:root {
  --bg-elevated: #162233;
  --header-bg: #1a2d45;
  --border-subtle: #1a2740;
  --border-active: #253550;
  --text-faint: #283348;
  --accent-glow: rgba(91, 138, 240, 0.25);
  --accent-amber: #d4943a;
  --accent-amber-dim: rgba(212, 148, 58, 0.08);
  --accent-amber-glow: rgba(212, 148, 58, 0.25);
  --accent-cyan-dim: rgba(50, 184, 198, 0.08);
  --accent-cyan-glow: rgba(50, 184, 198, 0.25);
  --accent-rose-dim: rgba(199, 80, 112, 0.08);
  --accent-rose-glow: rgba(199, 80, 112, 0.25);
  --sidebar-w: 265px;
  --sidebar-collapsed-w: 56px;
}

.sidebar {
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  background: var(--bg-deep);
  border-right: 1px solid var(--border-dim);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: width 0.25s ease, min-width 0.25s ease;
}

.sidebar::after {
  content: '';
  position: absolute;
  left: 32px;
  top: 148px;
  bottom: 74px;
  width: 1px;
  background: linear-gradient(
    180deg,
    transparent 0%,
    var(--border-subtle) 5%,
    var(--border-subtle) 95%,
    transparent 100%
  );
  pointer-events: none;
  z-index: 1;
}

.sidebar-header {
  padding: 24px 20px 18px;
  position: relative;
  z-index: 2;
}

.logo-block {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}

.logo-mark {
  width: 42px;
  height: 42px;
  position: relative;
  flex-shrink: 0;
}

.logo-mark svg {
  width: 100%;
  height: 100%;
}

.logo-text h1 {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 1.6px;
  color: var(--text);
  line-height: 1;
  text-transform: lowercase;
}

.logo-text h1 span {
  color: var(--accent);
}

.logo-text p {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 1.1px;
  color: var(--text-muted);
  margin-top: 4px;
  text-transform: uppercase;
}

.sidebar-status {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  margin: 0 12px 8px;
  background: var(--bg-surface);
  border-radius: 6px;
  border: 1px solid var(--border-dim);
  position: relative;
  z-index: 2;
}

.sidebar-status .status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-muted);
  flex-shrink: 0;
}

.sidebar-status .status-dot.green {
  background: var(--accent-green);
  box-shadow: 0 0 6px rgba(58, 173, 107, 0.7);
}

.sidebar-status .status-text {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1px;
  color: var(--text-muted);
  text-transform: uppercase;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sidebar-nav {
  padding: 0;
  overflow: hidden;
}

.nav-section {
  flex: 1;
  padding: 8px 0;
  overflow-y: auto;
  position: relative;
  z-index: 2;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.nav-label {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 400;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--text-faint);
  padding: 16px 20px 8px 52px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 0 12px;
  margin: 2px 0;
  cursor: pointer;
  position: relative;
  transition: all 0.2s ease;
  color: inherit;
  text-decoration: none;
  border: 0;
  width: 100%;
  background: transparent;
  font-family: var(--font-ui);
  text-align: left;
}

.sidebar-link.nav-item,
.sidebar-link.nav-item:hover,
.sidebar-link.nav-item.active,
.sidebar-group-btn.nav-item,
.sidebar-group-btn.nav-item:hover,
.sidebar-group-btn.nav-item.active,
.sidebar-admin-btn.nav-item,
.sidebar-admin-btn.nav-item:hover,
.sidebar-admin-btn.nav-item.active {
  border-left: 0;
  border-radius: 0;
  height: auto;
  margin: 2px 0;
  background: transparent;
  color: inherit;
  width: 100%;
  padding: 0 12px;
}

.sidebar-sublink.nav-sub-item,
.sidebar-sublink.nav-sub-item:hover,
.sidebar-sublink.nav-sub-item.active {
  border-left: 0;
  border-radius: 0;
  height: auto;
  margin: 0;
  background: transparent;
}

.nav-item .node-dot {
  position: absolute;
  left: 29px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  border: 1.5px solid var(--border-subtle);
  background: var(--bg-deep);
  z-index: 3;
  transition: all 0.25s ease;
}

.nav-item:hover .node-dot {
  border-color: var(--accent);
  background: var(--accent-dim);
  box-shadow: 0 0 8px var(--accent-glow);
}

.nav-item.active .node-dot {
  border-color: var(--accent);
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}

