:root {
    /* 색상 팔레트 (사용자 정의) */
    --color-white-snow: #F0F0F0;
    --color-dark-brown-background: #2C1D1D; 
    --color-black-text: #1A1A1A; 
    --color-red-christmas: #72130F; 
    --color-green-christmas: #3a5a4a;
    --color-gold-accent: #B07B2D; 
    --color-button-dark-red: #72130F; 
    --shadow-light: 0 4px 10px rgba(0, 0, 0, 0.2);

    /* 폰트 설정 */
    --font-bangers: 'Bangers', cursive;
    --font-hahmlet: 'Hahmlet', serif; 
    --font-primary: var(--font-hahmlet); 
}

* {
    box-sizing: border-box;
}

body {
    background-color: var(--color-dark-brown-background); 
    color: var(--color-white-snow); 
    font-family: var(--font-primary);
    margin: 0;
    padding-top: 70px; 
    line-height: 1.6;
}

/* --- 공통 버튼 스타일 --- */
.button-red, .button-green {
    display: inline-block;
    padding: 10px 20px;
    text-decoration: none;
    font-weight: bold;
    border-radius: 5px;
    transition: background-color 0.3s, transform 0.2s;
    text-align: center;
    border: none;
    cursor: pointer;
}

.button-red {
    background-color: var(--color-button-dark-red); 
    color: var(--color-white-snow);
}
.button-red:hover {
    background-color: #5A0F0D;
    transform: translateY(-2px);
}

.button-green {
    background-color: var(--color-green-christmas);
    color: var(--color-white-snow);
}
.button-green:hover {
    background-color: #2F4738;
    transform: translateY(-2px);
}

/* --- 네비게이션 바 스타일 --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 70px;
    background-color: var(--color-black-text);
    box-shadow: var(--shadow-light);
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    height: 100%;
    padding: 0 20px;
}

.nav-logo a {
    color: var(--color-gold-accent); 
    font-size: 1.8em;
    font-weight: 900;
    text-decoration: none;
    letter-spacing: 2px;
    font-family: var(--font-bangers); 
}

.nav-links a {
    color: var(--color-white-snow);
    text-decoration: none;
    margin-left: 30px;
    font-size: 1em;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--color-green-christmas);
}

/* --- 눈 효과 (Snow Effect) 스타일 (FIXED) --- */
.snow-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none; 
    z-index: 999; 
    overflow: hidden;
}

.snowflake {
    position: absolute;
    width: 10px;
    height: 10px;
    background: #fff; 
    border-radius: 50%; 
    opacity: 0.8;
    filter: drop-shadow(0 0 5px rgba(255, 255, 255, 0.5));
    animation: fall linear infinite; 
}

@keyframes fall {
    0% {
        transform: translate3d(0, -100px, 0) rotate(0deg);
        opacity: 0.8;
    }
    100% {
        transform: translate3d(0, 100vh, 0) rotate(360deg);
        opacity: 0; 
    }
}

/* 5. 눈 토글 버튼 스타일 */
#snow-toggle {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1001; 
    padding: 10px 15px;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    font-size: 1.2em;
    font-weight: bold;
    background-color: var(--color-gold-accent);
    color: var(--color-black-text);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    border: none;
    cursor: pointer;
    transition: background-color 0.3s;
}

#snow-toggle:hover {
    background-color: #604d07;
}

/* 6. 음악 토글 버튼 스타일 (NEW) */
#music-toggle {
    position: fixed;
    bottom: 20px;
    right: 80px; /* 눈 토글 버튼의 왼쪽으로 띄웁니다 */
    z-index: 1001; 
    padding: 10px 15px;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    font-size: 1.2em;
    font-weight: bold;
    background-color: var(--color-green-christmas); 
    color: var(--color-white-snow);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    border: none;
    cursor: pointer;
    transition: background-color 0.3s;
}

#music-toggle:hover {
    background-color: #2F4738; 
}