:root {
    --bg: #F2F3F8;
    --card: #FFFFFF;
    --card-2: #F7F8FC;
    --text: #1B2141;
    --muted: #646A85;
    --line: #DCDFEA;
    --line-strong: #C4C9DB;
    --primary: #2F3B8F;
    --primary-ink: #FFFFFF;
    --primary-soft: #E9EBF8;
    --primary-soft-ink: #26307A;
    --gold: #B98F2E;
    --gold-fill: #D9B65C;
    --gold-soft: #F6EED8;
    --good: #1E7A4F;
    --good-soft: #E1F3E8;
    --warn: #A8690E;
    --warn-soft: #FBEFD6;
    --crit: #B93A32;
    --crit-soft: #FBE3E0;
    --shadow: 0 1px 2px rgba(27,33,65,.06), 0 8px 24px -12px rgba(27,33,65,.18);
    --radius: 14px;
    --radius-sm: 9px;
    --display: 'Piazzolla', Georgia, 'Times New Roman', serif;
    --body: 'Golos Text', -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
    --mono: 'JetBrains Mono', 'SF Mono', Menlo, Consolas, monospace;
    color-scheme: light;
  }
  @media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
      --bg: #0F1222;
      --card: #181C30;
      --card-2: #1F2440;
      --text: #E7E9F4;
      --muted: #A1A7C4;
      --line: #2B3050;
      --line-strong: #3B4270;
      --primary: #97A3F7;
      --primary-ink: #0F1222;
      --primary-soft: #252C56;
      --primary-soft-ink: #C9D0FF;
      --gold: #E0BC63;
      --gold-fill: #C9A24B;
      --gold-soft: #3A3220;
      --good: #5CC98C;
      --good-soft: #163A2A;
      --warn: #E5AD4F;
      --warn-soft: #3E2E12;
      --crit: #F08A80;
      --crit-soft: #47201D;
      --shadow: 0 1px 2px rgba(0,0,0,.4), 0 10px 28px -14px rgba(0,0,0,.7);
      color-scheme: dark;
    }
  }
  :root[data-theme="dark"] {
    --bg: #0F1222;
    --card: #181C30;
    --card-2: #1F2440;
    --text: #E7E9F4;
    --muted: #A1A7C4;
    --line: #2B3050;
    --line-strong: #3B4270;
    --primary: #97A3F7;
    --primary-ink: #0F1222;
    --primary-soft: #252C56;
    --primary-soft-ink: #C9D0FF;
    --gold: #E0BC63;
    --gold-fill: #C9A24B;
    --gold-soft: #3A3220;
    --good: #5CC98C;
    --good-soft: #163A2A;
    --warn: #E5AD4F;
    --warn-soft: #3E2E12;
    --crit: #F08A80;
    --crit-soft: #47201D;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 10px 28px -14px rgba(0,0,0,.7);
    color-scheme: dark;
  }

  * { box-sizing: border-box; }
  html { -webkit-text-size-adjust: 100%; }
  body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--body);
    font-size: 16px;
    line-height: 1.5;
    min-height: 100vh;
  }
  button, input, textarea, select { font: inherit; color: inherit; }
  button { cursor: pointer; }
  a { color: var(--primary); }
  h1, h2, h3, h4 { margin: 0; font-family: var(--display); font-weight: 600; line-height: 1.2; text-wrap: balance; }
  h1 { font-size: 30px; letter-spacing: -.01em; }
  h2 { font-size: 22px; }
  h3 { font-size: 18px; }
  p { margin: 0; }
  ul { margin: 0; padding-left: 20px; }
  .muted { color: var(--muted); }
  .small { font-size: 14px; }
  .mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
  .eyebrow { font-size: 12px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
  .display { font-family: var(--display); }
  :focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

  .shell { max-width: 760px; margin: 0 auto; padding: 0 16px 80px; }
  .topbar {
    position: sticky; top: 0; z-index: 20;
    background: color-mix(in srgb, var(--bg) 88%, transparent);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--line);
  }
  .topbar-inner { max-width: 760px; margin: 0 auto; padding: 10px 16px; display: flex; align-items: center; gap: 10px; min-height: 52px; }
  .topbar .brand { font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .topbar .grow { flex: 1; min-width: 0; }
  .progress { height: 3px; background: var(--line); }
  .progress > i { display: block; height: 100%; background: var(--gold-fill); transition: width .25s ease; }
  @media (prefers-reduced-motion: reduce) { .progress > i { transition: none; } }

