:root{--green:#00b050;--green2:#39ff88;--black:#050807;--ink:#eaf7ef;--muted:#98a39b;--card:#101714;--line:#24342a;--white:#ffffff;--soft:#f4f7f5;--danger:#ff5f5f;--gold:#f7d154;--shadow:0 22px 70px rgba(0,0,0,.35);}
*{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;background:radial-gradient(circle at top left,rgba(0,176,80,.22),transparent 34%),linear-gradient(135deg,#020403 0%,#07110b 45%,#020403 100%);color:var(--ink);min-height:100vh} a{color:inherit;text-decoration:none}.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:rgba(5,8,7,.86);backdrop-filter:blur(18px);border-bottom:1px solid rgba(255,255,255,.08)}.menu,.close{border:1px solid var(--line);background:#0c120f;color:var(--white);border-radius:12px;padding:10px 12px;font-size:20px}.brand{display:flex;gap:10px;align-items:center}.brand small{display:block;color:var(--muted);font-size:12px}.mark{display:grid;place-items:center;width:38px;height:38px;border-radius:13px;background:linear-gradient(135deg,var(--green),#006b32);font-weight:900;color:#001b0c;box-shadow:0 0 28px rgba(0,176,80,.42)}.arena-link{padding:10px 13px;border-radius:999px;background:var(--green);color:#001b0c;font-weight:900}.sidenav{position:fixed;inset:0 auto 0 0;width:min(320px,86vw);background:#050807;z-index:50;transform:translateX(-105%);transition:.25s transform;box-shadow:var(--shadow);border-right:1px solid var(--line);padding:18px;overflow-y:auto;padding-bottom:34px}.sidenav.open{transform:translateX(0)}.sidenav a{display:block;padding:15px;border-radius:14px;color:#d8eadd;font-weight:800;margin:7px 0}.sidenav a.active,.sidenav a:hover{background:rgba(0,176,80,.18);outline:1px solid rgba(0,176,80,.35)}.nav-meter{height:9px;background:#17201a;border-radius:999px;overflow:hidden;margin:18px 6px}.nav-meter span{display:block;height:100%;background:linear-gradient(90deg,var(--green),var(--green2));width:0%}main{width:min(1180px,100%);margin:0 auto;padding:22px 14px 60px}.hero{position:relative;overflow:hidden;padding:28px;border:1px solid rgba(57,255,136,.22);border-radius:28px;background:linear-gradient(135deg,rgba(0,176,80,.18),rgba(255,255,255,.04)),radial-gradient(circle at bottom right,rgba(57,255,136,.18),transparent 38%);box-shadow:var(--shadow)}.hero:after{content:"";position:absolute;inset:auto -40px -80px auto;width:260px;height:260px;border-radius:50%;border:1px solid rgba(57,255,136,.18)}h1{font-size:clamp(32px,6vw,74px);line-height:.95;margin:12px 0 14px;letter-spacing:-.06em}.green{color:var(--green2)}.pill,.eyebrow{display:inline-flex;align-items:center;gap:7px;padding:7px 11px;border:1px solid rgba(57,255,136,.32);border-radius:999px;color:var(--green2);background:rgba(0,176,80,.12);font-size:12px;text-transform:uppercase;letter-spacing:.1em;font-weight:900}.hero p{max-width:850px;color:#d3e8d9;font-size:18px}.hero-actions,.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:15px;padding:12px 15px;background:var(--green);color:#001b0c;font-weight:950;cursor:pointer;box-shadow:0 10px 22px rgba(0,176,80,.2)}.btn.white{background:#fff;color:#050807}.btn.secondary{background:#111a15;color:#eaf7ef;outline:1px solid var(--line);box-shadow:none}.btn.block{display:flex;width:100%}.btn:active{transform:translateY(1px)}.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}.cards{margin-top:18px}.card{grid-column:span 4;background:linear-gradient(180deg,rgba(255,255,255,.065),rgba(255,255,255,.025));border:1px solid rgba(255,255,255,.10);border-radius:24px;padding:20px;box-shadow:0 15px 44px rgba(0,0,0,.2)}.card.light{background:#f8fbf9;color:#07110b}.card h2,.card h3{margin:12px 0 8px}.card p,.card li{color:var(--muted);line-height:1.5}.card.light p,.card.light li{color:#344238}.span6{grid-column:span 6}.span8{grid-column:span 8}.span12{grid-column:span 12}.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:16px 0}.stat{background:#fff;color:#07110b;border-radius:20px;padding:16px}.stat b{font-size:30px;display:block}.stat span{color:#4d5a52;font-weight:700}.section-title{margin:34px 0 12px}.section-title h2{font-size:clamp(24px,4vw,42px);margin:0}.section-title p{color:#bfd0c5;max-width:850px}.mission-card{display:flex;flex-direction:column;justify-content:space-between;min-height:260px}.mission-card .date{color:#94a69b;font-weight:800}.mission-card .num{font-size:42px;font-weight:950;color:var(--green2)}.lesson-head{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;flex-wrap:wrap}.mini-progress{min-width:220px}.bar{height:12px;border-radius:999px;background:#1b251f;overflow:hidden}.bar span{display:block;height:100%;background:linear-gradient(90deg,var(--green),var(--green2));width:0}.quote{font-size:22px;font-weight:950;line-height:1.18}.write{width:100%;min-height:86px;background:#07110b;border:1px solid var(--line);border-radius:16px;padding:14px;color:var(--white);font:inherit;resize:vertical}.light .write{background:#fff;color:#07110b;border-color:#cad7ce}.note{display:grid;grid-template-columns:1fr minmax(120px,180px) auto;gap:10px;align-items:center;padding:12px;border-radius:16px;background:rgba(0,176,80,.06);border:1px solid rgba(0,176,80,.16);margin:9px 0}.input{width:100%;padding:12px;border-radius:14px;border:1px solid #cfdad3;background:#fff;color:#061009;font:inherit}.check{border:0;border-radius:12px;padding:11px 12px;background:#111a15;color:#fff;font-weight:900;cursor:pointer}.feedback{font-size:13px;font-weight:800;margin-top:6px;min-height:20px}.ok{color:#00c76a}.no{color:#ff7878}.problem-list{display:grid;gap:11px}.problem{background:#f8fbf9;color:#07110b;border:1px solid #dce7df;border-radius:18px;padding:14px}.problem .q{font-weight:850;line-height:1.35}.problem small{color:#4b5b51}.homework-tools{position:sticky;top:64px;z-index:8;background:rgba(5,8,7,.92);backdrop-filter:blur(14px);border:1px solid var(--line);border-radius:20px;padding:12px;margin:16px 0}.tabbar{display:flex;gap:8px;overflow:auto;padding-bottom:4px}.tabbar button{white-space:nowrap;border:1px solid var(--line);background:#0e1612;color:#fff;border-radius:999px;padding:10px 12px;font-weight:900}.tabbar button.active{background:var(--green);color:#001b0c}.badge{display:inline-flex;border-radius:999px;padding:7px 10px;background:#17211b;color:#dcefe3;font-weight:900}.badge.green{background:rgba(0,176,80,.18);color:var(--green2)}.lab{border-left:6px solid var(--green);background:#fff;color:#07110b}.lab.warning{border-left-color:var(--gold)}.arena-panel{display:grid;grid-template-columns:1fr 340px;gap:18px}.arena-screen{text-align:center;background:#050807;border:1px solid rgba(57,255,136,.3);border-radius:26px;padding:24px}.equation{font-size:clamp(44px,12vw,96px);font-weight:950;letter-spacing:-.05em;margin:24px 0}.keypad{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;max-width:320px;margin:12px auto}.keypad button{padding:16px;border-radius:14px;border:1px solid var(--line);background:#101714;color:#fff;font-weight:950;font-size:20px}.score-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.scorebox{background:#fff;color:#07110b;border-radius:16px;padding:14px;text-align:center}.scorebox b{font-size:28px;display:block}.table{width:100%;border-collapse:collapse;background:#fff;color:#061009;border-radius:18px;overflow:hidden}.table th,.table td{border-bottom:1px solid #dbe6df;padding:12px;text-align:left;vertical-align:top}.table th{background:#e8f5ec}.footer-actions{position:fixed;bottom:12px;left:50%;transform:translateX(-50%);width:min(740px,calc(100% - 24px));display:flex;gap:10px;padding:10px;background:rgba(5,8,7,.86);backdrop-filter:blur(16px);border:1px solid var(--line);border-radius:20px;z-index:20}.footer-actions .btn{flex:1}@media(max-width:850px){.card,.span6,.span8{grid-column:span 12}.stat-row{grid-template-columns:repeat(2,1fr)}.arena-panel{grid-template-columns:1fr}.note{grid-template-columns:1fr}.topbar{gap:8px}.arena-link{display:none}.hero{padding:22px}main{padding-bottom:90px}}@media print{body{background:white;color:#000}.topbar,.sidenav,.footer-actions,.btn,.homework-tools{display:none!important}.card,.hero,.problem{box-shadow:none;border-color:#bbb;break-inside:avoid}.card{background:white;color:#000}.hero{background:white;color:#000}main{width:100%;padding:0}.problem{page-break-inside:avoid}}

.prompt-card{background:#eef8f1;color:#061009;border:1px solid #bfe6cc;border-radius:18px;padding:14px;margin:12px 0;font-size:18px;line-height:1.35}.student-work{background:#fff7df;color:#061009;border:1px solid #eed47b;border-radius:18px;padding:14px;margin:12px 0;font-size:18px;line-height:1.35}.protected{border-left:5px solid #707b73}.protected-badge{justify-content:center;background:#edf2ee;color:#2b3830;border:1px solid #c9d6ce}.problem.protected .feedback{color:#536158}.problem.checkable .feedback{color:#536158}

/* Hybrid command-center upgrade: original wow homepage + structured daily missions */
.side-brand{display:flex;align-items:center;gap:12px;margin:4px 0 22px}.side-brand strong{display:block;line-height:1.1}.side-brand small{display:block;color:#9dffbd;text-transform:uppercase;letter-spacing:.14em;font-size:11px;font-weight:900;margin-top:4px}.side-logo{display:grid;place-items:center;width:54px;height:54px;border-radius:18px;background:linear-gradient(165deg,#f1fff6 0 57%,var(--green) 58% 100%);color:#061009;font-weight:950;box-shadow:0 0 34px rgba(0,176,80,.24)}.sidenav a{display:flex;align-items:center;justify-content:space-between}.sidenav a span{color:var(--green2);font-size:24px;line-height:0}.course-standard{position:relative;margin:18px 0 0;border:1px solid rgba(57,255,136,.25);background:linear-gradient(180deg,rgba(0,176,80,.14),rgba(255,255,255,.035));border-radius:24px;padding:18px 20px}.course-standard span{display:block;color:#9dffbd;text-transform:uppercase;letter-spacing:.16em;font-weight:950;font-size:11px;margin-bottom:10px}.course-standard b{display:block;color:#f4fff7;line-height:1.25;font-size:18px}.course-standard .nav-meter{margin:18px 0 0}.home-hero{min-height:360px;display:grid;grid-template-columns:minmax(0,1fr) 310px;align-items:center;gap:24px;padding:42px;isolation:isolate}.command-hero{background:radial-gradient(circle at 76% 44%,rgba(57,255,136,.18),transparent 28%),linear-gradient(135deg,rgba(0,176,80,.26),rgba(255,255,255,.035)),linear-gradient(115deg,#06210f 0%,#06110a 55%,#0e3019 100%)}.hero-gridline{position:absolute;inset:0;background-image:linear-gradient(rgba(57,255,136,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(57,255,136,.08) 1px,transparent 1px);background-size:38px 38px;mask-image:linear-gradient(90deg,#000,transparent 85%);opacity:.75;z-index:-1}.hero-copy{position:relative;z-index:2}.hero-copy .lead{font-size:clamp(18px,2.1vw,24px);line-height:1.18;color:#e8fff0;max-width:900px}.hero-panel{border:1px solid rgba(255,255,255,.15);background:linear-gradient(180deg,rgba(255,255,255,.12),rgba(255,255,255,.04));border-radius:28px;padding:22px;box-shadow:0 24px 80px rgba(0,0,0,.35);position:relative;z-index:2}.ring{--p:0;width:150px;height:150px;border-radius:50%;display:grid;place-items:center;margin:0 auto 16px;background:conic-gradient(var(--green2) calc(var(--p)*1%), rgba(255,255,255,.14) 0);position:relative}.ring:after{content:"";position:absolute;inset:13px;border-radius:50%;background:#08130d;border:1px solid rgba(255,255,255,.12)}.ring span{position:relative;z-index:2;font-size:36px;font-weight:950;color:#fff}.micro-stats{display:grid;grid-template-columns:auto 1fr;gap:7px 10px;margin-top:14px}.micro-stats b{color:var(--green2);font-size:24px}.micro-stats span{color:#cfe5d6}.launch-strip{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:14px;margin:18px 0 30px}.launch-card{display:block;border:1px solid rgba(255,255,255,.10);background:linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.025));border-radius:24px;padding:20px;min-height:124px;box-shadow:0 18px 50px rgba(0,0,0,.18)}.launch-card.today{border-color:rgba(57,255,136,.34);background:linear-gradient(135deg,rgba(0,176,80,.22),rgba(255,255,255,.04))}.launch-card span{display:block;color:#9dffbd;text-transform:uppercase;letter-spacing:.14em;font-weight:950;font-size:11px}.launch-card b{display:block;font-size:24px;line-height:1.05;margin:12px 0 8px;color:#fff}.launch-card small{color:#bfccc4;font-weight:700}.cycle-grid{display:grid;grid-template-columns:repeat(8,1fr);gap:9px;margin:16px 0 28px}.cycle{background:#f7fbf8;color:#07110b;border-radius:18px;padding:14px;text-align:center;border:1px solid #dce9e0}.cycle span{display:block;color:#00a54c;font-weight:950;font-size:12px}.cycle b{font-size:18px}.home-feature-grid .card{min-height:230px}.feature-card{position:relative;overflow:hidden}.feature-card:after{content:"";position:absolute;right:-30px;bottom:-50px;width:140px;height:140px;border-radius:50%;border:1px solid rgba(57,255,136,.18)}
@media(min-width:1100px){.topbar{display:none}.sidenav{transform:none;inset:0 auto 0 0;width:286px;box-shadow:none;background:linear-gradient(180deg,#050807,#031007);border-right:1px solid rgba(255,255,255,.09);padding:28px 18px}.sidenav .close{display:none}main{width:auto;max-width:none;margin-left:286px;padding:28px clamp(24px,3vw,48px) 70px}.sidenav a{border:1px solid rgba(255,255,255,.09);background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.025));font-size:18px;margin:10px 0;padding:15px 17px}.sidenav a.active,.sidenav a:hover{background:linear-gradient(135deg,rgba(0,176,80,.32),rgba(255,255,255,.045));outline:1px solid rgba(57,255,136,.36)}}
@media(max-width:900px){.home-hero{grid-template-columns:1fr;padding:24px}.hero-panel{max-width:360px}.launch-strip{grid-template-columns:1fr}.cycle-grid{grid-template-columns:repeat(2,1fr)}.course-standard{position:relative;margin-top:20px}.side-brand{margin-top:18px}.side-logo{width:48px;height:48px}}


/* Big Wow Home Page Upgrade */
.wow-home{position:relative;overflow:hidden;min-height:620px;border:1px solid rgba(57,255,136,.25);border-radius:34px;padding:clamp(28px,5vw,64px);display:grid;grid-template-columns:minmax(0,1.05fr) 380px;gap:34px;align-items:center;background:radial-gradient(circle at 78% 32%,rgba(57,255,136,.25),transparent 22%),radial-gradient(circle at 8% 10%,rgba(0,176,80,.3),transparent 24%),linear-gradient(135deg,#041107 0%,#061c0e 44%,#010302 100%);box-shadow:0 35px 110px rgba(0,0,0,.55), inset 0 0 0 1px rgba(255,255,255,.03);isolation:isolate}.wow-bg-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(57,255,136,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(57,255,136,.08) 1px,transparent 1px);background-size:44px 44px;mask-image:radial-gradient(circle at 54% 48%,#000,transparent 78%);z-index:-3}.wow-orb{position:absolute;border-radius:50%;filter:blur(2px);z-index:-2}.wow-orb.one{width:380px;height:380px;right:-90px;top:60px;background:radial-gradient(circle,rgba(57,255,136,.23),transparent 66%)}.wow-orb.two{width:260px;height:260px;left:-80px;bottom:-70px;background:radial-gradient(circle,rgba(0,176,80,.23),transparent 65%)}.wow-left h1{font-size:clamp(54px,8.7vw,118px);line-height:.86;letter-spacing:-.085em;margin:18px 0}.mega-pill{font-size:13px;padding:9px 14px;background:rgba(57,255,136,.13)}.wow-lead{font-size:clamp(19px,2vw,25px);line-height:1.18;max-width:880px;color:#e6fff0}.jumbo-actions{margin-top:28px}.btn.jumbo{font-size:18px;border-radius:18px;padding:15px 22px}.command-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:30px;max-width:820px}.command-strip div{background:rgba(255,255,255,.92);color:#061009;border-radius:22px;padding:18px 16px;box-shadow:0 15px 36px rgba(0,0,0,.24)}.command-strip b{display:block;font-size:clamp(25px,3vw,40px);line-height:1;font-weight:950}.command-strip span{display:block;color:#405046;font-weight:850;margin-top:4px}.wow-device{position:relative;background:linear-gradient(180deg,rgba(255,255,255,.14),rgba(255,255,255,.055));border:1px solid rgba(255,255,255,.18);border-radius:34px;padding:20px;box-shadow:0 30px 90px rgba(0,0,0,.45), 0 0 70px rgba(0,176,80,.18);transform:rotate(1.2deg)}.device-top{display:flex;gap:8px;margin-bottom:16px}.device-top span{width:12px;height:12px;border-radius:50%;background:rgba(255,255,255,.35)}.device-card,.device-row>div{border:1px solid rgba(57,255,136,.22);background:rgba(3,10,6,.72);border-radius:22px;padding:17px;margin-bottom:12px}.device-card.live{background:linear-gradient(135deg,rgba(0,176,80,.34),rgba(255,255,255,.08))}.device-card small,.device-row small{display:block;color:#9dffbd;text-transform:uppercase;letter-spacing:.14em;font-weight:950;font-size:11px}.device-card b,.device-row b{display:block;color:#fff;font-size:23px;line-height:1.05;margin-top:8px}.device-card em{display:block;color:#cfe4d5;font-style:normal;margin-top:8px}.device-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.home-command-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:16px;margin:22px 0 36px}.command-tile{display:block;border:1px solid rgba(255,255,255,.11);background:linear-gradient(180deg,rgba(255,255,255,.075),rgba(255,255,255,.025));border-radius:28px;padding:24px;min-height:185px;box-shadow:0 22px 60px rgba(0,0,0,.20);transition:.18s transform,.18s border-color}.command-tile:hover{transform:translateY(-3px);border-color:rgba(57,255,136,.45)}.command-tile.featured{background:linear-gradient(135deg,rgba(0,176,80,.28),rgba(255,255,255,.04));border-color:rgba(57,255,136,.36)}.command-tile span{display:block;color:#9dffbd;text-transform:uppercase;letter-spacing:.15em;font-weight:950;font-size:11px}.command-tile h2{font-size:clamp(26px,3vw,38px);line-height:.98;margin:14px 0 10px}.command-tile p{color:#d5e9dc;line-height:1.4;margin:0}.momentum-cycle{display:grid;grid-template-columns:repeat(8,1fr);gap:10px;margin:14px 0 32px}.cycle-node{position:relative;overflow:hidden;background:#f7fbf8;color:#07110b;border-radius:20px;padding:17px 12px;text-align:center;border:1px solid #dce9e0}.cycle-node:before{content:"";position:absolute;inset:0 auto 0 0;width:5px;background:linear-gradient(var(--green),var(--green2))}.cycle-node span{display:block;color:#00a54c;font-weight:950;font-size:12px;letter-spacing:.12em}.cycle-node b{display:block;font-size:19px}.student-promise{margin-top:32px;border:1px solid rgba(57,255,136,.28);background:linear-gradient(135deg,rgba(0,176,80,.2),rgba(255,255,255,.035));border-radius:30px;padding:34px;text-align:center}.student-promise span{color:#9dffbd;text-transform:uppercase;letter-spacing:.16em;font-weight:950}.student-promise h2{font-size:clamp(34px,5vw,64px);line-height:.92;margin:12px 0}.student-promise p{font-size:24px;color:#e8fff0;margin:0;font-weight:850}@media(max-width:1000px){.wow-home{grid-template-columns:1fr;min-height:auto}.wow-device{max-width:430px;transform:none}.command-strip{grid-template-columns:repeat(2,1fr)}.home-command-grid{grid-template-columns:1fr}.momentum-cycle{grid-template-columns:repeat(2,1fr)}}@media(max-width:540px){.wow-home{padding:24px;border-radius:28px}.command-strip{grid-template-columns:1fr}.wow-left h1{font-size:54px}.device-row{grid-template-columns:1fr}.btn.jumbo{width:100%}.student-promise{padding:24px}}


/* Unit 2 Balance Battle Timer Upgrade */
.timer-chip{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(57,255,136,.36);background:rgba(0,176,80,.14);color:#eafff0;border-radius:999px;padding:10px 14px;font-weight:950;letter-spacing:.02em}
.timer-chip strong{color:#39ff88;font-size:22px}
.timer-chip.done{border-color:rgba(255,95,95,.45);background:rgba(255,95,95,.12)}
.battle-controls{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:14px}

.table-wrap{max-width:100%;overflow-x:auto;border-radius:18px;-webkit-overflow-scrolling:touch}.table-wrap .table{min-width:680px}

/* Pattern First Hybrid Notebook Pilot */
.hybrid-toolbar{margin:18px 0;display:grid;grid-template-columns:minmax(260px,1.6fr) auto minmax(190px,.7fr) minmax(150px,.55fr);gap:16px;align-items:center;background:linear-gradient(135deg,rgba(0,176,80,.16),rgba(255,255,255,.04));border-color:rgba(57,255,136,.28)}
.hybrid-toolbar h2,.hybrid-toolbar p{margin:.25rem 0}.hybrid-role-switch{display:flex;background:#07110b;border:1px solid var(--line);padding:4px;border-radius:14px}.hybrid-role-switch button,.hybrid-tabs button{border:0;background:transparent;color:var(--muted);padding:11px 14px;border-radius:10px;font-weight:900;cursor:pointer}.hybrid-role-switch button.active,.hybrid-tabs button.active{background:var(--green);color:#001b0c}.cloud-status,.grading-chip{display:flex;flex-direction:column;gap:2px;padding:12px;border-radius:14px;background:rgba(255,255,255,.05);border:1px solid var(--line)}.cloud-status{position:relative;padding-left:38px}.status-dot{position:absolute;left:15px;top:18px;width:12px;height:12px;border-radius:50%;box-shadow:0 0 0 5px rgba(247,209,84,.12)}.status-dot.local{background:var(--gold)}.cloud-status small,.grading-chip small{color:var(--muted)}
.hybrid-student-head,.teacher-pilot-head{display:grid;grid-template-columns:minmax(260px,1.5fr) minmax(210px,.7fr) minmax(210px,.7fr);gap:18px;align-items:end;margin:18px 0}.hybrid-student-head label{font-weight:900}.hybrid-student-head label .input{margin-top:7px}.submission-status{display:flex;flex-direction:column;padding:15px;border:1px solid var(--line);border-radius:16px;background:rgba(0,176,80,.09)}.submission-status small,.submission-status span{color:var(--muted)}
.hybrid-tabs{display:flex;gap:7px;overflow-x:auto;padding:5px;margin-bottom:18px;background:#07110b;border:1px solid var(--line);border-radius:16px}.hybrid-tabs button{white-space:nowrap;min-width:130px}
.pattern-first-ribbon{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:18px 0}.pattern-first-ribbon>div{padding:14px;border-radius:16px;background:rgba(255,255,255,.045);border:1px solid var(--line)}.pattern-first-ribbon p{font-size:13px;color:#c9d9ce;margin:9px 0 0}.pattern-badge{display:inline-flex;padding:6px 9px;border-radius:999px;font-size:11px;font-weight:950;letter-spacing:.06em}.pattern-badge.safe{background:rgba(57,255,136,.15);color:#7dffac}.pattern-badge.practice{background:rgba(84,173,255,.16);color:#a8d5ff}.pattern-badge.growth{background:rgba(247,209,84,.16);color:#ffe381}.pattern-badge.revise{background:rgba(194,135,255,.16);color:#d9b2ff}
.hybrid-savebar{position:sticky;top:74px;z-index:12;display:flex;justify-content:space-between;align-items:center;gap:14px;margin:16px 0;padding:13px 16px;border:1px solid rgba(57,255,136,.28);border-radius:16px;background:rgba(5,8,7,.93);backdrop-filter:blur(14px);box-shadow:0 10px 35px rgba(0,0,0,.25)}.hybrid-savebar>div{display:flex;gap:10px;align-items:center}.hybrid-savebar small{color:var(--muted)}
.hybrid-section{margin:16px 0}.hybrid-section h2{margin:.25rem 0 .5rem}.section-kicker{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:8px}.section-kicker>span:last-child{color:var(--muted);font-size:13px;font-weight:800}.hybrid-field{width:100%}.hybrid-label{display:block;font-weight:900;margin:16px 0}.hybrid-label .input,.hybrid-label .write{margin-top:8px}.hybrid-problem-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.hybrid-problem{padding:16px;border:1px solid var(--line);border-radius:16px;background:#0a110d}.hybrid-answer-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:9px;align-items:center;margin-top:12px}.hybrid-problem .feedback{margin-top:9px}.hybrid-reasoning-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.attachment-box{display:grid;grid-template-columns:1fr auto;gap:14px;align-items:center;margin-top:18px;padding:15px;border:1px dashed rgba(57,255,136,.35);border-radius:16px}.attachment-box p{margin:.2rem 0;color:var(--muted)}.attachment-preview{grid-column:1/-1;display:flex;align-items:flex-start;gap:14px}.attachment-preview img{max-width:260px;max-height:220px;object-fit:contain;border-radius:14px;border:1px solid var(--line)}
.hybrid-submit-panel{display:grid;grid-template-columns:minmax(260px,1fr) auto;gap:16px;align-items:center;margin-top:18px;border-color:rgba(57,255,136,.3)}.hybrid-submit-panel .feedback{grid-column:1/-1}.submit-actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end}.btn[disabled]{opacity:.48;cursor:not-allowed;pointer-events:none}.btn.danger{background:rgba(255,95,95,.13);border:1px solid rgba(255,95,95,.38);color:#ffb5b5}
.notebook-hero{display:flex;justify-content:space-between;gap:16px;align-items:center}.submission-timeline{position:relative;margin:18px 0;padding-left:25px}.submission-timeline:before{content:"";position:absolute;left:8px;top:0;bottom:0;width:2px;background:linear-gradient(var(--green),rgba(0,176,80,.05))}.submission-card{position:relative;margin-bottom:16px}.submission-card:before{content:"";position:absolute;left:-25px;top:29px;width:14px;height:14px;border-radius:50%;background:var(--green);box-shadow:0 0 0 6px rgba(0,176,80,.15)}.submission-card-head{display:flex;justify-content:space-between;gap:14px}.submission-score{display:flex;align-items:baseline;gap:9px;margin:14px 0}.submission-score b{font-size:32px;color:var(--green2)}.submission-score span{color:var(--muted)}.status-pill{display:inline-flex;align-items:center;padding:6px 9px;border-radius:999px;font-size:11px;font-weight:950;white-space:nowrap;background:rgba(255,255,255,.08);color:#dce8df}.status-pill.finalized{background:rgba(57,255,136,.14);color:#82ffb0}.status-pill.returned{background:rgba(247,209,84,.16);color:#ffe381}.status-pill.awaiting-review{background:rgba(84,173,255,.16);color:#a8d5ff}.feedback.returned{background:rgba(247,209,84,.13);border-color:rgba(247,209,84,.35);color:#fff0a8}.feedback-card{display:grid;grid-template-columns:minmax(180px,.4fr) 1fr auto;gap:18px;align-items:center;margin:12px 0}.feedback-card>div{display:flex;flex-direction:column;gap:6px}
