@charset "UTF-8";

/* CSS 변수 정의 */
:root {
    --primary-color: #0054a6;
    --primary-dark: #003d7a;
    --accent-color: #008299;
    --text-color: #333;
    --text-light: #666;
    --text-muted: #888;
    --bg-light: #f9f9f9;
    --bg-dark: #333;
    --border-color: #ddd;
    --border-light: #eee;
    --white: #fff;
    --black: #222;
    --shadow: 0 5px 15px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 30px rgba(0,0,0,0.1);
    --transition: 0.3s ease;
}

/* 부드러운 스크롤 */
html {
    scroll-behavior: smooth;
}

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

body {
    font-family: 'Noto Sans KR', 'Malgun Gothic', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
}
ul, li {
    list-style: none;
}
a {
    text-decoration: none;
    color: inherit;
}

/* 접근성: 키보드 포커스 스타일 */
a:focus,
button:focus,
input:focus,
textarea:focus,
select:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

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

/* 헤더 영역 */
header {
    border-bottom: 1px solid var(--border-color);
    background: var(--white);
    position: relative; 
    z-index: 999; 
}
.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}
.logo {
    font-size: 28px;
    font-weight: bold;
    color: var(--accent-color);
}
.gnb {
    display: flex;
}

.gnb > li {
    margin-left: 25px;
    position: relative;
    padding: 15px 5px; /* 상하 패딩 추가로 클릭 영역 확대 */
    top: 0;
}

.gnb > li > a {
    font-size: 17px;
    font-weight: 500;
    color: var(--black);
    transition: color var(--transition);
    display: block;
    padding: 5px 10px;
}

.gnb > li:hover > a,
.gnb > li > a:focus {
    color: var(--primary-color);
}

/* --- 드롭다운 서브메뉴 스타일 시작 --- */
.submenu {
    display: none;
    position: absolute;
    top: 60px; 
    left: 50%;
    transform: translateX(-50%);
    background: var(--white);
    min-width: 140px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
    border-top: 3px solid var(--primary-color);
    padding: 10px 0;
    z-index: 1000;
}

.gnb > li:hover .submenu {
    display: block;
}

.submenu li {
    margin: 0;
    padding: 0;
    text-align: center;
}

.submenu li a {
    display: block;
    padding: 10px 15px;
    font-size: 14px;
    color: var(--text-light);
    border-bottom: 1px solid var(--bg-light);
    white-space: nowrap;
    transition: all var(--transition);
}

.submenu li a:hover,
.submenu li a:focus {
    background: #f4f7fa;
    color: var(--primary-color);
    font-weight: bold;
}
/* --- 드롭다운 서브메뉴 스타일 끝 --- */



/* About & Quick Links */
.about-quick {
    background-color: var(--bg-light);
    padding: 60px 0;
}

.aq-wrapper {
    display: flex;
    gap: 40px;
}

.about-box {
    flex: 2;
}

.about-box h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: var(--primary-color);
}
.about-box p {
    color: #555;
    margin-bottom: 20px;
    line-height: 1.8;
}
.btn-more {
    display: inline-block;
    padding: 8px 20px;
    border: 1px solid #aaa;
    color: #555;
    font-size: 14px;
    transition: all var(--transition);
}

.btn-more:hover,
.btn-more:focus {
    background: var(--bg-dark);
    color: var(--white);
    border-color: var(--bg-dark);
}

.quick-links {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 15px;
}
.quick-btn {
    background: var(--white);
    border: 1px solid var(--border-color);
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: bold;
    color: #444;
    transition: all var(--transition);
}

.quick-btn:hover,
.quick-btn:focus {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

/* 푸터 영역 */
footer {
    background: var(--bg-dark);
    color: #aaa;
    padding: 40px 0;
    font-size: 13px;
}

.footer-info p {
    margin-bottom: 8px;
}

.footer-info span {
    margin-right: 15px;
}

.copyright {
    margin-top: 20px;
    color: var(--text-muted);
}

/* 슬라이더 스타일 */
.slider {
    position: relative;
    overflow: hidden;
    background: #f0f4f8;
}

