/* FlashBoards Learn — article & hub pages in the FlashBoards "Editorial / Polished" design
   (tokens and component patterns from flashboards-apps/editorial.css and assistant/assistant.css).
   Dark only. Lime marks the one real action per screen. Hairlines, not cards. Corners 2–4px. No gradients. */

@font-face{font-family:'DM Sans';src:url(fonts/DM-Sans-Latin.woff2)format('woff2');font-weight:100 1000;font-style:normal;font-display:swap}
@font-face{font-family:'Zalando Sans Expanded';src:url(fonts/Zalando-Sans-Expanded-Latin.woff2)format('woff2');font-weight:100 1000;font-style:normal;font-display:swap}
@font-face{font-family:'Fira Code';src:url(fonts/FiraCode-Regular.woff2)format('woff2');font-weight:400;font-style:normal;font-display:swap}

:root{
  color-scheme:dark;
  --ed-sans:'DM Sans',Inter,-apple-system,BlinkMacSystemFont,system-ui,sans-serif;
  --ed-display:'Zalando Sans Expanded','DM Sans',Inter,system-ui,sans-serif;
  --ed-mono:'Fira Code',ui-monospace,SFMono-Regular,Menlo,monospace;
  --ed-page:#121212; --ed-canvas:#151515; --ed-sunken:#181818; --ed-raise:#1e1e1e; --ed-raise-hover:#262626; --ed-media:#0c0c0c;
  --ed-rule:#2a2a2a; --ed-rule-strong:#3b3b3b; --ed-rule-hover:#52524c;
  --ed-ink:#f4f4f2; --ed-ink-2:#b9b9b3; --ed-ink-3:#91918b; --ed-ink-4:#6e6e68;
  --ed-lime:#d1ff69; --ed-lime-hover:#e0ff97; --ed-lime-ink:#0d1004; --ed-lime-line:#6f8a3a;
  --ed-lime-wash:rgba(209,255,105,.09); --ed-lime-wash-2:rgba(209,255,105,.16);
  --w-text:72ch; --w-page:1180px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--ed-page);color:var(--ed-ink-2);font:15px/1.65 var(--ed-sans);-webkit-font-smoothing:antialiased}
a{color:var(--ed-ink);text-decoration:underline;text-decoration-color:var(--ed-rule-hover);text-underline-offset:3px}
a:hover{text-decoration-color:var(--ed-lime)}
:focus-visible{outline:1px solid var(--ed-lime);outline-offset:2px}
img{max-width:100%;display:block}

/* ---- top bar */
.lr-top{position:sticky;top:0;z-index:5;background:rgba(18,18,18,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--ed-rule)}
.lr-top-in{max-width:var(--w-page);margin:0 auto;padding:0 16px;height:48px;display:flex;align-items:center;gap:18px}
.lr-brand{display:flex;align-items:center;gap:8px;color:var(--ed-ink);text-decoration:none;font:700 13px/1 var(--ed-display);letter-spacing:-.006em}
.lr-brand svg{width:18px;height:18px}
.lr-brand small{font:10px/1 var(--ed-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--ed-ink-4)}
.lr-top nav{display:flex;gap:14px;overflow-x:auto;scrollbar-width:none;flex:1}
.lr-top nav a{white-space:nowrap;font-size:12.5px;color:var(--ed-ink-3);text-decoration:none}
.lr-top nav a:hover,.lr-top nav a[aria-current]{color:var(--ed-ink)}
.lr-btn{display:inline-flex;align-items:center;gap:6px;min-height:34px;padding:7px 12px;border:1px solid var(--ed-rule-strong);border-radius:3px;background:var(--ed-raise);color:var(--ed-ink-2);font:500 12.5px/1 var(--ed-sans);text-decoration:none;white-space:nowrap;cursor:pointer}
.lr-btn:hover{background:var(--ed-raise-hover);border-color:var(--ed-lime-line);color:var(--ed-ink)}
.lr-btn.primary{background:var(--ed-lime);border-color:var(--ed-lime);color:var(--ed-lime-ink);font-weight:600;border-radius:2px}
.lr-btn.primary:hover{background:var(--ed-lime-hover);border-color:var(--ed-lime-hover)}

