/* 页面基础 - 与项目主题统一 */
:root {
  --bg-start: #0a0e27;
  --bg-end: #1a0f3d;
  --card-bg: rgba(15, 18, 45, 0.85);
  --text: #f0f4ff;
  --muted: rgba(240, 244, 255, 0.72);
  --accent: #4f7fff;
  --accent-2: #a855ff;
  --accent-3: #ff6b6b;
  --success: #4caf50;
  --warning: #ff9800;
  --shadow: 0 24px 48px rgba(0, 0, 0, 0.6);
  --border: rgba(255, 255, 255, 0.1);
  --radius: 16px;
  --font-mono: "JetBrains Mono", "SF Mono", "Fira Code", "Cascadia Code", "Consolas", monospace;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at 20% 25%, rgba(79, 127, 255, 0.4), transparent 45%),
    radial-gradient(circle at 80% 35%, rgba(168, 85, 255, 0.35), transparent 50%),
    radial-gradient(circle at 50% 90%, rgba(255, 107, 107, 0.2), transparent 50%),
    linear-gradient(135deg, var(--bg-start), var(--bg-end));
  color: var(--text);
  overflow-x: hidden;
}

.page {
  min-height: 100vh;
  width: 100%;
  display: block;
  padding: 0;
}

.scene {
  position: relative;
  width: 100%;
  min-height: 100vh;
  padding: 0;
}

.glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(circle at 35% 40%, rgba(79, 127, 255, 0.3), transparent 50%),
    radial-gradient(circle at 65% 25%, rgba(168, 85, 255, 0.25), transparent 50%),
    radial-gradient(circle at 50% 85%, rgba(255, 107, 107, 0.15), transparent 45%);
  filter: blur(28px);
  animation: drift 20s ease-in-out infinite;
  border-radius: 0;
}

@keyframes drift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(8px, -14px) scale(1.03); }
}

.card {
  position: relative;
  width: 100%;
  min-height: 100vh;
  padding: 40px;
  border-radius: 0;
  background: var(--card-bg);
  box-shadow: none;
  border: 0;
  backdrop-filter: blur(16px);
  overflow: hidden;
  z-index: 1;
}

/* ------------------------------------------------------
   Header
   ------------------------------------------------------ */
.header {
  position: relative;
  margin-bottom: 32px;
  text-align: center;
  min-height: 40px;
}

.back-button {
  position: absolute;
  top: 0;
  left: 0;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid rgba(79, 127, 255, 0.45);
  background: linear-gradient(135deg, rgba(79, 127, 255, 0.22), rgba(168, 85, 255, 0.16));
  color: var(--text);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
  line-height: 1;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.back-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 20px rgba(79, 127, 255, 0.28);
  border-color: rgba(79, 127, 255, 0.75);
}

.back-button:active {
  transform: translateY(0);
}

.back-icon {
  font-size: 1rem;
}

.title {
  margin: 0;
  font-size: clamp(2rem, 5vw, 2.5rem);
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #4f7fff, #a855ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  margin: 8px 0 0;
  font-size: clamp(0.95rem, 2.4vw, 1.1rem);
  color: var(--muted);
}

.section {
  margin-bottom: 24px;
}

/* ------------------------------------------------------
   Prompt Box
   ------------------------------------------------------ */
.prompt-box {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(79, 127, 255, 0.15), rgba(168, 85, 255, 0.1));
  border: 1px solid rgba(79, 127, 255, 0.3);
  animation: pulse-border 3s ease-in-out infinite;
}

.prompt-icon {
  font-size: 1.6rem;
  animation: bounce 2s ease-in-out infinite;
}

.prompt-text {
  margin: 0;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
}

@keyframes pulse-border {
  0%, 100% { box-shadow: 0 0 0 0 rgba(79, 127, 255, 0.4); }
  50% { box-shadow: 0 0 0 8px rgba(79, 127, 255, 0); }
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

/* ------------------------------------------------------
   Toolbar
   ------------------------------------------------------ */
.toolbar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.toolbar-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: linear-gradient(135deg, rgba(79, 127, 255, 0.18), rgba(168, 85, 255, 0.12));
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease, opacity 160ms ease;
  line-height: 1;
}

.toolbar-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.3);
  background: linear-gradient(135deg, rgba(79, 127, 255, 0.3), rgba(168, 85, 255, 0.22));
}

.toolbar-btn:active {
  transform: translateY(0);
}

.toolbar-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.toolbar-btn.format-btn {
  border-color: rgba(79, 127, 255, 0.4);
}

.toolbar-btn.minify-btn {
  border-color: rgba(168, 85, 255, 0.4);
}

.toolbar-btn.validate-btn {
  border-color: rgba(76, 175, 80, 0.4);
}

.toolbar-btn.import-btn {
  border-color: rgba(76, 175, 80, 0.4);
}

.toolbar-btn.copy-btn {
  border-color: rgba(255, 152, 0, 0.4);
}

.toolbar-btn.export-btn {
    border-color: rgba(79, 127, 255, 0.4);
}
.toolbar-btn.clear-btn {
  border-color: rgba(255, 107, 107, 0.4);
}

.btn-icon {
  font-size: 1.1rem;
}

/* ------------------------------------------------------
   Editor Container (split pane)
   ------------------------------------------------------ */
.editor-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.editor-pane {
  display: flex;
  flex-direction: column;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(0, 0, 0, 0.3);
  overflow: hidden;
  min-height: 200px;
}

.pane-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 16px;
  background: rgba(0, 0, 0, 0.25);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  flex-shrink: 0;
}

.pane-tabs {
  display: flex;
  align-items: center;
  gap: 12px;
}

.pane-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.03em;
}

.view-tab {
  font-size: 0.78rem;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: transparent;
  color: rgba(240, 244, 255, 0.5);
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease;
  user-select: none;
}

