:root {
  --bg: #f6f7f9; --card: #fff; --text: #1b1f24; --muted: #6b7280; --border: #e3e6ea;
  --accent: #2563eb; --pos: #15803d; --neg: #b91c1c; --warn-bg: #fff7e0; --warn: #8a5a00;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111418; --card: #1a1e24; --text: #e6e8eb; --muted: #9aa2ad; --border: #2b313a;
    --accent: #60a5fa; --pos: #4ade80; --neg: #f87171; --warn-bg: #3a2f12; --warn: #f5c76a;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 14px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
header { background: var(--card); border-bottom: 1px solid var(--border); }
nav { display: flex; gap: 16px; align-items: center; max-width: 1200px; margin: 0 auto; padding: 12px 16px; flex-wrap: wrap; }
nav .brand { font-weight: 700; margin-right: 8px; }
nav a { color: var(--text); padding: 4px 0; border-bottom: 2px solid transparent; }
nav a.active { border-color: var(--accent); }
nav .spacer { flex: 1; }
main { max-width: 1200px; margin: 0 auto; padding: 16px; }
h1 { margin-top: 0; }
h2 { font-size: 16px; margin: 28px 0 8px; }
.muted { color: var(--muted); }
.pos { color: var(--pos); } .neg { color: var(--neg); }
.warnings { background: var(--warn-bg); color: var(--warn); border-radius: 8px; padding: 10px 14px; margin-bottom: 16px; }
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 12px; }
.tile, .card { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; }
.tile .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.tile .big { font-size: 26px; font-weight: 700; font-variant-numeric: tabular-nums; margin: 4px 0; }
.actions { display: flex; gap: 8px; margin: 16px 0 0; }
button { background: var(--accent); color: #fff; border: 0; border-radius: 6px; padding: 8px 14px; font: inherit; cursor: pointer; }
button.danger { background: var(--neg); }
table { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
th, td { text-align: left; padding: 7px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { font-size: 12px; color: var(--muted); font-weight: 600; }
td { font-variant-numeric: tabular-nums; }
td time { white-space: nowrap; }
.reason { color: var(--muted); font-size: 12px; font-style: italic; }
.pill { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 12px; background: var(--border); white-space: nowrap; }
.pill.positive { background: color-mix(in srgb, var(--pos) 20%, transparent); color: var(--pos); }
.pill.negative { background: color-mix(in srgb, var(--neg) 20%, transparent); color: var(--neg); }
.pill.err { color: var(--neg); }
.log td { font-size: 13px; padding: 4px 10px; }
.lvl-trade td { font-weight: 600; }
.lvl-error td, .lvl-warn td:last-child { color: var(--neg); }
.filters { display: flex; gap: 12px; margin-bottom: 12px; }
.filters a.active { font-weight: 700; text-decoration: underline; }
.login { max-width: 340px; margin: 10vh auto; display: flex; flex-direction: column; gap: 12px; }
label { display: flex; flex-direction: column; gap: 4px; font-weight: 600; }
input, select, textarea { font: inherit; padding: 7px 9px; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); color: var(--text); }
textarea { width: 100%; }
fieldset { background: var(--card); border: 1px solid var(--border); border-radius: 10px; margin: 0 0 16px; padding: 8px 16px 12px; }
legend { font-weight: 700; padding: 0 6px; }
.settings .field { display: grid; grid-template-columns: 260px 1fr; gap: 12px; padding: 8px 0; border-bottom: 1px solid var(--border); }
.settings .field:last-child { border-bottom: 0; }
.settings .field label { font-weight: 500; padding-top: 6px; }
.settings input:not([type=checkbox]), .settings select { width: 100%; max-width: 320px; }
.settings input[type=checkbox] { width: 18px; height: 18px; margin-top: 8px; }
.help { color: var(--muted); font-size: 12px; margin-top: 3px; }
.error { color: var(--neg); }
.ok { color: var(--pos); }
@media (max-width: 700px) {
  .settings .field { grid-template-columns: 1fr; gap: 4px; }
  table { display: block; overflow-x: auto; }
}