/* ---- layout */
.lr-page{max-width:var(--w-page);margin:0 auto;padding:22px 16px 64px;display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:48px}
.lr-main{min-width:0}
.lr-aside{position:sticky;top:70px;align-self:start;max-height:calc(100vh - 90px);overflow:auto}
@media (max-width:980px){.lr-page{grid-template-columns:minmax(0,1fr)}.lr-aside{display:none}}

.lr-crumbs{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 18px;padding:0;list-style:none;font:10px/1.4 var(--ed-mono);letter-spacing:.11em;text-transform:uppercase;color:var(--ed-ink-4)}
.lr-crumbs a{color:var(--ed-ink-3);text-decoration:none}
.lr-crumbs a:hover{color:var(--ed-ink)}
.lr-crumbs li+li::before{content:"/";margin-right:6px;color:var(--ed-rule-strong)}
.lr-kicker{font:10px/1.4 var(--ed-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--ed-ink-4);margin:0 0 8px}
h1.lr-h1{margin:0 0 6px;font:700 30px/1.15 var(--ed-display);letter-spacing:-.02em;color:var(--ed-ink);text-wrap:balance}
.lr-aka{margin:0 0 16px;font:10.5px/1.5 var(--ed-mono);letter-spacing:.04em;color:var(--ed-ink-4)}
.lr-lede{max-width:var(--w-text);margin:0 0 20px;font-size:17px;line-height:1.6;color:var(--ed-ink)}

.lr-quick{max-width:var(--w-text);margin:0 0 26px;border-top:1px solid var(--ed-rule-strong)}
.lr-quick div{display:grid;grid-template-columns:132px 1fr;gap:12px;padding:9px 0;border-bottom:1px solid var(--ed-rule)}
.lr-quick dt{font:9.5px/1.9 var(--ed-mono);letter-spacing:.11em;text-transform:uppercase;color:var(--ed-ink-4)}
.lr-quick dd{margin:0;font-size:14px;color:var(--ed-ink-2)}
.lr-quick code{font:12px/1.5 var(--ed-mono);color:var(--ed-ink)}

.lr-hero{margin:0 0 30px}
.lr-hero img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;border-radius:2px;border:1px solid var(--ed-rule);background:var(--ed-media)}
.lr-hero figcaption,.lr-fig figcaption{margin-top:7px;font-size:12px;line-height:1.5;color:var(--ed-ink-3)}
.lr-hero figcaption em,.lr-fig figcaption em{color:var(--ed-ink-2)}
.lr-meta{display:block;margin-top:3px;font:9.5px/1.4 var(--ed-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ed-ink-4)}

/* ---- body copy */
.lr-body{max-width:var(--w-text)}
.lr-body h2{margin:38px 0 10px;padding-top:16px;border-top:1px solid var(--ed-rule);font:700 18px/1.3 var(--ed-display);letter-spacing:-.01em;color:var(--ed-ink);text-wrap:balance;scroll-margin-top:64px}
.lr-body h3{margin:24px 0 6px;font-size:15px;font-weight:700;color:var(--ed-ink);scroll-margin-top:64px}
.lr-body p{margin:0 0 14px}
.lr-body ul,.lr-body ol{margin:0 0 14px;padding-left:20px}
.lr-body li{margin:4px 0}
.lr-body li::marker{color:var(--ed-lime-line)}
.lr-body strong{color:var(--ed-ink);font-weight:600}
.lr-body code{font:12px var(--ed-mono);padding:1px 4px;border-radius:2px;background:var(--ed-raise);color:var(--ed-ink)}
.lr-body blockquote{margin:0 0 14px;padding:4px 12px;border-left:2px solid var(--ed-rule-strong);color:var(--ed-ink-3)}

