/* TextCounter Pro - 专业级文本统计工具样式 */

/* CSS变量定义 */
:root {
  /* 颜色系统 */
  --primary-50: #f0f9ff;
  --primary-100: #e0f2fe;
  --primary-200: #bae6fd;
  --primary-300: #7dd3fc;
  --primary-400: #38bdf8;
  --primary-500: #0ea5e9;
  --primary-600: #0284c7;
  --primary-700: #0369a1;
  --primary-800: #075985;
  --primary-900: #0c4a6e;

  --secondary-50: #fdf4ff;
  --secondary-100: #fae8ff;
  --secondary-200: #f3d4ff;
  --secondary-300: #e9b3ff;
  --secondary-400: #d946ef;
  --secondary-500: #c026d3;
  --secondary-600: #a21caf;
  --secondary-700: #86198f;
  --secondary-800: #701a75;
  --secondary-900: #581c87;

  /* 中性色 */
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;

  /* 语义色彩 */
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
  --info: var(--primary-500);

  /* 间距系统 */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;

  /* 圆角系统 */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;

  /* 阴影系统 */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

  /* 字体系统 */
  --font-mono: 'Fira Code', 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;

  /* 动画时长 */
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 350ms;

  /* 主题相关 */
  --bg-base: #ffffff;
  --bg-subtle: var(--gray-50);
  --bg-muted: var(--gray-100);
  --text-primary: var(--gray-900);
  --text-secondary: var(--gray-600);
  --text-muted: var(--gray-500);
  --border-color: var(--gray-200);
  --border-hover: var(--gray-300);
}

/* 暗色主题 */
[data-theme="dark"] {
  --bg-base: #0f1419;
  --bg-subtle: #1a1f29;
  --bg-muted: #242b38;
  --text-primary: #ffffff;
  --text-secondary: #c9d1d9;
  --text-muted: #8b949e;
  --border-color: #30363d;
  --border-hover: #484f58;
}

/* 全局重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-base);
  font-size: 16px;
  overflow-x: hidden;
  transition: background-color var(--duration-normal), color var(--duration-normal);
}

/* 加载屏幕 */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary-600), var(--secondary-600));
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 1;
  transition: opacity 0.5s ease;
}

.loading-screen.hidden {
  opacity: 0;
  pointer-events: none;
}

.loading-content {
  text-align: center;
  color: white;
}

.loading-logo {
  margin-bottom: var(--space-4);
  animation: loadingBounce 1.5s ease-in-out infinite;
  filter: drop-shadow(0 0 20px rgba(255, 255, 255, 0.5));
}

.loading-logo svg {
  stroke: white;
  width: 64px;
  height: 64px;
}

.loading-text {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--space-6);
  letter-spacing: 0.05em;
  animation: loadingTextGlow 2s ease-in-out infinite;
}

@keyframes loadingTextGlow {
  0%, 100% {
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
  }
  50% {
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.8), 0 0 30px rgba(255, 255, 255, 0.6);
  }
}

.loading-bar {
  width: 240px;
  height: 6px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-sm);
  overflow: hidden;
  position: relative;
}

.loading-bar::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  animation: loadingShine 1.5s ease-in-out infinite;
}

.loading-progress {
  height: 100%;
  background: linear-gradient(90deg, #ffffff, #f0f8ff, #ffffff);
  border-radius: var(--radius-sm);
  animation: loadingProgress 2.5s ease-in-out infinite;
  position: relative;
}

@keyframes loadingBounce {
  0%, 100% { 
    transform: translateY(0) scale(1); 
  }
  50% { 
    transform: translateY(-15px) scale(1.1); 
  }
}

@keyframes loadingRotate {
  0% { 
    transform: rotate(0deg); 
  }
  100% { 
    transform: rotate(360deg); 
  }
}

@keyframes loadingProgress {
  0% { 
    width: 0%; 
    opacity: 0.5;
  }
  25% { 
    width: 30%; 
    opacity: 1;
  }
  50% { 
    width: 70%; 
    opacity: 0.8;
  }
  75% { 
    width: 90%; 
    opacity: 1;
  }
  100% { 
    width: 100%; 
    opacity: 0.9;
  }
}

