:root{--navy:#101d35;--navy2:#18345f;--gold:#d8ad3e;--gold2:#efd47e;--ink:#17223a;--muted:#627087;--line:#e1e7ef;--soft:#f5f7fb;--ok:#1f8a5b;--err:#b3261e}
*{box-sizing:border-box}body{margin:0;background:var(--soft);color:var(--ink);font-family:"Segoe UI",Tahoma,sans-serif;line-height:1.6}
header{background:linear-gradient(135deg,var(--navy),var(--navy2));color:#fff;padding:26px 16px 70px}
.wrap{max-width:940px;margin:0 auto}.top{display:flex;justify-content:space-between;align-items:center;gap:12px}
.brand{font-weight:800;letter-spacing:1.6px;font-size:12px;color:var(--gold2)}.lang{background:transparent;border:1px solid rgba(255,255,255,.35);color:#fff;border-radius:999px;padding:5px 12px;cursor:pointer;font:inherit;font-size:13px}
h1{font-size:28px;line-height:1.25;margin:14px 0 4px}header p{margin:0;color:#bdcbe0}
main{margin-top:-46px;padding:0 16px 40px}.card{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 16px 40px rgba(25,44,80,.08);padding:26px}
.plans{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin-bottom:22px}
.plan{border:1.5px solid var(--line);border-radius:12px;padding:14px;cursor:pointer;background:#fff;text-align:left;font:inherit;color:inherit;transition:border-color .15s,box-shadow .15s}
.plan:hover{border-color:#c9d3e2}.plan[aria-pressed=true]{border-color:var(--gold);box-shadow:0 0 0 3px rgba(216,173,62,.18)}
.plan b{display:block;font-size:13px;letter-spacing:1px}.plan strong{display:block;font-size:22px;margin:4px 0 0}.plan small{color:var(--muted);font-size:12px}
label{display:block;font-size:13px;font-weight:600;margin:14px 0 5px}input[type=text],input[type=email],input[type=number]{width:100%;padding:11px 12px;border:1px solid #cfd8e5;border-radius:10px;font:inherit;font-size:15px}
input:focus{outline:2px solid var(--gold);outline-offset:1px}.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.terms{display:flex;gap:10px;align-items:flex-start;font-size:13px;margin:18px 0 6px;font-weight:400}.terms input{margin-top:4px}
.summary{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);margin-top:18px;padding-top:16px;gap:12px;flex-wrap:wrap}
.total{font-size:26px;font-weight:800}.total small{display:block;font-size:12px;color:var(--muted);font-weight:400}
button.pay{background:var(--navy);color:#fff;border:0;border-radius:10px;padding:13px 24px;font:inherit;font-weight:700;font-size:15px;cursor:pointer;min-width:200px}
button.pay:disabled{opacity:.55;cursor:not-allowed}.methods{font-size:12px;color:var(--muted);margin-top:8px}
.msg{margin-top:14px;padding:11px 13px;border-radius:10px;font-size:14px;display:none}.msg.show{display:block}.msg.err{background:#fdecea;color:var(--err)}.msg.info{background:#fff8df;color:#6b5310}
.hidden{display:none}.keybox{font-family:Consolas,monospace;font-size:18px;letter-spacing:1px;background:var(--soft);border:1px dashed #b9c5d6;border-radius:10px;padding:14px;word-break:break-all;margin:6px 0}
.copy{background:#fff;border:1px solid #cfd8e5;border-radius:8px;padding:7px 12px;cursor:pointer;font:inherit;font-size:13px}
dl{display:grid;grid-template-columns:max-content 1fr;gap:6px 16px;font-size:14px}dt{color:var(--muted)}dd{margin:0;font-weight:600}
.status-ok{color:var(--ok)}ol{padding-left:20px;font-size:14px}footer{text-align:center;color:var(--muted);font-size:12px;padding:0 16px 30px}footer a{color:inherit}
@media (max-width:560px){.row{grid-template-columns:1fr}h1{font-size:23px}.card{padding:18px}button.pay{width:100%}}