/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Japanese-inspired color palette */
    --bg-primary: #fafaf8;
    --bg-secondary: #f5f5f3;
    --bg-tertiary: #ebe9e6;
    --text-primary: #2b2b2b;
    --text-secondary: #5a5a5a;
    --text-muted: #8a8a8a;
    
    /* Traditional Japanese colors */
    --accent-primary: #b8272c; /* Beni (crimson red) */
    --accent-secondary: #165e83; /* Ai (indigo blue) */
    --accent-tertiary: #e9dfe5; /* Ume (plum blossom) */
    --accent-gold: #d4a574; /* Kincha (gold brown) */
    
    --gradient: linear-gradient(135deg, #b8272c 0%, #165e83 100%);
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --border: #d8d6d2;
    --border-hover: #b8b6b2;
    
    /* Japanese spacing - based on tatami mat proportions (1:2) */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 48px;
    --spacing-xl: 96px;
}

[data-theme="dark"] {
    /* Dark theme with Japanese ink (sumi) inspiration */
    --bg-primary: #1a1a1a;
    --bg-secondary: #242424;
    --bg-tertiary: #2f2f2f;
    --text-primary: #f5f5f3;
    --text-secondary: #c8c6c3;
    --text-muted: #8a8886;
    
    --accent-primary: #e85d75; /* Lighter beni for dark mode */
    --accent-secondary: #4a9eba; /* Lighter ai */
    --accent-tertiary: #9d8ca1;
    --accent-gold: #d4a574;
    
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
    --border: #3f3f3f;
    --border-hover: #5a5a5a;
}

body {
    font-family: 'Noto Sans JP', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.8;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Japanese wave pattern background */
.wave-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 400px;
    background: 
        radial-gradient(circle at 20% 50%, rgba(184, 39, 44, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(22, 94, 131, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

/* Header and Navigation */
.header {
    position: relative;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border);
}

[data-theme="dark"] .header {
    background: var(--bg-primary);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    max-width: 1200px;
    margin: 0 auto;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
}

.nav-logo {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.nav-title {
    font-size: 1.1rem;
    color: var(--text-primary);
}

.nav-subtitle-jp {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 400;
    padding-left: 8px;
    border-left: 1px solid var(--border);
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
    font-size: 0.95rem;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-primary);
    transition: width 0.3s ease;
}

.nav-links a:hover {
    color: var(--accent-primary);
}

.nav-links a:hover::after {
    width: 100%;
}

.theme-toggle {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 12px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    background: var(--accent-secondary);
    color: white;
    border-color: var(--accent-secondary);
}

/* Hero Section */
.hero {
    position: relative;
    padding: var(--spacing-xl) 0;
    text-align: center;
    overflow: hidden;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 300;
    margin-bottom: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.title-en {
    font-size: 2.2rem;
    font-weight: 700;
}

.title-jp {
    font-size: 1.2rem;
    font-weight: 400;
    color: var(--text-secondary);
    letter-spacing: 2px;
}

.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
    line-height: 1.8;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.stat i {
    font-size: 2rem;
    color: var(--accent-primary);
}

.stat span {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Section Titles */
.section-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.section-title .title-en {
    font-size: 2.5rem;
    font-weight: 700;
}

.section-title .title-jp {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-secondary);
    letter-spacing: 3px;
}

/* Services Section */
.services {
    padding: var(--spacing-xl) 0;
    background: var(--bg-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.service-tile {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-tile::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: var(--accent-primary);
    transition: height 0.3s ease;
}

.service-tile:hover::before {
    height: 100%;
}

.service-tile:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-primary);
}

.tile-icon {
    width: 60px;
    height: 60px;
    background: var(--bg-tertiary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
}

.tile-icon i {
    font-size: 1.75rem;
    color: var(--accent-primary);
}

.service-tile h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.service-tile p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.8;
}

.tile-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: var(--spacing-sm);
}

.feature {
    background: var(--bg-tertiary);
    padding: 4px 12px;
    border-radius: 16px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.tile-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 500;
    margin-top: var(--spacing-sm);
    transition: gap 0.3s ease;
}

.tile-link:hover {
    gap: 12px;
}

.tile-link.disabled {
    color: var(--text-muted);
    cursor: not-allowed;
}

/* Upcoming Projects Section */
.upcoming {
    padding: var(--spacing-xl) 0;
}

.upcoming-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.upcoming-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: var(--spacing-lg);
    position: relative;
    transition: all 0.3s ease;
}

