/* ===== Обменник: сине-белая тема ===== */
:root{
  --blue:#1f5eff; --blue-2:#3b82ff; --blue-d:#1446c9; --navy:#0b1f4d;
  --sky:#eaf1ff; --sky-2:#f4f8ff; --line:#e1e9f8; --text:#0b1f4d; --muted:#6b7a99;
  --ok:#12b76a; --warn:#f79009; --bad:#f04438;
  --shadow:0 20px 60px -20px rgba(31,94,255,.28), 0 4px 16px rgba(11,31,77,.06);
  --r:20px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--text);background:#fff;
  font:16px/1.55 "Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--blue);text-decoration:none}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px}
.muted{color:var(--muted);font-size:14px}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;word-break:break-all}

/* ---------- фон ---------- */
.bg{position:relative;overflow:hidden;background:linear-gradient(180deg,#f2f7ff 0%,#fff 70%)}
.bg:before,.bg:after{content:"";position:absolute;border-radius:50%;filter:blur(70px);z-index:0;pointer-events:none}
.bg:before{width:520px;height:520px;background:#bcd3ff;top:-180px;right:-120px;opacity:.7}
.bg:after{width:420px;height:420px;background:#d9e6ff;bottom:-160px;left:-140px;opacity:.8}
.bg>*{position:relative;z-index:1}

/* ---------- шапка ---------- */
.top{padding:18px 0}
.top .wrap{display:flex;align-items:center;gap:28px}
.logo{white-space:nowrap;display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--navy);letter-spacing:-.02em}
.logo i{width:36px;height:36px;border-radius:11px;display:grid;place-items:center;font-style:normal;color:#fff;font-size:17px;
  background:linear-gradient(135deg,var(--blue-2),var(--blue-d));box-shadow:0 8px 20px -6px rgba(31,94,255,.6)}
.menu{display:flex;gap:24px;margin-left:auto}
.menu a{color:var(--navy);font-weight:500;font-size:15px;opacity:.8}
.menu a:hover{opacity:1;color:var(--blue)}
.pill-btn{padding:9px 16px;border-radius:999px;background:#fff;border:1px solid var(--line);font-weight:600;font-size:14px;color:var(--navy)}
.pill-btn:hover{border-color:var(--blue);color:var(--blue)}

/* ---------- герой ---------- */
.hero{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;padding:40px 0 90px}
.tag{display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);
  font-size:13px;font-weight:600;color:var(--blue);box-shadow:0 4px 14px rgba(31,94,255,.08)}
.tag b{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(18,183,106,.15)}
.hero h1{font-size:54px;line-height:1.06;letter-spacing:-.035em;margin:20px 0 18px;font-weight:800}
.hero h1 span{background:linear-gradient(90deg,var(--blue),#5b9bff);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:18px;color:var(--muted);max-width:480px;margin:0 0 30px}
.stats{display:grid;grid-template-columns:repeat(2,minmax(0,220px));gap:12px}
.stat{background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px 18px;min-width:140px}
.stat b{display:block;font-size:22px;letter-spacing:-.02em}
.stat span{font-size:13px;color:var(--muted)}

/* ---------- карточка обмена ---------- */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px;box-shadow:var(--shadow)}
.ex h2{margin:0 0 4px;font-size:20px;letter-spacing:-.02em}
.rate{display:flex;justify-content:space-between;align-items:center;font-size:14px;color:var(--muted);margin-bottom:18px}
.rate b{color:var(--navy)}
.live{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;color:var(--ok);background:#ecfdf3;padding:4px 10px;border-radius:999px}
.field{position:relative;background:var(--sky-2);border:1.5px solid var(--line);border-radius:16px;padding:12px 16px;transition:.15s}
.field:focus-within{border-color:var(--blue);background:#fff;box-shadow:0 0 0 4px rgba(31,94,255,.1)}
.field input.big:focus{box-shadow:none;border:0}
.field small{display:block;font-size:12px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.field .row{display:flex;align-items:center;gap:10px}
.field input.big{flex:1;border:0;background:transparent;font-size:28px;font-weight:700;color:var(--navy);padding:4px 0;outline:none;min-width:0;letter-spacing:-.02em}
.cur{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 12px 6px 6px;font-weight:700;font-size:15px;white-space:nowrap}
.cur i{width:26px;height:26px;border-radius:50%;display:grid;place-items:center;color:#fff;font-style:normal;font-size:13px;font-weight:800}
.cur .usdt{background:#26a17b}.cur .rub{background:var(--blue)}
.swap{display:grid;place-items:center;height:14px;position:relative;z-index:2}
.swap span{width:38px;height:38px;border-radius:12px;background:#fff;border:1.5px solid var(--line);display:grid;place-items:center;color:var(--blue);font-size:18px;box-shadow:0 4px 12px rgba(11,31,77,.06)}
.limits{font-size:13px;color:var(--muted);margin:8px 2px 0}

