:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --text: #1c2430;
  --muted: #5f6b7a;
  --border: #dde2e8;
  --accent: #2459d6;
  --accent-text: #ffffff;
  --ok: #1d7a46;
  --warn: #9a6700;
  --bad: #b42318;
  --chip: #eef2f8;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11151b;
    --card: #1a2028;
    --text: #e6eaf0;
    --muted: #9aa5b3;
    --border: #2c3440;
    --accent: #6f9cff;
    --accent-text: #0d1117;
    --ok: #4cc38a;
    --warn: #e3b341;
    --bad: #f47067;
    --chip: #232b36;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 720px; margin: 0 auto; padding: 32px 16px 64px; }
h1 { font-size: 28px; margin: 0 0 8px; }
h2 { font-size: 20px; margin: 0 0 12px; }
.lead { color: var(--muted); margin: 0 0 24px; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 16px;
}
label { display: block; font-weight: 600; margin: 12px 0 6px; }
input, textarea {
  width: 100%;
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
}
textarea { resize: vertical; }
input:focus, textarea:focus, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.row { display: flex; justify-content: flex-end; margin-top: 6px; }
.hint, .muted { color: var(--muted); }
.small { font-size: 14px; }
.examples-title { font-weight: 600; margin: 16px 0 8px; }
.examples { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  font: inherit;
  font-size: 14px;
  color: var(--text);
  background: var(--chip);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 12px;
  cursor: pointer;
}
button.primary, button.secondary {
  font: inherit;
  font-weight: 600;
  border-radius: 8px;
  padding: 10px 20px;
  margin-top: 16px;
  cursor: pointer;
}
button.primary { background: var(--accent); color: var(--accent-text); border: 0; }
button.secondary { background: transparent; color: var(--text); border: 1px solid var(--border); }
button:disabled { opacity: .6; cursor: default; }
.error { color: var(--bad); margin: 12px 0 0; }
.success { color: var(--ok); font-weight: 600; }
.note { background: var(--chip); border-radius: 8px; padding: 10px 12px; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 560px) { .two { grid-template-columns: 1fr; } .card { padding: 18px; } }
.segments { list-style: none; padding: 0; margin: 0; }
.segment { border-top: 1px solid var(--border); padding: 16px 0; }
.segment:first-child { border-top: 0; padding-top: 0; }
.segment-name { font-weight: 600; overflow-wrap: anywhere; }
.segment-reach { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.reach-number { font-size: 22px; font-weight: 700; font-variant-numeric: tabular-nums; }
.badge { font-size: 13px; font-weight: 600; border-radius: 999px; padding: 2px 10px; border: 1px solid currentColor; }
.badge.ok { color: var(--ok); }
.badge.narrow, .badge.broad { color: var(--warn); }
.badge.zero { color: var(--bad); }
.spinner {
  width: 32px; height: 32px; margin-bottom: 16px;
  border: 3px solid var(--border); border-top-color: var(--accent); border-radius: 50%;
  animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .spinner { animation: none; } }
[hidden] { display: none !important; }

/* админка (admin.html) */
main.wide { max-width: 1100px; }
.bar { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 600; white-space: nowrap; }
td { max-width: 360px; overflow-wrap: anywhere; }
tr.link { cursor: pointer; }
tr.link:hover, tr.link:focus { background: var(--chip); outline: none; }
.meta { display: grid; grid-template-columns: max-content 1fr; gap: 4px 16px; margin: 0 0 12px; }
.meta dt { color: var(--muted); }
.meta dd { margin: 0; overflow-wrap: anywhere; }
pre.text { white-space: pre-wrap; overflow-wrap: anywhere; background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px; font-size: 14px; margin: 0 0 12px; }
pre.code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.segment-detail { border-top: 1px solid var(--border); padding-top: 12px; margin-top: 12px; }
.segment-detail h3 { margin: 0 0 6px; font-size: 16px; }
a.button { display: inline-block; text-decoration: none; padding: 8px 14px; border-radius: 8px; }
a.button.secondary { color: var(--text); border: 1px solid var(--border); }