.lr-section-cap{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin:40px 0 12px;padding-bottom:6px;border-bottom:1px solid var(--ed-rule-strong)}
.lr-section-cap h2{margin:0;padding:0;border:0;font:700 18px/1.3 var(--ed-display);letter-spacing:-.01em;color:var(--ed-ink)}
.lr-section-cap span{font:10px var(--ed-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--ed-ink-4)}

/* ---- gallery */
.lr-gallery{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 14px;margin:0 0 8px}
@media (max-width:640px){.lr-gallery{grid-template-columns:minmax(0,1fr)}}
.lr-fig{margin:0}
.lr-fig img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;border-radius:2px;border:1px solid var(--ed-rule);background:var(--ed-media)}
.lr-fig a:hover img{border-color:var(--ed-lime-line)}

/* ---- AI recipes */
.lr-recipes{border-top:1px solid var(--ed-rule-strong);max-width:var(--w-text)}
.lr-recipe{padding:14px 0 16px;border-bottom:1px solid var(--ed-rule)}
.lr-recipe-head{display:flex;align-items:center;gap:8px;margin-bottom:8px}
.lr-tag{padding:2px 7px;border:1px solid var(--ed-rule-strong);border-radius:3px;font:9.5px/1.5 var(--ed-mono);letter-spacing:.05em;text-transform:uppercase;color:var(--ed-ink-3)}
.lr-recipe-head b{font:700 14px/1.3 var(--ed-display);color:var(--ed-ink)}
.lr-pre{position:relative;margin:0 0 10px;padding:10px 12px;padding-right:64px;font:12px/1.55 var(--ed-mono);color:var(--ed-ink-2);background:var(--ed-sunken);border:1px solid var(--ed-rule-strong);border-radius:3px;white-space:pre-wrap;word-break:break-word}
.lr-copy{position:absolute;top:6px;right:6px;min-height:26px;padding:3px 8px;font:10px var(--ed-mono);letter-spacing:.06em;text-transform:uppercase;border:1px solid var(--ed-rule-strong);border-radius:3px;background:var(--ed-raise);color:var(--ed-ink-3);cursor:pointer}
.lr-copy:hover{color:var(--ed-ink);border-color:var(--ed-lime-line)}
.lr-recipe p{margin:0;font-size:13.5px;color:var(--ed-ink-3)}

/* ---- CTA (the one lime block on the screen) */
.lr-cta{max-width:var(--w-text);margin:28px 0 8px;padding:16px 18px;border-left:2px solid var(--ed-lime);background:var(--ed-lime-wash);border-radius:0 3px 3px 0;display:flex;gap:18px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.lr-cta small{display:block;font:9.5px var(--ed-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--ed-ink-4);margin-bottom:4px}
.lr-cta b{display:block;font:700 15px/1.35 var(--ed-display);color:var(--ed-ink)}
.lr-cta p{margin:4px 0 0;font-size:13.5px;color:var(--ed-ink-2)}

/* ---- FAQ */
.lr-faq{max-width:var(--w-text);border-top:1px solid var(--ed-rule-strong)}
.lr-faq details{border-bottom:1px solid var(--ed-rule)}
.lr-faq summary{list-style:none;cursor:pointer;padding:12px 28px 12px 0;position:relative;font-weight:600;font-size:14.5px;color:var(--ed-ink)}
.lr-faq summary::-webkit-details-marker{display:none}
.lr-faq summary::after{content:"+";position:absolute;right:4px;top:10px;font:14px var(--ed-mono);color:var(--ed-ink-4)}
.lr-faq details[open] summary::after{content:"–";color:var(--ed-lime)}
.lr-faq .lr-a{padding:0 0 14px;font-size:14.5px}
.lr-faq .lr-a p{margin:0 0 8px}

