/* Global Styles */
:root {
  --primary-color: #6d28d9;
  --secondary-color: #4f46e5;
  --accent-color: #8b5cf6;
  --dark-bg: #0f172a;
  --darker-bg: #020617;
  --light-text: #f8fafc;
  --muted-text: #94a3b8;
  --border-color: #334155;
  --card-bg: rgba(30, 41, 59, 0.7);
  --gradient-start: #4338ca;
  --gradient-end: #6d28d9;
  --success-color: #10b981;
  --error-color: #ef4444;
  --transition-speed: 0.3s;
  --border-radius: 8px;
  --box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: 'Roboto', sans-serif;
  background-color: var(--darker-bg);
  color: var(--light-text);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 1rem;
}

a {
  text-decoration: none;
  color: var(--light-text);
  transition: color var(--transition-speed) ease;
}

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

ul {
  list-style: none;
}

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

.section {
  padding: 6rem 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  font-size: 2.5rem;
  color: var(--light-text);
  display: inline-block;
  margin-bottom: 1rem;
}

.section-line {
  width: 80px;
  height: 4px;
  background: linear-gradient(to right, var(--gradient-start), var(--gradient-end));
  margin: 0 auto;
  border-radius: 2px;
}

/* Particles Background */
.particles-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background-color: var(--darker-bg);
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background-color: rgba(2, 6, 23, 0.9);
  backdrop-filter: blur(10px);
  padding: 1rem 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.navbar.scrolled {
  padding: 0.5rem 0;
  background-color: rgba(2, 6, 23, 0.95);
}

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

.logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary-color);
  letter-spacing: 1px;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
}

.nav-links a {
  position: relative;
  padding: 0.5rem 0;
  font-weight: 500;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(to right, var(--gradient-start), var(--gradient-end));
  transition: width 0.3s ease;
}

.nav-links a:hover::after {
  width: 100%;
}

.hamburger {
  display: none;
  cursor: pointer;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 20px;
}

.hamburger span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--light-text);
  transition: all 0.3s ease;
}

/* Hero Section */
header {
  height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 80px;
}

.profile-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.profile-text h1 {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  color: var(--light-text);
  background: none;
  -webkit-background-clip: unset;
  background-clip: unset;
  position: static;
}



.glitch {
  position: relative;
}

.glitch {
  position: relative;
  font-size: 3.5rem;
  background: linear-gradient(to right, #f5f5f5, #a5b4fc);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}


.tagline-container {
  display: flex;
  align-items: center;
  margin-bottom: 1.5rem;
}

.tagline {
  font-size: 1.5rem;
  color: var(--accent-color);
  margin-right: 1rem;
  font-weight: 500;
}

.animated-bar {
  width: 3px;
  height: 25px;
  background-color: var(--primary-color);
  animation: blink 1s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.intro-text {
  font-size: 1.1rem;
  color: var(--muted-text);
  margin-bottom: 2rem;
  max-width: 90%;
}

.header-cta {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
}

.primary-btn, .secondary-btn {
  padding: 0.8rem 1.5rem;
  border-radius: var(--border-radius);
  font-weight: 500;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.primary-btn {
  background: linear-gradient(to right, var(--gradient-start), var(--gradient-end));
  color: var(--light-text);
  border: none;
}

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

.primary-btn:hover, .secondary-btn:hover {
  transform: translateY(-3px);
  box-shadow: var(--box-shadow);
}

.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tech-badge {
  background-color: rgba(79, 70, 229, 0.2);
  color: var(--light-text);
  padding: 0.4rem 0.8rem;
  border-radius: 50px;
  font-size: 0.8rem;
  border: 1px solid rgba(79, 70, 229, 0.3);
}

.profile-image {
  text-align: center;
}

.image-container {
  position: relative;
  width: 500px;  /* increased size */
  height: 500px;
  margin: auto;
}

/* Rotating Hexagon */
.hexagon-border {
  width: 100%;
  height: 100%;
  background: linear-gradient(45deg, var(--gradient-start), var(--gradient-end));
  clip-path: polygon(50% 0%, 93% 25%, 93% 75%, 50% 100%, 7% 75%, 7% 25%);
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(0deg); /* reset on base */
  animation: rotate 12s linear infinite;
  z-index: 1;
}

/* Rotation animation */
@keyframes rotate {
  0% { transform: translate(-50%, -50%) rotate(0deg); }
  100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Profile Picture (circular, on top of hexagon) */
.profile-pic {
  width: 80%;
  height: 80%;
  object-fit: cover;
  border-radius: 50%;
  border: 5px solid white;
  position: absolute;
  top: 10%;
  left: 10%;
  transform: translate(-50%, -50%);
  z-index: 2;
}


.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  animation: bounce 2s infinite;
}

.mouse {
  width: 30px;
  height: 50px;
  border: 2px solid var(--light-text);
  border-radius: 20px;
  position: relative;
}

.wheel {
  width: 6px;
  height: 10px;
  background-color: var(--light-text);
  border-radius: 3px;
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  animation: scroll 1.5s infinite;
}

