:root{--tm-ink:#173149;--tm-text:#52697c;--tm-orange:#e45c2b;--tm-orange-hover:#c6471d;--tm-sky:#eff4f7;--tm-line:#dbe4eb;--tm-sand:#faeee5;--tm-white:#fff;--font-body:'DM Sans',Arial,sans-serif;--font-display:'Manrope',Arial,sans-serif;--ink:var(--tm-ink);--ink-70:var(--tm-text);--paper:#f6f8fa;--paper-dim:var(--tm-sky);--coral:var(--tm-orange);--cobalt:#335e7e;--line:var(--tm-line);--max:1240px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body.tm-site{margin:0;color:var(--tm-ink);background:#fff;font-family:var(--font-body);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}body.tm-site button,body.tm-site input,body.tm-site select{font:inherit}body.tm-site h1,body.tm-site h2,body.tm-site h3{font-family:var(--font-display);color:var(--tm-ink);margin:0;line-height:1.13;letter-spacing:-.045em}body.tm-site h2{font-size:clamp(34px,3.6vw,50px);font-weight:650}body.tm-site h3{font-size:23px;letter-spacing:-.035em}body.tm-site p{margin:0 0 20px}body.tm-site a{color:inherit;text-decoration:none}body.tm-site img{max-width:100%;display:block}body.tm-site button{cursor:pointer}body.tm-site button:disabled{cursor:default}body.tm-site :focus-visible{outline:3px solid #357dad;outline-offset:5px}body.tm-site [hidden]{display:none!important}body.tm-site em{font-family:Georgia,'Times New Roman',serif;font-weight:400;color:var(--tm-orange);letter-spacing:-.045em}body.modal-open{overflow:hidden}.tm-wrap{width:min(1240px,calc(100% - 80px));margin-inline:auto}.tm-section{padding:104px 0}.tm-kicker{display:block;font-size:12px;line-height:1.5;letter-spacing:.13em;font-weight:800;color:#8a472a;margin-bottom:20px}.microcopy{font-size:13px!important;color:var(--tm-text);line-height:1.5}.text-link{display:inline-flex;align-items:center;gap:22px;font-size:15px;font-weight:700;border-bottom:1px solid currentColor;padding-bottom:5px;line-height:1.4;transition:color .2s}.text-link:hover{color:var(--tm-orange)}.tm-btn{display:inline-flex;align-items:center;justify-content:center;gap:28px;background:var(--tm-orange);color:#fff!important;border:1px solid transparent;border-radius:7px;min-height:54px;padding:15px 24px;font-size:14px;font-weight:700;line-height:1.4;text-decoration:none;box-shadow:none;transition:background .2s,transform .2s}.tm-btn:hover{background:var(--tm-orange-hover);transform:translateY(-2px)}.tm-btn span{font-size:20px;font-weight:400;line-height:1}.tm-btn-small{min-height:44px;padding:11px 17px;font-size:13px;gap:15px}.tm-btn-navy{background:var(--tm-ink)}.tm-btn-navy:hover{background:#294b67}.tm-btn-outline{background:transparent;color:var(--tm-ink)!important;border:1px solid #80929f}.tm-btn-outline:hover{background:var(--tm-sky)}.tm-btn-light{background:#fff;color:var(--tm-ink)!important}.tm-btn-light:hover{background:#e8f0f5}.skip-link{position:fixed;top:-100px;left:20px;padding:12px 20px;background:#fff;z-index:999;border:2px solid var(--tm-ink)}.skip-link:focus{top:10px}
/* Navigation */
.tm-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid #e8edf1}.nav-inner{display:flex;align-items:center;min-height:88px;gap:38px}.tm-brand{display:flex;align-items:center;flex-shrink:0;gap:8px;line-height:1}.tm-brand>span{font-family:var(--font-display);font-size:30px;letter-spacing:-1.8px;font-weight:500}.tm-brand .brand-bold{font-weight:800}.tm-brand i{font:10px Arial,sans-serif;vertical-align:top;margin-left:2px;position:relative;top:4px}.tm-brand img{width:34px;height:42px;object-fit:contain}.tm-nav{display:flex;align-items:center;gap:25px;flex:1;justify-content:center;font-size:14px;font-weight:600;white-space:nowrap}.tm-nav>a:hover,.tm-drop-toggle:hover,.login-link:hover{color:var(--tm-orange)}.tm-nav-actions{display:flex;align-items:center;gap:21px}.login-link{font-size:14px;font-weight:600;white-space:nowrap}.tm-drop-toggle{background:none;border:0;padding:15px 0;display:flex;align-items:center;gap:8px;color:var(--tm-ink);font-size:14px}.tm-dropdown{position:relative}.tm-drop-panel{position:absolute;left:-30px;top:calc(100% + 15px);width:355px;padding:20px;background:white;border:1px solid var(--tm-line);border-radius:14px;box-shadow:0 25px 70px #17314920;white-space:normal}.menu-label{font-size:11px;letter-spacing:.12em;font-weight:800;color:var(--tm-text);margin:0 0 10px!important}.tm-drop-panel>a{display:flex;gap:14px;padding:11px 8px;border-radius:7px;align-items:center}.tm-drop-panel>a:hover{background:var(--tm-sky)}.nav-grade{display:grid;place-items:center;min-width:35px;height:35px;background:var(--tm-sand);font-size:17px;color:#a74522;border-radius:50%}.tm-drop-panel strong,.tm-drop-panel small{display:block}.tm-drop-panel strong{font-size:14px}.tm-drop-panel small{font-size:12px;color:var(--tm-text)}.tm-menu-toggle,.mobile-login{display:none}
/* Opening composition */