/* ---- related rows */
.lr-rows{list-style:none;margin:0;padding:0;border-top:1px solid var(--ed-rule-strong)}
.lr-rows li{border-bottom:1px solid var(--ed-rule)}
.lr-rows a{display:grid;grid-template-columns:1fr auto;gap:12px;padding:10px 6px;text-decoration:none;color:var(--ed-ink)}
.lr-rows a:hover{background:var(--ed-raise)}
.lr-rows a span{font-size:14px;font-weight:600}
.lr-rows a i{font:normal 9.5px/2 var(--ed-mono);letter-spacing:.11em;text-transform:uppercase;color:var(--ed-ink-4)}
.lr-rows a p{grid-column:1/-1;margin:2px 0 0;font-size:12.5px;font-weight:400;color:var(--ed-ink-3)}

/* ---- aside TOC */
.lr-toc h4{margin:0 0 8px;font:9.5px var(--ed-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--ed-ink-4);font-weight:400}
.lr-toc ol{list-style:none;margin:0 0 24px;padding:0}
.lr-toc a{display:block;padding:5px 0 5px 10px;border-left:2px solid var(--ed-rule);font-size:12.5px;line-height:1.4;color:var(--ed-ink-3);text-decoration:none}
.lr-toc a:hover{color:var(--ed-ink);border-left-color:var(--ed-lime-line)}

/* ---- hub page */
.lr-hub-list{max-width:none}
.lr-hub-list a{grid-template-columns:minmax(0,1fr) auto}
.lr-gloss{max-width:var(--w-text)}
.lr-gloss dt{margin-top:14px;font-weight:700;color:var(--ed-ink);scroll-margin-top:64px}
.lr-gloss dd{margin:2px 0 0;font-size:14px}

.lr-foot{border-top:1px solid var(--ed-rule);padding:20px 16px 40px;text-align:center;font:10px var(--ed-mono);letter-spacing:.11em;text-transform:uppercase;color:var(--ed-ink-4)}
.lr-foot a{color:var(--ed-ink-3)}

/* ---- prompt price, try button, generated result, motion clips */
.lr-price{margin-left:auto;font:10px/1.5 var(--ed-mono);letter-spacing:.04em;color:var(--ed-ink-4)}
.lr-try{margin-top:10px}
.lr-result{margin:0 0 10px}
.lr-result img,.lr-result video{width:100%;height:auto;border-radius:2px;border:1px solid var(--ed-rule);background:var(--ed-media)}
.lr-result figcaption{margin-top:5px;font:9.5px/1.4 var(--ed-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ed-ink-4)}
.lr-vid video,.lr-vid img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;border-radius:2px;border:1px solid var(--ed-rule);background:var(--ed-media)}

/* пересъёмка сцены: генерация — главная, оригинал — маленький справа */
.lr-compare{display:grid;grid-template-columns:minmax(0,3fr) minmax(0,1fr);gap:12px;align-items:start;margin:0 0 6px}
.lr-compare .lr-result{margin:0}
.lr-remake-gen video{aspect-ratio:auto;background:#000}
.lr-remake-orig{position:relative;opacity:.82;transition:opacity .15s}
.lr-remake-orig:hover{opacity:1}
.lr-remake-orig video{aspect-ratio:16/9;object-fit:cover;background:#000}
.lr-remake-tag{position:absolute;top:6px;left:6px;z-index:1;padding:2px 6px;border-radius:2px;background:rgba(0,0,0,.62);color:#f4f4f2;font:9px/1.3 var(--ed-mono);letter-spacing:.06em;text-transform:uppercase;pointer-events:none}
.lr-remake-gen figcaption b{color:var(--ed-lime);font-weight:500}
.lr-remake-orig figcaption{text-transform:none;letter-spacing:0;font:11.5px/1.45 var(--ed-sans);color:var(--ed-ink-3)}
.lr-compare-note{margin:4px 0 10px;font-size:12.5px;line-height:1.5;color:var(--ed-ink-3)}
@media (max-width:640px){.lr-compare{grid-template-columns:minmax(0,1fr)}.lr-remake-orig{width:55%}}

