/* ============================================
   CSS Variables - Design System
   ============================================ */
:root {
  /* Primary colors */
  --color-primary: #1a365d;
  --color-navy: #1a365d; /* Same as primary, kept for semantic clarity */
  --color-accent: #9f1239;

  /* Text colors */
  --color-text: #2c3e50;
  --color-text-light: #5a6c7d;

  /* Background colors */
  --color-bg: #ffffff;
  --color-bg-alt: #fafafa;
  --color-border: #e5e7eb;

  /* Section background colors (for mobile) */
  --color-warm-1: #ffffff;
  --color-warm-2: #fafafa;
  --color-warm-3: #FAF0E6;

  /* Brand color palette */
  --color-turquoise: #20B2AA;
  --color-coral-rose: #FF6B9D;
  --color-slate: #5D6D7E;

  --font-primary: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;

  --max-width: 800px;
  --max-width-wide: 1200px;

  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3 {
  font-family: var(--font-primary);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 1.75rem;
  margin-bottom: var(--spacing-lg);
  color: var(--color-coral-rose);
  font-weight: 700;
}

h3 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
  color: var(--color-text);
}

/* Education and Experience headings within Bio section */
.education-section h3,
.experience-section h3 {
  color: var(--color-turquoise);
  font-family: var(--font-primary);
}

p {
  margin-bottom: var(--spacing-sm);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  font-family: var(--font-primary);
  font-weight: 400;
}

/* ============================================
   Accessibility
   ============================================ */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: white;
  padding: 8px;
  text-decoration: none;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

/* ============================================
   Header & Navigation
   ============================================ */
header {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: var(--transition);
}

header.scrolled {
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.nav-container {
  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-brand a {
  font-family: var(--font-primary);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-coral-rose);
  text-decoration: none;
}

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

.nav-menu a {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
  padding: 0.25rem 0;
}

.nav-menu a:hover {
  border-bottom-color: var(--color-primary);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  gap: 4px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: var(--transition);
}

/* ============================================
   Layout & Container
   ============================================ */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container.hero-container {
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-xl) 0;
  position: relative;
}

/* Background colors alternating for sections */
/* Hero is first (white), then About (grey), then Bio (white), Research (grey), etc. */
section#about {
  background: var(--color-warm-2);
}

section#bio {
  background: var(--color-warm-1);
}

section#research {
  background: var(--color-warm-2);
}

section#publications {
  background: var(--color-warm-1);
}

section#cv {
  background: var(--color-warm-1);
}

section#conferences {
  background: var(--color-warm-2);
}

section#contact {
  background: var(--color-warm-2);
}

section#social-links {
  background: var(--color-warm-1);
}


/* ============================================
   Hero Section
   ============================================ */
.hero {
  position: relative;
  background: var(--color-warm-1);
}

.hero-container {
  max-width: var(--max-width-wide);
}

.hero-content {
  display: flex;
  flex-direction: column;
}

.hero-name {
  font-family: 'Times New Roman', Times, serif;
  font-weight: 700;
  color: var(--color-coral-rose);
}

.hero-title {
  font-family: var(--font-primary);
  font-weight: 500;
}

.hero-subtitle {
  font-family: var(--font-primary);
  font-weight: 400;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
}

.hero-links {
  font-family: var(--font-primary);
}

.hero-links a {
  text-decoration: none;
  transition: all 0.2s ease;
}

.link-separator {
  color: var(--color-text-light);
}

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.profile-photo {
  object-fit: cover;
}


/* ============================================
   Buttons
   ============================================ */
.button {
  display: inline-block;
  padding: 12px 32px;
  font-family: var(--font-primary);
  font-size: 16px;
  font-weight: 500;
  text-decoration: none;
  border: 2px solid var(--color-primary);
  transition: var(--transition);
  cursor: pointer;
  background: none;
}

.button-primary {
  background: var(--color-coral-rose);
  border-color: var(--color-coral-rose);
  color: white;
}

.button-primary:hover {
  background: transparent;
  color: var(--color-coral-rose);
}

.button-secondary {
  background: transparent;
  color: var(--color-primary);
}

.button-secondary:hover {
  background: var(--color-primary);
  color: white;
}

.button-link {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-border);
  text-align: center;
}

.button-link:hover {
  background: var(--color-bg-alt);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ============================================
   About Section
   ============================================ */
.about-content {
  margin-bottom: 0;
}

