/* ============ UkrSwap landing — повтор референса ============ */
:root{
  --blue:#2f6bff; --blue-d:#1f5bef; --blue-ink:#1d4ed8;
  --ink:#101828; --ink-2:#1a2233; --muted:#8a94a6; --muted-2:#aab2c0;
  --bg:#f4f7fc; --surface:#ffffff; --surface-2:#f7f9fd;
  --line:#e8edf5; --line-2:#eef2f8;
  --green:#16a34a; --green-bg:#e7f8ef; --red:#e0473a;
  --amber:#f59e0b; --indigo:#6366f1; --violet:#8b5cf6;
  --usdt:#26a17b; --btc:#f7931a; --eth:#6b7fc7;
  --r-lg:22px; --r-md:16px; --r-sm:12px;
  --shadow-sm:0 2px 10px rgba(16,24,40,.05);
  --shadow:0 10px 30px rgba(16,24,40,.07);
  --shadow-lg:0 24px 60px rgba(31,91,239,.13);
  --ring:0 0 0 4px rgba(47,107,255,.14);
}
[data-theme="dark"]{
  --ink:#eef2f8; --ink-2:#dde3ee; --muted:#8b95a7; --muted-2:#6b7384;
  --bg:#0b1020; --surface:#141a2c; --surface-2:#1a2138;
  --line:#27304a; --line-2:#222a40; --green-bg:#10301f;
  --shadow:0 10px 30px rgba(0,0,0,.4); --shadow-lg:0 24px 60px rgba(0,0,0,.5); --shadow-sm:0 2px 10px rgba(0,0,0,.3);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Manrope",system-ui,sans-serif;background:var(--bg);color:var(--ink);
  line-height:1.55;-webkit-font-smoothing:antialiased;overflow-x:hidden;
  transition:background .3s,color .3s;
}
.container{max-width:1240px;margin:0 auto;padding:0 28px}
a{color:inherit;text-decoration:none}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:none;cursor:pointer;
  font-family:inherit;font-weight:700;font-size:15px;border-radius:13px;padding:12px 20px;
  transition:transform .15s,box-shadow .2s,background .2s,color .2s;white-space:nowrap}
.btn:active{transform:translateY(1px)}
.btn--primary{background:var(--blue);color:#fff;box-shadow:0 8px 20px rgba(47,107,255,.28)}
.btn--primary:hover{background:var(--blue-d);box-shadow:0 12px 26px rgba(47,107,255,.36);transform:translateY(-2px)}
.btn--ghost{background:var(--surface);color:var(--ink);border:1.5px solid var(--line)}
.btn--ghost:hover{border-color:var(--blue);color:var(--blue);transform:translateY(-2px)}
.btn--lg{padding:15px 26px;font-size:16px;border-radius:15px}
.btn--block{width:100%;margin-top:16px}
.btn--wallet{padding:11px 20px}

/* ---------- navbar ---------- */
.nav{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 82%,transparent);
  backdrop-filter:saturate(150%) blur(14px);border-bottom:1px solid transparent;transition:border-color .2s}
.nav.is-stuck{border-color:var(--line)}
.nav__inner{display:flex;align-items:center;gap:30px;height:78px}
.logo{display:inline-flex;align-items:center;font-weight:800;font-size:26px;letter-spacing:-.02em;color:var(--ink)}
.logo-img{height:42px;width:auto;display:block}
.logo-img--dark{display:none}
[data-theme="dark"] .logo-img--light{display:none}
[data-theme="dark"] .logo-img--dark{display:block}
.logo__mark{display:inline-flex;margin:0 -1px;transform:translateY(2px)}
.nav__menu{display:flex;gap:30px;margin-left:14px}
.nav__menu a{font-weight:600;font-size:15px;color:var(--muted);transition:color .2s;position:relative}
.nav__menu a:hover{color:var(--ink)}
.nav__menu a.is-active{color:var(--blue)}
.nav__menu a.is-active::after{content:"";position:absolute;left:0;right:0;bottom:-28px;height:3px;border-radius:3px;background:var(--blue)}
.nav__right{display:flex;align-items:center;gap:14px;margin-left:auto}
.theme-toggle{width:42px;height:42px;border-radius:12px;border:1.5px solid var(--line);background:var(--surface);
  color:var(--ink);cursor:pointer;display:grid;place-items:center;transition:.2s}
.theme-toggle:hover{border-color:var(--blue);color:var(--blue)}
.theme-toggle .i-moon{display:none}
/* language switcher */
.lang{display:inline-flex;background:var(--surface);border:1.5px solid var(--line);border-radius:11px;padding:3px;gap:2px}
.lang__btn{border:none;background:transparent;color:var(--muted);font-family:inherit;font-weight:700;font-size:12.5px;
  cursor:pointer;padding:6px 0;min-width:34px;text-align:center;border-radius:8px;transition:.18s;line-height:1}
.lang__btn:hover{color:var(--ink)}
.lang__btn.is-active{background:var(--blue);color:#fff}
[data-theme="dark"] .theme-toggle .i-sun{display:none}
[data-theme="dark"] .theme-toggle .i-moon{display:block}

