/* 🟢 Estilo A - Borde degradado */
.gradient-border {
  position: relative;
  border-radius: 20px;
  padding: 2px;
  background: linear-gradient(135deg, #38f9d7, #6c63ff, #a855f7);
}

.gradient-border .card-dark {
  background-color: #111;
  border-radius: 18px;
}

/* 🔵 Estilo B - Fondo completo con degradado */
.card-gradient {
  background: linear-gradient(135deg, #38f9d7, #6c63ff, #a855f7);
  color: white;
  border: none;
}

/* 🟣 Estilo C - Fondo negro con sombra interior de color (resplandor) */
.card-glow {
  background-color: #111;
  color: white;
  border: none;
  box-shadow: 0 0 15px rgba(104, 255, 255, 0.3),
              0 0 25px rgba(108, 99, 255, 0.2),
              0 0 35px rgba(168, 85, 247, 0.2);
}

.icon-gradient {
  background: linear-gradient(135deg, #38f9d7, #6c63ff, #a855f7);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent; /* por compatibilidad adicional */
}


/* 🌈 Icono con degradado relleno */
.icon-gradient {
  background: linear-gradient(135deg, #38f9d7, #6c63ff, #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}


.card-moving-line {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  padding: 4px; /* deja ver el borde animado */
  background: transparent;
  z-index: 1;
}

.card-moving-line::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 200%;
  height: 200%;
  background: conic-gradient(
    #38f9d7,
    #6c63ff,
    #a855f7,
    #38f9d7
  );
  animation: spinBorder 6s linear infinite;
  z-index: 0;
}

.card-content {
  position: relative;
  background-color: #111;
  border-radius: 16px;
  padding: 2rem;
  color: white;
  z-index: 1;
  height: 100%;
}

@keyframes spinBorder {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}