/* CSS 변수 정의 - 클린 테마 */
:root {
    --primary-black: #000000;
    --primary-purple: #8B5CF6;
    --primary-cyan: #06B6D4;
    --primary-white: #FFFFFF;
    --secondary-purple: #A855F7;
    --secondary-cyan: #0891B2;
    --dark-gray: #1F1F1F;
    --medium-gray: #2D2D2D;
    --light-gray: #404040;
    --text-gray: #E5E5E5;
    --border-color: rgba(139, 92, 246, 0.3);
}

/* 기본 스타일 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans KR', sans-serif;
    line-height: 1.6;
    color: var(--text-gray);
    background: var(--primary-black);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 헤더 스타일 */
.header {
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(20px);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.navbar {
    padding: 1rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo {
    height: 45px;
    width: auto;
}

.company-name {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-purple);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-gray);
    font-weight: 500;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    position: relative;
}

.nav-menu a:hover {
    color: var(--primary-cyan);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-purple), var(--primary-cyan));
    transition: width 0.3s ease;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary-purple);
    margin: 3px 0;
    transition: 0.3s;
}

/* 카탈로그 다운로드 버튼 (헤더) */
.catalog-btn {
    background: linear-gradient(45deg, #4CAF50, #45a049);
    color: var(--primary-white);
    padding: 10px 20px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(76, 175, 80, 0.3);
    white-space: nowrap;
}

.catalog-btn:hover {
    background: linear-gradient(45deg, #45a049, #4CAF50);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(76, 175, 80, 0.4);
}

/* 히어로 섹션 */
.hero {
    background: var(--primary-black);
    color: var(--primary-white);
    padding: 120px 0 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

/* 동영상 배경 컨테이너 */
.video-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* 동영상 스타일 */
.video-background video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
}

/* 동영상 위 오버레이 */
.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 2;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 3;
}

.hero-text h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    line-height: 1.2;
    color: var(--primary-white);
}

.hero-text h2 {
    font-size: 1.8rem;
    font-weight: 300;
    margin-bottom: 1.5rem;
    color: var(--primary-cyan);
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    color: var(--text-gray);
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
}

.btn {
    padding: 15px 35px;
    border: none;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    cursor: pointer;
    display: inline-block;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(45deg, var(--primary-purple), var(--secondary-purple));
    color: var(--primary-white);
    border: 2px solid var(--primary-purple);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 20px rgba(139, 92, 246, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-cyan);
    border: 2px solid var(--primary-cyan);
}

.btn-secondary:hover {
    background: var(--primary-cyan);
    color: var(--primary-black);
    transform: translateY(-3px);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.hero-bg-container {
    position: relative;
    width: 100%;
    max-width: 600px;
    border-radius: 15px;
    overflow: hidden;
}

.hero-bg {
    width: 100%;
    height: auto;
    display: block;
}

/* 섹션 공통 스타일 */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--primary-purple);
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.2rem;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* 회사 소개 섹션 */
.about {
    padding: 100px 0;
    background: var(--dark-gray);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(30deg, transparent 48%, rgba(6, 182, 212, 0.02) 49%, rgba(6, 182, 212, 0.02) 51%, transparent 52%),
        linear-gradient(-30deg, transparent 48%, rgba(139, 92, 246, 0.02) 49%, rgba(139, 92, 246, 0.02) 51%, transparent 52%);
    background-size: 80px 80px;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.about-text h3 {
    font-size: 2.2rem;
    color: var(--primary-cyan);
    margin-bottom: 1rem;
}

.about-text p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    line-height: 1.8;
    color: var(--text-gray);
}

.about-features {
    list-style: none;
}

.about-features li {
    padding: 0.8rem 0;
    font-size: 1.2rem;
    color: var(--primary-purple);
    position: relative;
    padding-left: 30px;
}

.about-features li::before {
    content: "⚡";
    position: absolute;
    left: 0;
    color: var(--primary-cyan);
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.stat-item {
    background: rgba(139, 92, 246, 0.1);
    padding: 2.5rem;
    border-radius: 15px;
    border: 1px solid var(--border-color);
    text-align: center;
    backdrop-filter: blur(10px);
}

.stat-item h4 {
    font-size: 1.8rem;
    color: var(--primary-cyan);
    margin-bottom: 0.5rem;
}

.stat-item p {
    color: var(--text-gray);
}

/* 제품 섹션 */
.products {
    padding: 100px 0;
    background: var(--primary-black);
    position: relative;
}

.products::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 25% 25%, rgba(139, 92, 246, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(6, 182, 212, 0.05) 0%, transparent 50%);
}

.products-grid {
    display: grid;
    gap: 3rem;
    position: relative;
    z-index: 1;
}

