/* ============================================
   若见茶舍 - 动画样式
   ============================================ */

/* --- 页面淡入 --- */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- 左滑入 --- */
.fade-in-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

/* --- 右滑入 --- */
.fade-in-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* --- 缩放淡入 --- */
.scale-in {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.scale-in.visible {
  opacity: 1;
  transform: scale(1);
}

/* --- 交错动画延迟 --- */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }

/* --- Hero 文字动画 --- */
.hero-badge {
  animation: fadeSlideUp 0.8s ease forwards;
}

.hero h1 {
  animation: fadeSlideUp 0.8s ease 0.2s both;
}

.hero p {
  animation: fadeSlideUp 0.8s ease 0.4s both;
}

.hero-actions {
  animation: fadeSlideUp 0.8s ease 0.6s both;
}

@keyframes fadeSlideUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --- 按钮脉冲光晕 --- */
.btn-primary {
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.btn-primary:hover::before {
  opacity: 1;
}

/* --- 卡片 hover 上浮 --- */
.card {
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.35s ease;
}

/* --- 输入框聚焦动画 --- */
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--color-green) !important;
  box-shadow: 0 0 0 3px rgba(107,127,93,0.15);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

/* --- 导航栏滚动阴影 --- */
.navbar {
  transition: box-shadow 0.3s ease, background 0.3s ease;
}

/* --- 页面切换淡入 --- */
.page-enter {
  animation: pageIn 0.5s ease forwards;
}

@keyframes pageIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* --- 加载旋转 --- */
@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-spinner {
  width: 32px; height: 32px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-green);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

/* --- 茶叶飘落动画（装饰用） --- */
@keyframes leafFall {
  0%   { transform: translateY(-10vh) rotate(0deg); opacity: 0; }
  10%  { opacity: 0.6; }
  90%  { opacity: 0.4; }
  100% { transform: translateY(110vh) rotate(720deg); opacity: 0; }
}

.leaf-particle {
  position: fixed;
  top: -40px;
  font-size: 1.2rem;
  opacity: 0;
  pointer-events: none;
  animation: leafFall linear infinite;
  z-index: 0;
}

/* --- 成功提示弹出 --- */
.toast {
  position: fixed;
  bottom: 30px; left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--color-dark);
  color: var(--color-white);
  padding: 12px 24px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  z-index: 9999;
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
}

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

/* --- 购物车弹出动画 --- */
.cart-pop {
  animation: cartPop 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes cartPop {
  0%   { transform: scale(1); }
  30%  { transform: scale(1.25); }
  60%  { transform: scale(0.95); }
  100% { transform: scale(1); }
}

/* --- 骨架屏加载 --- */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-border) 25%,
    #EDE7D9 50%,
    var(--color-border) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

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