:root{
  --navy:#01215f;
  --navy-2:#0a337e;
  --navy-3:#102e68;
  --gold:#eda503;
  --gold-2:#f6c44f;
  --cream:#fff9eb;
  --paper:#fffdf7;
  --ink:#14213d;
  --muted:#6f7a91;
  --line:#e7e9ef;
  --soft:#f4f6fb;
  --soft-blue:#eef4ff;
  --green:#1f9d69;
  --green-bg:#e9f8f1;
  --blue:#3c72d9;
  --blue-bg:#ebf2ff;
  --orange:#e88119;
  --orange-bg:#fff1df;
  --red:#d85555;
  --red-bg:#feeeee;
  --shadow:0 18px 45px rgba(1,33,95,.10);
  --radius:18px;
  --radius-sm:12px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#f7f8fb;color:var(--ink);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.5}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
a{color:inherit;text-decoration:none}
img{max-width:100%}
#app{min-height:100vh}

/* shared */
.brand{display:flex;align-items:center;gap:10px;font-weight:850;color:var(--navy);letter-spacing:-.02em}
.brand img{width:42px;height:42px;object-fit:contain;border-radius:50%}
.brand .product{display:flex;flex-direction:column;line-height:1.04}
.brand .product strong{font-size:15px}
.brand .product span{font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);font-weight:800;margin-top:4px}
.container{width:min(1180px,calc(100% - 40px));margin:0 auto}
.eyebrow{font-size:12px;letter-spacing:.15em;text-transform:uppercase;font-weight:850;color:var(--gold);margin-bottom:10px}
.display{font-family:Georgia,"Times New Roman",serif;letter-spacing:-.045em;color:var(--navy);line-height:1.02}
.btn{border:0;border-radius:12px;padding:12px 17px;font-weight:800;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:.18s ease;white-space:nowrap}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--navy);color:#fff;box-shadow:0 10px 24px rgba(1,33,95,.22)}
.btn-primary:hover{background:var(--navy-2)}
.btn-gold{background:var(--gold);color:var(--navy)}
.btn-light{background:#fff;color:var(--navy);border:1px solid var(--line)}
.btn-ghost{background:transparent;color:var(--navy);border:1px solid #ccd5e6}
.btn-small{padding:9px 12px;font-size:13px}
.badge{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:6px 9px;font-size:11px;font-weight:800;background:var(--soft);color:var(--muted)}
.badge.green{background:var(--green-bg);color:var(--green)}
.badge.blue{background:var(--blue-bg);color:var(--blue)}
.badge.orange{background:var(--orange-bg);color:var(--orange)}
.badge.gold{background:#fff4cf;color:#a66c00}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 10px 30px rgba(24,38,73,.04)}
.card-pad{padding:22px}
.muted{color:var(--muted)}
.small{font-size:12px}
.kicker{font-size:13px;text-transform:uppercase;letter-spacing:.11em;font-weight:850;color:var(--muted)}
.section-title{font-size:23px;color:var(--navy);margin:0 0 6px;letter-spacing:-.025em}
.section-subtitle{margin:0;color:var(--muted);font-size:14px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.stack{display:flex;flex-direction:column;gap:16px}
.row{display:flex;align-items:center;gap:12px}
.row-between{display:flex;align-items:center;justify-content:space-between;gap:16px}
.divider{height:1px;background:var(--line);margin:18px 0}

/* marketing */
.marketing{background:var(--paper);min-height:100vh}
.public-nav{height:76px;background:rgba(255,253,247,.94);backdrop-filter:blur(16px);position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(1,33,95,.08)}
.public-nav .container{height:100%;display:flex;align-items:center;justify-content:space-between}
.public-links{display:flex;align-items:center;gap:26px;font-size:13px;font-weight:750;color:#4f5d77}
.hero{padding:78px 0 68px;position:relative;overflow:hidden;background:radial-gradient(circle at 86% 12%,rgba(237,165,3,.17),transparent 25%),linear-gradient(180deg,#fffdf7 0%,#fff8e7 100%)}
.hero:before{content:"";position:absolute;width:520px;height:520px;border:1px solid rgba(1,33,95,.06);border-radius:50%;right:-210px;top:-180px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}
.hero h1{font-size:60px;margin:0 0 22px;max-width:720px}
.hero p{font-size:19px;color:#526078;max-width:650px;margin:0 0 28px}
.hero-cta{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.hero-note{margin-top:20px;font-weight:750;color:var(--navy);font-size:13px}
.hero-art{position:relative;height:440px}
.book{position:absolute;left:24px;bottom:50px;width:320px;height:205px;background:#fff;border-radius:18px 18px 44px 18px;box-shadow:var(--shadow);transform:rotate(-3deg);border:1px solid rgba(1,33,95,.08);overflow:hidden}
.book:before{content:"";position:absolute;left:50%;top:0;bottom:0;width:2px;background:#e8e7e2}
.book-page{position:absolute;inset:24px 34px;color:var(--navy);font-family:Georgia,serif}
.book-page h3{margin:0 0 16px;font-size:27px}.book-page div{height:8px;border-radius:8px;background:#dbe4f4;margin:9px 0;width:42%}.book-page div:nth-child(2n){width:36%}
