/* ===== 기본 리셋 및 폰트 설정 ===== */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            overflow-x: hidden;
            background: #0a0a0a;
            color: #fff;
        }

        /* ===== 애니메이션 배경 ===== */
        .animated-bg {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            background: linear-gradient(135deg, #1a1a2e 0%, #0f0f1e 50%, #16213e 100%);
        }

        /* 배경의 움직이는 원형 요소들 */
        .bg-circle {
            position: absolute;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(79, 172, 254, 0.15) 0%, transparent 70%);
            animation: float 20s infinite ease-in-out;
        }

        .bg-circle:nth-child(1) {
            width: 300px;
            height: 300px;
            top: 10%;
            left: 10%;
            animation-delay: 0s;
        }

        .bg-circle:nth-child(2) {
            width: 400px;
            height: 400px;
            top: 50%;
            right: 10%;
            animation-delay: 5s;
            background: radial-gradient(circle, rgba(142, 68, 173, 0.15) 0%, transparent 70%);
        }

        .bg-circle:nth-child(3) {
            width: 250px;
            height: 250px;
            bottom: 10%;
            left: 30%;
            animation-delay: 10s;
            background: radial-gradient(circle, rgba(52, 152, 219, 0.15) 0%, transparent 70%);
        }

        @keyframes float {
            0%, 100% {
                transform: translate(0, 0) scale(1);
            }
            25% {
                transform: translate(50px, 50px) scale(1.1);
            }
            50% {
                transform: translate(-30px, 80px) scale(0.9);
            }
            75% {
                transform: translate(70px, -40px) scale(1.05);
            }
        }

        /* ===== 네비게이션 바 ===== */
        nav {
            position: fixed;
            top: 0;
            width: 100%;
            background: rgba(10, 10, 10, 0.85);
            backdrop-filter: blur(10px);
            padding: 20px 0;
            z-index: 1000;
            transition: all 0.3s ease;
        }

        nav.scrolled {
            padding: 15px 0;
            box-shadow: 0 5px 30px rgba(0, 0, 0, 0.5);
        }

        .nav-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 50px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-size: 28px;
            font-weight: bold;
            color: #4facfe;
            text-decoration: none;
            letter-spacing: 2px;
        }

        .nav-links {
            display: flex;
            gap: 40px;
            list-style: none;
        }

        .nav-links a {
            color: #fff;
            text-decoration: none;
            font-size: 16px;
            font-weight: 500;
            transition: all 0.3s ease;
            position: relative;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: #4facfe;
            transition: width 0.3s ease;
        }

        .nav-links a:hover::after {
            width: 100%;
        }

        /* ===== 섹션 공통 스타일 ===== */
        section {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 100px 50px;
            position: relative;
        }

        .section-content {
            max-width: 1200px;
            width: 100%;
            opacity: 0;
            transform: translateY(50px);
            transition: all 0.8s ease;
        }

        .section-content.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .section-number {
            font-size: 80px;
            font-weight: bold;
            color: rgba(79, 172, 254, 0.1);
            margin-bottom: 20px;
        }

        h2 {
            font-size: 48px;
            margin-bottom: 40px;
            background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        /* ===== 히어로 섹션 ===== */
        #hero {
            text-align: center;
            flex-direction: column;
        }

        #hero h1 {
            font-size: 80px;
            margin-bottom: 20px;
            animation: fadeInUp 1s ease;
            background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        #hero p {
            font-size: 24px;
            color: #aaa;
            margin-bottom: 50px;
            animation: fadeInUp 1s ease 0.2s both;
        }

        /* 지원하기 버튼 */
        .apply-btn {
            display: inline-block;
            padding: 18px 50px;
            background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
            color: #fff;
            text-decoration: none;
            border-radius: 50px;
            font-size: 18px;
            font-weight: bold;
            transition: all 0.3s ease;
            animation: fadeInUp 1s ease 0.4s both;
            box-shadow: 0 10px 30px rgba(79, 172, 254, 0.3);
        }

