:root {
  --primary-color: #2563eb;
  --secondary-color: #1e40af;
  --text-color: #1f2937;
  --light-text: #6b7280;
  --bg-color: #f9fafb;
  --white: #ffffff;
  --gray-light: #e5e7eb;
  --gray-dark: #4b5563;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

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

body {
  font-family: "Poppins", sans-serif;
  color: var(--text-color);
  background-color: var(--bg-color);
  line-height: 1.6;
}

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

/* Navigation Styles */
.navbar {
  background-color: var(--white);
  box-shadow: var(--shadow-sm);
  position: fixed;
  width: 100%;
  z-index: 1000;
  padding: 1rem 0;
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
}

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

.nav-links a {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

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

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-color);
  cursor: pointer;
}

/* Hero Section Styles */
.hero {
  padding: 8rem 0 4rem;
  background: linear-gradient(135deg, #f0f4f8, #e0e7ff);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.1);
  z-index: 1;
  animation: fadeIn 2s ease-in-out;
}

.hero .container {
  display: flex;
  align-items: center;
  gap: 3rem;
  position: relative;
  z-index: 2;
}

.hero-content {
  flex: 1;
  animation: slideInLeft 1s ease-out;
}

.hero-content h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: #333;
}

.hero-content h1 span {
  color: var(--primary-color);
}

.hero-content h2 {
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--gray-dark);
  margin-bottom: 1.5rem;
}

.hero-content p {
  margin-bottom: 2rem;
  color: var(--light-text);
}

.cta-buttons {
  display: flex;
  gap: 1rem;
}

.btn {
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.btn.primary {
  background-color: var(--primary-color);
  color: var(--white);
}

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

.btn.secondary {
  border: 1px solid var(--primary-color);
  color: var(--primary-color);
}

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

.hero-image {
  flex: 1;
  display: flex;
  justify-content: center;
  animation: fadeInRight 1s ease-out;
}

.hero-image img {
  width: 100%;
  max-width: 400px;
  border-radius: 1rem;
  box-shadow: var(--shadow-lg);
  transition: transform 0.3s ease;
}

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

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideInLeft {
  from {
    transform: translateX(-50%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes fadeInRight {
  from {
    transform: translateX(50%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}


/* Section Common Styles */
.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: -0.5rem;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background-color: var(--primary-color);
  border-radius: 2px;
}

/* About Section Styles */
.about {
  padding: 5rem 0;
  background-color: var(--white);
}

.about-content {
  display: flex;
  align-items: center;
  gap: 3rem;
}

.about-image {
  flex: 1;
}

.about-image img {
  width: 85%;
  border-radius: 1rem;
  box-shadow: var(--shadow-lg);
}

.about-text {
  flex: 1;
}

.about-text h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.about-text p {
  margin-bottom: 2rem;
  color: var(--light-text);
}

.about-stats {
  display: flex;
  gap: 2rem;
  margin-top: 2rem;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-color);
  display: block;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--light-text);
}

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

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 2rem;
  justify-items: center;
}

.skill-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  background-color: var(--white);
  padding: 1.5rem 1rem;
  border-radius: 0.5rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  width: 100%;
  text-align: center;
}

.skill-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.skill-icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgb(0, 0, 0);
  border-radius: 50%;
  margin-bottom: 1rem;
  font-size: 3rem;
}

.skill-card h3 {
  font-size: 1rem;
  font-weight: 800;
  color: rgb(24, 92, 250);
}

.skill-tags {
  display: flex;
  /* make this skill-tags in center */
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  margin-top: 1.5rem;
}

.skill-tags span {
  background-color: var(--gray-light);
  color: var(--text-color);
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.75rem;
}

/* Projects Section Styles */
.projects {
  padding: 5rem 0;
}

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

.project-card {
  background-color: var(--white);
  border-radius: 0.5rem;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

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

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

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

.project-content {
  padding: 1.5rem;
}

.project-content h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.project-content p {
  color: var(--light-text);
  margin-bottom: 1rem;
  font-size: 0.875rem;
}

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

.project-tags span {
  background-color: var(--gray-light);
  color: var(--text-color);
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.75rem;
}

.project-link {
  display: inline-flex;
  align-items: center;
  color: var(--primary-color);
  font-weight: 500;
  text-decoration: none;
  transition: var(--transition);
}

.project-link i {
  margin-left: 0.5rem;
  transition: var(--transition);
}

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

.project-link:hover i {
  transform: translateX(3px);
}

/* Experience Section Styles */
.experience {
  padding: 5rem 0;
  background-color: var(--bg-color);
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding-left: 2rem;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 2px;
  background-color: var(--primary-color);
}

.timeline-item {
  position: relative;
  margin-bottom: 2rem;
  padding-left: 2rem;
}

.timeline-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: -0.5rem;
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  background-color: var(--primary-color);
  border: 3px solid var(--white);
}

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

.timeline-content {
  background-color: var(--white);
  padding: 1.5rem;
  border-radius: 0.5rem;
  box-shadow: var(--shadow-sm);
}

.timeline-content h3 {
  font-size: 1.25rem;
  margin-bottom: 0.25rem;
}

.timeline-content h4 {
  font-size: 1rem;
  font-weight: 500;
  color: var(--light-text);
  margin-bottom: 0.5rem;
}

/* Testimonials Section Styles */
.testimonials {
  padding: 5rem 0;
  background-color: var(--white);
}

.testimonial-slider {
  max-width: 800px;
  margin: 0 auto;
}

.testimonial-item {
  background-color: var(--bg-color);
  padding: 2rem;
  border-radius: 0.5rem;
  margin-bottom: 1.5rem;
}

.testimonial-content {
  position: relative;
  padding-bottom: 1.5rem;
  margin-bottom: 1.5rem;
}

.testimonial-content::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 50px;
  height: 2px;
  background-color: var(--primary-color);
}

.testimonial-content p {
  font-style: italic;
  color: var(--text-color);
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.testimonial-author img {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  object-fit: cover;
}

.testimonial-author h4 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.testimonial-author span {
  font-size: 0.875rem;
  color: var(--light-text);
}

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

.contact-container {
  display: flex;
  gap: 3rem;
}

.contact-info {
  flex: 1;
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.info-item i {
  font-size: 1.25rem;
  color: var(--primary-color);
  margin-top: 0.25rem;
}

.info-item h4 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.contact-form {
  flex: 1;
  background-color: var(--white);
  padding: 2rem;
  border-radius: 0.5rem;
  box-shadow: var(--shadow-sm);
}

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

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--gray-light);
  border-radius: 0.5rem;
  font-family: inherit;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}
.form-group button {
  background-color: var(--primary-color);
  color: var(--white);
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 0.5rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

/* stay connected section */
.stay-connected {
  padding: 5rem 0;
  background-color: var(--white);
}
img.footer-image-size {
  height: 5rem;
  width: 5rem;
  padding: 1rem;
}
footer {
  background-color: var(--white);
}
.footer-image-position {
  padding-top: 20px;
  display: flex;
  justify-content: center;
  align-items: center;
}
.copyright {
  text-align: center;
  color: var(--text-color);
  padding: 1rem 0;
}

/* Responsive Styles */
@media (max-width: 768px) {
  .hero .container,
  .about-content {
    flex-direction: column;
  }

  .hero {
    padding-top: 6rem;
  }

  .hero-content h1 {
    font-size: 2.5rem;
  }

  .nav-links {
    display: none;
  }

  .menu-toggle {
    display: block;
  }
}