/* === Variables === */
:root {
    --color-ink: #1a1a1a;
    --color-ink-light: #4a4a4a;
    --color-ink-muted: #7a7a7a;
    --color-paper: #fafaf8;
    --color-paper-warm: #f5f4f0;
    --color-accent: #2c5282;
    --color-accent-hover: #1a365d;
    --color-border: #e2e1dc;
    
    --font-display: 'IBM Plex Serif', Georgia, serif;
    --font-body: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
    --spacing-2xl: 6rem;
    
    --max-width: 720px;
    --max-width-wide: 900px;
}

/* === Reset & Base === */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 18px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-ink);
    background-color: var(--color-paper);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-align: justify;
    text-justify: inter-word;
}

/* === Typography === */
h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 500;
    line-height: 1.3;
    color: var(--color-ink);
}

h1 {
    font-size: 3rem;
    font-weight: 400;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
    padding-bottom: 0.35rem;
    border-bottom: 1px solid var(--color-border);
}

h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

p {
    margin-bottom: 1.15rem;
}

p:last-child {
    margin-bottom: 0;
}

a {
    color: var(--color-accent);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s ease, color 0.2s ease;
}

a:hover {
    color: var(--color-accent-hover);
    border-bottom-color: var(--color-accent-hover);
}

/* === Navigation === */
.nav {
    position: sticky;
    top: 0;
    background: var(--color-paper);
    border-bottom: 1px solid var(--color-border);
    z-index: 100;
}

.nav-inner {
    max-width: var(--max-width-wide);
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-ink);
    border: none;
}

.nav-logo:hover {
    color: var(--color-accent);
    border: none;
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
    list-style: none;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-ink-light);
    border: none;
    padding: var(--spacing-xs) 0;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--color-ink);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-ink);
    transition: transform 0.3s ease, opacity 0.3s ease;
}

/* === Main Content === */
.main {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md) var(--spacing-xl);
}

/* === Hero Section === */
.hero {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.hero-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-lg);
}

.hero-text {
    flex: 1;
}

.hero-subtitle {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-style: italic;
    color: var(--color-ink-light);
    margin-bottom: var(--spacing-xs);
}

.hero-tagline {
    font-size: 0.95rem;
    color: var(--color-ink-muted);
    letter-spacing: 0.02em;
    margin-bottom: 0;
}

.hero-image {
    flex-shrink: 0;
}

.image-placeholder {
    width: 160px;
    height: 200px;
    background: var(--color-paper-warm);
    border: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-ink-muted);
    font-size: 0.85rem;
}

.hero-image img {
    width: 160px;
    height: auto;
    display: block;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

/* === Sections === */
section {
    margin-bottom: 1.75rem;
}

section:last-of-type {
    margin-bottom: 0;
}

.intro {
    margin-bottom: 1.75rem;
}

.lead {
    font-family: var(--font-display);
    font-size: 1.35rem;
    line-height: 1.6;
    color: var(--color-ink);
    margin-bottom: var(--spacing-sm);
}

.cta {
    font-weight: 500;
    color: var(--color-accent);
}

/* === Contact === */
.contact-list {
    list-style: none;
}

.contact-list li {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border);
}

.contact-list li:first-child {
    padding-top: 0;
}

.contact-label {
    font-weight: 500;
    color: var(--color-ink-muted);
    min-width: 80px;
    font-size: 0.9rem;
}

/* === Quick Links === */
.quick-links {
    background: var(--color-paper-warm);
    padding: var(--spacing-md);
    border-left: 3px solid var(--color-accent);
}

.quick-links p {
    margin: 0;
}

/* === Footer === */
.footer {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

.footer p {
    font-size: 0.85rem;
    color: var(--color-ink-muted);
    margin: 0;
}

/* === Resume Page === */
.resume-header {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.resume-header h1 {
    margin-bottom: var(--spacing-sm);
}

