/* Fundo Neon Animado */
body {
  margin: 0;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: linear-gradient(135deg, #0a0a0a, #0f0f0f);
  background-size: 400% 400%;
  animation: neonBackground 15s ease infinite;
  font-family: 'Courier New', monospace;
  color: #00ff88;
}

@keyframes neonBackground {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Container principal */
.login-container {
  background: rgba(30, 30, 30, 0.95);
  border: 2px solid #00ff88;
  border-radius: 15px;
  padding: 50px 40px;
  box-shadow: 0 0 25px #00ff8877, 0 0 50px #00ff8844;
  width: 100%;
  max-width: 400px;
  text-align: center;
  animation: fadeIn 1.2s ease-out forwards;
  opacity: 0;
}

@keyframes fadeIn {
  to { opacity: 1; transform: translateY(0); }
  from { opacity: 0; transform: translateY(-20px); }
}

/* Título principal */
h1 {
  margin: 0 0 20px 0;
  font-size: 32px;
  line-height: 1.2;
}

h1 .sub {
  font-size: 16px;
  color: #00ff8866;
  display: block;
  margin-top: 8px;
}

/* Estilo dos Inputs */
label {
  text-align: left;
  display: block;
  margin: 15px 0 5px;
}

input {
  width: 100%;
  padding: 12px;
  background: #111;
  border: 2px solid #00ff88;
  border-radius: 6px;
  font-size: 16px;
  color: #00ff88;
  margin-bottom: 15px;
  transition: box-shadow 0.3s ease, background 0.3s ease;
}

input:focus {
  outline: none;
  background: #0d0d0d;
  box-shadow: 0 0 12px #00ff88cc;
}

/* Botão */
button {
  width: 100%;
  padding: 14px;
  margin-top: 10px;
  background: #00ff88;
  color: #000;
  font-weight: bold;
  border: none;
  border-radius: 6px;
  font-size: 18px;
  cursor: pointer;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

button:hover {
  background: #00e676;
  box-shadow: 0 0 15px #00ff88aa, 0 0 20px #00ff8866;
}

/* Mensagem de erro */
.erro {
  color: #ff4d4d;
  background: rgba(41, 0, 0, 0.8);
  padding: 12px;
  border: 1px solid #ff4d4d;
  border-radius: 6px;
  margin-bottom: 20px;
  font-size: 14px;
}

/* Formulário */
form {
  width: 100%;
}

form * {
  box-sizing: border-box;
}