.teacher-pilot-head{grid-template-columns:minmax(320px,1.3fr) minmax(400px,1fr);align-items:center}.teacher-summary{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}.teacher-summary div{padding:13px 8px;text-align:center;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.045)}.teacher-summary b{display:block;font-size:25px;color:var(--green2)}.teacher-summary span{font-size:11px;color:var(--muted)}.teacher-control-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.teacher-control-grid label{display:block;font-weight:900;margin:12px 0}.teacher-control-grid .input{margin-top:6px}.check-row{display:flex!important;gap:10px;align-items:center}.check-row input{width:18px;height:18px}.teacher-workspace{display:grid;grid-template-columns:minmax(290px,.42fr) minmax(0,1fr);gap:16px;margin:18px 0}.submission-list{align-self:start;position:sticky;top:78px;max-height:76vh;overflow:auto}.list-head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:12px}.submission-list-item{width:100%;display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:8px;align-items:center;padding:13px;margin:7px 0;text-align:left;color:var(--ink);background:#09110d;border:1px solid var(--line);border-radius:14px;cursor:pointer}.submission-list-item.active{border-color:var(--green);background:rgba(0,176,80,.12)}.submission-list-item>div{display:flex;flex-direction:column}.submission-list-item small{color:var(--muted)}.submission-list-item strong{color:var(--green2)}.empty-list{padding:20px;color:var(--muted)}.teacher-review-pane{min-width:0}.review-header{display:flex;justify-content:space-between;gap:18px;align-items:center}.teacher-score-block{display:flex;flex-direction:column;text-align:right}.teacher-score-block b{font-size:42px;color:var(--green2)}.teacher-score-block span{color:var(--muted)}.auto-evidence{display:grid;grid-template-columns:minmax(180px,.32fr) minmax(0,1fr);gap:18px;align-items:center;margin:14px 0}.auto-result-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}.auto-result{display:grid;grid-template-columns:auto 1fr;gap:4px;padding:9px;border-radius:12px;border:1px solid var(--line);background:#0a110d}.auto-result b{grid-row:1/3;color:var(--muted)}.auto-result span{font-weight:900}.auto-result em{font-size:11px;font-style:normal}.auto-result.correct{border-color:rgba(57,255,136,.32)}.auto-result.correct em{color:#7dffac}.auto-result.incorrect{border-color:rgba(255,95,95,.3)}.auto-result.incorrect em{color:#ffaaa3}.review-content-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.manual-score{display:flex;align-items:center;gap:8px;margin-top:15px;font-weight:900}.manual-score .input{width:88px}.manual-score span{color:var(--muted)}.teacher-attachment{max-width:100%;max-height:420px;object-fit:contain;border-radius:14px}.feedback-editor{margin-top:14px}.review-actions{display:flex;gap:10px;flex-wrap:wrap;margin:12px 0}.export-panel{display:flex;justify-content:space-between;gap:18px;align-items:center}.empty-review{text-align:center;padding:45px 25px}
@media print{.topbar,.sidenav,.hybrid-toolbar,.hybrid-tabs,.hybrid-savebar,.submit-actions,.footer-actions{display:none!important}}
@media(max-width:980px){.hybrid-toolbar{grid-template-columns:1fr 1fr}.hybrid-toolbar>div:first-child{grid-column:1/-1}.pattern-first-ribbon{grid-template-columns:repeat(2,1fr)}.hybrid-student-head,.teacher-pilot-head{grid-template-columns:1fr 1fr}.hybrid-student-head>div:first-child,.teacher-pilot-head>div:first-child{grid-column:1/-1}.teacher-workspace{grid-template-columns:1fr}.submission-list{position:static;max-height:none}.teacher-summary{grid-template-columns:repeat(5,minmax(80px,1fr))}}
@media(max-width:700px){.hybrid-toolbar,.hybrid-student-head,.teacher-pilot-head,.teacher-control-grid,.hybrid-reasoning-grid,.hybrid-submit-panel,.auto-evidence,.review-content-grid{grid-template-columns:1fr}.pattern-first-ribbon,.hybrid-problem-grid{grid-template-columns:1fr}.hybrid-savebar{position:static;align-items:flex-start}.hybrid-savebar,.hybrid-savebar>div,.notebook-hero,.submission-card-head,.review-header,.export-panel{flex-direction:column}.hybrid-savebar,.notebook-hero,.review-header,.export-panel{display:flex}.submit-actions{justify-content:flex-start}.hybrid-submit-panel .feedback{grid-column:auto}.teacher-summary{grid-template-columns:repeat(2,1fr)}.auto-result-grid{grid-template-columns:repeat(2,1fr)}.feedback-card{grid-template-columns:1fr}.attachment-box{grid-template-columns:1fr}.submission-list-item{grid-template-columns:1fr auto}.submission-list-item strong{grid-column:1/-1}.cloud-status,.grading-chip{min-height:72px}}
.teacher-control-grid>.card,.hybrid-reasoning-grid>.card,.review-content-grid>.card{grid-column:auto}.teacher-review-pane{width:auto;max-width:none;margin:0;padding:0}.hybrid-inline-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}.hybrid-inline-actions .btn{flex:0 1 auto}
.teacher-workspace>.submission-list{grid-column:auto}

/* Pattern First Flagship Laboratory */
.flagship-toolbar{border-color:rgba(57,255,136,.28)}
.flagship-stage-shell{margin:18px 0}.flagship-stage-progress{height:8px;background:#101b14;border-radius:999px;overflow:hidden;margin-bottom:10px}.flagship-stage-progress span{display:block;height:100%;background:linear-gradient(90deg,var(--green),var(--green2));transition:width .3s ease}.flagship-stage-ribbon{display:grid;grid-template-columns:repeat(12,minmax(92px,1fr));gap:7px;overflow-x:auto;padding:7px;border:1px solid var(--line);border-radius:18px;background:rgba(5,8,7,.76)}.flagship-stage-ribbon button{min-width:92px;border:1px solid var(--line);border-radius:14px;padding:10px 8px;background:#09110d;color:var(--muted);text-align:left;cursor:pointer}.flagship-stage-ribbon button span{display:block;font-size:10px;color:var(--green2);font-weight:950}.flagship-stage-ribbon button b{display:block;color:var(--ink);font-size:13px}.flagship-stage-ribbon button small{font-size:9px}.flagship-stage-ribbon button.active{background:rgba(0,176,80,.2);border-color:var(--green);box-shadow:0 0 0 1px rgba(57,255,136,.2)}.flagship-stage-ribbon button.locked{opacity:.36;cursor:not-allowed}.flagship-stage-card{margin-top:16px;border-color:rgba(57,255,136,.2);overflow:hidden}.stage-lead{font-size:1.05rem;color:#c9d8cd;max-width:850px}.stage-navigation{display:grid;grid-template-columns:auto 1fr auto;gap:14px;align-items:center;margin:18px 0;padding:14px;border:1px solid var(--line);border-radius:18px;background:#07100b}.stage-navigation>div{text-align:center;display:flex;flex-direction:column}.stage-navigation small{color:var(--muted)}.stage-message{margin:16px 0}.launch-mystery{display:grid;grid-template-columns:120px 1fr;gap:22px;align-items:center;margin:26px 0;padding:26px;border:1px solid rgba(57,255,136,.22);border-radius:22px;background:radial-gradient(circle at left,rgba(0,176,80,.18),transparent 50%)}.mystery-mark{display:grid;place-items:center;width:100px;height:100px;border-radius:50%;font-size:60px;font-weight:950;color:var(--green2);border:1px solid rgba(57,255,136,.35);box-shadow:0 0 50px rgba(0,176,80,.15)}.callout{padding:16px 18px;border-left:4px solid var(--green);border-radius:10px;background:rgba(0,176,80,.08);margin:16px 0}.callout p{margin:.35rem 0 0;color:var(--muted)}.observation-chain{display:grid;gap:10px;margin:22px 0}.observation-chain>div,.giant-chain{padding:15px 18px;border:1px solid var(--line);border-radius:15px;background:#09110d;font-size:clamp(18px,3vw,32px);font-weight:900;letter-spacing:.03em;overflow-x:auto;white-space:nowrap}.two-col-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.two-col-fields label,.flagship-stage-card>label{display:block;font-weight:900;margin:14px 0}.two-col-fields .write,.flagship-stage-card>label .write,.flagship-stage-card>label .input{margin-top:8px}.invention-layout{display:grid;grid-template-columns:minmax(260px,.8fr) minmax(360px,1.2fr);gap:18px}.sketch-lab{padding:14px;border:1px solid var(--line);border-radius:16px;background:#08100c}.sketch-lab small{display:block;color:var(--muted)}.invention-canvas{width:100%;height:260px;display:block;border:1px dashed rgba(57,255,136,.35);border-radius:13px;background:#08100c;touch-action:none;cursor:crosshair}.locked-note{display:block;color:var(--gold);margin-top:6px}.compare-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:12px 0 22px}.compare-card{display:flex;flex-direction:column;gap:8px;padding:16px;border:1px solid var(--line);border-radius:15px;background:#09110d;cursor:pointer}.compare-card input{width:18px;height:18px}.compare-card strong{font-size:23px}.compare-card span{color:var(--muted);font-size:13px}.compare-card.selected{border-color:var(--green);background:rgba(0,176,80,.12)}.criteria-strip{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}.criteria-strip span,.focus-code-list span,.student-chip-list span,.mini-flags span{padding:7px 10px;border-radius:999px;background:rgba(57,255,136,.1);border:1px solid rgba(57,255,136,.22);font-size:12px;font-weight:850}.earned-reveal{text-align:center;padding:30px;border:1px solid rgba(57,255,136,.25);border-radius:22px;background:radial-gradient(circle at center,rgba(0,176,80,.15),transparent 65%)}.earned-reveal .btn{margin:22px auto}.earned-reveal p{color:var(--muted)}.reveal-theater{display:grid;place-items:center;gap:14px;margin:22px 0;padding:30px;border:1px solid rgba(57,255,136,.25);border-radius:22px;background:#07100b}.reveal-source{font-size:clamp(22px,4vw,42px);font-weight:900}.reveal-arrow{font-size:34px;color:var(--green2)}.math-expression{display:inline-flex;align-items:flex-start;font-variant-numeric:lining-nums;font-weight:950;line-height:1}.math-expression sup{font-size:.55em;line-height:1;vertical-align:super;margin-left:.06em;position:relative;top:-.06em}.reveal-expression{font-size:clamp(64px,10vw,110px);color:var(--green2);animation:revealPop .75s ease both}.reveal-theater.play .reveal-expression{animation:none}.reveal-theater.play .reveal-expression{animation:revealPop .75s ease both}@keyframes revealPop{0%{opacity:0;transform:scale(.72) translateY(18px)}100%{opacity:1;transform:scale(1) translateY(0)}}.meaning-prompt{display:grid;grid-template-columns:minmax(160px,.35fr) 1fr;gap:20px;align-items:center;padding:22px;border:1px solid var(--line);border-radius:18px;background:#09110d}.huge-expression{font-size:72px;color:var(--green2)}.formalization-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.vocab-card{padding:20px;border:1px solid var(--line);border-radius:18px;background:#09110d}.vocab-card .huge-expression{display:flex;margin-bottom:15px}.base-highlight{color:var(--green2)}.exponent-highlight{color:var(--gold)}.reading-line{font-size:22px;font-weight:900}.accessible-builder{display:grid;grid-template-columns:minmax(240px,.9fr) minmax(320px,1.1fr);gap:18px;align-items:center;margin-top:20px}.caret-note{grid-column:1/-1;display:flex;gap:12px;align-items:flex-start;padding:12px;border-radius:12px;background:rgba(247,209,84,.1)}.caret-note span{color:var(--muted)}.exponent-builder{display:grid;grid-template-columns:minmax(88px,1fr) 75px minmax(100px,1fr);gap:5px;align-items:start;max-width:440px;padding:14px;border:1px solid var(--line);border-radius:16px;background:#07100b}.exponent-builder.compact{max-width:360px}.exponent-builder label{display:flex;flex-direction:column;gap:5px;font-size:11px;color:var(--muted);margin:0}.builder-exp{transform:translateY(-8px)}.builder-exp input{font-size:16px}.builder-base input{font-size:22px}.builder-preview{display:flex;flex-direction:column;gap:7px;padding-left:12px;border-left:1px solid var(--line)}.builder-preview small{color:var(--muted)}.builder-preview .math-expression{font-size:34px;color:var(--green2)}.practice-summary{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0}.practice-summary span{padding:10px 13px;border-radius:999px;background:rgba(255,255,255,.05);border:1px solid var(--line);font-weight:900}.flagship-practice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.flagship-problem{position:relative;padding-top:46px}.problem-number{position:absolute;top:14px;left:14px;display:grid;place-items:center;width:27px;height:27px;border-radius:50%;background:var(--green);color:#001b0c;font-weight:950}.flagship-problem