/* NASR Knowledge Hub - Homepage Section Redesign */

:root {
    --primary-red: #D62828;
    --fresh-green: #76B893;
    --dark-navy: #1a2332;
    --slate-gray: #64748b;
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --border-color: #E2E8F0;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
}

/* ========== Knowledge Hub Section ========== */
.nasr-knowledge-section {
    background: linear-gradient(180deg, #FAFBFC 0%, #F0F4F8 100%);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.nasr-knowledge-section::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-red), var(--fresh-green), var(--primary-red));
    background-size: 200% 100%;
    animation: gradientSlide 4s ease infinite;
}

@keyframes gradientSlide {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* Section Title */
.knowledge-section-title {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--dark-navy);
    text-align: center;
    margin-bottom: 12px;
    line-height: 1.2;
}

.knowledge-section-title span {
    color: var(--primary-red);
}

.knowledge-section-subtitle {
    font-family: var(--font-body);
    font-size: 1.05rem;
    color: var(--slate-gray);
    text-align: center;
    max-width: 620px;
    margin: 0 auto 48px;
    line-height: 1.7;
}

/* Featured Card */
.knowledge-featured-card {
    background: #ffffff;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    display: flex;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    margin-bottom: 32px;
}

.knowledge-featured-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.knowledge-featured-image {
    flex: 0 0 45%;
    position: relative;
    min-height: 380px;
    overflow: hidden;
}

.knowledge-featured-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.knowledge-featured-card:hover .knowledge-featured-image img {
    transform: scale(1.05);
}

.knowledge-featured-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    background: var(--fresh-green);
    color: #ffffff;
    padding: 8px 18px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    font-family: var(--font-heading);
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(118, 184, 147, 0.4);
}

.knowledge-featured-content {
    flex: 1;
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.knowledge-featured-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
}

.knowledge-featured-meta i {
    color: var(--primary-red);
    font-size: 14px;
}

.knowledge-featured-meta span {
    color: var(--slate-gray);
    font-size: 0.9rem;
    font-family: var(--font-body);
}

.knowledge-featured-category {
    display: inline-block;
    background: #E8F5E9;
    color: #2E7D32;
    font-size: 12px;
    font-weight: 600;
    padding: 5px 14px;
    border-radius: 6px;
    font-family: var(--font-heading);
    margin-bottom: 16px;
    width: fit-content;
    letter-spacing: 0.3px;
}

.knowledge-featured-title {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--dark-navy);
    margin: 0 0 16px 0;
    line-height: 1.25;
}

.knowledge-featured-excerpt {
    color: var(--slate-gray);
    font-size: 1rem;
    line-height: 1.7;
    margin: 0 0 28px 0;
    font-family: var(--font-body);
}

.knowledge-read-more-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--primary-red);
    color: #ffffff;
    padding: 14px 32px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    font-family: var(--font-heading);
    width: fit-content;
    transition: all 0.3s ease;
    box-shadow: 0 4px 14px rgba(214, 40, 40, 0.3);
}

.knowledge-read-more-btn:hover {
    background: #b71c1c;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(214, 40, 40, 0.4);
    color: #ffffff;
}

.knowledge-read-more-btn i {
    transition: transform 0.3s ease;
}

.knowledge-read-more-btn:hover i {
    transform: translateX(4px);
}

/* Sub Blog Cards */
.knowledge-sub-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.knowledge-sub-card {
    background: #ffffff;
    border-radius: 14px;
    border: 1px solid var(--border-color);
    padding: 20px;
    display: flex;
    gap: 18px;
    align-items: center;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    text-decoration: none;
}

.knowledge-sub-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-red);
}

.knowledge-sub-card-image {
    width: 88px;
    height: 88px;
    border-radius: 12px;
    object-fit: cover;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.knowledge-sub-card:hover .knowledge-sub-card-image {
    transform: scale(1.05);
}

.knowledge-sub-card-content {
    flex: 1;
}

.knowledge-sub-card-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 5px;
    font-family: var(--font-heading);
    margin-bottom: 8px;
    letter-spacing: 0.2px;
}

.knowledge-sub-card-title {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--dark-navy);
    margin: 0 0 8px 0;
    line-height: 1.35;
    transition: color 0.3s ease;
}

.knowledge-sub-card:hover .knowledge-sub-card-title {
    color: var(--primary-red);
}

.knowledge-sub-card-link {
    color: var(--primary-red);
    font-size: 12px;
    font-weight: 600;
    font-family: var(--font-heading);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: gap 0.3s ease;
}

.knowledge-sub-card:hover .knowledge-sub-card-link {
    gap: 8px;
}

/* Explore CTA */
.knowledge-explore-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--primary-red);
    color: #ffffff;
    padding: 14px 36px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    font-family: var(--font-heading);
    transition: all 0.3s ease;
    box-shadow: 0 4px 14px rgba(214, 40, 40, 0.3);
}

.knowledge-explore-btn:hover {
    background: #b71c1c;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(214, 40, 40, 0.4);
    color: #ffffff;
}

/* ========== Responsive ========== */
@media (max-width: 768px) {
    .nasr-knowledge-section {
        padding: 50px 16px;
    }

    .knowledge-section-title {
        font-size: 1.6rem;
    }

    .knowledge-featured-card {
        flex-direction: column;
    }

    .knowledge-featured-image {
        min-height: 220px;
    }

    .knowledge-featured-content {
        padding: 24px;
    }

    .knowledge-featured-title {
        font-size: 1.35rem;
    }

    .knowledge-sub-grid {
        grid-template-columns: 1fr;
    }
}