.vb-header {
    text-align: center;
    padding: 2rem;
    position: sticky; /* Make header sticky */
    top: 0;
    background-color: var(--background-color);
    z-index: 100;
}

.button-container {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem;
}

.aspect-ratio-controls {
    margin-top: 1.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.aspect-ratio-controls span {
    font-weight: 600;
    color: var(--text-color);
}

.aspect-ratio-controls label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.95rem;
}

.aspect-ratio-controls input[type="radio"] {
    accent-color: var(--primary-color);
    transform: scale(1.1);
}


#vision-board-grid {
    display: grid;
    /* grid-template-columns and grid-template-rows will be set by JS dynamically */
    padding: 0;
    width: 90%;
    max-width: 1200px;
    margin: 2rem auto;
    border-radius: 15px;
    box-shadow: var(--shadow);
    background-color: #fff;
    overflow: hidden; /* Ensure images are cropped within the grid */
}

/* Aspect Ratio specific styles for the grid container dimensions */
#vision-board-grid.aspect-ratio-16-9 {
    aspect-ratio: 16 / 9;
}

#vision-board-grid.aspect-ratio-9-16 {
    aspect-ratio: 9 / 16;
}

#vision-board-grid.aspect-ratio-4-3 {
    aspect-ratio: 4 / 3;
}

#vision-board-grid.aspect-ratio-3-4 {
    aspect-ratio: 3 / 4;
}

#vision-board-grid.aspect-ratio-1-1 {
    aspect-ratio: 1 / 1;
}

#vision-board-grid.aspect-ratio-auto {
    /* No fixed aspect ratio, let content define it, but we won't use this for strict fill */
    aspect-ratio: auto;
}

/* Styles for grid items */
#vision-board-grid .grid-item {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden; /* Ensure image content is cropped to cell */
}

#vision-board-grid .grid-item img {
    width: 100%;
    height: 100%;
    object-fit: cover; /* Crop to fill the grid cell */
    border-radius: 0; /* No border radius for flush tiles */
    display: block;
}