.label{display:block;font-size:13px;font-weight:600;color:var(--navy);margin:18px 0 8px}
.nets{display:flex;gap:8px;flex-wrap:wrap}
.nets input{display:none}
.nets label{flex:1;min-width:90px;text-align:center;padding:10px 8px;border-radius:12px;border:1.5px solid var(--line);cursor:pointer;font-weight:700;font-size:14px;background:#fff;transition:.15s}
.nets label small{display:block;font-weight:500;font-size:11px;color:var(--muted)}
.nets input:checked+label{border-color:var(--blue);background:var(--sky);color:var(--blue);box-shadow:0 0 0 3px rgba(31,94,255,.08)}

input,select,textarea{display:block;width:100%;padding:13px 14px;border-radius:12px;border:1.5px solid var(--line);background:#fff;color:var(--navy);font:inherit;font-size:15px;transition:.15s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px rgba(31,94,255,.1)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.grid2 .full{grid-column:1/-1}
.ex input:not(.big){margin:0}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:14px;padding:14px 22px;font:inherit;font-weight:700;font-size:16px;cursor:pointer;color:#fff;
  background:linear-gradient(135deg,var(--blue-2),var(--blue-d));box-shadow:0 12px 28px -10px rgba(31,94,255,.7);transition:.15s}
.btn:hover{transform:translateY(-1px);box-shadow:0 16px 32px -10px rgba(31,94,255,.8)}
.btn.block{width:100%;margin-top:20px;padding:16px}
.btn.small{padding:8px 14px;font-size:13px;border-radius:10px;box-shadow:none}
.btn.ghost{background:#fff;color:var(--navy);border:1.5px solid var(--line);box-shadow:none}
.btn.ghost:hover{border-color:var(--blue);color:var(--blue)}
.btn.danger{background:#fff;color:var(--bad);border:1.5px solid #fbd5d2;box-shadow:none}
.btn.ok{background:linear-gradient(135deg,#22c55e,#12b76a);box-shadow:0 12px 28px -10px rgba(18,183,106,.6)}
.secure{display:flex;align-items:center;justify-content:center;gap:6px;font-size:12px;color:var(--muted);margin-top:12px}

.flash{background:#fff4e5;border:1px solid #fed7aa;color:#9a4b00;padding:12px 16px;border-radius:14px;margin:0 0 16px;font-size:14px}