/* segment-admin: вкладки, действия, гистограмма */
.tabs { display: flex; gap: 8px; }
.tabs button[aria-pressed="true"] { border-color: var(--accent); color: var(--accent); }
.actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.actions select { padding: 8px; border: 1px solid var(--border); border-radius: 8px; background: var(--card); color: var(--text); }
main.wide:has(#tab-segments:not([hidden])) { max-width: 1400px; }
#verticals td, #segments td { overflow-wrap: normal; white-space: nowrap; }
#verticals td.files { white-space: normal; overflow-wrap: anywhere; font-size: 12px; min-width: 220px; }
#segments td:nth-child(3) { white-space: normal; min-width: 260px; font-size: 13px; }
#segments td:nth-child(2) { white-space: normal; min-width: 180px; }
td button.secondary, .actions button, .tabs button { margin-top: 0; }
td button.secondary { padding: 4px 10px; font-size: 13px; }
.hist svg { max-width: 100%; height: auto; display: block; }
.hist .bar-rect { fill: var(--accent); }
.hist text { fill: var(--muted); font-size: 11px; }
.hist text.value { fill: var(--text); }
#segment-fields label { margin-top: 12px; }
#verticals td:nth-child(7) { white-space: normal; min-width: 120px; max-width: 200px; }
#verticals td:nth-child(4) { white-space: normal; max-width: 160px; }

/* вкладки Exports и Audit */
main.wide:has(#tab-exports:not([hidden])), main.wide:has(#tab-audit:not([hidden])), main.wide:has(#tab-events:not([hidden])) { max-width: 1400px; }
.small { font-size: 13px; }
#exports th, #exports td { text-align: center; white-space: nowrap; padding: 6px 8px; }
#exports th:first-child, #exports td:first-child { text-align: left; position: sticky; left: 0; background: var(--card); z-index: 1; }
#exports td.cell { padding: 2px 4px; }
#exports .mark { background: none; border: 0; padding: 4px 6px; margin: 0; font-size: 16px; line-height: 1; border-radius: 6px; cursor: default; }
#exports .mark:hover, #exports .mark:focus-visible { background: var(--chip); }
#exports .empty { color: var(--muted); }
.pop { position: fixed; z-index: 20; width: min(460px, calc(100vw - 16px)); background: var(--card); color: var(--text); border: 1px solid var(--border);
  border-radius: 8px; padding: 10px 12px; box-shadow: 0 10px 28px rgba(0, 0, 0, 0.28); font-size: 13px; }
.pop .pop-title { font-weight: 600; margin-bottom: 4px; }
.pop .error { margin: 4px 0 0; overflow-wrap: anywhere; }
.pop .file { display: grid; grid-template-columns: 1fr auto; gap: 2px 10px; align-items: center; margin-top: 8px; }
.pop code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; overflow-wrap: anywhere; }
.pop .size { color: var(--muted); font-variant-numeric: tabular-nums; }
.pop button { margin: 0; padding: 3px 10px; font-size: 12px; }
#audit td { white-space: nowrap; font-size: 13px; }
#audit td:nth-child(4) { white-space: normal; min-width: 220px; max-width: 420px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; }
#audit td:nth-child(7) { white-space: normal; max-width: 220px; color: var(--muted); font-size: 12px; }
#audit td.bad { color: var(--bad); font-weight: 600; }
#audit td:nth-child(2) { white-space: normal; max-width: 320px; overflow-wrap: anywhere; }
#events td { white-space: nowrap; font-size: 13px; }
#events td:nth-child(6) { white-space: normal; min-width: 280px; max-width: 560px; overflow-wrap: anywhere; }
#events td.bad { color: var(--bad); font-weight: 600; }
#events .ev-error { color: var(--bad); font-size: 12px; margin-top: 2px; }
#events tr.ev-full td { white-space: normal; max-width: none; }
#events tr.ev-full pre { margin: 0; max-height: 320px; overflow: auto; }
.actions input[type="search"] { width: 240px; padding: 8px; border: 1px solid var(--border); border-radius: 8px; background: var(--card); color: var(--text); margin: 0; }

/* экран результата: исходный запрос клиента */
.your-brief { margin: 0 0 18px; padding: 12px 14px; background: var(--bg); border: 1px solid var(--border); border-radius: 8px; }
.your-brief .examples-title { margin: 0 0 4px; }
.brief-text { margin: 0; white-space: pre-wrap; overflow-wrap: anywhere; }