.resume-contact {
    font-size: 0.9rem;
    color: var(--color-ink-muted);
}

.resume-contact a {
    color: var(--color-ink-muted);
}

.resume-contact a:hover {
    color: var(--color-accent);
}

.resume-summary {
    font-family: var(--font-display);
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.resume-section {
    margin-bottom: var(--spacing-xl);
}

.resume-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.skill-group h3 {
    font-size: 0.9rem;
    font-family: var(--font-body);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-ink-muted);
    margin-bottom: var(--spacing-xs);
}

.skill-group p {
    font-size: 0.95rem;
    margin-bottom: 0;
}

.experience-item {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.experience-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.experience-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
}

.experience-title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 500;
}

.experience-date {
    font-size: 0.85rem;
    color: var(--color-ink-muted);
}

.experience-company {
    font-size: 0.95rem;
    color: var(--color-ink-light);
    margin-bottom: var(--spacing-sm);
}

.experience-description p {
    font-size: 0.95rem;
}

.education-item {
    margin-bottom: var(--spacing-md);
}

.education-item:last-child {
    margin-bottom: 0;
}

.education-degree {
    font-family: var(--font-display);
    font-weight: 500;
    font-size: 1.1rem;
}

.education-school {
    color: var(--color-ink-light);
}

.education-honors {
    font-size: 0.9rem;
    font-style: italic;
    color: var(--color-ink-muted);
}

.honors-list {
    list-style: none;
}

.honors-list li {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.honors-list li:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.honor-title {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.honor-description {
    font-size: 0.95rem;
    color: var(--color-ink-light);
    margin-bottom: 0;
}

/* === Research Page === */
.skills-used {
    font-size: 0.85rem;
    color: var(--color-ink-muted);
    font-style: italic;
    margin-bottom: var(--spacing-sm);
}

.publication-details {
    margin-top: var(--spacing-sm);
}

.publication-details summary {
    cursor: pointer;
    font-weight: 500;
    color: var(--color-accent);
    font-size: 0.9rem;
    padding: var(--spacing-xs) 0;
}

.publication-details summary:hover {
    color: var(--color-accent-hover);
}

.publication-details[open] summary {
    margin-bottom: var(--spacing-sm);
}

.publication-details p {
    font-size: 0.9rem;
    color: var(--color-ink-light);
    line-height: 1.6;
    padding-left: var(--spacing-sm);
    border-left: 2px solid var(--color-border);
}

.press-list {
    list-style: none;
    padding-left: var(--spacing-sm);
    border-left: 2px solid var(--color-border);
}

.press-list li {
    margin-bottom: var(--spacing-xs);
}

.press-list li:last-child {
    margin-bottom: 0;
}

.press-list a {
    font-size: 0.9rem;
}

/* === Freelance Page === */
.freelance-services {
    margin-top: var(--spacing-md);
}

.service-item {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-md);
    border-left: 2px solid var(--color-border);
}

.service-item:last-child {
    margin-bottom: 0;
}

.service-item h3 {
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

.service-item p {
    font-size: 0.95rem;
    margin-bottom: 0;
}

.testimonial {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--color-paper-warm);
    border-left: 3px solid var(--color-accent);
}

.featured-testimonial {
    margin-top: 0;
    margin-bottom: var(--spacing-xl);
}

.client-examples {
    font-size: 0.9rem;
    color: var(--color-ink-muted);
    margin-top: var(--spacing-sm);
}

.section-intro {
    color: var(--color-ink-light);
    margin-bottom: var(--spacing-lg);
}

.publication-list {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.publication-list li {
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--color-border);
}

.publication-list li:last-child {
    border-bottom: none;
}

.testimonial p {
    font-family: var(--font-display);
    font-style: italic;
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

.testimonial cite {
    font-family: var(--font-body);
    font-style: normal;
    font-size: 0.85rem;
    color: var(--color-ink-muted);
}

.download-links {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-top: var(--spacing-lg);
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-accent);
    color: white;
    border: none;
    font-weight: 500;
    transition: background 0.2s ease;
}

