body {
  margin: 0;
  padding: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: #333;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

.portfolio {
  scroll-snap-type: y mandatory;
  overflow-y: scroll;
  height: 100vh;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-y: contain;
}

.portfolio__section {
  scroll-snap-align: start;
  position: relative;
  height: 100vh;
  width: 100%;
  overflow: hidden;
}
.portfolio__section .content {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.portfolio__section .bg-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  z-index: 1;
}
.portfolio__section .bg-image::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
}
.portfolio__section--intro {
  text-align: center;
}
.portfolio__section--intro .intro-title {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  color: #fff;
}
.portfolio__section--intro .intro-title .highlight {
  color: #3498db;
}
.portfolio__section--intro .intro-subtitle {
  font-size: 1.5rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 2rem;
}
.portfolio__section--intro .social-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
}
.portfolio__section--intro .social-links .social-link {
  color: #fff;
  text-decoration: none;
  font-size: 1.1rem;
  transition: color 0.3s;
}
.portfolio__section--intro .social-links .social-link:hover {
  color: #3498db;
}
.portfolio__section .section-title {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  color: #fff;
  position: relative;
  display: inline-block;
}
.portfolio__section .section-title::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 50px;
  height: 3px;
  background: #3498db;
}
.portfolio__section .about-content {
  display: flex;
  gap: 2rem;
  align-items: center;
}
.portfolio__section .about-content .about-text {
  flex: 1;
  color: #fff;
  line-height: 1.6;
}
.portfolio__section .about-content .about-image {
  flex: 1;
}
.portfolio__section .about-content .about-image img {
  max-width: 100%;
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}
.portfolio__section .timeline {
  position: relative;
  padding-left: 2rem;
  color: #fff;
}
.portfolio__section .timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 2px;
  background: #3498db;
}
.portfolio__section .timeline-item {
  margin-bottom: 2rem;
  position: relative;
}
.portfolio__section .timeline-item::before {
  content: "";
  position: absolute;
  left: -2.5rem;
  top: 0.5rem;
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  background: #fff;
  border: 2px solid #3498db;
}
.portfolio__section .timeline-title {
  font-size: 1.3rem;
  margin-bottom: 0.3rem;
}
.portfolio__section .timeline-company {
  font-style: italic;
  margin-bottom: 0.5rem;
  opacity: 0.8;
}
.portfolio__section .timeline-description {
  line-height: 1.5;
}
.portfolio__section .projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}
.portfolio__section .project-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 10px;
  padding: 1.5rem;
  transition: transform 0.3s;
  color: #fff;
}
.portfolio__section .project-card:hover {
  transform: translateY(-5px);
}
.portfolio__section .project-title {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
  color: #fff;
}
.portfolio__section .project-description {
  margin-bottom: 1rem;
  line-height: 1.5;
}
.portfolio__section .project-link {
  color: #3498db;
  text-decoration: none;
  font-weight: bold;
}
.portfolio__section .project-link:hover {
  text-decoration: underline;
}
.portfolio__section--footer {
  background: #2c3e50;
}
.portfolio__section--footer .content {
  text-align: center;
}
.portfolio__section--footer .contact-info {
  margin-bottom: 2rem;
  color: #fff;
}
.portfolio__section--footer .contact-info a {
  color: #3498db;
  text-decoration: none;
}
.portfolio__section--footer .contact-info a:hover {
  text-decoration: underline;
}
.portfolio__section--footer .footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 2rem;
}
.portfolio__section--footer .footer-links .footer-link {
  color: #fff;
  text-decoration: none;
  transition: color 0.3s;
}
.portfolio__section--footer .footer-links .footer-link:hover {
  color: #3498db;
}
.portfolio__section--footer .copyright {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .portfolio__section .content {
    padding: 1rem;
  }
  .portfolio__section--intro .intro-title {
    font-size: 2.5rem;
  }
  .portfolio__section--intro .intro-subtitle {
    font-size: 1.2rem;
  }
  .portfolio__section .about-content {
    flex-direction: column;
  }
  .portfolio__section .about-content .about-text {
    order: 2;
  }
  .portfolio__section .about-content .about-image {
    order: 1;
    margin-bottom: 1.5rem;
  }
  .portfolio__section .section-title {
    font-size: 2rem;
  }
}