:root {
    --bg-primary: #f9f8f4;
    /* Warm paper */
    --text-primary: #1a1a1a;
    /* Ink black */
    --text-secondary: #555555;
    /* Pencil gray */
    --accent: #2c3e50;
    /* Muted blue ink */
    --border-color: #dcdbd5;
    --font-sans: 'EB Garamond', Georgia, serif;
    --font-mono: 'EB Garamond', Georgia, serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    /* Slightly tighter for that book feel */
    font-size: 19px;
    text-transform: none;
    /* Remove lowercase enforcement for a more formal feel */
    user-select: none;
    overflow-x: hidden;
    letter-spacing: -0.01em;
}

#mathCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: auto;
    opacity: 0.8;
    z-index: 0;
    cursor: default;
}

.phi-tooltip {
    position: fixed;
    background: var(--text-primary);
    color: var(--bg-primary);
    padding: 0.4rem 0.8rem;
    font-family: var(--font-sans);
    font-size: 0.8rem;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s ease;
    z-index: 1000;
    transform: translateX(-50%);
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 1.5rem 3rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 100;
    background: rgba(249, 248, 244, 0.95);
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(5px);
}

.nav-logo {
    font-family: var(--font-sans);
    font-size: 1.2rem;
    color: var(--text-primary);
    letter-spacing: 2px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 4px;
}

.nav-logo:hover {
    color: var(--text-secondary);
    background: rgba(0, 0, 0, 0.02);
    transform: scale(1.05);
}

.nav-dropdown {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.nav-dropdown.open {
    max-height: 400px;
    padding-top: 1rem;
}

.nav-dropdown a {
    font-family: var(--font-sans);
    font-size: 0.95rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    display: block;
    width: 100%;
    text-align: center;
}

.nav-dropdown a:hover {
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.02);
    transform: translateX(5px);
}

.resume-link {
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid #eee;
    font-weight: 500;
}

.resume-button {
    display: inline-block;
    margin-top: 2.5rem;
    padding: 0.8rem 2rem;
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--text-primary);
    text-decoration: none;
    border: 1px solid var(--text-primary);
    border-radius: 2px;
    /* Sharper corners */
    transition: all 0.3s ease;
    letter-spacing: 0.5px;
    animation: fadeInUp 1s ease 0.4s both;
    position: relative;
    overflow: hidden;
    background: transparent;
}

.resume-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--text-primary);
    transition: left 0.3s ease;
    z-index: -1;
}

.resume-button:hover {
    color: var(--bg-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.resume-button:hover::before {
    left: 0;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--text-primary);
}

/* Hero */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 8rem 2rem 4rem;
    text-align: center;
    position: relative;
    animation: fadeIn 1s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.hero-content {
    max-width: 500px;
    margin: 0 auto;
    text-align: center;
    user-select: none;
}

.hero-image-container {
    position: relative;
    display: inline-block;
    margin-bottom: 2.5rem;
}

.hero-image {
    width: 200px;
    height: 200px;
    object-fit: cover;
    transition: all 0.8s ease;
    border-radius: 50%;
    border: 8px solid #fff;
    background: #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    /* Archival Ink Filter: Grayscale, Sepia, High Contrast, slightly dim */
    filter: grayscale(100%) sepia(20%) contrast(110%) brightness(95%);
}

.hero-image:hover {
    /* Reveal: Full color, normal contrast */
    filter: grayscale(0%) sepia(0%) contrast(100%) brightness(100%);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    transform: scale(1.05);
}

/* Caption style for "Fig 1.1" feel */
.hero-image-caption {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.8rem;
    text-align: center;
    font-style: italic;
}

@keyframes floatImage {

    0%,
    100% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-20px);
    }
}

.quote-source {
    display: block;
    margin-top: 0.5rem;
    font-style: normal;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.quote-author {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.carousel-nav {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 1.5rem;
}

.carousel-btn {
    background: transparent;
    border: none;
    font-family: var(--font-sans);
    font-size: 1.5rem;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    transition: color 0.2s ease;
}

