:root {
  --primary: #9f1239;
  --secondary: #fce7f3;
  --accent: #d97706;
  --text: #500724;
  --bg: #fdf2f8;
}

body {
  background: #f5f0e8;
  color: #2d2416;
  font-size: clamp(14px, 4vw, 16px);
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

h1, h2 {
  font-weight: 700;
}

h1 {
  font-size: clamp(20px, 4.5vw, 28px);
}

h2 {
  font-size: clamp(18px, 4vw, 24px);
}

.card {
  background: #fff;
  border: none;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(76, 61, 35, 0.08);
}

.btn {
  border-radius: 8px;
  font-weight: 600;
  min-height: 44px;
}

img {
  max-width: 100%;
  height: auto;
}

/* Accessibility hidden element (strictly preserves CSS sibling selectors) */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* CSS-Only Product Gallery */
.gallery-container {
  position: relative;
  width: 100%;
}

.gallery-main {
  position: relative;
  width: 100%;
  padding-bottom: 100%;
  overflow: hidden;
}

.slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  z-index: 1;
  transition: opacity 0.3s ease-in-out;
}

.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

#img-1:checked ~ .gallery-main .slide-1,
#img-2:checked ~ .gallery-main .slide-2,
#img-3:checked ~ .gallery-main .slide-3,
#img-4:checked ~ .gallery-main .slide-4 {
  opacity: 1;
  z-index: 10;
}

#img-1:checked ~ .thumbnails label[for="img-1"],
#img-2:checked ~ .thumbnails label[for="img-2"],
#img-3:checked ~ .thumbnails label[for="img-3"],
#img-4:checked ~ .thumbnails label[for="img-4"] {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--secondary);
}