body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: #f4f6f8;
  color: #333;
}

/* HEADER */
header {
  background: linear-gradient(135deg, #4CAF50, #2e7d32);
  color: white;
  padding: 30px 20px;
  text-align: center;
}

nav {
  margin-top: 10px;
}

nav a {
  margin: 0 10px;
  color: white;
  text-decoration: none;
  font-weight: bold;
}

/* SECCIONES */
section {
  padding: 30px 20px;
  max-width: 800px;
  margin: auto;
}

/* TARJETAS */
.proyecto {
  background: white;
  padding: 20px;
  margin-top: 15px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.08);
  transition: transform 0.2s;
}

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

/* BOTONES */
a {
  display: inline-block;
  margin-top: 10px;
  text-decoration: none;
  color: white;
  background: #4CAF50;
  padding: 8px 12px;
  border-radius: 5px;
}

a:hover {
  background: #388e3c;
}

html {
  scroll-behavior: smooth;
}

.linkedin {
  background: #0077b5;
  margin-top: 10px;
}

.linkedin:hover {
  background: #005582;
}

.social {
  margin-top: 15px;
}

.social a {
  margin: 0 10px;
  font-size: 20px;
  background: transparent;
  color: white;
}

.social a:hover {
  opacity: 0.7;
}