/* Compact identity and teaching-resource disclosure. */
.brand:before{display:none}.brand{display:inline-flex;align-items:center;gap:.65rem}.brand img{width:42px;height:42px;object-fit:contain;flex:none}.brand span{line-height:1.2}.language-switch{gap:.25rem}.language-switch button{min-width:42px;padding:.4rem .65rem;min-height:36px;font-size:.75rem}.home-studio-hero{grid-template-columns:1.12fr 1fr;gap:3.5rem;padding:1.4rem 0 1.5rem}.home-studio-hero h1{font-size:clamp(2.25rem,4.1vw,3.55rem);max-width:17ch}.home-studio-hero .lead{font-size:1rem;line-height:1.65;margin:1rem 0 1.4rem}.home-start .home-years-heading{font-size:1rem;letter-spacing:0;margin:1.2rem 0 .7rem}.home-start .year-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:.7rem;margin:0}.home-start .year-card{padding:1.05rem 1.2rem;min-height:130px;gap:.4rem}.home-start .year-card strong{font:650 2rem Inter,system-ui,sans-serif;color:#17684e}.home-start .year-card .quiet{font-size:.77rem}.home-start .year-card>span:last-child{font-size:.8rem}.home-exploration .home-geometry-preview svg{height:250px}.home-pathway{padding:1rem 0;border-top:1px solid #dce5df;border-bottom:1px solid #dce5df;margin:1.2rem 0;color:#4f6b5b}.home-pathway summary{cursor:pointer;font-size:.9rem;font-weight:600}.home-pathway .steps-preview{margin:1rem 0 .2rem}.home-quick>h2{font-size:1.2rem}.chapter-lessons-title{font-size:1.2rem;margin:1.5rem 0 1rem}.chapter-ppts>summary{cursor:pointer;font-weight:650;font-size:1.08rem;color:#234c3d}.chapter-ppts[open]>summary{margin-bottom:1.25rem}.chapter-ppts:not([open]){padding:1.2rem 1.4rem}.chapter-ppts[open] .chapter-resource-heading h2{font-size:1.05rem}.chapter-tabs a[aria-current]{color:#17684e!important}
@media(max-width:900px){.home-studio-hero{gap:1.6rem}.home-studio-hero h1{font-size:2.7rem}.home-exploration .home-geometry-preview svg{height:200px}.brand img{width:36px;height:36px}}
@media(max-width:620px){.home-studio-hero{grid-template-columns:1fr;gap:1.4rem;padding:.5rem 0 1rem}.home-studio-hero h1{font-size:2.25rem}.home-studio-hero .lead{font-size:.96rem}.home-start .year-card{min-height:123px;padding:1rem}.home-exploration .home-geometry-preview svg{height:175px}.home-future{margin:.5rem 0 1.1rem}.brand img{width:32px;height:32px}.brand{gap:.4rem}.language-switch button{min-width:38px;min-height:32px;padding:.3rem .5rem}.chapter-ppts:not([open]){padding:1rem}.chapter-ppts>summary{font-size:.95rem}}

.lesson-steps .step-short{display:none}
@media(max-width:800px){.lesson-steps .step-full{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.lesson-steps .step-short{display:block;font-size:12px;line-height:1.4;white-space:nowrap}.lesson-steps a{padding:10px 2px}}

/* Approved green-and-gold identity. The source artwork is used without redrawing. */
:root{--brand-green:#045334;--brand-gold:#e7a62f;--brand-ivory:#faf7ef;--ink:#193b31;--accent:#045334;--paper:#f6f8f7;--line:#dce5df}
body{background:var(--paper);color:var(--ink)}
header{padding:12px max(28px,calc((100vw - 1240px)/2));min-height:96px;gap:24px;background:#fff;border-bottom:1px solid var(--line);align-items:center}
.brand{flex:none;line-height:1;gap:0}.brand img.brand-wordmark{width:270px;height:auto;max-width:none;display:block;object-fit:contain}.brand:before{display:none}
header nav{gap:4px;align-items:center}header nav a{padding:9px 11px;border-radius:7px;font-size:.875rem;color:#496657}header nav a:hover{background:#eef4f0;color:var(--brand-green)}header nav a[href="#annee/6e"],header nav a[href="#annee/5e"]{font-size:1rem;font-weight:650}
.language-switch{display:flex;gap:3px;padding:4px;background:#f4f7f5;border:1px solid #e0e6e1;border-radius:9px}.language-switch button{min-width:38px;min-height:34px;border:0!important;border-radius:5px;background:transparent;font-size:.8125rem;padding:5px 8px;color:#526f5e}.language-switch button[aria-pressed=true]{background:var(--brand-green);color:white}
main{max-width:1296px;padding:34px 28px 60px}h1,h2,h3{color:var(--ink)}h1{font-size:clamp(2rem,3.2vw,2.65rem);line-height:1.16;font-weight:700}.eyebrow{color:#52735f}.quiet{font-size:.875rem}
