/* Page-local composition. Brand fonts, palette and control tokens come from flow.css. */
.teacher-page{--t-ink:var(--flow-brand-deep);--t-blue:var(--flow-brand-primary);--t-soft:var(--flow-brand-soft);--t-paper:var(--flow-brand-surface);--t-teal:var(--flow-brand-accent);color:var(--t-ink);background:var(--t-paper)}
.teacher-page .t-wrap{width:min(1200px,calc(100% - 96px));margin-inline:auto}
.teacher-page a,.teacher-page button{touch-action:manipulation}
.teacher-page .t-header{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-block:20px}
.teacher-page nav{display:flex;align-items:center;gap:28px}
.teacher-page nav a,.teacher-page .t-return,.teacher-page .t-more,.teacher-page .t-reply>a:not(.flow-btn){display:inline-flex;align-items:center;min-height:44px;text-underline-offset:6px}
.teacher-page nav a{color:var(--t-ink);text-decoration:none;font-size:15px}
.teacher-page .t-brand{display:block;flex-shrink:0}
.teacher-page .t-skip{position:fixed;inset-block-start:12px;inset-inline-start:16px;z-index:10;background:var(--t-paper);padding:12px;transform:translateY(-180%)}
.teacher-page .t-skip:focus{transform:none}
.teacher-page #main:focus{outline:none}
.teacher-page .t-hero{position:relative;isolation:isolate;background:var(--flow-brand-canvas);padding-block:36px 0;overflow:clip}
.teacher-page .t-hero::before{content:'';position:absolute;inset:0;z-index:-2;background:radial-gradient(ellipse at 20% 35%,rgb(36 87 167 / .09),transparent 65%),linear-gradient(rgb(36 87 167 / .045) 1px,transparent 1px),linear-gradient(90deg,rgb(36 87 167 / .045) 1px,transparent 1px);background-size:auto,64px 64px,64px 64px}
.teacher-page .t-grid{position:absolute;inset:0;width:100%;height:100%;z-index:-1;pointer-events:none}
.teacher-page .t-intro-sheet{display:grid;grid-template-columns:1.12fr 1fr;align-items:center;gap:56px;padding-block:28px 44px}
.teacher-page .t-copy{max-width:580px}
.teacher-page .t-kicker{font-size:14px;color:var(--t-teal);margin-bottom:20px;font-weight:600}
.teacher-page h1{font-size:clamp(34px,4vw,56px);font-weight:700;line-height:1.5}
.teacher-page em{font-style:normal;color:var(--t-blue)}
.teacher-page .t-lead{font-size:18px;line-height:1.95;margin-block:22px 26px;max-width:530px}
.teacher-page .t-actions{display:flex;align-items:flex-start;flex-direction:column;gap:8px}
.teacher-page .t-primary{font-size:17px;min-height:52px;gap:24px;position:relative;overflow:hidden;transform:none}
.teacher-page .t-primary:active{background:var(--t-ink)}
.teacher-page .t-primary::after{content:'';position:absolute;inset:0;pointer-events:none;background:linear-gradient(110deg,transparent 25%,rgb(255 255 255 / .22) 48%,transparent 70%);transform:translateX(120%)}
.teacher-page .t-return{font-size:15px}
.teacher-page .t-more{margin-top:18px;gap:16px;color:var(--t-ink);font-size:15px;text-decoration:none}
.teacher-page .t-scene{margin:0;position:relative;min-width:0;padding:24px 16px 0;perspective:1000px}
.teacher-page .t-notebook{position:relative;padding:26px 28px 0;background:var(--t-paper);border-radius:4px 4px 28px 4px;box-shadow:0 20px 55px rgb(23 37 84 / .07);transform:translate3d(var(--tx,0px),var(--ty,0px),0) rotate(-3deg) rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg));transition:transform 200ms var(--flow-motion-ease)}
.teacher-page .t-notebook::before{content:'';position:absolute;inset-block:0;inset-inline-end:16px;border-inline-start:1px solid var(--t-soft)}
.teacher-page .t-notebook-title{font-size:32px;line-height:1.6;padding-bottom:28px;font-weight:400}
.teacher-page .t-notebook-title strong{font-weight:600}
.teacher-page .t-scene figcaption{font-size:14px;margin-top:26px;text-align:center}
