:root {
  --bg: #0e1117; --panel: #161b26; --fg: #d7dce4; --muted: #8b93a3;
  --grid: #262d3d; --accent: #4c8dff; --warn: #e5484d; --ok: #30a46c;
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root { --bg: #f7f8fa; --panel: #ffffff; --fg: #1c2333; --muted: #5a6372; --grid: #e2e6ee; color-scheme: light; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 15px/1.5 system-ui, sans-serif; }
header { padding: 20px 24px 4px; }
h1 { margin: 0; font-size: 1.5rem; }
.sub { color: var(--muted); margin: 4px 0 0; }
main { display: grid; grid-template-columns: 320px 1fr; gap: 16px; padding: 16px 24px; align-items: start; }
@media (max-width: 900px) { main { grid-template-columns: 1fr; } }

#controls { position: sticky; top: 12px; display: flex; flex-direction: column; gap: 12px; }
#controls section, .panel { background: var(--panel); border: 1px solid var(--grid); border-radius: 10px; padding: 14px 16px; }
#controls h2, .panel h2 { margin: 0 0 10px; font-size: 0.95rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); }
label { display: block; margin: 6px 0; font-size: 0.88rem; color: var(--muted); }
label b { color: var(--fg); float: right; }
input[type=number], select { width: 100%; margin-top: 2px; padding: 5px 8px; border-radius: 6px; border: 1px solid var(--grid); background: var(--bg); color: var(--fg); font: inherit; }
input[type=range] { width: 100%; accent-color: var(--accent); }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 10px; }
.hint, .note { color: var(--muted); font-size: 0.82rem; margin: 6px 0 8px; }

#results { display: flex; flex-direction: column; gap: 16px; min-width: 0; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; }
.card { background: var(--panel); border: 1px solid var(--grid); border-radius: 10px; padding: 10px 14px; }
.card .v { font-size: 1.25rem; font-weight: 600; }
.card .v.warn { color: var(--warn); }
.card .v.ok { color: var(--ok); }
.card .k { color: var(--muted); font-size: 0.78rem; }

canvas { width: 100%; height: 300px; display: block; }
canvas.bar { height: 80px; }
canvas.bar.half { height: 66px; margin-top: 6px; }

.tablewrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 0.85rem; }
th, td { padding: 5px 10px; text-align: right; border-bottom: 1px solid var(--grid); white-space: nowrap; }
th:first-child, td:first-child { text-align: left; }
td.oom { color: var(--warn); }
footer { padding: 8px 24px 24px; color: var(--muted); font-size: 0.82rem; }
a { color: var(--accent); }