  .stack { display: flex; flex-direction: column; gap: 14px; }
  .stack-lg { display: flex; flex-direction: column; gap: 22px; }
  .row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
  .between { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; }
  .card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); }
  .card-quiet { background: var(--card-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
  .section { padding-top: 26px; }
  .lead { font-size: 17px; max-width: 62ch; }
  .measure { max-width: 62ch; }

  .btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 11px 16px; border-radius: var(--radius-sm);
    border: 1px solid var(--line-strong); background: var(--card); color: var(--text);
    font-weight: 500; line-height: 1.2; text-decoration: none; min-height: 42px;
  }
  .btn:hover { border-color: var(--primary); }
  .btn-primary { background: var(--primary); color: var(--primary-ink); border-color: var(--primary); }
  .btn-primary:hover { filter: brightness(1.06); border-color: var(--primary); }
  .btn-ghost { background: transparent; border-color: transparent; color: var(--primary); padding-left: 8px; padding-right: 8px; }
  .btn-ghost:hover { background: var(--primary-soft); border-color: transparent; }
  .btn-danger { color: var(--crit); border-color: var(--crit); background: transparent; }
  .btn-lg { padding: 14px 20px; font-size: 17px; min-height: 50px; }
  .btn-block { width: 100%; }
  .btn[disabled] { opacity: .5; cursor: not-allowed; }
  .btn-sm { padding: 7px 11px; min-height: 34px; font-size: 14px; }

  .field { display: flex; flex-direction: column; gap: 6px; }
  .label { font-weight: 500; }
  .hint { font-size: 14px; color: var(--muted); }
  input[type="text"], input[type="number"], textarea, select {
    width: 100%; padding: 11px 12px; border-radius: var(--radius-sm);
    border: 1px solid var(--line-strong); background: var(--card); color: var(--text);
  }
  input[type="text"]:focus, textarea:focus, select:focus { outline: 2px solid var(--primary); outline-offset: -1px; border-color: var(--primary); }
  textarea { min-height: 110px; resize: vertical; line-height: 1.45; }
  textarea.short { min-height: 72px; }

  .chips { display: flex; flex-wrap: wrap; gap: 8px; }
  .chip {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 7px 12px; border-radius: 999px; border: 1px solid var(--line-strong);
    background: var(--card); color: var(--text); font-size: 14px; line-height: 1.2; min-height: 34px;
  }
  .chip:hover { border-color: var(--primary); }
  .chip.on { background: var(--primary-soft); color: var(--primary-soft-ink); border-color: var(--primary); font-weight: 500; }
  .chip.on::before { content: "✓"; font-size: 12px; }

  .pill { display: inline-flex; align-items: center; gap: 6px; padding: 3px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; letter-spacing: .02em; border: 1px solid transparent; }
  .pill-good { background: var(--good-soft); color: var(--good); }
  .pill-warn { background: var(--warn-soft); color: var(--warn); }
  .pill-muted { background: var(--card-2); color: var(--muted); border-color: var(--line); }
  .pill-gold { background: var(--gold-soft); color: var(--gold); }
  .pill-primary { background: var(--primary-soft); color: var(--primary-soft-ink); }

  .seg { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
  .seg button { padding: 9px 6px; border-radius: var(--radius-sm); border: 1px solid var(--line-strong); background: var(--card); font-size: 13px; line-height: 1.2; min-height: 40px; }
  .seg button.on { background: var(--primary-soft); color: var(--primary-soft-ink); border-color: var(--primary); font-weight: 600; }
  .seg button.on.reg { background: var(--good-soft); color: var(--good); border-color: var(--good); }
  .seg button.on.tried { background: var(--warn-soft); color: var(--warn); border-color: var(--warn); }
  .tool-row { display: flex; flex-direction: column; gap: 8px; padding: 14px 0; border-top: 1px solid var(--line); }
  .tool-row:first-child { border-top: 0; padding-top: 0; }
  .tool-name { font-weight: 500; }