.teacher-page .t-orbit{position:absolute;inset:8% -3% 14%;border:1px solid rgb(36 87 167 / .16);border-radius:50%;transform:rotate(26deg);pointer-events:none}
.teacher-page .t-orbit::after{content:'';position:absolute;inset:0 auto auto 0;width:36px;height:8px;border-radius:50%;background:radial-gradient(ellipse 7px 4px at 80% 50%,rgb(36 87 167 / .85),transparent),linear-gradient(90deg,transparent,rgb(36 87 167 / .38),transparent);filter:blur(.65px);offset-path:ellipse(50% 50% at 50% 50%);offset-anchor:80% 50%;offset-distance:22%;offset-rotate:auto}
.teacher-page .t-values{list-style:none;margin:0;padding:30px 0 34px;display:grid;grid-template-columns:repeat(3,1fr);gap:36px;border-top:0}
.teacher-page .t-values li{display:flex;gap:16px}
.teacher-page .t-values li>span{color:var(--t-teal);font-size:16px}
.teacher-page .t-values h2{font-size:19px;font-weight:600;margin-bottom:5px}
.teacher-page .t-values p{font-size:15px}
.teacher-page .t-journey{display:grid;grid-template-columns:1fr 1.25fr;gap:90px;padding-block:96px}
.teacher-page .t-journey h2,.teacher-page .t-invitation h2{font-size:clamp(28px,2.65vw,38px);line-height:1.55}
.teacher-page .t-journey-heading>p:last-child{margin-top:20px;font-size:17px;max-width:320px}
.teacher-page .t-steps{list-style:none;margin:0;padding:0;position:relative;--route-progress:1}
.teacher-page .t-steps::before,.teacher-page .t-steps::after{content:'';position:absolute;inset-block:24px 52px;inset-inline-start:23px;width:2px;background:var(--t-soft)}
.teacher-page .t-steps::after{background:var(--t-teal);transform:scaleY(var(--route-progress));transform-origin:top;opacity:.7}
.teacher-page .t-steps li{position:relative;display:grid;grid-template-columns:48px 1fr;gap:24px;padding-bottom:32px}
.teacher-page .t-steps li:last-child{padding-bottom:0}
.teacher-page .t-step-number{position:relative;z-index:1;display:grid;place-items:center;width:48px;height:48px;border:1px solid var(--t-soft);border-radius:50%;background:var(--t-paper);color:var(--t-blue);font-size:19px}
.teacher-page .t-steps h3{font-size:21px;margin-block:5px 6px;font-weight:600}
.teacher-page .t-steps p{font-size:16px;line-height:1.85;max-width:470px}
.teacher-page .t-invitation{background:var(--t-ink);color:var(--t-paper);padding-block:62px}
.teacher-page .t-invitation-layout{display:flex;justify-content:space-between;align-items:center;gap:40px}
.teacher-page .t-invitation .t-kicker{color:var(--t-soft);margin-bottom:12px}
.teacher-page .t-invitation h2+p{margin-top:16px;font-size:18px}
.teacher-page .t-reply{display:flex;flex-direction:column;align-items:center;gap:10px;background:var(--t-paper);padding:28px 32px;border-radius:4px}
.teacher-page .t-reply>a:not(.flow-btn){font-size:15px}
.teacher-page .t-footer{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-block:24px;font-size:14px}
.teacher-page .t-footer nav{gap:20px}
.teacher-page .t-motion{background:transparent;border:1px solid var(--t-soft);border-radius:8px;color:var(--t-ink);padding:6px 14px;min-height:44px;font-size:14px}
.teacher-page .t-next{max-width:720px;margin:70px auto 100px;padding:44px;background:var(--flow-brand-canvas);border-radius:4px}
.teacher-page .t-next h1{font-size:34px}
.teacher-page .t-next p{margin-block:20px;font-size:18px}
.teacher-page .t-next .t-actions{margin-top:30px}
@keyframes t-arrive{from{transform:translateY(12px)}to{transform:none}}
@keyframes t-orbit-travel{to{offset-distance:122%}}
@keyframes t-flow{from{stroke-dashoffset:1}to{stroke-dashoffset:0}}
@keyframes t-shimmer{to{transform:translateX(-120%)}}
