* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #f1f3f5;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
}

.register-box {
  background: white;
  padding: 32px 28px;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  width: 100%;
  max-width: 420px;
}

.register-box h2 {
  margin: 0 0 24px;
  font-size: 1.5em;
  text-align: center;
  color: #343a40;
}

.register-box label {
  display: block;
  margin-bottom: 6px;
  font-weight: bold;
  color: #495057;
}

.register-box input[type="text"],
.register-box input[type="email"],
.register-box input[type="password"] {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #ced4da;
  border-radius: 6px;
  margin-bottom: 16px;
  font-size: 1em;
}

.register-box input[type="submit"],
.register-box button {
  width: 100%;
  padding: 10px 12px;
  background-color: #28a745;
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 1em;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.register-box input[type="submit"]:hover {
  background-color: #218838;
}

.register-box .error {
  color: #dc3545;
  margin-bottom: 12px;
  text-align: center;
  display: none;
}

.register-box .login-link {
  text-align: center;
  margin-top: 16px;
  font-size: 0.95em;
}

.register-box .login-link a {
  color: #007bff;
  text-decoration: none;
}

.register-box .login-link a:hover {
  text-decoration: underline;
}