/* Public landing: quiet editorial layout, scoped away from the learning app. */
.landing-page{
  --ink:#172a43;--quiet:#647080;--rule:#dfe3e8;--paper:#ffffff;
  display:block;min-height:100vh;padding:0;background:var(--paper);color:var(--ink);
  font-family:"Apple SD Gothic Neo","Malgun Gothic",system-ui,sans-serif;
  -webkit-font-smoothing:antialiased;
}
.landing-page :is(h1,h2,h3,p,blockquote){word-break:keep-all;overflow-wrap:break-word}
.landing-width{width:min(1200px,calc(100% - 96px));margin-inline:auto}
.landing-header{width:min(1360px,calc(100% - 80px));margin:auto;min-height:102px;display:flex;align-items:center;justify-content:space-between;gap:32px}
.landing-brand{font-size:1.2rem;font-weight:700;letter-spacing:-.055em;color:var(--ink);text-decoration:none;white-space:nowrap}
.landing-brand span{font-size:.875rem;font-weight:400;letter-spacing:-.025em;margin-left:8px}
.landing-header nav{display:flex;align-items:center;gap:30px}
.landing-header nav a{font-size:.875rem;font-weight:500;color:var(--ink);text-decoration:none;min-height:44px;display:inline-flex;align-items:center}
.landing-header nav a:hover{text-decoration:underline;text-underline-offset:6px}
.landing-header nav .nav-login{padding:0 21px;border:1px solid #cfd5dd;border-radius:4px}
.landing-hero{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:clamp(48px,8vw,120px);align-items:center;padding-block:64px 86px}
.eyebrow{font-size:.875rem;font-weight:500;color:var(--quiet);letter-spacing:0;margin-bottom:26px}
.hero-copy h1{font-size:clamp(2.6rem,4.25vw,3.85rem);font-weight:700;line-height:1.3;letter-spacing:-.075em;margin-bottom:28px}
.hero-copy h1 em{font-style:normal;font-weight:400;color:inherit}
.hero-lead{font-size:1.0625rem;line-height:1.85;color:#3c4a5b;margin-bottom:18px;letter-spacing:-.025em}
.hero-description{font-size:1rem;line-height:1.85;color:var(--quiet);max-width:535px;letter-spacing:-.02em}
.hero-description strong{font-weight:500;color:var(--ink)}
.hero-links{margin-top:27px}
.landing-button{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:13px 22px;background:var(--ink);color:white;border:1px solid var(--ink);border-radius:4px;font-size:.9375rem;font-weight:600;text-decoration:none;transition:background .18s}
.landing-button:hover{background:#2b4565;color:white}
.landing-page .login-panel{width:100%;padding:0;background:transparent;border:0;border-radius:0;box-shadow:none;scroll-margin-top:32px}
.landing-page .login-panel .eyebrow{margin-bottom:14px;color:var(--quiet)}
.landing-page .login-panel h2{font-size:1.65rem;font-weight:600;letter-spacing:-.055em;margin-bottom:15px}
.landing-page .login-panel .muted{font-size:.9375rem;line-height:1.8;color:var(--quiet)}
.landing-page .login-actions{gap:9px;margin:23px 0 0}
.landing-page .login-actions a,.landing-page .login-actions button{border-radius:4px;min-height:50px;font-size:.9375rem;padding:12px;border-color:#cfd5dd;background:white;color:var(--ink);font-weight:500}
.landing-page .login-actions .primary{background:var(--ink);border-color:var(--ink);color:white}
.landing-page .login-actions a:hover,.landing-page .login-actions button:hover{background:#f0f3f6}
.landing-page .login-actions .primary:hover{background:#2b4565}
.landing-page .login-help{border:0;margin:18px 0 0;padding:0;font-size:.875rem;line-height:1.8;color:var(--quiet)}
.landing-page #login-error:empty{display:none}
.landing-page .login-panel input{border-radius:4px}
.study-editorial{width:min(1360px,calc(100% - 48px));margin:0 auto;background:#edf0f2}
.study-editorial img{display:block;width:100%;height:clamp(280px,31vw,440px);object-fit:cover;object-position:center 48%}
