.box-alerta {
  display: block;
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 30%;
  max-width: 350px;
  border-radius: 12px;
  z-index: 9999;
  padding: 15px;
  box-shadow:
    0 10px 15px -3px rgba(0, 0, 0, 0.07),
    0 4px 6px -2px rgba(0, 0, 0, 0.05);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition:
    all 0.3s ease,
    opacity 0.5s;
  opacity: 1;
  font-family: Arial, sans-serif;
}

/* Títulos e X */
.box-alerta .alerta-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.box-alerta .alerta-header p {
  margin: 0;
  font-weight: bold;
  font-size: 16px;
}

.box-alerta .fechar-alerta {
  cursor: pointer;
  font-size: 20px;
  line-height: 1;
  padding-left: 10px;
  color: inherit;
}

/* Mensagem */
.box-alerta .alerta-msg {
  font-size: 14px;
}

/* ======= cores por tipo ======= */
.box-alerta-success {
  background: rgba(40, 167, 69, 0.08);
  border: 1px solid rgba(40, 167, 69, 0.2);
  color: #1e7e34;
}

.box-alerta-success .alerta-header p {
  color: #1e7e34;
}

.box-alerta-warning {
  background: rgba(255, 193, 7, 0.08);
  border: 1px solid rgba(255, 193, 7, 0.2);
  color: #d39e00;
}

.box-alerta-warning .alerta-header p {
  color: #d39e00;
}

.box-alerta-danger {
  background: rgba(238, 68, 68, 0.08);
  border: 1px solid rgba(238, 68, 68, 0.2);
  color: #ee4444;
}

.box-alerta-danger .alerta-header p {
  color: #ee4444;
}

.box-alerta-info {
  background: rgba(0, 123, 255, 0.08);
  border: 1px solid rgba(0, 123, 255, 0.2);
  color: #0056b3;
}

.box-alerta-info .alerta-header p {
  color: #0056b3;
}

/* ====== Hover no X ====== */
.box-alerta .fechar-alerta:hover {
  color: #000;
}

/* ===== Responsividade ===== */
@media (max-width: 768px) {
  .box-alerta {
    width: 90%;
    left: 5%;
    right: 5%;
  }
}