/* Base Styles */
:root {
    --primary-color: #475569;
    --secondary-color: #334155;
    --accent-color: #64748b;
    --text-color: #1f2937;
    --light-text: #6b7280;
    --bg-color: #ffffff;
    --light-bg: #f8fafc;
    --card-bg: #ffffff;
    --border-color: #e5e7eb;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.7;
    color: var(--text-color);
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    transition: all 0.3s ease;
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: var(--transition);
}

a:hover {
    color: var(--secondary-color);
}

ul {
    list-style: none;
}

.exp-summary, .publication-list {
    list-style: disc;
    margin-left: 1.25rem;
    padding-left: 0.25rem;
}

.exp-summary li, .publication-list li {
    margin-bottom: 12px;
}

img {
    max-width: 100%;
    height: auto;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 25px;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-weight: 500;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.btn:hover {
    background-color: var(--secondary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 6px 8px rgba(0, 0, 0, 0.15);
}

.btn-small {
    padding: 5px 10px;
    font-size: 0.9rem;
}

.section-title {
    text-align: center;
    margin-bottom: 40px;
    font-size: 2.5rem;
    color: var(--primary-color);
    position: relative;
    padding-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--primary-color);
}

/* Header Styles */
header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 15px 0;
    transition: var(--transition);
}

header nav {
    display: flex;
    justify-content: center;
    align-items: center;
}

nav ul {
    display: flex;
    background: var(--card-bg);
    border-radius: 50px;
    padding: 8px 12px;
    box-shadow: var(--shadow);
}

nav ul li {
    margin: 0 4px;
}

nav ul li a {
    color: var(--text-color);
    font-weight: 500;
    padding: 12px 20px;
    border-radius: 25px;
    transition: var(--transition);
    position: relative;
}

nav ul li a:hover, nav ul li a.active {
    color: white;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.social-links a {
    margin-left: 15px;
    font-size: 1.2rem;
    color: var(--light-text);
}

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

/* Hero Section */
.about-section {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, var(--light-bg) 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.about-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="%23f1f5f9" opacity="0.5"/><circle cx="75" cy="75" r="1" fill="%23f1f5f9" opacity="0.3"/><circle cx="50" cy="10" r="0.5" fill="%23e2e8f0" opacity="0.4"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>') repeat;
    pointer-events: none;
}

.about-content {
    display: flex;
    align-items: center;
    gap: 60px;
    position: relative;
    z-index: 1;
}

.about-text {
    flex: 1;
}

.about-text h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-color);
    line-height: 1.1;
}

.about-text .title {
    font-size: 1.4rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 20px;
    line-height: 1.3;
}

.current-status {
    margin-bottom: 25px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.status-badge {
    background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
    color: white;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    box-shadow: var(--shadow);
}

.about-text p {
    margin-bottom: 20px;
    color: var(--light-text);
    font-size: 1.1rem;
    line-height: 1.7;
}

.research-interests {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin: 30px 0;
}

.interest-tag {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.interest-tag:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.contact-links {
    display: flex;
    gap: 20px;
    margin-top: 40px;
}

.contact-links a {
    padding: 12px 24px;
    background: var(--card-bg);
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    border-radius: 25px;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.contact-links a:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Email copy tooltip - Fixed for consistent button styling */
.email-container {
    position: relative;
    display: inline-block;
    margin: 0;
    padding: 0;
    vertical-align: baseline;
}

.contact-links .email-container a {
    display: inline-block;
    padding: 12px 24px;
    background: var(--card-bg);
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    border-radius: 25px;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: var(--shadow);
    margin: 0;
    text-decoration: none;
    font-size: 1rem;
    line-height: 1.7;
    vertical-align: baseline;
    box-sizing: border-box;
}

.contact-links .email-container a:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.copy-tooltip {
    position: absolute;
    top: -35px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--secondary-color);
    color: white;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    pointer-events: none;
    box-shadow: var(--shadow);
    z-index: 1000;
}

.copy-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: var(--secondary-color);
}

.copy-tooltip.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-2px);
}

.about-image {
    flex: 1;
    text-align: center;
    position: relative;
}

.profile-image img {
    max-width: 400px;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    border: 4px solid var(--card-bg);
}

