/* Ю космо — контрактное производство косметики. Палитра с Тильды: #ea13ab / #f464fe / #28b6bd */
:root{
  --pink:#ea13ab;
  --pink-2:#f464fe;
  --grad:linear-gradient(100deg,#ea13ab 0%,#f464fe 100%);
  --teal:#28b6bd;
  --dark:#0e0e13;
  --dark-2:#16161d;
  --text:#1c1c22;
  --muted:#6b6b76;
  --grey:#f5f5f7;
  --line:#e7e7ec;
  --r:18px;
  --shadow:0 10px 30px rgba(20,20,40,.08);
  --shadow-lg:0 18px 50px rgba(234,19,171,.16);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Manrope','Segoe UI',system-ui,Arial,sans-serif;color:var(--text);background:#fff;line-height:1.6;font-size:16px}
img{max-width:100%;height:auto;display:block}
a{color:var(--pink);text-decoration:none}
a:hover{text-decoration:none}
h1,h2,h3,h4{line-height:1.22;font-weight:800;letter-spacing:-.015em}
h1{font-size:clamp(30px,4.6vw,52px)}
h2{font-size:clamp(24px,3vw,36px);margin-bottom:14px}
h3{font-size:19px;margin-bottom:8px}
p{margin:0 0 12px}
.container{max-width:1180px;margin:0 auto;padding:0 20px}
.center{text-align:center;margin-top:26px}
.lead{font-size:19px;color:var(--muted);max-width:760px}
.sec{padding:64px 0}
.sec--grey{background:var(--grey)}
.sec--dark{background:var(--dark);color:#fff}
.sec--dark h2{color:#fff}
.sec__sub{color:var(--muted);max-width:720px;margin-bottom:30px}
.sec--dark .sec__sub{color:#b9b9c6}
.badge{display:inline-block;background:rgba(234,19,171,.09);color:var(--pink);border:1px solid rgba(234,19,171,.25);border-radius:999px;padding:6px 14px;font-size:13px;font-weight:700;margin-bottom:18px}
.sec--dark .badge{background:rgba(244,100,254,.12);color:#ffb3f2;border-color:rgba(244,100,254,.35)}

/* кнопки */
.btn{display:inline-block;background:var(--grad);color:#fff;font-weight:700;font-size:15px;padding:13px 26px;border-radius:999px;border:0;cursor:pointer;transition:transform .15s,box-shadow .15s;text-align:center}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn--lg{padding:16px 32px;font-size:16px}
.btn--sm{padding:10px 20px;font-size:14px}
.btn--ghost{background:transparent;color:var(--text);border:2px solid var(--line)}
.btn--ghost:hover{border-color:var(--pink);color:var(--pink);box-shadow:none}
.sec--dark .btn--ghost,.hero .btn--ghost{color:#fff;border-color:rgba(255,255,255,.35)}
.sec--dark .btn--ghost:hover,.hero .btn--ghost:hover{border-color:var(--pink-2);color:#ffb3f2}
.btn--dark{background:var(--dark)}
.btn--dark:hover{box-shadow:0 14px 34px rgba(0,0,0,.25)}
.btn--full{width:100%}

/* шапка (тёмная — под логотип с белой надписью COSMO) */
.hdr{position:sticky;top:0;z-index:50;background:rgba(14,14,19,.96);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.08)}
.hdr__in{display:flex;align-items:center;gap:26px;height:72px;max-width:1280px;margin:0 auto;padding:0 20px}
.hdr__logo img{height:40px;width:auto}
.hdr__logo{flex:0 0 auto}
.hdr__nav{display:flex;gap:20px;flex:1;flex-wrap:nowrap}
.hdr__nav a{color:#dcdce6;font-weight:600;font-size:14.5px;position:relative;padding:4px 0}
.hdr__nav a:hover{color:var(--pink-2)}
.hdr__nav a.is-active{color:var(--pink-2)}
.hdr__right{display:flex;align-items:center;gap:16px}
.hdr__phones{display:flex;flex-direction:column;align-items:flex-end;line-height:1.3}
.hdr__phones a:first-child{font-weight:800;color:#fff;font-size:15px}
.hdr__phones a:last-child{color:#8f8f9e;font-size:12.5px}
.burger{display:none;background:none;border:0;width:40px;height:34px;flex-direction:column;justify-content:center;gap:5px;cursor:pointer;padding:6px}
.burger span{display:block;height:2.5px;background:#fff;border-radius:2px;transition:.2s}
.burger.is-open span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}

