/* ==========================================
   KSEI 심포지움 - Figma 디자인 재현
   ========================================== */

/* CSS 변수 */
:root {
    --primary-dark: #0a1628;
    --accent-orange: #FFA702;
    --white: #ffffff;
    --cream: #F5F3EE;
    --dark-card: rgba(26, 35, 50, 0.6);
    --text-gray: rgba(255, 255, 255, 0.7);
}

/* 기본 스타일 */
* { margin:0; padding:0; box-sizing:border-box; }
html, body { width:100%; }
body { 
    font-family: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    line-height:1.6; 
    color:var(--white); 
    background: #000 url('../img/2025symposium2_bg.png') center top / cover no-repeat fixed;
    /* 또는 background: url('../images/bg-main.jpg') center top / cover no-repeat fixed; */
    letter-spacing: -0.3px;
}

/* default.css 덮어쓰기 */
#wrapper { 
    min-width:auto !important; 
    min-height:100vh; 
    display:flex; 
    flex-direction:column; 
    width:100% !important; 
    max-width:100% !important; 
}

#container { 
    width:100% !important; 
    max-width:100% !important; 
    float:none !important; 
    margin:0 !important; 
}

.container { 
    max-width:1200px; 
    width:100%; 
    margin:0 auto; 
    padding:0 24px; 
    box-sizing:border-box; 
}

/* ==========================================
   헤더 - 새로운 HTML 구조 기반
   ========================================== */

/* HEADER BASE */
/* 기본 헤더 스타일: sticky 위치, 배경, z-index 설정 */
#header { 
    background: rgba(0, 0, 0, 0.6);
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%; 
    max-width: 100%;
    padding: 20px 0;
}

/* 헤더 컨테이너: 최대 너비 제한, 중앙 정렬 */
#header .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 헤더 내부: flex 레이아웃, 로고와 nav-wrapper 사이 공간 분배 */
.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

/* 로고: 고정 크기, flex-shrink 방지 */
.logo { 
    margin: 0;
    flex-shrink: 0;
}

.logo a { 
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--white);
    transition: all 0.3s ease;
}

.logo a:hover {
    color: var(--accent-orange);
}

.logo a span {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.5px;
    white-space: nowrap;
    line-height: 1.2;
    color: inherit;
}

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

/* HAMBURGER */
/* 체크박스 숨김: 실제로는 보이지 않지만 label 클릭으로 제어 */
.nav-toggle {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

/* 햄버거 라벨: Remix Icon 사용, PC에서는 숨김 */
.nav-toggle-label {
    display: none;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    cursor: pointer;
    color: var(--white);
    font-size: 24px;
    z-index: 1001;
    transition: color 0.3s ease;
}

.nav-toggle-label:hover {
    color: var(--accent-orange);
}

/* Remix Icon: 기본적으로 메뉴 아이콘만 표시 */
.nav-toggle-label i {
    position: absolute;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

/* 메뉴 아이콘: 기본 표시 */
.nav-toggle-label .ri-menu-line {
    opacity: 1;
    transform: scale(1);
}

/* 닫기 아이콘: 기본 숨김 */
.nav-toggle-label .ri-close-line {
    opacity: 0;
    transform: scale(0.8);
}

/* 체크박스 체크 시: 메뉴 아이콘 숨김, 닫기 아이콘 표시 */
#nav-toggle:checked ~ .nav-toggle-label .ri-menu-line {
    opacity: 0;
    transform: scale(0.8);
}

#nav-toggle:checked ~ .nav-toggle-label .ri-close-line {
    opacity: 1;
    transform: scale(1);
}

/* NAV WRAPPER - DESKTOP LAYOUT */
/* 데스크톱: flex 컨테이너로 GNB(중앙)와 유틸(우측) 배치 */
.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex: 1;
    gap: 24px;
}

/* GNB - 데스크톱: 중앙 정렬 */
#gnb { 
    flex: 1;
    display: flex;
    justify-content: center;
}

#gnb ul { 
    list-style: none; 
    display: flex; 
    gap: 48px;
    margin: 0;
    padding: 0;
}

#gnb a { 
    display: block;
    text-decoration: none; 
    color: var(--white); 
    font-weight: 500;
    font-size: 15px;
    transition: color 0.3s;
    letter-spacing: -0.3px;
}

#gnb a:hover { 
    color: var(--accent-orange);
}

/* 헤더 유틸 - 데스크톱: 우측 고정 */
.header-util { 
    display: flex; 
    align-items: center; 
    gap: 12px; 
    font-size: 14px;
    flex-shrink: 0;
}

