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72px}.legal-section,.legal-operator{grid-template-columns:1fr;gap:10px}.landing-header{gap:16px;padding-inline:18px}.landing-nav{display:none}.landing-login{margin-left:auto}.landing-rail-cta{display:none}.landing-hero{min-height:760px;background-image:url(/images/landing-stationery-mobile.png);background-position:center;background-size:cover;padding:86px 20px 46px}.landing-hero:after{background:#ffffff59}.landing-title{font-size:clamp(3.6rem,18vw,5.4rem)}.landing-hero-row{align-items:stretch;flex-direction:column}.landing-actions,.landing-button{width:100%}.landing-features{grid-template-columns:1fr 1fr}.landing-feature,.landing-feature:first-child{border-bottom:1px solid var(--et-rule);padding:14px 10px 14px 0}.landing-feature:nth-child(2n){border-right:0;padding-left:10px}.landing-story-meter{right:20px;left:20px}.landing-slide{padding-inline:20px}.landing-slide-title{font-size:clamp(3.35rem,17vw,5.4rem)}.landing-slide-meta{max-width:310px;line-height:1.6}.landing-section-inner{padding:56px 20px}.landing-facts,.landing-pricing{grid-template-columns:1fr}.landing-fact,.landing-fact:first-child,.landing-fact:last-child{border-right:0;border-bottom:1px solid var(--et-rule);padding:22px 0}.landing-fact:last-child{border-bottom:0}.landing-plan{min-height:auto;border-right:0;border-bottom:1px solid var(--et-black)}.landing-plan:last-child{border-bottom:0}.landing-plan .landing-button{width:100%}.landing-final{padding:84px 20px 110px}.landing-cookie{right:16px;bottom:74px;left:16px;width:auto;align-items:stretch;flex-direction:column}}@media(prefers-reduced-motion:reduce){.landing-slide,main#main>*{animation:none;transition:none}}body.app-body main#main>div>header:first-child:not(.page-header){border-bottom:1px solid var(--color-line);padding-bottom:1.25rem}body.app-body main#main>div>header:first-child:not(.page-header) h1{font-size:1.875rem;font-weight:600}.landing-page>.public-footer{border-top-color:var(--et-black);font-family:Helvetica Neue,Helvetica,Arial,sans-serif}:root[data-theme=dark]{--color-accent: #4aa3ff;--color-accent-soft: #142b42;--color-action: #4aa3ff;--color-action-hover: #7bbcff;--color-on-action: #0a1929;--color-line: #343434;--color-paper: #111111;--color-mist: #171717;--color-surface: #1d1d1d;--color-ink: #f3f3f3;--color-muted: #b4b4b4}:root[data-theme=dark] body.app-body,:root[data-theme=dark] body.app-body .app-shell{background:#111}:root[data-theme=dark] body.app-body .app-sidebar,:root[data-theme=dark] body.app-body .app-mobile-header,:root[data-theme=dark] body.app-body .app-mobile-nav{background:#171717}:root[data-theme=dark] .workspace-switcher-card,:root[data-theme=dark] .workspace-switcher-button{background:#1d1d1d}:root[data-theme=dark] .nav-link:hover,:root[data-theme=dark] .sidebar-tool-button:hover{background:#262626}:root[data-theme=dark] .surface table thead,:root[data-theme=dark] .btn-ghost{background:#242424}:root[data-theme=dark] .surface table tbody tr:hover,:root[data-theme=dark] .surface .divide-y>:hover,:root[data-theme=dark] .surface.divide-y>:hover{background:#242424}body.app-body aside>div:first-child .text-lg:after{display:none}body.app-body section.grid>.surface:nth-child(4n+1),body.app-body section.grid>.surface:nth-child(4n+2),body.app-body section.grid>.surface:nth-child(4n+3),body.app-body section.grid>.surface:nth-child(4n+4){background:var(--color-surface);color:var(--color-ink)}body.app-body section.grid>.surface:nth-child(4n+1) .text-2xl,body.app-body section.grid>.surface:nth-child(4n+2) .text-2xl,body.app-body section.grid>.surface:nth-child(4n+3) .text-2xl,body.app-body section.grid>.surface:nth-child(4n+4) .text-2xl{color:var(--color-ink)}body.app-body section.grid.gap-px>article:nth-child(4n+1),body.app-body section.grid.gap-px>article:nth-child(4n+2),body.app-body section.grid.gap-px>article:nth-child(4n+3),body.app-body section.grid.gap-px>article:nth-child(4n+4){background:var(--color-surface)}body.app-body .student-row .student-avatar,body.app-body .class-list-row .class-list-icon{border-radius:2px;background:var(--color-accent-soft);color:var(--color-accent)}.workspace-switcher-card,.workspace-switcher-button{border-color:transparent;background:transparent}.workspace-switcher-button:hover{border-color:var(--color-line);background:var(--color-surface)}:root[data-theme=dark] .workspace-switcher-card,:root[data-theme=dark] .workspace-switcher-button{background:transparent}:root[data-theme=dark] body.app-body section.grid>.surface:nth-child(4n+1),:root[data-theme=dark] body.app-body section.grid>.surface:nth-child(4n+2),:root[data-theme=dark] body.app-body section.grid>.surface:nth-child(4n+3),:root[data-theme=dark] body.app-body section.grid>.surface:nth-child(4n+4){background:var(--color-surface)}body.app-body .class-editor-rail,body.app-body .student-add-panel{border:1px solid var(--color-line);border-radius:2px;background:var(--color-surface);box-shadow:none}body.app-body .class-editor-rail .input,body.app-body .student-add-panel .input{border-color:#8a8886;background:var(--color-surface);box-shadow:none}body.app-body .class-editor-rail .input:focus,body.app-body .student-add-panel .input:focus{border-color:var(--color-accent);background:var(--color-surface);box-shadow:inset 0 0 0 1px var(--color-accent)}body.app-body .class-rail-icon,body.app-body .student-add-icon{width:2.25rem;height:2.25rem;border-radius:2px;background:var(--color-accent);box-shadow:none;color:#fff}body.app-body .student-row,body.app-body .class-list-row{border:1px solid var(--color-line);border-radius:2px;box-shadow:none}body.app-body .student-row:hover,body.app-body .class-list-row:hover{background:#faf9f8;box-shadow:none;transform:none}body.app-body .class-list-row:hover .stat-card-arrow{background:var(--color-accent-soft);color:var(--color-accent);transform:none}body.app-body .student-count{border-radius:2px;background:var(--color-accent-soft);color:var(--color-accent)}:root[data-theme=dark] body.app-body .class-editor-rail,:root[data-theme=dark] body.app-body .student-add-panel,:root[data-theme=dark] body.app-body .student-row,:root[data-theme=dark] body.app-body .class-list-row{background:var(--color-surface);box-shadow:none}:root[data-theme=dark] body.app-body .student-row:hover,:root[data-theme=dark] body.app-body .class-list-row:hover{background:#242424}:root{--color-selected-surface: var(--color-accent-soft)}:root[data-theme=dark]{--color-selected-surface: #242d40}.nav-link-active,.studio-question-nav-active{background:var(--color-selected-surface)}@media(min-width:96rem){.ai-sidebar-toggle-arrow{color:var(--color-accent)!important;stroke:var(--color-accent)!important}}