/**
 * Betformatics Posts Feed Styles
 *
 * Dependencies: betformatics-variables (loaded via PHP)
 *
 * @package Betformatics
 */

/* ==========================================================================
   HEADING
   ========================================================================== */
.bf-posts-feed-heading {
    font-size: var(--bf-font-size-2xl);
    font-weight: var(--bf-font-weight-bold);
    color: var(--bf-gray-800);
    margin: 0 0 var(--bf-spacing-lg) 0;
    padding: 0;
}

/* ==========================================================================
   GRID LAYOUT - CARD VIEW (Vertical)
   ========================================================================== */
.bf-posts-feed {
    display: grid;
    gap: var(--bf-gap-xl);
    width: 100%;
}

/* Column variations - Card layout */
.bf-posts-feed-card.bf-posts-feed-cols-1 {
    grid-template-columns: 1fr;
}

.bf-posts-feed-card.bf-posts-feed-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.bf-posts-feed-card.bf-posts-feed-cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

.bf-posts-feed-card.bf-posts-feed-cols-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* ==========================================================================
   LIST LAYOUT (Horizontal)
   ========================================================================== */
.bf-posts-feed-list {
    display: flex;
    flex-direction: column;
    gap: var(--bf-gap-base);
}

.bf-posts-feed-list .bf-posts-feed-item {
    max-width: 100%;
}

.bf-posts-feed-list .bf-posts-feed-link {
    flex-direction: row;
    align-items: stretch;
}

.bf-posts-feed-list .bf-posts-feed-image {
    flex: 0 0 200px;
    width: 200px;
    aspect-ratio: auto;
    min-height: 130px;
}

.bf-posts-feed-list .bf-posts-feed-content {
    padding: var(--bf-spacing-base) var(--bf-spacing-lg);
    justify-content: center;
}

/* ==========================================================================
   FEED ITEM - CARD
   ========================================================================== */
.bf-posts-feed-item {
    display: flex;
    flex-direction: column;
    background: var(--bf-white);
    border-radius: var(--bf-radius-lg);
    overflow: hidden;
    box-shadow: var(--bf-shadow-card);
    border: 1px solid var(--bf-border);
    transition: transform var(--bf-transition-base), box-shadow var(--bf-transition-base);
}

.bf-posts-feed-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--bf-shadow-card-hover);
}

.bf-posts-feed-link {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    height: 100%;
}

.bf-posts-feed-link:hover {
    text-decoration: none;
    color: inherit;
}

/* ==========================================================================
   IMAGE
   ========================================================================== */
.bf-posts-feed-image {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--bf-gray-100);
}

.bf-posts-feed-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform var(--bf-transition-slow);
}

.bf-posts-feed-item:hover .bf-posts-feed-image img {
    transform: scale(1.05);
}

/* Placeholder for posts without image */
.bf-posts-feed-image-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--bf-gray-200) 0%, var(--bf-gray-300) 100%);
}

.bf-posts-feed-image-placeholder svg {
    width: 48px;
    height: 48px;
    color: var(--bf-gray-400);
}

/* ==========================================================================
   CONTENT
   ========================================================================== */
.bf-posts-feed-content {
    display: flex;
    flex-direction: column;
    padding: var(--bf-spacing-base);
    flex: 1;
}

/* Category badge */
.bf-posts-feed-category {
    display: inline-block;
    align-self: flex-start;
    font-size: 11px;
    font-weight: var(--bf-font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--bf-primary);
    background: #e0e7ff;
    padding: var(--bf-spacing-xs) 10px;
    border-radius: var(--bf-radius-sm);
    margin-bottom: 10px;
}

/* Title */
.bf-posts-feed-title {
    font-size: 17px;
    font-weight: var(--bf-font-weight-semibold);
    line-height: var(--bf-line-height-normal);
    color: var(--bf-gray-800);
    margin: 0 0 var(--bf-spacing-sm) 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--bf-transition-base);
}

.bf-posts-feed-item:hover .bf-posts-feed-title {
    color: var(--bf-primary);
}

/* Excerpt */
.bf-posts-feed-excerpt {
    font-size: var(--bf-font-size-base);
    line-height: 1.5;
    color: var(--bf-text-muted);
    margin: 0 0 var(--bf-spacing-md) 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Date */
.bf-posts-feed-date {
    font-size: var(--bf-font-size-sm);
    color: var(--bf-gray-400);
    margin-top: auto;
}

/* ==========================================================================
   EMPTY STATE
   ========================================================================== */
.bf-posts-feed-empty {
    padding: 40px var(--bf-spacing-lg);
    text-align: center;
    color: var(--bf-text-muted);
    font-size: var(--bf-font-size-base);
    background: var(--bf-gray-50);
    border-radius: var(--bf-radius-lg);
    border: 1px solid var(--bf-border);
}

/* ==========================================================================
   RESPONSIVE - Tablet
   ========================================================================== */
@media (max-width: 1024px) {
    .bf-posts-feed-card.bf-posts-feed-cols-4 {
        grid-template-columns: repeat(3, 1fr);
    }

