/* Reset */
/* Copyright Notice */
.copyright-notice {
  background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
  color: white;
  padding: 30px 0;
  text-align: center;
  border-top: 3px solid #0078ff;
  position: relative;
  overflow: hidden;
}

/* Remove underline & default link styling for project cards */
.experience-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

/* Prevent underline on hover, focus, active */
.experience-link:hover,
.experience-link:focus,
.experience-link:active {
  text-decoration: none;
  color: inherit;
}


.copyright-notice::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 120, 255, 0.1), transparent);
  animation: shimmer 3s infinite;
}

@keyframes shimmer {
  0% {
    left: -100%;
  }
  100% {
    left: 100%;
  }
}

.copyright-notice .container {
  position: relative;
  z-index: 2;
}

.copyright-notice p {
  font-size: 16px;
  font-weight: 500;
  margin: 0;
  opacity: 0.9;
  transition: all 0.3s ease;
}

.copyright-notice:hover p {
  opacity: 1;
  transform: translateY(-2px);
}

.copyright-notice p::before {
  content: '©';
  margin-right: 5px;
  color: #0078ff;
  font-weight: bold;
}



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

/* Ensure proper desktop layout */
html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: 20px;
}

/* Force desktop layout for screens wider than 768px */
@media (min-width: 769px) {
  .mobile-menu-toggle {
    display: none !important;
  }
  
  .sidebar {
    transform: translateX(0) !important;
    position: fixed !important;
  }
  
  .content {
    margin-left: 350px !important;
  }
}

body {
  display: flex;
  font-family: 'Poppins', sans-serif;
  color: #333;
  min-height: 100vh;
  overflow-x: hidden;
  margin: 0;
  padding: 0;
  width: 100%;
}

/* Container */
.container {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 0 20px;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  position: fixed;
  top: 20px;
  left: 20px;
  z-index: 10001;
  cursor: pointer;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 24px;
  background: rgba(0, 120, 255, 0.1);
  padding: 8px;
  border-radius: 5px;
  backdrop-filter: blur(10px);
}

.mobile-menu-toggle span {
  display: block;
  height: 3px;
  width: 100%;
  background: #0078ff;
  border-radius: 2px;
  transition: all 0.3s ease;
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* Sidebar */
.sidebar {
  width: 350px;
  left: 0;
  top: 0;
  background: #f6f7fb;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-right: 1px solid #ddd;
  position: fixed;
  height: 100vh;
  overflow-y: auto;
  z-index: 1000;
  transform: translateZ(0);
  will-change: auto;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

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

.sidebar .profile img {
  margin-top: 2rem;
  width: 210px;
  height: 220px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 15px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 4px solid #fff;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.sidebar .profile img:hover {
  transform: scale(1.05);
  box-shadow: 0 12px 35px rgba(0, 120, 255, 0.3);
}

.sidebar h2 {
  font-size: 25px;
  font-family: serif;
  margin-bottom: 5px;
  color: #333;
  transition: color 0.3s ease;
}

.sidebar h2:hover {
  color: #0078ff;
}

.sidebar p {
  font-size: 16px;
  color: #777;
  transition: color 0.3s ease;
}

.sidebar p:hover {
  color: #0078ff;
}

.sidebar nav ul {
  font-weight: 600;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  font-size: 18px;
  margin-left: 1rem;
  list-style: none;
  text-align: center;
}

.sidebar nav ul li {
  margin: 15px 0;
  transition: transform 0.3s ease;
}

.sidebar nav ul li:hover {
  transform: translateX(10px);
}

.sidebar nav ul li a {
  text-decoration: none;
  color: #333;
  font-size: 16px;
  transition: all 0.3s ease;
  position: relative;
  padding: 8px 15px;
  border-radius: 8px;
  display: block;
  transform: scale(1);
}

.sidebar nav ul li a:hover {
  color: #0078ff;
  background: rgba(0, 120, 255, 0.1);
  transform: translateX(5px);
}

.sidebar nav ul li a.active {
  color: #0078ff;
  background: rgba(0, 120, 255, 0.15);
}