@media(hover:hover) and (pointer:fine){.teacher-page a:hover{text-decoration:none}.teacher-page .t-primary:hover{background:var(--t-ink);transform:none;text-decoration:none}.teacher-page .t-primary:hover::after{animation:t-shimmer 650ms ease-out}.teacher-page.motion-enabled .t-hero.in-view .t-orbit::after{animation:t-orbit-travel 6500ms linear infinite}.teacher-page.motion-enabled .t-copy>*{animation:t-arrive 600ms var(--flow-motion-ease) both}.teacher-page.motion-enabled .t-copy>:nth-child(3){animation-delay:60ms}.teacher-page.motion-paused *,.teacher-page.motion-paused *::after,.teacher-page .t-hero:not(.in-view) *,.teacher-page .t-hero:not(.in-view) *::after{animation-play-state:paused!important}}
@media(max-width:1000px){.teacher-page .t-wrap{width:calc(100% - 56px)}.teacher-page .t-intro-sheet{gap:26px}.teacher-page .t-notebook{padding-inline:22px}.teacher-page .t-notebook-title{font-size:28px}.teacher-page .t-journey{gap:40px}.teacher-page .t-values{gap:20px}.teacher-page .t-invitation-layout{gap:24px}.teacher-page .t-reply{padding:24px}}
@media(max-width:767px){.teacher-page .t-wrap{width:calc(100% - 36px)}.teacher-page .t-header{padding-block:12px;gap:16px;align-items:center}.teacher-page .t-brand img{width:82px;height:auto}.teacher-page nav{gap:8px;flex-wrap:wrap}.teacher-page .t-header nav{justify-content:flex-end;gap:0 16px}.teacher-page nav a{font-size:14px}.teacher-page .t-hero{padding-top:16px}.teacher-page .t-intro-sheet{grid-template-columns:1fr;padding-block:14px 26px;gap:20px}.teacher-page .t-kicker{font-size:13px;margin-bottom:16px}.teacher-page h1{font-size:clamp(32px,8.8vw,44px)}.teacher-page .t-lead{font-size:17px;margin-block:18px 20px}.teacher-page .t-primary{font-size:16px;gap:16px}.teacher-page .t-return{font-size:14px}.teacher-page .t-more{margin-top:8px}.teacher-page .t-scene{width:min(100%,430px);margin-inline:auto;padding:12px 12px 0}.teacher-page .t-notebook-title{font-size:26px;padding-bottom:12px}.teacher-page .t-notebook{transform:rotate(-2deg);padding-top:18px}.teacher-page .t-scene figcaption{margin-top:16px;font-size:13px}.teacher-page .t-values{grid-template-columns:1fr;gap:18px;padding-block:24px}.teacher-page .t-values li{gap:14px}.teacher-page .t-values h2{font-size:18px;margin:0}.teacher-page .t-values p{font-size:15px}.teacher-page .t-journey{grid-template-columns:1fr;padding-block:48px;gap:30px}.teacher-page .t-journey-heading>p:last-child{max-width:none;margin-top:12px;font-size:16px}.teacher-page .t-steps li{gap:16px;padding-bottom:24px;grid-template-columns:40px 1fr}.teacher-page .t-step-number{width:40px;height:40px;font-size:18px}.teacher-page .t-steps::before,.teacher-page .t-steps::after{inset-inline-start:19px;inset-block:20px 64px}.teacher-page .t-steps h3{font-size:19px;margin-top:3px}.teacher-page .t-steps p{font-size:16px}.teacher-page .t-invitation{padding-block:36px}.teacher-page .t-invitation-layout{align-items:stretch;flex-direction:column;gap:24px}.teacher-page .t-invitation h2{font-size:27px}.teacher-page .t-invitation h2+p{font-size:16px}.teacher-page .t-reply{padding:22px 16px}.teacher-page .t-footer{gap:8px;padding-block:20px}.teacher-page .t-next{margin-block:30px 50px;padding:24px}.teacher-page .t-next h1{font-size:28px}}
@media(prefers-reduced-motion:reduce){.teacher-page .t-motion{display:none}.teacher-page *,.teacher-page *::before,.teacher-page *::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.teacher-page .t-notebook{transform:none}.teacher-page .t-steps::after{transform:none}.teacher-page .t-grid{display:none}}
@media(forced-colors:active){.teacher-page .t-grid,.teacher-page .t-orbit{display:none}.teacher-page .t-notebook,.teacher-page .t-step-number,.teacher-page .t-reply{border:1px solid CanvasText}.teacher-page .t-steps::before{background:CanvasText}}

