/* =======================================
   Estrutura Principal
   ======================================= */
.login-page {
  display: flex;
  height: 100vh;
  width: 100%;
}

/* =======================================
   Lado Esquerdo - Institucional
   ======================================= */
.login-left {
  flex: 1;
  background: var(--gradient-primary);
  color: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
}

.login-left-content {
  max-width: 420px;
  text-align: left;
}

.login-logo {
  width: 300px;
  margin-bottom: var(--spacing-lg);
}

.login-title {
  font-family: var(--font-title);
  font-size: var(--font-size-title-lg);
  line-height: 1.1;
  margin-bottom: var(--spacing-md);
  letter-spacing: 1px;
}

.login-description {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.4;
}

/* =======================================
   Lado Direito - Formulário
   ======================================= */
.login-right {
  flex: 1;
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
  box-shadow: -2px 0 8px rgba(0, 0, 0, 0.05);
}

.login-form {
  width: 100%;
  max-width: 360px;
  display: flex;
  flex-direction: column;
}

.form-title {
  font-family: var(--font-title);
  font-size: var(--font-size-title-md);
  color: var(--color-primary-dark);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  font-size: var(--font-size-small);
  color: var(--color-muted);
  margin-bottom: var(--spacing-xs);
}

.form-group input {
  width: 100%;
  padding: 10px 12px;
  font-size: var(--font-size-body);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color 0.2s ease-in-out;
}

.form-group input:focus {
  border-color: var(--color-primary);
}

/* =======================================
   Botão
   ======================================= */
.login-button {
  background: var(--color-primary);
  color: var(--color-bg);
  font-weight: bold;
  font-size: 1rem;
  padding: 12px;
  border-radius: var(--radius-md);
  margin-top: var(--spacing-sm);
  box-shadow: var(--shadow-soft);
}

.login-button:hover {
  background: var(--color-primary-dark);
}

/* =======================================
   Mensagem de Erro
   ======================================= */
.error-message {
  color: #d9534f;
  font-size: var(--font-size-small);
  text-align: center;
  margin-top: var(--spacing-sm);
}

/* =======================================
   Spinner de carregamento no botão
   ======================================= */
.spinner {
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top: 2px solid #fff;
  border-radius: 50%;
  width: 16px;
  height: 16px;
  margin-left: 10px;
  vertical-align: middle;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Estado de carregamento */
.login-button.loading {
  opacity: 0.8;
  cursor: not-allowed;
}

/* =======================================
   Responsividade aprimorada (mobile)
   ======================================= */
@media (max-width: 900px) {
  .login-page {
    flex-direction: column;
    height: auto;
  }

  /* Esconde o texto e reduz a altura da área institucional */
  .login-left {
    flex: none;
    height: 140px;
    padding: var(--spacing-md);
    justify-content: center;
    align-items: center;
    text-align: center;
  }

  .login-left-content {
    max-width: 100%;
  }

  .login-left-content .login-title,
  .login-left-content .login-description {
    display: none; /* Oculta título e descrição */
  }

  /* Reduz o logo e centraliza */
  .login-logo {
    width: 180px;
    margin: 0;
  }

  /* Remove sombra e centraliza formulário */
  .login-right {
    flex: 1;
    padding: var(--spacing-lg);
    box-shadow: none;
    justify-content: flex-start;
  }

  .login-form {
    max-width: 320px;
    margin: var(--spacing-lg) auto;
  }

  .form-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
  }
}