/* Blog Enhanced Styles */
:root {
    --blog-accent: #6366f1;
    --blog-accent-hover: #4f46e5;
    --blog-accent-light: #818cf8;
    --blog-bg: #f8fafc;
    --blog-card-bg: #ffffff;
    --blog-text: #0f172a;
    --blog-text-primary: #1e293b;
    --blog-text-muted: #64748b;
    --blog-border: #e2e8f0;
    --blog-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --blog-shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
    --blog-shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
}

.dark {
    --blog-bg: #0a0e1a;
    --blog-card-bg: #151b2e;
    --blog-text: #f1f5f9;
    --blog-text-primary: #ffffff;
    --blog-text-muted: #94a3b8;
    --blog-border: #1e2a47;
    --blog-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --blog-shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
    --blog-shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
}

body.blog-page {
    background-color: var(--blog-bg);
    color: var(--blog-text);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    transition: background-color 0.3s, color 0.3s;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body.blog-page::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 20%, rgba(99, 102, 241, 0.08), transparent 40%),
                radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.06), transparent 45%);
    pointer-events: none;
    z-index: 0;
    animation: backgroundFloat 20s ease-in-out infinite;
}

@keyframes backgroundFloat {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.05); }
}

body.blog-page > * {
    position: relative;
    z-index: 1;
}

/* Hero Section */
.blog-hero {
    position: relative;
    padding: 60px 0 80px;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: #fff;
    overflow: hidden;
    margin-bottom: 40px;
}

.blog-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 70% 30%, rgba(99, 102, 241, 0.15), transparent 60%);
    pointer-events: none;
}

.featured-post {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    position: relative;
}

.featured-content .badge {
    display: inline-block;
    padding: 6px 12px;
    background: rgba(99, 102, 241, 0.2);
    color: #818cf8;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 16px;
    border: 1px solid rgba(99, 102, 241, 0.3);
}

.featured-content h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 16px;
    background: linear-gradient(to right, #fff, #cbd5e1);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.featured-content p {
    font-size: 1.1rem;
    color: #94a3b8;
    margin-bottom: 24px;
    line-height: 1.6;
    max-width: 90%;
}

.featured-image {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
    aspect-ratio: 16/9;
}

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

.featured-post:hover .featured-image img {
    transform: scale(1.03);
}

/* Controls Section (Search + Filter) */
.blog-controls {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 40px;
    align-items: center;
    flex-wrap: wrap;
    justify-content: space-between;
}

@media (min-width: 900px) {
    .blog-controls {
        flex-direction: row;
        align-items: center;
        gap: 16px;
    }

    .search-bar {
        flex: 1;
        max-width: none;
    }

    .category-filter-dropdown {
        width: 240px;
    }
}

.search-bar {
    width: 100%;
    max-width: 600px;
    position: relative;
}

.search-bar input {
    width: 100%;
    padding: 16px 20px;
    padding-left: 52px;
    border-radius: 16px;
    border: 2px solid var(--blog-border);
    background: var(--blog-card-bg);
    color: var(--blog-text-primary);
    font-size: 0.95rem;
    box-shadow: var(--blog-shadow-sm);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
}

.search-bar input::placeholder {
    color: #94a3b8;
}

.search-bar svg {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: #64748b;
    pointer-events: none;
}

.search-bar input:focus {
    outline: none;
    border-color: var(--blog-accent);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1), var(--blog-shadow-md);
    background: var(--blog-card-bg);
    transform: translateY(-2px);
}

.search-bar input:hover {
    border-color: var(--blog-accent-light);
    box-shadow: var(--blog-shadow-md);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.category-filter-dropdown {
    position: relative;
    min-width: 240px;
}

.category-select {
    width: 100%;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    padding: 16px 44px 16px 18px;
    border-radius: 16px;
    border: 2px solid var(--blog-border);
    background: var(--blog-card-bg);
    color: var(--blog-text-primary);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    box-shadow: var(--blog-shadow-sm);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
}

.category-select:focus {
    outline: none;
    border-color: var(--blog-accent);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1), var(--blog-shadow-md);
    transform: translateY(-2px);
}

.category-select:hover {
    border-color: var(--blog-accent-light);
    box-shadow: var(--blog-shadow-md);
}

.category-filter-dropdown::after {
    content: '';
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    width: 10px;
    height: 10px;
    border-left: 2px solid #64748b;
    border-bottom: 2px solid #64748b;
    transform: translateY(-70%) rotate(-45deg);
    pointer-events: none;
}

/* Blog Grid */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.blog-card {
    background: var(--blog-card-bg);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--blog-border);
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    box-shadow: var(--blog-shadow-sm);
    position: relative;
}

.blog-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.05));
    opacity: 0;
    transition: opacity 0.4s;
    border-radius: 20px;
    z-index: 0;
}

.blog-card > * {
    position: relative;
    z-index: 1;
}

.blog-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: var(--blog-shadow-lg);
    border-color: var(--blog-accent);
}

.blog-card:hover::before {
    opacity: 1;
}

.card-image {
    height: 220px;
    overflow: hidden;
    position: relative;
    background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
}

