@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@400;700&display=swap');
        
        body {
            font-family: 'Noto Sans KR', sans-serif;
            text-align: center;
            margin: 0;
            background-color: #eef2f3;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            flex-direction: column;
        }
        .logo {
            margin-bottom: -40px;
            width: 150px;
            height: auto;
        }
        .container {
            background: white;
            padding: 30px;
            border-radius: 12px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
            max-width: 380px;
            width: 100%;
            transition: all 0.3s ease-in-out;
        }
        h2 {
            color: #333;
            margin-bottom: 15px;
        }
        p {
            color: #666;
            font-size: 14px;
            margin-bottom: 20px;
        }
        input {
            width: 93%;
            padding: 10px;
            margin-bottom: 15px;
            border: 1px solid #ddd;
            border-radius: 6px;
            font-size: 16px;
            text-align: center;
        }
        button {
            background: linear-gradient(135deg, #6b73ff, #000dff);
            color: white;
            border: none;
            padding: 12px;
            border-radius: 6px;
            cursor: pointer;
            font-size: 16px;
            width: 100%;
            transition: 0.3s;
        }
        button:hover {
            background: linear-gradient(135deg, #5a62e3, #000bbb);
        }
        .content {
            display: none;
            padding: 30px;
            background: white;
            border-radius: 12px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
            max-width: 400px;
            width: 100%;
            text-align: left;
            animation: fadeIn 0.5s ease-in-out;
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .content h3 {
            color: #444;
            font-size: 18px;
            border-bottom: 2px solid #6b73ff;
            padding-bottom: 8px;
            margin-bottom: 15px;
        }
        .content p {
            color: #555;
            font-size: 15px;
            line-height: 1.6;
            background: #f7f9fc;
            padding: 12px;
            border-radius: 8px;
        }
        .footer {
            margin-top: 20px;
            font-size: 12px;
            color: #888;
            text-align: center;
        }
        .footer a {
            text-decoration: none; /* 밑줄 제거 */
            color: #888; /* 푸터와 동일한 색상 적용 */
        }

        button:focus, a:focus {
            outline: 2px dashed #000000; 
        }

        *:focus {
             outline: 2px dashed #000000; /* 모든 포커스된 요소에 검정 점선 테두리 */
        }

        ::selection {
            background-color: #5dbcea;
            color: white;
        }