/**
 * 社交分享组件样式
 * 支持：Twitter, Facebook, LinkedIn, Reddit, Copy Link
 */

/* 分享容器 */
.share-section {
  margin: var(--spacing-xl) 0;
  padding: var(--spacing-lg);
  background-color: var(--color-bg-light);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
}

.share-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--color-text-dark);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.share-title-icon {
  font-size: 1.3rem;
}

/* 分享按钮容器 */
.share-buttons {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

/* 分享按钮基础样式 */
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  border: 2px solid transparent;
  border-radius: var(--border-radius);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  color: white;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.share-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.share-btn:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 3px;
}

.share-btn:active {
  transform: translateY(0);
}

.share-icon {
  font-size: 1.1rem;
}

/* Twitter */
.share-btn.twitter {
  background-color: #1DA1F2;
}

.share-btn.twitter:hover {
  background-color: #1a8cd8;
}

/* Facebook */
.share-btn.facebook {
  background-color: #1877F2;
}

.share-btn.facebook:hover {
  background-color: #1664d9;
}

/* LinkedIn */
.share-btn.linkedin {
  background-color: #0A66C2;
}

.share-btn.linkedin:hover {
  background-color: #094fa0;
}

/* Reddit */
.share-btn.reddit {
  background-color: #FF4500;
}

.share-btn.reddit:hover {
  background-color: #e03d00;
}

/* Copy Link */
.share-btn.copy {
  background-color: #6c757d;
  border: 2px solid #6c757d;
}

.share-btn.copy:hover {
  background-color: #5a6268;
  border-color: #5a6268;
}

.share-btn.copy.copied {
  background-color: #28a745;
  border-color: #28a745;
}

/* 分享统计（可选） */
.share-stats {
  margin-top: var(--spacing-md);
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* 浮动分享按钮（可选） */
.floating-share {
  position: fixed;
  right: var(--spacing-lg);
  top: 50%;
  transform: translateY(-50%);
  z-index: 900;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

.floating-share.visible {
  opacity: 1;
  pointer-events: auto;
}

.floating-share .share-btn {
  width: 50px;
  height: 50px;
  padding: 0;
  justify-content: center;
  border-radius: 50%;
}

.floating-share .share-btn .share-text {
  display: none;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .share-buttons {
    justify-content: center;
  }

  .share-btn {
    flex: 1;
    min-width: 120px;
    justify-content: center;
  }

  .floating-share {
    display: none;
  }
}

@media (max-width: 576px) {
  .share-btn {
    width: 100%;
    justify-content: center;
  }

  .share-btn .share-text {
    display: inline;
  }
}

/* 深色模式 */
@media (prefers-color-scheme: dark) {
  .share-section {
    background-color: #2d3748;
    border-color: #4a5568;
  }
}

/* 打印时隐藏 */
@media print {
  .share-section,
  .floating-share {
    display: none;
  }
}

/* Toast提示（复制成功） */
.share-toast {
  position: fixed;
  bottom: var(--spacing-lg);
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  padding: var(--spacing-md) var(--spacing-lg);
  background-color: #28a745;
  color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  z-index: 9999;
  opacity: 0;
  transition: all 0.3s ease;
  pointer-events: none;
}

.share-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}