.download-btn:hover {
    background: var(--color-accent-hover);
    color: white;
    border: none;
}

/* === Compact Layout (Research/Freelance) === */
.page-header-compact {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
}

.page-header-compact h1 {
    margin-bottom: 0;
    font-size: 2.25rem;
}

.header-subtitle {
    font-size: 0.95rem;
    color: var(--color-ink-light);
    margin-top: var(--spacing-xs);
    margin-bottom: 0;
}

.section-compact {
    margin-bottom: 2rem;
}

.section-compact h2 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    padding-bottom: 0.25rem;
}

.section-compact h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-top: 1rem;
    margin-bottom: 0.4rem;
    color: var(--color-ink-light);
}

/* Publication items */
.pub-item {
    margin-bottom: 1.25rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--color-border);
}

.pub-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.pub-item-compact {
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
}

.pub-header {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.pub-title {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--color-accent);
    border: none;
}

.pub-title:hover {
    color: var(--color-accent-hover);
}

span.pub-title {
    color: var(--color-ink);
}

.pub-ungated {
    font-size: 0.7rem;
    font-weight: 500;
    padding: 0.1rem 0.4rem;
    background: var(--color-paper-warm);
    border: 1px solid var(--color-border);
    border-radius: 3px;
    color: var(--color-ink-light);
    text-decoration: none;
    white-space: nowrap;
}

.pub-ungated:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: white;
}

.pub-venue {
    font-size: 0.8rem;
    color: var(--color-ink-muted);
    white-space: nowrap;
    margin-left: auto;
}

.pub-authors {
    font-size: 0.85rem;
    color: var(--color-ink-light);
    margin-bottom: var(--spacing-xs);
}

.pub-description {
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-xs);
}

.pub-meta {
    font-size: 0.8rem;
    color: var(--color-ink-muted);
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-bottom: 0;
}

.pub-methods {
    font-style: italic;
}

.pub-links a {
    font-size: 0.8rem;
}

/* Collapsible sections */
.collapsible-section {
    border: none;
}

.collapsible-section summary {
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: baseline;
    gap: var(--spacing-sm);
}

.collapsible-section summary::-webkit-details-marker {
    display: none;
}

.collapsible-section summary::before {
    content: '▸';
    font-size: 0.8rem;
    color: var(--color-ink-muted);
    transition: transform 0.2s ease;
}

.collapsible-section[open] summary::before {
    transform: rotate(90deg);
}

.collapsible-section summary h2 {
    display: inline;
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.collapse-hint {
    font-size: 0.8rem;
    color: var(--color-ink-muted);
    font-weight: 400;
}

.collapsible-section[open] .collapse-hint {
    display: none;
}

/* Compact lists */
.compact-list {
    list-style: none;
    margin-bottom: 1rem;
}

.compact-list li {
    padding: 0.3rem 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.9rem;
    line-height: 1.5;
}

.compact-list li:last-child {
    border-bottom: none;
}

.list-date,
.list-meta {
    font-size: 0.75rem;
    color: var(--color-ink-muted);
    margin-left: var(--spacing-xs);
}

.list-status {
    font-size: 0.75rem;
    color: var(--color-ink-muted);
    float: right;
}

.list-detail {
    font-size: 0.85rem;
    color: var(--color-ink-light);
}

.subsection-note {
    font-size: 0.85rem;
    color: var(--color-ink-light);
    margin-bottom: var(--spacing-xs);
}

/* Testimonial hero */
.testimonial-hero {
    padding: var(--spacing-md);
    background: var(--color-paper-warm);
    border-left: 3px solid var(--color-accent);
    margin-bottom: var(--spacing-lg);
}

.testimonial-hero p {
    font-family: var(--font-display);
    font-style: italic;
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-xs);
}

.testimonial-hero cite {
    font-family: var(--font-body);
    font-style: normal;
    font-size: 0.8rem;
    color: var(--color-ink-muted);
}

