:root {
  --bg: #0d1117; --panel: #161b22; --panel2: #1c232d; --line: #263040;
  --fg: #e6edf3; --mut: #8b97a7; --acc: #4c8dff; --acc2: #2ea043; --warn: #d29922;
  --radius: 12px; --max: 1180px;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: radial-gradient(1200px 500px at 70% -10%, #15203260, transparent), var(--bg);
  color: var(--fg); font: 15px/1.5 -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }

.topbar {
  display: flex; align-items: center; gap: 28px; padding: 14px 28px;
  border-bottom: 1px solid var(--line); position: sticky; top: 0; backdrop-filter: blur(8px);
  background: #0d1117cc; z-index: 10;
}
.brand { font-weight: 700; font-size: 18px; letter-spacing: .2px; }
.brand .mark { color: var(--acc); margin-right: 6px; }
.brand .sub { color: var(--mut); font-weight: 500; margin-left: 6px; font-size: 13px; }
.topbar nav { display: flex; gap: 20px; margin-left: 10px; }
.topbar nav a { color: var(--mut); font-size: 14px; padding: 6px 2px; border-bottom: 2px solid transparent; }
.topbar nav a.active, .topbar nav a:hover { color: var(--fg); border-color: var(--acc); }
.session { margin-left: auto; color: var(--mut); font-variant-numeric: tabular-nums; font-size: 13px; }

main { max-width: var(--max); margin: 0 auto; padding: 28px; }
.hero { display: flex; justify-content: space-between; align-items: flex-end; gap: 30px; flex-wrap: wrap; margin-bottom: 26px; }
.hero h1 { margin: 0 0 6px; font-size: 30px; letter-spacing: -.5px; }
.lede { color: var(--mut); margin: 0; max-width: 46ch; }
.lookup { display: flex; gap: 8px; flex-wrap: wrap; }
.lookup input { background: var(--panel); border: 1px solid var(--line); color: var(--fg); padding: 10px 12px; border-radius: 8px; min-width: 190px; }
.lookup input:focus { outline: none; border-color: var(--acc); }
.lookup button { background: var(--acc); color: #fff; border: 0; padding: 10px 18px; border-radius: 8px; font-weight: 600; cursor: pointer; }
.lookup button:hover { filter: brightness(1.08); }

.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 24px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; }
.card h3 { margin: 0 0 10px; font-size: 13px; color: var(--mut); font-weight: 500; }
.card .big { font-size: 26px; font-weight: 700; font-variant-numeric: tabular-nums; }
.delta { font-size: 12px; margin-top: 6px; color: var(--mut); }
.delta.up { color: var(--acc2); } .delta.down { color: #f85149; }

.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; margin-bottom: 22px; }
.panel-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; gap: 12px; flex-wrap: wrap; }
.panel-head h2 { margin: 0; font-size: 17px; }
.tabs { display: flex; gap: 6px; }
.tabs button { background: var(--panel2); color: var(--mut); border: 1px solid var(--line); padding: 6px 12px; border-radius: 999px; cursor: pointer; font-size: 13px; }
.tabs button.active { color: #fff; background: var(--acc); border-color: var(--acc); }
.chart-wrap { width: 100%; overflow-x: auto; }
#chart { width: 100%; height: 300px; display: block; }
.chart-note { color: var(--mut); font-size: 12px; margin: 10px 2px 0; }

#filter { background: var(--panel2); border: 1px solid var(--line); color: var(--fg); padding: 8px 12px; border-radius: 8px; }
.grid { width: 100%; border-collapse: collapse; }
.grid th, .grid td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); font-variant-numeric: tabular-nums; }
.grid th { color: var(--mut); font-weight: 500; font-size: 12px; text-transform: uppercase; letter-spacing: .4px; }
.grid tbody tr:hover { background: var(--panel2); }
.pos { color: var(--acc2); } .neg { color: #f85149; }

.about p { color: var(--mut); max-width: 70ch; }
footer { max-width: var(--max); margin: 0 auto; padding: 20px 28px 40px; display: flex; justify-content: space-between; color: var(--mut); font-size: 13px; border-top: 1px solid var(--line); }

.toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(20px); background: var(--panel2); border: 1px solid var(--line); color: var(--fg); padding: 12px 18px; border-radius: 10px; opacity: 0; transition: .25s; pointer-events: none; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

@media (max-width: 820px) { .cards { grid-template-columns: repeat(2, 1fr); } }