:root {
    --primary-color: #00D9FF;
    --secondary-color: #1a1a2e;
    --accent-color: #FF6B35;
    --text-dark: #1a1a2e;
    --text-light: #666;
    --bg-light: #f5f5f5;
    --bg-white: #ffffff;
    --danger-color: #d32f2f;
    --success-color: #4CAF50;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-hero: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}

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

body {
    font-family: 'NanumBarunGothic', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Sticky Header */
.sticky-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 12px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.sticky-header .logo img {
    height: 35px;
}

.main-nav {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-size: 15px;
    padding: 8px 0;
    border-bottom: 2px solid transparent;
    transition: all 0.3s;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.cta-btn-header {
    background: var(--primary-color);
    color: var(--text-dark);
    padding: 10px 24px;
    border: none;
    border-radius: 4px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
}

.cta-btn-header:hover {
    background: #00C0E6;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 217, 255, 0.3);
}

/* Hero Section */
.hero-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 100vh;
    margin-top: 60px;
}

.hero-left {
    padding: 120px 80px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: var(--gradient-hero);
    color: white;
}

.hero-left h1 {
    font-size: 64px;
    font-weight: bold;
    line-height: 1.2;
    margin-bottom: 30px;
}

.hero-left p {
    font-size: 22px;
    margin-bottom: 40px;
    line-height: 1.8;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--text-dark);
    padding: 16px 36px;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-primary:hover {
    background: #00C0E6;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 217, 255, 0.4);
}

.btn-secondary {
    background: transparent;
    color: white;
    padding: 16px 36px;
    border: 2px solid white;
    border-radius: 4px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.hero-right {
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero-visual {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-gradient {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
}

.hero-product-image {
    max-width: 80%;
    max-height: 80%;
    object-fit: contain;
    position: relative;
    z-index: 1;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 42px;
    font-weight: bold;
    margin-bottom: 15px;
}

.section-header p {
    font-size: 20px;
    color: var(--text-light);
}

/* Threat Section */
.threat-section {
    background: var(--bg-white);
    padding: 100px 20px;
}

.threat-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.threat-card {
    background: #fff8f8;
    border: 3px solid var(--danger-color);
    padding: 40px 30px;
    border-radius: 8px;
    position: relative;
}

.threat-year {
    position: absolute;
    top: -15px;
    left: 30px;
    background: var(--danger-color);
    color: white;
    padding: 6px 20px;
    font-weight: bold;
    border-radius: 4px;
}

.threat-card h3 {
    font-size: 24px;
    margin: 20px 0 15px;
    color: var(--text-dark);
}

.threat-card p {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.6;
}

.threat-stats {
    display: flex;
    gap: 30px;
    margin-top: 25px;
    padding-top: 25px;
    border-top: 2px dashed var(--danger-color);
}

.threat-stat {
    flex: 1;
    text-align: center;
}

.threat-stat .stat-number {
    font-size: 32px;
    font-weight: bold;
    color: var(--danger-color);
    margin-bottom: 8px;
}

.threat-stat .stat-label {
    font-size: 14px;
    color: var(--text-light);
}

/* Solutions Section */
.solutions-section {
    background: linear-gradient(to bottom, var(--bg-light) 0%, var(--bg-white) 100%);
    padding: 100px 20px;
}

.solution-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 50px;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    border: 3px solid var(--text-dark);
    border-radius: 8px;
    overflow: hidden;
}

.solution-tab {
    flex: 1;
    padding: 30px 20px;
    text-align: center;
    border-right: 3px solid var(--text-dark);
    cursor: pointer;
    background: #f5f5f5;
    transition: all 0.3s;
}

.solution-tab:last-child {
    border-right: none;
}

.solution-tab.active {
    background: var(--primary-color);
    color: white;
}

.solution-tab .tab-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.solution-tab h3 {
    font-size: 24px;
    margin-bottom: 8px;
}

.solution-tab p {
    font-size: 14px;
    opacity: 0.8;
}

.solution-showcase {
    max-width: 1200px;
    margin: 0 auto;
}

.solution-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 50px;
    background: var(--bg-white);
    border: 3px solid var(--text-dark);
    border-radius: 8px;
    padding: 50px;
}

