/* 
 * 现代化上传区域样式 - TG-Image
 */

/* 上传容器 */
.upload-container {
  background-color: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin: 2rem auto;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition);
  position: relative;
  z-index: 10;
  max-width: 850px;
  border: 1px solid rgba(var(--primary-light-rgb), 0.1);
  overflow: hidden;
}

body.dark-mode .upload-container {
  background-color: var(--dark-card-bg);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
  border-color: rgba(255, 255, 255, 0.05);
}

/* 上传区域标题 */
.upload-header {
  text-align: center;
  margin-bottom: 1.5rem;
}

.upload-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-color);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}

body.dark-mode .upload-title {
  color: var(--dark-text);
}

.upload-title i {
  font-size: 1.8rem;
  color: var(--primary-color);
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.upload-subtitle {
  color: var(--text-light);
  font-size: 1.1rem;
  margin-top: 0.5rem;
}

body.dark-mode .upload-subtitle {
  color: var(--dark-text-light);
}

/* 上传区域 */
.upload-area {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg,
    rgba(var(--primary-light-rgb), 0.03) 0%,
    rgba(var(--primary-dark-rgb), 0.03) 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 250px;
}

body.dark-mode .upload-area {
  border-color: var(--dark-border);
  background: linear-gradient(135deg,
    rgba(var(--primary-light-rgb), 0.05) 0%,
    rgba(var(--primary-dark-rgb), 0.05) 100%);
}

.upload-area::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(45deg,
    rgba(var(--primary-light-rgb), 0.08),
    rgba(var(--primary-dark-rgb), 0.08));
  opacity: 0;
  transition: opacity var(--transition);
  z-index: -1;
}

.upload-area::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg,
    rgba(255, 255, 255, 0),
    rgba(255, 255, 255, 0.2),
    rgba(255, 255, 255, 0));
  transform: skewX(-15deg);
  transition: all 0.8s;
  z-index: 1;
  pointer-events: none;
}

.upload-area:hover::before,
.upload-area.drag-over::before {
  opacity: 1;
}

.upload-area:hover::after {
  left: 100%;
}

.upload-area:hover,
.upload-area.drag-over {
  border-color: var(--primary-color);
  transform: translateY(-4px);
  box-shadow: 0 15px 35px rgba(var(--primary-light-rgb), 0.25);
}

/* 上传图标 */
.upload-icon {
  color: white;
  margin-bottom: 1.5rem;
  transition: all var(--transition);
  background: var(--primary-gradient);
  width: 90px;
  height: 90px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px rgba(var(--primary-light-rgb), 0.3);
}

.upload-icon i {
  font-size: 2.5rem;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.upload-area:hover .upload-icon {
  transform: translateY(-8px) scale(1.05);
  box-shadow: 0 15px 30px rgba(var(--primary-light-rgb), 0.4);
}

/* 上传文本 */
.upload-text {
  margin-top: 1.5rem;
  font-size: 1.25rem;
  color: var(--text-color);
  font-weight: 600;
  transition: all var(--transition);
}

body.dark-mode .upload-text {
  color: var(--dark-text);
}

.browse-text {
  color: var(--primary-color);
  cursor: pointer;
  text-decoration: underline;
  font-weight: 700;
  transition: all var(--transition-fast);
}

.browse-text:hover {
  color: var(--primary-dark);
}

/* 上传提示 */
.upload-hint {
  margin-top: 1rem;
  color: var(--text-light);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  max-width: 90%;
  margin-left: auto;
  margin-right: auto;
}

body.dark-mode .upload-hint {
  color: var(--dark-text-light);
}

.upload-hint-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
}

.upload-hint-item i {
  color: var(--primary-light);
  font-size: 1.1rem;
}

kbd {
  background-color: var(--card-bg-hover);
  border-radius: 4px;
  border: 1px solid var(--border-color);
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.1);
  color: var(--text-color);
  display: inline-block;
  font-size: 0.85em;
  font-weight: 600;
  line-height: 1;
  padding: 0.2em 0.4em;
  margin: 0 0.1em;
  vertical-align: middle;
}

body.dark-mode kbd {
  background-color: var(--dark-card-bg-hover);
  border-color: var(--dark-border);
  color: var(--dark-text);
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.2);
}

/* 结果容器 */
.result-container {
  background-color: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  transition: all var(--transition);
  animation: fadeIn 0.5s ease-out;
  max-width: 850px;
  margin-left: auto;
  margin-right: auto;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(var(--primary-light-rgb), 0.1);
}

body.dark-mode .result-container {
  background-color: var(--dark-card-bg);
  border-color: rgba(255, 255, 255, 0.05);
}

/* 结果标题 */
.result-header {
  margin-bottom: 1.5rem;
}

.result-header h3 {
  color: var(--success-color);
  font-size: 1.6rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.result-header h3 i {
  font-size: 1.6rem;
  background: linear-gradient(135deg, var(--success-color), #0ea5e9);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.result-subtitle {
  color: var(--text-light);
  font-size: 1rem;
}

body.dark-mode .result-subtitle {
  color: var(--dark-text-light);
}

/* 图片预览 */
.image-preview {
  margin: 1.5rem auto;
  max-width: 500px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition);
  position: relative;
  border: 3px solid var(--card-bg);
  cursor: pointer;
}

body.dark-mode .image-preview {
  border-color: var(--dark-card-bg);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.image-preview-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent 70%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding-bottom: 1rem;
  opacity: 0;
  transition: opacity var(--transition);
  color: white;
  gap: 0.5rem;
}

.image-preview:hover .image-preview-overlay {
  opacity: 1;
}

.image-preview-overlay i {
  font-size: 1.5rem;
}

.image-preview:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(var(--primary-light-rgb), 0.3);
}

/* 结果操作按钮 */
.result-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
}

.share-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .upload-container {
    padding: 1.5rem;
    margin: 1rem auto;
  }
  
  .upload-title {
    font-size: 1.5rem;
  }
  
  .upload-title i {
    font-size: 1.5rem;
  }
  
  .upload-subtitle {
    font-size: 1rem;
  }
  
  .upload-area {
    padding: 1.5rem 1rem;
    min-height: 200px;
  }
  
  .upload-icon {
    width: 70px;
    height: 70px;
    margin-bottom: 1rem;
  }
  
  .upload-icon i {
    font-size: 2rem;
  }
  
  .upload-text {
    font-size: 1.1rem;
    margin-top: 1rem;
  }
  
  .upload-hint {
    flex-direction: column;
    gap: 0.5rem;
    align-items: center;
  }
  
  .result-header h3 {
    font-size: 1.4rem;
  }
  
  .result-header h3 i {
    font-size: 1.4rem;
  }
  
  .result-actions {
    flex-direction: column;
    gap: 0.75rem;
  }
  
  .upload-again-btn,
  .share-btn {
    width: 100%;
  }
}