:12px 20px;gap:14px}
  .top nav{display:none}
  .top .tel{margin-left:auto;font-size:16px;padding:8px 12px;border:1px solid var(--ink)}
  .call-fab{display:flex;position:fixed;left:16px;right:16px;bottom:16px;z-index:40;
    align-items:center;justify-content:center;padding:16px 18px;background:var(--ink);color:var(--paper);
    text-decoration:none;font-size:15px;font-weight:600;letter-spacing:.04em;text-transform:uppercase}
  section{padding:52px 0}
  .hero{min-height:auto;padding:64px 0 52px}
  .bg{background-position:center}
  .bg-main{background-image:image-set(url('bg-main-mobile.webp?v=3651cad5') type('image/webp'),url('bg-main.jpg?v=508fcc26') type('image/jpeg'))}
  .bg-photo-smenno{background-image:image-set(url('bg-smenno-mobile.webp?v=ec79df7d') type('image/webp'),url('bg-smenno.jpg?v=27138f5c') type('image/jpeg'))}
  .bg-photo-objects{background-image:image-set(url('bg-objects-mobile.webp?v=9c0ab529') type('image/webp'),url('bg-objects.jpg?v=4e881af2') type('image/jpeg'))}
  .bg-photo-article{background-image:image-set(url('bg-article-mobile.webp?v=d2cbac62') type('image/webp'),url('bg-article.jpg?v=340d84ef') type('image/jpeg'))}
  .bg-photo-about{background-image:image-set(url('bg-about-mobile.webp?v=435f35ad') type('image/webp'),url('bg-about.jpg?v=07e24494') type('image/jpeg'))}
  .bg-photo-ploshadka{background-image:image-set(url('bg-ploshadka-mobile.webp?v=cbb3e9ca') type('image/webp'),url('bg-ploshadka.jpg?v=1102b770') type('image/jpeg'))}
  .bg-photo-beton{background-image:image-set(url('bg-beton-mobile.webp?v=0a1251e9') type('image/webp'),url('bg-beton.jpg?v=9db1880a') type('image/jpeg'))}
  .bg-photo-provod{background-image:image-set(url('bg-provod-mobile.webp?v=0db26ea8') type('image/webp'),url('bg-provod.jpg?v=4f9fff97') type('image/jpeg'))}
  .bg-photo-voprosy{background-image:image-set(url('bg-voprosy-mobile.webp?v=11969813') type('image/webp'),url('bg-voprosy.jpg?v=13ad8c7e') type('image/jpeg'))}
  .bg-photo-biblioteka{background-image:image-set(url('bg-biblioteka-mobile.webp?v=9ff5b628') type('image/webp'),url('bg-biblioteka.jpg?v=b9a2668d') type('image/jpeg'))}
  .bg-photo-calculators{background-image:image-set(url('bg-calculators-mobile.webp?v=1a4646d2') type('image/webp'),url('bg-calculators.jpg?v=763c2451') type('image/jpeg'))}
  .bg-photo-ceny{background-image:image-set(url('bg-ceny-mobile.webp?v=2c8512f1') type('image/webp'),url('bg-ceny.jpg?v=7f2a35db') type('image/jpeg'))}
  .bg::after,.hero-bg::after{background:linear-gradient(180deg,rgba(236,235,231,.92) 0%,rgba(236,235,231,.74) 55%,rgba(236,235,231,.88) 100%)}
  .bg-main::after{background:linear-gradient(180deg,rgba(236,235,231,.88) 0%,rgba(236,235,231,.72) 55%,rgba(236,235,231,.9) 100%)}
  .bg-photo-article::after{background:linear-gradient(180deg,rgba(236,235,231,.95) 0%,rgba(236,235,231,.93) 55%,rgba(236,235,231,.96) 100%)}
  .chip{width:100%;font-size:12px;padding:15px 16px}
  .label{white-space:normal;align-items:flex-start}
  .label::after{margin-top:8px}
  .row .chip{width:100%}
  .foot-in{padding:36px 20px 44px}
  .steps li{grid-template-columns:34px minmax(0,1fr);gap:12px}
}

/* ---------- страница с фиксированным фото на весь экран ---------- */
.bg-fixed{background-attachment:scroll}
.hero-clear{min-height:100dvh;padding:120px 0 96px}
.overlay{position:relative;background:rgba(236,235,231,.86);backdrop-filter:blur(7px);
  border-top:1px solid var(--line-strong)}
.overlay section{position:relative}

