:root{
  --ink:#1c2a39;--ink2:#3a4a5b;--muted:#6a7a8b;--faint:#94a3b3;--line:#dfe6ee;--line2:#e9eef4;
  --bg:#f4f7fb;--panel:#fff;--accent:#344d67;--accent2:#22374c;--focus:#8fb2d6;
  --ok:#23704b;--okbg:#e6f3ec;--warn:#8a5a0c;--warnbg:#fbf1dd;--bad:#b3261e;--badbg:#fbe9e7;
  --r:10px;--display:"Manrope",system-ui,sans-serif;--body:"Golos Text",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font:15px/1.5 var(--body);color:var(--ink);background:var(--panel);-webkit-font-smoothing:antialiased}
a{color:var(--accent)}
button,input,textarea,select{font:inherit;color:inherit}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--accent2);font:700 15px/1 var(--display);letter-spacing:-.03em}
.logo svg{width:30px;height:32px}
.logo sup{font-size:11px;margin-left:1px}

/* ---------- checkout ---------- */
.co{display:grid;grid-template-columns:1fr 1fr;min-height:100vh}
.co-summary{background:var(--bg);border-right:1px solid var(--line2);display:flex;justify-content:flex-end;padding:56px 64px 48px}
.co-form{display:flex;justify-content:flex-start;padding:56px 64px 48px}
.co-summary>.in{width:100%;max-width:420px;position:sticky;top:48px;align-self:flex-start}
.co-form>.in{width:100%;max-width:460px}
.topline{display:flex;align-items:center;gap:14px;margin-bottom:36px}
.back{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:50%;text-decoration:none;color:var(--muted);font-size:18px;transition:background .15s}
.back:hover{background:#e7edf4;color:var(--ink)}
.eyebrow{font:600 13px/1.4 var(--body);color:var(--muted);margin:0 0 6px}
.product{font:600 16px/1.4 var(--body);color:var(--ink2);margin:0 0 4px}
.big{font:700 40px/1.1 var(--display);letter-spacing:-.03em;margin:0}
.per{color:var(--muted);margin:6px 0 28px;font-size:14px}
.lines{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.lines li{display:flex;justify-content:space-between;gap:16px;padding:14px 0;border-bottom:1px solid var(--line);font-size:14px}
.lines li span:first-child{color:var(--ink2)}
.lines li small{display:block;color:var(--muted);font-size:12.5px;margin-top:2px}
.lines li b{font-weight:600;white-space:nowrap}
.lines li.gift b{color:var(--ok)}
.total{display:flex;justify-content:space-between;align-items:baseline;padding:16px 0 4px;font-weight:600}
.total b{font:700 18px/1 var(--display)}
.vat{color:var(--muted);font-size:13px;margin:2px 0 28px;text-align:right}
.assure{list-style:none;margin:0;padding:0;display:grid;gap:12px;font-size:13.5px;color:var(--ink2)}
.assure li{display:grid;grid-template-columns:20px 1fr;gap:10px;align-items:start}
.assure svg{width:18px;height:18px;margin-top:2px;color:var(--accent)}

