*{
margin:0;
padding:0;
box-sizing:border-box;
font-family:'Poppins', sans-serif;
}

body{
background: linear-gradient(135deg,#667eea,#764ba2);
height:100vh;
display:flex;
justify-content:center;
align-items:center;
}

.container{
background:white;
padding:30px;
border-radius:12px;
width:350px;
box-shadow:0 10px 25px rgba(0,0,0,0.2);
text-align:center;
}

h1{
margin-bottom:20px;
font-weight:600;
}

.input-area{
display:flex;
gap:10px;
margin-bottom:20px;
}

input{
flex:1;
padding:10px;
border:1px solid #ddd;
border-radius:6px;
}

button{
padding:10px 14px;
border:none;
background:#667eea;
color:white;
border-radius:8px;
cursor:pointer;
transition:0.2s;
}

button:hover{
transform:scale(1.05);
background:#5563d1;
}

.filters{
margin-bottom:15px;
display:flex;
justify-content:space-between;
}

li{
list-style:none;
background:#f3f3f3;
margin:8px 0;
padding:10px;
border-radius:6px;
display:flex;
justify-content:space-between;
align-items:center;
}

.completed{
text-decoration:line-through;
opacity:0.6;
}

.delete{
background:red;
padding:5px 8px;
font-size:12px;
border-radius:5px;
}

.info-btn{
position:fixed;
bottom:20px;
right:20px;

width:40px;
height:40px;
border-radius:50%;

background:#667eea;
color:white;

display:flex;
justify-content:center;
align-items:center;

font-size:18px;
font-weight:bold;
cursor:pointer;

box-shadow:0 4px 10px rgba(0,0,0,0.2);
transition:0.2s;
}

.info-btn:hover{
transform:scale(1.1);
}

.modal{
display:none;
position:fixed;
top:0;
left:0;
width:100%;
height:100%;
background:rgba(0,0,0,0.5);

justify-content:center;
align-items:center;
}

.modal.active{
display:flex;
}

.modal-content{
background:white;
padding:25px;
border-radius:12px;
width:300px;
text-align:center;
box-shadow:0 10px 25px rgba(0,0,0,0.3);
animation:fadeIn 0.3s;
position:relative;
}

.ok-btn{
margin-top:15px;
padding:10px;
width:100%;
background:#667eea;
color:white;
border:none;
border-radius:8px;
cursor:pointer;
font-weight:500;
transition:0.2s;
}

.ok-btn:hover{
background:#5563d1;
transform:scale(1.03);
}

@keyframes fadeIn{
from{opacity:0; transform:scale(0.9);}
to{opacity:1; transform:scale(1);}
}