/* ===================================
   GCJC Park Golf 동호회 - 스타일시트
   파크골프 테마 색상: 그린, 스카이블루
   =================================== */

/* CSS 변수 정의 */
:root {
    /* 메인 컬러 - 골프 그린 */
    --primary-color: #2E7D32;
    --primary-light: #4CAF50;
    --primary-dark: #1B5E20;
    
    /* 세컨더리 컬러 - 스카이블루 */
    --secondary-color: #0288D1;
    --secondary-light: #03A9F4;
    --secondary-dark: #01579B;
    
    /* 악센트 컬러 */
    --accent-color: #FFC107;
    --accent-light: #FFD54F;
    
    /* 그라데이션 */
    --gradient-primary: linear-gradient(135deg, #2E7D32 0%, #4CAF50 100%);
    --gradient-secondary: linear-gradient(135deg, #0288D1 0%, #03A9F4 100%);
    --gradient-hero: linear-gradient(135deg, #1B5E20 0%, #2E7D32 50%, #0288D1 100%);
    
    /* 중립 색상 */
    --white: #FFFFFF;
    --off-white: #F8FDF8;
    --light-gray: #E8F5E9;
    --medium-gray: #9E9E9E;
    --dark-gray: #424242;
    --black: #212121;
    
    /* 타이포그래피 */
    --font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* 그림자 */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.2);
    
    /* 전환 */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* 간격 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* 둥근 모서리 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 50%;
}

/* 리셋 및 기본 스타일 */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.7;
    color: var(--black);
    background-color: var(--white);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

ul {
    list-style: none;
}

/* 컨테이너 */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===================================
   네비게이션
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: var(--spacing-sm) 0;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.navbar.scrolled {
    padding: var(--spacing-xs) 0;
    box-shadow: var(--shadow-md);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-logo i {
    font-size: 1.5rem;
    color: var(--primary-light);
}

.nav-menu {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-link {
    font-weight: 500;
    color: var(--dark-gray);
    padding: var(--spacing-xs) 0;
    position: relative;
    cursor: pointer;
    pointer-events: auto;
    display: inline-block;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-normal);
}

.nav-link:hover {
    color: var(--primary-color);
}

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

.nav-link.highlight-btn {
    background: var(--gradient-primary);
    color: var(--white) !important;
    padding: var(--spacing-xs) var(--spacing-md) !important;
    border-radius: var(--radius-xl);
}

.nav-link.highlight-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.nav-link.highlight-btn::after {
    display: none;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
    transition: var(--transition-fast);
}

/* ===================================
   히어로 섹션
   =================================== */
.hero {
    min-height: 100vh;
    background: 
        url('https://www.genspark.ai/api/files/s/97lxMKsL') center/cover no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: var(--spacing-2xl) var(--spacing-md);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(27, 94, 32, 0.85) 0%,
        rgba(46, 125, 50, 0.75) 50%,
        rgba(2, 136, 209, 0.7) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--white);
    max-width: 800px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: rgba(255, 255, 255, 0.2);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-xl);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-lg);
    backdrop-filter: blur(5px);
}

.hero-badge i {
    color: var(--accent-color);
}

.hero-title {
    font-size: clamp(2rem, 6vw, 3.5rem);
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
}

.title-line {
    display: block;
}

.title-line.highlight {
    color: var(--accent-light);
}

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--accent-light);
}

.hero-description {
    font-size: 1.1rem;
    opacity: 0.95;
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

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

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent-light);
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-xl);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition-normal);
}

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

.btn-primary:hover {
    background: var(--accent-light);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

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

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

.hero-scroll {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    color: var(--white);
    text-align: center;
    animation: bounce 2s infinite;
}

.hero-scroll span {
    display: block;
    font-size: 0.8rem;
    margin-bottom: var(--spacing-xs);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* ===================================
   섹션 공통 스타일
   =================================== */
section {
    padding: var(--spacing-2xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-badge {
    display: inline-block;
    background: var(--gradient-primary);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-xl);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-header.light .section-badge {
    background: rgba(255, 255, 255, 0.2);
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--black);
    margin-bottom: var(--spacing-xs);
}

.section-header.light .section-title {
    color: var(--white);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--medium-gray);
}

.section-header.light .section-subtitle {
    color: rgba(255, 255, 255, 0.9);
}

/* ===================================
   동호회 소개 섹션
   =================================== */
.about {
    background: var(--off-white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.about-image {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-image-badge {
    position: absolute;
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--gradient-primary);
    color: var(--white);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
}

