/* 移动端体验优化样式 */

/* 1. 移动端界面布局优化 */
@media (max-width: 768px) {
  /* 底部固定控制面板 */
  .mobile-control-panel {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    padding: 15px;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
    z-index: 1000;
    border-top: 1px solid #eee;
    max-height: 50vh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  
  /* 为底部控制面板留出空间 */
  .preview-container {
    margin-bottom: 200px;
    padding-bottom: 20px;
  }
  
  /* 生成器容器调整 */
  .generator-container {
    flex-direction: column;
    gap: 20px;
  }
  
  /* 控制面板在移动端隐藏，使用底部面板 */
  .controls {
    display: none;
  }
  
  /* 显示移动端控制面板 */
  .mobile-control-panel {
    display: block;
  }
}

/* 2. 触摸交互优化 */
@media (max-width: 768px) {
  /* 增大所有可点击元素的最小尺寸 */
  .theme-btn, .download-button, .color-picker, input[type="range"] {
    min-height: 44px;
    min-width: 44px;
  }
  
  /* 优化按钮间距 */
  .theme-options {
    gap: 15px;
    justify-content: center;
  }
  
  .theme-btn {
    padding: 12px 20px;
    font-size: 16px;
    border-radius: 8px;
    touch-action: manipulation;
  }
  
  /* 优化滑块控件 */
  input[type="range"] {
    height: 44px;
    -webkit-appearance: none;
    appearance: none;
    background: transparent;
    cursor: pointer;
  }
  
  input[type="range"]::-webkit-slider-track {
    background: #ddd;
    height: 6px;
    border-radius: 3px;
  }
  
  input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    height: 24px;
    width: 24px;
    border-radius: 50%;
    background: #8ACF01;
    cursor: pointer;
    border: 2px solid white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
  }
  
  input[type="range"]::-moz-range-thumb {
    height: 24px;
    width: 24px;
    border-radius: 50%;
    background: #8ACF01;
    cursor: pointer;
    border: 2px solid white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
  }
}

/* 3. 输入体验优化 */
@media (max-width: 768px) {
  /* 文本输入框优化 */
  textarea#text-input {
    font-size: 16px; /* 防止iOS缩放 */
    padding: 15px;
    border-radius: 8px;
    border: 2px solid #ddd;
    min-height: 100px;
    resize: none;
    -webkit-appearance: none;
    appearance: none;
  }
  
  textarea#text-input:focus {
    border-color: #8ACF01;
    outline: none;
    box-shadow: 0 0 0 3px rgba(138, 207, 1, 0.1);
  }
  
  /* 数字输入优化 */
  input[type="number"] {
    font-size: 16px;
    padding: 12px;
    border-radius: 8px;
    border: 2px solid #ddd;
    width: 100%;
    text-align: center;
    -webkit-appearance: none;
    appearance: none;
  }
  
  /* 颜色选择器优化 */
  input[type="color"] {
    width: 60px;
    height: 60px;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
    background: none;
  }
  
  input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
    border-radius: 50%;
    overflow: hidden;
  }
  
  input[type="color"]::-webkit-color-swatch {
    border: none;
    border-radius: 50%;
  }
}

/* 4. 预览区域优化 */
@media (max-width: 768px) {
  .preview-container {
    position: relative;
    touch-action: pan-x pan-y;
  }
  
  #meme-container {
    max-width: 100%;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    overflow: hidden;
  }
  
  #meme-image {
    width: 100%;
    height: auto;
    display: block;
  }
  
  /* 固定下载按钮 */
  .mobile-download-btn {
    position: fixed;
    bottom: 80px;
    right: 20px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: #8ACF01;
    color: white;
    border: none;
    box-shadow: 0 4px 12px rgba(138, 207, 1, 0.3);
    font-size: 24px;
    cursor: pointer;
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    touch-action: manipulation;
  }
  
  .mobile-download-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 16px rgba(138, 207, 1, 0.4);
  }
  
  .mobile-download-btn:active {
    transform: scale(0.95);
  }
  
  /* 隐藏桌面端下载按钮 */
  .download-button {
    display: none;
  }
}

/* 5. 手势支持 */
@media (max-width: 768px) {
  /* 预览图片手势支持 */
  .preview-container {
    overflow: hidden;
    position: relative;
  }
  