.path{position:absolute;left:265px;bottom:166px;width:230px;height:165px;border-left:12px solid var(--gold);border-top:12px solid var(--gold);border-radius:90px 0 0 0;transform:rotate(-12deg)}
.path:after{content:"✓";position:absolute;right:-22px;top:-33px;width:62px;height:62px;background:var(--navy);color:#fff;border-radius:50%;display:grid;place-items:center;font-size:29px;font-weight:900;box-shadow:var(--shadow)}
.kid-bubbles{position:absolute;right:12px;top:55px;display:grid;grid-template-columns:repeat(2,90px);gap:16px}
.kid{width:90px;height:90px;background:#fff;border-radius:28px;box-shadow:var(--shadow);display:grid;place-items:center;font-size:34px;border:1px solid rgba(1,33,95,.06)}
.hero-caption{position:absolute;right:18px;bottom:32px;background:var(--navy);color:#fff;border-radius:16px;padding:16px 18px;width:255px;box-shadow:var(--shadow)}
.hero-caption b{color:var(--gold)}
.marketing-section{padding:76px 0}
.marketing-section.white{background:#fff}
.transform-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:28px}
.transform-row{display:grid;grid-template-columns:1fr 60px 1fr;align-items:center;padding:14px 16px;border-radius:14px;background:#fff;border:1px solid var(--line);font-weight:700}
.transform-row .arrow{text-align:center;color:var(--gold);font-size:19px}
.steps{display:grid;grid-template-columns:repeat(7,1fr);gap:10px;margin-top:30px}
.step{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 12px;text-align:center;position:relative}
.step .n{width:34px;height:34px;border-radius:50%;background:var(--navy);color:#fff;display:grid;place-items:center;margin:0 auto 10px;font-weight:850}.step b{font-size:13px;color:var(--navy)}
.value-card{padding:24px;border-radius:18px;background:linear-gradient(180deg,#fff,#fbfcff);border:1px solid var(--line)}
.value-card h3{color:var(--navy);margin:12px 0 7px}.value-card .iconbubble{width:46px;height:46px;border-radius:14px;background:#fff1c7;display:grid;place-items:center;font-size:22px}
.cta-band{background:var(--navy);color:#fff;padding:50px;border-radius:28px;display:flex;align-items:center;justify-content:space-between;gap:24px}.cta-band h2{font-family:Georgia,serif;font-size:38px;line-height:1.08;margin:0;max-width:680px}.cta-band p{color:#cfd9ee;margin:10px 0 0}

/* login */
.login-page{min-height:100vh;display:grid;grid-template-columns:.9fr 1.1fr;background:#fff}
.login-side{background:linear-gradient(145deg,var(--navy),#0b3a8e);color:#fff;padding:58px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}
.login-side:before,.login-side:after{content:"";position:absolute;border-radius:50%;border:1px solid rgba(255,255,255,.12)}
.login-side:before{width:460px;height:460px;left:-220px;bottom:-180px}.login-side:after{width:360px;height:360px;right:-150px;top:-110px}
.login-side .brand{color:#fff}.login-side .brand span{color:#b9c8e5}
.login-copy{position:relative;z-index:1}.login-copy h1{font-family:Georgia,serif;font-size:50px;line-height:1.03;margin:0 0 18px}.login-copy p{color:#d4dff0;font-size:17px;max-width:520px}.login-path{display:flex;gap:8px;flex-wrap:wrap;margin-top:30px}.login-path span{border:1px solid rgba(255,255,255,.16);padding:8px 11px;border-radius:999px;color:#fff;font-size:12px;font-weight:750}
.login-main{padding:58px;display:flex;align-items:center;justify-content:center;background:#fbfcff}.login-box{width:min(620px,100%)}.login-box h2{font-size:31px;color:var(--navy);margin:0 0 7px}.role-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:26px}.role-card{padding:19px;border-radius:16px;border:1px solid var(--line);background:#fff;text-align:left;transition:.18s;display:flex;gap:14px}.role-card:hover{border-color:#b7c6df;box-shadow:0 12px 25px rgba(1,33,95,.08);transform:translateY(-1px)}.role-icon{width:44px;height:44px;border-radius:13px;background:var(--soft-blue);color:var(--navy);display:grid;place-items:center;font-weight:900}.role-card b{display:block;color:var(--navy);margin-bottom:3px}.role-card small{color:var(--muted);line-height:1.35;display:block}
.demo-hint{margin-top:22px;background:var(--cream);border:1px solid #f5e5b3;border-radius:14px;padding:13px 15px;color:#6b5b30;font-size:13px}

/* application shell */
.app-shell{min-height:100vh;display:grid;grid-template-columns:272px 1fr;background:#f7f8fb}
.app-shell.sidebar-collapsed{grid-template-columns:76px 1fr}
