/* KD Portfolio - Modern Dark Theme */
:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #181a20;
  --bg-tertiary: #23272f;
  --bg-card: #181a20;
  --bg-light: #23272f;
  --bg-hover: #23272f;
  --text-primary: #fff;
  --text-secondary: #e0e0e0;
  --text-muted: #b0b0b0;
  --accent-primary: #00bfff;
  --accent-secondary: #0099cc;
  --accent-tertiary: #005577;
  --border-color: #23272f;
  --border-light: #2c2f36;
  --shadow-color: rgba(0,0,0,0.5);
  --shadow-card: 0 8px 32px rgba(0,0,0,0.3);
  --shadow-hover: 0 12px 40px rgba(0,0,0,0.4);
  --glass-bg: rgba(31,31,31,0.95);
  --glass-border: rgba(0,191,255,0.1);
  --hover-bg: rgba(0,191,255,0.08);
  --navbar-bg: rgba(10,10,10,0.98);
  --navbar-text: #fff;
  --navbar-text-hover: #00bfff;
  --blog-bg: #0a0a0a;
  --blog-card-bg: #181a20;
  --blog-border: #23272f;
  --blog-shadow: var(--shadow-card);
  --blog-shadow-hover: var(--shadow-hover);
  --gradient-hero: linear-gradient(135deg, #0a0a0a 0%, #181a20 50%, #23272f 100%);
  --gradient-card: linear-gradient(135deg, rgba(0,191,255,0.03) 0%, rgba(0,191,255,0.01) 100%);
  --transition-speed: 0.3s;
  --transition-timing: cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { 
  scroll-behavior: smooth; 
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-size: 16px;
}

/* Container */
.container { 
  max-width: 1200px; 
  margin: 0 auto; 
  padding: 0 20px; 
  position: relative; 
  z-index: 1; 
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(15, 18, 25, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 1000;
  padding: 1.1rem 0;
  border-bottom: 1.5px solid var(--border-color);
  box-shadow: 0 4px 24px rgba(0,0,0,0.18);
  transition: background 0.3s, box-shadow 0.3s;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo h2 {
  color: var(--accent-primary);
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.nav-logo h2 a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-speed) var(--transition-timing);
}

.nav-logo h2 a:hover {
  color: var(--accent-secondary);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2.2rem;
  align-items: center;
  transition: left 0.3s;
}

.nav-link {
  text-decoration: none;
  color: var(--navbar-text);
  font-weight: 500;
  font-size: 1.05rem;
  padding: 0.6rem 1.1rem;
  border-radius: 7px;
  position: relative;
  transition: background 0.2s, color 0.2s;
}

.nav-link::after {
  content: '';
  display: block;
  position: absolute;
  left: 0; 
  bottom: 0;
  width: 0; 
  height: 2px;
  background: var(--accent-primary);
  transition: width var(--transition-speed) var(--transition-timing);
}

.nav-link:hover, .nav-link.active {
  color: var(--accent-primary);
  background: var(--bg-light);
}

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

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
  z-index: 1100;
  background: none;
  border: none;
}

.bar {
  width: 28px;
  height: 3.5px;
  background: var(--navbar-text);
  border-radius: 2px;
  transition: 0.3s;
}

/* Hero Section */
.hero {
  min-height: 100vh; 
  display: flex; 
  align-items: center; 
  background: var(--gradient-hero);
  color: var(--text-primary); 
  padding-top: 80px; 
  position: relative; 
  overflow: hidden;
}

.hero-container { 
  max-width: 1200px; 
  margin: 0 auto; 
  padding: 0 20px; 
  display: grid; 
  grid-template-columns: 1fr 1fr; 
  gap: 4rem; 
  align-items: center;
}

.hero-content {
  z-index: 2;
}

.hero-title {
  font-size: 3rem; 
  font-weight: 700; 
  line-height: 1.2; 
  margin-bottom: 1.5rem; 
  color: var(--text-primary);
  font-family: 'Georgia', 'Times New Roman', serif;
}

.highlight {
  color: var(--accent-primary);
  font-weight: 700;
}

.hero-subtitle {
  font-size: 1.5rem; 
  font-weight: 600; 
  color: var(--text-secondary); 
  margin-bottom: 2rem;
  font-family: 'Georgia', 'Times New Roman', serif;
}

.hero-description {
  font-size: 1.1rem; 
  color: var(--text-muted); 
  margin-bottom: 3rem; 
  line-height: 1.8;
  max-width: 500px;
}

.hero-buttons { 
  display: flex; 
  gap: 1.5rem; 
  flex-wrap: wrap;
}

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

.profile-card {
  background: var(--bg-card); 
  border-radius: 12px; 
  padding: 3rem; 
  box-shadow: var(--shadow-card);
  border: 2px solid var(--border-color);
  text-align: center;
  transition: all var(--transition-speed) var(--transition-timing);
  position: relative;
  max-width: 400px;
  margin: 0 auto;
}

