/* =========================================
   BLOG PAGE - Editorial Layout
   ========================================= */

/* Hero */
.blog-hero {
    padding: 160px 0 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.blog-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at 50% 0%, rgba(56, 182, 255, 0.04) 0%, transparent 70%);
    pointer-events: none;
}

.blog-hero .section-heading {
    font-size: clamp(2rem, 4vw, 2.8rem);
    margin-bottom: 0.75rem;
}

.blog-hero .lead {
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.05rem;
}

.blog-hero .blog-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-subtle);
}

.blog-hero .blog-stat {
    text-align: center;
}

.blog-hero .blog-stat-number {
    display: block;
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--accent);
    font-family: var(--font-display);
    letter-spacing: -0.02em;
}

.blog-hero .blog-stat-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-top: 4px;
}

/* Category Filter */
.blog-filters {
    display: flex;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
    padding: 0 0 3rem;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    padding: 8px 20px;
    border-radius: 30px;
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-body);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--accent-dim);
    border-color: var(--accent);
    color: var(--accent);
}

/* ---- Featured Article ---- */
.featured-article {
    position: relative;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 3rem;
    cursor: pointer;
    transition: all var(--transition-smooth);
}

.featured-article:hover {
    border-color: var(--border-hover);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
}

.featured-article .featured-badge {
    position: absolute;
    top: 1.5rem;
    left: 1.5rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--accent);
    color: var(--bg-primary);
    padding: 5px 14px;
    border-radius: 20px;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    z-index: 2;
}

.featured-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 360px;
}

.featured-content {
    padding: 3rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.featured-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(56, 182, 255, 0.01);
    overflow: hidden;
}

.featured-visual::before {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(56, 182, 255, 0.06) 0%, transparent 70%);
    animation: pulse-glow 4s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { opacity: 0.5; transform: scale(0.9); }
    50% { opacity: 1; transform: scale(1.1); }
}

.featured-visual .visual-icon {
    font-size: 6rem;
    color: rgba(56, 182, 255, 0.1);
    z-index: 1;
}

.featured-visual .visual-lines {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(rgba(56, 182, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(56, 182, 255, 0.02) 1px, transparent 1px);
    background-size: 30px 30px;
}

.featured-content .blog-card-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--accent-dim);
    border: 1px solid var(--border-subtle);
    padding: 4px 12px;
    border-radius: 20px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--accent);
    margin-bottom: 1rem;
    width: fit-content;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.featured-content h2 {
    font-size: 1.6rem;
    line-height: 1.3;
    margin-bottom: 1rem;
}

.featured-content .blog-excerpt {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.75;
    margin-bottom: 1.5rem;
}

.featured-content .featured-meta {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-top: auto;
}

.featured-content .featured-author {
    display: flex;
    align-items: center;
    gap: 10px;
}

.featured-author-avatar {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: var(--bg-primary);
    border: 1px solid var(--border-hover);
    object-fit: contain;
    padding: 4px;
}

.featured-author-info span {
    display: block;
}

.featured-author-info .author-name {
    font-size: 0.85rem;
    font-weight: 600;
}

.featured-author-info .author-date {
    color: var(--text-muted);
    font-size: 0.75rem;
}

.featured-read-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-left: auto;
    transition: color var(--transition-fast);
}

.featured-article:hover .featured-read-indicator {
    color: var(--accent);
}

.featured-read-indicator i {
    font-size: 0.65rem;
    transition: transform var(--transition-fast);
}

.featured-article:hover .featured-read-indicator i {
    transform: translateX(3px);
}

/* ---- Blog Grid ---- */
.blog-posts-section {
    padding: 0 0 4rem;
}

.blog-grid-v2 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
}

/* ---- Blog Card ---- */
.blog-card-v2 {
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-subtle);
    overflow: hidden;
    transition: all 0.35s ease;
    display: flex;
    flex-direction: column;
    position: relative;
    cursor: pointer;
}

.blog-card-v2:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.25);
}

/* Category stripe */
.blog-card-v2::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    opacity: 0;
    transition: opacity 0.35s ease;
}

.blog-card-v2:hover::after {
    opacity: 1;
}

.blog-card-v2[data-category="ai"]::after { background: linear-gradient(90deg, #38b6ff, #38b6ff); }
.blog-card-v2[data-category="vuln"]::after { background: linear-gradient(90deg, #f87171, #fb923c); }
.blog-card-v2[data-category="access"]::after { background: linear-gradient(90deg, #a78bfa, #38b6ff); }
.blog-card-v2[data-category="case"]::after { background: linear-gradient(90deg, #fb923c, #f87171); }
.blog-card-v2[data-category="threat"]::after { background: linear-gradient(90deg, #22d3ee, #38b6ff); }

/* Card inner content */
.card-inner {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

/* Tag row */
.card-tag-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
}

.blog-card-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--accent-dim);
    border: 1px solid var(--border-subtle);
    padding: 5px 14px;
    border-radius: 20px;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 500;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.blog-card-tag i {
    font-size: 0.6rem;
}

.card-read-time {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 5px;
}

.card-read-time i {
    color: var(--accent);
    font-size: 0.6rem;
}

/* Card title */
.card-inner h2 {
    font-size: 1.15rem;
    line-height: 1.4;
    margin-bottom: 0.85rem;
    letter-spacing: -0.01em;
    transition: color var(--transition-fast);
}

