/* ============================================
   PORTFOLIO / CASE STUDY STYLES
   ============================================ */

/* Hero Section */
.portfolio-hero {
    padding: calc(80px + var(--spacing-xl)) 0 var(--spacing-xl);
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
}

.portfolio-hero::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(139, 115, 85, 0.08) 0%, transparent 70%);
    border-radius: 50%;
}

[data-theme="dark"] .portfolio-hero::before {
    background: radial-gradient(circle, rgba(212, 165, 116, 0.1) 0%, transparent 70%);
}

.portfolio-hero-content {
    max-width: 800px;
}

.case-study-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--color-primary);
    color: white;
    border-radius: 24px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.portfolio-hero .hero-title {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.portfolio-hero .hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    max-width: 600px;
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    text-decoration: none;
}

a.tag:hover {
    background: var(--color-primary);
    color: white;
}

.tag:hover {
    background: var(--color-primary);
    color: white;
}

.tag svg {
    opacity: 0.7;
}

@media (max-width: 768px) {
    .portfolio-hero .hero-title {
        font-size: 2rem;
    }
}

/* Challenge Section */
.challenge-section {
    background: var(--bg-primary);
}

.challenge-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-md);
}

.challenge-card {
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: 16px;
    border: 1px solid transparent;
    transition: all var(--transition-smooth);
}

.challenge-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-primary);
    box-shadow: 0 8px 24px var(--color-shadow);
}

.challenge-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
}

.challenge-icon svg {
    width: 24px;
    height: 24px;
    color: white;
}

.challenge-card h3 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.challenge-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.challenge-narrative {
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
    text-align: center;
}

.challenge-narrative p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

.challenge-narrative strong {
    color: var(--color-primary);
}

.challenge-narrative em {
    font-style: italic;
}

/* Evolution Section */
.evolution-section {
    background: var(--bg-secondary);
    position: relative;
}

.evolution-timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.evolution-phase {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.phase-marker {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex-shrink: 0;
    width: 50px;
}

.phase-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.1rem;
    color: white;
    position: relative;
    z-index: 2;
}

.phase-past .phase-number {
    background: var(--text-muted);
}

.phase-interim .phase-number {
    background: linear-gradient(135deg, #F59E0B, #D97706);
}

.phase-current .phase-number {
    background: linear-gradient(135deg, #10B981, #059669);
    box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.2);
}

.phase-line {
    width: 3px;
    flex-grow: 1;
    min-height: 40px;
    margin-top: 8px;
}

.phase-past .phase-line {
    background: linear-gradient(180deg, var(--text-muted), #F59E0B);
}

.phase-interim .phase-line {
    background: linear-gradient(180deg, #F59E0B, #10B981);
}

.phase-content {
    flex-grow: 1;
    padding: var(--spacing-md);
    background: var(--bg-primary);
    border-radius: 16px;
    border: 2px solid transparent;
    transition: all var(--transition-smooth);
}

.phase-past .phase-content {
    border-color: var(--bg-tertiary);
    opacity: 0.85;
}

.phase-interim .phase-content {
    border-color: rgba(245, 158, 11, 0.3);
}

.phase-current .phase-content {
    border-color: rgba(16, 185, 129, 0.3);
    box-shadow: 0 4px 20px rgba(16, 185, 129, 0.1);
}

.phase-content:hover {
    transform: translateX(4px);
}

.phase-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

.phase-badge.past {
    background: var(--bg-tertiary);
    color: var(--text-muted);
}

.phase-badge.interim {
    background: rgba(245, 158, 11, 0.15);
    color: #D97706;
}

[data-theme="dark"] .phase-badge.interim {
    background: rgba(245, 158, 11, 0.25);
    color: #FBBF24;
}

.phase-badge.current {
    background: rgba(16, 185, 129, 0.15);
    color: #059669;
}

[data-theme="dark"] .phase-badge.current {
    background: rgba(16, 185, 129, 0.25);
    color: #34D399;
}

.phase-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.phase-description {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.phase-description strong {
    color: var(--text-primary);
}