.upcoming-card.featured {
    grid-column: span 1;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border: 2px solid var(--accent-gold);
}

.card-ribbon {
    position: absolute;
    top: 20px;
    right: -30px;
    background: var(--accent-primary);
    color: white;
    padding: 4px 40px;
    transform: rotate(45deg);
    font-size: 0.75rem;
    font-weight: 600;
    box-shadow: var(--shadow);
}

.card-icon {
    width: 70px;
    height: 70px;
    background: var(--accent-gold);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
}

.card-icon i {
    font-size: 2rem;
    color: white;
}

.upcoming-card h3 {
    font-size: 1.75rem;
    margin-bottom: 8px;
    font-weight: 600;
}

.card-subtitle {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.05rem;
}

.card-content p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-sm);
}

.specs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
    margin: var(--spacing-md) 0;
}

.spec-item {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: var(--spacing-sm);
    text-align: center;
}

.spec-item i {
    font-size: 1.5rem;
    color: var(--accent-secondary);
    display: block;
    margin-bottom: 8px;
}

.spec-item span {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.spec-item strong {
    display: block;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.use-cases {
    margin: var(--spacing-md) 0;
    padding: var(--spacing-sm);
    background: var(--bg-primary);
    border-radius: 8px;
    border: 1px solid var(--border);
}

.use-cases h4 {
    margin-bottom: var(--spacing-sm);
    color: var(--accent-primary);
}

.use-cases ul {
    list-style: none;
}

.use-cases li {
    padding: 8px 0;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 12px;
}

.use-cases li i {
    color: var(--accent-secondary);
    font-size: 0.9rem;
}

.timeline {
    display: flex;
    justify-content: space-between;
    margin-top: var(--spacing-md);
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 12px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--border);
}

.timeline-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    position: relative;
    z-index: 1;
}

.timeline-item i {
    width: 24px;
    height: 24px;
    background: var(--bg-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.timeline-item.completed i {
    color: var(--accent-primary);
}

.timeline-item.active i {
    color: var(--accent-gold);
    animation: pulse 2s infinite;
}

.timeline-item span {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-align: center;
    max-width: 80px;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Portfolio Section */
.portfolio {
    padding: var(--spacing-xl) 0;
    background: var(--bg-secondary);
}

.portfolio-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
    color: var(--text-secondary);
    line-height: 1.8;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.portfolio-item {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.portfolio-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-secondary);
}

.item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.item-header i {
    font-size: 1.5rem;
    color: var(--accent-secondary);
}

.item-category {
    background: var(--bg-tertiary);
    padding: 4px 12px;
    border-radius: 16px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.portfolio-item h3 {
    font-size: 1.4rem;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.portfolio-item p {
    color: var(--text-secondary);
    line-height: 1.8;
    flex-grow: 1;
}

.item-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: var(--spacing-sm) 0;
}

.tag {
    background: var(--bg-tertiary);
    padding: 4px 12px;
    border-radius: 16px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.item-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent-secondary);
    text-decoration: none;
    font-weight: 500;
    margin-top: var(--spacing-sm);
    transition: gap 0.3s ease;
}

.item-link:hover {
    gap: 12px;
}

.item-link.disabled {
    color: var(--text-muted);
    cursor: not-allowed;
}

.portfolio-item.add-item {
    border-style: dashed;
    justify-content: center;
    align-items: center;
    text-align: center;
    min-height: 300px;
}

.add-icon {
    width: 60px;
    height: 60px;
    background: var(--bg-tertiary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
}

.add-icon i {
    font-size: 1.5rem;
    color: var(--text-muted);
}

/* Blog Section */
.blog {
    padding: var(--spacing-xl) 0;
}

.blog-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
    color: var(--text-secondary);
    line-height: 1.8;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.blog-post {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.blog-post.featured {
    grid-column: span 2;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border: 2px solid var(--accent-primary);
}

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

.post-meta {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.post-category {
    background: var(--accent-secondary);
    color: white;
    padding: 4px 12px;
    border-radius: 16px;
}

.blog-post h3 {
    font-size: 1.4rem;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.blog-post p {
    color: var(--text-secondary);
    line-height: 1.8;
    flex-grow: 1;
}

.post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: var(--spacing-sm) 0;
}

.post-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 500;
    margin-top: var(--spacing-sm);
    transition: gap 0.3s ease;
}