.profile-image img:hover {
    transform: scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.cv-button {
    margin-top: 30px;
}

/* Section Styles */
.section {
    padding: 80px 0;
    background-color: var(--card-bg);
    margin: 40px 0;
    border-radius: 20px;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
    scroll-margin-top: 80px;
}

.section:nth-child(even) {
    background: linear-gradient(135deg, var(--light-bg) 0%, var(--card-bg) 100%);
}

.section h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 50px;
    text-align: center;
    position: relative;
}

.section h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

.news-list {
    max-width: 900px;
    margin: 0 auto;
}

.news-item {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--primary-color);
    transition: var(--transition);
}

.news-item:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-lg);
}

.news-date {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.95rem;
    background: rgba(71, 85, 105, 0.1);
    padding: 4px 12px;
    border-radius: 20px;
    display: inline-block;
    margin-bottom: 10px;
}

.news-content {
    color: var(--text-color);
    font-size: 1.1rem;
    line-height: 1.6;
}

/* Media Section Styles */
.media-list {
    max-width: 900px;
    margin: 0 auto;
}

.media-item {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.media-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
}

.media-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.media-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    flex-wrap: wrap;
    gap: 10px;
}

.media-outlet, .media-date, .media-type {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.95rem;
    background: rgba(71, 85, 105, 0.1);
    padding: 4px 12px;
    border-radius: 20px;
}

.media-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-color);
    margin: 0 0 12px 0;
    line-height: 1.3;
}

.media-title a {
    color: var(--text-color);
    transition: var(--transition);
}

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

.media-summary {
    color: var(--text-color);
    font-size: 1.05rem;
    line-height: 1.6;
    margin: 0;
}

/* Experience List Styles */
.experience-list {
    max-width: 900px;
    margin: 0 auto;
}

.experience-item {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.experience-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
}

.experience-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.exp-header {
    margin-bottom: 12px;
}

.exp-role {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-color);
    margin: 0 0 4px 0;
    line-height: 1.3;
}

.exp-company {
    font-size: 1.1rem;
    color: var(--primary-color);
    font-weight: 500;
}

.exp-details {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    flex-wrap: wrap;
    gap: 10px;
}

.exp-dates {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.95rem;
    background: rgba(71, 85, 105, 0.1);
    padding: 4px 12px;
    border-radius: 20px;
}

.exp-location {
    color: var(--light-text);
    font-style: italic;
    font-size: 0.95rem;
}

.exp-summary {
    color: var(--text-color);
    font-size: 1.05rem;
    line-height: 1.6;
    margin: 0;
}

/* Publications Section */
.publication {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.publication::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
}

.publication:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.publication h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 12px;
    line-height: 1.4;
}

.authors {
    font-style: italic;
    color: var(--light-text);
    margin-bottom: 8px;
    font-size: 1rem;
}

.authors .me {
    font-weight: 700;
    color: var(--text-color);
    background: rgba(71, 85, 105, 0.12);
    padding: 2px 6px;
    border-radius: 6px;
    font-style: normal;
}

.venue {
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 20px;
    background: rgba(71, 85, 105, 0.1);
    padding: 4px 12px;
    border-radius: 20px;
    display: inline-block;
    margin: 0;
    padding: 0;
    vertical-align: baseline;
    font-size: 0.9rem;
}

.publication-links {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.publication-links a {
    padding: 8px 16px;
    background: var(--light-bg);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    border-radius: 20px;
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
}

.publication-links a:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.scholar-link {
    text-align: center;
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.scholar-link a {
    color: var(--primary-color);
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
}

.scholar-link a:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

/* Experience Section */
.experience-section {
    padding: 80px 0;
    background-color: var(--bg-color);
}

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

.timeline::after {
    content: '';
    position: absolute;
    width: 2px;
    background-color: var(--border-color);
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -1px;
}

.timeline-item {
    padding: 10px 40px;
    position: relative;
    width: 50%;
    box-sizing: border-box;
}

.timeline-item:nth-child(odd) {
    left: 0;
}

.timeline-item:nth-child(even) {
    left: 50%;
}

.timeline-date {
    position: absolute;
    width: 160px;
    padding: 8px 0;
    background-color: var(--primary-color);
    color: white;
    text-align: center;
    border-radius: 4px;
    top: 20px;
}