/* ---------- калькулятор ---------- */
.calc{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.85fr);gap:48px;align-items:start}
.calc-head{display:flex;flex-wrap:wrap;gap:16px 26px;align-items:center;justify-content:space-between;
  margin-bottom:26px;padding-bottom:18px;border-bottom:1px solid var(--line-strong)}
.seg{display:inline-flex;border:1px solid var(--ink);background:rgba(255,255,255,.4)}
.seg-btn{appearance:none;border:0;background:transparent;padding:11px 18px;font:inherit;font-size:11.5px;
  font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:var(--ink);
  transition:background .28s cubic-bezier(.16,1,.3,1),color .28s cubic-bezier(.16,1,.3,1)}
.seg-btn+.seg-btn{border-left:1px solid var(--ink)}
.seg-btn.is-on{background:var(--ink);color:var(--paper)}
.calc-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 26px}
.calc-form .field input{max-width:100%}
.err{font-size:12.5px;color:#8c2a20;min-height:17px}
.checks{display:grid;gap:12px;margin-top:26px;padding-top:20px;border-top:1px solid var(--line)}
.check{display:flex;gap:12px;align-items:flex-start;font-size:15px;letter-spacing:0;
  text-transform:none;color:var(--ink-soft);cursor:pointer}
.check input{width:18px;height:18px;margin:2px 0 0;accent-color:var(--ink);padding:0;flex:0 0 auto}
.calc-out{border:1px solid var(--line-strong);background:rgba(255,255,255,.52);padding:28px 26px 24px}
.out-main{display:flex;align-items:baseline;gap:10px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.out-main b{font-size:clamp(32px,3.4vw,46px);font-weight:600;line-height:1;letter-spacing:-.02em;
  font-variant-numeric:tabular-nums}
.out-main span{font-size:13px;color:var(--ink-soft)}
.out-list{margin:0;padding:0}
.out-list > div{padding:14px 0;border-bottom:1px solid var(--line)}
.out-list dt{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft)}
.out-list dd{margin:6px 0 0;font-size:15px}
.calc-out .hint{margin:16px 0 0}
.calc-out .chip{margin-top:18px}

/* ---------- раскрывающиеся блоки ---------- */
.fold-sec{padding:0}
.fold{border-top:1px solid var(--line-strong);border-bottom:0;padding:26px 0}
.fold > summary{align-items:center}
.fold > summary .label{margin:0}
.fold > summary::after{font-size:22px;opacity:.75}
.fold-body{padding-top:28px}
.fold-body .steps li:first-child{border-top:0;padding-top:0}
.fold-body .ticks li:first-child{padding-top:0}
.fold-body .ticks li:first-child::before{top:9px}

@media (max-width:980px){
  .calc{grid-template-columns:minmax(0,1fr);gap:34px}
}
@media (max-width:768px){
  .hero-clear{min-height:86dvh;padding:72px 0 60px}
  .calc-grid{grid-template-columns:minmax(0,1fr)}
  .calc-head{flex-direction:column;align-items:flex-start}
  .seg{width:100%}
  .seg-btn{flex:1 1 0;padding:13px 10px;font-size:11px}
  .calc-out{padding:22px 18px}
}

/* ---------- калькулятор в первом экране ---------- */
.hero-split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,540px);gap:56px;align-items:center}
.hero-copy h1{max-width:16ch}
.hero-copy .lead{max-width:44ch}
.calc-card{border:1px solid var(--line-strong);background:rgba(255,255,255,.66);
  backdrop-filter:blur(14px);padding:32px 30px 28px;
  box-shadow:0 24px 48px -24px rgba(26,26,26,.28)}
.calc.calc-in-card{grid-template-columns:minmax(0,1fr);gap:26px}
.calc-in-card .calc-head{margin-bottom:22px}
.calc-in-card .calc-out{background:rgba(255,255,255,.62)}
.calc-in-card .out-main b{font-size:clamp(28px,2.6vw,38px)}
@media (max-width:1180px){
  .hero-split{grid-template-columns:minmax(0,1fr);gap:40px;align-items:start}
  .hero-copy h1,.hero-copy .lead{max-width:26ch}
  .hero-copy .lead{max-width:60ch}
  .calc-card{max-width:640px}
}
@media (max-width:768px){
  .calc-card{padding:24px 18px 22px}
  .hero-clear{min-height:auto;padding:60px 0 48px}
}

