/**
 * Frontend Feed Styles for Unstoppable Social Life
 */

/* ==========================================================================
   Variables
   ========================================================================== */
:root {
    --usl-feed-gap: 15px;
    --usl-feed-radius: 8px;
    --usl-feed-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --usl-overlay-bg: rgba(0, 0, 0, 0.6);
    --usl-transition: 0.3s ease;
}

/* ==========================================================================
   Feed Container
   ========================================================================== */
.usl-feed {
    width: 100%;
    margin: 20px 0;
}

.usl-feed-grid {
    display: grid !important;
    gap: var(--usl-feed-gap) !important;
}

/* Column variations for grid layout */
.usl-layout-grid.usl-columns-1 .usl-feed-grid { grid-template-columns: 1fr !important; }
.usl-layout-grid.usl-columns-2 .usl-feed-grid { grid-template-columns: repeat(2, 1fr) !important; }
.usl-layout-grid.usl-columns-3 .usl-feed-grid { grid-template-columns: repeat(3, 1fr) !important; }
.usl-layout-grid.usl-columns-4 .usl-feed-grid { grid-template-columns: repeat(4, 1fr) !important; }
.usl-layout-grid.usl-columns-5 .usl-feed-grid { grid-template-columns: repeat(5, 1fr) !important; }
.usl-layout-grid.usl-columns-6 .usl-feed-grid { grid-template-columns: repeat(6, 1fr) !important; }

/* Generic column variations */
.usl-columns-1 .usl-feed-grid { grid-template-columns: 1fr; }
.usl-columns-2 .usl-feed-grid { grid-template-columns: repeat(2, 1fr); }
.usl-columns-3 .usl-feed-grid { grid-template-columns: repeat(3, 1fr); }
.usl-columns-4 .usl-feed-grid { grid-template-columns: repeat(4, 1fr); }
.usl-columns-5 .usl-feed-grid { grid-template-columns: repeat(5, 1fr); }
.usl-columns-6 .usl-feed-grid { grid-template-columns: repeat(6, 1fr); }

/* ==========================================================================
   Feed Item
   ========================================================================== */
.usl-feed-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--usl-feed-radius);
    background: #f5f5f5;
}

.usl-item-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.usl-item-media {
    position: relative;
    width: 100%;
    padding-bottom: 100%; /* 1:1 aspect ratio */
    overflow: hidden;
}

.usl-item-media img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--usl-transition);
}

/* Video/Carousel Icons */
.usl-video-icon,
.usl-carousel-icon {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 30px;
    height: 30px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
}

.usl-video-icon .dashicons,
.usl-carousel-icon .dashicons {
    font-size: 16px;
    width: 16px;
    height: 16px;
    color: #333;
}

/* Item Overlay */
.usl-item-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--usl-overlay-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--usl-transition);
}

.usl-platform-icon {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

/* Caption */
.usl-item-caption {
    padding: 12px;
    background: #fff;
}

.usl-item-caption p {
    margin: 0;
    font-size: 14px;
    line-height: 1.5;
    color: #333;
}

/* ==========================================================================
   Hover Effects
   ========================================================================== */
/* Fade */
.usl-hover-fade .usl-feed-item:hover .usl-item-overlay {
    opacity: 1;
}

/* Zoom */
.usl-hover-zoom .usl-feed-item:hover .usl-item-media img {
    transform: scale(1.1);
}

.usl-hover-zoom .usl-feed-item:hover .usl-item-overlay {
    opacity: 1;
}

/* Slide */
.usl-hover-slide .usl-item-overlay {
    transform: translateY(100%);
    opacity: 1;
}

.usl-hover-slide .usl-feed-item:hover .usl-item-overlay {
    transform: translateY(0);
}

/* ==========================================================================
   Layouts
   ========================================================================== */
/* Grid Layout - default square items */
.usl-layout-grid .usl-item-media {
    padding-bottom: 100%;
}

/* Masonry Layout */
.usl-layout-masonry .usl-feed-grid {
    display: block !important;
    column-count: 3 !important;
    column-gap: var(--usl-feed-gap) !important;
}

.usl-layout-masonry.usl-columns-1 .usl-feed-grid { column-count: 1 !important; }
.usl-layout-masonry.usl-columns-2 .usl-feed-grid { column-count: 2 !important; }
.usl-layout-masonry.usl-columns-3 .usl-feed-grid { column-count: 3 !important; }
.usl-layout-masonry.usl-columns-4 .usl-feed-grid { column-count: 4 !important; }
.usl-layout-masonry.usl-columns-5 .usl-feed-grid { column-count: 5 !important; }
.usl-layout-masonry.usl-columns-6 .usl-feed-grid { column-count: 6 !important; }

.usl-layout-masonry .usl-feed-item {
    break-inside: avoid !important;
    margin-bottom: var(--usl-feed-gap) !important;
    display: inline-block !important;
    width: 100% !important;
}

.usl-layout-masonry .usl-item-media {
    padding-bottom: 0 !important;
    position: relative !important;
}

.usl-layout-masonry .usl-item-media img {
    position: relative !important;
    height: auto !important;
    width: 100% !important;
}

/* Featured Layout */
.usl-layout-featured .usl-feed-grid {
    grid-template-columns: 2fr 1fr;
    grid-template-rows: auto auto;
}

.usl-layout-featured .usl-featured-main {
    grid-row: span 2;
}

.usl-layout-featured .usl-featured-main .usl-item-media {
    padding-bottom: 100%;
}

/* Carousel Layout */
.usl-layout-carousel .usl-feed-grid {
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: nowrap !important;
    overflow-x: auto !important;
    overflow-y: hidden !important;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
    gap: var(--usl-feed-gap);
}

