/* Design System Variables */
:root {
  --primary: #0284c7;
  --secondary: #f0f9ff;
  --accent: #10b981;
  --text: #2d1b0e;
  --bg: #fdf8f4;
}

/* Base Reset & Typography with clamp() */
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: clamp(14px, 4vw, 16px);
  margin: 0;
  padding: 0;
}

h1 {
  font-size: clamp(20px, 5vw, 28px);
  font-weight: 800;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(18px, 4.5vw, 24px);
  font-weight: 700;
  letter-spacing: -0.02em;
}

section {
  padding: 48px 16px;
}

/* Cards & Buttons */
.card {
  background: #ffffff;
  border: none;
  border-radius: 16px;
  box-shadow: 0 4px 24px rgba(45, 27, 14, 0.05);
}

.btn {
  border-radius: 99px;
  font-weight: 600;
  min-height: 48px;
  transition: all 0.2s ease-in-out;
}

/* Hide inputs securely */
.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-only Logic */
.gallery-main {
  position: relative;
  width: 100%;
  padding-bottom: 100%; /* Strict 1:1 Aspect Ratio */
  overflow: hidden;
  border-radius: 16px;
}

.slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  z-index: 1;
  transition: opacity 0.4s ease-in-out;
}

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

/* Checked Slide States */
#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 Grid */
.thumbnails {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.thumbnails label {
  cursor: pointer;
  border: 2px solid transparent;
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 1 / 1;
  transition: all 0.2s ease-in-out;
  background: #ffffff;
  padding: 2px;
}

.thumbnails label img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
}

/* Checked Thumbnail Active Borders */
#img-1:checked ~ .thumbnails label[for="img-1"] { border-color: var(--primary); box-shadow: 0 0 0 2px rgba(2, 132, 199, 0.2); }
#img-2:checked ~ .thumbnails label[for="img-2"] { border-color: var(--primary); box-shadow: 0 0 0 2px rgba(2, 132, 199, 0.2); }
#img-3:checked ~ .thumbnails label[for="img-3"] { border-color: var(--primary); box-shadow: 0 0 0 2px rgba(2, 132, 199, 0.2); }
#img-4:checked ~ .thumbnails label[for="img-4"] { border-color: var(--primary); box-shadow: 0 0 0 2px rgba(2, 132, 199, 0.2); }

/* Prevent horizontal scroll globally */
html, body {
  max-width: 100%;
  overflow-x: hidden;
}