:root{
  --red:#FF2C37; --red-d:#D42427; --red-dd:#B31E22;
  --ink:#24242D; --ink-d:#1B1B23; --gray:#939394; --line:#DEDEDF; --bg:#fff; --soft:#F5F5F6;
  --txt:#24242D; --muted:#5E5E66;
  --r:10px; --wrap:1200px;
  --font:'Mulish','Arial',sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{font-family:var(--font);color:var(--txt);background:var(--bg);line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased}
a{color:inherit}
img,svg{max-width:100%}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
h1,h2,h3{line-height:1.15;font-weight:800;letter-spacing:-.01em}
h2{font-size:clamp(1.7rem,3.2vw,2.5rem);margin-bottom:1.2rem}
h3{font-size:1.15rem}
:focus-visible{outline:3px solid var(--red);outline-offset:2px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--red-d);color:#fff;font:800 1rem var(--font);padding:15px 28px;border-radius:var(--r);border:2px solid var(--red-d);text-decoration:none;cursor:pointer;transition:background .2s,transform .2s}
.btn:hover{background:var(--red-dd);border-color:var(--red-dd)}
.btn:active{transform:translateY(1px)}
.btn--sm{padding:10px 20px;font-size:.92rem}
.btn--ghost{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn--ghost:hover{background:rgba(255,255,255,.1);border-color:#fff}
.btn--dark{color:var(--ink);border-color:var(--ink)}
.btn--dark:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn--white{background:#fff;color:var(--red-dd);border-color:#fff}
.btn--white:hover{background:var(--soft);border-color:var(--soft)}
.btn--block{width:100%}

/* header */
.hdr{position:sticky;top:0;z-index:50;background:var(--ink-d);color:#fff;border-bottom:1px solid rgba(255,255,255,.08)}
.hdr__in{display:flex;align-items:center;gap:28px;height:76px}
.logo{display:flex;align-items:center;flex:none}
.logo img{height:54px;width:auto;display:block}
.nav{display:flex;gap:24px;margin-left:auto}
.nav a{text-decoration:none;font-weight:700;font-size:.93rem;color:#DEDEDF;transition:color .2s}
.nav a:hover{color:#fff}
.hdr__r{display:flex;align-items:center;gap:18px}
.tel{text-decoration:none;font-weight:800;white-space:nowrap}

/* hero */
.hero{background:var(--ink-d);color:#fff;overflow:hidden;position:relative}
.hero::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(0deg,rgba(255,255,255,.035) 0 1px,transparent 1px 14px);pointer-events:none}
.hero__in{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;padding-top:72px;padding-bottom:72px;position:relative}
.eyebrow{color:var(--red);font-weight:800;text-transform:uppercase;letter-spacing:.12em;font-size:.82rem;margin-bottom:18px}
.hero h1{font-size:clamp(2.2rem,5vw,3.9rem);font-weight:900;margin-bottom:22px}
.hero h1 span{color:var(--red)}
.lead{font-size:1.15rem;color:#DEDEDF;max-width:560px;margin-bottom:32px}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px}
.hero__facts{list-style:none;display:flex;gap:36px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.14);padding-top:26px}
.hero__facts li{display:flex;flex-direction:column;gap:4px}
.hero__facts b{font-size:1.9rem;font-weight:900;color:#fff;line-height:1}
.hero__facts span{font-size:.85rem;color:var(--gray)}
.hero__art{display:flex;justify-content:center}
.layers{width:100%;max-width:420px;overflow:visible}
.layers rect{transform-box:fill-box;transform-origin:center}

/* sections */
.sec{padding:84px 0}
.sec--dark{background:var(--ink);color:#fff}
.sec--gray{background:var(--soft)}
.sub{color:var(--muted);max-width:640px;margin-bottom:34px;font-size:1.05rem}
.sec--dark .sub,.sec--form .sub{color:#C8C8CC}
.grid{display:grid;gap:20px}
.grid--3{grid-template-columns:repeat(3,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px;transition:border-color .2s,transform .2s,box-shadow .2s}
.card:hover{border-color:var(--red);transform:translateY(-3px);box-shadow:0 10px 28px rgba(36,36,45,.08)}
.card h3{margin:14px 0 8px}
.card p{color:var(--muted);font-size:.97rem}
.ic{display:inline-flex;font-weight:900;color:var(--red-d);font-size:.95rem;letter-spacing:.06em;border-bottom:3px solid var(--red);padding-bottom:3px}

