:root {
    --dbest-canvas: #ffffff;
    --dbest-panel: #f8fafc; 
    --dbest-vitality: #0284c7; 
    --dbest-vitality-hover: #0369a1;
    --dbest-ink: #0f172a;
    --dbest-sky-grad: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    --font-display: 'Oswald', sans-serif;
    --font-body: 'Lato', sans-serif;
    --radius-soft: 16px;
    --shadow-raised: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-inner-soft: inset 0 2px 4px 0 rgba(0, 0, 0, 0.02);
}

body {
    font-family: var(--font-body);
    background-color: var(--dbest-canvas);
    color: var(--dbest-ink);
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

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

/* Header - Preset B (Gradient Background) */
.top-brand-banner {
    background: var(--dbest-sky-grad);
    padding: 2.5rem 1rem;
    text-align: center;
    border-bottom: 1px solid #e2e8f0;
}

/* Gallery CSS Logic */
.gallery-core-module {
    width: 100%;
}

.visual-hub-input {
    display: none;
}

.stage-wrapper {
    position: relative;
}

.master-view-stage {
    position: relative;
    width: 100%;
    padding-top: 100%; /* 1:1 Aspect ratio */
    border-radius: var(--radius-soft);
    overflow: hidden;
    box-shadow: var(--shadow-raised);
    border: 1px solid #f1f5f9;
}

.master-slide-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 1rem;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
    z-index: 1;
}

/* Show slide based on checked radio */
#v-snap-1:checked ~ .gallery-layout-grid .stage-wrapper .slide-1,
#v-snap-2:checked ~ .gallery-layout-grid .stage-wrapper .slide-2,
#v-snap-3:checked ~ .gallery-layout-grid .stage-wrapper .slide-3,
#v-snap-4:checked ~ .gallery-layout-grid .stage-wrapper .slide-4,
#v-snap-5:checked ~ .gallery-layout-grid .stage-wrapper .slide-5 {
    opacity: 1;
    z-index: 10;
}

/* Thumbnails - Preset B (Side on desktop, flex-row on mobile) */
.thumb-nav-track {
    display: flex;
    flex-direction: row;
    gap: 0.75rem;
    overflow-x: auto;
    padding-bottom: 0.5rem;
}

@media (min-width: 1024px) {
    .gallery-layout-grid {
        display: flex;
        flex-direction: row-reverse;
        gap: 1.5rem;
    }
    .thumb-nav-track {
        flex-direction: column;
        width: 90px;
        flex-shrink: 0;
        overflow-x: visible;
        padding-bottom: 0;
    }
}

.thumb-trigger {
    width: 70px;
    height: 70px;
    flex-shrink: 0;
    border: 3px solid transparent;
    border-radius: 10px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

@media (min-width: 1024px) {
    .thumb-trigger {
        width: 100%;
        height: auto;
        aspect-ratio: 1;
    }
}

.thumb-trigger img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.thumb-trigger:hover {
    opacity: 0.8;
}

/* Highlight active thumbnail */
#v-snap-1:checked ~ .gallery-layout-grid .thumb-nav-track .t-1,
#v-snap-2:checked ~ .gallery-layout-grid .thumb-nav-track .t-2,
#v-snap-3:checked ~ .gallery-layout-grid .thumb-nav-track .t-3,
#v-snap-4:checked ~ .gallery-layout-grid .thumb-nav-track .t-4,
#v-snap-5:checked ~ .gallery-layout-grid .thumb-nav-track .t-5 {
    border-color: var(--dbest-vitality);
    opacity: 1;
}

/* CTA Button - Preset B (Rectangular with shadow) */
.action-trigger-node {
    display: inline-block;
    background-color: var(--dbest-vitality);
    color: #ffffff;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.125rem;
    letter-spacing: 0.5px;
    padding: 1.25rem 3rem;
    border-radius: var(--radius-soft);
    text-decoration: none;
    box-shadow: var(--shadow-raised);
    transition: all 0.2s ease-in-out;
}

.action-trigger-node:hover {
    background-color: var(--dbest-vitality-hover);
    transform: translateY(-2px);
    box-shadow: 0 15px 20px -5px rgba(0, 0, 0, 0.15), 0 8px 10px -4px rgba(0, 0, 0, 0.1);
}

/* Reviews - Preset B (Slightly darker bg + rounded-xl) */
.buyer-voice-card {
    background-color: var(--dbest-panel);
    border-radius: var(--radius-soft);
    padding: 1.75rem;
    box-shadow: var(--shadow-inner-soft);
    border: 1px solid #e2e8f0;
}