.tm-hero{padding:80px 0 85px;background:#fbfcfd;overflow:hidden}.hero-layout{display:grid;grid-template-columns:1.08fr 1fr;gap:64px;align-items:center}.hero-label{display:flex;align-items:center;gap:9px;font-size:12px;font-weight:700;letter-spacing:.1em;margin-bottom:25px}.ontario-mark{color:var(--tm-orange);font-size:21px}.hero-message h1{font-size:clamp(48px,5.1vw,72px)!important;font-weight:700;line-height:1.035!important;letter-spacing:-.065em!important;margin-bottom:26px!important}.hero-message h1 em{display:inline-block;line-height:1.05}.hero-message>p:not(.microcopy){font-size:18px;line-height:1.7;color:var(--tm-text);max-width:470px}.hero-message p strong{color:var(--tm-ink);font-weight:500}.hero-buttons{display:flex;align-items:center;flex-wrap:wrap;gap:23px;margin:30px 0 15px}.tm-play-link{display:inline-flex;align-items:center;gap:11px;font-size:14px;font-weight:600}.play-icon{width:33px;height:33px;border:1px solid #a8b8c4;border-radius:50%;display:grid;place-items:center;font-size:10px;padding-left:2px}.tm-play-link:hover .play-icon{background:var(--tm-sand)}.hero-credibility{display:flex;gap:12px;align-items:center;margin-top:33px}.hero-credibility img{width:46px;height:46px;object-fit:cover;object-position:50% 17%;border-radius:50%}.hero-credibility>span{font-size:13px;line-height:1.5}.hero-credibility small{display:block;font-size:12px;color:var(--tm-text)}.hero-composition{position:relative;padding:25px 8px 70px 10px;min-width:0}.math-window{position:relative;z-index:2;border-radius:17px;background:#173149;box-shadow:0 28px 70px #1731492b;transform:rotate(-3deg);overflow:hidden}.math-window-top{display:flex;justify-content:space-between;align-items:center;padding:18px 20px;border-bottom:1px solid #ffffff26;color:#a7bdcb;font-size:9px;letter-spacing:.09em;gap:8px}.window-dots{display:flex;gap:5px}.window-dots i{display:block;width:5px;height:5px;background:#c1d0da70;border-radius:50%}.math-window-content{padding:22px 18px 16px;position:relative}.math-window-label{font-size:10px;letter-spacing:.16em;color:#a7bdcb}.window-equation{font-family:Georgia,serif;font-style:italic;font-size:38px;color:white;position:absolute;right:30px;top:18px}.hero-graph{display:block;width:100%;height:auto;margin-top:15px}.graph-caption{display:flex;gap:10px;align-items:center;color:#c7d6df;font-size:12px;margin:8px 8px}.graph-caption strong{color:white;font-weight:500}.graph-check{width:29px;height:29px;border-radius:50%;display:grid;place-items:center;background:#ee9f6330;color:#ffb286;font-size:16px}.hero-curve{stroke-dasharray:1;stroke-dashoffset:0}.floating-equation{position:absolute;font-family:Georgia,serif;color:#38556b;z-index:4}.equation-one{top:-11px;right:-24px;background:#fff;border:1px solid #e3e9ef;padding:19px 21px;box-shadow:0 10px 30px #17314910;border-radius:11px;font-size:26px;transform:rotate(8deg);animation:bob 7s ease-in-out infinite}.equation-two{bottom:11px;right:2px;transform:rotate(-7deg);font-size:25px;z-index:1;color:#9a7563}.insight-card{position:absolute;z-index:5;left:-35px;bottom:48px;display:flex;align-items:center;gap:13px;background:#fff;border:1px solid var(--tm-line);border-radius:10px;box-shadow:0 15px 40px #17314918;padding:18px 22px;transform:rotate(1deg)}.insight-card strong{font-size:13px;display:block}.insight-card small{font-size:12px;color:var(--tm-text)}.insight-icon{display:grid;place-items:center;width:39px;height:39px;background:var(--tm-sand);border-radius:9px;font-size:23px;color:var(--tm-orange)}.composition-caption{position:absolute;bottom:-30px;left:15px;font-size:9px;letter-spacing:.16em;color:#8294a2}.proof-strip{padding:34px 0 25px;border-top:1px solid var(--tm-line);background:#fff}.proof-strip .tm-wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:25px}.proof-strip .tm-wrap>div{text-align:center;border-right:1px solid var(--tm-line)}.proof-strip .tm-wrap>div:last-child{border:0}.proof-strip strong{font-family:var(--font-display);font-size:35px;font-weight:700;letter-spacing:-.05em;line-height:1.2}.proof-strip strong span{font-size:15px;margin-left:6px;letter-spacing:-.01em;font-weight:500}.proof-strip p{font-size:12px;color:var(--tm-text);margin:7px 0 0}.proof-strip .proof-note{text-align:center;font-size:11px;margin:24px 20px 0;color:#7b8c99}.math-flow{padding:22px 0;background:var(--tm-sand);overflow:hidden;border-top:1px solid #f3e0d3;border-bottom:1px solid #f3e0d3}.math-flow-track{display:flex;width:max-content;animation:math-flow 80s linear infinite}.math-flow-track>div{display:flex;align-items:center;gap:35px;padding-right:35px}.math-flow .notation{font:italic 25px Georgia,serif;white-space:nowrap;color:#815942}.math-flow .topic{font-size:10px;letter-spacing:.15em;font-weight:700;white-space:nowrap;color:#825f49}.math-flow i{font-size:12px;font-style:normal;color:#bf8b6b}.math-flow:hover .math-flow-track{animation-play-state:paused}
/* Learning experience */