h3{font-size:17px;min-height:45px}.practice-actions{display:flex;align-items:center;gap:12px;margin-top:13px}.text-button{border:0;background:transparent;color:var(--green2);font-weight:900;cursor:pointer}.practice-feedback.visible{display:block}.choice-grid{display:grid;gap:8px}.choice-option{padding:12px;border:1px solid var(--line);border-radius:12px;background:#07100b;cursor:pointer}.choice-option.selected{border-color:var(--green);background:rgba(0,176,80,.12)}.choice-option input{margin-right:8px}.reasoning-lab{margin:22px 0;padding:22px;border:1px solid var(--line);border-radius:20px}.mistake-lab{background:linear-gradient(135deg,rgba(255,95,95,.08),rgba(255,255,255,.02))}.reality-lab{background:linear-gradient(135deg,rgba(247,209,84,.08),rgba(255,255,255,.02))}.application-lab{background:linear-gradient(135deg,rgba(0,176,80,.1),rgba(255,255,255,.02))}.student-work-display{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:16px 0}.student-work-display>div,.student-work-display blockquote{padding:15px;border:1px solid var(--line);border-radius:14px;background:#07100b}.student-work-display small{display:block;color:var(--muted)}.student-work-display b,.student-work-display .math-expression{display:block;margin-top:8px;font-size:28px}.student-work-display blockquote{grid-column:1/-1;margin:0;color:#d9e6dc}.repair-grid,.reality-input-grid,.application-input-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;align-items:center}.repair-grid>label,.reality-input-grid>label,.application-input-grid>label{display:flex;flex-direction:column;gap:6px;font-weight:900}.decision-row{display:flex;gap:20px;margin:14px 0}.decision-row label{padding:11px 18px;border:1px solid var(--line);border-radius:999px;background:#07100b}.confidence-control{display:block;margin:20px 0;font-weight:900}.confidence-control input{width:100%;margin-top:12px}.revision-compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.revision-compare>article{padding:18px;border:1px solid var(--line);border-radius:18px;background:#09110d}.revision-compare img,.notebook-sketch{max-width:100%;max-height:300px;object-fit:contain;border-radius:14px;margin-top:12px}.preserved-artifact{min-height:70px;padding:16px;border:1px dashed rgba(57,255,136,.35);border-radius:14px;background:#07100b;font-size:22px;font-weight:900;white-space:pre-wrap}.notebook-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.loading-card{text-align:center;padding:50px 20px}.loading-spinner{display:block;width:42px;height:42px;margin:0 auto 18px;border:4px solid rgba(57,255,136,.2);border-top-color:var(--green2);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.live-thinking-map{margin:16px 0}.thinking-map-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.thinking-map-card{position:relative;display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:center;padding:14px;border:1px solid var(--line);border-radius:15px;background:#09110d;color:var(--ink);text-align:left;cursor:pointer}.thinking-map-card.active{border-color:var(--green);background:rgba(0,176,80,.12)}.thinking-map-card>div{display:flex;flex-direction:column}.thinking-map-card small,.thinking-map-card em{color:var(--muted);font-size:11px}.thinking-map-card strong{color:var(--green2)}.stage-dot{width:12px;height:12px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 5px rgba(247,209,84,.1)}.stage-dot.stage-11{background:var(--green2)}.mini-flags{grid-column:2/-1;display:flex;flex-wrap:wrap;gap:5px}.mini-flags span{padding:4px 7px;font-size:9px;background:rgba(255,95,95,.1);border-color:rgba(255,95,95,.22)}.focus-code-list,.student-chip-list{display:flex;flex-wrap:wrap;gap:7px;margin:10px 0}.group-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.group-card h4{margin-bottom:4px}.orchestration-table-wrap{overflow-x:auto}.orchestration-table{width:100%;border-collapse:collapse}.orchestration-table th,.orchestration-table td{padding:13px;border-bottom:1px solid var(--line);vertical-align:top;text-align:left}.teacher-script-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px;margin-top:16px}.objective-override{max-width:300px}.focus-code-fieldset{display:flex;flex-wrap:wrap;gap:11px;margin:16px 0;padding:14px;border:1px solid var(--line);border-radius:14px}.focus-code-fieldset label{padding:7px 10px;border-radius:999px;background:#07100b}.pre-reveal-sentinel{display:none}
@media(max-width:980px){.flagship-stage-ribbon{grid-template-columns:repeat(12,105px)}.invention-layout,.accessible-builder{grid-template-columns:1fr}.formalization-grid{grid-template-columns:1fr 1fr}.compare-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.thinking-map-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.repair-grid,.reality-input-grid,.application-input-grid{grid-template-columns:1fr 1fr}.exponent-builder{max-width:none}.caret-note{grid-column:auto}}
@media(max-width:700px){.stage-navigation{grid-template-columns:1fr}.stage-navigation>div{order:-1}.two-col-fields,.invention-layout,.compare-grid,.formalization-grid,.flagship-practice-grid,.revision-compare,.notebook-grid,.thinking-map-grid,.group-grid,.teacher-script-grid,.repair-grid,.reality-input-grid,.application-input-grid,.student-work-display,.meaning-prompt{grid-template-columns:1fr}.launch-mystery{grid-template-columns:1fr;text-align:center}.mystery-mark{margin:auto}.accessible-builder{grid-template-columns:1fr}.exponent-builder{grid-template-columns:minmax(78px,1fr) 70px minmax(82px,.8fr);padding:10px}.builder-preview{padding-left:8px}.student-work-display blockquote{grid-column:auto}.huge-expression{font-size:58px}.invention-canvas{height:220px}.flagship-stage-card{padding:18px}.thinking-map-card{grid-template-columns:auto 1fr}.thinking-map-card>strong{grid-column:2}.mini-flags{grid-column:1/-1}}

/* Pattern First Interaction Standard v2.1 — stable, zero-jump feedback */
.flagship-problem .practice-feedback{
  min-height:4.1em;
  display:block;
  visibility:hidden;
  opacity:0;
  transition:opacity .16s ease;
}
.flagship-problem .practice-feedback.visible{
  visibility:visible;
  opacity:1;
}
.flagship-stage-card{scroll-margin-top:92px}
@media(max-width:600px){
  .flagship-problem .practice-feedback{min-height:5.2em}
}
@media(prefers-reduced-motion:reduce){
  .flagship-problem .practice-feedback{transition:none}
}

/* Pattern First Opening Laboratory — Course Launch + Unit 1 Mission 1 */
.opening-lab-shell{--opening-blue:#62b5ff;display:block}.opening-hero{margin-bottom:16px}.opening-controlbar{position:sticky;top:63px;z-index:15;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;margin:12px 0;padding:10px;border:1px solid var(--line);border-radius:18px;background:rgba(5,8,7,.93);backdrop-filter:blur(16px)}.opening-segment{display:flex;gap:7px;flex-wrap:wrap}.opening-segment button,.opening-tabs button{border:1px solid var(--line);border-radius:999px;background:#0d1511;color:var(--ink);padding:10px 13px;font-weight:900;cursor:pointer}.opening-segment button.active,.opening-tabs button.active{background:var(--green);color:#001b0c;border-color:var(--green)}.opening-student-head{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(230px,.7fr) minmax(220px,.55fr);gap:16px;align-items:end;padding:20px;margin:16px 0;border:1px solid rgba(57,255,136,.22);border-radius:22px;background:linear-gradient(135deg,rgba(0,176,80,.13),rgba(255,255,255,.025))}.opening-student-head h2{font-size:clamp(26px,4vw,44px);margin:8px 0}.opening-student-head label{font-weight:900}.opening-tabs{display:flex;gap:8px;overflow:auto;margin:14px 0;padding-bottom:3px}.opening-stage-shell{margin-top:12px}.opening-stage-ribbon{display:grid;grid-template-columns:repeat(var(--opening-stages,10),minmax(112px,1fr));gap:8px;overflow-x:auto;padding:9px 1px 13px}.opening-stage-ribbon button{display:flex;flex-direction:column;gap:4px;min-width:112px;min-height:82px;padding:10px;border:1px solid var(--line);border-radius:14px;background:#0b130f;color:var(--ink);text-align:left}.opening-stage-ribbon button span{color:var(--green2);font-size:11px;font-weight:950}.opening-stage-ribbon button small{color:var(--muted)}.opening-stage-ribbon button.active{border-color:var(--green);background:rgba(0,176,80,.16);box-shadow:0 0 0 2px rgba(0,176,80,.08)}.opening-stage-ribbon button.locked{opacity:.38}.opening-stage-card{padding:28px;margin:12px 0;border:1px solid rgba(255,255,255,.11);border-radius:26px;background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018));box-shadow:0 20px 55px rgba(0,0,0,.22);scroll-margin-top:150px}.opening-stage-card h2{font-size:clamp(28px,5vw,54px);line-height:1;margin:10px 0}.opening-stage-card>p,.stage-card-head p{color:#bfd1c5;font-size:17px;max-width:880px}.opening-stage-message{min-height:2.2em;margin-top:18px}.journey-principles{display:flex;gap:9px;flex-wrap:wrap;margin:18px 0}.journey-principles span{padding:10px 12px;border:1px solid rgba(57,255,136,.24);border-radius:999px;background:rgba(0,176,80,.08);font-weight:850}.scenario-card{padding:18px;border:1px solid rgba(98,181,255,.35);border-radius:18px;background:rgba(98,181,255,.08);font-size:18px}.response-comparison{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:18px 0}.response-card{position:relative;display:flex;flex-direction:column;gap:10px;padding:20px;border:1px solid var(--line);border-radius:18px;background:#09110d;cursor:pointer}.response-card.selected{border-color:var(--green);background:rgba(0,176,80,.12)}.response-card input{position:absolute;right:15px;top:15px;width:21px;height:21px}.response-card span{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.1em;font-weight:900}.response-card b{font-size:24px}.work-scene{position:relative;min-height:430px;margin:18px 0;border:1px solid rgba(57,255,136,.26);border-radius:26px;overflow:hidden;background:linear-gradient(145deg,#163321,#0a160f)}.event-desk:before{content:"";position:absolute;left:5%;right:5%;top:12%;bottom:10%;border-radius:24px;background:linear-gradient(155deg,#4b321e,#1c120a);box-shadow:inset 0 0 0 4px rgba(255,255,255,.05),0 35px 60px rgba(0,0,0,.35);transform:perspective(900px) rotateX(4deg)}.desk-title{position:absolute;left:50%;top:4%;transform:translateX(-50%);z-index:2;font-weight:950;letter-spacing:.13em;color:#d9f8e4}.desk-lines{position:absolute;inset:18% 12%;background:repeating-linear-gradient(90deg,transparent 0 44px,rgba(255,255,255,.025) 45px),repeating-linear-gradient(0deg,transparent 0 44px,rgba(255,255,255,.02) 45px);border-radius:18px;pointer-events:none}.scene-hotspot{position:absolute;z-index:3;width:min(27%,210px);min-height:116px;transform:translate(-50%,-50%) rotate(var(--tilt,0deg));padding:15px;border:2px solid rgba(255,255,255,.18);border-radius:15px;background:#f9fbf7;color:#07110b;text-align:left;box-shadow:0 14px 24px rgba(0,0,0,.3);cursor:pointer}.scene-hotspot:nth-of-type(2){--tilt:-4deg}.scene-hotspot:nth-of-type(3){--tilt:3deg}.scene-hotspot:nth-of-type(4){--tilt:2deg}.scene-hotspot:nth-of-type(5){--tilt:-2deg}.scene-hotspot small{display:block;margin-top:9px;color:#536158}.scene-hotspot.selected{outline:5px solid rgba(57,255,136,.35);border-color:var(--green);background:#effff4}.hotspot-summary{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:13px;border:1px solid var(--line);border-radius:14px;background:#09110d;margin-bottom:14px}.hotspot-summary span{color:var(--muted)}.evidence-builder{display:grid;grid-template-columns:minmax(260px,.75fr) minmax(0,1.25fr);gap:18px}.evidence-builder>div{display:grid;gap:9px}.evidence-builder>div label{padding:13px;border:1px solid var(--line);border-radius:12px;background:#09110d}.response-mode-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin:16px 0}.response-mode{padding:15px;border:1px solid var(--line);border-radius:14px;background:#09110d;color:var(--ink);font-weight:900}.response-mode.active{border-color:var(--green);background:rgba(0,176,80,.15)}.warehouse-scene{margin:18px 0;border:1px solid rgba(57,255,136,.28);border-radius:24px;overflow:hidden;background:linear-gradient(#14251a,#08110c)}.warehouse-header{display:flex;justify-content:space-between;gap:12px;align-items:center;padding:15px 18px;background:#e7f7ec;color:#07110b}.warehouse-header span{font-weight:950;letter-spacing:.1em}.warehouse-counts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;padding:22px}.warehouse-counts article{text-align:center;padding:14px;border:1px solid var(--line);border-radius:16px;background:#09110d}.box-stack{display:grid;grid-template-columns:repeat(4,1fr);gap:4px;position:relative;min-height:75px;align-content:center}.box-stack