body {
  background-color: #212529;
  color: #f8f9fa;
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

#registration-form {
  background-color: #343a40;
  color: #f8f9fa;
  max-width: 400px;
  width: 100%;
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  gap: 20px;
  text-align: center;
  border: 1px solid #495057;
}

#registration-form input[type="text"],
#registration-form input[type="password"] {
  width: 100%;
  padding: 12px;
  border: 1px solid #495057;
  border-radius: 5px;
  background-color: #212529;
  color: #f8f9fa;
  font-size: 16px;
  box-sizing: border-box;
}

#registration-form input[type="text"]::placeholder,
#registration-form input[type="password"]::placeholder {
  color: #6c757d;
}

#registration-form input[type="text"]:focus,
#registration-form input[type="password"]:focus {
  outline: none;
  border-color: #6f42c1;
  box-shadow: 0 0 6px rgba(111, 66, 193, 0.5);
}

.reg-button,
.auth-button {
  padding: 10px;
  background-color: #6f42c1;
  color: #ffffff;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-size: 17px;
  font-weight: bold;
  transition: background-color 0.3s ease, transform 0.2s ease;
  text-align: center;
  text-decoration: none;
  display: block;
  width: 100%;
  box-sizing: border-box;
}

.auth-button:hover,
.auth-button:hover {
  background-color: #8e44ad;
  transform: scale(1.05);
}

.auth-button {
  margin-top: -5px;
}