:host {
  display: block;
  height: 100%;
  overflow: hidden;
}

.agent-chat-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

// Header

.chat-header {
  align-items: center;
  border-bottom: 1px solid rgba(var(--dark-dividers));
  display: flex;
  flex-shrink: 0;
  justify-content: space-between;
  padding: 0.75rem 1rem;

  .chat-header-left {
    align-items: center;
    display: flex;
    gap: 0.5rem;

    ion-icon {
      color: rgba(var(--palette-primary-500), 1);
      font-size: 1.25rem;
    }

    h2 {
      font-size: 1rem;
      font-weight: 600;
      margin: 0;
    }
  }

  .chat-header-actions {
    align-items: center;
    display: flex;
    gap: 0.25rem;
  }
}

// Conversation list panel

.conversation-list-panel {
  border-bottom: 1px solid rgba(var(--dark-dividers));
  flex-shrink: 0;
  max-height: 40%;
  overflow-y: auto;
}

.conversation-list-header {
  align-items: center;
  display: flex;
  font-size: 0.8125rem;
  font-weight: 600;
  justify-content: space-between;
  padding: 0.5rem 1rem;
}

.new-chat-btn {
  align-items: center;
  background: none;
  border: 1px solid rgba(var(--palette-primary-500), 0.3);
  border-radius: 1rem;
  color: rgba(var(--palette-primary-500), 1);
  cursor: pointer;
  display: flex;
  font-size: 0.75rem;
  gap: 0.25rem;
  padding: 0.25rem 0.75rem;

  &:hover {
    background: rgba(var(--palette-primary-500), 0.08);
  }

  ion-icon {
    font-size: 0.875rem;
  }
}

.conversation-list-loading {
  padding: 0.5rem 1rem;
}

.conversation-list-empty {
  color: rgba(var(--dark-secondary-text));
  font-size: 0.8125rem;
  padding: 1rem;
  text-align: center;
}

.conversation-list-items {
  padding: 0 0.5rem 0.5rem;
}

.conversation-group-header {
  color: rgba(var(--dark-secondary-text));
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 0.5rem 0.5rem 0.25rem;
  text-transform: uppercase;
}

.conversation-item {
  align-items: center;
  border-radius: 0.5rem;
  cursor: pointer;
  display: flex;
  gap: 0.5rem;
  padding: 0.5rem;
  transition: background 150ms ease;

  &:hover {
    background: rgba(0, 0, 0, 0.04);
  }

  &.active {
    background: rgba(var(--palette-primary-500), 0.08);
  }
}

.conversation-item-content {
  flex: 1;
  min-width: 0;
}

.conversation-item-title {
  font-size: 0.8125rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.conversation-item-meta {
  color: rgba(var(--dark-secondary-text));
  font-size: 0.6875rem;
}

.load-more-btn {
  background: none;
  border: 1px solid rgba(var(--dark-dividers));
  border-radius: 0.5rem;
  color: rgba(var(--palette-primary-500), 1);
  cursor: pointer;
  font-size: 0.8125rem;
  margin-top: 0.25rem;
  padding: 0.5rem;
  transition: all 150ms ease;
  width: 100%;

  &:hover {
    background: rgba(var(--palette-primary-500), 0.08);
    border-color: rgba(var(--palette-primary-500), 0.3);
  }
}

.conversation-delete-btn {
  align-items: center;
  background: none;
  border: none;
  border-radius: 50%;
  color: rgba(var(--dark-secondary-text));
  cursor: pointer;
  display: flex;
  flex-shrink: 0;
  height: 1.75rem;
  justify-content: center;
  opacity: 0;
  transition: all 150ms ease;
  width: 1.75rem;

  .conversation-item:hover & {
    opacity: 1;
  }

  &:hover {
    background: rgba(0, 0, 0, 0.08);
    color: #c62828;
  }

  ion-icon {
    font-size: 0.875rem;
  }
}

// Loading history

.loading-history {
  align-items: center;
  display: flex;
  flex: 1;
  flex-direction: column;
  justify-content: center;
  padding: 2rem;
}

// Message list

.message-list {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  position: relative;
}

.empty-state {
  align-items: center;
  display: flex;
  height: 100%;
  justify-content: center;
}

.suggested-prompts {
  text-align: center;

  .suggested-title {
    color: rgba(var(--dark-secondary-text));
    font-size: 0.875rem;
    margin-bottom: 0.75rem;
  }

  .suggested-chip {
    background: rgba(var(--palette-primary-500), 0.08);
    border: 1px solid rgba(var(--palette-primary-500), 0.2);
    border-radius: 1rem;
    color: rgba(var(--palette-primary-500), 1);
    cursor: pointer;
    display: block;
    font-size: 0.8125rem;
    margin: 0 auto 0.5rem;
    padding: 0.5rem 1rem;
    transition: all 150ms ease;