.slide-container {
    position: relative;
    overflow: hidden;
    height: 460px;
}

.slide-wrapper {
    display: flex;
    height: 100%;
}

.slide {
    flex-shrink: 0;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.slide-1 h2 {
    color: #fff;
    
}
.slide-1 p {
    color: #fff;
    
}

/* 슬라이드 2 */
.slide-2 h2 {
    color: #ffffff;
    
}
.slide-2 p {
    color: #ffffcc;
    
}

/* 슬라이드 3 */
.slide-3 h2 {
    color: #ffffcc;
   
}
.slide-3 p {
    color: #ffffcc;
   
}

.slide h2 {
    font-size: 3rem;
    margin-bottom: 20px;
  
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.slide p {
    font-size: 1.2rem;
    
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
}

/* 화살표 버튼 */
.slide-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.3);
    color: #fff;
    border: none;
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
    cursor: pointer;
    border-radius: 50%;
    transition: background 0.3s;
    z-index: 10;
}

.slide-arrow:hover {
    background: rgba(0, 0, 0, 0.5);
}

.slide-arrow.prev {
    left: 20px;
}

.slide-arrow.next {
    right: 20px;
}

/* 네비게이션 점 */
.slide-nav {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.3);
    cursor: pointer;
    transition: background 0.3s;
}

.dot.active {
    background: #ffffff;
}

/* 서브페이지 공통 스타일 */
.page-header {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: var(--white);
    padding: 80px 0;
    text-align: center;
}

.page-header h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.page-header p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
}

/* 서브 네비게이션 */
.sub-nav {
    background: var(--bg-light);
    border-bottom: 1px solid var(--border-color);
}

.sub-nav ul {
    display: flex;
    justify-content: center;
    gap: 40px;
    padding: 20px 0;
}

.sub-nav a {
    color: var(--text-light);
    font-weight: 500;
    transition: color var(--transition);
}

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

/* 페이지 콘텐츠 */
.page-content {
    padding: 60px 0;
}

.page-content h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--text-color);
}

.page-content p {
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 15px;
}

/* 연혁 타임라인 */
.history-timeline {
    max-width: 800px;
    margin: 0 auto;
}

.history-item {
    display: flex;
    gap: 40px;
    padding: 30px 0;
    border-bottom: 1px solid var(--border-light);
}

.history-item .year {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--primary-color);
    min-width: 100px;
}

/* 오시는길 */
.location-info {
    display: flex;
    gap: 40px;
}

.map-area {
    flex: 1;
}

.map-placeholder {
    background: var(--border-light);
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
}

.address-info {
    flex: 1;
}

.address-info h3 {
    margin-top: 20px;
}

/* 홍보자료 */
.pr-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.pr-item {
    background: var(--bg-light);
    padding: 30px;
    border-radius: 10px;
}

.pr-item h4 {
    margin-bottom: 10px;
    color: var(--text-color);
}

.btn-download {
    display: inline-block;
    margin-top: 15px;
    padding: 10px 20px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 5px;
    transition: background var(--transition);
}

.btn-download:hover {
    background: var(--primary-dark);
}

/* 자료실 테이블 */
.resource-table {
    width: 100%;
    border-collapse: collapse;
}

.resource-table th,
.resource-table td {
    padding: 15px;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
}

.resource-table th {
    background: var(--bg-light);
    font-weight: 600;
}

.resource-table a {
    color: var(--primary-color);
}

/* 문의 폼 */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.btn-submit {
    width: 100%;
    padding: 15px;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 5px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: background var(--transition);
}

.btn-submit:hover {
    background: var(--primary-dark);
}

.tech-list {
    padding-left: 20px;
}

.tech-list li {
    margin-bottom: 10px;
    color: var(--text-light);
    list-style: disc;
}
/* 서브페이지 비즈니스 그리드 */
.page-content .biz-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    margin-top: 40px;
}

