:root{--green:#205b45;--ink:#173a2b;--muted:#708074;--bg:#f8faf5;--line:#e0e8db;--pale:#edf4e7;--radius:20px;font:16px/1.55 'Segoe UI',Arial,sans-serif;color:var(--ink);background:var(--bg)}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button,a,input,select,textarea{outline-offset:4px}button:focus-visible,a:focus-visible{outline:3px solid #c09427}button{cursor:pointer;border:1px solid var(--line);border-radius:12px;background:white;color:var(--green);padding:11px 17px;font-weight:600}button:hover{background:var(--pale)}button:disabled{opacity:.6;cursor:wait}button.primary{background:var(--green);border-color:var(--green);color:white}button.primary:hover{background:#2b7254}button.danger{color:#b24536}button.small{padding:7px 12px;font-size:13px}input,select,textarea{width:100%;padding:12px 14px;border:1px solid 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pre{white-space:pre-wrap;font:inherit;background:var(--bg);border-radius:12px;padding:18px}.due{color:#a67628;font-size:12px}#toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);background:var(--ink);color:white;padding:13px 23px;border-radius:12px;z-index:100;display:none;max-width:90vw}footer{border-top:1px solid var(--line);padding:15px 30px;font-size:11px;color:var(--muted);display:flex;justify-content:space-between}.contrast{--ink:#071d12;--muted:#334638;--line:#7c927f;--bg:white}.reduced *{animation:none!important;transition:none!important}button.link{border:0;background:none;padding:0;font-size:12px}.settingsgrid{max-width:850px}.studentname{font-weight:600}.meta{font-size:12px;color:var(--muted)}
@media(min-width:1500px){.hero{min-height:350px}.hero h2{font-size:46px}}@media(max-width:1180px){.homegrid{grid-template-columns:1fr}.rightcol{grid-template-columns:repeat(3,1fr)}.heroart{min-width:180px}.cards{grid-template-columns:repeat(3,1fr)}}@media(max-width:900px){.sidebar{width:205px}.shell{margin-left:205px}.topbar{padding:15px 20px}main{padding:25px 20px}.hero h2{font-size:31px}.herotext{padding:25px}.rightcol{grid-template-columns:1fr 1fr}.cards{grid-template-columns:1fr 1fr}.grades{gap:8px}.gradecard h3{font-size:19px}}@media(max-width:680px){.sidebar{transform:translateX(-100%);transition:transform .2s}.menuopen .sidebar{transform:translateX(0);box-shadow:0 0 0 100vw #173a2b55}.shell{margin-left:0}.menu{display:block;padding:7px 11px}.topbar{padding:10px 14px;height:68px;gap:8px}.topbar .search{display:none}.langs button{padding:5px 7px}.topbar .userlabel{display:none}main{padding:22px 14px}.pagehead{align-items:flex-start}.pagehead h1{font-size:27px}.pagehead .actions{margin:0}.hero{grid-template-columns:1fr;min-height:0}.herotext{padding:25px}.heroart{height:200px;order:-1}.hero h2{font-size:32px}.stats{gap:7px}.stat{padding:12px 9px;gap:7px}.stat i{font-size:19px}.stat b{font-size:20px}.stat small{font-size:10px}.grades{grid-template-columns:1fr 1fr}.cards,.rightcol,.lessons,.formgrid,.authlayout{grid-template-columns:1fr}.authlayout{gap:15px;margin:0}.authart{min-height:0;padding:23px}.authart img{display:none}.authart h1{font-size:27px;margin:0}.authform{padding:10px}.sectionhead h2{font-size:21px}.panel{padding:18px}.full{grid-column:auto}.embed{min-height:600px}dialog.wide{width:100vw;height:98vh;border-radius:12px}.toolbar select{max-width:100%}.pagehead button{font-size:12px;padding:8px 11px}}
.icon{display:inline-block;vertical-align:middle;flex-shrink:0}.brand i{color:#548b3c}.gradecard .art{height:94px}.bigicon{width:64px;height:64px;background:var(--pale);border-radius:16px;display:grid!important;place-items:center}.gradecard .bioart{max-width:100%}.hero .actions button{white-space:nowrap;font-size:14px}.stat i .icon{vertical-align:middle}

/* Account handoff, teacher-only support editor and mobile learner navigation. */
.mobile-tabs{display:none}.support-details{border:1px solid var(--line);border-radius:12px;padding:16px;margin:16px 0}.support-details summary{cursor:pointer;font-weight:600}.condition-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:16px 0}.condition-grid .check{margin:0;align-items:flex-start;font-size:13px}.account-card{padding:22px;background:var(--pale);border:1px solid var(--line);border-radius:16px}.account-card h2{margin-top:10px}.account-card dl{display:grid;grid-template-columns:105px 1fr;gap:12px}.account-card dt{color:var(--muted)}.account-card dd{margin:0;font-weight:700;overflow-wrap:anywhere}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #ad7828;outline-offset:3px}.heroart img{object-position:center}.card,.panel,.lesson{min-width:0}pre{overflow-wrap:anywhere}.modalhead{position:sticky;top:0;background:white;z-index:2}#modal{overscroll-behavior:contain}
