body {
  background-color: #fdf6f0;
  font-family: system-ui, Arial, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  margin: 0;
  padding: 20px;
}

.register-container {
  background-color: white;
  padding: 40px 50px;
  border-radius: 20px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  width: 400px;
  max-width: 100%;
}

h2 {
  text-align: center;
  font-size: 2.2em;
  margin-bottom: 10px;
  color: #444;
}

.subtitle {
  text-align: center;
  color: #666;
  font-size: 0.9em;
  margin-bottom: 30px;
}

.form-group {
  margin-bottom: 25px;
}

label {
  display: block;
  margin-bottom: 8px;
  font-size: 1.2em;
  color: #444;
  font-weight: bold;
}

input[type="text"],
input[type="password"],
input[type="email"] {
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  border: 2px solid #e0e0e0;
  font-size: 1em;
  transition: border-color 0.3s ease;
  box-sizing: border-box;
}

input:focus {
  outline: none;
  border-color: #ffc4b2;
}

.help-text {
  font-size: 0.85em;
  color: #888;
  margin-top: 5px;
}

.password-requirements {
  margin-top: 10px;
  padding: 10px;
  background-color: #f8f8f8;
  border-radius: 6px;
}

.requirement {
  font-size: 0.85em;
  margin-bottom: 5px;
  color: #666;
  transition: color 0.3s ease;
}

.requirement.valid {
  color: #4CAF50;
}

.requirement.invalid {
  color: #f44336;
}

.password-match {
  font-size: 0.85em;
  margin-top: 5px;
  transition: color 0.3s ease;
}

.password-match.valid {
  color: #4CAF50;
}

.password-match.invalid {
  color: #f44336;
}

.submit-btn {
  width: 100%;
  padding: 15px;
  margin-top: 20px;
  background-color: #e0e0e0;
  border: none;
  border-radius: 8px;
  font-size: 1.1em;
  font-weight: bold;
  color: #999;
  cursor: not-allowed;
  transition: all 0.3s ease;
}

.submit-btn.active {
  background-color: #c34f2f;
  color: white;
  cursor: pointer;
}

.submit-btn.active:hover {
  background-color: #aa3f24;
}

.login-link {
  text-align: center;
  margin-top: 20px;
  font-size: 0.9em;
  color: #666;
}

.login-link a {
  color: #ffc4b2;
  text-decoration: none;
  font-weight: bold;
}

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

/* 반응형 디자인 */
@media (max-width: 480px) {
  .register-container {
    padding: 30px 20px;
    width: 100%;
  }
  
  h2 {
    font-size: 1.8em;
  }
  
  .subtitle {
    font-size: 1em;
  }
}