/* ============================================================
   🌈 萌码 Python (CodePanda IDE) - 少儿儿童专属 Python 在线工坊
   设计风格：柔和梦幻渐变、Q弹圆角卡片、生动交互反馈、视力友好
   ============================================================ */

:root {
  /* 品牌色盘 - 充满好奇心与童趣的魔法科技感 */
  --primary: #5B5FED;
  --primary-hover: #474BD8;
  --primary-light: #EEF0FF;
  --primary-glow: rgba(91, 95, 237, 0.25);
  
  --success: #10B981;
  --success-hover: #059669;
  --success-light: #ECFDF5;
  --success-glow: rgba(16, 185, 129, 0.3);
  
  --warning: #F59E0B;
  --warning-light: #FFFBEB;
  
  --danger: #EF4444;
  --danger-light: #FEF2F2;

  --accent-pink: #F472B6;
  --accent-purple: #A855F7;
  --accent-cyan: #06B6D4;
  --accent-yellow: #FBBF24;

  /* 背景与面板 */
  --bg-app: #F0F4FD;
  --bg-gradient: linear-gradient(135deg, #F0F4FD 0%, #E8EEFB 50%, #F5F3FF 100%);
  --panel-bg: #FFFFFF;
  --panel-bg-glass: rgba(255, 255, 255, 0.88);
  --border-color: #E2E8F0;
  --border-soft: #EEF2F6;

  /* 文字 */
  --text-main: #1E293B;
  --text-muted: #64748B;
  --text-light: #94A3B8;

  /* 控制台与暗色区 */
  --term-bg: #1E1E2E;
  --term-header: #181825;
  --term-text: #CDD6F4;
  --term-prompt: #A6E3A1;
  --term-err: #F38BA8;

  /* 阴影与圆角 */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 9999px;
  
  --shadow-sm: 0 2px 6px rgba(100, 116, 139, 0.06);
  --shadow-md: 0 8px 20px rgba(100, 116, 139, 0.08);
  --shadow-lg: 0 16px 36px rgba(91, 95, 237, 0.12);
  --shadow-popup: 0 20px 40px rgba(15, 23, 42, 0.15);

  --font-ui: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-code: "JetBrains Mono", "Fira Code", Consolas, Menlo, monospace;
}

/* 深色模式适配（可选夜间太空模式） */
body.dark-mode {
  --bg-app: #0F111A;
  --bg-gradient: linear-gradient(135deg, #0B0D14 0%, #111422 50%, #15162B 100%);
  --panel-bg: #1A1D2B;
  --panel-bg-glass: rgba(26, 29, 43, 0.92);
  --border-color: #2E344A;
  --border-soft: #24293C;
  --text-main: #F1F5F9;
  --text-muted: #94A3B8;
  --text-light: #64748B;
  --term-bg: #12141F;
  --term-header: #0D0F17;
  --primary-light: rgba(91, 95, 237, 0.18);
  --success-light: rgba(16, 185, 129, 0.18);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
}

/* ================= 基础重置 ================= */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-ui);
  background: var(--bg-gradient);
  color: var(--text-main);
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* ================= 顶部导航栏 ================= */
.app-header {
  height: 50px;
  background: var(--panel-bg-glass);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  padding: 0 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
  z-index: 50;
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-logo-wrap {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #FF6B8B 0%, #FFA07A 50%, #5B5FED 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: 0 4px 12px rgba(255, 107, 139, 0.35);
  animation: floatBounce 3s ease-in-out infinite alternate;
}

@keyframes floatBounce {
  0% { transform: translateY(0px) rotate(0deg); }
  100% { transform: translateY(-3px) rotate(3deg); }
}

.brand-title {
  font-size: 16px;
  font-weight: 800;
  background: linear-gradient(135deg, #3B41C5 0%, #A855F7 50%, #EC4899 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
}

.brand-badge {
  font-size: 11px;
  font-weight: 700;
  background: linear-gradient(135deg, #FEF08A, #FDE047);
  color: #854D0E;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  box-shadow: 0 2px 5px rgba(234, 179, 8, 0.25);
  -webkit-text-fill-color: #854D0E;
}

