/**
 * ============================================
 * 커스텀 스타일시트 (style.css)
 * ============================================
 * 
 * Tailwind CSS로 커버되지 않는 커스텀 스타일을 정의합니다.
 * - 애니메이션 효과
 * - 커스텀 스크롤바
 * - Masonry 레이아웃
 * - 모달 스타일
 * - 타이포그래피 등
 */

/* ============================================
   1. CSS 변수 (디자인 토큰)
   ============================================ */
:root {
    /* 색상 팔레트 - Monotone 기반 */
    --color-primary: #0a0a0a;
    /* 메인 블랙 */
    --color-secondary: #1a1a1a;
    /* 서브 블랙 */
    --color-accent: #2a2a2a;
    /* 액센트 다크 그레이 */
    --color-muted: #6b6b6b;
    /* 음소거된 그레이 */
    --color-light: #f5f5f5;
    /* 라이트 그레이 */
    --color-white: #ffffff;
    /* 화이트 */
    --color-overlay: rgba(0, 0, 0, 0.85);
    /* 오버레이 */

    /* 타이포그래피 */
    --font-primary: 'Cormorant Garamond', serif;
    /* 제목용 세리프 */
    --font-secondary: 'Inter', sans-serif;
    /* 본문용 산세리프 */
    --font-korean: 'Noto Sans KR', sans-serif;
    /* 한글 폰트 */

    /* 반응형 폰트 크기 (clamp 사용) */
    --text-hero: clamp(3rem, 8vw, 8rem);
    --text-title: clamp(2rem, 5vw, 4rem);
    --text-subtitle: clamp(1.25rem, 3vw, 2rem);
    --text-body: clamp(0.875rem, 1.5vw, 1.125rem);
    --text-small: clamp(0.75rem, 1.2vw, 0.875rem);

    /* 스페이싱 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    /* 트랜지션 */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.8s cubic-bezier(0.4, 0, 0.2, 1);

    /* 그리드 갭 */
    --grid-gap: 1.5rem;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-secondary), var(--font-korean);
    background-color: var(--color-white);
    color: var(--color-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 선택 영역 스타일 */
::selection {
    background-color: var(--color-primary);
    color: var(--color-white);
}

/* ============================================
   3. 커스텀 스크롤바
   ============================================ */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-light);
}

::-webkit-scrollbar-thumb {
    background: var(--color-muted);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent);
}

/* Firefox 스크롤바 */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--color-muted) var(--color-light);
}

/* ============================================
   4. 타이포그래피
   ============================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-primary);
    font-weight: 300;
    letter-spacing: 0.02em;
    line-height: 1.2;
}

.hero-title {
    font-size: var(--text-hero);
    font-weight: 300;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.section-title {
    font-family: 'Montserrat', sans-serif;
    font-size: var(--text-title);
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: var(--spacing-lg);
}

.section-subtitle {
    font-size: var(--text-subtitle);
    font-weight: 300;
    color: var(--color-muted);
}

/* ============================================
   5. 네비게이션 스타일
   ============================================ */

/* 헤더 레이아웃 */
.header-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
}

.header-left {
    flex: 1;
}

.header-logo-text {
    font-family: var(--font-secondary);
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--color-primary);
    text-decoration: none;
    transition: opacity var(--transition-fast);
}

.header-logo-text:hover {
    opacity: 0.7;
}

/* 모바일에서 로고 텍스트 숨김 */
@media (max-width: 768px) {
    .header-logo-text {
        display: none;
    }
}

.header-center {
    flex: 1;
    display: flex;
    justify-content: center;
}

.header-right {
    flex: 1;
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

.desktop-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.mobile-only {
    display: none;
}

@media (max-width: 768px) {
    .header-nav {
        padding: 0.75rem 1rem;
    }

    .desktop-nav {
        display: none;
    }

    .mobile-only {
        display: flex;
    }

    .header-left {
        display: none;
    }

    .header-center {
        flex: 1;
        justify-content: flex-start;
    }
}

.nav-link {
    position: relative;
    font-size: var(--text-small);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

