/* CSS Variables & Design System */
:root {
  --primary: #c2410c;
  --secondary: #fff7ed;
  --accent: #0284c7;
  --text: #431407;
  --bg: #fef9f5;
}

/* Base Styles */
body {
  font-family: 'Inter', sans-serif;
  background: #fff;
  color: #111;
  font-size: clamp(14px, 4vw, 16px);
}

section {
  padding: 64px 16px;
}

.card {
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  box-shadow: none;
}

.btn {
  border-radius: 6px;
  font-weight: 600;
  min-height: 44px;
}

h1, h2 {
  font-weight: 700;
}

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

/* Prevent Horizontal Scroll */
html, body {
  max-width: 100%;
  overflow-x: hidden;
}

/* Accessibility Utility */
.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;
}

/* Responsive Gallery Styling (Mobile-First) */
.gallery-container {
  width: 100%;
  max-width: 550px;
  margin: 0 auto;
}

.gallery-main {
  position: relative;
  width: 100%;
  padding-bottom: 100%; /* Strict 1:1 Aspect Ratio */
  overflow: hidden;
  background-color: #f9fafb;
}

.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;
}

/* Thumbnails Grid */
.thumbnails {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

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

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

/* CSS Only Gallery Functionality */
#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; }

#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); }

/* CTA Button Styling */
.btn-cta {
  background-color: var(--primary);
  color: #ffffff !important;
  padding: 16px 36px;
  font-size: 1.125rem;
  font-weight: 700;
  border-radius: 6px;
  display: inline-block;
  text-align: center;
  transition: background-color 0.2s ease-in-out, transform 0.1s ease-in-out;
  box-shadow: 0 4px 6px -1px rgba(194, 65, 12, 0.2), 0 2px 4px -1px rgba(194, 65, 12, 0.1);
  min-height: 48px;
}

.btn-cta:hover {
  background-color: #a8360b;
  transform: translateY(-1px);
}

.btn-cta:active {
  transform: translateY(1px);
}