.carousel-btn:hover {
    color: var(--text-primary);
}

.typing-quote {
    font-family: var(--font-sans);
    font-size: 1.4rem;
    color: var(--text-primary);
    line-height: 1.8;
    margin-top: 3rem;
    transition: all 0.3s ease;
    cursor: default;
    font-weight: 500;
    letter-spacing: 0.5px;
    animation: fadeInUp 1s ease 0.3s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.typing-quote:hover {
    color: var(--text-secondary);
    cursor: none;
    transform: scale(1.05);
}

.phi-hint {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 3rem;
    opacity: 0.7;
    animation: fadeInUp 1s ease 0.6s both;
    transition: opacity 0.3s ease;
}

.phi-hint:hover {
    opacity: 1;
}

.quote-author {
    font-style: normal;
    color: var(--text-secondary);
}

.equation-badge {
    display: none;
}

.hero-title {
    font-family: var(--font-sans);
    font-size: 3rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 1rem;
    letter-spacing: -1px;
    animation: fadeInUp 1s ease 0.3s both;
}

.hero-subtitle {
    font-family: var(--font-sans);
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-style: italic;
    line-height: 1.6;
    animation: fadeInUp 1s ease 0.4s both;
}

.hero-affiliations {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease 0.5s both;
}

.affiliation {
    display: inline;
}

.affiliation-divider {
    margin: 0 0.5rem;
    opacity: 0.5;
}

.hero-motto {
    font-family: var(--font-sans);
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-top: 2.5rem;
    opacity: 0.8;
    animation: fadeInUp 1s ease 0.6s both;
}

.math-accent {
    display: none;
}

.hero-equation {
    display: none;
}

.scroll-indicator {
    position: absolute;
    bottom: 3rem;
    font-family: var(--font-sans);
    font-size: 2.5rem;
    color: var(--text-secondary);
    cursor: pointer;
    animation: float 2s ease-in-out infinite;
    transition: all 0.3s ease;
    opacity: 0.7;
}

.scroll-indicator:hover {
    color: var(--text-primary);
    opacity: 1;
    transform: translateY(-5px) scale(1.1);
}

a.scroll-indicator {
    text-decoration: none;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
        opacity: 0.5;
    }

    50% {
        transform: translateY(8px);
        opacity: 1;
    }
}

/* Divider - removed for image background */

/* Sections */
.section {
    padding: 8rem 2rem;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    animation: fadeInUp 0.8s ease both;
}

.section:nth-child(even) {
    animation-delay: 0.1s;
}

.section-header {
    margin-bottom: 3rem;
    text-align: center;
}

.section-number {
    display: none;
}

.section-header h2 {
    font-family: var(--font-sans);
    font-size: 2.5rem;
    font-weight: 500;
    color: var(--text-primary);
    letter-spacing: -0.5px;
    margin-top: 0.5rem;
    transition: color 0.3s ease;
}

.math-small {
    display: none;
}

/* About */
.about-content {
    display: block;
    text-align: left;
    overflow: hidden;
    /* Clear floats */
}

/* About Section Profile Image */
.about-image-container {
    float: left;
    margin-right: 2.5rem;
    margin-bottom: 1.5rem;
}

.about-image {
    width: 320px;
    transition: all 0.8s ease;
    border-radius: 0;
    border: 10px solid #fff;
    background: #fff;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
    /* Archival Ink Filter */
    filter: grayscale(100%) sepia(20%) contrast(110%) brightness(95%);
}

.about-image:hover {
    filter: grayscale(0%) sepia(0%) contrast(100%) brightness(100%);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transform: scale(1.02);
}

.about-image-caption {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.8rem;
    text-align: center;
    font-style: italic;
}

.theorem {
    background: transparent;
    border: none;
    padding: 0;
    margin-bottom: 2rem;
    font-style: italic;
    color: var(--text-secondary);
}

