*:root
{
  --roxo: 280, 20%, 5%;
  --amarelo: 60, 100%, 40%;
  --terra: 75px;
}

*, *::after, ::before
{
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}

body
{
  min-height: 900vh;
  background: hsl(var(--roxo)) url("./img/Espaço.jpg");
  background-blend-mode: color-dodge;
  color: hsl(var(--amarelo));
  font-size: 16px;
  font-family:Impact, Haettenschweiler, 'Arial Narrow Bold', sans-serif;
  display: flex;
  width: 100%;
}

header
{
  background: url("./img/Sol.png") bottom no-repeat;
  background-size: 100%;
  background-blend-mode: color-burn;
  height: 375px;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
}

#container
{
  display: flex;
  align-items: center;
  flex-direction: column;
  justify-content: space-between;
  width: 100%;
  animation: atividade-solar 5s infinite linear alternate-reverse;
}

footer
{
  height: 90vh;
  width: 100%;
  background: hsla(0, 0%, 0%, 5%) url("./img/Cinturão_de_Asteroides.png");
  background-repeat: repeat-x;
  filter: drop-shadow();
}

.planeta
{
  font-size: 0em;
  border-radius: 100%;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
  max-width: 100vw;
  box-shadow: 5px 5px 5px hsl(0, 0%, 0%);
}

.planeta:hover
{
  filter: brightness(110%) contrast(150%);
  cursor: pointer;
}

.Mercury
{
  /*0.38*/
  width: calc(0.38 * var(--terra));
  height: calc(0.38 * var(--terra));
  background-image: url("./img/Mercúrio.png");
}

.Venus
{
  /*0.95*/
  width: calc(0.95 * var(--terra));
  height: calc(0.95 * var(--terra));
  background-image: url("./img/Vênus.png");
}

.Earth
{
  /*1*/
  height: var(--terra);
  width: var(--terra);
  background-image: url("./img/Terra.png");
}

.Mars
{
  /*0.53*/
  height: calc(0.53 * var(--terra));
  width: calc(0.53 * var(--terra));
  background-image: url("./img/Marte.png");
}

#CinturaoDeAsteroides
{
  width: 100%;
  height: 200px;
  margin: 50px 0;
  background-image: url("./img/Cinturão_de_Asteroides.png");
  background-size: contain;
  filter: drop-shadow();
}

.Jupiter
{
  /*11.21*/
  height: calc(11.21 * var(--terra));
  width: calc(11.21 * var(--terra));
  background-size: 137%;
  background-image: url("./img/Júpiter.png");
  max-width: 100%;
  box-shadow: none;
}

.Saturn
{
  /*9.45*/
  height: calc(9.45 * var(--terra));
  width: calc(9.45 * var(--terra)*1.75);
  background-image: url("./img/Saturno.png");
  max-width: 100%;
  box-shadow: none;
}

.Uranus
{
  /*8.01*/
  height: calc(8.01 * var(--terra));
  width: calc(8.01 * var(--terra));
  background-image: url("./img/Urano.png");
  background-size: contain;
  max-width: 100%;
  box-shadow: none;
}

.Neptune
{
  /*7.77*/
  height: calc(7.77 * var(--terra));
  width: calc(7.77 * var(--terra));
  background-image: url("./img/Netuno.png");
  max-width: 100%;
  box-shadow: none;
}

.info
{
  height: fit-content;
  padding: 2%;
  width: 95vw;
  border-radius: 50px;
  background-color: hsla(282, 100%, 5%, 95%);
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  font-size: 1.2em;
  box-shadow: 2px 2px 3px hsl(var(--amarelo));
  letter-spacing: .01em;
  margin-bottom: 30px;
}

.info:hover
{
  filter: unset;
  filter: unset;
  cursor: unset;
}

.info span
{
  padding: 15px 4%;
  width: 40%;
  display: flex;
  align-items: center;
  line-height: 1.5em;
}

@keyframes atividade-solar
{
  0%
  {
    filter: brightness(90%);
  }
  100%
  {
    filter: brightness(100%); 
    background-color: hsla(0, 0%, 100%, 0.04);
  }
}

@media screen and (max-width: 780px)
{
  body
  {
    height: 200vh;
    background-color: hsl(280, 100%, 7%);
  }

  header
  {
    height: 175px;
  }

  .info
  {
    background-blend-mode: soft-light;
    font-size: 1em;
  }  
}