:root {
  --bg: #0f172a;
  --card: #1e293b;
  --fg: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --ok: #22c55e;
  --warn: #f59e0b;
  --err: #ef4444;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.5;
}
.wrap { max-width: 640px; margin: 0 auto; padding: 16px; }
h1 { font-size: 1.5rem; margin: 0 0 4px; }
h2 { font-size: 1.1rem; margin: 24px 0 8px; }
.sub { color: var(--muted); margin: 0 0 20px; }
.card {
  background: var(--card);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 12px;
}
label { display: block; font-size: .85rem; color: var(--muted); margin: 10px 0 4px; }
input {
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  border: 1px solid #334155;
  background: #0b1220;
  color: var(--fg);
  font-size: 1rem;
}
select {
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  border: 1px solid #334155;
  background: #0b1220;
  color: var(--fg);
  font-size: 1rem;
}
button {
  padding: 12px 16px;
  border-radius: 8px;
  border: none;
  background: var(--accent);
  color: #06263a;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
}
button.secondary { background: #334155; color: var(--fg); }
button.ghost { background: transparent; color: var(--muted); border: 1px solid #334155; }
button.small { padding: 8px 10px; font-size: .85rem; }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.grow { flex: 1; }
.big { font-size: 2.4rem; font-weight: 700; }
.muted { color: var(--muted); }
.pos { font-size: 3rem; font-weight: 800; color: var(--accent); }
.entry { display: flex; justify-content: space-between; align-items: center; gap: 8px; padding: 10px 0; border-bottom: 1px solid #334155; }
.entry:last-child { border-bottom: none; }
.token { display: inline-block; min-width: 2.2em; text-align: center; background: #0b1220; border-radius: 6px; padding: 2px 6px; font-weight: 700; margin-right: 8px; }
.badge { font-size: .75rem; padding: 2px 8px; border-radius: 999px; background: #334155; color: var(--muted); }
.badge.hot { background: var(--warn); color: #3a2500; }
.qr { background: #fff; padding: 8px; border-radius: 8px; display: inline-block; }
.qr img { display: block; width: 220px; height: 220px; }
.err { color: var(--err); }
.ok { color: var(--ok); }
.hint { font-size: .85rem; color: var(--muted); margin-top: 6px; }
.hidden { display: none; }