/* =========================================================================
   VSO SUPER PAGE — Article/Authority Page Styles
   Inherits from style.css design system
   ========================================================================= */

/* =========================================================================
   READING PROGRESS BAR
   ========================================================================= */
.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--clr-accent-1), var(--clr-accent-2));
    z-index: 1000;
    width: 0%;
    transition: width 0.1s linear;
}

/* =========================================================================
   STICKY CTA BAR
   ========================================================================= */
.sticky-cta-bar {
    position: fixed;
    bottom: -80px;
    left: 0;
    width: 100%;
    z-index: 90;
    background: var(--clr-primary);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 0.75rem 0;
    transition: bottom 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.sticky-cta-bar.visible {
    bottom: 0;
}
.sticky-cta-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--space-lg);
    gap: 1rem;
}
.sticky-cta-text {
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.9rem;
    font-weight: 600;
    font-family: var(--font-heading);
}
.sticky-cta-text i {
    color: var(--clr-accent-2);
    margin-right: 0.3rem;
}
.sticky-cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.65rem 1.8rem;
    background: #fff;
    color: var(--clr-primary);
    font-weight: 700;
    font-family: var(--font-heading);
    font-size: 0.85rem;
    border-radius: 6px;
    transition: transform 0.3s, box-shadow 0.3s;
    white-space: nowrap;
}
.sticky-cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-elevated);
    color: var(--clr-primary);
}

/* =========================================================================
   ARTICLE HERO
   ========================================================================= */
.article-hero {
    padding: calc(var(--space-xl) + 5rem) var(--space-lg) var(--space-xl);
    background: var(--clr-bg-deep);
    border-bottom: var(--hairline-strong);
    position: relative;
}
.article-hero::before {
    content: 'VSO';
    position: absolute;
    top: 50%;
    right: -5vw;
    transform: translateY(-50%);
    font-family: var(--font-heading);
    font-size: 20vw;
    color: rgba(15, 23, 42, 0.025);
    font-weight: 800;
    pointer-events: none;
    line-height: 1;
}
.article-hero-inner {
    max-width: 800px;
}
.article-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.8rem;
    color: var(--clr-text-muted);
    margin-bottom: var(--space-md);
    font-family: var(--font-heading);
    font-weight: 600;
}
.article-breadcrumb a {
    color: var(--clr-text-muted);
    transition: color 0.2s;
}
.article-breadcrumb a:hover {
    color: var(--clr-accent-1);
}
.article-breadcrumb i {
    font-size: 0.7rem;
    opacity: 0.5;
}
.article-hero h1 {
    font-size: clamp(2rem, 4vw, 3.2rem);
    line-height: 1.15;
    margin-bottom: var(--space-sm);
    color: var(--clr-text-main);
    max-width: 700px;
}
.article-hero-sub {
    font-size: 1.15rem;
    color: var(--clr-text-muted);
    line-height: 1.7;
    margin-bottom: var(--space-md);
    max-width: 650px;
}
.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    font-size: 0.8rem;
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--clr-text-muted);
}
.article-meta i {
    margin-right: 0.3rem;
    color: var(--clr-accent-1);
}

/* =========================================================================
   ARTICLE LAYOUT (TOC + CONTENT)
   ========================================================================= */
.article-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: var(--space-lg);
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-lg);
}