.blog-card-v2:hover .card-inner h2 {
    color: var(--accent);
}

/* Card excerpt */
.card-inner .blog-excerpt {
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.75;
    margin-bottom: 1.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Card footer */
.card-footer {
    margin-top: auto;
    padding-top: 1.25rem;
    border-top: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-author {
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-author-avatar {
    width: 30px;
    height: 30px;
    border-radius: 8px;
    background: var(--bg-primary);
    border: 1px solid var(--border-subtle);
    object-fit: contain;
    padding: 3px;
}

.card-author-info .author-name {
    display: block;
    font-size: 0.78rem;
    font-weight: 600;
}

.card-author-info .card-date {
    display: block;
    color: var(--text-muted);
    font-size: 0.7rem;
}

.card-arrow {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--accent-dim);
    border: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.35s ease;
}

.card-arrow i {
    font-size: 0.65rem;
    color: var(--text-muted);
    transition: all 0.35s ease;
    transform: rotate(-45deg);
}

.blog-card-v2:hover .card-arrow {
    background: var(--accent);
    border-color: var(--accent);
}

.blog-card-v2:hover .card-arrow i {
    color: var(--bg-primary);
    transform: rotate(0deg);
}

/* ---- Article Modal / Overlay ---- */
.article-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(4, 6, 12, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 1000;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 3rem 1.5rem;
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transition: all 0.35s ease;
}

.article-overlay.active {
    opacity: 1;
    visibility: visible;
}

.article-modal {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    max-width: 720px;
    width: 100%;
    padding: 3rem;
    position: relative;
    transform: translateY(20px) scale(0.98);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.article-overlay.active .article-modal {
    transform: translateY(0) scale(1);
}

.article-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--text-muted);
    font-size: 0.85rem;
    z-index: 2;
}

.article-close:hover {
    background: var(--accent-dim);
    border-color: var(--accent);
    color: var(--accent);
}

/* Modal content styles */
.article-modal .modal-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--accent-dim);
    border: 1px solid var(--border-subtle);
    padding: 5px 14px;
    border-radius: 20px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 1.25rem;
}

.article-modal .modal-tag i {
    font-size: 0.6rem;
}

.article-modal .modal-title {
    font-size: 1.6rem;
    line-height: 1.35;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
    padding-right: 2.5rem;
}

.article-modal .modal-meta {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding-bottom: 1.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-subtle);
}

.article-modal .modal-author {
    display: flex;
    align-items: center;
    gap: 10px;
}

.modal-author-avatar {
    width: 34px;
    height: 34px;
    border-radius: 8px;
    background: var(--bg-primary);
    border: 1px solid var(--border-hover);
    object-fit: contain;
    padding: 4px;
}

.modal-author-info .author-name {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
}

.modal-author-info .modal-date {
    display: block;
    color: var(--text-muted);
    font-size: 0.75rem;
}

.modal-read-time {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 5px;
}

.modal-read-time i {
    color: var(--accent);
    font-size: 0.6rem;
}

/* Article body content */
.article-body {
    font-size: 0.92rem;
    line-height: 1.85;
    color: var(--text-secondary);
}

.article-body p {
    margin-bottom: 1.25rem;
}

.article-body h3 {
    color: var(--accent);
    font-size: 1.05rem;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
    padding-left: 14px;
    border-left: 2px solid var(--accent);
}

.article-body ul {
    margin: 1rem 0 1.5rem 1.25rem;
}

.article-body ul li {
    margin-bottom: 0.65rem;
    list-style: none;
    position: relative;
    padding-left: 18px;
}

.article-body ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
}

.article-body strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* Blog CTA */
.blog-cta {
    padding: 4rem 0;
    text-align: center;
}

.blog-cta-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 3.5rem;
    position: relative;
    overflow: hidden;
}

.blog-cta-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, rgba(56, 182, 255, 0.02) 0%, transparent 50%);
    pointer-events: none;
}

.blog-cta-card h2 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.blog-cta-card p {
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto 1.5rem;
    font-size: 0.95rem;
}

/* Responsive */
@media (max-width: 992px) {
    .featured-inner {
        grid-template-columns: 1fr;
    }
    .featured-visual {
        display: none;
    }
    .featured-content {
        padding: 2.5rem 2rem;
    }
    .blog-grid-v2 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .blog-hero {
        padding: 120px 0 40px;
    }
    .blog-grid-v2 {
        grid-template-columns: 1fr;
    }
    .featured-content h2 {
        font-size: 1.3rem;
    }
    .filter-btn {
        padding: 6px 14px;
        font-size: 0.75rem;
    }
    .blog-cta-card {
        padding: 2.5rem 1.5rem;
    }
    .article-modal {
        padding: 2rem 1.5rem;
        margin: 1rem;
    }
    .article-modal .modal-title {
        font-size: 1.3rem;
    }
    .article-overlay {
        padding: 1.5rem 1rem;
    }
}

@media (max-width: 480px) {
    .blog-hero .blog-stats {
        flex-direction: column;
        gap: 1rem;
    }
    .featured-content .featured-meta {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    .featured-read-indicator {
        margin-left: 0;
    }
    .article-modal .modal-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
}