.solution-content.hidden {
    display: none;
}

.solution-image {
    background: var(--bg-white);
    border: 3px solid var(--text-dark);
    border-radius: 8px;
    overflow: hidden;
}

.solution-image.hidden {
    display: none;
}

.solution-image img {
    width: 100%;
    height: auto;
    display: block;
}

.solution-info h3 {
    font-size: 32px;
    margin-bottom: 20px;
}

.solution-desc {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 30px;
    line-height: 1.8;
}

.solution-info h4 {
    font-size: 20px;
    margin-top: 30px;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.product-list {
    margin-bottom: 30px;
}

.product-item {
    padding: 15px 0;
    border-bottom: 1px solid #eee;
}

.product-item h5 {
    font-size: 18px;
    margin-bottom: 5px;
    color: var(--text-dark);
}

.product-item p {
    font-size: 14px;
    color: var(--text-light);
}

.feature-list {
    list-style: none;
    margin-bottom: 30px;
}

.feature-list li {
    padding: 12px 0;
    font-size: 16px;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 10px;
}

.feature-list li i {
    color: var(--success-color);
    font-size: 18px;
}

.solution-actions {
    display: flex;
    gap: 15px;
}

.btn-outline {
    background: transparent;
    color: var(--text-dark);
    padding: 14px 32px;
    border: 2px solid var(--text-dark);
    border-radius: 4px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-outline:hover {
    background: var(--text-dark);
    color: white;
}

.solution-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-showcase-img {
    width: 100%;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
}

.product-showcase-img img {
    width: 100%;
    display: block;
}

/* Comparison Table */
.comparison-section {
    margin-top: 60px;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.comparison-section h3 {
    font-size: 32px;
    text-align: center;
    margin-bottom: 30px;
}

.comparison-table-wrapper {
    overflow-x: auto;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-white);
    border: 3px solid var(--text-dark);
    border-radius: 8px;
    overflow: hidden;
}

.comparison-table th,
.comparison-table td {
    border: 2px solid var(--text-dark);
    padding: 20px 15px;
    text-align: center;
}

.comparison-table thead th {
    background: var(--primary-color);
    color: var(--text-dark);
    font-weight: bold;
    font-size: 18px;
}

.comparison-table tbody th {
    background: var(--bg-light);
    font-weight: bold;
    text-align: left;
}

.comparison-table .check {
    font-size: 20px;
    color: var(--success-color);
}

.comparison-table .check.highlight {
    color: var(--primary-color);
    font-size: 24px;
}

/* Case Study Section */
.case-study-section {
    background: var(--secondary-color);
    color: white;
    padding: 100px 20px;
}

.case-study-section h2 {
    font-size: 48px;
    text-align: center;
    margin-bottom: 20px;
}

.section-subtitle {
    font-size: 22px;
    text-align: center;
    margin-bottom: 60px;
    opacity: 0.9;
}

.case-carousel {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 50px;
    max-width: 1200px;
    margin: 0 auto;
}

.case-nav {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.case-nav-item {
    padding: 25px;
    border: 2px solid #555;
    border-radius: 8px;
    background: rgba(255,255,255,0.05);
    cursor: pointer;
    transition: all 0.3s;
}

.case-nav-item:hover {
    background: rgba(255,255,255,0.1);
}

.case-nav-item.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--text-dark);
}

.case-nav-item h4 {
    font-size: 18px;
    margin-bottom: 8px;
}

.case-nav-item p {
    font-size: 14px;
    opacity: 0.8;
}

.case-content-wrapper {
    border: 3px solid #555;
    border-radius: 8px;
    padding: 50px;
    background: rgba(255,255,255,0.05);
}

.case-content {
    display: none;
}

.case-content.active {
    display: block;
}

.case-content h3 {
    font-size: 36px;
    margin-bottom: 25px;
}

.case-quote {
    font-size: 20px;
    line-height: 1.8;
    margin-bottom: 40px;
    font-style: italic;
    opacity: 0.95;
}

