/* 기본 초기화 */
body {
    margin: 0;
    font-family: 'Pretendard', 'Apple SD Gothic Neo', sans-serif;
    background-color: #f9fafb;
    color: #111827;
  }
  
  a {
    text-decoration: none;
    color: #2563eb;
  }
  
  a:hover {
    text-decoration: underline;
  }
  
  /* 헤더 */
  header {
    background-color: #1e3a8a;
    color: white;
    padding: 1rem;
  }
  
  header a {
    color: white;
    margin-right: 1rem;
  }
  
  /* 메인 콘텐츠 */
  main {
    max-width: 1000px;
    margin: 2rem auto;
    padding: 1rem;
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    border-radius: 8px;
  }
  
  /* 테이블 */
  table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
  }
  
  thead {
    background-color: #f3f4f6;
  }
  
  th, td {
    padding: 0.75rem;
    border: 1px solid #e5e7eb;
    text-align: center;
  }
  
  tbody tr:hover {
    background-color: #f9fafb;
  }
  
  /* 버튼 */
  .btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: #2563eb;
    color: white;
    border-radius: 5px;
    text-align: center;
    transition: background-color 0.2s;
  }
  
  .btn:hover {
    background-color: #1d4ed8;
  }
  
  /* 폼 */
  form input[type="text"],
  form input[type="file"],
  form textarea,
  form select {
    width: 100%;
    padding: 0.6rem;
    margin-top: 0.4rem;
    margin-bottom: 1rem;
    border: 1px solid #d1d5db;
    border-radius: 4px;
    box-sizing: border-box;
  }
  
  form input[type="submit"] {
    background-color: #10b981;
    color: white;
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
  }
  
  form input[type="submit"]:hover {
    background-color: #059669;
  }
  
  /* 기타 유틸 */
  .text-right {
    text-align: right;
  }
  
  .text-center {
    text-align: center;
  }
  
  .mb-2 {
    margin-bottom: 0.5rem;
  }
  
  .mt-2 {
    margin-top: 0.5rem;
  }