/* 공통 설정 */
* { margin: 0; padding: 0; box-sizing: border-box; user-select: none; -webkit-user-select: none; }
body {
    font-family: 'Jua', sans-serif;
    background-color: #fff3e0; /* 전체 배경색 */
    height: 100vh;
    display: flex; flex-direction: column;
    overflow: hidden; /* 스크롤 방지 */
}

/* === 헤더 스타일 === */
header {
    background: #ffffff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: relative; z-index: 100;
}

.header-inner {
    height: 60px;
    display: flex; justify-content: space-between; align-items: center;
    padding: 0 20px;
}

.logo img { height: 40px; display: block; }

/* 소셜 아이콘 (PC) */
.social-nav { display: flex; gap: 15px; }
.social-nav a img { width: 30px; height: 30px; transition: 0.2s; }
.social-nav a:hover img { transform: scale(1.1); }

/* 햄버거 버튼 (기본 숨김) */
.menu-trigger {
    display: none; width: 30px; height: 20px;
    flex-direction: column; justify-content: space-between;
    cursor: pointer;
}
.menu-trigger span {
    display: block; width: 100%; height: 3px;
    background: #333; border-radius: 3px; transition: 0.3s;
}
/* 햄버거 X자 변신 */
.menu-trigger.active span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.menu-trigger.active span:nth-child(2) { opacity: 0; }
.menu-trigger.active span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }

/* 모바일 메뉴 (기본 숨김) */
.mobile-menu {
    display: none; /* JS로 토글 */
    background: #fff;
    border-top: 1px solid #eee;
    padding: 10px 0;
    position: absolute; width: 100%; top: 60px; left: 0;
    flex-direction: column; align-items: center;
    box-shadow: 0 5px 10px rgba(0,0,0,0.05);
}
.mobile-menu.active { display: flex; }
.mobile-menu a {
    display: flex; align-items: center; gap: 10px;
    padding: 15px; width: 100%; justify-content: center;
    text-decoration: none; color: #333; font-size: 1.2rem;
}
.mobile-menu a img { width: 30px; }

/* === 반응형 (모바일) 설정 === */
@media screen and (max-width: 768px) {
    .social-nav { display: none; } /* PC 메뉴 숨김 */
    .menu-trigger { display: flex; } /* 햄버거 보임 */
}

/* === 게임 영역 스타일 === */
.game-container {
    /* flex: 1;  <-- 이거 삭제 (범인) */
    position: relative;
    
    /* PC 화면 설정: 스마트폰 비율 유지 */
    width: 100%;
    max-width: 450px;       /* 적당한 너비 */
    height: 80vh;           /* 화면의 80%만 차지 */
    aspect-ratio: 9 / 16;   /* 9:16 비율 고정 */
    margin: 20px auto;      /* 중앙 정렬 */
    
    background: rgba(255,255,255,0.5);
    border: 2px solid #ddd; 
    border-radius: 20px;    /* 둥근 모서리 */
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    overflow: hidden;       /* 튀어나감 방지 */
}

/* 모바일 전용 설정 (화면이 작을 때) */
@media screen and (max-width: 768px) {
    .game-container {
        width: 100%;
        max-width: 100%;
        height: calc(100vh - 60px); /* 헤더(60px) 뺀 나머지 꽉 채우기 */
        aspect-ratio: auto;         /* 비율 해제 */
        margin: 0;
        border: none;
        border-radius: 0;
    }
}

/* [추가] 닉네임 입력창 스타일 */
.input-area {
    margin-bottom: 20px;
    width: 80%;
    max-width: 300px;
}

#nickname {
    width: 100%;
    padding: 12px 20px;
    font-size: 1.2rem;
    font-family: 'Jua', sans-serif; /* 폰트 통일 */
    border: 3px solid #ffcc80;
    border-radius: 50px;
    text-align: center;
    outline: none;
    color: #5d4037;
    background: #fff;
    transition: 0.3s;
}

#nickname:focus {
    border-color: #ef5350; /* 포커스 시 붉은색 강조 */
    box-shadow: 0 0 10px rgba(239, 83, 80, 0.2);
}

/* 랭킹 아이템 스타일 보강 */
.rank-item {
    font-size: 1.1rem;
    margin: 8px 0;
    color: #555;
    border-bottom: 1px dashed #ccc;
    padding-bottom: 5px;
    display: flex;             /* 좌우 정렬 */
    justify-content: center;   /* 중앙 정렬 */
    gap: 10px;                 /* 간격 */
}
.rank-name { color: #333; font-weight: bold; }
.rank-score { color: #e53935; }

#game-area { width: 100%; height: 100%; }

.score-board {
    position: absolute; top: 15px; left: 15px;
    font-size: 1.5rem; color: #5d4037; font-weight: bold; z-index: 10;
}

#ui-layer {
    position: absolute; top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(255,248,225, 0.95);
    display: flex; flex-direction: column;
    justify-content: center; align-items: center;
    z-index: 20; transition: 0.3s;
}
#ui-layer.hidden { opacity: 0; pointer-events: none; }

.game-title { font-size: 3rem; color: #ef5350; margin-bottom: 20px; }
#start-btn {
    padding: 15px 50px; font-size: 1.5rem; font-family: 'Jua';
    background: #66bb6a; color: white; border: none; border-radius: 50px;
    cursor: pointer; box-shadow: 0 5px 0 #388e3c;
}
#start-btn:active { transform: translateY(5px); box-shadow: none; }

#rank-display { margin-bottom: 30px; text-align: center; width: 80%; }
.rank-item { font-size: 1.2rem; margin: 8px 0; color: #555; border-bottom: 1px dashed #ccc; padding-bottom: 5px;}
.rank-1 { color: #fbc02d; font-weight: bold; font-size: 1.4rem; }