@import url("https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,100..900;1,100..900&display=swap");

* {
  box-sizing: border-box;
}

html {
  font-size: 62.5%;
}

body {
  font-size: 1.6rem;
  font-family: "Roboto", sans-serif;
}

/* COMMON */
.container {
  max-width: 1320px;
  padding: 0 20px;
  margin-left: auto;
  margin-right: auto;
}

/* Nav-bar */
.nav-bar {
  position: fixed;
  top: 0;
  z-index: 999;
  color: #fff;
  width: 100%;
  padding: 12px 0;
  background: #14485b;
}

.nav-bar .header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-bar .logo {
  font-size: 2.8rem;
  font-weight: bold;
}

.nav-bar .nav-menu {
  display: flex;
}

.nav-bar .nav-item .nav-link {
  color: #fff;
  padding: 18px;
  font-size: 1.9rem;
  text-decoration: none;
}

.nav-bar .nav-item .nav-link:hover {
  background: rgba(225, 225, 225, 0.1);
}

.nav-bar .nav-link.active {
  background: rgba(225, 225, 225, 0.1);
}

/* Body Content */
.body-content {
  margin-top: 90px;
}

.body-content .page {
  display: none;
  animation: slideUp 0.5s;
}

.body-content .page.active {
  display: block;
}

@keyframes slideUp {
  0% {
    opacity: 0;
    transform: translateY(20px);
  }

  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

.body-content .body-element {
  text-align: center;
}

.body-content .body-element h2 {
  font-size: 3rem;
  text-transform: uppercase;
  margin-bottom: 8px;
}

/* History Length */
.history-info {
  position: fixed;
  right: 40px;
  bottom: 30px;
  color: #fff;
  background: #14485b;
  padding: 16px;
  border-radius: 24px;
}