body { 
    font-family: 'Segoe UI', Arial, sans-serif; 
    max-width: 800px; 
    margin: 0 auto; 
    padding: 20px; 
    background-color: #1e1e1e; 
    color: #e0e0e0; 
}
.upload-area { 
    border: 2px dashed #444; 
    padding: 40px; 
    text-align: center; 
    margin: 20px 0; 
    background-color: #252525; 
    border-radius: 8px; 
    transition: all 0.3s ease; 
}
.upload-area.dragover { 
    border-color: #0066cc; 
    background-color: #2a2a2a; 
}
button { 
    background: #0066cc; 
    color: white; 
    padding: 10px 20px; 
    border: none; 
    border-radius: 5px; 
    cursor: pointer; 
    transition: all 0.2s ease; 
}
button:hover { 
    background: #0055b3; 
    transform: translateY(-2px); 
    box-shadow: 0 4px 8px rgba(0,0,0,0.2); 
}
button:disabled { 
    background: #555; 
    cursor: not-allowed; 
    transform: none; 
    box-shadow: none; 
}
.results { 
    margin-top: 20px; 
    padding: 20px; 
    background: #252525; 
    border-radius: 8px; 
    box-shadow: 0 4px 12px rgba(0,0,0,0.2); 
}
.score { 
    font-size: 28px; 
    font-weight: bold; 
    margin: 15px 0; 
    text-align: center; 
}
.good { 
    color: #4caf50; 
    padding: 15px; 
    background: rgba(76, 175, 80, 0.1); 
    border-radius: 6px; 
    margin-bottom: 15px; 
}
.needs-improvement { 
    color: #f44336; 
    padding: 15px; 
    background: rgba(244, 67, 54, 0.1); 
    border-radius: 6px; 
}
.needs-improvement li { 
    margin-bottom: 15px; 
}
h1, h3, h4 { 
    color: #fff; 
    margin-top: 0; 
}
a { 
    color: #4d94ff; 
}
.loading-container { 
    display: none; 
    width: 100%; 
    text-align: center; 
    margin: 20px 0; 
}
.progress-bar { 
    width: 100%; 
    height: 12px; 
    background-color: #333; 
    border-radius: 6px; 
    overflow: hidden; 
}
.progress-fill { 
    height: 100%; 
    width: 0%; 
    background-color: #0066cc; 
    transition: width 0.2s; 
}
.loading-text { 
    margin-top: 10px; 
    color: #aaa; 
    font-size: 14px; 
}
ul { 
    padding-left: 20px; 
}
li { 
    margin-bottom: 8px; 
    line-height: 1.4; 
}
.timestamp { 
    color: #4d94ff; 
    cursor: pointer; 
    margin-left: 5px; 
    font-size: 14px; 
}
.timestamp:hover { 
    text-decoration: underline; 
}
.video-container { 
    margin: 20px 0; 
    background: #111; 
    border-radius: 8px; 
    overflow: hidden; 
    width: 320px; 
    height: 240px; 
}
.video-floating { 
    position: sticky; 
    top: 20px; 
    float: left; 
    margin-right: 20px; 
    margin-bottom: 20px; 
}
video { 
    width: 100%; 
    height: 100%; 
    object-fit: contain; 
    background: #000; 
}
.content-with-video { 
    margin-left: 340px; 
}
.results-container { 
    clear: both; 
}
@media (max-width: 768px) {
    .video-floating { 
        float: none; 
        position: static; 
        margin: 0 auto 20px auto; 
    }
    .content-with-video { 
        margin-left: 0; 
    }
}