/* ИП Гайшун Е. В. Алмазное сверление, Бобруйск */

:root{
  --paper:#F3F4F2;
  --tint:#E8EDEA;
  --ink:#101617;
  --ink-2:#202A2B;
  --mute:#59696A;
  --line:#D2DAD6;
  --teal:#0E5C55;
  --teal-2:#0A433E;
  --teal-soft:#DCEAE6;
  --dark:#0D1516;
  --on-dark:#ECF1EE;
  --on-dark-mute:#97A8A5;
  --danger:#A81B3C;

  --f-display:"Alumni Sans","Arial Narrow",sans-serif;
  --f-body:"Golos Text","Segoe UI",sans-serif;

  --wrap:1240px;
  --pad:26px;
  --head-h:68px;
  --ease:cubic-bezier(.2,.6,.3,1);
}

*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth;scroll-padding-top:84px;-webkit-text-size-adjust:100%;overflow-x:clip}
[id]{scroll-margin-top:84px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--f-body);font-size:16.5px;line-height:1.62;-webkit-font-smoothing:antialiased;overflow-x:clip}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
:focus-visible{outline:3px solid var(--teal);outline-offset:3px}
.sr-only{position:absolute;width:1px;height:1px;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:12px;top:-60px;background:var(--ink);color:var(--on-dark);padding:10px 18px;z-index:99}
.skip:focus{top:10px}
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--pad)}

h1,h2,h3{font-family:var(--f-display);font-weight:700;margin:0;line-height:.96;letter-spacing:-.005em;text-wrap:balance}
p{margin:0}

/* Header */
.head{position:fixed;inset:0 0 auto;z-index:50;background:rgba(243,244,242,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(8px)}
.head-in{display:flex;align-items:center;gap:24px;height:var(--head-h)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--teal)}
.brand__text{font-family:var(--f-display);font-weight:700;font-size:24px;line-height:.9;color:var(--ink);letter-spacing:.01em}
.brand__text small{display:block;font-family:var(--f-body);font-size:10px;font-weight:400;color:var(--mute);letter-spacing:.02em;margin-top:4px}
.nav{display:flex;gap:20px;margin-left:auto}
.nav a{text-decoration:none;font-size:14.5px;color:var(--ink-2);padding:3px 0;border-bottom:1.5px solid transparent}
.nav a:hover{border-color:var(--teal);color:var(--teal)}
.head-phone{font-family:var(--f-display);font-weight:600;font-size:21px;text-decoration:none;white-space:nowrap;letter-spacing:.01em;color:var(--ink)}
.head-phone:hover{color:var(--teal)}
.burger{display:none;margin-left:auto;width:42px;height:42px;border:1px solid var(--line);background:transparent;cursor:pointer;padding:0}
.burger span{display:block;width:17px;height:1.5px;background:var(--ink);margin:4px auto;transition:transform .2s,opacity .2s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}
.menu{position:fixed;inset:var(--head-h) 0 0;background:var(--dark);color:var(--on-dark);z-index:45;padding:28px var(--pad);overflow-y:auto;display:grid;align-content:start;gap:26px}
.menu__nav{display:grid;max-width:var(--wrap);width:100%;margin-inline:auto}
.menu__nav a{font-family:var(--f-display);font-weight:600;font-size:32px;text-decoration:none;color:var(--on-dark);border-bottom:1px solid #1F2C2D;line-height:1.45}
.menu__foot{display:grid;gap:10px;justify-items:start;max-width:var(--wrap);width:100%;margin-inline:auto}
.menu__foot p{color:var(--on-dark-mute);font-size:14px}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;padding:14px 24px;font-family:var(--f-body);font-weight:600;font-size:15.5px;text-decoration:none;border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:background .18s,color .18s,border-color .18s}
.btn--fill{background:var(--teal);color:#fff}
.btn--fill:hover{background:var(--teal-2)}
.btn--line{border-color:var(--ink);color:var(--ink)}
.btn--line:hover{background:var(--ink);color:var(--on-dark)}
.btn--light{border-color:var(--on-dark);color:var(--on-dark)}
.btn--light:hover{background:var(--on-dark);color:var(--dark)}
.menu .btn--line{border-color:var(--on-dark);color:var(--on-dark)}
.menu .btn--line:hover{background:var(--on-dark);color:var(--dark)}