.profile-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--accent-primary);
}

.profile-avatar {
  position: relative; 
  margin-bottom: 2.5rem;
}

.profile-image {
  width: 180px; 
  height: 180px; 
  border-radius: 50%; 
  object-fit: cover; 
  border: 4px solid var(--border-color);
  transition: all var(--transition-speed) var(--transition-timing);
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

.profile-image:hover {
  border-color: var(--accent-primary);
  transform: scale(1.02);
}

.profile-overlay {
  position: absolute; 
  top: 0; 
  left: 0; 
  right: 0; 
  bottom: 0; 
  background: rgba(44,62,80,0.8); 
  border-radius: 50%; 
  display: flex; 
  align-items: center; 
  justify-content: center; 
  opacity: 0; 
  transition: opacity var(--transition-speed) var(--transition-timing);
}

.profile-avatar:hover .profile-overlay {
  opacity: 1;
}

.profile-info h3 {
  font-size: 1.4rem; 
  font-weight: 700; 
  color: var(--text-primary); 
  margin-bottom: 1rem;
  font-family: 'Georgia', 'Times New Roman', serif;
  line-height: 1.3;
}

.profile-info p {
  color: var(--text-muted); 
  margin-bottom: 2.5rem;
  font-size: 1.1rem;
  font-weight: 500;
}

.profile-links {
  display: flex; 
  justify-content: center; 
  gap: 1rem; 
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.profile-link {
  display: inline-flex; 
  align-items: center; 
  gap: 0.5rem; 
  padding: 0.875rem 1.5rem; 
  background: var(--bg-light); 
  color: var(--text-primary); 
  text-decoration: none; 
  border-radius: 8px; 
  font-weight: 600; 
  transition: all var(--transition-speed) var(--transition-timing);
  border: 1px solid var(--border-color);
  font-family: 'Georgia', 'Times New Roman', serif;
  font-size: 0.95rem;
}

.profile-link:hover {
  background: var(--bg-hover);
  border-color: var(--accent-primary);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.social-links {
  display: flex; 
  justify-content: center; 
  gap: 1rem;
}

.social-link {
  display: flex; 
  align-items: center; 
  justify-content: center; 
  width: 44px; 
  height: 44px; 
  background: var(--bg-light); 
  color: var(--text-primary); 
  border-radius: 8px; 
  text-decoration: none; 
  transition: all var(--transition-speed) var(--transition-timing);
  border: 1px solid var(--border-color);
}

.social-link:hover {
  background: var(--bg-hover);
  border-color: var(--accent-primary);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

/* Buttons */
.btn {
  display: inline-flex; 
  align-items: center; 
  gap: 0.5rem; 
  padding: 0.875rem 1.75rem; 
  background: var(--bg-card); 
  color: var(--text-primary); 
  text-decoration: none; 
  border: 2px solid var(--border-color); 
  border-radius: 6px; 
  font-weight: 600; 
  font-size: 1rem; 
  cursor: pointer; 
  transition: all var(--transition-speed) var(--transition-timing);
  font-family: 'Georgia', 'Times New Roman', serif;
}

.btn:hover {
  background: var(--bg-hover);
  border-color: var(--accent-primary);
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.btn:active {
  transform: translateY(1px);
}

.btn-secondary {
  background: transparent; 
  color: var(--text-primary); 
  border: 2px solid var(--border-color);
}

.btn-secondary:hover { 
  background: var(--hover-bg);
  border-color: var(--accent-primary);
}

/* Section Titles */
.section-title {
  font-size: 2.5rem; 
  font-weight: 700; 
  text-align: center; 
  margin-bottom: 3rem; 
  color: var(--text-primary);
  position: relative;
  font-family: 'Georgia', 'Times New Roman', serif;
}

.section-title::after {
  content: ''; 
  display: block; 
  width: 80px; 
  height: 3px; 
  background: var(--accent-primary); 
  margin: 1rem auto 0; 
  border-radius: 2px;
}

/* About Section */
.about {
  padding: 5rem 0; 
  background: var(--bg-secondary);
}

.about-space-container {
  position: relative; 
  min-height: 400px;
}

.space-icon {
  position: absolute; 
  font-size: 2rem; 
  color: var(--text-muted); 
  opacity: 0.3;
}

.icon-1 { top: 10%; left: 10%; }
.icon-2 { top: 20%; right: 15%; }
.icon-3 { bottom: 30%; left: 20%; }
.icon-4 { bottom: 20%; right: 10%; }

.space-planet {
  position: absolute; 
  width: 60px; 
  height: 60px; 
  border-radius: 50%; 
  background: var(--bg-tertiary); 
  border: 2px solid var(--border-color);
}

