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

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #ffffff;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}
/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid #e5e5e5;
  z-index: 1000;
  transition: all 0.3s ease;
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.nav-logo a {
  font-size: 1.5rem;
  font-weight: bold;
  text-decoration: none;
  color: #333;
}

.nav-menu {
  display: flex;
  gap: 2rem;
}

.nav-link {
  text-decoration: none;
  color: #666;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-link:hover {
  color: #007bff;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.bar {
  width: 25px;
  height: 3px;
  background-color: #333;
  margin: 3px 0;
  transition: 0.3s;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 20px 20px;
}

.hero-container {
  max-width: 1000px;
  text-align: center;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: bold;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.gradient-text {
  background: linear-gradient(135deg, #007bff, #0056b3);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
    font-size: 40px;
    font-weight: bold;
    transition: opacity 0.5s ease-in-out;
    text-align: center;
    margin-top: 50px;
}

.fade-out {
    opacity: 0;
}

.fade-in {
    opacity: 1;
}

.hero-description {
  font-size: 1.1rem;
  color: #666;
  max-width: 600px;
  margin: 0 auto 2rem;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.btn {
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-primary {
  background: #007bff;
  color: white;
}

.btn-primary:hover {
  background: #0056b3;
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: #007bff;
  border: 2px solid #007bff;
}

.btn-outline:hover {
  background: #007bff;
  color: white;
}

.btn-small {
  padding: 8px 16px;
  font-size: 0.9rem;
}

.btn-full {
  width: 100%;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
}

.social-link {
  color: #666;
  font-size: 1.5rem;
  transition: color 0.3s ease;
}

.social-link:hover {
  color: #007bff;
}

/* Section Styles */
section {
  padding: 80px 0;
}

.section-title {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 3rem;
  font-weight: bold;
}

/* About Section */
.about {
  background: #f8f9fa;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about-text p {
  font-size: 1.1rem;
  color: #666;
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

.about-skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
}

.skill-category h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: #333;
}

.skill-category p {
  color: #666;
  font-size: 1rem;
}

.about-image {
  display: flex;
  justify-content: center;
}

.image-placeholder {
  width: 300px;
  height: 300px;
  background: linear-gradient(135deg, #007bff20, #007bff10);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 6rem;
  color: #007bff;
}

/* Skills Section */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.skill-category-card {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  text-align: center;
}

.skill-category-card h3 {
  font-size: 1.3rem;
  margin-bottom: 1.5rem;
  color: #333;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
}

.skill-tag {
  background: #e9ecef;
  color: #495057;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 500;
}

/* Projects Section */
.projects {
  background: #f8f9fa;
}

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

.project-card {
  background: white;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.project-image {
  position: relative;
  height: 230px;
  overflow: hidden;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-status {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
}

.project-status.live {
  background: #28a745;
  color: white;
}

.project-status.progress {
  background: #ffc107;
  color: #333;
}

.project-content {
  padding: 1.5rem;
}

.project-content h3 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
  color: #333;
}

.project-content p {
  color: #666;
  margin-bottom: 1rem;
  line-height: 1.6;
}

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

.tech-tag {
  background: #e9ecef;
  color: #495057;
  padding: 4px 8px;
  border-radius: 12px;
  font-size: 0.8rem;
}

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

/* Experience Section */
.experience-timeline {
  max-width: 800px;
  margin: 0 auto;
}

.experience-item {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  margin-bottom: 2rem;
}

.experience-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.experience-info h3 {
  font-size: 1.3rem;
  color: #333;
  margin-bottom: 0.5rem;
}

.experience-info h4 {
  font-size: 1.1rem;
  color: #007bff;
  font-weight: 600;
}

.experience-period {
  color: #666;
  font-weight: 500;
  background: #f8f9fa;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.9rem;
}

.experience-content p {
  color: #666;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.achievements h5 {
  color: #333;
  margin-bottom: 0.5rem;
}

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

.achievements li {
  color: #666;
  margin-bottom: 0.5rem;
  padding-left: 1.5rem;
  position: relative;
}

.achievements li::before {
  content: "•";
  color: #007bff;
  font-weight: bold;
  position: absolute;
  left: 0;
}


/* Cerificate Section */
.certificate-timeline {
  max-width: 800px;
  margin: 0 auto;
}

.certificate-item {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  margin-bottom: 2rem;
}

.certificate-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.certificate-info h3 {
  font-size: 1.3rem;
  color: #333;
  margin-bottom: 0.5rem;
}

.certificate-info h4 {
  font-size: 1.1rem;
  color: #007bff;
  font-weight: 600;
}

.certificate-period {
  color: #666;
  font-weight: 500;
  background: #f8f9fa;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.9rem;
}

.certificate-content p {
  color: #666;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}


/* Contact Section */
.contact {
  background: #f8f9fa;
}

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

.contact-info h3 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
  color: #333;
}

.contact-info p {
  color: #666;
  font-size: 1.1rem;
  line-height: 1.6;
  margin-bottom: 2rem;
}

.contact-details {
  margin-bottom: 2rem;
}

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

.contact-item i {
  color: #007bff;
  width: 20px;
}

.contact-social {
  display: flex;
  gap: 1rem;
}

.social-btn {
  width: 50px;
  height: 50px;
  background: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #666;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.social-btn:hover {
  background: #007bff;
  color: white;
  transform: translateY(-2px);
}

.contact-form-card {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.contact-form-card h4 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
  color: #333;
}

.contact-form-card p {
  color: #666;
  margin-bottom: 1.5rem;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.contact-form input,
.contact-form textarea {
  padding: 12px;
  border: 2px solid #e9ecef;
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: #007bff;
}

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

/* Responsive Design */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background-color: white;
    width: 100%;
    text-align: center;
    transition: 0.3s;
    box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
    padding: 2rem 0;
  }

  .nav-menu.active {
    left: 0;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.active .bar:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .nav-toggle.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .about-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .about-skills-grid {
    grid-template-columns: 1fr;
  }

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

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

  .experience-header {
    flex-direction: column;
    gap: 0.5rem;
  }
  .certificate-header {
    flex-direction: column;
    gap: 0.5rem;
  }

  .contact-content {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .image-placeholder {
    width: 200px;
    height: 200px;
    font-size: 4rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .container {
    padding: 0 15px;
  }

  section {
    padding: 60px 0;
  }
}

/* Smooth scrolling */
html {
  scroll-behavior: smooth;
}

/* Loading animation */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeInUp 0.6s ease-out;
}