.sidebar {
  width: 204px; min-width: 204px;
  background: var(--sidebar);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  z-index: 10; position: relative;
  padding: 0 0 16px 0;
}
.logo {
  display: flex; align-items: center; gap: 11px;
  padding: 18px 16px 20px;
  border-bottom: 1px solid var(--border);
}
.logo-icon {
  flex-shrink: 0;
  filter: drop-shadow(0 0 6px rgba(75,142,240,0.35));
  animation: logoPulse 4s ease-in-out infinite;
}
@keyframes logoPulse {
  0%,100% { filter: drop-shadow(0 0 6px rgba(75,142,240,0.3)); }
  50%      { filter: drop-shadow(0 0 14px rgba(122,181,255,0.5)); }
}
.logo-text {
  font-size: 17px; font-weight: 700; letter-spacing: 0.3px;
  background: linear-gradient(90deg, #1a2340 50%, var(--primary));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.nav { flex: 1; padding: 14px 10px; display: flex; flex-direction: column; gap: 2px; }
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: 10px;
  font-size: 13.5px; font-weight: 500;
  cursor: pointer; transition: all 0.18s;
  color: var(--muted);
  position: relative; overflow: hidden;
}
.nav-item:hover { background: rgba(75,142,240,0.07); color: var(--text); }
.nav-item.active {
  background: linear-gradient(135deg, rgba(37,99,200,0.18), rgba(75,142,240,0.09));
  color: var(--primary2);
  border: 1px solid rgba(75,142,240,0.18);
}
.nav-item.active .nav-glow {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at left center, rgba(37,99,200,0.08), transparent 70%);
}
.nav-icon { width: 16px; height: 16px; flex-shrink: 0; }
.sidebar-bottom {
  display: flex; flex-direction: column;
  border-top: 1px solid var(--border);
}
.sidebar-bottom-nav {
  padding: 8px 10px 4px;
}
.sidebar-footer {
  padding: 10px 16px 14px;
  font-size: 11px; color: var(--muted);
}
.sidebar-footer .sf-stat { font-size: 13px; font-weight: 600; color: var(--text); }