@charset "UTF-8";
:root{--ink:#18372f;--muted:#64756c;--paper:#f6f7f2;--green:#195646;--lime:#d9edaa;--line:#dfe5da;--white:#fff;--orange:#f5e8cb;--red:#a53e31}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.55 system-ui,-apple-system,Segoe UI,sans-serif}button,input,select,textarea{font:inherit}button,a,input,select,textarea{touch-action:manipulation}button,.button{cursor:pointer;border:0;background:var(--green);color:white;border-radius:10px;padding:11px 18px;font-weight:650;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:8px}button:hover,.button:hover{filter:brightness(.95)}button:disabled{cursor:wait;opacity:.6}button.secondary,.button.secondary{background:#edf1e8;color:var(--ink)}button.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}a{color:var(--green)}:focus-visible{outline:3px solid #d99c3e;outline-offset:3px}.layout{display:grid;grid-template-columns:240px 1fr;min-height:100vh}.sidebar{background:#fff;border-right:1px solid var(--line);padding:30px 22px;display:flex;flex-direction:column;gap:28px;position:sticky;top:0;height:100vh}.brand{display:flex;gap:10px;align-items:center;font-size:24px;font-weight:750;letter-spacing:-1px}.brandmark{display:grid;place-items:center;background:var(--green);color:var(--lime);width:38px;height:38px;border-radius:12px;font-size:26px}.sidebar small{display:block;color:var(--muted);font-size:12px;letter-spacing:1px;margin-top:5px}.nav{display:grid;gap:8px}.nav button{text-align:left;justify-content:flex-start;background:transparent;color:var(--muted);font-weight:550}.nav button.active{background:#edf3e3;color:var(--green)}.side-note{margin-top:auto;padding:18px;border:1px solid var(--line);border-radius:14px;font-size:13px}.side-note strong{display:block;margin-bottom:8px}.main{padding:28px 42px 60px;max-width:1500px;width:100%;margin:auto}.topbar{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:22px;margin-bottom:30px;color:var(--muted);font-size:13px}.topbar strong{color:var(--ink)}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(30px,3vw,44px);line-height:1.15;letter-spacing:-1.5px;margin-bottom:16px}h2{font-size:23px;letter-spacing:-.5px;margin-bottom:16px}h3{font-size:18px;line-height:1.35;margin-bottom:9px}.eyebrow{font-size:12px;font-weight:750;letter-spacing:1.8px;text-transform:uppercase;color:var(--muted);margin-bottom:12px}.muted{color:var(--muted)}.hero{display:grid;grid-template-columns:1.4fr 1fr;gap:35px;align-items:center;background:var(--green);color:#fff;padding:38px;border-radius:22px;margin-bottom:26px;overflow:hidden}.hero .eyebrow,.hero .muted{color:#c3d8cb}.hero p{max-width:510px;margin-bottom:24px}.hero button{background:var(--lime);color:var(--ink)}.geometry{position:relative;min-height:185px;display:grid;place-items:center}.geometry svg{width:100%;max-width:330px;height:190px}.geometry text{fill:#d9edaa;font-family:system-ui;font-size:15px}.row{display:flex;justify-content:space-between;gap:16px;align-items:center;margin:26px 0 14px}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.card{background:white;border:1px solid var(--line);border-radius:17px;padding:23px}.topic-card{display:flex;flex-direction:column;min-height:258px}.topic-card p{font-size:13px}.topic-card button{margin-top:auto;width:100%}.topic-icon{width:42px;height:42px;display:grid;place-items:center;background:#eef2e4;border-radius:12px;color:var(--green);font-size:25px;margin-bottom:16px}.tag{display:inline-block;font-size:12px;border-radius:7px;background:#f0f2ec;padding:3px 8px;font-weight:650}.tag.good{background:#e3efd7}.tag.warn{background:#f5e8cb}.tag.error{background:#f8e1dc}.progress{height:7px;background:#e9eee4;border-radius:9px;overflow:hidden;margin:12px 0 9px}.progress span{display:block;background:var(--green);height:100%}.