:root {
  --bg: #fafafa; --panel: #ffffff; --text: #1c1c1e; --hint: #6b6b70; --line: #d9d9de;
  --accent: #1f5fae; --accent-text: #ffffff; --warn-bg: #fff4d6; --warn-line: #e8c766;
  --err-bg: #fde8e8; --err-line: #e09a9a; --ok-bg: #e6f4ea; --ok-line: #8cc79a;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #151517; --panel: #1f1f23; --text: #ececf0; --hint: #9a9aa2; --line: #36363c;
          --accent: #6ea8f0; --accent-text: #0b1a2e; --warn-bg: #3a3118; --warn-line: #7a6521;
          --err-bg: #3a1c1c; --err-line: #7a3a3a; --ok-bg: #1b3324; --ok-line: #3d7a52; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
       font: 15px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }
header.top { display: flex; gap: 20px; align-items: center; padding: 10px 24px; background: var(--panel); border-bottom: 1px solid var(--line); }
header.top .brand { font-weight: 700; font-size: 17px; }
header.top a { color: var(--text); text-decoration: none; padding: 4px 2px; border-bottom: 2px solid transparent; }
header.top a.active { border-bottom-color: var(--accent); }
header.top .spacer { flex: 1; }
main { max-width: 1180px; margin: 0 auto; padding: 20px 24px 60px; }
h1 { font-size: 22px; margin: 4px 0 14px; }
h2 { font-size: 17px; margin: 22px 0 8px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px; margin: 12px 0; }
.hint { color: var(--hint); font-size: 13px; }
table { border-collapse: collapse; width: 100%; background: var(--panel); }
th, td { text-align: left; padding: 6px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .03em; color: var(--hint); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
button, .btn { background: var(--accent); color: var(--accent-text); border: 0; border-radius: 6px; padding: 7px 14px; font: inherit; cursor: pointer; text-decoration: none; display: inline-block; }
button.secondary { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
button:disabled { opacity: .45; cursor: not-allowed; }
input, select { font: inherit; padding: 6px 8px; border: 1px solid var(--line); border-radius: 6px; background: var(--panel); color: var(--text); }
label { display: inline-flex; flex-direction: column; gap: 3px; font-size: 13px; color: var(--hint); margin-right: 12px; }
.banner { padding: 8px 12px; border-radius: 6px; margin: 8px 0; border: 1px solid; }
.banner.warn { background: var(--warn-bg); border-color: var(--warn-line); }
.banner.err { background: var(--err-bg); border-color: var(--err-line); }
.banner.ok { background: var(--ok-bg); border-color: var(--ok-line); }
.tag { display: inline-block; font-size: 12px; padding: 1px 8px; border-radius: 10px; border: 1px solid var(--line); }
.tag.warn { background: var(--warn-bg); border-color: var(--warn-line); }
.tag.ok { background: var(--ok-bg); border-color: var(--ok-line); }
.row { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 8px; margin: 8px 0; }
pre.addr { margin: 0; font: inherit; white-space: pre-wrap; }

.modal-backdrop { position: fixed; inset: 0; background: rgba(0, 0, 0, .55); display: flex; align-items: center; justify-content: center; z-index: 50; }
.modal-backdrop[hidden] { display: none; }
.modal { width: 90vw; height: 90vh; background: var(--panel); border: 1px solid var(--line); border-radius: 8px; display: flex; flex-direction: column; padding: 10px 12px; }
.modal-head { display: flex; align-items: center; gap: 10px; padding-bottom: 8px; }
.modal-head h2 { margin: 0; font-size: 17px; }
.modal-head .spacer { flex: 1; }
.modal iframe { flex: 1; width: 100%; border: 1px solid var(--line); border-radius: 4px; background: #fff; }