.planet-1 {
  top: 15%; 
  right: 25%; 
  width: 40px; 
  height: 40px;
}

.planet-2 {
  bottom: 25%; 
  left: 15%; 
  width: 50px; 
  height: 50px;
}

.about-content {
  background: var(--bg-card);
  border-radius: 16px;
  box-shadow: var(--shadow-card);
  padding: 2.5rem 2rem;
  margin-bottom: 3rem;
  border: 1.5px solid var(--border-color);
  max-width: 700px;
}

.about-text p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 0;
  line-height: 1.8;
}

.education-card {
  background: var(--bg-light);
  border-radius: 12px;
  padding: 2rem 1.5rem;
  box-shadow: var(--shadow-card);
  border: 1.5px solid var(--border-color);
  margin-bottom: 2rem;
  transition: box-shadow var(--transition-speed) var(--transition-timing), border-color var(--transition-speed) var(--transition-timing);
}

.education-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--accent-primary);
}

.education-item h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.education-item h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
}

.education-item p {
  color: var(--text-muted);
  margin-top: 0.5rem;
  line-height: 1.6;
}

.degree {
  font-weight: 600; 
  color: var(--accent-primary);
  background: var(--bg-light);
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  font-size: 0.9rem;
  display: inline-block;
  margin-top: 0.5rem;
  border: 1px solid var(--border-color);
}

/* Experience Section */
.experience {
  padding: 5rem 0;
}

.timeline {
  position: relative; 
  max-width: 900px; 
  margin: 0 auto;
}

.timeline::before {
  content: ''; 
  position: absolute; 
  left: 50%; 
  top: 0; 
  bottom: 0; 
  width: 2px; 
  background: var(--accent-primary); 
  transform: translateX(-50%);
  border-radius: 1px;
}

.timeline-item {
  position: relative; 
  margin-bottom: 3rem;
}

.timeline-item:nth-child(odd) .timeline-content,
.timeline-item:nth-child(even) .timeline-content {
  width: 45%; 
  padding: 2rem; 
  background: var(--bg-card); 
  border-radius: 8px; 
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-color);
  position: relative;
  transition: all var(--transition-speed) var(--transition-timing);
}

.timeline-content::before {
  content: ''; 
  position: absolute; 
  top: 50%; 
  width: 16px; 
  height: 16px; 
  background: var(--accent-primary); 
  border-radius: 50%; 
  transform: translateY(-50%);
  border: 3px solid var(--bg-primary);
}

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

.timeline-item:nth-child(odd) .timeline-content::before {
  right: -40px;
}

.timeline-item:nth-child(even) .timeline-content {
  left: 55%;
}

.timeline-item:nth-child(even) .timeline-content::before {
  left: -40px;
}

.timeline-content:hover {
  box-shadow: var(--shadow-hover);
}

.timeline-content h3 {
  font-size: 1.3rem; 
  font-weight: 700; 
  color: var(--text-primary); 
  margin-bottom: 0.75rem;
  font-family: 'Georgia', 'Times New Roman', serif;
}

.timeline-content:hover h3 {
  color: var(--accent-primary);
}

.timeline-content h4 {
  font-size: 1rem; 
  font-weight: 600; 
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  font-family: 'Georgia', 'Times New Roman', serif;
}

.timeline-content .dates {
  color: var(--text-muted); 
  font-size: 0.9rem; 
  margin-bottom: 1rem;
  font-weight: 500;
}

.timeline-content ul {
  list-style: none;
}

.timeline-content li {
  color: var(--text-secondary); 
  margin-bottom: 0.5rem; 
  padding-left: 1.5rem; 
  position: relative;
  line-height: 1.6;
}

.timeline-content li::before {
  content: '•'; 
  position: absolute; 
  left: 0; 
  color: var(--accent-primary);
  font-weight: bold;
}

.learn-more-btn {
  display: inline-flex; 
  align-items: center; 
  gap: 0.5rem; 
  padding: 0.5rem 1rem; 
  background: var(--bg-light); 
  color: var(--text-primary); 
  text-decoration: none; 
  border-radius: 4px; 
  font-size: 0.9rem; 
  font-weight: 600; 
  margin-top: 1rem; 
  transition: all var(--transition-speed) var(--transition-timing);
  border: 1px solid var(--border-color);
  font-family: 'Georgia', 'Times New Roman', serif;
}

.learn-more-btn:hover {
  background: var(--bg-hover);
  border-color: var(--accent-primary);
}

.learn-more-btn i {
  font-size: 0.8rem;
}

/* Modal */
.modal {
  display: none; 
  position: fixed; 
  z-index: 2000; 
  left: 0; 
  top: 0; 
  width: 100%; 
  height: 100%; 
  background-color: rgba(0,0,0,0.5);
}

.modal-content {
  background-color: var(--bg-primary); 
  margin: 5% auto; 
  padding: 0; 
  border-radius: 12px; 
  width: 90%; 
  max-width: 600px; 
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  border: 1px solid var(--border-color);
}