/* ---------- секции ---------- */
section.block{padding:80px 0}
.center{text-align:center}
.sec-title{font-size:38px;letter-spacing:-.03em;margin:0 0 10px;font-weight:800}
.sec-sub{color:var(--muted);margin:0 auto 44px;max-width:560px}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px;transition:.2s}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.step .n{width:44px;height:44px;border-radius:14px;background:var(--sky);color:var(--blue);display:grid;place-items:center;font-weight:800;font-size:18px;margin-bottom:16px}
.step h3{margin:0 0 6px;font-size:17px}
.step p{margin:0;color:var(--muted);font-size:14px}
.band{background:linear-gradient(135deg,#1f5eff,#1446c9);color:#fff;border-radius:28px;padding:44px;display:grid;grid-template-columns:1fr 1fr;gap:36px;position:relative;overflow:hidden}
.band:after{content:"";position:absolute;width:360px;height:360px;border-radius:50%;background:rgba(255,255,255,.08);right:-90px;top:-120px}
.band h2{font-size:30px;margin:0 0 10px;letter-spacing:-.02em}
.band p{opacity:.85;margin:0;white-space:pre-line}
.band ul{list-style:none;margin:0;padding:0;display:grid;gap:12px;position:relative;z-index:1}
.band li{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);border-radius:14px;padding:14px 16px;font-weight:500}
.band li:before{content:"✓";display:inline-grid;place-items:center;width:22px;height:22px;border-radius:50%;background:#fff;color:var(--blue);font-weight:800;font-size:12px;margin-right:10px}
footer{border-top:1px solid var(--line);padding:28px 0;color:var(--muted);font-size:14px}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* ---------- страница заявки ---------- */
.order-wrap{max-width:720px;margin:20px auto 80px}
.order-head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:20px}
.order-head h1{margin:0;font-size:28px;letter-spacing:-.02em}
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;font-size:13px;font-weight:600;background:var(--sky);color:var(--blue)}
.badge:before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}
.st-waiting{background:#fff6e5;color:#c26a00}
.st-paid{background:var(--sky);color:var(--blue)}
.st-done{background:#ecfdf3;color:#0a8a4f}
.st-cancelled,.st-expired{background:#fef0ef;color:#c4321f}
.tracker{display:flex;margin:6px 0 24px}
.tracker div{flex:1;text-align:center;font-size:13px;color:var(--muted);position:relative;padding-top:34px}
.tracker div:before{content:"";position:absolute;top:8px;left:50%;transform:translateX(-50%);width:20px;height:20px;border-radius:50%;background:#fff;border:2px solid var(--line);z-index:1}
.tracker div:after{content:"";position:absolute;top:17px;left:-50%;width:100%;height:2px;background:var(--line)}
.tracker div:first-child:after{display:none}
.tracker .on{color:var(--navy);font-weight:600}
.tracker .on:before{background:var(--blue);border-color:var(--blue);box-shadow:0 0 0 5px rgba(31,94,255,.15)}
.tracker .on:after{background:var(--blue)}
.pay{display:flex;gap:22px;align-items:center;background:var(--sky-2);border:1px solid var(--line);border-radius:18px;padding:18px}
.qr{flex:0 0 180px;width:180px;height:180px;background:#fff;border-radius:14px;padding:10px;border:1px solid var(--line);display:grid;place-items:center}
.pay>div:last-child{flex:1;min-width:0}
.qr img,.qr canvas{width:100%!important;height:auto!important}
.copy{display:flex;justify-content:space-between;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 10px 10px 14px;margin:6px 0 14px}
.copy span{font-weight:700;font-size:18px;word-break:break-all}
.copy.mono span{font-size:13px;font-weight:600}
.copy button{flex-shrink:0}
.timer{display:inline-flex;align-items:center;gap:8px;font-weight:700;color:var(--blue);background:#fff;border:1px solid var(--line);padding:6px 12px;border-radius:999px;font-size:14px}
.warn{background:#fff6e5;color:#9a4b00;border-radius:12px;padding:12px 14px;font-size:14px;margin:16px 0 0}
.kv{width:100%;border-collapse:collapse;margin:18px 0 6px}
.kv td{padding:12px 0;border-bottom:1px solid var(--line);vertical-align:top;font-size:15px}
.kv tr:last-child td{border-bottom:0}
.kv td:first-child{color:var(--muted);width:40%;padding-right:12px}
.big-ok{text-align:center;padding:10px 0 6px}
.big-ok i{width:64px;height:64px;border-radius:50%;display:inline-grid;place-items:center;font-style:normal;font-size:30px;color:#fff;background:linear-gradient(135deg,#22c55e,#12b76a);margin-bottom:10px}

/* ---------- админка ---------- */
body.admin{background:var(--sky-2)}
.admin .top{background:#fff;border-bottom:1px solid var(--line);margin-bottom:28px;padding:14px 0}
.admin .nav a.nl{color:var(--muted);font-weight:600;font-size:15px;padding:8px 12px;border-radius:10px}
.admin .nav a.nl:hover,.admin .nav a.nl.on{color:var(--blue);background:var(--sky)}
.admin .nav{gap:6px}
.admin .nav .logo{margin-right:18px}
.right{margin-left:auto}
form.inline{display:inline}
.page-h{display:flex;justify-content:space-between;align-items:end;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.page-h h1{margin:0;font-size:28px;letter-spacing:-.02em}
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:20px}
.kpi{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px}
.kpi span{font-size:13px;color:var(--muted);font-weight:500}
.kpi b{display:block;font-size:26px;letter-spacing:-.02em;margin-top:4px}
.kpi.hot{background:linear-gradient(135deg,var(--blue-2),var(--blue-d));color:#fff;border:0}
.kpi.hot span{color:rgba(255,255,255,.8)}
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin:0 0 14px;background:#fff;border:1px solid var(--line);padding:6px;border-radius:14px;width:fit-content}
.tabs a{padding:8px 14px;border-radius:10px;color:var(--muted);font-size:14px;font-weight:600}
.tabs a.on{background:var(--blue);color:#fff}
.tabs a em{font-style:normal;opacity:.7;margin-left:4px}
.list{width:100%;border-collapse:separate;border-spacing:0;background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;font-size:14px}
.list th,.list td{padding:14px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
.list tr:last-child td{border-bottom:0}
.list th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.04em;background:#fbfcff}
.list tr[onclick]{cursor:pointer}
.list tr[onclick]:hover td{background:var(--sky-2)}
.nowrap{white-space:nowrap}
.admin .card{box-shadow:none;margin-bottom:20px}
.admin label{display:block;font-size:13px;font-weight:600;color:var(--navy);margin:12px 0}
.admin label input,.admin label select,.admin label textarea{margin-top:6px}
.row3{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;align-items:end}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.admin h3{margin:26px 0 4px;font-size:16px}
.admin h3:first-of-type{margin-top:0}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.login-box{max-width:400px;margin:9vh auto}
.login-box .logo{justify-content:center;margin-bottom:22px}
.empty{text-align:center;color:var(--muted);padding:36px!important}