.header-util .member-name {
    color: var(--white); 
    font-weight: 500;
}

.header-util .btn-util { 
    color: var(--white); 
    text-decoration: none; 
    transition: color 0.3s;
    font-weight: 400;
}

.header-util .btn-util:hover { 
    color: var(--accent-orange); 
}

.header-util .btn-official {
    color: var(--white);
    text-decoration: none;
    transition: color 0.3s;
    font-weight: 400;
}

.header-util .btn-official:hover {
    color: var(--accent-orange);
}

.header-util .divider { 
    color: rgba(255, 255, 255, 0.3); 
}

/* ==========================================
   컨텐츠
   ========================================== */
#content { 
    flex:1; 
    padding:0;  
    width:100%; 
    min-height: calc(100vh - 200px); /* 푸터 고려 */
}

/* 서브페이지용 컨테이너: 상단 여백 확보 */
#content > .container {
    padding-top: 60px;
    padding-bottom: 80px;
}

/* ==========================================
   히어로 섹션 - Figma 디자인
   ========================================== */
.hero-section {
    position: relative;
    width: 100%;
    min-height: 600px;  /* 100vh → 600px */
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    padding: 100px 24px 80px;
}

.hero-content {
    max-width: 900px;
    width: 100%;
}

.hero-subtitle-top {
    font-size: 36px;
    font-weight: 400;
    margin: 0 0 32px;
    letter-spacing: 0.5px;
}

.hero-title {
    font-size: 64px;
    font-weight: 700;
    color: var(--accent-orange);
    margin: 0 0 20px;
    line-height: 1.2;
    letter-spacing: -1.5px;
}

.hero-subtitle-ko {
    font-size: 26px;
    font-weight: 500;
    color: var(--accent-orange);
    margin: 0 0 40px;
    letter-spacing: 0.5px;
}

.hero-description {
    margin: 0 0 40px;
}

.hero-description p {
    font-size: 20px;
    font-weight: 400;
    margin: 4px 0;
    line-height: 1.6;
    letter-spacing: 0.3px;
}

.hero-divider {
    width: 80px;
    height: 1px;
    background: rgba(255, 255, 255, 0.3);
    margin: 0 auto 40px;
}

.hero-info {
    margin: 0 0 48px;
}

.hero-info p {
    font-size: 16px;
    font-weight: 400;
    margin: 8px 0;
    line-height: 1.6;
    letter-spacing: 0.2px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.hero-logo {
    height: 32px;
    width: auto;
    max-width: 200px;
    object-fit: contain;
    vertical-align: middle;
}

.hero-cta-btn {
    display: inline-block;
    padding: 14px 80px;
    background: #000000;
    color: var(--white);
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    transition: all 0.3s ease;
    letter-spacing: 0.5px;
}

.hero-cta-btn:hover {
    background: rgba(0, 0, 0, 0.8);
    transform: translateY(-2px);
}

/* 히어로 퀵메뉴 */
.hero-quick-menu {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-top: 48px;
}

.quick-menu-item {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    color: var(--white);
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    transition: all 0.3s ease;
    letter-spacing: 0.3px;
    min-width: 120px;
    text-align: center;
}

.quick-menu-item:hover {
    background: rgba(255, 167, 2, 0.2);
    border-color: var(--accent-orange);
    color: var(--accent-orange);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 167, 2, 0.3);
}

/* ==========================================
   회장 인사말 섹션
   ========================================== */
.greeting-section {
    position: relative;
    width: 100%;
    padding: 80px 0;
    background: transparent;
    color: var(--white);
}

.greeting-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 24px;
}

.greeting-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--white);
    text-align: center;
    margin: 0 0 48px;
    letter-spacing: -0.5px;
    padding-bottom: 24px;
    border-bottom: 2px solid rgba(255, 255, 255, 0.2);
}

.greeting-body {
    margin-bottom: 48px;
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.9);
}

.greeting-text {
    font-size: 17px;
    line-height: 1.9;
    margin-bottom: 24px;
    letter-spacing: -0.2px;
    color: rgba(255, 255, 255, 0.9);
}

.greeting-text:last-of-type {
    margin-bottom: 0;
}

.greeting-text strong {
    font-weight: 600;
    color: var(--white);
}

.greeting-signature {
    text-align: right;
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.greeting-date,
.greeting-org,
.greeting-name {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 8px;
    color: rgba(255, 255, 255, 0.9);
    letter-spacing: -0.2px;
}

