/* ============================================================
   PREMIUM ENTERPRISE SIDEBAR — AURORA EDITION
   Dark aurora surfaces · indigo/cyan accents · sectioned nav
   Each icon carries its own accent color.
   ============================================================ */

.premium-sidebar {
  /* Aurora tokens */
  --ps-aurora-bg: #060a14;
  --ps-aurora-surface: rgba(12, 16, 28, 0.65);
  --ps-aurora-border: rgba(99, 102, 241, 0.15);
  --ps-border-hover: rgba(99, 102, 241, 0.35);
  --ps-primary: #6366f1;
  --ps-primary-light: #818cf8;
  --ps-secondary: #06b6d4;
  --ps-text: #e2e8f0;
  --ps-text-muted: #94a3b8;
  --ps-gradient: linear-gradient(135deg, #6366f1, #06b6d4);
  --ps-radius: 14px;
  --ps-radius-sm: 10px;
  --ps-icon-glow: drop-shadow(0 0 6px rgba(99, 102, 241, 0.55));
  --ps-glow-strong: 0 0 0 1px rgba(99, 102, 241, 0.35), 0 0 24px rgba(99, 102, 241, 0.22), 0 8px 24px rgba(0, 0, 0, 0.3);
  --ps-glow-soft: 0 0 0 1px rgba(99, 102, 241, 0.22), 0 0 16px rgba(99, 102, 241, 0.15), 0 4px 14px rgba(0, 0, 0, 0.2);
  --ps-transition: cubic-bezier(.22, .61, .36, 1);
}

/* ---- Sidebar frame: deep aurora gradient + glass ------------- */
.premium-sidebar {
  width: 280px;
  background: linear-gradient(180deg, rgba(10, 14, 26, 0.97) 0%, rgba(6, 8, 15, 0.97) 100%);
  border-right: 1px solid var(--ps-aurora-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: width .32s var(--ps-transition), border-color .3s ease;
}

html.dark .premium-sidebar {
  border-right: 1px solid rgba(129, 140, 248, 0.18);
}

/* ---- Brand header: gradient wash like the reference ---------- */
.premium-sidebar .premium-sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 26px 24px 22px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.14) 0%, rgba(6, 182, 212, 0.09) 100%);
  border-bottom: 1px solid var(--ps-aurora-border);
  transition: opacity .25s ease;
}
.premium-sidebar .premium-sidebar-brand .navbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0;
  padding: 0;
  min-width: 0;
  transition: opacity .25s ease;
}
.premium-sidebar .premium-sidebar-brand-logo {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  border-radius: 12px;
  background: var(--ps-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 6px 18px rgba(99, 102, 241, 0.35);
}
.premium-sidebar .premium-sidebar-brand-logo svg {
  width: 20px;
  height: 20px;
  fill: #fff;
}
.premium-sidebar .premium-sidebar-brand-text {
  min-width: 0;
  transition: opacity .25s ease;
}
.premium-sidebar .premium-sidebar-brand-name {
  font-size: 19px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.4px;
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.premium-sidebar .premium-sidebar-brand-sub {
  font-size: 10.5px;
  font-weight: 600;
  color: var(--ps-secondary);
  text-transform: uppercase;
  letter-spacing: 1.2px;
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ---- Toolbar row (Menu label · mute · collapse) -------------- */
.premium-sidebar .premium-sidebar-toolbar {
  padding: 12px 16px 4px;
}
.premium-sidebar .premium-sidebar-menu-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--ps-primary-light);
  text-transform: uppercase;
  letter-spacing: 1.4px;
  transition: opacity .25s ease;
}
.premium-sidebar .premium-sidebar-collapse,
.premium-sidebar .premium-sidebar-mute {
  width: 30px;
  height: 30px;
  border-radius: 10px;
  color: var(--ps-text-muted) !important;
  background: rgba(255, 255, 255, 0.04);
  transition: color .2s ease, background-color .2s ease, box-shadow .25s ease, transform .3s var(--ps-transition);
  outline: none;
}
.premium-sidebar .premium-sidebar-collapse:hover,
.premium-sidebar .premium-sidebar-mute:hover {
  color: var(--ps-primary-light) !important;
  background: rgba(99, 102, 241, 0.14);
  box-shadow: 0 0 0 1px rgba(99, 102, 241, 0.3), 0 0 14px rgba(99, 102, 241, 0.2);
}
.premium-sidebar .premium-sidebar-collapse svg { transition: transform .32s var(--ps-transition); }