.theorem-label {
    display: none;
}

.about-text p {
    margin-bottom: 2rem;
    color: var(--text-secondary);
    line-height: 2;
    font-size: 1.1rem;
    transition: color 0.3s ease;
}

.proof-box {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-primary);
    margin-top: 2.5rem;
    padding: 1.5rem;
    background: transparent;
    border: 1px solid var(--border-color);
    border-left: 3px solid var(--text-primary);
    border-radius: 0;
    transition: all 0.3s ease;
}

.proof-box:hover {
    background: rgba(0, 0, 0, 0.02);
    transform: none;
    /* No movement */
    box-shadow: none;
}

.proof-qed {
    font-weight: 500;
    margin-right: 0.5rem;
}

.about-stats {
    display: none;
}

/* Skills */
.skills-section {
    display: none;
}

/* Projects */
.projects-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    text-align: center;
}

.project-card {
    background: transparent;
    padding: 2.5rem;
    border: 1px solid var(--border-color);
    text-align: left;
    /* Align text left for academic feel */
    border-radius: 2px;
    transition: all 0.4s ease;
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
    background: #fff;
    /* Distinct card background */
}

.project-card::before {
    display: none;
    /* Remove gradient overlay */
}

.project-card:hover {
    border-left-color: var(--text-primary);
    transform: none;
    /* No movement */
    box-shadow: none;
    background: #fff;
    border: 1px solid var(--text-primary);
}

.project-card:hover::before {
    opacity: 0;
}

.project-index {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.project-card h3 {
    font-family: var(--font-sans);
    font-size: 1.8rem;
    font-weight: 500;
    margin-bottom: 0.8rem;
    text-transform: lowercase;
    transition: color 0.3s ease;
    letter-spacing: -0.3px;
}

.project-card:hover h3 {
    color: var(--text-primary);
}

.project-status {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0.8rem;
}

.status-active {
    color: #2563eb;
    font-weight: 500;
}

.status-complete {
    color: #059669;
    font-weight: 500;
}

.status-paused {
    color: #d97706;
    font-weight: 500;
}

.project-abstract {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.2rem;
    transition: color 0.3s ease;
    font-style: italic;
}

.project-card:hover .project-abstract {
    color: var(--text-primary);
}

.project-specs {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid #f0f0f0;
    transition: border-color 0.3s ease;
}

.project-card:hover .project-specs {
    border-top-color: #ddd;
}

.spec-row {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.3rem;
}

.spec-label {
    color: var(--text-secondary);
    min-width: 120px;
    font-weight: 500;
    text-transform: lowercase;
}

.spec-value {
    color: var(--text-primary);
}

.spec-link {
    color: var(--text-primary);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: all 0.3s ease;
}

.spec-link:hover {
    color: var(--text-secondary);
    border-bottom-color: var(--text-secondary);
}

/* Achievements */
.achievements-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: 700px;
    margin: 0 auto;
}

.achievement-item {
    display: flex;
    gap: 2.5rem;
    align-items: baseline;
    padding: 1.5rem 0;
    border-bottom: 1px solid #eee;
    transition: all 0.3s ease;
}

.achievement-item:last-child {
    border-bottom: none;
}

.achievement-item:hover {
    transform: translateX(5px);
    border-bottom-color: var(--text-primary);
}

.achievement-year {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-secondary);
    min-width: 60px;
    font-weight: 500;
}

.achievement-text {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    transition: color 0.3s ease;
}

.achievement-item:hover .achievement-text {
    color: var(--text-primary);
}

/* Makers Section */
.makers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.maker-card {
    background: #fff;
    padding: 2rem;
    border-radius: 2px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.maker-card::before {
    display: none;
}

.maker-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    /* Minimal shadow */
    border-color: var(--text-primary);
    background: #fff;
}

.maker-card:hover::before {
    display: none;
}

.maker-index {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.8rem;
    font-weight: 500;
}

.maker-card h3 {
    font-family: var(--font-sans);
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 1rem;
    text-transform: lowercase;
    letter-spacing: -0.3px;
    transition: color 0.3s ease;
}

