/* Флипперы.рф — стили лендинга */
:root{
  --ground:#F4EFE7;
  --paper:#FFFFFF;
  --field:#FBF8F3;
  --ink:#1D1C1A;
  --text:#4F4A43;
  --muted:#5E5850;
  --line:#DDD4C6;
  --line-soft:#EAE3D8;
  --field-line:#C9BFAF;
  --accent:#B7471D;
  --accent-dark:#8F3715;
  --accent-soft:#E8A382;
  --dark-muted:#B9B0A3;
  --dark-line:#3A3834;
  --display:'Unbounded','Arial Black','Helvetica Neue',Arial,sans-serif;
  --body:'Manrope','Segoe UI','Helvetica Neue',Helvetica,Arial,sans-serif;
  --pad:120px;
  --section:104px;
  --radius-lg:28px;
  --radius:24px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
body{margin:0;background:var(--ground);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased;overflow-x:hidden}
body.no-scroll{overflow:hidden}
h1,h2,h3{margin:0;font-family:var(--display);font-weight:700;letter-spacing:-0.01em;color:inherit;overflow-wrap:break-word;word-break:normal;hyphens:manual;-webkit-hyphens:manual}
p,dl,dd,ol,ul{margin:0}
ol,ul{padding:0;list-style:none}
img,svg{max-width:100%}
a{color:inherit}
button,input{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
[hidden]{display:none!important}

.skip{position:absolute;left:-9999px;top:8px;z-index:100;background:var(--ink);color:#fff;padding:12px 16px;border-radius:8px}
.skip:focus{left:8px}

.container{width:100%;max-width:1440px;margin:0 auto;padding-left:max(var(--pad),env(safe-area-inset-left));padding-right:max(var(--pad),env(safe-area-inset-right))}
.muted{color:var(--muted)}
.accent-text{color:var(--accent)}
.accent-soft{color:var(--accent-soft)}
.small{font-size:14px;line-height:1.5}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:0 28px;border-radius:999px;font-weight:700;font-size:16px;line-height:1.2;text-align:center;text-decoration:none;border:2px solid transparent;cursor:pointer;transition:background-color .15s,color .15s,border-color .15s}
.btn--lg{min-height:58px;padding:0 32px;font-size:17px}
.btn--block{width:100%}
.btn--accent{background:var(--accent);color:#fff}
.btn--accent:hover{background:var(--accent-dark);color:#fff}
.btn--outline{border-color:var(--ink);background:transparent;color:var(--ink)}
.btn--outline:hover{background:var(--ink);color:var(--ground)}
.btn--light{background:var(--ground);color:var(--ink)}
.btn--light:hover{background:#fff}
.btn-row{display:flex;flex-wrap:wrap;gap:16px}

/* Header */
.header{position:sticky;top:0;z-index:40;background:rgba(244,239,231,.94);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);padding-top:env(safe-area-inset-top)}
.header__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:84px}
.logo{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}
.logo__mark{width:36px;height:36px;color:var(--accent);flex-shrink:0}
.logo__text{font-family:var(--display);font-weight:700;font-size:22px;white-space:nowrap}
.logo__text--light{color:var(--ground);font-size:26px}
.nav{display:flex;align-items:center;gap:32px;font-weight:500}
.nav a{text-decoration:none}
.nav a:not(.btn):hover{color:var(--accent-dark)}
.burger{display:none;width:48px;height:48px;border:0;border-radius:12px;background:transparent;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;padding:0}
.burger span{display:block;width:24px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s,opacity .2s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* Hero */
.hero{padding:96px 0 112px}
.hero__grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:72px;align-items:center}
.hero__text{display:flex;flex-direction:column;gap:32px;min-width:0}
.pill{align-self:flex-start;padding:8px 16px;border:1px solid var(--ink);border-radius:999px;font-size:14px;font-weight:600;letter-spacing:.04em;text-transform:uppercase}
h1{font-size:62px;line-height:1.08}
.lead{font-size:20px;line-height:1.55;color:var(--text);max-width:620px}