/* ---- Scroll area --------------------------------------------- */
.premium-sidebar .sidebar {
  scrollbar-width: thin;
  scrollbar-color: rgba(99, 102, 241, 0.4) transparent;
}
.premium-sidebar .sidebar::-webkit-scrollbar { width: 6px; }
.premium-sidebar .sidebar::-webkit-scrollbar-track { background: transparent; }
.premium-sidebar .sidebar::-webkit-scrollbar-thumb {
  background: rgba(99, 102, 241, 0.4);
  border-radius: 99px;
}

/* ---- Nav sections (like the reference docs sidebar) ---------- */
.premium-sidebar .sidebar > .nav {
  display: block;
  padding: 8px 0 20px;
}
.premium-sidebar .premium-sidebar-nav-section-title {
  padding: 14px 25px 6px;
  font-size: 11px;
  font-weight: 600;
  color: var(--ps-primary-light);
  text-transform: uppercase;
  letter-spacing: 1.4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: opacity .25s ease;
}

/* ---- Nav links ------------------------------------------------ */
.premium-sidebar .sidebar .nav-item,
.premium-sidebar .sidebar .nav {
  list-style: none;
  display: block;
}

.premium-sidebar .sidebar .nav-link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 25px;
  margin: 1px 0;
  color: var(--ps-text-muted);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  border: 0;
  border-left: 3px solid transparent;
  border-radius: 0;
  background: transparent;
  transition: color .25s var(--ps-transition),
              background-color .25s var(--ps-transition),
              box-shadow .3s var(--ps-transition),
              border-color .25s var(--ps-transition),
              transform .2s var(--ps-transition);
}

/* Icon base — each item carries its own color via inline style */
.premium-sidebar .sidebar-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  transition: transform .28s var(--ps-transition), filter .28s ease, opacity .2s ease;
}
.premium-sidebar .sidebar-icon svg {
  transition: fill .25s var(--ps-transition), filter .28s ease;
}

/* ---- HOVER ---------------------------------------------------- */
.premium-sidebar .sidebar .nav-link:hover {
  color: var(--ps-text);
  background: rgba(99, 102, 241, 0.1);
  border-left-color: var(--ps-primary-light);
  box-shadow: var(--ps-glow-soft);
  transform: translateX(2px);
}
.premium-sidebar .sidebar .nav-link:hover .sidebar-icon {
  filter: drop-shadow(0 0 6px currentColor);
  transform: scale(1.12);
}

/* ---- ACTIVE --------------------------------------------------- */
.premium-sidebar .sidebar .nav-link.active {
  color: #ffffff;
  background: rgba(99, 102, 241, 0.16);
  border-left-color: var(--ps-primary-light);
  box-shadow: var(--ps-glow-strong), inset 0 1px 0 rgba(255, 255, 255, 0.05);
  font-weight: 600;
}
.premium-sidebar .sidebar .nav-link.active::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(220px 46px at 12% 50%, rgba(99, 102, 241, 0.22), transparent 72%);
  pointer-events: none;
}
.premium-sidebar .sidebar .nav-link.active .sidebar-icon {
  filter: drop-shadow(0 0 8px currentColor) drop-shadow(0 0 16px currentColor);
  transform: scale(1.08);
}

/* ---- Submenu --------------------------------------------------- */
.premium-sidebar .sidebar .sidebar-expand {
  margin-left: auto;
  color: var(--ps-text-muted);
  transition: transform .3s var(--ps-transition);
}
.premium-sidebar .sidebar .nav-link[aria-expanded="true"] > .sidebar-expand {
  transform: rotate(180deg);
}

