/* CSS Variables - Design System */
:root {
    /* Colors */
    --background: hsl(0, 0%, 98%);
    --foreground: hsl(220, 15%, 20%);
    --card: hsl(0, 0%, 100%);
    --card-foreground: hsl(220, 15%, 20%);
    --primary: hsl(214, 95%, 45%);
    --primary-foreground: hsl(0, 0%, 100%);
    --secondary: hsl(220, 13%, 95%);
    --secondary-foreground: hsl(220, 15%, 25%);
    --muted: hsl(220, 13%, 95%);
    --muted-foreground: hsl(220, 9%, 46%);
    --accent: hsl(214, 95%, 45%);
    --accent-foreground: hsl(0, 0%, 100%);
    --border: hsl(220, 13%, 91%);
    --sidebar-bg: hsl(220, 13%, 95%);
    --sidebar-text: hsl(220, 15%, 35%);
    --sidebar-hover: hsl(0, 0%, 100%);
    
    /* Fonts */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-serif: 'Playfair Display', Georgia, serif;
    
    /* Spacing */
    --radius: 0.5rem;
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
    :root {
        --background: hsl(220, 20%, 12%);
        --foreground: hsl(220, 13%, 91%);
        --card: hsl(220, 18%, 15%);
        --card-foreground: hsl(220, 13%, 91%);
        --primary: hsl(214, 95%, 55%);
        --secondary: hsl(220, 16%, 20%);
        --secondary-foreground: hsl(220, 13%, 91%);
        --muted: hsl(220, 16%, 20%);
        --muted-foreground: hsl(220, 9%, 60%);
        --accent: hsl(214, 95%, 55%);
        --border: hsl(220, 16%, 22%);
        --sidebar-bg: hsl(220, 18%, 15%);
        --sidebar-text: hsl(220, 13%, 75%);
        --sidebar-hover: hsl(220, 16%, 20%);
    }
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-sans);
    background-color: var(--background);
    color: var(--foreground);
    line-height: 1.6;
    font-feature-settings: "kern" 1, "liga" 1;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    line-height: 1.2;
    font-weight: 600;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 50;
    padding: 0.5rem;
    border-radius: var(--radius);
    background-color: var(--card);
    border: 1px solid var(--border);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transition: box-shadow 0.2s;
    display: none;
}

.mobile-menu-btn:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.mobile-menu-btn svg {
    width: 1.5rem;
    height: 1.5rem;
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: 18rem;
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease-in-out;
    z-index: 40;
}

/* Profile Section */
.profile-section {
    padding: 2rem;
    border-bottom: 1px solid var(--border);
    text-align: center;
}

.profile-avatar {
    width: 8rem;
    height: 8rem;
    margin: 0 auto 1.5rem;
    border-radius: 50%;
    background: linear-gradient(135deg, hsl(214, 95%, 45%, 0.2), hsl(214, 95%, 45%, 0.2));
    display: flex;
    align-items: center;
    justify-content: center;
}

.avatar-inner {
    width: 7rem;
    height: 7rem;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2.5rem;
    font-family: var(--font-serif);
    font-weight: 600;
}

.avatar-image {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid #FE5C00;
}

.profile-name {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--sidebar-text);
}

.profile-title {
    font-size: 0.875rem;
    color: var(--muted-foreground);
    margin-bottom: 0.25rem;
}

.profile-field {
    font-size: 0.75rem;
    color: var(--muted-foreground);
}

/* Navigation */
.navigation {
    flex: 1;
    padding: 1.5rem;
}

.nav-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--sidebar-text);
    font-weight: 500;
    transition: all 0.2s;
}

.nav-link:hover {
    background-color: var(--sidebar-hover);
}

.nav-link.active {
    background-color: #FE5C00;
    color: var(--primary-foreground);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.nav-link svg {
    width: 1.25rem;
    height: 1.25rem;
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border);
    text-align: center;
}

.sidebar-footer p {
    font-size: 0.75rem;
    color: var(--muted-foreground);
}

.developer-credit {
    margin-top: 0.5rem;
}

.developer-credit a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s;
}

.developer-credit a:hover {
    color: var(--accent);
    text-decoration: underline;
}

/* Mobile Overlay */
.mobile-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 30;
}

.hidden {
    display: none;
}

/* Main Content */
.main-content {
    margin-left: 18rem;
    overflow-y: auto;
}

