:root{color-scheme:light;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:#f4f1ea;color:#17201c;font-synthesis:none;--primary: #15654c;--primary-dark: #0e4c39;--primary-soft: #e7f1ed;--ink: #17201c;--muted: #66736d;--line: #ddd8cd;--line-soft: #ece7dd;--surface: #ffffff;--surface-soft: #f8f6f1;--danger: #9b2d1f;--danger-soft: #fff4f1;--shadow: 0 1px 2px rgba(23, 32, 28, .04), 0 8px 24px rgba(23, 32, 28, .035)}*{box-sizing:border-box}html{min-width:320px}body{margin:0;min-height:100vh}button,input,select,textarea{font:inherit}button,input,select,textarea{outline-color:var(--primary)}button{align-items:center;background:var(--surface);border:1px solid #d2cdc2;border-radius:9px;color:var(--ink);cursor:pointer;display:inline-flex;font-size:13px;font-weight:650;gap:8px;justify-content:center;min-height:38px;padding:0 13px;transition:border-color .14s ease,background .14s ease,color .14s ease,transform .14s ease}button:hover:not(:disabled){border-color:#96aa9f;background:#fbfdfc}button:active:not(:disabled){transform:translateY(1px)}button:disabled{cursor:not-allowed;opacity:.5}button.active,button.primary{background:var(--primary);border-color:var(--primary);color:#fff}button.active:hover:not(:disabled),button.primary:hover:not(:disabled){background:var(--primary-dark);border-color:var(--primary-dark)}button.danger{background:var(--danger-soft);border-color:#e5b2a9;color:var(--danger)}.icon-button{min-width:38px;padding:0}.login{background:radial-gradient(circle at 50% 20%,#fff 0,#f4f1ea 48%);display:grid;min-height:100vh;place-items:center;padding:24px}.login section{background:#ffffffe0;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);max-width:460px;padding:44px}.login h1{font-size:clamp(32px,6vw,48px);letter-spacing:-.04em;line-height:1.05;margin:10px 0 28px}.eyebrow{color:var(--muted);font-size:11px;font-weight:750;letter-spacing:.08em;margin:0;text-transform:uppercase}.mono{font-family:SFMono-Regular,Consolas,monospace;font-size:12px}.spin{animation:spin .85s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.shell{display:grid;grid-template-columns:244px minmax(0,1fr);min-height:100vh}aside{background:#102e25;color:#fff;display:flex;flex-direction:column;min-height:100vh;padding:22px 16px;position:sticky;top:0;height:100vh}.brand{align-items:center;display:flex;gap:12px;margin:0 8px 32px}.brand-mark{align-items:center;background:#d8ec7b;border-radius:10px;color:#173c30;display:flex;height:38px;justify-content:center;width:38px}.brand strong,.brand span{display:block}.brand strong{font-size:15px;letter-spacing:-.01em}.brand span{color:#a7beb5;font-size:12px;margin-top:1px}nav{display:grid;gap:6px}nav button{background:transparent;border-color:transparent;color:#c6d5cf;justify-content:flex-start;min-height:42px;padding:0 12px;width:100%}nav button:hover:not(:disabled){background:#ffffff12;border-color:transparent;color:#fff}nav button.active{background:#fff;border-color:#fff;color:#123a2e}.sidebar-note{border-top:1px solid rgba(255,255,255,.12);color:#a7beb5;margin-top:auto;padding:20px 8px 16px}.sidebar-note span{color:#e3ece8;font-size:11px;font-weight:750;letter-spacing:.06em;text-transform:uppercase}.sidebar-note p{font-size:11px;line-height:1.5;margin:6px 0 0}.account{align-items:center;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;padding:16px 8px 0}.account>span{color:#a7beb5;font-size:12px}main{min-width:0}.content{display:grid;gap:20px;margin:0 auto;max-width:1580px;padding:32px 36px 52px}.page-heading{align-items:flex-end;display:flex;gap:24px;justify-content:space-between;min-height:72px}.page-heading