:root {
  /* Colors */
  --Light-Cyan: hsl(193, 38%, 86%);
  --Neon-Green: hsl(150, 100%, 66%);
  --Grayish-Blue: hsl(217, 19%, 38%);
  --Dark-Grayish-Blue: hsl(217, 19%, 24%);
  --Dark-Blue: hsl(218, 23%, 16%);
}

/** Reset **/
html {
  box-sizing: border-box;
  font-size: 16px;
  font-family: "Manrope", sans-serif;
}

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: inherit;
  font-size: inherit;
}

body {
  background-color: var(--Dark-Blue);
}

/** Pages styles **/
.loader {
  margin-top: 1rem;
  display: none;
}

.card {
  margin: 12rem auto;
  width: 343px;
  background-color: var(--Dark-Grayish-Blue);
  box-shadow: 3rem 5rem 8rem rgb(0 0 0 / 10%);
  padding: 2.5rem 1.5rem 4rem;
  text-align: center;
  border-radius: 0.7rem;
  position: relative;
}

.card > h1 {
  color: var(--Neon-Green);
  font-size: 0.7rem;
  letter-spacing: 3px;
  text-transform: uppercase;
}

.card > p {
  margin-top: 1.5rem;
  font-size: 1.75rem;
  color: var(--Light-Cyan);
}

.card > picture {
  display: block;
  margin-top: 1.5rem;
}

.card > .btn {
  background-color: var(--Neon-Green);
  border-radius: 50%;
  cursor: pointer;
  position: absolute;
  width: 4rem;
  height: 4rem;
  display: flex;
  justify-content: center;
  align-items: center;
  bottom: -2rem;
  left: calc(50% - 2rem);
}

.btn:hover {
  box-shadow: 0px 0px 40px #53ffaa;
  transition: 0.3s;
}

.attribution {
  color: var(--Light-Cyan);
  font-size: 11px;
  text-align: center;
}

.attribution a {
  color: var(--Neon-Green);
  text-decoration: none;
}

/** MediaQuerie **/
@media (min-width: 768px) {
  .card {
    width: 540px;
    padding: 3rem 2rem 4.5rem;
  }

  .card > h1 {
    font-size: 0.8rem;
  }

  .card > p {
    margin-top: 2rem;
  }

  .card > picture {
    margin-top: 2.5rem;
  }
}

@media (min-width: 1024px) {
  .card {
    margin: 13.9375rem auto 15rem auto;
  }
}