/* компактная посадка калькулятора в первый экран */
.hero-split{align-items:start}
.hero-clear{padding:104px 0 84px}
.calc-in-card .calc-head{margin-bottom:20px;padding-bottom:0;border-bottom:0}
.calc-in-card .calc-grid{gap:14px 22px}
.calc-in-card .err{min-height:0}
.calc-in-card .err:empty{display:none}
.calc-in-card .checks{margin-top:20px;padding-top:18px;gap:10px}
.calc-in-card .row{margin-top:18px !important}
.calc-in-card .calc-out{padding:20px 20px 18px}
.calc-in-card .out-main{padding-bottom:14px}
.calc-in-card .out-list > div{padding:11px 0}
.calc-in-card .out-list dd{font-size:14px}
.calc-in-card .calc-out .hint{margin-top:12px;font-size:12.5px}
@media (min-width:1181px){
  .hero-copy{padding-top:8px}
  .hero-copy h1{font-size:clamp(30px,3.4vw,44px)}
}

/* панель результата: компактное состояние до расчёта */
.calc-out[data-state="empty"] .out-main,
.calc-out[data-state="empty"] .out-list,
.calc-out[data-state="empty"] > .hint:not(.out-empty){display:none}
.calc-out[data-state="done"] .out-empty{display:none}
.out-empty{margin:0}

[hidden]{display:none !important}

/* ---------- частые вопросы в две колонки ---------- */
.faq-cols{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 56px;align-items:start}
.faq-cols details{padding:15px 0}
.faq-cols summary{font-weight:400}
.faq-cols details p{max-width:52ch}
@media (max-width:900px){.faq-cols{grid-template-columns:minmax(0,1fr);gap:0}}

/* ---------- калькулятор колодцев: три типоразмера ---------- */
.calc-row{padding:0 0 16px;margin-bottom:16px;border-bottom:1px solid var(--line)}
.calc-row:last-of-type{border-bottom:0;margin-bottom:0;padding-bottom:4px}
.calc-row-title{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink);
  font-weight:500;margin:0 0 12px}
.calc-grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.calc-row .check{margin-top:10px;font-size:14px}
.checks-cond{margin-top:22px}
@media (max-width:980px){.calc-grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.calc-grid-3{grid-template-columns:minmax(0,1fr)}}
.calc-grid .field{min-width:0}
.calc-grid .field input{width:100%;min-width:0;box-sizing:border-box}
.calc-in-card .calc-row .check{font-size:13.5px}
.calc-in-card input{padding:10px 12px;font-size:15px}

/* ---- переключатель способов расчёта ---- */
.mode-seg{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  border:1px solid rgba(26,26,26,.22);border-radius:0;padding:4px;margin:0 0 26px;
  background:rgba(255,255,255,.45)}
.mode-ind{position:absolute;top:4px;left:4px;width:calc((100% - 8px)/3);height:calc(100% - 8px);
  background:var(--ink);border-radius:0;transition:transform .34s cubic-bezier(.16,1,.3,1);
  pointer-events:none}
.mode-btn{position:relative;z-index:1;appearance:none;background:none;border:0;cursor:pointer;
  padding:9px 6px;font:inherit;font-size:12px;letter-spacing:.06em;text-transform:uppercase;
  color:var(--ink-soft);border-radius:0;transition:color .2s ease}
.mode-btn:hover{color:var(--ink)}
.mode-btn.is-on{color:var(--paper)}
.mode-btn.is-on:hover{color:var(--paper)}
.calc-grid-4{grid-template-columns:repeat(4,1fr)}
.calc-row-title .d-wrap{float:right;text-transform:none;letter-spacing:0;font-weight:400;
  color:var(--ink-soft);font-size:13px}
.d-inline{width:64px;display:inline-block;padding:5px 8px !important;font-size:14px !important;
  text-align:center}
.calc-row-note{text-transform:none;letter-spacing:0;font-weight:400;color:var(--ink-soft);font-size:12.5px}
@media (max-width:560px){.mode-btn{font-size:11px;letter-spacing:.03em;padding:8px 4px}
  .calc-grid-4{grid-template-columns:repeat(2,1fr)}}

/* согласие на обработку персональных данных в формах */
.consent{display:flex;gap:10px;align-items:flex-start;margin:2px 0 4px;
  text-transform:none;letter-spacing:normal;font-size:13px;cursor:pointer}
.consent input[type=checkbox]{flex:0 0 auto;width:17px;height:17px;margin:2px 0 0;
  accent-color:var(--ink);cursor:pointer}
.consent span{font-size:13px;line-height:1.5;color:var(--ink-soft)}
.consent a{color:var(--ink)}
.consent.consent-err span{color:#8c2b20}
.consent.consent-err input[type=checkbox]{outline:2px solid #8c2b20;outline-offset:2px}

