:root {
  --bg: #f6f5f1; --card: #ffffff; --ink: #1c1b18; --muted: #6b675f; --line: #e2dfd6;
  --accent: #1f6f5c; --accent-ink: #ffffff; --warn: #9a3412;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #151513; --card: #1e1e1b; --ink: #ecebe6; --muted: #a09c92; --line: #33322d; --accent: #58b79f; --accent-ink: #0d1f1a; --warn: #f0a070; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; }
main { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; }
h1 { font-size: 28px; line-height: 1.2; margin: 0 0 8px; letter-spacing: -0.01em; }
h2 { font-size: 18px; margin: 0 0 8px; display: flex; align-items: center; gap: 10px; }
.n { display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; background: var(--ink); color: var(--bg); font-size: 14px; font-variant-numeric: tabular-nums; }
#status { margin: 0 0 24px; color: var(--muted); min-height: 1.5em; }
#status.error { color: var(--warn); }
.step { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 20px; margin-bottom: 16px; }
.step.done h2 .n { background: var(--accent); color: var(--accent-ink); }
.hint { color: var(--muted); margin: 0 0 12px; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: end; }
button { font: inherit; padding: 9px 16px; border-radius: 8px; border: 1px solid var(--line); background: transparent; color: var(--ink); cursor: pointer; }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 600; }
button:disabled { opacity: 0.5; cursor: default; }
label { display: grid; gap: 4px; font-size: 14px; color: var(--muted); }
select { font: inherit; padding: 8px 10px; border-radius: 8px; border: 1px solid var(--line); background: var(--card); color: var(--ink); }
.wallets { list-style: none; padding: 0; margin: 16px 0 0; display: grid; gap: 8px; }
.wallets li { border: 1px solid var(--line); border-radius: 8px; padding: 12px; display: grid; gap: 8px; }
.wallets .address { font: 14px/1.4 ui-monospace, SFMono-Regular, Menlo, monospace; overflow-wrap: anywhere; }
.wallets .meta { color: var(--muted); font-size: 14px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 500; }
td.amount { font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
td.empty { color: var(--muted); }
[hidden] { display: none !important; }