/* CSS Variables & Theme Setup */
:root {
  --primary: #e8d5b0;
  --secondary: #111111;
  --accent: #f97316;
  --text: #f8f8f8;
  --bg: #0a0a0a;
}

/* Global Styles */
body {
  background: var(--bg);
  color: var(--primary);
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(14px, 4vw, 16px);
  line-height: 1.6;
}

section {
  padding: 64px 16px;
}

.card {
  background: var(--secondary);
  border: 1px solid #333333;
  border-radius: 4px;
}

h1, h2 {
  font-family: 'Playfair Display', serif;
  font-weight: 300;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

h1 {
  font-size: clamp(22px, 5vw, 36px);
}

h2 {
  font-size: clamp(18px, 4vw, 28px);
}

.btn {
  border-radius: 0;
  border: 1px solid var(--primary);
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Screen Reader Only utility for CSS-only Gallery */
.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;
}

/* Gallery CSS Styling */
.gallery-main {
  position: relative;
  width: 100%;
  padding-bottom: 100%; /* Forces 1:1 Aspect Ratio without JS */
  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;
}

/* Radio Control Logic for Slide Display */
#img-1:checked ~ .gallery-main .slide-1 { opacity: 1; z-index: 10; }
#img-2:checked ~ .gallery-main .slide-2 { opacity: 1; z-index: 10; }
#img-3:checked ~ .gallery-main .slide-3 { opacity: 1; z-index: 10; }
#img-4:checked ~ .gallery-main .slide-4 { opacity: 1; z-index: 10; }

/* Thumbnail Active State Highlight */
#img-1:checked ~ .thumbnails label[for="img-1"] { border-color: var(--primary); border-width: 2px; }
#img-2:checked ~ .thumbnails label[for="img-2"] { border-color: var(--primary); border-width: 2px; }
#img-3:checked ~ .thumbnails label[for="img-3"] { border-color: var(--primary); border-width: 2px; }
#img-4:checked ~ .thumbnails label[for="img-4"] { border-color: var(--primary); border-width: 2px; }

/* Responsive Adjustments */
@media (min-width: 768px) {
  .gallery-main {
    padding-bottom: 100%;
  }
}