:root{
  --bg:#0a0710; --panel:#160e24; --ink:#efe9f7; --muted:#9a8fb0;
  --line:#2c2140; --purple:#bb24ed; --lime:#c7f900; --warm:#ffd36b;
}
*{box-sizing:border-box}
body{
  margin:0;min-height:100vh;padding:22px;
  background:
    radial-gradient(900px 560px at 12% -10%, rgba(187,36,237,.18), transparent 60%),
    radial-gradient(800px 520px at 115% 120%, rgba(199,249,0,.07), transparent 55%),
    var(--bg);
  color:var(--ink);font-family:"Bricolage Grotesque",system-ui,sans-serif;
  display:grid;place-items:start center;
}
.wrap{width:min(560px,100%)}
header h1{font-size:1.7rem;font-weight:800;margin:0 0 4px}
.sub{color:var(--muted);margin:0 0 18px;font-size:.95rem}
b{color:var(--lime);font-weight:700}

.controls{
  display:flex;align-items:center;gap:14px;background:var(--panel);
  border:1px solid var(--line);border-radius:14px;padding:14px 18px;margin-bottom:14px;
}
.controls label{font-weight:700;letter-spacing:.04em}
.controls input[type=number]{
  width:92px;background:#0d0916;border:1.5px solid var(--line);border-radius:10px;
  color:var(--lime);font-family:"Space Mono",monospace;font-weight:700;font-size:1.4rem;
  text-align:center;padding:8px 10px;outline:none;
}
.controls input[type=number]:focus{border-color:var(--purple);box-shadow:0 0 0 3px rgba(187,36,237,.18)}
.controls .unit{color:var(--muted);font-family:"Space Mono",monospace;font-size:.8rem}

.table-wrap{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:14px;margin-bottom:14px}
.table-head{display:flex;justify-content:space-between;color:var(--muted);
  font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;margin-bottom:10px;padding:0 4px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(70px,1fr));gap:6px}
.pair{
  display:flex;align-items:center;justify-content:center;gap:6px;
  border:1px solid var(--line);border-radius:8px;padding:7px 0;
  font-family:"Space Mono",monospace;background:rgba(255,255,255,.02);
}
.pair .from{color:var(--muted)}
.pair .arrow{color:var(--purple)}
.pair .to{color:var(--ink);font-weight:700}

.hint{color:var(--muted);font-size:.85rem;line-height:1.5}