/* TOC Sidebar */
.article-toc {
    /* Sticky is handled via JS - no CSS sticky needed */
}
.toc-sticky {
    /* position set by JS scroll handler */
    scrollbar-width: thin;
    scrollbar-color: rgba(37, 99, 235, 0.2) transparent;
}
.toc-sticky::-webkit-scrollbar {
    width: 3px;
}
.toc-sticky::-webkit-scrollbar-thumb {
    background: rgba(37, 99, 235, 0.2);
    border-radius: 3px;
}
.toc-title {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--clr-text-muted);
    margin-bottom: var(--space-sm);
    font-family: var(--font-heading);
}
.toc-nav {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}
.toc-link {
    font-size: 0.8rem;
    color: var(--clr-text-muted);
    padding: 0.35rem 0.75rem;
    border-left: 2px solid transparent;
    transition: all 0.2s;
    font-weight: 500;
    line-height: 1.4;
}
.toc-link:hover {
    color: var(--clr-text-main);
    border-left-color: rgba(37, 99, 235, 0.3);
}
.toc-link.active {
    color: var(--clr-accent-1);
    border-left-color: var(--clr-accent-1);
    font-weight: 700;
}
.toc-cta {
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: var(--hairline);
}
.toc-cta-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.65rem 1rem;
    background: var(--clr-primary);
    color: #fff;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 700;
    font-family: var(--font-heading);
    transition: transform 0.3s, box-shadow 0.3s;
}
.toc-cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-card);
    color: #fff;
}

/* =========================================================================
   ARTICLE CONTENT
   ========================================================================= */
.article-content {
    max-width: 780px;
}
.article-section {
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-lg);
    border-bottom: var(--hairline);
}
.article-section:last-of-type {
    border-bottom: none;
}
.article-section h2 {
    font-size: 1.8rem;
    margin-bottom: var(--space-md);
    color: var(--clr-text-main);
    line-height: 1.2;
}
.article-section h3 {
    font-size: 1.3rem;
    margin: var(--space-md) 0 var(--space-sm);
    color: var(--clr-text-main);
}
.article-section p {
    color: var(--clr-text-muted);
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: var(--space-sm);
}
.article-section ul, .article-section ol {
    color: var(--clr-text-muted);
    margin: 0 0 var(--space-md) 1.5rem;
    line-height: 1.8;
}
.article-section li {
    margin-bottom: 0.4rem;
}
.article-section a {
    color: var(--clr-accent-1);
    font-weight: 600;
    text-decoration: underline;
    text-decoration-color: rgba(37, 99, 235, 0.3);
    text-underline-offset: 3px;
    transition: text-decoration-color 0.2s;
}
.article-section a:hover {
    text-decoration-color: var(--clr-accent-1);
}
.article-section strong {
    color: var(--clr-text-main);
}

/* =========================================================================
   INFO CARDS
   ========================================================================= */
.info-card {
    display: flex;
    gap: var(--space-sm);
    padding: var(--space-md);
    border-radius: 10px;
    margin: var(--space-md) 0;
    border-left: 4px solid;
}
.info-card.blue {
    background: rgba(37, 99, 235, 0.04);
    border-color: var(--clr-accent-1);
}
.info-card.green {
    background: rgba(16, 185, 129, 0.04);
    border-color: #10B981;
}
.info-card.amber {
    background: rgba(245, 158, 11, 0.04);
    border-color: #F59E0B;
}
.info-card-icon {
    font-size: 1.4rem;
    flex-shrink: 0;
    margin-top: 0.2rem;
}
.info-card.blue .info-card-icon { color: var(--clr-accent-1); }
.info-card.green .info-card-icon { color: #10B981; }
.info-card.amber .info-card-icon { color: #F59E0B; }
.info-card-content h4 {
    font-size: 1rem;
    margin-bottom: 0.4rem;
    color: var(--clr-text-main);
}
.info-card-content p {
    font-size: 0.9rem;
    margin-bottom: 0;
}

/* =========================================================================
   STAT HIGHLIGHT
   ========================================================================= */
.stat-highlight {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--clr-primary);
    color: #fff;
    border-radius: 10px;
    margin: var(--space-md) 0;
}
.stat-highlight-number {
    font-family: var(--font-data);
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1;
    color: var(--clr-accent-2);
    flex-shrink: 0;
}
.stat-highlight-text {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.6;
}

