/* 바이닐 레코드 스타일 */

:root {
    --vinyl-black: #1a1a1a;
    --vinyl-shine: #2a2a2a;
    --jacket-shadow: rgba(0, 0, 0, 0.3);
    --primary-color: #e74c3c;
    --text-color: #2c3e50;
}

/* 다크모드 CSS 변수 */
:root[data-theme="light"] {
    --bg-gradient-start: #f5f7fa;
    --bg-gradient-end: #c3cfe2;
    --tabs-bg: white;
    --tabs-shadow: rgba(0, 0, 0, 0.1);
    --tab-hover-bg: #ecf0f1;
    --tab-color: #7f8c8d;
    --border-color: #ecf0f1;
    --card-title-color: #2c3e50;
    --tag-bg: #ecf0f1;
    --tag-color: #7f8c8d;
    --empty-text-color: #95a5a6;
}

:root[data-theme="dark"] {
    --bg-gradient-start: #1a1a2e;
    --bg-gradient-end: #16213e;
    --tabs-bg: #2c2c2c;
    --tabs-shadow: rgba(0, 0, 0, 0.3);
    --tab-hover-bg: #3a3a3a;
    --tab-color: #b0b0b0;
    --border-color: #404040;
    --card-title-color: #e0e0e0;
    --tag-bg: #3a3a3a;
    --tag-color: #b0b0b0;
    --empty-text-color: #808080;
    --text-color: #e0e0e0;
}

body {
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    font-family: 'Helvetica Neue', Arial, sans-serif;
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem;
}

/* 탭 네비게이션 */
.tabs-container {
    background: var(--tabs-bg);
    border-radius: 12px;
    box-shadow: 0 4px 12px var(--tabs-shadow);
    padding: 1rem;
    margin-bottom: 2rem;
    position: sticky;
    top: 1rem;
    z-index: 100;
}

.tabs {
    display: flex;
    gap: 0.5rem;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.tab {
    flex: 1;
    padding: 1rem 2rem;
    background: transparent;
    border: none;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--tab-color);
    cursor: pointer;
    transition: all 0.3s;
    border-radius: 8px;
    text-align: center;
}

.tab:hover {
    background: var(--tab-hover-bg);
    color: var(--text-color);
}

.tab.active {
    background: var(--primary-color);
    color: white;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* 바이닐 그리드 */
.vinyl-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2.5rem;
    padding: 2rem 0;
}

/* 아이패드 최적화 */
@media (min-width: 768px) {
    .vinyl-grid {
        grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
        gap: 3rem;
    }
}

@media (min-width: 1024px) {
    .vinyl-grid {
        grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
        gap: 3.5rem;
    }
}

/* 바이닐 카드 */
.vinyl-card {
    position: relative;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.vinyl-card:hover {
    transform: translateY(-8px);
}

/* 자켓 (앨범 커버) */
.vinyl-jacket {
    position: relative;
    width: 100%;
    padding-top: 100%; /* 1:1 비율 */
    background: white;
    border-radius: 4px;
    box-shadow: 
        0 10px 30px var(--jacket-shadow),
        0 1px 8px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

.vinyl-jacket-inner {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.vinyl-jacket img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 자켓 오버레이 (제목 등) */
.vinyl-jacket-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.9), transparent);
    padding: 1.5rem 1rem;
    color: white;
    transform: translateY(100%);
    transition: transform 0.3s;
}

.vinyl-card:hover .vinyl-jacket-overlay {
    transform: translateY(0);
}

/* 바이닐 레코드 - 0.6 ~ 0.85 농도 (최적의 밸런스) */
.vinyl-record {
    position: absolute;
    right: -15%;
    top: 50%;
    transform: translateY(-50%);
    width: 90%;
    height: 90%;
    border-radius: 50%;
    
    /* 수정된 부분: 0.6 ~ 0.85 범위 */
    background: radial-gradient(
        circle at 30% 30%, 
        rgba(60, 60, 70, 0.6) 0%,     /* 빛 반사 부분: 0.6 (적당히 비침) */
        rgba(25, 25, 30, 0.75) 40%,   /* 중간 부분: 0.75 (무게감 더하기) */
        rgba(10, 10, 10, 0.85) 100%   /* 가장자리: 0.85 (윤곽 확실히) */
    );
    
