@font-face{font-family:Druk Text Wide Cyr;src:url(/fonts/DrukTextWideCyr-Bold.otf)format("opentype");font-weight:700;font-display:swap}@font-face{font-family:Aeroport;src:url(/fonts/Aeroport-Regular.ttf)format("truetype");font-weight:400;font-display:swap}@font-face{font-family:Aeroport;src:url(/fonts/Aeroport-Bold.ttf)format("truetype");font-weight:700;font-display:swap}:root{--rb-yellow:#fff200;--rb-black:#000;--rb-white:#fff;--brand:var(--rb-yellow);--on-brand:#000;--ok:#00ff48;--warn:#ff3600;--danger:#fe0000;--info:#0c00ff;--color-bg:#f4f5f7;--color-surface:#fff;--color-surface-2:#f4f5f7;--color-border:#d9dbe0;--color-text:#17181a;--color-text-dim:#5f636b;--color-accent:var(--info);--color-success:#0a7a2f;--color-danger:var(--danger);--color-danger-hover:#c00000;--color-warn:var(--warn)}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--color-bg);color:var(--color-text);font-family:Aeroport,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}a{color:var(--color-accent)}button{cursor:pointer;font-family:inherit}button:disabled{cursor:not-allowed;opacity:.6}.page-center{justify-content:center;align-items:center;min-height:100vh;padding:1.5rem;display:flex}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:0;padding:1.5rem}.form-field{flex-direction:column;gap:.375rem;margin-bottom:1rem;display:flex}.form-field label{color:var(--color-text-dim);font-size:.875rem}.form-field .hint{color:var(--color-text-dim);font-size:.8125rem}.form-field input,.form-field textarea{background:var(--color-surface-2);border:1px solid var(--color-border);color:var(--color-text);border-radius:0;padding:.625rem .75rem;font-family:inherit;font-size:1rem}.form-field textarea{resize:vertical;min-height:4.5rem}.form-field textarea.json-textarea{min-height:8rem;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.875rem}.form-field input:focus,.form-field textarea:focus{outline:2px solid var(--color-accent);outline-offset:1px}.form-row{flex-wrap:wrap;gap:1rem;display:flex}.form-row>.form-field{flex:1;min-width:160px}.btn{text-align:center;text-wrap:balance;border:none;border-radius:0;padding:.625rem 1.125rem;font-size:.9375rem;font-weight:600;text-decoration:none;display:inline-block}.btn-primary{background:var(--brand);color:var(--on-brand);font-weight:700}.btn-primary:hover:not(:disabled){filter:brightness(.93)}.btn-danger{background:var(--color-danger);color:#fff}.btn-danger:hover:not(:disabled){background:var(--color-danger-hover)}.btn-secondary{background:var(--color-surface-2);color:var(--color-text);border:1px solid var(--color-border)}.btn-link{color:var(--color-accent);background:0 0;border:none;padding:0;font-size:.875rem}.btn-row{flex-wrap:wrap;gap:.75rem;margin-top:1rem;display:flex}.error-text{color:var(--color-danger);font-size:.875rem}.field-error{color:var(--color-danger);margin-top:-.5rem;margin-bottom:1rem;font-size:.8125rem}.success-text{color:var(--color-success);font-size:.875rem}.banner{border-radius:0;margin-top:1rem;padding:.75rem 1rem;font-size:.875rem}.banner--info{color:var(--info);background:#0c00ff0f;border:1px solid #0c00ff59}.banner--warn{color:var(--color-warn);background:#ff360014;border:1px solid #ff360059}.banner--success{color:var(--color-success);background:#22c55e1f;border:1px solid #22c55e66}.badge{background:var(--color-surface-2);border:1px solid var(--color-border);color:var(--color-text-dim);border-radius:999px;align-items:center;padding:.15rem .5rem;font-size:.75rem;font-weight:600;display:inline-flex}.app-header{border-bottom:1px solid