body{

margin:0;
font-family:Arial;
background:#f5f5f5;

}

.sidebar{

width:250px;
height:100vh;
background:#0d6efd;
position:fixed;
left:0;
top:0;
overflow:auto;

}

.sidebar h2{

color:white;
text-align:center;
padding:20px 0;
border-bottom:1px solid rgba(255,255,255,0.2);

}

.sidebar a{

display:block;
color:white;
padding:15px 20px;
text-decoration:none;
font-size:16px;

}

.sidebar a:hover{

background:#0b5ed7;

}

.main{

margin-left:250px;
padding:20px;

}

.topbar{

background:white;
padding:15px 20px;
border-radius:10px;
margin-bottom:20px;
box-shadow:0 0 10px rgba(0,0,0,0.1);

}

.card-container{

display:grid;
grid-template-columns:repeat(4,1fr);
gap:20px;

}

.card{

background:white;
padding:30px;
border-radius:10px;
text-align:center;
box-shadow:0 0 10px rgba(0,0,0,0.1);

}

.card h2{

margin:0;
font-size:40px;

}

.card p{

font-size:18px;

}

.box{

background:white;
padding:20px;
margin-top:20px;
border-radius:10px;
box-shadow:0 0 10px rgba(0,0,0,0.1);

}

.box a{

text-decoration:none;
font-size:20px;
font-weight:bold;

}

.todaybirthday{

color:#0d6efd;

}

.todayanniversary{

color:#dc3545;

}

.monthbirthday{

color:#198754;

}

.monthanniversary{

color:#fd7e14;

}

table{

width:100%;
border-collapse:collapse;
background:white;

}

th{

background:#0d6efd;
color:white;
padding:12px;

}

td{

padding:10px;
border:1px solid #ddd;

}

input,select,textarea{

width:100%;
padding:10px;
margin-top:5px;
margin-bottom:15px;
border:1px solid #ccc;
border-radius:5px;

}

button{

background:#0d6efd;
color:white;
padding:12px;
border:none;
width:100%;
font-size:18px;
cursor:pointer;
border-radius:5px;

}

.container{

background:white;
padding:20px;
border-radius:10px;
box-shadow:0 0 10px rgba(0,0,0,0.1);

}

@media(max-width:900px){

.sidebar{

width:100%;
height:auto;
position:relative;

}

.main{

margin-left:0;

}

.card-container{

grid-template-columns:repeat(1,1fr);

}

}