body { font-family: 'Segoe UI', sans-serif; background: #121212; color: #e0e0e0; margin: 0; padding: 20px; }
.container { max-width: 1000px; margin: auto; }
.card { background: #1e1e1e; border-radius: 12px; padding: 20px; margin-bottom: 20px; box-shadow: 0 8px 32px rgba(0,0,0,0.3); border: 1px solid #333; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

input { width: 100%; padding: 12px; margin: 10px 0; background: #2a2a2a; border: 1px solid #444; color: white; border-radius: 6px; box-sizing: border-box; }
button { padding: 12px 20px; border: none; border-radius: 6px; background: #007bff; color: white; cursor: pointer; font-weight: bold; }
button:hover { background: #0056b3; }
.btn-secondary { background: #444; }
.btn-success { background: #28a745; }

.htop-container { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; background: #252525; padding: 15px; border-radius: 8px; }
.progress-bar { background: #444; height: 10px; border-radius: 5px; overflow: hidden; }
.progress-fill { height: 100%; width: 0%; background: #007bff; transition: 0.3s; }
.temp-val { color: #ff9f43; font-weight: bold; }

.dot { height: 12px; width: 12px; background-color: red; border-radius: 50%; display: inline-block; }
.dot.online { background-color: #28a745; box-shadow: 0 0 10px #28a745; }

.device-btn { display: block; width: 100%; padding: 10px; margin: 5px 0; background: #333; text-align: left; color: #fff; border: 1px solid #444; }
.device-btn:hover { background: #444; }