/* =========================================================================
   COMPARISON GRID (Danger/Warning/Info Cards)
   ========================================================================= */
.comparison-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
    margin: var(--space-md) 0;
}
.comparison-card {
    padding: var(--space-md);
    border-radius: 10px;
    border: 1px solid rgba(0, 0, 0, 0.06);
    background: var(--clr-bg-panel);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s;
}
.comparison-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
}
.comparison-card.danger { border-top: 3px solid #EF4444; }
.comparison-card.warning { border-top: 3px solid #F59E0B; }
.comparison-card.info { border-top: 3px solid var(--clr-accent-1); }
.comparison-icon {
    font-size: 1.6rem;
    margin-bottom: var(--space-sm);
}
.comparison-card.danger .comparison-icon { color: #EF4444; }
.comparison-card.warning .comparison-icon { color: #F59E0B; }
.comparison-card.info .comparison-icon { color: var(--clr-accent-1); }
.comparison-card h4 {
    font-size: 1.05rem;
    margin-bottom: 0.5rem;
}
.comparison-card p {
    font-size: 0.88rem;
    line-height: 1.6;
    margin-bottom: var(--space-sm);
}
.comparison-stat {
    font-family: var(--font-data);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--clr-text-muted);
}

/* =========================================================================
   CHECKLIST GRID
   ========================================================================= */
.checklist-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    margin: var(--space-md) 0;
}
.checklist-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.65rem 1rem;
    background: var(--clr-bg-panel);
    border: 1px solid rgba(0, 0, 0, 0.04);
    border-radius: 8px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--clr-text-main);
    transition: background 0.2s;
}
.checklist-item:hover {
    background: var(--clr-bg-panel-light);
}
.checklist-item i {
    color: #10B981;
    font-size: 1.1rem;
    flex-shrink: 0;
}

/* =========================================================================
   VSO TOOL EMBED — Attention-Grabbing Interactive Scanner
   ========================================================================= */
.tool-section {
    background: var(--clr-bg-deep);
    padding: var(--space-lg);
    border-radius: 16px;
    margin: var(--space-lg) 0;
    position: relative;
    overflow: hidden;
}
/* Animated gradient glow behind the tool section */
.tool-section::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    border-radius: 18px;
    background: linear-gradient(135deg, #2563eb, #00e5ff, #39ff14, #2563eb);
    background-size: 300% 300%;
    animation: scanner-border-rotate 4s ease infinite;
    z-index: -1;
}
@keyframes scanner-border-rotate {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}
.tool-embed-wrapper {
    margin-top: var(--space-md);
}
.tool-trust-bar {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-sm);
    font-size: 0.78rem;
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--clr-text-muted);
}
.tool-trust-bar i {
    color: #10B981;
    margin-right: 0.3rem;
}
.tool-embed-card {
    background: var(--clr-bg-panel);
    border: 2px solid rgba(37, 99, 235, 0.25);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 0 30px rgba(37, 99, 235, 0.15), 0 0 60px rgba(0, 229, 255, 0.05);
    transition: box-shadow 0.4s, border-color 0.4s;
}
.tool-embed-card:hover {
    border-color: rgba(37, 99, 235, 0.5);
    box-shadow: 0 0 40px rgba(37, 99, 235, 0.25), 0 0 80px rgba(0, 229, 255, 0.1);
}
.tool-embed-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.85rem var(--space-md);
    background: linear-gradient(135deg, var(--clr-primary), #1e40af);
    color: #fff;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    border-bottom: 2px solid rgba(0, 229, 255, 0.3);
}
.tool-embed-header i {
    margin-right: 0.4rem;
}
.tool-badge {
    font-family: var(--font-data);
    font-size: 0.65rem;
    background: rgba(57, 255, 20, 0.2);
    color: #39ff14;
    padding: 0.25rem 0.7rem;
    border-radius: 20px;
    letter-spacing: 0.1em;
    border: 1px solid rgba(57, 255, 20, 0.3);
    animation: pulse-badge 1.5s ease-in-out infinite;
}
@keyframes pulse-badge {
    0%, 100% { opacity: 1; box-shadow: 0 0 6px rgba(57, 255, 20, 0.3); }
    50% { opacity: 0.7; box-shadow: 0 0 12px rgba(57, 255, 20, 0.5); }
}
.tool-embed-body {
    padding: var(--space-lg);
    position: relative;
}
/* Floating scan lines effect */
.tool-embed-body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(0, 229, 255, 0.4), transparent);
    animation: tool-scanline 3s ease-in-out infinite;
}
@keyframes tool-scanline {
    0% { top: 0; opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { top: 100%; opacity: 0; }
}
.tool-start-state {
    text-align: center;
}
.tool-start-icon {
    font-size: 3.5rem;
    color: var(--clr-accent-1);
    margin-bottom: var(--space-sm);
    animation: tool-icon-pulse 2.5s ease-in-out infinite;
}
@keyframes tool-icon-pulse {
    0%, 100% { transform: scale(1); filter: drop-shadow(0 0 8px rgba(37, 99, 235, 0.3)); }
    50% { transform: scale(1.08); filter: drop-shadow(0 0 16px rgba(37, 99, 235, 0.5)); }
}
.tool-start-state h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--clr-text-main);
}
.tool-start-state > p {
    color: var(--clr-text-muted);
    max-width: 500px;
    margin: 0 auto var(--space-md);
    font-size: 1rem;
    line-height: 1.7;
}
.tool-start-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2.8rem;
    background: linear-gradient(135deg, #2563eb, #1e40af);
    color: #fff;
    font-weight: 700;
    font-family: var(--font-heading);
    font-size: 1.05rem;
    border-radius: 10px;
    transition: transform 0.3s, box-shadow 0.3s;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
    position: relative;
    overflow: hidden;
}
.tool-start-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
    animation: btn-shimmer 2.5s infinite;
}
@keyframes btn-shimmer {
    0% { left: -100%; }
    100% { left: 200%; }
}
.tool-start-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.4);
    color: #fff;
}
.tool-start-sub {
    margin-top: var(--space-sm);
    font-size: 0.82rem;
    color: var(--clr-text-muted);
}
.tool-start-sub a {
    color: var(--clr-accent-1);
    font-weight: 600;
}