h1.ttl{font:700 22px/1.25 var(--display);letter-spacing:-.02em;margin:0 0 20px}
h2.sub{font:700 16px/1.3 var(--display);margin:30px 0 14px;letter-spacing:-.01em}
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.plan{position:relative;display:block;border:1px solid var(--line);border-radius:var(--r);padding:12px 12px 11px;cursor:pointer;transition:border-color .15s,box-shadow .15s,background .15s}
.plan input{position:absolute;opacity:0;pointer-events:none}
.plan .pn{display:block;font-weight:600;font-size:14px}
.plan .pp{display:block;font:700 17px/1.2 var(--display);margin-top:6px}
.plan .pd{display:block;color:var(--muted);font-size:12px;line-height:1.35;margin-top:3px}
.plan:hover{border-color:#b9c7d6}
.plan:has(input:checked){border-color:var(--accent);box-shadow:0 0 0 1px var(--accent);background:#f8fafd}
.plan:has(input:focus-visible){box-shadow:0 0 0 3px var(--focus)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:18px}
.field{margin-top:14px}
.row2 .field{margin-top:0}
.field>label,.lbl{display:block;font-size:13.5px;font-weight:500;color:var(--ink2);margin-bottom:6px}
.opt{color:var(--faint);font-weight:400}
.inp,.field input[type=text],.field input[type=email],.field input[type=password],.field input:not([type]),.field textarea{width:100%;border:1px solid var(--line);border-radius:8px;padding:11px 12px;background:#fff;box-shadow:0 1px 1px rgba(16,24,40,.04);transition:border-color .15s,box-shadow .15s;outline:none}
.field textarea{resize:vertical;min-height:62px}
.field input:focus,.field textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(52,77,103,.15)}
.field.bad input{border-color:var(--bad);box-shadow:0 0 0 3px rgba(179,38,30,.1)}
.field .err{display:none;color:var(--bad);font-size:12.5px;margin-top:5px}
.field.bad .err{display:block}
.hint{display:block;color:var(--muted);font-size:12.5px;margin-top:6px;line-height:1.4}
.stepper{display:flex;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:#fff;box-shadow:0 1px 1px rgba(16,24,40,.04)}
.stepper button{width:42px;border:0;background:#f7f9fb;font-size:18px;cursor:pointer;color:var(--ink2)}
.stepper button:hover{background:#eef2f7}
.stepper input{flex:1;min-width:0;border:0;text-align:center;font-weight:600;font-size:15px;padding:10px 4px;outline:none;-moz-appearance:textfield}
.stepper input::-webkit-outer-spin-button,.stepper input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.seg{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:8px;padding:3px;gap:3px;background:#f7f9fb}
.seg label{position:relative;cursor:pointer}
.seg input{position:absolute;opacity:0}
.seg span{display:block;text-align:center;padding:8px 6px;border-radius:6px;font-size:13.5px;font-weight:500;color:var(--ink2);line-height:1.25}
.seg span em{display:block;font-style:normal;font-size:11.5px;color:var(--ok);font-weight:600}
.seg input:checked+span{background:#fff;box-shadow:0 1px 2px rgba(16,24,40,.12),0 0 0 1px var(--line);color:var(--ink)}
.seg input:focus-visible+span{box-shadow:0 0 0 3px var(--focus)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.paybtn{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;margin-top:24px;border:0;border-radius:8px;background:var(--accent2);color:#fff;font:600 16px/1 var(--body);padding:16px 18px;cursor:pointer;box-shadow:0 1px 2px rgba(16,24,40,.2);transition:background .15s,transform .05s}
.paybtn:hover{background:#18293a}
.paybtn:active{transform:translateY(1px)}
.paybtn[disabled]{opacity:.7;cursor:progress}
.paybtn svg{width:18px;height:18px}
.spin{width:18px;height:18px;border:2px solid rgba(255,255,255,.35);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite;display:none}
.paybtn.loading .spin{display:block}.paybtn.loading svg{display:none}
@keyframes spin{to{transform:rotate(360deg)}}
.fine{color:var(--muted);font-size:12.5px;line-height:1.5;margin:12px 0 0;text-align:center}
.formerr{background:var(--badbg);color:var(--bad);border-radius:8px;padding:10px 12px;font-size:13.5px;margin-top:14px}
.pay-foot{display:flex;gap:18px;flex-wrap:wrap;align-items:center;color:var(--faint);font-size:12.5px;margin-top:40px}
.pay-foot a{color:var(--muted);text-decoration:none}
.pay-foot a:hover{color:var(--ink)}

