:root {
  --tree-bg: #f8fafc;
  --tree-surface: #ffffff;
  --tree-tone: #0f766e;
  --tree-tone-hover: #0d5f58;
  --tree-ink: #1e293b;
  --tree-gradient: linear-gradient(135deg, #0f766e 0%, #14b8a6 100%);
  --tree-radius: 3px;
  --font-display: 'Montserrat', sans-serif;
  --font-body: 'Roboto', sans-serif;
}

/* Base resets & typography */
body {
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Preset D - Side Thumbnails Without Frame / Border */
.tree-thumb-click {
  opacity: 0.6;
  border: none !important;
  outline: none !important;
  background: transparent;
}

.tree-thumb-click:hover {
  opacity: 0.9;
}

/* Big Slider Images Visibility Logic (No JavaScript) */
.tree-slide-item {
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease-in-out;
}

/* Gallery Radio Selectors */
#tree-shot-1:checked ~ div .tree-view-target-1 {
  opacity: 1;
  visibility: visible;
  z-index: 10;
}

#tree-shot-2:checked ~ div .tree-view-target-2 {
  opacity: 1;
  visibility: visible;
  z-index: 10;
}

#tree-shot-3:checked ~ div .tree-view-target-3 {
  opacity: 1;
  visibility: visible;
  z-index: 10;
}

#tree-shot-4:checked ~ div .tree-view-target-4 {
  opacity: 1;
  visibility: visible;
  z-index: 10;
}

/* Highlight Active Side Thumbnail without border */
#tree-shot-1:checked ~ div .tree-thumb-lbl-1,
#tree-shot-2:checked ~ div .tree-thumb-lbl-2,
#tree-shot-3:checked ~ div .tree-thumb-lbl-3,
#tree-shot-4:checked ~ div .tree-thumb-lbl-4 {
  opacity: 1;
  transform: scale(1.02);
}

/* Preset D: CTA Button - Wide without shadow, hover underline */
.tree-call-btn {
  box-shadow: none !important;
  text-decoration: none;
}

.tree-call-btn:hover {
  text-decoration: underline !important;
  background-color: var(--tree-tone-hover) !important;
}

/* Preset D: Reviews - border-bottom + box-shadow */
.tree-opinion-post {
  border-bottom: 2px solid #cbd5e1;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
}