/* Capabilities grid */
.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
}

.capability {
    padding: var(--spacing-sm);
    background: var(--color-paper-warm);
    border-radius: 4px;
}

.capability h3 {
    font-size: 0.9rem;
    font-weight: 600;
    margin: 0 0 var(--spacing-xs) 0;
    color: var(--color-ink);
}

.capability p {
    font-size: 0.85rem;
    line-height: 1.5;
    margin: 0;
    color: var(--color-ink-light);
}

/* Client cards */
.client-card {
    margin-bottom: 1.25rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--color-border);
}

.client-card:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

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

.client-name {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 500;
}

.client-location {
    font-size: 0.8rem;
    color: var(--color-ink-muted);
}

.client-description {
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-xs);
}

.client-quote {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--color-paper-warm);
    border-left: 2px solid var(--color-border);
}

.client-quote p {
    font-family: var(--font-display);
    font-style: italic;
    font-size: 0.85rem;
    line-height: 1.5;
    margin-bottom: 0;
}

.client-quote cite {
    display: block;
    font-family: var(--font-body);
    font-style: normal;
    font-size: 0.75rem;
    color: var(--color-ink-muted);
    margin-top: var(--spacing-xs);
}

/* CTA */
.cta-compact {
    background: var(--color-paper-warm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-left: 3px solid var(--color-accent);
}

.cta-compact p {
    margin: 0;
    font-size: 0.9rem;
}

.cta-prominent {
    margin-top: var(--spacing-lg);
}

/* === Resume Page Compact === */
.header-contact {
    font-size: 0.9rem;
    color: var(--color-ink-muted);
    margin-top: var(--spacing-xs);
}

.header-contact a {
    color: var(--color-ink-muted);
}

.header-contact a:hover {
    color: var(--color-accent);
}

.resume-summary-compact {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--color-ink-light);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.resume-entry {
    margin-bottom: 1.15rem;
    padding-bottom: 1.15rem;
    border-bottom: 1px solid var(--color-border);
}

.resume-entry:last-child {
    border-bottom: none;
    padding-bottom: 0;
    margin-bottom: 0;
}

.resume-entry-slim {
    margin-bottom: 0.85rem;
    padding-bottom: 0.85rem;
}

.resume-entry-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.resume-entry-title {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 500;
}

.resume-entry-meta {
    font-size: 0.8rem;
    color: var(--color-ink-muted);
}

.resume-entry-desc {
    font-size: 0.9rem;
    line-height: 1.5;
    margin-top: var(--spacing-xs);
    margin-bottom: 0;
}

.resume-entry-note {
    font-size: 0.85rem;
    font-style: italic;
    color: var(--color-ink-muted);
    margin-top: 0.15rem;
    margin-bottom: 0;
}

/* PhD-concurrent position shading */
.resume-entry.phd-concurrent {
    background-color: #e8f4f0;
    padding: 0.75rem 1rem;
    margin-left: -1rem;
    margin-right: -1rem;
    border-radius: 4px;
    border-bottom: none;
}

.resume-entry.phd-concurrent:last-child {
    margin-bottom: 0;
}

.experience-legend {
    font-size: 0.85rem;
    color: var(--color-ink-muted);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.legend-swatch {
    display: inline-block;
    width: 1.25rem;
    height: 0.9rem;
    background-color: #e8f4f0;
    border: 1px solid #c8dcd6;
    border-radius: 2px;
    vertical-align: middle;
}

.skills-inline p {
    font-size: 0.9rem;
    margin-bottom: var(--spacing-xs);
    line-height: 1.5;
}

.skills-inline p:last-child {
    margin-bottom: 0;
}

.skills-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem 1.5rem;
}

.skill-category {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    font-size: 0.9rem;
    line-height: 1.4;
}

.skill-label {
    font-weight: 600;
    color: var(--color-ink);
    white-space: nowrap;
    min-width: 5.5rem;
}

