h1,label{color:#2e4057}.calculator-container{max-width:450px;margin:40px auto auto;text-align:center;padding:25px;background-image:url('../images/calculatorhindibackground.jpg');background-size:cover;background-position:center;background-repeat:no-repeat;border:2px solid #6c757d;border-radius:8px;box-shadow:0 4px 10px rgba(0,0,0,.2)}@media only screen and (max-width:600px){.calculator-container{width:90%}}.calculate-btn{font-size:20px;padding:12px 24px;background-color:#007bff;color:#fff;border:none;border-radius:5px;cursor:pointer}label{display:block;margin-top:15px;font-weight:700}.time-select{padding:8px;margin:5px;font-size:16px}#result{margin-top:20px;font-size:20px;color:#495057;font-weight:500}