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

body{
background:linear-gradient(135deg,#0f172a,#1e293b);
color:#1f2937;
}

.menu{
display:flex;
flex-direction:column;
justify-content:center;
align-items:center;
height:100vh;
text-align:center;
}

.menu h1{color:#fff;font-size:40px;}
.subtitle{color:#cbd5f5;margin:15px 0 40px;}

.menu-buttons{display:flex;flex-direction:column;gap:20px;}

.menu button{
width:280px;
padding:16px;
border-radius:14px;
border:none;
background:rgba(255,255,255,0.08);
color:#fff;
cursor:pointer;
transition:0.3s;
}

.menu button:hover{
background:#6366f1;
transform:translateY(-4px);
}

.page{display:none;padding:40px 20px;max-width:1000px;margin:auto;}

.card{
background:#fff;
padding:25px;
border-radius:18px;
margin-bottom:25px;
box-shadow:0 10px 30px rgba(0,0,0,0.2);
}

input,select,textarea{
width:100%;
padding:12px;
margin:8px 0;
border-radius:10px;
border:1px solid #ccc;
}

button{
padding:10px;
border:none;
border-radius:10px;
background:#6366f1;
color:#fff;
cursor:pointer;
}

.deleteBtn{
background:white;
color:#6366f1;
border:1px solid #6366f1;
}

.completed{
text-decoration:line-through;
color:gray;
}

table{
width:100%;
border-collapse:collapse;
}

th,td{
padding:10px;
border-bottom:1px solid #ddd;
}