.card-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent 0%, rgba(0, 0, 0, 0.1) 100%);
    opacity: 0;
    transition: opacity 0.4s;
}

.blog-card:hover .card-image::after {
    opacity: 1;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.blog-card:hover .card-image img {
    transform: scale(1.08) rotate(1deg);
}

.card-content {
    padding: 28px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.card-meta {
    font-size: 0.8rem;
    color: var(--blog-text-muted);
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
    letter-spacing: 0.02em;
}

.card-meta span:first-child {
    opacity: 0.8;
}

.card-meta span:last-child {
    padding: 4px 12px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(139, 92, 246, 0.1));
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.card-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 12px;
    line-height: 1.35;
    color: var(--blog-text-primary);
    transition: color 0.3s ease;
    display: -webkit-box;
    line-clamp: 2;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

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

.card-excerpt {
    font-size: 0.95rem;
    color: var(--blog-text-muted);
    line-height: 1.6;
    margin-bottom: 20px;
    display: -webkit-box;
    line-clamp: 3;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.read-more {
    margin-top: auto;
    padding-top: 8px;
    color: var(--blog-accent);
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    position: relative;
    align-self: flex-start;
}

.read-more::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--blog-accent), var(--blog-accent-light));
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.blog-card:hover .read-more::after {
    width: calc(100% - 24px);
}

.read-more span {
    transition: transform 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    display: inline-block;
}

.blog-card:hover .read-more span {
    transform: translateX(6px) scale(1.1);
}

/* Newsletter */
.blog-newsletter {
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #a855f7 100%);
    background-size: 200% 200%;
    animation: gradientShift 8s ease infinite;
    border-radius: 28px;
    padding: 70px 24px;
    text-align: center;
    color: #fff;
    margin-bottom: 60px;
    box-shadow: 0 24px 56px -12px rgba(79, 70, 229, 0.5), inset 0 2px 0 rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.blog-newsletter::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.15), transparent 60%);
    pointer-events: none;
}

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

.blog-newsletter h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 12px;
}

.blog-newsletter p {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto 30px;
}

.newsletter-form {
    display: flex;
    gap: 10px;
    max-width: 500px;
    margin: 0 auto;
}

.newsletter-form input {
    flex: 1;
    padding: 14px 24px;
    border-radius: 50px;
    border: none;
    font-size: 1rem;
    outline: none;
}

.newsletter-form button {
    padding: 14px 28px;
    background: #0f172a;
    color: #fff;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s;
}

.newsletter-form button:hover {
    transform: scale(1.05);
}

/* Responsive */
@media (max-width: 768px) {
    .featured-post {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .featured-content h1 {
        font-size: 2rem;
    }

    .blog-newsletter {
        padding: 40px 20px;
    }

    .newsletter-form {
        flex-direction: column;
    }

    .newsletter-form button {
        width: 100%;
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

/* Fade-in animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Blog Header enhanced */
.blog-header {
    text-align: center;
    margin-bottom: 48px;
    padding: 32px 0;
    position: relative;
}

.blog-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, transparent, var(--blog-accent), var(--blog-accent-light), transparent);
    border-radius: 2px;
    box-shadow: 0 2px 12px rgba(99, 102, 241, 0.5);
}

.blog-header h1 {
    background: linear-gradient(135deg, var(--blog-text-primary), var(--blog-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
    animation: shimmerText 3s ease-in-out infinite;
}

@keyframes shimmerText {
    0%, 100% { filter: brightness(1); }
    50% { filter: brightness(1.2); }
}

/* No results state */
.no-results {
    text-align: center;
    padding: 80px 24px;
    color: var(--blog-text-muted);
}

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

.no-results p {
    font-size: 1rem;
    opacity: 0.8;
}

/* Selection styles */
::selection {
    background: rgba(99, 102, 241, 0.2);
    color: var(--blog-text-primary);
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

::-webkit-scrollbar-track {
    background: var(--blog-bg);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--blog-accent), var(--blog-accent-light));
    border-radius: 6px;
    border: 2px solid var(--blog-bg);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--blog-accent-hover), var(--blog-accent));
}

/* Focus states for accessibility */
.search-bar input:focus-visible,
.category-select:focus-visible,
.blog-card:focus-visible {
    outline: 3px solid rgba(99, 102, 241, 0.5);
    outline-offset: 4px;
}

/* Loading skeleton animation */
@keyframes skeleton-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.skeleton {
    background: linear-gradient(90deg, var(--blog-border) 25%, var(--blog-card-bg) 50%, var(--blog-border) 75%);
    background-size: 200% 100%;
    animation: skeleton-pulse 1.5s ease-in-out infinite;
}

/* Tooltip styles for category badges */
.card-meta span:last-child {
    position: relative;
    cursor: help;
}

/* Print styles */
@media print {
    .blog-controls,
    .blog-newsletter,
    .search-bar,
    .category-filter-dropdown {
        display: none;
    }
    
    .blog-card {
        page-break-inside: avoid;
        break-inside: avoid;
    }
}