:root {
  --primary: #e11d48;
  --secondary: #fff1f2;
  --accent: #7c3aed;
  --text: #4c0519;
  --bg: #fdf2f8;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  font-family: 'Plus Jakarta Sans', sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #ffffff;
  overflow-x: hidden;
  font-size: clamp(14px, 4vw, 16px);
  line-height: 1.6;
}

.header-title {
  font-size: clamp(20px, 4.5vw, 32px);
}

.card {
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 16px;
}

/* Wymogi dotyczące dostępności i ukrywania kontrolek bez rozbijania selektora rodzeństwa */
.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;
}

/* Galeria produktu */
.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;
}

#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 rgba(225, 29, 72, 0.4);
}

/* Przycisk CTA */
.cta-button {
  background-color: var(--primary);
  color: #ffffff;
  min-height: 48px;
  box-shadow: 0 10px 25px -5px rgba(225, 29, 72, 0.5), 0 8px 10px -6px rgba(225, 29, 72, 0.5);
}

.cta-button:hover {
  background-color: #be123c;
  color: #ffffff;
}

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