/**
 * 图片查看器优化样式
 * 解决层级问题和关闭按钮无法点击的问题
 * 提供更好的用户体验和视觉效果
 */

/* 图片查看模态框基础样式 */
.image-viewer-modal {
  z-index: 1300 !important;
  backdrop-filter: blur(5px) !important;
  -webkit-backdrop-filter: blur(5px) !important;
}

.image-viewer-modal .modal-backdrop {
  z-index: 1290 !important;
  background-color: rgba(0, 0, 0, 0.8) !important;
}

.image-viewer-modal .modal-dialog {
  max-width: 90%;
  margin: 1.75rem auto;
  position: relative;
  z-index: 1301;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 3.5rem);
}

.image-viewer-modal .modal-content {
  background-color: rgba(0, 0, 0, 0.9);
  border: none;
  border-radius: 16px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.image-viewer-modal .modal-body {
  padding: 30px;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 200px;
  position: relative;
}

.image-viewer-modal img {
  max-width: 100%;
  max-height: 85vh;
  object-fit: contain;
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: zoom-in;
}

.image-viewer-modal img:hover {
  transform: scale(1.02);
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.6);
}

/* 关闭按钮优化 */
.image-viewer-modal .btn-close {
  position: absolute !important;
  top: 20px !important;
  right: 20px !important;
  width: 48px !important;
  height: 48px !important;
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.6)) !important;
  border: 2px solid rgba(255, 255, 255, 0.8) !important;
  border-radius: 50% !important;
  z-index: 1320 !important;
  opacity: 1 !important;
  display: flex !important;
  visibility: visible !important;
  align-items: center !important;
  justify-content: center !important;
  cursor: pointer !important;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.2) !important;
  backdrop-filter: blur(15px) !important;
  -webkit-backdrop-filter: blur(15px) !important;
  pointer-events: auto !important;
}

.image-viewer-modal .btn-close::before,
.image-viewer-modal .btn-close::after {
  content: '' !important;
  position: absolute !important;
  background-color: #fff !important;
  width: 22px !important;
  height: 2.5px !important;
  border-radius: 2px !important;
  transition: all 0.2s ease !important;
}

.image-viewer-modal .btn-close::before {
  transform: rotate(45deg) !important;
}

.image-viewer-modal .btn-close::after {
  transform: rotate(-45deg) !important;
}

.image-viewer-modal .btn-close:hover {
  background: linear-gradient(135deg, rgba(220, 53, 69, 0.9), rgba(220, 53, 69, 0.7)) !important;
  border-color: rgba(255, 255, 255, 1) !important;
  transform: scale(1.1) rotate(90deg) !important;
  box-shadow: 0 8px 30px rgba(220, 53, 69, 0.4), 0 0 0 2px rgba(255, 255, 255, 0.4) !important;
}

.image-viewer-modal .btn-close:hover::before,
.image-viewer-modal .btn-close:hover::after {
  background-color: #fff !important;
  width: 24px !important;
  height: 3px !important;
}

.image-viewer-modal .btn-close:active {
  transform: scale(0.95) rotate(90deg) !important;
}

/* 确保关闭按钮始终可见和可点击 */
.image-viewer-modal .btn-close,
.image-viewer-modal.show .btn-close,
.image-viewer-modal .image-viewer-close,
.modal-open .image-viewer-modal .btn-close {
  display: flex !important;
  visibility: visible !important;
  opacity: 1 !important;
  position: absolute !important;
  z-index: 1320 !important;
  pointer-events: auto !important;
}

/* 移动端优化 */
@media (max-width: 768px) {
  .image-viewer-modal .modal-dialog {
    margin: 0 !important;
    max-width: 100% !important;
    width: 100% !important;
    height: 100vh !important;
    min-height: 100vh !important;
  }

  .image-viewer-modal .modal-content {
    background-color: rgba(0, 0, 0, 0.95) !important;
    border-radius: 0 !important;
    width: 100% !important;
    height: 100vh !important;
  }

  .image-viewer-modal .modal-body {
    padding: 20px !important;
    height: 100vh !important;
  }

  .image-viewer-modal img {
    max-width: 95% !important;
    max-height: 90vh !important;
  }

  .image-viewer-modal .btn-close {
    position: fixed !important;
    top: 20px !important;
    right: 20px !important;
    width: 44px !important;
    height: 44px !important;
    z-index: 1330 !important;
  }

  .image-viewer-modal .btn-close::before,
  .image-viewer-modal .btn-close::after {
    width: 20px !important;
    height: 2px !important;
  }

  .image-viewer-modal .btn-close:hover::before,
  .image-viewer-modal .btn-close:hover::after {
    width: 22px !important;
    height: 2.5px !important;
  }

  /* 适配刘海屏和安全区域 */
  @supports (padding-top: env(safe-area-inset-top)) {
    .image-viewer-modal .btn-close {
      top: calc(20px + env(safe-area-inset-top)) !important;
      right: calc(20px + env(safe-area-inset-right)) !important;
    }
  }
}

/* 深色模式适配 */
.dark-mode .image-viewer-modal .modal-content {
  background-color: rgba(0, 0, 0, 0.95) !important;
}

.dark-mode .image-viewer-modal .btn-close {
  background: linear-gradient(135deg, rgba(33, 37, 41, 0.9), rgba(33, 37, 41, 0.7)) !important;
  border-color: rgba(255, 255, 255, 0.9) !important;
}

.dark-mode .image-viewer-modal .btn-close:hover {
  background: linear-gradient(135deg, rgba(220, 53, 69, 0.9), rgba(220, 53, 69, 0.7)) !important;
}

/* 加载状态 */
.image-viewer-modal .modal-body.loading {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='40' height='40' viewBox='0 0 50 50'%3E%3Cpath fill='%23fff' d='M25,5A20.14,20.14,0,0,1,45,22.88a2.51,2.51,0,0,0,2.49,2.26h0A2.52,2.52,0,0,0,50,22.33a25.14,25.14,0,0,0-50,0,2.52,2.52,0,0,0,2.5,2.81h0A2.51,2.51,0,0,0,5,22.88,20.14,20.14,0,0,1,25,5Z'%3E%3CanimateTransform attributeName='transform' type='rotate' from='0 25 25' to='360 25 25' dur='0.5s' repeatCount='indefinite'/%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
}

/* 动画效果 */
.image-viewer-modal.fade .modal-dialog {
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s ease;
  transform: scale(0.8) translateY(20px);
  opacity: 0;
}

.image-viewer-modal.show .modal-dialog {
  transform: scale(1) translateY(0);
  opacity: 1;
}

/* 防止页面滚动 */
body.modal-open {
  overflow: hidden !important;
}

/* 确保图片查看器在所有其他元素之上 */
.image-viewer-modal {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  width: 100% !important;
  height: 100% !important;
}