/* уведомление об использовании cookie */
.cookie{position:fixed;left:0;right:0;bottom:0;z-index:120;
  background:rgba(236,235,231,.97);border-top:1px solid var(--line-strong);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  box-shadow:0 -14px 34px -18px rgba(26,26,26,.3);
  transform:translateY(100%);transition:transform .38s cubic-bezier(.16,1,.3,1)}
.cookie.is-open{transform:translateY(0)}
.cookie-in{max-width:1180px;margin:0 auto;padding:18px 26px;
  display:flex;gap:22px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.cookie p{font-size:13px;line-height:1.55;margin:0;max-width:76ch;color:var(--ink-soft)}
.cookie p a{color:var(--ink)}
.cookie-act{display:flex;gap:12px;align-items:center;flex-shrink:0}
.cookie-act .chip{padding:10px 18px;font-size:13px}
@media (max-width:700px){
  .cookie-in{padding:16px 18px;gap:14px}
  .cookie-act{width:100%}
  .cookie-act .chip{flex:1 1 auto;text-align:center}
}

/* ---------- страница статьи ---------- */
.artpage .shell{max-width:1220px}
.art{max-width:none;text-align:justify;text-justify:inter-word;
  hyphens:auto;-webkit-hyphens:auto;overflow-wrap:break-word}
.art h3,.art figcaption,.art .art-meta,.art .stats,.art table,.art .src-list{text-align:left;hyphens:manual}
.art > h2{max-width:46ch;text-align:left;hyphens:manual;font-size:clamp(21px,2vw,28px);line-height:1.2;
  margin:54px 0 16px;padding-top:18px;border-top:1px solid var(--line);scroll-margin-top:96px}
.art > h2:first-child{margin-top:0;padding-top:0;border-top:0}
.art p{max-width:none;line-height:1.72}
.art p strong,.art li strong{color:var(--ink);font-weight:600}
.art a{color:var(--ink);text-decoration:none;border-bottom:1px solid var(--line-strong)}
.art a:hover{border-bottom-color:var(--ink);background:rgba(255,255,255,.4)}
.art ul{list-style:none;padding:0;margin:0 0 22px}
.art ul li{position:relative;padding:0 0 12px 22px;color:var(--ink-soft);line-height:1.65}
.art ul li::before{content:'';position:absolute;left:0;top:12px;width:11px;height:1px;background:var(--line-strong)}
.art ol{counter-reset:a;list-style:none;padding:0;margin:0 0 22px}
.art ol li{counter-increment:a;position:relative;padding:0 0 12px 34px;color:var(--ink-soft);line-height:1.65}
.art ol li::before{content:counter(a,decimal-leading-zero);position:absolute;left:0;top:1px;
  font-size:12px;letter-spacing:.08em;color:var(--ink-soft)}
.art-meta{display:flex;flex-wrap:wrap;gap:8px 26px;align-items:baseline;font-size:11px;
  letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft);
  padding-top:20px;border-top:1px solid var(--line-strong);max-width:none}

/* врезка с цифрами внутри текста */
.art-stats{margin:36px 0 40px}
.art-stats .stats{grid-template-columns:repeat(4,minmax(0,1fr))}
.art-stats .stats div{padding:16px 18px 0 0}
.art-stats .stats b{font-size:clamp(22px,2.2vw,30px)}
.art-stats .stats span{font-size:12.5px;max-width:24ch}

/* место под фотографию */
.ph{margin:34px 0 38px}
.ph-box{border:1px dashed var(--line-strong);background:rgba(255,255,255,.34);
  aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;padding:24px}
.ph-box span{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft);text-align:center}
.ph picture{display:block}
.ph img{display:block;width:100%;height:auto;border:1px solid var(--line-strong)}
.ph-person{max-width:320px;margin:26px 0 30px}
.ph figcaption{margin-top:12px;font-size:13px;line-height:1.55;color:var(--ink-soft)}