.skill-items {
    color: var(--color-ink-light);
}

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

.download-links-top {
    margin-top: 0.75rem;
    margin-bottom: 1.5rem;
}

.download-links-compact {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-top: var(--spacing-md);
    justify-content: center;
}

.download-link {
    font-size: 0.9rem;
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--color-paper-warm);
    border: 1px solid var(--color-border);
    border-radius: 4px;
}

.download-link:hover {
    background: var(--color-accent);
    color: white;
    border-color: var(--color-accent);
}

/* === Home Page Compact === */
.hero-compact {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.hero-content-compact {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-lg);
}

.hero-text-compact h1 {
    margin-bottom: 0;
}

.hero-role {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-style: italic;
    color: var(--color-ink-light);
    margin: var(--spacing-xs) 0;
}

.hero-skills {
    font-size: 0.9rem;
    color: var(--color-ink-muted);
    margin: 0;
}

.intro-text {
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

.intro-text:last-child {
    margin-bottom: 0;
}

.current-items {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.current-item {
    padding: var(--spacing-sm);
    background: var(--color-paper-warm);
    border-radius: 4px;
}

.current-role {
    font-weight: 600;
    font-size: 0.9rem;
}

.current-org {
    font-size: 0.85rem;
    color: var(--color-ink-muted);
    margin-left: var(--spacing-xs);
}

.current-item p {
    font-size: 0.85rem;
    color: var(--color-ink-light);
    margin: var(--spacing-xs) 0 0 0;
}

.role-tags {
    font-size: 0.85rem;
    color: var(--color-ink-muted);
    font-style: italic;
    margin-top: var(--spacing-xs);
}

.contact-compact {
    margin-bottom: var(--spacing-md);
}

.contact-row {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.contact-row a {
    font-size: 0.9rem;
}

.quick-nav {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    padding: var(--spacing-sm) 0;
    border-top: 1px solid var(--color-border);
}

.quick-nav a {
    font-size: 0.9rem;
    font-weight: 500;
}

/* === Placeholder Pages === */
.placeholder-content {
    text-align: center;
    padding: var(--spacing-2xl) 0;
}

.placeholder-content h1 {
    margin-bottom: var(--spacing-md);
}

.placeholder-content p {
    color: var(--color-ink-muted);
    max-width: 480px;
    margin: 0 auto;
}

/* === Responsive === */
@media (max-width: 768px) {
    html {
        font-size: 16px;
    }

    h1 {
        font-size: 2.25rem;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-paper);
        border-bottom: 1px solid var(--color-border);
        flex-direction: column;
        padding: var(--spacing-md);
        gap: 0;
        display: none;
    }

    .nav-links.open {
        display: flex;
    }

    .nav-links li {
        border-bottom: 1px solid var(--color-border);
    }

    .nav-links li:last-child {
        border-bottom: none;
    }

    .nav-links a {
        display: block;
        padding: var(--spacing-sm) 0;
    }

    .hero-content {
        flex-direction: column-reverse;
        text-align: center;
    }

    .hero-image {
        margin: 0 auto;
    }

    .experience-header {
        flex-direction: column;
    }

    .contact-list li {
        flex-direction: column;
        gap: var(--spacing-xs);
    }

    .contact-label {
        min-width: auto;
    }

    .capabilities-grid {
        grid-template-columns: 1fr;
    }

    .pub-header,
    .client-header {
        flex-direction: column;
        gap: 0;
    }

    .pub-venue,
    .client-location {
        margin-top: 0.15rem;
    }

    .list-status {
        float: none;
        display: block;
        margin-top: 0.15rem;
    }

    .resume-entry-header {
        flex-direction: column;
        gap: 0;
    }

    .resume-entry-meta {
        margin-top: 0.15rem;
    }

    .hero-content-compact {
        flex-direction: column-reverse;
        text-align: center;
    }

