body {
  font-family: 'Helvetica Neue', sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f2f2f2;
  color: #333;
}

h2, h4 {
  margin: 0;
}

a {
  text-decoration: none;
  color: inherit;
}

/* ---------- HEADER FIJO ---------- */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 0 1.5rem;
  background-color: #4C5F41;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1000;
  height: 80px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.15);
}

header img {
  height: 45px;
}

.nav-menu {
  display: flex;
  gap: 1.2rem;
  flex-wrap: wrap;
}

.nav-menu a {
  color: #ffffff;
  text-decoration: none;
  font-weight: 500;
  font-size: 1rem;
  transition: color 0.3s ease;
}

.nav-menu a:hover {
  color: #d6d1bb;
}

.nav-menu ul {
  list-style: none;
  display: flex;
  gap: 1.2rem;
  flex-wrap: wrap;
  margin: 0;
  padding: 0;
}

.nav-menu li {
  display: inline-block;
}

/* Sección principal */
.voluntariado {
  max-width: 1200px;
  margin: 3rem auto;
  padding: 0 1rem;
  margin-top: 6rem;
}

.voluntariado h4 {
  font-size: 1.2rem;
  color: #3f4c2e;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.voluntariado h2 {
  font-size: 2.2rem;
  margin-bottom: 2rem;
}

/* Tarjetas */
.card-voluntariados {
  background-color: #fff;
  border-radius: 1rem;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  margin-bottom: 2rem;
  overflow: hidden;
  transition: transform 0.3s ease;
}

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

.card-nombre-vol {
  background-color: #3f4c2e;
  color: #fff;
  padding: 1rem;
  font-size: 1.4rem;
  font-weight: 600;
}

.voluntariado-card {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  min-height: 220px;
}

/* Imagen de voluntariado */
.vol-img {
  width: 300px;
  height: 220px;
  object-fit: cover;
  border-radius: 1rem 0 0 1rem;
  flex-shrink: 0;
}

/* Contenido de cada tarjeta */
.vol-content {
  flex: 1;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.vol-content p {
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.boton-voluntariado {
  align-self: flex-start;
  background-color: #3f4c2e;
  color: white;
  padding: 0.7rem 1.5rem;
  border-radius: 2rem;
  font-weight: 600;
  transition: background-color 0.3s ease;
}

.boton-voluntariado:hover {
  background-color: #2e391f;
}

/* Responsive */
@media (max-width: 768px) {
  .voluntariado-card {
    flex-direction: column;
    min-height: auto;
  }

  .vol-img {
    width: 100%;
    height: auto;
    border-radius: 1rem 1rem 0 0;
  }

  .vol-content {
    padding: 1rem;
  }

  .voluntariado h2 {
    font-size: 1.6rem;
  }

  .card-nombre-vol {
    font-size: 1.2rem;
  }
}

/* Responsive */

footer {
  background-color: #4C5F41;
  color: #ffffff;
  text-align: center;
  padding: 1.5rem;
  margin-top: 2rem;
  font-size: 0.9rem;
}