/* ---------- hero ---------- */
.hero{position:relative;padding:44px 0 34px}
.hero__grid{display:grid;
  grid-template-columns:minmax(440px,1fr) minmax(250px,310px) minmax(348px,392px);
  grid-template-areas:"copy art calc";column-gap:16px;align-items:start}
.hero__copy{grid-area:copy;align-self:start;min-width:0;animation:rise .7s .05s both}
.hero__art{grid-area:art;position:relative;align-self:center;min-width:0;animation:rise .7s .15s both}
.calc{grid-area:calc;align-self:start;min-width:0;animation:rise .7s .1s both}

.pill{display:inline-flex;align-items:center;gap:8px;background:var(--surface);border:1px solid var(--line);
  border-radius:999px;padding:7px 14px;font-weight:700;font-size:13.5px;color:var(--blue-ink);box-shadow:var(--shadow-sm)}
.pill--ua svg{border-radius:3px;overflow:hidden}
.hero__title{font-size:clamp(34px,4.2vw,48px);line-height:1.1;font-weight:800;letter-spacing:-.025em;margin:18px 0 18px}
.hero__title .t-line{display:block;white-space:nowrap}
.grad-text{background:linear-gradient(95deg,#2f6bff 0%,#7c3aed 42%,#f97316 88%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;white-space:nowrap}
.hero__lead{font-size:17px;color:var(--muted);max-width:480px;margin-bottom:28px}
.hero__cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px}

.hero__trust{display:flex;gap:16px;flex-wrap:wrap;list-style:none}
.hero__trust li{display:inline-flex;align-items:center;gap:7px;font-weight:600;font-size:13px;color:var(--ink-2);white-space:nowrap}
.trust-ic{width:24px;height:24px;border-radius:7px;display:grid;place-items:center;color:#fff}
.trust-ic--blue{background:var(--blue)} .trust-ic--ink{background:var(--ink-2)} .trust-ic--green{background:var(--green)}

/* hero illustration — крупный свап в центре, монеты по углам, блёстки + орбита */
.hero__art{display:grid;place-items:center;overflow:visible}
.art-stage{position:relative;width:100%;max-width:320px;aspect-ratio:1/1;margin:0 auto}
.art-glow{position:absolute;inset:10% 8%;background:
  radial-gradient(circle at 60% 34%,rgba(47,107,255,.26),transparent 62%),
  radial-gradient(circle at 42% 70%,rgba(249,115,22,.18),transparent 62%);filter:blur(40px);z-index:-1}
.art-piece{position:absolute;height:auto;will-change:transform;
  filter:drop-shadow(0 14px 18px rgba(30,58,138,.18))}

/* свап: две стрелки вплотную, крупно */
.p-arrow-blue{left:31%;top: 3%;width:60%;animation:bob 6s ease-in-out infinite}
.p-arrow-rb  {left:11%;top:35%;width:56%;animation:bob 6s ease-in-out infinite .35s}
/* монеты */
.p-eth{left: 6%;top: 1%;width:25%;animation:bob 5s   ease-in-out infinite .25s}
.p-btc{left:60%;top:63%;width:24%;animation:bob 5.4s ease-in-out infinite .6s}
/* орбита */
.art-orbit{position:absolute;left:50%;top:50%;width:106%;height:74%;
  transform:translate(-50%,-50%) rotate(-19deg);border:2px solid rgba(96,165,250,.30);
  border-radius:50%;z-index:0}
/* блёстки */
.p-spk{filter:none}
.p-spk1{left:81%;top:11%;width:10%;animation:twinkle 2.6s ease-in-out infinite}
.p-spk2{left: 3%;top:57%;width: 6%;animation:twinkle 2.6s ease-in-out infinite .8s}
.p-spk3{left:89%;top:47%;width: 8%;animation:twinkle 3s   ease-in-out infinite 1.3s}
.p-spk4{left:47%;top:92%;width: 5%;animation:twinkle 2.8s ease-in-out infinite .5s}
.p-spk5{left:55%;top:-2%;width: 7%;animation:twinkle 3.2s ease-in-out infinite 1s}