.sidebar{background:var(--navy);color:#fff;padding:20px 14px;position:sticky;top:0;height:100vh;overflow:auto}.sidebar .brand{color:#fff;padding:2px 8px 20px;border-bottom:1px solid rgba(255,255,255,.10);margin-bottom:16px}.sidebar .brand img{background:#fff}.sidebar .brand span{color:#9fb2d5}.role-pill{display:flex;align-items:center;justify-content:space-between;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.08);padding:11px 12px;border-radius:12px;margin:0 4px 22px}.role-pill b{font-size:13px}.role-pill span{font-size:10px;color:#aebedf}.nav-group{margin:0 0 22px}.nav-label{display:flex;align-items:center;gap:9px;font-size:11px;text-transform:uppercase;letter-spacing:.1em;color:#a9bbd9;font-weight:800;padding:0 12px;margin-bottom:8px}.nav-label:after{content:"";height:1px;background:rgba(255,255,255,.11);flex:1}.nav-item{display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:10px;color:#d4deed;font-size:14px;font-weight:700;margin:3px 0;border:0;width:100%;background:transparent;text-align:left}.nav-item:hover{background:rgba(255,255,255,.08);color:#fff}.nav-item.active{background:#fff;color:var(--navy);box-shadow:0 7px 16px rgba(0,0,0,.15)}.nav-dot{width:8px;height:8px;border:2px solid currentColor;border-radius:50%;opacity:.9;flex:0 0 auto}.nav-text{flex:1}.nav-tag{font-size:9px;text-transform:uppercase;letter-spacing:.06em;padding:3px 5px;border-radius:5px;background:rgba(255,255,255,.1);color:#b7c5dd}.nav-item.active .nav-tag{background:var(--cream);color:#8b6500}.sidebar-bottom{margin-top:24px;border-top:1px solid rgba(255,255,255,.11);padding-top:14px}
.sidebar-collapsed .sidebar{padding-inline:10px;overflow:hidden}.sidebar-collapsed .sidebar .brand{justify-content:center;padding-inline:0}.sidebar-collapsed .sidebar .brand img{width:38px;height:38px}.sidebar-collapsed .sidebar .product,.sidebar-collapsed .role-pill,.sidebar-collapsed .nav-label,.sidebar-collapsed .nav-text,.sidebar-collapsed .nav-tag{display:none}.sidebar-collapsed .nav-group{margin-bottom:14px}.sidebar-collapsed .nav-item{justify-content:center;padding:12px}.sidebar-collapsed .sidebar-bottom{margin-top:16px}
.main{min-width:0}.topbar{height:70px;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 28px;position:sticky;top:0;z-index:16}.topbar-leading{display:flex;align-items:center;gap:14px;min-width:0}.sidebar-toggle,.mobile-menu-toggle{width:36px;height:36px;place-items:center;border:1px solid var(--line);background:#fff;color:var(--navy);border-radius:10px;padding:0;font-size:12px;font-weight:800;flex:0 0 auto}.sidebar-toggle{display:inline-grid}.mobile-menu-toggle{display:none}.sidebar-toggle:hover,.mobile-menu-toggle:hover{background:var(--soft)}.mobile-nav-backdrop,.mobile-drawer-head{display:none}.desktop-sidebar-brand{display:block}.breadcrumbs{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:6px;min-width:0;white-space:nowrap}.breadcrumb-link{border:0;background:transparent;padding:2px 0;color:var(--muted);font:inherit;cursor:pointer}.breadcrumb-link:hover{color:var(--navy);text-decoration:underline}.breadcrumbs b{color:var(--ink);overflow:hidden;text-overflow:ellipsis}.top-actions{display:flex;align-items:center;gap:12px}.searchbox{background:var(--soft);border:1px solid var(--line);border-radius:10px;padding:9px 12px;font-size:12px;color:var(--muted);min-width:220px}.avatar{width:36px;height:36px;border-radius:11px;background:var(--navy);color:#fff;display:grid;place-items:center;font-size:12px;font-weight:900}.content{padding:28px}.page-head{display:flex;justify-content:space-between;gap:20px;align-items:flex-start;margin-bottom:22px}.page-head h1{margin:0;color:var(--navy);font-size:30px;letter-spacing:-.035em}.page-head p{margin:6px 0 0;color:var(--muted);font-size:14px;max-width:720px}

/* dashboards */
.metric{padding:18px}.metric .label{font-size:11px;text-transform:uppercase;letter-spacing:.09em;color:var(--muted);font-weight:800}.metric .value{font-size:30px;color:var(--navy);font-weight:900;letter-spacing:-.04em;margin:7px 0 3px}.metric .delta{font-size:11px;color:var(--green);font-weight:750}.metric.goldline{border-top:4px solid var(--gold)}
.chart{height:220px;display:flex;align-items:end;gap:12px;padding-top:22px}.bar{flex:1;border-radius:9px 9px 3px 3px;background:linear-gradient(180deg,#3e71d2,var(--navy));position:relative;min-width:20px}.bar span{position:absolute;bottom:-25px;width:100%;text-align:center;font-size:10px;color:var(--muted)}.bar.goldbar{background:linear-gradient(180deg,var(--gold-2),var(--gold))}
.progress{height:8px;background:#edf0f4;border-radius:999px;overflow:hidden}.progress>div{height:100%;background:var(--navy);border-radius:999px}.progress.gold>div{background:var(--gold)}.progress.green>div{background:var(--green)}
.funnel{display:flex;align-items:center;gap:10px;overflow:auto;padding:12px 0}.funnel-step{min-width:125px;background:var(--soft);border-radius:13px;padding:14px}.funnel-step b{display:block;color:var(--navy);font-size:20px}.funnel-step small{color:var(--muted)}.funnel-arrow{color:#aeb8c8;font-size:20px}
.table-wrap{overflow:auto}.table{width:100%;border-collapse:collapse;font-size:13px}.table th{text-align:left;font-size:10px;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);font-weight:850;padding:11px 12px;border-bottom:1px solid var(--line)}.table td{padding:13px 12px;border-bottom:1px solid #eff1f5;vertical-align:middle}.table tr:hover td{background:#fbfcff}.namecell b{display:block;color:var(--navy)}.namecell small{color:var(--muted)}
