:root {
  --refreshtears-bg: #f4f8fa;
  --refreshtears-surface: #ffffff;
  --refreshtears-tone: #0284c7;
  --refreshtears-tone-hover: #0369a1;
  --refreshtears-ink: #1e293b;
  --refreshtears-gradient: linear-gradient(135deg, #0284c7 0%, #0d9488 100%);
  --font-display: 'Merriweather', serif;
  --font-body: 'Poppins', sans-serif;
}

body {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

h1, h2, h3, h4, h5, h6 {
  text-transform: uppercase;
  font-family: var(--font-display);
}

.rt-radio-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.rt-slide-item {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.3s ease-in-out;
  pointer-events: none;
}

.rt-thumb-trigger {
  border-color: #e2e8f0;
  transition: all 0.2s ease-in-out;
}

/* Radio CSS Gallery Logic */
#rt-pic-1:checked ~ div .rt-slide-1,
#rt-pic-2:checked ~ div .rt-slide-2,
#rt-pic-3:checked ~ div .rt-slide-3,
#rt-pic-4:checked ~ div .rt-slide-4 {
  opacity: 1;
  pointer-events: auto;
}

#rt-pic-1:checked ~ div .rt-thumb-1,
#rt-pic-2:checked ~ div .rt-thumb-2,
#rt-pic-3:checked ~ div .rt-thumb-3,
#rt-pic-4:checked ~ div .rt-thumb-4 {
  border-color: var(--refreshtears-tone);
  box-shadow: 0 0 0 2px rgba(2, 132, 199, 0.2);
}

.rt-amazon-button:hover {
  background-color: var(--refreshtears-tone-hover) !important;
}