i,.array-visual i,.leftover-products i,.mini-array i{display:block;aspect-ratio:1;border-radius:4px;background:linear-gradient(145deg,#39ff88,#00883f);box-shadow:inset -3px -3px 0 rgba(0,0,0,.18)}.box-stack em{position:absolute;right:0;bottom:0;padding:4px 6px;border-radius:7px;background:var(--gold);color:#07110b;font-weight:950}.scene-question{text-align:center;color:#bcd1c3;padding:0 18px 20px}.array-lab{display:grid;grid-template-columns:minmax(280px,.75fr) minmax(0,1.25fr);gap:20px;margin:18px 0;padding:20px;border:1px solid rgba(57,255,136,.25);border-radius:22px;background:#07100b}.array-controls{display:flex;flex-direction:column;gap:14px}.number-choice-row{display:flex;gap:8px;flex-wrap:wrap}.number-choice-row button{width:62px;height:52px;border:1px solid var(--line);border-radius:13px;background:#101914;color:var(--ink);font-size:20px;font-weight:950}.number-choice-row button.active{background:var(--green);color:#001b0c}.array-controls input[type=range]{width:100%}.array-measure{display:grid;gap:7px}.array-measure span{padding:8px 10px;border-radius:10px;background:#101914}.array-measure .complete{color:var(--green2)}.array-measure .leftover{color:var(--gold)}.array-visual-wrap{display:flex;min-height:340px;flex-direction:column;justify-content:center;align-items:center;padding:18px;border-radius:18px;background:#f5faf6;color:#07110b}.array-visual{display:grid;grid-template-columns:repeat(var(--array-cols),minmax(15px,31px));gap:5px;max-width:100%;max-height:260px;overflow:auto;padding:7px}.array-visual i{width:26px}.array-visual.complete i{background:linear-gradient(145deg,#22db73,#007537)}.leftover-products{display:flex;gap:5px;margin-top:10px;padding:9px;border:2px dashed #e4a82a;border-radius:12px}.leftover-products i{width:26px;background:linear-gradient(145deg,#ffd76a,#c98400)}.array-discovery-log{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.array-discovery-log article{padding:13px;border:1px solid var(--line);border-radius:14px;background:#09110d}.array-discovery-log article>div{display:flex;justify-content:space-between}.array-discovery-log article b{font-size:26px;color:var(--green2)}.array-discovery-log p{color:var(--muted);font-size:13px}.layout-prediction-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px;margin:18px 0}.layout-prediction-grid label{display:grid;gap:7px;padding:15px;border:1px solid var(--line);border-radius:14px;background:#09110d}.layout-prediction-grid small{color:var(--muted)}.factor-vocab-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.factor-vocab-grid .vocab-card b{color:var(--green2);font-size:17px}.array-classification-table{display:grid;gap:8px;margin:18px 0}.array-classification-table>div{display:grid;grid-template-columns:70px 1fr 120px;gap:14px;align-items:center;padding:12px;border:1px solid var(--line);border-radius:12px;background:#09110d}.array-classification-table b{font-size:25px}.array-classification-table span{color:var(--muted)}.array-classification-table strong{color:var(--green2)}.tree-toolbar{display:flex;gap:12px;justify-content:space-between;align-items:end;flex-wrap:wrap}.factor-tree-display{display:flex;justify-content:center;align-items:center;gap:9px;flex-wrap:wrap;min-height:180px;margin:18px 0;padding:24px;border:1px solid var(--line);border-radius:20px;background:#07100b}.tree-leaf{display:flex;flex-direction:column;align-items:center;justify-content:center;width:104px;height:104px;border:2px solid var(--gold);border-radius:50%;background:#18160b;color:var(--ink);font-size:30px;font-weight:950}.tree-leaf small{font-size:10px;color:#e8d991}.tree-leaf.prime{border-color:var(--green);background:rgba(0,176,80,.16)}.tree-leaf.prime small{color:var(--green2)}.tree-leaf.selected{box-shadow:0 0 0 6px rgba(247,209,84,.13)}.factor-option-row{display:flex;align-items:center;justify-content:center;gap:9px;flex-wrap:wrap}.factor-option-row p{width:100%;text-align:center}.factor-option-row button{padding:12px 16px;border:1px solid var(--line);border-radius:12px;background:#101914;color:var(--ink);font-weight:900}.tree-complete{text-align:center;padding:18px;border:1px solid rgba(57,255,136,.26);border-radius:16px;background:rgba(0,176,80,.08)}.tree-complete h3{font-size:30px;color:var(--green2)}.tree-history{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}.tree-history span{padding:7px 10px;border-radius:999px;background:#101914;color:var(--muted)}.factor-practice-grid .flagship-problem h3{min-height:unset}.display-preview{display:grid;grid-template-columns:minmax(200px,.55fr) 1fr;gap:18px;align-items:center;margin:16px 0}.mini-array{display:grid;grid-template-columns:repeat(var(--mini-cols),minmax(8px,22px));gap:4px;padding:10px;border:1px solid var(--line);border-radius:13px;background:#f4faf6}.mini-array i{width:19px}.pallet-extension{background:linear-gradient(135deg,rgba(98,181,255,.09),rgba(255,255,255,.02))}.pallet-layout{display:grid;grid-template-columns:minmax(250px,.65fr) minmax(300px,1.35fr);gap:18px;align-items:center}.pallet-controls{display:grid;gap:13px}.pallet-controls label{display:grid;grid-template-columns:80px 1fr 46px;align-items:center;gap:8px}.pallet-perspective{display:grid;place-items:center;min-height:330px;perspective:900px;overflow:hidden;border:1px solid var(--line);border-radius:18px;background:radial-gradient(circle,#153122,#07100b 70%)}.pallet-stack{position:relative;width:320px;height:250px;transform-style:preserve-3d;transform:rotateX(58deg) rotateZ(var(--pallet-rot));transition:transform .2s}.pallet-stack i{position:absolute;width:34px;height:34px;border:1px solid rgba(255,255,255,.28);border-radius:5px;background:linear-gradient(145deg,#39ff88,#007438);box-shadow:inset -7px -7px 0 rgba(0,0,0,.18);transform:translate3d(calc(var(--x)*36px - var(--pallet-cols)*18px + 160px),calc(var(--y)*36px - var(--pallet-rows)*18px + 125px),calc(var(--z)*38px))}.pallet-summary{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:12px;padding:12px;border-radius:12px;background:#09110d}.pallet-summary span{color:var(--muted)}.opening-homework-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.opening-homework-card{position:relative;padding-top:48px}.homework-number{position:absolute;left:13px;top:13px;display:grid;place-items:center;width:29px;height:29px;border-radius:50%;background:#0b6f38;color:white;font-weight:950}.opening-homework-card .write{min-height:110px}.opening-homework-card .practice-feedback{display:block;visibility:hidden;min-height:4.2em;opacity:0}.opening-homework-card .practice-feedback.visible{visibility:visible;opacity:1}.submission-preview{display:flex;justify-content:space-between;gap:16px;align-items:center;margin:18px 0;padding:18px;border:1px solid rgba(57,255,136,.26);border-radius:17px;background:rgba(0,176,80,.08)}.review-evidence-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.review-evidence-grid article{padding:14px;border:1px solid var(--line);border-radius:14px;background:#09110d}.review-evidence-grid p{color:var(--muted);white-space:pre-wrap}.rubric-grid{display:grid;grid-template-columns:repeat(5,minmax(100px,1fr));gap:9px;margin:13px 0}.rubric-grid label{display:grid;grid-template-columns:1fr auto;gap:6px;align-items:end;padding:10px;border:1px solid var(--line);border-radius:12px}.rubric-grid label .input{grid-column:1}.rubric-grid small{grid-column:2;grid-row:2}.opening-homework-card{scroll-margin-top:152px}.flagship-problem{scroll-margin-top:152px}
@media(max-width:980px){.opening-student-head{grid-template-columns:1fr 1fr}.opening-student-head .submission-status{grid-column:1/-1}.response-mode-grid,.warehouse-counts,.array-discovery-log,.factor-vocab-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.array-lab,.evidence-builder,.pallet-layout{grid-template-columns:1fr}.rubric-grid{grid-template-columns:repeat(3,minmax(100px,1fr))}}
@media(max-width:700px){.opening-controlbar{top:62px}.opening-student-head,.response-comparison,.layout-prediction-grid,.opening-homework-list,.review-evidence-grid,.display-preview{grid-template-columns:1fr}.opening-student-head .submission-status{grid-column:auto}.opening-stage-card{padding:18px}.work-scene{min-height:570px}.scene-hotspot{width:42%;min-height:110px}.scene-hotspot:nth-of-type(2){left:28%!important;top:22%!important}.scene-hotspot:nth-of-type(3){left:72%!important;top:22%!important}.scene-hotspot:nth-of-type(4){left:28%!important;top:68%!important}.scene-hotspot:nth-of-type(5){left:72%!important;top:68%!important}.response-mode-grid,.warehouse-counts,.array-discovery-log,.factor-vocab-grid{grid-template-columns:1fr 1fr}.array-classification-table>div{grid-template-columns:50px 1fr}.array-classification-table strong{grid-column:2}.array-visual-wrap{min-height:260px}.pallet-perspective{min-height:280px}.pallet-stack{transform:scale(.78) rotateX(58deg) rotateZ(var(--pallet-rot))}.rubric-grid{grid-template-columns:1fr 1fr}.submission-preview{align-items:flex-start;flex-direction:column}}
@media(max-width:480px){.response-mode-grid,.warehouse-counts,.array-discovery-log,.factor-vocab-grid,.rubric-grid{grid-template-columns:1fr}.opening-stage-ribbon{grid-template-columns:repeat(10,105px)}.scene-hotspot{width:45%;font-size:12px}.pallet-stack{transform:scale(.62) rotateX(58deg) rotateZ(var(--pallet-rot))}.array-visual i,.leftover-products i{width:21px}.opening-homework-card .practice-feedback{min-height:5.2em}}
@media(prefers-reduced-motion:reduce){.pallet-stack,.opening-homework-card .practice-feedback{transition:none}}

/* ================================================================
   Pattern First Complete Unit 1 Laboratory
   ================================================================ */
.u1lab-shell{--u1-line:rgba(255,255,255,.11);--u1-panel:rgba(12,22,16,.88);--u1-soft:rgba(255,255,255,.055);display:grid;gap:18px}
.u1lab-hero{background:linear-gradient(135deg,rgba(0,176,80,.24),rgba(2,8,5,.94)),radial-gradient(circle at 85% 20%,rgba(57,255,136,.22),transparent 34%)}
.u1lab-controlbar{display:flex;align-items:end;justify-content:space-between;gap:14px;flex-wrap:wrap;padding:14px;border:1px solid var(--u1-line);border-radius:20px;background:rgba(4,10,7,.9);position:sticky;top:72px;z-index:12;backdrop-filter:blur(16px)}
.u1lab-segment{display:flex;gap:6px;padding:5px;border-radius:15px;background:#0a110d;border:1px solid var(--line)}
.u1lab-segment button,.u1lab-tabs button,.u1lab-stage-ribbon button{border:0;background:transparent;color:var(--muted);font:inherit;font-weight:850;cursor:pointer}
.u1lab-segment button{padding:10px 13px;border-radius:11px;min-height:44px}
.u1lab-segment button.active{background:var(--green);color:#001b0c}
.u1lab-selects{display:flex;gap:10px;flex-wrap:wrap;flex:1;justify-content:flex-end}
.u1lab-selects label,.u1lab-controlbar label{display:grid;gap:5px;color:var(--muted);font-size:12px;font-weight:850;min-width:min(340px,100%)}
.u1lab-student-head{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:18px;align-items:center;padding:18px 22px;border-radius:22px;background:linear-gradient(135deg,rgba(255,255,255,.06),rgba(0,176,80,.08));border:1px solid var(--u1-line)}
.u1lab-student-head h2{font-size:clamp(26px,4vw,46px);margin:5px 0}.u1lab-student-head p{margin:0;color:var(--muted)}
.u1lab-status{display:grid;gap:3px;min-width:210px;padding:14px 18px;border-radius:16px;background:#07100b;border:1px solid var(--line)}
.u1lab-status small,.u1lab-status span{color:var(--muted)}.u1lab-status b{font-size:19px;color:var(--green2)}
.u1lab-tabs{display:flex;gap:8px;overflow-x:auto;padding:4px;border-bottom:1px solid var(--u1-line);scrollbar-width:thin}
.u1lab-tabs button{white-space:nowrap;padding:11px 14px;border-radius:12px;min-height:44px}.u1lab-tabs button.active{background:rgba(0,176,80,.18);color:var(--white);outline:1px solid rgba(57,255,136,.3)}
.u1lab-tabs.teacher{justify-content:center;flex-wrap:wrap}
.u1lab-stage-shell{display:grid;gap:8px}.u1lab-stage-ribbon{display:grid;grid-template-columns:repeat(9,minmax(95px,1fr));gap:6px;overflow-x:auto;padding:2px 2px 10px;scrollbar-width:thin}
.u1lab-stage-ribbon button{display:grid;place-items:center;gap:5px;padding:9px 7px;border-radius:13px;border:1px solid var(--line);background:#0a110d;min-height:68px;font-size:11px;line-height:1.15}
.u1lab-stage-ribbon button span{display:grid;place-items:center;width:22px;height:22px;border-radius:50%;background:#17201a;color:var(--muted)}
.u1lab-stage-ribbon button.earned{color:#dcefe2;border-color:rgba(0,176,80,.34)}.u1lab-stage-ribbon button.earned span{background:rgba(0,176,80,.24);color:var(--green2)}