/* 顶部操作区 */
.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* 运行大按钮 - 专为儿童打造的大尺寸、高视觉引力按钮 */
.btn-run-magic {
  background: linear-gradient(135deg, #10B981 0%, #059669 100%);
  color: #FFFFFF;
  border: none;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 700;
  border-radius: var(--radius-pill);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 4px 16px var(--success-glow);
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn-run-magic:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 8px 24px rgba(16, 185, 129, 0.45);
}

.btn-run-magic:active {
  transform: translateY(1px) scale(0.98);
}

.btn-run-magic .run-icon {
  font-size: 18px;
  animation: pulseRocket 1.8s infinite;
}

@keyframes pulseRocket {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(1px, -2px) scale(1.15); }
}

.btn-run-magic.running {
  background: linear-gradient(135deg, #EF4444 0%, #DC2626 100%);
  box-shadow: 0 4px 16px rgba(239, 68, 68, 0.35);
}

/* 辅助操作按钮 */
.header-btn {
  height: 32px;
  padding: 0 10px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-color);
  background: var(--panel-bg);
  color: var(--text-main);
  font-size: 12px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-sm);
  white-space: nowrap;
}

.header-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
  transform: translateY(-1px);
}

/* 引擎准备就绪状态标签 */
.engine-status-pill {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  background: var(--primary-light);
  border-radius: var(--radius-pill);
  font-size: 11px;
  font-weight: 600;
  color: var(--primary);
  white-space: nowrap;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10B981;
  box-shadow: 0 0 8px #10B981;
}

.status-dot.loading {
  background: #F59E0B;
  box-shadow: 0 0 8px #F59E0B;
  animation: blink 1.2s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.7); }
}

.status-dot.error {
  background: #EF4444;
  box-shadow: 0 0 8px #EF4444;
}

/* ================= 主工作区三栏/两栏自适应布局 ================= */
.app-workspace {
  flex: 1;
  display: grid;
  grid-template-columns: 190px 1fr 320px;
  gap: 8px;
  padding: 8px;
  height: calc(100vh - 50px);
  overflow: hidden;
  position: relative;
}

/* 面板通用样式 */
.workspace-panel {
  background: var(--panel-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

/* 面板头部 */
.panel-header {
  height: 40px;
  background: var(--panel-bg);
  border-bottom: 1px solid var(--border-soft);
  padding: 0 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.panel-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.panel-title .title-icon {
  font-size: 16px;
}

.panel-tools {
  display: flex;
  align-items: center;
  gap: 6px;
}

.icon-btn {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.15s;
}

.icon-btn:hover {
  background: var(--primary-light);
  color: var(--primary);
}

/* ================= 1. 左侧：文件树与积木代码栏 ================= */
.filetree-panel {
  display: flex;
  flex-direction: column;
}

.file-tree-container {
  flex: 1;
  overflow-y: auto;
  padding: 10px;
}

.file-section-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-light);
  padding: 6px 8px 4px 8px;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* 文件树列表条目 */
.file-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 8px;
  border-radius: var(--radius-md);
  margin-bottom: 3px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-main);
  border: 1px solid transparent;
}

.file-item:hover {
  background: #F1F5F9;
  transform: translateX(2px);
}

body.dark-mode .file-item:hover {
  background: #24293C;
}

.file-item.active {
  background: var(--primary-light);
  color: var(--primary);
  border-color: rgba(91, 95, 237, 0.25);
  font-weight: 700;
}

/* 已关闭标签的文件在文件树中显示为灰色斜体 */
.file-item.closed-tab {
  opacity: 0.65;
  font-style: italic;
}

.file-item.closed-tab:hover {
  opacity: 1;
  font-style: normal;
}

.file-info {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  flex: 1;
}

.file-icon {
  font-size: 16px;
  flex-shrink: 0;
}

.file-name {
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-actions {
  display: none;
  gap: 2px;
}

.file-item:hover .file-actions {
  display: flex;
}

.file-action-btn {
  width: 22px;
  height: 22px;
  border-radius: 4px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
}

