:root{color-scheme:dark;--bg:#0b1927;--panel:#132638;--line:#264055;--text:#f3f8fc;--muted:#a4bacb;--green:#6cff00;--ink:#102600;--blue:#6dcaff;--red:#ff9fa4}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.5 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{opacity:.55;cursor:wait}a{color:var(--green)}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--blue);outline-offset:4px}button svg,a svg{flex-shrink:0}svg{width:22px;height:22px;vertical-align:middle}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(28px,4vw,38px);line-height:1.15;letter-spacing:-1.2px}h2{font-size:23px;letter-spacing:-.65px}h3{font-size:17px}p{color:var(--muted)}.brand{display:flex;gap:11px;align-items:center;color:white;text-decoration:none}.brandmark{width:43px;height:43px;background:var(--green);color:var(--ink);display:grid;place-items:center;border-radius:14px}.brandmark svg{width:28px;height:28px}.brand strong{font-size:20px;letter-spacing:1px;line-height:1.2}.brand small{display:block;color:var(--muted);font-size:11px;letter-spacing:.3px}.shell{max-width:1500px;margin:auto;display:grid;grid-template-columns:245px 1fr;min-height:100dvh}.sidebar{padding:33px 23px;border-right:1px solid var(--line);display:flex;flex-direction:column;position:sticky;top:0;height:100dvh}.side-links{display:grid;gap:9px;margin-top:52px}.navitem{background:none;border:0;color:var(--muted);text-align:left;display:flex;align-items:center;gap:13px;padding:14px 15px;border-radius:13px;font-weight:600}.navitem.active{background:var(--green);color:var(--ink)}.sidebar-bottom{margin-top:auto;color:var(--muted);font-size:12px}.sidebar-bottom b{color:var(--green)}.workspace{padding:26px 40px 55px;min-width:0}.topbar{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:30px}.eyebrow{color:var(--muted);font-size:11px;font-weight:750;letter-spacing:1.7px;text-transform:uppercase}.profile{display:flex;align-items:center;gap:11px}.avatar{width:40px;height:40px;display:grid;place-items:center;background:#25415a;border-radius:50%;color:var(--blue);font-weight:800}.profile small{display:block;color:var(--muted);font-size:11px}.top-actions{display:flex;gap:10px;align-items:center}.icon-btn{padding:10px;border:1px solid var(--line);border-radius:12px;background:var(--panel);color:var(--text)}.lead{margin:5px 0 24px}.lead p{margin:10px 0 0}.green{color:var(--green)}.hero{display:grid;grid-template-columns:1.2fr .8fr;overflow:hidden;position:relative;border:1px solid #496e28;border-radius:24px;background:linear-gradient(115deg,#213b19,#132d30);padding:30px;gap:20px;margin-bottom:25px}.hero h2{font-size:30px;line-height:1.15;max-width:400px;margin:15px 0}.hero p{max-width:400px;color:#c1d8c5}.pill{display:inline-flex;gap:7px;align-items:center;border:1px solid #648c3c;border-radius:30px;padding:5px 10px;color:var(--green);font-size:11px;font-weight:700}.btn{border:0;border-radius:12px;padding:13px 20px;font-weight:750;background:var(--green);color:var(--ink);display:inline-flex;align-items:center;justify-content:center;gap:9px;text-decoration:none}.btn.secondary{background:#203d52;color:#e9f4ff;border:1px solid #34546c}.btn.light{background:transparent;color:var(--muted);border:1px solid var(--line)}.btn.full{width:100%}.btn.small{padding:8px 13px;font-size:13px}.study-art{position:relative;display:grid;place-items:center;min-height:225px}.art-card{width:200px;height:185px;background:#f2f7ee;transform:rotate(8deg);border-radius:18px;color:#17351c;padding:24px;box-shadow:12px 18px 0 #0a21194d}.art-card .formula{font-size:22px;font-weight:900;letter-spacing:-1px;margin-top:15px}.shape{width:110px;height:65px;border:3px solid #3b9221;background:#a4eb7b;margin:13px auto;position:relative}.shape:after{content:'7 cm';position:absolute;top:100%;width:100%;text-align:center;font-size:11px;font-weight:700}.art-badge{position:absolute;background:var(--green);color:#163000;right:5px;bottom:18px;transform:rotate(-9deg);padding:12px 