.sidebar {
  width: var(--sidebar-width);
  height: 100vh;
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
  transition: transform var(--transition);
}

@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
}

/* Identity */
.sidebar-identity { padding: 34px 30px 24px; }

.sidebar-logo {
  width: 40px; height: 40px;
  background: var(--color-accent);
  color: #0f0f0f;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
}

.sidebar-name {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 4px;
}

.sidebar-subtitle {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.sidebar-divider {
  height: 1px;
  background: var(--color-border);
  margin: 0 30px;
}

/* Nav */
.sidebar-nav { padding: 20px 16px; }

.nav-label {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: 0 10px;
  margin-bottom: 8px;
}

.nav-group { margin-bottom: 2px; }

.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: var(--color-text-muted);
  transition: background var(--transition), color var(--transition);
}
.nav-item:hover {
  background: var(--color-surface-2);
  color: var(--color-text-primary);
}
.nav-item.active {
  background: #f2f6fb;
  color: #0f0f0f;
  font-weight: 500;
}

.nav-icon {
  font-size: 0.8rem;
  width: 16px;
  text-align: center;
  flex-shrink: 0;
}

.nav-children { padding-left: 16px; margin-top: 2px; margin-bottom: 4px; }

.nav-child {
  display: flex; align-items: center; gap: 8px;
  padding: 5px 10px;
  font-size: 0.82rem;
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.nav-child:hover {
  color: var(--color-text-secondary);
  background: var(--color-surface-2);
}
.nav-child.active { color: #612B86; font-weight: 500; }
.nav-child-dot { color: var(--color-border); font-size: 1rem; }

/* Spacer pushes bottom links down */
.sidebar-spacer { flex: 1; }

/* Status */
.sidebar-status {
  margin-top: auto;
  padding: 16px 30px;
  border-top: 1px solid var(--color-border);
}

.status-dot-row {
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 4px;
}

.status-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--color-text-muted);
  flex-shrink: 0;
}
.status-dot.available {
  background: var(--color-green);
  box-shadow: 0 0 0 2px rgba(76,175,125,0.2);
}

.status-label {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--color-text-primary);
}

.status-location {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  padding-left: 15px;
}

/* Bottom links — pinned */
.sidebar-links {
  padding: 16px 30px 28px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-top: 1px solid var(--color-border);
}

.sidebar-link {
  display: flex; align-items: center; gap: 10px;
  font-size: 0.82rem;
  color: var(--color-text-muted);
  padding: 8px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: color var(--transition), border-color var(--transition);
}
.sidebar-link:hover {
  color: var(--color-text-secondary);
  border-color: var(--color-text-muted);
}

/* Dropdown trigger */
.nav-dropdown-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: var(--color-text-muted);
  transition: background var(--transition), color var(--transition);
  cursor: pointer;
  font-family: var(--font-sans);
}

.nav-dropdown-trigger:hover {
  background: var(--color-surface-2);
  color: var(--color-text-primary);
}

.nav-dropdown[data-open="true"] .nav-dropdown-trigger {
  color: var(--color-text-primary);
}

.nav-dropdown-label { flex: 1; text-align: left; }

.nav-dropdown-arrow {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  transition: transform 200ms ease;
  flex-shrink: 0;
}

.nav-dropdown[data-open="true"] .nav-dropdown-arrow {
  transform: rotate(180deg);
}

.nav-children {
  padding-left: 16px;
  margin-top: 2px;
  margin-bottom: 4px;
  display: none;
}

.nav-children[data-visible="true"] {
  display: block;
}

/* =====================
   HAMBURGER
   Desktop: hidden
   Mobile: fixed to top-right, sits inside the topbar row visually
   ===================== */

.hamburger {
  display: none;
  position: fixed;
  top: 8px;
  right: 12px;
  z-index: 200;
  width: 36px;
  height: 36px;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: 8px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 1px;
  background: var(--color-text-secondary);
  transition: transform 150ms ease, opacity 150ms ease;
}

.hamburger.active span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* Overlay */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 99;
}
.sidebar-overlay.visible { display: block; }

@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 100;
  }

  .hamburger { display: flex; margin-top: 5px; }
}