.usl-layout-carousel .usl-feed-grid::-webkit-scrollbar {
    display: none;
}

.usl-layout-carousel .usl-feed-item {
    flex: 0 0 300px !important;
    min-width: 300px !important;
    max-width: 300px !important;
    scroll-snap-align: start;
}

.usl-layout-carousel.usl-columns-1 .usl-feed-item { flex: 0 0 100% !important; min-width: 100% !important; max-width: 100% !important; }
.usl-layout-carousel.usl-columns-2 .usl-feed-item { flex: 0 0 calc(50% - 10px) !important; min-width: calc(50% - 10px) !important; max-width: calc(50% - 10px) !important; }
.usl-layout-carousel.usl-columns-3 .usl-feed-item { flex: 0 0 calc(33.333% - 10px) !important; min-width: calc(33.333% - 10px) !important; max-width: calc(33.333% - 10px) !important; }
.usl-layout-carousel.usl-columns-4 .usl-feed-item { flex: 0 0 calc(25% - 12px) !important; min-width: calc(25% - 12px) !important; max-width: calc(25% - 12px) !important; }
.usl-layout-carousel.usl-columns-5 .usl-feed-item { flex: 0 0 calc(20% - 12px) !important; min-width: calc(20% - 12px) !important; max-width: calc(20% - 12px) !important; }
.usl-layout-carousel.usl-columns-6 .usl-feed-item { flex: 0 0 calc(16.666% - 12px) !important; min-width: calc(16.666% - 12px) !important; max-width: calc(16.666% - 12px) !important; }

.usl-carousel-wrapper {
    position: relative;
}

.usl-carousel-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    transition: all var(--usl-transition);
}

.usl-carousel-nav:hover {
    background: #fff;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.usl-carousel-prev {
    left: -20px;
}

.usl-carousel-next {
    right: -20px;
}

/* ==========================================================================
   Style Presets
   ========================================================================== */
/* Light Style */
.usl-style-light .usl-feed-item {
    background: #fff;
    box-shadow: var(--usl-feed-shadow);
}

.usl-style-light .usl-item-caption {
    background: #fff;
    border-top: 1px solid #eee;
}

/* Dark Style */
.usl-style-dark {
    background: #1a1a1a;
    padding: 20px;
    border-radius: var(--usl-feed-radius);
}

.usl-style-dark .usl-feed-item {
    background: #2a2a2a;
}

.usl-style-dark .usl-item-caption {
    background: #2a2a2a;
    color: #fff;
}

.usl-style-dark .usl-item-caption p {
    color: #ddd;
}

/* Minimal Style */
.usl-style-minimal .usl-feed-item {
    border-radius: 0;
    box-shadow: none;
}

.usl-style-minimal .usl-item-caption {
    padding: 10px 0;
    background: transparent;
}

/* ==========================================================================
   Load More
   ========================================================================== */
.usl-load-more-wrapper {
    text-align: center;
    margin-top: 30px;
}

.usl-load-more {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 30px;
    background: #333;
    color: #fff;
    border: none;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--usl-transition);
}

.usl-load-more:hover {
    background: #555;
    transform: translateY(-2px);
}

.usl-load-more.loading {
    opacity: 0.7;
    pointer-events: none;
}

.usl-load-more.loading::after {
    content: "";
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid #fff;
    border-top-color: transparent;
    border-radius: 50%;
    animation: usl-spin 0.8s linear infinite;
    margin-left: 10px;
}

@keyframes usl-spin {
    to {
        transform: rotate(360deg);
    }
}

/* ==========================================================================
   Messages
   ========================================================================== */
.usl-error,
.usl-no-posts {
    text-align: center;
    padding: 40px 20px;
    background: #f9f9f9;
    border-radius: var(--usl-feed-radius);
    color: #666;
}

.usl-error {
    background: #fff5f5;
    color: #c53030;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media screen and (max-width: 1024px) {
    .usl-columns-6 .usl-feed-grid,
    .usl-columns-5 .usl-feed-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .usl-layout-masonry.usl-columns-6 .usl-feed-grid,
    .usl-layout-masonry.usl-columns-5 .usl-feed-grid {
        column-count: 4;
    }
}

@media screen and (max-width: 768px) {
    .usl-columns-6 .usl-feed-grid,
    .usl-columns-5 .usl-feed-grid,
    .usl-columns-4 .usl-feed-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .usl-layout-masonry.usl-columns-6 .usl-feed-grid,
    .usl-layout-masonry.usl-columns-5 .usl-feed-grid,
    .usl-layout-masonry.usl-columns-4 .usl-feed-grid {
        column-count: 3;
    }

    .usl-layout-featured .usl-feed-grid {
        grid-template-columns: 1fr;
    }

    .usl-layout-featured .usl-featured-main {
        grid-row: auto;
    }

    .usl-layout-carousel .usl-feed-item {
        flex: 0 0 calc(50% - var(--usl-feed-gap));
    }

    .usl-carousel-prev {
        left: 10px;
    }

    .usl-carousel-next {
        right: 10px;
    }
}

@media screen and (max-width: 480px) {
    .usl-columns-6 .usl-feed-grid,
    .usl-columns-5 .usl-feed-grid,
    .usl-columns-4 .usl-feed-grid,
    .usl-columns-3 .usl-feed-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .usl-layout-masonry.usl-columns-6 .usl-feed-grid,
    .usl-layout-masonry.usl-columns-5 .usl-feed-grid,
    .usl-layout-masonry.usl-columns-4 .usl-feed-grid,
    .usl-layout-masonry.usl-columns-3 .usl-feed-grid {
        column-count: 2;
    }

    .usl-layout-carousel .usl-feed-item {
        flex: 0 0 calc(100% - var(--usl-feed-gap));
    }
}