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

:root {
    --primary-color: #1a56db;
    --secondary-color: #0f172a;
    --accent-color: #3b82f6;
    --text-color: #1e293b;
    --text-light: #64748b;
    --bg-light: #f8fafc;
    --white: #ffffff;
    --border-color: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
}

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

/* 헤더 및 네비게이션 */
.header {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    padding: 1rem 0;
}

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

.nav-brand h1 {
    color: var(--primary-color);
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.logo-img {
    height: 40px;
    width: auto;
    display: block;
}

.nav-brand a {
    text-decoration: none;
    display: inline-block;
    transition: opacity 0.3s;
}

.nav-brand a:hover {
    opacity: 0.8;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

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

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

.nav-menu a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    transition: all 0.3s;
}

/* 히어로 섹션 */
.hero {
    position: relative;
    height: 600px;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    display: flex;
    align-items: center;
    justify-content: flex-start;
    color: var(--white);
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: left;
    max-width: 800px;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* 버튼 */
.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--white);
    color: var(--primary-color);
}

.btn-primary:hover {
    background-color: var(--bg-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    background-color: var(--white);
    color: var(--primary-color);
}

/* 섹션 공통 */
section {
    padding: 5rem 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--secondary-color);
}

/* 서비스 섹션 */
.services {
    background-color: var(--bg-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background-color: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.service-icon-wrapper {
    width: 100%;
    height: 180px;
    background: #f8fafc;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    padding: 1rem;
    overflow: hidden;
    flex-shrink: 0;
    border-bottom: 1px solid var(--border-color);
}

.service-icon-wrapper svg {
    width: 40px;
    height: 40px;
}

.service-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
    padding: 1.5rem 1.5rem 0.5rem;
}

.service-card p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    padding: 0 1.5rem;
    line-height: 1.7;
}

.service-card .service-link {
    padding: 0 1.5rem 1.5rem;
    margin-top: auto;
}

.section-subtitle {
    text-align: center;
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.service-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
}

.service-link:hover {
    color: var(--accent-color);
}

/* 회사 소개 섹션 */
.about {
    background-color: var(--white);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-text {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

/* 연락처 섹션 */
.contact {
    background-color: var(--bg-light);
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    max-width: 800px;
    margin: 0 auto;
}

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

.contact-item h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.contact-item p {
    color: var(--text-light);
    font-size: 1.1rem;
}

.contact-item a {
    color: var(--primary-color);
    text-decoration: none;
}

.contact-item a:hover {
    text-decoration: underline;
}

/* 페이지 헤더 */
.page-header {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    color: var(--white);
    padding: 4rem 0;
    text-align: center;
}

.page-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.page-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    max-width: 800px;
    margin: 0 auto;
}

/* 솔루션 페이지 */
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.solution-card {
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s;
}

.solution-logo {
    margin-bottom: 1.5rem;
    text-align: center;
    padding: 2rem;
    background-color: var(--bg-light);
    border-radius: 12px;
    min-height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-image {
    max-width: 100%;
    max-height: 100px;
    object-fit: contain;
    filter: grayscale(0%);
    transition: all 0.3s;
}

.solution-card:hover .logo-image {
    transform: scale(1.05);
}

.solution-description {
    text-align: center;
    color: var(--text-light);
    font-size: 1rem;
    margin-top: 1rem;
}

.solution-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.solution-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.solution-header h3 {
    font-size: 1.75rem;
    color: var(--secondary-color);
}

.solution-badge {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.solution-content p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

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

.solution-features li {
    padding: 0.5rem 0;
    color: var(--text-color);
    position: relative;
    padding-left: 1.5rem;
}

.solution-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* 컨설팅 페이지 */
.consulting-intro {
    max-width: 900px;
    margin: 0 auto 4rem;
    text-align: center;
}

.consulting-intro h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
}

.consulting-intro p {
    font-size: 1.1rem;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.consulting-services {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.consulting-card {
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s;
}

.consulting-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.consulting-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(26, 86, 219, 0.1) 0%, rgba(59, 130, 246, 0.1) 100%);
    border-radius: 12px;
    padding: 1rem;
    transition: all 0.3s;
}

.consulting-icon svg {
    width: 32px;
    height: 32px;
}

.consulting-card:hover .consulting-icon {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    color: var(--white);
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(26, 86, 219, 0.3);
}

.consulting-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.consulting-card p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.consulting-card ul {
    list-style: none;
}

.consulting-card ul li {
    padding: 0.5rem 0;
    color: var(--text-color);
    position: relative;
    padding-left: 1.5rem;
}

.consulting-card ul li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.2rem;
}