.case-results {
    border-top: 2px solid #555;
    padding-top: 30px;
}

.case-results h4 {
    font-size: 22px;
    margin-bottom: 25px;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.result-item {
    text-align: center;
}

.result-number {
    font-size: 42px;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.result-label {
    font-size: 16px;
    opacity: 0.8;
}

/* Stats Banner */
.stats-banner {
    background: var(--gradient-primary);
    color: white;
    padding: 100px 20px;
    text-align: center;
}

.stats-banner h2 {
    font-size: 48px;
    margin-bottom: 20px;
}

.stats-subtitle {
    font-size: 22px;
    margin-bottom: 60px;
    opacity: 0.95;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 50px;
    max-width: 1000px;
    margin: 0 auto;
}

.stat-item {
    text-align: center;
}

.stat-item .stat-number {
    font-size: 56px;
    font-weight: bold;
    margin-bottom: 15px;
}

.stat-item p {
    font-size: 16px;
    opacity: 0.9;
}

/* Awards Section */
.awards-section {
    background: var(--bg-white);
    padding: 100px 20px;
}

.awards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.award-item {
    text-align: center;
    padding: 40px;
    border: 2px solid #eee;
    border-radius: 8px;
    transition: all 0.3s;
}

.award-item:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.award-badge {
    width: 100px;
    height: 100px;
    margin: 0 auto 20px;
    background: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    color: var(--primary-color);
}

.award-item h4 {
    font-size: 18px;
    line-height: 1.6;
}

/* Final CTA */
.final-cta {
    background: var(--gradient-primary);
    color: white;
    padding: 120px 20px;
    text-align: center;
}

.final-cta h2 {
    font-size: 56px;
    margin-bottom: 25px;
}

.cta-subtitle {
    font-size: 24px;
    margin-bottom: 60px;
    opacity: 0.95;
}

.cta-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 700px;
    margin: 0 auto;
}

.cta-card {
    background: rgba(255,255,255,0.1);
    border: 2px solid white;
    border-radius: 8px;
    padding: 50px 30px;
    transition: all 0.3s;
}

.cta-card:hover {
    background: rgba(255,255,255,0.2);
    transform: translateY(-5px);
}

.cta-icon {
    font-size: 56px;
    margin-bottom: 20px;
}

.cta-card h3 {
    font-size: 26px;
    margin-bottom: 15px;
}

.cta-card p {
    font-size: 16px;
    margin-bottom: 25px;
    opacity: 0.9;
}

.btn-cta {
    background: white;
    color: var(--text-dark);
    padding: 14px 32px;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-cta:hover {
    background: var(--primary-color);
    transform: scale(1.05);
}

/* Footer */
.footer {
    background: var(--secondary-color);
    color: white;
    padding: 60px 20px 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 50px;
    margin-bottom: 40px;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.footer-logo img {
    height: 40px;
    margin-bottom: 15px;
    filter: brightness(0) invert(1);
}

.footer-col p {
    font-size: 14px;
    line-height: 1.8;
    opacity: 0.8;
}

.footer-col h4 {
    font-size: 18px;
    margin-bottom: 20px;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    padding: 8px 0;
    font-size: 14px;
    opacity: 0.8;
}

.footer-col ul li a {
    color: white;
    text-decoration: none;
    transition: all 0.3s;
}

.footer-col ul li a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid #444;
    padding-top: 30px;
    text-align: center;
    max-width: 1200px;
    margin: 0 auto;
}

.footer-bottom p {
    font-size: 14px;
    opacity: 0.7;
}

/* Responsive */
@media (max-width: 1200px) {
    .hero-left h1 {
        font-size: 52px;
    }
    
    .solution-content {
        grid-template-columns: 1fr;
    }
    
    .case-carousel {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .sticky-header {
        padding: 12px 20px;
    }
    
    .main-nav {
        display: none;
    }
    
    .hero-split {
        grid-template-columns: 1fr;
    }
    
    .hero-left {
        padding: 80px 40px;
    }
    
    .hero-left h1 {
        font-size: 42px;
    }
    
    .threat-grid {
        grid-template-columns: 1fr;
    }
    
    .solution-tabs {
        flex-direction: row;
        border-width: 2px;
        margin-bottom: 20px;
    }