.file-action-btn:hover {
  background: #E2E8F0;
  color: var(--danger);
}

/* 常用魔法积木代码盒子（针对10岁儿童贴心设计） */
.snippets-section {
  border-top: 1px solid var(--border-soft);
  background: #FAFBFF;
  padding: 10px;
  max-height: 230px;
  overflow-y: auto;
}

body.dark-mode .snippets-section {
  background: #141724;
}

.snippets-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.snippet-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.snippet-chip {
  font-size: 10px;
  font-weight: 600;
  padding: 4px 8px;
  background: var(--panel-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.03);
  white-space: nowrap;
}

.snippet-chip:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
  transform: translateY(-1px);
}

/* ================= 编辑器上方积木代码栏 ================= */
.snippets-bar {
  flex-shrink: 0;
  background: var(--panel-bg);
  border-bottom: 1px solid var(--border-soft);
  padding: 6px 10px;
  max-height: 80px;
  overflow: hidden;
  transition: max-height 0.25s ease;
}

.snippets-bar.collapsed {
  max-height: 36px;
}

.snippets-bar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 5px;
}

.snippets-bar-toggle {
  background: none;
  border: none;
  color: var(--text-light);
  cursor: pointer;
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 4px;
  transition: transform 0.2s;
}

.snippets-bar.collapsed .snippets-bar-toggle {
  transform: rotate(180deg);
}

.snippets-bar .snippet-chip-list {
  gap: 5px;
}

.snippets-bar .snippet-chip {
  font-size: 9.5px;
  padding: 3px 7px;
}

/* ================= 2. 中间：代码编辑器 ================= */
.editor-panel {
  display: flex;
  flex-direction: column;
}

/* 编辑器标签页 */
.editor-tabs-bar {
  height: 40px;
  background: var(--panel-bg);
  border-bottom: 1px solid var(--border-soft);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 6px;
  overflow-x: auto;
}

.editor-tabs-list {
  display: flex;
  align-items: center;
  gap: 3px;
  overflow-x: auto;
  flex: 1;
  min-width: 0;
}

.editor-tab {
  height: 32px;
  max-width: 140px;
  padding: 0 8px;
  background: #F1F5F9;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  border: 1px solid transparent;
  border-bottom: none;
  transition: all 0.2s;
  flex-shrink: 0;
  position: relative;
}

.editor-tab span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100px;
}

body.dark-mode .editor-tab {
  background: #24293C;
}

.editor-tab.active {
  background: var(--panel-bg);
  color: var(--primary);
  border-color: var(--border-color);
  border-top: 2px solid var(--primary);
}

.editor-tab-close {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  line-height: 1;
  opacity: 0.5;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  flex-shrink: 0;
  margin-left: 2px;
  padding: 0;
}

.editor-tab-close:hover {
  background: #CBD5E1;
  opacity: 1;
  color: var(--danger);
}

/* 标签栏占位提示（所有标签都关闭时显示） */
.editor-tab-placeholder {
  font-size: 12px;
  color: var(--text-light);
  padding: 0 12px;
  font-weight: 600;
  height: 32px;
  display: flex;
  align-items: center;
  white-space: nowrap;
}

/* 编辑器快捷工具栏（字体缩放、标点医生、格式化） */
.editor-quick-tools {
  display: flex;
  align-items: center;
  gap: 6px;
}

.magic-fix-btn {
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  background: linear-gradient(135deg, #FEF3C7, #FDE68A);
  color: #92400E;
  border: 1px solid #FCD34D;
  border-radius: var(--radius-pill);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 3px;
  box-shadow: 0 2px 6px rgba(245, 158, 11, 0.15);
  transition: all 0.2s;
  white-space: nowrap;
}

.magic-fix-btn:hover {
  transform: translateY(-1px);
  background: #FDE68A;
}

/* 编辑器核心容器 */
.editor-body-wrapper {
  flex: 1;
  position: relative;
  overflow: hidden;
  background: var(--panel-bg);
}

.CodeMirror {
  height: 100% !important;
  font-family: var(--font-code);
  font-size: 15px;
  line-height: 1.6;
  background: var(--panel-bg);
  color: var(--text-main);
}

