:root {
  --bg: #f8fafc;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
  --accent: #2563eb;
  --accent-text: #ffffff;
  --track: #f1f5f9;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0b1120;
    --card: #111827;
    --text: #e5e7eb;
    --muted: #94a3b8;
    --border: #1f2937;
    --accent: #3b82f6;
    --track: #1f2937;
  }
}
:root[data-theme="dark"] {
  --bg: #0b1120;
  --card: #111827;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --border: #1f2937;
  --accent: #3b82f6;
  --track: #1f2937;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
}
main { max-width: 760px; margin: 0 auto; padding: 48px 16px 64px; }
a { color: var(--accent); }
code, kbd { font: 13px ui-monospace, SFMono-Regular, Menlo, monospace; background: var(--track); padding: 1px 5px; border-radius: 4px; word-break: break-all; }

header { text-align: center; margin-bottom: 28px; }
.brand { font-weight: 600; color: var(--accent); margin: 0 0 12px; }
.brand span { color: var(--muted); font-weight: 400; }
h1 { font-size: clamp(28px, 6vw, 42px); line-height: 1.15; margin: 0 0 12px; letter-spacing: -0.02em; }
.sub { color: var(--muted); max-width: 520px; margin: 0 auto; }

.cta { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.cta select, .cta button {
  font: inherit; border-radius: 10px; padding: 12px 16px; border: 1px solid var(--border);
}
.cta select { background: var(--card); color: var(--text); }
.cta button {
  background: var(--accent); color: var(--accent-text); border-color: var(--accent);
  font-weight: 600; padding: 12px 28px; cursor: pointer;
}
.cta button:disabled { opacity: 0.6; cursor: wait; }
#status { text-align: center; color: var(--muted); min-height: 24px; margin: 12px 0 0; }
#status.error { color: #dc2626; }

.summary, .cat, .install {
  background: var(--card); border: 1px solid var(--border); border-radius: 14px;
}
.summary { padding: 24px; margin: 24px 0 16px; }
.range { color: var(--muted); font-size: 14px; margin: 0 0 6px; }
.headline { font-size: 19px; margin: 0 0 20px; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 20px; }
.stats div { background: var(--track); border-radius: 10px; padding: 12px; }
.stats b { display: block; font-size: 24px; font-variant-numeric: tabular-nums; }
.stats span { color: var(--muted); font-size: 13px; }
.bar { display: flex; height: 14px; border-radius: 7px; overflow: hidden; gap: 2px; }
.bar span { min-width: 3px; }
.legend { list-style: none; padding: 0; margin: 14px 0 0; display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: 14px; color: var(--muted); }
.legend b { color: var(--text); font-weight: 600; }
.dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 6px; flex: none; }

.cats { display: grid; gap: 10px; }
.cat { padding: 0 20px; }
.cat summary {
  display: flex; align-items: center; gap: 8px; padding: 16px 0; cursor: pointer; list-style: none;
}
.cat summary::-webkit-details-marker { display: none; }
.cat-name { font-weight: 600; }
.cat-meta { color: var(--muted); font-size: 14px; flex: 1; }
.cat-pct { font-weight: 600; font-variant-numeric: tabular-nums; }
.domains, .pages { list-style: none; padding: 0; margin: 0 0 12px; }
.domains li { display: grid; grid-template-columns: 16px minmax(0, 1fr) 30% 56px; align-items: center; gap: 10px; padding: 5px 0; font-size: 14px; }
.badge { width: 16px; height: 16px; border-radius: 4px; color: #fff; font-size: 10px; font-weight: 700; display: grid; place-items: center; }
.host { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.meter { height: 6px; background: var(--track); border-radius: 3px; overflow: hidden; }
.meter span { display: block; height: 100%; border-radius: 3px; }
.n { text-align: right; color: var(--muted); font-variant-numeric: tabular-nums; font-size: 13px; }
.more { font-size: 13px; color: var(--muted); margin: 0 0 12px; }
.pages-label { font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); margin: 8px 0 4px; }
.pages li { display: flex; justify-content: space-between; gap: 12px; font-size: 14px; padding: 3px 0; }
.pages a { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; text-decoration: none; }
.pages a:hover { text-decoration: underline; }
.empty { text-align: center; color: var(--muted); margin: 32px 0; }

.install { padding: 24px; margin-top: 32px; transition: box-shadow 0.3s; }
.install.flash { box-shadow: 0 0 0 3px var(--accent); }
.install h2 { margin: 0 0 8px; font-size: 20px; }
.install > p { color: var(--muted); margin: 0 0 12px; }
.install ol { padding-left: 20px; margin: 0 0 20px; }
.install li { margin: 4px 0; }
body.has-ext .install h2::after { content: " (installed ✓)"; color: #16a34a; font-size: 15px; font-weight: 500; }

.drop { border: 2px dashed var(--border); border-radius: 12px; padding: 18px; text-align: center; }
.drop.over { border-color: var(--accent); background: var(--track); }
.drop p { margin: 0 0 10px; }
.drop details { text-align: left; font-size: 14px; margin-top: 12px; color: var(--muted); }
.drop details summary { cursor: pointer; text-align: center; }
.file-btn { display: inline-block; border: 1px solid var(--border); border-radius: 8px; padding: 8px 16px; cursor: pointer; background: var(--card); }

footer { text-align: center; color: var(--muted); font-size: 13px; margin-top: 40px; }

@media (max-width: 520px) {
  .cat-meta { display: none; }
  .domains li { grid-template-columns: 16px minmax(0, 1fr) 25% 48px; }
  .stats b { font-size: 20px; }
}