:root {
  --sb-bg: #0d1627;
  --sb-bg-2: #111f35;
  --sb-surface: rgba(17, 31, 53, 0.82);
  --sb-line: rgba(148, 163, 184, 0.18);
  --sb-text: #dfe9ff;
  --sb-text-soft: #9aa9c8;
  --sb-text-faint: #6a7a96;
  --sb-accent: #4f8df7;
  --sb-accent-2: #7db4ff;
  --sb-accent-soft: rgba(79, 141, 247, 0.12);
  --sb-badge: #ff5c75;
  --sb-badge-soft: rgba(255, 92, 117, 0.16);
  --sb-shadow: 0 18px 35px rgba(2, 6, 23, 0.42);
  --sb-radius: 14px;
  --sb-width: 264px;
  --sb-width-collapsed: 80px;
  --sb-transition: 220ms ease;
  --sb-font: "Inter", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

.trrh-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sb-width);
  height: 100vh;
  background: linear-gradient(180deg, rgba(13, 22, 39, 0.98), rgba(13, 22, 39, 0.9));
  border-right: 1px solid var(--sb-line);
  box-shadow: var(--sb-shadow);
  display: flex;
  flex-direction: column;
  z-index: 1030;
  transition: width var(--sb-transition), transform var(--sb-transition);
}

.trrh-sidebar.is-collapsed {
  width: var(--sb-width-collapsed);
}

.trrh-admin-content {
  margin-left: var(--sb-width);
  transition: margin-left var(--sb-transition);
  min-height: 100vh;
}

.trrh-sidebar.is-collapsed ~ .trrh-admin-content,
body.sb-collapsed .trrh-admin-content {
  margin-left: var(--sb-width-collapsed);
}

.sb-brand {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 24px 18px;
  border-bottom: 1px solid var(--sb-line);
  background: linear-gradient(135deg, rgba(79, 141, 247, 0.08), rgba(124, 180, 255, 0.04));
  backdrop-filter: blur(10px);
}

.sb-brand-mark {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--sb-accent), var(--sb-accent-2));
  color: #fff;
  font-weight: 900;
  font-size: 1.5rem;
  box-shadow: 0 12px 28px rgba(79, 141, 247, 0.4);
  flex-shrink: 0;
}

.sb-brand-text {
  flex: 1;
  min-width: 0;
}

.sb-brand-name {
  color: var(--sb-text);
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  line-height: 1.2;
}

.sb-brand-sub {
  color: var(--sb-text-soft);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-top: 2px;
  font-weight: 600;
}

.sb-collapse-btn {
  width: 30px;
  height: 30px;
  border: 1px solid var(--sb-line);
  border-radius: 10px;
  background: rgba(255,255,255,0.03);
  color: var(--sb-text-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--sb-transition);
}

.sb-collapse-btn:hover {
  background: rgba(255,255,255,0.06);
  color: var(--sb-text);
}

.trrh-sidebar.is-collapsed .sb-brand-text,
.trrh-sidebar.is-collapsed .sb-collapse-btn {
  display: none;
}

.trrh-sidebar.is-collapsed .sb-brand {
  justify-content: center;
}

.sb-nav {
  flex: 1;
  overflow-y: auto;
  padding: 16px 12px 20px;
}

.sb-nav::-webkit-scrollbar {
  width: 6px;
}

.sb-nav::-webkit-scrollbar-thumb {
  background: rgba(148, 163, 184, 0.2);
  border-radius: 999px;
}

.sb-group {
  margin-bottom: 10px;
}

.sb-group-label {
  padding: 8px 10px 8px;
  color: var(--sb-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.63rem;
  font-weight: 700;
}

.sb-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.sb-item {
  position: relative;
  margin: 2px 0;
}

.sb-link {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 10px 12px;
  border: 1px solid transparent;
  border-radius: var(--sb-radius);
  background: transparent;
  color: var(--sb-text-soft);
  text-decoration: none;
  font-size: 0.91rem;
  font-weight: 600;
  transition: all var(--sb-transition);
}

.sb-link:hover {
  background: rgba(255, 255, 255, 0.035);
  color: var(--sb-text);
  border-color: rgba(255, 255, 255, 0.03);
}

.sb-link.is-active {
  background: linear-gradient(90deg, rgba(79, 141, 247, 0.18), rgba(79, 141, 247, 0.05));
  border-color: rgba(125, 180, 255, 0.25);
  color: var(--sb-text);
  box-shadow: inset 0 0 0 1px rgba(125, 180, 255, 0.08);
}

.sb-link.is-active::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 10px;
  width: 3px;
  height: 22px;
  border-radius: 99px;
  background: linear-gradient(180deg, var(--sb-accent), var(--sb-accent-2));
}

.sb-icon {
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.05rem;
  flex-shrink: 0;
}

.sb-label {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sb-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 6px;
  background: var(--sb-badge-soft);
  color: #ffdfe6;
  border-radius: 999px;
  font-size: 0.64rem;
  font-weight: 700;
}

