/**
 * CTFLAB - Blog & Articles
 */

/* ==========================================
   PAGE WRAPPER
   ========================================== */
.blog-page {
    min-height: 100vh;
    padding-top: 80px;
}

/* ==========================================
   ARTICLE HERO
   ========================================== */
.blog-hero {
    padding: 56px 0 48px;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--glass-border);
}

.blog-hero::before {
    content: '';
    position: absolute;
    top: -160px;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(ellipse, rgba(74,222,128,0.1) 0%, transparent 70%);
    pointer-events: none;
}

.blog-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-bottom: 32px;
    position: relative;
}
.blog-breadcrumb a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 150ms;
}
.blog-breadcrumb a:hover { color: var(--primary); }
.blog-breadcrumb-sep { opacity: 0.4; font-size: 0.75rem; }

.blog-hero-content {
    max-width: 820px;
    position: relative;
}

.blog-category {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 5px 14px;
    background: rgba(74,222,128,0.1);
    border: 1px solid rgba(74,222,128,0.3);
    border-radius: 999px;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 20px;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.blog-title {
    font-size: clamp(1.875rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    margin-bottom: 24px;
}

.blog-intro {
    font-size: 1.125rem;
    line-height: 1.75;
    color: var(--text-secondary);
    margin-bottom: 28px;
    max-width: 720px;
}

.blog-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.blog-meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.blog-meta-sep {
    opacity: 0.3;
}

.blog-meta i {
    font-size: 0.8125rem;
    color: var(--primary);
}

/* ==========================================
   LAYOUT (article + sidebar)
   ========================================== */
.blog-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 56px;
    align-items: start;
    padding: 56px 0 96px;
}

@media (max-width: 960px) {
    .blog-layout {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 40px 0 64px;
    }
    .blog-sidebar { order: -1; }
}

/* ==========================================
   SIDEBAR
   ========================================== */
.blog-sidebar {
    position: sticky;
    top: 100px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

@media (max-width: 960px) {
    .blog-sidebar { position: static; }
}

/* TOC */
.blog-toc {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 24px;
    backdrop-filter: blur(12px);
}

.blog-toc-title {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.blog-toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.blog-toc-item a {
    display: block;
    padding: 7px 10px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 8px;
    border-left: 2px solid transparent;
    transition: all 150ms;
    line-height: 1.4;
}

.blog-toc-item a:hover {
    color: var(--primary);
    border-left-color: var(--primary);
    background: rgba(74,222,128,0.06);
    padding-left: 14px;
}

.blog-toc-item.active a {
    color: var(--primary);
    border-left-color: var(--primary);
    background: rgba(74,222,128,0.08);
    padding-left: 14px;
    font-weight: 600;
}

/* Sidebar CTA card */
.blog-cta-card {
    background: linear-gradient(135deg, rgba(74,222,128,0.08) 0%, rgba(34,197,94,0.04) 100%);
    border: 1px solid rgba(74,222,128,0.25);
    border-radius: 16px;
    padding: 24px;
    text-align: center;
}

.blog-cta-card-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(74,222,128,0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 14px;
    font-size: 1.125rem;
    color: var(--primary);
}

.blog-cta-card h3 {
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    line-height: 1.35;
}

.blog-cta-card p {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
}

.blog-cta-card .btn {
    width: 100%;
    justify-content: center;
    font-size: 0.875rem;
    padding: 10px 16px;
}

/* ==========================================
   ARTICLE PROSE (body content)
   ========================================== */
.blog-prose {
    min-width: 0;
}

.blog-section {
    margin-bottom: 56px;
}

.blog-section-title {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--glass-border);
    scroll-margin-top: 110px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.blog-section-title::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 1.2em;
    border-radius: 2px;
    background: var(--gradient-primary);
    flex-shrink: 0;
}

.blog-subsection-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 32px 0 12px;
    scroll-margin-top: 110px;
}

.blog-p {
    font-size: 1rem;
    line-height: 1.85;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

