body{
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  font-family: sans-serif;
}

.background {
  position: fixed;
  width: 100%;
  height: 100vh;
  top:0;
  left:0;
  background-image: linear-gradient(to left, rgba(67,67,67,.7), rgba(0,0,0,.7)), url(slike/pozadina.jpg);
  background-size: cover;
  background-position: top;
  z-index: -1000;
}

nav {
  margin: 0;
  padding: 5px 25px;
  height: 60px;
  background: linear-gradient(to top, rgba(18,18,18,.8), rgba(0,0,0,.8));
}
.logo {
  color: white;
  font-size: 60px;
  letter-spacing: -10px;
}

.logo span {
  display: inline-block;
  transform: skewX(21deg);
}

label {
  font-size: 14px;
  display: block;
  color: #999;
}

#naslov {
  text-transform: capitalize;
}

.wrapper {
  width: 80%;
  padding: 100px 10%;
  margin: 0 auto;
  text-align: center;
}

.izvodjac-container {
  display: inline-block;
  margin: 0 auto;
  width: 40%;
}

.pesma-container {
  display: inline-block;
  margin: 0 auto;
  width: 40%;
}

.button-container {
  margin-top: 31px;
  text-align: center;
}

#potrazi,
#potrazi:focus,
#potrazi:active {
  padding: 5px 10px;
  background: linear-gradient(to left, #202020, #000000);
  color: #777;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 3px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 3px;
  transition: all .3s;
}

#potrazi:hover {
  background: #777;
  color: #303030;
  transform: scaleX(1.1);
}

input, input:focus {
  outline: none;
  border: none;
  padding: 3px 20%;
  margin: 5px;
  color:#999;
  font-size: 14px;
  background-color: transparent;
  border-bottom: 1px solid #777;
  text-align: center;
}

input::placeholder {
  text-align: center;
  opacity: 1;
}

.pesma-container label {
  opacity: 0;
}

.pesma-container input:focus + label {
  animation: labelAnim .2s ease-in;
  opacity: 1;
}
.pesma-container input:focus::placeholder {
  opacity: 0;
}

.izvodjac-container label {
  opacity: 0;
}

.izvodjac-container input:focus + label {
  animation: labelAnim .2s ease-in;
  opacity: 1;
}
.izvodjac-container input:focus::placeholder {
  opacity: 0;
}


#naslov,
#rezultat {
  color: #ccc;
}

@keyframes labelAnim {
  0%{
    opacity: 0;
    transform: translateY(-30px);
  }
  100%{
    opacity: 1;
    transform: translateY(0px);
  }
}