:root{
  --bg:#0b1220;
  --card:#121a2b;
  --text:#e9eefb;
  --muted:#a7b0c3;
  --brand:#6aa8ff;
  --ok:#34d399;
  --warn:#f59e0b;
  --err:#ef4444;
  --border: #21314f;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.container{width:min(1100px, 92%); margin:0 auto}

.site-header{
  position: sticky; top:0; z-index:50;
  backdrop-filter: saturate(160%) blur(8px);
  background: color-mix(in oklab, var(--bg) 70%, transparent);
  border-bottom:1px solid var(--border);
}
.site-header .container{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 0;
}
.brand{margin:0; font-size:1.125rem; letter-spacing:0.2px}
.nav a{
  color: var(--muted); text-decoration:none; margin-left:18px; font-size:0.95rem;
}
.nav a:hover{color:var(--text)}

.main{padding:28px 0 48px}

.card{
  background: var(--card);
  border:1px solid var(--border);
  border-radius:16px;
  padding:20px;
  margin-bottom:22px;
  box-shadow: 0 6px 18px rgba(0,0,0,0.2);
}
.card-head{display:flex; align-items:center; justify-content:space-between; gap:16px}
.card h2{margin:0; font-size:1.25rem}
.pill{
  border:1px solid var(--border);
  color:var(--muted);
  padding:6px 10px; border-radius:999px; font-size:0.8rem;
}

.kpis{display:grid; grid-template-columns:repeat(4,1fr); gap:14px; margin:14px 0 6px}
.kpi{background: #0f1729; border:1px solid var(--border); border-radius:12px; padding:12px}
.kpi-label{display:block; color:var(--muted); font-size:0.8rem}
.kpi-value{display:block; font-size:1.2rem; margin-top:4px}
.kpi-delta.positive{color:var(--ok)}
.kpi-delta.negative{color:var(--err)}

.chart-wrap{position:relative; min-height:260px}
.loader{
  position:absolute; inset:0; display:flex; align-items:center; justify-content:center;
  color:var(--muted); font-size:0.95rem; background: transparent; pointer-events:none;
}

.controls{display:flex; gap:10px; margin-top:12px}
.btn{
  background:#0f1729; color:var(--text); border:1px solid var(--border);
  padding:8px 12px; border-radius:10px; cursor:pointer; font-size:0.9rem;
}
.btn:hover{border-color:#2b4472}
.btn.active{outline:2px solid var(--brand); border-color:#3a5fa1}

.note{color:var(--muted); font-size:0.9rem}

.site-footer{
  border-top:1px solid var(--border); color:var(--muted);
  padding:16px 0; margin-top:26px; font-size:0.9rem;
}

/* Responsive */
@media (max-width: 900px){
  .kpis{grid-template-columns:repeat(2,1fr)}
}
@media (max-width: 520px){
  .kpis{grid-template-columns:1fr}
}