/* RESET */
body{
  margin:0;
  height:100vh;
  overflow:hidden;
  font-family:Arial, sans-serif;
  display:flex;
  align-items:center;
  justify-content:center;
}

/* FONS DEL MON */
.world{
  position:fixed;
  width:200%;
  height:100%;
  background-image:url("../images/world.webp");
  background-repeat:repeat-x;
  background-size:cover;
  animation:pan 60s linear infinite;
  opacity:0.2;
}

/* moviment del mapa */
@keyframes pan{
  from{background-position:0 0;}
  to{background-position:-2000px 0;}
}

/* CONTINGUT */
.center{
  position:relative;
  text-align:center;
  z-index:2;
}

/* LOGO */
.logo{
  width:clamp(6rem, 18vw, 16rem);
  animation:flameFloat 4s ease-in-out infinite,
            flameGlow 3s ease-in-out infinite;
}

/* animació flotant suau */
@keyframes flameFloat{
  0%{transform:translateY(0px) scale(1);}
  50%{transform:translateY(-8px) scale(1.03);}
  100%{transform:translateY(0px) scale(1);}
}

/* animació brillantor */
@keyframes flameGlow{
  0%{
    filter: drop-shadow(0 0 10px rgba(255,120,60,0.5))
            drop-shadow(0 0 20px rgba(255,120,60,0.4));
  }
  50%{
    filter: drop-shadow(0 0 20px rgba(255,120,60,0.9))
            drop-shadow(0 0 40px rgba(255,120,60,0.7));
  }
  100%{
    filter: drop-shadow(0 0 10px rgba(255,120,60,0.5))
            drop-shadow(0 0 20px rgba(255,120,60,0.4));
  }
}

/* per defecte */
.lang-mobile{
  display: none;
}

/* desktop */
.lang-desktop{
  display: flex;
  gap: 8px;
}

/* mòbil */
@media (max-width: 600px){

  .lang-desktop{
    display: none;
  }
  .center {
    left: -10px !important;
  }
  .nav-right{
      right: 150px;
  }
  .lang-mobile{
    display: block;
    position: fixed;
    top: 12px;
    left: 12px;

    padding: 6px 10px;
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,0.3);
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(6px);

    color: #e74c3c;
    font-size: 12px;
    z-index: 10;
  }
}
/* TÍTOL */
.title{
  margin-top:clamp(0.5rem,2vw,1.2rem);
  font-size:clamp(1.8rem,5vw,3rem);
  letter-spacing:clamp(0.1rem,0.5vw,0.3rem);
  color:#e74c3c;
  font-weight:bold;
}

/* SUBTÍTOL */
.subtitle{
  color:#e74c3c;
  font-size:clamp(1rem,2.5vw,1.5rem);
  margin-top:0.5rem;
}
/* NAV ESQUERRA (IDIOMES) */
.nav-left{
  position: fixed;
  top: 15px;
  left: 15px;
  display: flex;
  gap: 8px;
  z-index: 10;
}

/* NAV DRETA (LOGIN) */
.nav-right{
  position: fixed;
  top: 15px;
  right: 15px;
  display: flex;
  gap: 10px;
  z-index: 10;
}

/* BOTONS IDIOMA */
.lang-btn{
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.3);
  font-size: 12px;
  color: #e74c3c;
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(6px);
  text-decoration: none;
}

/* ACTIU */
.lang-btn.active{
  background: #e74c3c;
  color: white;
  border-color: #e74c3c;
}

/* BOTONS LOGIN */
.auth-btn{
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 12px;
  color: #e74c3c;
  border: 1px solid rgba(231,76,60,0.3);
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(6px);
  text-decoration: none;
}

/* HOVER SUAU */
.lang-btn:hover,
.auth-btn:hover{
  transform: translateY(-1px);
  transition: 0.2s ease;
}