.greeting-name {
    font-weight: 600;
    color: var(--white);
    margin-bottom: 0;
}

/* ==========================================
   Program Highlight 섹션
   ========================================== */
.program-highlight-section {
    display: none;
    position: relative;
    width: 100%;
    padding: 80px 0;
    background: transparent;
    color: var(--white);
}

.program-highlight-section .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Program Highlight 컨텐츠: 인사말과 동일한 max-width */
.program-highlight-content {
    max-width: 900px;
    margin: 0 auto;
}

.section-title {
    font-size: 36px;
    font-weight: 600;
    text-align: center;
    margin: 0 0 48px;
    color: var(--white);
    letter-spacing: -0.5px;
    padding-bottom: 24px;
    border-bottom: 2px solid rgba(255, 255, 255, 0.2);
}

.program-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin: 0 auto 48px;
}

.program-card {
    background: rgba(26, 35, 50, 0.6);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 40px 28px;
    text-align: center;
    transition: all 0.3s ease;
}

.program-card:hover {
    transform: translateY(-4px);
    border-color: rgba(253, 184, 44, 0.3);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.program-card .card-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--white);
    margin: 0 0 12px;
    letter-spacing: -0.5px;
}

.program-card .card-subtitle {
    font-size: 14px;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
    letter-spacing: 0.2px;
}

/* 버튼 영역: 중앙 정렬 */
.btn-center {
    text-align: center;
    width: 100%;
    margin-top: 48px;
}

.btn-view-more {
    display: inline-block;
    padding: 12px 60px;
    background: transparent;
    color: var(--white);
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 50px;
    transition: all 0.3s ease;
    letter-spacing: 0.3px;
}

.btn-view-more:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

/* ==========================================
   서브페이지 공통 레이아웃
   ========================================== */

/* 서브페이지용 컨테이너: 상단 여백 확보 */
#content > .container {
    padding-top: 60px;
    padding-bottom: 80px;
}

/* PAGE HEADER: 페이지 제목 영역 */
.page-header {
    margin-bottom: 48px;
    padding-bottom: 24px;
    border-bottom: 2px solid rgba(255, 255, 255, 0.2);
}

.page-header h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--white);
    margin: 0;
    letter-spacing: -0.5px;
}

/* CONTENT BODY: 본문 컨텐츠 영역 */
.content-body {
    color: var(--white);
    line-height: 1.8;
}

/* 서브페이지 공통 섹션 스타일 */
.content-body > div {
    margin-bottom: 48px;
}

.content-body > div:last-child {
    margin-bottom: 0;
}

.content-body h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--accent-orange);
    margin: 0 0 24px;
    letter-spacing: -0.3px;
}

.content-body h4 {
    font-size: 20px;
    font-weight: 600;
    color: var(--white);
    margin: 0 0 16px;
}

.content-body p {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 16px;
    color: rgba(255, 255, 255, 0.9);
}

.content-body ul,
.content-body ol {
    margin: 16px 0;
    padding-left: 24px;
    color: rgba(255, 255, 255, 0.9);
}

.content-body li {
    margin-bottom: 8px;
    line-height: 1.8;
}

.content-body strong {
    font-weight: 600;
    color: var(--white);
}

/* 테이블 스타일 */
.info-table,
.schedule-table,
.fee-table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    background: rgba(26, 35, 50, 0.6);
    border-radius: 8px;
    overflow: hidden;
}

.info-table th,
.schedule-table th,
.fee-table th {
    background: rgba(255, 167, 2, 0.2);
    color: var(--accent-orange);
    padding: 16px 24px;
    text-align: left;
    font-weight: 600;
    font-size: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.info-table td,
.schedule-table td,
.fee-table td {
    padding: 16px 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.9);
}

.info-table tbody tr:last-child td,
.schedule-table tbody tr:last-child td,
.fee-table tbody tr:last-child td {
    border-bottom: none;
}

.info-table tbody tr:hover,
.schedule-table tbody tr:hover,
.fee-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.05);
}

/* 버튼 영역 */
.btn-area {
    text-align: center;
    margin: 48px 0;
}

.btn-primary,
.btn-secondary {
    display: inline-block;
    padding: 14px 32px;
    margin: 0 8px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    transition: all 0.3s ease;
}

.btn-primary {
    background: var(--accent-orange);
    color: #000;
}

.btn-primary:hover {
    background: #FFB620;
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

