:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:#15243c;background:#f4f7fb;line-height:1.5;color-scheme:light}*{box-sizing:border-box}body{margin:0;min-width:280px}.app-shell>header{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:16px;color:#fff;background:#13376e;padding:12px max(24px,calc((100vw - 1152px)/2))}.app-shell>header strong{font-size:1.375rem;display:block}.app-shell>header span{font-size:.8rem;opacity:.86}.app-shell>main,.context{max-width:1200px;margin:auto;padding-left:24px;padding-right:24px}.app-shell>main{padding-bottom:48px}.context{padding-top:14px;padding-bottom:14px;color:#4b617d;font-size:.9rem;border-bottom:1px solid #d8e1ee}.skip-link{position:fixed;z-index:20;left:12px;top:8px;background:#fff;color:#123b75;padding:10px 14px;border-radius:8px;transform:translateY(-160%)}.skip-link:focus{transform:translateY(0)}h1{margin:28px 0 4px;line-height:1.2}h2{font-size:1.1rem;margin-top:0}h3{font-size:1rem}.muted,small{color:#5c6f88}.cards,.grid{display:grid;gap:16px;margin-top:22px}.cards{grid-template-columns:repeat(3,minmax(0,1fr))}.grid{grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr)}.metric,.panel{background:#fff;border:1px solid #dce5f1;border-radius:14px;padding:18px;box-shadow:0 2px 8px #11396b0b}.metric span{display:block;color:#536780;font-size:.9rem}.metric strong{display:block;font-size:1.75rem;margin:7px 0;color:#123b75}.panel>p{border-bottom:1px solid #edf1f6;padding-bottom:12px}select,input,textarea,button{font:inherit;border-radius:8px;padding:10px 12px;border:1px solid #aebed3}input,select,textarea{width:100%;color:#15243c;background:#fff}textarea{min-height:92px;resize:vertical}button{width:max-content;background:#1763c7;color:#fff;border:none;cursor:pointer;font-weight:650}button:hover{background:#124f9f}button:disabled{opacity:.58;cursor:not-allowed}button.secondary{color:#123b75;background:#e8eef7}button.secondary:hover{background:#d9e4f2}li{margin:12px 0}.chat{height:auto;overflow:auto;background:#f6f9fd;border-radius:9px;padding:12px}.auth{max-width:460px;margin:48px auto}.auth form,.panel form{display:flex;flex-direction:column;align-items:stretch;margin-top:12px;gap:12px}.auth label,.panel label{display:grid;gap:5px;color:#344b68;font-weight:600}.auth button,.panel form button{align-self:flex-start}.mfa-setup{background:#f6f9fd;border:1px solid #d9e4f2;border-radius:10px;padding:12px;margin:14px 0}.mfa-setup code{display:block;overflow-wrap:anywhere;font-size:1rem;letter-spacing:.05em}.table-wrap{max-width:100%;overflow-x:auto}table{width:100%;border-collapse:collapse}caption{text-align:left;font-weight:600;color:#536780;padding:0 0 8px}th,td{text-align:left;padding:10px;border-bottom:1px solid #d9e3ef}th{color:#294768}.error,.success{border-radius:8px;padding:10px}.error{color:#841b1b;background:#fff1f1;border:1px solid #f0caca}.success{color:#195b37;background:#edf9f1;border:1px solid #bfe2ca}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible,a:focus-visible{outline:3px solid #e3a900;outline-offset:3px}.sessions,.privacy{margin-top:24px}.sessions summary,.privacy summary{font-weight:700;cursor:pointer;color:#123b75}.sessions li{display:flex;align-items:center;justify-content:space-between;gap:12px}.sessions small,.privacy small{display:block;margin-top:3px}.danger{background:#9b1c1c}.danger:hover{background:#751515}fieldset{border:1px solid #d6e0ec;border-radius:10px;margin:16px 0;padding:14px}legend{font-weight:700;padding:0 6px}.consent{display:grid!important;grid-template-columns:auto 1fr;align-items:start;gap:10px!important;margin:12px 0}.consent input{width:20px;height:20px;margin-top:2px}.privacy>button{margin:4px 0 8px}@media(max-width:720px){.cards,.grid{grid-template-columns:1fr}.app-shell>header{align-items:flex-start;flex-direction:column;padding-left:14px;padding-right:14px}.app-shell>main,.context{padding-left:14px;padding-right:14px}.sessions