  .preview-zoom-container {
    transition: transform 0.3s ease;
    transform-origin: center center;
  }
  
  /* 长按效果 */
  .long-press {
    animation: pulse 0.6s ease-in-out;
  }
  
  @keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
  }
  
  /* 滑动调整参数 */
  .slider-container {
    position: relative;
    touch-action: pan-x;
  }
  
  .slider-value-display {
    position: absolute;
    top: -30px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    pointer-events: none;
  }
}

/* 6. 响应式设计改进 */
@media (max-width: 480px) {
  .container {
    padding: 10px;
  }
  
  .mobile-control-panel {
    padding: 10px;
  }
  
  .control-group {
    flex-direction: column;
    gap: 10px;
    margin-bottom: 15px;
  }
  
  .control-group label {
    font-size: 14px;
    margin-bottom: 5px;
  }
  
  /* 主题按钮在小屏幕上调整 */
  .theme-options {
    flex-direction: column;
    gap: 10px;
  }
  
  .theme-btn {
    width: 100%;
    padding: 15px;
  }
}

/* 支持安全区域 */
@supports (padding: max(0px)) {
  .mobile-control-panel {
    padding-bottom: max(15px, env(safe-area-inset-bottom));
  }
  
  .mobile-download-btn {
    bottom: max(80px, calc(80px + env(safe-area-inset-bottom)));
  }
}

/* 7. 加载体验优化 */
@media (max-width: 768px) {
  /* 骨架屏 */
  .skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
    border-radius: 8px;
  }
  
  @keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
  }
  
  .skeleton-text {
    height: 20px;
    margin: 10px 0;
  }
  
  .skeleton-button {
    height: 44px;
    border-radius: 8px;
  }
  
  .skeleton-preview {
    height: 300px;
    border-radius: 12px;
  }
  
  /* 加载状态 */
  .loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
  }
  
  .loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(138, 207, 1, 0.3);
    border-radius: 50%;
    border-top-color: #8ACF01;
    animation: spin 1s ease-in-out infinite;
  }
  
  @keyframes spin {
    to { transform: rotate(360deg); }
  }
}

/* 8. 性能优化 */
@media (max-width: 768px) {
  /* 减少重绘和重排 */
  .mobile-control-panel * {
    will-change: auto;
  }
  
  .preview-container {
    contain: layout style paint;
  }
  
  /* 优化动画性能 */
  .theme-btn, .mobile-download-btn {
    will-change: transform;
    backface-visibility: hidden;
    transform: translateZ(0);
  }
  
  /* 触摸优化 */
  * {
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
  }
  
  input, textarea {
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    user-select: text;
  }
}

/* 9. 移动端专用控制面板样式 */
.mobile-control-panel {
  display: none;
}

.mobile-control-panel .control-group {
  margin-bottom: 20px;
  padding: 15px;
  background: #f8f9fa;
  border-radius: 8px;
  border: 1px solid #e9ecef;
}

.mobile-control-panel .control-group h4 {
  margin: 0 0 10px 0;
  font-size: 16px;
  color: #333;
  font-weight: bold;
}

.mobile-control-panel .color-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
  margin-top: 10px;
}

.mobile-control-panel .color-option {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 3px solid transparent;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
}

.mobile-control-panel .color-option.selected {
  border-color: #8ACF01;
  transform: scale(1.1);
}

.mobile-control-panel .color-option::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  font-weight: bold;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.mobile-control-panel .color-option.selected::after {
  opacity: 1;
}

.mobile-control-panel .slider-group {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-top: 10px;
}

.mobile-control-panel .slider-group label {
  min-width: 80px;
  font-size: 14px;
  color: #666;
}

.mobile-control-panel .slider-group input[type="range"] {
  flex: 1;
  margin: 0;
}

.mobile-control-panel .slider-group .value-display {
  min-width: 40px;
  text-align: center;
  font-weight: bold;
  color: #8ACF01;
  font-size: 14px;
}

/* 10. 移动端导航优化 */
@media (max-width: 768px) {
  /* 汉堡菜单 */
  .mobile-menu-toggle {
    display: block;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    position: relative;
    z-index: 1001;
  }
  