/* Review refinements: shared return action, deliberate navigation, scroll-led chapters. */
.teacher-page .t-return{display:flex;align-items:center;flex-wrap:wrap;gap:4px 12px;color:var(--t-ink);font-size:14px;min-height:44px}
.teacher-page .t-return>span{opacity:.8}
.teacher-page .t-login{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:8px 16px;border-radius:8px;background:var(--t-soft);color:var(--t-ink);font-weight:600;text-decoration:none;transition:background-color 180ms ease-out,transform 180ms ease-out}
.teacher-page .t-header nav a,.teacher-page .t-footer nav a{border-radius:6px;padding-inline:8px;transition:background-color 180ms ease-out,color 180ms ease-out}
.teacher-page a:focus-visible{outline:2px solid var(--t-blue);outline-offset:4px}
.teacher-page .t-footer{display:grid;grid-template-columns:1fr;justify-items:center;text-align:center;gap:8px}
.teacher-page .t-footer nav{justify-content:center;flex-wrap:wrap}
.teacher-page .t-values p{line-height:1.9}
.teacher-page .t-notebook-title{font-size:clamp(26px,2.5vw,32px)}
.teacher-page .t-step-body{transform:translate3d(var(--step-x,0px),var(--step-y,0px),0) rotate(var(--step-turn,0deg)) scale(var(--step-scale,1));opacity:var(--step-alpha,1);transform-origin:right center}
.teacher-page .t-step-number{transition:background-color 240ms ease-out,color 240ms ease-out,border-color 240ms ease-out}
.teacher-page .step-reached .t-step-number{background:var(--t-ink);color:var(--t-paper);border-color:var(--t-ink)}
@keyframes t-chapter-enter{from{opacity:.3;transform:translateY(10px)}to{opacity:1;transform:none}}
@media(hover:hover) and (pointer:fine){
 .teacher-page .t-login:hover{background:#d6e3f5;transform:translateY(-1px);text-decoration:none}
 .teacher-page .t-header nav a:hover,.teacher-page .t-footer nav a:hover{background:var(--t-soft);color:var(--t-blue);text-decoration:none}
 .teacher-page.motion-enabled .t-hero.in-view .t-notebook-title{animation:t-chapter-enter 700ms var(--flow-motion-ease) both}
}
@media(max-width:767px){.teacher-page .t-return{gap:2px 8px}.teacher-page .t-reply .t-return{justify-content:center}.teacher-page .t-notebook-title{font-size:26px}}
@media(prefers-reduced-motion:reduce){.teacher-page .t-step-body{transform:none;opacity:1}.teacher-page .t-login:hover{transform:none}}

/* Compact chapter composition: one sheet opening, no branches or feature tags. */
.teacher-page .t-chapter-card{isolation:isolate;background:var(--t-ink);color:var(--t-paper);border-radius:16px;min-height:330px;padding:0;overflow:hidden;box-shadow:0 18px 42px rgb(23 37 84 / .10)}
.teacher-page .t-chapter-card::before{display:none}
.teacher-page .t-chapter-content{position:relative;padding:32px 36px;z-index:1}
.teacher-page .t-chapter-label{font-size:14px;color:var(--t-soft);margin-bottom:28px}
.teacher-page .t-chapter-card .t-notebook-title{font-size:clamp(32px,3.4vw,46px);line-height:1.55;padding:0;margin-bottom:18px}
.teacher-page .t-chapter-card .t-notebook-title strong{font-weight:700}
.teacher-page .t-chapter-message{font-size:16px;line-height:1.9;color:var(--t-soft);max-width:28ch}
.teacher-page .t-opening-sheet{position:absolute;inset:12px;inset-inline-start:35%;background:var(--t-blue);border-radius:8px;transform:translateX(-72%) rotate(-7deg);transform-origin:left bottom;opacity:.24}
.teacher-page .t-chapter-seal{display:block;width:32px;height:3px;background:var(--t-soft);margin-top:28px;transform-origin:right}
.teacher-page .t-values h2{font-size:20px;margin-bottom:6px}
.teacher-page .t-values p{font-size:15px;max-width:30ch}
@keyframes t-open-chapter{from{transform:translateX(20%) rotate(12deg);opacity:.1}to{transform:translateX(-72%) rotate(-7deg);opacity:.24}}