    .solution-tab {
        padding: 12px 8px;
        border-right: 2px solid var(--text-dark);
        border-bottom: none;
    }

    .solution-tab:last-child {
        border-right: none;
    }

    .solution-tab .tab-icon {
        font-size: 24px;
        margin-bottom: 8px;
    }

    .solution-tab h3 {
        font-size: 14px;
        margin-bottom: 4px;
    }

    .solution-tab p {
        font-size: 11px;
    }

    .solution-image {
        border-width: 2px;
    }

    .solution-image img {
        width: 100%;
        height: auto;
    }
    
    .comparison-table {
        font-size: 14px;
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: 10px 8px;
    }
    
    .results-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .awards-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

/* 이미지 전체화면 모달 */
.image-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 10000;
    justify-content: center;
    align-items: center;
}

.image-modal.active {
    display: flex;
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    color: white;
    font-size: 32px;
    cursor: pointer;
    z-index: 10001;
    padding: 10px;
}

.modal-image {
    max-width: 95%;
    max-height: 90vh;
    object-fit: contain;
}

/* 모바일에서 이미지 클릭 힌트 */
@media (max-width: 768px) {
    .solution-image {
        position: relative;
        cursor: pointer;
    }

    .solution-image::after {
        content: "탭하여 크게 보기";
        position: absolute;
        bottom: 10px;
        right: 10px;
        background: rgba(0, 0, 0, 0.7);
        color: white;
        padding: 6px 12px;
        border-radius: 4px;
        font-size: 12px;
    }
}

/* Contact Section */
.contact-section {
    background: var(--bg-light);
    padding: 100px 20px;
}

.contact-content {
    max-width: 1000px;
    margin: 0 auto;
}

.contact-map-wrapper {
    background: var(--bg-white);
    border: 3px solid var(--text-dark);
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 40px;
}

.contact-tabs {
    display: flex;
    border-bottom: 3px solid var(--text-dark);
}

.contact-tab {
    flex: 1;
    padding: 18px 20px;
    background: var(--bg-light);
    border: none;
    border-right: 3px solid var(--text-dark);
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
}

.contact-tab:last-child {
    border-right: none;
}

.contact-tab.active {
    background: var(--primary-color);
    color: var(--text-dark);
}

.contact-tab:hover:not(.active) {
    background: #e0e0e0;
}

.contact-map-container {
    position: relative;
    height: 400px;
}

.contact-map {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: none;
}

.contact-map.active {
    display: block;
}

.contact-address {
    padding: 20px 25px;
    background: var(--bg-white);
    border-top: 2px solid #eee;
}

.address-item {
    display: none;
    font-size: 16px;
    color: var(--text-dark);
    margin: 0;
}

.address-item.active {
    display: block;
}

.address-item i {
    color: var(--primary-color);
    margin-right: 10px;
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: 50px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.contact-info-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 18px;
}

.contact-info-item i {
    font-size: 24px;
    color: var(--primary-color);
}

.contact-info-item a {
    color: var(--text-dark);
    text-decoration: none;
    transition: color 0.3s;
}

.contact-info-item a:hover {
    color: var(--primary-color);
}

.contact-download {
    text-align: center;
}

.btn-download-contact {
    display: inline-block;
    background: var(--primary-color);
    color: var(--text-dark);
    padding: 16px 40px;
    border-radius: 4px;
    font-size: 18px;
    font-weight: bold;
    text-decoration: none;
    transition: all 0.3s;
}

.btn-download-contact:hover {
    background: #00C0E6;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 217, 255, 0.4);
}

.btn-download-contact i {
    margin-right: 10px;
}

@media (max-width: 768px) {
    .contact-section {
        padding: 60px 20px;
    }

    .contact-map-container {
        height: 300px;
    }

    .contact-info {
        flex-direction: column;
        gap: 20px;
        align-items: center;
    }

    .contact-info-item {
        font-size: 16px;
    }

    .btn-download-contact {
        padding: 14px 30px;
        font-size: 16px;
    }
}