.timeline-item:nth-child(odd) .timeline-date {
    right: -80px;
}

.timeline-item:nth-child(even) .timeline-date {
    left: -80px;
}

.timeline-content {
    padding: 20px;
    background-color: var(--light-bg);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.timeline-content h3 {
    font-size: 1.3rem;
    margin-bottom: 5px;
    color: var(--primary-color);
}

.timeline-content h4 {
    font-size: 1.1rem;
    margin-bottom: 15px;
    color: var(--light-text);
    font-weight: 500;
}

/* Education Section */
.education-section {
    padding: 80px 0;
    background-color: var(--light-bg);
}

.education-list {
    max-width: 800px;
    margin: 0 auto;
}

.education-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 30px;
    background-color: var(--bg-color);
    border-radius: 8px;
    padding: 25px;
    box-shadow: var(--shadow);
}

.education-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-right: 20px;
}

.education-content h3 {
    font-size: 1.3rem;
    margin-bottom: 5px;
    color: var(--primary-color);
}

.education-content h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: var(--light-text);
    font-weight: 500;
}

.education-date {
    font-style: italic;
    color: var(--light-text);
}

/* Skills Section */
.skills-section {
    padding: 80px 0;
    background-color: var(--bg-color);
}

.skills-container {
    display: flex;
    gap: 40px;
}

.skills-column {
    flex: 1;
}

.skills-column h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.skill-item {
    margin-bottom: 20px;
}

.skill-name {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.skill-bar {
    height: 10px;
    background-color: var(--light-bg);
    border-radius: 5px;
    overflow: hidden;
}

.skill-level {
    height: 100%;
    background-color: var(--primary-color);
    border-radius: 5px;
}

.language-item, .certification-item {
    margin-bottom: 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.language-name {
    font-weight: 500;
}

.language-level {
    color: var(--light-text);
    font-style: italic;
}

.certification-item {
    display: flex;
    align-items: center;
}

.certification-item i {
    color: var(--primary-color);
    margin-right: 10px;
}

/* Contact Section */
.contact-section {
    padding: 80px 0;
    background-color: var(--light-bg);
}

.contact-content {
    display: flex;
    justify-content: center;
}

.contact-info {
    max-width: 600px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 30px;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-right: 20px;
    margin-top: 5px;
}

.contact-item h3 {
    font-size: 1.3rem;
    margin-bottom: 5px;
    color: var(--primary-color);
}

.contact-item p {
    color: var(--text-color);
}

/* Footer */
footer {
    background-color: var(--secondary-color);
    color: white;
    padding: 30px 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-links a {
    color: white;
    margin-left: 15px;
    font-size: 0.9rem;
}

.footer-links a:hover {
    text-decoration: underline;
}

/* Mobile Navigation System */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    margin-right: 20px;
    z-index: 1001;
}

.hamburger-line {
    width: 100%;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Mobile Navigation Active State */
.mobile-menu-btn.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Responsive Styles - Mobile First Approach */

/* Mobile Styles (Default - 320px and up) */
@media (max-width: 1023px) {
    /* Navigation */
    header {
        padding: 10px 0;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    #main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
        transition: right 0.3s ease;
        z-index: 1000;
        padding: 80px 20px 20px;
    }
    
    #main-nav.active {
        right: 0;
    }
    
    #main-nav ul {
        flex-direction: column;
        background: transparent;
        border-radius: 0;
        padding: 0;
        box-shadow: none;
        width: 100%;
    }
    
    #main-nav ul li {
        margin: 0;
        margin-bottom: 10px;
    }
    
    #main-nav ul li a {
        display: block;
        width: 100%;
        padding: 15px 20px;
        background: var(--light-bg);
        border-radius: 12px;
        text-align: center;
        font-size: 1.1rem;
        margin-bottom: 10px;
        border: 2px solid transparent;
        transition: all 0.3s ease;
    }
    
    #main-nav ul li a:hover,
    #main-nav ul li a.active {
        background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
        color: white;
        transform: translateX(5px);
        border-color: var(--primary-color);
    }
    
