:root{--green: #0e3617;--yellow: #8b7400;--red: #7c151f}body,html{margin:0;color:#fff;font-family:Verdana,Geneva,Tahoma,sans-serif;font-size:medium;text-align:justify}body{background-color:var(--green);transition:background-color .5s ease}.main-content{display:flex;flex-direction:column;align-items:center;width:100vw;height:100vh;justify-content:center}#gaugeCanvas{display:block;width:100vw;height:auto;margin:0;margin-bottom:10vw;box-sizing:border-box}#icon{font-size:20vw;margin-top:0}#soundToggle{position:fixed;top:1rem;right:2.5rem;z-index:1000;background:#fff;border:none;border-radius:50%;width:25vw;height:25vw;font-size:20vw;cursor:pointer;box-shadow:0 2px 8px #00000026}.navbar{margin-bottom:0}.navbar a.active{color:#212529;font-weight:700}.info-card{max-width:500px;margin:1rem auto 6rem;padding:2rem 1.5rem 1.5rem;border-radius:1.2rem;background:#fff;color:#222;box-shadow:0 2px 16px #00000014;h1,h2{color:var(--green)}.input-group{width:150px}.form-control{font-size:1.2rem;padding:.5rem .75rem}.form-control,.input-group-text{height:45px}.threshold-label{min-width:140px;font-size:1.1rem;padding:.5em 1em;margin-bottom:.5em;color:#fff}.desc{font-size:.95em;color:#666}}@media (max-width: 600px){.settings-card{margin:1.5rem .5rem 6rem;padding:1.2rem .7rem 1rem}}@media (orientation: landscape) and (min-width: 700px){.main-content{flex-direction:row;justify-content:center;align-items:center;gap:4vw}#gaugeCanvas{height:80vh;margin-bottom:0}#icon{font-size:12vw;margin-top:0}#soundToggle{width:10vw;height:10vw;font-size:8vw}}