/* Reset e box-sizing */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Body com gradiente */
html, body {
  height: 100%;
  font-family: 'Segoe UI', Tahoma, sans-serif;
  background: #ffffff;
  color: #374151;
}

/* Container central */
.reg-container {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 0;
}

/* Card branco */
.reg-card {
  background: #ffffff;
  border-radius: 1rem;
  box-shadow: 0 0.5rem 1.5rem rgba(0,0,0,0.1);
  width: 100%;
  max-width: 480px;
  padding: 2rem;
}

/* Título */
.reg-card h2 {
  text-align: center;
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
  font-weight: 600;
}

/* Formulário */
.reg-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Grupos de campo */
.reg-group {
  display: flex;
  flex-direction: column;
}
.reg-group label {
  margin-bottom: 0.5rem;
  font-weight: 500;
}
.reg-group input {
  padding: 0.75rem 1rem;
  font-size: 1rem;
  border: 1px solid #e5e7eb;
  border-radius: 0.75rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.reg-group input:focus {
  border-color: #5ce7d0;
  outline: none;
  box-shadow: 0 0 0 3px rgba(153, 212, 226, 0.2);
}

/* Botão */
.btn-reg {
  margin-top: 1rem;
  padding: 0.75rem;
  font-size: 1rem;
  font-weight: 600;
  color: #ffffff;
  background-color: #5ce7ad;
  border: none;
  border-radius: 2rem;
  cursor: pointer;
  transition: background-color 0.3s ease;
}
.btn-reg:hover {
  background-color: #0ce69d;
}

/* Footer do card */
.reg-footer {
  text-align: center;
  margin-top: 1.5rem;
}
.reg-footer a {
  color: #535355;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}
.reg-footer a:hover {
  color: #2f2e30;
}


.flash-message {
  position: fixed;
  top: 1rem;
  left: 50%;
  transform: translateX(-50%);
  background: #4ade80;            /* verde claro */
  color: #065f46;                /* verde escuro */
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  box-shadow: 0 0.25rem 0.75rem rgba(0,0,0,0.1);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  z-index: 1000;
}
.flash-message.show {
  opacity: 1;
  pointer-events: auto;
}