.admin-shell{max-width:1100px;margin:32px auto;padding:0 20px;color:var(--text)}
.admin-shell [hidden]{display:none!important}.admin-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}.admin-shell h1{font-size:32px}.admin-shell h2{font-size:23px;margin-bottom:12px}.admin-shell p{line-height:1.8;color:var(--text-dim);margin:12px 0}.admin-shell .card-section{margin:20px 0;padding:24px;border:1px solid var(--border);border-radius:16px;background:var(--surface)}.admin-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin:20px 0}.admin-shell label{display:block;line-height:1.8}.admin-shell .form-input{display:block;width:100%;margin:6px 0 12px}.admin-check{display:flex!important;align-items:center;gap:8px}.admin-shell input[type=checkbox]{width:18px;height:18px}.admin-shell button{min-height:44px}.admin-student{border-top:1px solid var(--border);padding:20px 0}.admin-student h3{overflow-wrap:anywhere}.admin-shell li{padding:8px;overflow-wrap:anywhere}#adminSecret{font-family:monospace;overflow-wrap:anywhere;user-select:all;padding:16px;border:1px solid var(--border)}#adminMessage{position:sticky;top:0;background:var(--surface);z-index:2;padding:12px;border-radius:10px}#studentSearch input{flex:1;min-width:180px}#adminGate{max-width:600px;margin-inline:auto}@media(max-width:600px){.admin-grid{grid-template-columns:1fr}.admin-shell .card-section{padding:18px}.admin-shell{padding:0 12px}}
.admin-shell .btn-primary{background:#303030!important;color:#f5f2ec!important;border:1px solid #666!important;box-shadow:none!important}.admin-shell .btn-primary:hover{background:#444!important}
#adminGateMessage{padding:10px;border-radius:8px;background:var(--surface2);overflow-wrap:anywhere}#adminGateMessage:empty{display:none}#adminGateMessage[data-error="true"]{color:#ef9d9d;border:1px solid #9d5555}