.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-bg-primary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal, 100);
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.page-loader .loader-icon {
    width: 48px;
    height: 48px;
    color: var(--color-accent);
    margin-bottom: 1rem;
}

.page-loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.breadcrumb {
    margin-bottom: 2rem;
    font-size: 0.9rem;
}

.breadcrumb a {
    color: var(--color-accent);
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.breadcrumb span {
    color: var(--color-text-secondary);
    margin: 0 0.5rem;
}/* ========================================
   PAGE-SPECIFIC STYLES
   ======================================== */

/* --- Learn Layout with Sidebar --- */
.learn-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 3rem;
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    align-items: start;
}

.learn-sidebar {
    position: sticky;
    top: 2rem;
    height: fit-content;
    max-height: calc(100dvh - 4rem);
    overflow-y: auto;
    overflow-x: hidden;
}

.sidebar-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.sidebar-section {
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--color-border);
}

.sidebar-section:last-child {
    border-bottom: none;
}

.sidebar-title {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-tertiary);
    margin-bottom: 1rem;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 0.875rem;
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.9375rem;
    border-radius: var(--radius-md);
    transition: transform 0.2s ease, opacity 0.2s ease, background 0.2s ease;
    border-left: 2px solid transparent;
}

.sidebar-link:hover {
    color: var(--color-primary);
    background: var(--color-bg-secondary);
    border-left-color: var(--color-primary);
    padding-left: 1.125rem;
}

.sidebar-link.active {
    color: var(--color-primary);
    background: var(--color-bg-secondary);
    font-weight: 600;
    border-left-color: var(--color-primary);
}

.sidebar-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.toc-nav-sidebar {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.toc-link {
    display: block;
    padding: 0.5rem 0.75rem;
    color: var(--color-text-tertiary);
    text-decoration: none;
    font-size: 0.875rem;
    border-left: 2px solid transparent;
    transition: transform 0.2s ease, opacity 0.2s ease, background 0.2s ease;
}

.toc-link:hover,
.toc-link.active {
    color: var(--color-primary);
    border-left-color: var(--color-primary);
    padding-left: 1rem;
}

.sidebar-back {
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
}


.learn-article {
    max-width: 800px;
    padding: 0;
}

.learn-article .article-header {
    text-align: left;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
}

.learn-article .article-header h1 {
    text-align: left;
    background: none;
    -webkit-text-fill-color: unset;
    color: var(--color-text-primary);
}

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

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
}

.meta-item i {
    width: 16px;
    height: 16px;
}


.article-navigation {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
}

.nav-card {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1.5rem;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: transform 0.25s ease, opacity 0.25s ease, background 0.25s ease;
}

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

.nav-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-tertiary);
    font-weight: 600;
}

.nav-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

.nav-next {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.05), rgba(139, 92, 246, 0.05));
    border-color: var(--color-primary);
}

.nav-next .nav-label {
    color: var(--color-primary);
}


@media (max-width: 1024px) {
    .learn-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .learn-sidebar {
        position: static;
        max-height: none;
        order: 2;
        margin-top: 3rem;
        padding-top: 3rem;
        border-top: 2px solid var(--color-border);
    }
    
    .learn-article {
        order: 1;
    }
}

/* --- Table of Contents --- */
.toc-nav {
    position: sticky;
    top: 2rem;
    height: fit-content;
    margin-bottom: 2rem;
    z-index: 10;
}

.toc-content {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(8px);
}

.toc-content h2 {
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
    color: var(--color-text-tertiary);
}

.toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.toc-list li {
    margin-bottom: 0.25rem;
}

.toc-list a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    padding: 0.5rem 0.75rem;
    display: block;
    border-radius: var(--radius-md);
    transition: transform var(--transition-fast), opacity var(--transition-fast);
    border-left: 2px solid transparent;
}

.toc-list a:hover {
    color: var(--color-primary);
    background: var(--color-bg-secondary);
    border-left-color: var(--color-primary);
    padding-left: 1rem;
}

.toc-list a:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px var(--color-primary-glow);
}


