:root {
  --brand-1: #10b981;
  --brand-2: #0ea5e9;
  --card-bg: rgba(20, 24, 34, 0.88);
  --surface-border: rgba(148, 163, 184, 0.25);
  --text-muted-soft: #9ca3af;
}

body {
  background:
    radial-gradient(circle at 20% 20%, rgba(16, 185, 129, 0.16), transparent 35%),
    radial-gradient(circle at 82% 10%, rgba(14, 165, 233, 0.16), transparent 42%),
    radial-gradient(circle at 50% 90%, rgba(59, 130, 246, 0.14), transparent 40%),
    #0a0f1a;
  min-height: 100vh;
}

.app-shell {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: 100vh;
}

@media (max-width: 991px) {
  .app-shell {
    grid-template-columns: 1fr;
  }
}

.sidebar {
  background: linear-gradient(180deg, rgba(8, 13, 24, 0.95), rgba(6, 10, 19, 0.93));
  border-right: 1px solid var(--surface-border);
  padding: 1.5rem 1rem;
  backdrop-filter: blur(10px);
}

.brand-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(16, 185, 129, 0.22), rgba(14, 165, 233, 0.2));
  border: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.sidebar .nav-link {
  color: #cbd5e1;
  border-radius: 0.6rem;
  padding: 0.55rem 0.75rem;
  margin-bottom: 0.25rem;
}

.sidebar .nav-link:hover,
.sidebar .nav-link.active {
  background: rgba(16, 185, 129, 0.16);
  color: #ecfeff;
}

.main-pane {
  padding: 1.5rem;
}

.card.glass {
  background: var(--card-bg);
  border: 1px solid var(--surface-border);
  box-shadow: 0 12px 38px rgba(15, 23, 42, 0.35);
}

.metric-card {
  position: relative;
  overflow: hidden;
}

.metric-card::after {
  content: '';
  position: absolute;
  inset: auto -30% -45% -30%;
  height: 120px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.18), transparent 65%);
  pointer-events: none;
}

.table thead th {
  color: #cbd5e1;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.small-muted {
  color: var(--text-muted-soft);
  font-size: 0.82rem;
}

.form-text {
  color: var(--text-muted-soft);
}

pre.code-block {
  max-height: 260px;
  overflow: auto;
  background: rgba(2, 6, 23, 0.7);
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: 0.5rem;
  padding: 0.75rem;
  color: #d1d5db;
}