body {
  font-family: 'Inter', sans-serif;
  margin: 0;
  padding: 0;
}

.hero {
  height: 100vh;
  background: linear-gradient(135deg, #1e3c72, #2a5298);
  padding-top: 80px;
}

.navbar {
  padding-top: 15px;
}

.nav-link {
  font-weight: 500;
  margin-left: 15px;
}

footer {
  background-color: #f8f9fa;
}

/* Navbar transparente inicial */
.navbar {
  transition: background-color 0.3s ease;
  padding-top: 15px;
}

/* Quando rolar a página */
.navbar.scrolled {
  background-color: rgba(0, 0, 0, 0.9);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.stack {
  background-color: #f8f9fa;
}

.tech-card {
  background-color: white;
  border-radius: 10px;
  transition: transform 0.2s ease;
}

.tech-card:hover {
  transform: translateY(-5px);
}

.projects-hero {
  height: 40vh;
  background: linear-gradient(135deg, #141e30, #243b55);
  padding-top: 80px;
}

.project-card {
  background-color: white;
  border-radius: 12px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
  transition: transform 0.2s ease;
}

.project-card:hover {
  transform: translateY(-5px);
}

.about-hero {
  height: 40vh;
  background: linear-gradient(135deg, #232526, #414345);
  padding-top: 80px;
}

.about-card {
  background-color: white;
  border-radius: 12px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.contact-hero {
  height: 40vh;
  background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
  padding-top: 80px;
}

.contact-card {
  background-color: white;
  border-radius: 12px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.about-hero img {
  border: 4px solid rgba(255, 255, 255, 0.2);
  transition: transform 0.3s ease;
}

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

@media (max-width: 768px) {
  .about-hero {
    text-align: center;
  }

  .about-hero img {
    max-width: 180px;
  }
}