/* ============================================
   BLOG PAGE STYLES - Enhanced with Interactions
   ============================================ */

/* ============================================
   BLOG HEADER
   ============================================ */

.blog-header-section {
    padding: 10rem 0 5rem 0;
    background: var(--gradient-hero);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.blog-header-section::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -15%;
    width: 60%;
    height: 120%;
    background: radial-gradient(ellipse, rgba(72, 202, 228, 0.12) 0%, transparent 60%);
    pointer-events: none;
}

.blog-header-section h1 {
    color: white;
    font-size: clamp(2.5rem, 6vw, 4rem);
    margin-bottom: 1.25rem;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.blog-header-section p {
    font-size: clamp(1rem, 2.5vw, 1.375rem);
    color: rgba(255, 255, 255, 0.9);
    max-width: 650px;
    margin: 0 auto;
    line-height: 1.7;
}

/* Background image styling */
.blog-header-with-bg {
    position: relative;
    overflow: hidden;
}

.blog-header-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.blog-header-background img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.blog-header-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(145deg,
        rgba(12, 25, 41, 0.88) 0%,
        rgba(26, 58, 92, 0.82) 40%,
        rgba(0, 119, 182, 0.78) 100%);
}

.blog-header-with-bg .container {
    position: relative;
    z-index: 1;
}

/* ============================================
   CATEGORY FILTER
   ============================================ */

.blog-filter-section {
    padding: 2rem 0;
    background: var(--background);
    border-bottom: 1px solid var(--border-light);
    position: sticky;
    top: 72px;
    z-index: 100;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

.category-filters {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
}

.category-tag {
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius-full);
    font-family: 'Outfit', sans-serif;
    font-size: 0.875rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    background: var(--gray-100);
    color: var(--gray-700);
    border: 1.5px solid transparent;
}

.category-tag:hover {
    background: var(--primary-100);
    color: var(--primary-600);
    transform: translateY(-2px);
}

.category-tag.active {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-sm);
}

/* ============================================
   BLOG GRID
   ============================================ */

.blog-grid-section {
    padding: 4rem 0 6rem;
    background: var(--gradient-subtle);
}

.blog-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 768px) {
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1200px) {
    .blog-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ============================================
   BLOG CARD - Enhanced
   ============================================ */

.blog-card {
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    position: relative;
}

.blog-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1;
}

.blog-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-200);
}

.blog-card:hover::before {
    transform: scaleX(1);
}

/* Card with image */
.blog-card-image {
    aspect-ratio: 16/9;
    overflow: hidden;
    position: relative;
    background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-700) 100%);
}

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

.blog-card:hover .blog-card-image img {
    transform: scale(1.08);
}

/* Gradient placeholder for cards without images */
.blog-card-gradient {
    aspect-ratio: 16/9;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.blog-card-gradient.gradient-blue {
    background: linear-gradient(135deg, #0077b6 0%, #1e4d7b 100%);
}

.blog-card-gradient.gradient-teal {
    background: linear-gradient(135deg, #00a8e8 0%, #0077b6 100%);
}

.blog-card-gradient.gradient-purple {
    background: linear-gradient(135deg, #6366f1 0%, #4338ca 100%);
}

.blog-card-gradient.gradient-orange {
    background: linear-gradient(135deg, #ff6b35 0%, #e55a2b 100%);
}

.blog-card-gradient.gradient-green {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.blog-card-gradient .card-icon {
    font-size: 5rem;
    color: rgba(255, 255, 255, 0.15);
    transition: transform 0.4s ease;
}

.blog-card:hover .blog-card-gradient .card-icon {
    transform: scale(1.1) rotate(5deg);
}

/* Card body */
.blog-card-body {
    padding: 1.75rem 2rem 2rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.blog-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    gap: 0.75rem;
}

.blog-category {
    display: inline-flex;
    align-items: center;
    padding: 0.4rem 0.875rem;
    background: var(--primary-100);
    color: var(--primary-600);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    transition: all var(--transition-fast);
}

.blog-card:hover .blog-category {
    background: var(--primary-500);
    color: white;
}

.blog-date {
    color: var(--text-muted);
    font-size: 0.8125rem;
    white-space: nowrap;
}

.blog-card-content {
    flex: 1;
}

.blog-card-content h2 {
    color: var(--text-primary);
    font-size: 1.375rem;
    margin-bottom: 0.875rem;
    line-height: 1.35;
    transition: color var(--transition-fast);
}

