* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background: #0b0e14; color: #fff; padding: 20px; }
.app-container { max-width: 1000px; margin: auto; text-align: center; }
header { margin-bottom: 30px; border-bottom: 2px solid #1abc9c; padding-bottom: 10px; }

.monitor-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(400px, 1fr)); gap: 20px; margin-bottom: 20px; }
.card { background: #1c232d; padding: 15px; border-radius: 12px; box-shadow: 0 4px 15px rgba(0,0,0,0.5); }
canvas { width: 100%; background: #000; border-radius: 8px; }

.status-bar { display: flex; justify-content: space-around; background: #1abc9c; color: #000; padding: 10px; border-radius: 8px; font-weight: bold; margin-bottom: 20px; }

.controls { background: #1c232d; padding: 20px; border-radius: 12px; display: flex; flex-wrap: wrap; justify-content: space-around; }
.slider-box { display: flex; flex-direction: column; width: 30%; min-width: 150px; }
input[type=range] { margin-top: 10px; cursor: pointer; }