button.primary,.button.primary,.gs-investigate [data-action="check"]{background:var(--brand-green);border-color:var(--brand-green);color:#fff}.button.primary:hover,button.primary:hover,.gs-investigate [data-action="check"]:hover{background:#083f2c;border-color:#083f2c}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid #b77916;outline-offset:4px}
.home-studio-hero{grid-template-columns:minmax(0,1.1fr) minmax(0,.85fr);gap:64px;align-items:center;padding:25px 0 22px}.home-studio-hero h1{font-size:clamp(2.5rem,4.5vw,3.65rem);max-width:15ch;line-height:1.08;letter-spacing:-.05em;margin:13px 0 20px}.home-studio-hero .lead{font-size:1rem;line-height:1.7;color:#5e7468;max-width:47ch;margin:0 0 26px}.home-studio-hero .eyebrow{font-size:.75rem;letter-spacing:.1em;margin:0}.home-start .home-years-heading{font-size:.875rem;font-weight:600;letter-spacing:0;margin:0 0 11px;color:#466452}
.home-start .year-card{position:relative;min-height:128px;padding:22px!important;gap:8px;background:var(--brand-green)!important;border:1px solid var(--brand-green)!important;border-radius:12px;transition:background .15s,transform .15s}.home-start .year-card strong{font:650 2.15rem/1.15 Inter,system-ui,sans-serif;color:white!important;letter-spacing:-.025em}.home-start .year-card .quiet{display:none}.home-start .year-card>span:last-child{font-size:.875rem;color:#e2eee5;margin:0}.home-start .year-card:after{content:'↗';position:absolute;right:21px;top:20px;color:var(--brand-gold);font-size:1.35rem;font-weight:450}.home-start .year-card:hover{background:#0b6342!important;transform:translateY(-2px)}
.home-exploration{border:1px solid #d6e3db;border-radius:17px;box-shadow:none}.home-exploration:hover{border-color:#94ad9d;box-shadow:0 10px 28px #123b2710}.home-geometry-preview{background:#eff5f1}.home-exploration .home-geometry-preview svg{width:100%;height:auto;aspect-ratio:440/275}.home-exploration .home-feature-title{font-size:1.075rem;padding:20px 23px 0}.home-exploration>span+span{padding-inline:23px;font-size:.875rem;line-height:1.6;margin:7px 0 18px}.home-exploration>strong{padding-inline:23px;font-size:.875rem;color:var(--brand-green);margin-bottom:21px}.home-exploration>strong>span{color:#92631d}.home-future{font-size:.875rem;margin:8px 0 29px}.home-pathway{font-size:.875rem;padding:18px 0}.home-quick{margin-top:28px}.home-quick>h2{font-size:1.2rem}.quick-links>a{padding:11px 15px;font-size:.875rem;background:#fff;border-radius:8px}.quick-links>a:hover{border-color:#99ae9d;color:var(--brand-green)}
.chapter-grid{gap:16px}.chapter-tile{border:1px solid var(--line);border-radius:13px;padding:22px;min-height:172px;position:relative;box-shadow:none}.chapter-tile:after{content:'↗';position:absolute;right:21px;top:18px;color:#6c8877;font-size:1.25rem}.chapter-tile h3{font-size:1.3rem;line-height:1.3;margin:17px 0 18px;max-width:25ch}.chapter-code{font-size:.75rem;background:#edf4ee;color:#3b684d;padding:4px 8px;border-radius:5px}.chapter-tile .tile-bottom{font-size:.8125rem}.chapter-tile .badge{font-size:.8125rem}.chapter-tile .tile-bottom>span:last-child{display:none}.chapter-tile:hover{border-color:#93ac99;box-shadow:0 5px 16px #173b2809}.chapter-planned{background:#f1f4f2}.programme-domain>h2{font-size:1.125rem;color:#496753}.chapter-tabs{gap:24px;padding:0;margin:0 0 26px}.chapter-tabs a{font-size:.875rem;margin:0;padding:13px 0;border-bottom:2px solid transparent;border-radius:0}.chapter-tabs a[aria-current]{box-shadow:none;border-bottom-color:var(--brand-green)}
.chapter-lessons-title{font-size:1rem;color:#526f5c;margin:0 0 16px}.compact-lessons{max-width:none;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-bottom:23px}.lesson-tile{min-height:103px;padding:20px 18px;border:1px solid var(--line);border-radius:12px;font-size:1rem;gap:15px;line-height:1.4}.lesson-number{width:34px;height:38px;flex-basis:34px;border-radius:8px;background:#edf3ee;color:#416b4d;font-size:.875rem}.lesson-tile .lesson-reference{font-size:.75rem;color:#6a8170;letter-spacing:.02em}.lesson-tile:hover{background:white;border-color:#84a78e;box-shadow:0 4px 14px #193f2808}.lesson-tile.unavailable{opacity:1;color:#697b6d;background:#f1f4f2}
