@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=IBM+Plex+Sans:wght@400;500;600&display=swap");

:root {
  --bg: #0b0d0c; --panel: #121513; --panel-2: #171b18; --line: #232925; --line-2: #2e3530;
  --text: #e4e8e3; --muted: #8a948c; --dim: #5d665f;
  --long: #2fbf71; --long-a: rgba(47, 191, 113, .16); --short: #e5484d; --short-a: rgba(229, 72, 77, .16);
  --accent: #e8b341; --info: #6aa9ff;
  --mono: "IBM Plex Mono", ui-monospace, monospace; --sans: "IBM Plex Sans", system-ui, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); font: 14px/1.45 var(--sans); }
a { color: var(--info); }
button, input, select, textarea { font: inherit; color: inherit; }
.mono, .num { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.pos { color: var(--long); } .neg { color: var(--short); } .muted { color: var(--muted); }

/* auth */
.auth { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.auth form { width: min(380px, 100%); background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 28px; }
.auth h1 { font: 600 15px var(--mono); letter-spacing: .08em; text-transform: uppercase; margin: 0 0 4px; }
.auth p.sub { color: var(--muted); margin: 0 0 22px; font-size: 13px; }
label { display: block; font-size: 12px; color: var(--muted); margin: 14px 0 6px; }
input, select, textarea { width: 100%; background: var(--bg); border: 1px solid var(--line-2); border-radius: 6px; padding: 9px 11px; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.btn { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--line-2); background: var(--panel-2); border-radius: 6px; padding: 8px 14px; cursor: pointer; }
.btn.primary { background: var(--accent); color: #17130a; border-color: var(--accent); font-weight: 600; }
.btn:hover { filter: brightness(1.12); }
.auth .btn.primary { width: 100%; justify-content: center; margin-top: 20px; }
.msg { min-height: 20px; margin-top: 12px; font-size: 13px; }
.links { display: flex; justify-content: space-between; margin-top: 14px; font-size: 13px; }

/* app shell */
header.top { display: flex; align-items: center; gap: 18px; padding: 10px 16px; border-bottom: 1px solid var(--line); position: sticky; top: 0; background: var(--bg); z-index: 5; }
.brand { font: 600 13px var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.badge { font: 600 11px var(--mono); padding: 2px 8px; border-radius: 4px; border: 1px solid var(--accent); color: var(--accent); }
.badge.off { border-color: var(--dim); color: var(--dim); }
nav.tabs { display: flex; gap: 2px; margin-left: 12px; }
nav.tabs button { background: none; border: 0; padding: 8px 12px; color: var(--muted); cursor: pointer; border-bottom: 2px solid transparent; }
nav.tabs button.on { color: var(--text); border-color: var(--accent); }
.spacer { flex: 1; }
main { padding: 16px; display: grid; gap: 16px; }
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.kpi { background: var(--panel); padding: 12px 14px; }
.kpi .k { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.kpi .v { font: 500 20px var(--mono); margin-top: 4px; font-variant-numeric: tabular-nums; }
.kpi .s { font-size: 12px; color: var(--dim); margin-top: 2px; }
.grid-chart { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 16px; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; min-width: 0; }
.panel > h3 { margin: 0; padding: 10px 14px; font: 600 12px var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); border-bottom: 1px solid var(--line); display: flex; align-items: center; gap: 8px; }
.panel .body { padding: 12px 14px; }
.toolbar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; padding: 8px 10px; border-bottom: 1px solid var(--line); }
.toolbar select { width: auto; padding: 5px 8px; }
.seg { display: inline-flex; border: 1px solid var(--line-2); border-radius: 6px; overflow: hidden; }
.seg button { background: none; border: 0; padding: 5px 10px; color: var(--muted); cursor: pointer; font: 500 12px var(--mono); }
.seg button.on { background: var(--panel-2); color: var(--text); }
.chk { display: inline-flex; gap: 5px; align-items: center; font-size: 12px; color: var(--muted); }
.chk input { width: auto; }
#chart { height: 560px; }
.legend { position: absolute; left: 12px; top: 8px; z-index: 3; font: 12px var(--mono); pointer-events: none; }
.chart-wrap { position: relative; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { color: var(--muted); font-weight: 500; font-size: 11px; text-transform: uppercase; letter-spacing: .05em; }
td.num, th.num { text-align: right; }
.scroll { max-height: 360px; overflow: auto; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.three { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.mini { height: 220px; }
.note { font-size: 12px; color: var(--muted); }
.side-long { color: var(--long); font-weight: 600; } .side-short { color: var(--short); font-weight: 600; }
.hidden { display: none !important; }
.drop { border: 1px dashed var(--line-2); border-radius: 8px; padding: 22px; text-align: center; color: var(--muted); }
.drop.over { border-color: var(--accent); color: var(--text); }
.heat td { text-align: center; font: 12px var(--mono); }
@media (max-width: 1100px) { .grid-chart, .two, .three { grid-template-columns: 1fr; } #chart { height: 440px; } }
@media (max-width: 640px) { header.top { flex-wrap: wrap; } nav.tabs { order: 3; width: 100%; overflow-x: auto; margin: 0; } main { padding: 10px; } }