.sidebar nav ul li a::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 2px;
  background: #0078ff;
  transition: width 0.3s ease;
}

.sidebar nav ul li a:hover::before,
.sidebar nav ul li a.active::before {
  width: 20px;
}

/* Social icons */
.sidebar .social-icons {
  padding: 1px;
  text-align: center;
  margin-top: 10px;
  margin-bottom: 3rem;
}

.sidebar .social-icons a {
  color: #555;
  font-size: 20px;
  margin: 0 3px;
  transition: all 0.3s ease;
  display: inline-block;
  padding: 10px;
  border-radius: 50%;
}

.sidebar .social-icons a:hover {
  color: #0078ff;
  background: rgba(0, 120, 255, 0.1);
  transform: translateY(-3px);
}

/* Content */
.content {
  flex: 1;
  margin-left: 350px;
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
  scroll-behavior: smooth;
}

/* Section Styling */
section {
  min-height: 100vh;
  padding: 80px 0;
  position: relative;
}

section h2 {
  font-size: 48px;
  font-family: serif;
  text-align: center;
  margin-bottom: 60px;
  color: #333;
  position: relative;
}

section h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: linear-gradient(45deg, #0078ff, #00d4ff);
  border-radius: 2px;
}

/* Home Section */
.home-section {
  padding: 0;
  min-height: 100vh;
  position: relative;
  overflow: hidden;
}

/* Slider */
.slider {
  height: 100vh;
  width: 100%;
  position: relative;
  overflow: hidden;
}

.slide {
  position: absolute;
  top: 0;
  padding: 1px;
  left: 100%;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  background-color: #f8f9fa;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  transition: left 2s ease-in-out;
}


/* Alternative: If you want to show full image without cropping */
.slide.full-image {
  background-size: contain;
  background-color: #f8f9fa;
}

.slide.active {
  left: 0;
}

.slide .text {
  color: #fff;
  text-align: center;
  background: rgba(0, 0, 0, 0.8);
  padding: 25px 35px;
  border-radius: 15px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transform: translateY(30px);
  opacity: 0;
  transition: all 1s ease 0.5s;
  margin-bottom: 40px;
  max-width: 500px;
  position: relative;
  z-index: 10;
}

.slide.active .text {
  transform: translateY(0);
  opacity: 1;
}

.slide h1 {
  font-size: 42px;
  font-family: serif;
  margin-bottom: 15px;
  background: linear-gradient(45deg, #fff, #00d4ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.slide p {
  font-size: 18px;
  font-weight: 300;
  line-height: 1.5;
}

/* Dots */
.dots {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 15px;
}

.dots span {
  display: inline-block;
  height: 12px;
  width: 12px;
  background: rgba(255, 255, 255, 0.5);
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s ease;
}

.dots span.active {
  background: #0078ff;
  transform: scale(1.2);
}

.dots span:hover {
  background: #00d4ff;
  transform: scale(1.1);
}

/* About Section */
.about-section {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-text h2 {
  color: white;
  text-align: left;
  margin-bottom: 30px;
}

.about-text h2::after {
  left: 0;
  transform: none;
  background: linear-gradient(45deg, #fff, #00d4ff);
}

.about-text p {
  font-size: 20px;
  line-height: 1.8;
  margin-bottom: 20px;
  opacity: 0.9;
  transition: all 0.3s ease;
}

.about-text p:hover {
  opacity: 1;
  transform: translateX(10px);
}

.about-image img {
  width: 100%;
  height: 700px;
  object-fit: cover;
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  transition: all 0.3s ease;
}

.about-image img:hover {
  transform: scale(1.05) rotate(2deg);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
}

/* Skills Section */
.skills-section {
  background: white;
  padding: 100px 0;
}

.expertise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  max-width: 1000px;
  margin: 0 auto;
}

.expertise-card {
  background: white;
  border-radius: 15px;
  padding: 40px 30px;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  border: 1px solid #f0f0f0;
  position: relative;
  overflow: hidden;
}

