/* Visual Enhancements - 视觉增强样式 */

/* ============================================
   全局增强效果
   ============================================ */

/* 平滑的页面滚动 */
html {
  scroll-behavior: smooth;
}

/* 选中文本高亮效果 */
::selection {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* 平滑的焦点样式 */
*:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* 图片懒加载淡入效果 */
img[loading] {
  opacity: 0;
  transition: opacity 0.3s ease-in;
}

img.loaded {
  opacity: 1;
}

/* ============================================
   按钮涟漪效果
   ============================================ */

.btn-ripple {
  position: relative;
  overflow: hidden;
}

.btn-ripple::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
}

.btn-ripple:active::after {
  width: 300px;
  height: 300px;
}

/* ============================================
   卡片微动画
   ============================================ */

.card-micro-bounce {
  animation: microBounce 0.3s ease;
}

@keyframes microBounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-4px);
  }
}

/* ============================================
   文字渐变效果
   ============================================ */

.text-gradient {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================
   光标跟随效果
   ============================================ */

.cursor-follow {
  position: relative;
}

.cursor-follow::before {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  background: radial-gradient(circle, var(--color-primary) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.cursor-follow:hover::before {
  opacity: 0.5;
}

/* ============================================
   渐变边框
   ============================================ */

.gradient-border {
  position: relative;
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
}

.gradient-border::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-lg);
  z-index: -1;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.gradient-border:hover::before {
  opacity: 1;
}

/* ============================================
   阴影动画
   ============================================ */

.shadow-animate {
  transition: box-shadow 0.3s ease;
}

.shadow-animate:hover {
  animation: shadowPulse 1s ease infinite;
}

@keyframes shadowPulse {
  0%, 100% {
    box-shadow: 0 10px 30px rgba(196, 30, 58, 0.1);
  }
  50% {
    box-shadow: 0 15px 40px rgba(196, 30, 58, 0.15);
  }
}

/* ============================================
   加载骨架屏
   ============================================ */

.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-gray-200) 25%,
    var(--color-gray-100) 50%,
    var(--color-gray-200) 75%
  );
  background-size: 200% 100%;
  animation: skeleton 1.5s ease-in-out infinite;
}

@keyframes skeleton {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* ============================================
   通知徽章
   ============================================ */

.badge-pulse {
  position: relative;
}

.badge-pulse::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 8px;
  height: 8px;
  background: var(--color-primary);
  border-radius: 50%;
  animation: badgePulse 2s ease infinite;
}

@keyframes badgePulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(1.2);
  }
}

/* ============================================
   工具提示增强
   ============================================ */

.tooltip-enhanced {
  position: relative;
}

.tooltip-enhanced::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-secondary);
  color: var(--text-light);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-md);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  pointer-events: none;
}

.tooltip-enhanced:hover::after {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(-4px);
}