.close {
  color: var(--text-muted); 
  float: right; 
  font-size: 28px; 
  font-weight: bold; 
  padding: 1rem; 
  cursor: pointer; 
  transition: color var(--transition-speed) var(--transition-timing);
}

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

.modal-header {
  padding: 1.5rem 2rem 1rem; 
  border-bottom: 1px solid var(--border-color);
}

.modal-title {
  font-size: 1.5rem; 
  font-weight: 700; 
  color: var(--text-primary); 
  margin-bottom: 0.5rem;
}

.modal-subtitle {
  font-size: 1rem; 
  font-weight: 600; 
  color: var(--text-secondary);
}

.modal-dates {
  color: var(--text-muted); 
  font-size: 0.9rem;
}

.modal-body {
  padding: 1.5rem 2rem 2rem;
}

.modal-body h4 {
  font-size: 1.1rem; 
  font-weight: 600; 
  color: var(--text-primary); 
  margin-bottom: 1rem;
}

.modal-body ul {
  list-style: none;
}

.modal-body li {
  color: var(--text-secondary); 
  margin-bottom: 0.5rem; 
  padding-left: 1.5rem; 
  position: relative;
}

.modal-body li::before {
  content: '•'; 
  position: absolute; 
  left: 0; 
  color: var(--accent-primary);
}

/* Projects Section */
.projects {
  padding: 5rem 0; 
  background: var(--bg-secondary);
}

.projects-grid {
  display: grid; 
  grid-template-columns: repeat(3, 1fr); 
  gap: 2rem; 
  margin-bottom: 3rem;
}

.project-card {
  background: var(--bg-card); 
  border-radius: 8px; 
  padding: 2rem; 
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-color);
  transition: all var(--transition-speed) var(--transition-timing);
  position: relative;
}

.project-card:hover {
  box-shadow: var(--shadow-hover);
}

.project-icon {
  width: 60px; 
  height: 60px; 
  background: var(--bg-light); 
  border-radius: 8px; 
  display: flex; 
  align-items: center; 
  justify-content: center; 
  margin-bottom: 1.5rem; 
  font-size: 1.5rem; 
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  transition: all var(--transition-speed) var(--transition-timing);
}

.project-card:hover .project-icon {
  background: var(--bg-hover);
  border-color: var(--accent-primary);
}

.project-card h3 {
  font-size: 1.3rem; 
  font-weight: 700; 
  color: var(--text-primary); 
  margin-bottom: 1rem;
  line-height: 1.3;
  font-family: 'Georgia', 'Times New Roman', serif;
}

.project-card p {
  color: var(--text-secondary); 
  margin-bottom: 1.5rem; 
  line-height: 1.6;
}

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

.tag {
  padding: 0.25rem 0.75rem; 
  background: var(--bg-light); 
  color: var(--text-primary); 
  border-radius: 4px; 
  font-size: 0.85rem; 
  font-weight: 500;
  border: 1px solid var(--border-color);
  transition: all var(--transition-speed) var(--transition-timing);
}

.tag:hover {
  background: var(--bg-hover);
  border-color: var(--accent-primary);
}

.project-actions {
  display: flex; 
  gap: 1rem; 
  align-items: center;
}

.project-actions .learn-more-btn {
  margin-top: 0;
}

.github-link {
  display: flex; 
  align-items: center; 
  gap: 0.5rem; 
  padding: 0.5rem 1rem; 
  background: var(--bg-light); 
  color: var(--text-primary); 
  text-decoration: none; 
  border-radius: 4px; 
  font-size: 0.9rem; 
  font-weight: 600; 
  transition: all var(--transition-speed) var(--transition-timing);
  border: 1px solid var(--border-color);
  font-family: 'Georgia', 'Times New Roman', serif;
}

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

.github-link i {
  font-size: 0.8rem;
}

/* Skills Section */
.skills {
  padding: 5rem 0;
}

.skills-grid-container {
  max-width: 1000px; 
  margin: 0 auto;
}

.skills-grid { 
  display: grid; 
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); 
  gap: 1.5rem; 
  margin-bottom: 3rem;
}

.skill-logo-card { 
  background: var(--bg-card); 
  border-radius: 8px; 
  padding: 1.5rem; 
  text-align: center; 
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-color);
  transition: all var(--transition-speed) var(--transition-timing);
  position: relative;
}

.skill-logo-card:hover { 
  box-shadow: var(--shadow-hover);
}

.skill-logo-card img {
  width: 50px; 
  height: 50px; 
  object-fit: contain; 
  margin-bottom: 1rem;
  transition: transform var(--transition-speed) var(--transition-timing);
}

.skill-logo-card:hover img {
  transform: scale(1.05);
}

.skill-name { 
  font-size: 0.9rem; 
  font-weight: 600; 
  color: var(--text-primary);
  font-family: 'Georgia', 'Times New Roman', serif;
}

/* Skills Compact Section */
.skills-compact {
  padding: 5rem 0;
  background: var(--bg-secondary);
}