17px;border-radius:14px;font-size:13px;font-weight:850}.spark{position:absolute;color:var(--green);font-size:40px;top:0;right:0}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:24px 0 32px}.stat{border:1px solid var(--line);border-radius:17px;padding:18px;background:var(--panel);display:flex;align-items:center;gap:14px}.stat-icon{width:42px;height:42px;background:#243c23;color:var(--green);border-radius:13px;display:grid;place-items:center}.stat strong{font-size:25px;display:block;line-height:1.25}.stat small{font-size:12px;color:var(--muted)}.section-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:24px 0 15px}.section-head h2{margin:0}.text-button{border:0;background:none;color:var(--green);font-size:13px;font-weight:700}.subjects{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.subject{color:var(--text);text-align:left;background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:21px;transition:transform .18s,border-color .18s}.subject:hover{transform:translateY(-3px);border-color:var(--green)}.subject-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.subject-icon{background:color-mix(in srgb,var(--accent) 15%,transparent);color:var(--accent);width:45px;height:45px;border-radius:13px;display:grid;place-items:center;font-size:22px;font-weight:800}.subject h3{margin:0 0 4px}.subject p{font-size:12px;min-height:18px;margin:0 0 18px}.subject .arrow{color:var(--muted)}.track{height:5px;border-radius:8px;background:#2c4153;overflow:hidden}.track div{height:100%;background:var(--green);border-radius:8px}.subject-foot{font-size:11px;display:flex;justify-content:space-between;color:var(--muted);margin-top:9px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:24px;margin-bottom:18px}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:20px}.muted{color:var(--muted)}.smalltext{font-size:13px}.empty{padding:28px 18px;text-align:center;color:var(--muted)}.empty svg{width:38px;height:38px;color:var(--green);margin-bottom:14px}.empty h3{color:var(--text);margin-bottom:7px}.bottom-nav{display:none}.demo-strip{background:#263b20;border-bottom:1px solid #456b30;text-align:center;font-size:12px;padding:8px 12px;color:#d1eabf}.demo-strip button{font:inherit;background:none;color:var(--green);border:0;text-decoration:underline;cursor:pointer}.auth{max-width:1050px;min-height:100dvh;margin:auto;display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:70px;padding:40px 26px}.auth-intro h1{font-size:48px;margin:35px 0 20px}.auth-intro .study-art{max-width:300px;margin:auto}.auth-card{background:var(--panel);border:1px solid var(--line);padding:30px;border-radius:24px}.tabs{display:flex;background:#0b1a28;padding:5px;border-radius:12px;margin:20px 0;gap:5px}.tabs button{flex:1;padding:10px 8px;border:0;background:none;color:var(--muted);border-radius:9px;font-weight:700}.tabs button.active{background:#294338;color:var(--green)}label{display:block;font-size:13px;color:#c7d7e4;font-weight:600;margin:14px 0 6px}input,select{display:block;width:100%;padding:13px 14px;border:1px solid #36516a;border-radius:11px;background:#0d1c2c;color:white;min-width:0}.field-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.auth form .btn{margin-top:22px}.check{display:flex;gap:10px;align-items:start;font-weight:400;font-size:12px}.check input{width:auto;margin-top:5px}.error{background:#ff66771a;border:1px solid #ff8b9566;padding:12px;border-radius:10px;color:#ffc1c7;margin:12px 0;font-size:13px}.info{padding:13px 16px;border-radius:12px;background:#6dcaff12;border:1px solid #6dcaff30;color:#afdfff;font-size:13px;margin:15px 0}.notice{font-size:12px;color:var(--muted);line-height:1.6}.row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.between{justify-content:space-between}.chips{display:flex;flex-wrap:wrap;gap:9px;margin:18px 0}.chip{padding:9px 14px;border:1px solid