:root {
  --bg: #fbfaf7;
  --surface: #ffffff;
  --text: #1d1d1f;
  --muted: #5f6368;
  --border: #e4e2dc;
  --accent: #1f6feb;
  --accent-ink: #ffffff;
  --radius: 10px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141414;
    --surface: #1d1d1d;
    --text: #ececec;
    --muted: #a0a0a0;
    --border: #333333;
    --accent: #4c8dff;
    --accent-ink: #0b0b0b;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 16px 64px;
}

h1 { font-size: 1.8rem; line-height: 1.25; margin: 0 0 8px; }
h2 { font-size: 1.2rem; margin: 32px 0 8px; }
p.lead { color: var(--muted); margin: 0 0 24px; }

a { color: var(--accent); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

ul.tools { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
ul.tools a { font-weight: 600; text-decoration: none; }
ul.tools p { margin: 4px 0 0; color: var(--muted); }

label { display: block; font-weight: 600; margin-bottom: 6px; }

textarea, input, select {
  width: 100%;
  font: inherit;
  color: inherit;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
}

textarea { min-height: 180px; resize: vertical; }

button {
  font: inherit;
  font-weight: 600;
  border: 0;
  border-radius: var(--radius);
  padding: 10px 16px;
  background: var(--accent);
  color: var(--accent-ink);
  cursor: pointer;
  margin-top: 12px;
}

.result { margin-top: 16px; }

dl.stats { display: grid; grid-template-columns: 1fr auto; gap: 6px 16px; margin: 0; }
dl.stats dt { color: var(--muted); }
dl.stats dd { margin: 0; font-variant-numeric: tabular-nums; font-weight: 600; text-align: right; }

.note { color: var(--muted); font-size: 0.9rem; }

h3 { font-size: 1rem; margin: 20px 0 6px; }
code, pre { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.85rem; }
button.secondary { background: transparent; color: var(--accent); border: 1px solid var(--border); }
button:disabled { opacity: 0.6; cursor: progress; }

.status { margin-bottom: 12px; border-left-width: 4px; }
.status p { margin: 4px 0 0; color: var(--muted); }
.status-warn { border-left-color: #d97706; }
.status-ok { border-left-color: #16a34a; }
.status-info { border-left-color: var(--accent); }
.status-error { border-left-color: #dc2626; }

ul.findings { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
ul.findings code { display: block; margin-top: 4px; overflow-wrap: anywhere; color: var(--muted); }
ul.findings details { margin-top: 8px; }
ul.findings summary { cursor: pointer; color: var(--accent); }
pre.email { white-space: pre-wrap; overflow-wrap: anywhere; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 10px; }

footer { margin-top: 48px; color: var(--muted); font-size: 0.85rem; }