/* features */
.feat{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;margin-top:30px}
.scale{background:var(--ink-d);border-radius:14px;padding:26px;margin:0}
.scale svg{width:100%;height:auto;display:block}
.scale figcaption{font-size:.82rem;color:var(--gray);margin-top:10px;text-align:center}
.spec__row{display:grid;grid-template-columns:165px 1fr;gap:20px;padding:18px 0;border-bottom:1px solid rgba(255,255,255,.12)}
.spec__row:first-child{padding-top:0}
.spec__row b{font-size:1.2rem;line-height:1.25;font-weight:900;color:var(--red)}
.spec__row span{color:#DEDEDF}

/* materials */
.mat{display:flex;flex-direction:column}
.mat ul{list-style:none;margin-top:14px;display:grid;gap:6px;font-size:.92rem;font-weight:600}
.mat li::before{content:"";display:inline-block;width:8px;height:8px;background:var(--red);border-radius:2px;margin-right:10px}
.tag{align-self:flex-start;font-size:.75rem;font-weight:800;text-transform:uppercase;letter-spacing:.06em;padding:4px 10px;border-radius:6px}
.tag--ok{background:#E7F4EA;color:#1E6B34}
.tag--req{background:#FFF1D6;color:#7A4A00}
.mat--cta{background:var(--ink);border-color:var(--ink);color:#fff;justify-content:center;align-items:flex-start}
.mat--cta p{color:#C8C8CC;margin-bottom:20px}
.mat--cta:hover{border-color:var(--red)}

/* chips */
.chips{list-style:none;display:flex;flex-wrap:wrap;gap:12px}
.chips li{background:#fff;border:1px solid var(--line);padding:12px 20px;border-radius:999px;font-weight:700;font-size:.97rem}

/* gallery */
.gal{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.ph__img{aspect-ratio:1/1;border-radius:14px;background:
  repeating-linear-gradient(0deg,rgba(255,255,255,.06) 0 2px,transparent 2px 9px),linear-gradient(135deg,#2e2e38,#1B1B23);
  display:flex;align-items:center;justify-content:center;color:var(--gray);font-weight:700;font-size:.9rem}
.ph figcaption{margin-top:10px;font-weight:700;font-size:.93rem}
.note{margin-top:22px;font-size:.85rem;color:var(--muted)}

/* steps */
.steps{list-style:none;display:grid;grid-template-columns:repeat(5,1fr);gap:20px;margin-top:34px;counter-reset:s}
.steps li{position:relative;padding-top:18px;border-top:2px solid rgba(255,255,255,.18)}
.steps li span{position:absolute;top:-17px;left:0;width:32px;height:32px;border-radius:50%;background:var(--red-d);display:flex;align-items:center;justify-content:center;font-weight:900;font-size:.95rem}
.steps h3{margin:14px 0 8px;font-size:1.05rem}
.steps p{color:#C8C8CC;font-size:.92rem}

/* files */
.two{display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:start}
.check{list-style:none;display:grid;gap:14px}
.check li{padding-left:34px;position:relative;color:#3a3a44}
.check li::before{content:"";position:absolute;left:0;top:5px;width:20px;height:20px;border-radius:50%;background:var(--red-d) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 10.5l3.2 3.2L15 7' fill='none' stroke='white' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/contain no-repeat}
.box{background:var(--soft);border-radius:14px;padding:30px;border-left:4px solid var(--red)}
.box h3{margin-bottom:10px}
.box p{color:var(--muted);margin-bottom:20px}