/* hero */
.hero{background:radial-gradient(900px 500px at 85% -10%,rgba(234,19,171,.35),transparent 60%),radial-gradient(700px 420px at -10% 110%,rgba(40,182,189,.25),transparent 55%),var(--dark);color:#fff;overflow:hidden}
.hero .badge{background:rgba(244,100,254,.14);border-color:rgba(244,100,254,.4);color:#ffb3f2}
.hero__in{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;padding-top:72px;padding-bottom:72px}
.hero__txt h1{color:#fff}
.hero__txt h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero__lead{color:#c6c6d4;font-size:18px;max-width:560px;margin:16px 0 26px}
.hero__btns{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px}
.hero__photo{min-height:420px;height:100%;border-radius:24px;background-size:cover;background-position:center;box-shadow:0 30px 80px rgba(0,0,0,.45);position:relative}
.hero__photo::after{content:"";position:absolute;inset:0;border-radius:24px;background:linear-gradient(160deg,rgba(234,19,171,.18),transparent 45%)}
.hero__stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.stat{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:12px 14px}
.stat b{display:block;font-size:19px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{font-size:12px;color:#b9b9c6;line-height:1.35;display:block;margin-top:2px}
.hero--page .hero__in{min-height:300px;padding-top:52px;padding-bottom:52px;grid-template-columns:1.2fr .8fr}
.hero--page .hero__lead{margin-bottom:0}

/* хлебные крошки */
.bc{display:flex;align-items:center;gap:10px;padding-top:16px;font-size:13px;color:var(--muted);flex-wrap:wrap}
.bc a{color:var(--muted)}
.bc a:hover{color:var(--pink)}
.bc__sep{width:6px;height:6px;border-top:1.6px solid #c2c2cc;border-right:1.6px solid #c2c2cc;transform:rotate(45deg);display:inline-block}
.bc__cur{color:var(--text);font-weight:700;max-width:480px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* сетки и карточки */
.grid{display:grid;gap:22px}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px;display:flex;flex-direction:column;gap:6px;transition:transform .18s,box-shadow .18s;color:var(--text)}
a.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);color:var(--text)}
.card__img{border-radius:12px;overflow:hidden;aspect-ratio:16/10;background:var(--grey);margin-bottom:8px}
.card__img img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
a.card:hover .card__img img{transform:scale(1.05)}
.card p{color:var(--muted);font-size:14.5px;margin:0}
.card time{color:var(--pink);font-size:12.5px;font-weight:700}
.card__more{margin-top:auto;padding-top:10px;font-weight:700;font-size:14px;color:var(--pink)}
.card__more i{font-style:normal;transition:transform .18s;display:inline-block}
a.card:hover .card__more i{transform:translateX(4px)}

/* преимущества */
.adv{align-items:flex-start}
.adv__icon{width:56px;height:56px;border-radius:16px;background:var(--grad);display:flex;align-items:center;justify-content:center;margin-bottom:14px;box-shadow:0 10px 22px -12px var(--pink)}
.adv__icon svg{width:28px;height:28px;stroke:#fff;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.adv h3{font-size:17.5px}

/* этапы */
.step{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px;position:relative}
.step__n{position:absolute;top:-14px;left:20px;background:var(--grad);color:#fff;font-weight:800;border-radius:999px;padding:4px 14px;font-size:14px;box-shadow:var(--shadow-lg)}
.step__img{border-radius:12px;overflow:hidden;aspect-ratio:16/9;margin:10px 0 12px;background:var(--grey)}
.step__img img{width:100%;height:100%;object-fit:cover}
.step p{color:var(--muted);font-size:14.5px;margin:0}

/* о производстве */
.about__grid{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}
.about__btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}
.about__imgs{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.about__imgs img{border-radius:16px;aspect-ratio:3/4;object-fit:cover;width:100%;box-shadow:var(--shadow)}
.about__imgs img:first-child{aspect-ratio:3/4;transform:translateY(-16px)}

/* клиенты */
.cli{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.cli__item{background:#fff;border:1px solid var(--line);border-radius:12px;display:flex;align-items:center;justify-content:center;padding:14px;min-height:76px}
.cli__item img{max-height:44px;width:auto;max-width:100%;object-fit:contain;filter:grayscale(.15)}
.sec--dark .cli__item{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.1)}

/* FAQ */
.faq{max-width:880px}
.faq__item{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:10px;overflow:hidden}
.faq__item summary{cursor:pointer;padding:16px 20px;font-weight:700;list-style:none;position:relative;padding-right:46px}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary::after{content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);width:26px;height:26px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:800}
.faq__item[open] summary::after{content:"–"}
.faq__body{padding:0 20px 18px;color:var(--muted)}
.faq__body p{margin:0}
.specs{width:100%;max-width:880px;border-collapse:collapse;margin:18px 0 6px;background:#fff}
.specs th,.specs td{border:1px solid var(--line);padding:10px 16px;text-align:left;font-size:14.5px}
.specs th{font-weight:800}
.specs td b{white-space:nowrap}