.action-list{display:flex;flex-direction:column;gap:10px}.action-item{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:14px;border:1px solid var(--line);border-radius:13px}.action-item .num{width:30px;height:30px;border-radius:9px;background:var(--cream);color:#946500;display:grid;place-items:center;font-weight:900;flex:0 0 auto}.action-item .body{flex:1}.action-item .body b{color:var(--navy);display:block}.action-item .body small{color:var(--muted)}

/* teacher journey */
.journey{display:flex;align-items:center;gap:6px;overflow:auto;padding-bottom:3px}.journey-step{display:flex;align-items:center;gap:7px;white-space:nowrap;font-size:11px;font-weight:800;color:#98a2b4;border:0;background:transparent;padding:0;cursor:pointer}.journey-step:hover{color:var(--navy)}.journey-step:disabled{cursor:default;opacity:1}.journey-step .circle{width:27px;height:27px;border-radius:50%;border:2px solid #d6dce7;display:grid;place-items:center;font-size:10px}.journey-step.done{color:var(--green)}.journey-step.done .circle{background:var(--green);border-color:var(--green);color:#fff}.journey-step.active{color:var(--navy)}.journey-step.active .circle{background:var(--gold);border-color:var(--gold);color:var(--navy)}.journey-line{height:2px;width:22px;background:#dfe4ed;flex:0 0 auto}.journey-context{padding:14px 18px;margin-bottom:20px}.journey-context .context-label,.workspace-journey .context-label{font-size:10px;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);font-weight:850;margin-bottom:10px}.challenge-summary .journey,.workspace-journey .journey{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:8px;overflow:visible}.challenge-summary .journey-line,.workspace-journey .journey-line{display:none}.challenge-summary .journey-step,.workspace-journey .journey-step{justify-content:center;padding:10px 8px;border:1px solid var(--line);border-radius:11px;background:var(--soft)}
.challenge-hero{background:linear-gradient(120deg,var(--navy),#0c448f);color:#fff;border-radius:24px;padding:26px;display:grid;grid-template-columns:1fr auto;gap:22px;align-items:center;box-shadow:var(--shadow)}.challenge-hero>div{min-width:0}.challenge-hero h2{margin:5px 0 5px;font-size:30px}.challenge-hero p{margin:0;color:#c9d8ef}.challenge-hero .journey-step{color:#afc1df}.challenge-hero .journey-step:hover,.challenge-hero .journey-step.active{color:#fff}.challenge-hero .journey-step.done{color:#80dbbc}.challenge-hero .journey-line{background:rgba(255,255,255,.22)}.challenge-ring{width:116px;height:116px;border-radius:50%;background:conic-gradient(var(--gold) 63%,rgba(255,255,255,.15) 0);display:grid;place-items:center}.challenge-ring:after{content:"63%";width:84px;height:84px;border-radius:50%;background:var(--navy);display:grid;place-items:center;font-size:22px;font-weight:900;color:#fff}
.back-link{border:0;background:transparent;color:var(--navy);font-size:12px;font-weight:800;padding:0;margin:0 0 14px;cursor:pointer}.challenge-workspace-head{overflow:hidden;margin-bottom:24px;border-radius:17px;box-shadow:none}.workspace-title{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;padding:28px 32px 25px}.workspace-title .kicker{color:#66728b;font-size:12px}.workspace-title h1{font-family:inherit;font-size:44px;line-height:1.05;letter-spacing:-.012em;color:var(--navy);margin:9px 0 7px}.workspace-title p{color:var(--muted);margin:0;font-size:15px}.workspace-status{text-align:right;display:flex;flex-direction:column;align-items:flex-end;gap:12px;color:var(--navy);font-size:13px;padding-top:2px}.workspace-status .badge{padding:9px 13px}.workspace-stage-track{display:grid;grid-template-columns:repeat(5,1fr);padding:4px 38px 28px}.stage-item{position:relative;text-align:center}.stage-item:before{content:"";position:absolute;top:21px;left:-50%;width:100%;height:2px;background:#d7dce6}.stage-item:first-child:before{display:none}.stage-item.done:before,.stage-item.active:before{background:var(--green)}.stage-item button{position:relative;z-index:1;border:0;background:transparent;color:#111827;font-size:12px;font-weight:700;padding:0;display:inline-flex;flex-direction:column;align-items:center;gap:8px}.stage-item button:disabled{opacity:1;cursor:default}.stage-circle{width:44px;height:44px;border-radius:50%;border:1.5px solid #bdc6d6;background:#fff;color:#7f8ba1;display:grid;place-items:center;font-size:18px}.stage-item.done .stage-circle{border-color:#22b573;color:#16a366}.stage-item.active .stage-circle{border-color:var(--navy);background:var(--navy);color:#fff;box-shadow:0 5px 14px rgba(1,33,95,.2)}.stage-item.active