:root{
  --bg:#0A0A0A;
  --ink:#F4F4F0;
  --muted:#9AA0A6;
  --line:rgba(205,255,80,.22);
  --lime:#CDFF50;
  --lime-ink:#0A0A0A;
  --card:#101010;
  --err:#FF5C5C;
}
*{margin:0;padding:0;box-sizing:border-box;border-radius:0}
html{-webkit-text-size-adjust:100%}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:'Inter',system-ui,sans-serif;
  line-height:1.55;
  min-height:100vh;
  display:flex;flex-direction:column;
}
.wrap{width:100%;max-width:560px;margin:0 auto;padding:0 20px}
a{color:var(--lime);text-decoration:none}
a:hover{text-decoration:underline}

/* header */
.top{border-bottom:1px solid var(--line);background:var(--bg)}
.top-inner{display:flex;align-items:center;justify-content:space-between;padding-top:16px;padding-bottom:16px}
.brand-mark{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:20px;letter-spacing:.04em;color:var(--ink)}
.brand-mark::after{content:"";display:inline-block;width:8px;height:8px;background:var(--lime);margin-left:6px;vertical-align:2px}
.secure-tag{font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--lime);border:1px solid var(--line);padding:5px 10px}

/* main */
main{flex:1;display:flex;flex-direction:column;justify-content:center;padding-top:40px;padding-bottom:48px}
.gate{width:100%}
.card{
  background:var(--card);
  border:1px solid var(--line);
  padding:32px 24px 28px;
}
@media(min-width:480px){.card{padding:44px 40px 36px}}
.eyebrow{font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--lime);margin-bottom:12px}
h1{font-family:'Space Grotesk',sans-serif;font-size:clamp(28px,6vw,38px);font-weight:700;letter-spacing:-.01em;line-height:1.1;margin-bottom:12px}
.sub{color:var(--muted);font-size:15px;margin-bottom:24px}
.card.ok{text-align:center}
.ok-check{display:inline-flex;color:var(--lime);margin-bottom:18px}

/* product */
.product{display:flex;align-items:center;justify-content:space-between;gap:12px;border:1px solid var(--line);padding:14px 16px;margin-bottom:20px;background:#0d0d0d}
.product-name{font-weight:600;font-size:15px}
.product-price{font-family:'Space Grotesk',sans-serif;font-size:24px;font-weight:700;color:var(--lime);white-space:nowrap}

/* perks */
.perks{list-style:none;margin-bottom:26px;display:grid;gap:10px}
.perks li{display:flex;gap:10px;font-size:14px;color:var(--ink)}
.perks li::before{content:"";flex:0 0 6px;width:6px;height:6px;background:var(--lime);margin-top:7px}

/* form */
.field{display:block;margin-bottom:16px}
.field span{display:block;font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--muted);margin-bottom:6px}
.field input{
  width:100%;background:#0d0d0d;border:1px solid var(--line);color:var(--ink);
  padding:13px 14px;font-size:16px;font-family:inherit;outline:none;transition:border-color .15s;
}
.field input:focus{border-color:var(--lime)}
.pay{
  width:100%;display:flex;align-items:center;justify-content:center;gap:10px;
  background:var(--lime);color:var(--lime-ink);border:0;cursor:pointer;
  padding:16px;font-family:'Space Grotesk',sans-serif;font-size:17px;font-weight:700;letter-spacing:.01em;
}
.pay:hover{filter:brightness(.94)}
.pay:disabled{opacity:.55;cursor:wait}
.pay.solid{text-decoration:none;justify-content:center;margin-top:8px}
.lock{display:inline-flex}
.err{color:var(--err);font-size:13px;margin-top:10px}
.hint{font-size:12px;color:var(--muted);margin-top:12px;text-align:center}

/* aside */
.aside{display:flex;flex-wrap:wrap;gap:10px 18px;justify-content:center;margin-top:24px;border-top:1px solid var(--line);padding-top:18px}
.row{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--muted)}
.row svg{color:var(--lime)}
.row strong{color:var(--ink);font-weight:600}

/* footer */
.foot{border-top:1px solid var(--line);padding:18px 0 30px}
.foot-inner{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12px;color:var(--muted);flex-wrap:wrap}
.cancel-note{text-align:center;margin-top:12px;padding:10px;background:rgba(255,92,92,.08);border:1px solid rgba(255,92,92,.3);color:var(--err);font-size:13px}