    /* Hero Section - Mobile Layout */
    .about-content {
        flex-direction: column;
        text-align: center;
        gap: 40px;
        padding: 0 10px;
    }
    
    .about-text {
        order: 1;
    }
    
    .profile-image {
        order: 2;
    }
    
    .about-text h1 {
        font-size: clamp(1.8rem, 6vw, 2.5rem);
        text-align: center;
        line-height: 1.1;
        margin-bottom: 15px;
    }
    
    .about-text .title {
        font-size: clamp(1rem, 3vw, 1.2rem);
        text-align: center;
    }
    
    .about-text p {
        font-size: clamp(0.95rem, 2.5vw, 1rem);
        line-height: 1.8;
        text-align: center;
    }
    
    .current-status {
        justify-content: center;
        margin-bottom: 20px;
    }

    .status-badge {
        display: inline-block;
        font-size: 0.8rem;
        padding: 8px 16px;
    }
    
    /* Research Interests - Mobile */
    .research-interests {
        justify-content: center;
        gap: 8px;
        margin: 20px 0;
    }
    
    .interest-tag {
        font-size: 0.8rem;
        padding: 6px 12px;
    }
    
    /* Contact Links - Mobile */
    .contact-links {
        flex-direction: column;
        align-items: center;
        gap: 15px;
        margin-top: 30px;
    }
    
    .contact-links a,
    .email-container a {
        min-height: 44px;
        min-width: 44px;
        padding: 12px 24px;
        font-size: 1rem;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    /* Profile Image - Mobile */
    .profile-image img {
        max-width: 280px;
        width: 100%;
        height: auto;
        border-radius: 16px;
    }
    
    /* Sections - Mobile */
    .section {
        margin: 20px 0;
        border-radius: 16px;
        padding: 40px 20px;
    }
    
    .section h2 {
        font-size: clamp(1.5rem, 4vw, 2rem);
        margin-bottom: 30px;
    }
    
    /* News Items - Mobile */
    .news-item {
        padding: 20px;
        margin-bottom: 15px;
    }
    
    .news-date {
        font-size: 0.85rem;
        margin-bottom: 8px;
    }
    
    .news-content {
        font-size: clamp(0.95rem, 2.5vw, 1rem);
        line-height: 1.7;
    }
    
    /* Experience Items - Mobile */
    .experience-item {
        padding: 25px 20px;
        margin-bottom: 20px;
    }
    
    .exp-header {
        margin-bottom: 10px;
    }
    
    .exp-role {
        font-size: clamp(1.1rem, 3vw, 1.3rem);
        line-height: 1.3;
    }
    
    .exp-company {
        font-size: clamp(0.95rem, 2.5vw, 1.1rem);
    }
    
    .exp-details {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
        margin-bottom: 15px;
    }
    
    .exp-dates,
    .exp-location {
        font-size: 0.9rem;
    }
    
    .exp-summary {
        font-size: clamp(0.9rem, 2.5vw, 1rem);
        line-height: 1.7;
    }
    
    .exp-summary li {
        margin-bottom: 10px;
    }
    
    /* Publications - Mobile */
    .publication {
        padding: 25px 20px;
        margin-bottom: 20px;
    }
    
    .publication h3 {
        font-size: clamp(1rem, 3vw, 1.3rem);
        line-height: 1.5;
    }
    
    .authors {
        font-size: 0.9rem;
        line-height: 1.6;
    }
    
    .venue {
        font-size: 0.85rem;
        margin: 10px 0;
    }
    
    .publication-links {
        flex-direction: column;
        gap: 8px;
        margin-top: 15px;
    }
    
    .publication-links a {
        text-align: center;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    /* Media Items - Mobile */
    .media-item {
        padding: 25px 20px;
        margin-bottom: 20px;
    }
    
    .media-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
        margin-bottom: 12px;
    }
    
    .media-title {
        font-size: clamp(1.1rem, 3vw, 1.3rem);
        line-height: 1.4;
    }
    
    .media-outlet,
    .media-date,
    .media-type {
        font-size: 0.85rem;
    }
    
    /* Copy Tooltip - Mobile */
    .copy-tooltip {
        font-size: 0.8rem;
        top: -40px;
        padding: 8px 12px;
    }
    