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:30px}.metric{padding:22px;border-radius:15px;background:white;border:1px solid var(--line)}.metric strong{display:block;font-size:30px;line-height:1.3}.metric small{color:var(--muted)}label{display:block;font-size:14px;font-weight:600;margin-bottom:14px}input,select,textarea{display:block;width:100%;border:1px solid #cbd4c7;border-radius:9px;padding:11px 12px;background:white;color:var(--ink);margin-top:6px}input[type=checkbox]{display:inline-block;width:auto;margin:0 8px 0 0}textarea{min-height:140px;resize:vertical}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}.form-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.intro{max-width:760px;margin-bottom:28px}.choices{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:20px 0}.choices button{background:#f2f4ec;border:1px solid var(--line);color:var(--ink);display:block;padding:16px 10px;font-size:14px}.choices button.selected{background:var(--green);color:#fff}.choices small{display:block;font-size:11px;font-weight:400;margin-top:6px}.tabs{display:flex;gap:8px;margin:26px 0}.tabs button{background:#e9eee3;color:var(--ink)}.tabs button.active{background:var(--green);color:white}.formula{padding:20px;background:#eef3e3;border-left:3px solid var(--green);font-size:20px;border-radius:8px;margin:20px 0}.callout{padding:17px 20px;border-radius:12px;background:var(--orange);font-size:14px;margin:20px 0}.task{max-width:880px;margin:0 auto}.question{font-size:23px;line-height:1.55;margin:24px 0}.task-entry{max-width:430px}.task-entry label{font-weight:400}.feedback{padding:22px;background:#eaf1df;border-radius:14px;margin:24px 0}.feedback.wrong{background:#faf0df}.feedback h3{margin-bottom:12px}.hint{border-left:3px solid #ceac61;background:#faf5e9;padding:12px 18px;margin:12px 0}.task-meta{display:flex;justify-content:space-between;gap:10px;align-items:center}.unit{font-size:14px;color:var(--muted)}.table-wrap{overflow:auto;background:white;border:1px solid var(--line);border-radius:14px;margin:20px 0}table{width:100%;border-collapse:collapse;font-size:13px}th,td{padding:13px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}th{background:#f0f3eb;font-weight:650}th:first-child{min-width:150px}.cell{min-width:95px}.cell button{font-size:12px;padding:5px 8px}.auth{display:grid;grid-template-columns:1fr 1fr;min-height:100vh}.auth-story{background:var(--green);color:white;padding:10vw 7vw;display:flex;flex-direction:column;justify-content:center}.auth-story h1{font-size:clamp(40px,5vw,65px)}.auth-story .eyebrow{color:var(--lime)}.auth-form{padding:60px 8vw;display:flex;flex-direction:column;justify-content:center}.auth-form form{max-width:430px}.auth-form .brand{margin-bottom:42px}.loading{padding:80px;text-align:center}.empty{padding:28px;text-align:center;color:var(--muted);background:white;border:1px dashed var(--line);border-radius:14px}.error-text{color:var(--red);font-size:14px;white-space:pre-wrap;margin-top:15px}#notice{position:fixed;bottom:24px;right:24px;background:var(--ink);color:white;border-radius:12px;padding:14px 20px;max-width:450px;z-index:100;box-shadow:0 8px 30px #18372f26}#notice:empty{display:none}.detail{white-space:pre-wrap}.checklist{max-height:260px;overflow:auto;padding:15px;border:1px