.phase-description code {
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    font-size: 0.85em;
    padding: 0.15rem 0.4rem;
    background: var(--bg-tertiary);
    border-radius: 4px;
    color: var(--color-primary);
}

/* Phase Flow Diagram */
.phase-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: var(--spacing-sm);
    background: var(--bg-secondary);
    border-radius: 12px;
    margin-bottom: var(--spacing-sm);
}

.flow-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    padding: 0.5rem 0.75rem;
    background: var(--bg-primary);
    border-radius: 8px;
    border: 1px solid var(--bg-tertiary);
}

.flow-step svg {
    color: var(--color-primary);
}

.flow-step span {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
}

.flow-arrow {
    color: var(--color-primary);
    flex-shrink: 0;
}

/* Phase Details */
.phase-details {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.phase-pain,
.phase-win,
.phase-limitation {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-size: 0.85rem;
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
}

.phase-pain {
    background: rgba(239, 68, 68, 0.1);
    color: #DC2626;
}

[data-theme="dark"] .phase-pain {
    background: rgba(239, 68, 68, 0.2);
    color: #FCA5A5;
}

.phase-pain svg {
    color: #DC2626;
    flex-shrink: 0;
    margin-top: 0.1rem;
}

.phase-win {
    background: rgba(16, 185, 129, 0.1);
    color: #059669;
}

[data-theme="dark"] .phase-win {
    background: rgba(16, 185, 129, 0.2);
    color: #6EE7B7;
}

.phase-win svg {
    color: #10B981;
    flex-shrink: 0;
    margin-top: 0.1rem;
}

.phase-win.highlight {
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.phase-limitation {
    background: rgba(245, 158, 11, 0.1);
    color: #B45309;
}

[data-theme="dark"] .phase-limitation {
    background: rgba(245, 158, 11, 0.2);
    color: #FCD34D;
}

.phase-limitation svg {
    color: #F59E0B;
    flex-shrink: 0;
    margin-top: 0.1rem;
}

/* Phase Comparison */
.phase-comparison {
    display: flex;
    align-items: stretch;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.comparison-item {
    flex: 1;
    padding: var(--spacing-sm);
    border-radius: 12px;
}

.comparison-item.before {
    background: var(--bg-secondary);
    border: 1px solid var(--bg-tertiary);
}

.comparison-item.after {
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.comparison-item h4 {
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.comparison-item ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.comparison-item li {
    font-size: 0.8rem;
    color: var(--text-secondary);
    padding: 0.25rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.comparison-item li::before {
    content: '';
    width: 4px;
    height: 4px;
    border-radius: 50%;
    flex-shrink: 0;
}

.comparison-item.before li::before {
    background: var(--text-muted);
}

.comparison-item.after li::before {
    background: #10B981;
}

.comparison-arrow {
    display: flex;
    align-items: center;
    color: var(--color-primary);
}

/* Evolution Insight Box */
.evolution-insight {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: linear-gradient(135deg, rgba(139, 115, 85, 0.08), rgba(212, 165, 116, 0.08));
    border: 2px solid var(--color-primary);
    border-radius: 16px;
    margin-top: var(--spacing-lg);
}

.insight-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.insight-icon svg {
    color: white;
}

.insight-content h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.insight-content p {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .evolution-phase {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .phase-marker {
        flex-direction: row;
        width: auto;
        gap: var(--spacing-sm);
    }

    .phase-line {
        width: 40px;
        height: 3px;
        min-height: auto;
        margin-top: 0;
    }

    .phase-flow {
        flex-direction: column;
    }

    .flow-arrow {
        transform: rotate(90deg);
    }

    .phase-comparison {
        flex-direction: column;
    }

    .comparison-arrow {
        transform: rotate(90deg);
        justify-content: center;
        padding: 0.5rem 0;
    }

    .evolution-insight {
        flex-direction: column;
        text-align: center;
    }

    .insight-icon {
        margin: 0 auto;
    }
}

/* Architecture Section */
.architecture-section {
    background: var(--bg-secondary);
}

