:root{
  --ink:#1e2732;        /* графіт — база */
  --ink-2:#27313f;
  --accent:#2f7fd1;     /* синій — акцент */
  --accent-d:#1c5aa8;
  --page:#ffffff;
  --page-alt:#f5f8fb;
  --tx:#1b2430;
  --tx-mut:#5b6472;
  --line:#e6eaf0;
  --line-dark:#303a48;
  --radius:12px;
  --wrap:1080px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--tx);
  background:var(--page);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--accent-d);text-decoration:none}
h1,h2,h3{margin:0;line-height:1.2;font-weight:700;letter-spacing:-.01em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
.wrap.narrow{max-width:760px}

/* ---- buttons ---- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--accent);color:#fff;font-weight:600;font-size:15px;
  padding:11px 20px;border-radius:10px;border:1px solid transparent;cursor:pointer;
  transition:transform .12s ease,background .2s ease,box-shadow .2s ease;white-space:nowrap}
.btn:hover{background:var(--accent-d);transform:translateY(-1px);box-shadow:0 8px 22px rgba(28,90,168,.28)}
.btn-lg{padding:14px 26px;font-size:16px}
.btn-sm{padding:8px 15px;font-size:14px}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.28)}
.btn-ghost:hover{background:rgba(255,255,255,.08);box-shadow:none}
.btn-on-dark{background:#fff;color:var(--ink)}
.btn-on-dark:hover{background:#eaf1f9;color:var(--accent-d)}

/* ---- nav ---- */
.nav{position:sticky;top:0;z-index:50;background:rgba(30,39,50,.92);
  backdrop-filter:saturate(140%) blur(8px);border-bottom:1px solid transparent;transition:border-color .2s}
.nav.scrolled{border-bottom-color:var(--line-dark)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px}
.brand-tx{color:#eef2f6;font-weight:600;font-size:19px}
.brand-tx .dim{color:#8b97a8;font-weight:500}
.nav-links{display:flex;align-items:center;gap:22px}
.nav-links a{color:#c3cdd9;font-size:15px;font-weight:500}
.nav-links a:hover{color:#fff}
.nav-links a.btn{color:#fff}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.burger span{width:22px;height:2px;background:#eef2f6;border-radius:2px;transition:.25s}

/* ---- hero ---- */
.hero{background:var(--ink);color:#eef2f6;padding:72px 0 64px;overflow:hidden}
.hero-in{text-align:center;max-width:820px;margin:0 auto}
.badge{display:inline-block;font-size:13px;color:#8fbdec;background:#22344a;
  padding:5px 13px;border-radius:20px;margin-bottom:20px}
.hero h1{font-size:clamp(30px,5.4vw,50px);color:#fff;margin-bottom:18px}
.lead{font-size:clamp(16px,2.2vw,19px);color:#a9b4c2;max-width:640px;margin:0 auto 26px}
.cta-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.hero-note{margin-top:16px;font-size:13px;color:#7e8a99}

/* before/after */
.ba{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:14px;
  margin:44px auto 0;max-width:760px;text-align:left}
.ba-label{font-size:13px;margin-bottom:8px}
.ba-before{color:#8b97a8}
.ba-after{color:#8fbdec}
.ba-card{border-radius:12px;padding:12px 14px}
.ba-dull{background:var(--ink-2);border:1px solid var(--line-dark)}
.ba-arrow{display:flex;align-items:center;justify-content:center}
.ba .row{display:flex;justify-content:space-between;font-size:13px;color:#9aa7b8;padding:4px 0}
.ba .row.head{color:#8b97a8;border-bottom:1px solid var(--line-dark);padding-bottom:5px;margin-bottom:2px}
.ba-nice{background:#fff;padding:0;overflow:hidden;box-shadow:0 18px 46px rgba(0,0,0,.34)}
.nice-head{background:var(--accent-d);color:#fff;font-weight:600;font-size:13px;padding:9px 14px}
.nice-body{padding:12px 14px}
.nice-cap{font-size:12px;color:#7a8496}
.nice-total{font-size:24px;font-weight:700;color:var(--tx);margin-bottom:6px}
.nice-body .row{color:var(--tx-mut);border-top:1px solid var(--line);padding-top:6px}
.nice-body .row:first-of-type{margin-top:2px}

/* ---- sections ---- */
.sect{padding:76px 0}
.sect.alt{background:var(--page-alt)}
.sect h2,.trust h2,.final h2{font-size:clamp(24px,3.6vw,34px);text-align:center}
.sub{text-align:center;color:var(--tx-mut);font-size:17px;margin:12px auto 0;max-width:620px}
.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px;margin-top:40px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.sect.alt .card{background:#fff}
.card h3{font-size:18px;margin:14px 0 8px}
.card p{margin:0;color:var(--tx-mut);font-size:15px}
.ic{width:44px;height:44px;border-radius:10px;background:#eaf2fb;color:var(--accent-d);
  display:flex;align-items:center;justify-content:center}
.ic svg{width:23px;height:23px}
.steps .step-n{width:36px;height:36px;border-radius:50%;background:var(--accent);color:#fff;
  font-weight:700;display:flex;align-items:center;justify-content:center;font-size:17px}
.steps h3{margin-top:14px}

