:root {
  --Blue: hsl(246, 80%, 60%);
  --Light-orange: hsl(15, 100%, 70%);
  --Soft-blue: hsl(195, 74%, 62%);
  --Light-red: hsl(348, 100%, 68%);
  --Lime-green: hsl(145, 58%, 55%);
  --Violet: hsl(264, 64%, 52%);
  --Soft-orange: hsl(43, 84%, 65%);

  --blue: hsl(226, 43%, 10%);
  --Dark-blue: hsl(235, 46%, 20%);
  --Desaturated-blue: hsl(235, 45%, 61%);
  --Pale-Blue: hsl(236, 100%, 87%);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Rubik", sans-serif;
}

body {
  background: var(--blue);
}

.container {
  padding: 2rem;
  max-width: 1200px;
  margin: auto;
  display: flex;
  flex-direction: column;
}

header {
  background: var(--Dark-blue);
  border-radius: 1rem;
}

.user-info {
  padding: 1.5rem;
  border-radius: 1rem;
  background: var(--Blue);
  display: flex;
  align-items: center;
}

.user-info > div > img {
  height: 4rem;
  border: 3px solid #efefef;
  border-radius: 50%;
}

.user-info h1 {
  color: #cfcfcf;
  font-size: 14px;
  font-weight: 300;
  margin-left: 1rem;
}

.user-info h2 {
  color: #efefef;
  margin-left: 1rem;
  font-size: 22px;
  font-weight: 300;
}

.time-selector {
  padding: 1.5rem;
  display: flex;
}

.time-selected {
  color: #efefef !important;
}

.time-selector button {
  background: transparent;
  color: var(--Desaturated-blue);
  font-size: 18px;
  border: none;
  width: 33%;
  cursor: pointer;
}

.time-selector button:hover {
  color: var(--Pale-Blue);
}

.card {
  margin-top: 1rem;
  border-radius: 1rem;
  position: relative;
  overflow: hidden;
  color: #efefef;
}

.card > img {
  position: absolute;
  right: 1.5rem;
  top: -12px;
  z-index: 0;
}

.card > div {
  position: relative;
  margin-top: 2.3rem;
  padding: 1.5rem;
  background: var(--Dark-blue);
  border-radius: 1rem;
  z-index: 2;
}

.card-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.card-header h3 {
  font-weight: 400;
}

.card-header button {
  background: none;
  border: none;
  cursor: pointer;
}

.card-body {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-body > :nth-child(1) {
  font-size: 26px;
  font-weight: 300;
}

.card-body > :nth-child(2) {
  color: var(--Pale-Blue);
  font-size: 14px;
}

#work-card {
  background: var(--Light-orange);
}
#play-card {
  background: var(--Soft-blue);
}
#study-card {
  background: var(--Light-red);
}
#exercise-card {
  background: var(--Lime-green);
}
#social-card {
  background: var(--Violet);
}
#self-care-card {
  background: var(--Soft-orange);
}

.attribution {
  color: #cfcfcf;
  padding: 1rem;
  text-align: center;
}

.attribution a {
  color: #cfcfcf;
}

@media screen and (min-width: 641px) {
  main {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
  }
  .card {
    width: calc(50% - 0.5rem);
  }
}

@media screen and (min-width: 769px) {
  .container {
    flex-direction: row;
  }
  .user-info {
    flex-direction: column;
    align-items: flex-start;
  }
  .user-data {
    margin: 2rem 0 4rem 0;
  }
  .user-info h1,
  .user-info h2 {
    margin-left: 0;
  }
  .user-info h2 {
    font-size: 32px;
  }
  .time-selector {
    flex-direction: column;
    justify-content: space-around;
  }

  .time-selector button {
    padding: 0.4rem 0;
    margin: 0.4rem 0;
    width: fit-content;
    text-align: left;
  }

  main {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    margin-left: 2rem;
    grid-gap: 2rem;
    width: 100%;
  }

  .card {
    margin: 0;
    width: 100%;
  }

  .card > div {
    height: 100%;
  }

  .card-body {
    flex-direction: column;
    align-items: flex-start;
    margin-top: 2rem;
  }

  .card-body > :nth-child(1) {
    font-size: 3rem;
  }

  .card-body > :nth-child(2) {
    margin-top: 1rem;
  }
}