/* ═══════════════════════════════════════════ css/sidebar.css */

.sidebar {
  position: fixed; top: 0; left: 0;
  width: var(--sidebar-w); height: 100vh;
  background: var(--c-sidebar-bg);
  display: flex; flex-direction: column;
  z-index: 200;
  transition: width var(--transition), transform var(--transition);
  overflow: hidden;
}

/* Brand */
.sidebar-brand {
  display: flex; align-items: center; gap: 12px;
  padding: 18px 16px;
  border-bottom: 1px solid rgba(255,255,255,.07);
  flex-shrink: 0;
}
.sidebar-logo {
  width: 40px; height: 40px; border-radius: 9px;
  background: none;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; overflow: hidden;
}
.sidebar-logo svg { width: 40px; height: 40px; border-radius: 9px; }
.brand-title {
  font-size: 1rem; font-weight: 800; color: var(--c-sidebar-text-hi);
  white-space: nowrap; letter-spacing: -.3px;
}
.brand-sub {
  font-size: .68rem; color: var(--c-sidebar-text);
  display: block; letter-spacing: .3px;
}

/* Nav */
.sidebar-nav {
  flex: 1; padding: 12px 10px; overflow-y: auto;
  display: flex; flex-direction: column; gap: 2px;
}
.nav-section-label {
  font-size: .68rem; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; color: var(--c-sidebar-label);
  padding: 12px 8px 6px;
  white-space: nowrap; overflow: hidden;
}
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 10px; border-radius: var(--radius-sm);
  color: var(--c-sidebar-text); font-size: .875rem; font-weight: 500;
  transition: background var(--transition), color var(--transition);
  white-space: nowrap; overflow: hidden;
}
.nav-item svg { flex-shrink: 0; }
.nav-item span { overflow: hidden; text-overflow: ellipsis; }
.nav-item:hover  { background: var(--c-sidebar-hover); color: var(--c-sidebar-text-hi); }
.nav-item.active { background: var(--c-sidebar-active); color: #fff; }

/* Footer */
.sidebar-footer {
  padding: 14px 16px;
  border-top: 1px solid rgba(255,255,255,.07);
  flex-shrink: 0;
}
.sidebar-footer-info {
  display: flex; align-items: center; gap: 8px;
  font-size: .78rem; color: var(--c-sidebar-text);
}
.status-dot {
  width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0;
}
.status-dot.online  { background: var(--c-success); }
.status-dot.offline { background: var(--c-danger);  }

/* Collapsed state */
.sidebar.collapsed {
  width: 60px;
}
.sidebar.collapsed .sidebar-brand-text,
.sidebar.collapsed .nav-section-label,
.sidebar.collapsed .nav-item span,
.sidebar.collapsed .sidebar-footer-info span {
  display: none;
}
.sidebar.collapsed + .main-wrapper {
  margin-left: 60px;
}
.sidebar.collapsed .sidebar-brand { padding: 18px 11px; }
.sidebar.collapsed .nav-item { padding: 9px; justify-content: center; }
.sidebar.collapsed .sidebar-logo { margin: 0 auto; }