@media(max-width:680px){.student-view .mobile-tabs{position:fixed;display:grid;grid-template-columns:repeat(4,1fr);inset:auto 0 0;background:#fffffff5;border-top:1px solid var(--line);padding:5px 7px calc(5px + env(safe-area-inset-bottom));z-index:35;backdrop-filter:blur(12px)}.mobile-tabs button{display:flex;flex-direction:column;gap:4px;justify-content:center;align-items:center;padding:9px 3px;border-radius:12px;font-size:11px}.mobile-tabs button span{font-size:11px;width:auto}.student-view .shell{padding-bottom:85px}.student-view #toast{bottom:90px}.condition-grid{grid-template-columns:1fr}.pagehead{flex-wrap:wrap}.modalbody{padding:18px}dialog{max-height:92dvh}dialog.wide{height:96dvh}.hero .actions button{white-space:normal}.topbar{position:sticky;top:0;z-index:20}.topbar .spacer{min-width:0}.stats .stat{min-width:0}.stat small{overflow-wrap:anywhere}.taskrow{flex-wrap:wrap}.taskrow button{min-height:44px}.student-view .rightcol{order:-1}.student-view .homegrid{display:flex;flex-direction:column}.student-view .rightcol .panel:not(:first-child){display:none}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}

.sidebar nav{overflow-y:auto;min-height:0;margin:0 -6px;padding:0 6px}@media(max-height:920px){.sidebar{padding-top:18px}.brand{padding-bottom:16px}.sidebar nav{gap:2px}.sidebar nav button{padding:9px 14px}.sidefoot{padding:12px 10px}}
.quizdetail{display:grid;gap:8px;margin:12px 0}.qrow{border:1px solid var(--line);border-left:4px solid #28703a;border-radius:10px;padding:10px 14px;font-size:14px;color:var(--ink)}.qrow.bad{border-left-color:#b24536;background:#fff7f5}.qrow p{margin:4px 0 0;color:var(--muted);font-size:13px}
.pwwrap{position:relative;display:block}.pwwrap input{padding-right:96px}.pwtoggle{position:absolute;right:6px;top:12px;padding:6px 10px;font-size:12px;border-radius:8px}
dialog.wide.lesson .modalhead{display:none}dialog.wide.lesson .modalbody{height:100%}
@media(max-width:680px){.teacher-view .mobile-tabs{position:fixed;display:grid;grid-template-columns:repeat(4,1fr);inset:auto 0 0;background:#fffffff5;border-top:1px solid var(--line);padding:5px 7px calc(5px + env(safe-area-inset-bottom));z-index:35;backdrop-filter:blur(12px)}.teacher-view .shell{padding-bottom:85px}.teacher-view #toast{bottom:90px}}
.badge.ai{background:#eef1ff;color:#3d4fa8}.badge.ai.correct{background:#e3f3e4;color:#28703a}.badge.ai.partial{background:#fff1d9;color:#876421}.badge.ai.incorrect{background:#ffe6e1;color:#a63a2a}.badge.flag{background:#c8402e;color:#fff}tr.attn td{background:#fff6f3}.note.warn{border-left-color:#c8402e;background:#fff3ef}
.attention{border-color:#f0b9ad;background:linear-gradient(180deg,#fff6f3,#fff);margin-bottom:22px}.attention .sectionhead{margin:0 0 6px}.attention h2{font-size:19px;color:#a63a2a}
.aibox{border:1px solid #d9def7;background:#f6f7ff;border-radius:14px;padding:14px 16px;margin:14px 0}.aibox.correct{border-color:#c6e5c9;background:#f3faf3}.aibox.incorrect{border-color:#f2c9c0;background:#fff7f5}.aihead{display:flex;justify-content:space-between;gap:10px;align-items:center;flex-wrap:wrap}.aibox h4{margin:10px 0 4px;font-size:13px}.aibox ul{margin:0;padding-left:20px;font-size:14px}.aibox ul.bad li::marker{color:#c8402e}.aibox ul.good li::marker{color:#28703a}.aiaccept{margin:6px 0 4px}.modalbody h4{margin:16px 0 6px}
.attemptsleft{font-size:14px;background:#eef1ff;border-radius:10px;padding:10px 14px}.attemptsleft.done{background:var(--pale)}.attempts{margin:12px 0}.attempts summary{cursor:pointer;font-weight:600;font-size:14px}.attempt{border-top:1px solid var(--line);padding:8px 0}
.classbars{display:grid;gap:10px;margin-bottom:18px}.classbar{display:grid;grid-template-columns:minmax(90px,180px) 1fr 52px;gap:12px;align-items:center;font-size:14px}.classbar .bar,.topicbar .bar{position:relative;height:12px;background:var(--pale);border-radius:8px}.classbar .bar b,.topicbar .bar b{display:block;height:100%;border-radius:8px;background:#3b6fd8}.classbar .bar b.low,.topicbar .bar b.low{background:#e0705f}.classbar .bar i,.topicbar .bar i{position:absolute;top:-4px;bottom:-4px;border-left:2px dashed #c8402e}.classbar strong{text-align:right}
.chartgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.chartgrid .sectionhead{margin:4px 0 0}.chart{width:100%;height:auto;margin-top:8px}.chart text{font-size:11px;fill:var(--muted)}.chart .grid{stroke:var(--line)}.chart .target{stroke:#d33b2c;stroke-width:2;stroke-dasharray:7 5}.chart .avg{fill:none;stroke:#2f63d1;stroke-width:3;stroke-linejoin:round}.chart .dot{fill:#2f63d1;stroke:#fff;stroke-width:2}.legend{display:flex;gap:16px;flex-wrap:wrap;font-size:12px;color:var(--muted);margin:6px 0 10px}.legend i{display:inline-block;width:22px;margin-right:6px;vertical-align:middle;border-top:3px solid #2f63d1}.legend i.red{border-top:2px dashed #d33b2c}.okText{color:#28703a}.lowText{color:#b8392a}.insight ul{padding-left:20px;font-size:14px}.insight h4{margin:8px 0 4px}
@media(max-width:900px){.chartgrid{grid-template-columns:1fr}}
.classchips{margin-bottom:16px;flex-wrap:wrap}
.classchips button small{opacity:.75;margin-left:6px;font-weight:600}
.chart .inc{fill:none;stroke:#8a4fd0;stroke-width:2.5;stroke-linejoin:round;stroke-dasharray:1 0}
.chart .avgdot{fill:#2f63d1;stroke:#fff;stroke-width:1.5}
.chart .incdot{fill:#8a4fd0;stroke:#fff;stroke-width:1.5}
.chart.pulse .avg{stroke-width:2.5}
.legend i.purple{border-top-color:#8a4fd0}
.topicbars{display:grid;gap:9px}
.topicbar{display:grid;grid-template-columns:minmax(0,1fr) 110px 42px;grid-template-rows:auto auto;column-gap:10px;align-items:center;font-size:13px}
.topicbar span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topicbar small{grid-column:1;color:var(--muted);font-size:11px}
.inccards{display:grid;gap:10px}
.inccard{border:1px solid var(--line);border-radius:14px;padding:10px 14px}
.inccard .sectionhead{margin:0}
.spark{width:100%;height:46px;display:block;margin:6px 0}
.spark .inc{fill:none;stroke:#8a4fd0;stroke-width:2}
.spark .target{stroke:#d33b2c;stroke-width:1;stroke-dasharray:4 3}
.insightpanel ul{margin:8px 0 0;padding-left:20px;display:grid;gap:8px}
.roletabs{display:grid;grid-template-columns:1fr 1fr;gap:6px;padding:5px;margin:16px 0 4px;background:var(--pale);border-radius:14px}.roletabs button{border:0;background:transparent;padding:12px 8px;font-size:15px}.roletabs button.active{background:white;box-shadow:0 2px 8px #173a2b1f;color:var(--green)}.classlabel{background:var(--pale);color:var(--green);font-weight:700;padding:7px 14px;border-radius:999px;font-size:14px;white-space:nowrap}
.shello{background:linear-gradient(120deg,#205b45,#2f7f8f);color:white;border-radius:var(--radius);padding:24px 26px;margin-bottom:16px}.shello .eyebrow,.shello .muted{color:#e6f4ee}.shello h1{margin:4px 0}.sstats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:22px}.sstats .stat b{font-size:26px;display:block}.stasks{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px;margin-bottom:24px}.stask{background:white;border:1px solid var(--line);border-left:5px solid #c09427;border-radius:16px;padding:16px;display:flex;flex-direction:column;gap:8px}.stask.retry{border-left-color:#b24536}.stask.wait{border-left-color:#3d7fa8}.stask.done{border-left-color:var(--green);opacity:.9}.stask h3{font-size:16px;line-height:1.35}.stask button{margin-top:auto;align-self:flex-start}.stask button.primary{padding:12px 20px}.stask-top{display:flex;justify-content:space-between;gap:8px;align-items:center}.sstate{font-size:12px;font-weight:700;padding:3px 9px;border-radius:999px;background:#fbf3df;color:#8a6510}.sstate.retry{background:#fbe7e3;color:#b24536}.sstate.wait{background:#e5f0f7;color:#2c6a91}.sstate.done{background:var(--pale);color:var(--green)}.due{font-size:13px;color:var(--muted);margin:0}.due.late{color:#b24536;font-weight:600}
.sresults{display:grid;gap:8px;margin-bottom:24px}.sresult{display:flex;justify-content:space-between;align-items:center;gap:10px;text-align:left;font-weight:500;color:var(--ink);padding:13px 16px}.sresult b{font-size:17px}.slab{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap}.slab h3{display:flex;align-items:center;gap:8px}
@media(max-width:680px){.shello{padding:20px}.shello h1{font-size:26px}.sstats{gap:6px}.sstats .stat{padding:12px 8px;text-align:center}.sstats .stat b{font-size:22px}.stasks{grid-template-columns:1fr}.stask button,.slab button{width:100%;align-self:stretch;padding:14px}.roletabs button{padding:14px 6px}.topbar .classlabel{font-size:12px;padding:5px 10px}}