body { font-family: Arial, Helvetica, sans-serif; background: #f4f6f8; color: #111; margin: 0; }
.container { max-width: 1100px; margin: 18px auto; padding: 12px; }
header { margin-bottom: 10px; }
#topline { font-size: 14px; color: #333; }
.card { background: white; border-radius: 8px; padding: 12px; box-shadow: 0 1px 4px rgba(0,0,0,0.06); }
main { display: grid; grid-template-columns: 1fr 320px; gap: 12px; }
#chart { height: 420px; }
#alerts { max-height: 420px; overflow: auto; }
#alertList { list-style: none; padding: 0; margin: 0; }
#alertList li { padding: 8px; border-bottom: 1px solid #eee; }
button { padding: 8px 12px; border-radius: 6px; border: 1px solid #ccc; background: #fff; cursor: pointer; }
button:hover { background: #f1f1f1; }
footer { margin-top: 12px; }