var(--line);color:var(--muted);border-radius:30px;background:var(--panel);font-weight:600}.chip.active{border-color:var(--green);background:#6cff0014;color:var(--green)}.topic{display:flex;gap:17px;align-items:center}.topic .copy{flex:1}.topic p{font-size:13px;margin:3px 0}.quiz-wrap{max-width:730px;margin:auto}.question-card{padding:28px;background:var(--panel);border:1px solid var(--line);border-radius:22px}.question-card h2{font-size:25px;line-height:1.4;margin:25px 0}.options{display:grid;gap:11px;margin-top:23px}.option{display:flex;gap:13px;align-items:center;border:1px solid #3a5369;background:#0d1e2d;color:white;padding:15px;text-align:left;border-radius:12px}.option b{width:28px;height:28px;border-radius:8px;background:#263e52;display:grid;place-items:center;font-size:12px;flex-shrink:0}.option.selected{border-color:var(--green);background:#6cff0010}.option.correct{border-color:var(--green);background:#6cff0020}.option.wrong{border-color:var(--red)}.option:disabled{opacity:1;cursor:default}.feedback{margin:20px 0;background:#6cff0012;border:1px solid #6cff0044;border-radius:14px;padding:18px;color:#d8efc7}.feedback.wrong{background:#ff9fa40d;border-color:#ff9fa450;color:#ffd4d8}.feedback p{color:inherit;margin:6px 0 0;font-size:14px}.drawing{margin:30px auto;width:180px;height:95px;background:#6cff0020;border:3px solid var(--green);position:relative;display:grid;place-items:center;color:var(--green);font-weight:750}.drawing small{position:absolute;bottom:-26px;left:0;width:100%;text-align:center}.result{padding:35px 20px;text-align:center}.result .big{font-size:65px;letter-spacing:-4px;color:var(--green);font-weight:850}.result svg{height:58px;width:58px;color:var(--green)}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:13px}th,td{text-align:left;padding:14px 10px;border-bottom:1px solid var(--line);white-space:nowrap}th{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.6px}.badge{display:inline-flex;padding:4px 9px;background:#6cff0017;color:var(--green);border-radius:20px;font-size:11px}.student-switch{display:flex;gap:10px;overflow-x:auto;padding-bottom:8px}.student-switch button{white-space:nowrap}.code{font-size:30px;letter-spacing:4px;color:var(--green);font-weight:850;overflow-wrap:anywhere}.boot{padding:70px 20px;text-align:center;font-size:30px;font-weight:800}.boot span{color:var(--green)}.boot p{font-size:15px;font-weight:400}#toast{position:fixed;bottom:95px;left:50%;transform:translateX(-50%);z-index:30;background:#e9f6e2;color:#193100;border-radius:12px;box-shadow:0 8px 30px #0006;max-width:90vw;padding:12px 20px;font-size:14px;display:none}.mobile-brand{display:none}.offline{color:#ffd8a7;font-size:12px}.dialog-backdrop{position:fixed;inset:0;background:#000a;z-index:50;display:grid;place-items:center;padding:20px}.dialog{background:var(--panel);border:1px solid var(--line);padding:27px;border-radius:20px;max-width:500px;max-height:85dvh;overflow:auto}.dialog h2{margin-bottom:10px}.dialog p{font-size:14px}.auth-footer{text-align:center;font-size:11px;margin-top:20px;color:var(--muted)}.screen-reader{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
@media(min-width:1250px){.workspace{padding:30px 55px}.hero{padding:33px 38px}}@media(max-width:1050px){.shell{grid-template-columns:200px 1fr}.sidebar{padding:28px 14px}.workspace{padding:25px}.subjects{grid-template-columns:repeat(2,1fr)}.stat{padding:15px;gap:10px}.stat-icon{display:none}.hero{grid-template-columns:1fr .7fr;padding:25px}.art-card{width:165px;height:170px;padding:18px}.art-card .formula{font-size:19px}.art-badge{right:-10px}.auth{gap:35px}.auth-intro h1{font-size:40px}}@media(max-width:700px){.shell{display:block}.sidebar{display:none}.workspace{padding:20px 18px calc(100px + env(safe-area-inset-bottom))}.topbar{margin-bottom:28px}.mobile-brand{display:flex}.topbar>.profile{display:none}.top-actions .profile .profile-text{display:none}.top-actions .btn{font-size:12px;padding:9px}.topbar .eyebrow{display:none}.bottom-nav{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:20;background:#0e1e2df5;backdrop-filter:blur(15px);border-top:1px solid var(--line);padding:10px 8px calc(10px + env(safe-area-inset-bottom));justify-content:space-around}.bottom-nav .navitem{flex-direction:column;gap:4px;padding:5px 9px;border-radius:9px;font-size:10px;min-width:55px}.bottom-nav .navitem.active{color:var(--green);background:transparent}.bottom-nav svg{width:23px;height:23px}.brand strong{font-size:17px}.brandmark{width:37px;height:37px;border-radius:12px}.brand small{font-size:10px}.lead h1{font-size:29px}.lead p{font-size:13px}.hero{padding:22px 20px;grid-template-columns:1fr .55fr;gap:0;border-radius:20px}.hero h2{font-size:25px}.hero p{font-size:12px;max-width:240px}.hero .pill{font-size:9px;padding:4px 8px}.hero .btn{padding:11px 14px;font-size:12px}.study-art{min-height:180px;margin-right:-15px}.art-card{width:110px;height:140px;padding:15px 10px;border-radius:12px}.art-card .formula{font-size:13px;margin-top:8px}.art-card .eyebrow{font-size:7px}.shape{width:65px;height:45px;margin:15px auto}.art-badge{font-size:9px;padding:9px;bottom:0;right:0}.spark{font-size:25px;right:5px;top:15px}.stats{gap:8px;margin:18px 0 27px}.stat{display:block;padding:13px 10px;border-radius:13px}.stat strong{font-size:23px}.stat small{font-size:10px;display:block}.section-head h2{font-size:20px}.subjects{gap:11px}.subject{padding:16px;border-radius:15px}.subject h3{font-size:15px}.subject p{font-size:11px;min-height:33px;margin-bottom:12px}.subject-top{margin-bottom:15px}.subject-icon{width:39px;height:39px;font-size:20px}.subject-foot{font-size:10px}.grid2{grid-template-columns:1fr;gap:0}.panel{padding:20px;border-radius:17px}.auth{display:block;padding:25px 20px 40px}.auth-intro h1{font-size:31px;margin:28px 0 12px}.auth-intro .study-art{display:none}.auth-intro p{font-size:14px}.auth-card{padding:22px;margin-top:25px}.auth-card h2{font-size:23px}.question-card{padding:20px}.question-card h2{font-size:21px}.topic{align-items:start;flex-wrap:wrap}.topic .copy{min-width:180px}.topic .btn{width:100%}.field-row{grid-template-columns:1fr 1fr}.profile-text{font-size:13px}.question-card .btn{width:100%}}
@media(max-width:700px){.hero{display:block}.hero .study-art{display:none}.hero h2{max-width:290px;font-size:25px}.hero p{max-width:280px}.hero .pill{font-size:9px}.hero:after{content:'✦';position:absolute;right:20px;bottom:18px;color:var(--green);font-size:29px;opacity:.5}}
/* Folha editável, com teclado nativo em celulares. */
.workbook{margin-top:28px;border-radius:15px;overflow:hidden;background:#fffdf3;color:#172b40;border:1px solid #e6debd;box-shadow:0 9px 22px #0002}.paper-head{padding:17px 20px;background:#f3edcf;border-bottom:1px solid #e2d6a3;display:flex;gap:10px;justify-content:space-between;align-items:center;font-size:15px;font-weight:800}.paper-head svg{width:20px;height:20px;margin-right:6px}.paper-required{font-size:10px;text-transform:uppercase;background:#26422a;color:#b3ff6f;padding:5px 8px;border-radius:20px}.workbook .paper-instructions{font-size:13px;color:#42586a;margin:17px 20px}.paper-values{display:flex;gap:8px;flex-wrap:wrap;margin:0 20px 18px}.paper-values span{font-size:12px;background:#eeeede;padding:7px 10px;border-radius:8px}.paper-values small{color:#526577}.paper-fields{padding:0 20px 0 34px;border-left:2px solid #df9292;margin-left:19px}.paper-fields label{color:#29445a;font-size:12px;margin-top:17px}.paper-fields label small{font-weight:400}.workbook textarea{display:block;resize:vertical;width:100%;min-height:37px;border:0;border-radius:0;background:repeating-linear-gradient(to bottom,transparent 0,transparent 31px,#b6c9da 32px,transparent 33px);background-attachment:local;color:#163658;font:18px/33px ui-monospace,SFMono-Regular,Consolas,monospace;padding:0 