.expertise-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(45deg, #0078ff, #00d4ff);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.expertise-card:hover::before {
  transform: scaleX(1);
}

.expertise-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

/* Hexagon Icons */
.hexagon-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 25px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.hexagon-icon::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background: inherit;
  transform: rotate(60deg);
  border-radius: 8px;
}

.hexagon-icon::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background: inherit;
  transform: rotate(-60deg);
  border-radius: 8px;
}

.hexagon-icon i {
  font-size: 32px;
  color: white;
  z-index: 2;
  position: relative;
  transition: all 0.3s ease;
}

.expertise-card:hover .hexagon-icon {
  transform: scale(1.1) rotate(10deg);
}

.expertise-card:hover .hexagon-icon i {
  transform: scale(1.2);
}

/* Color Variants */
.hexagon-icon.blue {
  background: #0078ff;
}

.hexagon-icon.red {
  background: #ff4757;
}

.hexagon-icon.orange {
  background: #ffa502;
}

.hexagon-icon.purple {
  background: #8e44ad;
}

.hexagon-icon.teal {
  background: #00d2d3;
}

.hexagon-icon.dark-blue {
  background: #2c3e50;
}

.expertise-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: #333;
  margin-bottom: 25px;
  letter-spacing: 1px;
  text-transform: uppercase;
  transition: color 0.3s ease;
}

.expertise-card:hover h3 {
  color: #0078ff;
}

.skill-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.skill-list li {
  padding: 8px 0;
  color: #666;
  font-size: 16px;
  font-weight: 500;
  transition: all 0.3s ease;
  position: relative;
}

.skill-list li::before {
  content: '▶';
  color: #0078ff;
  margin-right: 10px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.expertise-card:hover .skill-list li::before {
  opacity: 1;
}

.expertise-card:hover .skill-list li {
  color: #333;
  transform: translateX(10px);
}

/* Bottom border for each card */
.expertise-card.blue::after,
.expertise-card.red::after,
.expertise-card.orange::after,
.expertise-card.purple::after,
.expertise-card.teal::after,
.expertise-card.dark-blue::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  border-radius: 2px;
  transition: width 0.3s ease;
}

.expertise-card:hover::after {
  width: 80px;
}

.expertise-card.blue::after {
  background: #0078ff;
}

.expertise-card.red::after {
  background: #ff4757;
}

.expertise-card.orange::after {
  background: #ffa502;
}

.expertise-card.purple::after {
  background: #8e44ad;
}

.expertise-card.teal::after {
  background: #00d2d3;
}

.expertise-card.dark-blue::after {
  background: #2c3e50;
}

/* Education Section */
.education-section {
  background: white;
}

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

.education-timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, #0078ff, #00d4ff);
  transform: translateX(-50%);
}

.timeline-item {
  display: flex;
  align-items: center;
  margin-bottom: 60px;
  position: relative;
}

.timeline-item:nth-child(even) {
  flex-direction: row-reverse;
}

.timeline-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(45deg, #0078ff, #324043);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 24px;
  z-index: 2;
  position: relative;
  transition: all 0.3s ease;
  box-shadow: 0 8px 25px rgba(0, 120, 255, 0.3);
}

.timeline-icon:hover {
  transform: scale(1.1);
  box-shadow: 0 12px 35px rgba(0, 120, 255, 0.4);
}

.timeline-content {
  flex: 1;
  background: white;
  padding: 20px;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  margin: 0 40px;
  transition: all 0.3s ease;
  border: 1px solid #f0f0f0;
}

.timeline-content:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.timeline-content h3 {
  font-size: 22px;
  margin-bottom: 10px;
  color: #333;
  transition: color 0.3s ease;
}

.timeline-content:hover h3 {
  color: #0078ff;
}

.timeline-content h4 {
  font-size: 18px;
  color: #0078ff;
  margin-bottom: 10px;
}

.timeline-date {
  color: #777;
  font-weight: 600;
  margin-bottom: 15px;
}

/* Experience Section */
.experience-section {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

.experience-section h2 {
  color: white;
}

.experience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
}

.experience-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all 0.3s ease;
}

