:root{--navy:#0b1f39;--blue:#175bd5;--blue-dark:#1347a7;--red:#e4434b;--ink:#15243a;--muted:#536479;--border:#dbe3ed;--surface:#fff;--canvas:#f2f5fa;--radius:16px;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--canvas);font-size:16px;line-height:1.6}*{box-sizing:border-box}body{margin:0}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}button,input,select,textarea{font:inherit}button,a,input,textarea,select{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #e69613;outline-offset:4px}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(1.8rem,3vw,2.75rem);line-height:1.15;letter-spacing:-.035em;margin-bottom:1rem}h2{font-size:1.3rem;line-height:1.3;letter-spacing:-.02em}h3{font-size:1.07rem;line-height:1.4}p{margin-bottom:1rem}img{max-width:100%}.small,.hint{font-size:.875rem}.muted,.hint{color:var(--muted)}.eyebrow{display:block;letter-spacing:.1em;font-size:.875rem;font-weight:750;line-height:1.4}.button{display:inline-flex;align-items:center;justify-content:center;gap:.7rem;padding:.8rem 1.15rem;background:var(--blue);color:#fff;border:1px solid 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#dfc483;border-radius:10px;color:#664811}.notice.success{background:#e5f5ec;color:#155b3c;border-color:#a8d7bd}.brand{display:flex;align-items:center;gap:.8rem;color:white;text-decoration:none!important;font-size:1.2rem;font-weight:850;letter-spacing:.03em}.brand img{object-fit:contain;border-radius:10px;background:white;padding:4px;flex-shrink:0}.brand small{display:block;font-size:.68rem;letter-spacing:.12em;font-weight:600}.sidebar{position:fixed;inset:0 auto 0 0;width:258px;padding:2rem 1.5rem;background:var(--navy);color:#b9c9e2;display:flex;flex-direction:column}.rail-label{font-size:.8rem;letter-spacing:.12em;margin:3rem 1rem 1rem}.sidebar nav a{display:flex;justify-content:space-between;color:#c2d0e4;padding:.9rem 1rem;border-radius:9px;margin-bottom:.4rem;min-height:46px;font-weight:550}.sidebar nav a:hover,.sidebar nav a.selected{background:#1e3b61;color:#fff;text-decoration:none}.sidebar nav a.selected{border-left:3px solid #75a5ff}.rail-bottom{margin-top:auto;padding-top:3rem;font-size:.875rem}.rail-bottom a{display:block;color:#fff;margin-bottom:1rem}.rail-bottom span{color:#a4b6ce}.workspace{margin-left:258px;min-height:100vh}.topbar{background:#fff;border-bottom:1px solid var(--border);min-height:86px;padding:1rem 2.5rem;display:flex;align-items:center;justify-content:space-between;gap:1rem}.topbar>.eyebrow{color:var(--muted)}.account{display:flex;align-items:center;gap:1.3rem;font-size:.875rem;overflow-wrap:anywhere}.text-button{background:transparent;border:0;color:var(--blue);font-weight:650;padding:.5rem}.workspace main{max-width:1360px;margin:auto;padding:2.5rem}.workspace footer{padding:1rem 2.5rem 2rem;color:var(--muted);font-size:.875rem}.page-heading{display:flex;justify-content:space-between;align-items:center;gap:1rem;margin-bottom:2rem}.page-heading .eyebrow{color:var(--blue);margin-bottom:.65rem}.page-heading p{margin:0;color:var(--muted);max-width:700px}.count{padding:.5rem .85rem;border:1px solid var(--border);border-radius:8px;background:white;white-space:nowrap}.course-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.3rem}.course-card{display:flex;flex-direction:column;min-height:258px;background:white;padding:1.5rem;border:1px solid var(--border);border-top:4px solid var(--blue);border-radius:12px;color:var(--ink);transition:transform .18s,border-color .18s}.course-card:nth-child(3n+2){border-top-color:var(--red)}.course-card:hover{transform:translateY(-3px);border-color:#83a7e5;text-decoration:none;box-shadow:0 8px 25px #16376b0a}.course-marker{display:flex;align-items:center;justify-content:space-between;margin-bottom:1.8rem}.course-marker>span:first-child{font-size:1.6rem;font-weight:750;color:#294366;font-variant-numeric:tabular-nums}.course-card>.eyebrow{font-size:.8rem;color:var(--muted)}.course-card h2{margin:.65rem 0 1.5rem;font-size:1.35rem}.card-footer{border-top:1px solid var(--border);padding-top:1rem;margin-top:auto;display:flex;justify-content:space-between;font-weight:650;color:var(--blue)}.panel{background:white;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.padded{padding:1.5rem}.panel-heading{padding:1.4rem 