.about-text p {
  margin-bottom: var(--spacing-md);
}

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

.education-section,
.experience-section {
  margin-top: var(--spacing-xl);
}

.education-section:first-child {
  margin-top: 0;
  padding-top: 0;
}

.education-list,
.experience-list {
  list-style: none;
}

.education-list li {
  margin-bottom: var(--spacing-md);
  padding-left: 0;
}

.institution {
  color: var(--color-text-light);
  font-style: italic;
  font-family: var(--font-primary);
  font-weight: 300;
  font-size: 15px;
}

.thesis {
  display: block;
  margin-top: var(--spacing-xs);
  color: var(--color-text-light);
  font-size: 15px;
  font-family: var(--font-primary);
  font-weight: 300;
}

.experience-list li {
  margin-bottom: var(--spacing-md);
  padding-left: 0;
}

/* ============================================
   Research Interests
   ============================================ */
.research-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
}

.research-item h3 {
  font-family: var(--font-primary);
  font-size: 1.25rem;
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
  color: var(--color-turquoise);
}

.research-item p {
  color: var(--color-text-light);
  font-size: 15px;
  margin-bottom: 0;
  font-family: var(--font-primary);
  font-weight: 300;
  line-height: 1.5;
}

/* ============================================
   Publications
   ============================================ */
.publication {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid var(--color-border);
}

.publication:last-child,
section .publication:last-of-type {
  margin-bottom: 0 !important;
  border-bottom: none !important;
}

/* Conference styles - copied from publication */
.conference {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid var(--color-border);
}

.conference:last-child,
section .conference:last-of-type {
  margin-bottom: 0 !important;
  padding-bottom: 0 !important;
  border-bottom: none !important;
}

.publication.featured {
  background: var(--color-bg-alt);
  padding: var(--spacing-lg);
  border-radius: 4px;
  border: 1px solid var(--color-border);
  margin-bottom: var(--spacing-xl);
}

.publication.featured:last-child {
  margin-bottom: 0;
}

.publication-header {
  margin-bottom: var(--spacing-md);
}

.publication-year {
  display: inline-block;
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-xs);
  font-family: var(--font-primary);
  font-weight: 400;
}

.publication h3 {
  font-family: var(--font-primary);
  font-size: 1.15rem;
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text);
}

.publication-type {
  font-size: 14px;
  color: var(--color-coral-rose);
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
  font-family: var(--font-primary);
}

.publication-venue {
  font-size: 15px;
  color: var(--color-text-light);
  font-style: italic;
  font-family: var(--font-primary);
  font-weight: 300;
}

.publication-authors {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-xs);
  font-family: var(--font-primary);
  font-weight: 400;
}

.publication-actions {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  margin-top: var(--spacing-xs);
  justify-content: flex-start;
}

.abstract-toggle {
  background: none;
  border: none;
  color: var(--color-primary);
  font-size: 15px;
  cursor: pointer;
  text-decoration: underline;
  padding: 0;
  font-family: var(--font-primary);
  font-weight: 400;
}

.abstract-toggle:hover {
  color: var(--color-accent);
}

.abstract {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.abstract.expanded {
  max-height: 500px;
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border);
}

.abstract p {
  color: var(--color-text-light);
  font-size: 15px;
  font-family: var(--font-primary);
  font-weight: 300;
  line-height: 1.6;
}

.publication-link {
  color: var(--color-primary);
  text-decoration: none;
  font-size: 15px;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
  font-family: var(--font-primary);
  font-weight: 400;
}

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


/* ============================================
   CV Section
   ============================================ */
.cv-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.cv-download {
  text-align: center;
  padding: var(--spacing-lg);
  border: 2px solid var(--color-turquoise);
}

.cv-updated {
  margin-top: var(--spacing-sm);
  font-size: 14px;
  color: var(--color-text-light);
  font-family: var(--font-primary);
  font-weight: 300;
}

.cv-preview {
  max-width: 700px;
  margin: 0 auto;
}

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

.cv-section:last-child {
  border-bottom: none;
  padding-bottom: 0 !important;
}

.cv-section h3 {
  font-family: var(--font-primary);
  font-size: 1.15rem;
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.cv-section ul {
  list-style: none;
  padding-left: 0;
}

.cv-section li {
  margin-bottom: var(--spacing-xs);
  padding-left: 0;
}

/* ============================================
   Contact Section
   ============================================ */
.contact-content {
  max-width: 600px;
  margin: 0 auto;
}

.contact-intro {
  margin-bottom: var(--spacing-lg);
  text-align: left;
}

.contact-info {
  margin-bottom: var(--spacing-lg);
  text-align: left;
}

.contact-info p {
  margin-bottom: var(--spacing-sm);
}

.contact-info a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.contact-info a:hover {
  border-bottom-color: var(--color-primary);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group label {
  font-size: 15px;
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text);
  font-family: var(--font-primary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px;
  font-family: var(--font-primary);
  font-size: 16px;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  transition: border-color 0.2s ease;
  background: var(--color-bg);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.contact-links {
  text-align: left;
}