@media (max-width: 768px) {
    .toc-nav {
        position: static;
        margin-bottom: 2rem;
    }
    
    .toc-content {
        padding: 1.25rem;
        background: var(--color-bg-secondary);
    }
    
    .article-content {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

/* --- Learn Page (Article Layout) --- */
body.page-learn {
    background: var(--color-bg-primary);
    scroll-behavior: smooth;
}

.learn-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0;
}

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

.lead-paragraph {
    font-size: 1.35rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    font-weight: 400;
    margin-bottom: 3rem;
}


.article-links-list {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    margin: 2rem 0;
}

.article-link-card {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 1.75rem;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: inherit;
    transition: transform 0.25s ease, opacity 0.25s ease, background 0.25s ease;
}

.article-link-card:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
    background: var(--color-bg-secondary);
}

.article-link-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
}

.article-link-content {
    flex: 1;
}

.article-link-content h3 {
    margin: 0 0 0.5rem 0;
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

.article-link-content p {
    margin: 0 0 0.75rem 0;
    color: var(--color-text-secondary);
    font-size: 1rem;
    line-height: 1.6;
}

.article-meta {
    display: inline-block;
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
    font-weight: 500;
}


.callout-info {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.05), rgba(139, 92, 246, 0.05));
    border-left-color: var(--color-primary);
}

.callout-info h3 {
    color: var(--color-primary);
}


.learn-cta {
    text-align: center;
    margin: 5rem auto 4rem;
    padding: 3rem 1.5rem;
    border-top: 1px solid var(--color-border);
}

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
}

.article-content {
    max-width: 800px; 
    margin: 0 auto;
    padding: 4rem 1.5rem;
}

.article-header {
    text-align: center;
    margin-bottom: 5rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid var(--color-border);
}

.article-header h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: var(--color-primary);
    letter-spacing: -0.02em;
}

.article-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    max-width: 650px;
    margin: 0 auto;
    line-height: 1.6;
}

.article-body {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-text-primary);
}

.article-section {
    margin-bottom: 4rem;
}

.article-section h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-top: 0;
    margin-bottom: 1.5rem;
    color: var(--color-text-primary);
    letter-spacing: -0.01em;
    position: relative;
    display: inline-block;
}

.article-section h2::after {
    content: '';
    display: block;
    width: 40%;
    height: 4px;
    background: var(--color-primary);
    margin-top: 0.5rem;
    border-radius: 2px;
    opacity: 0.3;
}

.article-section h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
}

.article-body p {
    margin-bottom: 1.5rem;
    color: var(--color-text-secondary);
}

.article-body ul {
    margin: 1.5rem 0;
    padding-left: 1.5rem;
}

.article-body li {
    margin-bottom: 0.75rem;
    position: relative;
    padding-left: 0.5rem;
}

.article-body li::marker {
    color: var(--color-primary);
}

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

.callout-box {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-primary);
    padding: 2rem;
    border-radius: var(--radius-lg);
    margin: 3rem 0;
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.callout-box::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-primary-glow) 0%, transparent 100%);
    opacity: 0.1;
    pointer-events: none;
}

.callout-box h3 {
    margin-top: 0;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.article-footer {
    margin-top: 6rem;
    padding-top: 3rem;
    border-top: 1px solid var(--color-border);
    text-align: center;
}

/* --- 404 Page --- */
.timeline {
    position: relative;
    margin: 3rem 0;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 1rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-accent);
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
    padding-left: 2rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -2rem;
    top: 0.5rem;
    width: 1rem;
    height: 1rem;
    background: var(--color-accent);
    border-radius: 50%;
}

.timeline-year {
    font-weight: bold;
    color: var(--color-accent);
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.timeline-content {
    background: var(--color-bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid var(--color-accent);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.tech-card {
    background: var(--color-bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--color-border);
    transition: var(--transition-base);
    cursor: pointer;
}

.tech-card:hover {
    background: var(--color-bg-elevated);
    border-color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.tech-card h4 {
    margin-bottom: 0.5rem;
    color: var(--color-accent);
}

.tech-card .tech-status {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.tech-card .status-emerging {
    background: var(--color-warning);
    color: white;
}

