/* Furin Player Skin */
.bgm-furin {
    --furin-glass: color-mix(in srgb, var(--container-bg-color) 35%, transparent);
    position: fixed;
    top: 60px;
    right: var(--spacing-lg);
    z-index: 9999;
    font-family: var(--f-pre);
    user-select: none;
    opacity: 0;
    transform: translateY(-80px);
    transition: transform var(--transition-base), opacity var(--transition-base);
}
.bgm-furin.show { opacity: 1; transform: translateY(0); }

/* 본체 */
.furin-body {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    transform-origin: top center;
    animation: furin-sway 5s ease-in-out infinite alternate;
}

/* 유리 구슬 버튼 */
.furin-bead {
    position: absolute;
    top: -20px;
    z-index: 3;
    width: 18px;
    height: 18px;
    background:
        radial-gradient(50% 40% at 30% 30%, rgba(255,255,255,.9), transparent 60%),
        radial-gradient(70% 60% at 70% 80%, rgba(255,255,255,.25), transparent 70%),
        rgba(255,255,255,.25);
    border: 1px solid rgba(255,255,255,.6);
    border-radius: 50%;
    box-shadow: 0 4px 10px rgba(0,0,0,.2), inset 0 0 10px rgba(255,255,255,.5);
    cursor: pointer;
}
.furin-bead:active { transform: translateY(1px) scale(.98); }

/* 미니 리스트 버튼 */
.furin-list-btn {
    position: absolute;
    top: 18px;
    z-index: 3;
    display: none;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    background: rgba(0,0,0,.08);
    border: 0;
    border-radius: 8px;
    color: var(--content-font-color);
    cursor: pointer;
}
.bgm-furin.minimized .furin-list-btn { display: flex; }
.bgm-furin.minimized .furin-list-btn:active { transform: translateY(1px) scale(.98); }

/* 줄 */
.furin-rope {
    position: absolute;
    top: -60px;
    width: 1px;
    height: 180px;
    background: var(--primary-color);
    border-radius: 999px;
}

/* 종 */
.furin-bell {
    position: relative;
    width: 80px;
    height: 70px;
    margin-top: 6px;
    background: var(--furin-glass);
    border: 1px solid var(--container-bg-color);
    border-radius: 50% 50% 42% 42%;
    box-shadow: 0 8px 18px rgba(0,0,0,.18);
    backdrop-filter: blur(6px);
    overflow: hidden;
}
.furin-thumb {
    position: absolute;
    inset: 10px;
    width: calc(100% - 20px);
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    opacity: .85;
    filter: saturate(1.05);
}
.furin-glass {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(255,255,255,.2), transparent 60%);
    pointer-events: none;
}
.furin-shine {
    position: absolute;
    inset: -10%;
    background:
        radial-gradient(45% 35% at 35% 20%, rgba(255,255,255,.55), transparent 60%),
        radial-gradient(40% 30% at 70% 35%, rgba(255,255,255,.25), transparent 65%);
    opacity: .8;
    pointer-events: none;
}
.furin-clapper {
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    width: 10px;
    height: 10px;
    background: var(--secondary-color);
    border-radius: 50%;
    box-shadow: 0 3px 10px rgba(0,0,0,.25);
}

/* 탄자쿠 */
.furin-tanzaku {
    margin-top: 16px;
    width: 92px;
    padding: 10px 10px 12px;
    background: var(--container-bg-color);
    border: 1px solid rgba(0,0,0,.1);
    border-radius: 10px;
    box-shadow: 0 12px 30px rgba(0,0,0,.14);
    backdrop-filter: blur(3px);
    text-align: center;
    transform-origin: top center;
    animation: furin-flap 3.5s ease-in-out infinite alternate;
}
.furin-title { font-size: 10px; font-weight: 700; letter-spacing: .14em; color: var(--title-font-color); }
.furin-track { margin-top: 9px; font-size: 8px; font-weight: 800; line-height: 1.7; color: var(--content-font-color); word-break: break-word; }

