/* Reset e Tipografia */
* { box-sizing: border-box; margin: 0; padding: 0; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; }

/* Fundo Escuro Moderno */
body { background-color: #121212; display: flex; justify-content: center; align-items: center; height: 100vh; }

/* Caixa de Login SaaS */
.login-box { 
    background-color: #1e1e1e; 
    padding: 40px 30px; 
    border-radius: 12px; 
    width: 100%; 
    max-width: 360px; 
    text-align: center; 
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    border: 1px solid #333;
}

/* Título Dinâmico da Empresa */
.logo-title { font-size: 20px; font-weight: 800; margin-bottom: 5px; color: #fff; letter-spacing: 1px; text-transform: uppercase; }
.logo-subtitle { font-size: 13px; color: #f05a28; margin-bottom: 25px; font-weight: 600; }

/* Campos de Input */
.input-group { position: relative; margin-bottom: 20px; text-align: left; }
.input-group label { display: block; font-size: 13px; color: #aaa; margin-bottom: 8px; font-weight: 500;}
.input-group input { 
    width: 100%; padding: 14px; background-color: #2a2a2a; border: 1px solid #444; 
    border-radius: 8px; font-size: 15px; color: #fff; outline: none; transition: 0.3s; 
}
.input-group input:focus { border-color: #f05a28; box-shadow: 0 0 8px rgba(240, 90, 40, 0.2); }

/* Ícone do Olho */
.toggle-password { position: absolute; right: 14px; top: 38px; cursor: pointer; color: #888; }
.toggle-password:hover { color: #f05a28; }

/* Botão de Acesso */
.btn-login { 
    width: 100%; padding: 15px; background-color: #f05a28; color: white; 
    border: none; border-radius: 8px; font-size: 16px; font-weight: bold; 
    cursor: pointer; transition: 0.3s; margin-top: 10px; 
}
.btn-login:hover { background-color: #d0481e; }
.btn-login:disabled { background-color: #555; cursor: not-allowed; }

/* Mensagem de Erro */
#mensagemErro { color: #ff4444; font-size: 13px; margin-top: 15px; display: none; font-weight: 500; }

.footer-text { margin-top: 25px; font-size: 12px; color: #666; }

/* Responsividade */
@media (max-width: 480px) {
    .login-box { width: 90%; padding: 30px 20px; }
}

/* Lógica das Telas (SPA) */
.tela { display: none; flex-direction: column; animation: fadeIn 0.3s ease; }
.tela.ativa { display: flex; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }