:root {
  --bg: #12141a; --panel: #1b1e27; --panel2: #232735;
  --text: #e6e9f0; --muted: #8b91a3; --accent: #4c8dff;
  --green: #3ecf8e; --red: #ff6b6b; --yellow: #ffd166;
  --border: #2c3040; --radius: 10px;
}
* { box-sizing: border-box; margin: 0; }
body { background: var(--bg); color: var(--text); font: 14px/1.5 -apple-system, "Segoe UI", sans-serif; }
#nav { display: flex; align-items: center; gap: 4px; padding: 10px 18px; background: var(--panel); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 5; }
#nav .brand { font-weight: 700; margin-right: 14px; }
#nav a { color: var(--muted); text-decoration: none; padding: 6px 12px; border-radius: 6px; }
#nav a.active { color: var(--text); background: var(--panel2); }
#nav .status { margin-left: auto; color: var(--muted); font-size: 12px; }
#navToggle { display: none; background: none; border: none; color: var(--text); font-size: 1.35em; cursor: pointer; padding: 2px 8px; }
@media (max-width: 860px) {
  #nav { flex-wrap: wrap; }
  #navToggle { display: block; margin-left: auto; }
  #nav a { display: none; width: 100%; }
  #nav .status { display: none; }
  #nav.open a { display: block; }
}
main { max-width: 1180px; margin: 22px auto; padding: 0 18px; }
h2 { font-size: 18px; margin-bottom: 14px; }
h3 { font-size: 14px; color: var(--muted); font-weight: 600; margin-bottom: 8px; }
.grid { display: grid; gap: 14px; }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 900px) { .grid.cols-4, .grid.cols-3, .grid.cols-2 { grid-template-columns: 1fr; } }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.kpi .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .05em; }
.kpi .value { font-size: 24px; font-weight: 700; margin-top: 4px; }
.kpi .sub { color: var(--muted); font-size: 12px; margin-top: 2px; }
.pos { color: var(--green); } .neg { color: var(--red); } .warn { color: var(--yellow); }
canvas { max-height: 300px; }
table { width: 100%; border-collapse: collapse; }
th { text-align: left; color: var(--muted); font-size: 12px; padding: 8px 10px; border-bottom: 1px solid var(--border); }
td { padding: 8px 10px; border-bottom: 1px solid var(--border); }
tr:hover td { background: var(--panel2); }
input, select, button, textarea { background: var(--panel2); color: var(--text); border: 1px solid var(--border); border-radius: 6px; padding: 7px 10px; font: inherit; }
button { cursor: pointer; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.danger { color: var(--red); }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.mt { margin-top: 14px; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px; background: var(--panel2); border: 1px solid var(--border); }
.badge.up { color: var(--green); } .badge.down { color: var(--red); }
.muted { color: var(--muted); }
.empty { color: var(--muted); text-align: center; padding: 30px; }

/* Rekomendacje — kolumnowy backlog */
.acols { display:grid; grid-template-columns:repeat(3, 1fr); gap:12px; align-items:start; }
.acol { background:#181c25; border:1px solid #242a35; border-radius:10px; padding:12px; }
.acard { background:#12151c; border:1px solid #242a35; border-radius:8px; padding:10px; margin-bottom:8px; }
.acard:last-child { margin-bottom:0; }
@media (max-width:900px) { .acols { grid-template-columns:1fr; } }
.hint { border-bottom: 1px dotted #5c6575; cursor: help; }

.cf-warn td { background: rgba(255,107,107,0.08); }