/* 안내 문구 */
.notice {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    font-style: italic;
    margin-top: 16px;
}

.notice-list {
    list-style: none;
    padding-left: 0;
    margin: 16px 0;
}

.notice-list li {
    padding-left: 24px;
    position: relative;
    margin-bottom: 12px;
    font-size: 16px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.9);
}

.notice-list li:last-child {
    margin-bottom: 0;
}

.notice-list li::before {
    content: '•';
    position: absolute;
    left: 8px;
    color: var(--accent-orange);
    font-weight: bold;
}

/* 행사안내 페이지 전용 스타일 */
.event-info {
    margin-bottom: 48px;
    text-align: center;
}

.event-main-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 12px;
    line-height: 1.4;
}

.event-subtitle-en {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 32px;
    letter-spacing: 0.5px;
}

.event-title-section {
    margin-bottom: 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.event-title-eng {
    font-size: 28px;
    font-weight: 600;
    color: var(--accent-orange);
    margin-bottom: 12px;
    line-height: 1.4;
}

.event-title-ko {
    font-size: 24px;
    font-weight: 500;
    color: var(--accent-orange);
    margin: 0;
    line-height: 1.4;
}

.event-description {
    background: rgba(26, 35, 50, 0.6);
    padding: 24px;
    border-radius: 8px;
    margin-bottom: 32px;
    line-height: 1.8;
    text-align: left;
}

.event-description p {
    margin-bottom: 8px;
    font-size: 16px;
    color: rgba(255, 255, 255, 0.9);
}

.event-description p:last-child {
    margin-bottom: 0;
}

/* 서브페이지 정보 섹션 통일 스타일 */
.info-section {
    background: rgba(26, 35, 50, 0.6);
    padding: 32px;
    border-radius: 8px;
    margin-bottom: 48px;
}

.info-section:last-child {
    margin-bottom: 0;
}

.info-section h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--accent-orange);
    margin: 0 0 24px;
    letter-spacing: -0.3px;
}

.info-content {
    line-height: 1.8;
}

.info-content p {
    margin-bottom: 12px;
    font-size: 16px;
    color: rgba(255, 255, 255, 0.9);
}

.info-content p:last-child {
    margin-bottom: 0;
}

.info-content p strong {
    font-weight: 600;
    color: var(--white);
    margin-right: 8px;
}

.notice-text {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    font-style: italic;
    margin-top: 16px;
}

.info-list {
    list-style: none;
    padding-left: 0;
    margin: 16px 0;
}

.info-list li {
    margin-bottom: 12px;
    font-size: 16px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.9);
}

.info-list li:last-child {
    margin-bottom: 0;
}

.info-list li strong {
    font-weight: 600;
    color: var(--white);
    margin-right: 8px;
}

.info-method {
    margin-top: 16px;
    font-size: 16px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.9);
}

.info-method strong {
    font-weight: 600;
    color: var(--white);
    margin-right: 8px;
}

.event-thumbnail {
    margin: 32px 0;
}

.event-thumbnail img {
    width: 100%;
    border-radius: 8px;
}

/* 기존 event-notice는 info-section으로 통일됨 */

/* 프로그램 안내 페이지 전용 스타일 */
.program-schedule {
    background: rgba(26, 35, 50, 0.6);
    padding: 32px;
    border-radius: 8px;
    margin-bottom: 32px;
}

.program-schedule h3 {
    margin-top: 0;
}

/* 오시는 길 페이지 전용 스타일 */
.location-info {
    background: rgba(26, 35, 50, 0.6);
    padding: 24px;
    border-radius: 8px;
    margin-bottom: 32px;
}

.venue-name {
    font-size: 22px;
    margin-bottom: 16px;
    color: var(--accent-orange);
}

.address p {
    margin-bottom: 8px;
}

.map-area {
    margin: 32px 0;
}

.map-area #map {
    width: 100%;
    height: 400px;
    background: rgba(26, 35, 50, 0.6);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.5);
}

.transportation {
    margin-top: 32px;
}

.trans-section {
    background: rgba(26, 35, 50, 0.6);
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 16px;
}

.trans-section h4 {
    margin-top: 0;
    margin-bottom: 12px;
}

.trans-section ul {
    margin: 8px 0;
    padding-left: 20px;
}

.trans-section li {
    margin-bottom: 4px;
}

/* 사전등록 페이지 전용 스타일 */
.register-info,
.fee-info {
    background: rgba(26, 35, 50, 0.6);
    padding: 24px;
    border-radius: 8px;
    margin-bottom: 32px;
}