.consulting-process {
    margin-top: 4rem;
}

.consulting-process h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 3rem;
    color: var(--secondary-color);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.process-step {
    text-align: center;
    padding: 1.5rem;
    background-color: var(--bg-light);
    border-radius: 12px;
}

.step-number {
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1rem;
}

.process-step h4 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--secondary-color);
}

.process-step p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* 보안 관제 페이지 */
.monitoring-intro {
    max-width: 900px;
    margin: 0 auto 4rem;
    text-align: center;
}

.monitoring-intro h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
}

.monitoring-intro p {
    font-size: 1.1rem;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.partnership-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.partnership-card {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    color: var(--white);
    padding: 2rem;
    border-radius: 12px;
}

.partnership-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.partnership-card p {
    line-height: 1.8;
    opacity: 0.95;
}

.monitoring-services {
    margin-bottom: 4rem;
}

.monitoring-services h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 3rem;
    color: var(--secondary-color);
}

.monitoring-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.monitoring-card {
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s;
}

.monitoring-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.monitoring-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.monitoring-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.monitoring-card p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.monitoring-card ul {
    list-style: none;
}

.monitoring-card ul li {
    padding: 0.5rem 0;
    color: var(--text-color);
    position: relative;
    padding-left: 1.5rem;
}

.monitoring-card ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.monitoring-benefits {
    margin-top: 4rem;
}

.monitoring-benefits h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 3rem;
    color: var(--secondary-color);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.benefit-item {
    background-color: var(--bg-light);
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
}

.benefit-item h4 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--secondary-color);
}

.benefit-item p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* 문의 섹션 */
.inquiry {
    background-color: var(--bg-light);
    text-align: center;
    padding: 4rem 0;
}

.inquiry-content h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.inquiry-content p {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.inquiry-contact {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 12px;
    max-width: 600px;
    margin: 0 auto;
    box-shadow: var(--shadow);
}

.inquiry-contact p {
    margin-bottom: 1rem;
    color: var(--text-color);
}

.inquiry-contact a {
    color: var(--primary-color);
    text-decoration: none;
}

.inquiry-contact a:hover {
    text-decoration: underline;
}

/* CTA 섹션 */
.cta-section {
    background-color: var(--primary-color);
    padding: 4rem 0;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
}

.btn-cta {
    background-color: var(--white);
    color: var(--primary-color);
    border: 2px solid var(--accent-color);
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.btn-cta:hover {
    background-color: var(--bg-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-large {
    padding: 1rem 3rem;
    font-size: 1.1rem;
}

/* 푸터 */
.footer {
    background-color: #1a1a1a;
    color: var(--white);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-column h3 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    color: var(--white);
}

.footer-logo {
    height: 40px;
    width: auto;
    margin-bottom: 1rem;
}

.footer-description {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.social-icons {
    display: flex;
    gap: 1rem;
}

.social-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-decoration: none;
    transition: all 0.3s;
    font-weight: 600;
}

.social-icon:hover {
    background-color: var(--primary-color);
    transform: translateY(-2px);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: var(--primary-color);
}

.footer-contact {
    list-style: none;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, 0.8);
}

.footer-contact li svg {
    flex-shrink: 0;
    margin-top: 2px;
}

.footer-contact a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

.powered-by {
    font-size: 0.85rem;
}

/* Talk with Us 버튼 */
.talk-button {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: #000000;
    color: var(--white);
    padding: 1rem 1.5rem;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    z-index: 999;
    transition: all 0.3s;
    font-weight: 600;
}

.talk-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4);
    background-color: #1a1a1a;
}

.talk-button svg {
    flex-shrink: 0;
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: var(--white);
        flex-direction: column;
        padding: 2rem;
        box-shadow: var(--shadow-lg);
        transition: left 0.3s;
        z-index: 999;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        margin: 1rem 0;
    }

    .nav-menu a {
        font-size: 1.2rem;
    }

    .hero {
        height: 500px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .section-title {
        font-size: 2rem;
    }

    .page-title {
        font-size: 2rem;
    }

    .services-grid,
    .solutions-grid,
    .consulting-services,
    .monitoring-grid {
        grid-template-columns: 1fr;
    }

    .contact-info {
        grid-template-columns: 1fr;
    }

    .partnership-info {
        grid-template-columns: 1fr;
    }

    .process-steps {
        grid-template-columns: 1fr;
    }

    .benefits-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .talk-button {
        bottom: 20px;
        right: 20px;
        padding: 0.75rem 1.25rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero-title {
        font-size: 1.75rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .page-title {
        font-size: 1.75rem;
    }

    section {
        padding: 3rem 0;
    }

    .service-card,
    .solution-card,
    .consulting-card,
    .monitoring-card {
        padding: 1.5rem;
    }
}