.nav-item-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px 10px 28px;
  border-radius: 8px;
  width: 100%;
  transition: all 0.2s ease;
}

.nav-item:hover .nav-item-inner {
  background: var(--accent-dim);
}

.nav-item.active .nav-item-inner {
  background: var(--accent-dim);
}

.nav-icon {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  border: 1px solid var(--border-dim);
  background: var(--bg-surface);
  flex-shrink: 0;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}

.nav-icon .nav-i {
  width: 18px;
  height: 18px;
  opacity: 1;
}

.nav-item:hover .nav-icon {
  border-color: var(--border-active);
  background: var(--bg-elevated);
}

.nav-item.active .nav-icon {
  border-color: rgba(91, 138, 240, 0.3);
  background: var(--accent-dim);
}

.nav-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
}

.nav-text .label {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text-dim);
  transition: color 0.2s ease;
  letter-spacing: 0.3px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nav-item:hover .nav-text .label,
.nav-item.active .nav-text .label {
  color: var(--text);
}

.nav-text .sublabel {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.8px;
  color: var(--text-faint);
  text-transform: uppercase;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nav-item:hover .nav-text .sublabel,
.nav-item.active .nav-text .sublabel {
  color: var(--text-dim);
}

.nav-chevron {
  width: 16px;
  height: 16px;
  opacity: 0;
  transition: all 0.2s ease;
  color: var(--text-muted);
  flex-shrink: 0;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.nav-item:hover .nav-chevron {
  opacity: 0.6;
}

.nav-item.active .nav-chevron {
  opacity: 0.8;
  color: var(--accent);
}

.nav-chevron.expanded {
  transform: rotate(90deg);
}

.nav-item[data-color="amber"]:hover .node-dot,
.nav-item[data-color="amber"].active .node-dot {
  border-color: var(--accent-amber);
}

.nav-item[data-color="amber"]:hover .nav-item-inner,
.nav-item[data-color="amber"].active .nav-item-inner {
  background: var(--accent-amber-dim);
}

.nav-item[data-color="amber"].active .nav-icon {
  border-color: rgba(212, 148, 58, 0.3);
  background: var(--accent-amber-dim);
}

.nav-item[data-color="amber"].active .nav-chevron {
  color: var(--accent-amber);
}

.nav-item[data-color="cyan"]:hover .node-dot,
.nav-item[data-color="cyan"].active .node-dot {
  border-color: var(--accent-cyan);
}

.nav-item[data-color="cyan"]:hover .nav-item-inner,
.nav-item[data-color="cyan"].active .nav-item-inner {
  background: var(--accent-cyan-dim);
}

.nav-item[data-color="cyan"].active .nav-icon {
  border-color: rgba(50, 184, 198, 0.3);
  background: var(--accent-cyan-dim);
}

.nav-item[data-color="cyan"].active .nav-chevron {
  color: var(--accent-cyan);
}

.nav-item[data-color="rose"]:hover .node-dot,
.nav-item[data-color="rose"].active .node-dot {
  border-color: var(--accent-rose);
}

.nav-item[data-color="rose"]:hover .nav-item-inner,
.nav-item[data-color="rose"].active .nav-item-inner {
  background: var(--accent-rose-dim);
}

.nav-item[data-color="rose"].active .nav-icon {
  border-color: rgba(199, 80, 112, 0.3);
  background: var(--accent-rose-dim);
}

.nav-item[data-color="rose"].active .nav-chevron {
  color: var(--accent-rose);
}

.nav-sub-menu {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.nav-sub-menu.expanded {
  max-height: 420px;
}

.nav-sub-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 20px 7px 86px;
  cursor: pointer;
  transition: all 0.15s ease;
  position: relative;
  text-decoration: none;
}

.nav-sub-item::before {
  content: '';
  position: absolute;
  left: 32px;
  width: 1px;
  top: 0;
  bottom: 0;
  background: var(--border-dim);
}

.nav-sub-item .sub-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-faint);
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.nav-sub-item span {
  font-size: 12.5px;
  font-weight: 400;
  color: var(--text-muted);
  transition: color 0.15s ease;
  letter-spacing: 0.2px;
}

.nav-sub-item:hover span {
  color: var(--text-dim);
}

.nav-sub-item:hover .sub-dot {
  background: var(--text-dim);
}

.nav-sub-item.active span {
  color: var(--accent);
}

.nav-sub-item.active .sub-dot {
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent-glow);
}