@keyframes loadingShine {
  0% {
    left: -100%;
  }
  100% {
    left: 100%;
  }
}

/* 主题切换按钮 */
.theme-toggle {
  position: fixed;
  top: var(--space-6);
  right: var(--space-6);
  width: 48px;
  height: 48px;
  border: none;
  border-radius: 50%;
  background: var(--bg-muted);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  z-index: 1000;
  transition: all var(--duration-normal);
  display: flex;
  align-items: center;
  justify-content: center;
}

.theme-toggle:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-xl);
}

.theme-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--duration-normal);
}

.theme-icon svg {
  stroke: var(--text-primary);
  transition: stroke 0.3s ease;
}

[data-theme="dark"] .theme-icon .icon-moon {
  display: none;
}

[data-theme="dark"] .theme-icon .icon-sun {
  display: block !important;
}

[data-theme="light"] .theme-icon .icon-moon {
  display: block;
}

[data-theme="light"] .theme-icon .icon-sun {
  display: none;
}

.theme-toggle:hover .theme-icon {
  transform: rotate(20deg);
}

/* 主容器 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* 导航栏 */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-6) var(--space-8);
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.brand-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  animation: logoFloat 3s ease-in-out infinite;
  transition: all 0.3s ease;
  cursor: pointer;
}

.brand-logo svg {
  stroke: var(--primary-600);
  transition: all 0.3s ease;
}

@keyframes logoFloat {
  0%, 100% { 
    transform: translateY(0px) rotate(0deg); 
  }
  50% { 
    transform: translateY(-5px) rotate(5deg); 
  }
}

@keyframes logoRotate {
  0% { 
    filter: hue-rotate(0deg); 
  }
  100% { 
    filter: hue-rotate(360deg); 
  }
}

.brand-logo:hover {
  transform: scale(1.2) rotate(15deg);
  animation-play-state: paused;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-name {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  transition: all 0.3s ease;
}

.brand-suffix {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--primary-600);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: all 0.3s ease;
  animation: suffixGlow 2s ease-in-out infinite;
}

@keyframes suffixGlow {
  0%, 100% {
    text-shadow: 0 0 5px rgba(var(--primary-500), 0.3);
  }
  50% {
    text-shadow: 0 0 10px rgba(var(--primary-500), 0.6);
  }
}

.nav-brand:hover .brand-name {
  color: var(--primary-600);
}

.nav-brand:hover .brand-suffix {
  letter-spacing: 0.15em;
  color: var(--secondary-600);
}

.nav-actions {
  display: flex;
  gap: var(--space-2);
}

.nav-btn {
  width: 40px;
  height: 40px;
  border: none;
  border-radius: var(--radius-lg);
  background: transparent;
  cursor: pointer;
  transition: all var(--duration-normal);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.nav-btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: radial-gradient(circle, var(--primary-200), transparent);
  transition: all var(--duration-normal);
  transform: translate(-50%, -50%);
  border-radius: 50%;
}

.nav-btn:hover {
  background: var(--bg-muted);
  transform: translateY(-2px) scale(1.1);
}

.nav-btn:hover::before {
  width: 100%;
  height: 100%;
}

.nav-btn:active {
  transform: translateY(0) scale(0.95);
}

.nav-icon {
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-icon svg {
  stroke: var(--text-secondary);
  transition: stroke 0.3s ease;
}

.nav-btn:hover .nav-icon svg {
  stroke: var(--primary-600);
}

/* 英雄区域 */
.hero-section {
  padding: var(--space-10) var(--space-6);
  text-align: center;
  background: linear-gradient(135deg, var(--primary-50), var(--secondary-50));
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23e5e7eb" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.5;
}

.hero-section::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 50% 50%, rgba(102, 126, 234, 0.1) 0%, transparent 70%);
  animation: gradientPulse 4s ease-in-out infinite;
}