.blog-card:hover .blog-card-content h2 {
    color: var(--primary-600);
}

.blog-card-content p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-bottom: 1.25rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-meta {
    display: flex;
    gap: 1.25rem;
    align-items: center;
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid var(--border-light);
}

.read-time {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    color: var(--text-muted);
    font-size: 0.8125rem;
}

.read-time .material-symbols-outlined {
    font-size: 16px;
    color: var(--primary-400);
}

.blog-card-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-500);
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    font-size: 0.9375rem;
    text-decoration: none;
    margin-left: auto;
    transition: all var(--transition-fast);
}

.blog-card-link .material-symbols-outlined {
    font-size: 18px;
    transition: transform var(--transition-fast);
}

.blog-card:hover .blog-card-link {
    color: var(--primary-700);
}

.blog-card:hover .blog-card-link .material-symbols-outlined {
    transform: translateX(4px);
}

/* ============================================
   FEATURED ARTICLE SECTION
   ============================================ */

.blog-featured-section {
    padding: 4rem 0 0;
    background: var(--gradient-subtle);
}

.featured-article {
    display: grid;
    grid-template-columns: 1fr;
    background: white;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--primary-200);
    transition: all 0.4s ease;
    position: relative;
}

@media (min-width: 768px) {
    .featured-article {
        grid-template-columns: 1fr 1fr;
    }
}

.featured-article:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
    border-color: var(--primary-300);
}

.featured-article .blog-card-image {
    position: relative;
    aspect-ratio: 16/9;
    min-height: 280px;
    overflow: hidden;
}

@media (min-width: 768px) {
    .featured-article .blog-card-image {
        aspect-ratio: auto;
        min-height: 100%;
    }
}

.featured-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-800) 50%, #1a3a5c 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.featured-icon {
    font-size: 8rem;
    color: rgba(255, 255, 255, 0.08);
    transition: transform 0.5s ease;
}

.featured-article:hover .featured-icon {
    transform: scale(1.1) rotate(5deg);
}

.featured-badge {
    position: absolute;
    top: 1.25rem;
    left: 1.25rem;
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.95);
    color: var(--primary-700);
    border-radius: var(--radius-full);
    font-family: 'Outfit', sans-serif;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(10px);
    z-index: 2;
}

.featured-badge .material-symbols-outlined {
    font-size: 14px;
    color: #f59e0b;
}

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

.featured-article .blog-card-content h2 {
    font-size: 1.625rem;
    line-height: 1.3;
}

@media (min-width: 768px) {
    .featured-article .blog-card-content h2 {
        font-size: 1.875rem;
    }
}

.featured-article .blog-card-content p {
    font-size: 1rem;
    -webkit-line-clamp: 4;
    color: var(--text-secondary);
    line-height: 1.75;
}

.featured-link {
    font-weight: 700;
}

.featured-article:hover .blog-card-content h2 {
    color: var(--primary-600);
}

.featured-article::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    z-index: 1;
}

@media (max-width: 768px) {
    .blog-featured-section {
        padding: 3rem 0 0;
    }

    .featured-article .blog-card-body {
        padding: 2rem 1.5rem;
    }

    .featured-article .blog-card-content h2 {
        font-size: 1.375rem;
    }
}

/* ============================================
   NEWSLETTER SECTION
   ============================================ */

.blog-newsletter {
    background: var(--gradient-hero);
    padding: 5rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.blog-newsletter::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 150%;
    background: radial-gradient(ellipse, rgba(72, 202, 228, 0.1) 0%, transparent 60%);
    pointer-events: none;
}

.blog-newsletter .container {
    position: relative;
    z-index: 1;
}

.blog-newsletter h2 {
    color: white;
    margin-bottom: 1rem;
}

.blog-newsletter p {
    color: rgba(255, 255, 255, 0.85);
    max-width: 500px;
    margin: 0 auto 2rem;
}

.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    max-width: 400px;
    margin: 0 auto;
}

@media (min-width: 640px) {
    .newsletter-form {
        flex-direction: row;
    }
}

.newsletter-form input {
    flex: 1;
    padding: 1rem 1.25rem;
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1rem;
    outline: none;
}

.newsletter-form input:focus {
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
}

.newsletter-form button {
    padding: 1rem 1.75rem;
    background: white;
    color: var(--primary-700);
    border: none;
    border-radius: var(--radius-lg);
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.newsletter-form button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ============================================
   BLOG POST PAGE
   ============================================ */

.blog-post-section {
    padding: 8rem 0 5rem 0;
    background: var(--gradient-subtle);
}

.blog-container {
    max-width: 800px;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    margin-bottom: 2rem;
    transition: all var(--transition-fast);
}