.content-wrapper {
    min-height: auto;
    padding: 2rem 1.5rem;
}

/* Section Styles */
.section {
    min-height: auto;
    padding: 3rem 1.5rem;
}

#education {
    padding-top: 0;
}

.section-container {
    max-width: 64rem;
    margin: 0 auto;
}

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

.section-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-divider {
    height: 4px;
    width: 5rem;
    background: #FE5C00;
    border-radius: 2px;
}

.section-subtitle {
    margin-top: 1rem;
    color: var(--muted-foreground);
    font-size: 0.9rem;
}

/* About Section */
.about-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.about-card {
    background-color: var(--card);
    border: 1px solid var(--border);
    border-left: 4px solid #FE5C00;
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.3s;
}

.about-card:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.about-info {
    flex: 1;
}

.about-title {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.about-icon {
    width: 1.5rem;
    height: 1.5rem;
    color: var(--primary);
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.about-field {
    font-size: 1rem;
    color: var(--primary);
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.about-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--muted-foreground);
    font-size: 0.875rem;
}

.about-description {
    color: var(--muted-foreground);
    line-height: 1.6;
    margin: 0;
}

.about-description a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s;
}

.about-description a:hover {
    color: var(--accent);
}

/* Education Cards */
.education-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.education-card {
    background-color: var(--card);
    border: 1px solid var(--border);
    border-left: 4px solid #FE5C00;
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.3s;
}

.education-card:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.education-card:hover .degree-title {
    color: #FE5C00;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.degree-info {
    flex: 1;
}

.degree-title {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.degree-icon {
    width: 1.5rem;
    height: 1.5rem;
    color: #FE5C00;
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.degree-field {
    font-size: 1rem;
    color: var(--foreground);
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.degree-period {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--muted-foreground);
    font-size: 0.875rem;
}

.institution-info {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-bottom: 1rem;
    color: var(--muted-foreground);
}

.location-icon {
    width: 1rem;
    height: 1rem;
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.institution-name {
    font-weight: 500;
    color: var(--foreground);
}

.institution-location {
    font-size: 0.875rem;
}

.degree-description {
    color: var(--muted-foreground);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.highlights {
    margin-top: 1rem;
}

.highlights-title {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--foreground);
    margin-bottom: 0.5rem;
}

.highlights-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.highlights-list li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--muted-foreground);
}

.highlights-list li::before {
    content: '';
    width: 0.375rem;
    height: 0.375rem;
    background-color: var(--primary);
    border-radius: 50%;
    flex-shrink: 0;
}

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

.publication-card {
    background-color: var(--card);
    border: 1px solid var(--border);
    border-left: 4px solid #FE5C00;
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: all 0.3s;
}

.publication-card:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.publication-header {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
}

.publication-icon {
    padding: 0.5rem;
    border-radius: var(--radius);
    background-color: hsl(22, 100%, 50%, 0.1);
    color: #FE5C00;
    flex-shrink: 0;
}

.publication-icon svg {
    width: 1.25rem;
    height: 1.25rem;
}

.publication-info {
    flex: 1;
}

.publication-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    transition: color 0.2s;
}

.publication-card:hover .publication-title {
    color: #FE5C00;
}

.publication-authors {
    font-size: 0.875rem;
    color: var(--muted-foreground);
    margin-bottom: 0.5rem;
}

.publication-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.875rem;
    flex-wrap: wrap;
}

.publication-venue {
    font-weight: 500;
    color: var(--foreground);
}

.meta-separator {
    color: var(--muted-foreground);
}

.publication-year {
    color: var(--muted-foreground);
}

.publication-description {
    color: var(--muted-foreground);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.publication-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.tag {
    padding: 0.25rem 0.5rem;
    background-color: var(--secondary);
    color: var(--secondary-foreground);
    border-radius: calc(var(--radius) * 0.5);
    font-size: 0.75rem;
    font-weight: 500;
}

.publication-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    padding-top: 0.5rem;
}

.publication-link {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s;
}

.publication-link:hover {
    color: hsl(214, 95%, 35%);
}

.publication-link svg {
    width: 0.875rem;
    height: 0.875rem;
}

/* Badges */
.badge {
    padding: 0.125rem 0.5rem;
    border-radius: calc(var(--radius) * 0.5);
    font-size: 0.75rem;
    font-weight: 500;
}

.badge-published {
    background-color: #FE5C00;
    color: var(--primary-foreground);
}