.sidebar-admin {
  padding-top: 2px;
  padding-bottom: 0;
}

.sidebar-admin .nav-label {
  padding-top: 12px;
}

.sidebar-footer {
  padding: 12px;
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 8px;
  border-top: 0;
}

.version-block {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex: 1;
  padding: 12px 14px;
  background: var(--bg-surface);
  border-radius: 8px;
  border: 1px solid var(--border-dim);
  gap: 8px;
  min-width: 0;
}

.sidebar-footer-link {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1px;
  color: var(--text-muted);
  text-transform: uppercase;
  text-decoration: none;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sidebar-footer-link:hover {
  color: var(--text-dim);
}

.sidebar-version {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.5px;
  color: var(--text-faint);
  flex-shrink: 0;
}

.sidebar-collapse-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-dim);
  color: var(--text-muted);
  cursor: pointer;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.sidebar-collapse-btn svg {
  width: 16px;
  height: 16px;
}

.sidebar-collapse-btn:hover {
  background: var(--bg-elevated);
  border-color: var(--border-active);
  color: var(--text);
}

.sidebar .demo-badge {
  margin-left: auto;
  font-size: 9px;
  line-height: 1;
  font-family: var(--font-mono);
  letter-spacing: 0.7px;
  color: var(--accent-cyan);
  border: 1px solid rgba(50, 184, 198, 0.45);
  padding: 3px 5px;
  border-radius: 999px;
  background: rgba(50, 184, 198, 0.08);
}

@keyframes node-ping {
  0% {
    transform: scale(1);
    opacity: 0.6;
  }

  100% {
    transform: scale(2.5);
    opacity: 0;
  }
}

.nav-item.active .node-dot::after {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 50%;
  border: 1px solid var(--accent);
  animation: node-ping 2s ease-out infinite;
}

.nav-item {
  opacity: 0;
  transform: translateX(-12px);
  animation: nav-slide-in 0.4s ease forwards;
}

.nav-item:nth-child(2) {
  animation-delay: 0.1s;
}

.nav-item:nth-child(3) {
  animation-delay: 0.15s;
}

.nav-item:nth-child(4) {
  animation-delay: 0.2s;
}

.nav-item:nth-child(5) {
  animation-delay: 0.25s;
}

.nav-item:nth-child(6) {
  animation-delay: 0.3s;
}

.nav-item:nth-child(7) {
  animation-delay: 0.35s;
}

.nav-item:nth-child(8) {
  animation-delay: 0.4s;
}

.nav-label {
  opacity: 0;
  animation: nav-fade-in 0.4s ease forwards;
}

.sidebar-status {
  opacity: 0;
  animation: nav-fade-in 0.5s ease 0.35s forwards;
}

.sidebar-footer {
  opacity: 0;
  animation: nav-fade-in 0.5s ease 0.45s forwards;
}

@keyframes nav-slide-in {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes nav-fade-in {
  to {
    opacity: 1;
  }
}

.sidebar.collapsed {
  width: var(--sidebar-collapsed-w);
  min-width: var(--sidebar-collapsed-w);
}

html.sidebar-collapsed-init .sidebar {
  width: var(--sidebar-collapsed-w);
  min-width: var(--sidebar-collapsed-w);
}

.sidebar.collapsed::after {
  display: none;
}

html.sidebar-collapsed-init .sidebar::after {
  display: none;
}

.sidebar.collapsed .logo-text,
.sidebar.collapsed .sidebar-status .status-text,
.sidebar.collapsed .nav-label,
.sidebar.collapsed .node-dot,
.sidebar.collapsed .nav-text,
.sidebar.collapsed .nav-chevron,
.sidebar.collapsed .version-block .sidebar-footer-link,
.sidebar.collapsed .version-block .sidebar-version {
  display: none;
}

html.sidebar-collapsed-init .sidebar .logo-text,
html.sidebar-collapsed-init .sidebar .sidebar-status .status-text,
html.sidebar-collapsed-init .sidebar .nav-label,
html.sidebar-collapsed-init .sidebar .node-dot,
html.sidebar-collapsed-init .sidebar .nav-text,
html.sidebar-collapsed-init .sidebar .nav-chevron,
html.sidebar-collapsed-init .sidebar .version-block .sidebar-footer-link,
html.sidebar-collapsed-init .sidebar .version-block .sidebar-version {
  display: none;
}

