/* 반응형 디자인 */

/* 모바일 기기 (< 576px) */
@media (max-width: 575.98px) {
    .navbar-brand {
        font-size: 1.2rem;
    }
    
    .container, .container-fluid {
        padding-left: 10px;
        padding-right: 10px;
    }
    
    .card {
        margin-bottom: 10px;
    }
    
    .btn {
        font-size: 0.9rem;
        padding: 0.5rem 1rem;
    }
    
    .search-container {
        flex-direction: column;
    }
    
    .search-container form {
        flex-direction: column !important;
    }
    
    .form-control, .form-select {
        margin-bottom: 10px;
    }
}

/* 태블릿 기기 (576px - 767px) */
@media (min-width: 576px) and (max-width: 767.98px) {
    .container {
        width: 100%;
    }
    
    .col-md-6 {
        flex: 0 0 50%;
    }
}

/* 데스크톱 (>= 768px) */
@media (min-width: 768px) {
    .sidebar {
        position: sticky;
        top: 20px;
    }
}

/* 다크 모드 지원 (선택사항) */
@media (prefers-color-scheme: dark) {
    body {
        background-color: #1a1a1a;
        color: #e0e0e0;
    }
    
    .card {
        background-color: #2a2a2a;
        border-color: #444;
    }
    
    .form-control, .form-select {
        background-color: #333;
        border-color: #555;
        color: #fff;
    }
    
    .navbar {
        background-color: #222 !important;
    }
}