/* V10: readable previews and responsive finishing. */
/* V10.1: stronger proof strip; compact, equal mobile cells. */
.proof-strip{background:#f1f5f7;padding:20px 0;border-bottom:1px solid #dae3e8}
.proof-grid{gap:12px;align-items:stretch}
.proof-grid div{background:#fff;border:1px solid #d6e1e8!important;border-radius:8px;padding:22px 18px;position:relative;min-width:0;box-shadow:0 5px 16px #07192b05}
.proof-grid div:before{content:'';display:block;width:28px;height:3px;background:#ed9b2b;margin-bottom:13px;border-radius:2px}
.proof-grid strong{font-weight:800;line-height:1.4;color:#07192b;display:block}
.proof-grid span{display:block;margin-top:7px;line-height:1.5;color:#526674}
#lessonError{font-size:14px;margin:0;padding:16px;background:#fff5df;color:#07192b}#lessonError a{font-weight:800;text-decoration:underline}
@media(max-width:600px){.proof-strip{padding:16px 0}.proof-strip .proof-grid{gap:10px;grid-template-columns:1fr 1fr}.proof-strip .proof-grid div{padding:16px 12px;display:flex;flex-direction:column;align-items:flex-start}.proof-strip .proof-grid strong{font-size:11px;letter-spacing:.015em;min-height:31px;display:flex;align-items:center}.proof-strip .proof-grid span{font-size:12px;margin-top:5px}.proof-strip .proof-grid div:before{margin-bottom:9px}}
[hidden]{display:none!important}
.hero-partner.btn{margin-top:12px;min-height:48px;justify-content:center;border:1px solid #ffffff80;padding:0 24px}
.menu-btn span{display:block;width:25px;height:2px;margin:5px auto;transition:transform .2s,opacity .2s}
.menu-btn[aria-expanded=true] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-btn[aria-expanded=true] span:nth-child(2){opacity:0}
.menu-btn[aria-expanded=true] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.school-flow{display:grid;grid-template-columns:.75fr 1.2fr 1.2fr 1fr .85fr;gap:5px}
.school-flow li{margin:0;padding:8px 0;border:0;font-weight:800;white-space:nowrap;font-size:13px}
.ecosystem-map{margin-inline:auto}
.learning-switch{display:flex;gap:8px;margin-bottom:24px}
.learning-switch button,.lesson-choices button,.book-controls button{font-weight:700;font-size:14px;line-height:1.3;font-family:inherit;border:1px solid #cad7df;background:white;color:#07192b;padding:12px 18px;min-height:46px;border-radius:6px;cursor:pointer}
.learning-switch button[aria-pressed=true],.lesson-choices button[aria-pressed=true]{background:#07192b;color:white;border-color:#07192b}
.learning-layout{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(0,1fr);gap:32px;align-items:start}
.learning-main{min-width:0;background:#f2f5f7;border:1px solid #dbe4e9;border-radius:12px;overflow:hidden}
.lesson-screen{background:radial-gradient(ellipse at center,#253d50,#07192b);height:490px;display:flex;align-items:center;justify-content:center}
.lesson-screen video{display:block;width:100%;height:100%;object-fit:contain}
.lesson-choices{display:flex;gap:8px;padding:16px;flex-wrap:wrap}
.lesson-choices button{font-size:12px}
.book-page{padding:0;background:white}
.book-page img{display:block;width:100%;height:auto;aspect-ratio:3/2;object-fit:contain}
.book-page>span{margin:8px auto}
.book-controls{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:12px 16px}
.book-controls button{font-size:13px;padding:10px 12px}
.book-controls button:disabled{opacity:.4;cursor:default}
#bookStatus{font-size:13px;white-space:nowrap}
#bookCaption{font-size:14px;text-align:center;margin:0;padding:0 12px 18px;font-weight:700}
.book-cover{border:1px solid #dbe4e9;background:white;border-radius:10px;overflow:hidden;padding:0;width:100%;text-align:left;cursor:pointer;color:#07192b;font-family:inherit}
.book-cover img{display:block;width:100%;height:auto}
.book-cover span{display:flex;justify-content:space-between;padding:18px;font-size:15px;font-weight:800}
.learning-note{padding:28px 4px}.learning-note h3{font-size:28px;margin:12px 0;letter-spacing:-.035em}.learning-note p{font-size:15px;max-width:320px}
.teacher-support{display:flex;justify-content:space-between;align-items:center;gap:24px;border-top:1px solid #cedbe2;margin-top:32px;padding-top:24px}
.teacher-support p{font-size:15px;margin:8px 0 0}.teacher-support .text-link{white-space:nowrap}
.cta-copy{max-width:430px}
@media(max-width:820px){.learning-layout{grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:20px}.lesson-screen{height:380px}.learning-note{padding:20px 0}.learning-note h3{font-size:23px}.teacher-support{align-items:flex-start;flex-direction:column;gap:12px}}
@media(max-width:600px){.hero-partner.btn{display:flex;width:100%;margin-top:10px;font-size:12px}.school-flow{gap:3px}.school-flow li{font-size:clamp(10px,2.9vw,13px);padding:8px 0;margin:0}.school-flow li:before{font-size:11px;font-weight:500}.learning-layout{display:block}.learning-aside{display:none}.learning-switch{gap:8px}.learning-switch button{flex:1;font-size:13px;padding:12px 8px}.lesson-screen{height:min(105vw,460px)}.lesson-choices{gap:8px;padding:12px}.lesson-choices button{flex:1;padding:10px 8px}.book-controls{padding:12px 10px}.teacher-support{margin-top:24px}.teacher-support p{font-size:14px}.final-cta,.cta-inner{min-height:780px}.cta-copy{max-width:none}.cta-picture{width:100%}.cta-overlay{background:linear-gradient(#041526 0%,#041526 32%,transparent 53%)}.ecosystem-section .section-heading{gap:18px}}