body{
font-family:Arial, sans-serif;
margin:0;
background:#f5f6fa;
}

/* sidebar */
.sidebar{
width:220px;
background:#0b2a4a;
position:fixed;
top:0;
bottom:0;
left:0;
padding-top:20px;
transition:0.3s;
z-index:1000;
}

.sidebar a{
display:block;
color:#fff;
padding:10px 15px;
text-decoration:none;
}

.sidebar a:hover{
background:#133d6b;
}

/* main content */
.main{
margin-left:220px;
padding:15px;
}

/* topbar */
.topbar{
background:#fff;
padding:10px;
box-shadow:0 0 5px rgba(0,0,0,0.1);
margin-bottom:10px;
}

/* toggle button */
.toggle{
display:none;
font-size:20px;
cursor:pointer;
margin-right:10px;
}

/* cards */
.card{
background:#fff;
padding:15px;
margin:10px 0;
border-radius:6px;
box-shadow:0 0 5px rgba(0,0,0,0.1);
}

/* buttons */
.btn{
background:#0b2a4a;
color:#fff;
padding:8px 12px;
text-decoration:none;
border:none;
border-radius:4px;
display:inline-block;
}

/* forms */
input,select,textarea{
width:100%;
padding:8px;
margin:5px 0;
}

/* table */
table{
width:100%;
border-collapse:collapse;
background:#fff;
}

table th{
background:#0b2a4a;
color:#fff;
padding:8px;
}

table td{
padding:8px;
border:1px solid #ddd;
}

/* form box */
.form-box{
max-width:500px;
background:#fff;
padding:20px;
border-radius:6px;
box-shadow:0 0 5px rgba(0,0,0,0.1);
}

/* back button */
.back-btn{
display:inline-block;
margin-bottom:15px;
background:#6c757d;
color:#fff;
padding:8px 12px;
text-decoration:none;
border-radius:4px;
}

/* menu cards */
.card-menu{
display:flex;
flex-wrap:wrap;
gap:10px;
}

.menu-btn{
padding:12px 18px;
background:#0b2a4a;
color:#fff;
text-decoration:none;
border-radius:4px;
}

/* mobile responsive */
@media(max-width:768px){

.sidebar{
left:-220px;
}

.sidebar.active{
left:0;
}

.main{
margin-left:0;
}

.toggle{
display:inline-block;
}

.card-menu{
flex-direction:column;
}

table{
font-size:12px;
overflow-x:auto;
display:block;
}

}
.login-page{
height:100vh;
display:flex;
justify-content:center;
align-items:center;
background:#1e3a5f;
}

.login-box{
background:#fff;
padding:30px;
width:340px;
border-radius:8px;
box-shadow:0 0 15px rgba(0,0,0,0.2);
}

.login-title{
text-align:center;
font-size:18px;
font-weight:bold;
margin-bottom:20px;
color:#1e3a5f;
}

.login-box input{
width:100%;
padding:10px;
margin:8px 0;
border:1px solid #ccc;
border-radius:4px;
}

.login-btn{
width:100%;
background:#1e3a5f;
color:#fff;
padding:10px;
border:none;
border-radius:4px;
font-size:16px;
cursor:pointer;
}

.login-btn:hover{
background:#294d7a;
}

.login-error{
color:red;
text-align:center;
margin-top:10px;
}

.login-footer{
text-align:center;
font-size:12px;
margin-top:15px;
color:#666;
}
.welcome-box{
height:100vh;
display:flex;
flex-direction:column;
justify-content:center;
align-items:center;
text-align:center;
background:#f5f6fa;
}

.welcome-box h1{
font-size:32px;
margin-bottom:5px;
color:#1e3a5f;
}

.welcome-box h2{
font-size:18px;
color:#555;
margin-bottom:20px;
}

.login-btn{
background:#1e3a5f;
color:#fff;
padding:12px 28px;
text-decoration:none;
border-radius:5px;
font-size:16px;
display:inline-block;
}

.login-btn:hover{
background:#294d7a;
}
.back-btn{
display:inline-block;
margin-bottom:15px;
background:#6c757d;
color:#fff;
padding:8px 12px;
text-decoration:none;
border-radius:4px;
}

.back-btn:hover{
background:#5a6268;
}