@keyframes gradientPulse {
  0%, 100% {
    opacity: 0.3;
    transform: scale(1);
  }
  50% {
    opacity: 0.6;
    transform: scale(1.05);
  }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-6);
  background: linear-gradient(135deg, var(--primary-600), var(--secondary-600), var(--primary-500));
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: titleGradientShift 3s ease-in-out infinite, titleSlideIn 1s ease-out;
  position: relative;
  overflow: hidden;
}

.hero-title::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  animation: titleShine 3s ease-in-out infinite 1s;
}

@keyframes titleGradientShift {
  0%, 100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

@keyframes titleShine {
  0% {
    left: -100%;
  }
  100% {
    left: 100%;
  }
}

@keyframes titleSlideIn {
  0% {
    opacity: 0;
    transform: translateY(-30px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-title:hover {
  animation-play-state: paused;
  transform: scale(1.02);
  transition: transform 0.3s ease;
}

.hero-highlight {
  display: block;
  font-weight: 800;
  background: linear-gradient(135deg, var(--secondary-500), var(--primary-500), var(--secondary-600));
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: highlightTypewriter 2s ease-out 0.5s both, highlightGlow 2s ease-in-out infinite 2.5s;
  position: relative;
  white-space: nowrap;
  border-right: 3px solid transparent;
}

.hero-highlight::after {
  content: '|';
  color: var(--primary-500);
  animation: blink 1s infinite 2.5s;
  opacity: 0;
}

@keyframes highlightTypewriter {
  0% {
    width: 0;
    opacity: 0;
  }
  1% {
    opacity: 1;
  }
  100% {
    width: 100%;
    opacity: 1;
  }
}

@keyframes highlightGlow {
  0%, 100% {
    text-shadow: 0 0 10px rgba(var(--primary-500), 0.3);
  }
  50% {
    text-shadow: 0 0 20px rgba(var(--primary-500), 0.6), 0 0 30px rgba(var(--secondary-500), 0.4);
  }
}

@keyframes blink {
  0%, 50% {
    opacity: 1;
  }
  51%, 100% {
    opacity: 0;
  }
}

.hero-description {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-8);
  line-height: 1.6;
  animation: descriptionFadeIn 1.5s ease-out 1s both;
  opacity: 0;
}

@keyframes descriptionFadeIn {
  0% {
    opacity: 0;
    transform: translateY(20px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-features {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: center;
  margin-bottom: var(--space-8);
}

.feature-tag {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: white;
  border-radius: var(--radius-xl);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  box-shadow: var(--shadow-sm);
  transition: all var(--duration-normal);
  animation: featureSlideUp 0.8s ease-out both;
  opacity: 0;
  transform: translateY(20px);
}

.feature-tag svg {
  stroke: var(--primary-500);
  flex-shrink: 0;
}

.feature-tag:nth-child(1) { animation-delay: 1.8s; }
.feature-tag:nth-child(2) { animation-delay: 2.0s; }
.feature-tag:nth-child(3) { animation-delay: 2.2s; }
.feature-tag:nth-child(4) { animation-delay: 2.4s; }

@keyframes featureSlideUp {
  0% {
    opacity: 0;
    transform: translateY(20px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

.feature-tag:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: var(--shadow-lg);
  background: linear-gradient(135deg, var(--primary-50), white);
  color: var(--primary-600);
}

/* 工作区域 */
.workspace {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  padding: var(--space-6);
  flex: 1;
}

.workspace > * {
  animation: workspaceSlideIn 0.8s ease-out both;
  opacity: 0;
  transform: translateY(30px);
}

.workspace > *:nth-child(1) { animation-delay: 0.2s; }
.workspace > *:nth-child(2) { animation-delay: 0.4s; }

@keyframes workspaceSlideIn {
  0% {
    opacity: 0;
    transform: translateY(30px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 面板样式 */
.input-panel,
.stats-panel {
  background: white;
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transition: all var(--duration-normal);
  position: relative;
}

.input-panel::before,
.stats-panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-500), var(--secondary-500));
  transform: scaleX(0);
  transition: transform var(--duration-normal);
}

