* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;

    font-family: 'Inter', sans-serif;
}

/* BODY */

body {

    min-height: 100vh;

    background:
        linear-gradient(135deg,
            #020617,
            #071a13,
            #0f172a);

    color: white;

    overflow: hidden;

    display: flex;
    justify-content: center;
    align-items: center;
}

/* MAIN CONTAINER */

.player-container {

    width: 92%;

    height: 90vh;

    background:
        rgba(255, 255, 255, 0.05);

    border:
        1px solid rgba(255, 255, 255, 0.08);

    border-radius: 30px;

    backdrop-filter: blur(20px);

    display: flex;

    overflow: hidden;

    box-shadow:
        0 10px 40px rgba(0, 0, 0, 0.45);
}

/* PLAYLIST */

.playlist {

    width: 320px;

    background:
        rgba(255, 255, 255, 0.03);

    padding: 30px;

    border-right:
        1px solid rgba(255, 255, 255, 0.06);

    overflow-y: auto;
}

/* PLAYLIST SCROLLBAR */

.playlist::-webkit-scrollbar {

    width: 6px;
}

.playlist::-webkit-scrollbar-thumb {

    background:
        rgba(16, 185, 129, 0.35);

    border-radius: 20px;
}

.playlist h2 {

    margin-bottom: 30px;

    font-size: 1.5rem;

    font-weight: 600;

    color: #f8fafc;
}

.playlist ul {

    list-style: none;
}

/* ================= PLAYLIST ITEM ================= */

.playlist-item {

    display: flex;

    align-items: center;

    gap: 15px;

    padding: 14px;

    margin-bottom: 16px;

    border-radius: 18px;

    cursor: pointer;

    transition: 0.3s ease;
}

.playlist-item:hover {

    background:
        rgba(255, 255, 255, 0.07);

    transform: translateX(5px);
}

/* ACTIVE ITEM */

.playlist-item.active {

    background:
        rgba(16, 185, 129, 0.2);

    box-shadow:
        0 0 18px rgba(16, 185, 129, 0.2);
}

/* IMAGE FIX */

.playlist-item img {

    width: 65px;

    height: 65px;

    border-radius: 16px;

    object-fit: cover;

    flex-shrink: 0;
}

.playlist-item h4 {

    font-size: 0.95rem;

    margin-bottom: 6px;

    font-weight: 500;
}

.playlist-item p {

    font-size: 0.8rem;

    color: #cbd5e1;
}

/* PLAYER SECTION */

.player {

    flex: 1;

    display: flex;

    flex-direction: column;

    justify-content: center;

    align-items: center;

    padding: 40px;
}

/*  MAIN COVER */

.cover-container {

    width: 320px;

    height: 320px;

    border-radius: 30px;

    overflow: hidden;

    margin-bottom: 30px;

    box-shadow:
        0 15px 40px rgba(0, 0, 0, 0.45);
}

/* MAIN IMAGE */

.main-cover {

    width: 100%;

    height: 100%;

    object-fit: cover;

    transition: 0.4s ease;
}

/* ROTATE EFFECT */

.main-cover.playing {

    animation: rotateCover 12s linear infinite;
}

/* TRACK INFO */

.track-info {

    text-align: center;

    margin-bottom: 30px;
}

.track-title {

    font-size: 2rem;

    margin-bottom: 10px;

    font-weight: 700;
}

.track-artist {

    color: #cbd5e1;

    font-size: 0.95rem;
}

/* PROGRESS AREA */

.progress-area {

    width: 100%;

    max-width: 520px;

    display: flex;

    align-items: center;

    gap: 15px;

    margin-bottom: 35px;
}

/* RANGE BAR */

.progress-bar {

    flex: 1;

    cursor: pointer;

    accent-color: #10b981;
}

/* TIME */

.current-time,
.duration {

    font-size: 0.9rem;

    color: #cbd5e1;
}

/* CONTROLS */

.controls {

    display: flex;

    gap: 22px;

    margin-bottom: 30px;
}

/* CONTROL BUTTONS */

.controls button {

    width: 72px;

    height: 72px;

    border: none;

    border-radius: 50%;

    background:
        rgba(255, 255, 255, 0.08);

    color: white;

    font-size: 1.5rem;

    cursor: pointer;

    transition: 0.3s ease;

    backdrop-filter: blur(10px);
}

/* BUTTON HOVER */

.controls button:hover {

    transform: scale(1.08);

    background:
        rgba(16, 185, 129, 0.25);

    box-shadow:
        0 0 20px rgba(16, 185, 129, 0.3);
}

/* PLAY BUTTON */

.play-btn {

    background:
        rgba(16, 185, 129, 0.18) !important;
}

/* VOLUME */

.volume-container {

    width: 260px;

    display: flex;

    align-items: center;

    gap: 15px;
}

.volume-slider {

    flex: 1;

    accent-color: #10b981;

    cursor: pointer;
}

/* ANIMATION */

@keyframes rotateCover {

    from {

        transform: rotate(0deg);
    }

    to {

        transform: rotate(360deg);
    }
}

/* RESPONSIVE */

@media(max-width:950px) {

    body {

        overflow-y: auto;
    }

    .player-container {

        flex-direction: column;

        height: auto;

        margin: 30px 0;
    }

    .playlist {

        width: 100%;

        border-right: none;

        border-bottom:
            1px solid rgba(255, 255, 255, 0.08);
    }

    .player {

        padding: 35px 20px;
    }

    .cover-container {

        width: 260px;

        height: 260px;
    }

    .track-title {

        font-size: 1.5rem;
    }

    .controls button {

        width: 62px;

        height: 62px;
    }
}