.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:70px;margin-bottom:44px}.section-heading>div{flex:1}.section-heading>p{max-width:360px;color:var(--tm-text);font-size:16px;line-height:1.75;margin-bottom:3px}.lesson-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:82px;align-items:center;scroll-margin-top:115px}.lesson-copy{padding:35px 0}.lesson-number{font-family:var(--font-display);font-size:14px;letter-spacing:.22em;color:#899dab;display:block;margin-bottom:25px}.lesson-copy h3{font-size:42px!important;line-height:1.18!important;letter-spacing:-.04em!important;margin-bottom:24px!important}.lesson-copy>p{color:var(--tm-text);font-size:16px}.lesson-feature{display:flex;gap:13px;padding:24px 0;margin:10px 0 24px;border-top:1px solid var(--tm-line);border-bottom:1px solid var(--tm-line)}.lesson-feature>span{font-size:28px;color:var(--tm-orange);line-height:1.2}.lesson-feature strong{font-size:14px}.lesson-feature p{font-size:13px;color:var(--tm-text);margin:7px 0 0!important}.lesson-lab{border:1px solid #d4e0e8;border-radius:18px;background:#fff;padding:30px;box-shadow:0 22px 75px #2442590c;min-height:545px;position:relative}.lab-top{display:flex;justify-content:space-between;align-items:center}.lab-badge{font-size:10px;letter-spacing:.12em;font-weight:700;color:#537084}.lab-step{font-size:11px;color:#687e90}.lab-progress{display:flex;gap:6px;margin:15px 0 25px}.lab-progress i{height:3px;flex:1;background:#e9eef2;border-radius:2px}.lab-progress i.active{background:var(--tm-orange)}.lab-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:15px}.lab-heading>div>span{font-size:10px;letter-spacing:.09em;color:var(--tm-text);font-weight:600}.lab-heading h3{font-size:19px!important;letter-spacing:-.025em!important;line-height:1.3!important;margin-top:4px!important}.lab-equation{font:italic 21px Georgia,serif;white-space:nowrap}.lab-equation b{color:var(--tm-orange);font-weight:400}.lab-stage svg{width:100%;height:auto}.slope-control{display:flex;align-items:center;gap:20px;margin:18px 0 23px;font-size:12px}.slope-control>span:first-child{white-space:nowrap}.slope-control strong{display:inline-block;width:20px;color:var(--tm-orange);text-align:right}.slope-control input{min-width:0;flex:1;accent-color:var(--tm-orange);cursor:ew-resize}.slope-control>span:last-child{font-size:11px;white-space:nowrap;color:var(--tm-text)}.lab-next{width:100%;min-height:47px}.question-title{font-size:25px!important;line-height:1.3!important;max-width:480px;margin:15px 0!important}.lab-stage>p{font-size:14px;color:var(--tm-text)}.answer-options{display:grid;gap:10px;margin:25px 0 18px}.answer-options button{border:1px solid var(--tm-line);background:#fff;color:var(--tm-ink);text-align:left;border-radius:9px;padding:14px 18px;font-size:14px;transition:background .2s}.answer-options button:hover{background:var(--tm-sky)}.answer-options button.correct{background:#e7f3ec;border-color:#2e8160;color:#165d40}.answer-options button.incorrect{background:#fff0e8;border-color:#c85a38}.answer-feedback{font-size:14px;line-height:1.6;min-height:24px;margin-bottom:16px}.answer-feedback.success{color:#276d4f}.lab-explain{width:100%}.lab-complete{text-align:center}.completion-icon{display:grid;place-items:center;width:47px;height:47px;border-radius:50%;margin:0 auto 16px;color:#28714e;background:#eaf5ee;font-size:24px}.lab-complete .tm-kicker{margin-bottom:12px}.lab-complete h3{font-size:23px!important;line-height:1.3!important}.worked-example{display:flex;justify-content:center;flex-wrap:wrap;align-items:center;gap:25px;padding:22px 20px;margin:22px 0;background:var(--tm-sky);border-radius:10px;font-size:13px}.worked-example span b{display:block;font-size:21px;font-family:Georgia,serif;font-weight:400}.worked-example>strong{flex-basis:100%;font-size:12px;color:#6a8294;margin-top:-10px}.worked-example>i{font-style:normal;color:var(--tm-orange)}.restart-lesson{display:block;margin:15px auto 0;background:none;border:0;text-decoration:underline;color:var(--tm-text);font-size:12px!important}
/* Courses */
.courses-section{background:var(--tm-sky)}.course-filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:30px}.course-filters button{border:1px solid #cddae3;background:transparent;border-radius:100px;padding:10px 22px;min-height:44px;color:var(--tm-ink);font-size:13px!important;font-weight:600}.course-filters button.active{background:var(--tm-ink);border-color:var(--tm-ink);color:#fff}.course-filters button:hover:not(.active){background:white}.tm-course-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:22px}.tm-course-card{grid-column:span 2;background:#fff;border:1px solid #d8e3ea;border-radius:13px;overflow:hidden;transition:transform .2s,box-shadow .2s;display:flex;flex-direction:column}.tm-course-card:nth-child(n+4){grid-column:span 3}.tm-course-card:hover{transform:translateY(-4px);box-shadow:0 