* {
  margin: 0;
  padding: 0;
}

:root {
  --primary-heading-color: #3b3472;
  --color-heading: #231d4f;
  --color-button: #bb6bd9;
  --color-text: #848199;
}

html {
  height: 100%;
}

body {
  color: var(--color-text);
  font-family: "poppins";
}

#wrapper {
  background: rgb(150, 177, 198);
  background: linear-gradient(
    360deg,
    rgba(150, 177, 198, 1) 0%,
    rgba(225, 197, 211, 1) 23%,
    rgba(225, 215, 213, 1) 42%
  );
  min-height: 100vh;
}

button {
  cursor: pointer;
  transition: background-color 0.3s;
}

header {
  align-items: center;
  display: flex;
  justify-content: space-between;
  margin-bottom: 40px;
  padding: 10px;
}

header .menu-icon {
  color: var(--color-heading);
  height: 31px;
  margin-left: 15px;
  width: 50px;
}

header #join-btn {
  background-color: var(--color-button);
  border: none;
  border-radius: 24px;
  color: #fff;
  margin-right: 15px;
  padding: 10px 30px;
}

header #join-btn:hover {
  background-color: #d1a1e2;
}

#intro {
  margin: 0 auto;
  width: 90%;
}

#intro h1 {
  color: var(--color-heading);
  font-size: 40px;
  margin-bottom: 25px;
}

#intro-text {
  display: flex;
  flex-direction: column;
  font-size: 20px;
  font-weight: 500;
}

.billing-options-tab {
  align-items: center;
  background-color: rgba(255, 255, 255, 0.5);
  border-radius: 22px;
  cursor: pointer;
  display: flex;
  font-weight: 300;
  margin-top: 20px;
  position: relative;
}

.billing-option {
  color: var(--color-heading);
  flex: 1;
  text-align: center;
  transition: color 0.2s;
}

.billing-option.active {
  background-color: var(--color-button);
  border-radius: 22px;
  color: white;
  padding: 10px;
}

#pricing {
  align-items: center;
  background-color: rgb(255, 255, 255, 0.5);
  display: flex;
  flex-direction: column;
  font-size: 18px;
  gap: 33px;
  margin: 64px 0;
  padding: 15px;
}

.tier {
  align-items: center;

  border-radius: 26px;
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  min-height: 500px;
  padding: 10px;
  width: 95%;
}

.popular-tier {
  background-color: #231d4f;
  color: #fff;
  position: relative;
}

.popular-tier .price,
.popular-tier .interval,
.popular-tier .tier-name {
  color: #fff;
}

.popular-tier .plan-btn {
  background-color: var(--color-button);
  color: #fff;
  opacity: 1;
  transition: background-color 0.3s ease;
}

.popular-tier .plan-btn:hover,
.popular-tier .plan-btn:active {
  background-color: #d1a1e2;
}

.popular-tier-notice {
  color: var(--color-button);
  background-color: #403879;
  border-radius: 13.5px;
  font-weight: 600;
  margin-right: 20px;
  padding: 7px 16px;
  position: absolute;
  top: 10px;
  text-transform: uppercase;
  right: -10px;
}

.price {
  color: var(--color-heading);
  font-size: 36px;
  margin: 35px 0 20px 0;
}

.interval {
  color: var(--color-text);
  font-size: 17px;
  font-weight: 400;
}

.tier-name {
  color: var(--color-heading);
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 6px;
}

.tagline {
  margin-bottom: 20px;
  text-align: center;
}

.features {
  list-style-type: none;
}

.features li {
  margin: 8px;
  position: relative;
  padding-left: 30px;
}

.features li::before {
  align-items: center;
  background-color: rgb(82, 67, 194, 0.15);
  border-radius: 100%;
  color: var(--color-button);
  content: "✔";
  display: flex;
  font-size: 15px;
  height: 20px;
  justify-content: center;
  left: 0;
  padding: 1px;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 21px;
}

.popular-tier .features li::before {
  background-color: rgb(255, 255, 255, 0.15);
  color: #fff;
}

.plan-btn {
  background-color: #231d4f;
  border: none;
  border-radius: 24px;
  color: #fff;
  height: 45px;
  margin-top: 27px;
  opacity: 50%;
  padding: 10px 65px;
  transition: opacity 0.3s ease;
}

.plan-btn:hover,
.plan-btn:active {
  opacity: 1;
}

@media (min-width: 768px) {
  .tier {
    width: 75%;
  }
}

@media (min-width: 992px) {
  #intro {
    margin-bottom: 200px;
  }

  #pricing {
    flex-direction: row;
    justify-content: center;
  }

  .tier {
    width: 20%;
  }

  #intro-text {
    align-items: center;
    flex-direction: row;
  }

  .billing-options-tab {
    margin: 0 0 0 55px;
    width: 10%;
  }
}