body{background:#fff}.site-header{max-width:1240px;margin:auto;padding:22px 32px;display:flex;align-items:center;justify-content:space-between;gap:20px}.site-header nav{display:flex;align-items:center;gap:28px}.site-header nav>a:not(.button){color:#193E56;text-decoration:none;font-size:14px}.home-main{max-width:1240px;margin:auto;padding:28px 32px 76px}.home-hero{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:40px 0 66px}.hero-kicker{display:flex;align-items:center;gap:10px;color:#193E56;font-size:13px;font-weight:600}.hero-kicker:before{content:'';width:20px;height:2px;background:rgba(25, 62, 86, 0.88)}.home-hero h1{font-size:clamp(40px,4.7vw,64px);line-height:1.18;letter-spacing:-.06em;margin:22px 0}.home-hero h1 span{color:#193E56}.home-hero p{max-width:33em;font-size:17px;color:#193E56;margin:0 0 28px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px}.hero-actions .button{padding:14px 22px}.classroom-scene{background:rgba(25, 62, 86, 0.035);border:1px solid rgba(25, 62, 86, 0.22);padding:28px;border-radius:24px;position:relative}.scene-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;font-size:12px;letter-spacing:.07em;color:#193E56}.scene-top .pill{background:#fff}.scene-window{border-radius:13px;background:#fff;box-shadow:0 18px 38px rgba(25, 62, 86, 0.1);overflow:hidden;border:1px solid rgba(25, 62, 86, 0.22)}.scene-window-head{border-bottom:1px solid rgba(25, 62, 86, 0.22);padding:15px 18px;font-size:13px;font-weight:700;color:#193E56}.scene-body{padding:24px;display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center}.scene-board{aspect-ratio:1;display:grid;grid-template-columns:repeat(4,1fr);gap:5px}.scene-cell{background:rgba(25, 62, 86, 0.035);border-radius:5px;display:grid;place-items:center}.scene-cell.path{background:rgba(25, 62, 86, 0.075)}.scene-cell.actor{color:#fff;background:rgba(25, 62, 86, 0.88)}.scene-cell svg{width:25px;height:25px}.scene-blocks{display:grid;gap:2px;align-content:center}.scene-block{background:rgba(25, 62, 86, 0.88);color:#fff;font-size:13px;font-weight:650;padding:12px 14px;position:relative;border-radius:5px}.scene-block:after{content:'';position:absolute;width:20px;height:7px;background:inherit;border-radius:0 0 4px 4px;left:16px;bottom:-5px;z-index:1}.scene-block:nth-child(2){background:rgba(243, 165, 70, 0.16);color:#193E56}.scene-bottom{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-top:1px solid rgba(25, 62, 86, 0.22);font-size:12px;color:#193E56}.scene-run{background:rgba(25, 62, 86, 0.035);color:#193E56;border-radius:7px;padding:6px 12px;font-weight:700}.scene-caption{margin-top:22px;font-size:13px;color:#193E56;display:flex;gap:18px}.scene-caption b{color:#193E56}.home-section{border-top:1px solid rgba(25, 62, 86, 0.22);padding:38px 0 0;margin-top:12px}.section-title{display:flex;align-items:baseline;justify-content:space-between;gap:20px;margin-bottom:23px}.section-title h2{font-size:23px;margin:0}.section-title a{font-size:14px;text-decoration:none}.entry-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin:0 0 45px}.entry-card{display:block;position:relative;color:#193E56;text-decoration:none;padding:25px;border:1px solid rgba(25, 62, 86, 0.22);border-radius:14px;transition:border-color .15s,transform .15s}.entry-card:hover{border-color:rgba(25, 62, 86, 0.22);transform:translateY(-3px)}.entry-icon{width:43px;height:43px;background:rgba(25, 62, 86, 0.035);border-radius:12px;display:grid;place-items:center;color:#193E56;margin-bottom:24px}.entry-icon svg{width:23px;height:23px}.entry-card h3{font-size:20px;margin:0 0 6px}.entry-card