/* =========================================================================
   FORMULA CARD
   ========================================================================= */
.formula-card {
    background: var(--clr-bg-panel);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 10px;
    padding: var(--space-md);
    margin: var(--space-md) 0;
    border-left: 4px solid var(--clr-accent-1);
}
.formula-label {
    font-family: var(--font-data);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--clr-accent-1);
    font-weight: 700;
    margin-bottom: 0.5rem;
}
.formula-content {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
    color: var(--clr-text-main);
}
.formula-example {
    font-size: 0.9rem;
    color: var(--clr-text-muted);
    line-height: 1.7;
    padding-top: var(--space-sm);
    border-top: var(--hairline);
}

/* =========================================================================
   VSO STRUCTURE LIST
   ========================================================================= */
.vso-structure {
    margin: var(--space-md) 0;
}
.vso-structure-item {
    display: flex;
    gap: var(--space-sm);
    padding: var(--space-sm) 0;
    border-bottom: var(--hairline);
}
.vso-structure-item:last-child {
    border-bottom: none;
}
.vso-num {
    font-family: var(--font-data);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--clr-accent-1);
    min-width: 24px;
    text-align: center;
    flex-shrink: 0;
    padding-top: 0.15rem;
}
.vso-detail h4 {
    font-size: 1rem;
    margin-bottom: 0.3rem;
}
.vso-detail p {
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 0;
}

/* =========================================================================
   NUMBERED LIST
   ========================================================================= */
.numbered-list {
    margin: var(--space-md) 0;
}
.numbered-item {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-md) 0;
    border-bottom: var(--hairline);
}
.numbered-item:last-child {
    border-bottom: none;
}
.numbered-num {
    font-family: var(--font-data);
    font-size: 1.4rem;
    font-weight: 700;
    color: rgba(37, 99, 235, 0.15);
    min-width: 40px;
    flex-shrink: 0;
}
.numbered-content h4 {
    font-size: 1.05rem;
    margin-bottom: 0.3rem;
}
.numbered-content p {
    font-size: 0.92rem;
    line-height: 1.7;
    margin-bottom: 0;
}