@keyframes scroll {
  0% { transform: translateX(-50%) translateY(0); opacity: 1; }
  100% { transform: translateX(-50%) translateY(20px); opacity: 0; }
}

.arrow {
  margin-top: 10px;
}

.arrow span {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--light-text);
  margin-bottom: 5px;
}

.arrow span:first-child {
  transform: rotate(45deg) translateX(7px);
}

.arrow span:last-child {
  transform: rotate(-45deg) translateX(-7px);
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-20px); }
  60% { transform: translateX(-50%) translateY(-10px); }
}

/* About Section */
.about-content {
  background-color: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 3rem;
  border: 1px solid var(--border-color);
  box-shadow: var(--box-shadow);
}

.about-text p {
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

.highlight {
  color: var(--accent-color);
  font-weight: 500;
}

.personal-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.info-item {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.info-title {
  font-weight: 600;
  color: var(--accent-color);
}

.info-detail a {
  color: var(--light-text);
  transition: color 0.3s ease;
}

.info-detail a:hover {
  color: var(--primary-color);
}

.download-resume {
  margin-top: 2rem;
}

.download-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--primary-color);
  color: var(--light-text);
  padding: 0.8rem 1.5rem;
  border-radius: var(--border-radius);
  font-weight: 500;
  transition: background-color 0.3s ease, transform 0.3s ease;
}

.download-btn:hover {
  background-color: var(--secondary-color);
  transform: translateY(-3px);
}

.download-icon {
  display: inline-block;
  width: 16px;
  height: 16px;
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="white"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 10v6m0 0l-3-3m3 3l3-3m2 8H7a2 2 0 01-2-2V5a2 2 0 012-2h5.586a1 1 0 01.707.293l5.414 5.414a1 1 0 01.293.707V19a2 2 0 01-2 2z" /></svg>');
}

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

.timeline::after {
  content: '';
  position: absolute;
  width: 4px;
  background: linear-gradient(to bottom, var(--gradient-start), var(--gradient-end));
  top: 0;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  margin-bottom: 4rem;
}

.timeline-icon {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(to right, var(--gradient-start), var(--gradient-end));
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
  box-shadow: 0 0 0 5px var(--darker-bg);
}

.icon-content {
  color: var(--light-text);
  font-weight: 600;
  font-size: 1rem;
}

.timeline-content {
  position: relative;
  width: 45%;
  padding: 2rem;
  background-color: var(--card-bg);
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
  box-shadow: var(--box-shadow);
}

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

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

.timeline-date {
  color: var(--accent-color);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.timeline-title {
  font-size: 1.3rem;
  margin-bottom: 0.3rem;
}

.timeline-subtitle {
  color: var(--muted-text);
  font-weight: 400;
  margin-bottom: 1rem;
}

.timeline-description {
  margin-bottom: 1rem;
}

.timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  background-color: rgba(79, 70, 229, 0.2);
  color: var(--light-text);
  padding: 0.3rem 0.6rem;
  border-radius: 50px;
  font-size: 0.8rem;
  border: 1px solid rgba(79, 70, 229, 0.3);
}

.timeline-list {
  padding-left: 1.2rem;
  margin-bottom: 1rem;
}

.timeline-list li {
  position: relative;
  margin-bottom: 0.5rem;
}

.timeline-list li::before {
  content: "•";
  color: var(--primary-color);
  font-weight: bold;
  position: absolute;
  left: -1.2rem;
}

.reveal-right {
  opacity: 0;
  transform: translateX(50px);
  animation: reveal-right 1s forwards;
}

.reveal-left {
  opacity: 0;
  transform: translateX(-50px);
  animation: reveal-left 1s forwards;
}

@keyframes reveal-right {
  to { opacity: 1; transform: translateX(0); }
}

@keyframes reveal-left {
  to { opacity: 1; transform: translateX(0); }
}

/* Projects Section */
.project-filters {
  display: flex;
  justify-content: center;
  margin-bottom: 3rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.filter-btn {
  background-color: transparent;
  border: 1px solid var(--border-color);
  color: var(--light-text);
  padding: 0.6rem 1.2rem;
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.filter-btn.active, .filter-btn:hover {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2rem;
}

.project-card {
  background-color: var(--card-bg);
  border-radius: var(--border-radius);
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.project-image {
  height: 200px;
  position: relative;
  overflow: hidden;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.project-card:hover .project-image img {
  transform: scale(1.05);
}

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 1rem;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.project-card:hover .project-overlay {
  opacity: 1;
}

.project-links {
  display: flex;
  gap: 1rem;
}

.project-link {
  background-color: var(--primary-color);
  color: var(--light-text);
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  font-size: 0.9rem;
  transition: background-color 0.3s ease;
}

.project-link:hover {
  background-color: var(--secondary-color);
  color: var(--light-text);
}

.project-info {
  padding: 1.5rem;
}

.project-info h3 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}

.project-info p {
  color: var(--muted-text);
  margin-bottom: 1rem;
}

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

/* Project Modal */
.project-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);
  z-index: 1000;
  overflow-y: auto;
}