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

.blog-p b {
    color: var(--text-primary);
    font-weight: 600;
}

.blog-ul, .blog-ol {
    padding-left: 0;
    margin: 16px 0 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    list-style: none;
}

.blog-ul li, .blog-ol li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--text-secondary);
    padding: 10px 14px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    transition: border-color 150ms;
}

.blog-ul li:hover, .blog-ol li:hover {
    border-color: rgba(74,222,128,0.3);
}

.blog-ul li::before {
    content: '';
    display: block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--primary);
    margin-top: 7px;
    flex-shrink: 0;
}

.blog-ol {
    counter-reset: blog-counter;
}

.blog-ol li {
    counter-increment: blog-counter;
}

.blog-ol li::before {
    content: counter(blog-counter);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: #fff;
    font-size: 0.6875rem;
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 2px;
}

/* Highlight/callout box */
.blog-callout {
    display: flex;
    gap: 16px;
    padding: 20px 24px;
    background: rgba(74,222,128,0.06);
    border: 1px solid rgba(74,222,128,0.25);
    border-radius: 12px;
    margin: 24px 0;
}

.blog-callout-icon {
    font-size: 1.25rem;
    color: var(--primary);
    flex-shrink: 0;
    margin-top: 2px;
}

.blog-callout-text {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

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

/* Tool grid */
.blog-tool-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin: 20px 0;
}

@media (max-width: 600px) {
    .blog-tool-grid { grid-template-columns: 1fr; }
}

.blog-tool-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    transition: border-color 150ms, transform 150ms;
}

.blog-tool-card:hover {
    border-color: rgba(74,222,128,0.4);
    transform: translateY(-2px);
}

.blog-tool-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: rgba(74,222,128,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    color: var(--primary);
    flex-shrink: 0;
}

.blog-tool-info {
    min-width: 0;
}

.blog-tool-name {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.blog-tool-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ==========================================
   FAQ SECTION
   ========================================== */
.blog-faq {
    margin-bottom: 56px;
}

.blog-faq-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 20px;
}

.blog-faq-item {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 14px;
    overflow: hidden;
    transition: border-color 200ms;
}

.blog-faq-item:hover {
    border-color: rgba(74,222,128,0.3);
}

.blog-faq-question {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-primary);
    padding: 18px 20px 14px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.blog-faq-question i {
    color: var(--primary);
    flex-shrink: 0;
    margin-top: 2px;
}

.blog-faq-answer {
    font-size: 0.9375rem;
    line-height: 1.75;
    color: var(--text-secondary);
    padding: 0 20px 18px 44px;
}

/* ==========================================
   CONCLUSION / CTA BOTTOM
   ========================================== */
.blog-conclusion {
    padding: 40px;
    background: linear-gradient(135deg, rgba(74,222,128,0.07) 0%, var(--glass-bg) 100%);
    border: 1px solid rgba(74,222,128,0.2);
    border-radius: 20px;
    margin-bottom: 40px;
}

.blog-conclusion h2 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 14px;
}

.blog-conclusion p {
    font-size: 0.9375rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.blog-conclusion p:last-child { margin-bottom: 0; }

/* ==========================================
   ARTICLE CTA (bottom)
   ========================================== */
.blog-article-cta {
    padding: 48px 40px;
    text-align: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    margin: 32px 0 48px;
    position: relative;
    overflow: hidden;
}

.blog-article-cta::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 500px;
    height: 250px;
    border-radius: 50%;
    background: radial-gradient(ellipse, rgba(74,222,128,0.1) 0%, transparent 70%);
    pointer-events: none;
}

.blog-article-cta h2 {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    color: var(--text-primary);
    margin-bottom: 10px;
    position: relative;
}

.blog-article-cta p {
    font-size: 1rem;
    color: var(--text-secondary);
    max-width: 480px;
    margin: 0 auto 24px;
    line-height: 1.7;
    position: relative;
}

/* ==========================================
   RELATED ARTICLES
   ========================================== */
.blog-related {
    padding-top: 40px;
    border-top: 1px solid var(--glass-border);
}

.blog-related-title {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.blog-related-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

