.register-form {
  max-width: 340px;
  margin: 46px auto 20px;
  background: #20253a;
  border-radius: 15px;
  padding: 26px 30px 28px 30px;
  box-shadow: 0 3px 18px #00143044;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.form-title {
  text-align: center;
  color: #eff3fa;
  margin-bottom: 10px;
}
.register-form label {
  font-size: 15px;
  color: #b2bdd6;
  margin-bottom: 5px;
  display: block;
  font-weight: 500;
}
.register-form input[type="text"],
.register-form input[type="email"],
.register-form input[type="password"] {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #3466dc22;
  border-radius: 7px;
  font-size: 16px;
  background: #232b48;
  color: #eaf0f7;
  margin-bottom: 6px;
  box-sizing: border-box;
  transition: border-color 0.18s;
}
.register-form input:focus {
  border-color: #4f89ff;
  outline: none;
}
.register-form button[type="submit"] {
  background: linear-gradient(92deg, #5c7cff 55%, #35adef 100%);
  color: #fff;
  font-size: 17px;
  font-weight: 600;
  border-radius: 8px;
  border: none;
  padding: 13px 0;
  margin-top: 14px;
  box-shadow: 0 3px 12px #143eaa33;
  transition: background 0.18s;
  cursor: pointer;
}
.register-form button[type="submit"]:hover {
  background: linear-gradient(92deg, #3950b5 60%, #2288c2 100%);
}
.alert.alert-danger {
  background: #ff344c;
  color: #fff;
  border-radius: 7px;
  padding: 12px;
  margin: 12px auto 0;
  text-align: center;
  max-width: 340px;
}