:root{
  --navy:#0f2a44; --navy-2:#173a5e; --accent:#c8a24a; --bg:#f3f5f8; --card:#ffffff;
  --text:#1d2733; --muted:#6b7785; --line:#dde3ea; --err:#c0392b; --ok:#1e8e5a;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;display:flex;flex-direction:column}
a{color:var(--navy-2)}
header{background:var(--navy);color:#fff;padding:10px 20px;border-bottom:3px solid var(--accent)}
.hwrap{max-width:960px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand{font-weight:700;font-size:18px;letter-spacing:.3px;color:var(--navy);text-decoration:none;display:flex;align-items:center}
.brand img{height:52px;width:auto;display:block}
.brand span{color:var(--accent)}
main{flex:1;padding:32px 16px}
.box{background:var(--card);border:1px solid var(--line);border-radius:12px;box-shadow:0 4px 18px rgba(15,42,68,.06)}
h1{font-size:22px;margin-bottom:6px;color:var(--navy)}
h2{font-size:16px;color:var(--navy);margin-bottom:14px}
.sub{color:var(--muted);font-size:14px;margin-bottom:22px}
label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:#34414f}
input,textarea{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:8px;font-size:15px;background:#fff;color:var(--text);font-family:inherit}
input:focus,textarea:focus{outline:none;border-color:var(--navy-2);box-shadow:0 0 0 3px rgba(23,58,94,.12)}
input.bad{border-color:var(--err)}
.f{margin-bottom:16px}
.row{display:flex;gap:12px}
.row .f{flex:1}
.btn{width:100%;padding:13px;background:var(--navy);color:#fff;border:0;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer}
.btn:hover{background:var(--navy-2)}
.btn:disabled{opacity:.55;cursor:not-allowed}
.msg{font-size:13px;color:var(--err);margin-top:10px;min-height:18px}
.hint{font-size:12px;color:var(--muted);margin-top:14px;text-align:center}

/* pay */
#pay{max-width:960px;margin:0 auto}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.panel{padding:24px}
.cc{height:180px;border-radius:14px;padding:20px;color:#fff;background:linear-gradient(135deg,var(--navy) 0%,#2a5a8a 100%);position:relative;margin-bottom:20px;font-family:"Courier New",monospace;box-shadow:0 8px 20px rgba(15,42,68,.25)}
.cc .chip{width:42px;height:30px;border-radius:6px;background:linear-gradient(135deg,#e6cf8b,#b8933f)}
.cc .num{font-size:20px;letter-spacing:2px;margin-top:26px}
.cc .bot{display:flex;justify-content:space-between;margin-top:20px;font-size:13px;text-transform:uppercase}
.cc .bot small{display:block;font-size:9px;opacity:.7;font-family:Arial}
.cc .type{position:absolute;top:18px;right:20px;font-family:Arial;font-weight:700;font-size:15px;font-style:italic}
.badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
.badge{border:1px solid var(--line);border-radius:6px;padding:5px 10px;font-size:12px;font-weight:700;color:#34414f;background:#fafbfc}
.sec{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--muted);margin-top:16px;line-height:1.5}
.sec svg{flex-shrink:0;margin-top:2px}
.amount{display:flex;align-items:center;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.amount input{border:0;font-size:20px;font-weight:600}
.amount input:focus{box-shadow:none}
.amount span{padding:0 14px;font-weight:700;color:var(--muted);background:#f7f9fb;align-self:stretch;display:flex;align-items:center;border-left:1px solid var(--line)}
.amount:focus-within{border-color:var(--navy-2);box-shadow:0 0 0 3px rgba(23,58,94,.12)}
.chk{display:flex;gap:10px;align-items:flex-start;font-size:13px;line-height:1.5;margin:6px 0 18px}
.chk input{width:18px;height:18px;margin-top:2px;flex-shrink:0}
.total{display:flex;justify-content:space-between;align-items:center;padding:14px 0;border-top:1px dashed var(--line);margin-bottom:14px;font-size:15px}
.total b{font-size:20px;color:var(--navy)}
.warn{background:#fdecea;border:1px solid #f3b8b1;color:#9b2c20;font-size:13px;line-height:1.5;padding:10px 12px;border-radius:8px;margin-bottom:16px}
.test{line-height:1.5;background:#fff8e6;border:1px solid #f0d48a;color:#7a5a00;font-size:13px;padding:10px 14px;border-radius:8px;margin-bottom:20px}

footer{background:var(--navy);color:#c9d3de;font-size:13px;padding:22px 16px}
.fwrap{max-width:960px;margin:0 auto;display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px}
footer a{color:#fff;text-decoration:none;margin-right:16px}
footer a:hover{text-decoration:underline}
footer .links{display:flex;flex-wrap:wrap;gap:6px 0}

@media(max-width:760px){
  .grid{grid-template-columns:1fr}
  .row{flex-direction:column;gap:0}
}

/* sonuç sayfası */
.result{max-width:480px;margin:20px auto;padding:32px;text-align:center}
.result .ic{width:60px;height:60px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 16px}
.result .ic.ok{background:#e8f6ef}
.result .ic.bad{background:#fdecea}
.result p{color:var(--muted);font-size:14px;line-height:1.55;margin:8px 0 20px}
.result table{width:100%;font-size:14px;margin-bottom:22px;text-align:left;border-collapse:collapse}
.result td{padding:8px 0;border-bottom:1px solid var(--line)}
.result td:last-child{text-align:right;font-weight:600}
.result .btn{display:block;text-decoration:none}
.redirect{max-width:420px;margin:40px auto;padding:32px;text-align:center}
.redirect p{color:var(--muted);font-size:14px;margin-top:10px}