@keyframes t-chapter-mark{from{transform:scaleX(.2);opacity:.2}to{transform:scaleX(1);opacity:1}}
@media(hover:hover) and (pointer:fine){
 .teacher-page.motion-enabled .t-hero.in-view .t-opening-sheet{animation:t-open-chapter 1100ms cubic-bezier(.22,1,.36,1) both}
 .teacher-page.motion-enabled .t-hero.in-view .t-chapter-message{animation:t-chapter-enter 650ms var(--flow-motion-ease) 180ms both}
 .teacher-page.motion-enabled .t-hero.in-view .t-chapter-seal{animation:t-chapter-mark 700ms var(--flow-motion-ease) 320ms both}
}
@media(max-width:767px){.teacher-page .t-chapter-card{min-height:280px}.teacher-page .t-chapter-content{padding:26px 28px}.teacher-page .t-chapter-card .t-notebook-title{font-size:36px}.teacher-page .t-chapter-label{margin-bottom:20px}.teacher-page .t-chapter-message{font-size:15px}.teacher-page .t-values h2{font-size:19px}}

/* S95: quiet return links, aligned grid edge and complete step motion. */
.teacher-page .t-hero::before{background-position:0 0,0 var(--grid-origin,0px),0 0}
.teacher-page .t-values{position:relative}
.teacher-page .t-values::before{content:"";position:absolute;inset-block-start:0;inset-inline:calc((100% - 100vw)/2);height:1px;background:rgb(36 87 167 / .10)}
.teacher-page .t-login,.teacher-page .t-login:hover{padding:0;background:none;border:0;border-radius:0;box-shadow:none;transform:none;color:inherit;text-decoration:none;font-weight:600;transition:color 180ms ease-out}
.teacher-page .t-login:hover{color:var(--t-teal)}
.teacher-page .t-reply{padding:0;background:none;border-radius:0;align-items:flex-start}
.teacher-page .t-reply .t-return{color:var(--t-paper)}
.teacher-page .t-reply .t-login:hover{color:var(--t-soft)}
.teacher-page .t-footer{grid-template-columns:1fr auto 1fr;text-align:start}
.teacher-page .t-footer>p{justify-self:start;margin:0}
.teacher-page .t-footer nav{grid-column:2}
.teacher-page .t-steps li{display:block;padding-bottom:38px}
.teacher-page .t-step-body{display:grid;grid-template-columns:48px 1fr;gap:24px;transform-origin:right center}
@media(max-width:767px){.teacher-page .t-step-body{grid-template-columns:40px 1fr;gap:16px}.teacher-page .t-reply .t-return{justify-content:flex-start}.teacher-page .t-footer{grid-template-columns:1fr;justify-items:stretch}.teacher-page .t-footer nav{grid-column:1;justify-self:center}.teacher-page .t-footer>p{text-align:right}.teacher-page .t-step-body{rotate:none}}

/* S96: bounded divider, connected steps behind moving content, white action panel. */
.teacher-page .t-values::before{inset-inline:0}
.teacher-page .t-steps{isolation:isolate}
.teacher-page .t-steps::before,.teacher-page .t-steps::after{z-index:-1;inset-block:24px auto;height:var(--route-height,calc(100% - 72px))}
.teacher-page .t-step-body{position:relative;z-index:1;opacity:1;transform:none}
.teacher-page .t-step-body>div{opacity:var(--copy-alpha,1);transform:translate3d(var(--copy-x,0px),var(--copy-y,0px),0);transform-origin:right center}
.teacher-page .t-step-number{transform:translateY(var(--number-y,0px))}
.teacher-page .t-reply{background:#FFFFFF;padding:28px 32px;border-radius:4px;align-items:center}
.teacher-page .t-reply .t-return{color:var(--t-ink)}
.teacher-page .t-reply .t-login:hover{color:var(--t-teal)}
@media(max-width:767px){.teacher-page .t-steps::before,.teacher-page .t-steps::after{inset-block-start:20px;inset-inline-start:19px}.teacher-page .t-reply{padding:22px 16px}.teacher-page .t-reply .t-return{justify-content:center}}
@media(prefers-reduced-motion:reduce){.teacher-page .t-step-body>div{opacity:1;transform:none}.teacher-page .t-step-number{transform:none}}