:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --surface-2: #f0f2f5;
  --border: #e3e6eb;
  --text: #16191f;
  --muted: #6b7280;
  --accent: #2f6fed;
  --accent-soft: #e6eefd;
  --pos: #0f8a5f;
  --pos-soft: #e3f5ec;
  --neg: #d23c3c;
  --neg-soft: #fbe7e7;
  --warn: #b7791f;
  --warn-soft: #fdf3e1;
  --shadow: 0 1px 2px rgba(16, 24, 40, .05);
  --radius: 10px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1216;
    --surface: #171b21;
    --surface-2: #1e232b;
    --border: #2a303a;
    --text: #e6e8eb;
    --muted: #9aa3af;
    --accent: #6b9bff;
    --accent-soft: #1d2a45;
    --pos: #3ccf91;
    --pos-soft: #12301f;
    --neg: #ff6b6b;
    --neg-soft: #3a1a1a;
    --warn: #f0b44c;
    --warn-soft: #3a2c12;
    --shadow: none;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--text); font: 14px/1.5 var(--font); -webkit-font-smoothing: antialiased; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 22px; margin: 0; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
h2 { font-size: 15px; margin: 0; }
h3 { font-size: 13px; margin: 18px 0 6px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .04em; }
code { font-family: var(--mono); font-size: 12px; background: var(--surface-2); padding: 1px 4px; border-radius: 4px; }

/* ---------- layout */
.shell { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.nav { background: var(--surface); border-right: 1px solid var(--border); padding: 20px 14px; position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; gap: 18px; }
.brand { font-weight: 700; font-size: 16px; color: var(--text); white-space: nowrap; display: flex; align-items: center; gap: 8px; }
.brand:hover { text-decoration: none; }
.logo { color: var(--accent); }
.tag { font-size: 11px; font-weight: 600; color: var(--warn); background: var(--warn-soft); border-radius: 999px; padding: 1px 8px; }
.nav nav { display: flex; flex-direction: column; gap: 2px; }
.nav nav a { color: var(--text); padding: 8px 10px; border-radius: 8px; }
.nav nav a:hover { background: var(--surface-2); text-decoration: none; }
.nav nav a.on { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.logout { margin-top: auto; }
main { padding: 24px 28px 40px; min-width: 0; }
.page-head { margin-bottom: 18px; }
.sub { color: var(--muted); margin: 4px 0 0; }
.foot { color: var(--muted); font-size: 12px; margin-top: 28px; text-align: center; }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; box-shadow: var(--shadow); margin-bottom: 16px; min-width: 0; }
.card-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 12px; flex-wrap: wrap; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid2.wide-left { grid-template-columns: 1.6fr 1fr; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid2 > .card, .grid3 > .card { margin-bottom: 0; }
.grid2, .grid3 { margin-bottom: 16px; }

/* ---------- KPIs */
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; margin-bottom: 16px; }
.kpis.six { grid-template-columns: repeat(3, 1fr); }
.kpi { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; box-shadow: var(--shadow); }
.kpi-label { color: var(--muted); font-size: 12px; }
.kpi-value { font-size: 21px; font-weight: 700; margin-top: 2px; font-variant-numeric: tabular-nums; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.kpi-hint { color: var(--muted); font-size: 12px; margin-top: 2px; }

/* ---------- tables */
.table-wrap { overflow-x: auto; }
.table-wrap.scroll-y { max-height: 560px; overflow-y: auto; }
.tbl { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
.tbl th { text-align: left; font-size: 12px; color: var(--muted); font-weight: 600; padding: 8px 10px; border-bottom: 1px solid var(--border); white-space: nowrap; position: sticky; top: 0; background: var(--surface); }
.tbl td { padding: 9px 10px; border-bottom: 1px solid var(--border); white-space: nowrap; }
.tbl.compact td { padding: 6px 10px; }
.tbl tbody tr:hover { background: var(--surface-2); }
.tbl tr:last-child td { border-bottom: 0; }
.num, .tbl th.num { text-align: right; }
.center { text-align: center; }