    .hero-image {
        margin: 0 auto;
    }

    .contact-row {
        justify-content: center;
    }

    .quick-nav {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .main {
        padding: var(--spacing-lg) var(--spacing-sm);
    }

    .nav-inner {
        padding: var(--spacing-sm);
    }

    .resume-grid {
        grid-template-columns: 1fr;
    }
}

/* === Blog === */
.blog-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.blog-entry {
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.blog-entry:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.blog-entry-link {
    display: block;
    border: none;
    padding: var(--spacing-sm);
    margin: calc(-1 * var(--spacing-sm));
    border-radius: 4px;
    transition: background-color 0.2s ease;
}

.blog-entry-link:hover {
    background: var(--color-paper-warm);
    border: none;
}

.blog-entry-title {
    font-size: 1.15rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    padding-bottom: 0;
    border-bottom: none;
}

.blog-entry-date {
    font-size: 0.8rem;
    color: var(--color-ink-muted);
    display: block;
    margin-bottom: var(--spacing-xs);
}

.blog-entry-description {
    font-size: 0.9rem;
    color: var(--color-ink-light);
    margin-bottom: 0;
}

.no-posts {
    color: var(--color-ink-muted);
    font-style: italic;
}

/* Blog post */
.blog-post {
    max-width: var(--max-width);
}

.post-breadcrumb {
    margin-bottom: var(--spacing-md);
}

.post-breadcrumb a {
    font-size: 0.9rem;
    color: var(--color-ink-muted);
    text-decoration: none;
    transition: color 0.15s ease;
}

.post-breadcrumb a:hover {
    color: var(--color-accent);
}

.post-header {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.post-header h1 {
    margin-bottom: var(--spacing-xs);
    font-size: 2.25rem;
}

.post-date {
    font-size: 0.9rem;
    color: var(--color-ink-muted);
}

.post-content {
    margin-bottom: var(--spacing-lg);
}

.post-content h2 {
    font-size: 1.35rem;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.post-content h3 {
    font-size: 1.15rem;
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.post-content p {
    margin-bottom: var(--spacing-md);
}

.post-content ul,
.post-content ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-md);
}

.post-content li {
    margin-bottom: var(--spacing-xs);
}

.post-content pre {
    background: var(--color-paper-warm);
    padding: var(--spacing-sm) var(--spacing-md);
    overflow-x: auto;
    margin-bottom: var(--spacing-md);
    border-radius: 4px;
    font-size: 0.9rem;
    line-height: 1.5;
}

.post-content code {
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    font-size: 0.9em;
}

.post-content pre code {
    background: none;
    padding: 0;
}

.post-content p code {
    background: var(--color-paper-warm);
    padding: 0.15em 0.4em;
    border-radius: 3px;
}

.post-content blockquote {
    margin: var(--spacing-md) 0;
    padding: var(--spacing-sm) var(--spacing-md);
    border-left: 3px solid var(--color-accent);
    background: var(--color-paper-warm);
    font-style: italic;
}

.post-content blockquote p:last-child {
    margin-bottom: 0;
}

.post-content img {
    max-width: var(--max-width-wide);
    width: calc(100% + 180px);
    margin-left: -90px;
    height: auto;
    display: block;
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

@media (max-width: 960px) {
    .post-content img {
        width: 100%;
        margin-left: 0;
    }
}

.post-content table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-md) 0;
    font-size: 0.9rem;
}

.post-content th,
.post-content td {
    padding: var(--spacing-xs) var(--spacing-sm);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.post-content th {
    font-weight: 600;
    background: var(--color-paper-warm);
    border-bottom: 2px solid var(--color-border);
}

.post-content tr:hover {
    background: var(--color-paper-warm);
}

.post-content hr {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: var(--spacing-lg) 0;
}

.post-content strong {
    font-weight: 600;
}

/* Code tabs for language switching */
.code-tabs {
    margin-bottom: var(--spacing-md);
}

.code-tabs .tab-buttons {
    display: flex;
    gap: 0;
    margin-bottom: 0;
    border-bottom: 1px solid var(--color-border);
}