.chapter-ppts,.chapter-review{max-width:none;background:transparent;border:1px solid var(--line);border-radius:11px;margin:12px 0}.chapter-ppts>summary,.chapter-review>summary{font-size:.9375rem;font-weight:550;color:#476b51}.chapter-ppts[open],.chapter-review[open]{background:#fff}.chapter-review{padding:8px 22px}.resource-directory{max-width:none;gap:16px}.resource-link{border-radius:12px;padding:24px}.resource-link h2{font-size:1.25rem}.resource-link p{font-size:1rem}
.lesson-pane{border-radius:15px;box-shadow:none}.lesson-heading h1{font-size:clamp(1.7rem,2.6vw,2.25rem)}.lesson-heading .lead{font-size:1rem}.lesson-steps a{font-size:.875rem;line-height:1.45}.lesson-steps a[aria-current]{background:white!important;border-color:#bfd6c4;color:var(--brand-green)!important}.lesson-steps a[aria-current] b{background:#e0eddf!important;color:var(--brand-green)!important}.geometry-studio{border-color:#d9e6dd;border-radius:12px}.gs-prompt{font-size:.9375rem}.gs-heading h3{font-size:1.2rem}.gs-investigate>p{font-size:.875rem}.geometry-studio label{font-size:.875rem}.gs-metric>span,.gs-canvas-caption{font-size:.75rem}.gs-metric>strong{font-size:1rem}.gs-feedback{font-size:.875rem}.gs-svg-label{font-family:inherit}.geometry-studio button{font-size:.875rem}.gs-utility button{font-size:.75rem}.resource-meta,.resource-host{font-size:.8125rem}
footer{border-color:var(--line);color:#6e8575;font-size:.8125rem;padding:24px max(28px,calc((100vw - 1240px)/2))}
@media(max-width:1100px){header{padding:12px 24px;gap:18px}.brand img.brand-wordmark{width:245px}header nav a{padding:8px;font-size:.8125rem}.home-studio-hero{gap:38px}.compact-lessons{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:800px){header{padding:10px 20px;gap:12px}.brand img.brand-wordmark{width:240px}header nav{order:3;width:100%;margin:0;gap:9px}header nav a{font-size:.875rem;padding:8px 10px}.language-switch{margin-left:auto}main{padding:27px 20px 45px}.home-studio-hero{gap:25px}.home-studio-hero h1{font-size:2.5rem}.home-start .year-card{padding:18px!important}.home-start .year-card>span:last-child{font-size:.8125rem}.lesson-steps .step-short{font-size:.75rem}.lesson-steps a{padding:10px 2px}}
@media(max-width:600px){header{padding:9px 16px;gap:8px;min-height:0}.brand img.brand-wordmark{width:205px;height:auto}.language-switch{padding:3px}.language-switch button{min-width:32px;min-height:32px;padding:4px 6px;font-size:.75rem}header nav{gap:2px;justify-content:space-between}header nav a{font-size:.75rem;padding:7px 5px}header nav a[href="#annee/6e"],header nav a[href="#annee/5e"]{font-size:.9375rem}main{padding:23px 16px 38px}h1{font-size:2rem}.home-studio-hero{grid-template-columns:1fr;gap:26px;padding:8px 0 18px}.home-studio-hero h1{font-size:2.6rem;line-height:1.08;max-width:13ch}.home-studio-hero .lead{font-size:.9375rem;line-height:1.65;margin-bottom:24px}.home-start .year-card{min-height:124px;padding:20px!important}.home-start .year-card strong{font-size:2rem}.home-start .year-card>span:last-child{font-size:.8125rem}.home-exploration .home-geometry-preview svg{height:210px;aspect-ratio:auto}.home-exploration .home-feature-title{font-size:1.075rem}.home-future{font-size:.875rem}.quick-links{display:grid;grid-template-columns:1fr}.chapter-grid,.compact-lessons,.resource-directory{grid-template-columns:1fr}.chapter-tile{min-height:148px;padding:20px}.chapter-tile h3{font-size:1.3rem}.chapter-tabs{gap:19px}.chapter-tabs a{font-size:.8125rem;padding:11px 0}.chapter-lessons-title{font-size:.9375rem}.lesson-tile{min-height:84px;padding:17px 16px;gap:15px}.chapter-review{padding:8px 16px}.chapter-ppts>summary,.chapter-review>summary{font-size:.875rem}.geometry-studio{padding:12px}.gs-heading h3{font-size:1.075rem}.gs-prompt{font-size:.875rem}.geometry-studio button{font-size:.8125rem}.geometry-studio label{font-size:.8125rem}.gs-utility button{font-size:.75rem}.gs-canvas-caption{font-size:.75rem;flex-wrap:wrap}.gs-metric>strong{font-size:.9375rem}.gs-keyboard{font-size:.8125rem}.gs-note{font-size:.8125rem!important}.lesson-steps .step-short{font-size:.75rem}.resource-link{padding:21px}footer{padding:23px 16px;font-size:.75rem}}
@media(max-width:350px){.brand img.brand-wordmark{width:182px}header{padding-inline:12px}.language-switch button{min-width:30px}}
@media(prefers-reduced-motion:reduce){.home-start .year-card{transition:none}.home-start .year-card:hover{transform:none}}