.architecture-diagram {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    background: var(--bg-primary);
    border-radius: 24px;
    border: 2px solid var(--bg-tertiary);
    overflow-x: auto;
}

.arch-column {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    min-width: 180px;
}

.arch-column-title {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
}

.arch-node {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--spacing-sm);
    background: var(--bg-secondary);
    border-radius: 12px;
    border: 2px solid var(--bg-tertiary);
    width: 100%;
    transition: all var(--transition-smooth);
}

.arch-node:hover {
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.node-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.5rem;
}

.node-icon svg {
    width: 24px;
    height: 24px;
    color: white;
}

.node-icon.dynamodb { background: linear-gradient(135deg, #3B82F6, #1D4ED8); }
.node-icon.graphql { background: linear-gradient(135deg, #E535AB, #B91C77); }
.node-icon.gdrive { background: linear-gradient(135deg, #34A853, #188038); }
.node-icon.lambda { background: linear-gradient(135deg, #FF9900, #DD6B10); }
.node-icon.postgres { background: linear-gradient(135deg, #336791, #1F4562); }
.node-icon.sheets { background: linear-gradient(135deg, #0F9D58, #0A7340); }

.node-label {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.node-sublabel {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.lambda-main {
    padding: var(--spacing-md);
}

.lambda-details {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: var(--spacing-sm);
    justify-content: center;
}

.lambda-tag {
    font-size: 0.7rem;
    padding: 0.25rem 0.5rem;
    background: rgba(255, 153, 0, 0.15);
    color: var(--color-primary);
    border-radius: 4px;
    font-weight: 500;
}

[data-theme="dark"] .lambda-tag {
    background: rgba(255, 153, 0, 0.25);
}

.processing-triggers {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    width: 100%;
}

.trigger-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    padding: 0.5rem 0.75rem;
    background: var(--bg-tertiary);
    border-radius: 8px;
    color: var(--text-secondary);
}

.trigger-badge svg {
    color: var(--color-primary);
}

.arch-arrows {
    display: flex;
    align-items: center;
    padding-top: 60px;
}

.arrow-container {
    width: 60px;
}

.arrow-svg {
    width: 100%;
    height: 20px;
}

@media (max-width: 968px) {
    .architecture-diagram {
        flex-direction: column;
        align-items: center;
    }

    .arch-column {
        width: 100%;
        max-width: 300px;
    }

    .arch-arrows {
        padding-top: 0;
        transform: rotate(90deg);
    }
}

/* Integrations Section */
.integrations-section {
    background: var(--bg-primary);
}

.integration-card {
    background: var(--bg-secondary);
    border-radius: 20px;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    border: 1px solid transparent;
    transition: all var(--transition-smooth);
}

.integration-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 8px 32px var(--color-shadow);
}

.integration-header {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.integration-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    min-width: 60px;
}

.integration-title-group h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.integration-title-group h3 a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.integration-title-group h3 a:hover {
    color: var(--color-primary);
}

.integration-flow-mini {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.flow-item {
    font-size: 0.8rem;
    padding: 0.25rem 0.75rem;
    background: var(--bg-tertiary);
    border-radius: 6px;
    color: var(--text-secondary);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.flow-item img,
.flow-item svg {
    display: block;
    flex-shrink: 0;
}

.integration-flow-mini svg {
    color: var(--color-primary);
    flex-shrink: 0;
}

.integration-description {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.integration-highlights {
    display: grid;
    gap: var(--spacing-md);
}

.highlight-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--spacing-sm);
}

.highlight-item {
    text-align: center;
    padding: var(--spacing-sm);
    background: var(--bg-primary);
    border-radius: 12px;
    border: 1px solid var(--bg-tertiary);
}

.highlight-value {
    display: block;
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.2;
}

.highlight-label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.highlight-features {
    list-style: none;
    padding: 0;
    display: grid;
    gap: 0.5rem;
}