/* 컨트롤 */
.furin-controls { display: grid; grid-template-columns: repeat(3, 1fr); gap: 3px; margin-top: 8px; }
.furin-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 24px;
    background: rgba(0,0,0,.04);
    border: 0;
    border-radius: 8px;
    color: var(--content-font-color);
    font-size: 11px;
    cursor: pointer;
}
.furin-btn.play { background: rgba(0,0,0,.08); }
.furin-btn.mode.active { background: rgba(0,0,0,.12); }
.furin-btn:disabled { opacity: .45; cursor: default; }

/* 볼륨 */
.furin-vol {
    width: 100%;
    height: 6px;
    margin-top: 8px;
    background: rgba(0,0,0,.2);
    border-radius: 999px;
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}
.furin-vol::-webkit-slider-runnable-track { height: 6px; background: rgba(0,0,0,.2); border-radius: 999px; }
.furin-vol::-webkit-slider-thumb {
    width: 14px;
    height: 14px;
    margin-top: -4px;
    background: var(--primary-color);
    border: 1px solid var(--primary-color);
    border-radius: 50%;
    box-shadow: 0 2px 6px rgba(0,0,0,.2);
    -webkit-appearance: none;
}
.furin-vol::-moz-range-track { height: 6px; background: var(--card-bg-color); border-radius: 999px; }
.furin-vol::-moz-range-progress { height: 6px; background: var(--secondary-color); border-radius: 999px; }
.furin-vol::-moz-range-thumb {
    width: 14px;
    height: 14px;
    background: var(--primary-color);
    border: 2px solid var(--accent-color);
    border-radius: 50%;
    box-shadow: 0 2px 6px rgba(0,0,0,.2);
}

/* 플레이리스트 */
.playlist-container {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    z-index: 4;
    width: 90px;
    max-height: 180px;
    margin-top: 12px;
    background: var(--container-bg-color);
    border: 1px solid rgba(0,0,0,.08);
    border-radius: 10px;
    box-shadow: 0 10px 24px rgba(0,0,0,.15);
    overflow: auto;
}
.playlist { list-style: none; margin: 0; padding: 8px; font-size: 8px; color: var(--content-font-color); }
.playlist li {
    max-width: 70px;
    padding: 6px 8px;
    border-radius: 6px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    cursor: pointer;
}
.playlist li.current { background: rgba(0,0,0,.06); font-weight: 700; }

/* 최소화 */
.bgm-furin.minimized .furin-tanzaku { display: none; }
.bgm-furin.minimized .furin-rope { height: 120px; }
.bgm-furin.minimized .furin-bell { width: 64px; height: 56px; }
.bgm-furin.minimized .furin-thumb { inset: 8px; width: calc(100% - 16px); height: calc(100% - 16px); }
.minimized-overlay { position: absolute; inset: 0; z-index: 2; display: none; border-radius: 12px; cursor: pointer; }
.volume-popup { display: none !important; }

/* 재생 상태 */
.bgm-furin.playing .furin-body { animation-duration: 2.6s; }
.bgm-furin.playing .furin-tanzaku { animation-duration: 1.8s; }
.bgm-furin.playing .furin-clapper { animation: furin-clink .45s ease-in-out infinite alternate; }
.bgm-furin:not(.playing) .furin-clapper { opacity: .75; }

/* 애니메이션 */
@keyframes furin-sway { from { transform: rotate(-4deg); } to { transform: rotate(4deg); } }
@keyframes furin-flap { from { transform: rotate(6deg); } to { transform: rotate(-6deg); } }
@keyframes furin-clink { from { transform: translateX(-50%); } to { transform: translateX(-50%) translateY(4px); } }

/* 반응형 */
@media (max-width: 768px) {
    .bgm-furin { right: auto; left: var(--spacing-lg); }
}