*{
  margin:0;
  padding:0;
  font-family: sans-serif;
}

tbody tr:hover {
  background-color: lightblue;
  color: #666666;
}
.margintop {
  margin-top: 2em;
}
.marginleft {
    margin-left: 25em;
}
.marginlefthalf {
    margin-left: 1em;
}
.error {
  color: red;
}
.success {
  color: green;
}

@keyframes page-load {
  from {
      background-color: #2856aa;
      width: 0%;
  }
  to {
      background-color: #18e7d6;
      width: 100%;
  }
}

.shadowgreen {
  background: linear-gradient(to top right, #ffffff, #79c191); 
  border-radius: 10px;
  box-shadow: 5px 5px 10px rgba(0, 0, 0, 0.3);
  transition: box-shadow 0.3s;
}
.shadowgreenNav {
  background: linear-gradient(to top right, #4fc95f, #033416); 
  border-radius: 10px;
  box-shadow: 5px 5px 10px rgba(0, 0, 0, 0.3);
  transition: box-shadow 0.3s;
}

.shadowgreen:hover {
  box-shadow: 10px 10px 20px rgba(0, 0, 0, 0.6);
}

.center-content {
  display: flex;
  justify-content: center;
}

.page-loading::before {
  content:" ";
  display:block;
  position:fixed;
  z-index:10;
  height:4px;
  width:100%;
  top:0;
  left:0;
  background-color:#06D;
  animation: page-load infinite ease-out 1.2s;
  box-shadow:0 2px 2px rgba(0,0,0,.2);
}

.gradient {
  background: linear-gradient(to top right, #4fc95f, #033416);
}

.hero {
  width: 100%;
  height: 100vh;
  background-image: url(/img/background.png);
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
}

.logo {
  width: 100px;
  cursor: pointer;
}

.navbar {
  width: 85%;
  height: 15%;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

button {
  color: #fbfcfd;
  padding: 10px 25px;
  background: transparent;
  border: 1px solid #fff;
  border-radius: 20px;
  outline: none;
  cursor: pointer;
}

button:hover {
  background: #fff;
  color: #000;
}

.content {
  color: #fbfcfd;
  position: absolute;
  top: 50%;
  left: 8%;
  transform: translateY(-50%);
  z-index: 2;
}
.login-form {
  color: #fbfcfd;
  position: absolute;
  top: 56.5%;
  left: 70%;
  transform: translateY(-50%);
  z-index: 2;
}
.button-form{ 
  margin: 20px 0 30px;

}

h1 {
  font-size: 80px;
  margin: 10px 0 30px;
  line-height: 80px;
}
.side-bar {
  width:50px;
  height:100vh;
  background: linear-gradient(#00545d, #000729);
  position: absolute;
  right: 0;
  top: 0;
}
.menu {
  display: block;
  width: 25px;
  margin: 40px auto 0;
  cursor: pointer;
}
.social-links img, .useful-links img{
  width: 35px;
  margin: 5px auto;
  cursor: pointer;
}
.social-links {
  width: 50px;
  text-align: center;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
}
.useful-links {
  width: 50px;
  text-align: center;
  position: absolute;
  bottom: 30px;
}
.bubbles img{
  width: 50px;
  animation: bubble 7s linear infinite;
}
.bubbles {
  width: 100%;
  display:flex;
  align-items: center;
  justify-content: space-around;
  position: absolute;
  bottom: -70px;
}

@keyframes bubble {
  0%{
    transform: translateY(0);
    opacity: 0;
  }
  50%{
    opacity: 1;
  }
  70%{
    opacity: 1;
  }
  100%{
    transform: translateY(-80vh);
    opacity: 0;
  }
}

.bubbles img:nth-child(1){
  animation-delay: 2s;
  width: 25px;
}
.bubbles img:nth-child(2){
  animation-delay: 1s;
}
.bubbles img:nth-child(3){
  animation-delay: 3s;
  width: 25px;
}
.bubbles img:nth-child(4){
  animation-delay: 4.5s;
}
.bubbles img:nth-child(5){
  animation-delay: 3s;
}
.bubbles img:nth-child(6){
  width: 20px;
  animation-delay: 6s;
}
.bubbles img:nth-child(7){
  animation-delay: 7s;
  width: 35px;
}