/* Design System: LUXURY-DARK */
:root {
  --primary: #e8d5b0;
  --secondary: #111111;
  --accent: #10b981;
  --text: #e8d5b0;
  --bg: #0a0a0a;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(14px, 4vw, 16px);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

section {
  padding: 48px 16px;
}

.card {
  background: #111111;
  border: 1px solid #2a2a2a;
  border-radius: 4px;
}

h1, h2, h3 {
  font-family: 'Cinzel', serif;
  font-weight: 300;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

h1 {
  font-size: clamp(20px, 5vw, 32px);
}

.btn {
  border-radius: 0;
  border: 1px solid var(--primary);
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  min-height: 44px;
}

/* Gallery Rules */
.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-main {
  position: relative;
  width: 100%;
  padding-bottom: 100%; /* Strict aspect ratio fallback */
  overflow: hidden;
}

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

/* Gallery Active State Selectors */
#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 Border States */
#img-1:checked ~ .thumbnails label[for="img-1"] {
  border-color: var(--primary);
  outline: 1px solid var(--primary);
}
#img-2:checked ~ .thumbnails label[for="img-2"] {
  border-color: var(--primary);
  outline: 1px solid var(--primary);
}
#img-3:checked ~ .thumbnails label[for="img-3"] {
  border-color: var(--primary);
  outline: 1px solid var(--primary);
}
#img-4:checked ~ .thumbnails label[for="img-4"] {
  border-color: var(--primary);
  outline: 1px solid var(--primary);
}