.skills-compact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.skills-compact-category h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  text-align: center;
  position: relative;
  font-family: 'Georgia', 'Times New Roman', serif;
}

.skills-compact-category h3::after {
  content: '';
  position: absolute;
  bottom: -0.5rem;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 2px;
  background: var(--accent-primary);
  border-radius: 1px;
}

.skills-compact-items {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.skill-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: var(--bg-card);
  color: var(--text-primary);
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  border: 1px solid var(--border-color);
  transition: all var(--transition-speed) var(--transition-timing);
  box-shadow: var(--shadow-card);
  font-family: 'Georgia', 'Times New Roman', serif;
}

.skill-tag i {
  font-size: 1rem;
  color: var(--text-secondary);
  transition: color var(--transition-speed) var(--transition-timing);
}

.skill-tag:hover {
  background: var(--bg-hover);
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-hover);
}

.skill-tag:hover i {
  color: var(--accent-primary);
}

/* Recent Blogs Section */
.recent-blogs { 
  padding: 5rem 0; 
  background: var(--bg-secondary);
}

.recent-blogs-grid {
  display: grid; 
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr)); 
  gap: 2rem; 
  margin-bottom: 3rem;
}

.recent-blog-card { 
  background: var(--bg-card); 
  border-radius: 12px; 
  padding: 2rem; 
  box-shadow: var(--blog-shadow);
  border: 1px solid var(--border-color);
  transition: box-shadow var(--transition-speed) var(--transition-timing);
}

.recent-blog-card:hover { 
  box-shadow: var(--blog-shadow-hover);
}

.recent-blog-title { 
  font-size: 1.25rem; 
  font-weight: 700; 
  color: var(--text-primary); 
  margin-bottom: 1rem;
}

.recent-blog-excerpt { 
  color: var(--text-secondary); 
  margin-bottom: 1rem;
}

.recent-blog-meta { 
  color: var(--text-muted); 
  font-size: 0.9rem;
}

.recent-blogs-footer {
  text-align: center;
}

/* Honors & Awards Section */
.honors {
  padding: 5rem 0;
}

.honors-grid {
  display: grid; 
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); 
  gap: 2rem; 
  margin-bottom: 3rem;
}

.honor-card {
  background: var(--bg-card); 
  border-radius: 8px; 
  padding: 2rem; 
  text-align: center; 
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-color);
  transition: all var(--transition-speed) var(--transition-timing);
}

.honor-card:hover {
  box-shadow: var(--shadow-hover);
}

.honor-icon {
  width: 60px; 
  height: 60px; 
  background: var(--bg-light); 
  border-radius: 50%; 
  display: flex; 
  align-items: center; 
  justify-content: center; 
  margin: 0 auto 1.5rem; 
  font-size: 1.5rem; 
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.honor-card h3 {
  font-size: 1.3rem; 
  font-weight: 700; 
  color: var(--text-primary); 
  margin-bottom: 1rem;
  font-family: 'Georgia', 'Times New Roman', serif;
}

.honor-card p {
  color: var(--text-secondary); 
  line-height: 1.6;
}

/* Certificates Section */
.certificates {
  padding: 5rem 0; 
  background: var(--bg-secondary);
}

.certificates-grid {
  display: grid; 
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); 
  gap: 2rem; 
  margin-bottom: 3rem;
}

.certificate-card {
  background: var(--bg-card); 
  border-radius: 8px; 
  padding: 2rem; 
  text-align: center; 
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-color);
  transition: all var(--transition-speed) var(--transition-timing);
}

.certificate-card:hover {
  box-shadow: var(--shadow-hover);
}

.certificate-icon {
  width: 60px; 
  height: 60px; 
  background: var(--bg-light); 
  border-radius: 50%; 
  display: flex; 
  align-items: center; 
  justify-content: center; 
  margin: 0 auto 1.5rem; 
  font-size: 1.5rem; 
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.certificate-card h3 {
  font-size: 1.3rem; 
  font-weight: 700; 
  color: var(--text-primary); 
  margin-bottom: 1rem;
  font-family: 'Georgia', 'Times New Roman', serif;
}

.certificate-card p {
  color: var(--text-secondary); 
  margin-bottom: 1.5rem;
}

.certificate-link {
  display: inline-flex; 
  align-items: center; 
  gap: 0.5rem; 
  padding: 0.75rem 1.25rem; 
  background: var(--bg-light); 
  color: var(--text-primary); 
  text-decoration: none; 
  border-radius: 6px; 
  font-weight: 600; 
  transition: all var(--transition-speed) var(--transition-timing);
  border: 1px solid var(--border-color);
  font-family: 'Georgia', 'Times New Roman', serif;
}

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

/* Publications Section */
.publications {
  padding: 5rem 0;
}

.publications-grid {
  display: grid; 
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr)); 
  gap: 2rem; 
  margin-bottom: 3rem;
}

