/* ===== Reset básico ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  font-family: 'Segoe UI', sans-serif;
  background: #B0E0E6;
  color: white;
  line-height: 1.75em;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding-top: 110px;
}

/* ===== Cabeçalho fixo ===== */
#top-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(6px);
  z-index: 1000;
  padding: 10px 20px;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

.small-logo {
  height: 70px;
  width: auto;
}

/* ===== Botão hamburger ===== */
#menu-toggle {
  display: none;
  font-size: 28px;
  cursor: pointer;
  color: white;
  background: none;
  border: none;
}

/* ===== Menu principal ===== */
.main-nav {
  flex: 1;
}

.menu {
  display: flex;
  justify-content: flex-end;
  gap: 30px;
  list-style: none;
  flex-wrap: wrap;
}

.menu-item {
  position: relative;
  max-width: 200px;
}

.menu-item > a {
  color: white;
  font-weight: 600;
  text-decoration: none;
  padding: 10px;
  display: block;
  transition: 0.3s;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.menu-item > a:hover {
  opacity: 0.7;
}


/* ===== Submenu ===== */
.submenu {
  display: none;
  position: absolute;
  background: rgba(0, 0, 0, 0.8);
  border-radius: 6px;
  flex-direction: column;   /* mantém em coluna */
  min-width: 220px;         /* largura mínima para caber frases maiores */
  z-index: 999;
}

.menu-item:hover .submenu {
  display: flex;
}

.submenu li {
  width: 100%;              /* cada item ocupa a linha inteira */
}

.submenu li a {
  display: block;           /* força ocupar toda a largura */
  padding: 10px 15px;
  color: white;
  text-decoration: none;
  font-size: 15px;
  white-space: nowrap;      /* impede quebra de linha dentro da frase */
  overflow: hidden;
  text-overflow: ellipsis;  /* se for demasiado longo, mostra "..." */
}

.submenu li a:hover {
  background: rgba(255, 255, 255, 0.1);
}



/* ===== Modais ===== */
.modal {
  position: fixed;
  inset: 0;
  display: none;
  justify-content: center;
  align-items: center;
  backdrop-filter: blur(12px);
  background: rgba(0, 0, 0, 0.5);
  z-index: 5000;
  padding: 20px;
}

.modal .conteudo {
  background: rgba(255, 255, 255, 0.95);
  padding: 40px;
  max-width: 600px;
  width: 90%;
  border-radius: 12px;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.3);
  text-align: center;
  color: #003366;
}

.modal .conteudo h2 {
  font-size: 2em;
  margin-bottom: 25px;
  color: #003366;
}

.modal .conteudo h3 {
  font-size: 1.5em;
  margin-top: 20px;
  margin-bottom: 10px;
  color: #005599;
}

.modal .conteudo p {
  font-size: 1.05em;
  line-height: 1.6;
  margin-bottom: 20px;
  color: #333;
}

.texto-justificado {
  text-align: justify;
  text-justify: inter-word;
}

.modal .conteudo button {
  display: block;
  margin: 30px auto 0 auto;
  padding: 12px 30px;
  font-size: 1em;
  background: #003366;
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.3s;
}

.modal .conteudo button:hover {
  background: #005599;
}

/* ===== Conteúdo principal ===== */
main {
  flex: 1;
}

.hero {
  text-align: center;
  margin-top: 60px;
}

.central-logo {
  max-width: 40%;
  margin: 0 auto 20px auto;
  display: block;
}

.empresa {
  font-size: 1.2em;
  margin-top: 10px;
  color: #000000;
}

/* ===== Rodapé ===== */
.footer-contacto {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  text-align: center;
  background: rgba(0, 0, 0, 0.6);
  padding: 12px 10px;
  font-size: 0.85em;
  color: white;
  line-height: 1.4em;
  white-space: nowrap;   /* impede quebra de linha */
  overflow-x: auto;      /* se for demasiado longo, cria scroll horizontal */
  z-index: 2000;         /* garante que fica acima do conteúdo */
}

/* ===== Responsividade ===== */
@media (max-width: 768px) {
  .header-container {
    flex-direction: row;
    justify-content: space-between;
  }

  #menu-toggle {
    display: block;
  }

  .menu {
    display: none;
    flex-direction: column;
    align-items: center;
    background: rgba(0, 0, 0, 0.9);
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    padding: 15px 0;
  }

  .menu.open {
    display: flex;
  }

  .menu-item {
    width: 100%;
    text-align: center;
  }

  .menu-item > a {
    font-size: 18px;
    padding: 12px;
    white-space: normal;
  }

  .submenu {
    position: static;
    background: rgba(0,0,0,0.9);
    margin-top: 6px;
    box-shadow: none;
  }

  .submenu li a {
    font-size: 16px;
    padding: 10px;
  }

  .central-logo {
    max-width: 70%;
    margin-top: 20px;
  }

  .modal .conteudo {
    max-height: 80vh;
    padding: 20px;
    font-size: 0.95em;
  }

  .footer-contacto {
    font-size: 0.9em;
    padding: 12px;
    line-height: 1.4em;
  }
}