/* ---- Global Variables ---- */
:root {
    --bg-color: #0a0a12;
    --card-bg: rgba(255, 255, 255, 0.05);
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --accent-neon: #00f2ff;
    --accent-purple: #bd00ff;
    --accent-pink: #ff0055;
    --accent-gold: #ffd700;
}

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

body {
    font-family: 'Montserrat', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* 배경 효과 */
body::before {
    content: "";
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: 
        radial-gradient(circle at 20% 30%, rgba(255, 0, 85, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(0, 242, 255, 0.08) 0%, transparent 50%);
    z-index: -2;
}

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

/* ---- Image Styles ---- */
.img-container {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    overflow: hidden;
    position: relative;
}

    

.alt-text {
    position: absolute;
    color: rgba(255,255,255,0.2);
    font-family: 'Fira Code', monospace;
    font-size: 0.9rem;
    z-index: -1;
}

/* ---- Navigation ---- */
.nav-bar {
    padding: 20px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    backdrop-filter: blur(10px);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    background: rgba(10, 10, 18, 0.8);
}
.nav-logo { font-weight: 900; font-size: 1.2rem; letter-spacing: 2px; }
.back-link { font-family: 'Fira Code', monospace; font-size: 0.9rem; color: var(--text-secondary); }
.back-link:hover { color: var(--accent-neon); }

/* ---- Hero Section ---- */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 100px 20px 60px;
    position: relative;
}

.hero-content { z-index: 2; max-width: 900px; width: 100%; }

.game-title {
    font-size: 4rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 20px;
    text-shadow: 0 0 20px rgba(255, 0, 85, 0.5);
}
.game-title span { color: var(--accent-pink); }

#hero-banner-area {
    width: 100%;
    aspect-ratio: 16 / 9;
    max-height: 450px;
    margin: 30px auto;
    border-radius: 20px;
    box-shadow: 0 0 30px rgba(255, 0, 85, 0.2);
}

/* ---- Feature Section ---- */
.section { padding: 80px 10%; }

.section-title {
    font-size: 2.5rem;
    margin-bottom: 50px;
    text-align: center;
    position: relative;
}
.section-title span::after {
        content: '';
        position: absolute;
        bottom: -10px; left: 50%;
        transform: translateX(-50%);
        width: 50px; height: 3px;
        background: var(--accent-neon);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 20px;
    text-align: left;
    border: 1px solid rgba(255,255,255,0.05);
    transition: 0.3s;
    position: relative;
    overflow: hidden;
}
.feature-card:hover { transform: translateY(-5px); }
.feature-card h3 { 
    /* 1. 영문/숫자 최우선 적용 */
    /* 2. 한국어 (프리텐다드 -> 본고딕 -> 맑은고딕) */
    /* 3. 일본어 (본고딕 -> 메이리오) */
    /* 4. 중화권 (본고딕 -> 정헤이) */
    /* 5. 태국어/힌디어 등 특수 문자열 대응 */
    /* 6. 그 외 모든 언어의 OS 기본 폰트 (최종 방어선) */
    font-family: 'Fira Code', 
                 'Pretendard', 'Noto Sans KR', 'Malgun Gothic', 
                 'Noto Sans JP', 'Meiryo', 
                 'Noto Sans TC', 'Microsoft JhengHei', 
                 'Noto Sans Thai', 'Leelawadee UI', 
                 'Noto Sans Devanagari', 
                 sans-serif; 

    font-size: 1.4rem; 
    margin-bottom: 10px; 
    
    /* 영문 알파벳을 모두 대문자로 (한글/아시아권 언어는 알아서 무시되므로 안전합니다!) */
    text-transform: uppercase; 
}
.feature-card .subtitle { font-size: 0.9rem; font-weight: bold; color: #fff; margin-bottom: 10px; display: block; opacity: 0.9; }
.feature-card p { color: var(--text-secondary); font-size: 0.95rem; line-height: 1.5; }

/* ★★★ Responsive Gallery (PC Arrow + Mobile Swipe) ★★★ */
.gallery-wrapper {
    position: relative;
    width: 100%;
    max-width: 1400px; /* PC에서 너무 퍼지지 않게 */
    margin: 0 auto;
    display: flex;
    align-items: center;
}

/* 갤러리 컨테이너 */
#screenshot-gallery {
    display: flex;
    overflow-x: auto;
    gap: 20px; /* 아이템 간격은 여기서만 컨트롤 */
    padding: 20px;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    width: 100%;
}
#screenshot-gallery::-webkit-scrollbar { display: none; }