1.5rem;display:flex;justify-content:space-between;align-items:center;gap:1rem;border-bottom:1px solid var(--border)}.panel-heading h2{margin:0}.panel-heading>span{font-size:.875rem;color:var(--muted)}.empty{border:1px solid var(--border);border-radius:var(--radius);background:white;padding:3rem;max-width:900px}.empty p{max-width:580px;color:var(--muted)}.empty-number{display:block;font-size:3rem;color:#bccbe0;margin-bottom:1rem}.empty.compact{padding:2rem;border:0;border-radius:0}.back{display:inline-block;margin-bottom:1.5rem;font-size:.95rem}.resource-list{list-style:none;padding:0;margin:0}.resource-list li{display:flex;gap:1.2rem;align-items:center;padding:1.4rem 1.5rem;border-bottom:1px solid var(--border)}.resource-list li:last-child{border:0}.resource-list li>a{flex:1;color:var(--ink)}.resource-list .eyebrow{font-size:.8rem;color:var(--muted)}.resource-list h3{margin:.4rem 0}.resource-list p{font-size:.875rem;margin:0;color:var(--muted)}.lesson-number{background:#eaf1fc;padding:.7rem;border-radius:9px;color:var(--blue);font-weight:700}.video{background:#000;aspect-ratio:16/9;overflow:hidden;border-radius:14px;margin-bottom:1.5rem}.video iframe{width:100%;height:100%;border:0}.resource-detail{padding:1.5rem}.preline{white-space:pre-line;overflow-wrap:anywhere}.resource-detail .small{margin-top:1rem}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%;text-align:left}th{font-size:.875rem;color:var(--muted);background:#f9fbfe}th,td{padding:1.1rem 1.4rem;border-bottom:1px solid var(--border);vertical-align:middle}tbody tr:last-child td{border-bottom:0}td{font-size:.94rem}.cell-sub{display:block;color:var(--muted);font-size:.875rem;margin-top:.3rem}.mono{font-family:ui-monospace,monospace;font-size:.8rem;overflow-wrap:anywhere}.editor{margin-top:1.5rem}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1.2rem;margin-bottom:1.5rem}label{display:flex;flex-direction:column;gap:.5rem;font-size:.94rem;font-weight:600}label.wide{grid-column:1/-1}input,textarea,select{width:100%;padding:.7rem .85rem;border:1px solid #acbdd3;border-radius:8px;background:#fff;color:var(--ink);min-height:46px}input:disabled{background:#f0f3f7}textarea{resize:vertical}.hint{font-weight:400}.checkbox{flex-direction:row;align-items:center;align-self:center;gap:.8rem}.checkbox input{width:20px;height:20px;min-height:20px;flex-shrink:0;accent-color:var(--blue)}.stack{margin-top:2rem}.stack>details{margin-bottom:1rem}summary{padding:1.2rem 1.5rem;cursor:pointer;display:flex;gap:1rem;align-items:center;justify-content:space-between;font-weight:650}summary:before{content:'+';color:var(--blue)}summary>span:first-of-type{flex:1}details[open]>summary{border-bottom:1px solid var(--border)}details[open]>summary:before{content:'−'}.login-body{background:white}.login-layout{min-height:100vh;display:grid;grid-template-columns:46% 54%}.login-brand{background:var(--navy);color:white;padding:3rem 4rem;display:flex;flex-direction:column;justify-content:space-between;gap:4rem}.login-brand>div{max-width:480px}.login-brand h1{font-size:clamp(2.5rem,4.5vw,4.5rem);line-height:1.1;margin:1.5rem 0}.login-brand p{color:#c1cee1;font-size:1.1rem}.login-brand .small{font-size:.875rem}.login-brand>.brand{align-self:flex-start}.login-brand>a:last-child{color:#c4d7f4}.login-line{width:70px;height:5px;background:var(--red);margin:2rem 0}.login-side{display:grid;align-items:center;justify-items:center;padding:3rem 2rem}.login-card{max-width:460px;width:100%}.login-card h2{font-size:2rem;margin:1.3rem 0 1rem}.login-card>p{color:var(--muted)}.google-button{width:100%;min-height:58px;margin:1rem 0 1.8rem;padding:.8rem 1rem;display:flex;align-items:center;justify-content:space-between;gap:1rem;background:white;border:1px solid #9cacbf;border-radius:9px;font-weight:650;color:#253650}.google-button:hover:not(:disabled){background:#f2f6fc}.google-letter{font-weight:800;font-size:1.5rem;color:#2566c6}.access-note{background:#f2f5fa;border-left:3px solid var(--blue);padding:1rem 1.2rem;border-radius:0 8px 8px 0}.access-note p{font-size:.94rem;color:var(--muted);margin:.5rem 0 0}.support{display:inline-block;margin-top:1.5rem;font-size:.94rem}.error-page{max-width:780px;margin:10vh auto;padding:2rem}.error-page .eyebrow{margin-bottom:1.5rem;color:var(--blue)}.error-page p{font-size:1.15rem}.skip{position:fixed;top:-100px;left:1rem;padding:.7rem 1rem;background:#fff;z-index:10}.skip:focus{top:1rem}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
