/* 공통 스타일 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f8f9fa;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

/* 헤더 스타일 */
header {
  background-color: #fff;
  padding: 2rem 0;
  border-bottom: 1px solid #e9ecef;
  margin-bottom: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

h1 {
  text-align: center;
  color: #2c3e50;
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.subtitle {
  text-align: center;
  color: #6c757d;
  font-size: 1.1rem;
}

/* 네비게이션 */
.nav-link {
  display: inline-block;
  margin-bottom: 1rem;
  padding: 0.5rem 1rem;
  background-color: #007bff;
  color: white;
  text-decoration: none;
  border-radius: 4px;
  transition: background-color 0.3s ease;
}

.nav-link:hover {
  background-color: #0056b3;
}

/* 앱 선택기 */
.app-selector {
  background-color: #fff;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  margin-bottom: 2rem;
}

.app-selector h2 {
  margin-bottom: 1rem;
  color: #2c3e50;
}

.app-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}

.app-card {
  border: 2px solid #e9ecef;
  border-radius: 8px;
  padding: 1.5rem;
  transition: all 0.3s ease;
  background-color: #fff;
  text-decoration: none;
  color: inherit;
  display: block;
}

.app-card:hover {
  border-color: #007bff;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  text-decoration: none;
  color: inherit;
}

.app-card h3 {
  margin-bottom: 0.5rem;
  color: #2c3e50;
}

.app-card p {
  color: #6c757d;
  font-size: 0.9rem;
}

/* 개인정보처리방침 콘텐츠 */
.privacy-content {
  background-color: #fff;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  margin-bottom: 2rem;
}

.privacy-content h2 {
  color: #2c3e50;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid #007bff;
}

.privacy-content h3 {
  color: #495057;
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.privacy-content p {
  margin-bottom: 1rem;
  text-align: justify;
}

.privacy-content ul {
  margin-bottom: 1rem;
  padding-left: 2rem;
}

.privacy-content li {
  margin-bottom: 0.5rem;
}

.contact-info {
  background-color: #e3f2fd;
  padding: 1rem;
  border-radius: 6px;
  margin-top: 2rem;
}

/* 푸터 */
.footer {
  text-align: center;
  padding: 2rem 0;
  color: #6c757d;
  font-size: 0.9rem;
}

/* 반응형 디자인 */
@media (max-width: 768px) {
  .container {
    padding: 10px;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  .app-grid {
    grid-template-columns: 1fr;
  }
}