.sidebar.collapsed .sidebar-header {
  padding: 16px 7px;
  display: flex;
  justify-content: center;
}

html.sidebar-collapsed-init .sidebar .sidebar-header {
  padding: 16px 7px;
  display: flex;
  justify-content: center;
}

.sidebar.collapsed .logo-block {
  gap: 0;
}

html.sidebar-collapsed-init .sidebar .logo-block {
  gap: 0;
}

.sidebar.collapsed .logo-mark {
  width: 34px;
  height: 34px;
}

html.sidebar-collapsed-init .sidebar .logo-mark {
  width: 34px;
  height: 34px;
}

.sidebar.collapsed .sidebar-status {
  margin: 0 6px 8px;
  padding: 8px;
  justify-content: center;
}

html.sidebar-collapsed-init .sidebar .sidebar-status {
  margin: 0 6px 8px;
  padding: 8px;
  justify-content: center;
}

.sidebar.collapsed .nav-item {
  padding: 0 4px;
}

html.sidebar-collapsed-init .sidebar .nav-item {
  padding: 0 4px;
}

.sidebar.collapsed .nav-item-inner {
  padding: 8px;
  justify-content: center;
  gap: 0;
}

html.sidebar-collapsed-init .sidebar .nav-item-inner {
  padding: 8px;
  justify-content: center;
  gap: 0;
}

.sidebar.collapsed .nav-icon {
  width: 36px;
  height: 36px;
}

html.sidebar-collapsed-init .sidebar .nav-icon {
  width: 36px;
  height: 36px;
}

.sidebar.collapsed .nav-sub-menu {
  display: none;
  max-height: 0;
}

html.sidebar-collapsed-init .sidebar .nav-sub-menu {
  display: none;
  max-height: 0;
}

.sidebar.collapsed .version-block {
  justify-content: center;
  padding: 8px;
}

html.sidebar-collapsed-init .sidebar .version-block {
  justify-content: center;
  padding: 8px;
}

.sidebar.collapsed .sidebar-footer {
  flex-direction: column;
  padding: 8px 4px;
}

html.sidebar-collapsed-init .sidebar .sidebar-footer {
  flex-direction: column;
  padding: 8px 4px;
}

.sidebar.collapsed .sidebar-collapse-btn {
  transform: rotate(180deg);
}

html.sidebar-collapsed-init .sidebar .sidebar-collapse-btn {
  transform: rotate(180deg);
}

@media (max-width: 920px) {
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    transform: translateX(-100%);
    z-index: 120;
  }

  .sidebar.mobile-open {
    transform: translateX(0);
  }

  .sidebar,
  .sidebar.collapsed {
    width: var(--sidebar-w);
    min-width: var(--sidebar-w);
  }

  .sidebar.collapsed::after {
    display: block;
  }

  .sidebar.collapsed .logo-text {
    display: block;
  }

  .sidebar.collapsed .sidebar-status .status-text {
    display: inline;
  }

  .sidebar.collapsed .nav-label {
    display: block;
  }

  .sidebar.collapsed .node-dot {
    display: block;
  }

  .sidebar.collapsed .nav-text {
    display: flex;
  }

  .sidebar.collapsed .nav-chevron {
    display: block;
  }

  .sidebar.collapsed .version-block .sidebar-footer-link,
  .sidebar.collapsed .version-block .sidebar-version {
    display: inline;
  }

  .sidebar.collapsed .sidebar-header {
    padding: 24px 20px 18px;
    justify-content: flex-start;
  }

  .sidebar.collapsed .logo-block {
    gap: 14px;
  }

  .sidebar.collapsed .logo-mark {
    width: 42px;
    height: 42px;
  }

  .sidebar.collapsed .sidebar-status {
    margin: 0 12px 8px;
    padding: 10px 20px;
    justify-content: flex-start;
  }

  .sidebar.collapsed .nav-item {
    padding: 0 12px;
  }

  .sidebar.collapsed .nav-item-inner {
    padding: 10px 14px 10px 28px;
    justify-content: flex-start;
    gap: 12px;
  }

  .sidebar.collapsed .nav-sub-menu {
    display: block;
  }

  .sidebar.collapsed .version-block {
    justify-content: space-between;
    padding: 12px 14px;
  }

  .sidebar.collapsed .sidebar-footer {
    flex-direction: row;
    padding: 12px;
  }

  .sidebar.collapsed .sidebar-collapse-btn {
    transform: none;
  }
}