/* Hero */
.hero{padding-top:calc(var(--head-h) + 56px);padding-bottom:64px}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:52px;align-items:end}
.hero__kicker{font-size:13.5px;letter-spacing:.02em;color:var(--teal);font-weight:600;margin-bottom:18px}
.hero__title{font-size:clamp(44px,6.4vw,86px);line-height:.92}
.hero__lede{font-size:18px;color:var(--mute);max-width:46ch;margin-top:20px}
.hero__actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.hero__facts{display:flex;flex-wrap:wrap;gap:38px;margin:38px 0 0;padding-top:16px;border-top:1px solid var(--ink)}
.hero__facts dt{font-size:12.5px;color:var(--mute)}
.hero__facts dd{margin:2px 0 0;font-family:var(--f-display);font-weight:600;font-size:30px;line-height:1}
.hero__media{margin:0}
.hero__media img{width:100%;aspect-ratio:20/23;object-fit:cover}

/* Sections */
.sec{padding:84px 0}
.sec--tint{background:var(--tint)}
.sec--dark{background:var(--dark);color:var(--on-dark)}
.sec-head{display:grid;gap:10px;max-width:70ch;margin-bottom:40px;padding-top:14px;border-top:1px solid var(--ink)}
.h2{font-size:clamp(30px,4vw,52px);line-height:1}
.sec-head__note{color:var(--mute);font-size:17px;max-width:58ch}
.sec-head--dark{border-color:var(--on-dark)}
.sec-head--dark .sec-head__note{color:var(--on-dark-mute)}

/* Spec list */
.spec{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0 40px}
.spec li{padding:16px 0;border-bottom:1px solid var(--line);display:grid;gap:2px}
.spec b{font-family:var(--f-display);font-weight:600;font-size:23px;line-height:1.1}
.spec span{color:var(--mute);font-size:14.5px}

/* Diameter picker */
.picker{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:48px;align-items:center}
.picker__stage{position:relative;margin:0}
.picker__svg{width:100%;height:auto;display:block}
.picker__wall{fill:none;stroke:var(--line);stroke-width:1}
.picker__hole{fill:var(--teal-soft);stroke:var(--teal);stroke-width:2;transition:r .18s var(--ease)}
.picker__inner{fill:none;stroke:var(--teal);stroke-width:1.5;stroke-dasharray:5 6;transition:r .18s var(--ease)}
.picker__cross{stroke:var(--line);stroke-width:1;stroke-dasharray:3 5}
.picker__size{position:absolute;left:0;bottom:8px;font-family:var(--f-display);font-size:44px;font-weight:700;line-height:1}
.picker__size small{font-family:var(--f-body);font-size:15px;font-weight:500;color:var(--mute)}
.picker__panel{display:grid;gap:12px;justify-items:start}
.picker__label{font-size:13.5px;font-weight:600;color:var(--ink-2)}
.picker__range{-webkit-appearance:none;appearance:none;width:100%;height:32px;background:transparent;cursor:pointer;margin:0}
.picker__range::-webkit-slider-runnable-track{height:3px;background:var(--line)}
.picker__range::-moz-range-track{height:3px;background:var(--line)}
.picker__range::-webkit-slider-thumb{-webkit-appearance:none;width:24px;height:24px;margin-top:-10.5px;border-radius:50%;background:var(--teal);border:3px solid var(--paper)}
.picker__range::-moz-range-thumb{width:22px;height:22px;border-radius:50%;background:var(--teal);border:3px solid var(--paper)}
.picker__ticks{display:flex;justify-content:space-between;width:100%;font-size:12px;color:var(--mute);margin-top:-4px}
.picker__sub{font-size:13.5px;font-weight:600;margin-top:14px;color:var(--ink-2);letter-spacing:.01em}
.picker__list{list-style:none;margin:0;padding:0;display:grid;gap:0;width:100%}
.picker__list li{padding:9px 0;border-bottom:1px solid var(--line);font-size:15.5px;display:flex;gap:10px;align-items:baseline}
.picker__list li::before{content:"";width:8px;height:8px;background:var(--teal);flex:none}
.picker__hint{font-size:14px;color:var(--mute);max-width:52ch;margin-top:6px}