button{color:var(--navy)}.challenge-tabs{display:flex;gap:30px;padding:0 24px;border-top:1px solid var(--line);overflow-x:auto}.challenge-tab{border:0;background:transparent;padding:17px 3px 15px;color:#6a758b;font-size:12px;font-weight:550;border-bottom:3px solid transparent;display:flex;align-items:center;gap:7px;white-space:nowrap}.challenge-tab:hover{color:var(--navy)}.challenge-tab.active{color:var(--navy);border-bottom-color:var(--navy);font-weight:600}.tab-icon{font-size:17px;line-height:1}.challenge-subtabs{display:flex;flex-wrap:wrap;gap:7px;padding:12px 20px;background:#fff;border-top:1px solid var(--line)}.challenge-subtab{border:1px solid var(--line);background:#fff;color:var(--muted);border-radius:11px;padding:9px 15px;font-size:11px;font-weight:800}.challenge-subtab:hover{background:#f7f9fc;color:var(--navy)}.challenge-subtab.active{background:var(--navy);color:#fff;border-color:var(--navy);box-shadow:none}.workspace-content{padding:0 8px}.workspace-content .page-head{align-items:center;margin-bottom:20px}.workspace-content .page-head h1{font-size:28px}.workspace-content .page-head .btn-light{border-color:#4f79d3}.workspace-crumb{font-size:11px;color:var(--muted);margin-bottom:16px}.challenge-list-card{padding:20px;display:flex;align-items:center;justify-content:space-between;gap:22px}.challenge-list-card.active-challenge{border-left:5px solid var(--gold)}.challenge-list-main{display:flex;align-items:center;gap:18px;min-width:0}.challenge-list-main h2{margin:7px 0 3px;color:var(--navy)}.challenge-list-main p,.challenge-list-main small{color:var(--muted)}.challenge-book{width:88px;height:104px;border-radius:13px;background:linear-gradient(145deg,var(--navy),#285ab0);color:#fff;padding:12px;display:flex;align-items:flex-end;font-family:Georgia,serif;font-weight:800;flex:0 0 auto}.challenge-book.complete-cover{background:linear-gradient(145deg,#177354,#54ad8d)}.challenge-book.muted-cover{background:linear-gradient(145deg,#59677f,#9ba8bb)}.challenge-card-action{display:flex;flex-direction:column;align-items:flex-end;gap:9px;flex:0 0 auto}.assignment-card{display:flex;justify-content:space-between;align-items:center;gap:18px}.assignment-card h2{color:var(--navy);margin:6px 0}.assignment-card p{margin:0}.chapter-choice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.chapter-choice{display:grid;grid-template-columns:110px 1fr;text-align:left;border:2px solid transparent;border-radius:17px;background:#fff;padding:0;overflow:hidden;box-shadow:var(--shadow);color:var(--ink)}.chapter-choice:not(:disabled){cursor:pointer}.chapter-choice:not(:disabled):hover,.chapter-choice.selected{border-color:var(--gold);transform:translateY(-1px)}.chapter-choice.unavailable{opacity:.62}.chapter-choice-cover{background:linear-gradient(145deg,var(--navy),#285ab0);color:#fff;padding:14px;display:flex;align-items:flex-end;font-family:Georgia,serif;font-weight:800}.chapter-choice-body{padding:17px}.chapter-choice-body h3{color:var(--navy);margin:8px 0 4px}.chapter-choice-body p{color:var(--muted);font-size:12px;min-height:34px}.chapter-choice-body small{color:var(--blue);font-weight:800}.choice-footer{position:sticky;bottom:12px;margin-top:18px;padding:16px 18px;display:flex;align-items:center;justify-content:space-between;gap:18px;z-index:10}.choice-footer p{margin:3px 0 0;color:var(--muted);font-size:12px}.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}
.workspace-progress{padding:15px 24px 17px;background:var(--soft);border-top:1px solid var(--line)}.progress-copy{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:10px;color:var(--navy)}.progress-copy b{display:block;margin-top:3px}.progress-copy>span{font-size:12px;font-weight:850}.progress-milestones{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:9px;font-size:10px;font-weight:800;color:#9aa5b8}.progress-milestones span{text-align:center}.progress-milestones .done{color:var(--green)}.progress-milestones .active{color:var(--navy)}
.task-card{padding:20px;border-radius:18px;background:#fff;border:1px solid var(--line)}.task-card h3{margin:0 0 7px;color:var(--navy)}
.chapter-card{padding:17px;border:1px solid var(--line);border-radius:15px;background:#fff;display:flex;gap:14px;align-items:center;transition:.15s}.chapter-card:hover{border-color:#b5c3da;box-shadow:0 8px 20px rgba(1,33,95,.06)}.chapter-thumb{width:70px;height:82px;border-radius:10px;background:linear-gradient(145deg,var(--navy),#214f9f);color:#fff;padding:12px;display:flex;align-items:flex-end;font-family:Georgia,serif;font-weight:800}.chapter-card .body{flex:1}.chapter-card .body b{color:var(--navy);display:block;font-size:15px}.chapter-card .body small{color:var(--muted)}

/* chapter flipbook */
