* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
}

:root {
  --bg-color: #fff;
  --text-color: #2b3a67;
  --primary-color: #2b3a67;
  --secondary-color: #1e2b56;
  --card-bg: #ececec;
  --accent-color: #5aa9e6;
}

body.dark {
  --bg-color: #0f172a;
  --text-color: #e2e8f0;
  --primary-color: #1e2b56;
  --secondary-color: #111827;
  --card-bg: #1e293b;
  --accent-color: #38bdf8;
}

body {
  background: var(--bg-color);
  color: var(--text-color);
  transition: background 0.3s, color 0.3s;
}

header {
  background: var(--primary-color);
  color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  position: sticky;
  top: 0;
}

header .logo {
  font-weight: 600;
}


header nav a {
  color: #fff;
  text-decoration: none;
  margin: 0 0.8rem;
}

.icon-btn {
  background: none;
  border: none;
  color: #fff;
  cursor: pointer;
}

.menu-btn {
  display: none;
}


.projetos {
  text-align: center;
  padding: 4rem 1rem;
}

.projetos h2 {
  font-size: 2rem;
  color: var(--primary-color);
  margin-bottom: 2rem;
}

body.dark .projetos h2 {
  color: var(--accent-color);
}

.container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.perfil {
  width: 200px;
  border-radius: 10px;
}

.card {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 50px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  max-width: 400px;
  text-align: left;
}

.titulo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.titulo i {
  width: 24px;
  height: 24px;
  color: var(--accent-color);
}

.card p {
  margin-bottom: 1.5rem;
}

.botoes {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1.5rem;
}

.btn,
.btn-outline {
  text-decoration: none;
  padding: 0.6rem 1.2rem;
  border-radius: 75px;
  font-weight: 600;
  transition: 0.3s;
  text-align: center;
}

.btn {
  background: var(--accent-color);
  color: #fff;
  display: inline-block;
}

.btn:hover {
  opacity: 0.9;
}

.btn-outline {
  border: 2px solid var(--text-color);
  color: var(--text-color);
}

.btn-outline:hover {
  background: var(--accent-color);
  color: #fff;
}

footer {
  background: var(--secondary-color);
  color: #fff;
  text-align: center;
  padding: 1rem;
  margin-top: 3rem;
}

@media (max-width: 768px) {
  header nav {
    display: none;
    flex-direction: column;
    background: var(--secondary-color);
    position: absolute;
    top: 60px;
    right: 10px;
    border-radius: 10px;
  }

  header nav.active {
    display: flex;
  }

  .menu-btn {
    display: inline;
  }

  .container {
    flex-direction: column;
  }

  .perfil {
    width: 160px;
  }

  .card {
    text-align: center;
  }
}