/* 汛期现场照片分享 - 主样式文件 */

/* CSS变量定义 */
:root {
  --primary-color: #2196F3;
  --primary-dark: #1976D2;
  --primary-light: #BBDEFB;
  --secondary-color: #FF9800;
  --success-color: #4CAF50;
  --warning-color: #FF9800;
  --error-color: #F44336;
  --info-color: #2196F3;
  
  --text-primary: #212121;
  --text-secondary: #757575;
  --text-disabled: #BDBDBD;
  --text-white: #FFFFFF;
  
  --background-primary: #FFFFFF;
  --background-secondary: #FAFAFA;
  --background-card: #FFFFFF;
  --background-overlay: rgba(0, 0, 0, 0.5);
  
  --border-color: #E0E0E0;
  --border-light: #F5F5F5;
  --shadow-small: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-medium: 0 4px 8px rgba(0, 0, 0, 0.15);
  --shadow-large: 0 8px 16px rgba(0, 0, 0, 0.2);
  
  --radius-small: 4px;
  --radius-medium: 8px;
  --radius-large: 12px;
  
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-md: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 20px;
  --font-size-xxl: 24px;
  
  --header-height: 60px;
  --toolbar-height: 60px;
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: var(--font-size-md);
  line-height: 1.5;
  color: var(--text-primary);
  background-color: var(--background-secondary);
  overflow-x: hidden;
}

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

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  outline: none;
  transition: all var(--transition-fast);
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-medium);
  padding: var(--spacing-sm) var(--spacing-md);
  outline: none;
  transition: border-color var(--transition-fast);
}

input:focus, textarea:focus, select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px var(--primary-light);
}

/* 主应用容器 */
#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* 头部样式 */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--background-primary);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  box-shadow: var(--shadow-small);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 var(--spacing-md);
  max-width: 1200px;
  margin: 0 auto;
}

.app-title, .page-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

/* 按钮样式 */
.btn-primary {
  background: var(--primary-color);
  color: var(--text-white);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-medium);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  min-height: 40px;
}

.btn-primary:hover {
  background: var(--primary-dark);
}

.btn-primary:disabled {
  background: var(--text-disabled);
  cursor: not-allowed;
}

.btn-secondary {
  background: var(--background-primary);
  color: var(--primary-color);
  border: 1px solid var(--primary-color);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-medium);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  min-height: 40px;
}

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

.btn-icon {
  background: transparent;
  color: var(--text-secondary);
  padding: var(--spacing-sm);
  border-radius: var(--radius-medium);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.btn-white {
  background: var(--background-primary);
  color: var(--text-primary);
}

.btn-close {
  background: transparent;
  color: var(--text-secondary);
  font-size: var(--font-size-xxl);
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-medium);
}

.btn-close:hover {
  background: var(--background-secondary);
}

.btn-large {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-lg);
  min-height: 48px;
}

.btn-small {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-sm);
  min-height: 32px;
}

.btn-text {
  background: transparent;
  color: var(--primary-color);
  padding: var(--spacing-xs) var(--spacing-sm);
  font-weight: 500;
}

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

.btn-link {
  background: transparent;
  color: var(--primary-color);
  padding: 0;
  font-size: var(--font-size-sm);
  text-decoration: underline;
}

/* 地图容器 */
.map-container {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: var(--toolbar-height);
  width: 100vw;
  height: calc(100vh - var(--header-height) - var(--toolbar-height));
}

.map {
  width: 100%;
  height: 100%;
}

/* 加载状态 */
.loading {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
  z-index: 100;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-light);
  border-top: 3px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.loading-spinner-small {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-light);
  border-top: 2px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.loading-text {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

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

/* 底部工具栏 */
.bottom-toolbar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--toolbar-height);
  background: var(--background-primary);
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xl);
  z-index: 1000;
  box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.1);
}

.toolbar-btn {
  background: transparent;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm);
  border-radius: var(--radius-medium);
  font-size: var(--font-size-xs);
  min-width: 60px;
}

.toolbar-btn:hover {
  background: var(--background-secondary);
  color: var(--primary-color);
}

/* 模态框 */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--background-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  padding: var(--spacing-md);
}

.modal.show {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--background-primary);
  border-radius: var(--radius-large);
  box-shadow: var(--shadow-large);
  max-width: 500px;
  width: 100%;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  transform: scale(0.9);
  transition: transform var(--transition-normal);
}

.modal.show .modal-content {
  transform: scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
  margin: 0;
  font-size: var(--font-size-lg);
  font-weight: 600;
}

/* 照片列表 */
.photo-list {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-md);
}

.photo-item {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  border-radius: var(--radius-medium);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.photo-item:hover {
  background: var(--background-secondary);
}

.photo-thumbnail {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-medium);
  overflow: hidden;
  flex-shrink: 0;
}

.photo-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.photo-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.photo-time {
  font-weight: 500;
  color: var(--text-primary);
}

.photo-location {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

.photo-distance {
  color: var(--primary-color);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.photo-description {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  line-height: 1.4;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

/* 时间线面板 */
.timeline-panel {
  position: fixed;
  top: var(--header-height);
  right: -100%;
  width: 100%;
  max-width: 400px;
  height: calc(100vh - var(--header-height) - var(--toolbar-height));
  background: var(--background-primary);
  box-shadow: var(--shadow-large);
  z-index: 1500;
  transition: right var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.timeline-panel.show {
  right: 0;
}