.reader-shell{width:100%}.flipbook-panel{width:100%;overflow:hidden;background:#fff}.flipbook-meta{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:18px 20px;border-bottom:1px solid var(--line)}.flipbook-meta h2{color:var(--navy);margin:4px 0 3px}.flipbook-meta p{color:var(--muted);font-size:12px;margin:0}.flipbook-frame{min-height:660px;background:#31394a;position:relative}.chapter-flipbook,.chapter-flipbook .df-container{height:660px!important;min-height:660px}.chapter-flipbook .df-container{margin:0}.flipbook-fallback{min-height:660px;padding:40px;place-content:center;text-align:center;color:#fff}.flipbook-fallback:not([hidden]){display:grid}.flipbook-fallback p{color:#d5dcea}.flipbook-credit{padding:9px 16px;margin:0;text-align:right;color:var(--muted);font-size:10px}.flipbook-credit a{color:var(--blue)}.guide-box{background:#fff;border:1px solid var(--line);border-radius:16px;padding:17px}.guide-box .tag{font-size:10px;text-transform:uppercase;letter-spacing:.12em;color:var(--gold);font-weight:900}.guide-box b{display:block;color:var(--navy);margin:6px 0}.resource-row{display:flex;flex-wrap:wrap;gap:8px}.resource-chip{border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px 10px;font-size:11px;font-weight:750;color:var(--navy)}

/* evidence */
.evidence-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.evidence-card{border-radius:15px;overflow:hidden;background:#fff;border:1px solid var(--line)}.evidence-img{height:150px;display:flex;align-items:flex-end;padding:14px;color:#fff;font-weight:800;position:relative;background:linear-gradient(135deg,#305aa8,#8db2ef)}.evidence-img.goldimg{background:linear-gradient(135deg,#d99600,#ffd56a)}.evidence-img.greenimg{background:linear-gradient(135deg,#177354,#70c8a8)}.evidence-people{position:absolute;inset:20px;display:flex;gap:10px;align-items:end}.person{width:35px;height:55px;border-radius:18px 18px 10px 10px;background:rgba(255,255,255,.82);position:relative}.person:before{content:"";width:27px;height:27px;border-radius:50%;background:rgba(255,255,255,.96);position:absolute;left:4px;top:-18px}.evidence-meta{padding:13px}.evidence-meta b{display:block;color:var(--navy)}.evidence-meta small{color:var(--muted)}.evidence-actions{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:16px}.evidence-actions>button{display:flex;align-items:center;gap:12px;border:1px solid var(--line);background:var(--soft);border-radius:13px;padding:13px;text-align:left;color:var(--navy)}.evidence-actions>button:hover{border-color:#b7c6df;background:#fff}.evidence-actions b,.evidence-actions small{display:block}.evidence-actions small{color:var(--muted);font-size:10px;margin-top:3px}.evidence-action-icon{width:36px;height:36px;border-radius:10px;background:#fff;color:var(--navy);display:grid;place-items:center;font-size:16px;flex:0 0 auto}

/* class check */
.learning-point{display:grid;grid-template-columns:1fr 240px 100px;gap:16px;align-items:center;padding:14px;border-bottom:1px solid #edf0f4}.learning-point:last-child{border-bottom:0}.learning-point b{color:var(--navy)}.percent-pills{display:flex;gap:6px}.percent-pill{border:1px solid var(--line);background:#fff;border-radius:9px;padding:7px 8px;font-size:11px;font-weight:800;color:var(--muted)}.percent-pill.selected{border-color:var(--navy);background:var(--navy);color:#fff}.signal{height:10px;border-radius:999px;background:#edf0f5;overflow:hidden}.signal div{height:100%;border-radius:999px}.signal.green div{background:var(--green)}.signal.blue div{background:var(--blue)}.signal.orange div{background:var(--orange)}
.diagnostic-card{padding:18px;border-radius:16px;border:1px solid var(--line);background:#fff}.diagnostic-card .signal-title{display:flex;justify-content:space-between;align-items:center}.diagnostic-card h3{margin:8px 0 4px;color:var(--navy)}.diagnostic-card p{margin:0;color:var(--muted);font-size:13px}
.fix-card{display:grid;grid-template-columns:62px 1fr auto;gap:15px;align-items:start;padding:18px;border:1px solid var(--line);border-radius:15px;background:#fff}.fix-index{width:48px;height:48px;border-radius:14px;background:var(--orange-bg);color:var(--orange);display:grid;place-items:center;font-weight:900}.fix-card h3{margin:0 0 4px;color:var(--navy)}.fix-card p{margin:0;color:var(--muted);font-size:13px}.fix-card.completed .fix-index{background:var(--green-bg);color:var(--green)}

/* question generator */
.generator-layout{display:grid;grid-template-columns:360px 1fr;gap:18px}.control-card{padding:20px;background:#fff;border:1px solid var(--line);border-radius:17px}.field{margin-bottom:15px}.field label{display:block;font-size:11px;font-weight:850;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:7px}.field input,.field select,.field textarea{width:100%;border:1px solid #dbe0e9;border-radius:10px;padding:10px 11px;background:#fff;color:var(--ink);outline:none}.field textarea{min-height:85px;resize:vertical}.toggle-row{display:flex;gap:8px;flex-wrap:wrap}.toggle{padding:8px 10px;border-radius:9px;border:1px solid var(--line);background:#fff;font-size:11px;font-weight:800;color:var(--muted)}.toggle.on{background:var(--navy);color:#fff;border-color:var(--navy)}.question{padding:16px;border-bottom:1px solid #edf0f4}.question:last-child{border-bottom:0}.question b{color:var(--navy)}.option{margin-top:8px;display:inline-block;margin-right:8px;padding:6px 9px;border-radius:8px;background:var(--soft);font-size:11px}