.maker-card:hover h3 {
    color: var(--text-primary);
}

.maker-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 6px;
    margin-bottom: 1.5rem;
    transition: transform 0.3s ease;
    background: rgba(0, 0, 0, 0.05);
}

.maker-card:hover .maker-image {
    transform: scale(1.02);
}

.maker-description {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
    transition: color 0.3s ease;
}

.maker-card:hover .maker-description {
    color: var(--text-primary);
}

.maker-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0.3rem 0.8rem;
    background: rgba(0, 0, 0, 0.05);
    border-radius: 4px;
    color: var(--text-secondary);
    transition: all 0.3s ease;
    text-transform: lowercase;
}

.maker-card:hover .tag {
    background: rgba(0, 0, 0, 0.1);
    color: var(--text-primary);
}

.maker-links {
    display: flex;
    gap: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.maker-link {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
    border-bottom: 1px solid transparent;
}

.maker-link:hover {
    color: var(--text-primary);
    border-bottom-color: var(--text-primary);
}

/* Research Section - Princeton Style */
.research-content {
    max-width: 800px;
    margin: 0 auto;
}

.research-intro {
    margin-bottom: 3rem;
    text-align: center;
    color: var(--text-secondary);
    font-size: 1rem;
    font-style: italic;
}

.research-entries {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.research-entry {
    padding: 2.5rem 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.research-entry:last-child {
    border-bottom: none;
}

.research-entry:hover {
    padding-left: 1rem;
    border-left: 3px solid var(--text-primary);
}

.research-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 0.5rem;
    gap: 2rem;
}

.research-title {
    font-family: var(--font-sans);
    font-size: 1.3rem;
    font-weight: 500;
    color: var(--text-primary);
    text-transform: lowercase;
    letter-spacing: -0.3px;
    flex: 1;
}

.research-year {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
    white-space: nowrap;
}

.research-authors {
    font-family: var(--font-sans);
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-style: italic;
}

.research-abstract {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    text-align: justify;
}

.research-meta {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.research-venue {
    font-weight: 500;
}

.research-type {
    font-style: italic;
}

.research-institutions {
    display: flex;
    align-items: baseline;
    gap: 1rem;
    margin-top: 1.2rem;
    margin-bottom: 0.8rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.institutions-label {
    color: var(--text-secondary);
    font-weight: 500;
    white-space: nowrap;
}

.institutions-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.institution-badge {
    padding: 0.25rem 0.7rem;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: 2px;
    font-size: 0.8rem;
    transition: all 0.3s ease;
    text-transform: lowercase;
}

.institution-badge:hover {
    background: rgba(0, 0, 0, 0.02);
    border-color: var(--text-primary);
    color: var(--text-primary);
}

.research-links {
    display: flex;
    gap: 1.5rem;
    margin-top: 1rem;
}

.research-link {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-primary);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: all 0.3s ease;
    text-transform: lowercase;
}

.research-link:hover {
    border-bottom-color: var(--text-primary);
    color: var(--text-secondary);
}

/* Research Page - Institutional Banner */
.research-institutions-banner {
    margin-bottom: 4rem;
    padding: 2.5rem 2rem;
    border: 1px solid var(--border-color);
    border-left: 3px solid var(--text-primary);
    background: rgba(255, 255, 255, 0.5);
    text-align: center;
}

.research-institutions-banner .banner-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.research-institutions-banner .banner-logos {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2.5rem;
    flex-wrap: wrap;
}

.research-institutions-banner .banner-logo {
    height: 40px;
    width: auto;
    object-fit: contain;
    filter: grayscale(100%) contrast(1.1);
    opacity: 0.6;
}

/* Research Sections */
.research-section {
    margin-bottom: 4rem;
}

.research-section-title {
    font-family: var(--font-sans);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--text-primary);
    text-transform: lowercase;
    margin-bottom: 2rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