/* form */
.sec--form{background:var(--ink-d);color:#fff}
.two--form{grid-template-columns:.8fr 1.2fr;gap:56px}
.form__side h2{color:#fff}
.form__list{list-style:none;display:grid;gap:10px;margin:0 0 30px}
.form__list li{padding-left:26px;position:relative;font-weight:600}
.form__list li::before{content:"";position:absolute;left:0;top:9px;width:12px;height:12px;background:var(--red);border-radius:3px}
.contact{color:#C8C8CC;line-height:1.9}
.contact a{color:#fff;font-weight:800;text-decoration:none;border-bottom:1px solid var(--red)}
.form,.done{background:#fff;color:var(--txt);border-radius:16px;padding:34px}
.field{margin-bottom:18px;border:0;min-width:0}
.row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
label,.lbl,legend{display:block;font-weight:700;font-size:.9rem;margin-bottom:6px;color:#33333c}
label i,legend i,.agree i{color:var(--red-d);font-style:normal}
input[type=text],input[type=tel],input[type=email],input[type=number],input[type=date],select,textarea{width:100%;font:600 1rem var(--font);color:var(--txt);background:#fff;border:1.5px solid #C9C9CD;border-radius:var(--r);padding:12px 14px;transition:border-color .2s,box-shadow .2s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--red-d);box-shadow:0 0 0 3px rgba(255,44,55,.2)}
textarea{resize:vertical}
.field.bad input{border-color:var(--red-d);background:#FFF6F6}
.err{display:none;color:var(--red-dd);font-size:.82rem;font-weight:700;margin-top:5px}
.field.bad .err,.agree.bad + .err,.err.show{display:block}
.seg{display:flex;gap:0;border:1.5px solid #C9C9CD;border-radius:var(--r);overflow:hidden}
.seg label{flex:1;margin:0}
.seg input{position:absolute;opacity:0;pointer-events:none}
.seg span{display:block;text-align:center;padding:11px 8px;font-weight:700;font-size:.93rem;cursor:pointer;transition:background .2s,color .2s;border-right:1px solid #C9C9CD}
.seg label:last-child span{border-right:0}
.seg input:checked + span{background:var(--ink);color:#fff}
.seg input:focus-visible + span{outline:3px solid var(--red);outline-offset:-3px}
.drop{border:2px dashed #B3B3B8;border-radius:12px;padding:26px 18px;text-align:center;display:grid;gap:6px;justify-items:center;cursor:pointer;color:#44444c;background:#FAFAFB;transition:border-color .2s,background .2s}
.drop:hover,.drop.over{border-color:var(--red-d);background:#FFF4F4}
.drop svg{color:var(--red-d)}
.drop span{font-size:.82rem;color:var(--muted);max-width:420px}
.flist{list-style:none;display:grid;gap:8px;margin-top:12px}
.flist li{display:grid;grid-template-columns:1fr auto auto;gap:12px;align-items:center;background:var(--soft);border-radius:8px;padding:9px 12px;font-size:.9rem;font-weight:600}
.flist .nm{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.flist .sz{color:var(--muted);font-weight:600;font-size:.82rem}
.flist button{background:none;border:0;cursor:pointer;color:var(--red-dd);font-weight:800;font-size:1.1rem;line-height:1;padding:2px 6px}
.flist .bar{grid-column:1/-1;height:4px;background:#E0E0E3;border-radius:2px;overflow:hidden}
.flist .bar i{display:block;height:100%;width:0;background:var(--red-d);transition:width .15s linear}
.agree{display:flex;gap:12px;align-items:flex-start;font-weight:500;font-size:.88rem;margin-bottom:4px;cursor:pointer}
.agree input{margin-top:3px;width:18px;height:18px;accent-color:var(--red-d);flex:none}
.agree a{color:var(--red-dd)}
.agree + .err{margin-bottom:14px}
.hp{position:absolute;left:-9999px;opacity:0;height:0;width:0}
.fine{font-size:.78rem;color:var(--muted);margin-top:12px;text-align:center}
.done{text-align:center;display:grid;justify-items:center;gap:14px;padding:56px 34px}
.done[hidden]{display:none}
.done p{color:var(--muted);max-width:420px}

/* logos / faq / cta */
.logos{border:2px dashed #C9C9CD;border-radius:14px;padding:44px 20px;text-align:center;color:var(--muted);font-weight:700}
.faq details{max-width:860px}
details{border-bottom:1px solid var(--line)}
summary{list-style:none;cursor:pointer;padding:20px 40px 20px 0;font-weight:800;font-size:1.08rem;position:relative}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);font-size:1.7rem;color:var(--red-d);font-weight:400;transition:transform .25s}
details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
details p{padding:0 40px 22px 0;color:var(--muted)}
.cta{background:linear-gradient(120deg,var(--red-d),#a31c22);color:#fff;padding:72px 0;text-align:center}
.cta h2{margin-bottom:10px}
.cta p{margin-bottom:28px;font-size:1.1rem}
.ftr{background:var(--ink-d);color:var(--gray);font-size:.85rem;padding:26px 0}
.ftr__in{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.ftr a{color:#DEDEDF}