.page-content .biz-item {
    flex: 0 0 calc(33.333% - 20px);
    background: var(--bg-light);
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    border: 1px solid var(--border-light);
    transition: all var(--transition);
}

.page-content .biz-item:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.page-content .biz-icon {
    width: 80px;
    height: 80px;
    background: #f4f7fa;
    border-radius: 50%;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
}

.page-content .biz-item h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

.page-content .biz-item p {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.6;
}

/* 비즈니스 영역 */
.business {
    padding: 60px 0;
    text-align: center;
}

.section-title {
    font-size: 32px;
    color: var(--black);
    margin-bottom: 10px;
}
.section-desc {
    color: var(--text-light);
    margin-bottom: 50px;
    font-size: 18px;
}

/* business 항목 내 p 텍스트 */
.business .biz-item p {
    font-size: 12px;
}
/* business 아이콘 크기 */
.business .biz-icon {
    font-size: 24px;
}

.biz-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}
.biz-item {
    flex: 0 0 calc(20% - 16px);
    border: 1px solid var(--border-light);
    padding: 30px 15px;
    transition: all var(--transition);
}

.biz-item:hover,
.biz-item:focus-within {
    box-shadow: var(--shadow);
    border-color: var(--primary-color);
}


/* 반응형 처리 */
@media (max-width: 1024px) {
    .biz-item {
        flex: 0 0 calc(33.333% - 14px);
    }
    .page-content .biz-item {
        flex: 0 0 calc(50% - 15px);
    }
}

@media (max-width: 768px) {
    .header-inner { flex-direction: column; height: auto; padding: 15px 0; }
    .gnb { margin-top: 15px; flex-wrap: wrap; justify-content: center; }
    .gnb > li { 
        margin: 0 10px; 
        text-align: center;
    }
    .submenu { 
        position: static; 
        transform: none; 
        box-shadow: none; 
        border: 1px solid var(--border-color); 
        width: 100%; 
        margin-top: 10px;
        left: 0;
    }
    .submenu li { 
        text-align: center; 
        width: 100%;
    }
    .submenu li a { 
        display: block; 
        text-align: center; 
        padding: 10px;
        width: 100%;
    }
    .biz-item { flex: 0 0 calc(50% - 10px); }
    .aq-wrapper { flex-direction: column; }
    .location-info { flex-direction: column; }
    .sub-nav ul { flex-wrap: wrap; gap: 20px; }
    .page-header h2 { font-size: 1.8rem; }
    .page-content .biz-item { flex: 0 0 calc(50% - 15px); }
    
    /* 슬라이더 텍스트 크기 조정 */
    .slide h2 { font-size: 2rem; }
    .slide p { font-size: 1rem; }
}

@media (max-width: 480px) {
    .biz-item { flex: 0 0 100%; }
    .page-content .biz-item { flex: 0 0 100%; }
    
    /* 모바일에서 슬라이더 텍스트 더 작게 */
    .slide h2 { font-size: 1.5rem; }
    .slide p { font-size: 0.9rem; }
}

/* ========================================
   프린트 스타일
   ======================================== */
@media print {
    header,
    footer,
    .slider,
    .slide-nav,
    .slide-arrow,
    .sub-nav {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        color: #000;
        background: #fff;
    }
    
    .container {
        max-width: 100%;
        padding: 0;
    }
    
    a {
        text-decoration: underline;
        color: #000;
    }
    
    .page-header {
        background: none !important;
        color: #000;
        padding: 20px 0;
    }
    
    .page-header h2 {
        color: #000;
    }
    
    .page-content {
        padding: 20px 0;
    }
}

/* ========================================
   스킵 네비게이션 (접근성)
   ======================================== */
.skip-nav {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--primary-color);
    color: var(--white);
    padding: 10px 20px;
    z-index: 9999;
    transition: top var(--transition);
}

.skip-nav:focus {
    top: 0;
}