* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    list-style: none;
    font-family: "Open Sans", sans-serif;
  }
  
  body {
    display: grid;
    place-items: center;
    min-height: 100vh;
    background-color: #171717;
  }
  
  .pricing-plans {
    gap: 32px;
    display: flex;
    flex-wrap: wrap;
    flex-direction: row;
    justify-content: center;
    width: 100%;
    padding: 40px;
  }
  
  .pricing-card {
    --col: #e4e4e7;
    position: relative;
    min-width: 360px;
    padding: 32px;
    padding-bottom: 96px;
    border-radius: 4px;
    border: 2px solid #585858;
    background-color: #26262620;
    box-shadow: 0 0 32px transparent;
    text-align: center;
    transform: translateY(0) scale(1);
    transition: transform 0.5s ease, background-color 0.5s ease, border-color 0.5s ease, box-shadow 0.5s ease;
  }
  
  .pricing-card.basic {
    --col: #0891b2;
  }
  
  .pricing-card.standard {
    --col: #059669;
  }
  
  .pricing-card.premium {
    --col: #c026d3;
  }
  
  .pricing-card:hover {
    border-color: var(--col);
    background-color: #26262680;
    box-shadow: 0 0 32px #171717;
    transform: translateY(-16px) scale(1.02);
    transition: all 0.5s ease;
  }
  
  .pricing-card > *:not(:last-child) {
    margin-bottom: 32px;
  }
  
  .pricing-card .heading h4 {
    padding-bottom: 12px;
    color: var(--col);
    font-size: 24px;
    font-weight: normal;
  }
  
  .pricing-card .heading p {
    color: #ffbb00;
    font-size: 14px;
    font-weight: lighter;
  }
  
  .pricing-card .price {
    position: relative;
    color: var(--col);
    font-size: 50px;
    font-weight: bold;
  }
  
  .pricing-card .price sub {
    position: absolute;
    bottom: 14px;
    color: #ffffff;
    font-size: 14px;
    font-weight: lighter;
  }
  
  .pricing-card .features li {
    padding-bottom: 16px;
    color: #a3a3a3;
    font-size: 16px;
    font-weight: lighter;
    text-align: left;
  }
  
  .pricing-card .features li i,
  .pricing-card .features li strong {
    color: #e4e4e7;
    font-size: 16px;
    text-align: left;
  }
  
  .pricing-card .features li strong {
    padding-left: 24px;
  }
  
  .pricing-card .cta-btn {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    padding: 12px;
    border-radius: 4px;
    border: 1px solid var(--col);
    background-color: var(--col);
    color: #e4e4e7;
    font-size: 20px;
    font-weight: bold;
    cursor: pointer;
  }
  
  .pricing-card .cta-btn:active {
    background-color: transparent;
    color: var(--col);
    transition: all 0.3s ease;
  }

  /* button */
.btn1 {
  margin: 2px;
  padding: 15px 40px;
  border: none;
  outline: none;
  color: #FFF;
  cursor: pointer;
  position: relative;
  z-index: 0;
  border-radius: 12px;
}
.btn1::after {
  content: "";
  z-index: -1;
  position: absolute;
  width: 100%;
  height: 100%;
  background-color: #333;
  left: 0;
  top: 0;
  border-radius: 10px;
}
/* glow */
.btn1::before {
  content: "";
  background: linear-gradient(
    45deg,
    #FF0000, #FF7300, #FFFB00, #48FF00,
    #00FFD5, #002BFF, #FF00C8, #FF0000
  );
  position: absolute;
  top: -2px;
  left: -2px;
  background-size: 600%;
  z-index: -1;
  width: calc(100% + 4px);
  height:  calc(100% + 4px);
  filter: blur(8px);
  animation: glowing 20s linear infinite;
  transition: opacity .3s ease-in-out;
  border-radius: 10px;
  opacity: 0;
}

@keyframes glowing {
  0% {background-position: 0 0;}
  50% {background-position: 400% 0;}
  100% {background-position: 0 0;}
}

/* hover */
.btn1:hover::before {
  opacity: 1;
  color: #ffffff;
}

.btn1:active:after {
  background: transparent;
}

.btn1:active {
  color: #ffffff;
  font-weight: bold;
}