/* 데스크탑 호버 효과 - 밑줄 애니메이션 */
@media (hover: hover) {
    .nav-link::after {
        content: '';
        position: absolute;
        bottom: -4px;
        left: 0;
        width: 0;
        height: 1px;
        background-color: var(--color-primary);
        transition: width var(--transition-medium);
    }

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

/* 햄버거 메뉴 버튼 */
.hamburger {
    display: none !important;
    /* 데스크톱에서 숨김 */
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 32px;
    height: 32px;
    cursor: pointer;
    z-index: 1001;
    background: none;
    border: none;
}

/* 모바일에서만 햄버거 표시 */
@media (max-width: 768px) {

    .hamburger,
    .hamburger.mobile-only {
        display: flex !important;
    }
}

.hamburger span {
    display: block;
    width: 24px;
    height: 1.5px;
    background-color: var(--color-primary);
    transition: all var(--transition-medium);
}

.hamburger span:not(:last-child) {
    margin-bottom: 6px;
}

/* 햄버거 메뉴 열린 상태 */
.hamburger.active span:first-child {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:last-child {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* 모바일 전체 화면 메뉴 */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--color-white);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-slow);
    z-index: 999;
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu .nav-link {
    font-size: var(--text-title);
    margin: var(--spacing-sm) 0;
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--transition-medium);
}

.mobile-menu.active .nav-link {
    opacity: 1;
    transform: translateY(0);
}

/* 각 링크에 딜레이 적용 */
.mobile-menu.active .nav-link:nth-child(1) {
    transition-delay: 0.1s;
}

.mobile-menu.active .nav-link:nth-child(2) {
    transition-delay: 0.2s;
}

.mobile-menu.active .nav-link:nth-child(3) {
    transition-delay: 0.3s;
}

.mobile-menu.active .nav-link:nth-child(4) {
    transition-delay: 0.4s;
}

.mobile-menu.active .nav-link:nth-child(5) {
    transition-delay: 0.5s;
}

/* ============================================
   6. 히어로 섹션
   ============================================ */
.hero-section {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.7);
}

.hero-video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    transform: translate(-50%, -50%);
    object-fit: cover;
    filter: brightness(0.6);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom,
            rgba(0, 0, 0, 0.3) 0%,
            rgba(0, 0, 0, 0.1) 50%,
            rgba(0, 0, 0, 0.4) 100%);
}

.hero-content {
    position: relative;
    text-align: center;
    color: var(--color-white);
    padding: var(--spacing-md);
    max-width: 900px;
}

.hero-slogan {
    font-size: var(--text-body);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-top: var(--spacing-xs);
    opacity: 0.9;
}

/* 히어로 로고 */
.hero-logo {
    margin-bottom: 0;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-logo-img {
    width: clamp(280px, 35vw, 450px);
    height: auto;
    filter: drop-shadow(0 6px 30px rgba(0, 0, 0, 0.35));
    transition: transform var(--transition-medium);
}

.hero-logo-img:hover {
    transform: scale(1.02);
}

/* 모바일에서 로고 크기 조절 */
@media (max-width: 768px) {
    .hero-logo-img {
        width: clamp(160px, 50vw, 250px);
    }

    .hero-slogan {
        font-size: 0.7rem;
        letter-spacing: 0.08em;
        text-align: center;
        padding: 0 1rem;
        white-space: normal;
        line-height: 1.5;
    }

    .hero-content {
        padding: 0 1rem;
    }
}

/* 스크롤 인디케이터 */
.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--color-white);
    opacity: 0.8;
    animation: bounce 2s infinite;
}

@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    40% {
        transform: translateX(-50%) translateY(-10px);
    }

    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* ============================================
   7. About 섹션
   ============================================ */
.about-section {
    padding: var(--spacing-xl) var(--spacing-md);
    background-color: var(--color-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    max-width: 1400px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .about-grid {
        grid-template-columns: 1fr 1fr;
        align-items: center;
    }
}

.about-image-wrapper {
    position: relative;
    overflow: hidden;
}

.about-image {
    width: 100%;
    height: auto;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.about-image-wrapper:hover .about-image {
    transform: scale(1.05);
}

.about-text {
    padding: var(--spacing-md) 0;
}

.about-text p {
    font-size: var(--text-body);
    color: var(--color-muted);
    margin-bottom: var(--spacing-sm);
    line-height: 1.8;
}