18px 35px #17314910}.course-art{display:block;position:relative;height:155px;background:#e7eff3;border-bottom:1px solid #dae4eb;overflow:hidden}.course-art :is(img,.course-plot){height:170px;width:230px;object-fit:cover;position:absolute;right:0;bottom:-17px;opacity:.92;mix-blend-mode:multiply}.art-formula{font:italic 29px Georgia,serif;position:absolute;left:25px;top:28px;color:#214560}.tm-course-content{padding:26px;flex:1;display:flex;flex-direction:column}.card-meta{font-size:10px;letter-spacing:.1em;font-weight:800;color:#6a8294;display:block;margin-bottom:10px}.tm-course-content h3{font-size:23px!important;line-height:1.25!important;margin:0 0 14px!important}.tm-course-content p{font-size:14px;color:var(--tm-text);line-height:1.7;flex:1;margin-bottom:25px!important}.tm-course-content .text-link{align-self:flex-start;border:0;font-size:13px;padding:0}.course-help{text-align:center;font-size:13px;margin:30px 0 0!important;color:var(--tm-text)}.course-help a{color:var(--tm-ink)!important;text-decoration:underline!important}.tm-course-grid.filtered{grid-template-columns:repeat(2,minmax(0,1fr))}.tm-course-grid.filtered .tm-course-card{grid-column:auto;max-width:580px}
/* People and learning rhythm */
.teacher-layout{display:grid;grid-template-columns:.88fr 1fr;gap:100px;align-items:center}.teacher-portrait{position:relative;margin-right:25px}.teacher-portrait>img{width:100%;height:540px;object-fit:cover;object-position:center 25%;border-radius:10px}.teacher-portrait:after{content:'';position:absolute;inset:55% 0 0;background:linear-gradient(transparent,#0b233ad6);border-radius:0 0 10px 10px;pointer-events:none}.teacher-signature{position:absolute;left:30px;bottom:30px;z-index:2;color:#fff;font-size:25px;font-family:var(--font-display);font-weight:600;letter-spacing:-.04em}.teacher-signature span{display:block;font:10px var(--font-body);letter-spacing:.12em;margin-top:8px;color:#dbe6ee}.experience-seal{position:absolute;right:-40px;top:38px;width:107px;height:107px;border-radius:50%;background:var(--tm-orange);border:6px solid white;color:white;z-index:3;display:flex;flex-direction:column;align-items:center;justify-content:center;transform:rotate(10deg)}.experience-seal strong{font-family:var(--font-display);font-size:36px;line-height:1.1;letter-spacing:-.05em}.experience-seal span{font-size:8px;line-height:1.4;text-align:center;letter-spacing:.12em}.teacher-story h2{margin-bottom:27px!important}.teacher-story>p{font-size:16px;color:var(--tm-text);line-height:1.8}.teacher-statement{font-family:Georgia,serif;font-size:24px;line-height:1.5;color:var(--tm-ink);border-left:2px solid var(--tm-orange);padding-left:21px;margin:28px 0}.secondary-link{margin:18px 0 0 24px;font-size:13px;color:var(--tm-text)!important}.rhythm-section{padding:90px 0;background:#173149;color:#fff}.rhythm-section h2,.rhythm-section h3{color:#fff!important}.rhythm-section .tm-kicker{color:#ffb48e}.rhythm-section .section-heading>p{color:#aec3d2}.rhythm-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:45px;margin-top:50px}.rhythm-grid article{border-top:1px solid #ffffff33;padding-top:24px}.rhythm-symbol{display:block;font:italic 38px Georgia,serif;color:#ffad84;margin-bottom:35px;height:42px}.rhythm-grid .card-meta{color:#89a5ba;margin-bottom:13px}.rhythm-grid h3{font-size:23px!important;margin-bottom:14px!important}.rhythm-grid p{font-size:15px;color:#b7cad7;line-height:1.75;max-width:325px;margin:0!important}
/* Plans and answers */
.pricing-layout{display:grid;grid-template-columns:.76fr 1.24fr;gap:66px;align-items:center}.pricing-intro h2{margin-bottom:22px!important}.pricing-intro>p{max-width:300px;color:var(--tm-text);font-size:16px}.included{display:grid;gap:11px;color:var(--tm-text);font-size:13px;margin:28px 0}.plans{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:stretch}.plan-card{padding:36px 27px 28px;border:1px solid var(--tm-line);border-radius:12px;position:relative;background:#f7fafb;display:flex;flex-direction:column}.plan-card .card-meta{margin-bottom:24px}.plan-card h3{font-size:12px!important;letter-spacing:0!important;font-weight:500!important}.plan-card h3>span{font-family:var(--font-display);font-size:52px;font-weight:700;letter-spacing:-.07em;margin-right:3px}.plan-card p{font-size:13px;color:var(--tm-text);line-height:1.7}.plan-card h3+p{margin-top:5px}.plan-card hr{border:0;border-top:1px solid var(--tm-line);width:100%;margin:6px 0 24px}.plan-card .tm-btn{margin-top:auto;white-space:nowrap;gap:12px;padding:13px;min-height:48px;font-size:13px}.plan-featured{background:var(--tm-ink);border-color:var(--tm-ink);color:#fff}.plan-featured h3{color:#fff!important}.plan-featured .card-meta{color:#c1d4e2}.plan-featured p{color:#b5cbd9}.plan-featured hr{border-color:#ffffff28}.plan-ribbon{position:absolute;left:-1px;right:-1px;top:-24px;min-height:25px;border-radius:9px 