:root{--navy:#132d45;--navy-2:#1a3d59;--ink:#192b3a;--muted:#687887;--subtle:#8b9aa7;--line:#e3eaf0;--paper:#ffffff;--canvas:#f4f7fb;--blue:#3575e8;--blue-soft:#eaf1ff;--mint:#dff7ee;--mint-ink:#167a57;--amber:#fff3d9;--amber-ink:#9e6711;--rose:#ffeaeb;--rose-ink:#bb4148;--shadow:0 9px 28px rgba(21,48,73,.055);--radius:19px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--canvas);color:var(--ink);font-family:'DM Sans',system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;-webkit-font-smoothing:antialiased}button,input,select{font:inherit}button{cursor:pointer}button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #83b3ff;outline-offset:2px}a{color:inherit} .app-shell{display:grid;grid-template-columns:252px minmax(0,1fr);min-height:100vh}.sidebar{background:var(--navy);color:#d9e6f0;padding:23px 15px 18px;display:flex;flex-direction:column;gap:27px;position:sticky;top:0;height:100vh;overflow-y:auto}.brand{display:flex;align-items:center;gap:11px;padding:0 11px}.brand-mark{width:38px;height:38px;border-radius:13px;display:grid;place-items:center;background:linear-gradient(140deg,#59d5bb,#69a3ff);color:#103248;font-weight:800;font-family:Manrope,sans-serif;font-size:19px;box-shadow:0 6px 15px #071c3060}.brand-name{font-family:Manrope,sans-serif;font-size:17px;font-weight:800;letter-spacing:-.5px;color:#fff;line-height:1.1}.brand-tag{font-size:10px;letter-spacing:1.55px;text-transform:uppercase;color:#9eb7ca;margin-top:4px}.nav-label{font-size:10px;letter-spacing:1.5px;text-transform:uppercase;color:#7d9bb2;padding:0 13px;margin-bottom:7px}.nav-group{display:grid;gap:5px}.nav-btn{background:transparent;border:0;width:100%;color:#b9cbd8;border-radius:11px;padding:12px 13px;display:flex;gap:12px;align-items:center;text-align:left;font-weight:600;font-size:13px;transition:.18s}.nav-btn:hover{background:#ffffff0c;color:#fff}.nav-btn.active{background:#ffffff18;color:#fff;box-shadow:inset 3px 0 #59d5bb}.nav-icon{display:inline-grid;place-items:center;width:22px;font-size:17px;color:#86c4d0}.sidebar-bottom{margin-top:auto}.sidebar-note{border:1px solid #ffffff18;border-radius:14px;padding:14px;background:#ffffff08}.sidebar-note strong{font-size:12px;color:#fff;display:block;margin-bottom:6px}.sidebar-note p{font-size:11px;color:#a8becd;line-height:1.55;margin:0}.main-area{min-width:0}.topbar{height:82px;background:#ffffffd9;backdrop-filter:blur(16px);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 clamp(18px,3.3vw,44px);position:sticky;top:0;z-index:20}.crumb{font-size:12px;color:var(--muted);display:flex;gap:8px;align-items:center}.crumb strong{color:var(--ink);font-weight:700}.top-actions{display:flex;align-items:center;gap:11px}.mode-toggle{display:flex;background:#eef2f6;padding:4px;border-radius:11px;gap:3px}.mode-toggle button{border:0;background:transparent;color:#657586;border-radius:8px;font-size:11px;font-weight:700;padding:8px 11px}.mode-toggle button.active{background:#fff;color:var(--navy);box-shadow:0 2px 7px #0b294111}.avatar{width:36px;height:36px;border-radius:12px;display:grid;place-items:center;background:#e4f7f1;color:#167a57;font-weight:800;font-size:13px}.page{max-width:1500px;margin:0 auto;padding:32px clamp(18px,3.3vw,44px) 56px}.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:25px}.eyebrow{color:var(--blue);text-transform:uppercase;font-size:10px;letter-spacing:1.8px;font-weight:800;margin-bottom:8px}.page-title{font-family:Manrope,sans-serif;font-weight:800;font-size:clamp(24px,2.4vw,34px);letter-spacing:-1.1px;line-height:1.16;margin:0}.page-subtitle{color:var(--muted);font-size:13px;line-height:1.6;margin:9px 0 0;max-width:690px}.muted{color:var(--muted)}.tiny{font-size:11px}.small{font-size:12px}.btn{border:1px solid transparent;border-radius:11px;padding:11px 15px;font-size:12px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:40px;transition:transform .13s,background .13s;white-space:nowrap}.btn:active{transform:translateY(1px)}.btn-primary{color:#fff;background:var(--navy);box-shadow:0 5px 12px #132d451e}.btn-primary:hover{background:#1b4666}.btn-blue{background:var(--blue);color:#fff}.btn-secondary{background:#fff;border-color:var(--line);color:var(--ink)}.btn-secondary:hover{background:#f8fafc}.btn-quiet{color:#536a7d;background:transparent}.btn-danger{background:#fff0f0;color:#a3343b}.btn-lg{padding:14px 18px;min-height:48px;font-size:13px}.w-full{width:100%}.grid{display:grid;gap:17px}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);min-width:0}.card-pad{padding:22px}.card-title-row{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-bottom:17px}.card-title{font-family:Manrope,sans-serif;font-size:15px;letter-spacing:-.3px;font-weight:800;margin:0}.card-caption{font-size:11px;color:var(--muted);margin-top:5px}.stat-card{padding:19px 20px;display:flex;gap:13px;align-items:flex-start}.stat-icon{height:42px;width:42px;border-radius:13px;display:grid;place-items:center;flex-shrink:0;font-size:19px}.stat-number{font-family:Manrope,sans-serif;font-size:27px;letter-spacing:-.9px;font-weight:800;line-height:1.1}.stat-label{font-size:11px;color:var(--muted);margin-top:6px}.stat-foot{font-size:10px;color:var(--mint-ink);margin-top:8px;font-weight:700}.hero-card{min-height:228px;border:0;color:#fff;background:radial-gradient(circle at 88% 12%,#456c99 0,transparent 24%),linear-gradient(120deg,#142f48 0%,#1c4666 62%,#28637b 100%);padding:29px 32px;position:relative;overflow:hidden;display:grid;grid-template-columns:minmax(0,1.3fr) minmax(150px,.7fr);align-items:center;gap:18px}.hero-card:after{content:'';position:absolute;width:230px;height:230px;border:1px solid #ffffff20;border-radius:50%;right:60px;top:-115px;box-shadow:0 0 0 35px #ffffff05,0 0 0 70px #ffffff04}.hero-card h2{font-family:Manrope,sans-serif;font-size:clamp(22px,2.5vw,31px);letter-spacing:-1px;line-height:1.2;margin:8px 0 11px;max-width:520px}.hero-card p{font-size:12px;color:#c5d9e6;line-height:1.65;max-width:490px;margin:0 0 19px}.hero-art{position:relative;z-index:1;display:flex;justify-content:center;align-items:center;min-height:155px}.number-orbit{height:156px;width:156px;border-radius:50%;border:1px solid #ffffff33;display:grid;place-items:center;position:relative;background:#ffffff07}.orbit-core{height:85px;width:85px;border-radius:25px;background:linear-gradient(135deg,#69d7c0,#88b7ff);color:#15384c;display:grid;place-items:center;font:800 28px Manrope,sans-serif;transform:rotate(-5deg);box-shadow:0 14px 30px #001b2a4d}.orbit-tag{position:absolute;min-width:43px;text-align:center;padding:7px 9px;border:1px solid #ffffff30;border-radius:10px;background:#ffffff16;color:#fff;font-weight:800;font-size:12px;backdrop-filter:blur(8px)}.orbit-a{top:8px;left:12px}.orbit-b{top:31px;right:-9px}.orbit-c{bottom:10px;left:27px}.section{margin-top:24px}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:13px}.section-heading h3{font-family:Manrope,sans-serif;font-size:16px;font-weight:800;letter-spacing:-.4px;margin:0}.section-heading p{font-size:11px;color:var(--muted);margin:5px 0 0}.text-link{font-size:11px;font-weight:800;color:var(--blue);background:none;border:0;padding:7px}.progress-track{height:7px;border-radius:50px;background:#edf1f5;overflow:hidden}.progress-fill{height:100%;border-radius:50px;background:linear-gradient(90deg,#3d7cf0,#5ccbb2);transition:width .25s}.domain-card{padding:18px;transition:transform .16s,border .16s;cursor:pointer}.domain-card:hover{transform:translateY(-2px);border-color:#b8cce0}.domain-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.domain-icon{height:37px;width:37px;display:grid;place-items:center;border-radius:12px;font-size:17px}.domain-title{font-weight:800;font-size:13px;line-height:1.35;margin-top:13px}.domain-meta{font-size:10px;color:var(--muted);margin-top:4px}.domain-bottom{margin-top:17px;display:flex;align-items:center;justify-content:space-between;font-size:10px;color:var(--muted)}.pill{display:inline-flex;align-items:center;gap:5px;padding:5px 