:root {
    --bg-main: rgba(10, 10, 10, 0.95);
    --glass: rgba(255, 255, 255, 0.04);
    --border: rgba(255, 255, 255, 0.08);
    --accent: #a349a4;
    --text-main: #ffffff;
    --text-dim: #8e8e93;
    --radius-lg: 24px;
    --radius-md: 12px;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    box-sizing: border-box;
    -webkit-user-select: none;
    user-select: none;
    outline: none;
}

body {
    font-family: system-ui, -apple-system, sans-serif;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 5vh;
    color: #fff;
}

img {
    -webkit-user-drag: none;
    pointer-events: none;
}

.audio {
    background: #0000000a;
    width: 100%;
    height: 100%;
    max-width: 1000px;
    max-height: 1000px;
    display: flex;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    overflow: hidden;
    position: relative;
    width: auto;
    height: auto;
}

.player-container {
    flex: 1;
    padding: 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.cover-wrapper {
    width: 250px;
    height: 250px;
    background: rgba(255, 255, 255, 0.39);
    border-radius: 18px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    margin-bottom: 40px;
    border: 1px solid var(--border);
}

#cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.info {
    text-align: center;
    width: 100%;
    margin-bottom: 30px;
}

#title {
    font-size: 20px;
    font-weight: 800;
    margin-top: 0;
    letter-spacing: -0.5px;
    color: #ffffff;
}

#artist {
    font-size: 14px;
    color: #c9c9c9;
    margin-top: 6px;
    font-weight: 500;
}

audio {
    width: 100%;
    height: 26px;
    filter: invert(1) brightness(1.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    opacity: 0.5;
}

audio:hover {
    opacity: 0.9;
}

.upload-btn {
    width: 400px;
    max-width: 280px;
    height: 44px;
    margin-top: 25px;
    background: var(--glass);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-main);
    cursor: pointer;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.upload-btn:hover {
    background: #ffffff;
    color: #000000;
}

#playlist-side-display {
    width: 380px;
    background: rgba(255, 255, 255, 0.02);
    border-left: 1px solid var(--border);
    padding: 30px;
    display: flex;
    flex-direction: column;
}

.playlist-title {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-dim);
    margin-bottom: 20px;
    font-weight: 600;
}

#tracks-list {
    flex-grow: 1;
    overflow-y: auto;
    padding-right: 8px;
}

#tracks-list::-webkit-scrollbar {
    width: 3px;
}

#tracks-list::-webkit-scrollbar-thumb {
    background: #0000005a;
    border-radius: 10px;
}

.track-item {
    display: flex;
    align-items: center;
    padding: 10px;
    border-radius: 10px;
    transition: var(--transition);
    margin-bottom: 2px;
}

.track-item:hover {
    background: var(--glass);
}

.track-item.active {
    background: rgba(163, 73, 164, 0.15);
}

.track-item.active .track-title-mini {
    color: var(--accent);
}

.track-info-mini {
    flex: 1;
    overflow: hidden;
}

.track-title-mini {
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.track-artist-mini {
    font-size: 12px;
    color: var(--text-dim);
}

.track-actions {
    display: flex;
    gap: 8px;
    opacity: 0;
    transition: var(--transition);
}

.track-item:hover .track-actions {
    opacity: 1;
}

.action-btn {
    background: none;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    padding: 5px;
    transition: var(--transition);
}

.action-btn:hover {
    color: var(--text-main);
}

.filter-group {
    display: flex;
    gap: 8px;
    margin-bottom: 15px;
}

.filter-btn {
    background: var(--glass);
    border: 1px solid transparent;
    color: var(--text-dim);
    padding: 6px 16px;
    border-radius: 15px;
    font-size: 12px;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn.active {
    background: var(--accent);
    color: #fff;
}

.modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: #1c1c1e;
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 25px;
    width: 320px;
}

.input-group input {
    width: 100%;
    background: #000;
    border: 1px solid var(--border);
    padding: 12px;
    margin-bottom: 10px;
    border-radius: 10px;
    color: #fff;
    font-size: 15px;
    box-sizing: border-box;
}

.modal-actions {
    display: flex;
    gap: 10px;
}

#save-track {
    background: #fff;
    color: #000;
    border: none;
    flex: 1;
    padding: 12px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
}

.cancel-btn {
    background: var(--glass);
    color: #fff;
    border: 1px solid var(--border);
    flex: 1;
    padding: 12px;
    border-radius: 8px;
    cursor: pointer;
}

::-webkit-scrollbar {
    width: 6px;
    height: 6px;
    background: transparent;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}
* {
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.1) transparent;
}
@media (max-width: 100%) {
    .audio {
        border: none;
        background: transparent;
        height: 100%;
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 5px;
        overflow: hidden;
    }

    .cover-wrapper {
        width: 270px;
        height: 270px;
        background: rgba(255, 255, 255, 0.39);
        border-radius: 12px;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
        overflow: hidden;
        margin-bottom: 0;
        border: 1px solid var(--border);
        flex-shrink: 0;
    }

    .player-container {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 10px;
        width: 100%;
    }

    #title {
        font-size: 16px;
        font-weight: 600;
        margin: 0;
        letter-spacing: -0.3px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        width: 100%;
        text-align: center;
    }

    #artist {
        text-align: center;
        font-size: 16px;
        margin: 1px 0 4px 0;
        opacity: 0.9;
        font-weight: 400;
        width: 100%;
    }

    audio {
        width: 100%;
        height: 40px;
        filter: invert(1) brightness(1.2);
        opacity: 0.7;
        transition: var(--transition);
    }

    audio:hover {
        opacity: 1;
    }

    #playlist-side-display, 
    .playlist-title,
    .track-actions,
    #title::after {
        display: none !important;
    }
}

@media (max-height: 40px) {
    .audio {
        border: none;
        background: transparent;
        height: 100%;
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 5px;
        overflow: hidden;
    }

    .player-container {
        display: flex;
        flex-direction: row;
        align-items: center;
        justify-content: center;
        gap: 10px;
        width: 100%;
        height: 70px;
        padding: 0 10px;
    }

    .info {
        margin: 0;
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        justify-content: center;
        text-align: left;
        flex: 1;
        min-width: 0;
    }

    #title {
        font-size: 12px;
        font-weight: 600;
        margin: 0;
        letter-spacing: -0.3px;
        color: var(--text-main);
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        width: 100%;
    }

    #artist {
        font-size: 9px;
        margin: 1px 0 4px 0;
        color: var(--accent);
        opacity: 0.9;
        font-weight: 400;
    }

    audio {
        width: 300px;
        height: 29px;
        filter: invert(1) brightness(1.2);
        opacity: 0.7;
        transition: var(--transition);
    }

    audio:hover {
        opacity: 1;
    }

    .cover-wrapper,
    #playlist-side-display, 
    .upload-btn, 
    .playlist-title,
    .track-actions,
    #title::after,
    .player-container {
        display: none !important;
        opacity: 0;
    }
}