p{font-size:14px;color:#193E56;margin:0}.entry-card .entry-arrow{position:absolute;right:24px;top:30px;color:#193E56}.entry-card .entry-arrow svg{width:20px;height:20px}.entry-card.teacher{background:#193E56;border-color:#193E56;color:#fff}.entry-card.teacher p{color:rgba(255,255,255,.84)}.entry-card.teacher .entry-icon{background:#fff;color:#F3A546}.entry-card.teacher .entry-arrow{color:#F3A546}.course-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}.course-item{padding:0 0 20px}.course-index{font-size:12px;font-weight:700;color:#193E56;letter-spacing:.12em;margin-bottom:14px}.course-item h3{font-size:19px;margin:0 0 10px}.course-item p{font-size:14px;color:#193E56;max-width:26em;margin:0}.site-footer{border-top:1px solid rgba(25, 62, 86, 0.22);padding:25px 32px;max-width:1240px;margin:auto;display:flex;justify-content:space-between;gap:20px;color:#193E56;font-size:12px}.site-footer a{color:#193E56;text-decoration:none}.site-footer nav{display:flex;gap:24px}.auth-page{background:rgba(25, 62, 86, 0.035)}.auth-layout{min-height:100vh;display:grid;grid-template-columns:1fr 1fr}.auth-story{background:#193E56;color:#fff;padding:48px max(40px,8vw);display:flex;flex-direction:column;justify-content:space-between}.auth-story .platform-brand{color:#fff}.auth-story h1{font-size:clamp(34px,4vw,52px);line-height:1.3;margin:0 0 20px}.auth-story p{color:rgba(255,255,255,.84);max-width:25em}.auth-story small{color:#F3A546}.auth-form-wrap{display:grid;place-items:center;padding:40px 28px}.auth-form-wrap>div{width:100%;max-width:380px}.auth-form-wrap h2{font-size:28px;margin:0 0 8px}.auth-form-wrap .muted{font-size:14px;margin:0 0 30px}.auth-form-wrap form{display:grid;gap:20px}.auth-form-wrap label{display:grid;gap:8px;font-size:14px;font-weight:600}.auth-form-wrap input{width:100%;border:1px solid rgba(25, 62, 86, 0.22);border-radius:9px;padding:13px 14px;background:#fff;min-height:48px}.auth-form-wrap button{width:100%;margin-top:8px}.auth-form-wrap #error{font-size:14px}.auth-help{font-size:13px;color:#193E56;margin-top:24px}.auth-form-wrap details{margin-top:28px;padding-top:20px;border-top:1px solid rgba(25, 62, 86, 0.22);font-size:14px}.auth-form-wrap details form{margin-top:20px}.auth-mobile-brand{display:none}.auth-form-wrap #notice:empty{display:none}@media(max-width:1000px){.home-hero{gap:30px}.classroom-scene{padding:18px}.scene-body{padding:18px;gap:14px}.auth-story{padding:40px}.site-header nav>a:not(.button){display:none}}@media(max-width:720px){.site-header{padding:18px 20px}.site-header .button{padding:9px 14px;font-size:14px}.home-main{padding:8px 20px 44px}.home-hero{grid-template-columns:1fr;gap:30px;padding:24px 0 36px}.home-hero h1{font-size:clamp(30px,5.5vw,42px)}.home-hero p{font-size:16px}.classroom-scene{max-width:520px;width:100%}.entry-grid,.course-grid{grid-template-columns:1fr;gap:14px}.entry-card{padding:22px;display:grid;grid-template-columns:44px 1fr;column-gap:16px}.entry-icon{grid-row:span 2;margin:0}.entry-card h3{font-size:18px}.entry-card p{grid-column:2;padding-right:10px}.entry-card .entry-arrow{right:16px;top:24px}.section-title h2{font-size:21px}.course-item{padding:12px 0 20px;border-bottom:1px solid rgba(25, 62, 86, 0.22)}.course-index{margin-bottom:7px}.site-footer{padding:24px 20px;flex-direction:column;gap:12px}.auth-layout{grid-template-columns:1fr}.auth-story{display:none}.auth-form-wrap{min-height:100vh;padding:35px 25px}.auth-mobile-brand{display:flex;margin-bottom:55px}.auth-form-wrap h2{font-size:28px}}

.platform-brand .brand-logo{width:52px;height:52px}
.auth-story .brand-logo{background:#fff;border-radius:14px;padding:2px}