:root {
    /* Theme NATURE: Soft off-white backgrounds, sage green accents, charcoal text */
    --boswellia-bg: #F9F8F6;
    --boswellia-surface: #FFFFFF;
    --boswellia-tone: #5a7b5e;
    --boswellia-tone-hover: #4a664e;
    --boswellia-ink: #2c362d;
    --boswellia-light-ink: #556658;
    --boswellia-gradient: linear-gradient(135deg, #5a7b5e 0%, #7d9e81 100%);
    
    /* Typography */
    --font-display: 'Playfair Display', serif;
    --font-body: 'Lato', sans-serif;
}

/* Global Reset & Base */
body.layout-body-wrapper {
    margin: 0;
    padding: 0;
    background-color: var(--boswellia-bg);
    color: var(--boswellia-ink);
    font-family: var(--font-body);
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
}

h1, h2, h3, .site-branding, .main-display-heading, .feedback-heading {
    font-family: var(--font-display);
    font-weight: 700;
}

.vitality-container {
    width: 100%;
    padding-left: 1rem;
    padding-right: 1rem;
    margin-left: auto;
    margin-right: auto;
}

.xl-container {
    max-width: 1120px;
}

/* Design Preset A: Header with bottom accent line */
.top-nav-bar-wrapper {
    background-color: var(--boswellia-surface);
    border-bottom: 4px solid var(--boswellia-tone);
    padding: 1.25rem 0;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.03);
}

.site-branding {
    font-size: 1.1rem;
    display: inline-block;
}

/* Product Info Styles */
.main-display-heading {
    font-size: 1.75rem;
    line-height: 1.3;
    margin-bottom: 0.5rem;
}

.sub-heading-info {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
    font-family: var(--font-body);
    font-weight: 600;
}

.info-paragraph-group {
    background-color: var(--boswellia-surface);
    padding: 1.25rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.04);
}

/* Gallery Styles (No JS) */
.nature-joint-radio {
    display: none;
}

.nature-joint-slide {
    display: none;
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: 16px; /* Soft border-radius */
    box-shadow: 0 5px 20px rgba(0,0,0,0.08); /* Raised shadow */
    background-color: var(--boswellia-surface);
}

/* Logic for showing active slide */
#pic1:checked ~ .nature-joint-view .slide-1,
#pic2:checked ~ .nature-joint-view .slide-2,
#pic3:checked ~ .nature-joint-view .slide-3,
#pic4:checked ~ .nature-joint-view .slide-4 {
    display: block;
    animation: fadeInSlide 0.4s ease-in-out;
}

@keyframes fadeInSlide {
    from { opacity: 0; transform: scale(0.98); }
    to { opacity: 1; transform: scale(1); }
}

/* Thumbnails (Preset A: Below main image) */
.nature-joint-thumb {
    width: 70px;
    height: 70px;
    object-fit: cover;
    border-radius: 12px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.3s ease;
    background-color: var(--boswellia-surface);
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.nature-joint-thumb:hover {
    transform: translateY(-2px);
}

/* Logic for active thumbnail border */
#pic1:checked ~ .nature-joint-nav .thumb-1,
#pic2:checked ~ .nature-joint-nav .thumb-2,
#pic3:checked ~ .nature-joint-nav .thumb-3,
#pic4:checked ~ .nature-joint-nav .thumb-4 {
    border-color: var(--boswellia-tone);
    box-shadow: 0 4px 12px rgba(90, 123, 94, 0.3);
}

/* CTA Button (Preset A: Pill shape + hover shadow) */
.action-trigger-link {
    display: inline-block;
    background: var(--boswellia-gradient);
    color: #ffffff;
    font-size: 1.2rem;
    font-weight: 600;
    text-decoration: none;
    padding: 1.2rem 3rem;
    border-radius: 999px; /* Pill */
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.action-trigger-link:hover {
    background: var(--boswellia-tone-hover);
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(90, 123, 94, 0.4);
}

/* Reviews (Preset A: Left colored border) */
.feedback-heading {
    font-size: 2rem;
}

.buyer-voice-box {
    background-color: var(--boswellia-surface);
    padding: 1.5rem;
    border-radius: 12px;
    border-left: 4px solid var(--boswellia-tone);
    box-shadow: 0 4px 15px rgba(0,0,0,0.04);
}

.user-avatar-pic {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    background-color: #eee;
}

/* Media Queries for better layout on big screens */
@media (min-width: 768px) {
    .main-display-heading {
        font-size: 2.25rem;
    }
    .action-trigger-link {
        font-size: 1.3rem;
        padding: 1.25rem 4rem;
    }
}