9px 0 0;background:#f5c9ac;color:#723c22;text-align:center;padding:5px 8px;font-size:8px;letter-spacing:.065em;font-weight:800}.practice-banner{padding:48px 0;background:var(--tm-sand);border-top:1px solid #edd8c9;border-bottom:1px solid #edd8c9}.practice-banner .tm-wrap{display:flex;align-items:center;gap:45px}.practice-symbol{font:italic 77px Georgia,serif;color:#c68c6e}.practice-banner h2{font-size:29px!important}.practice-banner p{margin:12px 0 0!important;font-size:14px;color:#856754}.practice-banner .tm-kicker{font-size:10px;margin-bottom:10px}.practice-banner .tm-btn{margin-left:auto;white-space:nowrap;font-size:13px}.faq-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:110px}.faq-layout>div>p{color:var(--tm-text);font-size:14px;margin:28px 0 0}.faq-layout .text-link{font-size:13px;margin-top:10px}.faq-list details{border-top:1px solid var(--tm-line)}.faq-list details:last-child{border-bottom:1px solid var(--tm-line)}.faq-list summary{display:flex;justify-content:space-between;align-items:center;gap:20px;list-style:none;cursor:pointer;padding:22px 0;font-size:15px;font-weight:600;line-height:1.4}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary span{font-weight:400;font-size:22px;line-height:1;flex-shrink:0;color:#7a8e9d}.faq-list details[open] summary span{transform:rotate(45deg)}.faq-list details>p{font-size:14px;line-height:1.8;color:var(--tm-text);padding:0 25px 22px 0;margin:0!important}.final-cta{padding:68px 0;background:#173149;overflow:hidden;position:relative}.final-cta .tm-wrap{display:flex;justify-content:space-between;align-items:center;gap:45px;position:relative;z-index:1}.final-cta h2{color:#fff!important;font-size:45px!important}.final-cta .tm-kicker{color:#b7cddc;font-size:9px}.final-cta .tm-wrap>div{position:relative;z-index:2}.final-cta p{color:#b7cddc;font-size:12px;margin:14px 0 0!important;text-align:center}.cta-integral{position:absolute;right:60px;top:-110px;color:#ffffff08;font:350px Georgia,serif;z-index:0;line-height:1}.tm-footer{padding:68px 0 22px;background:#fafcfd;color:var(--tm-ink)}.footer-top{display:grid;grid-template-columns:1.2fr 1fr 1.1fr 1.2fr;gap:55px}.footer-top .tm-brand{margin-bottom:20px}.footer-top p{color:var(--tm-text);font-size:13px;line-height:1.7;margin-bottom:18px!important}.footer-location{font-size:11px;color:#7991a3}.footer-top h2{font-size:13px!important;font-family:var(--font-body)!important;letter-spacing:0!important;font-weight:700!important;margin-bottom:22px!important}.footer-top>div>a:not(.tm-brand){display:block;font-size:13px;color:var(--tm-text);margin:9px 0}.footer-top>div>a:hover{color:var(--tm-orange)}.footer-top .footer-email{color:var(--tm-ink)!important;margin-bottom:24px!important;font-weight:600}.tm-footer .footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:44px 0 0;padding:22px 0 0;border-top:1px solid var(--tm-line);font-size:11px;color:#7a8d9b}.footer-bottom>div{display:flex;gap:24px;align-items:center;flex-wrap:wrap}.footer-bottom button{border:0;background:none;color:#6f8595;font-size:11px!important;padding:0;text-decoration:underline}
/* Course detail */
.tm-breadcrumb{display:flex;gap:13px;color:var(--tm-text);font-size:12px;margin-bottom:47px}.tm-breadcrumb a:hover{color:var(--tm-orange)}.course-hero{padding:34px 0 68px;background:#f4f7f9}.course-hero-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:80px;align-items:center}.course-hero h1{font-size:54px!important;line-height:1.1!important;letter-spacing:-.06em!important;max-width:650px}.course-hero h1 em{display:block;font-size:32px;letter-spacing:-.025em;margin-top:12px}.course-hero .tm-kicker{font-size:11px}.course-tagline{font-size:20px;font-weight:500;margin:28px 0 8px!important}.course-hero p:not(.course-tagline){color:var(--tm-text);font-size:16px;max-width:525px}.course-hero-art{position:relative;background:#e7eef3;border:1px solid #d9e3ea;border-radius:18px;padding:12px 25px 38px;transform:rotate(3deg)}.course-hero-art img{width:100%;height:auto;mix-blend-mode:multiply}.course-hero-art>span{position:absolute;bottom:17px;left:27px;font-family:var(--font-display);font-size:15px;letter-spacing:.13em;color:#6b8192}.course-facts{border-bottom:1px solid var(--tm-line);padding:23px 0}.course-facts .tm-wrap{display:flex;justify-content:space-between;gap:20px;font-size:13px;color:var(--tm-text)}.course-facts b{font-weight:700;color:var(--tm-ink)}.curriculum-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:85px;align-items:start}.curriculum-intro{margin:24px 0 32px!important;max-width:560px;color:var(--tm-text)}.curriculum-list{border-top:1px solid var(--tm-line)}.curriculum-unit{border-bottom:1px solid var(--tm-line)}.curriculum-unit summary{display:flex;align-items:center;gap:18px;list-style:none;cursor:pointer;padding:23px 0;line-height:1.45}.curriculum-unit