/* Sidebar visual redesign: global nav-only polish. */
:root {
  --sb-bg-top: #061225;
  --sb-bg-mid: #0b2143;
  --sb-bg-bottom: #123966;
  --sb-line: rgba(148, 184, 233, 0.22);
  --sb-line-strong: rgba(125, 178, 255, 0.58);
  --sb-text: #dce9ff;
  --sb-muted: #94acd0;
  --sb-active: #4f8df7;
  --sb-active-soft: rgba(59, 130, 246, 0.2);
  --sb-active-strong: rgba(37, 99, 235, 0.46);
}

.app-shell {
  grid-template-columns: 268px 1fr !important;
}

.sidebar {
  background:
    linear-gradient(180deg, rgba(37, 99, 235, 0.12), transparent 34%),
    linear-gradient(160deg, var(--sb-bg-top) 0%, var(--sb-bg-mid) 54%, var(--sb-bg-bottom) 100%) !important;
  border-right: 1px solid rgba(145, 180, 231, 0.18) !important;
  box-shadow: 16px 0 34px -26px rgba(2, 8, 23, 0.9) !important;
  color: var(--sb-text) !important;
  padding: 18px 14px 16px !important;
}

.sidebar::before {
  content: "";
  display: block;
  width: 34px;
  height: 3px;
  margin: 0 0 14px 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, #60a5fa, #34d399);
  box-shadow: 0 0 18px rgba(96, 165, 250, 0.44);
}

.sidebar .logo {
  color: #ffffff !important;
  font-size: 23px !important;
  line-height: 1.05 !important;
  letter-spacing: 0 !important;
  margin: 0 2px 4px !important;
}

.sidebar .muted {
  color: var(--sb-muted) !important;
  font-size: 12px !important;
  line-height: 1.35 !important;
  margin-inline: 2px !important;
}

.sidebar-nav {
  gap: 5px !important;
  margin-top: 18px !important;
  padding: 0 3px 8px 0 !important;
  scrollbar-color: rgba(148, 184, 233, 0.38) transparent;
}

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

.sidebar-nav::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar-nav::-webkit-scrollbar-thumb {
  background: rgba(148, 184, 233, 0.34);
  border-radius: 999px;
}

.sidebar-nav a,
.sidebar-group-toggle {
  min-height: 36px !important;
  border: 1px solid transparent !important;
  border-radius: 9px !important;
  color: #c8dbf7 !important;
  display: flex !important;
  align-items: center !important;
  gap: 8px !important;
  padding: 8px 10px !important;
  font-size: 13px !important;
  font-weight: 600 !important;
  line-height: 1.2 !important;
  box-shadow: none !important;
  transform: none !important;
  transition:
    background-color 0.16s ease,
    border-color 0.16s ease,
    color 0.16s ease,
    box-shadow 0.16s ease !important;
}

.sidebar-nav a:hover,
.sidebar-group-toggle:hover {
  background: rgba(255, 255, 255, 0.08) !important;
  border-color: var(--sb-line) !important;
  color: #ffffff !important;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.03) !important;
}

.sidebar-nav a.active,
.sidebar-group-toggle.active {
  background:
    linear-gradient(90deg, rgba(79, 141, 247, 0.34), rgba(79, 141, 247, 0.14)),
    rgba(255, 255, 255, 0.06) !important;
  border-color: var(--sb-line-strong) !important;
  color: #ffffff !important;
  font-weight: 700 !important;
  box-shadow:
    inset 3px 0 0 var(--sb-active),
    0 8px 18px -15px rgba(37, 99, 235, 0.85) !important;
}

.sidebar-group-toggle {
  justify-content: space-between !important;
  width: 100% !important;
  margin-top: 6px !important;
  background: rgba(255, 255, 255, 0.035) !important;
  border-color: rgba(148, 184, 233, 0.2) !important;
}

.sidebar-group-toggle strong {
  font-size: 13px !important;
  line-height: 1 !important;
}

.sidebar-subnav {
  position: relative;
  display: grid !important;
  gap: 4px !important;
  margin: 4px 0 7px 9px !important;
  padding: 5px 0 5px 10px !important;
  border-left: 1px solid rgba(148, 184, 233, 0.24) !important;
}

.sidebar-subnav::before {
  content: "";
  position: absolute;
  inset: 5px auto 5px -1px;
  width: 1px;
  background: linear-gradient(180deg, transparent, rgba(96, 165, 250, 0.72), transparent);
}

.sidebar-subnav a {
  min-height: 31px !important;
  border-radius: 8px !important;
  color: #adc5ea !important;
  font-size: 12px !important;
  font-weight: 600 !important;
  padding: 7px 9px !important;
}

.sidebar-subnav a:hover {
  background: rgba(255, 255, 255, 0.075) !important;
  color: #eef5ff !important;
}

.sidebar-subnav a.active {
  background: var(--sb-active-soft) !important;
  border-color: rgba(96, 165, 250, 0.46) !important;
  color: #ffffff !important;
  box-shadow: inset 2px 0 0 #7db2ff !important;
}

.sidebar-footer {
  margin-top: 10px !important;
  padding-top: 12px !important;
  border-top: 1px solid var(--sb-line) !important;
}

.sidebar-logout-btn {
  min-height: 38px !important;
  border-radius: 9px !important;
  border: 1px solid rgba(148, 184, 233, 0.28) !important;
  background: rgba(255, 255, 255, 0.08) !important;
  color: #eef5ff !important;
  box-shadow: none !important;
}

.sidebar-logout-btn:hover {
  background: rgba(255, 255, 255, 0.14) !important;
  border-color: rgba(172, 201, 242, 0.48) !important;
}

@media (max-width: 1366px) {
  .app-shell {
    grid-template-columns: 248px 1fr !important;
  }
}

@media (max-width: 820px) {
  .app-shell {
    grid-template-columns: 1fr !important;
  }

  .sidebar {
    width: min(86vw, 310px) !important;
    padding-top: 16px !important;
  }
}