.contact-links p {
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
}

.social-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  align-items: stretch;
  margin-top: var(--spacing-sm);
  color: var(--color-text-light);
}

.social-links .link-separator {
  display: none;
}

.social-links a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  background: var(--color-bg-alt);
  border-left: 3px solid var(--color-coral-rose);
  text-align: left;
  border-radius: 0;
  font-size: 15px;
  transition: all 0.2s ease;
  color: var(--color-text);
  text-decoration: none;
  font-family: var(--font-primary);
  font-weight: 400;
}

.social-links .social-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--color-text);
  transition: color 0.2s ease;
}

.social-links a:hover {
  background: var(--color-bg-alt);
  border-left-color: var(--color-coral-rose);
  color: var(--color-primary);
  padding-left: 20px;
}

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

/* ============================================
   Footer
   ============================================ */
.footer {
  background: #4a4a4a;
  text-align: center;
  padding: 10px 0;
}

.footer p {
  font-size: 14px;
  color: #ffffff;
  margin-bottom: 0.25rem;
  font-family: var(--font-primary);
  font-weight: 700;
}

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

.footer-links a {
  font-size: 14px;
  color: var(--color-text-light);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.footer-links a:hover {
  border-bottom-color: var(--color-text-light);
}

/* ============================================
   Links
   ============================================ */
a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

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

/* ============================================
   Responsive Design
   ============================================ */

/* Mobile First - Base styles for 320px+ */

/* Small tablets */
@media (min-width: 640px) {
  h1 {
    font-size: 3.5rem;
  }

  .hero-name {
    font-size: 4rem;
  }
}

/* Tablets */
@media (min-width: 768px) {
  .section {
    padding: var(--spacing-xl) 0;
  }
}

/* Desktop */
@media (min-width: 1024px) {
  h1 {
    font-size: 4rem;
  }

  .hero-name {
    font-size: 4.5rem;
  }
}

/* Mobile Navigation & Hero Styles */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 62px;
    left: 0;
    width: 100%;
    background: white;
    flex-direction: column;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  }

  .nav-menu.active {
    transform: translateX(0);
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    min-height: auto;
    padding-top: 100px;
    padding-bottom: var(--spacing-md);
  }

  .hero-container {
    display: grid;
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--spacing-sm);
  }

  .hero-content {
    gap: var(--spacing-xs);
  }

  .hero-image {
    order: -1;
    margin-bottom: var(--spacing-xs);
  }

  .profile-photo {
    width: 180px;
    height: 220px;
    border-radius: 12px;
    border: 3px solid var(--color-border);
  }

  .hero-name {
    display: none;
  }

  .hero-title {
    font-size: 18px;
    margin-bottom: 0.25rem;
    color: var(--color-text);
    font-weight: 400;
    letter-spacing: 0.02em;
    line-height: 1.4;
  }

  .hero-subtitle {
    font-size: 16px;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-light);
    font-weight: 300;
    line-height: 1.5;
    letter-spacing: 0.01em;
  }

  .hero-buttons {
    justify-content: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-xs);
  }

  .hero-buttons .button {
    padding: 10px 20px;
    font-size: 15px;
    font-weight: 500;
  }

  .hero-buttons .button-primary {
    background: var(--color-coral-rose);
    border-color: var(--color-coral-rose);
    color: white;
  }

  .hero-buttons .button-primary:hover {
    background: #FF4D7A;
    border-color: #FF4D7A;
    color: white;
  }

  .hero-buttons .button-secondary {
    background: var(--color-coral-rose);
    border-color: var(--color-coral-rose);
    color: white;
  }

  .hero-buttons .button-secondary:hover {
    background: #FF4D7A;
    border-color: #FF4D7A;
    color: white;
  }

  .hero-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    align-items: stretch;
    margin-top: var(--spacing-sm);
    font-size: 15px;
    color: #5a6c7d;
    font-weight: 300;
  }

  .hero-links .link-separator {
    display: none;
  }

  .hero-links a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    background: var(--color-bg-alt);
    border-left: 3px solid var(--color-coral-rose);
    text-align: left;
    border-radius: 0;
    font-size: 15px;
    color: var(--color-text);
    font-weight: 400;
  }

  .hero-links .social-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    color: var(--color-text);
  }