/* ---- 스크린샷 아이템 (부모 틀) ---- */
.screenshot-item {
    flex: 0 0 auto;
    height: 350px; 
    /* [핵심] 여기서 2796:1290 비율을 미리 잡아줌 (브라우저 계산 오류 및 잘림 원천 차단) */
    aspect-ratio: 2796 / 1290; 
    border-radius: 15px;
    scroll-snap-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    background: #1a1a2e;
    overflow: hidden;
    position: relative;
}

/* ---- 이미지 채우기 (중복 코드 싹 지우고 딱 하나만 남길 것) ---- */
.fill-img {
    width: 100%;
    height: 100%;
    /* 부모 틀 안에서 절대 잘리지 않고 원본 비율 맞춰서 들어감 */
    object-fit: contain; 
    display: block;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.fill-img.loaded {
    opacity: 1;
}

/* 모바일 대응 */
@media (max-width: 768px) {
    .screenshot-item {
        width: 85vw; /* 모바일 화면 가로 넓이의 85%만 차지하게 강제 (절대 안 짤림) */
        height: auto; /* 높이는 2796:1290 비율에 맞춰서 브라우저가 알아서 줄임 */
    }
}

/* PC용 화살표 버튼 */
.scroll-btn {
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid var(--accent-neon);
    color: var(--accent-neon);
    width: 50px; height: 50px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 10;
    transition: 0.3s;
    display: none; /* 모바일에선 숨김 */
    flex-shrink: 0;
    align-items: center;
    justify-content: center;
}
.scroll-btn:hover { background: var(--accent-neon); color: black; box-shadow: 0 0 15px var(--accent-neon); }

/* PC 화면(768px 이상)일 때만 화살표 보이기 & 아이템 크기 조정 */
@media (min-width: 769px) {
    .scroll-btn { display: flex; } /* PC에선 화살표 보임 */
    .screenshot-item { width: 45%; } /* PC에선 한 번에 2개 정도 보이게 */
}


/* ---- Download Section ---- */
.download-section {
    background: linear-gradient(180deg, transparent, rgba(255, 0, 85, 0.1));
    text-align: center;
    padding: 100px 20px;
    margin-top: 50px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 15px 40px;
    background: var(--accent-pink);
    color: white;
    border-radius: 50px;
    font-weight: 900;
    font-size: 1.1rem;
    margin: 10px;
    box-shadow: 0 0 20px rgba(255, 0, 85, 0.3);
    transition: 0.3s;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: none;
    cursor: pointer;
}
.btn:hover { transform: scale(1.05); box-shadow: 0 0 40px rgba(255, 0, 85, 0.6); }

.btn-google {
    background: transparent;
    border: 2px solid var(--accent-neon);
    color: var(--accent-neon);
    box-shadow: none;
}
.btn-google:hover {
    background: var(--accent-neon);
    color: var(--bg-color);
    box-shadow: 0 0 20px var(--accent-neon);
}

.store-icon { margin-right: 10px; font-size: 1.3rem; }

footer {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
    font-family: 'Fira Code', monospace;
    font-size: 0.8rem;
    border-top: 1px solid rgba(255,255,255,0.05);
    background: rgba(0,0,0,0.2);
}

        /* ---- Official Store Badge Style ---- */
.store-badge {
    height: 60px; /* 배지 높이 고정 (조절 가능) */
    width: auto;
    transition: transform 0.3s ease, filter 0.3s ease;
    cursor: pointer;
    margin: 10px;
    filter: drop-shadow(0 4px 6px rgba(0,0,0,0.3)); /* 그림자 */
}

.store-badge:hover {
    transform: scale(1.05); /* 호버 시 살짝 커짐 */
    filter: drop-shadow(0 0 15px rgba(255, 255, 255, 0.4)); /* 빛나는 효과 */
}
/* 다국어 SEO 전용 푸터 링크 */
.lang-links {
    text-align: center;
    padding: 20px 10px;
    font-size: 0.8rem;
    color: #666; 
    line-height: 2;
    margin-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1); /* 얇은 구분선 */
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px 15px; /* 단어 사이 간격 */
}

.lang-links a {
    color: #888;
    text-decoration: none;
    transition: color 0.3s ease;
}

.lang-links a:hover {
    color: #fff; /* 마우스 올리면 밝아짐 */
}