/* Reset */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'Segoe UI', Arial, sans-serif;
  background: #f9f9f9;
  color: #333;
  line-height: 1.6;
}

/* Hero */
.hero-section {
  position: relative;
  height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -2;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: -1;
}
.hero-content {
  text-align: center;
  color: #fff;
}
.hero-title {
  font-family: 'Times New Roman', serif;
  font-size: 3rem;
  font-weight: 400;
  letter-spacing: 2px;
}

/* Section */
.collections-section {
  padding: 60px 5% 100px; /* Extra bottom padding to avoid footer overlap */
}
.error-box {
  margin: 20px auto 0;
  max-width: 900px;
  background: #fff3f3;
  color: #a40000;
  border: 1px solid #ffc9c9;
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 14px;
}

/* Grid */
.collections-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-bottom: 80px; /* Prevent last card overflow */
}
.category-title {
  grid-column: 1 / -1;
  font-size: 1.8rem;
  font-weight: 700;
  color: #04423e;
  position: relative;
  padding-left: 10px;
  margin: 6px 0 6px;
}
.category-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 1.5em;
  background: #04423e;
  border-radius: 3px;
}

/* Flip Card */
.flip-card {
  background: transparent;
  width: 220px;
  height: 350px;
  perspective: 1000px;
  margin: 14px auto;
}
.flip-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.6s cubic-bezier(.4,2,.3,1);
  transform-style: preserve-3d;
}
.flip-card:hover .flip-card-inner {
  transform: rotateY(180deg);
}
.flip-card-front,
.flip-card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  border-radius: 15px;
  overflow: hidden;
}
.flip-card-front {
  z-index: 2;
}
.flip-card-back {
  transform: rotateY(180deg);
  z-index: 1;
  background: #fff;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* FRONT */
.flip-card-front {
  background: #fff;
  display: flex;
  flex-direction: column;
}
.product-img {
  width: 100%;
  height: 144px;
  object-fit: cover;
}
.badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: linear-gradient(45deg, #0e8581, #085839);
  color: #fff;
  padding: 5px 10px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  border-radius: 8px;
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.2);
}
.front-meta {
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.title {
  font-size: 15px;
  font-weight: 700;
  color: #18181B;
  line-height: 1.2;
}
.cat {
  font-size: 9px;
  text-transform: uppercase;
  color: #71717A;
}
.feats {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.feat {
  font-size: 9px;
  background: #F4F4F5;
  color: #555;
  padding: 2px 6px;
  border-radius: 10px;
  font-weight: 500;
}
.price .new {
  font-size: 13px;
  font-weight: 700;
  color: #04423e;
}
.btn {
  align-self: flex-start;
  border: none;
  border-radius: 10px;
  padding: 6px 10px;
  font-size: 10px;
  font-weight: 600;
  color: #fff;
  cursor: pointer;
  background: linear-gradient(45deg, #04423e, #209890);
  transition: transform 0.2s;
}
.btn:hover {
  transform: translateY(-2px);
}

/* BACK */
.flip-card-back {
  background: #fff;
  transform: rotateY(180deg);
  display: flex;
  flex-direction: column;
  padding: 16px;
}
.back-title {
  font-size: 13px;
  color: #04423e;
  margin-bottom: 8px;
}
.details {
  list-style: none;
  font-size: 11px;
  color: #555;
  line-height: 1.5;
}
.details li {
  margin-bottom: 4px;
}
.back-btn {
  margin-top: auto;
}

/* Motion preference */
@media (prefers-reduced-motion: reduce) {
  .flip-card:hover .flip-card-inner,
  .flip-card.is-flipped .flip-card-inner {
    transform: none;
  }
  .flip-card-back {
    position: static;
    transform: none;
  }
  .flip-card-front {
    display: none;
  }
}

/* Responsive tweaks */
@media (max-width: 900px) {
  .collections-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .flip-card {
    width: 48vw;
    min-width: 160px;
    height: 320px;
  }
}

@media (max-width: 600px) {
  .collections-grid {
    grid-template-columns: 1fr;
    margin-bottom: 100px;
  }
  .flip-card {
    width: 90vw;
    min-width: 120px;
    height: 340px;
  }
  .product-img {
    height: 200px;
  }

  /* Disable flip on mobile */
  .flip-card:hover .flip-card-inner,
  .flip-card-inner {
    transform: none !important;
  }
  .flip-card-back {
    display: none;
  }
  .flip-card-front {
    display: block;
  }
}