/* ============================================
   5iX Kennisbank Styles
   ============================================ */

.kb-hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.kb-hero h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    margin-bottom: 16px;
    text-align: center;
}

.kb-hero .lead {
    text-align: center;
    color: var(--gray-light);
    margin-bottom: 40px;
    font-size: 1.25rem;
}

.kb-search {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    gap: 12px;
}

.kb-search input {
    flex: 1;
    padding: 16px 20px;
    background: var(--dark-light);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius);
    color: var(--white);
    font-size: 1rem;
    transition: var(--transition);
}

.kb-search input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.kb-search button {
    padding: 16px 24px;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Categories */
.kb-categories {
    padding: 40px 0;
    background: var(--dark-light);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.category-filters {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

.category-btn {
    padding: 10px 20px;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    color: var(--gray-light);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.category-btn:hover {
    border-color: var(--primary);
    color: var(--white);
}

.category-btn.active {
    background: var(--gradient);
    border-color: transparent;
    color: var(--white);
}

/* Article Grid */
.kb-content {
    padding: 80px 0;
    background: var(--dark);
}

.kb-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 32px;
}

.kb-article {
    background: var(--dark-light);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius);
    padding: 32px;
    transition: var(--transition);
    position: relative;
    display: flex;
    flex-direction: column;
}

.kb-article:hover {
    transform: translateY(-4px);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: var(--shadow-lg);
}

.kb-article.featured {
    grid-column: span 2;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(14, 165, 233, 0.1) 100%);
    border-color: rgba(99, 102, 241, 0.3);
}

.kb-article.hidden {
    display: none;
}

.kb-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 4px 12px;
    background: var(--gradient);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 20px;
}

.kb-article-icon {
    width: 56px;
    height: 56px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.kb-article-icon svg {
    width: 28px;
    height: 28px;
    stroke: var(--primary-light);
}

.kb-article h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
    line-height: 1.4;
}

.kb-article h3 a {
    color: var(--white);
    transition: var(--transition);
}

.kb-article h3 a:hover {
    color: var(--primary-light);
}

.kb-article p {
    color: var(--gray-light);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 20px;
    flex: 1;
}

.kb-meta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    align-items: center;
    font-size: 0.875rem;
    color: var(--gray);
}

.kb-category {
    padding: 4px 10px;
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-light);
    border-radius: 4px;
    font-weight: 500;
}

.kb-reading-time::before {
    content: '📖 ';
}

.kb-date::before {
    content: '📅 ';
}

/* No Results */
.no-results {
    text-align: center;
    padding: 80px 20px;
    color: var(--gray-light);
}

.no-results.hidden {
    display: none;
}

.no-results svg {
    width: 64px;
    height: 64px;
    stroke: var(--gray);
    margin-bottom: 20px;
}

.no-results h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
    color: var(--white);
}

/* CTA Section */
.kb-cta {
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);
    padding: 80px 0;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.kb-cta .cta-content h2 {
    color: var(--white);
    font-size: 2rem;
    margin-bottom: 16px;
}

.kb-cta .cta-content p {
    color: var(--gray-light);
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Responsive */
@media (max-width: 768px) {
    .kb-article.featured {
        grid-column: span 1;
    }

    .kb-grid {
        grid-template-columns: 1fr;
    }

    .kb-search {
        flex-direction: column;
    }

    .kb-search button {
        width: 100%;
        justify-content: center;
    }
}