:root {
    --primary: #E50914; 
    --bg-color: #141414; 
    --box-bg: #2b2b2b;
    --text-main: #ffffff;
    --text-sub: #b3b3b3;
    --nav-bg: rgba(20,20,20,0.9);
    --border-color: #333;
    --input-bg: rgba(0,0,0,0.5);
    --search-grad-start: #2b2b2b;
    --search-grad-end: #141414;
    --card-hover: #666;
    --tag-bg: rgba(255,255,255,0.1);
    --tag-text: #ccc;
    --summary-bg: #1a1a1a;
}

[data-theme="light"] {
    --bg-color: #f5f5f7;
    --box-bg: #ffffff;
    --text-main: #1d1d1f;
    --text-sub: #86868b;
    --nav-bg: rgba(255,255,255,0.8);
    --border-color: #d2d2d7;
    --input-bg: #ffffff;
    --search-grad-start: #ffffff;
    --search-grad-end: #f5f5f7;
    --card-hover: #00bbf9;
    --tag-bg: #e8e8ed;
    --tag-text: #424245;
    --summary-bg: #f5f5f7;
}

body { 
    font-family: 'Pretendard Variable', sans-serif; 
    background-color: var(--bg-color); 
    margin: 0; 
    color: var(--text-main); 
    transition: background-color 0.3s, color 0.3s;
}
a { text-decoration: none; color: inherit; }
button { cursor: pointer; font-family: inherit; }

/* 상단 네비게이션 바 */
.navbar { 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    padding: 15px 40px; 
    background: var(--nav-bg); 
    backdrop-filter: blur(10px); 
    position: sticky; 
    top: 0; 
    z-index: 100; 
    border-bottom: 1px solid var(--border-color); 
    transition: background 0.3s, border-bottom 0.3s;
}
.logo { font-size: 2em; font-weight: 900; letter-spacing: -1px; display: flex; align-items: center; }
.logo span { display: inline-block; transition: transform 0.2s; }
.logo span:hover { transform: translateY(-3px); }
.nav-icons { display: flex; align-items: center; gap: 15px; }
.lang-select { 
    background: var(--tag-bg); 
    color: var(--text-main); 
    border: 1px solid var(--border-color); 
    padding: 8px 12px; 
    border-radius: 20px; 
    font-family: inherit; 
    font-size: 0.9em; 
    outline: none; 
    cursor: pointer; 
}
.lang-select option { background: var(--box-bg); color: var(--text-main); }
.nav-icons button { background: none; border: none; font-size: 1em; font-weight: 600; color: var(--text-main); transition: color 0.2s; }
.nav-icons button:hover { color: #00bbf9; }

/* 테마 토글 버튼 */
#theme-toggle {
    font-size: 1.2em;
    padding: 5px;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--tag-bg);
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}
#theme-toggle:hover {
    background: var(--border-color);
}

/* 무드(카테고리) 바 */
.category-bar { 
    display: flex; 
    gap: 15px; 
    padding: 15px 40px; 
    background: var(--bg-color); 
    overflow-x: auto; 
    white-space: nowrap; 
    font-size: 0.95em; 
    font-weight: 600; 
    color: var(--text-sub); 
    border-bottom: 1px solid var(--border-color); 
    transition: background 0.3s, border-bottom 0.3s;
}
.category-bar span { 
    cursor: pointer; 
    padding: 8px 16px; 
    background: var(--tag-bg); 
    border-radius: 20px; 
    transition: all 0.2s; 
}
.category-bar span:hover, .category-bar span.active { background: var(--text-main); color: var(--bg-color); }