summary::-webkit-details-marker{display:none}.curriculum-unit summary>span{font-size:12px;color:var(--tm-orange);font-weight:600}.curriculum-unit summary strong{font-size:16px;font-weight:600}.curriculum-unit summary i{margin-left:auto;font-size:20px;font-style:normal;color:#93a6b3}.curriculum-unit[open] summary i{transform:rotate(45deg)}.curriculum-unit>div{padding:0 25px 26px 36px}.curriculum-unit p{font-size:14px;color:var(--tm-text)}.curriculum-unit .text-link{font-size:13px}.course-enrol{background:var(--tm-sky);border:1px solid #dce6ed;padding:32px;border-radius:13px;position:sticky;top:115px}.course-enrol .tm-kicker{font-size:10px}.course-enrol h3{font-size:23px!important;line-height:1.3!important;margin-bottom:16px!important}.course-enrol>p{font-size:14px;color:var(--tm-text);line-height:1.7}.course-enrol>.tm-btn{width:100%;font-size:14px;gap:15px}.course-enrol hr{border:0;border-top:1px solid #d4e1e9;margin:30px 0 24px}.enrol-option{display:flex;align-items:center;justify-content:space-between;gap:20px;background:white;border:1px solid #d9e3eb;border-radius:8px;padding:15px;margin:13px 0;font-size:14px}.enrol-option:hover{border-color:var(--tm-orange)}.enrol-option small{display:block;color:var(--tm-text);font-size:11px}.enrol-option strong{white-space:nowrap;font-weight:600}.course-enrol .microcopy{font-size:11px!important;margin:16px 0 0!important}.course-practice{background:var(--tm-sky)}.practice-link-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.practice-link-grid>a{display:flex;justify-content:space-between;align-items:center;gap:22px;padding:23px;background:#fff;border:1px solid var(--tm-line);border-radius:8px;font-size:14px;line-height:1.5}.practice-link-grid>a:hover{border-color:#98afbf}.practice-link-grid>a>span{color:var(--tm-orange);flex-shrink:0}.course-teacher .tm-wrap{display:flex;align-items:center;gap:80px;max-width:1000px}.course-teacher img{width:260px;height:300px;object-fit:cover;object-position:50% 20%;border-radius:12px}.course-teacher p{font-size:16px;color:var(--tm-text);margin:24px 0}.course-teacher h2{font-size:38px!important}.teacher-page-hero{background:#f7fafb}.teacher-page-hero>div>h1{font-size:60px!important;line-height:1.15!important;margin-bottom:60px!important}.teacher-page-layout{display:grid;grid-template-columns:.82fr 1.18fr;gap:85px;align-items:start}.teacher-page-layout .teacher-portrait{margin-right:0;position:sticky;top:110px}.teacher-page-layout .teacher-portrait>img{height:580px}.teacher-page-layout h2{font-size:34px!important;margin:20px 0 28px!important}.teacher-page-layout p{font-size:16px;line-height:1.9;color:var(--tm-text)}.teacher-page-layout blockquote{font:italic 26px/1.5 Georgia,serif;margin:28px 0;padding:20px 0;border-top:1px solid var(--tm-line);border-bottom:1px solid var(--tm-line)}.teacher-page-layout p.signature{font:italic 36px Georgia,serif;color:var(--tm-ink)}.teacher-values .rhythm-grid article{border-color:var(--tm-line)}.teacher-values .rhythm-grid p{color:var(--tm-text)}.teacher-values .rhythm-symbol{color:var(--tm-orange)}.error-page{min-height:60vh}.error-page h1{font-size:70px!important;margin-bottom:25px!important}.error-page .tm-btn{margin-right:30px}
/* Shared practice pages retain their teaching content. */
.legacy-page .wrap{max-width:1240px;width:calc(100% - 80px);padding-left:0;padding-right:0}.legacy-page .reveal{opacity:1;transform:none}.legacy-page .page-header,.legacy-page .assign-hero{background:#f2f6f8;border-bottom:1px solid #dfe8ee;padding:54px 0}.legacy-page h1{font-size:48px!important;letter-spacing:-.04em!important}.legacy-page .lead{font-size:18px;line-height:1.75}.legacy-page .breadcrumb{font-size:12px;margin-bottom:20px}.legacy-page .assign-badge{font-size:11px;letter-spacing:.12em;background:transparent;padding:0;color:#965033;box-shadow:none}.legacy-page .kw-intro{background:#e9f0f5;border-left:2px solid #9cb3c4;font-size:14px;line-height:1.8}.legacy-page .grade-tabs{gap:10px;margin:25px 0}.legacy-page .grade-tab{background:white;border:1px solid var(--tm-line);border-radius:9px;padding:14px 24px;transition:background .2s}.legacy-page .grade-tab.active{background:var(--tm-ink);color:white;border-color:var(--tm-ink)}.legacy-page .grade-tab .g{font-size:10px}.legacy-page .grade-tab .c{font-family:var(--font-display);font-size:17px}.legacy-page .unit-grid{gap:20px}.legacy-page .unit-card{border:1px solid var(--tm-line);border-radius:12px;box-shadow:none;transition:transform .2s}.legacy-page .unit-card:hover{box-shadow:0 15px 35px #1731490f;transform:translateY(-3px)}.legacy-page .unit-card .top{background:var(--tm-sky)!important;color:var(--tm-ink);padding:22px}.legacy-page .unit-card .top .t{font-size:19px;line-height:1.4;min-height:54px}.legacy-page .unit-card .body{padding:22px;min-height:210px}.legacy-page .unit-card .body p{font-size:14px;flex:none;line-height:1.75;margin:0 