.project-card{display:flex;flex-direction:column;gap:20px;padding:32px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:0 24px 60px rgba(29,28,26,.10);min-width:0}
.project-card__top{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.tag{display:inline-block;padding:6px 12px;border-radius:8px;background:var(--ground);font-size:13px;font-weight:700;color:var(--text);text-transform:uppercase;letter-spacing:.05em}
.tag--accent{background:var(--accent);color:#fff;border-radius:999px;padding:6px 14px}
.project-card__stage{font-size:14px;font-weight:600;color:var(--accent)}
.project-card__title{font-size:24px;margin-bottom:6px}
.photos{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.photo{position:relative;margin:0;height:170px;border-radius:16px;overflow:hidden;background:#E6DED1}
.photo img{display:block;width:100%;height:100%;object-fit:cover}
.photo figcaption{position:absolute;left:10px;bottom:10px;padding:4px 10px;border-radius:999px;background:rgba(29,28,26,.78);color:#fff;font-size:13px;font-weight:700}
.rows{display:flex;flex-direction:column;gap:12px;font-size:16px}
.rows>div{display:flex;justify-content:space-between;gap:16px;padding-bottom:12px;border-bottom:1px solid var(--line-soft)}
.rows>div:last-child{padding-bottom:0;border-bottom:0}
.rows dt{color:var(--muted)}
.rows dd{font-weight:700;text-align:right;white-space:nowrap}
.progress{display:flex;flex-direction:column;gap:8px}
.progress__label{display:flex;justify-content:space-between;font-size:14px;font-weight:600}
.progress__bar{height:10px;border-radius:999px;background:var(--line-soft);overflow:hidden}
.progress__bar span{display:block;height:100%;border-radius:999px;background:var(--accent)}

/* Sections */
.section{padding:var(--section) 0}
.section--white{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section--tight-top{padding-top:0}
.section h2,.section__title{font-size:44px;line-height:1.12}
.section__title{margin-bottom:48px}
.section__head{display:flex;justify-content:space-between;align-items:flex-end;gap:48px;margin-bottom:48px}
.section__head p{font-size:18px;line-height:1.55;max-width:480px}

.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.step{display:flex;flex-direction:column;gap:16px;padding:32px 28px;border-radius:var(--radius);background:var(--ground)}
.step__num{font-family:var(--display);font-size:40px;font-weight:700;color:var(--accent);line-height:1}
.step h3{font-size:20px;line-height:1.3}
.step p{color:var(--text);line-height:1.55}

.audience{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.aud{display:flex;flex-direction:column;align-items:flex-start;gap:28px;padding:48px;border-radius:var(--radius-lg);min-width:0}
.aud--light{background:var(--paper);border:1px solid var(--line)}
.aud--dark{background:var(--ink);color:var(--ground)}
.aud__label{font-size:14px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--accent)}
.aud--dark .aud__label{color:var(--accent-soft)}
.section .aud h2{font-size:34px;line-height:1.18}
.aud--dark .small{color:var(--dark-muted)}
.checks{display:flex;flex-direction:column;gap:16px;font-size:17px;line-height:1.5}
.checks li{position:relative;padding-left:38px}
.checks li::before{content:"";position:absolute;left:0;top:0;width:24px;height:24px;background:no-repeat center/24px 24px url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23B7471D' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E")}
.aud--dark .checks li::before{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23E8A382' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E")}

.trust{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.trust__item{display:flex;flex-direction:column;gap:16px;padding-top:24px;border-top:3px solid var(--ink)}
.trust__item svg{width:36px;height:36px;fill:none;stroke:var(--accent);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.trust__item h3{font-size:19px;line-height:1.3}
.trust__item p{color:var(--text);line-height:1.55}

/* Calculator */
.calc{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:40px}
.calc__inputs{display:flex;flex-direction:column;gap:30px;padding:40px;border-radius:var(--radius-lg);background:var(--ground);margin:0}
.range{display:flex;flex-direction:column;gap:12px;min-width:0}
.range__head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;font-size:17px}
.range__head label{font-weight:600}
.range__head output{font-weight:700;white-space:nowrap}
.range-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
input[type=range]{width:100%;height:32px;margin:0;background:transparent;accent-color:var(--accent);cursor:pointer;touch-action:pan-y}
.calc__result{display:flex;flex-direction:column;gap:24px;padding:40px;border-radius:var(--radius-lg);background:var(--ink);color:var(--ground);min-width:0}
.calc__big{display:flex;flex-direction:column;gap:8px}
.calc__big span{font-size:15px;color:var(--dark-muted)}
.calc__big strong{font-family:var(--display);font-size:44px;font-weight:700;line-height:1.1;overflow-wrap:anywhere}
.rows--dark{gap:14px;font-size:17px}
.rows--dark>div{padding-bottom:14px;border-bottom-color:var(--dark-line)}
.rows--dark dt{color:var(--dark-muted)}
.rows--dark .hl{color:var(--accent-soft)}
.calc__result .small{color:var(--dark-muted)}