.post-link:hover {
    gap: 12px;
}

.post-link.disabled {
    color: var(--text-muted);
    cursor: not-allowed;
}

.blog-post.add-post {
    border-style: dashed;
    justify-content: center;
    align-items: center;
    text-align: center;
}

/* About Section */
.about {
    padding: var(--spacing-xl) 0;
    background: var(--bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.about-text p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.tech-stack {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
}

.tech-item {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: var(--spacing-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.tech-item:hover {
    border-color: var(--accent-secondary);
    transform: translateY(-2px);
}

.tech-item i {
    font-size: 2rem;
    color: var(--accent-secondary);
}

.tech-item span {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.architecture-diagram {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.layer {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: var(--spacing-md);
    text-align: center;
    font-weight: 500;
    transition: all 0.3s ease;
}

.layer:hover {
    border-color: var(--accent-primary);
    transform: translateX(8px);
}

.layer[data-layer="ui"] {
    border-left: 4px solid var(--accent-primary);
}

.layer[data-layer="services"] {
    border-left: 4px solid var(--accent-secondary);
}

.layer[data-layer="orchestration"] {
    border-left: 4px solid var(--accent-tertiary);
}

.layer[data-layer="infrastructure"] {
    border-left: 4px solid var(--accent-gold);
}

/* Footer */
.footer {
    background: var(--bg-tertiary);
    border-top: 1px solid var(--border);
    padding: var(--spacing-lg) 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
}

.footer-logo {
    width: 36px;
    height: 36px;
    object-fit: contain;
}

.footer-links {
    display: flex;
    gap: var(--spacing-md);
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--accent-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--border);
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-subtitle-jp {
    font-size: 0.8rem !important;
    margin-top: 4px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .title-en {
        font-size: 2rem !important;
    }
    
    .services-grid,
    .upcoming-grid,
    .portfolio-grid,
    .blog-grid {
        grid-template-columns: 1fr;
    }
    
    .upcoming-card.featured,
    .blog-post.featured {
        grid-column: span 1;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .tech-stack {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .specs {
        grid-template-columns: 1fr;
    }
    
    .timeline {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .timeline::before {
        width: 2px;
        height: 100%;
        left: 12px;
        top: 0;
    }
    
    .timeline-item {
        flex-direction: row;
        justify-content: flex-start;
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Selection */
::selection {
    background: var(--accent-primary);
    color: white;
}

/* ===== Portfolio Page Styles ===== */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: var(--spacing-md);
}

.portfolio-card.featured {
    grid-column: span 2;
}

.portfolio-card .card-description {
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.project-stats {
    display: flex;
    gap: var(--spacing-md);
    margin: var(--spacing-md) 0;
    padding: var(--spacing-sm);
    background: var(--bg-secondary);
    border-radius: 8px;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.stat-item i {
    color: var(--accent-primary);
}

.card-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: var(--spacing-md);
}

.card-tech span {
    padding: 4px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 12px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.card-links {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: auto;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--accent-primary);
    color: white;
}

.btn-primary:hover {
    background: #9d1f23;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.badge-private, .badge-coming-soon {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.portfolio-card.coming-soon {
    opacity: 0.7;
    border: 2px dashed var(--border);
}

/* ===== Blog Page Styles ===== */
.blog-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.blog-card {
    background: white;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
}

[data-theme="dark"] .blog-card {
    background: var(--bg-secondary);
}

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

.blog-card.featured {
    border-left: 4px solid var(--accent-primary);
}

.blog-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.blog-category {
    padding: 6px 16px;
    background: var(--accent-primary);
    color: white;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.blog-date {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.blog-card h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.blog-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.blog-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border);
}

.read-time {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.blog-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.tag {
    padding: 4px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 12px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.blog-content {
    line-height: 1.8;
}

.blog-content .lead {
    font-size: 1.15rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-sm);
    border-left: 3px solid var(--accent-primary);
}

.blog-content h3 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--accent-primary);
}

.blog-content h4 {
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.blog-content p {
    margin-bottom: var(--spacing-sm);
}

.blog-content ul, .blog-content ol {
    margin-left: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.blog-content li {
    margin-bottom: 8px;
}

.comparison-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.comparison-card {
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.comparison-card h4 {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: var(--spacing-sm);
    color: var(--accent-primary);
}

.warning-box {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: #fff3cd;
    border: 1px solid #ffc107;
    border-radius: 8px;
    margin: var(--spacing-md) 0;
}