/* ---------- bits */
.pos { color: var(--pos); }
.neg { color: var(--neg); }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.badge { display: inline-block; font-size: 11px; font-weight: 600; padding: 1px 7px; border-radius: 999px; background: var(--surface-2); color: var(--muted); vertical-align: middle; }
.badge.long, .badge.ok { background: var(--pos-soft); color: var(--pos); }
.badge.short, .badge.veto, .badge.err { background: var(--neg-soft); color: var(--neg); }
.badge.strat { background: var(--accent-soft); color: var(--accent); }
.badge.open { background: var(--warn-soft); color: var(--warn); }
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 4px; vertical-align: middle; }
.dot.ok { background: var(--pos); }
.dot.bad { background: var(--neg); }
.banner { border-radius: var(--radius); padding: 10px 14px; margin-bottom: 16px; }
.banner.warn { background: var(--warn-soft); color: var(--warn); }
.banner.ok { background: var(--pos-soft); color: var(--pos); }
.alert { background: var(--neg-soft); color: var(--neg); padding: 8px 12px; border-radius: 8px; }
.alerts { margin: 0 0 10px; padding-left: 18px; color: var(--neg); }
.facts { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; margin: 0; }
.facts dt { color: var(--muted); }
.facts dd { margin: 0; min-width: 0; overflow-wrap: anywhere; }
.bar { display: inline-block; width: 70px; height: 6px; background: var(--surface-2); border-radius: 3px; overflow: hidden; vertical-align: middle; }
.bar span { display: block; height: 100%; background: var(--accent); }
.reasoning { margin: 12px 0 0; padding: 10px 14px; border-left: 3px solid var(--accent); background: var(--surface-2); border-radius: 0 8px 8px 0; }
.explain { margin-top: 14px; color: var(--muted); }
.explain ul { padding-left: 18px; margin: 6px 0; }
.price-now { font-size: 20px; font-weight: 700; margin-bottom: 8px; font-variant-numeric: tabular-nums; }

/* ---------- charts */
.chart-box { position: relative; height: 240px; }
.chart-box.tall { height: 320px; }

/* ---------- tabs, filters, forms */
.tabs { display: flex; gap: 4px; margin-bottom: 16px; flex-wrap: wrap; }
.tabs.inline { margin: 0; }
.tabs a { padding: 6px 12px; border-radius: 8px; color: var(--muted); background: var(--surface); border: 1px solid var(--border); }
.tabs a.on { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); font-weight: 600; }
.tabs a:hover { text-decoration: none; }
.filters { display: flex; flex-wrap: wrap; gap: 10px 14px; align-items: flex-end; }
.filters label { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--muted); }
.filter-actions { display: flex; gap: 8px; flex-wrap: wrap; }
input, select { font: inherit; color: var(--text); background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 7px 10px; min-width: 0; }
input:focus, select:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }
.form { display: flex; flex-direction: column; gap: 6px; }
.form label { font-size: 12px; color: var(--muted); margin-top: 6px; }
.btn { font: inherit; font-weight: 600; background: var(--accent); color: #fff; border: 0; border-radius: 8px; padding: 8px 14px; cursor: pointer; display: inline-block; }
.btn:hover { filter: brightness(1.05); text-decoration: none; }
.btn.ghost { background: transparent; color: var(--accent); border: 1px solid var(--border); }
.form .btn { margin-top: 10px; }
button.link { background: none; border: 0; color: var(--muted); cursor: pointer; font: inherit; padding: 8px 10px; }
button.link:hover { color: var(--neg); }
.pager { display: flex; justify-content: center; gap: 16px; margin-top: 12px; }

/* ---------- AI list */
.ai-list { max-height: 720px; overflow-y: auto; }
.ai-item { padding: 10px 0; border-bottom: 1px solid var(--border); }
.ai-item:last-child { border-bottom: 0; }
.ai-item p { margin: 6px 0 0; }
.ai-meta { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

/* ---------- login */
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login { width: 100%; max-width: 360px; display: flex; flex-direction: column; gap: 8px; padding: 28px; }
.login .brand { font-size: 20px; margin-bottom: 4px; }
.login label { font-size: 12px; color: var(--muted); margin-top: 6px; }
.login .btn { margin-top: 10px; padding: 10px; }

/* ---------- responsive */
@media (max-width: 1100px) {
  .grid3 { grid-template-columns: 1fr 1fr; }
  .grid2.wide-left { grid-template-columns: 1fr; }
}
@media (max-width: 860px) {
  .shell { grid-template-columns: 1fr; }
  .nav { position: sticky; top: 0; z-index: 10; height: auto; flex-direction: row; align-items: center; padding: 10px 16px; border-right: 0; border-bottom: 1px solid var(--border); gap: 12px; overflow-x: auto; }
  .nav .tag { display: none; }
  .nav nav { flex-direction: row; gap: 2px; }
  .nav nav a { white-space: nowrap; padding: 6px 10px; }
  .logout { margin: 0 0 0 auto; }
  main { padding: 16px 16px 32px; }
  .grid2, .grid3 { grid-template-columns: 1fr; }
  .kpis, .kpis.six { grid-template-columns: 1fr 1fr; }
  .kpi-value { font-size: 18px; }
  .chart-box.tall { height: 260px; }
}