/* 全局样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  min-height: 100vh;
}

/* 自定义滚动条 */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb {
  background: #c1c1c1;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #a8a8a8;
}

/* 动画效果 */
.fade-enter-active, .fade-leave-active {
  transition: opacity 0.3s ease;
}

.fade-enter-from, .fade-leave-to {
  opacity: 0;
}

.slide-up-enter-active, .slide-up-leave-active {
  transition: all 0.3s ease;
}

.slide-up-enter-from {
  opacity: 0;
  transform: translateY(30px);
}

.slide-up-leave-to {
  opacity: 0;
  transform: translateY(-30px);
}

/* 卡片阴影效果 */
.card-shadow {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: box-shadow 0.3s ease;
}

.card-shadow:hover {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

/* 按钮样式增强 */
.btn-gradient {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border: none;
  color: white;
  transition: all 0.3s ease;
}

.btn-gradient:hover {
  background: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
  transform: translateY(-1px);
}

/* 加载动画 */
.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid #f3f3f3;
  border-top: 2px solid #667eea;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* 响应式工具类 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

@media (max-width: 768px) {
  .container {
    padding: 0 15px;
  }
}

/* 文字样式 */
.text-gradient {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 状态指示器 */
.status-indicator {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 8px;
}

.status-todo {
  background-color: #909399;
}

.status-in-progress {
  background-color: #e6a23c;
}

.status-completed {
  background-color: #67c23a;
}

/* 优先级颜色 */
.priority-high {
  color: #f56565;
}

.priority-medium {
  color: #ed8936;
}

.priority-low {
  color: #48bb78;
}