.product-card {
    background: rgba(31, 31, 31, 0.8);
    border-radius: 20px;
    overflow: hidden;
    border: 2px solid var(--border-color);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.5);
    transition: all 0.3s ease;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    backdrop-filter: blur(15px);
}

.product-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-cyan);
}

.product-image {
    padding: 2.5rem;
    position: relative;
}

.product-img {
    width: 100%;
    height: auto;
    border-radius: 15px;
    border: 1px solid var(--primary-cyan);
}

.product-info {
    padding: 2.5rem;
}

.product-info h3 {
    font-size: 2rem;
    color: var(--primary-purple);
    margin-bottom: 0.5rem;
}

.product-info h4 {
    font-size: 1.2rem;
    color: var(--primary-cyan);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.product-info p {
    margin-bottom: 2rem;
    line-height: 1.7;
    color: var(--text-gray);
    font-size: 1.1rem;
}

.product-features {
    list-style: none;
}

.product-features li {
    padding: 0.5rem 0;
    color: var(--primary-cyan);
    position: relative;
    padding-left: 25px;
}

.product-features li::before {
    content: "▶";
    position: absolute;
    left: 0;
    color: var(--primary-purple);
}

/* 기술력 섹션 */
.technology {
    padding: 100px 0;
    background: var(--dark-gray);
    position: relative;
}

.technology::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 98px,
            rgba(139, 92, 246, 0.03) 100px,
            rgba(139, 92, 246, 0.03) 102px
        ),
        repeating-linear-gradient(
            -45deg,
            transparent,
            transparent 98px,
            rgba(6, 182, 212, 0.03) 100px,
            rgba(6, 182, 212, 0.03) 102px
        );
}

.technology-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    position: relative;
    z-index: 1;
}

.tech-card {
    background: rgba(31, 31, 31, 0.8);
    padding: 2.5rem 2rem;
    border-radius: 20px;
    border: 2px solid var(--border-color);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    backdrop-filter: blur(15px);
    position: relative;
    overflow: hidden;
    min-height: 420px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.tech-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-cyan);
}

.tech-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.tech-card h3 {
    font-size: 1.2rem;
    color: var(--primary-cyan);
    margin-bottom: 1.2rem;
    text-align: center;
    line-height: 1.3;
    letter-spacing: -0.3px;
    word-break: keep-all;
    hyphens: none;
}

.tech-card p {
    color: var(--text-gray);
    line-height: 1.6;
    margin-bottom: 1.5rem;
    text-align: center;
    font-size: 0.95rem;
    letter-spacing: 0.1px;
}

.tech-features {
    list-style: none;
    padding: 0;
    margin-top: auto;
}

.tech-features li {
    padding: 0.6rem 0;
    color: var(--primary-purple);
    position: relative;
    padding-left: 25px;
    font-size: 0.9rem;
    line-height: 1.4;
    letter-spacing: 0.1px;
    word-break: keep-all;
}

.tech-features li::before {
    content: "⚡";
    position: absolute;
    left: 0;
    color: var(--primary-cyan);
}

/* 적용 분야 섹션 */
.applications {
    padding: 100px 0;
    background: var(--primary-black);
    position: relative;
}

.applications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    position: relative;
    z-index: 1;
}

.application-item {
    background: rgba(31, 31, 31, 0.8);
    padding: 2.5rem;
    border-radius: 20px;
    text-align: center;
    border: 2px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.application-item:hover {
    transform: translateY(-8px);
    border-color: var(--primary-cyan);
}

.application-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

.application-item h3 {
    font-size: 1.4rem;
    color: var(--primary-cyan);
    margin-bottom: 1rem;
}

.application-item p {
    color: var(--text-gray);
    line-height: 1.6;
}

/* 인증 및 품질 섹션 */
.certifications {
    padding: 100px 0;
    background: var(--dark-gray);
    position: relative;
}

.cert-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.cert-text h3 {
    font-size: 2.2rem;
    color: var(--primary-cyan);
    margin-bottom: 1.5rem;
}

.cert-text p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    line-height: 1.8;
    color: var(--text-gray);
}

.cert-list {
    list-style: none;
    padding: 0;
}

.cert-list li {
    padding: 1rem 0;
    font-size: 1.1rem;
    color: var(--text-gray);
    border-bottom: 1px solid var(--border-color);
}

.cert-list li:last-child {
    border-bottom: none;
}

.cert-list strong {
    color: var(--primary-purple);
}

.cert-features {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.cert-item {
    background: rgba(45, 45, 45, 0.8);
    padding: 2.5rem;
    border-radius: 15px;
    border: 2px solid var(--border-color);
    text-align: center;
    backdrop-filter: blur(10px);
}