  .hero-links a:hover {
    background: var(--color-bg-alt);
    border-left-color: var(--color-coral-rose);
    color: var(--color-primary);
    padding-left: 20px;
  }

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

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

  .publication-actions {
    flex-direction: column;
  }

  .abstract-toggle {
    background: transparent;
    border: 2px solid var(--color-turquoise);
    color: var(--color-turquoise);
    text-decoration: none;
    padding: 10px 24px;
    font-weight: 500;
    border-radius: 0;
    transition: all 0.2s ease;
    font-family: var(--font-primary);
    font-size: 15px;
  }

  .abstract-toggle:hover {
    background: transparent;
    color: var(--color-turquoise);
    border-color: var(--color-turquoise);
  }

  .abstract-toggle.active,
  .abstract-toggle[aria-expanded="true"] {
    background: transparent;
    border-color: var(--color-coral-rose);
    color: var(--color-coral-rose);
  }

  .abstract-toggle.active:hover,
  .abstract-toggle[aria-expanded="true"]:hover {
    background: transparent;
    color: var(--color-coral-rose);
    border-color: var(--color-coral-rose);
  }

  .publication-link {
    display: inline;
    background: none;
    border: none;
    color: var(--color-coral-rose);
    font-weight: 400;
    padding: 0;
    text-decoration: underline;
    transition: all 0.2s ease;
    font-family: var(--font-primary);
    font-size: 15px;
  }

  .publication-link:hover {
    color: var(--color-coral-rose);
    border-bottom: none;
  }

  .button {
    width: 100%;
    text-align: center;
  }

  .cv-section:last-child {
    margin-bottom: 0 !important;
  }
}

/* Desktop Styles */
@media (min-width: 769px) {
  /* Section Backgrounds - Desktop: Remove alternating colors, use white */
  section#home,
  section#about,
  section#bio,
  section#research,
  section#publications,
  section#cv,
  section#conferences,
  section#contact,
  section#social-links {
    background: var(--color-warm-1);
  }

  /* Section Borders - Desktop: Add navy dashed borders between sections */
  section#about {
    border-top: 1px dashed var(--color-navy);
  }

  section#bio {
    border-top: 1px dashed var(--color-navy);
  }

  section#research {
    border-top: 1px dashed var(--color-navy);
  }

  section#publications {
    border-top: 1px dashed var(--color-navy);
  }

  section#cv {
    border-top: 1px dashed var(--color-navy);
  }

  section#conferences {
    border-top: 1px dashed var(--color-navy);
  }

  section#contact {
    border-top: 1px dashed var(--color-navy);
  }

  section#social-links {
    border-top: 1px dashed var(--color-navy);
  }

  /* Typography - Desktop */
  body {
    font-size: 17px;
  }

  h2 {
    font-size: 2rem;
    color: var(--color-coral-rose);
  }

  h3 {
    font-size: 1.375rem;
  }

  p {
    font-size: 17px;
  }

  /* Navigation - Desktop */
  .nav-brand a {
    font-size: 20px;
    color: var(--color-coral-rose);
  }

  .nav-menu a {
    font-size: 16px;
  }

  /* Hero Section - Desktop */
  .hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(80px + var(--spacing-md)) 0 var(--spacing-xl) 0;
  }

  .hero-container {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
  }

  .hero-content {
    gap: var(--spacing-sm);
    justify-content: center;
  }

  .hero-name {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-xs);
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--color-coral-rose);
  }

  .hero-title {
    font-size: 1.75rem;
    color: var(--color-navy);
    margin-bottom: 0.25rem;
    letter-spacing: 0.01em;
    line-height: 1.4;
  }

  .hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-navy);
    margin-bottom: var(--spacing-sm);
    line-height: 1.5;
    letter-spacing: 0.01em;
  }

  .hero-buttons {
    gap: var(--spacing-sm);
  }

  .hero-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: 16px;
    color: var(--color-text-light);
    margin-top: var(--spacing-xs);
    font-weight: 400;
    flex-wrap: wrap;
  }

  .hero-links a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-text);
    border-bottom: 1px solid transparent;
    padding: 4px 0;
  }

  .hero-links a:hover {
    color: var(--color-navy);
    border-bottom-color: var(--color-navy);
  }

  .hero-links .social-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    color: var(--color-text-light);
    transition: color 0.2s ease;
  }

  .hero-links a:hover .social-icon {
    color: var(--color-navy);
  }

  .hero-links .link-separator {
    display: inline;
    margin: 0 4px;
  }

  .hero-image {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding-left: var(--spacing-lg);
  }

