/**
 * RefService References Plugin - Minimal Styles (No-Themed Mode)
 * This file contains only essential structural CSS
 * Theme should provide all visual styling
 */

/* CSS Variables for theme customization */
.refservice-references {
    --refservice-color: #000000;
    --refservice-color-text: #ffffff;
    --refservice-spacing: 2rem;
    --refservice-border-radius: 8px;
}

/* Basic structural styles only */
.refservice-references {
    display: grid;
    gap: var(--refservice-spacing, 2rem);
    margin: var(--refservice-spacing, 2rem) 0;
}

.refservice-layout-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

.refservice-layout-list {
    grid-template-columns: 1fr;
}

.refservice-reference-card {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.refservice-reference-image {
    position: relative;
    padding-top: 56.25%; /* 16:9 aspect ratio */
    overflow: hidden;
}

.refservice-reference-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.refservice-reference-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* List layout adjustments */
.refservice-layout-list .refservice-reference-card {
    flex-direction: row;
}

.refservice-layout-list .refservice-reference-image {
    flex: 0 0 300px;
    padding-top: 0;
    height: 200px;
}

.refservice-layout-list .refservice-reference-image img {
    position: relative;
    height: 100%;
}

/* Carousel Layout */
.refservice-carousel-wrapper {
    --refservice-carousel-columns: 3;
    --refservice-carousel-gap: 1.5rem;
    position: relative;
    margin: var(--refservice-spacing, 2rem) 0;
}

.refservice-carousel-track {
    display: flex;
    gap: var(--refservice-carousel-gap);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding: 0.5rem 0 1rem;
}

.refservice-carousel-track::-webkit-scrollbar {
    display: none;
}

.refservice-carousel-slide {
    flex: 0 0 calc((100% - (var(--refservice-carousel-columns) - 1) * var(--refservice-carousel-gap)) / var(--refservice-carousel-columns));
    scroll-snap-align: start;
    min-width: 0;
}

.refservice-carousel-nav {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 1.25rem;
}

.refservice-carousel-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid var(--refservice-color, #000);
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--refservice-color, #000);
    padding: 0;
    line-height: 1;
}

.refservice-carousel-btn svg {
    width: 18px;
    height: 18px;
}

.refservice-carousel-btn:disabled {
    opacity: 0.25;
    cursor: default;
}

/* Responsive */
@media (max-width: 1024px) {
    .refservice-carousel-wrapper {
        --refservice-carousel-columns: 2;
    }
    .refservice-carousel-prev { left: 4px; }
    .refservice-carousel-next { right: 4px; }
}

@media (max-width: 768px) {
    .refservice-layout-grid {
        grid-template-columns: 1fr;
    }
    
    .refservice-layout-list .refservice-reference-card {
        flex-direction: column;
    }
    
    .refservice-layout-list .refservice-reference-image {
        flex: none;
        height: auto;
        padding-top: 56.25%;
    }
}

@media (max-width: 640px) {
    .refservice-carousel-wrapper {
        --refservice-carousel-columns: 1;
    }
}