.tech-card .status-developing {
    background: var(--color-accent);
    color: white;
}

.tech-card .status-future {
    background: var(--color-text-secondary);
    color: white;
}

.vision-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.vision-item {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    color: white;
    padding: 1.5rem;
    border-radius: 8px;
    text-align: center;
}

.vision-item h4 {
    margin-bottom: 0.5rem;
}

.vision-item p {
    margin: 0;
    font-size: 0.9rem;
    opacity: 0.9;
}

.roadmap {
    background: var(--color-bg-secondary);
    border-radius: 8px;
    padding: 2rem;
    margin: 2rem 0;
}

.roadmap h3 {
    margin-bottom: 1rem;
    color: var(--color-accent);
    text-align: center;
}

.roadmap-phase {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--color-border);
}

.roadmap-phase:last-child {
    border-bottom: none;
}

.phase-title {
    font-weight: bold;
    color: var(--color-accent);
    margin-bottom: 0.5rem;
}

.phase-description {
    margin-bottom: 0.5rem;
}

.phase-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.phase-feature {
    background: var(--color-bg-primary);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    border: 1px solid var(--color-border);
}
.method-diagram {
    background: var(--color-bg-secondary);
    border-radius: 8px;
    padding: 2rem;
    margin: 2rem 0;
    text-align: center;
}

.method-diagram h3 {
    margin-bottom: 1rem;
    color: var(--color-accent);
}

.method-diagram p {
    margin-bottom: 1.5rem;
}

.method-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.method-step {
    background: var(--color-bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid var(--color-accent);
}

.method-step h4 {
    margin-bottom: 0.5rem;
    color: var(--color-accent);
}

.method-step .step-number {
    display: inline-block;
    background: var(--color-accent);
    color: var(--color-bg-primary);
    padding: 0.25rem 0.5rem;
    border-radius: 50%;
    font-size: 0.8rem;
    font-weight: bold;
    margin-right: 0.5rem;
}
.tech-diagram {
    background: var(--color-bg-secondary);
    border-radius: 8px;
    padding: 2rem;
    margin: 2rem 0;
    text-align: center;
}

.tech-diagram h3 {
    margin-bottom: 1rem;
    color: var(--color-accent);
}

.protocol-stack {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    margin: 2rem 0;
}

.protocol-layer {
    background: var(--color-bg-secondary);
    padding: 1rem;
    border-radius: 8px;
    border-left: 4px solid var(--color-accent);
}

.protocol-layer h4 {
    margin-bottom: 0.5rem;
    color: var(--color-accent);
}

.protocol-layer .layer-name {
    font-weight: bold;
    display: block;
}

.protocol-layer .layer-desc {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.metric-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.metric-card {
    background: var(--color-bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--color-border);
    transition: var(--transition-base);
    cursor: pointer;
}

.metric-card:hover {
    background: var(--color-bg-elevated);
    border-color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.metric-card h4 {
    margin-bottom: 0.5rem;
    color: var(--color-accent);
}

.metric-card .metric-value {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.metric-card .metric-unit {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.code-example {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 1rem;
    margin: 1rem 0;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9rem;
    overflow-x: auto;
}

.code-example pre {
    margin: 0;
    white-space: pre-wrap;
}
.troubleshoot-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.troubleshoot-card {
    background: var(--color-bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid var(--color-accent);
    transition: var(--transition-base);
    cursor: pointer;
}

.troubleshoot-card:hover {
    background: var(--color-bg-elevated);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.troubleshoot-card h4 {
    margin-bottom: 0.5rem;
    color: var(--color-accent);
}

.troubleshoot-card .issue-type {
    display: inline-block;
    background: var(--color-error);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.solution-steps {
    background: var(--color-bg-secondary);
    border-radius: 8px;
    padding: 1.5rem;
    margin: 1rem 0;
}

.solution-steps ol {
    margin: 0;
    padding-left: 1.5rem;
}

.solution-steps li {
    margin-bottom: 0.5rem;
}

.diagnostic-tool {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 1rem;
    margin: 1rem 0;
}