/* Compare table */
.compare{width:100%;border-collapse:collapse;font-size:15.5px}
.compare th,.compare td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--line);vertical-align:top}
.compare thead th{font-family:var(--f-body);font-size:12.5px;font-weight:600;color:var(--mute);border-bottom:1px solid var(--ink);padding-bottom:10px}
.compare tbody th{font-weight:600;font-size:15.5px;width:26%}
.compare thead th:nth-child(2){color:var(--teal)}
.compare td:nth-child(2){color:var(--ink)}
.compare td:last-child{color:var(--mute)}

/* Steps */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.steps li{display:grid;gap:8px;align-content:start;padding-top:14px;border-top:1px solid #223032}
.steps__n{font-family:var(--f-display);font-size:15px;font-weight:600;color:#5FB6A6}
.steps h3{font-size:25px;line-height:1.05;color:var(--on-dark)}
.steps p{font-size:15px;color:var(--on-dark-mute)}

/* Geography */
.geo{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px 40px}
.geo__col h3{font-size:23px;padding-bottom:8px;border-bottom:1px solid var(--ink);line-height:1.1}
.geo__col ul{list-style:none;margin:8px 0 0;padding:0;display:grid;gap:6px}
.geo__col li{font-size:15.5px;color:var(--ink-2)}
.geo__note{margin-top:22px;font-size:15px;color:var(--mute)}

/* Price */
.price{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.9fr);gap:48px;align-items:start}
.price__lede{font-size:17.5px;margin-top:14px;max-width:44ch}
.price__note{margin-top:12px;font-size:14.5px;color:var(--mute);max-width:46ch}
.price__list{list-style:none;margin:0;padding:0;display:grid}
.price__list li{display:flex;justify-content:space-between;gap:20px;padding:13px 0;border-bottom:1px solid var(--line);align-items:baseline}
.price__list b{font-family:var(--f-display);font-size:21px;font-weight:600;line-height:1.1}
.price__list span{font-size:14.5px;color:var(--mute);text-align:right;max-width:22ch}

/* FAQ */
.faq{display:grid;max-width:900px}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{font-family:var(--f-display);font-weight:600;font-size:24px;line-height:1.15;padding:18px 34px 18px 0;cursor:pointer;position:relative;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:4px;top:14px;font-size:26px;color:var(--teal);font-weight:400}
.faq details[open] summary::after{content:"−"}
.faq p{padding:0 0 20px;color:var(--mute);max-width:70ch;font-size:16px}