var(--color-border);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;padding:1rem 1.5rem;display:flex}.app-header h1{margin:0;font-size:1.125rem}.app-header nav{flex-wrap:wrap;gap:1rem;margin-left:.5rem;font-size:.9375rem;display:flex}.app-header__menu{flex-wrap:wrap;flex:1;justify-content:space-between;align-items:center;gap:1rem;display:flex}.app-header__right{align-items:center;gap:1rem;display:flex}.app-header__toggle{display:none}@media (max-width:640px){.app-header{padding:.75rem 1rem}.app-header h1{white-space:nowrap}.app-header__toggle{min-height:2.5rem;font:inherit;background:var(--brand);color:var(--on-brand);cursor:pointer;border:none;align-items:center;padding:.375rem .875rem;font-weight:600;display:inline-flex}.app-header__toggle:focus-visible{outline:2px solid var(--rb-white);outline-offset:2px}.app-header__menu:not([data-open]){display:none}.app-header__menu{flex-direction:column;flex:1 0 100%;align-items:stretch;gap:0;padding-top:.5rem}.app-header__menu nav,.app-header__right{flex-direction:column;align-items:stretch;gap:0;margin-left:0}.app-header__right{border-top:1px solid #fff3;margin-top:.25rem}.app-header__menu a,.app-header__right>span{min-height:2.75rem;padding:.75rem 0;display:block}.app-header__right>button{align-self:flex-start;margin:.5rem 0}}.app-main{max-width:900px;margin:0 auto;padding:1.5rem}.page-heading{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;margin-bottom:1.25rem;display:flex}.page-heading h2{margin:0;font-size:1.375rem}.resource-list{flex-direction:column;gap:.75rem;display:flex}.resource-row{padding:1rem;text-decoration:none;display:block}.resource-row .resource-title{color:var(--color-text);font-size:1rem;font-weight:600}.resource-row .resource-meta{color:var(--color-text-dim);flex-wrap:wrap;gap:.75rem;margin-top:.375rem;font-size:.8125rem;display:flex}.empty-state{text-align:center;color:var(--color-text-dim);padding:3rem 1rem}.conflict-panel{border:1px solid var(--color-warn);background:#eab3080f;border-radius:0;margin:1.25rem 0;padding:1.25rem}.conflict-panel h3{color:var(--color-warn);margin-top:0;font-size:1rem}.conflict-compare{grid-template-columns:1fr 1fr;gap:1rem;margin:1rem 0;display:grid}@media (max-width:640px){.conflict-compare{grid-template-columns:1fr}}.conflict-side{background:var(--color-surface-2);border:1px solid var(--color-border);border-radius:0;padding:.875rem;font-size:.875rem}.conflict-side h4{color:var(--color-text-dim);text-transform:uppercase;letter-spacing:.03em;margin:0 0 .5rem;font-size:.8125rem}.conflict-side dl{margin:0}.conflict-side dt{color:var(--color-text-dim);margin-top:.5rem;font-size:.75rem}.conflict-side dt:first-child{margin-top:0}.conflict-side dd{white-space:pre-wrap;word-break:break-word;margin:.125rem 0 0}.conflict-options{flex-direction:column;gap:.5rem;display:flex}.conflict-option{align-items:flex-start;gap:.5rem;font-size:.9375rem;display:flex}.conflict-option input{margin-top:.2rem}.dirty-indicator{color:var(--color-warn);font-size:.8125rem}hr.divider{border:none;border-top:1px solid var(--color-border);margin:1.75rem 0}h1,h2,h3{letter-spacing:.01em;font-family:Druk Text Wide Cyr,Aeroport,sans-serif}.app-header{background:var(--rb-black);color:var(--rb-white);border-bottom:3px solid var(--brand)}.app-header a{color:var(--rb-white);text-decoration:none}.app-header a:hover{color:var(--brand)}.app-header-email{color:#ffffffb8;font-size:.875rem}.brand-mark{color:var(--brand);letter-spacing:.04em;font-family:Druk Text Wide Cyr,sans-serif}.hero{background:var(--rb-black);color:var(--rb-white);padding:3rem 1.5rem 2.5rem}.hero__inner{max-width:900px;margin:0 