@media (max-width: 600px) {
    .blog-related-grid { grid-template-columns: 1fr; }
}

.blog-related-card {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 18px 20px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 14px;
    text-decoration: none;
    transition: border-color 150ms, transform 150ms;
}

.blog-related-card:hover {
    border-color: rgba(74,222,128,0.35);
    transform: translateY(-2px);
}

.blog-related-label {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--primary);
}

.blog-related-card h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    margin: 0;
}

.blog-related-card span {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

/* ==========================================
   BLOG INDEX PAGE
   ========================================== */
.blog-index-hero {
    padding: 64px 0 48px;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--glass-border);
}

.blog-index-hero::before {
    content: '';
    position: absolute;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 700px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(ellipse, rgba(74,222,128,0.1) 0%, transparent 70%);
    pointer-events: none;
}

.blog-index-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    margin-bottom: 14px;
    position: relative;
}

.blog-index-subtitle {
    font-size: 1.0625rem;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 540px;
    position: relative;
}

.blog-index-main {
    padding: 56px 0 96px;
}

.blog-index-featured {
    margin-bottom: 48px;
}

.blog-index-section-label {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 20px;
}

/* Featured card */
.blog-card-featured {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    padding: 36px 40px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    text-decoration: none;
    transition: border-color 200ms, transform 200ms;
}

.blog-card-featured:hover {
    border-color: rgba(74,222,128,0.35);
    transform: translateY(-3px);
}

@media (max-width: 720px) {
    .blog-card-featured {
        grid-template-columns: 1fr;
        padding: 28px 24px;
        gap: 24px;
    }
}

.blog-card-featured-visual {
    aspect-ratio: 16/9;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(74,222,128,0.12) 0%, rgba(16,185,129,0.06) 100%);
    border: 1px solid rgba(74,222,128,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3.5rem;
    order: 1;
}

.blog-card-featured-content { order: 0; }

.blog-card-category {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    background: rgba(74,222,128,0.1);
    border: 1px solid rgba(74,222,128,0.25);
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 14px;
    letter-spacing: 0.03em;
}

.blog-card-title {
    font-size: 1.3125rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    line-height: 1.3;
    margin-bottom: 12px;
}

.blog-card-excerpt {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.8125rem;
    color: var(--text-muted);
    flex-wrap: wrap;
}

.blog-card-meta i { color: var(--primary); }

/* Grid cards */
.blog-index-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

@media (max-width: 900px) {
    .blog-index-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
    .blog-index-grid { grid-template-columns: 1fr; }
}

.blog-card {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 24px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    text-decoration: none;
    color: inherit;
    cursor: pointer;
    transition: border-color 200ms, transform 200ms;
}

.blog-card:hover {
    border-color: rgba(74,222,128,0.3);
    transform: translateY(-3px);
}

.blog-card.blog-card-soon {
    opacity: 0.55;
    cursor: default;
    pointer-events: none;
}

.blog-card-visual {
    aspect-ratio: 16/9;
    border-radius: 10px;
    background: linear-gradient(135deg, rgba(74,222,128,0.08) 0%, rgba(16,185,129,0.03) 100%);
    border: 1px solid rgba(74,222,128,0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.blog-card-body {
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex: 1;
}

.blog-card-title-sm {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.4;
    margin: 0;
}

.blog-card-excerpt-sm {
    font-size: 0.875rem;
    line-height: 1.65;
    color: var(--text-secondary);
}

.blog-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-top: auto;
}

.blog-soon-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 10px;
    background: rgba(148,163,184,0.1);
    border: 1px solid rgba(148,163,184,0.2);
    border-radius: 999px;
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--text-muted);
}

/* ==========================================
   ANIMATIONS
   ========================================== */
[data-animate] {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s var(--ease-out-expo, cubic-bezier(0.16,1,0.3,1)),
                transform 0.6s var(--ease-out-expo, cubic-bezier(0.16,1,0.3,1));
}

[data-animate].is-visible {
    opacity: 1;
    transform: translateY(0);
}