.u1lab-stage-ribbon button.active{background:linear-gradient(135deg,rgba(0,176,80,.26),rgba(57,255,136,.08));color:#fff;outline:2px solid rgba(57,255,136,.4)}
.u1lab-stage-card{padding:clamp(18px,3vw,32px);border:1px solid rgba(57,255,136,.2);border-radius:26px;background:linear-gradient(145deg,rgba(11,19,14,.97),rgba(5,10,7,.97));box-shadow:var(--shadow);min-width:0}
.u1lab-stage-card h2{font-size:clamp(25px,4vw,43px);margin:7px 0 10px}.u1lab-stage-card .lead{max-width:840px;color:#c9d9cf;font-size:17px}
.u1lab-stage-nav{position:sticky;bottom:10px;z-index:8;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;margin-top:24px;padding:12px;border-radius:17px;background:rgba(4,9,6,.94);border:1px solid var(--line);backdrop-filter:blur(15px)}
.u1lab-stage-nav span{text-align:center;color:var(--muted);font-size:12px}.u1lab-stage-nav button:disabled{opacity:.35;cursor:not-allowed}
.u1lab-stage-message:empty{display:none}.u1lab-safe-note{padding:12px 14px;border-left:4px solid var(--green);background:rgba(0,176,80,.08);border-radius:0 12px 12px 0;color:#cfe4d6}
.u1lab-brief-grid,.u1lab-guide-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:18px 0}
.u1lab-brief-grid article,.u1lab-guide-grid article,.u1lab-extension{padding:16px;border:1px solid var(--line);border-radius:16px;background:var(--u1-soft)}
.u1lab-brief-grid small{color:var(--green2);font-weight:900;text-transform:uppercase;letter-spacing:.08em}.u1lab-brief-grid p{margin:7px 0 0}
.u1lab-field{display:grid;gap:7px;margin:15px 0;font-weight:850}.u1lab-field textarea{min-height:120px}
.u1lab-engine{margin:18px 0;padding:clamp(14px,3vw,24px);border:1px solid var(--line);border-radius:22px;background:radial-gradient(circle at top right,rgba(0,176,80,.11),transparent 34%),#07100b;min-width:0}
.u1lab-compare-responses{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px;margin-bottom:16px}.u1lab-compare-responses article{padding:18px;border:1px solid var(--line);border-radius:16px;background:#101714}.u1lab-compare-responses p{font-size:19px}
.u1lab-created-scene{position:relative;min-height:360px;overflow:hidden;margin:18px 0;border-radius:23px;border:1px solid rgba(255,255,255,.12);background:linear-gradient(180deg,#dfeee7 0 28%,#b8c9be 28% 31%,#7b8b80 31% 100%);color:#06100a;box-shadow:inset 0 -80px 100px rgba(0,0,0,.18)}
.u1lab-created-scene:before{content:"";position:absolute;left:5%;right:5%;top:9%;height:16%;background:linear-gradient(90deg,#a6d8ff,#f3fcff 48%,#a6d8ff);border:10px solid #56655b;border-radius:8px;box-shadow:0 12px 0 #455149}
.u1lab-created-scene:after{content:"";position:absolute;left:0;right:0;bottom:0;height:34%;background:repeating-linear-gradient(90deg,#59665d 0 2px,transparent 2px 86px),repeating-linear-gradient(0deg,#59665d 0 2px,transparent 2px 62px),#738177;opacity:.8}
.scene-object{position:absolute;z-index:3;display:grid;gap:3px;min-width:150px;max-width:190px;padding:13px;border-radius:15px;border:2px solid rgba(4,16,9,.35);background:rgba(255,255,255,.9);color:#122019;text-align:left;box-shadow:0 12px 28px rgba(0,0,0,.25);cursor:pointer;transition:.16s transform,.16s box-shadow}
.scene-object:hover,.scene-object:focus-visible{transform:translateY(-3px);box-shadow:0 16px 32px rgba(0,0,0,.33)}.scene-object.selected{outline:4px solid var(--green);background:#eefff4}.scene-object span{font-size:13px}.scene-object.s1{left:6%;top:42%}.scene-object.s2{right:7%;top:38%}.scene-object.s3{left:12%;bottom:8%}.scene-object.s4{right:12%;bottom:8%}
.scene-person{position:absolute;z-index:2;left:46%;top:39%;font-size:52px;color:#2b3d31}.scene-person i{display:block;width:54px;height:100px;background:#173e27;border-radius:24px 24px 13px 13px;margin:-10px auto}
.u1lab-evidence-list{display:flex;gap:7px;flex-wrap:wrap}.u1lab-evidence-list button{border:1px solid var(--line);border-radius:999px;padding:9px 12px;background:#0b140e;color:#d7e6dc;font-weight:800}.u1lab-evidence-list button.selected{background:rgba(0,176,80,.22);border-color:var(--green);color:#fff}
.u1lab-instruction{color:var(--muted)}
.u1lab-number-choices,.u1lab-token-bank,.u1lab-sort-bank{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}.chip{border:1px solid var(--line);border-radius:999px;padding:10px 14px;background:#101714;color:#eaf7ef;font-weight:900;cursor:pointer;min-height:44px}.chip.active,.chip.selected{background:var(--green);color:#001b0c}.chip.placed{opacity:.58}
.u1-array-grid{display:grid;grid-template-columns:repeat(var(--cols),minmax(18px,36px));gap:4px;width:max-content;max-width:100%;margin:18px auto;padding:12px;border-radius:16px;background:#111b14;overflow:auto}.u1-array-grid i{display:block;aspect-ratio:1;border-radius:5px;background:linear-gradient(135deg,var(--green),var(--green2));box-shadow:inset 0 0 0 1px rgba(0,0,0,.2)}.u1-array-grid i.leftover{background:#f7d154}
.u1lab-attempts{display:flex;gap:7px;flex-wrap:wrap;margin-top:12px}.u1lab-attempts span{padding:7px 10px;border-radius:9px;background:rgba(255,255,255,.07);font-size:13px}
.u1lab-bundle-controls,.u1lab-factor-controls,.u1lab-model-builder,.u1lab-rubric{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin:13px 0}.u1lab-bundle-controls label,.u1lab-factor-controls label,.u1lab-model-builder label,.u1lab-rubric label{display:grid;gap:5px;font-size:12px;color:var(--muted);font-weight:850}
.u1lab-bundle-result,.u1lab-monomial-pair,.u1lab-model-panels{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:14px 0}.u1lab-bundle-result article,.u1lab-monomial-pair article,.u1lab-model-panels article{display:grid;gap:5px;padding:18px;border-radius:17px;border:1px solid var(--line);background:#101714}.u1lab-bundle-result b,.u1lab-monomial-pair b,.u1lab-model-panels b{font-size:clamp(24px,4vw,40px);color:var(--green2)}
.u1lab-live-model{display:grid;place-items:center;gap:7px;padding:20px;margin:15px 0;border:1px solid rgba(57,255,136,.26);border-radius:18px;background:rgba(0,176,80,.08)}.u1lab-live-model b{font-size:clamp(28px,5vw,52px)}
.u1lab-anatomy{display:flex;gap:8px;flex-wrap:wrap;margin:13px 0}.u1lab-anatomy button{border:1px solid var(--line);border-radius:12px;padding:12px;background:#101714;color:#fff;font-weight:850;min-height:44px}
.u1lab-recovery-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:11px;margin:14px 0}.u1lab-recovery-card{display:grid;gap:6px;text-align:left;padding:17px;border-radius:16px;border:1px solid var(--line);background:#101714;color:#eaf7ef;min-height:95px}.u1lab-recovery-card.active{outline:2px solid var(--green);background:rgba(0,176,80,.15)}.u1lab-recovery-card span{color:var(--muted)}
.u1lab-token-build{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:17px;border-radius:16px;background:#101714;border:1px solid var(--line)}.u1lab-token-build b{font-size:24px}
.u1lab-sort-bins{display:grid;grid-template-columns:repeat(4,minmax(140px,1fr));gap:9px;overflow-x:auto}.u1lab-sort-bins button{display:grid;gap:8px;text-align:left;min-height:110px;padding:14px;border:1px dashed rgba(57,255,136,.4);border-radius:15px;background:#101714;color:#fff}.u1lab-sort-bins span{color:var(--green2)}
.u1lab-term-lanes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin:13px 0}.u1lab-term-lanes span{padding:14px;border-radius:13px;background:rgba(0,176,80,.1);border:1px solid rgba(0,176,80,.25);font-weight:850}.u1lab-model-panels article.flipped{outline:2px solid #f7d154}
.u1lab-assessment-calm{display:grid;grid-template-columns:auto 1fr;gap:11px;align-items:center;padding:16px;border-radius:17px;background:#101714}.u1lab-assessment-calm span{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--green);color:#001b0c;font-weight:950}.u1lab-assessment-calm p{margin:0}
.u1lab-3d{margin:17px 0;padding:13px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.035)}.u1lab-3d summary{cursor:pointer;font-weight:900;color:var(--green2)}
.u1-3d-stage{height:260px;display:grid;place-items:center;perspective:900px;overflow:hidden}.u1-3d-stack{position:relative;width:180px;height:130px;transform-style:preserve-3d;transform:rotateX(var(--rx)) rotateY(var(--ry));transition:.25s transform}.u1-3d-stack i{position:absolute;width:38px;height:38px;left:calc(var(--x)*40px);top:calc(var(--y)*40px);transform:translateZ(calc(var(--z)*40px));background:linear-gradient(135deg,#1cce68,#077638);border:2px solid #043f1e;box-shadow:inset -8px -8px 12px rgba(0,0,0,.25)}
.u1lab-formal-card,.u1lab-direct-teach{padding:19px;border:1px solid rgba(57,255,136,.25);border-radius:18px;background:rgba(0,176,80,.08);margin:15px 0}.u1lab-direct-teach b{color:var(--green2)}
.u1lab-notes{display:grid;grid-template-columns:repeat(auto-fit,minmax(235px,1fr));gap:12px}.u1lab-notes article{padding:16px;border-radius:17px;border:1px solid var(--line);background:#101714}.u1lab-notes label{display:grid;gap:5px;margin:11px 0}
.u1lab-problem-list{display:grid;gap:13px}.u1lab-problem-card{padding:17px;border:1px solid var(--line);border-radius:18px;background:#0c1510;min-width:0;scroll-margin-top:104px}.u1lab-problem-card header{display:flex;justify-content:space-between;gap:10px;align-items:center;color:var(--green2);font-weight:900}.u1lab-problem-card header small{color:var(--muted);font-size:11px}.u1lab-question{font-size:16px;line-height:1.5}.u1lab-problem-card label{display:grid;gap:6px}.u1lab-check-row{display:flex;align-items:center;gap:11px;flex-wrap:wrap;margin-top:10px}.text-btn{border:0;background:transparent;color:var(--green2);font-weight:850;text-decoration:underline;text-underline-offset:3px;cursor:pointer;padding:9px}.u1lab-problem-card .feedback{min-height:54px;margin-top:10px;display:flex;align-items:center}.u1lab-problem-card .feedback:empty{visibility:hidden;padding:10px 12px;border:1px solid transparent}.u1lab-problem-card .feedback:not(:empty){visibility:visible}
.u1lab-homework-legend{display:flex;gap:12px;flex-wrap:wrap;padding:13px;margin:13px 0;border-radius:15px;background:#101714}.u1lab-homework-legend span{display:flex;align-items:center;gap:7px;font-size:12px}.u1lab-homework-legend i{width:14px;height:14px;border-radius:4px}.u1lab-homework-legend .odd{background:var(--green)}.u1lab-homework-legend .even{background:#707b73}.u1lab-homework-legend .work{background:#f7d154}
.u1lab-work-area{margin-top:14px;border-top:1px solid var(--line);padding-top:12px}.u1lab-work-toggle{width:100%;display:flex;align-items:center;justify-content:space-between;gap:10px;text-align:left;border:1px solid rgba(247,209,84,.35);border-radius:14px;padding:12px 14px;background:rgba(247,209,84,.08);color:#fff;font-weight:900;cursor:pointer}.u1lab-work-toggle small{color:#d8cc95;font-size:11px}.u1lab-work-panel{display:none;padding:13px 3px 2px}.u1lab-work-panel.open{display:block}.u1lab-work-panel nav{display:flex;gap:6px;margin-bottom:10px}.u1lab-work-panel nav button{border:1px solid var(--line);border-radius:999px;padding:8px 13px;background:#101714;color:#cbdad0;font-weight:850}.u1lab-work-panel nav button.active{background:#f7d154;color:#2c2604}.u1lab-work-mode{display:none}.u1lab-work-mode.active{display:block}.u1lab-work-text{min-height:150px}.u1-work-canvas{width:100%;display:block;border:2px solid #bec9c1;border-radius:12px;background:#fff;touch-action:none;cursor:crosshair}.u1lab-photo-drop{display:grid;place-items:center;min-height:130px;border:2px dashed rgba(255,255,255,.25);border-radius:14px;background:#101714;text-align:center;padding:18px}.u1lab-photo-drop input{max-width:100%}.u1lab-work-mode img,.u1lab-notebook img{max-width:100%;max-height:420px;object-fit:contain;border-radius:12px;border:1px solid var(--line);margin-top:10px}.u1lab-work-saved{font-size:11px;color:var(--muted)}
.u1lab-analysis-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}.u1lab-analysis-grid article{padding:18px;border-radius:18px;border:1px solid var(--line);background:#101714}.u1lab-analysis-grid label{display:grid;gap:5px;margin-top:12px}.u1lab-analysis-grid textarea{min-height:95px}.u1lab-analysis-grid blockquote{padding:13px;margin:12px 0;border-left:4px solid #f7d154;background:rgba(247,209,84,.07);color:#f0e7c4}
.u1lab-reflection-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.u1lab-reflection-grid label{display:grid;gap:7px}.u1lab-reflection-grid textarea{min-height:105px}.u1lab-submit-actions{display:flex;gap:9px;flex-wrap:wrap;margin:16px 0}.danger-btn{border:1px solid rgba(255,95,95,.45);background:rgba(255,95,95,.12);color:#ffb4b4;border-radius:12px;padding:11px 14px;font-weight:900}