.view-tab:hover {
  background: rgba(79, 127, 255, 0.12);
  color: rgba(240, 244, 255, 0.8);
  border-color: rgba(79, 127, 255, 0.3);
}

.view-tab.active {
  background: rgba(79, 127, 255, 0.2);
  color: var(--text);
  border-color: rgba(79, 127, 255, 0.45);
}

.pane-stats {
  font-size: 0.78rem;
  color: rgba(240, 244, 255, 0.5);
  font-family: var(--font-mono);
}

.json-editor {
  flex: 1;
  width: 100%;
  min-height: 320px;
  padding: 16px;
  border: none;
  background: transparent;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.6;
  resize: vertical;
  outline: none;
  tab-size: 2;
}

.json-editor::placeholder {
  color: rgba(240, 244, 255, 0.3);
}

.output-wrapper {
  flex: 1;
  overflow: auto;
  min-height: 320px;
  max-height: 600px;
}

.json-output {
  margin: 0;
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.6;
  word-break: break-word;
  color: var(--text);
  tab-size: 2;
  white-space: pre-wrap;
}

/* ------------------------------------------------------
   JSON 树形视图
   ------------------------------------------------------ */
.json-tree {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--text);
  white-space: normal;
}

/* 行 — 每个属性/元素一行 */
.json-row {
  display: block;
  padding-left: 0;
  line-height: 1.7;
}

/* 条目容器 — 用于包裹对象/数组的整个结构 */
.json-entry {
  display: inline;
}

/* 根级条目（最外层大括号前不额外缩进） */
.json-root {
  display: block;
}

/* 折叠/展开按钮 */
.json-toggle {
  display: inline-block;
  width: 14px;
  height: 14px;
  line-height: 14px;
  text-align: center;
  font-size: 0.65rem;
  color: #7f848e;
  cursor: default;
  user-select: none;
  vertical-align: middle;
  margin-right: 2px;
}

.json-toggle.collapsible {
  cursor: pointer;
  color: #9ca3af;
  transition: color 120ms ease;
}

.json-toggle.collapsible:hover {
  color: #e5c07b;
}

/* 子节点容器 — 缩进 + 左侧竖线 */
.json-children {
  display: block;
  padding-left: 20px;
  border-left: 1px solid rgba(229, 192, 123, 0.15);
  margin-left: 6px;
}

/* 括号 */
.json-bracket {
  color: #7f848e;
}

/* 省略号（折叠时显示） */
.json-ellipsis {
  color: #7f848e;
  font-style: italic;
  font-size: 0.82rem;
}

/* 键名 */
.json-key {
  color: #e5c07b;
}

/* 冒号 */
.json-colon {
  color: #7f848e;
  margin-right: 2px;
}

/* 逗号 */
.json-comma {
  color: #7f848e;
}

/* 底部关闭括号行 — 取消缩进复位 */
.json-entry-footer {
  padding-left: 0;
}

/* ── 语法着色 ── */
.json-string {
  color: #98c379;
}

.json-number {
  color: #d19a66;
}

.json-boolean {
  color: #c678dd;
}

.json-null {
  color: #7f848e;
  font-style: italic;
}

/* ── 类型标注 ── */
.json-type-label {
  display: inline-block;
  font-size: 0.6rem;
  font-weight: 500;
  font-style: normal;
  color: rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 3px;
  padding: 0 4px;
  margin-left: 4px;
  line-height: 1.3;
  vertical-align: middle;
  letter-spacing: 0.02em;
}

/* ------------------------------------------------------
   Error Box
   ------------------------------------------------------ */
.error-box {
  padding: 16px 20px;
  border-radius: 12px;
  background: rgba(255, 107, 107, 0.12);
  border: 1px solid rgba(255, 107, 107, 0.35);
}

.error-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

.error-icon {
  font-size: 1.2rem;
}

.error-title {
  font-weight: 600;
  color: var(--accent-3);
  font-size: 0.95rem;
}

.error-detail {
  margin: 0;
  padding: 12px 16px;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.3);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  color: #ffab91;
}

/* ------------------------------------------------------
   Examples
   ------------------------------------------------------ */
.examples-container {
  padding: 14px 18px;
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(79, 127, 255, 0.15);
}

.examples-label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  font-weight: 500;
  margin-bottom: 10px;
}

.example-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.example-chip {
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid rgba(79, 127, 255, 0.3);
  background: rgba(79, 127, 255, 0.1);
  color: var(--text);
  font-size: 0.82rem;
  cursor: pointer;
  transition: background 160ms ease, transform 160ms ease, border-color 160ms ease;
  font-family: var(--font-mono);
  white-space: nowrap;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
}

.example-chip:hover {
  background: rgba(79, 127, 255, 0.25);
  border-color: rgba(79, 127, 255, 0.6);
  transform: translateY(-1px);
}

.example-chip:active {
  transform: translateY(0);
}

/* ------------------------------------------------------
   Privacy
   ------------------------------------------------------ */
.privacy-section {
  margin-top: 32px;
}

.privacy-note {
  padding: 14px 18px;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 0.82rem;
  color: var(--muted);
  text-align: center;
  margin: 0;
}

/* ------------------------------------------------------
   Responsive
   ------------------------------------------------------ */
@media (max-width: 768px) {
  .card {
    padding: 24px 16px;
  }

  .editor-container {
    grid-template-columns: 1fr;
  }

  .json-editor {
    min-height: 200px;
  }

  .output-wrapper {
    min-height: 200px;
    max-height: 400px;
  }

  .toolbar {
    gap: 8px;
  }

  .toolbar-btn {
    padding: 8px 14px;
    font-size: 0.82rem;
  }

  .btn-text {
    display: none;
  }
}