.publication-card {
  background: var(--bg-card); 
  border-radius: 8px; 
  padding: 2rem; 
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-color);
  transition: all var(--transition-speed) var(--transition-timing);
}

.publication-card:hover {
  box-shadow: var(--shadow-hover);
}

.publication-icon {
  width: 60px; 
  height: 60px; 
  background: var(--bg-light); 
  border-radius: 8px; 
  display: flex; 
  align-items: center; 
  justify-content: center; 
  margin-bottom: 1.5rem; 
  font-size: 1.5rem; 
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.publication-card h3 {
  font-size: 1.3rem; 
  font-weight: 700; 
  color: var(--text-primary); 
  margin-bottom: 1rem;
  font-family: 'Georgia', 'Times New Roman', serif;
}

.publication-card .authors {
  color: var(--text-secondary); 
  font-size: 0.95rem; 
  margin-bottom: 0.5rem;
}

.publication-card .journal {
  color: var(--text-muted); 
  font-size: 0.9rem; 
  margin-bottom: 1rem;
}

.publication-status {
  display: flex; 
  gap: 0.5rem;
}

.status-badge {
  padding: 0.25rem 0.75rem; 
  background: var(--bg-light); 
  color: var(--text-primary); 
  border-radius: 4px; 
  font-size: 0.8rem; 
  font-weight: 500;
  border: 1px solid var(--border-color);
}

/* Contact Section */
.contact {
  padding: 5rem 0; 
  background: var(--bg-secondary);
}

.contact-content {
  display: grid; 
  grid-template-columns: 1fr 1fr; 
  gap: 4rem; 
  max-width: 1000px; 
  margin: 0 auto;
}

.contact-info {
  display: flex; 
  flex-direction: column; 
  gap: 2rem;
}

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

.contact-icon {
  width: 50px; 
  height: 50px; 
  background: var(--bg-light); 
  border-radius: 50%; 
  display: flex; 
  align-items: center; 
  justify-content: center; 
  font-size: 1.25rem; 
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.contact-details h3 { 
  font-size: 1.1rem; 
  font-weight: 600; 
  color: var(--text-primary); 
  margin-bottom: 0.25rem;
  font-family: 'Georgia', 'Times New Roman', serif;
}

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

.contact-details a { 
  color: var(--accent-primary); 
  text-decoration: none;
}

.contact-details a:hover { 
  text-decoration: underline;
}

.contact-form {
  background: var(--bg-card); 
  border-radius: 8px; 
  padding: 2rem; 
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-color);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
  width: 100%; 
  padding: 0.875rem; 
  border: 1px solid var(--border-color); 
  border-radius: 6px; 
  background: var(--bg-light); 
  color: var(--text-primary); 
  font-size: 1rem;
  font-family: 'Georgia', 'Times New Roman', serif;
}

.form-group input.error {
  border-color: #dc3545;
}

.field-error {
  color: #dc3545; 
  font-size: 0.85rem; 
  margin-top: 0.25rem;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none; 
  border-color: var(--accent-primary); 
  box-shadow: 0 0 0 3px rgba(0,191,255,0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.btn:disabled {
  background: var(--text-muted); 
  cursor: not-allowed;
}

.btn:disabled:hover {
  background: var(--text-muted);
}

/* Footer */
.footer { 
  background: var(--bg-card); 
  border-top: 1px solid var(--border-color); 
  padding: 2rem 0; 
  text-align: center;
}

.footer-content {
  max-width: 1200px; 
  margin: 0 auto; 
  padding: 0 20px; 
  display: flex; 
  justify-content: space-between; 
  align-items: center;
}

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

.footer-links a { 
  color: var(--text-secondary); 
  text-decoration: none;
  font-family: 'Georgia', 'Times New Roman', serif;
}

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

/* Responsive Design */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr; 
    text-align: center; 
    gap: 2rem;
  }
  
  .about-content {
    padding: 0 1rem;
  }
  
  .contact-content {
    grid-template-columns: 1fr; 
    gap: 2rem;
  }
  
  .timeline::before {
    left: 30px;
  }
  
  .timeline-item:nth-child(odd) .timeline-content,
  .timeline-item:nth-child(even) .timeline-content {
    width: calc(100% - 60px); 
    left: 60px;
  }
  
  .timeline-item:nth-child(odd) .timeline-content::before,
  .timeline-item:nth-child(even) .timeline-content::before {
    left: -45px;
  }
  
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed; 
    top: 70px; 
    left: -100%; 
    width: 100%; 
    height: calc(100vh - 70px); 
    background: var(--navbar-bg); 
    flex-direction: column; 
    justify-content: flex-start; 
    align-items: center; 
    padding-top: 2rem; 
    transition: left var(--transition-speed) var(--transition-timing);
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .hamburger {
    display: flex;
  }
  