/* разметка корпуса по клику на кадр */
.lr-annotated img,.lr-annotated video{cursor:zoom-in}
.lr-annotated img:focus-visible,.lr-annotated video:focus-visible{outline:2px solid var(--ed-ink-2);outline-offset:2px}
.lr-box{width:min(1100px,calc(100vw - 32px));max-height:calc(100vh - 32px);padding:18px;border:1px solid var(--ed-rule);border-radius:4px;background:var(--ed-page);color:var(--ed-ink);overflow:auto}
.lr-box::backdrop{background:rgba(0,0,0,.78)}
.lr-box-x{position:sticky;top:0;float:right;margin:-6px -6px 6px 6px;width:34px;height:34px;border:1px solid var(--ed-rule);border-radius:3px;background:var(--ed-page);color:inherit;font-size:20px;line-height:1;cursor:pointer}
.lr-box-media img,.lr-box-media video{display:block;width:100%;max-height:62vh;object-fit:contain;background:#000}
.lr-box-cap{margin:8px 0 14px;font-size:13px;line-height:1.55;color:var(--ed-ink-3)}
.lr-box-dl{margin:0;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:0 28px}
.lr-box-h{grid-column:1/-1;font:10px/1.4 var(--ed-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ed-ink-4);padding-bottom:6px;border-bottom:1px solid var(--ed-rule)}
.lr-box-dl div{display:grid;grid-template-columns:110px minmax(0,1fr);gap:10px;padding:7px 0;border-bottom:1px solid var(--ed-rule)}
.lr-box-dl dt{font:10px/1.6 var(--ed-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ed-ink-4)}
.lr-box-dl dd{margin:0;font-size:13px;line-height:1.5}
@media (max-width:640px){.lr-box-dl{grid-template-columns:minmax(0,1fr)}}
.lr-hasclip{position:relative}
.lr-hasclip::before{content:"\25B6  video";position:absolute;top:8px;left:8px;z-index:1;padding:3px 7px 3px 6px;border-radius:2px;background:rgba(0,0,0,.62);color:#f4f4f2;font:9.5px/1.3 var(--ed-mono);letter-spacing:.06em;text-transform:uppercase;pointer-events:none}
.lr-hasclip img{cursor:zoom-in}

/* Image → Video: входная картинка слева, видео справа */
.lr-i2v{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,3fr);gap:10px;align-items:center;margin:0 0 10px}
.lr-i2v .lr-result{margin:0}
.lr-i2v-in{position:relative}
.lr-i2v-in img{aspect-ratio:auto}
.lr-i2v-in figcaption{text-transform:none;letter-spacing:0;font:11.5px/1.45 var(--ed-sans);color:var(--ed-ink-3)}
.lr-i2v-arrow{font:18px/1 var(--ed-mono);color:var(--ed-ink-4)}
.lr-i2v-out figcaption b,.lr-remake-gen figcaption b{color:var(--ed-lime);font-weight:500}
.lr-mode{white-space:nowrap}
@media (max-width:640px){.lr-i2v{grid-template-columns:minmax(0,1fr)}.lr-i2v-in{width:55%}.lr-i2v-arrow{display:none}}

/* JSON-промпт: компактно, раскрывается кнопкой */
.lr-json{position:relative;margin:0 0 10px}
.lr-json .lr-pre{margin:0}
.lr-json.is-collapsed .lr-pre{max-height:168px;overflow:hidden}
.lr-json.is-collapsed .lr-pre::after{content:"";position:absolute;left:0;right:0;bottom:0;height:64px;background:linear-gradient(to bottom,transparent,var(--ed-sunken));pointer-events:none}
.lr-json .lr-pre{position:relative}
.lr-json-toggle{margin-top:6px;padding:4px 10px;border:1px solid var(--ed-rule-strong);border-radius:3px;background:transparent;color:var(--ed-ink-2);font:10px/1.4 var(--ed-mono);letter-spacing:.06em;text-transform:uppercase;cursor:pointer}
.lr-json-toggle:hover{border-color:var(--ed-rule-hover);color:var(--ed-ink)}