8px;border-radius:100px;font-size:10px;font-weight:800;white-space:nowrap}.pill-blue{background:var(--blue-soft);color:#2d64bf}.pill-green{background:var(--mint);color:var(--mint-ink)}.pill-amber{background:var(--amber);color:var(--amber-ink)}.pill-rose{background:var(--rose);color:var(--rose-ink)}.pill-neutral{background:#eef2f6;color:#5f7283}.two-col{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(275px,.85fr);gap:17px}.skill-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;padding:14px 0;border-bottom:1px solid #edf1f4;align-items:center}.skill-row:last-child{border-bottom:0}.skill-name{font-size:12px;font-weight:700;line-height:1.4}.skill-sub{font-size:10px;color:var(--muted);margin-top:4px}.list-action{border:1px solid var(--line);background:#fff;border-radius:9px;padding:8px 10px;color:#2c5273;font-size:11px;font-weight:800;white-space:nowrap}.list-action:hover{background:#f4f8fc}.achievement{display:flex;align-items:center;gap:12px;padding:13px 0;border-bottom:1px solid #edf1f4}.achievement:last-child{border-bottom:0}.achievement-icon{height:37px;width:37px;border-radius:12px;display:grid;place-items:center;font-size:16px}.achievement strong{display:block;font-size:11px}.achievement span{font-size:10px;color:var(--muted);display:block;margin-top:4px}.table-wrap{overflow:auto;width:100%}table{border-collapse:collapse;width:100%;min-width:620px;text-align:left}th{font-size:9px;letter-spacing:1px;text-transform:uppercase;color:#83919e;font-weight:800;padding:12px 14px;border-bottom:1px solid var(--line);background:#fafbfd}td{padding:14px;border-bottom:1px solid #edf1f4;font-size:11px;vertical-align:middle}tbody tr:last-child td{border-bottom:0}tbody tr:hover{background:#fbfcfe}.student-cell{display:flex;align-items:center;gap:10px}.student-avatar{width:31px;height:31px;border-radius:10px;background:#e7effa;color:#2f5e9f;display:grid;place-items:center;font-size:10px;font-weight:800;flex-shrink:0}.student-name{font-weight:800;font-size:11px}.student-grade{font-size:10px;color:var(--muted);margin-top:3px}.inline-progress{display:flex;align-items:center;gap:8px;min-width:110px}.inline-progress .progress-track{width:75px}.inline-progress span{font-size:10px;font-weight:800}.search-bar{display:flex;gap:9px;align-items:center;flex-wrap:wrap}.field{border:1px solid #dce5ed;border-radius:11px;background:#fff;min-height:42px;padding:10px 12px;color:var(--ink);font-size:12px;width:100%;outline:none}.field::placeholder{color:#9caab5}.search-field{max-width:370px;position:relative;flex:1}.search-field .field{padding-left:36px}.search-symbol{position:absolute;left:13px;top:11px;color:#7f91a0;font-size:15px}.select{width:auto;min-width:150px}.filter-row{display:flex;gap:8px;flex-wrap:wrap;margin:17px 0}.filter-chip{border:1px solid var(--line);background:#fff;border-radius:99px;padding:8px 12px;font-size:10px;color:#617485;font-weight:800}.filter-chip.active{background:var(--navy);border-color:var(--navy);color:#fff}.skill-card{padding:18px;display:flex;flex-direction:column;gap:13px}.skill-card-head{display:flex;justify-content:space-between;align-items:flex-start;gap:8px}.skill-id{font-size:9px;letter-spacing:1px;font-weight:800;color:#8091a0}.skill-card h3{font-size:13px;line-height:1.4;margin:7px 0 0;font-weight:800}.skill-card p{font-size:11px;color:var(--muted);line-height:1.5;margin:0;flex:1}.skill-card-foot{display:flex;align-items:center;justify-content:space-between;gap:8px;border-top:1px solid #edf1f4;padding-top:12px}.skill-example{font-size:10px;background:#f5f8fb;border-radius:10px;padding:11px;color:#50667a;line-height:1.5}.empty-state{padding:44px;text-align:center;color:var(--muted)}.empty-state strong{display:block;color:var(--ink);margin-bottom:8px}.session-shell{max-width:780px;margin:8px