:root {
  --bg: #f6f7f9; --card: #fff; --ink: #1c2430; --muted: #68727f;
  --line: #e3e7ec; --accent: #2563eb; --good: #1a7f4b; --bad: #c0392b; --warn: #b45309;
}
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.45 -apple-system, "Segoe UI", Roboto, sans-serif;
       background: var(--bg); color: var(--ink); }
nav { display: flex; gap: 18px; align-items: center; padding: 10px 22px;
      background: #101826; color: #dfe6ef; flex-wrap: wrap; }
nav .brand { font-weight: 700; letter-spacing: .4px; margin-right: 8px; }
nav a { color: #dfe6ef; text-decoration: none; opacity: .85; }
nav a:hover { opacity: 1; text-decoration: underline; }
nav form.inline { margin-left: auto; }
button.linklike { background: none; border: 0; color: #9fb3cc; cursor: pointer; font: inherit; }
main { max-width: 1180px; margin: 24px auto 60px; padding: 0 22px; }
footer { text-align: center; color: var(--muted); font-size: 12px; padding: 18px; }
h1 { font-size: 24px; margin: 6px 0 18px; }
h2 { font-size: 17px; margin: 26px 0 10px; }
.muted { color: var(--muted); font-weight: 400; font-size: 0.85em; }
.error { background: #fdecea; color: var(--bad); padding: 10px 14px; border-radius: 8px; }
.delta-note { background: #eef4ff; padding: 8px 14px; border-radius: 8px; }
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; margin: 14px 0 8px; }
.tile { background: var(--card); border: 1px solid var(--line); border-radius: 12px;
        padding: 14px 16px; text-decoration: none; color: inherit; display: block; }
a.tile:hover { border-color: var(--accent); }
.tile .k { display: block; font-size: 22px; font-weight: 700; }
.tile .l { display: block; color: var(--muted); font-size: 12.5px; margin-top: 3px; }
.tile.good .k { color: var(--good); } .tile.bad .k { color: var(--bad); }
.tiles.small .tile .k { font-size: 18px; }
.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
@media (max-width: 860px) { .cols { grid-template-columns: 1fr; } }
table { border-collapse: collapse; width: 100%; background: var(--card);
        border: 1px solid var(--line); border-radius: 10px; overflow: hidden; margin: 8px 0 18px; }
th, td { padding: 7px 12px; text-align: left; border-bottom: 1px solid var(--line); font-size: 14px; }
th { background: #eef1f5; font-weight: 600; }
tr:last-child td { border-bottom: 0; }
td.r, th.r { text-align: right; font-variant-numeric: tabular-nums; }
table.kv td:first-child { color: var(--muted); width: 55%; }
.row-bad td:first-child { border-left: 3px solid var(--bad); }
.row-good td:first-child { border-left: 3px solid var(--good); }
.warn { color: var(--warn); font-weight: 600; }
.neg { color: var(--bad); }
.drill { font-size: 13px; font-weight: 400; margin-left: 10px; }
.chartbox { background: var(--card); border: 1px solid var(--line); border-radius: 10px;
            padding: 14px; margin-bottom: 8px; height: 280px; position: relative; }
.filters { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
input, select, button { font: inherit; padding: 7px 10px; border: 1px solid var(--line); border-radius: 8px; }
button { background: var(--accent); color: #fff; border: 0; cursor: pointer; }
button:hover { filter: brightness(1.08); }
.btn-plain { background: none; color: var(--accent); border: 1px solid var(--line);
             padding: 7px 10px; border-radius: 8px; text-decoration: none; display: inline-block; }
.login-box { max-width: 360px; margin: 8vh auto; background: var(--card);
             border: 1px solid var(--line); border-radius: 14px; padding: 28px; }
.login-box label { display: block; margin: 12px 0; }
.login-box input { width: 100%; margin-top: 4px; }
.login-box button { width: 100%; margin-top: 10px; }
.mono { font-family: ui-monospace, monospace; font-size: 12.5px; }