        .apply-btn:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 40px rgba(79, 172, 254, 0.5);
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ===== 소개 섹션 ===== */
        #intro .intro-text {
            font-size: 18px;
            line-height: 2;
            color: #ccc;
        }

        #intro .intro-text strong {
            color: #4facfe;
        }

        /* ===== 작업 섹션 (포트폴리오 그리드) ===== */
        .work-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }

        .work-item {
            background: rgba(255, 255, 255, 0.05);
            border-radius: 20px;
            padding: 40px;
            transition: all 0.3s ease;
            border: 1px solid rgba(79, 172, 254, 0.2);
        }

        .work-item:hover {
            transform: translateY(-10px);
            background: rgba(255, 255, 255, 0.08);
            box-shadow: 0 20px 40px rgba(79, 172, 254, 0.2);
        }

        /* 이미지 영역 - 주석처리해서 나중에 이미지 추가 가능하도록 */
        /*
        .work-item img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 10px;
            margin-bottom: 20px;
        }
        */

        .work-item h3 {
            font-size: 24px;
            margin-bottom: 15px;
            color: #4facfe;
        }

        .work-item h2 {
            font-size: 18px;
            margin-bottom: 10px;
            color: rgb(219, 29, 29);
        }

        .work-item p {
            color: #aaa;
            line-height: 1.8;
        }

        /* ===== 커리큘럼 섹션 ===== */
        .curriculum-list {
            display: grid;
            gap: 30px;
            margin-top: 40px;
        }

        .curriculum-item {
            background: rgba(255, 255, 255, 0.05);
            border-left: 4px solid #4facfe;
            padding: 30px;
            border-radius: 10px;
            transition: all 0.3s ease;
        }

        .curriculum-item:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateX(10px);
        }

        .curriculum-item h3 {
            font-size: 24px;
            margin-bottom: 15px;
            color: #4facfe;
        }

        .curriculum-item p {
            color: #aaa;
            line-height: 1.8;
        }

        /* ===== QNA 섹션 ===== */
        .qna-list {
            display: grid;
            gap: 20px;
            margin-top: 40px;
        }

        .qna-item {
            background: rgba(255, 255, 255, 0.05);
            padding: 30px;
            border-radius: 10px;
            transition: all 0.3s ease;
        }

        .qna-item:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        .qna-item h3 {
            font-size: 22px;
            margin-bottom: 15px;
            color: #4facfe;
        }

        .qna-item p {
            color: #aaa;
            line-height: 1.8;
        }

        /* ===== 푸터 ===== */
        footer {
            background: rgba(10, 10, 10, 0.95);
            padding: 60px 50px 30px;
            text-align: center;
            border-top: 1px solid rgba(79, 172, 254, 0.2);
        }

        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
        }

        .footer-title {
            font-size: 36px;
            font-weight: bold;
            margin-bottom: 10px;
            color: #4facfe;
        }

        .footer-subtitle {
            font-size: 18px;
            color: #aaa;
            margin-bottom: 40px;
        }

        .footer-info {
            display: flex;
            justify-content: center;
            gap: 60px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }

        .footer-info div {
            text-align: left;
        }

        .footer-info strong {
            display: block;
            color: #4facfe;
            margin-bottom: 5px;
        }

        .footer-info a {
            color: #aaa;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .footer-info a:hover {
            color: #4facfe;
        }

        .footer-bottom {
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #666;
            font-size: 14px;
        }

        /* ===== 반응형 디자인 ===== */
        @media (max-width: 768px) {
            #hero h1 {
                font-size: 48px;
            }

            h2 {
                font-size: 36px;
            }

            .nav-links {
                gap: 20px;
            }

            .work-grid {
                grid-template-columns: 1fr;
            }

            .footer-info {
                flex-direction: column;
                gap: 30px;
            }
        }