  .hamburger.active .bar:nth-child(2) {
    opacity: 0;
  }
  
  .hamburger.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  
  .hamburger.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-subtitle {
    font-size: 1.25rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .container {
    padding: 0 15px;
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-content {
    flex-direction: column; 
    gap: 1rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-subtitle {
    font-size: 1.1rem;
  }
  
  .section-title {
    font-size: 1.75rem;
  }
  
  .container {
    padding: 0 10px;
  }
  
  .profile-card,
  .project-card,
  .honor-card,
  .certificate-card,
  .publication-card,
  .recent-blog-card {
    padding: 1.5rem;
  }
  
  .hero-buttons {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
  
  .project-tags {
    flex-direction: column;
  }
  
  .tag {
    align-self: flex-start;
  }
  
  .social-links {
    flex-wrap: wrap;
  }
  
  .social-link {
    width: 35px;
    height: 35px;
  }
  
  .form-group input,
  .form-group textarea {
    font-size: 16px;
  }
  
  .modal-content {
    width: 95%;
    margin: 10% auto;
  }
  
  .modal-header {
    padding: 1rem 1.5rem 0.5rem;
  }
  
  .modal-body {
    padding: 1rem 1.5rem 1.5rem;
  }
}

/* Accessibility */
.sr-only {
  position: absolute; 
  width: 1px; 
  height: 1px; 
  padding: 0; 
  margin: -1px; 
  overflow: hidden; 
  clip: rect(0, 0, 0, 0); 
  white-space: nowrap; 
  border: 0;
}

.skip-link {
  position: absolute; 
  top: -40px; 
  left: 6px; 
  background: var(--accent-primary); 
  color: white; 
  padding: 8px; 
  text-decoration: none; 
  border-radius: 4px; 
  z-index: 1001;
}

.skip-link:focus {
  top: 6px;
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  :root {
    --bg-primary: #ffffff;
    --bg-secondary: #f0f0f0;
    --text-primary: #000000;
    --text-secondary: #000000;
    --border-color: #000000;
  }
  
  .btn,
  .nav-link:hover,
  .nav-link.active {
    border: 2px solid var(--text-primary);
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Print Styles */
@media print {
  .navbar,
  .hero-buttons,
  .social-links,
  .contact-form,
  .footer {
    display: none !important;
  }
  
  .hero {
    min-height: auto;
    padding: 2rem 0;
  }
  
  .hero-container {
    grid-template-columns: 1fr;
  }
  
  .profile-card {
    box-shadow: none;
    border: 1px solid #000;
  }
  
  .project-card,
  .honor-card,
  .certificate-card,
  .publication-card,
  .recent-blog-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #000;
  }
  
  body {
    background: white;
    color: black;
  }
  
  .section-title {
    color: black;
  }
  
  a {
    color: black;
    text-decoration: underline;
  }
}

/* Competitions Section */
.competitions {
  padding: 5rem 0;
}

.competitions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.competition-card {
  background: var(--bg-card);
  border-radius: 8px;
  padding: 2rem;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-color);
  transition: all var(--transition-speed) var(--transition-timing);
}

.competition-card:hover {
  box-shadow: var(--shadow-hover);
}

.competition-icon {
  width: 60px;
  height: 60px;
  background: var(--bg-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.competition-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
  line-height: 1.4;
  font-family: 'Georgia', 'Times New Roman', serif;
}

.competition-authors {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
  line-height: 1.5;
}

.competition-details {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.competition-role {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}

.role-badge {
  padding: 0.25rem 0.75rem;
  background: var(--bg-light);
  color: var(--text-primary);
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 600;
  border: 1px solid var(--border-color);
}

.project-name {
  padding: 0.25rem 0.75rem;
  background: var(--accent-primary);
  color: var(--bg-card);
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 600;
}

/* Presentations Section */
.presentations {
  padding: 5rem 0;
  background: var(--bg-secondary);
}

.presentations-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.presentation-card {
  background: var(--bg-card);
  border-radius: 8px;
  padding: 2rem;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-color);
  transition: all var(--transition-speed) var(--transition-timing);
}

.presentation-card:hover {
  box-shadow: var(--shadow-hover);
}

.presentation-icon {
  width: 60px;
  height: 60px;
  background: var(--bg-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.presentation-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
  font-family: 'Georgia', 'Times New Roman', serif;
}

.presentation-details {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
  line-height: 1.5;
}

.presentation-date {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
}

/* Show More Container */
.show-more-container {
  text-align: center;
  margin-top: 2rem;
}

.show-more-container .btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--border-color);
  border-radius: 6px;
  font-weight: 600;
  transition: all var(--transition-speed) var(--transition-timing);
  font-family: 'Georgia', 'Times New Roman', serif;
}

.show-more-container .btn:hover {
  background: var(--hover-bg);
  border-color: var(--accent-primary);
}

.show-more-container .btn i {
  transition: transform var(--transition-speed) var(--transition-timing);
}