  .scale { display: grid; grid-template-columns: repeat(11, 1fr); gap: 5px; }
  .scale button { aspect-ratio: 1; min-height: 38px; border-radius: 8px; border: 1px solid var(--line-strong); background: var(--card); font-family: var(--mono); font-size: 14px; padding: 0; }
  .scale button.on { background: var(--primary); color: var(--primary-ink); border-color: var(--primary); font-weight: 600; }
  .scale-ends { display: flex; justify-content: space-between; font-size: 13px; color: var(--muted); }
  @media (max-width: 420px) { .scale { grid-template-columns: repeat(6, 1fr); } .scale button { aspect-ratio: auto; } }

  .options { display: flex; flex-direction: column; gap: 8px; }
  .opt {
    display: flex; align-items: flex-start; gap: 12px; text-align: left;
    padding: 12px 14px; border-radius: var(--radius-sm); border: 1px solid var(--line-strong); background: var(--card);
    line-height: 1.35;
  }
  .opt:hover { border-color: var(--primary); }
  .opt .box { flex: 0 0 auto; width: 20px; height: 20px; border-radius: 6px; border: 1.5px solid var(--line-strong); margin-top: 1px; display: grid; place-items: center; font-size: 12px; }
  .opt.radio .box { border-radius: 50%; }
  .opt.on { border-color: var(--primary); background: var(--primary-soft); color: var(--primary-soft-ink); }
  .opt.on .box { background: var(--primary); border-color: var(--primary); color: var(--primary-ink); }
  .opt.on .box::before { content: "✓"; }

  .q-title { font-family: var(--display); font-size: 24px; font-weight: 600; line-height: 1.25; text-wrap: balance; }
  .q-sub { color: var(--muted); font-size: 15px; }
  .nav { display: flex; justify-content: space-between; gap: 10px; padding-top: 8px; }

  .plist { display: grid; grid-template-columns: 1fr; gap: 10px; }
  @media (min-width: 640px) { .plist { grid-template-columns: 1fr 1fr; } }
  .pcard { display: flex; flex-direction: column; gap: 10px; text-align: left; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; box-shadow: var(--shadow); }
  .pcard:hover { border-color: var(--primary); }
  .pcard .name { font-family: var(--display); font-size: 19px; font-weight: 600; }
  .stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 14px; }
  .stat .num { font-family: var(--mono); font-size: 26px; font-weight: 600; line-height: 1.1; }
  .stat .lbl { font-size: 13px; color: var(--muted); margin-top: 4px; }

  .tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); overflow-x: auto; }
  .tab { padding: 10px 12px; border: 0; background: transparent; color: var(--muted); font-weight: 500; border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap; }
  .tab.on { color: var(--primary); border-bottom-color: var(--primary); }

  details.block { border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); box-shadow: var(--shadow); }
  details.block > summary { list-style: none; cursor: pointer; padding: 14px 18px; display: flex; align-items: center; gap: 12px; }
  details.block > summary::-webkit-details-marker { display: none; }
  details.block > summary .bnum { font-family: var(--mono); font-size: 13px; color: var(--muted); min-width: 22px; }
  details.block > summary .btitle { font-family: var(--display); font-size: 19px; font-weight: 600; flex: 1; }
  details.block > summary .bmin { font-family: var(--mono); font-size: 13px; color: var(--gold); white-space: nowrap; }
  details.block > summary .caret { color: var(--muted); transition: transform .2s; }
  details.block[open] > summary .caret { transform: rotate(180deg); }
  details.block .bbody { padding: 0 18px 18px; display: flex; flex-direction: column; gap: 16px; border-top: 1px solid var(--line); padding-top: 16px; }
  .goal { border-left: 3px solid var(--gold-fill); padding: 2px 0 2px 12px; color: var(--muted); font-size: 15px; }
  .qs { display: flex; flex-direction: column; gap: 14px; }
  .q { display: flex; gap: 12px; }
  .q .qn { font-family: var(--mono); font-size: 13px; color: var(--muted); padding-top: 5px; min-width: 22px; }
  .q .qt { font-family: var(--display); font-size: 19px; font-weight: 500; line-height: 1.3; }
  .q .probes { margin-top: 6px; padding-left: 16px; color: var(--muted); font-size: 14.5px; }
  .q .probes li { margin: 3px 0; }
  .listen { font-size: 14px; color: var(--muted); background: var(--card-2); border-radius: var(--radius-sm); padding: 10px 12px; }
  .listen b { color: var(--text); font-weight: 600; }
  .script { font-family: var(--display); font-size: 18px; line-height: 1.45; border-left: 3px solid var(--primary); padding-left: 14px; }

