:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --text: #1d2433;
  --muted: #5b6475;
  --line: #dde1e8;
  --primary: #1f5eff;
  --ok: #157f3b;
  --no: #b42318;
  --warn-bg: #fff4e5;
  font: 14px/1.45 system-ui, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
}
* { box-sizing: border-box; }
body { margin: 0; }
a { color: var(--primary); }
code { font: 12px/1.3 ui-monospace, Consolas, monospace; background: #eef1f6; padding: 1px 4px; border-radius: 3px; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 10px 24px; background: var(--surface); border-bottom: 1px solid var(--line); }
.brand { font-weight: 700; font-size: 16px; text-decoration: none; color: var(--text); }
.nav { display: flex; align-items: center; gap: 16px; }
.inline { display: inline; margin: 0; }
.page { max-width: 1080px; margin: 0 auto; padding: 16px 24px; }
.hero h1 { margin: 4px 0 4px; font-size: 22px; }
.hero p { margin: 0 0 12px; color: var(--muted); max-width: 760px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; margin-bottom: 12px; }
.card, .panel { background: var(--surface); border: 1px solid var(--line); border-radius: 6px; padding: 12px 16px; }
.panel { margin-bottom: 12px; }
.panel.narrow { max-width: 520px; margin: 0 auto 12px; }
.card h2, .panel h2, .panel h1 { margin: 0 0 6px; font-size: 16px; }
.panel h1 { font-size: 18px; }
.panel h3 { margin: 12px 0 6px; font-size: 14px; }
.card p { margin: 0 0 10px; color: var(--muted); }
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 8px; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; margin: 8px 0; }
.button { display: inline-block; border: 1px solid var(--primary); background: var(--primary); color: #fff; border-radius: 4px; padding: 6px 12px; font: inherit; cursor: pointer; text-decoration: none; }
.button.secondary { background: var(--surface); color: var(--primary); }
.button.success { background: var(--ok); border-color: var(--ok); }
.button:disabled { opacity: 0.6; cursor: progress; }
.link { border: 0; background: none; color: var(--primary); font: inherit; cursor: pointer; padding: 0; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { text-align: left; padding: 5px 8px; border-bottom: 1px solid var(--line); height: 32px; }
.table th { color: var(--muted); font-weight: 600; font-size: 12px; }
td.on { color: var(--ok); font-weight: 600; }
td.no { color: var(--no); }
.badge { display: inline-block; padding: 1px 8px; border-radius: 10px; font-size: 12px; }
.badge.ok { background: #e3f4e8; color: var(--ok); }
.badge.no { background: #fde8e7; color: var(--no); }
.form { display: grid; gap: 10px; }
.form label { display: grid; gap: 4px; font-weight: 600; }
.form input { font: inherit; padding: 6px 8px; border: 1px solid var(--line); border-radius: 4px; }
.error { color: var(--no); min-height: 1em; margin: 4px 0; }
.hint { color: var(--muted); font-size: 12px; }
.result { min-height: 1em; margin: 6px 0 0; }
.result.ok { color: var(--ok); }
.result.no { color: var(--no); }
.alert-warn { background: var(--warn-bg); border: 1px solid #f5c26b; border-radius: 6px; padding: 8px 12px; margin-bottom: 12px; }
.foot { max-width: 1080px; margin: 0 auto; padding: 8px 24px 24px; color: var(--muted); font-size: 12px; }
.log { max-width: 1032px; margin: 0 auto 24px; background: #0f172a; color: #e2e8f0; padding: 10px 12px; border-radius: 6px; white-space: pre-wrap; word-break: break-all; font-size: 12px; }
@media (max-width: 640px) {
  .topbar, .page, .foot { padding-left: 16px; padding-right: 16px; }
  .panel-head { flex-direction: column; align-items: flex-start; }
}