auto}.hero__title{color:var(--brand);text-transform:uppercase;margin:0;font-size:clamp(1.75rem,4.5vw,3rem)}.hero__sub{color:#ffffffd9;max-width:46ch;margin:.75rem 0 0;font-size:1.0625rem}.hero__formula{text-transform:uppercase;letter-spacing:.04em;flex-wrap:wrap;align-items:center;gap:8px;margin-top:1.5rem;font-family:Druk Text Wide Cyr,Aeroport,sans-serif;font-size:.8125rem;display:flex}.hero__formula>span:not(.hero__plus){background:var(--brand);color:var(--on-brand);padding:6px 10px}.hero__plus{color:var(--brand);font-size:1.25rem}.ribbon{background:var(--brand);color:var(--on-brand);font-weight:700}.ribbon__inner{max-width:900px;margin:0 auto;padding:.75rem 1.5rem}.feature-app{margin-top:2.25rem}.feature-app__head{border-bottom:3px solid var(--rb-black);align-items:baseline;gap:12px;margin-bottom:14px;padding-bottom:6px;display:flex}.feature-app__head h3{text-transform:uppercase;margin:0;font-size:1.25rem}.feature-app__env{color:var(--color-text-dim);font-size:.875rem}.feature-grid,.why-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px;display:grid}.feature-card,.why-card{background:var(--color-surface);border:1px solid var(--color-border);padding:14px 16px}.feature-card h4,.why-card h4{background:var(--brand);color:var(--on-brand);margin:0 0 8px;padding:2px 8px;font-size:.9375rem;display:inline-block}.feature-card ul{margin:0;padding-left:1.1rem}.feature-card li{margin:4px 0;font-size:.9375rem}.why-card p{margin:0;font-size:.9375rem}.feature-cta{flex-wrap:wrap;gap:12px;margin:2.5rem 0 1rem;display:flex}.download-card h3{margin:0 0 6px}.download-legend{max-width:62ch;color:var(--color-text-dim);margin:0 0 14px;font-size:.9375rem}.download-legend code{background:var(--color-surface-2);padding:1px 2px;font-family:ui-monospace,Menlo,Consolas,monospace}.download-builds{grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px 18px;max-width:900px;margin-top:10px;display:grid}.download-build{flex-direction:column;gap:6px;display:flex}.download-version+.download-version{margin-top:18px}.offline-note{border-left:3px solid var(--brand);margin-top:22px}.offline-note code{background:var(--color-surface-2);padding:1px 5px;font-family:ui-monospace,Menlo,Consolas,monospace}.data-table{border-collapse:collapse;background:var(--color-surface);width:100%;margin-bottom:26px;font-size:14px}.data-table th,.data-table td{border-bottom:1px solid var(--color-border);text-align:left;vertical-align:middle;padding:7px 10px}.data-table th{background:var(--color-surface-2);text-transform:uppercase;letter-spacing:.04em;color:var(--color-text-dim);font-size:12px;font-weight:700}.badge-current{background:var(--brand);color:var(--on-brand);font-weight:700}.badge-danger{background:var(--danger);color:var(--rb-white);font-weight:700}.unsigned-note{border-left:3px solid var(--warn);margin-top:22px}.unsigned-note pre{background:var(--color-surface-2);border:1px solid var(--color-border);padding:10px 12px;font-size:13px;overflow-x:auto}.unsigned-note code{font-family:ui-monospace,Menlo,Consolas,monospace}.editor{grid-template-columns:260px minmax(0,1fr) minmax(320px,460px);align-items:start;gap:16px;display:grid}.editor--builder{grid-template-columns:minmax(0,1fr) minmax(340px,480px)}@media (max-width:1200px){.editor,.editor--builder{grid-template-columns:1fr}}.editor__list{max-height:78vh;padding:10px;overflow-y:auto}.editor__course{text-transform:uppercase;letter-spacing:.04em;border-left:3px solid var(--brand);background:var(--color-surface-2);margin-top:8px;padding:8px 