/* Research Interests */
.research-interests {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.interest-item {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-secondary);
    padding: 0.6rem 1.2rem;
    border: 1px solid var(--border-color);
    border-radius: 2px;
    background: rgba(255, 255, 255, 0.5);
}

/* Ongoing Work Status */
.research-entry.ongoing {
    border-left: 3px solid var(--text-primary);
    padding-left: 1.5rem;
}

.research-status {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0.3rem 0.8rem;
    background: rgba(0, 0, 0, 0.05);
    border-radius: 2px;
}

/* Collaborations */
.collaborations-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.collaboration-item {
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: 2px;
    background: rgba(255, 255, 255, 0.5);
}

.collaboration-name {
    font-family: var(--font-sans);
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.3rem;
}

.collaboration-role {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Project Carousel */
.project-carousel {
    margin: 2rem 0;
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    background: rgba(0, 0, 0, 0.02);
}

.carousel-container {
    position: relative;
    width: 100%;
    height: 400px;
    overflow: hidden;
}

.carousel-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.carousel-image.active {
    opacity: 1;
}

.carousel-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.9);
}

.carousel-btn {
    background: transparent;
    border: 2px solid var(--text-primary);
    color: var(--text-primary);
    font-size: 1.2rem;
    padding: 0.5rem 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 4px;
    font-family: var(--font-sans);
}

.carousel-btn:hover {
    background: var(--text-primary);
    color: var(--bg-primary);
    transform: scale(1.1);
}

.carousel-dots {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    opacity: 0.4;
}

.dot.active {
    background: var(--text-primary);
    opacity: 1;
    transform: scale(1.2);
}

.dot:hover {
    opacity: 0.7;
}

.log-entry:hover .log-content {
    color: var(--text-primary);
}

/* Contact */
.contact-content {
    text-align: center;
}

.contact-equation {
    display: none;
}

.math-contact {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
}

.contact-item {
    display: flex;
    align-items: baseline;
    gap: 1.5rem;
    text-decoration: none;
    color: var(--text-secondary);
    transition: all 0.3s ease;
    padding: 1rem 1.5rem;
    border-radius: 6px;
    border: 1px solid transparent;
}

.contact-item:hover {
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.02);
    border-color: rgba(0, 0, 0, 0.1);
    transform: translateX(5px);
}

.contact-label {
    font-size: 1rem;
    min-width: 100px;
}

.contact-hint {
    font-size: 0.8rem;
    opacity: 0.5;
}

/* Footer */
.footer {
    padding: 4rem 2rem;
    text-align: center;
    border: none;
}

.footer-content p {
    font-family: var(--font-sans);
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.heart,
.coffee {
    color: var(--text-secondary);
}

.energy-icon {
    display: inline-block;
    height: 2.5em;
    vertical-align: middle;
    transform: rotate(15deg);
    margin-left: 0.5rem;
}

.footer-math {
    font-size: 1rem;
    color: var(--text-secondary);
}

/* Footer Institutions */
.footer-institutions {
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.footer-institutions-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.footer-logos {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.footer-logo {
    height: 32px;
    width: auto;
    object-fit: contain;
    filter: grayscale(100%) contrast(1.1);
    opacity: 0.5;
}

/* Responsive */
@media (max-width: 768px) {
    .nav {
        padding: 1.5rem;
    }

    .nav-links {
        gap: 1.5rem;
    }

    .section {
        padding: 4rem 1.5rem;
    }

    .typing-quote {
        font-size: 1rem;
        white-space: normal;
        width: auto;
        border-right: none;
        animation: fadeIn 1s ease;
    }

    /* Mobile styles for footer institutions */
    .footer-logos {
        gap: 1.2rem;
    }

    .footer-logo {
        height: 26px;
    }

    /* Mobile styles for research page */
    .research-institutions-banner {
        padding: 1.5rem 1rem;
    }

    .research-institutions-banner .banner-label {
        font-size: 0.6rem;
        margin-bottom: 1rem;
    }