.sb-tooltip {
  position: absolute;
  left: calc(100% + 10px);
  top: 50%;
  transform: translateY(-50%) scale(0.96);
  padding: 7px 10px;
  border-radius: 10px;
  background: rgba(15, 23, 42, 0.96);
  color: var(--sb-text);
  font-size: 0.75rem;
  font-weight: 600;
  box-shadow: var(--sb-shadow);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--sb-transition), transform var(--sb-transition);
  white-space: nowrap;
  z-index: 1040;
}

.trrh-sidebar.is-collapsed .sb-item:hover > .sb-tooltip {
  opacity: 1;
  transform: translateY(-50%) scale(1);
}

.trrh-sidebar:not(.is-collapsed) .sb-tooltip {
  display: none;
}

.trrh-sidebar.is-collapsed .sb-label,
.trrh-sidebar.is-collapsed .sb-badge {
  display: none;
}

.trrh-sidebar.is-collapsed .sb-link {
  justify-content: center;
  padding: 10px 8px;
}

.trrh-sidebar.is-collapsed .sb-link.is-active::before {
  left: -6px;
}

.sb-profile {
  border-top: 1px solid var(--sb-line);
  padding: 14px;
  position: relative;
  background: rgba(79, 141, 247, 0.04);
}

.sb-profile-trigger {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  border: 1.5px solid var(--sb-line);
  border-radius: var(--sb-radius);
  background: rgba(255,255,255,0.025);
  cursor: pointer;
  padding: 10px 12px;
  color: var(--sb-text);
  text-align: left;
  transition: all var(--sb-transition);
}

.sb-profile-trigger:hover {
  background: rgba(79, 141, 247, 0.12);
  border-color: var(--sb-accent-soft);
  transform: translateY(-2px);
}

.sb-avatar {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--sb-accent), var(--sb-accent-2));
  color: #fff;
  font-size: 0.85rem;
  font-weight: 800;
  flex-shrink: 0;
  box-shadow: 0 6px 16px rgba(79, 141, 247, 0.3);
}

.sb-profile-meta {
  flex: 1;
  min-width: 0;
}

.sb-profile-name {
  color: var(--sb-text);
  font-size: 0.85rem;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sb-profile-role {
  color: var(--sb-text-faint);
  font-size: 0.70rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 600;
}

.sb-profile-caret {
  color: var(--sb-text-soft);
  font-size: 0.85rem;
  transition: transform var(--sb-transition);
}

.sb-profile.is-open .sb-profile-caret {
  transform: rotate(180deg);
  color: var(--sb-accent);
}

.sb-profile-menu {
  position: absolute;
  bottom: calc(100% + 12px);
  left: 12px;
  right: 12px;
  padding: 10px;
  border: 1.5px solid var(--sb-line);
  border-radius: 14px;
  background: rgba(13, 22, 39, 0.98);
  backdrop-filter: blur(12px);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.6);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--sb-transition);
}

.sb-profile.is-open .sb-profile-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.sb-profile-menu a {
  display: flex;
  align-items: center;
  gap: 11px;
  width: 100%;
  padding: 10px 12px;
  border-radius: 11px;
  color: var(--sb-text-soft);
  text-decoration: none;
  font-size: 0.84rem;
  font-weight: 500;
  transition: all var(--sb-transition);
}

.sb-profile-menu a:hover {
  background: rgba(79, 141, 247, 0.12);
  color: var(--sb-text);
  transform: translateX(4px);
}

.sb-profile-menu a i {
  font-size: 1rem;
  width: 18px;
  text-align: center;
}

.sb-profile-menu .sb-logout {
  color: #ff8fa3;
  font-weight: 600;
}

.sb-profile-menu .sb-logout:hover {
  background: rgba(255, 92, 117, 0.15);
  color: #ffdfe6;
}

.sb-profile-menu-divider {
  height: 1px;
  background: var(--sb-line);
  margin: 8px 0;
}

.sb-mobile-topbar {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--sb-bg);
  border-bottom: 1px solid var(--sb-line);
  position: sticky;
  top: 0;
  z-index: 1010;
}

.sb-hamburger {
  width: 38px;
  height: 38px;
  border: 1px solid var(--sb-line);
  border-radius: 10px;
  background: rgba(255,255,255,0.02);
  color: var(--sb-text);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.sb-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(2, 6, 23, 0.52);
  z-index: 1020;
  opacity: 0;
  transition: opacity var(--sb-transition);
}

.sb-overlay.is-visible {
  display: block;
  opacity: 1;
}

@media (max-width: 991.98px) {
  .sb-mobile-topbar {
    display: flex;
  }

  .trrh-sidebar {
    transform: translateX(-105%);
    width: var(--sb-width);
  }

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

  .trrh-admin-content,
  body.sb-collapsed .trrh-admin-content {
    margin-left: 0;
  }
}

.sb-link:focus-visible,
.sb-collapse-btn:focus-visible,
.sb-hamburger:focus-visible,
.sb-profile-trigger:focus-visible,
.sb-profile-menu a:focus-visible {
  outline: 2px solid var(--sb-accent);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .trrh-sidebar,
  .sb-link,
  .sb-tooltip,
  .sb-profile-menu,
  .sb-overlay,
  .trrh-admin-content,
  .sb-collapse-btn {
    transition: none !important;
  }
}