.back-link:hover {
    color: var(--primary-600);
    gap: 0.75rem;
}

.back-link .material-symbols-outlined {
    font-size: 20px;
}

.blog-post-header {
    background: white;
    border-radius: var(--radius-2xl);
    padding: 3rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
    margin-bottom: 2rem;
}

.blog-post-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.blog-post-header h1 {
    color: var(--text-primary);
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.blog-post-intro {
    font-size: 1.1875rem;
    color: var(--text-secondary);
    line-height: 1.75;
    margin: 0;
}

.blog-post-content {
    background: white;
    border-radius: var(--radius-2xl);
    padding: 3rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
}

.blog-post-content h2 {
    color: var(--text-primary);
    font-size: 1.75rem;
    margin-top: 3rem;
    margin-bottom: 1.25rem;
}

.blog-post-content h2:first-child {
    margin-top: 0;
}

.blog-post-content h3 {
    color: var(--text-primary);
    font-size: 1.375rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.blog-post-content p {
    color: var(--text-secondary);
    font-size: 1.0625rem;
    line-height: 1.85;
    margin-bottom: 1.5rem;
}

.blog-post-content ul,
.blog-post-content ol {
    color: var(--text-secondary);
    font-size: 1.0625rem;
    line-height: 1.85;
    margin-bottom: 1.5rem;
    padding-left: 1.75rem;
}

.blog-post-content li {
    margin-bottom: 0.625rem;
}

.blog-post-content strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* Podcast info box */
.podcast-info {
    background: var(--gray-50);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-light);
}

.podcast-info p {
    margin-bottom: 0.5rem;
    font-size: 0.9375rem;
}

.podcast-info p:last-child {
    margin-bottom: 0;
}

/* Code block */
.code-block {
    background: var(--gray-900);
    color: #e2e8f0;
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    margin: 1.5rem 0;
    overflow-x: auto;
}

.code-block pre {
    margin: 0;
    font-family: 'JetBrains Mono', 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.65;
}

/* Blog CTA */
.blog-cta {
    background: var(--gradient-hero);
    color: white;
    padding: 3rem;
    border-radius: var(--radius-2xl);
    text-align: center;
    margin-top: 3rem;
    position: relative;
    overflow: hidden;
}

.blog-cta::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 50%;
    height: 150%;
    background: radial-gradient(ellipse, rgba(72, 202, 228, 0.12) 0%, transparent 60%);
    pointer-events: none;
}

.blog-cta h3 {
    color: white;
    margin-bottom: 1rem;
    position: relative;
}

.blog-cta p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    position: relative;
}

/* ============================================
   ANIMATIONS
   ============================================ */

/* Stagger animation for blog cards */
.blog-card {
    opacity: 0;
    transform: translateY(20px);
    animation: blogCardFadeIn 0.6s ease forwards;
}

.blog-card:nth-child(1) { animation-delay: 0.1s; }
.blog-card:nth-child(2) { animation-delay: 0.2s; }
.blog-card:nth-child(3) { animation-delay: 0.3s; }
.blog-card:nth-child(4) { animation-delay: 0.4s; }
.blog-card:nth-child(5) { animation-delay: 0.5s; }
.blog-card:nth-child(6) { animation-delay: 0.6s; }

@keyframes blogCardFadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
    .blog-header-section {
        padding: 8rem 0 4rem 0;
    }

    .blog-grid-section {
        padding: 3rem 0 4rem;
    }

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

    .blog-card-content h2 {
        font-size: 1.25rem;
    }

    .blog-post-section {
        padding: 6rem 0 3rem 0;
    }

    .blog-post-header,
    .blog-post-content {
        padding: 2rem 1.5rem;
        border-radius: var(--radius-xl);
    }

    .blog-post-header h1 {
        font-size: 1.75rem;
    }

    .blog-post-intro {
        font-size: 1rem;
    }

    .blog-post-content h2 {
        font-size: 1.5rem;
    }

    .blog-post-content h3 {
        font-size: 1.25rem;
    }

    .blog-post-content p,
    .blog-post-content ul,
    .blog-post-content ol {
        font-size: 1rem;
    }

    .blog-cta {
        padding: 2rem 1.5rem;
    }

    .featured-article .blog-card-body {
        padding: 2rem 1.5rem;
    }
}

/* ============================================
   REDUCED MOTION
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    .blog-card {
        animation: none;
        opacity: 1;
        transform: none;
    }

    .blog-card,
    .blog-card-image img,
    .blog-card-link .material-symbols-outlined {
        transition: none;
    }
}