/* responsive */
@media(max-width:1000px){
  .nav{display:none}.hdr__r{margin-left:auto}
  .hero__in,.feat,.two,.two--form{grid-template-columns:1fr}
  .hero__art{display:none}
  .grid--3{grid-template-columns:1fr 1fr}
  .gal{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr;gap:40px 20px}
  .feat{gap:32px}
}
@media(max-width:640px){
  .hdr__in{height:64px}.logo img{height:44px}
  .wrap{padding:0 18px}
  .tel{display:none}
  .sec{padding:56px 0}
  .grid--3,.row{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .spec__row{grid-template-columns:1fr;gap:6px}
  .form,.done{padding:22px}
  .hero__in{padding-top:44px;padding-bottom:44px}
  .hero__facts{gap:22px}
  .btn{width:100%}.hdr .btn{width:auto}
  .hero__cta .btn{width:100%}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
[hidden]{display:none!important}

/* формы для литья */
.cast{margin-top:56px;padding-top:40px;border-top:1px solid rgba(255,255,255,.14)}
.cast h3{font-size:1.5rem;margin-bottom:22px}
.cast__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.cast__card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:22px;display:flex;flex-direction:column;gap:10px}
.cast__card h4{font-size:1.1rem;font-weight:800;color:#fff}
.cast__card p{color:#DEDEDF;font-size:.93rem;flex:1}
.cast__mat{align-self:flex-start;font-size:.78rem;font-weight:800;letter-spacing:.04em;color:#fff;background:var(--red-d);padding:4px 10px;border-radius:6px}
.cast__note{margin-top:18px;font-size:.85rem;color:#B8B8BE}
@media(max-width:1000px){.cast__grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.cast__grid{grid-template-columns:1fr}.cast{margin-top:40px;padding-top:30px}}

/* портфолио */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 28px}
.chip{font:700 .93rem var(--font);padding:10px 18px;border-radius:999px;border:1.5px solid #C9C9CD;background:#fff;color:var(--txt);cursor:pointer;transition:background .2s,color .2s,border-color .2s}
.chip:hover{border-color:var(--ink)}
.chip.is-on{background:var(--ink);border-color:var(--ink);color:#fff}
.works{columns:4 240px;column-gap:18px}
.work{break-inside:avoid;margin:0 0 18px}
.work[hidden]{display:none}
.work__btn{display:block;width:100%;padding:0;border:0;background:none;cursor:zoom-in;border-radius:14px;overflow:hidden;position:relative}
.work__btn img{display:block;width:100%;height:auto;border-radius:14px;transition:transform .35s}
.work__btn:hover img{transform:scale(1.03)}
.work figcaption{margin-top:10px;font-weight:700;font-size:.93rem}
.lb{border:0;padding:0;background:rgba(15,15,20,.94);width:100vw;height:100vh;max-width:none;max-height:none;color:#fff}
.lb::backdrop{background:rgba(15,15,20,.94)}
.lb[open]{display:flex;align-items:center;justify-content:center;gap:12px}
.lb__fig{margin:0;max-width:min(1100px,86vw);max-height:92vh;display:flex;flex-direction:column;align-items:center;gap:12px}
.lb__fig img{max-width:100%;max-height:82vh;border-radius:10px;object-fit:contain}
.lb__fig figcaption{font-weight:700;text-align:center}
.lb__x{position:absolute;top:16px;right:20px;font-size:2.2rem;line-height:1;background:none;border:0;color:#fff;cursor:pointer;padding:6px 12px}
.lb__nav{font-size:3rem;line-height:1;background:rgba(255,255,255,.1);border:0;color:#fff;cursor:pointer;width:52px;height:72px;border-radius:12px;flex:none}
.lb__nav:hover,.lb__x:hover{background:rgba(255,255,255,.22)}
@media(max-width:640px){.works{columns:2 150px;column-gap:12px}.work{margin-bottom:12px}.lb__nav{width:40px;height:56px;font-size:2.2rem}.lb__fig{max-width:78vw}}