.register-info h3,
.fee-info h3 {
    margin-top: 0;
}

.register-info ul {
    list-style: none;
    padding-left: 0;
}

.register-info li {
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.register-info li:last-child {
    border-bottom: none;
}

.text-danger {
    color: #f44336;
}

/* ==========================================
   푸터
   ========================================== */
#ft, #footer { 
    min-width:auto !important; 
    color:rgba(255,255,255,0.7); 
    padding:60px 0; 
    text-align:center; 
    margin-top:auto; 
    width:100% !important; 
    max-width:100% !important; 
}

#ft_wr, #ft_copy { 
    width:100% !important; 
    max-width:1200px !important; 
    margin:0 auto !important; 
}

#aside { 
    float:none !important; 
    width:100% !important; 
    margin:0 !important; 
}

#footer a { 
    color:var(--accent-orange); 
    text-decoration:none; 
}

#footer a:hover { 
    text-decoration:underline; 
}

/* ==========================================
   반응형 디자인
   ========================================== */

/* 모바일 (1024px 미만) */
@media (max-width: 1023px) {
    /* HEADER BASE - MOBILE */
    #header { 
        padding: 16px 0; 
    }
    
    .logo a span {
        font-size: 17px;
        letter-spacing: -0.4px;
    }
    
    .logo img { 
        height: 36px; 
    }
    
    /* HAMBURGER - MOBILE */
    /* 모바일에서 햄버거 라벨 표시 */
    .nav-toggle-label {
        display: flex;
        margin-left: auto;
    }
    
    /* NAV WRAPPER - MOBILE OVERLAY */
    /* 기본 상태: 숨김 (transform으로 화면 밖) */
    .nav-wrapper {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        justify-content: flex-start;
        align-items: stretch;
        background: rgba(0, 0, 0, 0.95);
        backdrop-filter: blur(10px);
        padding: 80px 24px 24px;
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transform: translateY(-20px);
        transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
        z-index: 999;
        gap: 0;
    }
    
    /* 체크박스 체크 시: 오버레이 표시 */
    #nav-toggle:checked ~ .nav-wrapper {
        opacity: 1;
        visibility: visible;
        pointer-events: all;
        transform: translateY(0);
    }
    
    /* GNB MOBILE */
    /* 모바일에서 세로 리스트로 변경 */
    #gnb { 
        flex: none;
        width: 100%;
        display: flex;
        justify-content: flex-start;
        margin-bottom: 24px;
    }
    
    #gnb ul { 
        flex-direction: column; 
        gap: 0;
        width: 100%;
        padding: 0;
        margin: 0;
    }
    
    #gnb li {
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    #gnb a { 
        display: block;
        width: 100%;
        padding: 16px 24px;
        font-size: 17px;
        text-align: left;
        transition: background-color 0.3s ease, color 0.3s ease;
    }
    
    #gnb a:hover {
        background-color: rgba(255, 255, 255, 0.05);
    }
    
    /* UTILITY MOBILE */
    /* 모바일에서 nav-wrapper 하단에 배치, 세로 배치 */
    .header-util {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        width: 100%;
        padding-top: 24px;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    /* divider 숨김 */
    .header-util .divider {
        display: none;
    }
    
    /* 유틸리티 링크 - 세로 배치, 왼쪽 정렬 */
    .header-util .btn-util,
    .header-util .btn-official {
        display: block;
        width: 100%;
        padding: 16px 24px;
        font-size: 17px;
        color: var(--white);
        text-decoration: none;
        text-align: left;
        transition: background-color 0.3s ease, color 0.3s ease;
    }
    
    .header-util .btn-util:hover,
    .header-util .btn-official:hover {
        background-color: rgba(255, 255, 255, 0.05);
        color: var(--accent-orange);
    }
    
    /* 히어로 */
    .hero-section {
        padding: 100px 20px 80px;
    }
    
    .hero-title { font-size: 42px; }
    
    .hero-subtitle-ko { font-size: 22px; }
    
    .hero-description p { font-size: 14px; }
    
    .hero-info p { 
        font-size: 13px; 
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .hero-logo {
        height: 28px;
        max-width: 160px;
    }
    
    .hero-cta-btn {
        padding: 12px 60px;
        font-size: 15px;
    }
    
    /* 히어로 퀵메뉴 - 모바일 */
    .hero-quick-menu {
        flex-direction: column;
        gap: 12px;
        margin-top: 40px;
    }
    
