* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Courier New', monospace;
            font-size: 14px;
            background: #fff;
            padding: 20px;
            overflow: hidden;
            height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }
        
        /* 배경 로고 */
        .background-logo {
            position: fixed;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 80vw;
            max-width: 1000px;
            height: 80vh;
            z-index: 0;
            pointer-events: none;
            opacity: 0.08;
        }
        
        .background-logo img {
            width: 100%;
            height: 100%;
            object-fit: contain;
        }
        
        main {
            border: 0.1px solid #000000;
            padding: 20px;
            max-width: 800px;
            width: 100%;
            transform-style: preserve-3d;
            transition: transform 0.1s ease-out;
            position: relative;
            z-index: 1;
            background: transparent;
        }
        
        header {
            border-bottom: 0.1px solid #000000;
            padding-bottom: 15px;
            margin-bottom: 30px;
            transform: translateZ(120px);
        }
        
        h1 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        h1 a {
            text-decoration: none;
            color: #000;
        }
        
        nav {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
        }
        
        nav a {
            color: #000;
            text-decoration: none;
            border-bottom: 0.1px solid #000;
        }
        
        nav a:hover {
            background:  #caff4dd9;
            color: #282828 !important; 
        }
        
        h1 a:hover {
            background-color:  #caff4de3;
            color: #323232 !important; 
        }
       
        h1 a:visited {
            color: rgb(0, 0, 0);
        }
        
        .workshop-list {
            transform: translateZ(150px);
            max-height: 400px;
            overflow-y: scroll;
            border: 0.1px solid #000;
            padding: 10px;
            margin-bottom: 20px;
        }
        
        .workshop-list::-webkit-scrollbar {
            width: 8px;
        }
        
        .workshop-list::-webkit-scrollbar-track {
            background: transparent;
            border-left: 0.1px solid #000;
        }
        
        .workshop-list::-webkit-scrollbar-thumb {
            background: #000;
            border-radius: 0;
        }
        
        .workshop-list::-webkit-scrollbar-thumb:hover {
            background: #333;
        }
        
        .workshop-list {
            scrollbar-width: thin;
            scrollbar-color: #000 transparent;
        }
        
        .workshop-item {
            border-bottom: 0.1px solid #000;
            padding: 12px 0;
            display: flex;
            justify-content: space-between;
            align-items: baseline;
            transition: all 0.2s;
            cursor: pointer;
            position: relative;
            text-decoration: none;
            color: #000;
        }
        
        .workshop-item:hover {
            padding-left: 10px;
            background:  #caff4d55;
        }
        
        .workshop-item:last-child {
            border-bottom: none;
        }
        
        .workshop-item:visited {
            color: #000;
        }
        
        .hover-image {
            position: fixed;
            pointer-events: none;
            z-index: 1000;
            opacity: 0;
            transition: opacity 0.3s ease;
            border: 0.1px solid #000;
            background: #fff;
            padding: 5px;
            transform: translate(-50%, -50%);
        }
        
        .hover-image.active {
            opacity: 1;
        }
        
        .hover-image img {
            display: block;
            width: 200px;
            height: auto;
        }
        
        .workshop-name {
            flex: 1;
        }
        
        .workshop-date {
            font-size: 12px;
            opacity: 0.6;
            white-space: nowrap;
            margin-left: 20px;
        }
        
        footer {
            margin-top: 20px;
            padding-top: 20px;
            border-top: 0.1px solid #000;
            font-size: 12px;
            opacity: 0.7;
            transform: translateZ(100px);
        }
        
        @media (max-width: 768px) {
            .hover-image {
                display: none;
            }
            
            body {
                padding: 15px;
                height: auto;
                min-height: 100vh;
            }
            
            main {
                padding: 15px;
                max-width: 100%;
            }
            
            h1 {
                font-size: 20px;
            }
            
            nav {
                gap: 10px;
            }
            
            .workshop-list {
                max-height: 50vh;
                transform: translateZ(80px);
            }
            
            .workshop-item {
                flex-direction: column;
                gap: 5px;
                padding: 10px 0;
            }
            
            .workshop-date {
                margin-left: 0;
            }
            
            header {
                transform: translateZ(60px);
            }
            
            footer {
                transform: translateZ(50px);
            }
        }
        
        @media (max-width: 480px) {
            body {
                padding: 10px;
            }
            
            main {
                padding: 12px;
            }
            
            h1 {
                font-size: 18px;
            }
            
            nav a {
                font-size: 13px;
            }
            
            .workshop-list {
                max-height: 60vh;
                padding: 8px;
            }
            
            .workshop-item {
                padding: 8px 0;
            }
            
            .workshop-name {
                font-size: 13px;
            }
            
            .workshop-date {
                font-size: 11px;
            }
            
            footer {
                font-size: 11px;
            }
        }
        
        @media (min-width: 1200px) {
            main {
                max-width: 900px;
            }
            
            .workshop-list {
                max-height: 500px;
            }
        }