.structs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.struct{display:flex;flex-direction:column;gap:16px;padding:36px;border-radius:var(--radius);background:var(--paper);border:1px solid var(--line)}
.struct h3{font-size:21px;line-height:1.3}
.struct p{color:var(--text);line-height:1.55}

/* FAQ */
.faq{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:72px}
.faq__list details{padding:24px 0;border-bottom:1px solid var(--line)}
.faq__list details:last-child{border-bottom:0}
.faq__list summary{position:relative;padding-right:40px;font-size:19px;font-weight:700;cursor:pointer;list-style:none}
.faq__list summary::-webkit-details-marker{display:none}
.faq__list summary::after{content:"";position:absolute;right:4px;top:50%;width:12px;height:12px;border-right:2.5px solid var(--ink);border-bottom:2.5px solid var(--ink);transform:translateY(-70%) rotate(45deg);transition:transform .2s}
.faq__list details[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.faq__list details p{margin-top:14px;line-height:1.6;color:var(--text)}

/* Form */
.join{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:72px}
.join__text{display:flex;flex-direction:column;gap:24px}
.join__card{padding:44px;border-radius:var(--radius-lg);background:var(--paper);border:1px solid var(--line);min-width:0}
.form{display:flex;flex-direction:column;gap:24px}
.roles{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:0;padding:0;border:0;min-width:0}
.roles legend{padding:0;margin-bottom:12px;font-size:15px;font-weight:600}
.role{position:relative;display:block;cursor:pointer}
.role input{position:absolute;opacity:0;width:1px;height:1px}
.role span{display:flex;align-items:center;justify-content:center;min-height:54px;border-radius:14px;border:2px solid var(--line);background:var(--paper);font-weight:700;transition:background-color .15s,border-color .15s,color .15s}
.role input:checked+span{background:var(--accent);border-color:var(--accent);color:#fff}
.role input:focus-visible+span{outline:3px solid var(--accent);outline-offset:3px}
.fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.field{display:flex;flex-direction:column;gap:8px;min-width:0}
.field label{font-size:15px;font-weight:600}
.field input{width:100%;min-height:52px;padding:0 16px;border-radius:12px;border:1px solid var(--field-line);background:var(--field);font-size:16px;color:var(--ink);-webkit-appearance:none;appearance:none}
.field input:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 3px rgba(183,71,29,.2)}
.field input.is-invalid{border-color:#B42318}
.agree{display:flex;gap:12px;align-items:flex-start;font-size:14px;line-height:1.5;color:var(--text);cursor:pointer}
.agree input{width:20px;height:20px;margin:1px 0 0;flex-shrink:0;accent-color:var(--accent)}
.agree a{color:var(--accent-dark)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form__error{padding:12px 16px;border-radius:12px;background:#FDECEA;color:#8A1C12;font-size:15px}
.form__done{display:flex;flex-direction:column;gap:16px;padding:24px 0;outline:none}
.form__done h3{font-size:26px}
.form__done p{font-size:17px;color:var(--text)}

/* Footer */
.footer{background:var(--ink);color:var(--ground);padding:72px 0 calc(56px + env(safe-area-inset-bottom))}
.footer__top{display:flex;justify-content:space-between;align-items:flex-start;gap:32px;flex-wrap:wrap;margin-bottom:32px}
.footer__domains{margin-top:12px;font-size:15px;color:var(--dark-muted)}
.footer__contacts{display:flex;flex-direction:column;gap:8px;text-align:right}
.footer__contacts a{text-decoration:none}
.footer__contacts a:hover{color:var(--accent-soft)}
.footer__legal{font-size:13px;line-height:1.6;color:var(--dark-muted);max-width:980px}

/* Modal */
.modal{position:fixed;top:0;right:0;bottom:0;left:0;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;padding:24px;padding-top:max(24px,env(safe-area-inset-top));padding-bottom:max(24px,env(safe-area-inset-bottom))}
.modal__backdrop{position:absolute;top:0;right:0;bottom:0;left:0;background:rgba(29,28,26,.62);animation:fade .25s ease}
.modal__box{position:relative;width:560px;max-width:100%;max-height:100%;overflow-y:auto;-webkit-overflow-scrolling:touch;display:flex;flex-direction:column;align-items:flex-start;gap:22px;padding:44px;border-radius:var(--radius-lg);background:var(--paper);box-shadow:0 30px 80px rgba(29,28,26,.35);animation:pop .3s ease;outline:none}
.modal__box h2{font-size:30px;line-height:1.18;padding-right:40px}
.modal__box>p{font-size:17px;line-height:1.55;color:var(--text)}
.modal__x{position:absolute;top:16px;right:16px;width:44px;height:44px;display:flex;align-items:center;justify-content:center;border:0;border-radius:999px;background:var(--ground);cursor:pointer}
.modal__x svg{width:18px;height:18px;fill:none;stroke:var(--ink);stroke-width:2.4;stroke-linecap:round}
.modal__contacts{align-self:stretch;display:flex;flex-direction:column;gap:6px;padding:18px 20px;border-radius:16px;background:var(--ground)}
.modal__contacts a{text-decoration:none;color:var(--text)}
.modal__contacts .modal__phone{font-weight:700;color:var(--ink);font-size:18px}
@keyframes fade{from{opacity:0}to{opacity:1}}
@keyframes pop{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.modal__backdrop,.modal__box{animation:none}}

