/* ============================================================
   Sidebar Component
   ============================================================ */

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
}
.sidebar-logo:hover { text-decoration: none; }

.sidebar-logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--color-brand-500), var(--color-accent-400));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.sidebar-logo-text {
  font-size: var(--text-base);
  font-weight: var(--font-bold);
  color: var(--color-text);
  background: linear-gradient(135deg, var(--color-brand-500), var(--color-accent-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sidebar-new-chat {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  margin: var(--space-3) var(--space-3);
  background: var(--color-primary);
  color: white;
  border-radius: var(--radius-lg);
  cursor: pointer;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  border: none;
  width: calc(100% - var(--space-6));
  transition: all var(--duration-fast);
  box-shadow: 0 2px 8px rgba(99, 79, 230, 0.25);
}
.sidebar-new-chat:hover {
  background: var(--color-primary-hover);
  box-shadow: 0 4px 12px rgba(99, 79, 230, 0.4);
  transform: translateY(-1px);
}

.sidebar-section {
  padding: var(--space-2) var(--space-3);
  flex-shrink: 0;
}
.sidebar-section-title {
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--color-text-subtle);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: var(--space-1) var(--space-2);
  margin-bottom: var(--space-1);
}

.sidebar-conversations {
  flex: 1;
  overflow-y: auto;
  padding: 0 var(--space-3);
}

.conv-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--duration-fast);
  position: relative;
  min-height: 40px;
}
.conv-item:hover { background: var(--color-bg-subtle); }
.conv-item.active {
  background: hsl(248, 80%, 56%, 0.1);
  border: 1px solid hsl(248, 80%, 56%, 0.2);
}
[data-theme="dark"] .conv-item.active { background: hsl(248, 80%, 56%, 0.15); }

.conv-icon {
  font-size: 0.875rem;
  flex-shrink: 0;
  color: var(--color-text-subtle);
}
.conv-title {
  font-size: var(--text-sm);
  color: var(--color-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}
.conv-delete {
  opacity: 0;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  font-size: 0.75rem;
  transition: all var(--duration-fast);
  flex-shrink: 0;
}
.conv-item:hover .conv-delete { opacity: 1; }
.conv-delete:hover { background: var(--color-error-bg); color: var(--color-error); }

/* ── Sidebar Footer ────────────────────────────────────────── */
.sidebar-footer {
  padding: var(--space-3) var(--space-3);
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  flex-shrink: 0;
}

.user-info {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: background var(--duration-fast);
}
.user-info:hover { background: var(--color-bg-subtle); }

.user-avatar-img {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-brand-400), var(--color-accent-400));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: white;
  flex-shrink: 0;
  overflow: hidden;
}
.user-avatar-img img { width: 100%; height: 100%; object-fit: cover; }

.user-details { flex: 1; min-width: 0; }
.user-name {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.user-balance {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.balance-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: hsl(142, 76%, 36%, 0.1);
  color: var(--color-success);
  border-radius: var(--radius-full);
  padding: 2px 8px;
  font-size: 11px;
  font-weight: var(--font-semibold);
}

.sidebar-nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-2);
  border-radius: var(--radius-lg);
  cursor: pointer;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  border: none;
  background: transparent;
  width: 100%;
  text-align: left;
  transition: all var(--duration-fast);
}
.sidebar-nav-item:hover { background: var(--color-bg-subtle); color: var(--color-text); }