/* About 태그라인 */
.about-tagline {
    font-size: var(--text-subtitle) !important;
    color: var(--color-accent) !important;
    font-style: italic;
    margin-bottom: var(--spacing-md) !important;
    font-weight: 300;
}

@media (min-width: 768px) {
    .about-tagline {
        white-space: nowrap;
    }
}

/* About 인용문 */
.about-quote {
    font-family: var(--font-secondary), var(--font-korean);
    font-size: clamp(1rem, 2vw, 1.15rem) !important;
    color: var(--color-primary) !important;
    font-weight: 500;
    font-style: normal;
    margin-top: var(--spacing-lg) !important;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, #f8f9fa 0%, #eef1f5 100%);
    border-radius: 8px;
    border-left: 4px solid var(--color-primary);
    line-height: 1.6;
}

/* About 통계 카드 */
.about-stats {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-light);
}

.stat-item {
    flex: 1;
    text-align: center;
    padding: var(--spacing-sm);
    background: #f8f9fa;
    border-radius: 8px;
}

.stat-number {
    display: block;
    font-family: var(--font-secondary);
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    font-weight: 600;
    color: var(--color-primary);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.stat-label {
    display: block;
    font-family: var(--font-secondary), var(--font-korean);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-top: 4px;
}

@media (max-width: 768px) {
    .about-stats {
        gap: var(--spacing-sm);
    }

    .stat-item {
        padding: var(--spacing-xs);
    }

    .stat-number {
        font-size: 1.5rem;
    }

    .stat-label {
        font-size: 0.7rem;
    }
}

/* ============================================
   8. 포트폴리오 - Masonry Grid
   ============================================ */
.portfolio-section {
    padding: var(--spacing-xl) var(--spacing-md);
    background-color: var(--color-light);
}

.portfolio-container {
    max-width: 1600px;
    margin: 0 auto;
}

/* 년도 필터 */
.year-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: var(--spacing-lg);
}

.year-btn {
    padding: 0.5rem 1.25rem;
    background: transparent;
    border: 1px solid var(--color-muted);
    color: var(--color-muted);
    font-family: var(--font-secondary);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: all var(--transition-fast);
    border-radius: 2px;
}

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

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

@media (max-width: 768px) {
    .year-filter {
        gap: 0.4rem;
    }

    .year-btn {
        padding: 0.4rem 0.9rem;
        font-size: 0.75rem;
    }
}

/* 포트폴리오 그리드 - 4열 레이아웃 */
.masonry-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--grid-gap);
    min-height: 400px;
    /* 깜빡임 방지 */
}

@media (max-width: 1200px) {
    .masonry-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 900px) {
    .masonry-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .masonry-grid {
        grid-template-columns: 1fr;
    }
}

/* 포트폴리오 아이템 */
.portfolio-item {
    break-inside: avoid;
    margin-bottom: var(--grid-gap);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    background-color: var(--color-white);
}

.portfolio-item img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform var(--transition-slow), filter var(--transition-medium);
}

/* 데스크탑 호버 효과 */
@media (hover: hover) {
    .portfolio-item:hover img {
        transform: scale(1.05);
        filter: brightness(0.8);
    }

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

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top,
            rgba(0, 0, 0, 0.8) 0%,
            rgba(0, 0, 0, 0) 60%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: var(--spacing-md);
    opacity: 0;
    transition: opacity var(--transition-medium);
}

/* 모바일: 터치 시 정보 표시 */
@media (hover: none) {
    .portfolio-overlay {
        opacity: 1;
        background: linear-gradient(to top,
                rgba(0, 0, 0, 0.7) 0%,
                rgba(0, 0, 0, 0) 50%);
    }
}

.portfolio-title {
    font-family: var(--font-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-white);
    margin-bottom: 2px;
    letter-spacing: 0.02em;
}

.portfolio-year {
    font-size: 0.7rem;
    color: rgba(255, 255, 255, 0.6);
    letter-spacing: 0.05em;
}

/* 포트폴리오 페이지네이션 */
.portfolio-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
}

