:root { --sidebar-w: 250px; }

.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  width: var(--sidebar-w);
  background: var(--navy-dark);
  border-right: 1px solid rgba(255,255,255,0.06);
  padding: 32px 25px;
  display: flex;
  flex-direction: column;
  z-index: 30;
  overflow: hidden auto;
}
.sidebar .logo {
  font-family: 'DM Sans', Arial, sans-serif;
  font-size: 24px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 45px;
  letter-spacing: -0.02em;
}
.sidebar .logo span { color: var(--blue); }
.sidebar .nav a {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 12px 10px 10px;
  border-radius: 8px;
  margin-bottom: 6px;
  color: rgba(255,255,255,0.55);
  font-size: 16px;
  font-weight: 500;
  white-space: nowrap;
  border-left: 3px solid transparent;
  transition: all .2s ease;
  text-decoration: none;
  position: relative;
}
.sidebar .nav a:hover {
  color: rgba(255,255,255,0.9);
  background: rgba(255,255,255,0.06);
}
.sidebar .nav a.active {
  color: #fff;
  background: rgba(255,255,255,0.1);
  font-weight: 600;
  border-left: 3px solid var(--blue-bright);
}
.sidebar .nav a.active:hover { background: rgba(255,255,255,0.12); }
.sidebar .nav a svg { opacity: 0.6; flex-shrink: 0; }
.sidebar .nav a.active svg,
.sidebar .nav a:hover svg { opacity: 1; }
@media (max-width: 768px) {
  .sidebar { display: none; }
}