/* ---------- мобильные ---------- */
@media(max-width:960px){
  .hero{grid-template-columns:1fr;gap:34px;padding:16px 0 60px}
  .hero h1{font-size:40px}
  .steps{grid-template-columns:1fr 1fr}
  .band{grid-template-columns:1fr;padding:30px}
  .kpis{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .menu{display:none}
  .hero h1{font-size:34px}
  .lead{font-size:16px}
  .stat{flex:1;min-width:0;padding:12px}
  .stat b{font-size:18px}
  .card{padding:20px}
  .steps{grid-template-columns:1fr}
  .sec-title{font-size:28px}
  section.block{padding:56px 0}
  .pay{flex-direction:column}
  .pay>div:last-child{width:100%}
  .list{display:block;overflow-x:auto}
  .admin .nav{flex-wrap:wrap}
  .row2{grid-template-columns:1fr}
}

.opcode{display:flex;align-items:center;gap:10px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.04em;flex-wrap:wrap}
.order-head .muted{display:block;margin-bottom:2px}
.search{display:flex;gap:8px;margin:0 0 12px;max-width:520px;align-items:center}
.search input{margin:0;padding:10px 12px}

/* ---------- чат ---------- */
button.pill-btn{cursor:pointer;font:inherit;font-weight:600;font-size:14px}
.chat-fab{position:fixed;right:24px;bottom:24px;width:60px;height:60px;border-radius:50%;border:0;cursor:pointer;z-index:50;
  background:linear-gradient(135deg,var(--blue-2),var(--blue-d));color:#fff;font-size:26px;box-shadow:0 14px 34px -8px rgba(31,94,255,.7);transition:.15s}
.chat-fab:hover{transform:scale(1.06)}
.chat-fab b{position:absolute;top:-2px;right:-2px;min-width:22px;height:22px;border-radius:11px;background:var(--bad);color:#fff;font-size:12px;display:grid;place-items:center;padding:0 6px;border:2px solid #fff}
.chat-box{position:fixed;right:24px;bottom:96px;width:370px;max-width:calc(100vw - 32px);height:520px;max-height:calc(100vh - 130px);z-index:50;
  background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:0 30px 80px -20px rgba(11,31,77,.35);display:flex;flex-direction:column;overflow:hidden}
.chat-box[hidden],.chat-fab b[hidden]{display:none}
.chat-head{display:flex;justify-content:space-between;align-items:center;padding:16px 18px;color:#fff;background:linear-gradient(135deg,var(--blue-2),var(--blue-d))}
.chat-head small{display:block;font-size:12px;opacity:.85}
.chat-head button{background:rgba(255,255,255,.18);border:0;color:#fff;width:32px;height:32px;border-radius:10px;cursor:pointer;font-size:14px}
.chat-msgs{flex:1;overflow-y:auto;padding:16px;background:var(--sky-2);display:flex;flex-direction:column;gap:10px}
.chat-msgs.big{height:56vh;min-height:320px;border-radius:14px;border:1px solid var(--line)}
.msg{max-width:82%;display:flex;flex-direction:column}
.msg p{margin:0;padding:10px 14px;border-radius:16px;white-space:pre-wrap;word-wrap:break-word;font-size:14px;line-height:1.45}
.msg time{font-size:11px;color:var(--muted);margin:3px 6px 0}
.msg.admin{align-self:flex-start}
.msg.admin p{background:#fff;border:1px solid var(--line);border-bottom-left-radius:4px}
.msg.me{align-self:flex-end;align-items:flex-end}
.msg.me p{background:var(--blue);color:#fff;border-bottom-right-radius:4px}
.chat-form{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line);background:#fff;align-items:flex-end}
.chat-form textarea{flex:1;resize:none;margin:0;max-height:120px;font-size:14px}
.chat-form .btn.small{height:46px;width:46px;padding:0;font-size:16px;border-radius:12px}
.admin-chat .chat-form{padding:14px 0 0;border:0}
.nb{display:inline-grid;place-items:center;min-width:20px;height:20px;border-radius:10px;background:var(--bad);color:#fff;font-size:12px;margin-left:6px;padding:0 6px}
@media(max-width:640px){
  .top .pill-btn{font-size:13px;padding:8px 12px;margin-left:auto}
  .top .pill-btn span{display:none}
  .stats{grid-template-columns:1fr 1fr}
  .logo{font-size:17px}
  .chat-fab{right:16px;bottom:16px;width:56px;height:56px}
  .chat-box{right:8px;left:8px;bottom:84px;width:auto;max-width:none;height:calc(100vh - 110px)}
}