.premium-sidebar .sub-menu {
  position: relative;
  margin: 0;
  padding-left: 0;
}
.premium-sidebar .sub-menu::before {
  content: '';
  position: absolute;
  top: 4px;
  bottom: 4px;
  left: 26px;
  width: 1px;
  background: linear-gradient(180deg, rgba(99, 102, 241, 0.5), rgba(6, 182, 212, 0.1));
  border-radius: 99px;
}
.premium-sidebar .sub-menu .nav-link {
  padding: 10px 25px 10px 44px;
  font-size: 13px;
  color: var(--ps-text-muted);
}
.premium-sidebar .sub-menu .nav-link .sidebar-icon {
  width: 14px;
  height: 14px;
  margin-left: -18px;
  opacity: 0;
}
.premium-sidebar .sub-menu .nav-link.active .sidebar-icon { opacity: 1; }
.premium-sidebar .sub-menu .nav-link:hover {
  color: var(--ps-text);
  background: rgba(99, 102, 241, 0.08);
  border-left-color: transparent;
}
.premium-sidebar .sub-menu .nav-link.active {
  background: rgba(99, 102, 241, 0.14);
  border-left-color: var(--ps-primary-light);
  box-shadow: 0 0 14px rgba(99, 102, 241, 0.14);
}
.premium-sidebar .sub-menu .nav-link.active::after { display: none; }

/* ---- Quota card ------------------------------------------------ */
.premium-sidebar .premium-sidebar-quota {
  border-radius: var(--ps-radius-sm);
  margin: 8px 16px;
  transition: background-color .2s ease, box-shadow .25s ease, color .2s ease;
}
.premium-sidebar .premium-sidebar-quota:hover {
  background: rgba(99, 102, 241, 0.08);
  box-shadow: 0 0 0 1px rgba(99, 102, 241, 0.25), 0 0 14px rgba(99, 102, 241, 0.14);
  color: var(--ps-text);
}
.premium-sidebar .premium-sidebar-quota .progress {
  background: rgba(148, 163, 184, 0.18);
}
.premium-sidebar .premium-sidebar-quota .progress-bar {
  background: var(--ps-gradient);
  border-radius: 99px;
}

/* ---- Footer ---------------------------------------------------- */
.premium-sidebar .sidebar-footer {
  background: rgba(99, 102, 241, 0.06);
  border-top: 1px solid var(--ps-aurora-border);
}
.premium-sidebar .sidebar-footer a { color: var(--ps-text-muted); transition: color .2s ease; }
.premium-sidebar .sidebar-footer a:hover { color: var(--ps-text); }
.premium-sidebar .sidebar-footer .text-dark { color: var(--ps-text) !important; }
.premium-sidebar .sidebar-footer .text-secondary { color: var(--ps-text-muted) !important; }
.premium-sidebar .sidebar-footer img {
  border: 1px solid rgba(99, 102, 241, 0.4);
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.25);
}

/* ---- COLLAPSED MODE --------------------------------------------- */
@media (min-width: 992px) {
  .premium-sidebar.premium-sidebar-collapsed {
    width: 76px;
    overflow: visible;
  }
  .premium-sidebar.premium-sidebar-collapsed .premium-sidebar-brand {
    padding: 20px 0 16px;
    justify-content: center;
  }
  .premium-sidebar.premium-sidebar-collapsed .premium-sidebar-brand .navbar-brand { display: block; width: 40px; }
  .premium-sidebar.premium-sidebar-collapsed .premium-sidebar-brand-logo { margin: 0 auto; }
  .premium-sidebar.premium-sidebar-collapsed .premium-sidebar-brand-name,
  .premium-sidebar.premium-sidebar-collapsed .premium-sidebar-brand-sub { display: none; }