.experience-card:hover {
  transform: translateY(-10px);
  background: rgba(255, 255, 255, 0.15);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

/* Project Image */
.project-image {
  position: relative;
  height: 200px;
  overflow: hidden;
}

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

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

.project-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
  color: white;
  padding: 20px;
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.experience-card:hover .project-overlay {
  transform: translateY(0);
}

.project-overlay h4 {
  font-size: 18px;
  margin-bottom: 5px;
  color: #00d4ff;
}

.project-overlay p {
  font-size: 14px;
  opacity: 0.9;
}

.experience-header {
  padding: 20px;
  margin-bottom: 0;
}

.experience-header h3 {
  font-size: 22px;
  margin-bottom: 10px;
  transition: color 0.3s ease;
}

.experience-card:hover .experience-header h3 {
  color: #00d4ff;
}

.company {
  display: block;
  color: #00d4ff;
  font-weight: 600;
  margin-bottom: 5px;
}

.duration {
  color: rgba(255, 255, 255, 0.8);
  font-size: 14px;
}

.experience-content {
  padding: 0 20px 20px 20px;
}

.experience-content p {
  margin-bottom: 15px;
  line-height: 1.6;
}

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

.experience-content li {
  padding: 5px 0;
  position: relative;
  padding-left: 20px;
}

.experience-content li::before {
  content: '▶';
  position: absolute;
  left: 0;
  color: #00d4ff;
}

/* Certificates Section */
.certificates-section {
  background: white;
}

.certificates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.certificate-card {
  background: white;
  border-radius: 15px;
  padding: 0;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  border: 1px solid #f0f0f0;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.certificate-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 120, 255, 0.1), transparent);
  transition: left 0.5s ease;
}

.certificate-card:hover::before {
  left: 100%;
}

.certificate-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.certificate-image {
  width: 100%;
  height: 200px;
  overflow: hidden;
  position: relative;
}

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

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

.certificate-content {
  padding: 20px;
}

.certificate-content h3 {
  font-size: 18px;
  margin-bottom: 10px;
  color: #333;
  transition: color 0.3s ease;
}

.certificate-card:hover .certificate-content h3 {
  color: #0078ff;
}

.certificate-content p {
  color: #666;
  margin-bottom: 10px;
}

.certificate-date {
  color: #0078ff;
  font-weight: 600;
  font-size: 14px;
}

/* Memories Section */
.memories-section {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

.memories-section h2 {
  color: white;
}

.memories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.memory-item {
  position: relative;
  height: 250px;
  border-radius: 20px;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.3s ease;
}

.memory-item:hover {
  transform: scale(1.05);
}

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

.memory-item:hover img {
  transform: scale(1.1);
}

.memory-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
  color: white;
  padding: 30px 20px 20px;
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.memory-item:hover .memory-overlay {
  transform: translateY(0);
}

.memory-overlay h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

.memory-overlay p {
  font-size: 14px;
  opacity: 0.9;
}

/* Contact Section */
.contact-section {
  background: white;
  padding: 100px 0;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.contact-info {
  display: grid;
  gap: 30px;
}

.contact-item {
  display: flex;
  align-items: center;
  padding: 25px;
  background: white;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  border: 1px solid #f0f0f0;
  transition: all 0.3s ease;
}

.contact-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.contact-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(45deg, #0078ff, #00d4ff);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 20px;
  transition: all 0.3s ease;
}

.contact-item:hover .contact-icon {
  transform: scale(1.1);
}

.contact-icon i {
  font-size: 24px;
  color: white;
}

.contact-details h3 {
  font-size: 20px;
  margin-bottom: 8px;
  color: #333;
  transition: color 0.3s ease;
}

.contact-item:hover .contact-details h3 {
  color: #0078ff;
}

.contact-details p {
  color: #666;
  margin-bottom: 10px;
  font-size: 16px;
}

.contact-details a {
  color: #0078ff;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
}