10px;font-size:13px;font-weight:700}.editor__lesson{text-align:left;border:none;border-bottom:1px solid var(--color-border);width:100%;font:inherit;color:var(--color-text);cursor:pointer;background:0 0;gap:8px;padding:8px 10px;font-size:14px;display:flex}.editor__lesson:hover{background:var(--color-surface-2)}.editor__lesson--active{background:var(--brand);color:var(--on-brand);font-weight:700}.editor__lesson-order{color:var(--color-text-dim);min-width:18px}.editor__lesson--active .editor__lesson-order{color:var(--on-brand)}.editor__form,.editor__preview{max-height:78vh;overflow-y:auto}.editor__section{border-top:1px solid var(--color-border);margin:22px 0 8px;padding-top:14px}.editor__step{border:1px solid var(--color-border);border-left:3px solid var(--brand);background:var(--color-surface-2);margin-bottom:12px;padding:12px}.editor__step-head{justify-content:space-between;align-items:center;margin-bottom:8px;display:flex}.editor__media-add{flex-wrap:wrap;align-items:center;gap:8px;margin-top:8px;display:flex}.editor__media-has{background:var(--color-surface);border:1px solid var(--color-border);justify-content:space-between;align-items:center;gap:12px;margin-top:8px;padding:8px 10px;font-size:13px;display:flex}.editor__attachments{flex-direction:column;gap:6px;margin:8px 0;display:flex}.editor__attachment-thumb{flex-shrink:0;max-width:96px;max-height:64px;overflow:hidden}.editor__attachment-thumb img,.editor__attachment-thumb video{object-fit:cover;max-width:96px;max-height:64px}.teacher-note{color:#3a2e00;background:#fff8e1;border:1px solid #b8860b;margin:10px 0;padding:10px 12px}.teacher-note__badge{text-transform:uppercase;letter-spacing:.04em;color:#6b4e00;background:#ffe9a8;margin-bottom:6px;padding:2px 8px;font-size:11px;font-weight:700;display:inline-block}.teacher-note textarea{background:#fffdf5;width:100%}.editor__url{border:1px solid var(--color-border);min-width:220px;font:inherit;flex:1;padding:8px;font-size:13px}.editor__mono{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px}.preview__switch{gap:8px;margin-bottom:12px;display:flex}.preview__device{color:#dfe1e5;background:#17181a;border:1px solid #393b40;padding:0 0 16px}.preview__header{border-bottom:3px solid var(--brand);background:#000;justify-content:space-between;align-items:center;gap:12px;padding:14px 16px;display:flex}.preview__title{color:#fff;margin:0;font-size:17px}.preview__sub{color:#b4b8bf;margin:4px 0 0;font-size:12px}.preview__start{background:var(--brand);color:var(--on-brand);white-space:nowrap;padding:7px 16px;font-weight:700}.preview__body{gap:18px;padding:16px;display:grid}.preview__summary{color:#b4b8bf;margin:0;font-size:14px}.preview__section{text-transform:uppercase;letter-spacing:.05em;color:#b4b8bf;margin:0 0 6px;font-size:12px}.preview__text{margin:0 0 8px;font-size:14px;line-height:1.5}.preview__list{margin:0;padding-left:18px;font-size:14px;line-height:1.6}.preview__step{border-left:2px solid #393b40;margin-bottom:12px;padding-left:12px}.preview__step-head{align-items:center;gap:8px;margin-bottom:4px;display:flex}.preview__step-num{background:var(--brand);color:var(--on-brand);text-align:center;min-width:20px;font-size:12px;font-weight:700}.preview__media{border:1px solid #393b40;max-width:100%;margin-top:8px;display:block}.preview__media-link{color:var(--brand);margin-top:8px;font-size:13px;display:inline-block}.preview__check{color:#00f0ff;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12px}.preview__code{background:#0b0b0c;border:1px solid #393b40;margin:0;padding:10px;font-size:12px;overflow-x:auto}.preview__hint-btn{border:1px