.about-text h3 {
    font-size: 1.8rem;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-md);
}

.about-quote {
    font-size: 1.15rem;
    color: var(--dark-gray);
    font-style: italic;
    padding: var(--spacing-md);
    background: var(--white);
    border-left: 4px solid var(--primary-color);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin-bottom: var(--spacing-lg);
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.feature-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.feature-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.feature-text h4 {
    font-size: 1rem;
    color: var(--black);
    margin-bottom: 4px;
}

.feature-text p {
    font-size: 0.9rem;
    color: var(--medium-gray);
}

/* ===================================
   활동 일정 섹션
   =================================== */
.schedule {
    background: var(--white);
}

.schedule-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.schedule-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

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

.schedule-day {
    background: var(--gradient-primary);
    color: var(--white);
    padding: var(--spacing-md);
    text-align: center;
}

.day-name {
    display: block;
    font-size: 1.3rem;
    font-weight: 700;
}

.day-time {
    display: block;
    font-size: 1.1rem;
    opacity: 0.95;
}

.schedule-info {
    padding: var(--spacing-lg);
}

.schedule-info h3 {
    font-size: 1rem;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-xs);
}

.schedule-info h3 i {
    color: var(--secondary-color);
    margin-top: 3px;
}

.schedule-info p {
    color: var(--medium-gray);
    margin-bottom: var(--spacing-md);
}

.schedule-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--secondary-color);
    font-weight: 600;
}

.schedule-link:hover {
    color: var(--secondary-dark);
}

.special-events {
    background: var(--light-gray);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
}

.special-events > h3 {
    text-align: center;
    font-size: 1.5rem;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-lg);
}

.special-events > h3 i {
    color: var(--accent-color);
}

.events-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.event-item {
    display: flex;
    gap: var(--spacing-md);
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
}

.event-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-secondary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.event-content h4 {
    font-size: 1.1rem;
    color: var(--black);
    margin-bottom: 4px;
}

.event-content p {
    font-size: 0.9rem;
    color: var(--medium-gray);
}

/* ===================================
   갤러리 섹션
   =================================== */
.gallery {
    background: var(--off-white);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(2, 250px);
    gap: var(--spacing-md);
}

.gallery-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
}

.gallery-item.large {
    grid-column: span 2;
    grid-row: span 2;
}

.gallery-item.wide {
    grid-column: span 2;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: rgba(27, 94, 32, 0.8);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-normal);
    color: var(--white);
}

.gallery-overlay i {
    font-size: 2rem;
    margin-bottom: var(--spacing-xs);
}

.gallery-overlay span {
    font-weight: 600;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

/* 이미지 모달 */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.9);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    position: relative;
    max-width: 90%;
    max-height: 90%;
}

.modal-content img {
    max-width: 100%;
    max-height: 85vh;
    border-radius: var(--radius-md);
}

.modal-close {
    position: absolute;
    top: -40px;
    right: 0;
    background: none;
    border: none;
    color: var(--white);
    font-size: 2.5rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.modal-close:hover {
    color: var(--accent-color);
}

.modal-caption {
    text-align: center;
    color: var(--white);
    margin-top: var(--spacing-sm);
    font-size: 1.1rem;
}

/* ===================================
   가입 안내 섹션
   =================================== */
.join {
    background: var(--gradient-hero);
    color: var(--white);
}

.join-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

.join-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.join-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition-normal);
}

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

.join-icon {
    width: 70px;
    height: 70px;
    background: var(--white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

.join-icon i {
    font-size: 1.8rem;
    color: var(--primary-color);
}

.join-card h3 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
}

.join-card ul {
    text-align: left;
}

.join-card li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
    font-size: 0.95rem;
}

.join-card li i {
    color: var(--accent-color);
}

.fee-amount {
    margin-bottom: var(--spacing-sm);
}

.fee-price {
    font-size: 3rem;
    font-weight: 800;
    color: var(--accent-light);
}

.fee-period {
    font-size: 1.2rem;
    opacity: 0.9;
}

.join-card p {
    font-size: 0.9rem;
    opacity: 0.9;
}

.join-cta {
    display: flex;
    align-items: center;
}

.cta-box {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-xl);
}

.cta-box h3 {
    font-size: 1.5rem;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-xs);
}

