body{

margin:0;
padding:0;
font-family:Arial;
background:#f3f5f9;

}

.top-header{

display:flex;
justify-content:space-between;
align-items:center;
padding:20px;
background:white;
border-bottom:4px solid #0b2c6b;

}

.logo-area h1{

margin:0;
font-size:42px;
color:#0b2c6b;

}

.logo-area p{

margin:0;
color:#666;

}

.title-area{

width:50%;

}

.title-area h2{

margin:0;
color:#0b2c6b;

}

.status-box{

background:#1f9d45;
color:white;
padding:15px 20px;
border-radius:10px;
font-weight:bold;
text-align:center;

}

.verify-banner{

margin:20px;
background:#0b2c6b;
color:white;
padding:25px;
border-radius:12px;
display:flex;
justify-content:space-between;
align-items:center;

}

.qr-box{

background:white;
color:#0b2c6b;
padding:20px;
border-radius:10px;
font-weight:bold;

}

.search-box{

margin:20px;
background:white;
padding:20px;
border-radius:10px;

}

.search-box input{

width:70%;
padding:14px;
border:1px solid #ccc;
border-radius:5px;

}

.search-box button{

padding:14px 20px;
background:#0b2c6b;
color:white;
border:none;
border-radius:5px;
cursor:pointer;

}

.main-container{

display:flex;
gap:20px;
margin:20px;

}

.student-box,.certificate-box{

background:white;
padding:20px;
border-radius:12px;
box-shadow:0 0 10px rgba(0,0,0,0.08);
flex:1;

}

table{

width:100%;
border-collapse:collapse;

}

table td{

padding:12px;
border-bottom:1px solid #ddd;

}

.valid{

color:green;
font-weight:bold;

}

.certificate-preview{

border:6px solid gold;
padding:25px;
margin-top:20px;
background:#fffdf8;
text-align:center;

}

.cert-header{

font-size:32px;
font-weight:bold;
color:#0b2c6b;

}

.cert-body h1{

color:#8b0000;

}

.cert-body h2{

color:#0b2c6b;

}

.download-btn{

width:100%;
margin-top:20px;
padding:14px;
background:#0b2c6b;
color:white;
border:none;
border-radius:8px;
cursor:pointer;

}

.invalid-box{

margin:20px;
background:white;
padding:30px;
text-align:center;
font-size:32px;
color:red;
border-radius:12px;

}

.footer{

margin-top:30px;
background:#0b2c6b;
color:white;
padding:20px;
text-align:center;

}

@media(max-width:900px){

.main-container{

flex-direction:column;

}

.search-box input{

width:100%;
margin-bottom:10px;

}

.search-box button{

width:100%;

}

.top-header{

flex-direction:column;
text-align:center;

}

.title-area{

width:100%;
margin-top:10px;

}

}