/* оглавление */
.toc{list-style:none;counter-reset:t;padding:0;margin:0;
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 56px;align-items:start}
.toc li{counter-increment:t;border-top:1px solid var(--line)}
.toc a{display:grid;grid-template-columns:34px minmax(0,1fr);gap:12px;
  padding:13px 0;text-decoration:none;font-size:15px;color:var(--ink-soft)}
.toc a::before{content:counter(t,decimal-leading-zero);font-size:12px;letter-spacing:.08em;padding-top:3px}
.toc a:hover{color:var(--ink)}
.toc a:hover span{border-bottom:1px solid var(--ink)}

.tbl-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.tbl-wrap table{min-width:820px}
.src-list{list-style:none;padding:0;margin:0;display:grid;gap:11px;font-size:15px;max-width:none}
.src-list a{text-decoration:none;border-bottom:1px solid var(--line)}
.src-list a:hover{border-bottom-color:var(--ink)}

@media (max-width:768px){
  .art{text-align:left}
  .toc{grid-template-columns:minmax(0,1fr);gap:0}
  .art-stats .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .art > h2{margin:42px 0 14px}
  .ph-box{aspect-ratio:4/3}
}

/* ---------- карточки статей в разделе ---------- */
.acards{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:34px 48px}
.acard{border-top:1px solid var(--line-strong);padding-top:20px;max-width:640px}
.acard-meta{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft);margin:0 0 12px}
.acard h3{font-size:clamp(19px,1.7vw,23px);line-height:1.25;letter-spacing:-.01em;margin:0 0 12px;max-width:30ch}
.acard h3 a{text-decoration:none;border-bottom:1px solid var(--line)}
.acard h3 a:hover{border-bottom-color:var(--ink)}
.acard p{font-size:15.5px;max-width:56ch}
.acard .chip{margin-top:6px}
@media (max-width:768px){.acards{grid-template-columns:minmax(0,1fr);gap:28px}}

/* ---------- компактный указатель заметок ---------- */
.nlist{border-top:1px solid var(--line-strong)}
.nrow{border-bottom:1px solid var(--line)}
.nrow>summary{
  list-style:none;cursor:pointer;display:grid;
  grid-template-columns:132px minmax(0,1fr) 62px 18px;
  align-items:baseline;gap:0 22px;padding:14px 4px 14px 0;
  transition:background-color .2s ease;
}
.nrow>summary::-webkit-details-marker{display:none}
.nrow>summary::after{content:'+';margin:0;font-size:15px;line-height:1.3;opacity:.42;text-align:right;justify-self:end}
.nrow[open]>summary::after{content:'\2013'}
.nrow>summary:hover,.nrow[open]>summary{background:rgba(255,255,255,.28)}
.nrow-date{font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-soft);white-space:nowrap}
.nrow-title{font-size:17px;line-height:1.32;letter-spacing:-.01em;font-weight:500;text-decoration:none;border-bottom:1px solid transparent}
.nrow-title:hover{border-bottom-color:var(--ink)}
.nrow-read{font-size:11.5px;letter-spacing:.06em;color:var(--ink-soft);text-align:right;white-space:nowrap}
.nrow-body{padding:0 0 18px 154px;max-width:74ch}
.nrow-body p{font-size:15px;margin:0 0 12px}
@media (max-width:768px){
  .nrow>summary{grid-template-columns:minmax(0,1fr) 54px 16px;gap:4px 10px;padding:13px 0}
  .nrow-date{grid-column:1;order:1;font-size:11px}
  .nrow-read{grid-column:2;grid-row:1;order:2}
  .nrow>summary::after{grid-column:3;grid-row:1;order:2}
  .nrow-title{grid-column:1/-1;grid-row:2;order:3;font-size:16.5px}
  .nrow-body{padding:0 0 16px}
}

/* ---------- счётчик по перечню объектов ---------- */
.tally{padding:52px 0 8px}
.tally .label{margin:0 0 26px}
.tally-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0}
.tally-cell{border-top:1px solid var(--line-strong);padding:22px 34px 4px 0}
.tally-cell + .tally-cell{border-left:1px solid var(--line);padding-left:34px}
.tally-pre{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft);margin:0 0 10px}
.tally-num{display:flex;align-items:baseline;gap:9px;margin:0 0 14px;
  font-size:clamp(44px,5.4vw,68px);line-height:.94;letter-spacing:-.035em;font-weight:600;
  font-variant-numeric:tabular-nums}
.tally-unit{font-size:clamp(15px,1.3vw,18px);font-weight:500;letter-spacing:-.01em;color:var(--ink-soft)}
.tally-note{font-size:14px;line-height:1.45;color:var(--ink-soft);margin:0;max-width:30ch}
.tally-foot{font-size:13px;color:var(--ink-soft);margin:30px 0 0;max-width:74ch}
@media (max-width:900px){
  .tally-grid{grid-template-columns:minmax(0,1fr)}
  .tally-cell,.tally-cell + .tally-cell{border-left:0;padding:20px 0 6px}
  .tally-note{max-width:46ch}
}