/* paper / assessment */
.assessment-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.paper-card{border:1px solid #dfe4ed;border-radius:15px;padding:20px;background:#fff}.paper-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:20px}.paper-heading h2{font-size:22px;color:var(--navy);margin:9px 0 3px;letter-spacing:-.02em}.paper-heading p{font-size:13px;color:var(--muted);margin:0}.paper-heading>strong{font-size:26px;color:var(--navy)}.paper-preview{height:168px;border-radius:10px;background:#fff;border:1px solid #dce2eb;padding:17px 20px;position:relative;overflow:hidden;margin-top:17px}.paper-preview h3{font-family:Georgia,serif;text-align:center;color:var(--navy);font-size:15px;margin:0 0 9px}.paper-visual{display:grid;grid-template-columns:1fr 85px;gap:17px;align-items:center}.paper-line{height:5px;background:#d9dde4;border-radius:10px;margin:8px 0}.paper-line.short{width:65%}.fraction-pie{width:72px;height:72px;border:1px solid #b7c0cf;border-radius:50%;background:conic-gradient(#aebedb 0 33%,#fff 33% 100%);position:relative}.fraction-pie:after{content:"";position:absolute;inset:50% 0 0 50%;border-left:1px solid #73809a;border-top:1px solid #73809a}.fraction-grid{width:82px;height:54px;display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(2,1fr);border:1px solid #8592a8}.fraction-grid span{border-right:1px solid #aab3c3;border-bottom:1px solid #aab3c3}.fraction-grid span:nth-child(4n){border-right:0}.fraction-grid span:nth-child(n+5){border-bottom:0}.fraction-grid .filled{background:#afbed9}.paper-footer{position:absolute;bottom:12px;left:20px;right:20px;display:flex;justify-content:space-between;color:#8f96a4;font-size:9px}.paper-actions{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:13px}.paper-actions .btn{padding:10px;font-size:11px}.paper-actions .btn span{font-size:16px}.after-test{margin-top:22px;padding:20px 24px;display:grid;grid-template-columns:54px 1fr auto;gap:18px;align-items:center;border-color:#cfe0fa;background:linear-gradient(100deg,#f2f7ff,#fff);box-shadow:none}.after-test-icon{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;background:#dfeaff;color:var(--navy);font-size:23px}.after-test h2{font-size:18px;color:var(--navy);margin:0 0 4px}.after-test p{font-size:13px;color:var(--muted);margin:0}
.upload-zone{border:2px dashed #cfd6e2;border-radius:16px;padding:26px;text-align:center;background:#fbfcff}.upload-zone b{display:block;color:var(--navy);margin-bottom:5px}.upload-zone small{color:var(--muted)}

/* reflection/report */
.scale{display:flex;gap:8px}.scale button{width:40px;height:40px;border-radius:11px;border:1px solid var(--line);background:#fff;font-weight:850;color:var(--muted)}.scale button.selected{background:var(--gold);color:var(--navy);border-color:var(--gold)}
.report-comparison{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:18px}.report-performance{padding:16px;border:1px solid var(--line);border-radius:14px;background:var(--soft)}.report-performance b,.report-performance small{display:block}.report-performance b{color:var(--navy)}.report-performance small{color:var(--muted);font-size:11px;margin-top:3px}.report-performance strong{font-size:22px;color:var(--navy)}.report-performance .progress{margin-top:12px}.report-list-heading{margin-bottom:12px}.report-list-card .challenge-book{font-size:14px}
.story{background:linear-gradient(145deg,#fffdf7,#f7fbff);padding:30px;border-radius:22px;border:1px solid var(--line)}.story-header{display:flex;align-items:center;justify-content:space-between;gap:20px}.story h2{font-family:Georgia,serif;color:var(--navy);font-size:32px;margin:0}.story-timeline{display:grid;grid-template-columns:repeat(7,1fr);gap:9px;margin:24px 0}.story-step{padding:14px 10px;border-radius:13px;background:#fff;border:1px solid var(--line);text-align:center}.story-step .check{width:28px;height:28px;border-radius:50%;background:var(--green-bg);color:var(--green);display:grid;place-items:center;margin:0 auto 7px;font-weight:900}.story-step b{font-size:11px;color:var(--navy)}

/* modal/toast */