/* browser / iframe */
.browser{margin:40px auto 0;max-width:940px;border:1px solid var(--line);border-radius:14px;
  overflow:hidden;box-shadow:0 20px 60px rgba(30,39,50,.14);background:#fff}
.browser-bar{display:flex;align-items:center;gap:7px;padding:11px 14px;background:#eef1f5;border-bottom:1px solid var(--line)}
.bdot{width:11px;height:11px;border-radius:50%;background:#cfd6df}
.burl{margin-left:12px;font-size:13px;color:var(--tx-mut);background:#fff;
  padding:4px 12px;border-radius:20px;border:1px solid var(--line)}
.browser iframe{width:100%;height:600px;border:0;display:block;background:#fff}
.center{text-align:center;margin-top:24px}

/* trust band */
.trust{background:var(--ink);color:#eef2f6;padding:66px 0}
.trust-in{text-align:center;max-width:720px;margin:0 auto}
.trust h2{color:#fff}
.trust p{color:#aeb9c6;font-size:18px;margin-top:16px}
.trust b{color:#fff}

/* price */
.price-card{max-width:480px;margin:40px auto 0;background:#fff;border:1px solid var(--line);
  border-radius:16px;padding:36px 30px;text-align:center;box-shadow:0 14px 40px rgba(30,39,50,.08)}
.price-badge{display:inline-block;font-size:13px;color:var(--accent-d);background:#eaf2fb;
  padding:4px 12px;border-radius:20px}
.price-big{font-size:38px;font-weight:700;margin:12px 0 6px}
.price-card p{color:var(--tx-mut);margin:0 0 22px}

/* faq */
.faq{margin-top:34px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:10px;padding:2px 18px;margin-bottom:10px}
.faq summary{cursor:pointer;font-weight:600;padding:16px 0;list-style:none;position:relative;padding-right:28px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:2px;top:50%;transform:translateY(-50%);
  font-size:22px;color:var(--accent);font-weight:400;transition:transform .2s}
.faq details[open] summary::after{content:"–"}
.faq details p{margin:0 0 16px;color:var(--tx-mut)}

/* final */
.final{background:linear-gradient(180deg,var(--ink-2),var(--ink));color:#fff;padding:82px 0;text-align:center}
.final-in{max-width:680px;margin:0 auto}
.final h2{color:#fff}
.final p{color:#aeb9c6;font-size:18px;margin:14px 0 28px}
.final-handle{margin-top:16px;color:#8fbdec;font-size:14px}

/* footer */
.foot{background:var(--ink);color:#9aa7b8;padding:34px 0;border-top:1px solid var(--line-dark)}
.foot-in{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px}
.foot-links{display:flex;gap:20px;flex-wrap:wrap}
.foot-links a{color:#b6c1cf;font-size:14px}
.foot-links a:hover{color:#fff}
.foot-copy{font-size:13px;color:#75818f}

/* reveal animation */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* responsive */
@media(max-width:720px){
  .nav-links{position:absolute;top:64px;left:0;right:0;background:var(--ink);flex-direction:column;
    align-items:stretch;gap:0;padding:8px 0;border-bottom:1px solid var(--line-dark);
    max-height:0;overflow:hidden;transition:max-height .28s ease}
  .nav-links.open{max-height:340px}
  .nav-links a{padding:13px 20px}
  .nav-links a.btn{margin:8px 20px}
  .burger{display:flex}
  .ba{grid-template-columns:1fr;max-width:340px}
  .ba-arrow{transform:rotate(90deg)}
  .browser iframe{height:480px}
  .sect{padding:56px 0}
}

/* designs gallery */
.designs-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:16px;margin-top:38px}
.thumb{transition:transform .2s ease}
.thumb:hover{transform:translateY(-4px)}
.th-card{border:1px solid var(--line);border-radius:10px;overflow:hidden;box-shadow:0 8px 22px rgba(30,39,50,.10)}
.th-head{background:var(--h);color:#fff;font-size:11px;font-weight:600;padding:8px 11px}
.th-body{background:var(--bg);color:var(--tx);padding:10px 11px}
.th-total{font-size:16px;font-weight:700;margin-bottom:6px}
.th-row{display:flex;justify-content:space-between;font-size:11px;color:var(--mut);padding:2px 0}
.th-name{text-align:center;font-size:13px;color:var(--tx-mut);margin-top:9px}

/* qr on final cta */
.qr-wrap{display:flex;flex-direction:column;align-items:center;gap:9px;margin-top:30px}
.qr{background:#fff;padding:10px;border-radius:14px;width:148px;height:148px;
  display:flex;align-items:center;justify-content:center;box-shadow:0 10px 30px rgba(0,0,0,.25)}
.qr img,.qr canvas{display:block;width:128px;height:128px}
.qr-cap{font-size:13px;color:#8fbdec}