@media(max-width:1150px){.course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.sidebar{width:228px;padding:1.5rem 1rem}.workspace{margin-left:228px}.workspace main{padding:2rem}.topbar{padding:1rem 2rem}.login-brand{padding:2.5rem}}
@media(max-width:800px){.sidebar{position:static;width:auto;padding:1rem 1.3rem;gap:1rem}.brand img{width:42px;height:42px}.brand{font-size:1rem}.rail-label,.rail-bottom{display:none}.sidebar nav{display:flex;gap:.5rem;flex-wrap:wrap}.sidebar nav a{margin:0;padding:.6rem .8rem;font-size:.875rem}.sidebar nav a span{display:none}.workspace{margin:0}.topbar{min-height:70px;padding:1rem 1.3rem;flex-wrap:wrap}.workspace main{padding:1.5rem 1.3rem}.workspace footer{padding:1rem 1.3rem}.page-heading{flex-wrap:wrap}.login-layout{grid-template-columns:1fr;min-height:100vh}.login-brand{padding:1.5rem;gap:2rem}.login-brand h1{font-size:2.5rem}.login-brand h1 br{display:none}.login-brand .eyebrow,.login-brand .login-line,.login-brand .small{display:none}.login-brand>div p{font-size:1rem}.login-brand>a:last-child{font-size:.875rem}.login-side{padding:2rem 1.5rem}.login-card{max-width:550px}.form-grid{grid-template-columns:1fr}.form-grid .wide{grid-column:auto}.empty{padding:2rem}.panel-heading{flex-wrap:wrap}.resource-list li{gap:.8rem;padding:1.1rem}.resource-list li>.badge{display:none}}
@media(max-width:500px){.course-grid{grid-template-columns:1fr}.course-card{min-height:225px}.account{justify-content:space-between;width:100%;gap:.5rem}.topbar>.eyebrow{font-size:.8rem}.padded{padding:1.15rem}.actions .button{width:100%}.page-heading h1{overflow-wrap:anywhere}.resource-list .lesson-number{display:none}.resource-list h3{overflow-wrap:anywhere}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* HP Prime: shared, scoped placeholder for both authenticated layouts. */
.hp-prime-page{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(220px,.65fr);align-items:center;gap:clamp(24px,4vw,64px);min-height:520px;padding:clamp(24px,4vw,64px);margin:12px 0;border:1px solid #dce3ff;border-radius:24px;background:radial-gradient(ellipse at top right,#e3d9ff 0,transparent 55%),linear-gradient(135deg,#fff,#edf6ff);box-shadow:0 8px 30px #142e6610;overflow:hidden;color:#101a50}
.hp-prime-copy{min-width:0}.hp-prime-label{font-size:12px;font-weight:800;letter-spacing:.12em;color:#2463d3}.hp-prime-page h1{font-size:clamp(28px,3vw,46px);line-height:1.15;letter-spacing:-.035em;margin:18px 0}.hp-prime-page p{max-width:600px;font-size:16px;line-height:1.7;color:#536282}.hp-prime-page h2{font-size:21px;margin:24px 0 8px}.hp-prime-status{display:inline-flex;align-items:center;gap:8px;padding:10px 16px;margin-top:16px;border:1px solid #d7c8ff;border-radius:30px;background:#f1eaff;color:#6131b9;font-size:14px;font-weight:700}.hp-prime-back{display:inline-flex;align-items:center;gap:12px;margin-top:20px;padding:14px 20px;border-radius:12px;background:linear-gradient(110deg,#006eff,#5330ed);color:#fff!important;text-decoration:none;font-weight:700;box-shadow:0 5px 14px #2255dd26}.hp-prime-back:hover{filter:brightness(1.1)}.hp-prime-back:focus-visible{outline:3px solid #152459;outline-offset:5px}.hp-prime-art{display:flex;flex-direction:column;align-items:center;gap:24px;color:#5472b3}.hp-prime-device{display:flex;flex-direction:column;align-items:center;gap:16px;padding:35px;border:1px solid #b1d4ff;border-radius:32px;background:linear-gradient(140deg,#075ccd,#131d64);color:#e5f4ff;box-shadow:16px 22px 0 #6475ef17,0 18px 35px #233f7533;transform:rotate(6deg)}.hp-prime-device .ui-icon{width:140px;height:170px;stroke-width:1}.hp-prime-device span{font-size:14px;font-weight:800;letter-spacing:.18em}
@media(max-width:800px){.hp-prime-page{grid-template-columns:1fr;min-height:0}.hp-prime-art{display:none}.hp-prime-page h1{overflow-wrap:anywhere}}