:root {
  color-scheme: light dark;
  --bg: #f6f6f4;
  --fg: #1d1f24;
  --muted: #6b6f78;
  --line: #d9d9d4;
  --field: #ffffff;
  --accent: #c8691c;
  --ok: #2f7d3b;
  --error: #b3261e;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16181d;
    --fg: #ececea;
    --muted: #9a9ea7;
    --line: #30333b;
    --field: #1f2228;
    --accent: #e08a3c;
    --ok: #6cc17a;
    --error: #f2867d;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-text-size-adjust: 100%;
}
main {
  max-width: 34rem;
  margin: 0 auto;
  padding: max(1rem, env(safe-area-inset-top)) 1rem max(2rem, env(safe-area-inset-bottom));
}
h1 { font-size: 1.5rem; margin: 0.5rem 0 1rem; }
h2 { font-size: 1.1rem; margin: 0 0 0.5rem; }
section, details {
  border-top: 1px solid var(--line);
  padding: 1rem 0;
}
summary { font-weight: 600; cursor: pointer; padding: 0.25rem 0; }
p { margin: 0.4rem 0; }
.balance { font-size: 2.2rem; font-weight: 700; margin: 0; }
.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.ok { color: var(--ok); }
.error { color: var(--error); }
.mono { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 0.9rem; }
.address, .secret { word-break: break-all; }
.secret {
  padding: 0.75rem;
  border: 1px dashed var(--accent);
  border-radius: 8px;
  user-select: all;
  -webkit-user-select: all;
}
input[type="text"], select {
  width: 100%;
  font: inherit;
  font-size: 16px; /* 16px or more: iOS does not zoom into the field */
  color: var(--fg);
  background: var(--field);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.6rem 0.7rem;
  margin: 0.25rem 0;
}
button {
  font: inherit;
  font-size: 16px;
  color: var(--fg);
  background: var(--field);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.6rem 1rem;
  margin: 0.25rem 0.4rem 0.25rem 0;
  min-height: 44px;
}
button:disabled { opacity: 0.5; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
button.danger { color: var(--error); }
.row { display: flex; gap: 0.4rem; align-items: center; flex-wrap: wrap; }
.row input[type="text"] { flex: 1 1 12rem; }
.row select { flex: 0 0 7.5rem; width: auto; }
.item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--line);
}
.check { display: flex; gap: 0.5rem; align-items: center; margin: 0.75rem 0; }
.check input { width: 1.3rem; height: 1.3rem; }