/* 전체 스타일 */
        :root {
            --primary-color: #4a6fa5;
            --secondary-color: #166088;
            --accent-color: #03a9f4;
            --text-color: #333;
            --light-bg: #f5f9fc;
            --dark-bg: #2c3e50;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Noto Sans KR', sans-serif;
        }
        
        body {
            background-color: var(--light-bg);
            color: var(--text-color);
            line-height: 1.6;
        }
        
        a {
            text-decoration: none;
            color: var(--primary-color);
            transition: all 0.3s ease;
        }
        
        a:hover {
            color: var(--accent-color);
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* 헤더 스타일 */
        header {
            background-color: white;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
        }
        
        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
        }
        
        .logo {
            font-size: 24px;
            font-weight: 700;
            color: var(--secondary-color);
        }
        
        .nav-links {
            display: flex;
            list-style: none;
        }
        
        .nav-links li {
            margin-left: 40px;
        }
        
        .nav-links a {
            font-weight: 500;
        }
        
        /* 메인 히어로 섹션 */
        .hero {
            height: 100vh;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, var(--light-bg) 0%, #c8eeff 100%);
            padding-top: 60px;
        }
        
        .hero-content {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        
        .hero-text {
            flex: 1;
            padding-right: 40px;
        }
        
        .hero-img {
            flex: 1;
            text-align: center;
        }
        
        .hero-img img {
            max-width: 100%;
            border-radius: 50%;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        }
        
        h1 {
            font-size: 48px;
            margin-bottom: 20px;
            color: var(--dark-bg);
        }
        
        .highlight {
            color: var(--accent-color);
        }
        
        .hero p {
            font-size: 18px;
            margin-bottom: 30px;
            color: #666;
        }
        
        .social-links {
            display: flex;
            margin-top: 30px;
        }
        
        .social-btn {
            display: inline-flex;
            align-items: center;
            padding: 12px 25px;
            background-color: var(--primary-color);
            color: white;
            border-radius: 30px;
            margin-right: 15px;
            font-weight: 500;
            transition: all 0.3s ease;
        }
        
        .social-btn:hover {
            background-color: var(--secondary-color);
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            color: white;
        }
        
        .social-btn i {
            margin-right: 10px;
            font-size: 20px;
        }
        
        /* 소개 섹션 */
        .about {
            padding: 100px 0;
            background-color: white;
        }
        
        h2 {
            font-size: 36px;
            margin-bottom: 30px;
            text-align: center;
            color: var(--secondary-color);
        }
        
        .about-content {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        
        .about-text {
            flex: 1;
            padding-right: 40px;
        }
        
        .about-text p {
            margin-bottom: 20px;
            font-size: 16px;
        }
        
        /* 기술 스택 섹션 */
        .skills {
            padding: 100px 0;
            background-color: var(--light-bg);
        }
        
        .skills-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-top: 50px;
        }
        
        .skill-card {
            background-color: white;
            border-radius: 10px;
            padding: 30px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
        }
        
        .skill-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        
        .skill-card h3 {
            font-size: 22px;
            margin-bottom: 15px;
            color: var(--primary-color);
        }
        
        .skill-card p {
            color: #666;
            margin-bottom: 20px;
        }
        
        .skill-level {
            height: 8px;
            background-color: #e9ecef;
            border-radius: 4px;
            margin-top: 15px;
        }
        
        .skill-progress {
            height: 100%;
            border-radius: 4px;
            background-color: var(--accent-color);
        }
        
        /* 프로젝트 섹션 */
        .projects {
            padding: 100px 0;
            background-color: white;
        }
        
        .projects-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin-top: 50px;
        }
        
        .project-card {
            background-color: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
        }
        
        .project-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        
        .project-img {
            width: 100%;
            height: 200px;
            background-color: #e9ecef;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: #adb5bd;
        }
        
        .project-content {
            padding: 20px;
        }
        
        .project-content h3 {
            font-size: 20px;
            margin-bottom: 10px;
            color: var(--secondary-color);
        }
        
        .project-content p {
            color: #666;
            margin-bottom: 20px;
        }
        
        .project-tags {
            display: flex;
            flex-wrap: wrap;
            margin-bottom: 15px;
        }
        
        .tag {
            padding: 5px 12px;
            background-color: var(--light-bg);
            border-radius: 20px;
            font-size: 12px;
            margin-right: 8px;
            margin-bottom: 8px;
            color: var(--primary-color);
        }
        
        .project-link {
            display: inline-block;
            padding: 8px 16px;
            background-color: var(--primary-color);
            color: white;
            border-radius: 4px;
            font-size: 14px;
            font-weight: 500;
        }
        
        .project-link:hover {
            background-color: var(--secondary-color);
            color: white;
        }
        
        /* 연락처 섹션 */
        .contact {
            padding: 100px 0;
            background-color: var(--light-bg);
        }
        
        .contact-container {
            max-width: 800px;
            margin: 0 auto;
            background-color: white;
            padding: 40px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        
        .contact-form {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        
        .form-group {
            margin-bottom: 20px;
        }
        
        .form-group.full-width {
            grid-column: span 2;
        }
        
        label {
            display: block;
            margin-bottom: 5px;
            font-weight: 500;
            color: var(--text-color);
        }
        
        input, textarea {
            width: 100%;
            padding: 12px;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-size: 16px;
            transition: all 0.3s ease;
        }
        
        input:focus, textarea:focus {
            border-color: var(--accent-color);
            outline: none;
            box-shadow: 0 0 0 2px rgba(3, 169, 244, 0.2);
        }
        
        textarea {
            resize: vertical;
            min-height: 150px;
        }
        
        button[type="submit"] {
            padding: 12px 25px;
            background-color: var(--primary-color);
            color: white;
            border: none;
            border-radius: 5px;
            font-size: 16px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        button[type="submit"]:hover {
            background-color: var(--secondary-color);
        }
        
        /* 푸터 */
        footer {
            background-color: var(--dark-bg);
            color: white;
            padding: 40px 0;
            text-align: center;
        }
        
        .footer-content {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .footer-links {
            display: flex;
            justify-content: center;
            margin: 20px 0;
            list-style: none;
        }
        
        .footer-links li {
            margin: 0 15px;
        }
        
        .footer-links a {
            color: rgba(255, 255, 255, 0.8);
        }
        
        .footer-links a:hover {
            color: white;
        }
        
        .copyright {
            margin-top: 20px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
        }
        
        /* 반응형 스타일 */
        @media (max-width: 992px) {
            .hero-content, .about-content {
                flex-direction: column;
                text-align: center;
            }
            
            .hero-text, .about-text {
                padding-right: 0;
                margin-bottom: 40px;
            }
            
            .social-links {
                justify-content: center;
            }
            
            h1 {
                font-size: 36px;
            }
            
            .skill-card, .project-card {
                padding: 20px;
            }
        }
        
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            
            .projects-grid {
                grid-template-columns: 1fr;
            }
            
            .contact-form {
                grid-template-columns: 1fr;
            }
            
            .form-group.full-width {
                grid-column: span 1;
            }
        }