body{
margin:0;
font-family:Arial;
background:#ffffff;
}

/* topbar */

.topbar{

height:60px;

background:white;

display:flex;

align-items:center;

padding:0 20px;

box-shadow:0 2px 8px rgba(0,0,0,0.1);

}

.menu-btn{

font-size:24px;

border:none;

background:none;

cursor:pointer;

margin-right:15px;

}

/* sidebar */

.sidebar{

position:fixed;

left:-260px;

top:0;

width:260px;

height:100%;

background:linear-gradient(180deg,#6a11cb,#ff4da6);

transition:0.3s;

padding-top:20px;

}

.sidebar.active{

left:0;

}

.sidebar a{

display:block;

padding:14px 20px;

color:white;

text-decoration:none;

}

.sidebar a:hover{

background:rgba(255,255,255,0.2);

}

/* form */

.form-card{

max-width:420px;

margin:auto;

margin-top:40px;

background:white;

padding:25px;

border-radius:12px;

box-shadow:0 6px 20px rgba(0,0,0,0.1);

}

.form-control{

width:100%;

padding:10px;

margin-bottom:12px;

border:1px solid #ddd;

border-radius:6px;

}

/* button */

.btn-theme{

background:linear-gradient(45deg,#6a11cb,#ff4da6);

color:white;

border:none;

padding:12px;

width:100%;

border-radius:8px;

cursor:pointer;

}

/* alert */

.alert{

padding:12px;

border-radius:6px;

margin-bottom:10px;

background:#e8f7ee;

color:#1a7f37;

}