.cert-item h4 {
    font-size: 1.5rem;
    color: var(--primary-cyan);
    margin-bottom: 1rem;
}

.cert-item p {
    color: var(--text-gray);
    line-height: 1.6;
}

/* 연락처 섹션 */
.contact {
    padding: 100px 0;
    background: var(--primary-black);
    position: relative;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    position: relative;
    z-index: 1;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.contact-item {
    background: rgba(31, 31, 31, 0.8);
    padding: 2.5rem;
    border-radius: 15px;
    border: 2px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.contact-item h3 {
    color: var(--primary-cyan);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.contact-item p {
    color: var(--text-gray);
    line-height: 1.6;
}

.contact-form {
    background: rgba(45, 45, 45, 0.8);
    padding: 2.5rem;
    border-radius: 15px;
    border: 2px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.contact-form h3 {
    color: var(--primary-purple);
    margin-bottom: 2rem;
    font-size: 1.5rem;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
    width: 100%;
    padding: 15px;
    margin-bottom: 1.5rem;
    border: 2px solid var(--light-gray);
    border-radius: 8px;
    font-family: inherit;
    background: rgba(0, 0, 0, 0.5);
    color: var(--text-gray);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
    outline: none;
    border-color: var(--primary-cyan);
    background: rgba(0, 0, 0, 0.7);
}

.contact-form select {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23E5E5E5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 15px center;
    background-size: 20px;
}

.contact-form select option {
    background: var(--dark-gray);
    color: var(--text-gray);
    padding: 10px;
}

.contact-form button {
    width: 100%;
    padding: 15px;
    background: linear-gradient(45deg, var(--primary-purple), var(--primary-cyan));
    border: none;
    border-radius: 8px;
    color: var(--primary-white);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.contact-form button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(139, 92, 246, 0.4);
}

/* 푸터 */
.footer {
    background: linear-gradient(135deg, var(--primary-black) 0%, var(--dark-gray) 100%);
    color: var(--text-gray);
    padding: 3rem 0;
    border-top: 2px solid var(--border-color);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.footer-logo-img {
    height: 35px;
    width: auto;
}

.footer-logo span {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-purple);
}

.footer-info {
    text-align: right;
}

.footer-info p {
    margin-bottom: 0.5rem;
    color: var(--text-gray);
}

/* 스크롤 진행률 바 */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-purple), var(--primary-cyan));
    z-index: 9999;
    transition: width 0.3s ease;
}

/* 애니메이션 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.8s ease-out;
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(0, 0, 0, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 2rem;
        border-top: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu li {
        margin-bottom: 1rem;
    }
    
    .catalog-btn {
        display: none;
    }
    
    /* 모바일에서 동영상 최적화 */
    .hero-video {
        object-position: center center;
    }
    
    .hero-overlay {
        background: rgba(0, 0, 0, 0.7);
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .hero-text h2 {
        font-size: 1.3rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .product-card {
        grid-template-columns: 1fr;
    }
    
    .catalog-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    /* 기술력 섹션 모바일 */
    .technology-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    /* 카탈로그 섹션 모바일 */
    .catalog-compact {
        flex-direction: column;
        gap: 1.5rem;
        padding: 2rem;
        text-align: center;
    }
    
    .catalog-download {
        flex-direction: column;
        gap: 1rem;
    }
    
    /* 연락처 섹션 모바일 */
    .contact-info-card {
        padding: 2.5rem 2rem;
        margin: 0 1rem;
    }
    
    .contact-phone,
    .contact-email {
        font-size: 1.2rem;
        word-break: break-all;
    }
    
    .cert-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }
    
    .footer-info {
        text-align: center;
    }
    
    .applications-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .section-header h2 {
        font-size: 2.2rem;
    }
}

/* 동영상 로딩 실패 시 폴백 */
@media (prefers-reduced-motion: reduce) {
    .hero-video {
        display: none;
    }
    
    .hero {
        background: 
            linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)),
            url('../images/bg1.jpg') center/cover no-repeat;
    }
}

/* 태블릿 크기에서 기술력 섹션 2개씩 */
@media (max-width: 1024px) and (min-width: 769px) {
    .technology-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2.5rem;
    }
    
    .tech-card:last-child {
        grid-column: 1 / -1;
        max-width: 50%;
        margin: 0 auto;
    }
}

/* 저사양 기기 최적화 */
@media (max-width: 480px) {
    .hero-video {
        transform: scale(1.1);
    }
    