auto}.session-top{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:16px}.session-back{border:0;background:transparent;color:#627587;font-size:12px;font-weight:700;padding:8px 0}.session-stage{min-height:500px;padding:clamp(20px,4vw,44px);position:relative;overflow:hidden}.session-stage:before{content:'';position:absolute;inset:0 0 auto;height:6px;background:linear-gradient(90deg,#397aef,#5bceb7)}.session-meta{display:flex;align-items:center;justify-content:space-between;gap:12px}.session-kind{font-size:10px;letter-spacing:1.1px;font-weight:800;text-transform:uppercase;color:#738596}.session-timer{background:#f2f6f9;border-radius:10px;padding:9px 11px;font-size:11px;font-weight:800;color:#41586c;font-variant-numeric:tabular-nums}.session-progress{margin:20px 0 30px}.session-question-count{display:flex;justify-content:space-between;align-items:center;font-size:10px;color:var(--muted);margin-bottom:8px}.session-question{font-family:Manrope,sans-serif;font-size:clamp(23px,4vw,36px);letter-spacing:-1px;line-height:1.35;text-align:center;font-weight:800;max-width:620px;margin:25px auto 12px}.session-instruction{text-align:center;color:var(--muted);font-size:12px;margin-bottom:21px}.question-visual{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin:15px auto 20px;max-width:230px}.dot{height:18px;width:18px;background:#4e8af0;border-radius:50%;box-shadow:inset -3px -3px 0 #255bbf30}.answer-zone{max-width:370px;margin:0 auto}.answer-field{font-family:Manrope,sans-serif;font-size:24px;text-align:center;height:60px;font-weight:800;border-radius:13px;letter-spacing:.4px}.answer-feedback{text-align:center;font-weight:800;font-size:12px;margin:12px 0;min-height:19px}.keypad-wrap{margin-top:16px}.keypad-head{display:flex;justify-content:space-between;align-items:center;font-size:10px;color:var(--muted);margin-bottom:8px}.keypad-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;max-width:310px;margin:0 auto}.keypad-digits .key{min-height:54px;font-size:18px}.key{border:1px solid #e0e7ed;background:#f7f9fc;min-height:48px;border-radius:11px;color:#294359;font-size:15px;font-weight:800;box-shadow:0 2px 0 #dfe6ed;touch-action:manipulation;user-select:none;-webkit-user-select:none}.key:hover{background:#edf4fc}.key-special{font-size:13px;background:#eef3f7}.keypad-utilities{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;max-width:310px;margin:8px auto 0}.keypad-utilities .key{min-height:44px}.key-enter{background:var(--navy);border-color:var(--navy);color:#fff}.key-enter:hover{background:#244b69}.keypad-enter{display:block;width:100%;max-width:310px;min-height:50px;margin:8px auto 0;font-size:15px}.keypad-wrap{max-width:370px;margin:16px auto 0}.keypad-head{max-width:370px;margin-left:auto;margin-right:auto}.session-footer{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:24px}.assessment-notice{padding:11px 13px;border-radius:10px;background:#f6f8fb;font-size:10px;color:var(--muted);line-height:1.45;margin-top:15px}.results-hero{text-align:center;padding:34px 18px 28px}.results-circle{height:112px;width:112px;display:grid;place-items:center;border-radius:50%;background:#e6f7f0;color:#14754f;margin:0 auto 20px;font-family:Manrope,sans-serif;font-size:29px;font-weight:800;border:8px solid #f4fbf8}.results-hero h2{font-family:Manrope,sans-serif;font-size:25px;letter-spacing:-.7px;margin:0}.results-hero p{max-width:550px;margin:10px auto 0;color:var(--muted);font-size:12px;line-height:1.6}.domain-result{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;align-items:center;padding:12px 0;border-bottom:1px solid #eef2f5}.domain-result:last-child{border:0}.bar-small{width:120px;display:flex;align-items:center;gap:9px}.bar-small .progress-track{flex:1}.bar-small strong{font-size:10px}.teacher-note{border-left:3px solid #5ac7b2;background:#f3fbf8;padding:14px 16px;border-radius:0 12px 12px 0;color:#315c50;font-size:11px;line-height:1.6}.setup-step{display:flex;gap:13px;padding:16px 0;border-bottom:1px solid #edf1f4}.setup-step:last-child{border:0}.step-no{height:29px;width:29px;flex-shrink:0;border-radius:9px;background:#eaf1ff;color:#2d65be;display:grid;place-items:center;font-weight:800;font-size:11px}.setup-step strong{font-size:12px}.setup-step p{font-size:11px;line-height:1.6;color:var(--muted);margin:5px 0 0}.code-inline{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:#f0f3f6;padding:2px 5px;border-radius:5px;font-size:10px}.toast{position:fixed;right:20px;bottom:20px;background:#152f47;color:#fff;padding:13px 17px;border-radius:12px;box-shadow:0 10px 35px #001a2b30;font-size:12px;z-index:100;max-width:calc(100vw - 40px)}.footer-note{font-size:10px;color:#8795a1;line-height:1.6;margin-top:23px}.mobile-bottom{display:none}
@media(max-width:1180px){.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}.hero-card{grid-template-columns:1fr .5fr}.hero-art{opacity:.75}.app-shell{grid-template-columns:218px minmax(0,1fr)}}
@media(max-width:850px){.app-shell{grid-template-columns:1fr}.sidebar{display:none}.topbar{height:72px;padding:0 17px}.page{padding:25px 17px 88px}.mobile-bottom{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;bottom:0;left:0;right:0;z-index:50;background:#fff;border-top:1px solid var(--line);padding:7px max(10px,env(safe-area-inset-left)) calc(7px + env(safe-area-inset-bottom));box-shadow:0 -5px 18px #102f4810}.mobile-bottom button{background:transparent;border:0;display:grid;gap:3px;place-items:center;padding:6px 2px;color:#82909d;font-size:9px;font-weight:800}.mobile-bottom button span:first-child{font-size:19px}.mobile-bottom button.active{color:var(--blue)}.two-col{grid-template-columns:1fr}.page-head{align-items:flex-start;flex-direction:column}.hero-card{grid-template-columns:1fr;min-height:240px;padding:26px}.hero-art{display:none}.hero-card h2{font-size:26px}.hero-card p{max-width:100%}.top-actions{gap:6px}.mode-toggle button{padding:7px 8px;font-size:10px}.crumb{font-size:10px}.session-stage{min-height:unset}.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:520px){.grid-4,.grid-3,.grid-2{grid-template-columns:1fr}.grid-4 .stat-card{padding:15px}.stat-number{font-size:24px}.card-pad{padding:17px}.hero-card{padding:24px 20px}.hero-card h2{font-size:24px}.search-field{max-width:none;flex-basis:100%}.select{width:100%;min-width:0}.search-bar .btn{flex:1}.page-title{font-size:27px}.session-stage{padding:23px 15px}.session-question{font-size:25px}.keypad-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.session-footer{align-items:stretch;flex-direction:column}.session-footer .btn{width:100%}.session-top{align-items:flex-start}.mode-toggle button{padding:7px}.topbar{gap:10px}.top-actions .setup-short{display:none}.table-wrap{margin:0 -4px}.domain-card{padding:15px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* Firebase teacher sign-in and cloud workspace */
.auth-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,.85fr);gap:18px;align-items:stretch;max-width:980px}
.auth-card,.auth-info{min-width:0}
.auth-card{max-width:560px;width:100%}
.auth-mark{margin-bottom:5px}
.auth-label{display:block;font-size:12px;font-weight:800;color:var(--ink);margin:13px 0 7px}
.auth-input{width:100%;min-height:46px;border:1px solid #d8e1e9;border-radius:10px;padding:11px 13px;background:#fff;color:var(--ink);font-size:14px}
.auth-input:focus{border-color:#6b9ce9;outline:3px solid #83b3ff36}
.auth-info .setup-step{padding:15px 0}
.cloud-workspace-row{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.cloud-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
button:disabled{opacity:.55;cursor:not-allowed}
@media(max-width:820px){.auth-layout{grid-template-columns:1fr}.auth-card{max-width:none}.cloud-workspace-row{align-items:flex-start;flex-direction:column}.cloud-actions{width:100%}.cloud-actions .btn{flex:1 1 auto}}
@media(max-width:560px){.cloud-actions{display:grid;grid-template-columns:1fr}.auth-card,.auth-info{padding:18px}}