body{margin:0;font-family:Arial,sans-serif;background:#f5f5f5;color:#333}
.container{max-width:1000px;margin:auto;padding:16px}
.navbar{background:#007bff;padding:10px 16px;display:flex;align-items:center;gap:12px;position:sticky;top:0;z-index:5}
.navbar .brand{color:#fff;font-size:20px;font-weight:bold;text-decoration:none;white-space:nowrap}
.nav-toggle{display:none;background:rgba(255,255,255,.2);border:none;color:#fff;font-size:22px;line-height:1;padding:8px 10px;border-radius:6px;cursor:pointer}
.nav{display:flex;gap:12px;align-items:center;flex:1;flex-wrap:wrap}
.nav a{color:#fff;text-decoration:none;padding:6px 10px;border-radius:6px}
.nav a:hover{background:rgba(255,255,255,.2)}
.nav .nav-right{margin-left:auto}
.footer{background:#007bff;color:#fff;text-align:center;padding:14px 0;margin-top:28px}

.card{background:#fff;border-radius:10px;padding:14px;box-shadow:0 1px 4px rgba(0,0,0,.06)}
.notice{background:#fff3cd;border:1px solid #ffeeba;padding:12px;border-radius:10px;margin:14px 0}

table{width:100%;border-collapse:collapse;margin-top:14px;background:#fff}
table th, table td{border:1px solid #ddd;padding:8px;vertical-align:top}
table th{background:#007bff;color:#fff}
.table-wrap{width:100%;overflow-x:auto;border-radius:10px}

form label{display:block;margin-top:10px}
form input, form select{width:100%;padding:10px;box-sizing:border-box;margin-top:6px;border:1px solid #d0d0d0;border-radius:8px}
form button, form input[type=submit]{margin-top:14px;padding:10px 14px;border:none;background:#007bff;color:#fff;border-radius:8px;cursor:pointer}
form button:hover, form input[type=submit]:hover{background:#0056b3}

@media (max-width: 720px){
  .nav-toggle{display:block}
  .nav{display:none;flex-direction:column;align-items:stretch;background:#006be0;padding:10px;border-radius:10px}
  body.nav-open .nav{display:flex}
  .nav .nav-right{margin-left:0}
  .container{padding:12px}
  table{display:block}
}