.portfolio-pagination .page-btn {
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    border: 1px solid var(--color-muted);
    background: transparent;
    color: var(--color-muted);
    font-family: var(--font-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: 4px;
    transition: all var(--transition-fast);
}

.portfolio-pagination .page-btn:hover:not(:disabled) {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-white);
}

.portfolio-pagination .page-btn.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

.portfolio-pagination .page-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

@media (max-width: 768px) {
    .portfolio-pagination .page-btn {
        min-width: 36px;
        height: 36px;
        font-size: 0.8rem;
    }
}

/* ============================================
   [NEW] 모달 & 갤러리 스타일 (Re-written)
   ============================================ */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    padding: 20px;
}

/* 모달 배경 (오버레이) */
/* 모달 배경 (오버레이) */
.modal-backdrop-custom {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    z-index: 1;
    /* 배경 레이어 */
}

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

/* 모달 컨텐츠 박스 */
.modal-content {
    position: relative;
    background-color: #fff;
    width: 100%;
    max-width: 900px;
    max-height: 90vh;
    overflow-y: auto;
    z-index: 100;
    isolation: isolate;
    /* 스태킹 컨텍스트 분리 */
    user-select: none;
    /* 선택(드래그) 방지 */
    -webkit-user-select: none;
    /* 배경보다 위 */
    display: flex;
    flex-direction: column;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    /* 애니메이션 */
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

/* 이미지 드래그 방지 */
.modal-content img {
    -webkit-user-drag: none;
    user-drag: none;
}

.modal.active .modal-content {
    transform: translateY(0);
}

/* 닫기 버튼 */
.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    z-index: 100;
    /* 최상단 */
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #333;
    transition: background 0.2s;
}

.modal-close:hover {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.modal-close::before {
    content: '×';
    font-family: sans-serif;
    line-height: 1;
    position: absolute;
}

.modal-close::after {
    display: none;
}

/* 기존 스타일 무효화 */

/* Swiper 컨테이너 */
.modal-swiper {
    width: 100%;
    height: 60vh;
    /* 고정 높이 */
    min-height: 400px;
    background-color: #f8f9fa;
    /* 이미지 없을 때 회색 배경 */
    position: relative;
    overflow: hidden;
}

.swiper-slide {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.swiper-slide img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    display: block;
}

/* Swiper 네비게이션 */
.swiper-button-prev,
.swiper-button-next {
    color: #fff !important;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
    background: transparent !important;
    width: auto !important;
    height: auto !important;
    border: none !important;
    border-radius: 0 !important;
}

.swiper-button-prev::after,
.swiper-button-next::after {
    font-size: 2rem !important;
}

/* 모달 정보 섹션 */
.modal-info {
    padding: 30px;
    background: #fff;
}

.modal-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 5px;
    color: #111;
}

.modal-year {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 20px;
    display: block;
}

.modal-description {
    font-size: 1rem;
    line-height: 1.6;
    color: #444;
    white-space: pre-line;
    /* 줄바꿈 유지 */
}

/* 모바일 대응 */
@media (max-width: 768px) {
    .modal-swiper {
        height: 50vh;
        min-height: 250px;
    }

    .modal-info {
        padding: 20px;
    }

    .modal-title {
        font-size: 1.25rem;
    }
}



/* ============================================
   10. Contact 섹션
   ============================================ */
.contact-section {
    padding: var(--spacing-xl) var(--spacing-md);
    background-color: var(--color-white);
}

.contact-container {
    max-width: 600px;
    margin: 0 auto;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-group {
    position: relative;
}

.form-input {
    width: 100%;
    padding: var(--spacing-sm) 0;
    font-family: var(--font-secondary);
    font-size: var(--text-body);
    border: none;
    border-bottom: 1px solid var(--color-muted);
    background: transparent;
    transition: border-color var(--transition-fast);
    outline: none;
}

.form-input:focus {
    border-bottom-color: var(--color-primary);
}

.form-label {
    position: absolute;
    left: 0;
    top: var(--spacing-sm);
    font-size: var(--text-body);
    color: var(--color-muted);
    pointer-events: none;
    transition: all var(--transition-fast);
}

