:root {
  color-scheme: light;
  --surface: #f6f6f4;
  --panel: #fcfcfb;
  --line: #dddcd7;
  --text: #0b0b0b;
  --muted: #52514e;
  --series-agent: #2a78d6;
  --series-btc: #eb6834;
  --accent: #2a78d6;
  --ok: #008300;
  --warning: #b87a00;
  --critical: #c9302f;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --surface: #111110;
    --panel: #1a1a19;
    --line: #33332f;
    --text: #f0efec;
    --muted: #c3c2b7;
    --series-agent: #3987e5;
    --series-btc: #d95926;
    --accent: #3987e5;
    --ok: #3fae5a;
    --warning: #c98500;
    --critical: #e66767;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--surface);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans Arabic", Tahoma, sans-serif;
}

h1 { margin: 0; font-size: 20px; }
h2 { margin: 0 0 12px; font-size: 15px; }

.top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}

.brand, .top-actions { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }

.badge {
  padding: 2px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}

button {
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--text);
  font: inherit;
  cursor: pointer;
}

button.danger { border-color: var(--critical); color: var(--critical); font-weight: 600; }
button.primary { width: 100%; border: 0; background: var(--accent); color: #fff; font-weight: 600; }
button:focus-visible, input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.page { max-width: 1240px; margin: 0 auto; padding: 16px 20px 40px; }

.notice {
  margin: 0 0 14px;
  padding: 10px 14px;
  border: 1px solid var(--critical);
  border-radius: 8px;
  background: var(--panel);
}

.tiles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

.tile, .panel {
  padding: 16px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
}

.tile { display: flex; flex-direction: column; gap: 2px; }
.label, .note { color: var(--muted); font-size: 13px; }
.number, .ltr { direction: ltr; unicode-bidi: isolate; }
[dir="rtl"] .number { text-align: end; }
.number { font-size: 28px; font-weight: 650; font-variant-numeric: tabular-nums; }
.note { margin: 2px 0; }

.legend { display: flex; gap: 18px; margin: 0 0 8px; padding: 0; list-style: none; font-size: 13px; }
.legend li { display: flex; align-items: center; gap: 6px; color: var(--muted); }
.key { width: 14px; height: 3px; border-radius: 2px; }
.key-agent { background: var(--series-agent); }
.key-btc { background: var(--series-btc); }

.chart-wrap { position: relative; direction: ltr; }
.chart { display: block; width: 100%; height: auto; touch-action: pan-y; }
.grid { stroke: var(--line); stroke-width: 1; }
.axis, .end-label { fill: var(--muted); font-size: 11px; }
.end-label { fill: var(--text); font-weight: 600; }
.line { fill: none; stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.line-agent { stroke: var(--series-agent); }
.line-btc { stroke: var(--series-btc); }
.crosshair { stroke: var(--muted); stroke-width: 1; stroke-dasharray: 3 3; }

.tip {
  position: absolute;
  top: 8px;
  left: var(--tip-x, 0);
  transform: translateX(12px);
  min-width: 170px;
  padding: 8px 10px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  pointer-events: none;
}

.tip-left { transform: translateX(calc(-100% - 12px)); }

.columns {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(280px, 1fr);
  gap: 14px;
  margin-top: 14px;
  align-items: start;
}

.side { display: grid; gap: 14px; }

.action { padding: 12px 0; border-top: 1px solid var(--line); }
.action:first-of-type { border-top: 0; padding-top: 0; }
.action header { display: flex; justify-content: space-between; gap: 10px; margin-bottom: 6px; }
.action time { color: var(--muted); font-size: 12px; }

.lang-link { color: var(--text); font-size: 14px; text-decoration: none; padding: 8px 10px; }
.login .lang-link { display: inline-block; padding: 0; margin-top: 14px; color: var(--muted); }
.kind { font-size: 12px; font-weight: 700; letter-spacing: 0.03em; }
.kind-bought, .kind-resumed { color: var(--ok); }
.kind-sold { color: var(--accent); }
.kind-blocked { color: var(--warning); }
.kind-paused { color: var(--critical); }
.kind-skipped { color: var(--muted); }

dl { display: grid; grid-template-columns: 110px minmax(0, 1fr); gap: 2px 10px; margin: 0; }
dt { color: var(--muted); font-size: 13px; }
dd { margin: 0; overflow-wrap: anywhere; }

.meter { margin-bottom: 12px; }
.meter-text { display: flex; justify-content: space-between; gap: 10px; font-size: 13px; }
progress { width: 100%; height: 8px; accent-color: var(--ok); }
progress.state-warning { accent-color: var(--warning); }
progress.state-critical { accent-color: var(--critical); }

.open-trade { display: grid; gap: 1px; padding: 8px 0; border-top: 1px solid var(--line); font-size: 14px; }
.open-trade:first-of-type { border-top: 0; padding-top: 0; }
.lesson { margin: 0 0 8px; }
.health { margin: 0; font-weight: 600; }
.empty { margin: 0; color: var(--muted); }

.login { max-width: 360px; margin: 12vh auto 0; padding: 24px; background: var(--panel);
         border: 1px solid var(--line); border-radius: 12px; }
.login h1 { margin-bottom: 16px; }
.login label { display: block; margin: 12px 0 4px; font-size: 14px; }
.login input { width: 100%; padding: 9px 10px; border: 1px solid var(--line); border-radius: 8px;
               background: var(--surface); color: var(--text); font: inherit; }
.login button { margin-top: 18px; }
.form-error { margin: 0; color: var(--critical); }

@media (max-width: 860px) {
  .columns { grid-template-columns: minmax(0, 1fr); }
  .page, .top { padding-left: 16px; padding-right: 16px; }
  dl { grid-template-columns: minmax(0, 1fr); }
  dd { margin-bottom: 4px; }
}