.study-editorial figcaption{padding:20px 32px 0;background:white;font-size:.875rem;line-height:1.8;color:var(--quiet);text-align:right}
.study-editorial figcaption br{display:none}
.study-editorial figcaption strong{font-weight:500;color:var(--ink);margin-left:6px}
.learning-path{padding-block:38px 0;background:white}
.learning-path>.landing-width{display:flex;justify-content:space-between;align-items:center;gap:48px;padding-bottom:40px;border-bottom:1px solid var(--rule)}
.learning-path p{font-size:.9375rem;color:var(--quiet);margin:0;line-height:1.7}
.learning-path p br{display:none}
.learning-path p strong{font-weight:500;color:var(--ink);margin-left:6px}
.learning-path ol{list-style:none;display:flex;gap:28px;padding:0;margin:0;font-size:.875rem;color:#4c5969}
.learning-path li{white-space:nowrap}
.landing-section{padding-block:105px;scroll-margin-top:28px}
.section-heading{margin-bottom:50px}
.section-heading h2,.together-section h2,.final-cta h2{font-size:clamp(1.85rem,3vw,2.65rem);font-weight:500;line-height:1.48;letter-spacing:-.06em;margin-bottom:22px}
.section-heading>p:last-child{font-size:1rem;color:var(--quiet);line-height:1.9;max-width:600px;margin-bottom:0}
#learners{display:grid;grid-template-columns:.92fr 1.08fr;gap:0 85px}
#learners .section-heading{margin:0}
#learners .section-heading h2{font-size:clamp(1.85rem,2.75vw,2.4rem)}
#learners .section-heading>p:last-child{max-width:380px}
.learner-layout{min-width:0;padding-top:7px}
.feature-list{display:grid;gap:0}
.feature-list article{padding:25px 0;border-bottom:1px solid var(--rule)}
.feature-list article:first-child{padding-top:0}
.feature-list article:last-child{border:0;padding-bottom:0}
.feature-list h3,.teacher-benefits h3,.together-items h3{font-size:1.125rem;font-weight:600;letter-spacing:-.035em;line-height:1.6;margin-bottom:12px}
.feature-list p,.teacher-benefits p,.together-items p{font-size:1rem;color:var(--quiet);line-height:1.85;margin:0}
.support-strip{grid-column:1/-1;display:grid;grid-template-columns:.92fr 1.08fr;gap:85px;margin-top:68px;padding-top:34px;border-top:1px solid var(--rule)}
.support-strip h3{font-size:1.3rem;font-weight:500;line-height:1.7;letter-spacing:-.045em;margin:0}
.support-strip h3 br{display:none}
.support-strip p{font-size:1rem;line-height:1.85;color:var(--quiet);margin:0}
.materials-section{background:#f2f4f6}
.materials-section .section-heading{display:grid;grid-template-columns:1fr 1fr;gap:0 85px;margin-bottom:62px}
.materials-section .section-heading .eyebrow{grid-column:1/-1}
.materials-section .section-heading h2{margin:0}
.materials-section .section-heading>p:last-child{align-self:end;padding-bottom:6px}
.material-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:60px;padding:0;list-style:none;margin:0 0 34px;counter-reset:steps}
.material-steps li{counter-increment:steps;padding-top:24px;border-top:1px solid #c8d0d9}
.material-steps li:before{content:counter(steps,decimal-leading-zero);display:block;font:400 2.5rem/1.3 Georgia,serif;letter-spacing:-.04em;color:#8993a0;margin-bottom:26px}
.material-steps strong{display:block;font-size:1.3rem;letter-spacing:-.04em;font-weight:500;margin-bottom:12px}
.material-steps span{display:block;font-size:1rem;line-height:1.8;color:var(--quiet);max-width:285px}
.section-note{max-width:840px;font-size:.875rem;color:var(--quiet);line-height:1.85;margin:0}
.teacher-section{background:white}
.teacher-section .section-heading{max-width:760px;margin-bottom:55px}
.teacher-section .section-heading h2{font-size:clamp(2rem,3.4vw,3rem);max-width:740px}