/* услуги */
.srv__top{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:start;margin-bottom:26px}
.srv__img{border-radius:var(--r);aspect-ratio:4/3;object-fit:cover;width:100%;box-shadow:var(--shadow)}
.srv__top .lead{margin:14px 0 20px}
.srv__intro{max-width:880px;color:var(--muted);font-size:16.5px;line-height:1.6;border-left:4px solid var(--pink);padding-left:18px;margin:0 0 8px}
.quote{max-width:820px;margin:0 auto;border-left:4px solid var(--pink);padding:8px 0 8px 22px}
.quote p{font-size:20px;font-weight:700;line-height:1.5;margin-bottom:10px}
.quote cite{color:var(--muted);font-style:normal;font-size:14.5px}
.case-note{max-width:880px;border:1px dashed var(--line);border-radius:14px;padding:16px 22px;color:var(--muted);font-size:14.5px;background:#fff}
.mcase{display:grid;grid-template-columns:300px 1fr;gap:34px;align-items:center;max-width:920px}
.mcase img{border-radius:var(--r);aspect-ratio:4/3;object-fit:cover;width:100%;box-shadow:var(--shadow)}
.mcase h2{margin:10px 0 8px}
.mcase p{color:var(--muted);margin-bottom:16px}
.cats-links{max-width:880px;color:var(--muted);font-size:14.5px;margin:14px 0 0}
.cats-links a{color:var(--pink);font-weight:600}
@media(max-width:760px){.mcase{grid-template-columns:1fr}}

/* фильтр кейсов */
.ktabs{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 26px}
.ktab{border:1px solid var(--line);background:#fff;border-radius:999px;padding:9px 18px;font:inherit;font-weight:700;font-size:14px;cursor:pointer;transition:all .15s}
.ktab i{font-style:normal;color:var(--pink);font-weight:800}
.ktab:hover{border-color:var(--pink)}
.ktab.is-active{background:var(--grad);color:#fff;border-color:transparent}
.ktab.is-active i{color:#fff}

/* rutube-видео: 4 в ряд, на мобильном — карусель со свайпом */
.videos{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:6px 0 18px}
.videos .vid{position:relative;aspect-ratio:9/16;border-radius:14px;overflow:hidden;background:#000}
.videos .vid iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
@media(max-width:760px){
  .videos{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:12px;padding-bottom:10px;-webkit-overflow-scrolling:touch;scrollbar-width:none}
  .videos::-webkit-scrollbar{display:none}
  .videos .vid{flex:0 0 76%;scroll-snap-align:center}
}

/* отзывы */
.rev{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;display:flex;flex-direction:column;gap:14px}
.rev p{color:#3c3c46;margin:0;line-height:1.55}
.rev__who{margin-top:auto;border-top:1px dashed var(--line);padding-top:12px}
.rev__who b{display:block;font-size:15px}
.rev__who span{color:var(--muted);font-size:13.5px}

/* чек-лист */
.cl-list{list-style:none;margin:0;padding:0;max-width:860px}
.cl-list li{padding:10px 0 10px 40px;position:relative;border-bottom:1px dashed var(--line);color:#3c3c46}
.cl-list li b{position:absolute;left:0;top:10px;width:26px;height:26px;border-radius:8px;background:var(--grad);color:#fff;font-size:13px;display:flex;align-items:center;justify-content:center}
.txtblock{border-top:1px solid var(--line);padding-top:22px;margin-top:22px}
.txtblock h2{font-size:21px}
.txtblock p{color:var(--muted);max-width:860px;margin:0}

/* таймлайн услуг */
.timeline{display:grid;gap:12px;max-width:860px}
.tl__item{display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px}
.tl__item b{flex:0 0 40px;height:40px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px}
.tl__item h3{font-size:16.5px;margin-bottom:3px}
.tl__item p{color:var(--muted);font-size:14px;margin:0}

/* категории: состав */
.cat__top{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.checks{list-style:none;margin:14px 0 22px}
.checks li{padding:9px 0 9px 34px;position:relative;border-bottom:1px dashed var(--line)}
.checks li::before{content:"✓";position:absolute;left:0;top:8px;width:22px;height:22px;border-radius:7px;background:var(--grad);color:#fff;font-size:13px;font-weight:800;display:flex;align-items:center;justify-content:center}

