.chat-layout {
  position: relative;
  flex: 1;
  display: flex;
  min-height: 0;
}

.chat-container,
.minimal-chat {
  flex: 1;
  overflow-y: auto;
  padding: 12px 16px 18px;
  min-height: 0;
  scroll-behavior: smooth;
}

.minimal-chat {
  padding-top: 18px;
}

.chat-content,
.minimal-content {
  min-height: 100%;
}

.quick-actions {
  display: flex;
  gap: var(--space-xs);
  overflow-x: auto;
  padding: var(--space-sm) var(--space-md) var(--space-xs);
}

.input-section,
.minimal-input {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  padding: 0 var(--space-md) var(--safe-bottom);
}

.input-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xs);
}

.loading-state,
.empty-state,
.history-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: var(--space-xs);
  min-height: 180px;
  color: var(--text-muted);
}

.history-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xs);
  width: 100%;
  text-align: left;
  padding: 12px 14px;
  border-radius: 14px;
  border: var(--border-width) solid var(--border);
  background: var(--bg-card);
}

.history-item.active {
  border-color: var(--accent-border);
  background: var(--accent-soft);
}

.stat-micro {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

.snapshot-shell {
  color: var(--text-main);
}

.snapshot-shell pre {
  position: relative;
}

.mobile-copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  border: var(--border-width) solid var(--snapshot-border);
  background: var(--snapshot-card);
  color: var(--text-soft);
  cursor: pointer;
}

@media (min-width: 980px) {
  .chat-layout {
    display: grid;
    grid-template-columns: 1fr min(420px, 38vw);
  }
}