:root {
  --bg: #0f1419;
  --panel: #1a212b;
  --panel-2: #222b37;
  --text: #e6edf3;
  --muted: #8b98a9;
  --line: #2d3947;
  --accent: #4aa3ff;
  --pos: #3fb950;
  --neg: #f85149;
  --warn: #d29922;
  --radius: 12px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }

header {
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #141b24, var(--bg));
  padding: 28px 0 22px;
}
h1 { margin: 0; font-size: 26px; letter-spacing: -0.02em; }
.sub { margin: 6px 0 0; color: var(--muted); font-size: 14px; }

main { padding: 24px 20px 60px; }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 22px;
  margin-bottom: 18px;
}
h2 { font-size: 16px; margin: 0 0 14px; font-weight: 600; }

/* hero */
.hero { display: grid; grid-template-columns: 280px 1fr; gap: 28px; }
.hero-left { border-right: 1px solid var(--line); padding-right: 24px; }
.label { font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }
.regime { font-size: 24px; font-weight: 700; margin: 6px 0 14px; text-transform: capitalize; }
.gauge-wrap { display: flex; align-items: center; gap: 12px; }
.gauge-track { flex: 1; height: 10px; background: var(--panel-2); border-radius: 6px; overflow: hidden; }
.gauge-fill { height: 100%; width: 0; background: linear-gradient(90deg, var(--neg), var(--warn), var(--pos)); transition: width .5s; }
.gauge-num { font-variant-numeric: tabular-nums; font-weight: 700; min-width: 34px; text-align: right; }
.reco { font-size: 15px; margin: 8px 0 0; }
.reco strong { color: var(--accent); }

/* readings grid */
.grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 18px; }
.stat { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; }
.stat .k { font-size: 12px; color: var(--muted); }
.stat .v { font-size: 22px; font-weight: 700; font-variant-numeric: tabular-nums; margin-top: 4px; }
.stat .d { font-size: 12px; margin-top: 2px; }
.d.pos { color: var(--pos); } .d.neg { color: var(--neg); }

/* charts */
.chart { width: 100%; overflow: hidden; }
.chart svg { width: 100%; height: auto; display: block; }
.axis { fill: var(--muted); font-size: 10px; }
.gridline { stroke: var(--line); stroke-width: 1; }

/* tables */
table.kv { width: 100%; border-collapse: collapse; font-size: 14px; }
table.kv td { padding: 7px 6px; border-bottom: 1px solid var(--line); }
table.kv td:first-child { color: var(--muted); width: 60%; }
table.kv td:last-child { text-align: right; font-variant-numeric: tabular-nums; }
.pill { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 12px; }
.pill.ok { background: rgba(63,185,80,.15); color: var(--pos); }
.pill.warn { background: rgba(210,153,34,.15); color: var(--warn); }

.muted { color: var(--muted); font-size: 13px; }
.disclaimer { margin-top: 6px; font-style: italic; }
footer { margin-top: 8px; }
.err { color: var(--neg); }
code { background: var(--panel-2); padding: 1px 5px; border-radius: 4px; }

@media (max-width: 760px) {
  .hero { grid-template-columns: 1fr; }
  .hero-left { border-right: none; border-bottom: 1px solid var(--line); padding: 0 0 18px; }
  .grid { grid-template-columns: repeat(2, 1fr); }
}