style.css

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

:root {
  --text-color: #404040;
  --bg-color: #fff;
  --card-bg-color:hsl(227, 47%, 96%);
  --card-bg-color-active: hsl(226, 37%, 88%);
}

:root .dark-theme{
  --text-color: #FFF;
  --bg-color: linear-gradient(180deg, #191926 30%, #10101a 0);
  --card-bg-color: hsl(228, 28%, 20%);
  --card-bg-color-active: hsl(227, 29%, 32%);
} 

body{
    margin: 0;
    line-height: 1.6;
    color: var(--text-color);
    min-height: 100vh;
    background: var(--bg-color);
    background-repeat: no-repeat;
    font-size: .875rem;
    font-family: 'Inter', sans-serif;
    
}

img{
  max-width: 100%;
}



/* ----------------- */
/*   main layout     */
/* ----------------- */
.container{
  width: 90%;
  margin: 2em auto;
}

.main-grid, .overview-grid{
  max-width: 1000px;
  display: flex;
  flex-direction: column;
  gap: 2em; 
  justify-content: center;
  text-align: center;
  margin: 0 auto;
  
  
}

.dark-mode-container{
  display: flex;
  justify-content: space-between;
  margin-top: 1em;
  
}

.main-text{
  grid-column: span 2;
  padding-bottom: 1em;
  text-align: left;
  border-bottom: 1px solid #404040;
}

@media (min-width: 500px){
  .main-grid, .overview-grid{
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); 
  }

  .d-flex{
    max-width: 1000px;
    display: flex;
    justify-content: space-between;
    margin: 0 auto;
  }

  .main-text{
    border: 0;
    
  }

  .main-grid, .overview-grid{
    gap: 1em;
  }

  .dark-mode-container{
    grid-row: 1;
    grid-column: -1 / -2;
    justify-content: flex-end;
    
  }

  .dark-mode-text{
    margin-right: 1em;
  }

  .slider-container{
    align-self: center;
  }
}

.title-section{
  margin-bottom: 1em;
  gap: 0;
  grid-auto-flow: dense;
}
.subtitle{
  grid-column: 1 / span 2;
  justify-self: left;
}

/* ----------------- */
/*    typography     */
/* ----------------- */

h1, h2, p{
  margin: 0;
}

.main-card{
  max-width: 600px;
  padding: 2em 0;
}

.dashboard-title{
  font-weight: 700;
}

.dashboard-subtitle, 
.dark-mode-text{
  font-size: .8rem;
  font-weight: 700;
}

.social-icon{
  margin-bottom: 1em;
}

.followers-num{
  line-height: 1.1;
  font-size: 3.5rem;
  font-weight: 700;
}

.followers-text{
  
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 2em;
}

.dashboard-subtitle, 
.dark-mode-text,
.followers-text{
  opacity: .7;
}

.today-num{
  font-weight: 700;
}

.overview{
  margin: 1em auto;
  text-align: left;
}

.overview-card-num{
  font-size: 1.5rem;
  font-weight: 700;
}

.green{
  color: hsl(163, 72%, 41%);
}

.red{
  color: hsl(356, 69%, 56%);
}

.green::before{
  content: url(./images/icon-up.svg);
}

.red::before{
  content: url(./images/icon-down.svg);
}

.green::before,
.red::before{
  width: 10px;
  padding: 3px;
  position: relative;
  bottom: 3px;
}



/* - main card - */
.main-card,
.overview-card{
  background-color:var(--card-bg-color);
  border-radius: 5px;
}

.main-card:focus,
.overview-card:focus,
.main-card:hover,
.overview-card:hover{
  background-color: var(--card-bg-color-active);
}

.main-card--fb-tw{
  border-top: 5px solid hsl(208, 92%, 53%);
}

.main-card--insta{
  position: relative;
  top: 2px;
  border: 2px solid transparent;
  background-clip: padding-box;
}

.main-card--insta::after{
  position: absolute;
  content: '';
  top: -5px; bottom: 0;
  left: 0; right: 0;
  background: linear-gradient(90deg, hsl(37, 97%, 70%), hsl(329, 70%, 58%));
  border-radius: 10px;
  z-index: -1;
}

.main-card--yt{
  border-top: 5px solid hsl(348, 97%, 39%);
}

.icon-container{
  display: flex;
  gap: 5px;
  justify-content: center;
}

/* - dark mode slider - */

.dark-mode-text{
  grid-column: 1;
  justify-self: left;
  align-self: center;
}

.toggle-button {
  position: relative;
  display: inline-block;
  align-self: center;
  width: 40px;
  height: 20px;
  margin: 0;
  vertical-align: top;
  background: hsl(230, 22%, 74%);
  
  border-radius: 30px;
  outline: none;
  cursor: pointer;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  transition: all 0.3s cubic-bezier(0.2, 0.85, 0.32, 1.2);
 }
 
 .toggle-button::after {
  content: "";

  display: inline-block;
  position: absolute;
  left: 1px;
  top: 1px;

  width: 18px;
  height: 18px;
  background-color: #fff;
  border-radius: 50%;

  transform: translateX(0);
  transition: all 0.3s cubic-bezier(0.2, 0.85, 0.32, 1.2);
}

.toggle-button:checked::after {
  transform: translateX(calc(100% + 2px));
  background-color: hsl(228, 28%, 20%);  
}
.toggle-button:checked {
  background-image: linear-gradient(to right, hsl(146, 68%, 55%), hsl(210, 78%, 56%));
}

/* overview card */
.overview-card{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-auto-flow: dense;
  padding: 1em;
  gap: 1em;
  
}

.overview-icon{
  margin: 0;
  
}

.overview-card-label,
.overview-card-num{
  grid-column: 1;
  justify-self: start;
  align-self: center;
}

.overview-icon,
.overview-percent{
  grid-column: 2;
  justify-self: end;
  align-self: center;
}