/* 메인 레이아웃 */
.container { display: flex; max-width: 1200px; margin: 30px auto; padding: 0 20px; gap: 30px; }
.main-content { flex: 1; }
.sidebar { width: 250px; }
.sticky-box { 
    position: sticky; 
    top: 100px; 
    background: var(--box-bg); 
    padding: 20px; 
    border-radius: 12px; 
    transition: background 0.3s;
    border: 1px solid var(--border-color);
}
.sticky-box h3 { margin-top: 0; font-size: 1em; color: var(--text-main); }
.recent-item { 
    background: var(--tag-bg); 
    padding: 12px; 
    border-radius: 8px; 
    font-size: 0.85em; 
    margin-bottom: 10px; 
    color: var(--text-sub); 
    display: flex; 
    justify-content: space-between; 
    align-items: center;
}

/* 검색 영역 */
.search-area { 
    text-align: center; 
    margin-bottom: 40px; 
    padding: 60px 20px; 
    background: linear-gradient(to bottom, var(--search-grad-start), var(--search-grad-end)); 
    border-radius: 16px; 
    border: 1px solid var(--border-color); 
    transition: background 0.3s, border 0.3s;
}
.search-area h2 { margin-top: 0; font-size: 2.2em; font-weight: 900; }
.search-area p { color: var(--text-sub); margin-bottom: 30px; font-size: 1.1em; }
.input-group { display: flex; justify-content: center; gap: 10px; }
.input-group input { 
    width: 60%; 
    max-width: 500px; 
    padding: 16px 20px; 
    background: var(--input-bg); 
    border: 1px solid var(--border-color); 
    color: var(--text-main); 
    border-radius: 8px; 
    font-size: 1em; 
    outline: none; 
    transition: border-color 0.3s, background 0.3s;
}
.input-group input:focus { border-color: #00bbf9; } 
.input-group button { padding: 16px 30px; background: #00bbf9; color: white; border: none; border-radius: 8px; font-weight: bold; font-size: 1.1em; white-space: nowrap; }
.input-group button:hover { background: #00a0d6; }

/* 결과 카드 및 광고 */
#results { display: none; margin-top: 20px; }
.movie-card { 
    background: var(--box-bg); 
    padding: 25px; 
    margin-bottom: 20px; 
    border-radius: 12px; 
    display: flex; 
    flex-direction: column; 
    gap: 15px; 
    border: 1px solid var(--border-color); 
    transition: transform 0.2s, background 0.3s, border-color 0.3s; 
}
.movie-card:hover { transform: translateY(-3px); border-color: var(--card-hover); }
.card-header { display: flex; justify-content: space-between; align-items: flex-start; }
.movie-title { font-size: 1.5em; font-weight: 900; margin: 0; display: flex; align-items: center; gap: 10px; }
.match-rate { color: #46d369; font-size: 0.6em; font-weight: bold; }
.summary-box { 
    background: var(--summary-bg); 
    padding: 15px; 
    border-radius: 8px; 
    border-left: 4px solid #f15bb5; 
    transition: background 0.3s;
}
.summary-box p { margin: 5px 0; font-size: 0.95em; line-height: 1.6; }
.tags { display: flex; gap: 8px; flex-wrap: wrap; }
.tag { 
    background: var(--tag-bg); 
    padding: 5px 12px; 
    border-radius: 4px; 
    font-size: 0.8em; 
    color: var(--tag-text); 
}
.ad-banner { 
    background: var(--tag-bg); 
    width: 100%; 
    height: 90px; 
    display: flex; 
    justify-content: center; 
    align-items: center; 
    border-radius: 8px; 
    margin: 25px 0; 
    color: var(--text-sub); 
    font-size: 0.9em; 
    border: 1px dashed var(--border-color); 
    transition: background 0.3s, border 0.3s;
}

/* 맨 위로 가기 버튼 */
#scrollTopBtn { 
    display:none; 
    position:fixed; 
    bottom:30px; 
    right:30px; 
    z-index:99; 
    background:rgba(255,255,255,0.2); 
    color:white; 
    border:none; 
    padding:15px; 
    border-radius:50%; 
    backdrop-filter: blur(5px); 
    transition: background 0.3s; 
}
#scrollTopBtn:hover { background: #00bbf9; }