:root {
  --bg: #f4f5f7;
  --panel: #ffffff;
  --text: #14171c;
  --muted: #55606e;
  --line: #d5dae1;
  --accent: #1f5fd6;
  --accent-text: #ffffff;
  --danger: #b3261e;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1116;
    --panel: #171b22;
    --text: #e8ebf0;
    --muted: #9aa5b4;
    --line: #2b323d;
    --accent: #6ea0ff;
    --accent-text: #0b1220;
    --danger: #ff8a80;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 18px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
header, main { max-width: 1040px; margin: 0 auto; padding: 0 20px; }
header { padding-top: 32px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px 20px; }
h1 { font-size: 34px; margin: 0; letter-spacing: -0.01em; }
h2 { font-size: 24px; margin: 0 0 16px; }
.tag { margin: 0; color: var(--muted); }
section { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 24px; margin: 20px 0; }
#status { min-height: 28px; margin: 20px 0 0; font-weight: 600; overflow-wrap: anywhere; }
#status.error { color: var(--danger); }

.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; }
.tile { border: 1px solid var(--line); border-radius: 10px; padding: 16px; display: flex; flex-direction: column; }
.label { color: var(--muted); }
.value { font-size: 32px; font-weight: 700; font-variant-numeric: tabular-nums; }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 8px 20px; margin: 20px 0 0; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; overflow-wrap: anywhere; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 16px; }

button, select, input {
  font: inherit;
  min-height: 50px;
  border-radius: 10px;
  border: 1px solid var(--line);
  padding: 10px 18px;
  color: var(--text);
  background: var(--panel);
}
button { background: var(--accent); color: var(--accent-text); border-color: var(--accent); font-weight: 600; cursor: pointer; }
button.secondary { background: transparent; color: var(--text); border-color: var(--line); }
button.danger { background: transparent; color: var(--danger); border-color: var(--danger); }
button:disabled { opacity: 0.5; cursor: default; }
button:focus-visible, select:focus-visible, input:focus-visible, tr:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.row { display: flex; flex-wrap: wrap; gap: 12px; }

.wallet { border: 1px solid var(--line); border-radius: 10px; padding: 18px; margin-top: 16px; }
.wallet-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 4px 20px; }
.wallet-name { font-weight: 700; font-size: 20px; }
.wallet-balance { font-size: 24px; font-weight: 700; font-variant-numeric: tabular-nums; }
.wallet .mono { margin: 8px 0; overflow-wrap: anywhere; }
.wallet .keys { color: var(--muted); margin: 0 0 14px; }
.wallet .proof, .wallet .seed { margin: 14px 0 0; overflow-wrap: anywhere; }
.wallet .proof.bad { color: var(--danger); font-weight: 600; }
#import-form { margin-top: 16px; }

form { display: grid; grid-template-columns: max-content 1fr; gap: 12px 20px; align-items: center; }
form button { grid-column: 2; justify-self: start; min-width: 160px; }
form input, form select { width: 100%; min-width: 0; }
@media (max-width: 640px) {
  form { grid-template-columns: 1fr; gap: 6px; }
  form button { grid-column: 1; margin-top: 10px; }
  form label { margin-top: 8px; }
}

.scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { color: var(--muted); font-weight: 600; }
td.num, th.num { font-variant-numeric: tabular-nums; }
tbody#blocks tr { cursor: pointer; }
tbody#blocks tr:hover, tbody#blocks tr[aria-selected="true"] { background: color-mix(in srgb, var(--accent) 12%, transparent); }
#block-detail h3 { font-size: 20px; margin: 24px 0 12px; }
.empty { color: var(--muted); margin: 16px 0 0; }

#my-node { margin-top: 20px; }
#my-node p { margin: 0 0 14px; overflow-wrap: anywhere; }

#token-add { margin-top: 20px; }
.token { border: 1px solid var(--line); border-radius: 10px; padding: 18px; margin-top: 16px; }
.token h3 { font-size: 20px; margin: 0 0 6px; }
.token p { margin: 6px 0; overflow-wrap: anywhere; }
.token form { margin-top: 14px; }