:root {
    --testojack-bg-base: #F7F7F7;
    --testojack-bg-alt: #EBEBEB;
    --testojack-surface-area: #FFFFFF;
    --testojack-accent-tone: #5B8C85;
    --testojack-accent-hover: #4A736D;
    --testojack-ink-dark: #2C3539;
    --testojack-ink-muted: #6B7280;
    --testojack-head-grad: linear-gradient(135deg, #E2ECEB 0%, #F7F7F7 100%);
    
    --font-display: 'Playfair Display', serif;
    --font-body: 'Lato', sans-serif;
}

body.tjack-canvas {
    font-family: var(--font-body);
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.tjack-main-headline,
.tjack-feedback-heading {
    font-family: var(--font-display);
    font-weight: 700;
}

/* Gallery - Side Thumbnails Logic (Preset B) */
.tjack-pic-viewer {
    display: flex;
    flex-direction: row-reverse;
    gap: 1rem;
    align-items: flex-start;
}

.tjack-stage {
    flex: 1;
    position: relative;
    aspect-ratio: 1 / 1;
    overflow: hidden;
}

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

.tjack-thumb-strip {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    width: 80px;
}

.tjack-thumb-label {
    display: block;
    width: 80px;
    height: 80px;
    border: 2px solid transparent;
    border-radius: 12px;
    overflow: hidden;
    transition: border-color 0.2s ease;
    background-color: var(--testojack-surface-area);
}

/* CSS Radio Logic */
#tjack-rad-1:checked ~ .tjack-pic-viewer .tjack-slide-1 { opacity: 1; z-index: 10; }
#tjack-rad-2:checked ~ .tjack-pic-viewer .tjack-slide-2 { opacity: 1; z-index: 10; }
#tjack-rad-3:checked ~ .tjack-pic-viewer .tjack-slide-3 { opacity: 1; z-index: 10; }
#tjack-rad-4:checked ~ .tjack-pic-viewer .tjack-slide-4 { opacity: 1; z-index: 10; }

#tjack-rad-1:checked ~ .tjack-pic-viewer .tjack-label-1 { border-color: var(--testojack-accent-tone); }
#tjack-rad-2:checked ~ .tjack-pic-viewer .tjack-label-2 { border-color: var(--testojack-accent-tone); }
#tjack-rad-3:checked ~ .tjack-pic-viewer .tjack-label-3 { border-color: var(--testojack-accent-tone); }
#tjack-rad-4:checked ~ .tjack-pic-viewer .tjack-label-4 { border-color: var(--testojack-accent-tone); }

/* Mobile Adaptation for Gallery */
@media (max-width: 767px) {
    .tjack-pic-viewer {
        flex-direction: column;
    }
    .tjack-thumb-strip {
        flex-direction: row;
        width: 100%;
        justify-content: center;
    }
    .tjack-thumb-label {
        width: 65px;
        height: 65px;
    }
}

/* CTA Hover */
.tjack-purchase-link:hover {
    background-color: var(--testojack-accent-hover) !important;
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05) !important;
}