  .premium-sidebar.premium-sidebar-collapsed .premium-sidebar-menu-label,
  .premium-sidebar.premium-sidebar-collapsed .premium-sidebar-nav-section-title,
  .premium-sidebar.premium-sidebar-collapsed .premium-sidebar-quota,
  .premium-sidebar.premium-sidebar-collapsed .sidebar-footer,
  .premium-sidebar.premium-sidebar-collapsed .premium-sidebar-mute { display: none; }

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

  .premium-sidebar.premium-sidebar-collapsed .sidebar .nav-link span.flex-grow-1,
  .premium-sidebar.premium-sidebar-collapsed .sidebar .nav-link span.flex-grow-1.text-truncate { display: none; }
  .premium-sidebar.premium-sidebar-collapsed .sidebar-expand { display: none; }

  .premium-sidebar.premium-sidebar-collapsed .sidebar .nav-link {
    justify-content: center;
    padding: 13px 0;
    gap: 0;
    border-left: 0;
    margin-left: 0;
  }
  .premium-sidebar.premium-sidebar-collapsed .sidebar .nav-link:hover { transform: none; }
  .premium-sidebar.premium-sidebar-collapsed .sidebar-icon { margin: 0 !important; }

  .premium-sidebar.premium-sidebar-collapsed .sidebar .nav-link.active::before {
    content: '';
    position: absolute;
    top: 28%;
    bottom: 28%;
    right: -0.3rem;
    left: auto;
    width: 3px;
    border-radius: 99px;
    background: var(--ps-primary-light);
    box-shadow: 0 0 10px var(--ps-primary-light), 0 0 20px rgba(99, 102, 241, 0.6);
  }
  .premium-sidebar.premium-sidebar-collapsed .sub-menu { display: none !important; }
}

/* ---- Content offset ---------------------------------------------- */
@media (min-width: 992px) {
  .premium-sidebar ~ .content { margin-left: 280px; }
  .premium-sidebar.premium-sidebar-collapsed ~ .content,
  body.premium-sidebar-state-collapsed .content { margin-left: 76px; }
}
[dir="rtl"] .premium-sidebar ~ .content { margin-left: 0; margin-right: 280px; }
@media (min-width: 992px) {
  [dir="rtl"] .premium-sidebar.premium-sidebar-collapsed ~ .content,
  [dir="rtl"] body.premium-sidebar-state-collapsed .content { margin-right: 76px; }
}

/* ---- Mobile: keep slide-over -------------------------------------- */
@media (max-width: 991.98px) {
  .premium-sidebar { width: 280px !important; }
  .premium-sidebar .premium-sidebar-collapse { display: none !important; }
}

/* ---- RTL ---------------------------------------------------------- */
[dir="rtl"] .premium-sidebar {
  border-right: 0;
  border-left: 1px solid var(--ps-aurora-border);
}
[dir="rtl"] .premium-sidebar .sidebar .nav-link {
  border-left: 0;
  border-right: 3px solid transparent;
}
[dir="rtl"] .premium-sidebar .sidebar .nav-link:hover,
[dir="rtl"] .premium-sidebar .sidebar .nav-link.active {
  border-left-color: transparent;
  border-right-color: var(--ps-primary-light);
  transform: translateX(-2px);
}
[dir="rtl"] .premium-sidebar .sub-menu { padding-right: 0; }
[dir="rtl"] .premium-sidebar .sub-menu::before { left: auto; right: 26px; }
[dir="rtl"] .premium-sidebar .sub-menu .nav-link { padding: 10px 44px 10px 25px; }
[dir="rtl"] .premium-sidebar .sub-menu .nav-link .sidebar-icon { margin-left: 0; margin-right: -18px; }
[dir="rtl"] .premium-sidebar.premium-sidebar-collapsed .sidebar .nav-link.active::before {
  right: auto;
  left: -0.3rem;
}

/* ---- Reduced motion ------------------------------------------------ */
@media (prefers-reduced-motion: reduce) {
  .premium-sidebar,
  .premium-sidebar .sidebar .nav-link,
  .premium-sidebar .sidebar-icon,
  .premium-sidebar .sidebar-expand,
  .premium-sidebar .premium-sidebar-collapse {
    transition: none !important;
  }
}