    /* Container - Mobile */
    .container {
        width: 95%;
        padding: 0 15px;
    }
    
    /* About Section Padding - Mobile */
    .about-section {
        padding: 100px 0 60px;
    }
    
    /* Footer - Mobile */
    footer {
        padding: 20px 0;
    }
    
    footer p {
        font-size: 0.9rem;
    }
}

/* Tablet Styles (768px to 1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
    .about-content {
        gap: 40px;
        padding: 0 20px;
    }
    
    .profile-image img {
        max-width: 320px;
    }
    
    .section {
        padding: 50px 30px;
    }
    
    .research-interests {
        gap: 10px;
    }
    
    .contact-links {
        flex-direction: row;
        justify-content: center;
        flex-wrap: wrap;
    }
}

/* Large Tablet Styles (992px to 1023px) */
@media (min-width: 992px) and (max-width: 1023px) {
    .about-content {
        flex-direction: row;
        text-align: left;
    }
    
    .about-text {
        order: 1;
    }
    
    .profile-image {
        order: 2;
    }
    
    .about-text h1,
    .about-text .title,
    .about-text p {
        text-align: left;
    }
    
    .current-status {
        justify-content: flex-start;
    }
    
    .research-interests {
        justify-content: flex-start;
    }
    
    .contact-links {
        justify-content: flex-start;
    }
}

/* Desktop and Large Desktop (1024px and up) - Preserve original desktop experience */
@media (min-width: 1024px) {
    .mobile-menu-btn {
        display: none;
    }
    
    #main-nav {
        position: static;
        width: auto;
        height: auto;
        background: none;
        box-shadow: none;
        padding: 0;
        transform: none;
    }
    
    #main-nav.active {
        right: auto;
    }
    
    #main-nav ul {
        flex-direction: row;
        background: var(--card-bg);
        border-radius: 50px;
        padding: 8px 12px;
        box-shadow: var(--shadow);
        justify-content: center;
    }
    
    #main-nav ul li {
        margin: 0 4px;
        margin-bottom: 0;
    }
    
    #main-nav ul li a {
        width: auto;
        padding: 12px 20px;
        background: none;
        text-align: center;
        font-size: inherit;
        margin-bottom: 0;
        border: none;
        border-radius: 25px;
    }
    
    #main-nav ul li a:hover,
    #main-nav ul li a.active {
        background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
        color: white;
        transform: translateY(-1px);
        border: none;
    }
    
    .nav-container {
        justify-content: center;
    }
    
    /* Restore original desktop layouts */
    .about-content {
        flex-direction: row;
        text-align: left;
        gap: 60px;
    }
    
    .about-text {
        flex: 1;
    }
    
    .profile-image {
        flex: 1;
    }
    
    .about-text h1 {
        font-size: 3.5rem;
        text-align: left;
    }
    
    .about-text .title {
        font-size: 1.4rem;
        text-align: left;
    }
    
    .about-text p {
        text-align: left;
        font-size: 1.1rem;
    }
    
    .current-status {
        justify-content: flex-start;
    }
    
    .research-interests {
        justify-content: flex-start;
    }
    
    .contact-links {
        flex-direction: row;
        justify-content: flex-start;
    }
    
    .profile-image img {
        max-width: 400px;
    }
    
    .section {
        padding: 80px 0;
        margin: 40px 0;
    }
    
    .section h2 {
        font-size: 2.5rem;
    }
}

/* Large Desktop Optimization (1200px and up) */
@media (min-width: 1200px) {
    .container {
        max-width: 1100px;
    }
}

/* Additional Mobile Optimizations */
@media (max-width: 480px) {
    .section {
        padding: 30px 15px;
        margin: 15px 0;
    }
    
    .about-section {
        padding: 90px 0 50px;
    }
    
    .experience-item,
    .publication,
    .media-item,
    .news-item {
        padding: 20px 15px;
    }
    
    .contact-links a,
    .publication-links a {
        font-size: 0.9rem;
        padding: 10px 20px;
    }
}

/* Landscape Orientation Mobile */
@media (max-height: 500px) and (orientation: landscape) {
    #main-nav {
        padding-top: 60px;
    }
    
    .about-section {
        padding: 80px 0 40px;
    }
}