.code-tabs .tab-btn {
    padding: 0.4rem 1rem;
    background: none;
    border: 1px solid var(--color-border);
    border-bottom: none;
    border-radius: 4px 4px 0 0;
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-ink-muted);
    margin-bottom: -1px;
    transition: all 0.15s ease;
}

.code-tabs .tab-btn:hover {
    color: var(--color-ink);
    background: var(--color-paper-warm);
}

.code-tabs .tab-btn.active {
    background: var(--color-paper-warm);
    color: var(--color-ink);
    border-bottom-color: var(--color-paper-warm);
}

.code-tabs .tab-content {
    display: none;
}

.code-tabs .tab-content.active {
    display: block;
}

.code-tabs .tab-content pre {
    margin-top: 0;
    border-radius: 0 4px 4px 4px;
}

.post-footer {
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

.post-footer a {
    font-size: 0.9rem;
    font-weight: 500;
}

/* === Home Page Tighter Spacing === */
.intro {
    line-height: 1.6;
}

.intro p {
    margin-bottom: 0.9rem;
}

.intro .lead {
    margin-bottom: 1rem;
}

.intro ul {
    margin-top: 0.5rem;
    margin-bottom: 1rem;
    padding-left: 1.5rem;
    list-style: none;
}

.intro li {
    margin-bottom: 0.4rem;
    position: relative;
}

.intro li::before {
    content: '—';
    position: absolute;
    left: -1.5rem;
    color: var(--color-ink-muted);
}

.current,
.job-market,
.background,
.contact {
    margin-bottom: 1.75rem;
}

.current p,
.job-market p,
.background p {
    margin-bottom: 0.85rem;
    line-height: 1.6;
}

.current h2,
.job-market h2,
.background h2,
.contact h2 {
    margin-bottom: 0.6rem;
}

.contact-inline {
    margin-bottom: 1.5rem;
}

.contact-inline h2 {
    margin-bottom: 0.5rem;
}

.contact-inline p {
    margin-bottom: 0;
}

/* Education grid */
.education-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.education-item {
    padding: 0.75rem;
    background: var(--color-paper-warm);
    border-radius: 4px;
}

.education-degree {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 0.2rem;
}

.education-school {
    font-size: 0.85rem;
    color: var(--color-ink-muted);
    margin-bottom: 0.3rem;
}

.education-note {
    font-size: 0.8rem;
    font-style: italic;
    color: var(--color-ink-light);
}

@media (max-width: 600px) {
    .education-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}

/* Awards grid */
.awards-grid {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.award-item {
    flex: 1;
    min-width: 140px;
    padding: 0.5rem 0.75rem;
    background: var(--color-paper-warm);
    border-radius: 4px;
}

.award-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-ink);
    line-height: 1.3;
}

.award-org {
    font-size: 0.75rem;
    color: var(--color-ink-muted);
    margin-top: 0.15rem;
}

.award-detail {
    font-size: 0.8rem;
    color: var(--color-ink-light);
    margin-top: 0.25rem;
    line-height: 1.4;
    text-align: left;
}

@media (max-width: 600px) {
    .awards-grid {
        flex-direction: column;
        gap: 0.75rem;
    }
}

/* Projects grid (freelance page) */
.projects-grid {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.project-item {
    flex: 1;
    min-width: 180px;
    padding: 0.75rem;
    background: var(--color-paper-warm);
    border-radius: 4px;
}

.project-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-ink);
    line-height: 1.3;
}

.project-status {
    font-size: 0.75rem;
    color: var(--color-ink-muted);
    margin-top: 0.15rem;
}

.project-detail {
    font-size: 0.8rem;
    color: var(--color-ink-light);
    margin-top: 0.35rem;
    line-height: 1.4;
    text-align: left;
}

@media (max-width: 600px) {
    .projects-grid {
        flex-direction: column;
        gap: 0.75rem;
    }
}