    .quick-menu-item {
        width: 100%;
        max-width: 280px;
        padding: 12px 24px;
        font-size: 14px;
    }
    
    /* Program Highlight */
    .program-highlight-section { 
        padding: 60px 0;
    }
    
    .program-highlight-section .container {
        padding: 0 24px;
    }
    
    .program-highlight_content {
        padding: 0;
    }
    
    .section-title { 
        font-size: 28px; 
        margin-bottom: 32px;
        padding-bottom: 16px;
    }
    
    .program-cards {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-bottom: 40px;
    }
    
    .program-card { 
        padding: 36px 24px;
    }
    
    .program-card .card-title {
        font-size: 20px;
        margin-bottom: 10px;
    }
    
    .program-card .card-subtitle {
        font-size: 13px;
    }
    
    /* Program Highlight 버튼 반응형 */
    .btn-center {
        margin-top: 40px;
    }
    
    .btn-view-more {
        padding: 10px 48px;
        font-size: 14px;
    }
    
    /* 회장 인사말 섹션 반응형 */
    .greeting-section {
        padding: 60px 0;
    }
    
    .greeting-title {
        font-size: 28px;
        margin-bottom: 32px;
        padding-bottom: 16px;
    }
    
    .greeting-text {
        font-size: 16px;
        margin-bottom: 20px;
    }
    
    .greeting-signature {
        margin-top: 32px;
        padding-top: 24px;
        text-align: center;
    }
    
    .greeting-date,
    .greeting-org,
    .greeting-name {
        font-size: 15px;
    }
    
    /* 서브페이지 반응형 */
    #content > .container {
        padding-top: 40px;
        padding-bottom: 60px;
    }
    
    .page-header {
        margin-bottom: 32px;
        padding-bottom: 16px;
    }
    
    .page-header h2 {
        font-size: 28px;
    }
    
    .content-body h3 {
        font-size: 20px;
        margin-bottom: 16px;
    }
    
    .content-body > div {
        margin-bottom: 32px;
    }
    
    .info-table th,
    .schedule-table th,
    .fee-table th,
    .info-table td,
    .schedule-table td,
    .fee-table td {
        padding: 12px 16px;
        font-size: 14px;
    }
    
    .btn-primary,
    .btn-secondary {
        display: block;
        width: 100%;
        margin: 8px 0;
    }
    
    .btn-area {
        margin: 32px 0;
    }
}
/* 모바일 (480px 이하) */
@media (max-width:480px) {
    .logo a span {
        font-size: 15px;
        letter-spacing: -0.3px;
    }
    
    .logo img { height: 32px; }
    
    /* 히어로 */
    .hero-section {
        min-height: 70vh;
        padding: 80px 16px 50px;
    }
    
    .hero-subtitle-top { font-size: 20px; }
    
    .hero-title { 
        font-size: 36px;
        letter-spacing: -1px;
    }
    
    .hero-subtitle-ko { font-size: 20px; }
    
    .hero-description p { font-size: 13px; }
    
    .hero-info p { 
        font-size: 12px; 
        flex-wrap: wrap;
        gap: 6px;
    }
    
    .hero-logo {
        height: 24px;
        max-width: 140px;
    }
    
    .hero-cta-btn {
        padding: 12px 50px;
        font-size: 14px;
    }
    
    /* 히어로 퀵메뉴 - 작은 모바일 */
    .hero-quick-menu {
        gap: 10px;
        margin-top: 32px;
    }
    
    .quick-menu-item {
        padding: 11px 20px;
        font-size: 13px;
        min-width: auto;
    }
    
    /* Program Highlight */
    .program-highlight-section { 
        padding: 50px 0;
    }
    
    .program-highlight-section .container {
        padding: 0 16px;
    }
    
    .program-highlight_content {
        padding: 0;
    }
    
    .section-title { 
        font-size: 24px;
        margin-bottom: 24px;
        padding-bottom: 12px;
    }
    
    .program-cards {
        margin-bottom: 32px;
    }
    
    .program-card { 
        padding: 32px 20px;
    }
    
    .program-card .card-title { 
        font-size: 18px;
        margin-bottom: 8px;
    }
    
    .program-card .card-subtitle { 
        font-size: 12px;
    }
    
    /* Program Highlight 버튼 반응형 */
    .btn-center {
        margin-top: 32px;
    }
    
    .btn-view-more {
        padding: 10px 40px;
        font-size: 14px;
    }
    
    /* 서브페이지 반응형 */
    .page-header h2 {
        font-size: 24px;
    }
    
    .content-body h3 {
        font-size: 18px;
    }
    
    .content-body p {
        font-size: 14px;
    }
    
    .info-table,
    .schedule-table,
    .fee-table {
        font-size: 13px;
    }
    
