/* ═══════════════════════════════════════════════════════════
   Blog & CMS Styles v1.0.0
   Phase 11 Implementation
   ═══════════════════════════════════════════════════════════ */

/* ── Blog Header ──────────────────────────────────────────── */
.blog-header {
    padding: 8rem 0 3rem;
    background: linear-gradient(180deg, var(--navy-light) 0%, var(--navy) 100%);
    text-align: center;
}

.blog-header-content {
    max-width: 800px;
    margin: 0 auto;
}

.blog-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--white) 0%, var(--gold) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.blog-subtitle {
    font-size: 1.1rem;
    color: var(--gray-300);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.blog-subscribe {
    margin-top: 2rem;
}

.btn--rss {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: rgba(240, 179, 35, 0.1);
    border: 1px solid var(--gold);
    color: var(--gold);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.btn--rss:hover {
    background: var(--gold);
    color: var(--navy);
}

/* ── Category Filters ─────────────────────────────────────── */
.blog-filters {
    padding: 1.5rem 0;
    background: var(--navy);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    position: sticky;
    top: 0;
    z-index: 100;
}

.filter-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
}

.filter-btn {
    padding: 0.5rem 1rem;
    background: transparent;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 20px;
    color: var(--gray-300);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition);
}

.filter-btn:hover {
    border-color: var(--gold);
    color: var(--white);
}

.filter-btn.active {
    background: var(--gold);
    border-color: var(--gold);
    color: var(--navy);
}

/* ── Featured Post ───────────────────────────────────────── */
.blog-featured {
    padding: 3rem 0;
    background: var(--navy-light);
}

.featured-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    background: var(--navy);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.featured-image {
    position: relative;
    min-height: 400px;
    overflow: hidden;
}

.featured-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.featured-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, var(--navy) 0%, transparent 50%);
}

.featured-content {
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.featured-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--gold);
    color: var(--navy);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    border-radius: 4px;
    margin-bottom: 1rem;
}

.featured-title {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.featured-title a {
    color: var(--white);
    text-decoration: none;
}

.featured-title a:hover {
    color: var(--gold);
}

.featured-excerpt {
    color: var(--gray-300);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.featured-meta {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    color: var(--gray-500);
    font-size: 0.9rem;
}

/* ── Blog Grid ───────────────────────────────────────────── */
.blog-grid-section {
    padding: 3rem 0;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.blog-card {
    background: var(--navy-light);
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition);
    border: 1px solid rgba(255,255,255,0.05);
}

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

.blog-card-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.blog-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition);
}

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

.blog-card-category {
    position: absolute;
    top: 1rem;
    left: 1rem;
    padding: 0.25rem 0.75rem;
    background: var(--gold);
    color: var(--navy);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 4px;
}

.blog-card-content {
    padding: 1.5rem;
}

.blog-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.blog-card-title a {
    color: var(--white);
    text-decoration: none;
}

.blog-card-title a:hover {
    color: var(--gold);
}

.blog-card-excerpt {
    color: var(--gray-300);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--gray-500);
    font-size: 0.85rem;
}

.blog-card-meta span {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

/* ── Pagination ──────────────────────────────────────────── */
.blog-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.pagination-btn {
    padding: 0.5rem 1rem;
    background: transparent;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--radius-sm);
    color: var(--gray-300);
    cursor: pointer;
    transition: all var(--transition);
}

.pagination-btn:hover:not(:disabled) {
    border-color: var(--gold);
    color: var(--white);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-btn.active {
    background: var(--gold);
    border-color: var(--gold);
    color: var(--navy);
}

.pagination-info {
    color: var(--gray-500);
    font-size: 0.9rem;
    margin: 0 1rem;
}

/* ── Loading State ──────────────────────────────────────── */
.blog-loading {
    grid-column: 1 / -1;
    text-align: center;
    padding: 4rem 2rem;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid rgba(240, 179, 35, 0.2);
    border-top-color: var(--gold);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.blog-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 4rem 2rem;
}

.blog-empty h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--white);
}

.blog-empty p {
    color: var(--gray-300);
}

/* ── Newsletter Section ────────────────────────────────── */
.blog-newsletter {
    padding: 3rem 0 5rem;
}

.newsletter-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    padding: 2rem;
    background: linear-gradient(135deg, var(--navy-light) 0%, rgba(240, 179, 35, 0.05) 100%);
    border-radius: var(--radius);
    border: 1px solid rgba(240, 179, 35, 0.2);
}

.newsletter-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.newsletter-content p {
    color: var(--gray-300);
    max-width: 400px;
}

.newsletter-form {
    display: flex;
    gap: 0.75rem;
    min-width: 350px;
}

.newsletter-form input {
    flex: 1;
    padding: 0.875rem 1rem;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--radius-sm);
    color: var(--white);
    font-size: 0.95rem;
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--gold);
}