solid var(--brand);color:var(--brand);font:inherit;cursor:pointer;background:0 0;padding:6px 14px;font-size:13px}.preview__note{color:var(--color-text-dim);margin-top:10px;font-size:12px}.md{gap:4px;margin-bottom:14px;display:grid}.md__head{justify-content:space-between;align-items:baseline;gap:12px;display:flex}.md__bar{gap:4px;display:flex}.md__bar button{font:inherit;background:var(--color-surface-2);border:1px solid var(--color-border);cursor:pointer;min-width:32px;padding:4px 8px;font-size:13px}.md__bar button:hover{background:var(--brand);color:var(--on-brand)}.md textarea{border:1px solid var(--color-border);width:100%;font:inherit;padding:8px;font-size:14px}.md__preview{border:1px solid var(--color-border);background:var(--color-surface-2);min-height:60px;padding:10px 12px;font-size:14px}.md__preview h3,.md__preview h4,.md__preview h5{margin:6px 0 4px;font-size:15px}.md__preview p{margin:0 0 6px}.md__preview ul{margin:0 0 6px;padding-left:18px}.md__help{color:var(--color-text-dim);margin:0;font-size:12px}.app-main--wide{max-width:1500px}.editor__drafts{gap:4px;margin:8px 0;padding:0;list-style:none;display:grid}.editor__drafts li{background:var(--color-surface-2);border:1px solid var(--color-border);grid-template-columns:minmax(0,1fr) auto auto;align-items:baseline;gap:12px;padding:6px 8px;display:grid}.editor__section--first{border-top:none;margin-top:0;padding-top:0}.doc-diagram{margin:1.5rem 0}.doc-diagram figcaption{color:#666;text-transform:uppercase;letter-spacing:.05em;padding-bottom:.35rem;font-size:.85rem}.doc-group+.doc-group{margin-top:2.5rem}.doc-group__title{border-bottom:2px solid var(--rb-ink,#1a1a1a);text-transform:uppercase;letter-spacing:.06em;margin:0;padding-bottom:.5rem;font-size:1.05rem}.doc-list{flex-direction:column;gap:.75rem;margin-top:1.5rem;display:flex}.doc-card{border:1px solid var(--border,#d9d9d9);color:inherit;flex-direction:column;gap:.35rem;padding:1rem 1.25rem;text-decoration:none;display:flex}.doc-card:hover{border-color:var(--rb-yellow,#fff200)}.doc-card__title{font-weight:700}.doc-card__summary{color:#666;font-size:.92rem}.doc{max-width:46rem;line-height:1.6}.doc h2{margin-top:2rem}.doc h3,.doc h4{margin-top:1.5rem}.doc table{border-collapse:collapse;margin:1rem 0;font-size:.94rem;display:block;overflow-x:auto}.doc th,.doc td{border:1px solid var(--border,#d9d9d9);text-align:left;vertical-align:top;padding:.4rem .6rem}.doc th{background:#f5f5f5}.doc pre{border:1px solid var(--border,#d9d9d9);background:#f5f5f5;padding:.75rem 1rem;overflow-x:auto}.doc code{font-size:.9em}.doc blockquote{border-left:3px solid var(--rb-yellow,#fff200);color:#555;margin:1rem 0;padding-left:1rem}.doc hr{border:none;border-top:1px solid var(--border,#d9d9d9);margin:2rem 0}.shots{grid-template-columns:repeat(auto-fill,148px);justify-content:center;gap:10px;margin-top:14px;display:grid}.shots__item{border:1px solid var(--color-border);background:var(--color-surface-2);text-align:left;cursor:pointer;font:inherit;flex-direction:column;padding:0;display:flex;overflow:hidden}.shots__item:hover{border-color:var(--rb-black)}.shots__item img{aspect-ratio:16/10;object-fit:cover;background:var(--rb-black);width:100%;display:block}.shots__item span{min-height:3.1em;color:var(--color-text-dim);padding:6px 8px 8px;font-size:.6875rem;line-height:1.3;display:block}.lightbox{z-index:50;background:#000000eb;justify-content:center;align-items:center;padding:3rem 1rem;display:flex;position:fixed;inset:0}.lightbox__figure{flex-direction:column;gap:10px;max-width:min(1400px,92vw);max-height:88vh;margin:0;display:flex}.lightbox__figure