/* Shop / Referral products page - responsive */

.shop-hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  padding: 5rem 0 3.5rem;
  text-align: center;
  color: white;
  position: relative;
  overflow: hidden;
}

.shop-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('../images/tet-background-pattern.svg') repeat;
  opacity: 0.1;
  z-index: 1;
}

.shop-hero .container {
  position: relative;
  z-index: 2;
}

.shop-hero h1 {
  font-size: clamp(1.75rem, 5vw, 2.75rem);
  font-weight: 800;
  margin-bottom: 0.75rem;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.shop-hero p {
  font-size: clamp(0.95rem, 2.5vw, 1.15rem);
  margin-bottom: 0;
  opacity: 0.95;
}

.shop-section {
  padding: 2rem 0 3rem;
}

.shop-section .container {
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

@media (min-width: 768px) {
  .shop-section .container {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

.shop-back {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: opacity 0.2s;
}

.shop-back:hover {
  opacity: 0.85;
}

.shop-categories {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  justify-content: center;
}

.shop-category-btn {
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  border: 2px solid var(--color-primary);
  background: #fff;
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, transform 0.15s;
  white-space: nowrap;
}

.shop-category-btn:hover {
  background: rgba(211, 47, 47, 0.08);
}

.shop-category-btn.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.shop-category-btn:active {
  transform: scale(0.98);
}

/* Product grid - 1 col mobile, 2 tablet, 3–4 desktop */
.shop-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: 1rem;
}

@media (min-width: 480px) {
  .shop-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
}

@media (min-width: 768px) {
  .shop-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .shop-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
  }
}

.shop-card {
  background: #fff;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  transition: box-shadow 0.25s, transform 0.25s;
  display: flex;
  flex-direction: column;
  border: 1px solid rgba(0, 0, 0, 0.06);
}

.shop-card:hover {
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
  transform: translateY(-2px);
}

.shop-card-link {
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  cursor: pointer;
}

.shop-card-thumb {
  position: relative;
  aspect-ratio: 1;
  background: #f5f5f5;
  overflow: hidden;
}

.shop-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.shop-card-thumb img[src=""],
.shop-card-thumb img:not([src]) {
  visibility: hidden;
}

.shop-card-thumb .shop-card-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #eee 0%, #e0e0e0 100%);
  color: #999;
  font-size: 2.5rem;
}

.shop-card-badge {
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
}

.shop-card-badge.shopee {
  background: #ee4d2d;
  color: #fff;
}

.shop-card-badge.tiktok {
  background: #000;
  color: #fff;
}

.shop-card-body {
  padding: 1rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.shop-card-name {
  font-size: clamp(0.9rem, 2vw, 1rem);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 0.35rem;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.shop-card-desc {
  font-size: 0.8rem;
  color: var(--color-text-secondary, #666);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 0.75rem;
  flex: 1;
}

.shop-card-actions {
  display: flex;
  align-items: stretch;
  gap: 0.5rem;
  padding: 0 1rem 1.25rem;
  min-height: 48px;
  flex-shrink: 0;
}

.shop-card-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 1rem;
  border-radius: 10px;
  font-size: 0.85rem;
  font-weight: 600;
  text-align: center;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: #fff;
  text-decoration: none;
  border: none;
  flex: 1;
  min-width: 0;
  min-height: 48px;
  height: 100%;
  box-sizing: border-box;
  transition: opacity 0.2s, transform 0.15s;
}

.shop-card-cta:hover {
  opacity: 0.95;
  transform: scale(1.02);
}

.shop-card-cta:active {
  transform: scale(0.98);
}

.shop-card-share {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  min-width: 48px;
  min-height: 48px;
  flex-shrink: 0;
  padding: 0;
  border-radius: 10px;
  border: none;
  background: rgba(0, 0, 0, 0.08);
  color: var(--color-text-primary);
  cursor: pointer;
  transition: background 0.2s, color 0.2s, transform 0.15s;
  align-self: stretch;
  box-sizing: border-box;
}

.shop-card-share:hover {
  background: rgba(0, 0, 0, 0.12);
  transform: scale(1.05);
}

.shop-card-share:active {
  transform: scale(0.98);
}

.shop-card-share svg {
  display: block;
}

.shop-loading,
.shop-error {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--color-text-secondary, #666);
}

.shop-loading {
  font-size: 1.1rem;
}

.shop-error {
  color: var(--color-primary);
  font-weight: 600;
}

.shop-empty {
  text-align: center;
  padding: 2rem 1rem;
  color: var(--color-text-secondary);
  font-size: 1rem;
}

/* Mobile: touch-friendly category scroll optional */
@media (max-width: 767px) {
  .shop-hero {
    padding: 4rem 0 2.5rem;
  }

  .shop-categories {
    justify-content: flex-start;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    margin-left: -1rem;
  }

  .shop-categories::-webkit-scrollbar {
    display: none;
  }

  .shop-category-btn {
    flex-shrink: 0;
  }
}

/* Toast khi share / copy link */
.shop-share-toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(1rem);
  padding: 0.6rem 1.25rem;
  border-radius: 9999px;
  background: rgba(0, 0, 0, 0.85);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 500;
  z-index: 9999;
  opacity: 0;
  transition: opacity 0.3s, transform 0.3s;
  pointer-events: none;
}

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