/* ============================================
   CSS变量 / 主题定义
   ============================================ */

:root {
  /* 主色调 */
  --primary: #6c5ce7;
  --primary-light: #a29bfe;
  --primary-dark: #5541d8;
  --primary-bg: rgba(108, 92, 231, 0.08);

  /* 辅助色 */
  --accent: #00cec9;
  --accent-light: #81ecec;
  --accent-dark: #00b5b0;

  /* 成功/警告/危险 */
  --success: #00b894;
  --success-bg: rgba(0, 184, 148, 0.1);
  --warning: #fdcb6e;
  --warning-dark: #e5a825;
  --warning-bg: rgba(253, 203, 110, 0.15);
  --danger: #d63031;
  --danger-light: #ff7675;
  --danger-bg: rgba(214, 48, 49, 0.1);

  /* 中性色 */
  --text-primary: #2d3436;
  --text-secondary: #636e72;
  --text-muted: #b2bec3;
  --text-inverse: #ffffff;

  /* 背景色 */
  --bg-body: #f0f2f5;
  --bg-surface: #ffffff;
  --bg-surface-hover: #f8f9fa;
  --bg-sidebar: #1e1e2e;
  --bg-sidebar-hover: #2a2a3e;
  --bg-sidebar-active: #33334d;
  --bg-header: #ffffff;
  --bg-editor: #faf9f6;
  --bg-chat: #f5f5f5;
  --bg-modal: #ffffff;
  --bg-code: #f1f3f5;
  --bg-input: #ffffff;

  /* 边框 */
  --border-color: #e0e0e0;
  --border-light: #f0f0f0;
  --border-dark: #cccccc;
  --border-focus: var(--primary);
  --border-radius: 8px;
  --border-radius-sm: 4px;
  --border-radius-lg: 12px;
  --border-radius-xl: 16px;

  /* 阴影 */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
  --shadow-xl: 0 12px 40px rgba(0,0,0,0.15);
  --shadow-inner: inset 0 2px 4px rgba(0,0,0,0.06);

  /* 布局尺寸 */
  --header-height: 52px;
  --sidebar-width: 280px;
  --sidebar-min-width: 60px;
  --sidebar-right-width: 320px;
  --chat-input-height: 120px;

  /* 字体 */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "微软雅黑", sans-serif;
  --font-mono: "Cascadia Code", "Fira Code", "Consolas", monospace;
  --font-editor: "微软雅黑", "Georgia", serif;

  /* 编辑器 */
  --editor-font-size: 16px;
  --editor-line-height: 1.8;
  --editor-font-color: #333333;
  --editor-font-family: "微软雅黑";
  --editor-bg: #faf9f6;

  /* 动画 */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-slow: 0.4s ease;

  /* Z-index层级 */
  --z-sidebar: 100;
  --z-header: 200;
  --z-modal: 1000;
  --z-notification: 2000;
  --z-loading: 3000;
}

/* 全局样式重置 */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 14px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-body);
  color: var(--text-primary);
  line-height: 1.5;
  overflow: hidden;
  height: 100vh;
  width: 100vw;
}

/* 滚动条样式 */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(0,0,0,0.15);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(0,0,0,0.25);
}

/* 选中文本颜色 */
::selection {
  background: var(--primary-light);
  color: white;
}

/* 通用按钮样式 */
button {
  cursor: pointer;
  border: none;
  outline: none;
  font-family: inherit;
  font-size: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  outline: none;
}

a {
  color: var(--primary);
  text-decoration: none;
}

/* 通用表单样式 */
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  background: var(--bg-input);
  color: var(--text-primary);
  transition: border-color var(--transition-fast);
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-bg);
}
.form-textarea {
  resize: vertical;
  min-height: 60px;
}
.form-input-small {
  width: 100px;
  padding: 6px 10px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  background: var(--bg-input);
}
.form-range {
  width: 100%;
  cursor: pointer;
}
.form-color {
  width: 50px;
  height: 34px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  padding: 2px;
}
.form-hint {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}
.form-group {
  margin-bottom: 16px;
}
.form-group label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
  font-weight: 500;
  font-size: 13px;
  color: var(--text-secondary);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border-light);
}