.input-panel:hover,
.stats-panel:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-2px);
}

.input-panel:hover::before,
.stats-panel:hover::before {
  transform: scaleX(1);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4);
  background: var(--bg-subtle);
  border-bottom: 1px solid var(--border-color);
}

.panel-title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.panel-icon {
  display: flex;
  align-items: center;
  justify-content: center;
}

.panel-icon svg {
  stroke: var(--primary-600);
}

.panel-actions {
  display: flex;
  gap: var(--space-2);
}

.tool-btn {
  width: 36px;
  height: 36px;
  border: none;
  border-radius: var(--radius-md);
  background: transparent;
  cursor: pointer;
  transition: all var(--duration-normal);
  display: flex;
  align-items: center;
  justify-content: center;
}

.tool-btn svg {
  stroke: var(--text-secondary);
  transition: stroke 0.3s ease;
}

.tool-btn:hover svg {
  stroke: var(--primary-600);
}

.tool-btn.danger:hover svg {
  stroke: white;
}

.tool-btn:hover {
  background: var(--bg-muted);
  transform: scale(1.1);
}

.tool-btn.danger:hover {
  background: var(--error);
  color: white;
}

/* 输入区域 */
.input-container {
  padding: var(--space-4);
  position: relative;
}

.input-container .input-tools {
  position: absolute;
  bottom: var(--space-6);
  right: var(--space-6);
  display: flex;
  gap: var(--space-2);
}

.text-editor {
  width: 100%;
  height: 420px;
  padding: var(--space-4);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-xl);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  line-height: 1.6;
  resize: vertical;
  transition: all var(--duration-normal);
  background: var(--bg-base);
  color: var(--text-primary);
}

.text-editor:focus {
  outline: none;
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(var(--primary-500), 0.1);
}

.text-editor::placeholder {
  color: var(--text-muted);
  line-height: 1.5;
}

/* 底部工具栏 */
.bottom-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-6);
  background: var(--bg-subtle);
  border-top: 1px solid var(--border-color);
  margin: 0 var(--space-6) var(--space-4);
  border-radius: var(--radius-lg);
}

.quick-stats {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.separator {
  color: var(--text-muted);
}

.input-tools {
  display: flex;
  gap: var(--space-2);
}

.mini-btn {
  padding: var(--space-1) var(--space-2);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-base);
  font-size: 0.75rem;
  cursor: pointer;
  transition: all var(--duration-fast);
}

.mini-btn:hover {
  border-color: var(--primary-500);
  color: var(--primary-600);
}

/* 统计网格 */
.stats-grid {
  display: grid;
  gap: var(--space-3);
  padding: var(--space-4);
}

.stats-grid.primary {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.stats-grid.secondary {
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}

/* 统计卡片 */
.stat-card {
  background: var(--bg-base);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-4);
  transition: all var(--duration-normal);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-500), var(--secondary-500));
  transform: scaleX(0);
  transition: transform var(--duration-normal);
}

.stat-card:hover::before {
  transform: scaleX(1);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-200);
}

.stat-card.featured {
  background: linear-gradient(135deg, var(--primary-50), var(--secondary-50));
  border-color: var(--primary-200);
}

.stat-card.featured .stat-number {
  background: linear-gradient(135deg, var(--primary-600), var(--secondary-600));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-icon {
  margin-bottom: var(--space-2);
  display: flex;
  align-items: center;
  justify-content: center;
}

.stat-icon svg {
  stroke: var(--primary-500);
}

.stat-card.featured .stat-icon svg {
  stroke: var(--primary-600);
}

.stat-content {
  flex: 1;
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  margin-bottom: var(--space-1);
  transition: all var(--duration-normal);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.stat-trend {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
}

.trend-indicator {
  font-size: 0.75rem;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  background: var(--bg-muted);
  color: var(--text-muted);
}

/* 进度指示器 */
.progress-section {
  padding: var(--space-6);
  border-top: 1px solid var(--border-color);
}

.progress-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.progress-item label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  min-width: 80px;
}