/* ---------- calculator card ---------- */
.calc{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;
  box-shadow:var(--shadow-lg);position:relative}
.calc__head{display:flex;justify-content:flex-end;gap:8px;margin-bottom:6px}
.calc__icbtn{width:36px;height:36px;border-radius:10px;border:none;background:var(--surface-2);color:var(--muted);
  cursor:pointer;display:grid;place-items:center;transition:.2s}
.calc__icbtn:hover{color:var(--blue);background:#eef3ff}
.calc__row{background:var(--surface-2);border:1px solid var(--line-2);border-radius:var(--r-md);padding:14px 16px;transition:border-color .2s}
.calc__row:focus-within{border-color:var(--blue);box-shadow:var(--ring)}
.calc__rowtop{display:flex;justify-content:space-between;font-size:13.5px;color:var(--muted);margin-bottom:8px}
.calc__bal{font-weight:600}
.calc__field{display:flex;align-items:center;gap:12px}
.calc__input{flex:1;min-width:0;border:none;background:transparent;font-family:inherit;font-weight:800;
  font-size:30px;color:var(--ink);letter-spacing:-.01em}
.calc__input:focus{outline:none}
.cur{display:inline-flex;align-items:center;gap:8px;background:var(--surface);border:1px solid var(--line);
  border-radius:12px;padding:8px 12px;font-weight:800;font-size:15px;color:var(--ink);cursor:pointer;transition:.2s;flex:none}
.cur:hover{border-color:var(--blue)}
.cur__ic{width:24px;height:24px;border-radius:50%;display:grid;place-items:center;color:#fff;font-size:14px;font-weight:700}
.cur__ic--uah{background:linear-gradient(135deg,#4a90e2,#3570c4)}
.cur__ic--usdt{background:var(--usdt)}
.cur__ic--btc{background:var(--btc)} .cur__ic--eth{background:var(--eth)}
.calc__approx{margin-top:8px;font-size:13.5px;color:var(--muted)}
.calc__approx .up{color:var(--green);font-weight:700}

.calc__swap{display:block;margin:-13px auto;position:relative;z-index:2;width:42px;height:42px;border-radius:13px;
  background:var(--surface);border:1px solid var(--line);color:var(--blue);cursor:pointer;display:grid;place-items:center;
  box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .2s}
.calc__swap:hover{transform:rotate(180deg);box-shadow:var(--shadow)}

.calc__rate{display:flex;justify-content:space-between;align-items:center;margin-top:16px;padding:13px 16px;
  background:var(--surface-2);border-radius:var(--r-md);font-weight:700;font-size:14px;color:var(--ink-2)}
.calc__timer{display:inline-flex;align-items:center;gap:6px;color:var(--muted);font-variant-numeric:tabular-nums}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:30px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px 26px;box-shadow:var(--shadow-sm)}
.stat{display:flex;align-items:center;gap:13px}
.stat__ic{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;flex:none}
.stat__ic--blue{background:#e8f0ff;color:var(--blue)}
.stat__ic--indigo{background:#ecedfe;color:var(--indigo)}
.stat__ic--amber{background:#fff3e0;color:var(--amber)}
.stat__ic--green{background:var(--green-bg);color:var(--green)}
.stat b{display:block;font-size:23px;font-weight:800;letter-spacing:-.02em;line-height:1.1}
.stat small{font-size:13px;color:var(--muted)}

/* ---------- sections ---------- */
.section{padding:40px 0}
.feat__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feat{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--shadow-sm);
  transition:transform .2s,box-shadow .2s}
.feat:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.feat__ic{width:58px;height:58px;border-radius:16px;display:grid;place-items:center;color:#fff;margin-bottom:16px}
.feat__ic--blue{background:linear-gradient(135deg,#3b82f6,#2563eb)}
.feat__ic--indigo{background:linear-gradient(135deg,#6366f1,#4f46e5)}
.feat__ic--amber{background:linear-gradient(135deg,#fbbf24,#f59e0b)}
.feat h3{font-size:20px;font-weight:800;margin-bottom:7px}
.feat p{color:var(--muted);font-size:15px}