/* 通用按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 20px;
  border-radius: var(--border-radius-sm);
  font-size: 13px;
  font-weight: 500;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: white;
}
.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: var(--shadow-sm);
}
.btn-secondary {
  background: var(--bg-surface);
  color: var(--text-secondary);
  border-color: var(--border-color);
}
.btn-secondary:hover {
  background: var(--bg-surface-hover);
  border-color: var(--border-dark);
}
.btn-danger {
  background: var(--danger);
  color: white;
}
.btn-danger:hover {
  background: #c0392b;
}
.btn-small {
  padding: 4px 12px;
  font-size: 12px;
}
.btn-block {
  width: 100%;
}
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Toggle开关 */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 40px;
  height: 22px;
  cursor: pointer;
}
.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}
.toggle-slider {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: #ccc;
  border-radius: 22px;
  transition: var(--transition-fast);
}
.toggle-slider::before {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  left: 3px;
  bottom: 3px;
  background: white;
  border-radius: 50%;
  transition: var(--transition-fast);
}
.toggle-switch input:checked + .toggle-slider {
  background: var(--primary);
}
.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(18px);
}

/* 颜色选择器行 */
.color-picker-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* 输入框带按钮 */
.input-with-action {
  display: flex;
  gap: 8px;
}
.input-with-action .form-input {
  flex: 1;
}

/* Action结果文字 */
.action-result {
  font-size: 12px;
  color: var(--success);
}
.action-result.error {
  color: var(--danger);
}

/* 比例设置 */
.ratio-setting {
  display: flex;
  align-items: center;
  gap: 8px;
}
.ratio-text {
  font-size: 13px;
  color: var(--text-secondary);
  white-space: nowrap;
}

/* AI生成按钮 */
.ai-gen-btn {
  margin-top: 6px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white;
  border: none;
}
.ai-gen-btn:hover {
  opacity: 0.9;
}

/* ============================================
   主题：夜间模式
   ============================================ */
[data-theme="dark"] {
  --text-primary: #e0e0e0;
  --text-secondary: #a0a0a0;
  --text-muted: #707070;
  --bg-body: #121212;
  --bg-surface: #1e1e1e;
  --bg-surface-hover: #2a2a2a;
  --bg-header: #1a1a2e;
  --bg-editor: #1c1c1c;
  --bg-chat: #1a1a1a;
  --bg-modal: #242424;
  --bg-input: #2c2c2c;
  --border-color: #3a3a3a;
  --border-light: #2e2e2e;
  --border-dark: #4a4a4a;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.5);
  --editor-font-color: #d4d4d4;
  --editor-bg: #1c1c1c;
}
[data-theme="dark"] .sidebar-left {
  background: #0f0f1a;
}
[data-theme="dark"] .novel-select {
  background: #2a2a2a;
  border-color: #3a3a3a;
  color: #ccc;
}
[data-theme="dark"] .novel-select option {
  background: #2a2a2a;
}
[data-theme="dark"] .chat-mode-select {
  background: #2a2a2a;
  color: #ccc;
  border-color: #3a3a3a;
}
[data-theme="dark"] .loading-overlay {
  background: rgba(0,0,0,0.85);
}
[data-theme="dark"] .notification {
  background: #2a2a2a;
}