    /* 적절한 블러 처리 */
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
    
    box-shadow: 
        -5px 5px 20px rgba(0, 0, 0, 0.5),
        inset -2px 2px 5px rgba(255, 255, 255, 0.12);
    transition: right 0.4s ease;
    z-index: 1;
}

.vinyl-card:hover .vinyl-record {
    right: -25%;
}

/* 레코드 중앙 라벨 (유지) */
.vinyl-label {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 35%;
    height: 35%;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(245, 245, 245, 0.95) 0%, rgba(213, 213, 213, 0.9) 100%);
    box-shadow: 
        0 0 0 2px rgba(26, 26, 26, 0.5),
        inset 0 2px 5px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
}

.vinyl-label::before {
    content: '';
    position: absolute;
    width: 15%;
    height: 15%;
    background: rgba(26, 26, 26, 0.8);
    border-radius: 50%;
}

/* 레코드 홈(grooves) - 배경 농도에 맞춰 0.07 유지 (가장 잘 보임) */
.vinyl-grooves {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    height: 90%;
    border-radius: 50%;
    background: repeating-radial-gradient(
        circle at center,
        transparent 0px,
        transparent 2px,
        rgba(255, 255, 255, 0.07) 2px,
        rgba(255, 255, 255, 0.07) 3px
    );
}

/* 카드 정보 */
.vinyl-info {
    margin-top: 1rem;
    text-align: center;
}

.vinyl-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--card-title-color);
    margin: 0.5rem 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.vinyl-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    margin-top: 0.5rem;
}

.vinyl-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--tag-bg);
    color: var(--tag-color);
    font-size: 0.85rem;
    border-radius: 12px;
}

.vinyl-tag.platform {
    background: #3498db;
    color: white;
}

.vinyl-tag.duration {
    background: #e74c3c;
    color: white;
}

/* 플레이 버튼 */
.vinyl-play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 70px;
    height: 70px;
    background: rgba(255, 255, 255, 0.95);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    z-index: 10;
}

.vinyl-card:hover .vinyl-play-btn {
    opacity: 1;
}

.vinyl-play-btn i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-left: 4px;
}

.vinyl-play-btn:hover {
    background: white;
    transform: translate(-50%, -50%) scale(1.1);
}

/* Limited Edition 배지 */
.vinyl-badge {
    position: absolute;
    top: -10px;
    left: -10px;
    width: 70px;
    height: 70px;
    background: #f1c40f;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.7rem;
    text-align: center;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    z-index: 20;
    line-height: 1.2;
    transform: rotate(-15deg);
}

/* 트랙 카운트 배지 */
.track-count-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    z-index: 15;
}

/* 반응형 - 모바일 */
@media (max-width: 767px) {
    .tabs {
        flex-direction: column;
    }
    
    .tab {
        padding: 0.75rem 1rem;
        font-size: 1rem;
    }
    
    .vinyl-grid {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
        gap: 2rem;
    }
    
    .vinyl-badge {
        width: 60px;
        height: 60px;
        font-size: 0.65rem;
    }
}

/* 아이패드 가로모드 최적화 */
@media (min-width: 1024px) and (orientation: landscape) {
    .vinyl-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .container {
        padding: 2rem;
    }
}

/* 로딩 상태 */
.vinyl-card.loading .vinyl-jacket-inner {
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* 빈 상태 */
.empty-vinyl-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--empty-text-color);
}

.empty-vinyl-state i {
    font-size: 5rem;
    margin-bottom: 1rem;
    opacity: 0.3;
}

.empty-vinyl-state h2 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
    color: var(--card-title-color);
}

.empty-vinyl-state p {
    font-size: 1.1rem;
    color: var(--empty-text-color);
}

/* 다크모드에서 이미지 밝기 조정 */
:root[data-theme="dark"] .vinyl-jacket img {
    opacity: 0.9;
}

/* 플레이스홀더 아이콘 */
.placeholder-icon {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: rgba(255, 255, 255, 0.3);
    opacity: 0.5;
}