:root {
  color-scheme: light dark;
  --bg: #f6f7f9;
  --fg: #18202f;
  --muted: #667085;
  --card: #fff;
  --line: #d9e0ea;
  --primary: #2563eb;
  --danger: #dc2626;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f131a;
    --fg: #edf2f7;
    --muted: #a4adbb;
    --card: #171c25;
    --line: #303848;
  }
}

* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; background: var(--bg); color: var(--fg); }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 22px; border-bottom: 1px solid var(--line); background: var(--card); position: sticky; top: 0; z-index: 10; }
.brand { color: var(--fg); font-weight: 800; font-size: 18px; }
nav { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
nav form { display: inline; }
.container { width: min(1180px, calc(100% - 28px)); margin: 24px auto 48px; }
.public { max-width: 920px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 18px; margin-bottom: 16px; }
.narrow { max-width: 440px; margin: 48px auto; }
h1 { margin: 0 0 16px; font-size: 24px; }
h2 { margin: 0 0 12px; font-size: 18px; }
.section-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 12px; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 16px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 18px; }
.stat strong { display: block; font-size: 30px; }
.stat span, .muted { color: var(--muted); }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px 8px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { color: var(--muted); font-weight: 700; }
.form { display: grid; gap: 12px; }
.form.grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.wide { grid-column: 1 / -1; }
label { display: grid; gap: 6px; font-weight: 650; }
input, textarea, select { width: 100%; border: 1px solid var(--line); border-radius: 8px; padding: 9px 10px; background: transparent; color: var(--fg); font: inherit; }
button, .button { display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--line); border-radius: 8px; padding: 8px 13px; background: transparent; color: var(--fg); cursor: pointer; font: inherit; font-weight: 700; text-decoration: none; }
button:hover, .button:hover { background: color-mix(in srgb, var(--fg) 8%, transparent); text-decoration: none; }
.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; }
.badge { display: inline-block; border-radius: 999px; padding: 3px 8px; font-size: 12px; font-weight: 800; }
.badge.ok { background: rgba(34, 197, 94, .16); color: #16a34a; }
.badge.muted { background: rgba(127, 127, 127, .16); color: var(--muted); }
.result-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 12px 0 18px; }
.result-grid div { border: 1px solid var(--line); border-radius: 10px; padding: 14px; }
.result-grid span { display: block; color: var(--muted); }
.result-grid strong { display: block; font-size: 22px; margin-top: 5px; }
.details { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 8px 12px; }
.details dt { color: var(--muted); }
.details dd { margin: 0; word-break: break-all; }
pre { overflow: auto; background: rgba(127,127,127,.1); border-radius: 8px; padding: 12px; }

@media (max-width: 780px) {
  .topbar, .section-head { align-items: flex-start; flex-direction: column; }
  .stats, .form.grid, .result-grid { grid-template-columns: 1fr; }
  table { display: block; overflow-x: auto; }
  .details { grid-template-columns: 1fr; }
}