/**
 * @license
 * Copyright 2025 Qwen Team
 * SPDX-License-Identifier: Apache-2.0
 */

@tailwind base;
@tailwind components;
@tailwind utilities;

/* ===========================
   Reusable Component Classes
   =========================== */
@layer components {
  .btn-ghost {
    @apply bg-transparent border border-transparent rounded cursor-pointer outline-none transition-colors duration-200;
    color: var(--app-primary-foreground);
    font-size: var(--vscode-chat-font-size, 13px);
    border-radius: 4px;
  }

  .btn-ghost:hover,
  .btn-ghost:focus {
    background: var(--app-ghost-button-hover-background);
  }

  .btn-sm {
    @apply p-small;
  }

  .btn-md {
    @apply py-small px-medium;
  }

  .icon-sm {
    @apply w-4 h-4;
  }

  /* Composer: root container anchored to bottom*/
  .composer-root {
    @apply absolute bottom-4 left-4 right-4 flex flex-col z-20;
  }

  /* Composer: form wrapper */
  .composer-form {
    @apply relative flex flex-col max-w-[680px] mx-auto rounded-large border shadow-sm transition-colors duration-200 z-[1];
    background: var(--app-input-secondary-background);
    border-color: var(--app-input-border);
    color: var(--app-input-foreground);
  }
  .composer-form:focus-within {
    /* match existing highlight behavior */
    border-color: var(--app-input-highlight);
    box-shadow: 0 1px 2px color-mix(in srgb, var(--app-input-highlight), transparent 80%);
  }

  /* Composer: input editable area */
  .composer-input {
    /* Use plain CSS for font-family inheritance; Tailwind has no `font-inherit` utility */
    @apply flex-1 self-stretch py-2.5 px-3.5 outline-none overflow-y-auto relative select-text min-h-[1.5em] max-h-[200px] bg-transparent border-0 rounded-none overflow-x-hidden break-words whitespace-pre-wrap;
    font-family: inherit;
    font-size: var(--vscode-chat-font-size, 13px);
    color: var(--app-input-foreground);
  }
  /* Show placeholder when truly empty OR when flagged as empty via data attribute.
     The data attribute is needed because some browsers insert a <br> in
     contentEditable, which breaks :empty matching. */
  .composer-input:empty:before,
  .composer-input[data-empty="true"]::before {
    content: attr(data-placeholder);
    color: var(--app-input-placeholder-foreground);
    pointer-events: none;
    position: absolute;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: calc(100% - 28px);
  }
  .composer-input:focus {
    outline: none;
  }
  .composer-input:disabled,
  .composer-input[contenteditable="false"] {
    color: #999;
    cursor: not-allowed;
  }

  /* Composer: actions row (more compact) */
  .composer-actions {
    @apply flex items-center gap-1 min-w-0 z-[1];
    padding: 5px;
    color: var(--app-secondary-foreground);
    border-top: 0.5px solid var(--app-input-border);
  }

  /* Text button (icon + label) */
  .btn-text-compact {
    @apply inline-flex items-center gap-1 px-1 py-0.5 rounded-[2px] cursor-pointer appearance-none bg-transparent border-0 min-w-0 shrink text-[0.85em] transition-colors duration-150;
    color: var(--app-secondary-foreground);
  }
  .btn-text-compact--primary {
    color: var(--app-secondary-foreground);
    /* color: var(--app-primary-foreground); */
  }
  .btn-text-compact:hover {
    background-color: var(--app-ghost-button-hover-background);
  }
  .btn-text-compact:active:not(:disabled) {
    filter: brightness(1.1);
  }
  .btn-text-compact > svg {
    height: 1em;
    width: 1em;
    flex-shrink: 0;
  }
  .btn-text-compact > span {
    display: inline-block;
    min-width: 0;
    max-width: 200px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    vertical-align: middle;
  }

  @media screen and (max-width: 300px) {
    .btn-text-compact > svg {
      display: none;
    }
  }

  /* Icon-only button, compact square (26x26) */
  .btn-icon-compact {
    @apply inline-flex items-center justify-center w-[26px] h-[26px] p-0 rounded-small bg-transparent border border-transparent cursor-pointer shrink-0 transition-all duration-150;
    color: var(--app-secondary-foreground);
  }
  .btn-icon-compact:hover {
    background-color: var(--app-ghost-button-hover-background);
  }
  .btn-icon-compact > svg {
    @apply w-4 h-4;
  }
  /* Active/primary state for icon button (e.g., Thinking on) */
  .btn-icon-compact--active {
    background-color: var(--app-qwen-clay-button-orange);
    color: var(--app-qwen-ivory);
  }
  .btn-icon-compact--active > svg {
    stroke: var(--app-qwen-ivory);
    fill: var(--app-qwen-ivory);
  }

  .composer-overlay {
    @apply absolute inset-0 rounded-large z-0;
    background: var(--app-input-background);
  }

  /* Optional: send button variant */
  .btn-send-compact {
    @apply btn-icon-compact ml-auto hover:brightness-110 disabled:opacity-40 disabled:cursor-not-allowed;
    background-color: var(--app-qwen-clay-button-orange);
    color: var(--app-qwen-ivory);
  }

  /*
   * File path styling inside tool call content
   * Applies to: .toolcall-content-wrapper .file-link-path
   * - Use monospace editor font
   * - Slightly smaller size
   * - Link color
   * - Tighten top alignment and allow aggressive breaking for long paths
   */
  .toolcall-content-wrapper .file-link-path {
    /* Tailwind utilities where possible */
    @apply text-[0.85em] pt-px break-all min-w-0;
    /* Not covered by Tailwind defaults: use CSS vars / properties */
    font-family: var(--app-monospace-font-family);
    color: var(--app-link-color);
    overflow-wrap: anywhere;
  }
}

/* ===========================
   Utilities
   =========================== */
@layer utilities {
  /* Multi-line clamp with ellipsis (Chromium-based webview supported) */
  .q-line-clamp-3 {
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    overflow: hidden;
  }
}