.highlight-features li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.highlight-features li::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--color-primary);
    border-radius: 50%;
    margin-top: 0.5rem;
    flex-shrink: 0;
}

.highlight-features code {
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    font-size: 0.85em;
    padding: 0.15rem 0.4rem;
    background: var(--bg-tertiary);
    border-radius: 4px;
    color: var(--color-primary);
}

/* VPC Pattern Diagram */
.vpc-pattern-diagram {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    background: var(--bg-primary);
    border-radius: 16px;
    margin-bottom: var(--spacing-md);
    overflow-x: auto;
}

.vpc-node {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--spacing-sm);
    background: var(--bg-secondary);
    border-radius: 12px;
    border: 2px solid var(--bg-tertiary);
    min-width: 120px;
    position: relative;
}

.vpc-badge {
    position: absolute;
    top: -10px;
    right: -10px;
    padding: 0.2rem 0.5rem;
    background: var(--color-primary);
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    border-radius: 4px;
    text-transform: uppercase;
}

.vpc-node-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.5rem;
}

.vpc-node-icon svg {
    color: white;
}

.vpc-node-title {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-primary);
}

.vpc-node-subtitle {
    font-size: 0.7rem;
    color: var(--color-primary);
    font-weight: 500;
}

.vpc-node-detail {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.vpc-arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    color: var(--color-primary);
}

.vpc-arrow-svg {
    width: 60px;
    height: 30px;
}

.vpc-arrow-label {
    font-size: 0.65rem;
    color: var(--text-muted);
    white-space: nowrap;
}

@media (max-width: 768px) {
    .vpc-pattern-diagram {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .vpc-arrow {
        transform: rotate(90deg);
    }

    .vpc-arrow-label {
        transform: rotate(-90deg);
    }

    .integration-header {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

/* Cost Section */
.cost-section {
    background: var(--bg-secondary);
}

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

.cost-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

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

.cost-table {
    background: var(--bg-primary);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--bg-tertiary);
}

.cost-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--bg-tertiary);
}

.cost-row:last-child {
    border-bottom: none;
}

.cost-row.header {
    background: var(--bg-tertiary);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.cost-row.total {
    background: var(--gradient-primary);
    color: white;
    font-weight: 700;
    font-size: 1.1rem;
}

.cost-resource {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.cost-resource svg {
    color: var(--color-primary);
}

.cost-row.total .cost-resource,
.cost-row.total .cost-amount {
    color: white;
}

.cost-amount {
    font-weight: 600;
    font-family: var(--font-display);
    color: var(--text-primary);
}

.cost-optimizations h4 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.optimization-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.optimization-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-primary);
    border-radius: 12px;
    border: 1px solid var(--bg-tertiary);
}

.optimization-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.optimization-icon.savings {
    background: linear-gradient(135deg, #10B981, #059669);
    color: white;
}

.optimization-icon.big-savings {
    background: linear-gradient(135deg, #F59E0B, #D97706);
    color: white;
}

.optimization-text {
    display: flex;
    flex-direction: column;
}

.optimization-text strong {
    font-size: 0.95rem;
    color: var(--text-primary);
}

.optimization-text span {
    font-size: 0.85rem;
    color: var(--text-muted);
}

@media (max-width: 768px) {
    .cost-breakdown {
        grid-template-columns: 1fr;
    }
}

/* Tech Stack Section */
.tech-stack-section {
    background: var(--bg-primary);
}

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

.tech-category {
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: var(--spacing-md);
}

.tech-category-title {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--color-primary);
}

.tech-category-title a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.tech-category-title a:hover {
    color: var(--color-primary);
}

.tech-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.tech-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: var(--bg-primary);
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.tech-item:hover {
    background: var(--color-primary);
    color: white;
}

.tech-item svg {
    color: var(--color-primary);
    transition: color var(--transition-fast);
}

.tech-item:hover svg {
    color: white;
}

/* Results Section */
.results-section {
    background: var(--bg-secondary);
}

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

.result-card {
    background: var(--bg-primary);
    border-radius: 20px;
    padding: var(--spacing-lg);
    border: 2px solid transparent;
    transition: all var(--transition-smooth);
}

