.sidebar {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 16px;
  padding: 14px;
  border-right: 1px solid var(--border);
  background: #171615;
}

.sidebar-top {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 8px;
  align-items: center;
}

.sidebar-close,
.sidebar-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  font-size: 19px;
  line-height: 1;
}

.sidebar-close:hover,
.sidebar-toggle:hover {
  background: var(--panel-soft);
}

.sidebar-overlay {
  display: none;
}

.new-chat {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
  color: var(--text);
  font-weight: 650;
}

.new-chat:hover,
.chat-item:hover {
  background: var(--panel-soft);
}

.chat-list {
  display: flex;
  min-height: 0;
  flex: 1;
  flex-direction: column;
  gap: 14px;
  overflow: auto;
}

.sidebar-section {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 6px;
}

.sidebar-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-height: 32px;
  padding: 0 2px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.sidebar-icon-button,
.sidebar-menu-button {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  font-size: 17px;
  line-height: 1;
}

.sidebar-icon-button:hover,
.sidebar-menu-button:hover,
.sidebar-icon-button:focus-visible,
.sidebar-menu-button:focus-visible {
  background: var(--panel-soft);
  color: var(--text);
}

.sidebar-section-action {
  margin-left: auto;
}

.project-empty-state,
.sidebar-status-message {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 8px;
  padding: 8px 10px 10px;
  color: var(--muted);
  font-size: 13px;
}

.project-empty-title {
  color: var(--text);
  font-weight: 600;
}

.project-empty-create,
.project-show-more {
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  min-height: 34px;
  padding: 0 10px;
  border-radius: 8px;
  background: var(--panel);
  color: var(--text);
  font-size: 13px;
}

.project-empty-create:hover,
.project-show-more:hover {
  background: var(--panel-soft);
}

.project-block {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 4px;
}

.project-row {
  display: grid;
  grid-template-columns: 26px 18px minmax(0, 1fr) auto auto auto;
  align-items: center;
  gap: 6px;
  min-height: 40px;
  padding: 6px 8px;
  border-radius: 8px;
  color: var(--text);
}

.project-row:hover,
.project-row.active {
  background: var(--panel-soft);
}

.project-toggle,
.project-title {
  display: inline-flex;
  align-items: center;
  min-width: 0;
  border-radius: 8px;
  background: transparent;
  color: inherit;
}

.project-toggle {
  justify-content: center;
  width: 26px;
  height: 26px;
  color: var(--muted);
  font-size: 12px;
}

.project-folder-icon {
  position: relative;
  width: 16px;
  height: 12px;
  border: 1px solid currentColor;
  border-radius: 2px;
  color: var(--muted);
}

.project-folder-icon::before {
  position: absolute;
  top: -5px;
  left: 1px;
  width: 8px;
  height: 5px;
  border: 1px solid currentColor;
  border-bottom: 0;
  border-radius: 2px 2px 0 0;
  content: "";
}

.project-title {
  height: 28px;
  overflow: hidden;
  text-align: left;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 650;
}

.project-meta {
  min-width: 0;
  color: var(--muted);
  font-size: 12px;
}

.project-inline-action {
  width: 30px;
  height: 30px;
}

.project-chat-list {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 4px;
  padding-left: 22px;
}

.project-chat-empty {
  padding: 4px 10px 8px;
  color: var(--muted);
  font-size: 12px;
}

.sidebar-menu-wrap {
  position: relative;
  display: inline-flex;
  flex: 0 0 auto;
}

.sidebar-menu {
  position: absolute;
  top: 32px;
  right: 0;
  z-index: 50;
  display: none;
  min-width: 170px;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 16px 32px var(--shadow);
}

.sidebar-menu-wrap.open .sidebar-menu {
  display: flex;
  flex-direction: column;
}

.sidebar-menu-item {
  min-height: 34px;
  padding: 0 10px;
  border-radius: 7px;
  background: transparent;
  color: var(--text);
  text-align: left;
}

.sidebar-menu-item:hover,
.sidebar-menu-item:focus-visible {
  background: var(--panel-soft);
}

.sidebar-version {
  flex: 0 0 auto;
  padding: 2px 2px 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
  opacity: .72;
}

.chat-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px;
  width: 100%;
  min-height: 40px;
  padding: 8px 8px 8px 10px;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  overflow: visible;
  text-align: left;
}

.chat-item.active {
  background: var(--panel-soft);
  color: var(--text);
}

.chat-item-title {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sidebar-dialog-backdrop {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
  background: rgba(0, 0, 0, .55);
}

.sidebar-dialog {
  display: flex;
  width: min(420px, 100%);
  max-height: calc(100dvh - 36px);
  flex-direction: column;
  gap: 14px;
  overflow: auto;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
  color: var(--text);
  box-shadow: 0 24px 60px var(--shadow);
}

.sidebar-dialog h2 {
  margin: 0;
  font-size: 18px;
  line-height: 1.25;
}

.sidebar-dialog-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
}

.sidebar-dialog-input,
.sidebar-dialog-textarea {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #11100f;
  color: var(--text);
  font: inherit;
}

.sidebar-dialog-input {
  height: 40px;
  padding: 0 10px;
}

.sidebar-dialog-textarea {
  min-height: 170px;
  padding: 10px;
  resize: vertical;
}

.sidebar-dialog-copy {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
}

.sidebar-dialog-error {
  color: var(--danger);
  font-size: 13px;
}

.sidebar-dialog-options {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sidebar-dialog-help {
  color: var(--muted);
  font-size: 13px;
}

.sidebar-option {
  display: flex;
  min-height: 44px;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 3px;
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: transparent;
  color: var(--text);
  text-align: left;
}

.sidebar-option span {
  color: var(--muted);
  font-size: 12px;
}

.sidebar-option:hover,
.sidebar-option.selected {
  background: var(--panel-soft);
}

.sidebar-dialog-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.sidebar-dialog-primary,
.sidebar-dialog-secondary {
  min-height: 38px;
  padding: 0 12px;
  border-radius: 8px;
  font-weight: 650;
}

.sidebar-dialog-primary {
  background: var(--accent);
  color: #1a1308;
}

.sidebar-dialog-primary.danger {
  background: var(--danger);
  color: #fff;
}

.sidebar-dialog-secondary {
  background: var(--panel-soft);
  color: var(--text);
}

@media (hover: hover) and (pointer: fine) {
  .chat-item .sidebar-menu-button,
  .project-row .sidebar-menu-button,
  .project-row .project-inline-action {
    opacity: .62;
  }

  .chat-item:hover .sidebar-menu-button,
  .project-row:hover .sidebar-menu-button,
  .project-row:hover .project-inline-action,
  .sidebar-menu-button:focus-visible,
  .project-inline-action:focus-visible {
    opacity: 1;
  }
}