/* Contacts */
.contact{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.85fr);gap:52px;align-items:start}
.contact__info{display:grid;gap:14px;align-content:start}
.contact__lede{color:var(--on-dark-mute);font-size:17px;max-width:44ch}
.contact__phone{font-family:var(--f-display);font-weight:700;font-size:clamp(32px,3.6vw,46px);text-decoration:none;color:var(--on-dark);line-height:1;margin-top:8px}
.contact__phone:hover{color:#5FB6A6}
.contact__row{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:6px}
.contact__row span{font-size:13.5px;color:var(--on-dark-mute)}
.form{display:grid;gap:14px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.field{display:grid;gap:5px}
.field label{font-size:13px;font-weight:600;color:var(--on-dark-mute)}
.field input,.field textarea{width:100%;padding:12px 13px;background:#132022;border:1px solid #2A3A3C;color:var(--on-dark);font-family:inherit;font-size:15.5px;border-radius:0}
.field input::placeholder,.field textarea::placeholder{color:#6C7E7D}
.field input:focus,.field textarea:focus{outline:none;border-color:#5FB6A6;box-shadow:0 0 0 3px rgba(95,182,166,.15)}
.field input[aria-invalid="true"],.field textarea[aria-invalid="true"]{border-color:#E2657E}
.field__error{font-size:12.5px;color:#E2657E}
.form__note{font-size:12.5px;color:var(--on-dark-mute)}
.form__note a{color:#9CCFC4}
.form-success{background:#132022;border:1px solid #2A3A3C;padding:24px;display:grid;gap:12px;justify-items:start}
.form-success__title{font-family:var(--f-display);font-weight:700;font-size:26px;color:var(--on-dark)}
.form-success p{color:var(--on-dark-mute);font-size:15px}
.form-success__actions{display:flex;flex-wrap:wrap;gap:10px}

/* Footer */
.foot{background:var(--dark);color:var(--on-dark);padding:56px 0 24px;border-top:1px solid #223032}
.foot-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,.7fr) minmax(0,.8fr);gap:36px}
.foot__name{font-family:var(--f-display);font-weight:700;font-size:28px;line-height:1}
.foot__about{color:var(--on-dark-mute);font-size:14.5px;margin-top:10px;max-width:44ch}
.foot__nav,.foot__contact{display:grid;gap:7px;align-content:start}
.foot__nav a,.foot__contact a{text-decoration:none;font-size:14.5px;color:var(--on-dark)}
.foot__nav a:hover,.foot__contact a:hover{color:#5FB6A6}
.foot__phone{font-family:var(--f-display);font-size:26px;font-weight:600;line-height:1.1}
.foot__contact p{color:var(--on-dark-mute);font-size:13.5px}
.foot-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;margin-top:40px;padding-top:16px;border-top:1px solid #223032;font-size:12.5px;color:var(--on-dark-mute)}

/* Legal */
.legal{max-width:760px;display:grid;gap:12px}
.legal h2{font-size:26px;margin-top:18px}
.legal p{color:var(--mute);font-size:16px}
.legal a{color:var(--teal)}
.legal__meta{padding-top:14px;border-top:1px solid var(--line);font-size:14px}

@media (max-width:1080px){
  .nav,.head-phone{display:none}
  .burger{display:block}
  .hero-grid,.picker,.price,.contact{grid-template-columns:minmax(0,1fr);gap:34px}
  .hero__media img{aspect-ratio:4/3}
  .spec,.geo,.steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot-grid{grid-template-columns:minmax(0,1fr);gap:24px}
  .compare{font-size:14.5px}
  .compare th,.compare td{padding:12px 10px}
}
@media (max-width:680px){
  :root{--pad:16px}
  body{font-size:16px}
  .sec{padding:56px 0}
  .hero{padding-top:calc(var(--head-h) + 32px)}
  .spec,.geo,.steps,.grid-2{grid-template-columns:minmax(0,1fr)}
  .hero__facts{gap:24px}
  .hero__facts dd{font-size:26px}
  .compare thead{display:none}
  .compare tbody th{width:auto;display:block;padding-bottom:2px;border-bottom:0}
  .compare tbody tr{display:grid;padding:12px 0;border-bottom:1px solid var(--line)}
  .compare td{display:grid;grid-template-columns:64px minmax(0,1fr);gap:8px;border:0;padding:2px 0}
  .compare td::before{font-size:11.5px;color:var(--mute);align-self:center}
  .compare td:nth-child(2)::before{content:"Алмаз"}
  .compare td:nth-child(3)::before{content:"Перфоратор"}
  .faq summary{font-size:21px}
  .picker__size{font-size:34px}
}
@media (prefers-reduced-motion:reduce){
  .picker__hole,.picker__inner{transition:none}
}

