:root{
  --bg: #0b1020; --card:#121a33; --text:#e7ecff; --muted:#95a0c7; --accent:#7aa2ff; --ok:#3ddc84; --warn:#ffd166;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; font:16px/1.5 system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans";
  color:var(--text);
  background: radial-gradient(1200px 600px at 10% -20%, #1a2454 0%, rgba(26,36,84,0) 60%), var(--bg);
  display:grid; place-items:center; padding:24px;
}
.wrap{width:min(680px, 100%);}
.card{
  background:linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02));
  border:1px solid rgba(255,255,255,0.08);
  border-radius:24px; padding:24px;
  box-shadow:0 8px 30px rgba(0,0,0,0.35);
  backdrop-filter: blur(6px);
}
h1{font-size:clamp(22px, 4vw, 30px); margin:0 0 8px}
p.lead{margin:0 0 20px; color:var(--muted)}
label{display:block; margin:10px 0 6px; color:var(--muted); font-weight:600; letter-spacing:.2px}
.row{display:grid; grid-template-columns: 1fr; gap:14px}
@media (min-width:640px){.row{grid-template-columns: 1fr 1fr}}
input[type="number"],
input[type="text"]{
  width:100%; padding:16px 14px; border-radius:16px;
  border:1px solid rgba(255,255,255,0.16);
  background:#0e1631; color:var(--text);
  outline:none; font-size:20px;
  transition:border .2s, box-shadow .2s;
}
input[type="number"],
input[type="text"]:focus{
  border-color:var(--accent);
  box-shadow:0 0 0 4px rgba(122,162,255,.15)
}
.out{
  background: #0f1a3a;
  border:1px dashed rgba(255,255,255,0.2);
  border-radius:16px; padding:12px 14px;
  min-height:60px;
  display:flex; align-items:center; justify-content:space-between; gap:12px
}
.val{font-size:clamp(28px,5vw,30px); font-weight:800; letter-spacing:.5px}
.suffix{opacity:.9; font-size:clamp(16px,2.2vw,18px)}
.meta{display:flex; gap:12px; flex-wrap:wrap; color:var(--muted); font-size:14px}
.meta-row{padding-top:10px;}
.chip{padding:6px 10px; border-radius:999px; background:rgba(255,255,255,0.06); border:1px solid rgba(255,255,255,0.08)}
.row2{display:flex; align-items:center; justify-content:space-between; gap:12px; margin-top:12px}
.rate{font-weight:700; color:var(--ok)}
.controls{display:flex; gap:8px; align-items:center}
.btn{
  appearance:none; border:1px solid rgba(255,255,255,0.16);
  background:#0e1631; color:var(--text);
  padding:10px 14px; border-radius:12px;
  cursor:pointer; font-weight:600
}
.btn:hover{border-color:var(--accent)}
.muted{color:var(--muted)}
footer{margin-top:18px; color:var(--muted); font-size:12px; text-align:center}
a{color:var(--accent); text-underline-offset:3px}