/* =========================================================================
   COMPARISON TABLE
   ========================================================================= */
.comparison-table {
    margin: var(--space-md) 0;
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 10px;
    overflow: hidden;
}
.comparison-row {
    display: grid;
    grid-template-columns: 2fr 1.5fr 1fr 1fr;
    gap: 0;
}
.comparison-row > div {
    padding: 0.8rem var(--space-sm);
    border-bottom: var(--hairline);
    font-size: 0.88rem;
    color: var(--clr-text-muted);
}
.comparison-row.header > div {
    background: var(--clr-bg-panel-light);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--clr-text-muted);
}
.comparison-row.highlight > div {
    background: rgba(37, 99, 235, 0.04);
    color: var(--clr-text-main);
    font-weight: 600;
}

/* =========================================================================
   PROS/CONS
   ========================================================================= */
.pros-cons {
    margin: var(--space-md) 0;
}
.cons-list {
    padding: var(--space-md);
    background: rgba(239, 68, 68, 0.03);
    border: 1px solid rgba(239, 68, 68, 0.1);
    border-radius: 10px;
}
.cons-list h4 {
    font-size: 1rem;
    margin-bottom: var(--space-sm);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}
.cons-list h4 i {
    color: #EF4444;
    font-size: 1.2rem;
}
.cons-list ul {
    margin: 0;
    list-style: none;
    padding: 0;
}
.cons-list li {
    position: relative;
    padding-left: 1.3rem;
    padding-bottom: 0.5rem;
    line-height: 1.6;
    font-size: 0.92rem;
    color: var(--clr-text-muted);
}
.cons-list li::before {
    content: '!';
    position: absolute;
    left: 0;
    top: 0.1rem;
    font-weight: 800;
    font-size: 0.7rem;
    color: #EF4444;
    background: rgba(239, 68, 68, 0.1);
    width: 16px;
    height: 16px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* =========================================================================
   TIMELINE VISUAL
   ========================================================================= */
.timeline-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin: var(--space-lg) 0;
    padding: var(--space-md);
    background: var(--clr-bg-panel);
    border-radius: 12px;
    border: 1px solid rgba(0, 0, 0, 0.06);
}
.timeline-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    flex: 0 0 auto;
    padding: 0 var(--space-md);
}
.timeline-dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    margin-bottom: 0.5rem;
}
.timeline-dot.active { background: #10B981; }
.timeline-dot.warning { background: #F59E0B; }
.timeline-dot.danger { background: #EF4444; }
.timeline-label {
    font-family: var(--font-data);
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--clr-text-main);
    margin-bottom: 0.25rem;
}
.timeline-desc {
    font-size: 0.78rem;
    color: var(--clr-text-muted);
    max-width: 160px;
}
.timeline-line {
    flex: 1;
    height: 2px;
    background: linear-gradient(90deg, rgba(37, 99, 235, 0.3), rgba(245, 158, 11, 0.3));
    min-width: 40px;
    margin-bottom: 2rem;
}

/* =========================================================================
   THREE PILLARS
   ========================================================================= */
.three-pillars {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
    margin: var(--space-md) 0;
}
.pillar {
    padding: var(--space-md);
    background: var(--clr-bg-panel);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 10px;
    border-top: 3px solid var(--clr-accent-1);
    transition: transform 0.3s, box-shadow 0.3s;
}
.pillar:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
}
.pillar-num {
    font-family: var(--font-data);
    font-size: 1.5rem;
    font-weight: 700;
    color: rgba(37, 99, 235, 0.15);
    margin-bottom: 0.5rem;
}
.pillar h4 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
}
.pillar p {
    font-size: 0.88rem;
    line-height: 1.6;
    margin-bottom: 0;
}

/* =========================================================================
   ARTICLE FAQ (reuses main style with article-specific tweaks)
   ========================================================================= */
.article-faq .faq-item {
    margin-bottom: 0.5rem;
}