.u1lab-map{padding:24px}.u1lab-map-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(235px,1fr));gap:12px}.u1lab-map-card{display:grid;gap:7px;text-align:left;min-height:190px;padding:18px;border-radius:19px;border:1px solid var(--line);background:linear-gradient(145deg,#101714,#080e0a);color:#eaf7ef;cursor:pointer}.u1lab-map-card.current{outline:2px solid var(--green)}.u1lab-map-card span{color:var(--green2);font-size:12px;font-weight:900;text-transform:uppercase}.u1lab-map-card h3{margin:0;font-size:21px}.u1lab-map-card p{color:var(--muted);margin:0}.mini-meter{height:8px;background:#17201a;border-radius:999px;overflow:hidden;margin-top:auto}.mini-meter i{display:block;height:100%;background:linear-gradient(90deg,var(--green),var(--green2))}
.u1lab-notebook section{border:1px solid var(--line);border-radius:16px;padding:14px;margin:12px 0}.u1lab-notebook article{padding:12px;background:#101714;border-radius:12px;margin:8px 0}.u1lab-version{padding:17px;border-radius:16px;border:1px solid var(--line);background:#101714;margin:12px 0}
.u1lab-teacher-evidence{display:grid;grid-template-columns:280px minmax(0,1fr);gap:16px;align-items:start}.u1lab-teacher-evidence aside{position:sticky;top:150px;display:grid;gap:10px}.u1lab-teacher-evidence aside label{display:grid;gap:5px}.u1lab-student-evidence-list{display:grid;gap:6px}.u1lab-student-evidence-list button{display:grid;gap:3px;text-align:left;padding:12px;border:1px solid var(--line);border-radius:13px;background:#101714;color:#fff}.u1lab-student-evidence-list button.active{background:rgba(0,176,80,.16);border-color:var(--green)}.u1lab-student-evidence-list span{color:var(--muted);font-size:11px}
.u1lab-teacher-groups{display:grid;grid-template-columns:repeat(auto-fit,minmax(205px,1fr));gap:11px}.u1lab-teacher-groups article{padding:16px;border:1px solid var(--line);border-radius:16px;background:#101714}.u1lab-teacher-groups h3{color:var(--green2);font-size:17px}.u1lab-settings{display:grid;gap:12px;max-width:650px}.u1lab-settings label{display:grid;gap:6px}
@media(max-width:820px){.u1lab-controlbar{top:66px}.u1lab-student-head{grid-template-columns:1fr}.u1lab-status{min-width:0}.u1lab-brief-grid,.u1lab-guide-grid,.u1lab-analysis-grid,.u1lab-reflection-grid{grid-template-columns:1fr}.u1lab-created-scene{min-height:470px}.scene-object{min-width:135px;max-width:155px}.scene-object.s1{left:4%;top:31%}.scene-object.s2{right:4%;top:31%}.scene-object.s3{left:4%;bottom:8%}.scene-object.s4{right:4%;bottom:8%}.scene-person{left:43%;top:48%}.u1lab-sort-bins{grid-template-columns:repeat(4,160px)}.u1lab-teacher-evidence{grid-template-columns:1fr}.u1lab-teacher-evidence aside{position:static}.u1lab-stage-nav{grid-template-columns:1fr 1fr}.u1lab-stage-nav span{grid-column:1/-1;grid-row:1}}
@media(max-width:520px){.u1lab-shell{gap:12px}.u1lab-controlbar{position:relative;top:auto;padding:10px}.u1lab-segment{width:100%;display:grid;grid-template-columns:1fr 1fr}.u1lab-selects{display:grid;width:100%;justify-content:stretch}.u1lab-selects label{min-width:0}.u1lab-student-head{padding:15px}.u1lab-tabs{margin-inline:-2px}.u1lab-stage-card{padding:16px;border-radius:20px}.u1lab-stage-ribbon{grid-template-columns:repeat(9,92px)}.u1lab-stage-nav{position:relative;bottom:auto;margin-top:18px}.u1lab-stage-nav .btn{padding:10px 11px}.u1lab-compare-responses,.u1lab-bundle-result,.u1lab-monomial-pair,.u1lab-model-panels,.u1lab-term-lanes{grid-template-columns:1fr}.u1lab-created-scene{min-height:590px}.scene-object{left:7%!important;right:7%!important;max-width:none;width:auto}.scene-object.s1{top:25%}.scene-object.s2{top:40%}.scene-object.s3{top:55%;bottom:auto}.scene-object.s4{top:70%;bottom:auto}.scene-person{display:none}.u1lab-evidence-list{display:grid;grid-template-columns:1fr 1fr}.u1lab-token-build{align-items:flex-start;flex-direction:column}.u1lab-question{font-size:15px}.u1lab-problem-card{padding:14px}.u1lab-problem-card header{align-items:flex-start;flex-direction:column}.u1lab-work-toggle{align-items:flex-start;flex-direction:column}.u1lab-work-panel nav{display:grid;grid-template-columns:repeat(3,1fr)}.u1lab-work-panel nav button{padding:9px 4px}.u1lab-submit-actions{display:grid}.u1lab-submit-actions .btn{width:100%}.u1lab-homework-legend{display:grid}.u1lab-map-grid{grid-template-columns:1fr}.u1lab-evidence-list button{min-height:44px}.u1lab-rubric{grid-template-columns:1fr 1fr}.table-wrap{overflow-x:auto}.u1lab-3d{display:none}}
@media(prefers-reduced-motion:reduce){.scene-object,.u1-3d-stack{transition:none!important}}
@media print{.topbar,.sidenav,.u1lab-controlbar,.u1lab-tabs,.u1lab-stage-shell,.u1lab-stage-nav,.u1lab-check-row,.u1lab-work-toggle,.u1lab-submit-actions{display:none!important}.u1lab-stage-card,.card{box-shadow:none;border:0}.u1lab-work-panel{display:block!important}.u1lab-work-mode{display:block!important}}


/* Pattern First Unit 2 equation discovery engines */
.u2-equation-focus{background:#eef8f1;color:#07110b;border:1px solid #bfe6cc;border-radius:20px;padding:18px;text-align:center;margin:12px 0}.u2-equation-focus b{font-size:clamp(28px,6vw,52px)}
.u2-balance{display:grid;grid-template-columns:1fr 70px 1fr;gap:8px;align-items:end;margin:22px 0;min-height:190px}.u2-pan{background:#edf6f0;color:#07110b;border:3px solid #1c4930;border-radius:16px 16px 30px 30px;padding:14px;display:flex;flex-wrap:wrap;gap:5px;justify-content:center;align-content:center;min-height:120px;box-shadow:0 12px 0 #25372c}.u2-pan i,.u2-group-row i{display:block;width:16px;height:16px;background:#f7d154;border:1px solid #9a7810;border-radius:4px}.u2-pan .xblock{display:grid;place-items:center;width:46px;height:46px;background:#00b050;color:#001b0c;border-radius:10px;font-size:24px;font-weight:950}.u2-fulcrum{font-size:50px;text-align:center;color:#39ff88}.u2-balance.settled .u2-pan{transform:translateY(0)}
.u2-engine-tabs,.u2-choice-grid,.u2-token-bank{display:flex;gap:9px;flex-wrap:wrap;margin:12px 0}.u2-engine-tabs button,.u2-choice-grid button,.u2-token-bank button,.u2-review-grid button,.u2-special-cases button{border:1px solid #b9d0c1;background:#fff;color:#07110b;border-radius:14px;padding:12px;font-weight:900;cursor:pointer}.u2-engine-tabs button.active,.u2-choice-grid button.selected{background:#00b050;color:#001b0c}.u2-operation-machine{display:flex;justify-content:center;align-items:center;gap:8px;flex-wrap:wrap;font-size:clamp(30px,7vw,62px);font-weight:950;padding:25px;background:#07110b;border-radius:22px}.u2-operation-machine .unknown{background:#39ff88;color:#001b0c;padding:8px 16px;border-radius:12px}.u2-operation-machine .attached{border:2px dashed #f7d154;padding:8px 14px;border-radius:12px}.u2-group-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(72px,1fr));gap:10px;margin:15px 0}.u2-group-row>div{min-height:80px;padding:10px;background:#eef8f1;border:2px solid #bfe6cc;border-radius:16px;display:flex;flex-wrap:wrap;gap:4px;align-content:center;justify-content:center}
.u2-model-builder{background:#f8fbf9;color:#07110b;border-radius:20px;padding:16px;margin:15px 0}.u2-token-build{min-height:70px;border:2px dashed #91aa99;border-radius:16px;padding:14px;display:flex;gap:7px;align-items:center;flex-wrap:wrap}.u2-token-build span{background:#17211b;color:#fff;border-radius:10px;padding:8px 11px;font-size:22px;font-weight:950}
.u2-equation-layers{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;padding:24px;background:#07110b;border-radius:22px}.u2-equation-layers .layer{border-radius:15px;padding:16px;font-size:24px;font-weight:950}.u2-equation-layers .outer{background:#f7d154;color:#241b00}.u2-equation-layers .inner{background:#8ce4b1;color:#002513}.u2-equation-layers .core{background:#fff;color:#07110b}.u2-sequence{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}.u2-sequence span{background:#e8f5ec;color:#07110b;border-radius:12px;padding:10px;font-weight:900}
.u2-term-equation,.u2-variable-balance{display:flex;justify-content:center;align-items:center;gap:8px;flex-wrap:wrap;margin:18px 0}.u2-term-equation span,.u2-variable-balance span{font-size:28px;background:#fff;color:#07110b;border-radius:12px;padding:12px;font-weight:950}.u2-term-equation.result span{background:#39ff88}.u2-variable-balance>div{display:flex;gap:5px;align-items:center;flex-wrap:wrap;min-height:95px;padding:14px;background:#eef8f1;border-radius:18px}.u2-variable-balance i{font-style:normal;color:#07110b;font-weight:950;font-size:24px}
.u2-crate-model{text-align:center}.u2-crate-model>b{font-size:36px}.u2-crate-model .crates{display:grid;grid-template-columns:repeat(2,minmax(120px,220px));justify-content:center;gap:12px;margin:15px}.u2-crate-model .crates>div{border:8px solid #805b2d;background:#d9aa67;border-radius:8px;padding:15px;display:flex;justify-content:space-around;color:#07110b}.u2-crate-model span{background:#fff;border-radius:10px;padding:10px;font-size:26px;font-weight:950}.u2-special-cases{display:flex;gap:10px;flex-wrap:wrap}
.u2-fraction-equation{display:flex;align-items:center;justify-content:center;gap:10px;font-size:40px;font-weight:950;padding:22px;background:#07110b;border-radius:20px}.u2-fraction-equation .frac{display:grid;grid-template-rows:auto auto;text-align:center}.u2-fraction-equation .frac i{font-style:normal;padding:2px 12px}.u2-fraction-equation .frac i:first-child{border-bottom:3px solid #fff}.u2-review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.u2-review-grid button{text-align:left}.u2-review-grid b,.u2-review-grid span{display:block}.u2-review-grid span{color:#52625a;margin-top:5px}.u2-correction-studio,.u2-formula-bridge{background:#f8fbf9;color:#07110b;border-radius:20px;padding:18px}.u2-3d-balance{height:180px;display:grid;place-items:center;perspective:600px}.u2-3d-balance .beam{width:70%;height:15px;background:#5a7c67;transform:rotateY(var(--ry));display:flex;justify-content:space-between;transform-style:preserve-3d}.u2-3d-balance .beam i{width:90px;height:70px;background:#dcece1;border:4px solid #34523f;transform:translateY(16px)}.u2-3d-balance>b{font-size:60px;color:#39ff88;transform:translateY(-38px)}
@media(max-width:620px){.u2-balance{grid-template-columns:1fr;}.u2-fulcrum{display:none}.u2-review-grid{grid-template-columns:1fr}.u2-crate-model .crates{grid-template-columns:1fr}.u2-operation-machine{padding:16px}.u2-pan{min-height:90px}.u2-3d-balance{display:none}}


/* Pattern First Unit 3 exponent discovery engines */
.u3lab-hero{background:linear-gradient(135deg,rgba(0,176,80,.22),rgba(247,209,84,.08)),radial-gradient(circle at bottom right,rgba(57,255,136,.2),transparent 40%)}
.u3-clean-focus,.u3-earned-reveal,.u3-notation-access,.u3-locked{border:1px solid #bfe6cc;background:#f7fbf8;color:#07110b;border-radius:24px;padding:clamp(18px,4vw,30px);margin:14px 0}.u3-clean-focus{text-align:center}.u3-factor-line{font-size:clamp(30px,7vw,64px);font-weight:950;letter-spacing:.04em;margin:14px 0}.u3-power{display:inline-block;font-weight:950;white-space:nowrap}.u3-power sup{font-size:.55em;vertical-align:super;line-height:0;margin-left:.04em}.u3-idea-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:12px 0}.u3-idea-grid button,.u3-rule-sort button,.u3-workworld-grid button{border:1px solid #b9d0c1;background:#fff;color:#07110b;border-radius:16px;padding:15px;font-weight:900;cursor:pointer}.u3-idea-grid button.selected,.u3-rule-sort button.selected,.u3-workworld-grid button.selected{background:#00b050;color:#001b0c;outline:3px solid rgba(0,176,80,.22)}.u3-transform{display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap;font-size:clamp(28px,6vw,58px);margin:18px 0}.u3-product-bridge{border-top:1px solid #c9ddd0;margin-top:20px;padding-top:18px;text-align:center;font-size:24px}.u3-factor-chain{display:flex;gap:7px;justify-content:center;align-items:center;flex-wrap:wrap;margin:12px 0}.u3-factor{display:inline-grid;place-items:center;min-width:38px;height:38px;border-radius:10px;background:#39ff88;color:#001b0c;border:1px solid #00873e;font-weight:950}.u3-factor.number{background:#f7d154;border-color:#9f7f16}.u3-factor.cancelled{text-decoration:line-through;opacity:.35;transform:scale(.9)}.u3-expression-focus{font-size:clamp(34px,8vw,72px);font-weight:950;text-align:center;background:#07110b;color:#fff;border-radius:22px;padding:24px;margin:14px 0}.u3-nested-groups{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:16px 0}.u3-nested-groups>div{background:#eef8f1;border:2px solid #bfe6cc;border-radius:18px;min-height:90px;display:flex;gap:8px;align-items:center;justify-content:center}.u3-count-strip,.u3-exp-track{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin:12px 0}.u3-count-strip span,.u3-exp-track span,.u3-exp-track b{background:#e8f5ec;color:#07110b;border-radius:12px;padding:10px 