.diagnostic-tool h4 {
    margin-bottom: 0.5rem;
    color: var(--color-accent);
}

.diagnostic-tool .tool-command {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    padding: 0.5rem;
    border-radius: 4px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9rem;
    margin: 0.5rem 0;
}

.quick-fixes {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
}

.quick-fix {
    background: var(--color-success);
    color: white;
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
}

.quick-fix h4 {
    margin-bottom: 0.5rem;
    color: white;
}

.quick-fix p {
    margin: 0;
    font-size: 0.9rem;
}

.chapter-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 2rem;
}
.chapter-item {
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--color-border);
}
.chapter-item:last-child {
    border-bottom: none;
}
.chapter-item h3 {
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}
.chapter-item h3 a {
    color: var(--color-text-primary);
    text-decoration: none;
    transition: color 0.2s;
}
.chapter-item h3 a:hover {
    color: var(--color-primary);
}
.chapter-item p {
    color: var(--color-text-secondary);
    margin-bottom: 1rem;
}
.chapter-meta {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
    display: flex;
    gap: 1rem;
    align-items: center;
}
.chapter-meta span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}
.chapter-meta i {
    width: 14px;
    height: 14px;
}    }
    
    .article-header h1 {
        font-size: 2.5rem;
    }
    
    .callout-box {
        padding: 1.5rem;
    }
    
    .article-links-list {
        gap: 1rem;
    }
    
    .article-link-card {
        flex-direction: column;
        padding: 1.5rem;
    }
    
    .article-link-icon {
        width: 50px;
        height: 50px;
        font-size: 2rem;
    }
    
    .lead-paragraph {
        font-size: 1.125rem;
    }
}

/* --- Data Tables --- */
.data-table-wrapper {
    overflow-x: auto;
    margin: 2rem 0;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    background: var(--color-bg-elevated);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.data-table thead {
    background: linear-gradient(135deg, 
        var(--color-primary-dim) 0%, 
        var(--color-accent-dim) 100%);
    color: var(--color-text-primary);
}

.data-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 2px solid var(--color-primary);
}

.data-table tbody tr {
    border-bottom: 1px solid var(--color-border);
    transition: background-color var(--transition-base);
}

.data-table tbody tr:hover {
    background: var(--color-bg-secondary);
}

.data-table tbody tr:last-child {
    border-bottom: none;
}

.data-table td {
    padding: 0.875rem 1rem;
    color: var(--color-text-primary);
}

.data-table td:first-child {
    font-weight: 500;
}

.data-table td:nth-child(2),
.data-table td:nth-child(3) {
    font-family: 'Courier New', monospace;
    color: var(--color-accent);
    font-weight: 600;
}

.data-table td:last-child {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}


.conversion-table tbody tr:nth-child(4) {
    background: var(--color-primary-dim);
    font-weight: 600;
}

.conversion-table tbody tr:nth-child(7) {
    background: var(--color-accent-dim);
    font-weight: 600;
}


.conversion-callout {
    text-align: center;
    padding: 1.5rem;
    margin: 1.5rem 0;
}

.conversion-formula {
    font-size: 1.1rem;
    line-height: 1.8;
}

.conversion-formula strong {
    font-size: 1.3rem;
    color: var(--color-primary);
    display: block;
    margin-bottom: 0.5rem;
}


@media (max-width: 768px) {
    .data-table {
        font-size: 0.85rem;
    }
    
    .data-table th,
    .data-table td {
        padding: 0.75rem 0.5rem;
    }
    
    .data-table th {
        font-size: 0.8rem;
    }
}

@media (max-width: 600px) {
    .data-table thead {
        display: none;
    }
    
    .data-table tbody tr {
        display: block;
        margin-bottom: 1rem;
        border: 1px solid var(--color-border);
        border-radius: var(--radius-md);
    }
    
    .data-table td {
        display: flex;
        justify-content: space-between;
        padding: 0.75rem 1rem;
        border-bottom: 1px solid var(--color-border-subtle);
    }
    
    .data-table td:last-child {
        border-bottom: none;
    }
}