@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,400;0,500;0,600;0,700;1,400&display=swap');

*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

:root
{
    --clr: #222327;
}

body{
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: var(--clr);
}

.carte-retour {
  display: inline-block;
  background-color: #2e3a8c;
  color: #a8e0ff;
  padding: 12px 20px;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  text-decoration: none;
  font-weight: bold;
  font-size: 1rem;
  transition: transform 0.2s, box-shadow 0.2s;
  margin: 20px;
  font-family: 'Montserrat', sans-serif;
  width: 225px;
}

.navigation{
    width: 400px;
    height: 70px;
    background: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 10px;
}

.navigation ul{
    display: flex;
    width: 350px;
}

.navigation ul li{
    position: relative;
    list-style: none;
    width: 70px;
    height: 70px;
    z-index: 1;
}

.navigation ul li a{
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    width: 100%;
    text-align: center;
    font-weight: 500;
}

.navigation ul li a .icon{
    position: relative;
    display: block;
    line-height: 75px;
    font-size: 1.5em;
    text-align: center;
    transition: 0.5s;
    color: var(--clr);
}

.navigation ul li.active a .icon{
    transform: translateY(-12px);
}

.navigation ul li a .text{
    position: absolute;
    color: var(--clr);
    font-weight: 400;
    font-size: 0.75em;
    letter-spacing: 0.05em;
    transition: 0.5s;
    opacity: 0;
    transform: translateY(20px);
}

.navigation ul li.active a .text{
    opacity: 1;
    transform: translateY(10px);
}

.indicator{
    position: absolute;
    top: -50%;
    width: 70px;
    height: 70px;
    background: #29fd53;
    border-radius: 50%;
    border: 6px solid var(--clr);
    transition: 0.5s;
}

.indicator::before{
    content: '';
    position: absolute;
    top: 50;
    left: -22px;
    width: 20px;
    height: 20px;
    background: transparent;
    border-top-right-radius: 20px;
    box-shadow: 1px -10px 0 0 var(--clr);
}

.indicator::after{
    content: '';
    position: absolute;
    top: 50;
    right: -22px;
    width: 20px;
    height: 20px;
    background: transparent;
    border-top-left-radius: 20px;
    box-shadow: -1px -10px 0 0 var(--clr);
}

.navigation ul li:nth-child(1).active ~ .indicator{
    transform: translateX(calc(70px * 0));
}

.navigation ul li:nth-child(2).active ~ .indicator{
    transform: translateX(calc(70px * 1));
}

.navigation ul li:nth-child(3).active ~ .indicator{
    transform: translateX(calc(70px * 2));
}

.navigation ul li:nth-child(4).active ~ .indicator{
    transform: translateX(calc(70px * 3));
}

.navigation ul li:nth-child(5).active ~ .indicator{
    transform: translateX(calc(70px * 4));
}

#loading-screen {
  position: fixed;
  inset: 0;
  background: #222f3e;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: all 0.6s ease-in-out;
}

.loading-content {
  text-align: center;
  transform: scale(1);
  opacity: 1;
  transition: all 0.6s ease-in-out;
}

.loading-text {
  font-size: 2rem;
  color: #82ccdd;
  margin-bottom: 20px;
  animation: fadeIn 1s forwards;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600px;
}

.dot.flash {
  animation: blink 1s infinite;
}

.dot.flash:nth-of-type(2) { animation-delay: 0.2s; }
.dot.flash:nth-of-type(3) { animation-delay: 0.6s; }

.spinner {
  width: 50px;
  height: 50px;
  border: 6px solid #333;
  border-top: 6px solid #82ccdd;
  border-radius: 50%;
  margin: 0 auto;
  animation: spin 1s linear infinite;
}

@keyframes fadeIn {
  to { opacity: 1; }
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

#main-content {
  display: none;
  padding: 2rem;
  background: white;
}