.form-input:focus+.form-label,
.form-input:not(:placeholder-shown)+.form-label {
    top: -8px;
    font-size: var(--text-small);
    color: var(--color-primary);
}

textarea.form-input {
    min-height: 120px;
    resize: vertical;
}

.submit-btn {
    align-self: flex-start;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: var(--font-secondary);
    font-size: var(--text-small);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    background-color: var(--color-primary);
    color: var(--color-white);
    border: none;
    cursor: pointer;
    transition: all var(--transition-medium);
}

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

/* ============================================
   11. Footer
   ============================================ */
.footer {
    padding: var(--spacing-lg) var(--spacing-md);
    background-color: var(--color-primary);
    color: var(--color-white);
    text-align: center;
}

.footer-text {
    font-size: var(--text-small);
    color: rgba(255, 255, 255, 0.6);
    letter-spacing: 0.1em;
}

/* ============================================
   12. 스크롤 애니메이션
   ============================================ */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.fade-in-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* ============================================
   13. 언어 스위처
   ============================================ */
.lang-switcher {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: var(--text-small);
    letter-spacing: 0.1em;
}

.lang-btn {
    background: none;
    border: none;
    font-family: var(--font-secondary);
    font-size: inherit;
    color: var(--color-muted);
    cursor: pointer;
    transition: color var(--transition-fast);
    padding: 4px;
}

.lang-btn.active {
    color: var(--color-primary);
    font-weight: 500;
}

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

.lang-divider {
    color: var(--color-muted);
}

/* ============================================
   14. 로딩 스피너
   ============================================ */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 3000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-medium);
}

.loading-overlay.active {
    opacity: 1;
    visibility: visible;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 2px solid var(--color-light);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loading-text {
    margin-top: var(--spacing-sm);
    font-size: var(--text-small);
    color: var(--color-muted);
    letter-spacing: 0.1em;
}

/* ============================================
   15. Admin 페이지 전용 스타일
   ============================================ */
.admin-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    background-color: var(--color-light);
}

.admin-card {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    width: 100%;
    max-width: 500px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.admin-title {
    font-size: var(--text-subtitle);
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

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

.admin-btn {
    width: 100%;
    padding: var(--spacing-sm);
    font-family: var(--font-secondary);
    font-size: var(--text-small);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    background-color: var(--color-primary);
    color: var(--color-white);
    border: none;
    cursor: pointer;
    transition: all var(--transition-medium);
}

.admin-btn:hover {
    background-color: var(--color-accent);
}

.admin-btn:disabled {
    background-color: var(--color-muted);
    cursor: not-allowed;
}

.upload-preview {
    width: 100%;
    max-height: 300px;
    object-fit: contain;
    margin-bottom: var(--spacing-sm);
    display: none;
}

.upload-preview.visible {
    display: block;
}

.progress-bar-container {
    width: 100%;
    height: 4px;
    background-color: var(--color-light);
    margin-top: var(--spacing-sm);
    overflow: hidden;
    display: none;
}

.progress-bar-container.visible {
    display: block;
}

.progress-bar {
    height: 100%;
    background-color: var(--color-primary);
    width: 0%;
    transition: width 0.3s ease;
}

.logout-btn {
    position: fixed;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: none;
    border: 1px solid var(--color-muted);
    padding: 8px 16px;
    font-size: var(--text-small);
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

/* 메시지 알림 */
.alert {
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: var(--text-small);
    text-align: center;
    border-radius: 4px;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
}

/* 파일 인풋 커스텀 */
.file-input-wrapper {
    position: relative;
    overflow: hidden;
}

.file-input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.file-input-label {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    border: 2px dashed var(--color-muted);
    text-align: center;
    font-size: var(--text-small);
    color: var(--color-muted);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.file-input-label:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* ============================================
   16. 유틸리티 클래스
   ============================================ */
.hidden {
    display: none !important;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* 바디 스크롤 잠금 (모달/메뉴 열릴 때) */
body.no-scroll {
    overflow: hidden;
}

/* ============================================
   17. 페이지 로드 애니메이션
   ============================================ */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-white);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.page-loader.loaded {
    opacity: 0;
    visibility: hidden;
}

.page-loader-text {
    font-family: var(--font-primary);
    font-size: var(--text-title);
    letter-spacing: 0.2em;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.4;
    }
}