/* ---------- split: pairs + how ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;box-shadow:var(--shadow-sm);min-width:0}
.panel__head{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}
.panel__head h2{font-size:21px;font-weight:800}
.panel__sub{color:var(--muted);font-size:14px;margin-bottom:18px}
.link{color:var(--blue);font-weight:700;font-size:14px}
.link:hover{text-decoration:underline}

.pairs{list-style:none;margin-top:12px}
.pair{display:grid;grid-template-columns:auto 1fr auto auto 80px;align-items:center;gap:14px;padding:14px 8px;border-top:1px solid var(--line-2)}
.pair:first-child{border-top:none}
.pair__coins{display:inline-flex;align-items:center;gap:5px;color:var(--muted)}
.coin{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;color:#fff;font-size:15px;font-weight:700;flex:none}
.coin--usdt{background:var(--usdt)} .coin--btc{background:var(--btc)} .coin--eth{background:#627eea} .coin--uah{background:#3570c4}
.pair__arr{color:var(--muted-2)}
.pair__name{font-weight:700;font-size:15px}
.pair__name small{color:var(--muted);font-weight:600}
.pair__price{font-weight:800;font-variant-numeric:tabular-nums;font-size:15px}
.pair__chg{font-weight:700;font-size:13.5px;font-variant-numeric:tabular-nums}
.pair__chg.up{color:var(--green)} .pair__chg.down{color:var(--red)}
.spark-line{width:80px;height:28px}

.steps{list-style:none;margin-top:8px;display:flex;flex-direction:column;gap:6px}
.step{display:flex;gap:16px;padding:14px 0;align-items:flex-start;position:relative}
.step:not(:last-child)::before{content:"";position:absolute;left:18px;top:46px;bottom:-6px;width:2px;
  background:repeating-linear-gradient(var(--line) 0 4px,transparent 4px 9px)}
.step__n{width:38px;height:38px;border-radius:12px;background:#e8f0ff;color:var(--blue);font-weight:800;
  display:grid;place-items:center;flex:none;font-size:16px;z-index:1}
.step b{font-size:16px;display:block;margin-bottom:2px}
.step p{color:var(--muted);font-size:14.5px}

/* ---------- footer ---------- */
.footer{margin-top:30px;background:var(--surface);border-top:1px solid var(--line)}
.footer__inner{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;padding:48px 28px 32px}
.footer__brand p{color:var(--muted);font-size:14.5px;margin-top:12px;max-width:260px}
.footer__col h4{font-size:14px;font-weight:800;margin-bottom:14px}
.footer__col a{display:block;color:var(--muted);font-size:14.5px;padding:5px 0;transition:color .2s}
.footer__col a:hover{color:var(--blue)}
.footer__bottom{display:flex;justify-content:space-between;align-items:center;padding:20px 28px;border-top:1px solid var(--line);
  color:var(--muted);font-size:13.5px}
.footer__bc b{color:var(--blue-ink)}

/* ---------- chat widget ---------- */
.chat{position:fixed;right:24px;bottom:24px;z-index:80;display:flex;flex-direction:column;align-items:flex-end;gap:12px}
.chat__fab{position:relative;width:60px;height:60px;border-radius:50%;border:none;cursor:pointer;
  background:linear-gradient(135deg,#3b82f6,#1d4ed8);color:#fff;display:grid;place-items:center;
  box-shadow:0 12px 30px rgba(37,99,235,.42);transition:transform .2s}
.chat__fab:hover{transform:translateY(-2px) scale(1.04)}
.chat__fab .chat__ic-close{display:none}
.chat.is-open .chat__ic-open{display:none}
.chat.is-open .chat__ic-close{display:block}
.chat__ping{position:absolute;inset:0;border-radius:50%;background:#3b82f6;opacity:.55;z-index:-1;animation:ping 1.9s cubic-bezier(0,0,.2,1) infinite}
.chat.is-open .chat__ping,.chat.is-seen .chat__ping{display:none}

.chat__tip{max-width:230px;background:var(--surface);color:var(--ink);border:1px solid var(--line);
  border-radius:16px 16px 4px 16px;padding:11px 15px;font-size:14px;font-weight:600;box-shadow:var(--shadow);
  opacity:0;transform:translateY(8px) scale(.95);pointer-events:none;transition:.25s;transform-origin:bottom right}
.chat__tip.show{opacity:1;transform:none}

