/* style.css */
        :root {
            --primary: #2c3e50;
            --accent: #3498db;
            --bg: #f8f9fa;
            --card-bg: #ffffff;
            --python-blue: #3776ab;
            --github-gray: #24292e;
            --danger: #d63031;
        }
        body { 
            font-family: 'Pretendard', -apple-system, sans-serif; 
            background-color: var(--bg); 
            margin: 0; padding: 0; color: var(--primary); 
            line-height: 1.6;
        }

        /* 상단 네비바 */
        .top-navbar {
            background: #fff; border-bottom: 1px solid #e1e4e8;
            padding: 8px 40px; display: flex; justify-content: space-between;
            align-items: center; position: sticky; top: 0; z-index: 1000;
        }
        .weather-top { font-size: 0.85rem; font-weight: 600; display: flex; align-items: center; gap: 10px; }
        .top-info-text { font-size: 0.75rem; color: #666; font-weight: bold; }
        .mark { color: var(--python-blue); margin-right: 3px; }

        /* 메인 컨테이너 */
        .container { padding: 40px; max-width: 1300px; margin: 0 auto; }
        .header { text-align: center; margin-bottom: 35px; }
        
        /* 캐릭터 사진 스타일 */
        .profile-img {
            width: 100px; height: 100px; border-radius: 50%;
            margin-bottom: 15px; border: 3px solid #fff; box-shadow: 0 4px 10px rgba(0,0,0,0.1);
        }

        .header h1 { font-size: 2.2rem; margin-bottom: 10px; color: var(--primary); letter-spacing: -1px; }

        /* 버튼 레이아웃 */
        .nav-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-bottom: 40px; }
        .nav-btn {
            text-decoration: none; padding: 10px 18px; border-radius: 8px;
            font-weight: 600; transition: all 0.2s ease; display: flex; align-items: center; gap: 8px;
            font-size: 0.9rem; color: white; border: none; cursor: pointer;
        }
        .btn-stack { background: #8e44ad; } /* 기술 스택 버튼 색상 */
        .btn-react { background: #61dafb; color: #282c34; }
        .btn-vue { background: #42b883; }
        .btn-github { background: var(--github-gray); }
        .btn-wiki { background: #586069; }
        .nav-btn:hover { transform: translateY(-2px); opacity: 0.9; box-shadow: 0 4px 12px rgba(0,0,0,0.1); }

        /* 그리드 및 카드 */
        .dashboard-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(350px, 1fr)); gap: 25px; }
        .card { 
            background: var(--card-bg); border-radius: 16px; padding: 22px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.05); border: 1px solid #eee;
            display: flex; flex-direction: column;
        }
        .card h3 { margin-top: 0; font-size: 1.05rem; padding-bottom: 12px; border-bottom: 1px solid #f0f0f0; margin-bottom: 15px; }

        /* 로또 섹션 스타일 */
        .lotto-warning { background: #fff5f5; border-left: 4px solid var(--danger); padding: 10px; margin-bottom: 10px; }
        .lotto-warning p { color: var(--danger); font-size: 0.75rem; font-weight: bold; margin: 0; line-height: 1.4; }
        
        .algo-box { background: #f1f5f9; padding: 10px; border-radius: 8px; margin-bottom: 15px; font-size: 0.75rem; color: #475569; }
        .algo-title { font-weight: bold; color: var(--python-blue); display: block; margin-bottom: 4px; }

        .lotto-ball {
            display: inline-block; width: 34px; height: 34px; line-height: 34px;
            text-align: center; border-radius: 50%; background: #f39c12; color: white;
            font-weight: bold; margin-right: 5px; font-size: 0.9rem;
        }


        .refresh-btn { margin-top: auto; cursor: pointer; border: 1px solid #ddd; background: #fff; padding: 6px 12px; border-radius: 6px; font-size: 0.75rem; font-weight: bold; }

        /*  팝업 스타일 */
		.btn-stack-small {
		    background: #fff;
		    color: #8e44ad;
		    border: 1px solid #8e44ad;
		    padding: 2px 6px;
		    border-radius: 4px;
		    font-size: 0.7rem;
		    font-weight: bold;
		    cursor: pointer;
		    transition: all 0.2s;
		}
		.btn-stack-small:hover {
		    background: #8e44ad;
		    color: #fff;
		}

        /* 하단 푸터 (데이터 출처 명시) */
        .footer { margin-top: 50px; padding: 20px; text-align: center; border-top: 1px solid #e1e4e8; color: #94a3b8; font-size: 0.8rem; }
        .source-list { list-style: none; padding: 0; display: flex; justify-content: center; gap: 20px; margin-top: 10px; }

        .refresh-btn { margin-top: auto; cursor: pointer; border: 1px solid #ddd; background: #fff; padding: 6px 12px; border-radius: 6px; font-size: 0.75rem; font-weight: bold; }
    

		@media (max-width: 768px) {
		    body { padding: 10px; } /* 여백 줄임 */
		    
		    .top-navbar { 
		        flex-direction: column; /* 날씨와 안내 문구를 세로로 배치 */
		        align-items: flex-start;
		        padding: 10px 20px;
		    }
		
		    .container { padding: 20px 10px; }
		
		    .header h1 { font-size: 1.6rem; } /* 제목 크기 축소 */
		
		    .nav-links { gap: 8px; }
		    .nav-btn { 
		        width: 100%; /* 버튼을 가득 채워 터치하기 편하게 */
		        justify-content: center;
		        font-size: 0.85rem;
		    }
		
		    .dashboard-grid {
		        grid-template-columns: 1fr; /* 무조건 한 줄로 배치 */
		    }
		    
		    .source-list {
		        flex-direction: column; /* 푸터 출처도 세로로 */
		        gap: 5px;
		    }
		}