.xz-sidebar-toggle {
  position: fixed;
  right: 22px;
  bottom: 24px;
  z-index: 70;
  min-width: 64px;
  min-height: 48px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--accent);
  box-shadow: var(--shadow);
  color: var(--text-on-primary);
  cursor: pointer;
  font: 800 0.95rem var(--font-body);
  padding: 0 16px;
}

.xz-sidebar-toggle.is-locked {
  opacity: 0.72;
}

.xz-sidebar[hidden] {
  display: none;
}

.xz-sidebar {
  position: fixed;
  inset: 0;
  z-index: 80;
}

.xz-sidebar-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(5, 18, 20, 0.28);
}

.xz-sidebar-panel {
  position: absolute;
  top: 0;
  right: 0;
  display: grid;
  grid-template-rows: auto 1fr auto;
  width: min(380px, 100vw);
  height: 100%;
  border-left: 1px solid var(--line-strong);
  background: var(--paper-strong);
  box-shadow: var(--shadow);
}

.xz-sidebar-head {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 8px;
  align-items: center;
  border-bottom: 1px solid var(--line);
  padding: 14px;
}

.xz-sidebar-clear,
.xz-sidebar-close,
.xz-sidebar-input button,
.xz-quick-prompt {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper-soft);
  color: var(--ink-soft);
  cursor: pointer;
  font: inherit;
  font-weight: 800;
  padding: 8px 10px;
}

.xz-sidebar-close {
  min-width: 38px;
  font-size: 1.25rem;
  line-height: 1;
}

.xz-sidebar-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow-y: auto;
  padding: 14px;
}

.xz-msg {
  display: flex;
}

.xz-msg p {
  max-width: 86%;
  margin: 0;
  border-radius: 8px;
  line-height: 1.65;
  overflow-wrap: anywhere;
  padding: 10px 12px;
  white-space: pre-wrap;
}

.xz-msg-user {
  justify-content: flex-end;
}

.xz-msg-user p {
  background: var(--accent);
  color: var(--text-on-primary);
}

.xz-msg-bot p,
.xz-msg-tip {
  border: 1px solid var(--line);
  background: var(--paper-soft);
  color: var(--ink);
}

.xz-msg-tip {
  border-radius: 8px;
  line-height: 1.7;
  padding: 12px;
}

.xz-msg-tip a {
  color: var(--accent);
  font-weight: 900;
}

.xz-sidebar-input {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  border-top: 1px solid var(--line);
  padding: 12px;
}

.xz-sidebar-input textarea {
  min-height: 48px;
  max-height: 160px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  color: var(--ink);
  font: inherit;
  resize: vertical;
  padding: 10px;
}

.xz-sidebar-input button {
  background: var(--accent);
  color: var(--text-on-primary);
}

.xz-quick-prompts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

@media (max-width: 720px) {
  .xz-sidebar-panel {
    width: 100vw;
    border-left: 0;
  }

  .xz-sidebar-toggle {
    right: 14px;
    bottom: 16px;
  }
}