:root {
  --bg: #f5f7fb;
  --card: #ffffff;
  --primary: #0a66c2;
  --muted: #6b7280;
  --accent: #0ea5a4;
  --radius: 12px;
  --gap: 18px;
}

* {
  box-sizing: border-box;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  background: linear-gradient(180deg, var(--bg) 0%, #e9eef7 100%);
  color: #111827;
  -webkit-font-smoothing: antialiased;
  padding: 0;
}

.tudo {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

nav ul {
  display: flex;
  justify-content: center;
  gap: 25px;
  list-style: none;
  padding: 0;
  margin: 0;
}

nav a {
  text-decoration: none;
  color: var(--primary);
  font-weight: 600;
  transition: color 0.3s ease;
}

nav a:hover {
  color: var(--accent);
}

header {
  text-align: center;
  padding: 40px 20px;
}

header img {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 20px;
}

header h1 {
  font-size: 1.8rem;
  margin-bottom: 15px;
}

header p {
  color: var(--muted);
  max-width: 700px;
  margin: 0 auto 20px;
  line-height: 1.6;
}

#curriculo {
  display: inline-block;
  background: var(--primary);
  color: white;
  padding: 10px 20px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: background 0.3s ease, transform 0.2s ease;
}

#curriculo:hover {
  background: var(--accent);
  transform: translateY(-2px);
}

.formacoes p,
.experiencias p,
.skills h2 {
  text-align: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

.cartoes {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  margin: 30px 0;
}

.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  padding: 20px;
  max-width: 400px;
  flex: 1 1 300px;
}

.card h2 {
  margin-top: 0;
  color: var(--primary);
  font-size: 1.2rem;
}

.experiencias {
  margin-top: 60px;
}

.desenvolvimento,
.manutencao {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px;
  margin: 40px 0;
}

.imagem img {
  width: 250px;
  border-radius: var(--radius);
}

.paro {
  max-width: 500px;
}

.paro h2 {
  color: var(--primary);
  margin-bottom: 8px;
}

.diogadas {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
}

.skills {
  margin: 60px 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
}

.cartao {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  padding: 20px;
  max-width: 400px;
  flex: 1 1 300px;
  text-align: center;
}

.cartao i {
  font-size: 2rem;
  color: var(--accent);
  margin-bottom: 10px;
}

.redes-sociais {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin: 50px 0;
}

.redes-sociais a {
  font-size: 1.8rem;
  color: var(--primary);
  transition: color 0.3s ease, transform 0.2s ease;
}

.redes-sociais a:hover {
  color: var(--accent);
  transform: translateY(-3px);
}

footer {
  text-align: center;
  color: var(--muted);
  padding: 20px 0;
  font-size: 0.9rem;
}

/* Responsividade */
@media (max-width: 900px) {
  header h1 {
    font-size: 1.5rem;
  }
  header img {
    width: 140px;
    height: 140px;
  }
  .cartoes,
  .skills {
    flex-direction: column;
    align-items: center;
  }
  .desenvolvimento,
  .manutencao {
    flex-direction: column;
  }
  .paro {
    text-align: center;
  }

  /* Ajustes para tablet: ampliar largura dos cards e container */
  .cartoes {
    width: 100%;
    max-width: 760px; /* maior que mobile, mas limitado para tablets */
    padding: 0 16px;
    margin: 0 auto;
    gap: 20px;
    justify-content: center;
  }

  .card,
  .cartao {
    width: 100%;
    max-width: 700px;
    flex: none;
    margin: 10px auto;
  }
}

@media (max-width: 600px) {
  nav ul {
    flex-direction: column;
    gap: 12px;
  }
 
  header h1 {
    font-size: 1.3rem;
  }
  /* Aumentar largura dos cartões e do menu de formações no celular */
  .card,
  .cartao {
    width: 100%;
    max-width: 520px; /* torna-os um pouco maiores que o container padrão em mobile */
    box-shadow: 0 6px 18px rgba(0,0,0,0.06);
  }

  /* Se quisermos que o container de cartões ocupe largura maior e centralize */
  .cartoes {
    width: 100%;
    max-width: 540px;
    padding: 0 12px;
    justify-content: center;
  }

  /* Aumentar legibilidade do menu de formações em mobile */
  .formacoes,
  .formacoes p {
    width: 100%;
    max-width: 540px;
    margin: 0 auto 12px;
  }
  
  
  .imagem img {
    width: 200px;
  }
}