.concurso {
  position: relative;
  padding: 60px 20px;
  color: white;
  text-align: center;
  overflow: hidden;
  background-size: cover;
  background-position: center;
}

/* Overlay oscuro para contraste */
.concurso::before {
  content: "";
  position: absolute;
  inset: 0;
  background-color: rgba(41, 60, 100, 0.25);
  z-index: 0;
}

/* Gotas grandes animadas (efecto movimiento suave) */
.concurso::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background-repeat: no-repeat;
  background-size:
    40px 40px,
    60px 60px,
    30px 30px,
    50px 50px,
    35px 35px;
  background-image:
    radial-gradient(circle at center, rgba(69, 119, 211, 0.35) 0%, transparent 70%),
    radial-gradient(circle at center, rgba(255,255,255,0.25) 0%, transparent 70%),
    radial-gradient(circle at center, rgba(255,255,255,0.3) 0%, transparent 70%),
    radial-gradient(circle at center, rgba(255,255,255,0.15) 0%, transparent 70%),
    radial-gradient(circle at center, rgba(255,255,255,0.3) 0%, transparent 70%);
  background-position:
    10% 20%,
    30% 70%,
    50% 40%,
    70% 80%,
    80% 30%;
  animation: gotas-mov 12s linear infinite;
}



/* Contenido sobre gotas  background: rgba(71, 71, 71, 0.65); */
.concurso-contenido {

position: relative;
z-index: 3;
max-width: 800px;
margin: 0 auto;
background: rgba(34, 34, 34, 0.25); /* más transparente */
padding: 40px 30px;
border-radius: 20px;
box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
backdrop-filter: blur(12px) saturate(150%);
-webkit-backdrop-filter: blur(12px) saturate(150%); /* Safari */
border: 1px solid rgba(255, 255, 255, 0.18);

}

.concurso-contenido h1 {
  font-size: 2.4rem;
  margin-bottom: 20px;
  font-weight: 800;
  line-height: 1.3;
}

.concurso-contenido p {
  font-size: 1.2rem;
  margin-bottom: 30px;
  line-height: 1.6;
}

.concurso-destacado {
 color: #c8ff00;
  font-weight: bold;
}

.concurso-boton-llamativo {
  display: inline-block;
  padding: 14px 32px;
  background: linear-gradient(135deg, #00c6ff, #0072ff);
  color: #fff;
  text-decoration: none;
  border-radius: 10px;
  font-weight: bold;
  font-size: 1.1rem;
  transition: transform 0.2s ease, box-shadow 0.3s ease;
  box-shadow: 0 6px 12px rgba(0, 114, 255, 0.4);
}

.concurso-boton-llamativo:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 16px rgba(0, 114, 255, 0.6);
}

/* Animaciones */
@keyframes gotas-mov {
  0% {
    background-position:
      10% 20%,
      30% 70%,
      50% 40%,
      70% 80%,
      80% 30%;
  }
  50% {
    background-position:
      25% 35%,
      45% 60%,
      60% 55%,
      85% 70%,
      95% 50%;
  }
  100% {
    background-position:
      10% 20%,
      30% 70%,
      50% 40%,
      70% 80%,
      80% 30%;
  }
}

@keyframes lluviaSuave {
  0% {
    background-position: 0 0, 0 0;
  }
  100% {
    background-position: 0 800px, 0 800px;
  }
}

/* Responsivo */
@media (max-width: 768px) {
  .concurso-contenido h1 {
    font-size: 1.6rem;
  }

  .concurso-contenido p {
    font-size: 1rem;
  }

  .concurso-boton-llamativo {
    width: 100%;
    font-size: 1rem;
    padding: 14px 0;
  }
}


/* INVIERNO */
/* Fondo azul frío con efecto nieve y cristales */

.slide.invierno {
  position: relative;
  background: linear-gradient(135deg, #1e3c72, #2a5298);
  color:rgb(0, 41, 80);
  padding: 60px 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 400px;
  overflow: hidden;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  text-shadow: 0 0 8px rgba(0, 80, 160, 0.8);
}

/* Contenedor contenido */
.invierno-contenido {
  max-width: 600px;
  text-align: left;
  position: relative;
  z-index: 2;
}

/* Título */
.invierno-contenido h1 {
  font-size: 2.8rem;
  margin-bottom: 20px;
  font-weight: 700;
}

/* Lista de tips */
.invierno-contenido ul {
  list-style: none;
  padding: 0;
  margin-bottom: 25px;
}

.invierno-contenido ul li {
  margin-bottom: 12px;
  font-size: 1.2rem;
  position: relative;
  padding-left: 28px;
  color:rgb(5, 68, 134);
  font-weight: 600;
}

/* Agrego un icono de copo de nieve con CSS (unicode ❄) */
.invierno-contenido ul li::before {
  content: "❄";
  position: absolute;
  left: 0;
  top: 2px;
  font-size: 18px;
  color:rgb(0, 34, 82);
}

/* Botones */
.botones-invierno {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.botones-invierno a {
  padding: 12px 22px;
  border-radius: 10px;
  font-weight: 700;
  text-decoration: none;
  transition: background-color 0.3s ease, color 0.3s ease;
  box-shadow: 0 0 8px rgba(109, 157, 211, 0.6);
  cursor: pointer;
}

/* Botón descargar */
.btn-descargar {
  background-color: #3a6fd8;
  color: #e0f0ff;
  border: 2px solid #68a0ff;
}

.btn-descargar:hover {
  background-color: #68a0ff;
  color: #003366;
  box-shadow: 0 0 12px #a0c8ff;
}

/* Botón postular */
.btn-postular {
  background-color: #a0d8ff;
  color: #004a99;
  border: 2px solid #7ec0ff;
}

.btn-postular:hover {
  background-color: #68a0ff;
  color: white;
  box-shadow: 0 0 12px #0056cc;
}

/* Efecto de copos de nieve animados con pseudoelementos */

.slide.invierno::before,
.slide.invierno::after {
  content: "";
  position: absolute;
  width: 200%;
  height: 200%;
  top: -50%;
  left: -50%;
  background-image:
    radial-gradient(rgba(255, 255, 255, 0.8) 2px, transparent 4px),
    radial-gradient(rgba(255, 255, 255, 0.4) 1.5px, transparent 3px);
  background-size: 60px 60px, 30px 30px;
  background-repeat: repeat;
  animation: snowFall 30s linear infinite;
  z-index: 1;
  pointer-events: none;
  opacity: 0.4;
  filter: drop-shadow(0 0 1px #cce6ff);
}

.slide.invierno::after {
  animation-duration: 45s;
  opacity: 0.25;
  background-position: 15px 15px, 0 0;
}

@keyframes snowFall {
  0% {
    background-position: 0 0, 0 0;
  }
  100% {
    background-position: 0 600px, 0 600px;
  }
}
/* Responsive para pantallas pequeñas */
@media (max-width: 768px) {
  .slide.invierno {
    padding: 40px 15px;
    min-height: auto;
    flex-direction: column;
    text-align: center;
  }

  .invierno-contenido {
    max-width: 100%;
    text-align: center;
  }

  .invierno-contenido h1 {
    font-size: 2rem;
  }

  .invierno-contenido ul li {
    font-size: 1rem;
    padding-left: 24px;
  }

  .botones-invierno {
    justify-content: center;
    flex-direction: column;
    gap: 12px;
  }

  .botones-invierno a {
    font-size: 1rem;
    padding: 10px 18px;
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
  }
}