* {
  box-sizing: border-box;
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
  padding: 0;
  margin: 0;
}

body {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 100vh;
  font-family: Arial, Helvetica, sans-serif;
  background: url(../images/amarelo.png) no-repeat #eaeaea;
  background-size: cover;
  color: rgba(28,29,37,.95);
}

p {
  font-size: 16px;
  line-height: 24px;
}

.icon {
  display: inline-block;
  width: 1em;
  height: 1em;
  stroke-width: 0;
  stroke: currentColor;
  fill: currentColor;
}

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}

.page-header {
  padding: 20px 0;
}

.box {
  padding: 20px;
}

.box p {
  color: #fff;
}

.row {
  display: flex;
  display: -webkit-flex;
  flex-direction: column;
}

.row--between {
  justify-content: space-between;
}

.row--between > .col + .col  {
  margin-top: 40px;
}

.row--y-center {
  align-items: center;
}

.col--center {
  display: flex;
  display: -webkit-flex;
  justify-content: center;
  align-items: center;
}

.nav {
  list-style: none;
  display: flex;
  display: -webkit-flex;
}

.nav__item {
  margin: 0 10px;
}

.nav__link {
  font-size: 24px;
  color: rgba(28,29,37,.95);
}

.nav__link:hover {
  color: #2d4e9d;
}

.page-footer {
  margin-top: 20px;
  padding: 20px 0;
}

.copyright {
  text-align: center;
  color: rgba(28,29,37,.95);
}

.alert {
  margin-top: 40px;
  margin-bottom: 20px;
  background-color: rgba(255, 255, 255, .3);
}

.alert p {
  padding: 20px;
  font-size: 18px;
  color: rgba(28,29,37,.95);
}

.alert .fa {
  color: rgba(28,29,37,.95);
  margin-right: 10px;
}

@media (min-width: 650px) {
  p {
    line-height: 36px;
  }

  .row {
    flex-direction: row;
  }

  .row--middle > .col {
    width: 100%;
  }

  .row--between > .col + .col  {
    margin-top: 0;
  }

  .alert p {
    font-size: 28px;
  }
}

@media (min-width: 1100px) {
  .container {
    padding-left: 0;
    padding-right: 0;
  }

  .box {
    padding: 40px;
  }
}