4px;outline-offset:2px;caret-color:#1e5a0c}.workbook textarea::placeholder{color:#778993;font-size:13px;font-family:system-ui}.workbook textarea[readonly]{cursor:default;color:#244b29}.workbook .paper-help{font-size:11px;color:#526677;margin:17px 20px}.workbook #workStatus{margin:12px 20px}.workbook .paper-lock{font-size:12px;color:#4c5f6a}.workbook .paper-error{color:#9a2430;background:#fff0e6;border:1px solid #e4ac8d;padding:12px;border-radius:9px;font-size:13px}.workbook .paper-success{color:#254c1b;background:#e1f3c8;border:1px solid #a4ce76;padding:12px;border-radius:9px;font-size:13px}.workbook>.row{margin:15px 20px 20px}.options[hidden]{display:none}.drawing{min-height:100px;height:auto;padding:15px 8px;text-align:center;width:min(250px,90%);font-size:14px}.question-card .workbook h2{color:#17304a}@media(max-width:700px){.paper-head{padding:14px 13px;font-size:13px}.paper-fields{margin-left:12px;padding-left:16px;padding-right:13px}.workbook .paper-instructions,.paper-values,.workbook .paper-help,.workbook #workStatus{margin-left:13px;margin-right:13px}.workbook>.row{margin-left:13px;margin-right:13px}.workbook textarea{font-size:17px}.workbook textarea::placeholder{font-size:12px}.workbook .btn{font-size:13px}.question-card:has(textarea:focus){scroll-margin-bottom:90px}}
.saved-work{padding:18px;background:#fffdf3;color:#18374e;border-radius:12px;margin:18px 0}.dialog .saved-work p{color:#405969}.saved-work dt{font-size:11px;font-weight:800;text-transform:uppercase;color:#556c78;margin-top:11px}.saved-work dd{margin:4px 0;font:15px/1.6 ui-monospace,Consolas,monospace;white-space:pre-wrap;overflow-wrap:anywhere}.paper-fields textarea:focus{outline:2px solid #377da6}
.manual-space{margin:22px 0;border:1px solid #c6d2cc;border-radius:13px;overflow:hidden;background:#f4f6e9}.manual-heading{display:flex;align-items:center;justify-content:space-between;padding:14px 15px 0}.manual-heading h3{margin:0;color:#27482a;font-size:16px}.manual-heading span{font-size:25px;color:#386d2b}.workbook .manual-intro{margin:8px 15px 14px;font-size:12px;color:#50604c}.manual-builder{margin:0 12px 14px;border:1px solid #ced8c6;border-radius:9px;background:#fffef6;padding:10px 12px}.manual-builder summary{font-size:12px;font-weight:750;color:#2b5731;cursor:pointer}.manual-builder p{color:#64705c;font-size:11px;margin:8px 0}.manual-builder-fields{display:grid;grid-template-columns:1fr 1fr;gap:10px}.manual-builder-fields>div:nth-child(2){grid-column:1/-1;grid-row:2}.manual-builder input,.manual-builder select{background:white;color:#213b4e;padding:9px;font-size:15px;border:1px solid #b7c6c8}.manual-builder .btn{margin-top:12px}.manual-tools{display:flex;gap:5px;flex-wrap:wrap;padding:10px 12px;background:#e7ecdb;border-block:1px solid #ced8c6}.manual-tools button{padding:6px 10px;min-width:34px;border:1px solid #b4c1a9;border-radius:7px;background:#fffdf4;color:#224521;font:700 15px system-ui}.manual-tools button:nth-last-child(-n+2){font-size:11px}.workbook textarea.manual-sheet{font:19px/30px ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:0;tab-size:2;white-space:pre;overflow:auto;min-height:310px;resize:vertical;padding:12px 15px;width:100%;border:0;color:#173a66;background-color:#fffffa;background-image:linear-gradient(#b3cdd64d 1px,transparent 1px),linear-gradient(90deg,#b3cdd64d 1px,transparent 1px);background-size:11.45px 30px;background-position:15px 12px;caret-color:#19324c}.workbook textarea.manual-sheet::placeholder{font:13px/30px system-ui;white-space:pre-wrap;color:#7a8b95}.workbook .manual-footer{font-size:11px;color:#536950;margin:10px 14px}.saved-work dd.manual-saved{background:#fffef7;padding:12px;overflow:auto;white-space:pre;line-height:1.7;font-size:16px;border:1px solid #d3dccf;border-radius:8px}.workbook .manual-space label{margin-top:7px;font-size:11px}.workbook .manual-space label.screen-reader{margin:0}@media(max-width:700px){.manual-heading h3{font-size:14px}.workbook textarea.manual-sheet{font-size:18px;background-size:10.85px 30px;padding-left:10px;padding-right:10px;background-position:10px 12px}.manual-builder .btn{width:100%;font-size:12px}}