    .info-table th,
    .schedule-table th,
    .fee-table th,
    .info-table td,
    .schedule-table td,
    .fee-table td {
        padding: 10px 12px;
        font-size: 13px;
    }
    
    .event-title {
        font-size: 22px;
    }
    
    .event-main-title {
        font-size: 26px;
    }
    
    .event-subtitle-en {
        font-size: 18px;
    }
    
    .event-title-section {
        padding-bottom: 24px;
    }
    
    .event-title-eng {
        font-size: 24px;
    }
    
    .event-title-ko {
        font-size: 20px;
    }
    
    /* 정보 섹션 통일 스타일 반응형 */
    .info-section {
        padding: 24px;
        margin-bottom: 32px;
    }
    
    .info-section h3 {
        font-size: 20px;
        margin-bottom: 16px;
    }
    
    .info-content p {
        font-size: 15px;
        margin-bottom: 10px;
    }
    
    .info-list {
        margin: 12px 0;
    }
    
    .info-list li {
        font-size: 15px;
        margin-bottom: 10px;
    }
    
    .notice-list li {
        font-size: 15px;
        margin-bottom: 10px;
    }
    
    .info-method {
        font-size: 15px;
        margin-top: 12px;
    }
    
    .notice-text {
        font-size: 13px;
        margin-top: 12px;
    }
    
    .event-description,
    .program-schedule,
    .location-info,
    .register-info,
    .fee-info,
    .trans-section {
        padding: 20px;
    }
    
    .map-area #map {
        height: 300px;
    }
    
    /* 회장 인사말 섹션 반응형 */
    .greeting-section {
        padding: 50px 0;
    }
    
    .greeting-content {
        padding: 0 16px;
    }
    
    .greeting-title {
        font-size: 24px;
        margin-bottom: 24px;
        padding-bottom: 12px;
    }
    
    .greeting-text {
        font-size: 15px;
        margin-bottom: 16px;
        line-height: 1.8;
    }
    
    .greeting-body {
        margin-bottom: 32px;
    }
    
    .greeting-signature {
        margin-top: 24px;
        padding-top: 20px;
    }
    
    .greeting-date,
    .greeting-org,
    .greeting-name {
        font-size: 14px;
    }
    
    /* 정보 섹션 통일 스타일 반응형 */
    .info-section {
        padding: 20px;
        margin-bottom: 24px;
    }
    
    .info-section h3 {
        font-size: 18px;
        margin-bottom: 12px;
    }
    
    .info-content p {
        font-size: 14px;
        margin-bottom: 8px;
    }
    
    .info-list {
        margin: 12px 0;
    }
    
    .info-list li {
        font-size: 14px;
        margin-bottom: 8px;
    }
    
    .notice-list li {
        font-size: 14px;
        margin-bottom: 8px;
    }
    
    .info-method {
        font-size: 14px;
        margin-top: 12px;
    }
    
    .notice-text {
        font-size: 12px;
        margin-top: 10px;
    }
}

/* 프로그램 세션 블록 스타일 */
.session-block {
    margin-bottom: 48px;
}

.session-block:last-child {
    margin-bottom: 0;
}

.session-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--accent-orange);
    margin: 0 0 24px;
    padding-bottom: 12px;
    border-bottom: 2px solid rgba(255, 165, 0, 0.3);
    letter-spacing: -0.3px;
}

.session-block .schedule-table {
    margin-top: 0;
}

.session-moderator {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.9);
    margin: 0 0 24px;
    padding-left: 8px;
}

/* 프로그램 리스트 */
.program-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.program-item {
    background: rgba(255, 255, 255, 0.05);
    padding: 24px;
    border-radius: 8px;
    border-left: 3px solid var(--accent-orange);
    display: flex;
    gap: 16px;
}

.program-header {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
    min-width: 140px;
}

.program-time {
    font-size: 18px;
    font-weight: 700;
    color: var(--white);
    white-space: nowrap;
}

.program-type {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 600;
    color: var(--white);
    background: #4A90E2;
    letter-spacing: 0.3px;
    white-space: nowrap;
}

.program-type-break {
    background: rgba(255, 255, 255, 0.2);
}

.program-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-left: 0;
}

.program-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--white);
    margin: 0;
    line-height: 1.6;
}