/* Цены: таблица, прикидка, коэффициенты */
.price-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.85fr);gap:40px;align-items:start}
.ptable-wrap{min-width:0}
.ptable{width:100%;border-collapse:collapse;font-size:15px}
.ptable caption{text-align:left;font-family:var(--f-display);font-size:19px;font-weight:600;color:var(--mute);padding-bottom:12px}
.ptable th,.ptable td{padding:13px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.ptable thead th{font-size:13px;font-weight:600;color:var(--mute);line-height:1.25;border-bottom:1px solid var(--ink);background:transparent}
.ptable tbody td:first-child{font-family:var(--f-display);font-size:19px;font-weight:600;white-space:nowrap}
.ptable .num{text-align:right;font-family:var(--f-display);font-size:19px;font-weight:600;font-variant-numeric:tabular-nums;white-space:nowrap}
.ptable tbody tr:last-child td{border-bottom:1px solid var(--ink)}
.ptable__note{margin-top:14px;font-size:14px;color:var(--mute);max-width:46ch}

.calc{background:var(--paper);border:1px solid var(--line);padding:26px;min-width:0}
.calc__title{font-family:var(--f-display);font-size:24px;font-weight:600;margin:0 0 16px}
.calc__field{margin-bottom:14px}
.calc__field label{display:block;font-size:13px;color:var(--mute);margin-bottom:6px}
.calc__field select,.calc__field input{width:100%;font:inherit;font-size:15px;color:var(--ink);background:#fff;border:1px solid var(--line);padding:10px 12px;border-radius:0}
.calc__field select:focus-visible,.calc__field input:focus-visible{outline:2px solid var(--teal);outline-offset:1px}
.calc__out{display:flex;align-items:baseline;gap:6px;margin:18px 0 4px;font-family:var(--f-display);font-size:52px;font-weight:700;line-height:1;font-variant-numeric:tabular-nums}
.calc__out small{font-size:22px;font-weight:600;color:var(--mute)}
.calc__note{font-size:13.5px;color:var(--teal);margin:0}
.calc__hint{margin-top:14px;font-size:13px;color:var(--mute)}

.price-more{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:48px;margin-top:52px;align-items:start}
.coef{min-width:0}
.coef__title{font-family:var(--f-display);font-size:24px;font-weight:600;margin:0 0 14px}
.coef__list{list-style:none;margin:0;padding:0;display:grid}
.coef__list li{display:flex;justify-content:space-between;gap:18px;padding:11px 0;border-bottom:1px solid var(--line);align-items:baseline}
.coef__list b{font-weight:400;font-size:15px}
.coef__list span{font-family:var(--f-display);font-size:19px;font-weight:600;white-space:nowrap}
.coef__side{min-width:0;display:grid;gap:14px;align-content:start}
.coef__example{margin:0;font-size:15px;line-height:1.55}
.coef__side .btn{margin-top:6px;justify-self:start}
.picker__price{font-size:16px;margin:14px 0 0}
.picker__price b{font-family:var(--f-display);font-size:22px;font-weight:700;color:var(--teal)}

@media (max-width:1040px){
  .price-grid,.price-more{grid-template-columns:minmax(0,1fr);gap:34px}
  .calc{max-width:520px}
}
@media (max-width:640px){
  .ptable{font-size:12.5px;table-layout:fixed}
  .ptable th,.ptable td{padding:9px 5px}
  .ptable thead th{font-size:10.5px;line-height:1.15}
  .ptable tbody td:first-child,.ptable .num{font-size:15px}
  .ptable tbody td:first-child{white-space:normal}
  .ptable th:nth-child(1){width:27%}
  .ptable caption{font-size:16px}
  .calc{padding:20px}
  .calc__out{font-size:46px}
}