.annual-overview{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0}.annual-overview span{background:#6cff0012;border:1px solid #6cff0030;border-radius:12px;color:#c8f1b2;padding:11px 15px;font-size:13px;display:flex;gap:8px;align-items:center}.term-tabs{display:flex;gap:8px;overflow:auto;padding:16px 0 8px}.term-tabs .chip{white-space:nowrap}.year-topic{display:flex;align-items:center;gap:16px;text-align:left;width:100%;padding:19px;background:var(--panel);color:var(--text);border:1px solid var(--line);border-radius:16px;margin-bottom:11px}.year-topic:hover{border-color:var(--green)}.year-topic>span:nth-child(2){flex:1;min-width:0}.year-topic b{font-size:16px;display:block}.year-topic small{display:block;font-size:12px;color:var(--muted);margin-top:5px}.topic-number{display:grid;place-items:center;min-width:42px;height:42px;background:#6cff0018;color:var(--green);border-radius:12px;font-weight:800;font-size:14px}.year-topic>svg{width:19px}.worked-example{padding:18px;background:#6cff000a;border:1px solid #6cff0035;border-radius:14px;margin:22px 0}.worked-example h3{color:var(--green);margin-bottom:10px}.worked-example p{font-size:14px}.worked-example strong{font-size:14px;line-height:1.8;display:block}.lesson-steps{color:#b5c9d9;padding-left:21px;line-height:1.8;font-size:14px}.lesson-steps li{padding-left:5px;margin:8px 0}.open-paper,.close-paper{display:none}.curriculum-notice{margin:20px 0}.shape-visual{display:block;max-width:100%;margin:22px auto;color:var(--green)}
@media(max-width:700px){html,body{max-width:100%;overflow-x:hidden}.workspace{padding:18px 15px calc(94px + env(safe-area-inset-bottom))}.hero{padding:21px}.hero h2{font-size:24px}.profile-text{display:none}.topbar{margin-bottom:23px}input,select,textarea{font-size:16px}button,.btn,.chip{min-height:44px}.navitem{min-height:44px}.term-tabs{position:sticky;top:0;z-index:6;background:var(--bg);margin:0 -4px;padding:12px 4px}.term-tabs .chip{padding:10px 12px;font-size:12px;flex-shrink:0}.year-topic{padding:15px;gap:12px}.year-topic b{font-size:14px}.year-topic small{font-size:11px}.topic-number{min-width:35px;height:35px;font-size:12px}.annual-overview{gap:8px}.annual-overview span{font-size:11px;padding:10px 12px}.lead h1{font-size:28px}.lead p{font-size:14px}.panel{padding:18px}.field-row{grid-template-columns:1fr;gap:3px}.question-card{padding:19px 16px}.question-card h2{font-size:21px;line-height:1.45}.open-paper{display:flex;width:100%;gap:12px;align-items:center;justify-content:space-between;background:#fffdf3;color:#233c25;border:1px solid #c7d99d;padding:16px;border-radius:13px;margin-top:25px;text-align:left}.open-paper span{flex:1}.open-paper b{font-size:14px;display:block}.open-paper small{font-size:11px;display:block;margin-top:3px;color:#527046}.question-card>.workbook{display:none}.paper-open{overflow:hidden}.paper-open .question-card>.workbook{display:block;position:fixed;inset:0;z-index:45;border:0;border-radius:0;margin:0;padding-bottom:calc(35px + env(safe-area-inset-bottom));overflow-y:auto;overscroll-behavior:contain;scroll-padding-top:90px}.paper-open .paper-head{position:sticky;top:0;z-index:3;padding-top:calc(13px + env(safe-area-inset-top));padding-bottom:13px}.close-paper{display:grid;place-items:center;width:38px;min-width:38px;height:38px;border:1px solid #c5c697;background:#fffdf3;color:#304d30;border-radius:10px;padding:6px}.paper-head>span:first-of-type{flex:1}.paper-open .paper-fields{padding-left:15px;padding-right:14px}.paper-open .paper-values{margin-top:18px}.paper-open textarea{scroll-margin-top:100px;scroll-margin-bottom:35px}.paper-open .workbook>.row .btn{width:100%;min-height:47px}.typing .bottom-nav,.paper-open .bottom-nav{display:none}.manual-tools{gap:7px}.manual-tools button{min-width:37px;min-height:42px}.workbook .manual-sheet{min-height:330px}.subject{min-height:180px}.table-wrap{margin:0 -4px}.table-wrap th,.table-wrap td{padding:13px 9px}.dialog-backdrop{padding:13px}.dialog{padding:20px;max-width:100%;max-height:90dvh}.saved-work dd{font-size:14px}.boot{font-size:25px}.auth-intro h1{font-size:32px}}