.modal-content {
  position: relative;
  background-color: var(--dark-bg);
  margin: 5% auto;
  padding: 2rem;
  border-radius: var(--border-radius);
  max-width: 800px;
  width: 90%;
  border: 1px solid var(--border-color);
  box-shadow: var(--box-shadow);
}

.close-modal {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 2rem;
  color: var(--light-text);
  cursor: pointer;
  transition: color 0.3s ease;
}

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

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

.publication-item {
  display: flex;
  gap: 2rem;
  background-color: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 2rem;
  border: 1px solid var(--border-color);
  box-shadow: var(--box-shadow);
}

.publication-icon {
  flex-shrink: 0;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(to right, var(--gradient-start), var(--gradient-end));
  display: flex;
  align-items: center;
  justify-content: center;
}

.publication-icon-img {
  width: 30px;
  height: 30px;
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="white"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 6.253v13m0-13C10.832 5.477 9.246 5 7.5 5S4.168 5.477 3 6.253v13C4.168 18.477 5.754 18 7.5 18s3.332.477 4.5 1.253m0-13C13.168 5.477 14.754 5 16.5 5c1.747 0 3.332.477 4.5 1.253v13C19.832 18.477 18.247 18 16.5 18c-1.746 0-3.332.477-4.5 1.253" /></svg>');
}

.publication-content {
  flex: 1;
}

.publication-title {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}

.publication-journal {
  color: var(--accent-color);
  font-weight: 500;
  margin-bottom: 0.3rem;
}

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

.publication-abstract {
  margin-bottom: 1.5rem;
}

.publication-links {
  display: flex;
  gap: 1rem;
}

.publication-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background-color: var(--primary-color);
  color: var(--light-text);
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  font-size: 0.9rem;
  transition: background-color 0.3s ease;
}

.publication-link:hover {
  background-color: var(--secondary-color);
  color: var(--light-text);
}

/* Skills Section */
.skills-categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 3rem;
}

.skill-category h3 {
  text-align: center;
  margin-bottom: 2rem;
  font-size: 1.5rem;
  color: var(--accent-color);
}

.skills-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

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

.skill-icon {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: rgba(79, 70, 229, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(79, 70, 229, 0.3);
}

.skill-info {
  flex: 1;
}

.skill-info h4 {
  margin-bottom: 0.5rem;
}

.skill-bar {
  height: 8px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  overflow: hidden;
}

.skill-level {
  height: 100%;
  background: linear-gradient(to right, var(--gradient-start), var(--gradient-end));
  border-radius: 4px;
  width: 0%;
  transition: width 1.5s ease;
}

/* Contact Section */
.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

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

.contact-item {
  display: flex;
  align-items: center;
  margin-bottom: 16px;
}

.contact-icon {
  margin-right: 12px;
}

.contact-icon img.contact-img-icon {
  width: 20px;
  height: 20px;
  object-fit: contain;
  display: inline-block;
  vertical-align: middle;
}


.contact-detail h3 {
  margin-bottom: 0.3rem;
}

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

.contact-social {
  margin-top: 1rem;
}

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

.social-link {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.3s ease;
}

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

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

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

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--light-text);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.8rem;
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  color: var(--light-text);
  font-family: 'Roboto', sans-serif;
  transition: border-color 0.3s ease;
}

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

.submit-btn {
  width: 100%;
  padding: 1rem;
  background: linear-gradient(to right, var(--gradient-start), var(--gradient-end));
  color: var(--light-text);
  border: none;
  border-radius: var
  .project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.project-card:hover .project-image img {
  transform: scale(1.1);
}

.project-content {
  padding: 1.5rem;
}

.project-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--light-text);
}

.project-description {
  font-size: 1rem;
  color: var(--muted-text);
  margin-bottom: 1rem;
}

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

.project-tag {
  background-color: rgba(139, 92, 246, 0.2);
  color: var(--light-text);
  padding: 0.3rem 0.8rem;
  border-radius: 50px;
  font-size: 0.8rem;
  border: 1px solid rgba(139, 92, 246, 0.3);
}

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

.project-links a {
  color: var(--accent-color);
  font-weight: 500;
  transition: color 0.3s ease;
}

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

/* Footer Section */
footer {
  padding: 3rem 0;
  text-align: center;
  background-color: var(--dark-bg);
  border-top: 1px solid var(--border-color);
}

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

footer .social-links a {
  color: var(--light-text);
  font-size: 1.3rem;
  transition: color 0.3s ease;
}

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

footer p {
  font-size: 0.9rem;
  color: var(--muted-text);
}

/* Responsive Styles */
@media (max-width: 768px) {
  .profile-header {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .navbar .container {
    flex-direction: column;
    gap: 1rem;
  }

  .nav-links {
    flex-direction: column;
    display: none;
  }

  .nav-links.active {
    display: flex;
  }

  .hamburger {
    display: flex;
  }

  .timeline-content {
    width: 100%;
    left: 0 !important;
  }

  .project-image {
    height: 180px;
  }
}

@media (max-width: 480px) {
  .section-header h2 {
    font-size: 2rem;
  }

  .profile-text h1 {
    font-size: 2.5rem;
  }

  .intro-text {
    font-size: 1rem;
  }

  .project-card {
    padding: 1rem;
  }
}