*{box-sizing:border-box}
body{margin:0;font-family:Arial,Helvetica,sans-serif;background:#f5f6f8;color:#222}
.demo{background:#222;color:#fff;text-align:center;padding:7px;font-size:12px}
.topbar{background:#fff;border-bottom:1px solid #ddd;min-height:70px;padding:0 6%;display:flex;align-items:center;justify-content:space-between}
.logo{font-size:21px;font-weight:bold}
nav{display:flex;gap:18px}
nav a{color:#333;text-decoration:none}
.container{width:92%;max-width:1050px;margin:35px auto}
.image-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.image-box{height:230px;background:#ddd;display:flex;align-items:center;justify-content:center;border-radius:8px;font-weight:bold;color:#666}
.banner{color:#333;border-radius:8px;padding:45px 30px;margin:20px 0}
.banner h1{margin:0 0 8px}
.card{background:#fff;border:1px solid #ddd;border-radius:8px;padding:28px;max-width:650px;margin:35px auto}
.detail{display:flex;justify-content:space-between;padding:13px;background:#f8f8f8;margin-bottom:8px;border-radius:5px}
.detail span{color:#666}
.btn{display:block;width:100%;padding:13px;border:0;border-radius:5px;background:#0556cd;color:#fff;text-align:center;text-decoration:none;cursor:pointer;font-size:15px}
.btn.secondary{background:#eee;color:#222}
label{display:block;font-weight:bold;margin:15px 0}
input,textarea,select{width:100%;padding:11px;margin-top:7px;border:1px solid #ccc;border-radius:5px;font-size:15px}
textarea{min-height:90px}
.success{background:#e9f8ee;color:#16803c;padding:15px;border-radius:5px;margin-bottom:20px}
.error{background:#fdecec;color:#a00;padding:12px;border-radius:5px}
.tick{width:65px;height:65px;background:#e4f8ea;color:#159447;border-radius:50%;font-size:40px;font-weight:bold;display:flex;align-items:center;justify-content:center;margin:0 auto 15px}
.center{text-align:center}
.bank-box{background:#f7f7f7;padding:18px;border-radius:6px;margin:20px 0}
.note{padding:15px;border-radius:5px;margin:20px 0;font-weight:bold}
.note.green{background:#e8f8ed;color:#137333}
.note.red{background:#fde9e9;color:#a61b1b}
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;background:#fff}
th,td{padding:12px;border:1px solid #ddd;text-align:left}
th{background:#f2f2f2}
.admin-grid{display:grid;grid-template-columns:1fr 1fr;gap:25px}
.small{font-size:13px;color:#666}
@media(max-width:700px){
 .image-grid,.admin-grid{grid-template-columns:1fr}
 .topbar{padding:12px 4%;flex-direction:column;gap:10px}
 .container{width:94%}
 .banner{padding:30px 20px}
 .card{padding:20px}
 .detail{gap:15px}
}