/* =========================================================================
   FINAL CTA
   ========================================================================= */
.article-final-cta {
    background: var(--clr-primary);
    border-radius: 16px;
    padding: var(--space-xl) var(--space-lg);
    text-align: center;
    margin: var(--space-lg) 0;
}
.final-cta-inner h2 {
    color: #fff;
    font-size: 2rem;
    margin-bottom: var(--space-sm);
}
.final-cta-inner p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.1rem;
    margin-bottom: var(--space-md);
}
.final-cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2.5rem;
    background: #fff;
    color: var(--clr-primary);
    font-weight: 700;
    font-family: var(--font-heading);
    font-size: 1rem;
    border-radius: 8px;
    transition: transform 0.3s, box-shadow 0.3s;
    text-decoration: none;
}
.final-cta-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-elevated);
    color: var(--clr-primary);
}
.final-cta-trust {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    margin-top: var(--space-md);
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.6);
    font-family: var(--font-heading);
    font-weight: 600;
}
.final-cta-trust i {
    margin-right: 0.25rem;
    color: rgba(255, 255, 255, 0.4);
}

/* =========================================================================
   RELATED CONTENT
   ========================================================================= */
.related-content {
    margin: var(--space-lg) 0;
}
.related-content h3 {
    font-size: 1.3rem;
    margin-bottom: var(--space-md);
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
}
.related-card {
    padding: var(--space-md);
    background: var(--clr-bg-panel);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 10px;
    transition: transform 0.3s, box-shadow 0.3s;
    text-decoration: none;
}
.related-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
}
.related-icon {
    font-size: 1.5rem;
    color: var(--clr-accent-1);
    margin-bottom: 0.5rem;
}
.related-card h4 {
    font-size: 1rem;
    margin-bottom: 0.3rem;
    color: var(--clr-text-main);
}
.related-card p {
    font-size: 0.85rem;
    color: var(--clr-text-muted);
    line-height: 1.5;
    margin: 0;
}

/* =========================================================================
   RESPONSIVE
   ========================================================================= */
@media (max-width: 1024px) {
    .article-layout {
        grid-template-columns: 1fr;
    }
    .article-toc {
        display: none;
    }
    .comparison-grid,
    .three-pillars {
        grid-template-columns: 1fr;
    }
    .related-grid {
        grid-template-columns: 1fr;
    }
    .comparison-table .comparison-row {
        grid-template-columns: 1fr;
    }
    .comparison-table .comparison-row > div {
        border-right: none;
    }
}

@media (max-width: 768px) {
    .article-hero {
        padding-top: 6rem;
    }
    .article-hero h1 {
        font-size: 1.8rem;
    }
    .article-meta {
        flex-direction: column;
        gap: 0.5rem;
    }
    .article-layout {
        padding: var(--space-sm);
    }
    .article-section h2 {
        font-size: 1.4rem;
    }
    .checklist-grid {
        grid-template-columns: 1fr;
    }
    .stat-highlight {
        flex-direction: column;
        text-align: center;
    }
    .timeline-visual {
        flex-direction: column;
        gap: 0;
    }
    .timeline-line {
        width: 2px;
        height: 30px;
        min-width: unset;
        margin-bottom: 0;
    }
    .sticky-cta-inner {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
        padding: 0 var(--space-sm);
    }
    .sticky-cta-text {
        font-size: 0.8rem;
    }
    .final-cta-trust {
        flex-direction: column;
        gap: 0.5rem;
    }
    .numbered-item {
        flex-direction: column;
        gap: 0.3rem;
    }
    .numbered-num {
        font-size: 1rem;
    }
    .vso-structure-item {
        flex-direction: column;
        gap: 0.3rem;
    }
    .comparison-row {
        grid-template-columns: 1fr !important;
    }
    .comparison-row > div {
        padding: 0.5rem var(--space-sm);
    }
    .comparison-row.header > div:not(:first-child) {
        display: none;
    }
}