    &:hover {
      background: rgba(var(--palette-primary-500), 0.16);
    }
  }
}

.truncation-notice {
  color: rgba(var(--dark-secondary-text));
  font-size: 0.75rem;
  margin-bottom: 0.5rem;
  text-align: center;
}

.thinking-indicator {
  padding: 0.75rem 1rem;
}

// Scroll FAB

.scroll-fab {
  background: rgba(var(--palette-primary-500), 1);
  border: none;
  border-radius: 50%;
  bottom: 5.5rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  color: white;
  cursor: pointer;
  font-size: 1.25rem;
  height: 2.25rem;
  position: absolute;
  right: 1rem;
  width: 2.25rem;
  z-index: 1;

  ion-icon {
    font-size: 1rem;
  }
}

// Input area

.input-area {
  border-top: 1px solid rgba(var(--dark-dividers));
  flex-shrink: 0;
  padding: 0.75rem 1rem;
}

.input-wrapper {
  align-items: flex-end;
  background: rgba(0, 0, 0, 0.04);
  border: 1px solid rgba(var(--dark-dividers));
  border-radius: 1rem;
  display: flex;
  padding: 0.5rem 0.75rem;
  transition: border-color 150ms ease;

  &:focus-within {
    border-color: rgba(var(--palette-primary-500), 0.5);
  }
}

.message-input {
  background: transparent;
  border: none;
  flex: 1;
  font-family: inherit;
  font-size: 0.875rem;
  line-height: 1.5;
  outline: none;
  resize: none;
}

.send-btn {
  align-items: center;
  background: rgba(var(--palette-primary-500), 1);
  border: none;
  border-radius: 50%;
  color: white;
  cursor: pointer;
  display: flex;
  flex-shrink: 0;
  height: 2rem;
  justify-content: center;
  margin-left: 0.5rem;
  transition: opacity 150ms ease;
  width: 2rem;

  &:disabled {
    cursor: default;
    opacity: 0.4;
  }

  ion-icon {
    font-size: 1rem;
  }
}

.stop-btn {
  align-items: center;
  background: #c62828;
  border: none;
  border-radius: 50%;
  color: white;
  cursor: pointer;
  display: flex;
  flex-shrink: 0;
  height: 2rem;
  justify-content: center;
  margin-left: 0.5rem;
  transition: background 150ms ease;
  width: 2rem;

  &:hover {
    background: #b71c1c;
  }

  ion-icon {
    font-size: 1.125rem;
  }
}

.char-counter {
  color: rgba(var(--dark-secondary-text));
  font-size: 0.6875rem;
  margin-top: 0.25rem;
  text-align: right;

  &.char-count-warning {
    color: #e65100;
  }

  &.char-count-danger {
    color: #c62828;
  }
}

// Dark mode

:host-context(.theme-dark) {
  .chat-header {
    border-color: rgba(var(--light-dividers));
  }

  .conversation-list-panel {
    border-color: rgba(var(--light-dividers));
  }

  .conversation-list-empty {
    color: rgba(var(--light-secondary-text));
  }

  .conversation-group-header {
    color: rgba(var(--light-secondary-text));
  }

  .conversation-item {
    &:hover {
      background: rgba(255, 255, 255, 0.06);
    }
  }

  .conversation-item-meta {
    color: rgba(var(--light-secondary-text));
  }

  .load-more-btn {
    border-color: rgba(var(--light-dividers));
  }

  .conversation-delete-btn {
    color: rgba(var(--light-secondary-text));

    .conversation-item:hover & {
      opacity: 1;
    }

    &:hover {
      background: rgba(255, 255, 255, 0.08);
    }
  }

  .suggested-prompts {
    .suggested-title {
      color: rgba(var(--light-secondary-text));
    }
  }

  .truncation-notice {
    color: rgba(var(--light-secondary-text));
  }

  .input-area {
    border-color: rgba(var(--light-dividers));
  }

  .input-wrapper {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(var(--light-dividers));
  }

  .message-input {
    color: rgba(var(--light-primary-text));
  }

  .char-counter {
    color: rgba(var(--light-secondary-text));
  }
}

// Mobile

.mobile {
  .message-list {
    padding: 0.75rem;
  }
}

// Dialog panel override
::ng-deep .agent-chat-dialog {
  .mat-mdc-dialog-container {
    padding: 0;
  }

  .mat-mdc-dialog-surface {
    border-radius: 0.75rem;
  }
}