    .research-institutions-banner .banner-logos {
        gap: 1.5rem;
    }

    .research-institutions-banner .banner-logo {
        height: 30px;
    }

    .research-interests {
        gap: 1rem;
    }

    .interest-item {
        font-size: 0.85rem;
        padding: 0.5rem 1rem;
    }

    .collaboration-item {
        padding: 1rem;
    }

    @keyframes fadeIn {
        from {
            opacity: 0;
        }

        to {
            opacity: 1;
        }
    }
}


/* Sidenotes for Tufte-style layout */
.sidenote {
    float: right;
    clear: right;
    margin-right: -45%;
    width: 35%;
    margin-top: 0.3rem;
    margin-bottom: 1rem;
    font-size: 0.85rem;
    line-height: 1.4;
    vertical-align: baseline;
    position: relative;
    color: var(--text-secondary);
}

.sidenote-number {
    counter-increment: sidenote-counter;
}

.sidenote-number:after {
    content: counter(sidenote-counter);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    vertical-align: super;
    line-height: 0;
    margin-left: 0.1rem;
    color: var(--accent);
}

.sidenote:before {
    content: counter(sidenote-counter) " ";
    font-family: var(--font-mono);
    font-size: 0.7rem;
    vertical-align: super;
    line-height: 0;
    margin-right: 0.2rem;
    color: var(--accent);
}

body {
    counter-reset: sidenote-counter;
}

@media (max-width: 1300px) {
    .sidenote {
        float: none;
        display: block;
        margin: 1rem 0;
        width: 100%;
        margin-right: 0;
        padding-left: 1rem;
        border-left: 1px solid var(--border-color);
    }
}

@media (max-width: 768px) {
    .about-image-container {
        float: none;
        display: block;
        text-align: center;
        margin-right: 0;
        margin-bottom: 2rem;
    }

    .about-content {
        text-align: center;
    }
}

/* Library Visual Inspirations */
.library-subsection {
    margin-top: 4rem;
    padding-top: 3rem;
    border-top: 1px solid var(--border-color);
}

.subsection-title {
    font-family: var(--font-sans);
    font-size: 1.8rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 1rem;
    letter-spacing: -0.5px;
}

.subsection-intro {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
    font-style: italic;
}

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

.inspiration-item {
    text-align: center;
}

.archival-img {
    width: 100%;
    height: 350px;
    object-fit: cover;
    border: 10px solid #fff;
    background: #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.8s ease;
    /* Archival Ink Filter */
    filter: grayscale(100%) sepia(20%) contrast(110%) brightness(95%);
}

.archival-img:hover {
    filter: grayscale(0%) sepia(0%) contrast(100%) brightness(100%);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    transform: scale(1.02);
}

.inspiration-caption {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 1rem;
    font-style: italic;
}


/* Mobile Interaction Class */
.hero-image.hover-effect,
.archival-img.hover-effect {
    filter: grayscale(0%) sepia(0%) contrast(100%) brightness(100%);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transform: scale(1.02);
}

/* Print Styles */
@media print {

    .nav,
    .footer-math,
    #mathCanvas,
    .hero-image-caption,
    .maker-tags,
    .maker-links,
    #navToggle {
        display: none !important;
    }

    body {
        background: white !important;
        color: black !important;
        font-size: 12pt;
        line-height: 1.5;
    }

    .section {
        padding: 0;
        margin: 2rem 0;
        border: none;
    }

    a {
        text-decoration: none;
        color: black;
    }

    /* Expand links to show URL */
    main a[href^="http"]::after {
        content: " (" attr(href) ")";
        font-size: 0.8em;
        font-family: var(--font-mono);
    }

    .hero-image {
        border: 2px solid #ccc;
        box-shadow: none;
        filter: none !important;
        /* Always show clear image in print */
        max-width: 300px;
    }

    h1,
    h2,
    h3,
    h4 {
        page-break-after: avoid;
        color: black;
    }

    .maker-card,
    .project-card {
        border: 1px solid #ddd;
        page-break-inside: avoid;
    }
}