*{margin:0;padding:0;box-sizing:border-box}
body{font-family:Arial;background:#f1f5f9}
.layout{display:flex}
.sidebar{
width:250px;
min-height:100vh;
background:#0f172a;
padding:20px;
display:flex;
flex-direction:column
}
.sidebar h2{color:#fff;margin-bottom:20px}
.sidebar a{
color:#cbd5e1;
text-decoration:none;
padding:12px;
border-radius:10px;
margin-bottom:10px
}
.sidebar a:hover{background:#1e293b}
.content{flex:1;padding:30px}
.card{
background:#fff;
padding:25px;
border-radius:20px;
margin-bottom:20px;
box-shadow:0 4px 15px rgba(0,0,0,.05)
}
input,select,textarea{
width:100%;
padding:12px;
margin-top:8px;
margin-bottom:16px;
border:1px solid #ddd;
border-radius:10px
}
button{
background:#2563eb;
color:#fff;
border:none;
padding:12px 20px;
border-radius:10px;
cursor:pointer
}
table{
width:100%;
border-collapse:collapse
}
table th,table td{
padding:14px;
border-bottom:1px solid #eee
}
.badge{
padding:5px 10px;
border-radius:30px;
font-size:12px
}
.done{background:#dcfce7;color:#166534}
.doing{background:#dbeafe;color:#1d4ed8}
.login-box{
width:400px;
margin:100px auto;
background:#fff;
padding:30px;
border-radius:20px;
box-shadow:0 4px 15px rgba(0,0,0,.05)
}
@media(max-width:768px){
.layout{flex-direction:column}
.sidebar{width:100%;min-height:auto}
}