*{
margin:0;
padding:0;
box-sizing:border-box;
font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto;
}

body{
background:linear-gradient(135deg,#0f172a,#1e3a8a);
color:white;
min-height:100vh;
display:flex;
flex-direction:column;
align-items:center;
justify-content:center;
}

body.light{
background:#f1f1f1;
color:#111;
}

h1{
margin-bottom:20px;
}

.container{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
gap:20px;
width:90%;
max-width:800px;
}

.card{
background:rgba(255,255,255,0.08);
backdrop-filter:blur(15px);
padding:20px;
border-radius:18px;
}

.search{
width:100%;
padding:10px;
border-radius:8px;
border:none;
margin-bottom:10px;
}

.dropdown{
max-height:200px;
overflow:auto;
}

.item{
padding:6px;
cursor:pointer;
}

.item:hover{
background:rgba(255,255,255,0.1);
}

.time{
font-size:28px;
text-align:center;
margin-top:10px;
}

.top-controls{
margin-bottom:20px;
display:flex;
gap:10px;
}

.buttons{
margin-top:20px;
}

button{
padding:8px 14px;
border:none;
border-radius:8px;
cursor:pointer;
}