/* ---------- переработано материала ---------- */
.tally-mats{font-size:15px;color:var(--ink);margin:26px 0 0;max-width:74ch}
.tally-mats b{font-weight:600;font-variant-numeric:tabular-nums;white-space:nowrap}

/* ---------- инфополоса погоды на главной ---------- */
.wx{padding:0 0 46px}
.wx[hidden]{display:none}
.wx .label{margin:0 0 18px}
.wx-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;max-width:860px}
.wx-cell{border-top:1px solid var(--line-strong);padding:16px 30px 0 0}
.wx-cell + .wx-cell{border-left:1px solid var(--line);padding-left:30px}
.wx-city{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft);margin:0 0 9px}
.wx-now{display:flex;align-items:baseline;gap:9px;margin:0 0 8px;font-size:24px;font-weight:600;letter-spacing:-.02em}
.wx-now .wx-sky{font-size:14px;font-weight:400;color:var(--ink-soft);letter-spacing:0}
.wx-verdict{font-size:14px;line-height:1.5;margin:0;max-width:40ch}
.wx-verdict .wx-flag{display:inline-block;width:7px;height:7px;border-radius:50%;
  margin-right:8px;vertical-align:1px;background:var(--ink-soft)}
.wx-verdict.is-good .wx-flag{background:#2f6f4f}
.wx-verdict.is-bad .wx-flag{background:#a2622c}
.wx-next{color:var(--ink-soft)}
.wx-next b{font-weight:600;color:var(--ink)}
@media (max-width:768px){
  .wx-grid{grid-template-columns:minmax(0,1fr)}
  .wx-cell,.wx-cell + .wx-cell{border-left:0;padding:15px 0 0}
}

/* ---------- «заметка наугад» на главной ---------- */
.pick{padding:0 0 46px}
.pick .label{margin:0 0 16px}
.pick-body{max-width:680px;border-top:1px solid var(--line-strong);padding-top:16px}
.pick-title{display:inline-block;font-size:20px;line-height:1.3;font-weight:600;
  letter-spacing:-.01em;color:var(--ink);text-decoration:none;
  border-bottom:1px solid var(--line-strong);padding-bottom:2px;
  transition:border-color .25s cubic-bezier(.16,1,.3,1),opacity .25s}
.pick-title:hover{border-bottom-color:var(--ink)}
.pick-lead{font-size:14px;line-height:1.6;color:var(--ink-soft);margin:12px 0 0;max-width:62ch}
.pick-foot{display:flex;flex-wrap:wrap;align-items:baseline;gap:8px 22px;margin:14px 0 0;
  font-size:11px;letter-spacing:.06em;text-transform:uppercase}
.pick-meta{color:var(--ink-soft)}
.pick-roll{appearance:none;background:none;border:0;padding:0;cursor:pointer;
  font:inherit;font-size:11px;letter-spacing:.06em;text-transform:uppercase;
  color:var(--ink);border-bottom:1px dotted var(--ink-soft);
  transition:transform .18s cubic-bezier(.16,1,.3,1),border-color .25s}
.pick-roll:hover{border-bottom-color:var(--ink)}
.pick-roll:active{transform:translateY(1px)}
.pick-all{font-size:11px;letter-spacing:.06em}
.pick-swap{animation:pick-in .38s cubic-bezier(.16,1,.3,1)}
@keyframes pick-in{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.pick-swap{animation:none}}

/* Быстрая заявка одним полем после расчёта */
.quick{margin:22px 0 14px;padding:18px 0 0;border-top:1px solid var(--line-strong)}
.quick .label{margin:0 0 14px}
.quick-form{display:flex;gap:10px;flex-wrap:wrap}
.quick-form input{flex:1 1 180px;min-width:0}
.quick-form .chip{flex:0 0 auto}
.calc-out .quick .chip{margin-top:0}
.quick-status{min-height:18px;margin:10px 0 0}
.quick-msg{margin-top:12px}
.quick-msg .chip{padding:10px 14px;font-size:14px}
.quick-note{margin-top:12px;font-size:12px}
@media (max-width:720px){.quick-form .chip{flex:1 1 100%;text-align:center}}