0 22px}.legacy-page .unit-card .body .go{font-size:13px;color:#b54d28;margin-top:auto}.legacy-page .howto{background:var(--tm-ink);border:0;border-radius:12px;padding:32px;box-shadow:none}.legacy-page .howto h2,.legacy-page .howto h3{color:white!important}.legacy-page .faq-item{border:1px solid var(--tm-line);border-radius:10px;box-shadow:none}.legacy-page .qcard{border:1px solid var(--tm-line);border-radius:13px;box-shadow:none;padding:30px;margin-bottom:24px}.legacy-page .qnum{border-radius:8px;background:var(--tm-ink);font-family:var(--font-display)}.legacy-page .qlevel{font-size:10px}.legacy-page .qfig{box-shadow:none;border:1px solid var(--tm-line);border-radius:10px;max-width:100%;overflow:hidden}.legacy-page .qfig svg{max-height:460px;width:100%;display:block}.legacy-page details.sol{border-top:1px solid var(--tm-line);margin-top:24px}.legacy-page details.sol summary{min-height:44px;display:flex;align-items:center;color:var(--tm-orange);font-size:14px;cursor:pointer}.legacy-page .solbody{background:var(--tm-sky);border-radius:8px;padding:25px;line-height:1.8}.legacy-page .finalans{border:1px solid #eac6aa;background:#fff3e8;border-radius:8px}.legacy-page .btn{border:1px solid transparent;border-radius:7px;box-shadow:none;font-family:var(--font-body);font-size:14px;min-height:46px}.legacy-page .btn-primary{background:var(--tm-orange);color:white}.legacy-page .btn-ghost{background:white;border-color:var(--tm-line);color:var(--tm-ink)}.legacy-page .outcome{box-shadow:none;border:1px solid var(--tm-line);border-radius:11px;padding:27px}.legacy-page .oc-n{font-family:var(--font-display);color:var(--tm-orange)}.legacy-page .video-card{border:1px solid var(--tm-line);box-shadow:none;border-radius:12px;background:#fff}.legacy-page .video-card:hover{box-shadow:0 10px 30px #17314915;transform:translateY(-2px)}.legacy-page .video-card .meta{padding:20px}.legacy-page .video-card .meta .badge{font-size:11px;border:0;background:var(--tm-sky)}.legacy-page .yt-facade{cursor:pointer}.legacy-page .yt-facade .yt-play{border:0;background:#173149e6}.legacy-page .caption-note{font-size:13px;line-height:1.7}.practice-search{display:flex;align-items:center;gap:18px;margin:30px 0 24px}.practice-search label{font-size:14px;font-weight:600;white-space:nowrap}.practice-search input{flex:1;min-width:0;max-width:470px;border:1px solid #c7d6e1;border-radius:8px;padding:13px 16px;color:var(--tm-ink);background:white;font-size:14px!important}.practice-search-count{font-size:12px;color:var(--tm-text)}.practice-empty{padding:40px;background:var(--tm-sky);border-radius:10px;font-size:15px}.legacy-page .related{border-top:1px solid var(--tm-line)}.legacy-page .related-links a{border:1px solid var(--tm-line);font-size:13px;font-weight:500}
/* Dialogs, handoff and mobile assistance */
.tm-dialog{border:0;border-radius:17px;width:min(720px,calc(100% - 32px));max-height:calc(100dvh - 40px);margin:auto;padding:0;color:var(--tm-ink);background:white;box-shadow:0 35px 100px #061e4166;overflow:auto}.tm-dialog::backdrop{background:#102537aa;backdrop-filter:blur(5px)}.dialog-heading{padding:34px 34px 20px;position:relative}.dialog-heading .tm-kicker{font-size:10px;margin-bottom:13px}.dialog-heading h2{font-size:30px!important;margin-right:35px!important}.dialog-heading p{font-size:14px;color:var(--tm-text);margin:12px 0 0!important}.dialog-close{position:absolute;right:22px;top:22px;width:35px;height:35px;border:1px solid var(--tm-line);border-radius:50%;background:white;font-size:23px!important;color:var(--tm-ink);display:grid;place-items:center;line-height:1}.chooser-courses{display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:8px 34px 27px}.chooser-option{display:flex;align-items:center;gap:12px;text-align:left;padding:16px;border:1px solid #d4e0e8;border-radius:9px;background:#fff;color:var(--tm-ink)}.chooser-option:last-child{grid-column:span 2}.chooser-option:hover{border-color:#7c9db5;background:#f4f8fa}.chooser-option[aria-pressed=true]{border:2px solid #e46c40;padding:15px;background:#fff4ec}.chooser-grade{display:grid;place-items:center;border-radius:50%;background:#e9f0f5;width:35px;height:35px;flex-shrink:0;font-size:16px}.chooser-option strong{display:block;font-size:13px}.chooser-option small{display:block;font-size:11px;color:var(--tm-text);line-height:1.5;margin-top:2px}.chooser-confirm{background:var(--tm-sky);padding:23px 34px 30px;border-top:1px solid var(--tm-line)}.chooser-summary{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:18px}.chooser-summary strong{font-size:15px;font-weight:600}.chooser-summary span{font-size:12px;color:var(--tm-text)}.chooser-confirm .tm-btn{width:100%}.chooser-confirm .tm-btn[aria-disabled=true]{opacity:.5;pointer-events:none}.chooser-confirm p{font-size:11px;color:var(--tm-text);margin:13px 0 0!important;text-align:center;line-height:1.6}.video-dialog{width:min(960px,calc(100% - 32px));background:var(--tm-ink)}.video-dialog .dialog-heading h2{color:white!important;font-size:19px!important}.video-dialog .video-area{aspect-ratio:16/9}.video-dialog iframe{height:100%;width:100%;border:0}.video-dialog .video-fallback{display:block;color:white;text-align:center;font-size:12px;padding:15px;text-decoration:underline}.mobile-start{display:none}.tm-dialog:focus{outline:none}
