.blog-page-header {
    padding: 1rem 1rem;
    text-align: center;
    background-color: var(--color-bg-light);
}

.blog-page-header h1 {
    font-size: 2.8rem;
}

.blog-page-header p {
    font-size: 1.15rem;
    color: var(--color-text-light);
    max-width: 700px;
    margin: 0 auto;
}

.blog-list-container {
    padding: 2rem 1rem;
}

/* --- NEW: Filter Tab Navigation --- */
.filter-tabs-nav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 3rem;
}

.filter-tab-btn {
    padding: 0.75rem 1.8rem;
    cursor: pointer;
    background: white;
    border: 1px solid var(--color-bg-dividers);
    font-size: 1rem;
    font-weight: 700;
    font-family: var(--font-primary);
    border-radius: 50px;
    color: var(--color-text-light);
    transition: all 0.3s ease;
}

.filter-tab-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.filter-tab-btn.active {
    background-color: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

/* --- Unified Content Grid --- */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    justify-items: start;
}

/* Limit maximum width for individual cards to prevent stretching */
.resource-card {
    background: #fff;
    border: 1px solid var(--color-bg-dividers);
    border-radius: var(--border-radius);
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.03);
    transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
    width: 100%;
    max-width: 400px;
    /* Prevent cards from being too wide */

    /* Animation Properties for Filtering */
    opacity: 1;
    transform: scale(1);
    transition: transform 0.4s ease, opacity 0.4s ease;
}

.resource-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

/* Hide/Show state for filtering */
.resource-card.hidden {
    display: none !important;
}

.card-image-wrapper {
    height: 220px;
    overflow: hidden;
    position: relative;
}

.card-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.resource-card:hover .card-image-wrapper img {
    transform: scale(1.05);
}

/* Play icon specifically for video cards */
.play-icon-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--color-primary);
    font-size: 2rem;
}

.card-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.card-category {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-primary);
    text-transform: uppercase;
    margin-bottom: 0.75rem;
}

.card-title {
    font-size: 1.3rem;
    line-height: 1.4;
    color: var(--color-text);
    margin-bottom: 1rem;
}

.card-excerpt {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text-light);
    flex-grow: 1;
    margin-bottom: 1.5rem;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    color: var(--color-text-light);
    padding-top: 1rem;
    border-top: 1px solid var(--color-bg-dividers);
}

.card-readmore {
    font-weight: 700;
    color: var(--color-primary);
}


/* --- Blog Detail (Article) Page (Unchanged from previous version) --- */
.article-container {
    max-width: 800px;
    margin: 4rem auto;
    padding: 0 1rem;
}

.article-header h1 {
    font-size: 2.2rem;
    line-height: 1.2;
    margin-bottom: 1rem;
}

@media(min-width: 768px) {
    .article-header h1 {
        font-size: 3rem;
    }
}

.article-meta {
    display: flex;
    gap: 1rem;
    color: var(--color-text-light);
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--color-bg-dividers);
}

.article-hero-image {
    border-radius: var(--border-radius);
    overflow: hidden;
    margin-bottom: 3rem;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.article-hero-image img {
    width: 100%;
}

.article-content {
    line-height: 1.8;
    font-size: 1.1rem;
    color: var(--color-text);
}

.article-content h2 {
    font-size: 1.8rem;
    margin: 2.5rem 0 1rem 0;
}

.article-content p {
    margin-bottom: 1.5rem;
}

.article-footer {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--color-bg-dividers);
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
}

@media (min-width: 768px) {
    .article-footer {
        flex-direction: row;
        justify-content: space-between;
    }
}

.social-share a {
    text-decoration: none;
    margin-left: 1rem;
    display: inline-block;
    opacity: 0.7;
    transition: all 0.3s ease;
}

.social-share a:hover {
    opacity: 1;
    transform: translateY(-2px);
}

/* ========================================== */
/* Blog Navigation Styles */
/* ========================================== */

/* Top Navigation Bar */
.blog-navigation {
    background-color: var(--color-bg-light);
    border-bottom: 1px solid var(--color-bg-dividers);
    padding: 1rem 0;
    margin: -4rem -1rem 3rem -1rem;
    position: sticky;
    top: 80px;
    z-index: 10;
}

.blog-navigation .nav-buttons {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1rem;
}

.nav-article-controls {
    display: flex;
    gap: 0.5rem;
}

.nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    text-decoration: none;
    color: var(--color-text);
    background-color: var(--white);
    border: 1px solid var(--color-bg-dividers);
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.nav-btn:hover:not(.disabled) {
    background-color: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(10, 96, 171, 0.2);
}

.nav-btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background-color: var(--color-bg-light);
}

.back-to-list {
    font-weight: 700;
    color: var(--color-white);
    border-color: var(--color-primary);
}

.back-to-list:hover {
    background-color: var(--color-primary);
    color: white;
}

/* Bottom Navigation Cards */
.blog-navigation-bottom {
    margin: 4rem 0 2rem 0;
    padding: 2rem 0;
    border-top: 1px solid var(--color-bg-dividers);
}

.blog-navigation-bottom .nav-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    max-width: 800px;
    margin: 0 auto;
}

.nav-card {
    display: block;
    padding: 1.5rem;
    background-color: var(--color-bg-light);
    border: 1px solid var(--color-bg-dividers);
    border-radius: var(--border-radius);
    text-decoration: none;
    color: var(--color-text);
    transition: all 0.3s ease;
    min-height: 80px;
}

.nav-card:hover {
    background-color: var(--white);
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(10, 96, 171, 0.1);
}

.nav-card.prev-card {
    text-align: left;
}

.nav-card.next-card {
    text-align: right;
}

.nav-direction {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav-title {
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-text-dark);
}

.nav-card-placeholder {
    /* Empty space for alignment when no previous/next post */
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .blog-navigation {
        position: relative;
        top: auto;
        margin: -2rem -1rem 2rem -1rem;
    }

    .blog-navigation .nav-buttons {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }

    .nav-article-controls {
        justify-content: center;
    }

    .nav-btn .nav-text {
        display: none;
    }

    .blog-navigation-bottom .nav-buttons {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .nav-card.next-card {
        text-align: left;
    }

    .nav-title {
        font-size: 0.9rem;
    }
}