.CodeMirror-gutters {
  background: var(--panel-bg);
  border-right: 1px solid var(--border-soft);
}

.CodeMirror-linenumber {
  color: var(--text-light);
  padding: 0 5px;
}

body.dark-mode .CodeMirror {
  background: #1A1D2B;
  color: #F1F5F9;
}

body.dark-mode .CodeMirror-gutters {
  background: #1A1D2B;
  border-right: 1px solid var(--border-soft);
}

body.dark-mode .CodeMirror-cursor {
  border-left: 2px solid #89B4FA;
}

/* 暗色模式下的语法高亮配色（默认 token 色在深背景上太暗不可读） */
body.dark-mode .cm-keyword { color: #89B4FA; font-weight: 600; }
body.dark-mode .cm-string { color: #A6E3A1; }
body.dark-mode .cm-number { color: #FAB387; }
body.dark-mode .cm-comment { color: #7F849C; font-style: italic; }
body.dark-mode .cm-def { color: #89DCEB; }
body.dark-mode .cm-builtin { color: #F9E2AF; }
body.dark-mode .cm-operator { color: #94E2D5; }
body.dark-mode .cm-variable { color: #CDD6F4; }
body.dark-mode .cm-property { color: #89DCEB; }
body.dark-mode .CodeMirror-selected { background: rgba(137, 180, 250, 0.25); }
body.dark-mode .CodeMirror-matchingbracket { background: rgba(166, 227, 161, 0.3); color: #A6E3A1 !important; }

/* 亮色模式选中色微调，与品牌色呼应 */
::selection { background: rgba(91, 95, 237, 0.22); }
.CodeMirror-selected { background: rgba(91, 95, 237, 0.16); }

#codeEditorArea {
  width: 100%;
  height: 100%;
  padding: 14px;
  font-family: var(--font-code);
  font-size: 16px;
  line-height: 1.6;
  border: none;
  outline: none;
  background: var(--panel-bg);
  color: var(--text-main);
  resize: none;
}

/* 编辑器底部状态条 */
.editor-status-bar {
  height: 26px;
  background: var(--panel-bg);
  border-top: 1px solid var(--border-soft);
  padding: 0 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 10px;
  color: var(--text-light);
}

/* 自动保存指示器 */
.auto-save-indicator {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--success);
  font-weight: 600;
  opacity: 0;
  transition: opacity 0.3s;
  margin-right: 10px;
}

.auto-save-indicator.show {
  opacity: 1;
}

.auto-save-indicator.saving {
  color: var(--warning);
}

/* ================= 3. 右侧：运行控制台与海龟画图视窗 ================= */
.output-panel {
  display: flex;
  flex-direction: column;
}

/* 输出视窗模式切换标签栏 (终端 vs 海龟画布) */
.output-tabs {
  display: flex;
  align-items: center;
  gap: 4px;
  background: #F1F5F9;
  padding: 3px;
  border-radius: var(--radius-pill);
}

body.dark-mode .output-tabs {
  background: #24293C;
}

.output-tab-btn {
  border: none;
  background: transparent;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}

.output-tab-btn.active {
  background: var(--panel-bg);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

/* 控制台视窗 */
.console-view {
  flex: 1;
  background: var(--term-bg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

.terminal-logs {
  flex: 1;
  padding: 10px;
  overflow-y: auto;
  font-family: var(--font-code);
  font-size: 13px;
  line-height: 1.5;
  color: var(--term-text);
  white-space: pre-wrap;
  word-break: break-all;
}

.term-line {
  margin-bottom: 4px;
}

.term-line.stdout {
  color: var(--term-text);
}

.term-line.system {
  color: #7AA2F7;
  font-style: italic;
}

.term-line.success {
  color: #A6E3A1;
  font-weight: bold;
}

.term-line.warning {
  color: #F9E2AF;
}

.term-line.error {
  color: var(--term-err);
  background: rgba(243, 139, 168, 0.1);
  padding: 6px 10px;
  border-radius: 6px;
  border-left: 3px solid var(--term-err);
  margin: 6px 0;
}