.newsletter-form input::placeholder {
    color: var(--gray-500);
}

/* ── Individual Post Page ───────────────────────────────── */
.post-header {
    padding: 6rem 0 2rem;
    background: var(--navy);
}

.post-title {
    font-size: clamp(2rem, 5vw, 2.75rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.post-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1.5rem;
    color: var(--gray-300);
    margin-bottom: 2rem;
}

.post-category {
    padding: 0.35rem 0.875rem;
    background: var(--gold);
    color: var(--navy);
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 4px;
}

.post-date {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.post-reading-time {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.post-tag {
    padding: 0.25rem 0.75rem;
    background: rgba(255,255,255,0.08);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--gray-300);
}

.post-featured-image {
    width: 100%;
    max-height: 500px;
    object-fit: cover;
    border-radius: var(--radius);
    margin-bottom: 2rem;
}

.post-content {
    padding: 2rem 0 4rem;
    max-width: 800px;
    margin: 0 auto;
}

.post-content h2 {
    font-size: 1.75rem;
    margin: 2.5rem 0 1rem;
    color: var(--white);
}

.post-content h3 {
    font-size: 1.35rem;
    margin: 2rem 0 0.875rem;
    color: var(--white);
}

.post-content p {
    margin-bottom: 1.25rem;
    line-height: 1.8;
    color: var(--gray-100);
}

.post-content ul,
.post-content ol {
    margin-bottom: 1.25rem;
    padding-left: 1.5rem;
}

.post-content li {
    margin-bottom: 0.5rem;
    line-height: 1.7;
    color: var(--gray-100);
}

.post-content blockquote {
    margin: 1.5rem 0;
    padding: 1rem 1.5rem;
    border-left: 4px solid var(--gold);
    background: var(--navy-light);
    font-style: italic;
    color: var(--gray-300);
}

.post-content code {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.9em;
    padding: 0.2rem 0.4rem;
    background: rgba(255,255,255,0.08);
    border-radius: 4px;
    color: var(--gold);
}

.post-content pre {
    margin: 1.5rem 0;
    padding: 1.25rem;
    background: var(--navy-light);
    border-radius: var(--radius-sm);
    overflow-x: auto;
}

.post-content pre code {
    background: none;
    padding: 0;
    color: var(--gray-100);
}

.post-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
    margin: 1.5rem 0;
}

.post-content a {
    color: var(--gold);
    text-decoration: underline;
    text-decoration-color: rgba(240, 179, 35, 0.3);
}

.post-content a:hover {
    text-decoration-color: var(--gold);
}

/* ── Social Sharing ──────────────────────────────────────── */
.post-share {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem 0;
    border-top: 1px solid rgba(255,255,255,0.1);
    margin-top: 2rem;
}

.post-share span {
    color: var(--gray-500);
    font-size: 0.9rem;
}

.share-btn {
    padding: 0.5rem 1rem;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-sm);
    color: var(--gray-300);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.share-btn:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--gold);
    color: var(--white);
}

/* ── Author Box ──────────────────────────────────────────── */
.post-author {
    display: flex;
    gap: 1.5rem;
    padding: 2rem;
    background: var(--navy-light);
    border-radius: var(--radius);
    margin-top: 3rem;
}

.author-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--gold);
}

.author-info h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.author-info p {
    color: var(--gray-300);
    font-size: 0.9rem;
    line-height: 1.6;
}

.author-social {
    display: flex;
    gap: 0.75rem;
    margin-top: 1rem;
}

.author-social a {
    color: var(--gray-500);
    transition: color var(--transition);
}

.author-social a:hover {
    color: var(--gold);
}

/* ── Mobile Responsive ──────────────────────────────────── */
@media (max-width: 768px) {
    .blog-header {
        padding: 6rem 0 2rem;
    }
    
    .featured-card {
        grid-template-columns: 1fr;
    }
    
    .featured-image {
        min-height: 200px;
    }
    
    .featured-content {
        padding: 1.5rem;
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
    }
    
    .newsletter-card {
        flex-direction: column;
        text-align: center;
    }
    
    .newsletter-form {
        min-width: 100%;
        flex-direction: column;
    }
    
    .post-content {
        padding: 1rem 0 2rem;
    }
    
    .post-author {
        flex-direction: column;
        text-align: center;
    }
    
    .author-social {
        justify-content: center;
    }
}

/* ── Light Mode Adjustments ─────────────────────────────── */
[data-theme="light"] .blog-card {
    background: var(--navy-light);
    border-color: rgba(0,0,0,0.05);
}

[data-theme="light"] .blog-filters {
    background: var(--white);
    border-bottom-color: rgba(0,0,0,0.08);
}

[data-theme="light"] .filter-btn {
    border-color: rgba(0,0,0,0.2);
    color: var(--gray-700);
}

[data-theme="light"] .filter-btn.active {
    background: var(--gold);
    color: var(--navy);
}