.cta-box p {
    color: var(--medium-gray);
    margin-bottom: var(--spacing-lg);
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.btn-cta {
    background: var(--gradient-primary);
    color: var(--white);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-xl);
    font-size: 1.1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

.btn-cta:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-cta-secondary {
    background: var(--light-gray);
    color: var(--primary-dark);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-xl);
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

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

/* ===================================
   연락처 섹션
   =================================== */
.contact {
    background: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.contact-card {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--off-white);
    border-radius: var(--radius-lg);
    transition: var(--transition-normal);
}

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

.contact-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

.contact-icon i {
    font-size: 1.8rem;
    color: var(--white);
}

.contact-card h3 {
    font-size: 1.1rem;
    color: var(--black);
    margin-bottom: var(--spacing-xs);
}

.contact-card p {
    color: var(--medium-gray);
    font-size: 0.95rem;
}

.contact-card a {
    color: var(--secondary-color);
}

.contact-card a:hover {
    color: var(--secondary-dark);
}

.map-container {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

/* ===================================
   푸터
   =================================== */
.footer {
    background: var(--black);
    color: var(--white);
    padding: var(--spacing-xl) 0;
}

.footer-content {
    text-align: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.footer-logo i {
    color: var(--primary-light);
}

.footer-tagline {
    color: var(--medium-gray);
    margin-bottom: var(--spacing-md);
}

.footer-contact {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.footer-contact span {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--medium-gray);
}

.footer-contact i {
    color: var(--primary-light);
}

.footer-copyright {
    font-size: 0.9rem;
    color: var(--medium-gray);
}

/* ===================================
   맨 위로 버튼
   =================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-full);
    color: var(--white);
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition-normal);
    box-shadow: var(--shadow-md);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

/* ===================================
   반응형 디자인
   =================================== */
@media (max-width: 1024px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .about-image {
        max-height: 400px;
    }
    
    .join-content {
        grid-template-columns: 1fr;
    }
    
    .join-info {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--white);
        flex-direction: column;
        gap: 0;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-md);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-normal);
        z-index: 9999;
        overflow-y: auto;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-menu li {
        width: 100%;
    }
    
    .nav-link {
        display: block;
        padding: var(--spacing-md);
        border-bottom: 1px solid var(--light-gray);
        font-size: 1.1rem;
        position: relative;
        z-index: 10000;
    }
    
    .nav-link:active {
        background-color: var(--light-gray);
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    .hero-stats {
        gap: var(--spacing-lg);
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .schedule-grid {
        grid-template-columns: 1fr;
    }
    
    .events-list {
        grid-template-columns: 1fr;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: auto;
    }
    
    .gallery-item.large {
        grid-column: span 2;
        grid-row: span 1;
    }
    
    .gallery-item.wide {
        grid-column: span 2;
    }
    
    .join-info {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-item.large,
    .gallery-item.wide {
        grid-column: span 1;
    }
    
    .footer-contact {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

/* ===================================
   애니메이션
   =================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* 스크롤 애니메이션을 위한 초기 상태 */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===================================
   언어 전환 버튼
   =================================== */
.lang-switch {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: var(--spacing-sm);
    padding-left: var(--spacing-sm);
    border-left: 1px solid var(--light-gray);
}

.lang-btn {
    background: none;
    border: 2px solid transparent;
    color: var(--medium-gray);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-fast);
    font-family: 'Inter', sans-serif;
}

.lang-btn:hover {
    color: var(--primary-color);
    border-color: var(--primary-light);
}

.lang-btn.active {
    background: var(--gradient-primary);
    color: var(--white);
    border-color: transparent;
}

.lang-divider {
    color: var(--light-gray);
    font-weight: 300;
}

/* 모바일 언어 전환 */
@media (max-width: 768px) {
    .lang-switch {
        justify-content: center;
        padding: var(--spacing-sm) 0;
        margin: var(--spacing-sm) 0 0 0;
        border-left: none;
        border-top: 1px solid var(--light-gray);
    }
    
    .lang-btn {
        padding: 8px 20px;
        font-size: 0.95rem;
    }
}

/* 언어 전환 애니메이션 */
[data-ko], [data-en] {
    transition: opacity 0.3s ease;
}

/* 영어 폰트 적용 */
html[lang="en"] body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

html[lang="en"] .hero-title {
    font-family: 'Inter', sans-serif;
    letter-spacing: -0.02em;
}

html[lang="en"] .section-title {
    font-family: 'Inter', sans-serif;
}