/* 儿童友好：小侦探错误诊断卡片 */
.detective-tip-card {
  background: linear-gradient(135deg, #FEF9E7 0%, #FDEBD8 100%);
  border: 2px solid #E67E22;
  border-radius: var(--radius-md);
  padding: 12px 14px;
  margin: 10px 0;
  color: #6B3A00;
  font-family: var(--font-ui);
  box-shadow: 0 4px 12px rgba(230, 126, 34, 0.2);
  animation: slideInUp 0.3s ease;
}

@keyframes slideInUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.detective-header {
  font-weight: 800;
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 6px;
}

.detective-body {
  font-size: 12.5px;
  line-height: 1.5;
}

/* ================= 魔法海龟画图视窗 (Turtle Graphics) ================= */
.turtle-view {
  flex: 1;
  display: none;
  flex-direction: column;
  background: #FFFFFF;
  position: relative;
  overflow: hidden;
}

body.dark-mode .turtle-view {
  background: #111422;
}

.turtle-canvas-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #FAFAFD;
  position: relative;
  overflow: hidden;
}

.turtle-stage {
  position: relative;
  width: 500px;
  height: 500px;
  flex-shrink: 0;
}

body.dark-mode .turtle-canvas-container {
  background: #151828;
}

#turtleCanvas {
  background: #FFFFFF;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  border-radius: 8px;
  display: block;
}

/* 海龟小指针（带方向的小乌龟） */
.turtle-sprite {
  position: absolute;
  width: 28px;
  height: 28px;
  pointer-events: none;
  z-index: 10;
  transition: transform 0.05s linear;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.25));
}

.turtle-toolbar {
  height: 36px;
  background: var(--panel-bg);
  border-top: 1px solid var(--border-soft);
  padding: 0 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-muted);
}

/* 速度滑块 */
.turtle-speed-control {
  display: flex;
  align-items: center;
  gap: 8px;
}

.turtle-speed-control input[type="range"] {
  width: 90px;
  accent-color: var(--primary);
}

/* ================= 弹窗与小提示 (Modal / Toast) ================= */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  animation: fadeIn 0.2s ease;
}

.modal-overlay.active {
  display: flex;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-card {
  background: var(--panel-bg);
  width: 90%;
  max-width: 440px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-popup);
  padding: 24px;
  border: 1px solid var(--border-color);
  animation: modalPop 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes modalPop {
  from { transform: scale(0.9) translateY(10px); opacity: 0; }
  to { transform: scale(1) translateY(0); opacity: 1; }
}

.modal-title {
  font-size: 17px;
  font-weight: 800;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.modal-desc {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 18px;
}

.modal-input {
  width: 100%;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  border: 2px solid var(--border-color);
  font-size: 14px;
  outline: none;
  margin-bottom: 18px;
  font-family: var(--font-code);
}

.modal-input:focus {
  border-color: var(--primary);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* 炫彩通知小泡泡 (Toast) */
.toast-box {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(30, 41, 59, 0.95);
  color: #FFFFFF;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.2);
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.toast-box.show {
  opacity: 1;
  transform: translateX(-50%) translateY(-10px);
}

/* 响应式调整 */
@media (max-width: 1180px) {
  /* 顶栏空间紧张时隐藏引擎状态药丸 */
  .engine-status-pill {
    display: none;
  }
}

@media (max-width: 1024px) {
  .app-workspace {
    grid-template-columns: 170px 1fr 280px;
  }
}

@media (max-width: 860px) {
  /* 进一步压缩顶栏：双 span 按钮只留图标 */
  .header-btn span:last-child:not(:only-child) {
    display: none;
  }
  .header-btn {
    padding: 0 8px;
  }
  .brand-badge {
    display: none;
  }
  .btn-run-magic {
    padding: 6px 12px;
  }
  .btn-run-magic .run-icon {
    font-size: 14px;
  }
}

@media (max-width: 768px) {
  .app-workspace {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr auto;
    overflow-y: auto;
  }
  .app-header {
    padding: 0 10px;
  }
  .brand-title {
    font-size: 14px;
  }
  .brand-logo-wrap {
    width: 30px;
    height: 30px;
    font-size: 16px;
  }
}