img{object-fit:contain;border:1px solid #ffffff24;max-width:100%;max-height:80vh}.lightbox__figure figcaption{color:var(--rb-white);text-align:center;font-size:.9375rem}.lightbox__close,.lightbox__nav{color:var(--rb-white);cursor:pointer;background:0 0;border:none;line-height:1;position:absolute}.lightbox__close{font-size:1.5rem;top:1rem;right:1.25rem}.lightbox__nav{padding:0 1rem;font-size:3rem;top:50%;transform:translateY(-50%)}.lightbox__nav:hover{color:var(--brand)}.lightbox__nav--prev{left:.5rem}.lightbox__nav--next{right:.5rem}.delivery{margin-top:1rem}.delivery__title{margin:0 0 1rem}.delivery__steps{gap:.875rem;margin:0;padding:0;list-style:none;display:grid}.delivery__step{grid-template-columns:2rem minmax(0,1fr);align-items:start;gap:.75rem;display:grid}.delivery__marker{border:2px solid var(--color-border);background:var(--color-surface);width:2rem;height:2rem;color:var(--color-text-dim);justify-content:center;align-items:center;font-weight:700;display:inline-flex}.delivery__step--done .delivery__marker{background:var(--brand);border-color:var(--brand);color:var(--on-brand)}.delivery__step--todo .delivery__marker{border-color:var(--color-warn);color:var(--color-warn)}.delivery__head{flex-wrap:wrap;align-items:baseline;gap:.25rem .75rem;display:flex}.delivery__step-title{font-weight:600}.delivery__state{border:1px solid var(--color-border);background:var(--color-surface-2);color:var(--color-text-dim);padding:.1rem .5rem;font-size:.75rem;font-weight:600}.delivery__step--todo .delivery__state{border-color:var(--color-warn);color:var(--color-warn)}.delivery__who{color:var(--color-text-dim);margin-top:.125rem;font-size:.8125rem}.delivery__detail{margin:.25rem 0 0;font-size:.9375rem}.delivery__note{border-top:1px solid var(--color-border);color:var(--color-text-dim);margin:1rem 0 0;padding-top:.75rem;font-size:.875rem}.delivery__note+.delivery__note{border-top:none;margin-top:.5rem;padding-top:0}.publication{border-top:1px solid var(--color-border);margin-top:1rem;padding-top:.875rem}.publication__head{flex-wrap:wrap;align-items:baseline;gap:.25rem .75rem;display:flex}.publication__title{font-weight:600}.publication__state{border:1px solid var(--color-border);background:var(--color-surface-2);color:var(--color-text-dim);padding:.1rem .5rem;font-size:.75rem;font-weight:600}.publication__state--pending,.publication__state--published-changed{border-color:var(--color-accent);color:var(--color-accent)}.publication__state--published{background:var(--brand);border-color:var(--brand);color:var(--on-brand)}.publication__state--rejected{border-color:var(--color-warn);color:var(--color-warn)}.publication__detail{margin:.375rem 0 0;font-size:.9375rem}.publication__reason{border-left:3px solid var(--color-warn);background:var(--color-surface-2);margin-top:.75rem;padding:.625rem .875rem}.publication__reason-label{color:var(--color-text-dim);font-size:.75rem;font-weight:600;display:block}.publication__reason p{white-space:pre-wrap;overflow-wrap:anywhere;margin:.25rem 0 0}.publication__link{margin:.5rem 0 0;font-size:.9375rem}.publication__actions{flex-wrap:wrap;align-items:center;gap:.5rem .75rem;margin-top:.75rem;display:flex}.publication__hint{color:var(--color-text-dim);font-size:.8125rem}.page-lead{color:var(--color-text-dim);margin:-.5rem 0 1rem;font-size:.9375rem}.pub-queue{gap:1rem;display:grid}.pub-request__head{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:.25rem 