/* about/background.css — the career background section of /about/:
   campfire prose, CV, case study, by-the-numbers. Ported from css/main.css
   when the homepage backstory moved here (2026-09-06, level-up plan Phase 1).
   Tokens come from /css/tokens.css. Scoped under .about-background so nothing
   here leaks into the dossier visual system on the same page. */
.about-background { padding: clamp(3rem, 8vw, 6rem) 0; }
.about-background .about-inner { max-width: 72ch; margin: 0 auto; padding: 0 clamp(1rem, 4vw, 2rem); }
.about-background h3 { font-family: var(--font-serif); font-size: 1.6rem; font-weight: 500; margin: 2.5rem 0 1rem; color: var(--color-text); }
.about-background h4 { font-family: var(--font-serif); font-size: 1.15rem; font-weight: 500; margin: 0; color: var(--color-text); }
.about-background p { color: var(--color-text-secondary); line-height: 1.6; }
.about-background a { color: var(--color-ember); }
.about-past { border-top: 1px solid var(--color-border); margin-top: 2.5rem; padding-top: 1.5rem; font-size: .95rem; }

.by-the-numbers {
    padding: var(--space-3xl) var(--space-xl);
    background: linear-gradient(180deg, var(--color-bg) 0%, color-mix(in srgb, var(--color-bg) 92%, var(--color-bark-light)) 100%);
}

.backstory {
    padding: var(--space-4xl) var(--space-xl);
    max-width: var(--max-width);
    margin: 0 auto;
}

.backstory-campfire {
    max-width: 62ch;
    margin-bottom: var(--space-xl);
}

.backstory-campfire-q {
    font-family: var(--font-ui);
    font-style: normal;
    font-size: 1.08rem;
    font-weight: 700;
    color: var(--color-ember);
    margin-bottom: var(--space-md);
}

.backstory-campfire p + p {
    margin-top: var(--space-md);
}

.backstory-intro {
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
}

.about-content {
    max-width: 720px;
    margin: 0 auto;
}

.about-content h2 {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.cv-section {
    margin-bottom: var(--space-2xl);
    padding-bottom: var(--space-2xl);
    border-bottom: 1px solid var(--color-border);
}

.cv-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: var(--space-sm);
}

.cv-header h3 {
    color: var(--color-text);
    font-size: 1.25rem;
}

.cv-duration {
    color: var(--color-brass);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    font-family: var(--font-mono);
}

.cv-role {
    color: var(--color-primary);
    font-weight: 500;
    margin-bottom: var(--space-xs);
}

.cv-scope {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    margin-bottom: var(--space-lg);
}

.cv-highlights {
    list-style: none;
    padding: 0;
}

.cv-highlights li {
    position: relative;
    padding-left: var(--space-lg);
    margin-bottom: var(--space-sm);
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
}

.cv-highlights li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-ember);
}

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

.cv-education h3 {
    margin-bottom: var(--space-sm);
    color: var(--color-text);
}

.cv-education p {
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
}

.cv-footnote {
    margin-top: var(--space-sm);
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    font-style: normal;
}

.numbers-progression {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

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

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

.progression-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    padding: var(--space-lg);
    background: var(--color-bg-elevated);
    border: 1px solid transparent;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.04);
}

.progression-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(201, 168, 106, 0.25);
}

.progression-item .number-value {
    font-size: 30px;
    font-weight: 700;
    color: var(--color-ember);
    font-family: var(--font-mono);
    letter-spacing: -0.02em;
    /* Fixed-width digits so the count-up animation doesn't jitter. */
    font-variant-numeric: tabular-nums;
}

.progression-item .number-context {
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--color-text-muted);
}

.progression-item .number-label {
    font-size: 0.875rem;
    font-style: normal;
    color: var(--color-text-secondary);
    line-height: 1.5;
    margin-top: var(--space-xs);
}

.case-study-section {
    margin-bottom: var(--space-2xl);
}

.case-study-section h3 {
    color: var(--color-text);
    font-size: 1.125rem;
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--color-border);
}

.case-study-section p {
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-bottom: var(--space-md);
}

.case-study-section p:last-child {
    margin-bottom: 0;
}

.case-study-summary {
    text-align: center;
    padding: var(--space-xl);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.case-study-summary p {
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    line-height: 1.7;
    max-width: 600px;
    margin: 0 auto var(--space-lg);
}

.case-study-summary-stats {
    display: flex;
    justify-content: center;
    gap: var(--space-xl);
    margin-bottom: var(--space-lg);
    flex-wrap: wrap;
}

.summary-stat {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

.summary-stat strong {
    color: var(--color-ember);
    font-family: var(--font-mono);
    font-size: 1.125rem;
}

.backstory-full-link {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    letter-spacing: 0.04em;
}

.backstory-full-link a {
    color: var(--color-brass);
    transition: color var(--transition-fast);
}

.backstory-full-link a:hover {
    color: var(--color-ember);
}

@media (max-width: 768px) {
.cv-header {
        flex-direction: column;
        gap: var(--space-xs);
    }
.progression-item .number-value {
        font-size: 1.5rem;
    }
}