  .timer { font-family: var(--mono); font-size: 15px; padding: 6px 10px; border-radius: 8px; border: 1px solid var(--line-strong); background: var(--card); display: inline-flex; gap: 8px; align-items: center; }
  .timer.over { border-color: var(--warn); color: var(--warn); }
  .timer .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--line-strong); }
  .timer.run .dot { background: var(--good); }

  .answer { display: flex; flex-direction: column; gap: 4px; padding: 10px 0; border-top: 1px solid var(--line); }
  .answer:first-child { border-top: 0; padding-top: 0; }
  .answer .k { font-size: 13px; color: var(--muted); }
  .answer .v { white-space: pre-wrap; }
  .tool-list { display: flex; flex-direction: column; gap: 6px; }
  .tool-line { display: flex; justify-content: space-between; gap: 10px; align-items: baseline; font-size: 15px; }
  .tool-line .st { font-size: 12px; font-weight: 600; white-space: nowrap; }
  .st.reg { color: var(--good); } .st.tried { color: var(--warn); } .st.no { color: var(--muted); }

  .toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: 10px; font-size: 14px; z-index: 50; box-shadow: var(--shadow); max-width: calc(100% - 32px); }
  .divider { height: 1px; background: var(--line); }
  .code { font-family: var(--mono); font-size: 13px; word-break: break-all; background: var(--card-2); border-radius: var(--radius-sm); padding: 10px 12px; }
  .home-hero { padding: 36px 0 10px; display: flex; flex-direction: column; gap: 12px; }
  .home-hero h1 { font-size: 34px; }
  @media (max-width: 480px) { .home-hero h1 { font-size: 28px; } h1 { font-size: 26px; } .q-title { font-size: 21px; } }
  .entry { display: flex; flex-direction: column; gap: 10px; text-align: left; }
  .entry .big { font-family: var(--display); font-size: 21px; font-weight: 600; }
  .kv { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; font-size: 15px; }
  .kv dt { color: var(--muted); } .kv dd { margin: 0; }
  .notes-label { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; }
  .grid2 { display: grid; grid-template-columns: 1fr; gap: 10px; }
  @media (min-width: 560px) { .grid2 { grid-template-columns: 1fr 1fr; } }

  @media print {
    .topbar, .no-print { display: none !important; }
    body { background: #fff; color: #000; }
    .card, details.block { box-shadow: none; border-color: #bbb; }
    details.block { break-inside: avoid; }
    details.block > summary .caret { display: none; }
  }

/* ---- состояния сети и сохранения ---- */
.savestate { font-size: 12px; color: var(--muted); white-space: nowrap; display: inline-flex; align-items: center; gap: 6px; }
.savestate::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--line-strong); }
.savestate.saving::before { background: var(--warn); }
.savestate.saved::before { background: var(--good); }
.savestate.error::before { background: var(--crit); }
.savestate.error { color: var(--crit); }
.loading { color: var(--muted); padding: 40px 0; text-align: center; }
.skeleton { height: 14px; border-radius: 6px; background: linear-gradient(90deg, var(--line) 25%, var(--card-2) 50%, var(--line) 75%); background-size: 200% 100%; animation: shimmer 1.2s infinite; }
@keyframes shimmer { from { background-position: 200% 0; } to { background-position: -200% 0; } }
@media (prefers-reduced-motion: reduce) { .skeleton { animation: none; } }
.banner { border-radius: var(--radius-sm); padding: 10px 12px; font-size: 14px; }
.banner-crit { background: var(--crit-soft); color: var(--crit); }
.banner-good { background: var(--good-soft); color: var(--good); }
.banner-warn { background: var(--warn-soft); color: var(--warn); }
.src-pill { font-size: 11px; }