body{
margin:0;
font-family:-apple-system,system-ui,sans-serif;
background:#000;
color:#fff;
display:flex;
justify-content:center;
align-items:center;
height:100vh;
text-align:center;
}

.container{
width:90%;
max-width:420px;
}

h1{
font-size:36px;
margin-bottom:10px;
}

.subtitle{
opacity:0.7;
margin-bottom:20px;
}

.small{
opacity:0.5;
margin-top:10px;
font-size:14px;
}

input{
width:100%;
padding:14px;
border-radius:12px;
border:none;
background:#1a1a1a;
color:white;
font-size:16px;
margin-bottom:15px;
}

button{
width:100%;
padding:16px;
border:none;
border-radius:30px;
background:#1d9bf0;
color:white;
font-size:18px;
font-weight:600;
margin-top:10px;
}

#countdown{
font-size:72px;
margin-top:20px;
}

.hidden{
display:none;
}