/* ================================================================
   BossFx Blog Engine — blog.css
   Reading progress, category filters, share bar, related posts
   ================================================================ */

/* Reading Progress Bar */
.bfx-reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: rgba(255, 255, 255, 0.06);
    z-index: 10010;
    pointer-events: none;
}
.bfx-reading-progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #10b981, #34d399);
    transition: width 0.15s ease-out;
    border-radius: 0 2px 2px 0;
}

/* Category Filter Tabs */
.bfx-blog-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin-bottom: 40px;
}
.bfx-filter-btn {
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 24px;
    color: #94a3b8;
    font-size: 0.82rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.25s ease;
    white-space: nowrap;
}
.bfx-filter-btn:hover {
    background: rgba(16, 185, 129, 0.08);
    border-color: rgba(16, 185, 129, 0.25);
    color: #10b981;
}
.bfx-filter-btn.active {
    background: rgba(16, 185, 129, 0.15);
    border-color: rgba(16, 185, 129, 0.4);
    color: #10b981;
    font-weight: 600;
}

/* Category Badge on Blog Cards */
.bfx-category-badge {
    display: inline-block;
    padding: 3px 10px;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: 12px;
    color: #10b981;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

/* Share Bar */
.bfx-share-bar {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 48px;
    padding: 20px 24px;
    background: rgba(16, 185, 129, 0.04);
    border: 1px solid rgba(16, 185, 129, 0.12);
    border-radius: 14px;
}
.bfx-share-label {
    color: #94a3b8;
    font-size: 0.82rem;
    font-weight: 600;
    white-space: nowrap;
}
.bfx-share-buttons {
    display: flex;
    gap: 8px;
}
.bfx-share-btn {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: #94a3b8;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
}
.bfx-share-btn:hover {
    background: rgba(16, 185, 129, 0.12);
    border-color: rgba(16, 185, 129, 0.3);
    color: #10b981;
    transform: translateY(-2px);
}

/* Related Posts */
.bfx-related-posts {
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.bfx-related-posts h3 {
    color: #fff;
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 20px;
}
.bfx-related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 16px;
}
.bfx-related-card {
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.25s ease;
}
.bfx-related-card:hover {
    background: rgba(16, 185, 129, 0.06);
    border-color: rgba(16, 185, 129, 0.2);
    transform: translateY(-2px);
}
.bfx-related-card h4 {
    color: #e2e8f0;
    font-size: 0.88rem;
    font-weight: 600;
    margin: 0 0 6px;
    line-height: 1.4;
}
.bfx-related-card p {
    color: #64748b;
    font-size: 0.78rem;
    margin: 0;
    line-height: 1.5;
}

/* Blog Search */
.bfx-blog-search {
    max-width: 400px;
    margin: 0 auto 24px;
    position: relative;
}
.bfx-blog-search input {
    width: 100%;
    padding: 12px 16px 12px 42px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    color: #e2e8f0;
    font-size: 0.88rem;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s;
}
.bfx-blog-search input:focus {
    border-color: rgba(16, 185, 129, 0.4);
}
.bfx-blog-search input::placeholder {
    color: #64748b;
}
.bfx-blog-search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: #64748b;
    pointer-events: none;
}

/* Mobile */
@media (max-width: 768px) {
    .bfx-share-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
        padding: 16px;
    }
    .bfx-blog-filters {
        gap: 6px;
    }
    .bfx-filter-btn {
        padding: 6px 14px;
        font-size: 0.76rem;
    }
    .bfx-related-grid {
        grid-template-columns: 1fr;
    }
}

@media print {
    .bfx-reading-progress,
    .bfx-share-bar,
    .bfx-blog-filters,
    .bfx-related-posts {
        display: none !important;
    }
}