/* статьи */
.article{max-width:820px}
.article__meta{color:var(--pink);font-weight:700;font-size:13.5px;margin-bottom:14px}
.article__cover{border-radius:var(--r);margin:0 0 26px;max-height:400px;object-fit:cover;width:100%}
.article h2{font-size:23px;margin:26px 0 10px}
.article p{color:#3c3c46;margin-bottom:14px}
.article__nav{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.privacy p{font-size:14.5px;color:#3c3c46}

/* основатель, сертификаты */
.founder{display:grid;grid-template-columns:280px 1fr;gap:34px;align-items:center;max-width:920px}
.founder img{border-radius:var(--r);aspect-ratio:3/4;object-fit:cover;box-shadow:var(--shadow)}
.founder blockquote{font-size:20px;font-weight:700;line-height:1.45;border-left:4px solid var(--pink);padding-left:18px;margin-bottom:14px}
.founder p{color:var(--muted)}
.certs{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;max-width:820px}
.certs img{border:1px solid var(--line);border-radius:12px;aspect-ratio:1/1.35;object-fit:cover;transition:transform .18s;background:#fff;padding:8px}
.certs a:hover img{transform:translateY(-4px);box-shadow:var(--shadow)}

/* контакты */
.contacts{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start}
.contacts__row{display:grid;grid-template-columns:130px 1fr;gap:12px;padding:13px 0;border-bottom:1px dashed var(--line);align-items:baseline}
.contacts__row span{color:var(--muted);font-size:13.5px;font-weight:700;text-transform:uppercase;letter-spacing:.04em}
.contacts__row p,.contacts__row a{margin:0;color:var(--text);font-weight:600}

/* формы */
.form{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px;box-shadow:var(--shadow)}
.cta__form .form{background:var(--dark-2);border-color:rgba(255,255,255,.12);box-shadow:none}
.form__row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.inp{width:100%;border:1.5px solid var(--line);border-radius:12px;padding:12px 14px;font:inherit;font-size:15px;margin-bottom:12px;background:#fff;color:var(--text);outline:none;transition:border-color .15s}
.inp:focus{border-color:var(--pink)}
.cta__form .inp{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.18);color:#fff}
.cta__form .inp::placeholder{color:#8f8f9e}
textarea.inp{resize:vertical}
.form__check{display:flex;gap:8px;font-size:12.5px;color:var(--muted);margin-bottom:14px;align-items:flex-start}
.form__check input{margin-top:3px;accent-color:var(--pink)}
.form__check a{color:var(--pink)}
.form__note{font-size:12.5px;color:var(--muted);margin:10px 0 0}
.form__ok{color:#22c55e;font-weight:700;margin:10px 0 0}
.form__err{color:#ef4444;font-weight:700;margin:10px 0 0}
.g-captcha{margin:0 0 14px;min-height:78px}
.cta__form .form__note{color:#8f8f9e}

/* CTA */
.cta__in{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.cta__in>div>p{color:#b9b9c6;max-width:460px}

/* калькулятор */
.calc{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:start}
.calc__form{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:28px;box-shadow:var(--shadow)}
.calc__lbl{display:block;font-weight:700;font-size:14px;margin-bottom:6px}
.calc__lbl .inp{margin-top:6px}
.calc__cap{font-weight:800;font-size:14px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin:20px 0 10px}
.calc__opt{display:flex;gap:10px;align-items:flex-start;border:1.5px solid var(--line);border-radius:12px;padding:12px 14px;margin-bottom:10px;cursor:pointer;font-size:14.5px;transition:border-color .15s}
.calc__opt:hover{border-color:var(--pink)}
.calc__opt input{margin-top:3px;accent-color:var(--pink);flex:0 0 auto}
.calc__opt span{flex:1}
.calc__opt b{margin-left:auto;color:var(--pink);white-space:nowrap}
.calc__lbl--last{margin-top:18px}
.calc__result{background:radial-gradient(600px 300px at 100% 0%,rgba(234,19,171,.5),transparent 60%),var(--dark);color:#fff;border-radius:var(--r);padding:28px;position:sticky;top:92px}
.calc__result h2{font-size:22px}
.calc__price{font-size:clamp(26px,3.4vw,40px);font-weight:800;margin:8px 0 16px;background:linear-gradient(100deg,#fff,#ffb3f2);-webkit-background-clip:text;background-clip:text;color:transparent}
.calc__row{display:flex;justify-content:space-between;gap:14px;border-top:1px solid rgba(255,255,255,.14);padding:11px 0;font-size:14.5px}
.calc__row span{color:#b9b9c6}
.calc__row b{white-space:nowrap;text-align:right;max-width:58%}
.calc__note{font-size:12.5px;color:#8f8f9e;margin:14px 0 18px}

