:root {
  /* Theme: NATURE (Earth tones, green accent) */
  --herb-essence-bg: #F4F6F0; 
  --herb-pure-surface: #FFFFFF;
  --herb-vital-accent: #5E8B42; /* Nature green */
  --herb-vital-hover: #4A7033;
  --herb-dark-fiber: #2D3A25; /* Dark greenish-brown text */
  --herb-depth-shadow: 0 15px 35px rgba(45, 58, 37, 0.15); /* Deep shadow */
  
  /* Visual parameters */
  --font-heading: 'Playfair Display', serif;
  --font-body: 'Lato', sans-serif;
  --herb-form-radius: 12px; /* Soft radius for inner elements */
  --herb-radius-pill: 999px; /* Pill for CTA as requested by preset A */
}

/* Base resets & typography */
body {
    line-height: 1.6;
}

h1, h2, h3 {
    color: var(--herb-dark-fiber);
}

/* Gallery CSS Logic (Radio based) */
.main-display-arena {
    background-color: #fafafa;
    border: 1px solid rgba(0,0,0,0.03);
    padding-bottom: 100%;
}

.nature-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease-in-out, visibility 0.4s;
    z-index: 1;
}

/* Map radio buttons to images */
#shot-1:checked ~ .main-display-arena .slide-1,
#shot-2:checked ~ .main-display-arena .slide-2,
#shot-3:checked ~ .main-display-arena .slide-3,
#shot-4:checked ~ .main-display-arena .slide-4 {
    opacity: 1;
    visibility: visible;
    z-index: 10;
}

/* Thumbnail highlighting */
.thumb-selector-strip label {
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

#shot-1:checked ~ .thumb-selector-strip label[for="shot-1"],
#shot-2:checked ~ .thumb-selector-strip label[for="shot-2"],
#shot-3:checked ~ .thumb-selector-strip label[for="shot-3"],
#shot-4:checked ~ .thumb-selector-strip label[for="shot-4"] {
    border-color: var(--herb-vital-accent);
    opacity: 1;
    box-shadow: 0 4px 10px rgba(94, 139, 66, 0.3);
}

/* CTA Interactions */
.purchase-action-trigger {
    text-decoration: none;
    transform: translateY(0);
}

.purchase-action-trigger:hover {
    background-color: var(--herb-vital-hover) !important; /* Force override inline for hover state */
    transform: translateY(-3px);
    box-shadow: 0 20px 40px rgba(45, 58, 37, 0.25) !important;
}

/* Responsive tweaks */
@media (max-width: 768px) {
    .botanical-top-bar span {
        font-size: 1.1rem;
    }
    
    .purchase-action-trigger {
        width: 100%;
        max-width: 350px;
    }
}