@keyframes math-flow{to{transform:translateX(-50%)}}@keyframes draw-curve{to{stroke-dashoffset:0}}@keyframes point-pulse{50%{r:12;opacity:.72}}@keyframes bob{50%{transform:translateY(-8px) rotate(6deg)}}.motion-paused *, .motion-paused *:before,.motion-paused *:after{animation-play-state:paused!important}.motion-paused .hero-curve{stroke-dashoffset:0}
@media(min-width:1450px){.tm-wrap{max-width:1280px}.hero-layout{gap:90px}.hero-message h1{font-size:78px!important}}
@media(max-width:1160px){.tm-wrap{width:calc(100% - 60px)}.nav-inner{gap:24px}.tm-nav{gap:17px;font-size:13px}.tm-drop-toggle{font-size:13px}.tm-nav-actions{gap:15px}.tm-brand>span{font-size:26px}.tm-brand img{width:30px;height:38px}.hero-layout{gap:40px}.hero-message h1{font-size:59px!important}.hero-composition{padding-left:15px}.insight-card{left:-15px;bottom:53px;padding:14px 17px}.insight-card strong{font-size:11px}.insight-card small{font-size:10px}.equation-one{font-size:22px;right:-10px}.teacher-layout{gap:65px}.lesson-layout{gap:50px}.pricing-layout{gap:40px;grid-template-columns:.7fr 1.3fr}.plan-card{padding:30px 21px 24px}.plan-card h3>span{font-size:43px}.footer-top{gap:35px}.legacy-page .wrap{width:calc(100% - 60px)}}
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.motion-paused .hero-curve{animation:none!important;stroke-dashoffset:0}

/* Make the audience and subject unmistakable on arrival. */
.hero-message .hero-label{display:inline-flex;max-width:100%;gap:10px;margin-bottom:26px;padding:12px 17px;border:1px solid #efc8b4;border-left:4px solid var(--tm-orange);border-radius:6px;background:#fff0e6;color:#8b391d;font-size:19px;font-weight:600;letter-spacing:0;line-height:1.45}
.hero-label strong{font-weight:800;white-space:nowrap}.hero-message .hero-label .ontario-mark{font-size:24px;flex-shrink:0}.hero-message p .hero-purpose{display:block;color:var(--tm-ink);font-weight:700;margin-bottom:8px}
@media(max-width:760px){.hero-message .hero-label{font-size:17px;padding:11px 13px;margin-bottom:24px}.hero-message .hero-label .ontario-mark{font-size:22px}}
@media(max-width:480px){.hero-message .hero-label{font-size:16px;padding:10px 12px;gap:8px}.hero-message .hero-label .ontario-mark{font-size:20px}}

.hero-purpose .grade-range{white-space:nowrap}

/* Keep student stories readable when a remote thumbnail is unavailable. */
.legacy-page .yt-facade.thumbnail-unavailable{background:var(--tm-ink)}
.legacy-page .thumbnail-unavailable .yt-play{background:#c64a20}
.legacy-page .thumbnail-unavailable::after{content:'Watch student story';position:absolute;bottom:18px;left:16px;right:16px;color:white;text-align:center;font-size:14px;font-weight:600;pointer-events:none}
.tm-site.legacy-page .btn-primary{background:#c64a20}
.tm-site.legacy-page .btn-primary:hover{background:#ac3c18}
.tm-site.legacy-page details.sol summary{color:#b54d28}
.tm-site .video-fallback{font-size:14px;padding:12px 20px}

.hero-grade-line{display:inline-block;white-space:nowrap}
@media(max-width:760px){.hero-grade-line{display:block}.hero-grade-line>span{display:none}}

/* The graph stays legible during its drawing sequence and when motion is paused. */
.graph-guides path{fill:none;stroke:#f5b18d;stroke-width:1.2;stroke-dasharray:4 6;opacity:.65}
.graph-readout rect{fill:#11293d;stroke:#6c859944;stroke-width:1}
.graph-readout text{fill:#dbe7ed;font:16px 'DM Sans',sans-serif;font-variant-numeric:tabular-nums;white-space:pre}
.graph-tracer{pointer-events:none}
.course-plot{display:block;pointer-events:none}
.graph-motion-toggle{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:32px;min-width:66px;padding:5px 9px;border:1px solid #b8ccd345;border-radius:6px;background:#ffffff08;color:#d6e4eb;font:500 11px 'DM Sans',sans-serif;letter-spacing:.02em;cursor:pointer}
.graph-motion-toggle:before{content:'Ⅱ';font:12px sans-serif}
.graph-motion-toggle[aria-pressed=true]:before{content:'▶';font-size:9px}
.graph-motion-toggle:hover{background:#ffffff16;border-color:#c3d4df8a}
.graph-motion-toggle:focus-visible{outline:2px solid #ffb286;outline-offset:3px}
.math-window-top .graph-motion-toggle{order:-1}
.math-window-top .window-dots{order:2}
.graph-motion-toggle:disabled{cursor:default;opacity:.75}
@media(max-width:760px){.graph-motion-toggle{min-height:36px;min-width:64px}.math-window-top{padding:10px 14px}.graph-readout text{font-size:24px}.graph-readout rect{width:282px}}