/* ============================================
   UstaNet Web Panel — Sidebar Stilleri
   ============================================ */

.sidebar {
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--sidebar-bg);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  transition: width var(--transition-normal);
  z-index: 30;
  overflow: hidden;
}

/* Collapsed */
.sidebar.collapsed {
  width: var(--sidebar-collapsed-width);
}

.sidebar.collapsed .sidebar-brand,
.sidebar.collapsed .sidebar-section-label,
.sidebar.collapsed .sidebar-user-details,
.sidebar.collapsed .logout-text,
.sidebar.collapsed .nav-label {
  display: none;
}

.sidebar.collapsed .sidebar-header {
  justify-content: center;
  padding: 16px 0;
}

.sidebar.collapsed .sidebar-toggle {
  margin-left: 0;
}

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

.sidebar.collapsed .nav-item .material-icons-round {
  margin-right: 0;
}

.sidebar.collapsed .nav-item .nav-badge {
  position: absolute;
  top: 4px;
  right: 8px;
}

.sidebar.collapsed .sidebar-user {
  justify-content: center;
}

.sidebar.collapsed .sidebar-logout-btn {
  justify-content: center;
  padding: 10px 0;
}

/* Sidebar Header */
.sidebar-header {
  display: flex;
  align-items: center;
  padding: 20px 20px 16px;
  gap: 10px;
  flex-shrink: 0;
  border-bottom: 1px solid var(--sidebar-border);
}

.sidebar-logo-icon {
  font-size: 28px;
  color: var(--accent);
  flex-shrink: 0;
}

.sidebar-brand {
  font-size: 20px;
  font-weight: 700;
  color: var(--sidebar-text-active);
  white-space: nowrap;
}

.sidebar-toggle {
  margin-left: auto;
  background: none;
  border: none;
  color: var(--sidebar-text);
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
}

.sidebar-toggle:hover {
  background: var(--sidebar-bg-hover);
  color: var(--sidebar-text-active);
}

/* Sidebar Menu */
.sidebar-menu {
  flex: 1;
  overflow-y: auto;
  padding: 12px 0;
}

.sidebar-section-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.2px;
  color: var(--sidebar-section-label);
  padding: 16px 20px 6px;
  text-transform: uppercase;
  white-space: nowrap;
}

/* Nav Item */
.nav-item {
  position: relative;
  display: flex;
  align-items: center;
  padding: 10px 20px;
  margin: 2px 8px;
  border-radius: var(--radius-md);
  color: var(--sidebar-text);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  user-select: none;
  white-space: nowrap;
}

.nav-item:hover {
  background: var(--sidebar-bg-hover);
  color: var(--sidebar-text-active);
  text-decoration: none;
}

.nav-item.active {
  background: var(--sidebar-bg-active);
  color: var(--sidebar-text-active);
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: -8px;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 24px;
  background: var(--sidebar-accent);
  border-radius: 0 3px 3px 0;
}

.nav-item .material-icons-round {
  font-size: 20px;
  margin-right: 12px;
  flex-shrink: 0;
  transition: color var(--transition-fast);
}

.nav-item.active .material-icons-round {
  color: var(--sidebar-accent);
}

.nav-label {
  font-size: 13px;
  font-weight: 500;
  flex: 1;
}

.nav-badge {
  background: var(--danger);
  color: white;
  font-size: 10px;
  font-weight: 700;
  min-width: 20px;
  height: 20px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 5px;
  margin-left: auto;
}

/* Sidebar Footer */
.sidebar-footer {
  flex-shrink: 0;
  border-top: 1px solid var(--sidebar-border);
  padding: 12px;
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px;
  border-radius: var(--radius-md);
  margin-bottom: 8px;
}

.sidebar-user-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--accent);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}

.sidebar-user-details {
  flex: 1;
  min-width: 0;
  overflow: hidden;
}

.sidebar-user-name {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--sidebar-text-active);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-user-role {
  display: block;
  font-size: 11px;
  color: var(--sidebar-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-logout-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 12px;
  background: none;
  border: none;
  color: var(--sidebar-text);
  cursor: pointer;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-family: inherit;
  transition: all var(--transition-fast);
}

.sidebar-logout-btn:hover {
  background: rgba(239, 68, 68, 0.1);
  color: var(--danger);
}

.sidebar-logout-btn .material-icons-round {
  font-size: 20px;
}

/* ---------- Mobile Sidebar Overlay ---------- */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 25;
}

.sidebar-overlay.active {
  display: block;
}

@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    left: -280px;
    transition: left var(--transition-normal);
  }

  .sidebar.mobile-open {
    left: 0;
  }

  .sidebar-toggle {
    display: none;
  }
}