.teacher-section .section-heading>p:last-child{max-width:620px}
.teacher-layout{display:grid;grid-template-columns:1fr 1.05fr;gap:100px;align-items:start}
.teacher-benefits{display:grid;gap:32px;padding-top:6px}
.agent-examples{background:#182c45;color:white;border:0;border-radius:0;padding:38px 40px}
.agent-examples>.demo-label{display:block;font-size:.875rem;color:#c4cfde;font-weight:400;margin-bottom:24px}
.agent-examples article{padding:23px 0;border-top:1px solid #46566b}
.agent-examples article>span{font-size:.875rem;color:#b3c1d3}
.agent-examples blockquote{font-size:1.0625rem;line-height:1.9;letter-spacing:-.025em;margin:12px 0 0}
.approval-note{margin:15px 0 0;font-size:.875rem;line-height:1.9;color:#c4cfde}
.approval-note strong{color:white;font-weight:500}
.together-section{padding-top:0;padding-bottom:88px;border-bottom:1px solid var(--rule)}
.together-section>div:first-child{display:flex;align-items:baseline;justify-content:space-between;gap:60px;margin-bottom:40px}
.together-section h2{font-size:1.65rem;max-width:620px;margin:0}
.together-section h2 br{display:none}
.together-items{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:60px}
.together-items article{padding:0}
.together-items p{font-size:.9375rem}
.faq-section{display:grid;grid-template-columns:.7fr 1.3fr;gap:60px}
.faq-section h2{font-size:1.9rem;max-width:280px}
.faq-list{min-width:0}
.faq-list details{padding:22px 0;border-bottom:1px solid var(--rule)}
.faq-list details:first-child{padding-top:0}
.faq-list summary{list-style:none;position:relative;cursor:pointer;font-size:1rem;font-weight:500;line-height:1.7;padding-right:32px;word-break:keep-all}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary:after{content:'+';position:absolute;right:0;top:0;font-size:1.4rem;font-weight:400;line-height:1.2;color:#8993a0}
.faq-list details[open] summary:after{content:'\2212'}
.faq-list details p{font-size:.9375rem;line-height:1.9;color:var(--quiet);margin:17px 28px 0 0}
.final-cta{display:flex;align-items:center;justify-content:space-between;gap:45px;padding-block:38px 90px}
.final-cta h2{font-size:clamp(1.8rem,3.4vw,3rem);margin:0;max-width:730px}
.final-cta .eyebrow{margin-bottom:18px}
.final-cta .landing-button{flex-shrink:0}
.landing-footer{border-top:1px solid var(--rule);padding-block:30px 38px;display:flex;align-items:center;gap:25px;flex-wrap:wrap}
.landing-footer p{font-size:.8125rem;color:var(--quiet);margin:0}
.landing-footer>a:last-child{font-size:.875rem;color:var(--quiet);margin-left:auto;text-decoration:none}
html{scroll-behavior:smooth}
@media(min-width:1440px){.landing-hero{padding-block:85px 105px}}
@media(max-width:1100px){
 .landing-width{width:calc(100% - 64px)}.landing-header{width:calc(100% - 64px)}
 .landing-hero{grid-template-columns:minmax(0,1fr) 295px;gap:50px}.hero-copy h1{font-size:3rem}
 .landing-header nav{gap:20px}.landing-brand span{display:block;margin:1px 0 0;font-size:.8125rem}
 .learning-path>.landing-width{gap:28px}.learning-path p br{display:block}.learning-path p strong{margin:0}.learning-path ol{gap:22px}
 #learners,.support-strip,.teacher-layout{gap:45px}.materials-section .section-heading{gap:0 40px}
 .material-steps,.together-items{gap:35px}.agent-examples{padding:30px}.faq-section{gap:40px}
 .final-cta h2{font-size:2rem}
}
@media(max-width:760px){
 .landing-width,.landing-header{width:calc(100% - 40px)}
 .landing-header{position:relative;min-height:78px;gap:16px;flex-wrap:wrap;padding-block:20px}
 .landing-brand{font-size:1.05rem}.landing-brand span{display:block;font-size:.8125rem;margin:2px 0 0}