.timeline-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
}

.timeline-header h3 {
  margin: 0;
  font-size: var(--font-size-lg);
  font-weight: 600;
}

.timeline-content {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-md);
}

.timeline-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 200px;
  text-align: center;
  gap: var(--spacing-md);
}

.empty-icon {
  font-size: 48px;
  opacity: 0.5;
}

.empty-text {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
}

.empty-hint {
  font-size: var(--font-size-sm);
  color: var(--text-disabled);
}

.timeline-date-section {
  margin-bottom: var(--spacing-lg);
}

.timeline-date-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--border-light);
}

.timeline-date {
  margin: 0;
  font-size: var(--font-size-md);
  font-weight: 600;
  color: var(--text-primary);
}

.timeline-count {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.timeline-photo-grid {
  display: grid;
  gap: var(--spacing-sm);
}

.timeline-photo-item {
  display: flex;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  border-radius: var(--radius-medium);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.timeline-photo-item:hover {
  background: var(--background-secondary);
}

.timeline-photo-thumbnail {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-medium);
  overflow: hidden;
  flex-shrink: 0;
}

.timeline-photo-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.timeline-photo-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--spacing-xs);
}

.timeline-photo-time {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-primary);
}

.timeline-photo-location {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
}

.timeline-photo-distance {
  font-size: var(--font-size-xs);
  color: var(--primary-color);
  font-weight: 500;
}

/* 通知栏 */
.notification {
  position: fixed;
  top: var(--spacing-md);
  left: 50%;
  transform: translateX(-50%) translateY(-100px);
  background: var(--background-primary);
  border-radius: var(--radius-medium);
  box-shadow: var(--shadow-medium);
  z-index: 3000;
  transition: transform var(--transition-normal);
  max-width: 90%;
  width: 400px;
}

.notification.show {
  transform: translateX(-50%) translateY(0);
}

.notification.success {
  background: var(--success-color);
  color: var(--text-white);
}

.notification.error {
  background: var(--error-color);
  color: var(--text-white);
}

.notification.warning {
  background: var(--warning-color);
  color: var(--text-white);
}

.notification.info {
  background: var(--info-color);
  color: var(--text-white);
}

.notification-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  gap: var(--spacing-md);
}

/* PWA安装横幅 */
.install-banner {
  position: fixed;
  bottom: calc(var(--toolbar-height) + var(--spacing-md));
  left: var(--spacing-md);
  right: var(--spacing-md);
  background: var(--background-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-large);
  box-shadow: var(--shadow-medium);
  z-index: 1500;
  transform: translateY(100%);
  transition: transform var(--transition-normal);
}

.install-banner.show {
  transform: translateY(0);
}

.install-banner-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  gap: var(--spacing-md);
}

.install-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.install-icon {
  font-size: var(--font-size-xxl);
}

.install-title {
  font-weight: 600;
  color: var(--text-primary);
}

.install-subtitle {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.install-actions {
  display: flex;
  gap: var(--spacing-sm);
}

/* 更新横幅 */
.update-banner {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  background: var(--primary-color);
  color: var(--text-white);
  z-index: 1500;
}

.update-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) var(--spacing-md);
  max-width: 1200px;
  margin: 0 auto;
}

/* 响应式设计 */
@media (max-width: 768px) {
  :root {
    --spacing-md: 12px;
    --spacing-lg: 16px;
    --spacing-xl: 24px;
    --font-size-md: 14px;
    --font-size-lg: 16px;
    --font-size-xl: 18px;
  }

  .header-content {
    padding: 0 var(--spacing-sm);
  }

  .app-title, .page-title {
    font-size: var(--font-size-lg);
  }

  .timeline-panel {
    width: 100%;
    max-width: 100%;
  }

  .modal {
    padding: var(--spacing-sm);
  }

  .modal-content {
    max-width: 100%;
  }

  .install-banner-content {
    flex-direction: column;
    align-items: stretch;
    gap: var(--spacing-sm);
  }

  .install-info {
    justify-content: center;
  }

  .install-actions {
    justify-content: center;
  }

  .bottom-toolbar {
    gap: var(--spacing-lg);
  }

  .toolbar-btn {
    min-width: 50px;
  }
}

@media (max-width: 480px) {
  :root {
    --spacing-sm: 6px;
    --spacing-md: 10px;
    --spacing-lg: 14px;
    --spacing-xl: 20px;
  }

  .bottom-toolbar {
    gap: var(--spacing-md);
  }

  .toolbar-btn {
    min-width: 40px;
    font-size: 10px;
  }

  .photo-item {
    padding: var(--spacing-sm);
  }

  .photo-thumbnail {
    width: 60px;
    height: 60px;
  }
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
  :root {
    --text-primary: #FFFFFF;
    --text-secondary: #BDBDBD;
    --text-disabled: #757575;
    
    --background-primary: #121212;
    --background-secondary: #1E1E1E;
    --background-card: #2C2C2C;
    --background-overlay: rgba(0, 0, 0, 0.7);
    
    --border-color: #333333;
    --border-light: #2C2C2C;
  }

  .btn-secondary {
    background: var(--background-card);
  }

  .btn-icon:hover {
    background: var(--background-card);
  }

  .notification {
    background: var(--background-card);
  }
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
  :root {
    --border-color: #000000;
    --shadow-small: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-medium: 0 4px 8px rgba(0, 0, 0, 0.4);
    --shadow-large: 0 8px 16px rgba(0, 0, 0, 0.5);
  }
}

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}