@media(max-width:700px){.term-tabs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px;overflow:visible}.term-tabs .chip{padding:10px 2px;font-size:10.5px;min-width:0;text-align:center}}
.grade-picker{padding:16px;background:#152c3d;border:1px solid var(--line);border-radius:15px;margin-bottom:24px;display:flex;align-items:center;justify-content:space-between;gap:15px}.grade-picker>span{font-size:13px;font-weight:700;color:#c6dce8}.grade-picker>div{display:flex;gap:7px}.grade-picker button{padding:10px 18px;border:1px solid #3a5265;border-radius:11px;background:#0b1c2b;color:#b8cad8;font-weight:750}.grade-picker button.active{background:var(--green);border-color:var(--green);color:var(--ink)}.demo-roles{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}.demo-roles button{padding:4px 8px;font-size:11px;min-height:30px}.pending-shell{max-width:520px;margin:auto;padding:35px 20px}.pending-shell>.brand{margin:10px 0 32px}.waiting{text-align:center;padding:30px}.waiting h1{font-size:30px;margin:24px 0 16px}.waiting-icon{width:70px;height:70px;border-radius:22px;display:grid;place-items:center;margin:0 auto 20px;background:#6cff0018;color:var(--green)}.waiting-icon svg{width:36px;height:36px}.waiting .btn{margin-top:12px}.admin-shell{max-width:1100px;margin:auto;padding:28px 25px}.approval-counts{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:25px 0}.approval-count{padding:18px;text-align:left;border:1px solid var(--line);background:var(--panel);color:var(--text);border-radius:16px}.approval-count.active{border-color:var(--green);background:#6cff000b}.approval-count strong{font-size:30px;display:block;color:var(--green)}.approval-count span{font-size:12px;color:var(--muted)}.admin-search{margin:25px 0}.admin-search input{flex:1;min-width:170px}.approval-user{display:flex;justify-content:space-between;gap:18px;align-items:center}.approval-person{display:flex;gap:13px;align-items:center;min-width:0}.approval-person>div{min-width:0}.approval-person h3{margin:0 0 3px}.approval-person p{margin:0 0 10px;font-size:12px;overflow-wrap:anywhere}.approval-buttons{display:flex;gap:9px;flex-wrap:wrap}.approval-buttons .btn{font-size:12px;white-space:nowrap}@media(max-width:700px){.grade-picker{display:block;padding:13px}.grade-picker>span{display:block;margin-bottom:11px;font-size:12px}.grade-picker>div{display:grid;grid-template-columns:repeat(3,1fr)}.grade-picker button{font-size:13px;padding:10px}.admin-shell{padding:20px 16px}.admin-shell h1{font-size:29px}.approval-counts{gap:8px;grid-template-columns:repeat(2,1fr)}.approval-count{padding:14px}.approval-user{display:block;padding:18px}.approval-buttons{margin-top:18px;display:grid;grid-template-columns:1fr 1fr}.approval-buttons>.btn:only-child{grid-column:1/-1}.approval-person .avatar{min-width:38px}.admin-search .row{gap:8px}.admin-search input{flex-basis:100%}.admin-search .btn{flex:1}.auth .tabs{gap:3px}.auth .tabs button{font-size:11px;padding:10px 6px}.demo-strip{font-size:10px}.demo-roles{gap:5px}.demo-roles button{min-height:28px;padding:3px 5px;font-size:10px}.pending-shell{padding:25px 17px}.waiting{padding:24px 18px}}
.expression-keys{display:flex;gap:6px;flex-wrap:wrap;margin:9px 0 11px}.expression-keys button{background:#e9efdf;border:1px solid #bcc9af;color:#2c4c26;border-radius:8px;min-width:36px;min-height:38px;font:700 18px system-ui;padding:4px 9px}@media(max-width:700px){.expression-keys button{min-height:43px;min-width:36px;padding:5px 8px}}