:root {
  --white: hsl(0, 0%, 100%);
  --light-grayish-violet: hsl(270, 3%, 87%);
  --dark-grayish-violet: hsl(279, 6%, 55%);
  --very-dark-violet: hsl(278, 68%, 11%);
  --red: hsl(0, 100%, 66%);

  /* cards */

  --card-hight-mobile: 168px;
  --card-width-mobile: 280px;

  --card-hight-desktop: 245px;
  --card-width-desktop: 447px;

  --font-size: 18px;
  --small-font-size: 11px;
  --font-family: "Outfit", sans-serif;
}

input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
  /* display: none; <- Crashes Chrome on hover */
  -webkit-appearance: none;
  margin: 0; /* <-- Apparently some margin are still there even though it's hidden */
}

input[type="number"] {
  -moz-appearance: textfield; /* Firefox */
}

body {
  margin: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  font-family: var(--font-family);
  font-size: var(--font-size);
  font-weight: 500;
}

.cards-container {
  display: flex;
  justify-content: center;
  width: 100%;
  background-image: url("./images/bg-main-mobile.png");
  background-size: cover;
  background-repeat: no-repeat;
  margin-bottom: 50px;
}

.cards {
  position: relative;
  color: var(--white);
  height: 230px;
  width: 375px;
}

.card-back {
  position: absolute;
  background-image: url("./images/bg-card-back.png");
  background-size: contain;
  background-repeat: no-repeat;
  height: var(--card-hight-mobile);
  width: var(--card-width-mobile);
  top: 22px;
  right: 20px;
}

.csc {
  position: absolute;
  right: 35px;
  top: 60px;
  font-size: var(--small-font-size);
}

.card-front {
  position: absolute;
  background-image: url("./images/bg-card-front.png");
  background-size: contain;
  background-repeat: no-repeat;
  height: var(--card-hight-mobile);
  width: var(--card-width-mobile);
  bottom: -46px;
  left: 15px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.front-card-container {
  width: 85%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

.card-front img {
  height: 30px;
  width: 45px;
  margin-top: 10px;
}

.front-card-details {
  margin-top: 30px;
}

.card-number {
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;
}

.card-number > * {
  letter-spacing: 1.5px;
}

.name-and-exp-date {
  display: flex;
  justify-content: space-between;
  font-size: var(--small-font-size);
  margin-top: 20px;
}

.name-and-exp-date p {
  margin-top: 0;
}

.form-container {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

form {
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: 90%;
  max-width: 400px;
}

input {
  height: 40px;
  border-radius: 10px;
  border: 0.5px solid var(--light-grayish-violet);
}

input::placeholder {
  font-size: var(--font-size);
  color: var(--light-grayish-violet);
  text-indent: 10px;
}

.error-outline {
  border-color: var(--red);
}

.error {
  position: absolute;
  font-size: var(--small-font-size);
  color: var(--red);
  bottom: -18px;
}

.form-item {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  margin: 15px 0;
}

label,
legend {
  font-size: 12px;
  margin-bottom: 10px;
  letter-spacing: 1.5px;
}

.exp-date-form {
  all: unset;
}

.exp-date-inputs {
  position: relative;
  display: flex;
  flex-direction: row;
}

.exp-date-inputs > input {
  width: 60px;
  margin-right: 10px;
}

.exp-date-and-cvc {
  display: flex;
  justify-content: flex-start;
  align-items: center;
}

.form-cvc {
  width: 100%;
}

button {
  height: 55px;
  margin: 20px 0;
  background-color: var(--very-dark-violet);
  color: var(--white);
  font-size: var(--font-size);
  border-radius: 10px;
  border: none;
}

button:hover {
  cursor: pointer;
}

.thank-you {
  width: 90%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
  max-width: 400px;
  margin-top: 30px;
}

.hidden {
  display: none;
}

.thank-you img {
  width: 80px;
  margin: 0 auto;
}

.thank-you-text {
  font-size: 27px;
  color: var(--very-dark-violet);
  margin-bottom: 0;
  letter-spacing: 1.5px;
}

.card-added-text {
  font-size: 21px;
  color: var(--dark-grayish-violet);
}

.attribution {
  margin-top: auto;
  font-size: 11px;
  text-align: center;
}
.attribution a {
  color: hsl(228, 45%, 44%);
}

@media (min-width: 1440px) {
  body {
    flex-direction: row;
    align-items: center;
  }

  .attribution {
    all: unset;
    display: none;
  }

  .cards-container {
    display: flex;
    align-items: center;
    margin: 0;
    min-height: 100vh;
    max-width: 500px;
    background-image: url("./images/bg-main-desktop.png");
    background-size: cover;
  }

  .card-front {
    left: unset;
    right: unset;
    top: unset;
    bottom: unset;
    height: var(--card-hight-desktop);
    width: var(--card-width-desktop);
    top: -175px;
    right: -180px;
  }

  .card-back {
    left: unset;
    right: unset;
    top: unset;
    bottom: unset;
    height: var(--card-hight-desktop);
    width: var(--card-width-desktop);
    bottom: -120px;
    right: -270px;
  }

  .csc {
    position: absolute;
    right: unset;
    top: unset;
    right: 60px;
    top: 95px;
    font-size: 16px;
  }

  .card-front {
    font-size: 24px;
  }

  .card-front img {
    height: 47px;
    width: 84px;
    margin-top: 25px;
  }

  .front-card-details {
    margin-top: 50px;
  }

  .card-number span {
    letter-spacing: 4px;
  }

  .name-and-exp-date {
    font-size: 12px;
    margin-top: 40px;
    letter-spacing: 2px;
  }

  .form-container {
    width: 100%;
    align-items: center;
  }

  form {
    width: 400px;
  }

  .thank-you {
    width: 400px;
  }
}