.toast{position:fixed;right:24px;bottom:24px;background:#14213d;color:#fff;padding:12px 16px;border-radius:12px;box-shadow:0 16px 38px rgba(0,0,0,.2);font-size:13px;font-weight:700;opacity:0;transform:translateY(10px);pointer-events:none;transition:.2s;z-index:100}.toast.show{opacity:1;transform:none}.modal-overlay{position:fixed;inset:0;background:rgba(4,16,43,.48);display:grid;place-items:center;padding:20px;z-index:80}.modal{width:min(560px,100%);background:#fff;border-radius:20px;box-shadow:0 24px 80px rgba(0,0,0,.25);padding:24px}.modal h2{margin:0;color:var(--navy)}.modal p{color:var(--muted);font-size:13px}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}

/* responsive */
@media(max-width:1050px){.grid-4{grid-template-columns:repeat(2,1fr)}.hero-grid{grid-template-columns:1fr}.hero-art{height:380px}.steps{grid-template-columns:repeat(4,1fr)}.app-shell{grid-template-columns:220px 1fr}.reader-shell,.generator-layout{grid-template-columns:1fr}.learning-point{grid-template-columns:1fr}.evidence-grid{grid-template-columns:repeat(2,1fr)}.story-timeline{grid-template-columns:repeat(4,1fr)}.challenge-summary .journey,.workspace-journey .journey{grid-template-columns:repeat(4,minmax(0,1fr))}.chapter-choice-grid{grid-template-columns:1fr}.evidence-actions{grid-template-columns:1fr}.assessment-grid{grid-template-columns:1fr}.workspace-stage-track{padding-inline:22px}.challenge-tabs{gap:10px;padding-inline:18px}}
@media(max-width:760px){.container{width:min(100% - 24px,1180px)}.public-links{display:none}.hero{padding-top:46px}.hero h1{font-size:42px}.hero-art{height:320px;transform:scale(.86);transform-origin:left top}.transform-grid,.grid-2,.grid-3,.grid-4,.report-comparison{grid-template-columns:1fr}.steps{grid-template-columns:repeat(2,1fr)}.cta-band{padding:30px;align-items:flex-start;flex-direction:column}.login-page{grid-template-columns:1fr}.login-side{min-height:360px;padding:34px}.login-main{padding:30px 20px}.role-grid{grid-template-columns:1fr}.app-shell,.app-shell.sidebar-collapsed{display:block}.sidebar,.sidebar-collapsed .sidebar{display:block;position:fixed;inset:0 auto 0 0;width:min(300px,86vw);height:100vh;z-index:41;transform:translateX(-105%);transition:transform .22s ease;padding:18px 14px;overflow:auto;box-shadow:18px 0 45px rgba(1,18,51,.25)}.mobile-nav-open .sidebar{transform:translateX(0)}.mobile-nav-backdrop{display:block;position:fixed;inset:0;z-index:40;border:0;background:rgba(4,16,43,.48);opacity:0;pointer-events:none;transition:opacity .22s ease}.mobile-nav-open .mobile-nav-backdrop{opacity:1;pointer-events:auto}.desktop-sidebar-brand{display:none}.mobile-drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}.mobile-drawer-head .brand{flex:1;margin:0;padding:2px 4px 16px}.mobile-drawer-close{width:36px;height:36px;border:1px solid rgba(255,255,255,.18);border-radius:10px;background:rgba(255,255,255,.08);color:#fff;font-size:24px;line-height:1}.mobile-menu-toggle{display:inline-grid}.sidebar-toggle{display:none}.sidebar-collapsed .sidebar .product{display:flex}.sidebar-collapsed .sidebar .role-pill{display:flex}.sidebar-collapsed .sidebar .nav-label{display:flex}.sidebar-collapsed .sidebar .nav-text{display:block}.sidebar-collapsed .sidebar .nav-tag{display:inline-block}.sidebar-collapsed .sidebar .nav-item{justify-content:flex-start;padding:10px 12px}.topbar{padding:0 14px;gap:10px}.topbar-leading{gap:9px;overflow:hidden}.breadcrumbs{gap:4px}.searchbox{display:none}.content{padding:14px}.challenge-hero{grid-template-columns:1fr}.challenge-ring{display:none}.evidence-grid{grid-template-columns:1fr}.story-timeline{grid-template-columns:repeat(2,1fr)}.challenge-summary .journey,.workspace-journey .journey{grid-template-columns:repeat(2,minmax(0,1fr))}.workspace-title,.assignment-card,.choice-footer,.challenge-list-card{align-items:flex-start;flex-direction:column}.workspace-title{padding:22px 20px}.workspace-title h1{font-size:36px}.workspace-status,.challenge-card-action{align-items:flex-start;text-align:left}.workspace-stage-track{overflow-x:auto;grid-template-columns:repeat(5,110px);padding:0 14px 24px;justify-content:start}.challenge-tabs{padding-inline:14px}.workspace-content{padding:0}.workspace-content .page-head{align-items:flex-start;flex-direction:column}.after-test{grid-template-columns:48px 1fr}.after-test .btn{grid-column:1/-1;width:100%}.paper-card{padding:15px}.paper-preview{padding-inline:13px}.paper-footer{left:13px;right:13px}.chapter-choice{grid-template-columns:82px 1fr}.chapter-choice-cover{padding:10px}.challenge-list-main{align-items:flex-start}.challenge-book{width:70px;height:86px}.choice-footer{bottom:8px}.progress-milestones{grid-template-columns:repeat(2,1fr)}.progress-milestones span{text-align:left}}
@media(max-width:480px){.top-actions .btn{display:none}.breadcrumbs{font-size:11px}.avatar{width:34px;height:34px}}
@media print{.sidebar,.topbar,.btn,.public-nav{display:none!important}.app-shell{display:block}.content{padding:0}.card{box-shadow:none}.paper-card{border:0}.paper-preview{height:auto;min-height:750px}}