14px;font-weight:950}.u3-rule-sort{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.u3-rule-sort button{text-align:left}.u3-rule-sort b,.u3-rule-sort span{display:block}.u3-rule-sort b{font-size:25px}.u3-rule-sort span{margin-top:6px;color:#52625a}.u3-quotient-model{max-width:540px;margin:16px auto;text-align:center}.u3-quotient-model .num,.u3-quotient-model .den{display:flex;justify-content:center;gap:7px;flex-wrap:wrap;padding:10px}.u3-quotient-model .bar{height:4px;background:#fff;border-radius:99px}.u3-staircase{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;margin:20px 0}.u3-staircase>div{background:#eef8f1;color:#07110b;border-radius:16px;padding:14px;min-width:90px;text-align:center}.u3-staircase b,.u3-staircase span{display:block}.u3-staircase b{font-size:26px}.u3-staircase span{font-size:22px}.u3-staircase i{font-style:normal;font-weight:950;color:#39ff88}.u3-staircase .mystery{outline:3px dashed #f7d154}.u3-negative-table{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:18px 0}.u3-negative-table>div{background:#eef8f1;color:#07110b;border-radius:16px;padding:14px;text-align:center}.u3-negative-table b,.u3-negative-table span{display:block;font-size:22px}.u3-negative-table .locked{opacity:.35}.u3-frac{display:inline-grid;grid-template-rows:auto auto;text-align:center}.u3-frac i{font-style:normal;padding:4px 14px}.u3-frac i:first-child{border-bottom:4px solid #fff}.u3-builder{display:grid;grid-template-columns:1fr 1fr minmax(120px,.7fr);gap:12px;align-items:end}.u3-builder-preview{min-height:54px;display:grid;place-items:center;background:#07110b;color:#fff;border-radius:15px;font-size:38px}.u3-workworld-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.u3-workworld-grid button{text-align:left;display:grid;grid-template-columns:58px 1fr;grid-template-rows:auto auto;gap:4px 12px}.u3-workworld-grid .u3-scene-icon{grid-row:1/3;width:54px;height:54px;border-radius:14px;background:linear-gradient(135deg,#00b050,#39ff88);box-shadow:inset 0 0 0 8px rgba(255,255,255,.32)}.u3-workworld-grid small{line-height:1.25}.u3-work-scene{display:grid;grid-template-columns:minmax(260px,1.2fr) minmax(240px,1fr);gap:16px;margin:16px 0}.u3-work-desk{position:relative;min-height:280px;border-radius:24px;background:linear-gradient(#cce8d5 0 48%,#98724c 48% 58%,#d9c09d 58%);overflow:hidden}.u3-work-desk span{position:absolute;display:block}.u3-work-desk .monitor{width:42%;height:35%;left:8%;top:8%;background:#07110b;border:9px solid #52625a;border-radius:12px}.u3-work-desk .monitor:after{content:'2× → 4× → 8×';color:#39ff88;position:absolute;inset:0;display:grid;place-items:center;font-weight:950}.u3-work-desk .cube{width:82px;height:82px;right:12%;top:24%;background:#00b050;box-shadow:18px -18px 0 #39ff88,36px -36px 0 #91eeb6}.u3-work-desk .tray{width:34%;height:16%;left:10%;bottom:8%;background:repeating-linear-gradient(90deg,#f7d154 0 16px,#815f0d 16px 18px);border-radius:8px}.u3-work-desk .chart{width:30%;height:25%;right:8%;bottom:8%;background:linear-gradient(145deg,transparent 45%,#00b050 46% 52%,transparent 53%),#fff;border:4px solid #52625a}.u3-hotspot-list{display:grid;gap:9px}.u3-hotspot-list button{border:1px solid #b9d0c1;background:#fff;color:#07110b;border-radius:14px;padding:12px;text-align:left}.u3-hotspot-list button.active{background:#00b050}.u3-hotspot-list b,.u3-hotspot-list span{display:block}.u3-hotspot-list span{font-size:13px;margin-top:4px}.u3-3d-details,.u3-layer-model{background:#f8fbf9;color:#07110b;border-radius:20px;padding:16px;margin:16px 0}.u3-cube{position:relative;width:150px;height:150px;margin:45px auto;transform-style:preserve-3d;transform:rotateX(-20deg) rotateY(var(--rot));transition:transform .2s}.u3-cube i{position:absolute;width:120px;height:120px;display:grid;place-items:center;background:rgba(0,176,80,.72);border:3px solid #006b32;color:#001b0c;font-style:normal;font-size:24px;font-weight:950}.u3-cube .front{transform:translateZ(60px)}.u3-cube .side{transform:rotateY(90deg) translateZ(60px)}.u3-cube .top{transform:rotateX(90deg) translateZ(60px)}.u3-layer-stack{position:relative;height:210px;perspective:700px}.u3-layer-stack span{position:absolute;left:50%;top:50%;width:170px;height:90px;display:grid;place-items:center;background:rgba(0,176,80,.72);border:2px solid #006b32;border-radius:10px;transform:translate(-50%,-50%) translate3d(calc(var(--i)*10px),calc(var(--i)*-13px),calc(var(--i)*20px));font-weight:950}.u3-fallback{border-left:4px solid #00b050;padding-left:12px}.u3-locked{text-align:center}.u3-reveal-btn{margin-top:10px}
@media(max-width:620px){.u3-idea-grid,.u3-rule-sort,.u3-workworld-grid,.u3-work-scene{grid-template-columns:1fr}.u3-nested-groups{grid-template-columns:1fr}.u3-negative-table{grid-template-columns:repeat(2,1fr)}.u3-builder{grid-template-columns:1fr 1fr}.u3-builder-preview{grid-column:1/3}.u3-work-desk{min-height:220px}.u3-cube{transform:rotateX(-18deg) rotateY(18deg)} }


/* Complete Pattern First Units 4–5 */
.u45lab-hero{background:radial-gradient(circle at 82% 18%,rgba(57,255,136,.18),transparent 25%),linear-gradient(135deg,#07110b,#0d2d1b 60%,#006b32)}
.pf-expression-focus{font-size:clamp(28px,7vw,58px);font-weight:950;text-align:center;background:#07110b;color:#fff;border-radius:22px;padding:22px;margin:14px 0}.pf-expression-focus.small{font-size:clamp(22px,5vw,38px)}
.pf-choice-grid,.pf-label-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:14px 0}.pf-choice-grid button,.pf-label-grid button{border:1px solid #b9d0c1;background:#fff;color:#07110b;border-radius:16px;padding:14px;text-align:left}.pf-choice-grid button.selected,.pf-label-grid button.selected{background:#00b050;border-color:#006b32}.pf-choice-grid b,.pf-choice-grid span{display:block}.pf-choice-grid span{font-size:13px;margin-top:5px}
.pf-reveal-panel{background:#eaf8ef;border-left:5px solid #00b050;border-radius:14px;padding:16px;margin:14px 0;font-weight:800}
.pf-created-scene{min-height:260px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;background:linear-gradient(150deg,#d8efe0,#f8f2df);border-radius:24px;padding:18px;margin:16px 0}.pf-created-scene.packaging{background:linear-gradient(150deg,#e9dfc6,#d8efe0)}.pf-created-scene.manufacture{background:linear-gradient(150deg,#d4dde0,#e7f6eb)}.pf-scene-card{background:rgba(255,255,255,.9);border:2px solid #abc5b3;border-radius:18px;padding:16px;text-align:left}.pf-scene-card.selected{outline:4px solid #00b050}.pf-scene-card b,.pf-scene-card span{display:block}.pf-scene-card span{margin-top:7px;color:#42534a}
.pf-tile-row{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}.pf-tile-row span{display:grid;place-items:center;min-width:44px;min-height:40px;border-radius:11px;background:#39ff88;border:1px solid #00873e;color:#001b0c;font-weight:950}.pf-tile-row span.product{background:#f7d154;border-color:#9f7f16}
.pf-polynomial-pair{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:15px 0}.pf-polynomial-pair article{background:#eef8f1;border:2px solid #bddfc8;border-radius:18px;padding:18px;text-align:center}.pf-polynomial-pair b,.pf-polynomial-pair small{display:block}.pf-polynomial-pair b{font-size:clamp(22px,4vw,34px)}
.pf-term-lanes{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:16px 0}.pf-term-lanes.compact{grid-template-columns:repeat(4,1fr)}.pf-term-lanes>div{background:#eef8f1;border-radius:15px;padding:13px}.pf-term-lanes b,.pf-term-lanes span{display:block}.pf-term-lanes span{margin-top:6px}
.pf-distribution-model{display:grid;grid-template-columns:auto auto 1fr;gap:16px;align-items:center;background:#eef8f1;border-radius:20px;padding:20px}.pf-distribution-model .outside{background:#00b050;border-radius:12px;padding:14px;font-weight:950}.pf-distribution-model>div{display:flex;gap:10px;flex-wrap:wrap}.pf-distribution-model>div span{background:#fff;border:1px solid #b9d0c1;border-radius:10px;padding:11px;font-weight:850}.pf-arrows{margin:18px 0}
.pf-area-shell{display:grid;grid-template-columns:55px 1fr;grid-template-rows:55px 1fr;max-width:520px;margin:18px auto}.pf-area-label{display:grid;gap:5px}.pf-area-label.top{grid-column:2;grid-template-columns:1fr 1fr}.pf-area-label.side{grid-row:2;grid-template-rows:1fr 1fr}.pf-area-label span{display:grid;place-items:center;font-weight:950}.pf-area-box{grid-column:2;grid-row:2;display:grid;grid-template-columns:1fr 1fr}.pf-area-box button{min-height:90px;border:2px solid #006b32;background:#fff;font-size:24px;font-weight:950}.pf-area-box button.filled{background:#c9f4d8}
.pf-product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:5px;max-width:650px;margin:15px auto}.pf-product-grid span{background:#dff3e6;border:2px solid #006b32;padding:18px;text-align:center;font-size:22px;font-weight:950}
.pf-fraction-model{background:#07110b;color:#fff;border-radius:20px;padding:18px;max-width:660px;margin:14px auto}.pf-fraction-model hr{border:0;border-top:4px solid #fff;margin:12px}
.pf-conveyor{display:grid;gap:10px}.pf-conveyor>b{background:#07110b;color:#fff;border-radius:12px;padding:12px;text-align:center}.pf-conveyor button{display:grid;grid-template-columns:1fr 1fr;border:1px solid #b9d0c1;border-radius:14px;padding:12px;text-align:left}.pf-conveyor button.done{background:#c9f4d8}.pf-conveyor i{font-style:normal;text-align:right}
.pf-error-board{background:#fff5d6;border:2px solid #d7aa20;border-radius:18px;padding:18px}.pf-error-board p{font-family:ui-monospace,monospace;font-size:20px}
.pf-reverse-machine{display:grid;grid-template-columns:1fr auto 1fr;gap:14px;align-items:center}.pf-reverse-machine>div{background:#eef8f1;border-radius:18px;padding:22px;text-align:center}.pf-reverse-machine b,.pf-reverse-machine small{display:block}.pf-reverse-machine b{font-size:30px}.pf-reverse-machine button{border-radius:50%;width:78px;height:78px;background:#00b050;border:0;font-weight:950}
.pf-control-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.pf-group-panels{display:grid;grid-template-columns:1fr 1fr;gap:14px}.pf-group-panels article{background:#eef8f1;border-radius:17px;padding:17px}.pf-group-panels b,.pf-group-panels span{display:block}.pf-group-panels span{margin-top:8px;color:#075a2d;font-weight:850}
.pf-ac-board{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:14px 0}.pf-ac-board span{background:#eef8f1;border-radius:14px;padding:14px;text-align:center;font-weight:900}.pf-step-stack p{background:#f4faf6;border-left:5px solid #00b050;padding:12px}
.pf-zero-switches{display:grid;grid-template-columns:1fr 1fr;gap:14px}.pf-zero-switches button{border:2px solid #b9d0c1;border-radius:18px;background:#fff;padding:18px;font-size:22px;font-weight:900}.pf-zero-switches button.selected{background:#00b050}
.pf-graph-layout{display:grid;grid-template-columns:minmax(280px,1.2fr) minmax(220px,.8fr);gap:18px;align-items:center}.pf-graph-layout svg{width:100%;background:#fff;border:1px solid #b9d0c1;border-radius:18px}.pf-graph-layout line{stroke:#6d7d74;stroke-width:2}.pf-graph-layout polyline{fill:none;stroke:#00a14a;stroke-width:4}.pf-graph-layout circle{fill:#07110b}
.pf-network{display:grid;grid-template-columns:repeat(2,1fr);gap:13px}.pf-network button{border:2px solid #b9d0c1;background:#fff;border-radius:18px;padding:18px}.pf-network button.selected{background:#c9f4d8;border-color:#00b050}
@media(max-width:680px){.pf-choice-grid,.pf-label-grid,.pf-created-scene,.pf-polynomial-pair,.pf-term-lanes,.pf-term-lanes.compact,.pf-control-grid,.pf-group-panels,.pf-ac-board,.pf-zero-switches,.pf-network,.pf-graph-layout{grid-template-columns:1fr}.pf-distribution-model{grid-template-columns:1fr;text-align:center}.pf-reverse-machine{grid-template-columns:1fr}.pf-reverse-machine button{margin:auto;transform:rotate(90deg)}.pf-product-grid{grid-template-columns:repeat(2,1fr)} }

/* Pattern First Unit 6 */
.u1lab-engine-grid,.u1lab-choice-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;align-items:end}.u1lab-readout{padding:16px;border:2px solid var(--green,#1f8f4e);border-radius:14px;background:#f3fff7}.u1lab-workspace{min-height:150px}.u1lab-canvas{width:100%;max-width:100%;border:2px dashed #777;border-radius:12px;background:#fff;touch-action:none}.u1lab-mission-map{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px}.u1lab-mission-map a{display:flex;flex-direction:column;padding:12px;border:1px solid #ddd;border-radius:12px;text-decoration:none}.u1lab-mission-map a.active{outline:3px solid var(--green,#1f8f4e)}@media(max-width:520px){.u1lab-engine-grid,.u1lab-choice-grid{grid-template-columns:1fr}.u1lab-homework-card{padding:14px}.hero-actions .btn{width:100%}}