:root {
  color-scheme: light;
  --bg: #f4f4f1;
  --surface: #fcfcfb;
  --surface-2: #f0efec;
  --border: #e3e2dd;
  --grid: #ebeae6;
  --text: #0b0b0b;
  --text-2: #52514e;
  --text-3: #7a7974;
  --accent: #2a78d6;
  --series-1: #2a78d6;
  --series-2: #eb6834;
  --series-3: #1baf7a;
  --neg: #e34948;
  --good: #0ca30c;
  --critical: #d03b3b;
  --shadow: 0 1px 2px rgb(0 0 0 / 0.04), 0 2px 8px rgb(0 0 0 / 0.04);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #111110;
    --surface: #1a1a19;
    --surface-2: #232321;
    --border: #2e2e2b;
    --grid: #2a2a27;
    --text: #f0efec;
    --text-2: #c3c2b7;
    --text-3: #8f8e86;
    --accent: #3987e5;
    --series-1: #3987e5;
    --series-2: #d95926;
    --series-3: #199e70;
    --neg: #e66767;
    --shadow: none;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #111110;
  --surface: #1a1a19;
  --surface-2: #232321;
  --border: #2e2e2b;
  --grid: #2a2a27;
  --text: #f0efec;
  --text-2: #c3c2b7;
  --text-3: #8f8e86;
  --accent: #3987e5;
  --series-1: #3987e5;
  --series-2: #d95926;
  --series-3: #199e70;
  --neg: #e66767;
  --shadow: none;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { margin: 0; font-weight: 600; }
button { font: inherit; color: inherit; cursor: pointer; }

/* Шапка */
.top {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 18px 28px; border-bottom: 1px solid var(--border); background: var(--surface);
}
.top h1 { font-size: 22px; letter-spacing: -0.01em; }
.top p { margin: 2px 0 0; color: var(--text-2); font-size: 14px; }
.top__actions { display: flex; gap: 8px; flex-shrink: 0; }
.btn {
  border: 1px solid var(--border); background: var(--surface); border-radius: 8px;
  padding: 7px 12px; font-size: 14px; transition: background .15s;
}
.btn:hover { background: var(--surface-2); }
.btn--icon { width: 36px; padding: 7px 0; }

/* Раскладка */
.layout { display: grid; grid-template-columns: 300px 1fr; gap: 24px; padding: 24px 28px 40px; max-width: 1680px; margin: 0 auto; }
.panel {
  position: sticky; top: 16px; align-self: start;
  background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 18px; box-shadow: var(--shadow);
}
.panel__block + .panel__block { margin-top: 20px; }
.panel h2 { font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--text-3); margin-bottom: 10px; }
.panel__note { margin: 18px 0 0; font-size: 12px; color: var(--text-3); }

.segmented { display: grid; grid-template-columns: repeat(3, 1fr); background: var(--surface-2); border-radius: 9px; padding: 3px; gap: 2px; }
.segmented button { border: 0; background: transparent; padding: 6px 4px; border-radius: 7px; font-size: 13px; color: var(--text-2); }
.segmented button.is-active { background: var(--surface); color: var(--text); box-shadow: 0 1px 2px rgb(0 0 0 / .12); }

.ctl + .ctl { margin-top: 16px; }
.ctl__row { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; margin-bottom: 6px; }
.ctl__label { font-size: 13px; color: var(--text-2); }
.ctl__value { font-size: 14px; font-weight: 600; font-variant-numeric: tabular-nums; white-space: nowrap; }
.ctl input[type=range] { width: 100%; accent-color: var(--accent); margin: 0; }
.ctl__hint { font-size: 11px; color: var(--text-3); margin-top: 2px; }

/* KPI */
.kpis { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 12px; margin-bottom: 20px; }
.kpi { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; box-shadow: var(--shadow); min-width: 0; }
.kpi__label { font-size: 12px; color: var(--text-2); }
.kpi__value { font-size: 24px; font-weight: 650; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; margin-top: 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.kpi__sub { font-size: 12px; color: var(--text-3); margin-top: 2px; }
.kpi__status { font-weight: 600; }
.kpi__status--good { color: var(--good); }
.kpi__status--bad { color: var(--critical); }

/* Карточки графиков */
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 18px 18px 8px; box-shadow: var(--shadow); min-width: 0; }
.card__head { display: flex; gap: 12px; align-items: flex-start; }
.card__num {
  flex-shrink: 0; width: 26px; height: 26px; border-radius: 7px; background: var(--surface-2);
  display: grid; place-items: center; font-size: 13px; font-weight: 600; color: var(--text-2);
}
.card h3 { font-size: 16px; }
.card__kind { margin: 1px 0 0; font-size: 12px; color: var(--text-3); }
.card__insight { margin: 12px 0 0; font-size: 14px; color: var(--text-2); min-height: 2.9em; }
.card__insight b { color: var(--text); font-weight: 600; }
.chart { height: 340px; width: 100%; }

.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 20px); opacity: 0;
  background: var(--text); color: var(--bg); padding: 9px 16px; border-radius: 10px; font-size: 14px;
  transition: opacity .2s, transform .2s; pointer-events: none;
}
.toast.is-on { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 1280px) {
  .kpis { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 1080px) {
  .layout { grid-template-columns: 1fr; }
  .panel { position: static; }
  #controls { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 24px; }
  .ctl + .ctl { margin-top: 0; }
  .grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .top { padding: 14px 16px; flex-direction: column; align-items: flex-start; }
  .layout { padding: 16px; gap: 16px; }
  #controls { grid-template-columns: 1fr; }
  .kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kpi__value { font-size: 20px; }
  .chart { height: 300px; }
}