.badge-review {
    background-color: var(--secondary);
    color: var(--secondary-foreground);
}

.badge-outline {
    border: 1px solid var(--border);
    background-color: transparent;
    color: var(--foreground);
}

/* Awards Card */
.awards-card {
    margin-top: 3rem;
    padding: 2rem;
    background: linear-gradient(135deg, hsl(214, 95%, 45%, 0.05), hsl(214, 95%, 45%, 0.05));
    border: 1px solid hsl(214, 95%, 45%, 0.2);
    border-radius: var(--radius);
}

.awards-header {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.awards-icon {
    padding: 0.75rem;
    border-radius: var(--radius);
    background-color: hsl(214, 95%, 45%, 0.1);
    color: var(--primary);
}

.awards-icon svg {
    width: 1.5rem;
    height: 1.5rem;
}

.awards-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.awards-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.awards-list li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--muted-foreground);
}

.awards-list li::before {
    content: '';
    width: 0.5rem;
    height: 0.5rem;
    background-color: var(--primary);
    border-radius: 50%;
    flex-shrink: 0;
}

/* Publications Section */
#publications {
    padding-top: .8rem;
}

/* Contact Section */
#contact {
    padding-top: .8rem;
}

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

.contact-card {
    background-color: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.3s;
}

.contact-card:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.contact-card-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.contact-icon {
    padding: 0.5rem;
    border-radius: var(--radius);
    background-color: hsl(214, 95%, 45%, 0.1);
    color: var(--primary);
    flex-shrink: 0;
}

.contact-icon svg {
    width: 1.25rem;
    height: 1.25rem;
}

.contact-details {
    flex: 1;
}

.contact-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--muted-foreground);
    margin-bottom: 0.25rem;
}

.contact-value {
    color: var(--foreground);
    text-decoration: none;
    transition: color 0.2s;
}

.contact-value:hover {
    color: var(--primary);
}

/* New Contact Section Styles */
.section-subtitle-large {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 2rem;
    text-align: center;
    color: var(--foreground);
}

/* Get in Touch Section */
.get-in-touch-section {
    margin-bottom: 0;
}

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

.contact-box {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
    background-color: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--foreground);
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.contact-box:hover {
    box-shadow: 0 8px 12px rgba(0, 0, 0, 0.1);
    transform: translateY(-1px);
}

.contact-box-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 4rem;
    height: 4rem;
    border-radius: var(--radius);
    background-color: hsl(22, 100%, 50%, 0.1);;
    color: #FE5C00;
    flex-shrink: 0;
}

.contact-box-icon svg {
    width: 1.75rem;
    height: 1.75rem;
}

.contact-box-content {
    flex: 1;
}

.contact-box-title {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--foreground);
}

.contact-box-value {
    color: var(--muted-foreground);
    text-decoration: none;
    transition: color 0.2s;
    font-size: 0.85rem;
    line-height: 1.4;
    word-wrap: break-word;
    word-break: break-word;
    overflow-wrap: break-word;
}

.contact-box:hover .contact-box-value {
    color: var(--primary);
}

/* Non-clickable contact box (address) */
.contact-box:not([href]) {
    cursor: default;
}

.contact-box:not([href]):hover {
    transform: none;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.contact-box:not([href]):hover .contact-box-value {
    color: var(--muted-foreground);
}

/* Connect Online Section */
.connect-online-section {
    margin-bottom: 3rem;
}

.social-icons-grid {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.social-icon-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3.5rem;
    height: 3.5rem;
    background-color: var(--card);
    border: 1px solid var(--border);
    border-radius: 50%;
    text-decoration: none;
    color: var(--foreground);
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.social-icon-link:hover {
    box-shadow: 0 8px 12px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.social-icon-link.linkedin:hover {
    background-color: #0077b5;
    border-color: #0077b5;
    color: white;
}

.social-icon-link.github:hover {
    background-color: #333;
    border-color: #333;
    color: white;
}

.social-icon-link.twitter:hover {
    background-color: #1da1f2;
    border-color: #1da1f2;
    color: white;
}

.social-icon-link.scholar:hover {
    background-color: #4285f4;
    border-color: #4285f4;
    color: white;
}

.social-icon-link svg {
    width: 1.5rem;
    height: 1.5rem;
}

.social-icon-link span {
    display: none;
}

/* CV Downloads Update */
.cv-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.cv-buttons .btn {
    width: auto;
    margin-bottom: 0;
}