/* ---------- Адаптив ---------- */
@media (max-width:1280px){
  :root{--pad:64px}
  h1{font-size:52px}
  .nav{gap:24px}
}
@media (max-width:1100px){
  :root{--pad:48px;--section:88px}
  .hero__grid{grid-template-columns:minmax(0,1fr);gap:56px}
  .project-card{max-width:560px}
  .steps,.trust{grid-template-columns:repeat(2,minmax(0,1fr))}
  .calc{grid-template-columns:minmax(0,1fr)}
  .join,.faq{grid-template-columns:minmax(0,1fr);gap:40px}
  .section h2,.section__title{font-size:38px}
}
@media (max-width:980px){
  .header{background:var(--ground);-webkit-backdrop-filter:none;backdrop-filter:none}
  .burger{display:flex}
  .nav{position:fixed;left:0;right:0;top:calc(84px + env(safe-area-inset-top));bottom:0;flex-direction:column;align-items:stretch;gap:0;padding:16px var(--pad) 32px;background:var(--ground);overflow-y:auto;font-size:20px;visibility:hidden;opacity:0;transform:translateY(-8px);transition:opacity .2s,transform .2s,visibility 0s .2s}
  .nav.is-open{visibility:visible;opacity:1;transform:none;transition:opacity .2s,transform .2s}
  .nav a:not(.btn){padding:18px 0;border-bottom:1px solid var(--line)}
  .nav__cta{margin-top:24px}
  .audience,.structs{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:720px){
  :root{--pad:20px;--section:64px;--radius-lg:22px;--radius:18px}
  html{scroll-padding-top:80px}
  .header__inner{min-height:68px}
  .nav{top:calc(68px + env(safe-area-inset-top))}
  .logo__text{font-size:19px}
  .logo__mark{width:30px;height:30px}
  .hero{padding:48px 0 64px}
  .hero__text{gap:24px}
  .pill{font-size:12px}
  h1{font-size:34px;line-height:1.12}
  .lead{font-size:17px}
  .btn-row{flex-direction:column;align-items:stretch}
  .btn-row .btn{width:100%}
  .btn--lg{font-size:16px;padding:0 20px}
  .project-card{padding:22px}
  .photo{height:130px}
  .rows{font-size:15px}
  .section h2,.section__title{font-size:28px}
  .section__title{margin-bottom:32px}
  .section__head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:32px}
  .section__head p{font-size:16px}
  .steps,.trust{grid-template-columns:minmax(0,1fr);gap:16px}
  .trust{gap:32px}
  .step{padding:24px 22px}
  .step__num{font-size:32px}
  .aud{padding:28px 22px;gap:22px}
  .section .aud h2{font-size:24px}
  .checks{font-size:16px}
  .aud .btn{width:100%}
  .calc__inputs,.calc__result{padding:24px 20px}
  .calc__inputs{gap:24px}
  .range-pair{grid-template-columns:minmax(0,1fr);gap:24px}
  .range__head{font-size:16px}
  .calc__big strong{font-size:32px}
  .rows--dark{font-size:15px}
  .struct{padding:24px 22px}
  .faq__list summary{font-size:17px}
  .join__card{padding:24px 20px}
  .fields{grid-template-columns:minmax(0,1fr)}
  .footer{padding-top:48px}
  .footer__contacts{text-align:left}
  .modal{padding:12px;align-items:flex-end}
  .modal__box{padding:28px 22px 24px;gap:18px}
  .modal__box h2{font-size:24px}
  .modal__box>p{font-size:16px}
  .modal__box .btn-row{align-self:stretch}
}
@media (max-width:360px){
  h1{font-size:29px}
  .calc__big strong{font-size:28px}
  .rows--dark>div,.rows>div{flex-direction:column;gap:2px}
  .rows dd{text-align:left}
}