    .bf-posts-feed-list .bf-posts-feed-image {
        flex: 0 0 180px;
        width: 180px;
    }
}

@media (max-width: 768px) {
    .bf-posts-feed {
        gap: var(--bf-gap-base);
    }

    .bf-posts-feed-card.bf-posts-feed-cols-3,
    .bf-posts-feed-card.bf-posts-feed-cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .bf-posts-feed-heading {
        font-size: var(--bf-font-size-xl);
        margin-bottom: var(--bf-spacing-base);
    }

    .bf-posts-feed-list .bf-posts-feed-image {
        flex: 0 0 140px;
        width: 140px;
        min-height: 100px;
    }

    .bf-posts-feed-list .bf-posts-feed-content {
        padding: var(--bf-spacing-md) var(--bf-spacing-base);
    }

    .bf-posts-feed-title {
        font-size: 15px;
    }
}

/* ==========================================================================
   RESPONSIVE - Mobile
   ========================================================================== */
@media (max-width: 640px) {
    .bf-posts-feed-card.bf-posts-feed-cols-2,
    .bf-posts-feed-card.bf-posts-feed-cols-3,
    .bf-posts-feed-card.bf-posts-feed-cols-4 {
        grid-template-columns: 1fr;
    }

    .bf-posts-feed-content {
        padding: 14px;
    }

    .bf-posts-feed-category {
        font-size: var(--bf-font-size-xs);
        padding: 3px 8px;
    }

    .bf-posts-feed-title {
        font-size: var(--bf-font-size-md);
        -webkit-line-clamp: 3;
    }

    .bf-posts-feed-excerpt {
        font-size: 13px;
        -webkit-line-clamp: 2;
    }

    /* List layout becomes card on mobile */
    .bf-posts-feed-list .bf-posts-feed-link {
        flex-direction: column;
    }

    .bf-posts-feed-list .bf-posts-feed-image {
        flex: none;
        width: 100%;
        aspect-ratio: 16 / 9;
        min-height: auto;
    }

    .bf-posts-feed-list .bf-posts-feed-content {
        padding: 14px;
    }
}

/* ==========================================================================
   ACCESSIBILITY
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
    .bf-posts-feed-item,
    .bf-posts-feed-image img {
        transition: none;
    }

    .bf-posts-feed-item:hover {
        transform: none;
    }

    .bf-posts-feed-item:hover .bf-posts-feed-image img {
        transform: none;
    }
}

.bf-posts-feed-link:focus {
    outline: none;
}

.bf-posts-feed-link:focus-visible {
    outline: 2px solid var(--bf-primary);
    outline-offset: 2px;
    border-radius: var(--bf-radius-lg);
}

/* ==========================================================================
   LOAD MORE BUTTON
   ========================================================================== */
.bf-posts-feed-wrapper {
    width: 100%;
}

.bf-posts-feed-load-more-wrapper {
    display: flex;
    justify-content: center;
    margin-top: var(--bf-spacing-2xl);
}

.bf-posts-feed-load-more {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-width: 180px;
    padding: 14px 28px;
    font-size: 15px;
    font-weight: var(--bf-font-weight-semibold);
    color: var(--bf-white);
    background: var(--bf-primary);
    border: none;
    border-radius: var(--bf-radius-base);
    cursor: pointer;
    transition: background-color var(--bf-transition-base), transform var(--bf-transition-base), box-shadow var(--bf-transition-base);
}

.bf-posts-feed-load-more:hover {
    background: var(--bf-primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--bf-shadow-primary);
}

.bf-posts-feed-load-more:active {
    transform: translateY(0);
    box-shadow: none;
}

.bf-posts-feed-load-more:disabled {
    background: var(--bf-gray-400);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.bf-posts-feed-load-more:focus {
    outline: none;
}

.bf-posts-feed-load-more:focus-visible {
    outline: 2px solid var(--bf-primary);
    outline-offset: 2px;
}

/* Spinner */
.bf-load-more-spinner {
    display: none;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--bf-white);
    border-radius: var(--bf-radius-full);
    animation: bf-spin 0.8s linear infinite;
}

.bf-posts-feed-load-more.loading .bf-load-more-spinner {
    display: block;
}

.bf-posts-feed-load-more.loading .bf-load-more-text {
    opacity: 0.7;
}

@keyframes bf-spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

/* Responsive */
@media (max-width: 640px) {
    .bf-posts-feed-load-more-wrapper {
        margin-top: var(--bf-spacing-xl);
    }

    .bf-posts-feed-load-more {
        width: 100%;
        padding: var(--bf-spacing-md) var(--bf-spacing-xl);
        font-size: var(--bf-font-size-base);
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .bf-posts-feed-load-more {
        transition: none;
    }

    .bf-posts-feed-load-more:hover {
        transform: none;
    }

    .bf-load-more-spinner {
        animation: none;
    }
}