  .profile-photo {
    width: 400px;
    height: 480px;
    border-radius: 20px;
    border: 3px solid var(--color-border);
    margin-left: var(--spacing-md);
  }

  /* Research Interests - Desktop */
  .research-item h3 {
    font-size: 1.5rem;
    color: var(--color-navy);
  }

  .research-item p {
    font-size: 17px;
  }

  /* Education and Experience - Desktop */
  .education-section h3,
  .experience-section h3 {
    font-size: 1.5rem;
    color: var(--color-navy);
  }

  .institution,
  .thesis {
    font-size: 16px;
  }

  /* Buttons - Desktop */
  .button-primary {
    background: var(--color-coral-rose);
    border-color: var(--color-coral-rose);
    color: white;
  }

  .button-primary:hover {
    background: transparent;
    color: var(--color-coral-rose);
  }

  /* CV Download - Desktop */
  .cv-download {
    border: 2px solid var(--color-navy);
  }

  /* Publications - Desktop */
  .publication h3 {
    font-size: 1.375rem;
  }

  .publication-year {
    font-size: 15px;
  }

  .publication-type {
    font-size: 15px;
  }

  .publication-venue,
  .publication-authors {
    font-size: 16px;
  }

  .publication-link,
  .abstract-toggle {
    font-size: 16px;
  }

  .abstract p {
    font-size: 17px;
  }

  /* CV Section - Desktop */
  .cv-section h3 {
    font-size: 1.375rem;
  }

  .cv-updated {
    font-size: 15px;
  }

  /* Contact Section - Desktop */
  section#contact h2 {
    text-align: left;
  }

  .contact-content {
    max-width: 100%;
    margin-left: 0;
    margin-right: 0;
    text-align: left;
  }

  .contact-intro {
    text-align: left;
  }

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

  .contact-form-container {
    text-align: center;
    max-width: 600px;
    margin: var(--spacing-lg) auto 0;
    width: 100%;
  }

  .contact-form {
    text-align: left;
    width: 100%;
  }

  .form-group {
    width: 100%;
  }

  .form-group label {
    font-size: 16px;
    text-align: left;
  }

  .form-group input,
  .form-group textarea {
    font-size: 17px;
    text-align: left;
    width: 100%;
  }

  .contact-form .button-primary {
    margin: 0 auto;
    display: block;
  }

  /* Social Links - Desktop */
  .social-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    max-width: 800px;
    margin: var(--spacing-md) auto 0;
    justify-items: start;
  }

  .social-links .link-separator {
    display: none;
  }

  .social-links a {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--color-text);
    border-bottom: 1px solid transparent;
    padding: 4px 0;
    background: none;
    border-left: none;
    text-align: left;
    border-radius: 0;
    font-size: 16px;
    font-weight: 400;
    white-space: nowrap;
  }

  .social-links a:hover {
    color: var(--color-navy);
    border-bottom-color: var(--color-navy);
    background: none;
    padding-left: 0;
  }

  .social-links .social-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    color: var(--color-text);
    transition: color 0.2s ease;
  }

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

  @media (min-width: 1024px) {
    body {
      font-size: 18px;
    }

    h2 {
      font-size: 2.25rem;
    }

    h3 {
      font-size: 1.5rem;
    }

    p {
      font-size: 18px;
    }

    .hero-name {
      font-size: 4.5rem;
      line-height: 1.1;
      margin-bottom: var(--spacing-xs);
    }

    .hero-title {
      font-size: 2.125rem;
      margin-bottom: 0.25rem;
    }

    .hero-subtitle {
      font-size: 1.5rem;
      margin-bottom: var(--spacing-sm);
    }

    .hero-links {
      font-size: 17px;
    }

    .hero-container {
      gap: var(--spacing-xl);
    }

    .hero-content {
      gap: var(--spacing-sm);
    }

    .research-item h3 {
      font-size: 1.625rem;
    }

    .research-item p {
      font-size: 18px;
    }

    .education-section h3,
    .experience-section h3 {
      font-size: 1.625rem;
    }

    .publication h3 {
      font-size: 1.5rem;
    }

    .cv-section h3 {
      font-size: 1.5rem;
    }
  }
}

/* Print Styles */
@media print {
  header,
  .nav-toggle,
  .hero-buttons,
  .contact-form-container,
  .footer {
    display: none;
  }

  body {
    font-size: 12pt;
    line-height: 1.5;
  }

  .section {
    padding: 1rem 0;
    page-break-inside: avoid;
  }

  a {
    color: var(--color-text);
    text-decoration: underline;
  }

  .cv-section {
    page-break-inside: avoid;
  }
}