.result-card:hover {
    border-color: var(--color-primary);
}

.result-card h4 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.result-card.operational {
    border-left: 4px solid #10B981;
}

.result-card.technical {
    border-left: 4px solid #3B82F6;
}

.result-list {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.result-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.result-list svg {
    color: #10B981;
    flex-shrink: 0;
    margin-top: 0.1rem;
}

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

.achievement-stat {
    text-align: center;
    padding: var(--spacing-sm);
    background: var(--bg-secondary);
    border-radius: 12px;
}

.achievement-stat .stat-value {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: #3B82F6;
    display: block;
}

.achievement-stat .stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.achievement-note {
    font-size: 0.9rem;
    color: var(--text-muted);
    text-align: center;
    font-style: italic;
}

/* Lessons Section */
.lessons-section {
    background: var(--bg-primary);
}

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

.lesson-card {
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: var(--spacing-md);
    position: relative;
    border: 1px solid transparent;
    transition: all var(--transition-smooth);
}

.lesson-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
}

.lesson-number {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    width: 32px;
    height: 32px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.9rem;
    color: white;
}

.lesson-card h4 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
    padding-right: 40px;
}

.lesson-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.lesson-card code {
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    font-size: 0.85em;
    padding: 0.15rem 0.4rem;
    background: var(--bg-tertiary);
    border-radius: 4px;
    color: var(--color-primary);
}

/* Security Section */
.security-section {
    background: var(--bg-secondary);
}

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

.security-card {
    background: var(--bg-primary);
    border-radius: 16px;
    padding: var(--spacing-md);
    border: 1px solid transparent;
    transition: all var(--transition-smooth);
}

.security-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px var(--color-shadow);
}

.security-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #10B981, #059669);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
}

.security-icon svg {
    color: white;
}

.security-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.security-card > p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

.security-features {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.security-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding: 0.35rem 0;
}

.security-features li::before {
    content: '';
    width: 6px;
    height: 6px;
    background: #10B981;
    border-radius: 50%;
    flex-shrink: 0;
}

.security-summary {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.08), rgba(5, 150, 105, 0.08));
    border: 2px solid rgba(16, 185, 129, 0.3);
    border-radius: 16px;
}

.summary-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #10B981, #059669);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.summary-icon svg {
    color: white;
}

.summary-content h4 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.summary-content p {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

.summary-content strong {
    color: #059669;
    font-weight: 600;
}

[data-theme="dark"] .summary-content strong {
    color: #34D399;
}

@media (max-width: 768px) {
    .security-grid {
        grid-template-columns: 1fr;
    }

    .security-summary {
        flex-direction: column;
        text-align: center;
    }

    .summary-icon {
        margin: 0 auto;
    }
}

/* CTA Section */
.cta-section {
    background: var(--gradient-night);
    color: white;
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    color: white;
}

.cta-content p {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    color: rgba(255, 255, 255, 0.8);
}

.cta-content .btn-primary {
    font-size: 1.1rem;
    padding: 1rem 2.5rem;
}

/* ============================================
   DATA PIPELINE VISUALIZATION
   ============================================ */

/* Pipeline Container */
.data-pipeline {
    background: var(--bg-primary);
    border-radius: 20px;
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border: 2px solid var(--bg-tertiary);
    transition: all var(--transition-smooth);
}

.data-pipeline:hover {
    border-color: var(--color-primary);
    box-shadow: 0 8px 32px var(--color-shadow);
}

.data-pipeline.featured {
    border-color: rgba(16, 185, 129, 0.3);
    background: linear-gradient(135deg, var(--bg-primary) 0%, rgba(16, 185, 129, 0.03) 100%);
}

.data-pipeline.featured:hover {
    border-color: rgba(16, 185, 129, 0.5);
    box-shadow: 0 8px 32px rgba(16, 185, 129, 0.15);
}

