/* CSS Variables for Corporate-Trust Theme */
:root {
  --primary: #ca8a04;
  --secondary: #fef9c3;
  --accent: #059669;
  --text: #1e293b;
  --bg: #f8fafc;
}

/* Base resets and overrides */
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', sans-serif;
}

section {
  padding: 48px 16px;
}

@media (min-width: 768px) {
  section {
    padding: 64px 16px;
  }
}

.card {
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.btn {
  border-radius: 6px;
  font-weight: 600;
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease-in-out;
}

header {
  border-bottom: 3px solid var(--primary);
}

/* Typography Fluid Sizing */
h1 {
  font-size: clamp(22px, 5vw, 36px);
}

h2 {
  font-size: clamp(20px, 4.5vw, 28px);
}

p, span, li, h4 {
  font-size: clamp(14px, 4vw, 16px);
}

/* Strict SR-Only styling for radio inputs */
.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 Implementation */
.gallery-main {
  position: relative;
  width: 100%;
  padding-bottom: 100%; /* Strict height constraint */
  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;
}

/* Active Slide States based on Checked Inputs */
#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;
}

/* Thumbnails layout and active states */
.thumbnails {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.thumbnails label {
  flex: 1;
  cursor: pointer;
  border: 2px solid transparent;
  border-radius: 6px;
  overflow: hidden;
  transition: border-color 0.2s ease-in-out;
  aspect-ratio: 1 / 1;
}

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

#img-1:checked ~ .thumbnails label[for="img-1"] {
  border-color: var(--primary);
}

#img-2:checked ~ .thumbnails label[for="img-2"] {
  border-color: var(--primary);
}

#img-3:checked ~ .thumbnails label[for="img-3"] {
  border-color: var(--primary);
}

#img-4:checked ~ .thumbnails label[for="img-4"] {
  border-color: var(--primary);
}