/* hero: фото цеха на фоне */
.hero{min-height:clamp(560px,46vw,720px);display:flex;align-items:center;background:#1b1b22}
.hero__bg{position:absolute;inset:0;z-index:0;display:block}
.hero__bg img{position:absolute;right:-10%;top:0;height:100%;width:auto;min-width:64vw;max-width:none;object-fit:cover;object-position:right center;display:block;-webkit-mask-image:linear-gradient(90deg,transparent 0,#000 24%);mask-image:linear-gradient(90deg,transparent 0,#000 24%)}
.hero::after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;background:linear-gradient(90deg,rgba(27,27,34,.96) 0%,rgba(27,27,34,.82) 40%,rgba(27,27,34,.35) 66%,rgba(27,27,34,.1) 100%),linear-gradient(0deg,rgba(27,27,34,.5) 0%,transparent 30%)}
.hero::before{z-index:2}
.hero__in{grid-template-columns:minmax(0,560px);z-index:3;width:100%}
.hero h1{font-size:clamp(2.2rem,4.4vw,3.45rem)}
.hero__txt{text-shadow:0 2px 18px rgba(0,0,0,.35)}
.hero__facts span{color:#d3d3d9}
@media(max-width:1000px){
  .hero__in{padding-top:56px;padding-bottom:40px;grid-template-columns:1fr}
}
@media(max-width:800px){
  .hero{min-height:0;display:block}
  .hero__bg{position:relative;inset:auto;height:auto}
  .hero__bg img{position:relative;right:auto;top:auto;width:100%;min-width:0;height:auto;aspect-ratio:3/2;max-height:340px;object-position:60% 55%;-webkit-mask-image:linear-gradient(180deg,transparent 0,#000 28%);mask-image:linear-gradient(180deg,transparent 0,#000 28%)}
  .hero::after{display:none}
  .hero__in{padding-bottom:0}
}