solid var(--line);border-radius:10px}.checklist label{font-weight:400;margin:10px 0}.sources{font-size:14px}.sources li{margin-bottom:14px}.footer{font-size:12px;color:var(--muted);margin-top:35px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}@media(max-width:1100px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.main{padding:24px}.layout{grid-template-columns:205px 1fr}.hero{padding:28px;grid-template-columns:1fr}.hero .geometry{display:none}}@media(max-width:740px){.layout{display:block}.sidebar{position:static;height:auto;padding:17px 20px;gap:15px;border-right:0;border-bottom:1px solid var(--line)}.sidebar small,.side-note{display:none}.nav{display:flex;overflow:auto;gap:3px}.nav button{white-space:nowrap;font-size:13px;padding:9px 12px}.brand{font-size:21px}.main{padding:20px 16px}.topbar{margin-bottom:24px}.grid,.grid.two{grid-template-columns:1fr}.hero{padding:26px}.metrics{gap:8px}.metric{padding:14px 11px}.metric strong{font-size:24px}.metric small{font-size:11px}.choices{grid-template-columns:1fr 1fr}.auth{display:block}.auth-story{padding:32px 24px}.auth-story h1{font-size:36px}.auth-story .geometry{display:none}.auth-form{padding:32px 24px}.form-grid{grid-template-columns:1fr}.question{font-size:20px}.card{padding:20px}.row{align-items:flex-start}.row h2{font-size:21px}}@media print{.sidebar,.topbar,.tabs,button,.form-actions,#notice{display:none!important}.layout,.main{display:block;padding:0}.card{break-inside:avoid}.hero{background:white;color:black}.grid{display:block}}

.task-figure{margin:10px 0 25px;padding:16px;background:#f7f9f3;border-radius:12px}.task-figure svg{display:block;width:100%;max-width:360px;height:180px;margin:auto}.task-figure path{fill:none;stroke:#195646;stroke-width:2}.task-figure text{fill:#195646;font-size:13px;font-family:system-ui}.task-figure figcaption{font-size:12px;color:#64756c;text-align:center;margin-top:10px}
.main{min-width:0}

.package-options,.package-fieldset{border:1px solid var(--line);border-radius:12px;padding:16px;margin:18px 0}.package-options label{display:flex;gap:12px;align-items:flex-start;background:#f4f6ee;padding:14px;border-radius:9px;font-weight:400}.package-options input{display:inline-block;width:auto;margin:6px 0 0;flex-shrink:0}.package-editor-question{margin:18px 0}.package-editor-question summary{cursor:pointer;padding:8px 0;margin-bottom:14px}.package-review{border-top:1px solid var(--line);padding:20px 0}.package-review-form{background:#f4f6ee;border-radius:12px;padding:18px}.package-editor-question textarea{min-height:95px}.package-fieldset legend,.package-options legend{font-weight:650}.package-options input[type=radio]{accent-color:var(--green)}
.class-picker { display:block; margin:20px 0; color:inherit; }
.class-picker select { width:100%; color:#173d35; background:#fff; }
.material-images { display:grid; grid-template-columns:repeat(auto-fit,minmax(150px,1fr)); gap:16px; margin:16px 0; }
.material-images figure { margin:0; border:1px solid #d5ded8; border-radius:12px; padding:10px; min-width:0; }
.material-images img { width:100%; height:220px; object-fit:contain; background:#f3f5ef; }
.material-images figcaption { overflow-wrap:anywhere; font-size:.85rem; margin:8px 0; }
.review-row { display:flex; align-items:center; flex-wrap:wrap; gap:12px; border-bottom:1px solid #d5ded8; padding:14px 0; }
.review-row span { flex:1; min-width:180px; }
.ai-reconcile { min-width:180px; margin-top:12px; }
.ai-reconcile input[type=number] { width:100%; }