/* коли відкрито як Telegram Mini App — ховаємо зайве + прибираємо «резинку» скролу */
.in-telegram{background-color:#1e2732}
.in-telegram, .in-telegram body{overscroll-behavior:none}
.in-telegram .nav{display:none}
.in-telegram .progress{display:none}
.in-telegram .nav-links a.btn{display:none}
.in-telegram .qr-wrap{display:none}

/* анімований логотип */
.logo-mark{transition:transform .28s cubic-bezier(.2,.8,.2,1)}
.brand:hover .logo-mark{transform:scale(1.07) rotate(-3deg)}
.logo-mark .lm-bar{transform-box:fill-box;transform-origin:top;animation:lmBar .6s .15s both cubic-bezier(.2,.85,.25,1)}
.logo-mark .lm-l{transform-box:fill-box;opacity:0;animation:lmLine .45s both cubic-bezier(.2,.8,.2,1)}
.logo-mark .lm-l1{animation-delay:.42s}
.logo-mark .lm-l2{animation-delay:.52s}
.logo-mark .lm-l3{animation-delay:.62s}
@keyframes lmBar{from{transform:scaleY(0)}to{transform:scaleY(1)}}
@keyframes lmLine{from{opacity:0;transform:translateX(-4px)}to{opacity:1;transform:none}}

/* ховер-підйом карток + мікронатиск кнопок */
.card{transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(30,39,50,.10);border-color:#cfe0f3}
.ic{transition:transform .22s ease}
.card:hover .ic{transform:scale(1.09)}
.btn:active{transform:translateY(0) scale(.97)}

@media(prefers-reduced-motion:reduce){
  .logo-mark .lm-bar,.logo-mark .lm-l{animation:none!important;opacity:1!important;transform:none!important}
}

/* смуга прогресу скролу */
.progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--accent);z-index:60;will-change:width}

/* компактна шапка при скролі */
.nav-in{transition:height .25s ease}
.nav.scrolled .nav-in{height:54px}
.logo-mark{transition:transform .28s cubic-bezier(.2,.8,.2,1),width .25s ease,height .25s ease}
.nav.scrolled .logo-mark{width:28px;height:28px}
.brand-tx{transition:font-size .25s ease}
.nav.scrolled .brand-tx{font-size:17px}

/* фактура фону — герой (м'яке світіння + креслярська сітка) */
.hero{position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;background:
  radial-gradient(620px 320px at 12% 8%,rgba(47,127,209,.18),transparent 60%),
  radial-gradient(520px 320px at 92% 88%,rgba(47,127,209,.12),transparent 60%)}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:46px 46px;
  -webkit-mask-image:radial-gradient(ellipse at center,#000 35%,transparent 82%);
  mask-image:radial-gradient(ellipse at center,#000 35%,transparent 82%)}
.hero-in{position:relative;z-index:1}

/* фактура фону — світлі секції (тонкі крапки замість плаского білого) */
.sect{background-color:var(--page);background-image:radial-gradient(rgba(30,39,50,.045) 1px,transparent 1px);background-size:24px 24px}
.sect.alt{background-color:var(--page-alt);background-image:radial-gradient(rgba(47,127,209,.06) 1px,transparent 1px);background-size:24px 24px}

/* фонові фото під сильним затемненням (текст лишається читабельним) */
.hero{background-image:linear-gradient(rgba(30,39,50,.86),rgba(30,39,50,.95)),url('hero-bg.jpg');background-size:cover;background-position:center;background-repeat:no-repeat}
.trust{background-image:linear-gradient(rgba(30,39,50,.90),rgba(30,39,50,.93)),url('trust-bg.jpg');background-size:cover;background-position:center;background-repeat:no-repeat}

/* м'яке світіння в тёмних секціях */
.trust,.final{position:relative;overflow:hidden}
.trust::before,.final::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(600px 300px at 85% 12%,rgba(47,127,209,.16),transparent 60%)}
.trust-in,.final-in{position:relative;z-index:1}

/* фінальний акцент «угода закрита» в розділі «Як це працює» */
.how-result{position:relative;margin-top:34px;border-radius:16px;overflow:hidden;aspect-ratio:16/9;box-shadow:0 18px 46px rgba(30,39,50,.14)}
.how-result img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 26%}
.how-result-cap{position:absolute;left:0;right:0;bottom:0;padding:26px 28px;color:#fff;background:linear-gradient(transparent,rgba(20,28,38,.88))}
.hr-title{font-size:22px;font-weight:700}
.hr-sub{font-size:15px;color:#dfe6ee;margin-top:5px}
@media(max-width:720px){.how-result{aspect-ratio:4/3}.how-result-cap{padding:20px}.hr-title{font-size:19px}}

/* секція «живий приклад» — тёмна вітрина з фоновим фото */
#example{background-color:var(--ink);background-image:linear-gradient(rgba(30,39,50,.90),rgba(30,39,50,.94)),url('example-bg.jpg');background-size:cover;background-position:center;background-repeat:no-repeat}
#example h2{color:#fff}
#example .sub{color:#a9b4c2}