:root {
  color-scheme: dark;
  --bg: #08111f;
  --panel: #111d2d;
  --panel-2: #162438;
  --text: #edf4ff;
  --muted: #a9b6ca;
  --line: #2b3d57;
  --accent: #75d0ff;
  --positive: #58d68d;
  --negative: #ff7676;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top left, #123456 0, var(--bg) 40rem);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, Segoe UI, sans-serif;
}
.shell { max-width: 1080px; margin: 0 auto; padding: 32px 20px 56px; }
.hero { display: flex; justify-content: space-between; gap: 24px; align-items: end; margin-bottom: 24px; }
.eyebrow { color: var(--accent); font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; margin: 0 0 8px; }
h1 { font-size: clamp(2rem, 5vw, 4rem); line-height: 1; margin: 0; }
h2 { margin: 0; }
.lede { color: var(--muted); margin: 12px 0 0; max-width: 700px; }
.controls, .cards { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-bottom: 18px; }
.controls { grid-template-columns: repeat(2, minmax(0, 220px)); }
label, .card, .panel { background: color-mix(in srgb, var(--panel) 88%, transparent); border: 1px solid var(--line); border-radius: 18px; box-shadow: 0 20px 60px rgb(0 0 0 / 0.22); }
label { display: grid; gap: 8px; padding: 14px; color: var(--muted); font-weight: 650; }
input { width: 100%; border: 1px solid var(--line); border-radius: 12px; background: #0c1726; color: var(--text); padding: 10px 12px; font: inherit; }
.card { padding: 18px; }
.card span { display: block; color: var(--muted); font-size: 0.9rem; margin-bottom: 8px; }
.card strong { font-size: clamp(1.2rem, 3vw, 1.8rem); }
.panel { padding: 20px; margin-top: 18px; }
.panel-header { display: flex; justify-content: space-between; gap: 16px; align-items: baseline; margin-bottom: 10px; }
.panel-header p { margin: 0; color: var(--muted); font-size: 0.9rem; text-align: right; }
.chart-wrap { position: relative; min-height: 320px; }
svg { width: 100%; height: auto; display: block; }
.axis { stroke: var(--line); stroke-width: 1.5; }
.zero { stroke: #7890ad; stroke-dasharray: 5 5; }
.pnl-line { fill: none; stroke: var(--accent); stroke-width: 3; stroke-linejoin: round; stroke-linecap: round; }
.point { stroke: #07101c; stroke-width: 2; }
.point.positive { fill: var(--positive); }
.point.negative { fill: var(--negative); }
.tick-label, .y-label { fill: var(--muted); font-size: 13px; }
.empty { position: absolute; inset: 0; display: grid; place-items: center; margin: 0; color: var(--muted); font-size: 1.1rem; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; margin-top: 14px; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 700; }
.positive-text { color: var(--positive); }
.negative-text { color: var(--negative); }
@media (max-width: 760px) {
  .controls, .cards { grid-template-columns: 1fr; }
  .panel-header { display: block; }
  .panel-header p { text-align: left; margin-top: 6px; }
}