:root{
  --bg1:#0a1a3a;
  --bg2:#0f2d68;
  --card:#0e1f45;
  --card-2:#0c1a3a;
  --muted:#a8b5d6;
  --text:#eaf0ff;
  --primary:#3b82f6;
  --primary-2:#2563eb;
  --danger:#ef4444;
  --good:#22c55e;
  --shadow:0 10px 30px rgba(0,0,0,.25);
  --radius:18px;
}

*{box-sizing:border-box}
html,body{height:100%}
body.bg{
  margin:0;
  color:var(--text);
  font:16px/1.5 ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,"Noto Sans",sans-serif;
  background: radial-gradient(1200px 800px at 10% 0%, var(--bg2), var(--bg1));
}

.container{
  max-width:1080px;
  margin:40px auto;
  padding:0 16px;
}

.topbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:16px 20px;
  background:linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,0));
}

.brand{display:flex;align-items:center;gap:12px}
.logo{
  width:36px;height:36px;border-radius:12px;
  background:
    radial-gradient(circle at 30% 30%, #7aa6ff 0 35%, transparent 36%),
    radial-gradient(circle at 70% 70%, #4f7be9 0 35%, transparent 36%),
    linear-gradient(135deg, #75a5ff, #274a9a);
  box-shadow: var(--shadow);
}
.brand-text{display:flex;flex-direction:column}
.brand-text strong{letter-spacing:.3px}
.brand-text span{font-size:12px;color:var(--muted)}

.card{
  background:linear-gradient(180deg, var(--card), var(--card-2));
  border:1px solid rgba(255,255,255,.06);
  border-radius:var(--radius);
  padding:20px;
  box-shadow:var(--shadow);
}
.card--narrow{max-width:460px;margin:0 auto}

.grid{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:900px){.grid{grid-template-columns:1.1fr .9fr}}

.title{font-size:28px;margin:0 0 8px}
.subtitle{font-size:22px;margin:0 0 10px}
.muted{color:var(--muted)}
.mb-12{margin-bottom:12px}
.mb-16{margin-bottom:16px}

.kv{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px dashed rgba(255,255,255,.1)}
.kv:last-child{border-bottom:0}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace}
.money{font-weight:700}

.form{display:grid;gap:12px;margin-top:8px}
.label{display:grid;gap:6px;font-size:14px}
.input{
  width:100%;padding:12px 14px;border-radius:12px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.03);color:var(--text);
  outline:none;
}
.input:focus{border-color:rgba(59,130,246,.7);box-shadow:0 0 0 3px rgba(59,130,246,.25)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 14px;border-radius:12px;border:1px solid transparent;
  cursor:pointer;text-decoration:none;color:#fff;font-weight:600;
  transition:.15s transform ease, .15s background-color ease, .15s border-color ease, .15s opacity ease;
}
.btn:active{transform:translateY(1px)}
.btn--primary{background:var(--primary);border-color:#2f6de8}
.btn--primary:hover{background:var(--primary-2)}
.btn--ghost{background:transparent;border-color:rgba(255,255,255,.18)}
.btn--ghost:hover{background:rgba(255,255,255,.06)}
.btn--danger{background:var(--danger)}
.btn--danger:hover{opacity:.9}

.error{
  background:linear-gradient(180deg, rgba(239,68,68,.15), rgba(239,68,68,.08));
  border:1px solid rgba(239,68,68,.35);
  color:#ffe6e6;padding:10px 12px;border-radius:12px;margin-top:12px;
}
.error--soft{
  background:linear-gradient(180deg, rgba(59,130,246,.12), rgba(59,130,246,.06));
  border-color:rgba(59,130,246,.4);color:#dfeaff;
}

.hint{margin-top:16px;border:1px dashed rgba(255,255,255,.2);border-radius:14px;overflow:hidden}
.hint-title{padding:10px 12px;background:rgba(255,255,255,.06);font-weight:700}
.hint-body{padding:10px 12px;color:var(--muted)}
.hint code{background:rgba(255,255,255,.08);padding:2px 6px;border-radius:8px}

.note{margin-top:10px;color:var(--muted)}
.note--good{color:#a7f3d0}
.note--bad{color:#fecaca}

.actions{display:flex;align-items:center;gap:8px}

.footer{
  display:flex;justify-content:center;padding:24px 0;color:var(--muted)
}

.footnote{color:var(--muted);margin-top:14px;font-size:13px}