/* ---------- invoice page ---------- */
body.inv{background:var(--bg)}
.inv-top{max-width:1040px;margin:0 auto;padding:28px 24px 0;display:flex;justify-content:space-between;align-items:center}
.inv-top .help{color:var(--muted);font-size:13.5px;text-decoration:none}
.inv-wrap{max-width:1040px;margin:0 auto;padding:22px 24px 56px;display:grid;grid-template-columns:1.08fr .92fr;gap:22px;align-items:start}
.card{background:#fff;border:1px solid var(--line2);border-radius:14px;box-shadow:0 1px 2px rgba(16,24,40,.05),0 8px 24px rgba(16,24,40,.04)}
.card .pad{padding:28px}
.card+.card{margin-top:22px}
.head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}
.inv-no{color:var(--muted);font-size:14px;margin:0 0 10px}
.pill{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:5px 10px;font-size:12.5px;font-weight:600;white-space:nowrap}
.pill:before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}
.pill.pending{background:var(--warnbg);color:var(--warn)}
.pill.paid{background:var(--okbg);color:var(--ok)}
.pill.cancelled{background:#eef1f4;color:var(--muted)}
.amount{font:700 44px/1.05 var(--display);letter-spacing:-.035em;margin:0}
.due{color:var(--ink2);margin:8px 0 0;font-size:14.5px}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.btn{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);background:#fff;border-radius:8px;padding:10px 14px;font-size:14px;font-weight:500;text-decoration:none;color:var(--ink);cursor:pointer;box-shadow:0 1px 1px rgba(16,24,40,.04);transition:background .15s,border-color .15s}
.btn:hover{background:#f7f9fb;border-color:#cdd7e2}
.btn.primary{background:var(--accent2);border-color:var(--accent2);color:#fff}
.btn.primary:hover{background:#18293a}
.btn svg{width:16px;height:16px}
.sec-t{font:700 15px/1.3 var(--display);margin:0 0 4px}
.sec-d{color:var(--muted);font-size:13.5px;margin:0 0 14px}
.req{list-style:none;margin:0;padding:0;border:1px solid var(--line2);border-radius:10px;overflow:hidden}
.req li{display:grid;grid-template-columns:132px 1fr 34px;gap:10px;align-items:center;padding:11px 12px 11px 14px;border-bottom:1px solid var(--line2);font-size:14px}
.req li:last-child{border-bottom:0}
.req li:nth-child(even){background:#fbfcfe}
.req .k{color:var(--muted);font-size:13px}
.req .v{font-weight:500;word-break:break-word}
.req .v.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13.5px;letter-spacing:.01em}
.copy{width:30px;height:30px;border:0;border-radius:6px;background:transparent;color:var(--muted);cursor:pointer;display:grid;place-items:center}
.copy:hover{background:#eef2f7;color:var(--ink)}
.copy svg{width:16px;height:16px}
.copy.done{color:var(--ok)}
.steps{margin:0;padding:0;list-style:none;counter-reset:s;display:grid;gap:12px}
.steps li{counter-increment:s;display:grid;grid-template-columns:26px 1fr;gap:10px;font-size:14px;color:var(--ink2)}
.steps li:before{content:counter(s);width:24px;height:24px;border-radius:50%;background:#eef2f7;color:var(--accent2);font-weight:700;font-size:12.5px;display:grid;place-items:center}
.kv{display:grid;grid-template-columns:110px 1fr;gap:8px 12px;font-size:14px;margin:0}
.kv dt{color:var(--muted)}
.kv dd{margin:0}
.items{list-style:none;margin:16px 0 0;padding:0;border-top:1px solid var(--line2)}
.items li{display:flex;justify-content:space-between;gap:14px;padding:12px 0;border-bottom:1px solid var(--line2);font-size:14px}
.items li small{display:block;color:var(--muted);font-size:12.5px;margin-top:2px}
.items li b{white-space:nowrap;font-weight:600}
.sumrow{display:flex;justify-content:space-between;padding:14px 0 2px;font-weight:600}
.sumrow b{font:700 17px/1 var(--display)}
.vatrow{display:flex;justify-content:space-between;color:var(--muted);font-size:13px}
.supplier{font-size:12.5px;color:var(--muted);line-height:1.55;margin:0}
.paidbox{background:var(--okbg);color:var(--ok);border-radius:10px;padding:12px 14px;font-size:14px;margin-top:18px}
.cancelbox{background:#eef1f4;color:var(--ink2);border-radius:10px;padding:12px 14px;font-size:14px;margin-top:18px}
.toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%) translateY(20px);background:var(--ink);color:#fff;border-radius:999px;padding:10px 16px;font-size:14px;opacity:0;transition:opacity .2s,transform .2s;pointer-events:none;z-index:9}
.toast.on{opacity:1;transform:translateX(-50%) translateY(0)}
.inv-foot{max-width:1040px;margin:0 auto;padding:0 24px 40px;color:var(--faint);font-size:12.5px;display:flex;gap:18px;flex-wrap:wrap}
.inv-foot a{color:var(--muted);text-decoration:none}

/* ---------- admin ---------- */
body.adm{background:var(--bg)}
.adm-wrap{max-width:1180px;margin:0 auto;padding:28px 24px 60px}
.adm table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line2);border-radius:12px;overflow:hidden;font-size:13.5px}
.adm th,.adm td{padding:10px 12px;border-bottom:1px solid var(--line2);text-align:left;vertical-align:middle}
.adm th{background:#f7f9fb;color:var(--muted);font-weight:500;font-size:12.5px}
.adm td.r{text-align:right;white-space:nowrap}
.adm form{display:inline}
.adm .mini{padding:6px 10px;font-size:12.5px}
.adm .stats{display:flex;gap:14px;margin:16px 0 18px;flex-wrap:wrap}
.adm .stat{background:#fff;border:1px solid var(--line2);border-radius:12px;padding:14px 18px;min-width:200px}
.adm .stat b{display:block;font:700 22px/1.2 var(--display);margin-top:4px}

@media(max-width:900px){
  .co{grid-template-columns:1fr}
  .co-summary{justify-content:center;border-right:0;border-bottom:1px solid var(--line2);padding:24px 20px}
  .co-summary>.in{position:static;max-width:560px}
  .co-form{justify-content:center;padding:28px 20px 40px}
  .co-form>.in{max-width:560px}
  .topline{margin-bottom:22px}
  .big{font-size:34px}
  .per{margin-bottom:18px}
  .inv-wrap{grid-template-columns:1fr;padding:16px 16px 40px;gap:16px}
  .inv-top{padding:20px 16px 0}
  .card .pad{padding:22px 18px}
  .amount{font-size:38px}
  .inv-foot{padding:0 16px 32px}
}
@media(max-width:560px){
  .plans{grid-template-columns:1fr}
  .plan{display:grid;grid-template-columns:1fr auto;align-items:baseline}
  .plan .pp{margin-top:0;text-align:right}
  .plan .pd{grid-column:1/-1}
  .row2{grid-template-columns:1fr}
  .row2 .field+.field{margin-top:14px}
  .req li{grid-template-columns:96px 1fr 30px;padding:10px 8px 10px 12px;font-size:13.5px}
  .kv{grid-template-columns:96px 1fr}
}
@media print{.actions,.copy,.inv-top .help,.toast{display:none}body.inv{background:#fff}.card{box-shadow:none}}