.contact-details a:hover {
  color: #00d4ff;
  transform: translateX(5px);
}

/* Contact Form */
.contact-form {
  background: white;
  padding: 40px;
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  border: 1px solid #f0f0f0;
}

.contact-form h3 {
  font-size: 28px;
  margin-bottom: 30px;
  color: #333;
  text-align: center;
  position: relative;
}

.contact-form h3::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(45deg, #0078ff, #00d4ff);
  border-radius: 2px;
}

.form-group {
  margin-bottom: 25px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 15px 20px;
  border: 2px solid #f0f0f0;
  border-radius: 10px;
  font-size: 16px;
  transition: all 0.3s ease;
  background: #fafafa;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #0078ff;
  background: white;
  box-shadow: 0 0 0 3px rgba(0, 120, 255, 0.1);
}

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

.submit-btn {
  width: 100%;
  padding: 15px 30px;
  background: linear-gradient(45deg, #0078ff, #00d4ff);
  color: white;
  border: none;
  border-radius: 10px;
  font-size: 18px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(0, 120, 255, 0.3);
}

.submit-btn i {
  transition: transform 0.3s ease;
}

.submit-btn:hover i {
  transform: translateX(5px);
}

/* Responsive Design */
@media (max-width: 1200px) {
  .sidebar {
    width: 300px;
  }
  
  .content {
    margin-left: 300px;
  }
  
  .container {
    max-width: 100%;
    padding: 0 15px;
  }
}

@media (min-width: 1025px) {
  .sidebar {
    width: 350px !important;
  }
  
  .content {
    margin-left: 350px !important;
  }
  
  .container {
    max-width: 1200px;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .sidebar {
    width: 300px !important;
  }
  
  .content {
    margin-left: 300px !important;
  }
  
  .container {
    max-width: 100%;
    padding: 0 20px;
  }
}

@media (max-width: 1024px) {
  .sidebar {
    width: 280px;
  }
  
  .content {
    margin-left: 280px;
  }
}

@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: flex;
  }
  
  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
    width: 280px;
  }
  
  .sidebar.active {
    transform: translateX(0);
  }
  
  .content {
    margin-left: 0;
  }
  
  .about-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .expertise-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
  }
  
  .container {
    padding: 0 15px;
  }
  
  .education-timeline::before {
    left: 30px;
  }
  
  .timeline-item {
    flex-direction: row !important;
    padding-left: 80px;
  }
  
  .timeline-icon {
    position: absolute;
    left: 0;
  }
  
  .timeline-content {
    margin: 0;
  }
  
  section h2 {
    font-size: 36px;
  }
  
  .slide h1 {
    font-size: 32px;
  }
  
  .slide p {
    font-size: 16px;
  }
  
  .slide .text {
    padding: 20px 25px;
    margin-bottom: 30px;
    max-width: 90%;
  }
  
  .expertise-grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }
  
  .expertise-card {
    padding: 30px 20px;
  }
  
  .hexagon-icon {
    width: 60px;
    height: 60px;
  }
  
  .hexagon-icon i {
    font-size: 24px;
  }
  
  .contact-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .contact-form {
    padding: 30px 20px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }
  
  section {
    padding: 40px 0;
  }
  
  section h2 {
    font-size: 28px;
  }
  
  .sidebar .profile img {
    width: 200px;
    height: 220px;
  }
  
  .sidebar nav ul {
    font-size: 20px;
  }
  
  .sidebar nav ul li a {
    font-size: 16px;
  }
}

/* Animation Classes */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.slide-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: all 0.8s ease;
}

.slide-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.slide-in-right {
  opacity: 0;
  transform: translateX(50px);
  transition: all 0.8s ease;
}

.slide-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.scale-in {
  opacity: 0;
  transform: scale(0.8);
  transition: all 0.8s ease;
}

.scale-in.visible {
  opacity: 1;
  transform: scale(1);
}

* {
  scroll-behavior: smooth;
}

/* Ensure proper scrolling for all sections */
section[id] {
  scroll-margin-top: 20px;
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(45deg, #0078ff, #00d4ff);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(45deg, #0056cc, #00b8e6);
}