.detail { white-space:pre-wrap; overflow-wrap:anywhere; }
textarea { min-height:110px; }
select { max-width:100%; }
.metrics { grid-template-columns:repeat(auto-fit,minmax(170px,1fr)); }
.metric { min-width:0; overflow-wrap:anywhere; }
.sidebar { overflow-y:auto; }
@media(max-width:740px){.metrics { grid-template-columns:repeat(2,minmax(0,1fr)); }.metric strong { font-size:21px; }.class-picker { margin:0; }.sidebar { overflow-y:visible; }}

/* Shared task flow and responsive navigation. */
[hidden]{display:none!important}.main{margin:0 auto;align-self:start}.main:focus{outline:0}.card{margin-bottom:18px}.card .card{margin-bottom:0}.skip-link{position:fixed;top:-80px;left:16px;z-index:200;background:#fff;padding:12px}.skip-link:focus{top:12px}.breadcrumbs{display:flex;align-items:center;gap:7px;flex-wrap:wrap;margin:-10px 0 24px;font-size:13px}.breadcrumbs button{font-size:13px;padding:5px 8px;border:0}.breadcrumbs [aria-current]{color:var(--muted)}.account-link{font-size:13px;padding:6px 10px;max-width:65%;overflow-wrap:anywhere}.section-tools{margin-bottom:24px}.mobile-nav{display:none}.filter-bar{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:16px;background:#edf1e8;border-radius:14px;padding:18px;margin-bottom:22px}.filter-bar label{margin:0;min-width:0}.next-step{background:#edf3e3;border-color:#c3d5b0}.task-card{display:flex;flex-direction:column;min-width:0}.task-card .row{margin:0 0 14px;flex-wrap:wrap}.task-card h2{font-size:21px}.task-card button{margin-top:auto;align-self:flex-start}.feedback-inbox{margin-top:24px}.action-metric{display:block;text-align:left;color:var(--ink);width:100%;font-weight:400}.action-metric strong{color:var(--green);font-weight:750}.action-metric span{font-size:14px;display:block}.workflow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));padding:0;gap:12px;list-style:none;margin:0 0 30px}.workflow li{font-size:13px;border-bottom:3px solid var(--line);padding:12px 4px;overflow-wrap:anywhere}.workflow li span{display:inline-grid;place-items:center;width:24px;height:24px;border-radius:50%;background:#e6ebdf;margin-right:6px}.workflow li.active{border-color:var(--green);font-weight:700}.workflow li.active span{background:var(--green);color:white}.save-status{font-size:13px;color:var(--green);padding:10px 12px;background:#edf3e3;border-radius:8px;margin:14px 0}.student-preview{border:1px solid var(--line);border-radius:18px;width:min(760px,calc(100% - 28px));max-height:88dvh;padding:24px;color:var(--ink);background:var(--paper)}.student-preview::backdrop{background:#122d26a6}.student-preview .row{margin-top:0}.working-status{position:fixed;inset:0;z-index:250;background:#18372fda;color:white;display:flex;align-items:center;justify-content:center;gap:16px;padding:30px;font-size:19px}.spinner{width:28px;height:28px;border:3px solid #ffffff50;border-top-color:#fff;border-radius:50%;animation:spin 1s linear infinite;flex-shrink:0}@keyframes spin{to{transform:rotate(360deg)}}.table-wrap{max-height:65vh;isolation:isolate}.table-wrap thead th{position:sticky;top:0;z-index:2}.table-wrap tr>th:first-child,.table-wrap tr>td:first-child{position:sticky;left:0;background:#fff;z-index:1}.table-wrap thead th:first-child{z-index:3;background:#f0f3eb}.table-wrap tbody th{font-weight:600}.task-position{position:sticky;top:0;z-index:4;background:var(--paper);padding:8px 0;font-weight:650}.task>.card{margin-top:16px}button{min-height:44px}.topbar{gap:12px}.sidebar .class-name{margin:0}.sidebar .nav button{white-space:normal}