.chat__panel{width:330px;max-width:calc(100vw - 36px);background:var(--surface);border:1px solid var(--line);
  border-radius:20px;box-shadow:var(--shadow-lg);overflow:hidden;
  opacity:0;transform:translateY(16px) scale(.96);pointer-events:none;transform-origin:bottom right;transition:.24s}
.chat.is-open .chat__panel{opacity:1;transform:none;pointer-events:auto}
.chat__head{display:flex;align-items:center;gap:11px;padding:16px 16px 14px;
  background:linear-gradient(135deg,#2563eb,#1d4ed8);color:#fff}
.chat__avatar{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.18);display:grid;place-items:center;font-weight:800;font-size:17px;flex:none}
.chat__who{display:flex;flex-direction:column;line-height:1.3}
.chat__who b{font-size:15px}
.chat__who span{font-size:12px;color:#dbe4ff;display:flex;align-items:center;gap:6px}
.chat__dot{width:7px;height:7px;border-radius:50%;background:#4ade80;display:inline-block;box-shadow:0 0 0 0 rgba(74,222,128,.7);animation:pulse 2s infinite}
.chat__x{margin-left:auto;background:transparent;border:none;color:#fff;opacity:.85;cursor:pointer;display:grid;place-items:center}
.chat__x:hover{opacity:1}
.chat__body{padding:18px 16px}
.chat__bubble{background:var(--surface-2);border-radius:4px 16px 16px 16px;padding:12px 14px;font-size:14px;color:var(--ink-2);line-height:1.5}
.chat__actions{display:flex;gap:10px;padding:0 16px 16px}
.chat__act{flex:1;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px;border-radius:12px;
  font-weight:700;font-size:14px;border:1.5px solid var(--line);color:var(--ink);transition:.2s}
.chat__act:hover{border-color:var(--blue);color:var(--blue)}
.chat__act--tg{background:#2aabee;border-color:#2aabee;color:#fff}
.chat__act--tg:hover{background:#1d96d4;border-color:#1d96d4;color:#fff}
@media (max-width:520px){.chat{right:16px;bottom:16px}}

/* ---------- animations ---------- */
@keyframes ping{75%,100%{transform:scale(1.7);opacity:0}}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(74,222,128,.6)}70%{box-shadow:0 0 0 7px rgba(74,222,128,0)}100%{box-shadow:0 0 0 0 rgba(74,222,128,0)}}
@keyframes rise{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:none}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}
@keyframes twinkle{0%,100%{opacity:.35;transform:scale(.82)}50%{opacity:1;transform:scale(1.12)}}
@media (prefers-reduced-motion:reduce){*{animation:none!important}}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .hero__grid{grid-template-columns:1fr 1fr;grid-template-areas:"copy calc" "art calc"}
  .hero__art{align-self:start}
}
@media (max-width:820px){
  .hero__grid{grid-template-columns:1fr;grid-template-areas:"copy" "calc" "art"}
  .hero__art{min-height:240px}
  .nav__menu{display:none}
  .split{grid-template-columns:1fr}
  .footer__inner{grid-template-columns:1fr 1fr}
}
/* первый экран = nav + hero + метрики; плашки фич уходят под фолд */
@media (min-width:821px){
  .hero{display:flex;flex-direction:column;justify-content:center;min-height:calc(100vh - 78px)}
  .hero .stats{margin-top:38px}
  .hero__cta{flex-wrap:nowrap}
  .hero__trust{flex-wrap:nowrap}
  /* фикс-ширины, чтобы при смене языка ничего не прыгало */
  .btn--wallet{width:224px;justify-content:center}
  .hero__cta .btn{width:212px;justify-content:center}
}

@media (max-width:680px){
  .container{padding:0 16px}
  .nav__inner{gap:12px}
  .hero__title .t-line{white-space:normal}
  .stats{grid-template-columns:1fr 1fr;gap:16px 14px}
  .feat__grid{grid-template-columns:1fr}
  .hero__title{font-size:clamp(30px,8vw,40px)}
  .hero__cta{width:100%}
  .hero__cta .btn{flex:1 1 auto}
  .footer__inner{grid-template-columns:1fr 1fr}
  .footer__bottom{flex-direction:column;gap:8px;text-align:center}
}
@media (max-width:600px){
  .btn--wallet{display:none}            /* на мобиле есть CTA «Начать обмен» */
  .nav__inner{gap:10px}
  .lang__btn{padding:6px 8px;font-size:12px}
}
@media (max-width:520px){
  .logo{font-size:22px}
  .footer__inner{grid-template-columns:1fr}
  .calc__input{font-size:27px}
  .hero__trust{gap:10px 16px}
  .pair{grid-template-columns:auto 1fr auto auto;gap:10px}
  .pair .spark-line{display:none}
  .pair__price{font-size:14px}
}