/**
 * LoginLab华丽加载动画样式
 * 配合loginlab-loader.js插件使用
 * 
 * @version 1.0.0
 * @author LoginLab Team
 */

/* LoginLab华丽加载动画样式 */
.loginlab-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, #0a1220 0%, #0b1220 40%, #0b1220 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  opacity: 1;
  transition: opacity 0.5s ease-out;
}

.loginlab-loader.hide {
  opacity: 0;
  pointer-events: none;
}

.loader-container {
  position: relative;
  text-align: center;
  max-width: 600px;
  width: 90%;
}

/* 背景装饰效果 */
.loader-bg-effects {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 400px;
  height: 400px;
  pointer-events: none;
}

.loader-circle {
  position: absolute;
  border-radius: 50%;
  opacity: 0.1;
}

.loader-circle-1 {
  width: 300px;
  height: 300px;
  border: 2px solid rgba(46, 160, 255, 0.2);
  top: 50px;
  left: 50px;
}

.loader-circle-2 {
  width: 200px;
  height: 200px;
  border: 1px solid rgba(46, 160, 255, 0.15);
  top: 100px;
  left: 100px;
}

.loader-circle-3 {
  width: 100px;
  height: 100px;
  border: 1px solid rgba(46, 160, 255, 0.1);
  top: 150px;
  left: 150px;
}

/* 主标题样式 */
.loader-title {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: 4rem;
  color: #ffffff;
  margin: 0 0 1rem 0;
  position: relative;
}

.text-wrapper {
  position: relative;
  display: inline-block;
  padding: 0.2em 0.1em;
  overflow: hidden;
}

.letters {
  display: inline-block;
  position: relative;
  z-index: 2;
}

.letter {
  display: inline-block;
  line-height: 1em;
  transform-origin: 50% 50%;
}

/* 装饰线条 */
.line {
  position: absolute;
  left: 0;
  height: 3px;
  width: 100%;
  background: linear-gradient(90deg, transparent, #ffffff, transparent);
  opacity: 0;
  transform-origin: 0 50%;
}

.line-top {
  top: 0;
}

.line-bottom {
  bottom: 0;
}

/* 副标题样式 */
.loader-subtitle {
  font-family: 'Inter', sans-serif;
  font-weight: 300;
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.8);
  margin: 0 0 2rem 0;
  letter-spacing: 0.1em;
}

.subtitle-letters {
  display: inline-block;
}

.subtitle-letter {
  display: inline-block;
  opacity: 0;
}

/* 进度条样式 */
.loader-progress {
  margin-top: 3rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
}

.progress-bar {
  width: 100%;
  height: 2px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 1px;
  overflow: hidden;
  position: relative;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #2ea0ff, rgba(46, 160, 255, 0.8));
  border-radius: 1px;
  width: 0%;
  transition: width 0.3s ease;
  box-shadow: 0 0 10px rgba(46, 160, 255, 0.3);
}

.progress-text {
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 0.05em;
  text-align: center;
  width: 100%;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .loader-title {
    font-size: 3rem;
  }
  
  .loader-subtitle {
    font-size: 1rem;
  }
  
  .loader-bg-effects {
    width: 300px;
    height: 300px;
  }
  
  .loader-circle-1 {
    width: 250px;
    height: 250px;
    top: 25px;
    left: 25px;
  }
  
  .loader-circle-2 {
    width: 180px;
    height: 180px;
    top: 60px;
    left: 60px;
  }
  
  .loader-circle-3 {
    width: 100px;
    height: 100px;
    top: 100px;
    left: 100px;
  }
}

@media (max-width: 480px) {
  .loader-title {
    font-size: 2.5rem;
  }
  
  .loader-subtitle {
    font-size: 0.9rem;
  }
  
  .loader-container {
    width: 95%;
  }
  
  .loader-bg-effects {
    width: 250px;
    height: 250px;
  }
  
  .loader-circle-1 {
    width: 200px;
    height: 200px;
    top: 25px;
    left: 25px;
  }
  
  .loader-circle-2 {
    width: 140px;
    height: 140px;
    top: 55px;
    left: 55px;
  }
  
  .loader-circle-3 {
    width: 80px;
    height: 80px;
    top: 85px;
    left: 85px;
  }
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
  .loginlab-loader {
    background: #000000;
  }
  
  .loader-title {
    color: #ffffff;
  }
  
  .loader-subtitle {
    color: #ffffff;
  }
  
  .progress-text {
    color: #ffffff;
  }
  
  .loader-circle-1,
  .loader-circle-2,
  .loader-circle-3 {
    border-color: #ffffff;
    opacity: 0.5;
  }
}

/* 减少动画模式支持 */
@media (prefers-reduced-motion: reduce) {
  .loginlab-loader {
    transition: none;
  }
  
  .progress-fill {
    transition: none;
  }
  
  /* 在减少动画模式下，圆圈不旋转 */
  .loader-circle {
    animation: none !important;
  }
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
  .loginlab-loader {
    background: linear-gradient(180deg, #000000 0%, #0a0a0a 40%, #0a0a0a 100%);
  }
}

/* 打印样式 */
@media print {
  .loginlab-loader {
    display: none !important;
  }
}