@media(max-width:740px){body{padding-bottom:calc(76px + env(safe-area-inset-bottom))}.sidebar{padding:14px 16px;gap:10px}.sidebar>.nav{display:none}.sidebar .class-picker{max-width:100%}.class-picker select{padding:8px}.mobile-nav{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));position:fixed;bottom:0;left:0;right:0;background:#fff;border-top:1px solid var(--line);padding:7px 7px calc(7px + env(safe-area-inset-bottom));gap:4px;z-index:110}.mobile-nav button{background:transparent;color:var(--muted);padding:10px 3px;font-size:12px;min-width:0;min-height:48px}.mobile-nav button.active{background:#edf3e3;color:var(--green)}.topbar{margin-bottom:20px;padding-bottom:14px}.breadcrumbs{margin-bottom:18px}.workflow{grid-template-columns:1fr 1fr;gap:5px;margin-bottom:22px}.workflow li{padding:8px 3px;font-size:12px}.workflow li span{width:21px;height:21px}.filter-bar{grid-template-columns:1fr 1fr;padding:12px;gap:12px}.filter-bar label{font-size:12px}.filter-bar input,.filter-bar select{padding:9px 7px}.task .form-actions{position:sticky;bottom:calc(69px + env(safe-area-inset-bottom));background:var(--paper);padding:10px 0;z-index:5}.task .form-actions button{flex:1}.student-preview{padding:18px}.student-preview .row{align-items:flex-start}.student-preview h2{font-size:21px}.working-status{font-size:17px}.table-wrap{max-height:60vh}#notice{bottom:calc(83px + env(safe-area-inset-bottom));left:16px;right:16px;max-width:none}.action-metric span{font-size:13px}}
@media(prefers-reduced-motion:reduce){.spinner{animation:none}}
@media(max-width:740px){.task>.form-actions{position:static;padding:12px 0}.task form .form-actions{position:sticky;bottom:calc(69px + env(safe-area-inset-bottom));background:var(--paper);padding:10px 0;z-index:5}}
@media print{body{padding:0}.mobile-nav,.breadcrumbs,.workflow,.filter-bar,.save-status,.skip-link,.working-status{display:none!important}.table-wrap{max-height:none;overflow:visible}.table-wrap th,.table-wrap td{position:static!important}.card{break-inside:avoid}}
:root {
  --ink:#24391b;
  --muted:#51634a;
  --paper:#f6f9f2;
  --green:#285419;
  --lime:#ddefcd;
  --line:#d7e4cf;
  --gw-green:#76bf36;
  --gw-tint:#eaf4e3;
}
.brand { gap:12px; letter-spacing:-.65px; }
.brand-logo { display:block; width:48px; height:48px; flex:none; object-fit:contain; border:1px solid var(--line); border-radius:12px; background:var(--white); }
.auth-form .brand-logo { width:64px; height:64px; }
.auth-story { background:linear-gradient(150deg,#213e16,var(--green) 70%,#356620); border-inline-end:6px solid var(--gw-green); }
.sidebar .brand { padding-bottom:16px; border-bottom:3px solid var(--gw-green); }
.nav button.active,.mobile-nav button.active,.tabs button:not(.active),button.secondary,.button.secondary { background:var(--gw-tint); color:var(--green); }
.hero .eyebrow,.hero .muted { color:var(--lime); }
.progress { background:var(--gw-tint); }
.progress span { background:var(--gw-green); }
:focus-visible { outline-color:var(--green); }
.auth-story :focus-visible,.hero :focus-visible { outline-color:var(--lime); }
.app-credit { display:flex; flex-wrap:wrap; align-items:center; gap:4px 16px; color:var(--muted); font-size:13px; }
.app-credit a { overflow-wrap:anywhere; }
.auth-form .app-credit { padding-top:16px; margin-top:18px; border-top:1px solid var(--line); }
@media(max-width:740px){
  .auth-story { border-inline-end:0; border-bottom:5px solid var(--gw-green); }
  .sidebar .brand { padding-bottom:10px; }
  .brand-logo,.auth-form .brand-logo { width:44px; height:44px; }
}