 .landing-header nav{width:100%;gap:12px;justify-content:space-between;flex-wrap:wrap}.landing-header nav a{font-size:.8125rem;min-height:40px}.landing-header nav .nav-login{position:absolute;right:0;top:16px;padding-inline:14px;min-height:36px}
 .landing-hero{grid-template-columns:1fr;gap:42px;padding-block:36px 48px}
 .hero-copy h1{font-size:clamp(2.2rem,6.5vw,3.25rem);line-height:1.4;letter-spacing:-.065em;margin-bottom:22px}.eyebrow{margin-bottom:20px}
 .hero-lead{font-size:1rem}.hero-description{font-size:.9375rem;max-width:520px}.hero-links{margin-top:22px}
 .landing-page .login-panel{padding-top:28px;border-top:1px solid var(--rule)}
 .landing-page .login-panel .eyebrow{display:none}.landing-page .login-panel h2{font-size:1.4rem;margin-bottom:10px}.landing-page .login-panel .muted br{display:none}
 .landing-page .login-actions{margin-top:18px}.landing-page .login-help{margin-top:16px;max-width:520px}
 .study-editorial{width:100%}.study-editorial img{height:300px;object-position:45% center}
 .study-editorial figcaption{padding:14px 20px 0;text-align:left;font-size:.8125rem}.study-editorial figcaption strong{margin-left:0}.study-editorial figcaption br{display:block}
 .learning-path{padding-top:28px}.learning-path>.landing-width{display:block;padding-bottom:28px}.learning-path p{display:none}.learning-path ol{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;font-size:.875rem}
 .landing-section{padding-block:64px}.section-heading{margin-bottom:30px}.section-heading h2,.together-section h2{font-size:1.9rem}
 #learners{grid-template-columns:1fr;gap:32px}#learners .section-heading>p:last-child{max-width:none}#learners .section-heading h2{font-size:1.9rem}
 .learner-layout{padding:0}.feature-list article{padding:25px 0}.feature-list h3{font-size:1.0625rem}.feature-list p{font-size:.9375rem}
 .support-strip{grid-template-columns:1fr;gap:12px;margin-top:0;padding-top:27px}.support-strip h3{font-size:1.15rem}.support-strip p{font-size:.9375rem}
 .materials-section .section-heading{display:block;margin-bottom:30px}.materials-section .section-heading h2{margin-bottom:20px}
 .material-steps{grid-template-columns:1fr;gap:25px;margin-bottom:30px}.material-steps li{display:grid;grid-template-columns:48px 1fr;gap:7px 16px;padding-top:22px}
 .material-steps li:before{grid-row:1/3;margin:0;font-size:1.8rem}.material-steps strong{font-size:1.15rem;margin:0}.material-steps span{max-width:none;font-size:.9375rem}.section-note{font-size:.875rem}
 .teacher-section .section-heading{margin-bottom:30px}.teacher-section .section-heading h2{font-size:1.95rem}
 .teacher-layout{grid-template-columns:1fr;gap:32px}.teacher-benefits{gap:25px}.teacher-benefits p{font-size:.9375rem}
 .agent-examples{padding:28px 24px}.agent-examples blockquote{font-size:1rem}
 .together-section{padding-top:0}.together-section>div:first-child{display:block;margin-bottom:30px}.together-section h2{font-size:1.75rem}.together-items{grid-template-columns:1fr;gap:25px}
 .faq-section{grid-template-columns:1fr;gap:8px}.faq-section .section-heading{margin-bottom:25px}.faq-section h2{font-size:1.85rem;max-width:none}.faq-list summary{font-size:1rem}.faq-list details p{margin-right:0}
 .final-cta{display:block;padding-block:0 60px}.final-cta h2{font-size:1.8rem}.final-cta .landing-button{margin-top:26px}
 .landing-footer{display:grid;gap:15px;padding-block:25px 32px}.landing-footer>a:last-child{margin-left:0}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.landing-button{transition:none}}
@media(forced-colors:active){.landing-button,.nav-login,.login-actions button{border:1px solid ButtonText}}