/* 글로벌 스타일 */
:root {
    --primary-color: #3b82f6;
    --secondary-color: #1e40af;
    --light-color: #f3f4f6;
    --dark-color: #1f2937;
    --text-color: #374151;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Noto Sans KR', 'Arial', sans-serif;
}

body {
    color: var(--text-color);
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 5px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
}

.section {
    padding: 80px 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 40px;
    text-align: center;
}

/* 헤더 스타일 */
header {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    margin: 0 15px;
    color: var(--primary-color);
}

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

.nav-menu li {
    margin: 0 15px;
}

.nav-menu a {
    font-weight: 500;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

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

.language-selector {
    display: flex;
    align-items: center;
}

.language-selector select {
    padding: 5px 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    background-color: white;
}

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}


/* 메인 배너 스타일 */
.hero {
    height: 100vh;
    background-image: linear-gradient(rgba(0, 0, 0, 0.0), rgba(0, 0, 0, 0.0)), url('../img/main_batang.png');
    background-size: cover;
    background-position: center;
    color: white;
    display: flex;
    align-items: center;
    text-align: center;
    position: relative;
}

.hero-content {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero-title {
    font-size: 3.0rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.8rem;
    margin-bottom: 40px;
    opacity: 0.95;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

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

.hero-buttons .btn {
    background-color: rgba(59, 130, 246, 0.9);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.hero-buttons .btn:hover {
    background-color: #1e40af;
    transform: translateY(-2px);
}

/* 두 번째 버튼을 조금 다르게 스타일링 */
.hero-buttons .btn:nth-child(2) {
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.7);
}

.hero-buttons .btn:nth-child(2):hover {
    background-color: rgba(255, 255, 255, 0.3);
}

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

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.service-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.service-content {
    padding: 25px;
}

.service-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.service-description {
    margin-bottom: 20px;
    color: #6b7280;
}

/* 소개 섹션 스타일 */
.about {
    display: flex;
    align-items: center;
    gap: 50px;
}

.about-image {
    flex: 1;
}

.about-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.about-content {
    flex: 1;
}

.about-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 25px;
}

.about-description {
    margin-bottom: 30px;
    font-size: 1.1rem;
    line-height: 1.8;
}

/* 프로젝트 및 고객사 스타일 */
.projects {
    background-color: var(--light-color);
    overflow: hidden;
}

.projects-slider {
    display: flex;
    width: max-content;
    animation: slide 30s linear infinite;
}

.project-item {
    width: 200px;
    height: 100px;
    margin: 0 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

@keyframes slide {
    0% { transform: translateX(0); }
    100% { transform: translateX(-100%); }
}

/* 뉴스 및 공지사항 스타일 */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.news-card {
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.news-card:hover {
    transform: translateY(-5px);
}

.news-image {
    height: 300px;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.news-card:hover .news-image img {
    transform: scale(1.05);
}

.news-content {
    padding: 25px;
}

.news-date {
    color: #6b7280;
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.news-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.news-excerpt {
    color: #6b7280;
    margin-bottom: 15px;
}

/* 푸터 스타일 */
footer {
    background-color: var(--dark-color);
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 20px;
}

.footer-contact {
    margin-bottom: 20px;
}

.footer-contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.footer-contact-item i {
    margin-right: 10px;
    font-size: 1.2rem;
}

.footer-links h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    font-weight: 600;
}

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

.footer-links li {
    margin-bottom: 10px;
}

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

.footer-social {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: background-color 0.3s ease;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
}

/* 반응형 스타일 */
@media (max-width: 992px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: white;
        flex-direction: column;
        box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu li {
        margin: 0;
        padding: 15px 20px;
        border-bottom: 1px solid #eee;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .about {
        flex-direction: column;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.3rem;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero {
        height: 80vh;
    }
}