  .mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: #333;
    margin: 5px 0;
    transition: 0.3s;
  }
  
  .mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
  }
  
  .mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
  }
  
  /* 移动端导航菜单 */
  .mobile-nav {
    position: fixed;
    top: 0;
    left: -100%;
    width: 80%;
    height: 100vh;
    background: white;
    box-shadow: 2px 0 10px rgba(0,0,0,0.1);
    transition: left 0.3s ease;
    z-index: 1000;
    padding-top: 60px;
  }
  
  .mobile-nav.active {
    left: 0;
  }
  
  .mobile-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
  }
  
  .mobile-nav li {
    border-bottom: 1px solid #eee;
  }
  
  .mobile-nav a {
    display: block;
    padding: 20px;
    color: #333;
    text-decoration: none;
    font-size: 18px;
    transition: background-color 0.3s;
  }
  
  .mobile-nav a:hover {
    background-color: #f8f9fa;
  }
  
  /* 导航遮罩 */
  .nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
  }
  
  .nav-overlay.active {
    opacity: 1;
    visibility: visible;
  }
  
  /* 隐藏桌面端导航 */
  nav ul {
    display: none;
  }
}

/* 11. 触觉反馈和动画 */
@media (max-width: 768px) {
  /* 按钮点击反馈 */
  .mobile-control-panel button:active,
  .theme-btn:active,
  .mobile-download-btn:active {
    transform: scale(0.95);
    transition: transform 0.1s ease;
  }
  
  /* 滑动反馈 */
  .slider-container:active {
    transform: scale(1.02);
  }
  
  /* 颜色选择反馈 */
  .color-option:active {
    transform: scale(0.9);
  }
  
  /* 平滑滚动 */
  .mobile-control-panel {
    scroll-behavior: smooth;
  }
  
  /* 页面切换动画 */
  .page-transition {
    transition: opacity 0.3s ease, transform 0.3s ease;
  }
  
  .page-transition.entering {
    opacity: 0;
    transform: translateY(20px);
  }
  
  .page-transition.entered {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 12. 深色模式支持 */
@media (max-width: 768px) and (prefers-color-scheme: dark) {
  .mobile-control-panel {
    background: #1a1a1a;
    border-top-color: #333;
  }
  
  .mobile-control-panel .control-group {
    background: #2a2a2a;
    border-color: #333;
  }
  
  .mobile-control-panel .control-group h4 {
    color: #fff;
  }
  
  .mobile-nav {
    background: #1a1a1a;
  }
  
  .mobile-nav a {
    color: #fff;
  }
  
  .mobile-nav a:hover {
    background-color: #2a2a2a;
  }
  
  .mobile-nav li {
    border-bottom-color: #333;
  }
}

/* 13. 横屏优化 */
@media (max-width: 768px) and (orientation: landscape) {
  .mobile-control-panel {
    max-height: 40vh;
  }
  
  .preview-container {
    margin-bottom: 150px;
  }
  
  .mobile-download-btn {
    bottom: 60px;
  }
}

/* 14. 高分辨率屏幕优化 */
@media (max-width: 768px) and (-webkit-min-device-pixel-ratio: 2) {
  .mobile-control-panel {
    border-top-width: 0.5px;
  }
  
  .control-group {
    border-width: 0.5px;
  }
}

/* 15. 可访问性优化 */
@media (max-width: 768px) {
  /* 焦点状态 */
  .theme-btn:focus,
  .mobile-download-btn:focus,
  .color-option:focus {
    outline: 3px solid #8ACF01;
    outline-offset: 2px;
  }
  
  /* 高对比度模式 */
  @media (prefers-contrast: high) {
    .mobile-control-panel {
      border-top: 2px solid #000;
    }
    
    .control-group {
      border: 2px solid #000;
    }
    
    .theme-btn {
      border: 2px solid #000;
    }
  }
  
  /* 减少动画 */
  @media (prefers-reduced-motion: reduce) {
    * {
      animation-duration: 0.01ms !important;
      animation-iteration-count: 1 !important;
      transition-duration: 0.01ms !important;
    }
  }
}