li{align-items:flex-start;flex-direction:column}.metric strong{font-size:1.5rem}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}.tutor-actions{display:flex;flex-wrap:wrap;gap:.5rem;margin:.75rem 0}.tutor-actions button{font-size:.85rem;padding:.35rem .7rem}.chat .turn{padding:.6rem .75rem;border-radius:.5rem;margin-bottom:.5rem}.chat .turn.student{background:#eef2f7}.chat .turn.tutor{background:#f6fbf7;border-left:3px solid #2f7d4f}.chat .turn p{margin:0 0 .35rem}.recovery-codes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;list-style:none;padding:12px;background:#f6f9fd;border:1px solid #d9e4f2;border-radius:10px}.recovery-codes li{margin:0;padding:8px;text-align:center;background:#fff;border:1px solid #d9e4f2;border-radius:7px}.recovery-codes code{font-size:1rem;letter-spacing:.06em}.auth .acknowledge{display:grid;grid-template-columns:auto 1fr;align-items:start;gap:10px;margin:18px 0;font-weight:500}.auth .acknowledge input{width:20px;height:20px;margin-top:2px}@media(max-width:480px){.recovery-codes{grid-template-columns:1fr}}.operations-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:22px}.operation-detail{margin-top:16px}.action-list{list-style:none;margin:0;padding:0}.action-list>li{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:12px 0;border-bottom:1px solid #e4ebf4}.action-list>li:last-child{border-bottom:0}.action-list small{display:block;margin-top:3px}.button-row{display:flex;align-items:center;flex-wrap:wrap;gap:8px}.review-questions{display:grid;gap:12px}.review-questions>section{padding:12px;border:1px solid #dce5f1;border-radius:10px;background:#f8fafd}.review-questions code{white-space:pre-wrap;overflow-wrap:anywhere}.operation-detail nav,.panel nav{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}@media(max-width:800px){.operations-grid{grid-template-columns:1fr}.action-list>li{align-items:flex-start;flex-direction:column}}.tabs{display:flex;flex-wrap:wrap;gap:.25rem;border-bottom:1px solid var(--border,#d5d9e0);margin:1rem 0 1.25rem}.tab{background:none;border:none;border-bottom:3px solid transparent;border-radius:0;padding:.6rem .9rem;font:inherit;color:inherit;cursor:pointer}.tab:hover{background:#0000000a}.tab.active{border-bottom-color:currentColor;font-weight:600}.tab:focus-visible{outline:2px solid currentColor;outline-offset:2px}.filters{display:flex;flex-wrap:wrap;gap:1rem;align-items:flex-end;margin-bottom:1rem}.filters label{flex:1 1 12rem}.row-actions{display:flex;flex-wrap:wrap;gap:.4rem}.row-actions button{padding:.35rem .6rem;font-size:.85em}.paginator{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-top:.75rem;flex-wrap:wrap}.paginator span{font-size:.9em}.empty-state{padding:1.25rem 0;font-style:italic}.status{display:inline-block;padding:.1rem .5rem;border-radius:999px;font-size:.8em;border:1px solid currentColor}.status-active{color:#1b6b3a}.status-invited,.status-suspended{color:#8a5a00}.status-deactivated,.status-withdrawn,.status-closed{color:#7a2222}.badge{font-size:.75em;padding:.05rem .4rem;border:1px solid currentColor;border-radius:999px}.warning{color:#7a2222;font-weight:700}button.destructive{background:#7a2222;color:#fff;border-color:#7a2222}button.destructive:disabled{opacity:.6}.inline-form{margin-top:.5rem}.inline-form textarea{min-height:4rem}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f12198c;display:flex;align-items:center;justify-content:center;padding:1rem;z-index:50}.modal{max-width:32rem;width:100%}.modal h2{margin-top:0}fieldset{border:1px solid var(--border,#d5d9e0);border-radius:.4rem;padding:.75rem 1rem 1rem;margin:.75rem 0}legend{padding:0 .35rem;font-weight:600}@media(max-width:640px){.tabs{overflow-x:auto;flex-wrap:nowrap}.row-actions{flex-direction:column;align-items:stretch}}