/* Social Links */
.social-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--foreground);
    font-weight: 500;
    transition: all 0.2s;
    position: relative;
}

.social-link:hover {
    background-color: hsl(220, 13%, 95%, 0.5);
}

.social-link.linkedin:hover {
    color: #0077b5;
}

.social-link.twitter:hover {
    color: #1da1f2;
}

.social-link.scholar:hover {
    color: var(--primary);
}

.social-link svg {
    width: 1.25rem;
    height: 1.25rem;
}

.external-icon {
    margin-left: auto;
    opacity: 0;
    transition: opacity 0.2s;
}

.social-link:hover .external-icon {
    opacity: 1;
}

/* CV Downloads */
.cv-downloads {
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.cv-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--muted-foreground);
    margin-bottom: 0.75rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    width: 100%;
    justify-content: center;
    margin-bottom: 0.5rem;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--primary-foreground);
}

.btn-primary:hover {
    background-color: hsl(214, 95%, 35%);
}

.btn-outline {
    background-color: transparent;
    color: var(--foreground);
    border: 1px solid var(--border);
}

.btn-outline:hover {
    background-color: var(--secondary);
}

.btn svg {
    width: 1rem;
    height: 1rem;
}

/* Office Hours */
.office-hours-card {
    margin-top: 2rem;
    padding: 2rem;
    background: linear-gradient(135deg, hsl(214, 95%, 45%, 0.05), hsl(214, 95%, 45%, 0.05));
    border: 1px solid hsl(214, 95%, 45%, 0.2);
    border-radius: var(--radius);
}

.office-hours-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.office-hours-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    color: var(--muted-foreground);
}

.office-hours-label {
    font-weight: 500;
    color: var(--foreground);
    margin-bottom: 0.5rem;
}

.office-hours-note {
    font-size: 0.875rem;
    color: var(--muted-foreground);
    opacity: 0.8;
    margin-top: 0.25rem;
}

/* Collaborations */
.collaborations-card {
    margin-top: 2rem;
    padding: 2rem;
    background-color: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.collaborations-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.collaborations-description {
    color: var(--muted-foreground);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.collaborations-list {
    list-style: none;
    display: grid;
    gap: 0.75rem;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.collaborations-list li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--muted-foreground);
}

.collaborations-list li::before {
    content: '';
    width: 0.5rem;
    height: 0.5rem;
    background-color: var(--primary);
    border-radius: 50%;
    flex-shrink: 0;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .mobile-menu-btn {
        display: block;
    }
    
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
        padding-top: 4rem;
    }
    
    .section {
        padding: 2rem 1rem;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    .section-title {
        font-size: 1.25rem;
    }
    
    
    .card-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-boxes {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .social-icons-grid {
        gap: 1.5rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1.5rem;
    }
    
    .footer-links {
        justify-content: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .cv-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cv-buttons .btn {
        width: 100%;
        max-width: 250px;
    }
    
    .office-hours-grid {
        grid-template-columns: 1fr;
    }
    
    .collaborations-list {
        grid-template-columns: 1fr;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section {
    animation: fadeIn 0.6s ease-out;
}

.education-card,
.publication-card {
    animation: fadeIn 0.6s ease-out;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Mark and Selection Styles */
mark {
    background-color: #FE5C00;
    color: white;
    padding: 0.125rem 0.25rem;
    border-radius: 0.25rem;
}

::selection {
    background-color: #FE5C00;
    color: white;
}

::-moz-selection {
    background-color: #FE5C00;
    color: white;
}

/* Footer */
.main-footer {
    background-color: var(--card);
    border-top: 1px solid var(--border);
    margin-top: 4rem;
    padding: 3rem 0 2rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 2rem;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border);
}

.footer-info {
    text-align: left;
}

.footer-name {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--foreground);
}

.footer-title {
    color: var(--muted-foreground);
    margin-bottom: 0.25rem;
    font-size: 1rem;
}

.footer-institution {
    color: var(--muted-foreground);
    font-size: 0.875rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-link {
    color: var(--muted-foreground);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.footer-link:hover {
    color: var(--primary);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-copyright {
    color: var(--muted-foreground);
    font-size: 0.875rem;
}

.footer-note {
    color: var(--muted-foreground);
    font-size: 0.875rem;
    font-style: italic;
}