    .hero-text h1 {
        font-size: 2rem;
    }
    
    .btn {
        padding: 12px 25px;
        font-size: 1rem;
    }
    
    .applications-grid {
        grid-template-columns: 1fr;
    }
    
    .application-item {
        padding: 2rem;
    }
    
    .tech-card {
        padding: 2rem 1.5rem;
        min-height: 350px;
    }
    
    .tech-card h3 {
        font-size: 1.1rem;
        line-height: 1.2;
    }
    
    .tech-card p {
        font-size: 0.9rem;
    }
    
    .tech-features li {
        font-size: 0.85rem;
        padding: 0.5rem 0;
    }
    
    .contact-info-card {
        padding: 2rem 1.5rem;
    }
    
    .contact-phone,
    .contact-email {
        font-size: 1.1rem;
    }
    
    .catalog-compact {
        padding: 1.5rem;
        margin: 0 0.5rem;
    }
    
    .catalog-info h3 {
        font-size: 1.5rem;
    }
    
    .btn-download-compact {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .cert-item {
        padding: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 2rem;
    }
    
    .btn {
        padding: 12px 25px;
        font-size: 1rem;
    }
    
    .applications-grid {
        grid-template-columns: 1fr;
    }
    
    .application-item {
        padding: 2rem;
    }
    
    .contact-form,
    .contact-item {
        padding: 2rem;
    }
    
    .tech-card {
        padding: 2.5rem 2rem;
        min-height: 350px;
    }
    
    .tech-card h3 {
        font-size: 1.2rem;
        line-height: 1.3;
    }
    
    .tech-card p {
        font-size: 0.95rem;
    }
    
    .tech-features li {
        font-size: 0.9rem;
        padding: 0.6rem 0;
    }
    
    .technology-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .cert-item {
        padding: 2rem;
    }
}

/* 스크롤바 스타일링 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--dark-gray);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(var(--primary-purple), var(--primary-cyan));
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(var(--secondary-purple), var(--secondary-cyan));
}

/* 선택 텍스트 스타일 */
::selection {
    background: var(--primary-purple);
    color: var(--primary-white);
}

::-moz-selection {
    background: var(--primary-purple);
    color: var(--primary-white);
}

/* 간소화된 카탈로그 섹션 */
.catalog-section {
    padding: 60px 0;
    background: var(--primary-black);
    position: relative;
}

.catalog-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(90deg, transparent 48%, rgba(139, 92, 246, 0.03) 49%, rgba(139, 92, 246, 0.03) 51%, transparent 52%);
    background-size: 40px 40px;
}

.catalog-compact {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(31, 31, 31, 0.8);
    padding: 2.5rem 3rem;
    border-radius: 15px;
    border: 2px solid var(--border-color);
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}

.catalog-compact:hover {
    transform: translateY(-5px);
    border-color: var(--primary-cyan);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
}

.catalog-info h3 {
    font-size: 1.8rem;
    color: var(--primary-cyan);
    margin-bottom: 0.5rem;
}

.catalog-info p {
    color: var(--text-gray);
    font-size: 1rem;
    margin: 0;
}

.catalog-download {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.file-info {
    color: var(--text-gray);
    font-size: 0.9rem;
    opacity: 0.8;
}

.btn-download-compact {
    background: linear-gradient(45deg, #4CAF50, #45a049);
    color: var(--primary-white);
    padding: 12px 25px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 4px 15px rgba(76, 175, 80, 0.3);
    white-space: nowrap;
}

.btn-download-compact:hover {
    background: linear-gradient(45deg, #45a049, #4CAF50);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(76, 175, 80, 0.4);
}

/* 간소화된 연락처 섹션 */
.contact {
    padding: 100px 0;
    background: var(--primary-black);
    position: relative;
}

.contact-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
}

.contact-main {
    max-width: 600px;
    width: 100%;
}

.contact-info-card {
    background: rgba(31, 31, 31, 0.9);
    padding: 3rem;
    border-radius: 25px;
    border: 2px solid var(--border-color);
    text-align: center;
    backdrop-filter: blur(15px);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.4);
    transition: all 0.3s ease;
}

.contact-info-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-cyan);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.contact-header {
    margin: 1.5rem 0;
}

.contact-header h3 {
    font-size: 1.3rem;
    color: var(--primary-cyan);
    margin-bottom: 0.8rem;
}

.contact-phone,
.contact-email {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--primary-purple);
    margin: 0;
    padding: 0.5rem 1rem;
    background: rgba(139, 92, 246, 0.1);
    border-radius: 8px;
    display: inline-block;
    transition: all 0.3s ease;
    cursor: pointer;
    border: 1px solid rgba(139, 92, 246, 0.3);
}

.contact-phone:hover,
.contact-email:hover {
    color: var(--primary-cyan);
    background: rgba(6, 182, 212, 0.1);
    border-color: rgba(6, 182, 212, 0.5);
    transform: scale(1.02);
}

.contact-divider {
    width: 60%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
    margin: 2rem auto;
}