[data-theme="dark"] .warning-box {
    background: #3d3118;
    border-color: #d4a574;
}

.warning-box i {
    color: #ff9800;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.blog-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border);
}

.blog-author {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
}

.blog-share {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.blog-share span {
    color: var(--text-muted);
    margin-right: 8px;
}

.blog-share a {
    color: var(--text-secondary);
    transition: color 0.3s ease;
}

.blog-share a:hover {
    color: var(--accent-primary);
}

.blog-excerpt {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.blog-topics {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: 8px;
}

.blog-topics h4 {
    margin-bottom: var(--spacing-sm);
    color: var(--accent-primary);
}

.blog-topics ul {
    margin-left: var(--spacing-md);
}

.blog-card.coming-soon {
    opacity: 0.8;
    border: 2px dashed var(--border);
}

/* Active navigation link */
.nav-links a.active {
    color: var(--accent-primary);
    font-weight: 600;
}

/* Responsive adjustments for new pages */
@media (max-width: 768px) {
    .portfolio-card.featured {
        grid-column: span 1;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .comparison-grid {
        grid-template-columns: 1fr;
    }
    
    .blog-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .blog-footer {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
}

/* Code blocks and examples */
.code-example {
    margin: var(--spacing-md) 0;
    border-radius: 8px;
    overflow: hidden;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
}

.code-example pre {
    margin: 0;
    padding: var(--spacing-md);
    overflow-x: auto;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
    background: #2b2b2b;
    color: #f8f8f2;
}

[data-theme="dark"] .code-example pre {
    background: #1a1a1a;
}

.code-example code {
    font-family: inherit;
    color: inherit;
}

/* Inline code */
code {
    padding: 2px 6px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 4px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9em;
    color: var(--accent-primary);
}

.blog-content a {
    color: var(--accent-primary);
    text-decoration: underline;
    transition: color 0.3s ease;
}

.blog-content a:hover {
    color: var(--accent-secondary);
}

/* Ordered lists */
.blog-content ol {
    margin-left: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.blog-content ol li {
    margin-bottom: var(--spacing-sm);
}

.blog-content ol li strong {
    color: var(--accent-primary);
}

/* ===== Individual Blog Article Pages ===== */
.blog-article {
    padding: var(--spacing-lg) 0;
}

.article-header {
    margin-bottom: var(--spacing-lg);
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    margin-bottom: var(--spacing-md);
    transition: color 0.3s ease;
}

.back-link:hover {
    color: var(--accent-primary);
}

.article-header h1 {
    font-size: 2.5rem;
    line-height: 1.2;
    margin: var(--spacing-md) 0;
    color: var(--text-primary);
}

.article-navigation {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 2px solid var(--border);
}

.nav-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.nav-button:hover {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Responsive article pages */
@media (max-width: 768px) {
    .article-header h1 {
        font-size: 1.8rem;
    }
    
    .article-navigation {
        flex-direction: column;
    }
    
    .nav-button {
        width: 100%;
        justify-content: center;
    }
}

/* ===================== */
/* Blog Tabs Styles      */
/* ===================== */

.blog-tabs-section {
    padding: 60px 0;
    background: var(--bg-primary);
}

.tab-navigation {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
    border-bottom: 2px solid var(--border);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.tab-button {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 16px 24px;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    position: relative;
    margin-bottom: -2px;
}

.tab-button i {
    font-size: 1.2rem;
}

.tab-button:hover {
    color: var(--accent-primary);
    background: var(--bg-secondary);
}

.tab-button.active {
    color: var(--accent-primary);
    border-bottom-color: var(--accent-primary);
}

.tab-content-wrapper {
    position: relative;
    min-height: 500px;
}

.tab-content {
    display: none;
    animation: fadeIn 0.4s ease-in-out;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.blog-article-content {
    max-width: 900px;
    margin: 0 auto;
}

.coming-soon-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 24px;
}

.blog-card.coming-soon {
    opacity: 0.9;
}

/* Responsive tabs */
@media (max-width: 768px) {
    .tab-navigation {
        gap: 8px;
    }
    
    .tab-button {
        padding: 12px 16px;
        font-size: 0.9rem;
    }
    
    .tab-button i {
        font-size: 1rem;
    }
    
    .tab-button span {
        display: none;
    }
    
    .tab-button i + span {
        display: none;
    }
    
    .coming-soon-grid {
        grid-template-columns: 1fr;
    }
}