/* Pipeline Title */
.pipeline-title {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.pipeline-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pipeline-badge.primary {
    background: rgba(139, 115, 85, 0.15);
    color: var(--color-primary);
}

.pipeline-badge.featured {
    background: rgba(16, 185, 129, 0.15);
    color: #059669;
}

[data-theme="dark"] .pipeline-badge.featured {
    background: rgba(16, 185, 129, 0.25);
    color: #34D399;
}

.pipeline-badge.secondary {
    background: var(--bg-tertiary);
    color: var(--text-muted);
}

/* Pipeline Flow */
.pipeline-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: 16px;
    margin-bottom: var(--spacing-sm);
}

/* Pipeline Nodes */
.pipeline-node {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    padding: 0.75rem 1rem;
    background: var(--bg-primary);
    border-radius: 12px;
    border: 2px solid var(--bg-tertiary);
    min-width: 100px;
    transition: all var(--transition-smooth);
}

.pipeline-node:hover {
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.pipeline-node.destination {
    border-color: var(--color-primary);
    background: linear-gradient(135deg, var(--bg-primary) 0%, rgba(139, 115, 85, 0.05) 100%);
}

.pipeline-node img {
    flex-shrink: 0;
}

.pipeline-node-label {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-primary);
    white-space: nowrap;
}

.pipeline-node-detail {
    font-size: 0.7rem;
    color: var(--text-muted);
    white-space: nowrap;
}

/* Pipeline Arrows */
.pipeline-arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.15rem;
    flex-shrink: 0;
}

.pipeline-arrow svg {
    flex-shrink: 0;
}

.arrow-label {
    font-size: 0.65rem;
    color: var(--text-muted);
    font-weight: 500;
    white-space: nowrap;
}

/* Pipeline Stats */
.pipeline-stats {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    padding: var(--spacing-sm) 0;
}

.pipeline-stats .stat {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.pipeline-stats .stat strong {
    color: var(--color-primary);
    font-weight: 700;
}

/* Pipeline Insight */
.pipeline-insight {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: rgba(16, 185, 129, 0.1);
    border-radius: 10px;
    margin-top: var(--spacing-sm);
    font-size: 0.85rem;
    color: #059669;
}

[data-theme="dark"] .pipeline-insight {
    background: rgba(16, 185, 129, 0.2);
    color: #6EE7B7;
}

.pipeline-insight svg {
    flex-shrink: 0;
    color: #10B981;
}

/* Triggers Summary */
.triggers-summary {
    background: var(--bg-primary);
    border-radius: 16px;
    padding: var(--spacing-md);
    border: 1px solid var(--bg-tertiary);
}

.triggers-summary h4 {
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

.trigger-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
}

.trigger-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-secondary);
    border-radius: 10px;
    border: 1px solid var(--bg-tertiary);
    transition: all var(--transition-fast);
}

.trigger-item:hover {
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.trigger-item img {
    flex-shrink: 0;
}

.trigger-item span:not(.trigger-desc) {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-primary);
}

.trigger-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
    padding-left: 0.5rem;
    border-left: 1px solid var(--bg-tertiary);
}

/* Responsive Pipeline Styles */
@media (max-width: 968px) {
    .pipeline-flow {
        gap: 0.75rem;
    }

    .pipeline-node {
        min-width: 85px;
        padding: 0.5rem 0.75rem;
    }

    .pipeline-arrow svg {
        width: 30px;
        height: 15px;
    }
}

@media (max-width: 768px) {
    .pipeline-flow {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .pipeline-node {
        width: 100%;
        max-width: 200px;
        flex-direction: row;
        justify-content: center;
        gap: 0.75rem;
    }

    .pipeline-arrow {
        transform: rotate(90deg);
    }

    .arrow-label {
        transform: rotate(-90deg);
    }

    .pipeline-stats {
        flex-direction: column;
        gap: 0.5rem;
        align-items: center;
    }

    .trigger-list {
        flex-direction: column;
        align-items: stretch;
    }

    .trigger-item {
        justify-content: center;
    }

    .trigger-desc {
        display: none;
    }
}