.ia-att-wrap{max-width:980px;margin:0 auto}
.ia-att-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
@media(min-width:768px){.ia-att-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}

.ia-teacher-btn{padding:12px;border:1px solid #ddd;border-radius:12px;background:#fff;text-align:left;cursor:pointer}
.ia-teacher-btn:disabled{opacity:.55;cursor:not-allowed}
.ia-name{display:block;font-weight:700}
.ia-desig{display:block;font-size:12px;opacity:.75;margin-top:2px}
.ia-done{display:block;font-size:12px;margin-top:6px}

.ia-msg{margin-top:12px;font-weight:600}

.ia-modal{position:fixed;inset:0;display:none;align-items:center;justify-content:center;background:rgba(0,0,0,.45);z-index:9999;padding:16px}
.ia-modal.is-open{display:flex}
.ia-modal-card{width:100%;max-width:420px;background:#fff;border-radius:16px;overflow:hidden}
.ia-modal-head{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-bottom:1px solid #eee}
.ia-modal-title{font-weight:700}
.ia-close{border:0;background:transparent;font-size:22px;cursor:pointer;line-height:1}
.ia-modal-body{padding:14px}
.ia-teacher-selected{font-weight:700;margin-bottom:10px}
.ia-pass{width:100%;padding:12px;border:1px solid #ddd;border-radius:12px;font-size:16px}
.ia-modal-note{font-size:12px;opacity:.75;margin-top:8px}
.ia-modal-error{margin-top:10px;color:#b00020;font-weight:600}
.ia-modal-actions{display:flex;gap:10px;justify-content:flex-end;padding:12px 14px;border-top:1px solid #eee}
.ia-submit,.ia-cancel{padding:10px 14px;border-radius:12px;border:1px solid #ddd;background:#fff;cursor:pointer}
.ia-submit{border-color:#111}