/* ===== Fonte Mundial Narrow ===== */
@font-face {
  font-family: 'Mundial Narrow';
  src: url('fonts/MundialNarrow-Thin.otf') format('opentype');
  font-weight: normal;
  font-style: normal;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body, html {
  height: 100%;
  width: 100%;
  font-family: 'Mundial Narrow', sans-serif;
  color: white;
  overflow: hidden;
}

/* ============================================
   SLIDESHOW (fundo)
   ============================================ */
#slideshow {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: -1;
}

#slideshow img {
  position: absolute;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 4.5s ease-in-out;
}

#slideshow img.active {
  opacity: 1;
}

/* ============================================
   LOGOTIPO + TEXTO
   ============================================ */
.overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

.logo {
  width: 100%;                /* ocupa metade da largura em desktop */
  max-width: 1000px;          /* limite sensato para ecrãs muito grandes */
  min-width: 350px;          /* não fica demasiado pequeno */
  height: auto;
  filter: drop-shadow(0 0 20px rgba(255,255,255,0.25));
}

.construction-text {
  font-size: 2rem;
  letter-spacing: 0.12em;
  margin-top: 2.2rem;
  text-transform: lowercase;
  color: white;
}

/* ============================================
   ÍCONES SOCIAIS
   ============================================ */
footer {
  position: absolute;
  bottom: 25px;
  width: 100%;
  text-align: center;
}

.social-icons {
  display: flex;
  justify-content: center;
  gap: 28px;
}

.icon {
  color: white;
  opacity: 0.85;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.icon:hover {
  opacity: 1;
  transform: scale(1.15);
}

/* ============================================
   RESPONSIVIDADE (MOBILE / TABLET)
   ============================================ */
@media (max-width: 768px) {

  .logo {
    width: 70%;              /* maior no mobile */
    max-width: 420px;
  }

  .construction-text {
    font-size: 1.4rem;
    margin-top: 1rem;
  }

  .social-icons svg {
    width: 24px;
    height: 24px;
  }

  footer {
    bottom: 18px;
  }
}

@media (max-width: 480px) {

  .logo {
    width: 80%;
  }

  .construction-text {
    font-size: 1.2rem;
  }

  .social-icons {
    gap: 20px;
  }
}