/* форма заявки внутри тёмной карточки результата */
.calc__result .form{background:transparent;border:1px solid rgba(255,255,255,.14);box-shadow:none;padding:18px;margin-top:14px}
.calc__result .inp{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.18);color:#fff}
.calc__result .inp::placeholder{color:#8f8f9e}
.calc__result .form__check{color:#8f8f9e}
.calc__result .form__check a{color:#ffb3f2}
.calc__result .form__ok{color:#7ef0a0}
.calc__result .form__err{color:#ff9b9b}
.calc__result .form__note{color:#8f8f9e}

/* пустой раздел (кейсы) */
.empty{text-align:center;max-width:720px;margin:0 auto;padding:30px 0 10px}
.empty__icon{font-size:56px;margin-bottom:8px}
.empty p{color:var(--muted);margin:12px auto 8px}
.empty .hero__btns{justify-content:center}

/* футер */
.ftr{background:var(--dark);color:#b9b9c6;padding:56px 0 0;margin-top:0;font-size:14px}
.ftr__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr 1.3fr;gap:34px}
.ftr h4,.ftr .ftr__title{color:#fff;font-size:14px;text-transform:uppercase;letter-spacing:.06em;margin-bottom:14px;font-weight:800;line-height:1.22}
.ftr ul{list-style:none}
.ftr li{margin-bottom:9px}
.ftr a{color:#b9b9c6}
.ftr a:hover{color:#ffb3f2}
.ftr__about p{font-size:13.5px}
.ftr__legal{color:#8f8f9e;font-size:12.5px}
.ftr__logo img{height:36px;margin-bottom:14px}
.ftr__addr{margin-bottom:10px}
.ftr__contacts a{font-weight:700;font-size:15px}
.ftr__time{font-size:12.5px;color:#8f8f9e;margin-top:8px}
.ftr__bottom{display:flex;justify-content:space-between;gap:14px;border-top:1px solid rgba(255,255,255,.1);margin-top:44px;padding-top:18px;padding-bottom:20px;font-size:12.5px;color:#8f8f9e;flex-wrap:wrap}
.footer__credit{color:#8f8f9e}
.footer__credit:hover{color:#ffb3f2}

/* адаптив */
@media (max-width:1360px){
  .hdr__phones a:last-child{display:none}
  .hdr__logo img{height:34px}
  .hdr__nav{gap:16px}
  .hdr__nav a{font-size:14px}
}
@media (max-width:1020px){
  .hero__in{grid-template-columns:1fr;padding-top:48px;padding-bottom:48px}
  .hero__photo{min-height:300px}
  .grid--4{grid-template-columns:repeat(2,1fr)}
  .grid--3{grid-template-columns:repeat(2,1fr)}
  .cli{grid-template-columns:repeat(4,1fr)}
  .about__grid,.srv__top,.cat__top,.contacts,.calc,.cta__in{grid-template-columns:1fr}
  .ftr__grid{grid-template-columns:repeat(2,1fr)}
  .hero__stats{grid-template-columns:repeat(2,1fr)}
  .hdr__right{margin-left:auto}
  .calc__result{position:static}
}
@media (max-width:1180px){
  .hdr__phones{display:none}
  .hdr .btn{display:none}
  .burger{display:flex}
  .hdr__nav{position:fixed;inset:72px 0 auto 0;background:#16161d;flex-direction:column;padding:18px 22px 26px;gap:14px;border-bottom:1px solid rgba(255,255,255,.1);box-shadow:0 30px 40px rgba(0,0,0,.45);display:none}
  .hdr__nav.is-open{display:flex}
  .hdr__nav a{font-size:16px}
}
@media (max-width:640px){
  .hdr__in{height:64px;justify-content:space-between;gap:12px}
  .hdr__logo img{height:30px}
  .grid--3,.grid--4{grid-template-columns:1fr}
  .cli{grid-template-columns:repeat(2,1fr)}
  .form__row{grid-template-columns:1fr}
  .founder{grid-template-columns:1fr;justify-items:start}
  .founder img{max-width:280px}
  .certs{grid-template-columns:repeat(2,1fr)}
  .sec{padding:46px 0}
  .contacts__row{grid-template-columns:1fr;gap:2px}
  .ftr__grid{grid-template-columns:1fr}
  .hero__btns .btn{width:100%}
  .calc__opt{flex-wrap:wrap}
  .calc__opt b{flex-basis:100%;margin-left:26px;white-space:normal;text-align:left}
}