1rem;display:flex}.pub-request__title{overflow-wrap:anywhere;margin:0}.pub-request__meta,.pub-request__author{color:var(--color-text-dim);font-size:.8125rem}.pub-request__author{overflow-wrap:anywhere;margin:.25rem 0 0}.pub-request__email{color:var(--color-text)}.pub-request__description{white-space:pre-wrap;margin:.5rem 0 0}.pub-request__flags{border-left:3px solid var(--color-warn);background:var(--color-surface-2);margin:.75rem 0 0;padding:.5rem .875rem .5rem 1.75rem;font-size:.875rem}.pub-request__lessons{gap:.5rem;margin-top:.75rem;display:grid}.pub-request__lessons-title{margin:0}.pub-lesson{border:1px solid var(--color-border);background:var(--color-surface)}.pub-lesson>summary{cursor:pointer;flex-wrap:wrap;align-items:baseline;gap:.25rem .75rem;padding:.625rem .875rem;display:flex}.pub-lesson[open]>summary{border-bottom:1px solid var(--color-border)}.pub-lesson__title{overflow-wrap:anywhere;font-weight:600}.pub-lesson__meta{color:var(--color-text-dim);font-size:.8125rem}.pub-lesson__body{min-width:0;padding:.875rem}.pub-lesson__gap-flag{border:1px solid var(--color-warn);color:var(--color-warn);padding:.1rem .5rem;font-size:.75rem;font-weight:600}.pub-lesson__gaps{border-left:3px solid var(--color-warn);background:var(--color-surface-2);margin-bottom:.75rem;padding:.625rem .875rem;font-size:.875rem}.pub-lesson__gaps ul{overflow-wrap:anywhere;margin:.375rem 0 0;padding-left:1.25rem}.pub-lesson__raw{margin-top:.75rem}.pub-lesson__raw summary{cursor:pointer;font-size:.875rem;font-weight:600}.pub-lesson__raw pre{background:var(--color-surface-2);border:1px solid var(--color-border);white-space:pre-wrap;overflow-wrap:anywhere;max-height:24rem;margin:.375rem 0 0;padding:.5rem .75rem;font-size:.8125rem;overflow:auto}.pub-lesson__task{margin-top:.75rem}.pub-lesson__task-label{color:var(--color-text-dim);font-size:.8125rem;font-weight:600}.pub-lesson__task pre{background:var(--color-surface-2);border:1px solid var(--color-border);margin:.25rem 0 0;padding:.5rem .75rem;font-size:.8125rem;overflow-x:auto}.pub-request__actions{flex-wrap:wrap;align-items:flex-start;gap:.75rem;margin-top:1rem;display:flex}.pub-request__reject{flex:16rem}.pub-request__reject summary{cursor:pointer;list-style:none}.pub-request__reject summary::-webkit-details-marker{display:none}.pub-request__reject-form{margin-top:.75rem}.pub-request__reject-form .form-field span{margin-bottom:.375rem;font-size:.875rem;display:block}.app-main:has(>.editor--builder){max-width:1500px}.md textarea,.editor__form textarea{resize:vertical}.md textarea{min-height:8rem;line-height:1.5}.editor__form textarea.editor__mono{width:100%;line-height:1.45}.program__hint{border-left:3px solid var(--brand);background:var(--color-surface-2);margin:.25rem 0;padding:.625rem .75rem;font-size:.875rem}.program__picture{flex-wrap:wrap;align-items:center;gap:.5rem .75rem;margin-top:.25rem;display:flex}.program__picture label.btn{color:var(--color-text);cursor:pointer;font-size:.9375rem}.program__picture label.btn-primary{color:var(--on-brand)}.doc-card__mark{background:var(--rb-yellow,#fff200);color:var(--rb-ink,#1a1a1a);text-transform:uppercase;letter-spacing:.04em;align-self:flex-start;padding:.1rem .5rem;font-size:.78rem;font-weight:700}.doc-img{border:1px solid var(--border,#d9d9d9);max-width:100%;height:auto;margin:.75rem 0}.py-cmd{border-top:1px solid var(--border,#d9d9d9);margin-top:1.5rem;padding-top:1rem}.py-cmd:target{background:#fffbd1}.py-cmd__title{margin:0}.py-cmd__title a{color:inherit;text-decoration:none}.py-cmd__summary{font-weight:600}.py-cmd__example{position:relative}.py-copy{margin-top:.25rem}.py-cmd__title code{font-size:1.05rem}