.slider {
  margin: 0 auto;
  width: 100%;
  overflow: hidden;
  position: relative;
}

.slides {
  width: 400%;
  display: flex;
}

.slides input {
  display: none;
}

.slide {
  width: 25%;
  position: relative;
  transition: 2s;
}

.slide img {
  width: 100%;
  object-fit: cover;
  filter: brightness(0.63);
}

.manual-navegation,
.navegation-auto {
  position: absolute;
  bottom: 20px;
  width: 100%;
  height: 60px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.manual-navegation {
  z-index: 10;
}

.navegation-auto {
  z-index: 5;
}

.manual-btn,
.navegation-auto div {
  border: 2px solid #fff;
  padding: 5px;
  border-radius: 10px;
  cursor: pointer;
  transition: 0.5s;
}

.manual-btn:not(:last-child),
.navegation-auto div:not(:last-child) {
  margin-right: 40px;
}

.manual-btn:hover {
  background-color: #fff;
}

#radio1:checked ~ .navegation-auto .auto-btn1,
#radio2:checked ~ .navegation-auto .auto-btn2,
#radio3:checked ~ .navegation-auto .auto-btn3,
#radio4:checked ~ .navegation-auto .auto-btn4 {
  background-color: #fff;
}

#radio1:checked ~ .first {
  margin-left: 0;
}
#radio2:checked ~ .first {
  margin-left: -25%;
}
#radio3:checked ~ .first {
  margin-left: -50%;
}
#radio4:checked ~ .first {
  margin-left: -75%;
}


.slide-texto {
  position: absolute;
  top: 50%;
  
  transform: translateY(-50%);
  color: #fff;
  z-index: 10;
  max-width: 500px;
  font-family: sans-serif;
}

.slide-texto h2 {
  font-size: 2.5rem;
  margin-bottom: 10px;
}

.slide-texto p {
  font-size: 1.2rem;
}