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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    padding: 30px;
}

h1 {
    color: #333;
    text-align: center;
    margin-bottom: 10px;
    font-size: 2.5em;
}

.subtitle {
    text-align: center;
    color: #666;
    margin-bottom: 30px;
    font-size: 1.1em;
}

.controls {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.control-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

label {
    font-weight: 600;
    color: #333;
}

select {
    padding: 10px 15px;
    border: 2px solid #667eea;
    border-radius: 8px;
    font-size: 16px;
    cursor: pointer;
    background: white;
    transition: all 0.3s;
}

select:hover {
    border-color: #764ba2;
}

button {
    padding: 12px 30px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-transform: uppercase;
}

#start-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

#start-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

#stop-btn {
    background: #e74c3c;
    color: white;
}

#stop-btn:hover:not(:disabled) {
    background: #c0392b;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(231, 76, 60, 0.4);
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.status {
    display: flex;
    justify-content: space-around;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 10px;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 15px;
}

.status-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.status-item .label {
    font-size: 0.9em;
    color: #666;
    font-weight: 500;
}

.status-item .value {
    font-size: 1.3em;
    font-weight: 700;
    color: #667eea;
}

.video-container {
    position: relative;
    width: 100%;
    max-width: 800px;
    margin: 0 auto 30px;
    background: #000;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

video, canvas {
    display: block;
    width: 100%;
    height: auto;
}

canvas {
    position: absolute;
    top: 0;
    left: 0;
}

.info {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    border-left: 4px solid #667eea;
}

.info h3 {
    color: #333;
    margin-bottom: 15px;
}

.info ul {
    list-style-position: inside;
    color: #555;
    line-height: 1.8;
}

.info li {
    margin-bottom: 8px;
}

@media (max-width: 768px) {
    .container {
        padding: 20px;
    }
    
    h1 {
        font-size: 2em;
    }
    
    .controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .control-group {
        flex-direction: column;
        align-items: stretch;
    }
    
    select, button {
        width: 100%;
    }
}