/* калькулятор */
.csub{max-width:760px;margin-bottom:28px;color:var(--muted)}
.csub a{color:var(--red-d)}
.calc{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(320px,1fr);gap:28px;align-items:start}
.calc__form{display:grid;gap:18px}
.cbox{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 24px 24px;min-width:0}
.cbox legend{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.05rem;padding:0 8px;margin-left:-8px}
.cbox legend span{display:inline-grid;place-items:center;width:26px;height:26px;border-radius:50%;background:var(--ink);color:#fff;font-size:.85rem}
.calc label{display:grid;gap:6px;font-weight:700;font-size:.9rem;color:var(--ink)}
.calc select,.calc input[type=number],.calc input[type=text]{width:100%;font:600 .95rem var(--font);color:var(--ink);background:#fff;border:1.5px solid #C8C8CC;border-radius:8px;padding:10px 12px;min-height:44px}
.calc select:focus,.calc input:focus{border-color:var(--red-d);outline:none;box-shadow:0 0 0 3px rgba(212,36,39,.18)}
.crow2{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}
.crow4{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:12px}
.cnarrow{max-width:320px;margin-bottom:10px}
.cchk{display:flex!important;align-items:center;gap:10px;grid-template-columns:none;font-weight:700;cursor:pointer;margin:8px 0;min-height:36px}
.cchk input{width:20px;height:20px;accent-color:var(--red-d);flex:none}
.cinner{background:var(--soft);border-radius:10px;padding:16px;margin:6px 0 14px;display:grid;gap:12px}
.cinner .crow2{margin-bottom:0}
.chint{font-size:.85rem;color:var(--muted);margin-top:8px}
.cdrop{display:flex;flex-direction:column;align-items:center;gap:6px;text-align:center;border:2px dashed #B4B4BA;border-radius:12px;padding:24px 16px;cursor:pointer;color:var(--muted);transition:border-color .2s,background .2s}
.cdrop b{color:var(--ink)}
.cdrop span{font-size:.88rem}
.cdrop:hover,.cdrop.is-over,.cdrop:focus-visible{border-color:var(--red-d);background:#FFF6F6}
.cbusy{margin-top:10px;font-weight:700;color:var(--red-dd)}
.cerr{color:var(--red-dd);font-size:.88rem;margin-top:8px;font-weight:700;min-height:0}
.cempty{font-size:.9rem;color:var(--muted);margin-top:12px}
.cparts{display:grid;gap:12px;margin-top:12px}
.cpart{border:1px solid var(--line);border-radius:12px;padding:14px 16px;background:#FBFBFC}
.cpart__h{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:8px}
.cpart__h b{overflow-wrap:anywhere}
.cpart__x{border:0;background:none;font-size:1.6rem;line-height:1;cursor:pointer;color:var(--muted);padding:2px 8px;border-radius:6px}
.cpart__x:hover{background:#EEE;color:var(--ink)}
.cpart__g{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:8px 14px;font-size:.8rem;color:var(--muted);margin-bottom:10px}
.cpart__g span{display:grid;gap:2px}
.cpart__g b{font-size:.95rem;color:var(--ink)}
.cpart__f{display:grid;grid-template-columns:140px 1fr;gap:12px}
.cpart__n{font-size:.85rem;background:#EAF6EA;color:#1F5A25;border-radius:8px;padding:8px 10px;margin-bottom:10px}
.cpart__w{font-size:.85rem;background:#FFF1E0;color:#7A4300;border-radius:8px;padding:8px 10px;margin-bottom:10px}
.cman{margin-top:14px}
.cman summary{cursor:pointer;font-weight:700;padding:8px 0}
.cmodes{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.cmode{position:relative;display:block!important;cursor:pointer}
.cmode input{position:absolute;opacity:0;inset:0;width:100%;height:100%;cursor:pointer}
.cmode>span{display:grid;gap:2px;border:1.5px solid #C8C8CC;border-radius:10px;padding:12px 14px;background:#fff;transition:border-color .2s,background .2s}
.cmode b{font-size:1rem}
.cmode small{font-weight:600;color:var(--muted);font-size:.8rem}
.cmode em{font-style:normal;font-weight:800;color:var(--red-d);font-size:1.05rem;margin-top:4px}
.cmode input:checked+span{border-color:var(--red-d);background:#FFF3F3;box-shadow:0 0 0 2px rgba(212,36,39,.2)}
.cmode input:focus-visible+span{outline:3px solid var(--red);outline-offset:2px}
.cres{position:sticky;top:96px;background:var(--ink-d);color:#fff;border-radius:16px;padding:24px;display:grid;gap:14px}
.cres h3{font-size:1.2rem}
.cres__empty{color:#C8C8CC;font-size:.95rem}
.cres__tot{display:grid;gap:2px}
.cres__tot span{font-size:.85rem;color:#C8C8CC}
.cres__tot b{font-size:2.3rem;font-weight:900;line-height:1.1}
.cres__tot small{color:#9A9AA2;font-size:.8rem}
.cres__k{display:grid;grid-template-columns:1fr 1fr;gap:10px;font-size:.78rem;color:#B8B8BE}
.cres__k span{display:grid;gap:2px;background:rgba(255,255,255,.06);border-radius:8px;padding:8px 10px}
.cres__k b{font-size:1rem;color:#fff}
.cres__eq,.cres__n,.cres__w,.cres__foot{font-size:.8rem;color:#B8B8BE}
.cres__w{color:#FFC98A}
.cres__l{list-style:none;display:grid;gap:0}
.cres__l li{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-top:1px solid rgba(255,255,255,.1);font-size:.9rem}
.cres__l li small{display:block;color:#9A9AA2;font-size:.76rem}
.cres__l li b{white-space:nowrap}
.cres__l li.neg b{color:#7DE08B}
@media(max-width:1000px){
  .calc{grid-template-columns:1fr}
  .cres{position:static}
}
@media(max-width:600px){
  .cbox{padding:18px 16px}
  .crow2,.crow4,.cmodes{grid-template-columns:1fr}
  .cpart__f{grid-template-columns:1fr}
  .cres__tot b{font-size:2rem}
}
.cpart__g{grid-template-columns:repeat(5,minmax(0,1fr))}
.cpart__f{grid-template-columns:100px 1fr}
@media(max-width:600px){.cpart__g{grid-template-columns:repeat(2,minmax(0,1fr))}.cpart__f{grid-template-columns:100px 1fr}}

/* как собирается крупная фигура */
.build{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:48px;align-items:center}
.build__list{list-style:none;counter-reset:b;display:grid;gap:12px;margin:22px 0 20px}
.build__list li{counter-increment:b;position:relative;padding-left:46px;line-height:1.45}
.build__list li::before{content:counter(b);position:absolute;left:0;top:0;width:32px;height:32px;border-radius:50%;background:var(--red-d);color:#fff;font-weight:800;display:grid;place-items:center}
.build__note{font-size:.88rem;color:var(--muted);margin:0 0 22px}
.build__fig{margin:0}
.build__btn{display:block;width:100%;padding:0;border:0;background:none;cursor:zoom-in;border-radius:14px;overflow:hidden;box-shadow:0 12px 32px rgba(36,36,45,.2)}
.build__btn img{display:block;width:100%;height:auto}
.build__btn:focus-visible{outline:3px solid var(--red);outline-offset:3px}
.build__fig figcaption{font-size:.88rem;color:var(--muted);margin-top:10px;text-align:center}
@media(max-width:900px){.build{grid-template-columns:1fr;gap:28px}.build__fig{max-width:520px;margin:0 auto}}