body {
  margin: 0;
  padding: 0;
  background-color: #F5F6F9;
  position: relative;
  font-family: 'Montserrat', sans-serif;
}

.hidden {
  display: none;
}

.header {
  padding: 30px 40px 30px 190px;
  background-color: rgba(201, 208, 223, 0.2);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__title {
  font-weight: 600;
  font-size: 24px;
  line-height: 29px;
  color: #5E7078;
}

.header__date {
  color: rgba(112, 175, 204, 0.8);
  font-size: 28px;
  line-height: 34px;
  font-weight: 400;
}

.header__weekday, .header__time {
  font-weight: 600;
}

.header__time {
  padding-left: 10px;
}

.header__period {
  font-size: 17px;
  line-height: 20px;
  vertical-align: super;
}

.nav {
  width: 120px;
  background-color: #fff;
  box-shadow: 0 0 4px 0 rgba(29, 39, 41, 0.15);
  position: absolute;
  top: 15px;
  bottom: 15px;
  left: 25px;
  min-height: calc(100vh - 30px);
}

.nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav__link {
  padding: 20px;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  color: #728892;
  font-weight: 600;
  font-size: 14px;
  line-height: 18px;
  text-decoration: none;
  text-transform: uppercase;
}

.nav__link:first-child {
  padding: 30px;
}

.nav__link--active {
  background-color: rgba(112, 175, 204, 0.1);
}

.nav__icon {
  margin-bottom: 10px;
  max-width: 100%;
  height: 36px;
  display: block;
}

.nav__item {
  margin-bottom: 60px;
}

.dashboard {
  padding: 40px 40px 40px 190px;
}

.dashboard__cycle {
  margin: 0;
  font-weight: 400;
  color: #70AFCC;
  font-size: 18px;
  line-height: 22px;
}

.dashboard__cycle .cycle__date {
  font-weight: 600;
}

.dashboard__box,
.dashboard__cycle {
  margin-bottom: 20px;
}

@media (min-width: 1160px) {
  .dashboard__box,
  .dashboard__cycle {
    margin: 0;
  }

  #overview {
    display: grid;
    grid-template-columns: 50px 230px 60px 110px 60px 110px 60px 230px 50px;
    grid-auto-flow: row;
    grid-auto-rows: 300px;
    grid-row-gap: 60px;
    justify-content: center;
  }
  
  .dashboard__box--1 {
    grid-column: 2 / 5;
    grid-row: 1 / 1;
  }
  
  .dashboard__box--2 {
    grid-column: 6 / 9;
    grid-row: 1 / 1;
  }
  
  .dashboard__box--3 {
    grid-column: 1 / 3;
    grid-row: 2 / 2;
  }
  
  .dashboard__box--4 {
    grid-column: 4 / 7;
    grid-row: 2 / 2;
  }
  
  .dashboard__box--5 {
    grid-column: 8 / 10;
    grid-row: 2 / 2;
  }
  
  #usage {
    display: grid;
    grid-template-columns: 836px 360px;
    grid-template-rows: max-content 360px 360px;
    grid-auto-flow: row;
    grid-gap: 30px;
    justify-content: center;
  }
  
  #usage .dashboard__cycle {
    grid-column: 1 / -1;
  }
  
  #costs {
    display: grid;
    grid-template-columns: 800px 400px;
    grid-template-rows: max-content 220px 400px;
    grid-auto-flow: row;
    grid-gap: 30px;
    justify-content: center;
  }
  
  #costs .dashboard__cycle {
    grid-column: 1 / -1;
  }
  
  .dashboard__box--10 {
    grid-column: 1 / -1;
    width: 660px;
    justify-self: center;
  }
}