h1{font-size:clamp(28px,3vw,38px);letter-spacing:-.035em;line-height:1.1;margin:6px 0}.page-heading>div>p:last-child{color:var(--muted);font-size:14px;margin:0}.page-actions{display:flex;flex-wrap:wrap;gap:8px}.metrics{display:grid;gap:12px;grid-template-columns:repeat(5,minmax(120px,1fr))}.metrics article{align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:13px;box-shadow:var(--shadow);display:flex;gap:12px;min-height:96px;padding:18px}.metric-icon{align-items:center;background:var(--primary-soft);border-radius:10px;color:var(--primary);display:flex;flex:0 0 auto;height:38px;justify-content:center;width:38px}.metrics span,.usage-strip span,.account-summary span{color:var(--muted);display:block;font-size:11px;font-weight:700;letter-spacing:.025em;text-transform:uppercase}.metrics strong{display:block;font-size:25px;letter-spacing:-.03em;margin-top:2px}.usage-strip{align-items:center;background:#173d31;border:1px solid #173d31;border-radius:13px;color:#fff;display:grid;gap:16px;grid-template-columns:minmax(190px,1.5fr) repeat(3,1fr);padding:16px 20px}.usage-strip>div{border-left:1px solid rgba(255,255,255,.14);padding-left:20px}.usage-strip>div:first-child{border-left:0;padding-left:0}.usage-strip span{color:#abc2b8}.usage-strip strong{display:block;font-size:15px;margin-top:4px}.usage-lead{align-items:center;display:flex;gap:12px}.usage-lead .metric-icon{background:#d8ec7b29;color:#d8ec7b}.panel{background:var(--surface);border:1px solid var(--line);border-radius:13px;box-shadow:var(--shadow);min-width:0;padding:18px}.panel h2,.panel h3{letter-spacing:-.02em;margin:0}.panel h2{font-size:19px}.panel h3{font-size:16px}.panel-header{align-items:center;display:flex;gap:16px;justify-content:space-between;margin-bottom:16px}.panel-title{align-items:center;display:flex;gap:12px}.panel-title p{color:var(--muted);font-size:12px;margin:4px 0 0}.form-title{grid-column:1 / -1}.search{align-items:center;background:var(--surface-soft);border:1px solid #d8d3c8;border-radius:9px;color:var(--muted);display:flex;gap:8px;min-width:min(440px,48vw);padding-left:11px}.search input{background:transparent;border:0}.search input:focus{outline:none}.search button{border-bottom:0;border-right:0;border-top:0;border-radius:0 8px 8px 0}input,select,textarea{background:#fff;border:1px solid #d3cec3;border-radius:8px;color:var(--ink);min-height:38px;padding:8px 10px}input{min-width:0;width:100%}select{cursor:pointer}textarea{font-family:SFMono-Regular,Consolas,monospace;font-size:12px;line-height:1.55;min-height:220px;resize:vertical;width:100%}.button-like{align-items:center;background:#fff;border:1px solid #d3cec3;border-radius:8px;color:var(--ink);cursor:pointer;display:inline-flex;font-size:13px;font-weight:650;min-height:38px;padding:8px 12px}pre{background:var(--surface-soft);border:1px solid var(--line-soft);border-radius:9px;font-size:12px;margin:0;max-height:560px;overflow:auto;padding:14px;white-space:pre-wrap}.table-wrap{overflow:auto}.data-table{border-collapse:separate;border-spacing:0;font-size:13px;width:100%}.data-table th,.data-table td{border-bottom:1px solid var(--line-soft);max-width:360px;overflow:hidden;padding:13px 11px;text-align:left;text-overflow:ellipsis;white-space:nowrap}.data-table th{color:var(--muted);font-size:10px;font-weight:750;letter-spacing:.07em;text-transform:uppercase}.data-table tbody tr{cursor:pointer;transition:background .12s ease}.data-table tbody tr:hover,.data-table tbody tr.selected{background:#eff6f3}.data-table tbody tr:focus-visible{background:#eff6f3;outline:2px solid var(--primary);outline-offset:-2px}.data-table .row-action{color:var(--muted);text-align:right;width:36px}.tier-badge{background:#f0eee8;border-radius:999px;color:#4d5c55;display:inline-flex;font-size:11px;font-weight:700;padding:4px 9px;text-transform:capitalize}.compact-form{align-items:end;display:grid;gap:12px;grid-template-columns:repeat(3,minmax(0,1fr)) auto}.field{display:grid;gap:6px}.field span,.student-picker>span{color:var(--muted);font-size:11px;font-weight:700}.resource-grid{display:grid;gap:16px;grid-template-columns:minmax(0,1.2fr) minmax(360px,.8fr)}.stack{display:grid;gap:16px}.row{align-items:center;display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.row.flush{margin-top:0}.structured-resource{align-items:start;grid-template-columns:minmax(560px,1.35fr) minmax(370px,.65fr)}.resource-list-panel{padding:0;overflow:hidden}.resource-list-panel>.panel-header{padding:18px;margin:0}.record-editor{min-height:360px;position:sticky;top:20px}.structured-form{display:grid;gap:14px;grid-template-columns:repeat(2,minmax(0,1fr))}.structured-form .field-wide{grid-column:1 / -1}.structured-form textarea{min-height:120px}.field small{color:var(--muted);font-size:10px;line-height:1.4}.raw-details{border-top:1px solid var(--line-soft);margin-top:18px;padding-top:14px}.raw-details summary{color:var(--muted);cursor:pointer;font-size:11px;font-weight:700}.raw-details pre{margin-top:10px;max-height:300px}.related-records{border-top:1px solid var(--line-soft);margin-top:18px;padding-top:16px}.subsection-title{align-items:center;display:flex;justify-content:space-between;margin-bottom:10px}.subsection-title h3{font-size:13px}.subsection-title>span{background:var(--surface-soft);border-radius:999px;color:var(--muted);font-size:10px;font-weight:700;padding:3px 7px}.question-row,.answer-row{align-items:flex-start;border-top:1px solid var(--line-soft);display:flex;gap:10px;padding:11px 0}.question-row:first-of-type,.answer-row:first-of-type{border-top:0}.question-row>span:first-child{align-items:center;background:var(--primary-soft);border-radius:50%;color:var(--primary);display:flex;flex:0 0 24px;font-size:10px;font-weight:800;height:24px;justify-content:center}.question-row>div,.answer-row>div{display:grid;flex:1;gap:4px;min-width:0}.question-row strong,.answer-row strong{font-size:12px;line-height:1.4}.question-row small,.answer-row small{color:var(--muted);font-size:10px}.answer-row{align-items:center}.answer-row>span{border-radius:999px;font-size:9px;font-weight:750;padding:4px 7px}.answer-correct{background:#e4f3eb;color:#10543f}.answer-incorrect{background:var(--danger-soft);color:var(--danger)}.answer-ungraded{background:#ecefed;color:#5a6862}.message-list{display:grid;gap:8px;max-height:500px;overflow-y:auto}.message-row{background:var(--surface-soft);border-radius:9px;padding:10px 12px}.message-assistant{background:var(--primary-soft)}.message-row>div{align-items:center;display:flex;justify-content:space-between}.message-row strong{font-size:10px;text-transform:capitalize}.message-row time{color:var(--muted);font-size:9px}.message-row p{font-size:11px;line-height:1.5;margin:6px 0 0;white-space:pre-wrap}.message-row small{color:var(--muted);display:block;font-size:9px;margin-top:6px}.muted-copy{color:var(--muted);font-size:11px}.editor-placeholder{align-items:center;color:var(--muted);display:flex;flex-direction:column;justify-content:center;min-height:320px;padding:28px;text-align:center}.editor-placeholder h3{color:var(--ink);margin:12px 0 4px}.editor-placeholder p{font-size:12px;line-height:1.5;margin:0 0 18px;max-width:280px}.cell-stack{display:grid;gap:2px}.cell-stack span{color:var(--muted);font-size:11px}.entitlement-panel{max-width:820px}.entitlement-panel .structured-form{margin-top:18px}.notice{align-items:flex-start;border-radius:9px;display:flex;gap:10px;padding:12px 14px}.notice.warning{background:#fff8e8;border:1px solid #ead7a3;color:#6e4a12}.notice p{font-size:11px;line-height:1.45;margin:3px 0 0}.success{background:#e9f5ef;border:1px solid #b6d7c8;border-radius:9px;color:#10543f;font-size:12px;padding:11px 13px}.usage-summary{display:grid;gap:10px;grid-template-columns:repeat(5,1fr)}.usage-summary>div{background:var(--surface);border:1px solid var(--line);border-radius:11px;box-shadow:var(--shadow);padding:14px 16px}.usage-summary span{color:var(--muted);display:block;font-size:10px;font-weight:750;letter-spacing:.06em;text-transform:uppercase}.usage-summary strong{display:block;font-size:20px;letter-spacing:-.02em;margin-top:5px}.usage-filters{align-items:center;display:flex;gap:8px}.usage-filters .search{min-width:300px}.feature-badge{background:var(--primary-soft);border-radius:999px;color:var(--primary-dark);display:inline-flex;font-size:10px;font-weight:700;padding:4px 8px;text-transform:capitalize}.model-cell{max-width:250px!important}.account-summary{background:var(--surface);border:1px solid var(--line);border-radius:13px;display:grid;grid-template-columns:repeat(4,1fr)}.account-summary>div{border-left:1px solid var(--line-soft);padding:16px 20px}.account-summary>div:first-child{border-left:0}.account-summary strong{display:block;font-size:14px;margin-top:5px}.toolbar{align-items:end;background:#ffffffb8;border:1px solid var(--line);border-radius:12px;display:flex;gap:18px;padding:10px}.student-picker{display:grid;flex:0 0 190px;gap:5px;padding-left:4px}.tab-list{display:flex;flex:1;gap:4px;overflow-x:auto}.tab-list button{background:transparent;border-color:transparent;color:var(--muted);text-transform:capitalize;white-space:nowrap}.tab-list button.active{background:var(--primary-soft);border-color:var(--primary-soft);color:var(--primary-dark)}.status-badge{align-items:center;border-radius:999px;display:inline-flex;font-size:9px;font-weight:800;letter-spacing:.06em;padding:4px 8px;text-transform:uppercase}.status-draft{background:#e8eef9;color:#35558e}.status-review{background:#fbefcf;color:#835616}.status-published{background:#dfeee8;color:#10543f}.status-archived{background:#ecefed;color:#5a6862}.topic-status-grid{display:grid;gap:10px;grid-template-columns:repeat(4,minmax(120px,1fr))}.topic-status-grid>button{background:#ffffffa6;border-color:var(--line);justify-content:space-between;min-height:56px;padding:9px 14px}.topic-status-grid>button.selected{background:#fff;border-color:var(--primary);box-shadow:0 0 0 2px #15654c14;color:var(--ink)}.topic-status-grid>button strong{font-size:20px}.topic-workspace{align-items:start;display:grid;gap:18px;grid-template-columns:minmax(330px,.72fr) minmax(520px,1.28fr)}.topic-list-panel{max-height:calc(100vh - 180px);overflow:hidden;padding:0;position:sticky;top:20px}.topic-list-panel .panel-header{display:grid;margin:0;padding:18px}.topic-search{min-width:0;width:100%}.topic-list{max-height:calc(100vh - 310px);min-height:280px;overflow-y:auto}.topic-list-item{align-items:center;background:#fff;border:0;border-radius:0;border-top:1px solid var(--line-soft);display:flex;justify-content:space-between;min-height:92px;padding:14px 17px;text-align:left;width:100%}.topic-list-item:hover:not(:disabled){background:var(--surface-soft);border-color:var(--line-soft)}.topic-list-item.selected{background:#edf5f1;box-shadow:inset 3px 0 var(--primary);color:var(--ink)}.topic-list-copy{display:grid;gap:6px;min-width:0}.topic-list-copy>div{align-items:center;display:flex;gap:8px;min-width:0}.topic-list-copy strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.topic-list-copy span,.topic-list-copy small{color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.topic-list-copy small{font-size:10px}.topic-editor{min-width:0;padding:22px}.topic-editor .panel-header{align-items:flex-start}.editor-state{align-items:flex-end;display:grid;gap:7px;justify-items:end}.unsaved-dot{color:#835616;font-size:10px;font-weight:700;white-space:nowrap}.unsaved-dot:before{background:#d99b32;border-radius:50%;content:"";display:inline-block;height:6px;margin-right:5px;width:6px}.topic-json{min-height:560px}.editor-help{background:#f3f6f4;border-left:3px solid #9eb5aa;border-radius:0 7px 7px 0;color:#53625b;font-size:11px;line-height:1.55;margin-top:12px;padding:9px 12px}.editor-help p{margin:0}.editor-actions{border-top:1px solid var(--line-soft);padding-top:14px}.topic-placeholder{align-items:center;color:var(--muted);display:flex;flex-direction:column;justify-content:center;min-height:420px;padding:44px;text-align:center}.topic-placeholder h2{color:var(--ink);margin:14px 0 6px}.topic-placeholder p{line-height:1.55;margin:0 0 20px;max-width:420px}.empty-state{align-items:center;color:var(--muted);display:flex;flex-direction:column;gap:6px;justify-content:center;min-height:150px;padding:24px;text-align:center}.empty-state strong{color:var(--ink);font-size:13px}.empty-state span{font-size:12px}.loading-row{align-items:center;color:var(--muted);display:flex;font-size:12px;gap:8px;justify-content:center;min-height:86px}.error{background:var(--danger-soft);border:1px solid #e5b2a9;border-radius:9px;color:var(--danger);font-size:12px;margin:0;padding:11px 13px}@media(max-width:1180px){.metrics{grid-template-columns:repeat(3,1fr)}.topic-workspace{grid-template-columns:minmax(300px,.7fr) minmax(440px,1.3fr)}.search{min-width:min(340px,42vw)}}@media(max-width:900px){.shell{grid-template-columns:1fr}aside{border-bottom:1px solid var(--line);height:auto;min-height:0;padding:12px 18px;position:static}.brand{margin:0 0 12px}nav{display:flex}nav button{width:auto}.sidebar-note{display:none}.account{border:0;padding:0;position:absolute;right:18px;top:19px}.account>span{display:none}.content{padding:24px 20px 40px}.resource-grid,.topic-workspace,.structured-resource{grid-template-columns:1fr}.record-editor{position:static}.topic-list-panel{max-height:none;position:static}.topic-list{max-height:420px}.account-summary{grid-template-columns:repeat(2,1fr)}.account-summary>div:nth-child(3){border-left:0;border-top:1px solid var(--line-soft)}.account-summary>div:nth-child(4){border-top:1px solid var(--line-soft)}}@media(max-width:680px){.page-heading{align-items:flex-start;flex-direction:column}.page-actions{width:100%}.metrics,.usage-strip{grid-template-columns:repeat(2,1fr)}.usage-strip>div{border-left:0;padding-left:0}.compact-form,.structured-form{grid-template-columns:1fr}.structured-form .field-wide{grid-column:auto}.usage-summary{grid-template-columns:repeat(2,1fr)}.usage-filters{align-items:stretch;flex-direction:column;width:100%}.usage-filters .search{min-width:0}.panel-header{align-items:stretch;flex-direction:column}.search{min-width:0;width:100%}.toolbar{align-items:stretch;flex-direction:column}.student-picker{flex-basis:auto}.topic-status-grid{grid-template-columns:repeat(2,1fr)}.topic-json{min-height:440px}}@media(max-width:430px){.metrics,.usage-strip,.account-summary,.usage-summary{grid-template-columns:1fr}.account-summary>div{border-left:0;border-top:1px solid var(--line-soft)}.account-summary>div:first-child{border-top:0}.content{padding-inline:14px}}