body{
    font-family: Inter, Arial, sans-serif;
    margin:0;
    background:#f7f7f5;
    color:#111111;
    }
    
    /* 헤더 */
    
    header{
    background:#0f172a;
    color:white;
    padding:40px 30px;
    }
    
    header h1{
    margin:0;
    font-size:36px;
    font-weight:700;
    }
    
    header p{
    margin-top:12px;
    opacity:0.8;
    }
    
    /* 메인 레이아웃 */
    
    .container{
    display:grid;
    grid-template-columns:280px 1fr;
    min-height:100vh;
    }
    
    /* 좌측 메뉴 */
    
    .sidebar{
    background:white;
    border-right:1px solid #e5e7eb;
    padding:25px;
    }
    
    .sidebar h3{
    margin-top:0;
    margin-bottom:20px;
    }
    
    .sidebar button{
    width:100%;
    padding:14px;
    margin-bottom:10px;
    
    background:#ffffff;
    border:1px solid #e5e7eb;
    
    border-radius:12px;
    
    cursor:pointer;
    
    font-size:15px;
    font-weight:600;
    
    transition:0.2s;
    }
    
    .sidebar button:hover
    
    /* 우측 컨텐츠 */
    
    .content{
    padding:35px;
    }
    
    /* PDF 버튼 */
    
    .pdf-btn{
    display:inline-block;
    
    background:#7c3aed;
    color:white;
    
    text-decoration:none;
    
    padding:12px 18px;
    
    border-radius:8px;
    
    margin-right:10px;
    
    font-size:14px;
    font-weight:600;
    }
    
    /* 과목 버튼 */
    
    .course-btn{
    background:white;
    
    border:1px solid #e5e7eb;
    
    border-radius:12px;
    
    padding:12px 16px;
    
    margin:6px;
    
    cursor:pointer;
    
    font-weight:500;
    }
    
    /* 상세 카드 */
    
    #detailBox{
    margin-top:30px;
    
    background:white;
    
    border:1px solid #e5e7eb;
    
    border-radius:16px;
    
    padding:30px;
    
    box-shadow:
    0 4px 12px rgba(0,0,0,0.05);
    }
    
    /* 과목 헤더 */
    
    .course-header{
    display:flex;
    align-items:center;
    gap:12px;
    margin-bottom:20px;
    }
    
    .badge{
    background:#7c3aed;
    color:white;
    
    padding:6px 12px;
    
    border-radius:999px;
    
    font-size:13px;
    font-weight:600;
    }
    
    .course-desc{
    line-height:1.7;
    color:#4b5563;
    }
    
    /* 상태 카드 */
    
    .status-grid{
    display:grid;
    
    grid-template-columns:
    repeat(4,1fr);
    
    gap:12px;
    
    margin-top:25px;
    margin-bottom:30px;
    }
    
    .status-item{
    background:#f9fafb;
    
    border-radius:12px;
    
    padding:18px;
    
    text-align:center;
    }
    
    /* 리스트 */
    
    ul{
    line-height:1.8;
    }
    
    li{
    margin-bottom:4px;
    }
    
    /* 모바일 */
    
    @media(max-width:768px){
    
    .container{
    
    ```
    grid-template-columns:1fr;
    ```
    
    }
    
    .status-grid{
    
    ```
    grid-template-columns:
    repeat(2,1fr);
    ```
    
    }
    
    }