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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f5f5f5;
    padding-bottom: 100px;
}

.sidebar {
    background: #2c3e50;
    color: white;
    min-height: calc(100vh - 100px);
    padding: 20px;
}

.logo {
    cursor: pointer;
    padding: 15px;
    background: #34495e;
    border-radius: 5px;
    margin-bottom: 20px;
    user-select: none;
}

.logo:hover {
    background: #3e5871;
}

.blog-section {
    margin-bottom: 30px;
    padding: 15px;
    background: rgba(255,255,255,0.1);
    border-radius: 5px;
}

.blog-section h4 {
    margin-bottom: 15px;
}

.post {
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(255,255,255,0.2);
}

.post small {
    color: #bdc3c7;
}

.albums-section h4 {
    margin-bottom: 15px;
}

.album-item {
    background: rgba(255,255,255,0.1);
    margin-bottom: 10px;
    border-radius: 5px;
    overflow: hidden;
}

.album-header {
    padding: 15px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.album-header:hover {
    background: rgba(255,255,255,0.2);
}

.album-songs {
    display: none;
    background: rgba(0,0,0,0.2);
}

.album-songs.active {
    display: block;
}

.song-item {
    padding: 12px 15px 12px 30px;
    cursor: pointer;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.song-item:hover {
    background: rgba(52, 152, 219, 0.3);
}

.song-item:last-child {
    border-bottom: none;
}

.song-item.playing {
    background: rgba(46, 204, 113, 0.3);
}

.main-content {
    padding: 40px;
}

.main-content h1 {
    color: #2c3e50;
    margin-bottom: 20px;
}

.player-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to right, #2c3e50, #3498db);
    color: white;
    padding: 15px 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.3);
}

.player-info {
    flex: 1;
    margin-right: 20px;
}

.player-controls {
    display: flex;
    gap: 10px;
    margin-right: 20px;
}

.player-progress {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-right: 20px;
}

.progress-slider {
    width: 200px;
}

.player-volume {
    display: flex;
    align-items: center;
    gap: 5px;
}

.volume-slider {
    width: 80px;
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-content {
    background: white;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
}

.modal-content input {
    width: 100%;
    padding: 10px;
    margin: 15px 0;
    border: 1px solid #ddd;
    border-radius: 5px;
}

#video-player {
    width: 100%;
    max-width: 800px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.3);
}

#audio-player {
    position: absolute;
    visibility: hidden;
    width: 0;
    height: 0;
}

#media-display {
    display: none;
}

#video-player-display {
    width: 100%;
    max-width: 800px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.3);
}