.program-speaker {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
    line-height: 1.6;
}

/* 반응형 */
@media (max-width: 768px) {
    .session-title {
        font-size: 20px;
        margin-bottom: 16px;
        padding-bottom: 8px;
    }
    
    .session-moderator {
        font-size: 15px;
        margin-bottom: 20px;
    }
    
    .session-block {
        margin-bottom: 32px;
    }
    
    .program-list {
        gap: 20px;
    }
    
    .program-item {
        padding: 20px;
    }
    
    .program-time {
        font-size: 16px;
    }
    
    .program-title {
        font-size: 16px;
    }
    
    .program-speaker {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .session-title {
        font-size: 18px;
        margin-bottom: 12px;
    }
    
    .session-moderator {
        font-size: 14px;
        margin-bottom: 16px;
    }
    
    .session-block {
        margin-bottom: 24px;
    }
    
    .program-list {
        gap: 16px;
    }
    
    .program-item {
        padding: 16px;
    }
    
    .program-item {
        flex-direction: column;
        gap: 12px;
    }
    
    .program-header {
        min-width: auto;
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .program-content {
        padding-left: 0;
    }
    
    .program-time {
        font-size: 15px;
    }
    
    .program-type {
        font-size: 12px;
        padding: 3px 10px;
    }
    
    .program-title {
        font-size: 15px;
    }
    
    .program-speaker {
        font-size: 13px;
    }
}

/* ==========================================
   Program v2 Layout (time | badge, title, speakers)
   - 목표: 좌측 시간, 우측 3줄(배지 → 제목 → 스피커/소속)
   - 구현: 기존 flex 카드를 그리드 2열 행 기반으로 오버라이드
   ========================================== */
/* 컨테이너를 2열 그리드로 전환 */
.program-item {
    display: grid;
    grid-template-columns: 170px 1fr; /* 시간 칼럼 확장 */
    column-gap: 24px;
    padding: 16px 0;
    background: none !important;
    border-left: 0 !important;
    border-radius: 0 !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

/* 헤더 래퍼를 펼쳐 자식(.program-time, .program-type)을 그리드에 직접 참여 */
.program-header {
    display: contents;
}

/* 좌측 고정 시간 */
.program-time {
    grid-column: 1;
    grid-row: 1;
    align-self: start;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-gray);
    white-space: nowrap;
}

/* 우측 1행: 배지(Pill) */
.program-type {
    grid-column: 2;
    grid-row: 1;
    justify-self: start;
    display: inline-block;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 700;
    line-height: 1;
}

/* 배지 색상 타입 */
.program-type-keynote          { background: #1F6FFF; color: #fff; }
.program-type-break            { background: rgba(255,255,255,0.25); color: #fff; }
.program-type-closing          { background: #6B7280; color: #fff; }
.program-type-closing-remarks  { background: #6B7280; color: #fff; }
.program-type-opening-remarks  { background: #6B7280; color: #fff; }
.program-type-session          { background: var(--accent-orange); color: #111; }

/* 우측 2~3행: 제목, 스피커 스택 */
.program-content {
    grid-column: 2;
    grid-row: 1; /* 기본값: 배지가 없으면 바로 1행부터 */
    display: grid;
    grid-auto-rows: min-content;
    row-gap: 6px;
    padding-left: 0; /* 기존 여백 제거 */
}

/* 배지가 존재하면 컨텐츠는 2행부터 시작 */
.program-item:has(.program-type) .program-content {
    grid-row: 2;
}

.program-title {
    font-size: 22px;
    font-weight: 700;
    margin: 0;
    line-height: 1.5;
    word-break: keep-all;
    overflow-wrap: anywhere; /* 긴 영문 대비 */
}

.program-speaker { /* 스피커/소속 한 줄 */
    font-size: 15px;
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
}

/* 반응형: 모바일에서는 1열 스택 */
@media (max-width: 768px) {
    .program-item {
        grid-template-columns: 1fr;
        row-gap: 10px;
    }
    .program-time { grid-column: 1; grid-row: 1; font-size: 16px; }
    .program-type { grid-column: 1; grid-row: 2; }
    .program-content { grid-column: 1; grid-row: 3; }
    .program-title { font-size: 18px; }
}

/* 지도 임베드 스타일 수정 */
.map-embed .root_daum_roughmap { width:100% !important; }
.info-section + .info-section { margin-top:28px; }
.info-list { margin:8px 0 0 18px; }
.info-list li { list-style: disc; line-height:1.7; }