.progress-bar {
  flex: 1;
  height: 8px;
  background: var(--bg-muted);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-500), var(--secondary-500));
  border-radius: var(--radius-sm);
  transition: width var(--duration-slow);
}

.progress-text {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  min-width: 60px;
  text-align: right;
}

/* 快速操作栏 */
.quick-actions {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-6);
  justify-content: center;
  flex-wrap: wrap;
}

.action-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-6);
  border: none;
  border-radius: var(--radius-xl);
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--duration-normal);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.action-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left var(--duration-slow);
}

.action-btn:hover::before {
  left: 100%;
}

.action-btn.primary {
  background: linear-gradient(135deg, var(--primary-600), var(--secondary-600));
  color: white;
  box-shadow: var(--shadow-lg);
}

.action-btn.primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.action-btn.secondary {
  background: var(--bg-muted);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.action-btn.secondary:hover {
  background: var(--bg-subtle);
  border-color: var(--border-hover);
  transform: translateY(-1px);
}

.action-btn.outline {
  background: transparent;
  color: var(--text-secondary);
  border: 2px solid var(--border-color);
}

.action-btn.outline:hover {
  border-color: var(--primary-500);
  color: var(--primary-600);
}

.btn-icon {
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-icon svg {
  stroke: currentColor;
}

/* 页脚 */
.footer {
  background: var(--bg-subtle);
  border-top: 1px solid var(--border-color);
  padding: var(--space-8);
  margin-top: auto;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.footer-left {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.footer-separator {
  color: var(--text-muted);
}

.footer-right {
  display: flex;
  gap: var(--space-6);
}

.footer-link {
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--duration-fast);
}

.footer-link:hover {
  color: var(--primary-600);
}

/* 通知系统 */
.notification-container {
  position: fixed;
  top: var(--space-6);
  right: var(--space-6);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.notification {
  background: white;
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  border-left: 4px solid var(--success);
  transform: translateX(100%);
  transition: transform var(--duration-normal);
  max-width: 400px;
}

.notification.show {
  transform: translateX(0);
}

.notification.error {
  border-left-color: var(--error);
}

.notification.warning {
  border-left-color: var(--warning);
}

/* 响应式设计 */
@media (max-width: 1024px) {
  .workspace {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  
  .quick-actions {
    padding: var(--space-6);
  }
}

@media (max-width: 768px) {
  .navbar {
    padding: var(--space-4) var(--space-6);
  }
  
  .hero-section {
    padding: var(--space-12) var(--space-6);
  }
  
  .workspace {
    padding: var(--space-6);
  }
  
  .stats-grid.primary,
  .stats-grid.secondary {
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  }
  
  .footer-content {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }
  
  .quick-actions {
    flex-direction: column;
    align-items: stretch;
  }
  
  .action-btn {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .theme-toggle {
    top: var(--space-4);
    right: var(--space-4);
    width: 40px;
    height: 40px;
  }
  
  .navbar {
    padding: var(--space-3) var(--space-4);
  }
  
  .brand-name {
    font-size: 1.25rem;
  }
  
  .hero-section {
    padding: var(--space-8) var(--space-4);
  }
  
  .workspace {
    padding: var(--space-4);
  }
  
  .text-editor {
    height: 300px;
  }
  
  .stats-grid.primary,
  .stats-grid.secondary {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .stat-number {
    font-size: 2rem;
  }
}

/* 滚动条样式 */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-muted);
}

::-webkit-scrollbar-thumb {
  background: var(--gray-400);
  border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gray-500);
}

/* 选择文本样式 */
::selection {
  background: var(--primary-200);
  color: var(--primary-800);
}

/* 焦点可见性 */
.focus-visible:focus {
  outline: 2px solid var(--primary-500);
  outline-offset: 2px;
}

/* 打印样式 */
@media print {
  .theme-toggle,
  .navbar,
  .hero-section,
  .quick-actions,
  .footer {
    display: none;
  }
  
  .workspace {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  
  .input-panel,
  .stats-panel {
    box-shadow: none;
    border: 1px solid var(--border-color);
  }
}