.show-more-container .btn.expanded i {
  transform: rotate(180deg);
}

/* Hidden Elements */
.hidden-project,
.hidden-certificate {
  display: none;
}

.hidden-project.show,
.hidden-certificate.show {
  display: block;
}

.hidden-experience {
  display: none;
}

.hero-banner {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  /* background: var(--bg-card); */
  border-radius: 20px;
  box-shadow: var(--shadow-card);
  padding: 2.5rem 2rem;
  margin: 2rem auto 3rem auto;
  max-width: 900px;
  border: 1.5px solid var(--border-color);
}

.profile-banner-photo {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--accent-primary);
  box-shadow: 0 4px 24px rgba(0,0,0,0.18);
  background: var(--bg-light);
}

.profile-banner-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.hero-title {
  font-size: 2.3rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--accent-primary);
  font-weight: 600;
  margin-bottom: 0.1rem;
}

.hero-affiliation {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 1.1rem;
}

.profile-banner-links {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.1rem;
  flex-wrap: wrap;
}

.profile-banner-btn {
  font-size: 1rem;
  padding: 0.7rem 1.3rem;
  border-radius: 8px;
  font-weight: 600;
}

.profile-banner-socials {
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
}

.profile-banner-socials .social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-light);
  color: var(--accent-primary);
  border-radius: 50%;
  font-size: 1.2rem;
  border: 1.5px solid var(--border-color);
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.2s;
}

.profile-banner-socials .social-link:hover {
  background: var(--accent-primary);
  color: var(--bg-card);
  border-color: var(--accent-primary);
  transform: translateY(-2px) scale(1.08);
}

@media (max-width: 700px) {
  .hero-banner {
    flex-direction: column;
    align-items: center;
    padding: 2rem 1rem;
    gap: 1.5rem;
  }
  .profile-banner-photo {
    width: 110px;
    height: 110px;
  }
  .profile-banner-info {
    align-items: center;
    text-align: center;
  }
  .profile-banner-links {
    justify-content: center;
  }
  .profile-banner-socials {
    justify-content: center;
  }
}

.hero-flex {
  display: flex;
  align-items: stretch;
  gap: 2.5rem;
  max-width: 1200px;
  margin: 0 auto 3rem auto;
  padding: 2rem 0 0 0;
}

.hero-about-edu-card {
  flex: 1.2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--bg-card);
  border-radius: 20px;
  box-shadow: var(--shadow-card);
  padding: 2.5rem 2rem;
  border: 1.5px solid var(--border-color);
  min-width: 320px;
  max-width: 600px;
  gap: 2rem;
}

.hero-about-edu-card .about-text {
  margin-bottom: 0.5rem;
}

.hero-about-edu-card .about-text p {
  font-size: 1.08rem;
  color: var(--text-secondary);
  margin-bottom: 0.7rem;
  line-height: 1.7;
}

@media (max-width: 1100px) {
  .hero-flex {
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    padding: 1.5rem 0 0 0;
  }
  .hero-about-edu-card {
    max-width: 100%;
    min-width: 0;
    width: 100%;
    padding: 2rem 1rem;
  }
}

.aboutme-card {
  background: var(--bg-card);
  border-radius: 18px;
  box-shadow: var(--shadow-card);
  padding: 2.5rem 2rem;
  max-width: 700px;
  margin: 2.5rem auto 3rem auto;
  border: 1.5px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 2.2rem;
}

.aboutme-text p {
  font-size: 1.13rem;
  color: var(--text-secondary);
  margin-bottom: 0.7rem;
  line-height: 1.8;
}

.aboutme-education {
  background: var(--bg-light);
  border-radius: 12px;
  padding: 1.3rem 1.2rem 1.1rem 1.2rem;
  box-shadow: 0 2px 10px rgba(0,0,0,0.10);
  border: 1.2px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.aboutme-education h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.aboutme-edu-details {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.aboutme-edu-school {
  font-weight: 600;
  color: var(--accent-primary);
  font-size: 1.05rem;
}

.aboutme-edu-degree {
  font-size: 1rem;
  color: var(--text-primary);
  font-weight: 500;
}

.aboutme-edu-minor,
.aboutme-edu-dates {
  font-size: 0.97rem;
  color: var(--text-secondary);
}

@media (max-width: 700px) {
  .aboutme-card {
    padding: 1.3rem 0.7rem;
    max-width: 98vw;
  }
  .aboutme-education {
    padding: 1rem 0.7rem;
  }
}

.nav-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 18, 25, 0.7);
  backdrop-filter: blur(6px);
  z-index: 999;
  transition: opacity 0.3s;
  opacity: 0;
}

.nav-overlay.active {
  display: block;
  opacity: 1;
}

@media (max-width: 900px) {
  .nav-menu.active ~ .nav-overlay,
  .hamburger.active ~ .nav-overlay {
    display: block;
    opacity: 1;
  }
}