/* ============================================
   主题：护眼模式
   ============================================ */
[data-theme="green"] {
  --text-primary: #2d3e2d;
  --text-secondary: #506850;
  --text-muted: #8aaa8a;
  --bg-body: #e8f0e0;
  --bg-surface: #f0f5ea;
  --bg-surface-hover: #e5ede0;
  --bg-header: #f0f5ea;
  --bg-editor: #f5f9f0;
  --bg-chat: #ecf2e6;
  --bg-modal: #f2f7ec;
  --bg-input: #f5f9f0;
  --border-color: #c5d5b8;
  --border-light: #d5e5c8;
  --border-dark: #a5c098;
  --editor-font-color: #2d3e2d;
  --editor-bg: #f5f9f0;
  --primary: #4a8c5c;
  --primary-light: #7ab88a;
  --primary-dark: #3a7c4c;
  --primary-bg: rgba(74,140,92,0.1);
}
[data-theme="green"] .sidebar-left {
  background: #2a3a2a;
}
[data-theme="green"] .sidebar-tab.active {
  background: #4a8c5c;
}
[data-theme="green"] .send-btn {
  background: linear-gradient(135deg, #4a8c5c, #3a9c7c);
}

/* ============================================
   认证页面样式
   ============================================ */
.auth-logo-area {
  text-align: center;
  padding: 10px 0 20px;
}
.auth-logo-icon {
  font-size: 36px;
  color: var(--primary);
  margin-bottom: 8px;
}
.auth-logo-area h2 {
  font-size: 20px;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.auth-logo-area p {
  font-size: 13px;
  color: var(--text-muted);
}
.auth-switch {
  text-align: center;
  margin-top: 16px;
  font-size: 13px;
  color: var(--text-secondary);
}
.auth-switch a {
  color: var(--primary);
  font-weight: 600;
  cursor: pointer;
}
.auth-switch a:hover {
  text-decoration: underline;
}
.agreement-group {
  margin-bottom: 8px;
}
.agreement-label {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 13px;
  cursor: pointer;
}
.agreement-label input[type="checkbox"] {
  margin-top: 3px;
  cursor: pointer;
}
.agreement-label a {
  color: var(--primary);
}
.agreement-content {
  max-height: 400px;
  overflow-y: auto;
  padding: 16px;
  background: var(--bg-surface-hover);
  border-radius: var(--border-radius);
  font-size: 13px;
  line-height: 1.8;
  white-space: pre-wrap;
  color: var(--text-secondary);
}

/* 用户浮动栏 */
.user-bar-float {
  position: fixed;
  bottom: 16px;
  left: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  box-shadow: var(--shadow-md);
  z-index: 50;
  font-size: 12px;
}
.user-bar-name {
  color: var(--text-primary);
  font-weight: 600;
}
.user-bar-logout {
  padding: 2px 10px;
  border-radius: 10px;
  background: var(--bg-surface-hover);
  color: var(--text-muted);
  font-size: 11px;
  border: 1px solid var(--border-color);
}
.user-bar-logout:hover {
  color: var(--danger);
  border-color: var(--danger-light);
}

/* 主题切换按钮高亮 */
#btn-theme-toggle .icon {
  font-size: 16px;
}

/* 模型管理样式 */
.model-list-editor {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 12px;
}
.model-card {
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 14px;
  transition: border-color var(--transition-fast);
}
.model-card:hover {
  border-color: var(--primary-light);
}
.model-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.model-card-header input[type="text"] {
  flex: 1;
  border: 1px solid var(--border-light);
  padding: 4px 8px;
  border-radius: var(--border-radius-sm);
  font-size: 13px;
  font-weight: 600;
}
.model-card-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.model-card-body .model-field {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.model-field label {
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 0;
}
.model-field input {
  border: 1px solid var(--border-light);
  padding: 4px 8px;
  border-radius: var(--border-radius-sm);
  font-size: 12px;
}
.model-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--border-light);
}
.model-delete-btn {
  padding: 2px 10px;
  border-radius: var(--border-radius-sm);
  background: transparent;
  color: var(--danger);
  font-size: 12px;
  border: 1px solid var(--danger-light);
}
.model-delete-btn:hover {
  background: var(--danger-bg);
}

/* 模型选择器（用户对话框中） */
.model-selector-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.model-select {
  padding: 4px 10px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  background: var(--bg-surface-hover);
  color: var(--text-primary);
  font-size: 12px;
  cursor: pointer;
}
.model-price-hint {
  font-size: 11px;
  color: var(--text-muted);
}