html, body {
  margin: 0;
  padding: 0;
  background: #f4f4f4;
  font-family: Arial, Helvetica, sans-serif;
  color: #444;
}

#top {
  width: 100%;
  background: white;
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}

#imgtop {
  width: 100%;
  display: block;
}

#contenido {
  max-width: 520px;
  margin: auto;
  padding: 24px;
}

.bloquebienvenida {
  background: white;
  border-radius: 14px;
  padding: 24px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
}

.titulo1 {
  font-size: 28px;
  font-weight: bold;
  color: #444;
  text-align: center;
  margin-bottom: 18px;
}

.texto1 {
  font-size: 17px;
  line-height: 1.6;
  text-align: center;
  color: #666;
}

.areabotones {
  margin-top: 28px;
}

.btnprincipal {
  width: 100%;
  height: 56px;
  border: 0;
  border-radius: 12px;
  background: #1d78c8;
  color: white;
  font-size: 19px;
  cursor: pointer;
  margin-bottom: 14px;
}

.btnprincipal:hover {
  opacity: 0.92;
}

.btnsecundario {
  width: 100%;
  height: 56px;
  border: 2px solid #1d78c8;
  border-radius: 12px;
  background: white;
  color: #1d78c8;
  font-size: 19px;
  cursor: pointer;
}

.btnsecundario:hover {
  background: #f0f7ff;
}

.pieinfo {
  margin-top: 30px;
  text-align: center;
  color: #888;
  font-size: 14px;
}