/* Small interaction and keyboard repairs for the pinned Learn render. */
.lr-copy-prompt { margin-right: 7px; }
.lr-copy-status:not(:empty) { display: block; margin-top: 7px; color: var(--ed-ink-2); font-size: 12px; }
.lr-copy-fallback { display: block; width: 100%; min-height: 110px; margin: 8px 0; padding: 8px; color: var(--ed-ink); background: var(--ed-raise); border: 1px solid var(--ed-lime-line); }
a:focus-visible,button:focus-visible,summary:focus-visible,.lr-annotated img:focus-visible,.lr-annotated video:focus-visible { outline: 2px solid var(--ed-lime); outline-offset: 3px; }
@media (prefers-reduced-motion: reduce) { .lr-annotated video { animation: none; } }

/* MarketingHeader / FlashBoardsLockup styling; retain static Learn navigation.
   The existing Panel route owns authentication and signed-out redirects. */
.lr-top { background: rgba(15,15,15,.85); backdrop-filter: blur(12px); border-bottom-color: rgba(255,255,255,.1); }
.lr-top-in { max-width: none; height: auto; padding: 14px 32px 0; display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 14px 24px; }
.lr-brand { grid-column: 1; grid-row: 1; justify-self: start; gap: 12px; min-width: 0; font-size: 20px; font-weight: 900; line-height: 1; letter-spacing: -.02em; text-transform: uppercase; color: #ececec; }
.lr-brand-mark { width: auto; height: 26px; flex-shrink: 0; }
.lr-brand small { margin-left: 4px; padding-left: 16px; border-left: 1px solid rgba(255,255,255,.16); color: #a3a3a3; font-size: 10px; line-height: 20px; letter-spacing: .16em; }
.lr-top-in > .lr-btn { grid-column: 2; grid-row: 1; min-height: 34px; padding: 8px 16px; border: 0; border-radius: 4px; background: var(--ed-lime); color: #0f0f0f; font: 400 12px/18px var(--ed-mono); text-transform: uppercase; letter-spacing: .16em; }
.lr-top-in > .lr-btn:hover { background: var(--ed-lime-hover); color: #0f0f0f; }
.lr-top nav { grid-column: 1 / -1; grid-row: 2; min-width: 0; width: 100%; gap: 28px; border-top: 1px solid rgba(255,255,255,.08); scroll-padding-inline: 4px; padding-inline: 4px; }
.lr-top nav::-webkit-scrollbar { display: none; }
.lr-top nav a { flex-shrink: 0; display: flex; align-items: center; min-height: 42px; border-bottom: 2px solid transparent; font: 400 11px/1.4 var(--ed-mono); text-transform: uppercase; letter-spacing: .12em; color: #a3a3a3; }
.lr-top nav a:hover { color: #fff; }
.lr-top nav a[aria-current] { color: var(--ed-lime); border-bottom-color: var(--ed-lime); }
.lr-top nav a:focus-visible { outline-offset: -3px; }
.lr-aside { top: 128px; max-height: calc(100vh - 148px); }
.lr-main [id],.lr-gloss dt { scroll-margin-top: 128px; }
@media (max-width: 767px) {
  .lr-top-in { padding: 12px 16px 0; gap: 12px 16px; }
  .lr-brand { gap: 10px; font-size: clamp(13px,2.6vw,20px); }
  .lr-brand-mark { height: 22px; }
  .lr-brand small { margin-left: 0; padding-left: 10px; font-size: 9px; }
  .lr-top-in > .lr-btn { padding: 8px 14px; font-size: 11px; }
  .lr-top nav { gap: 24px; }
  .lr-top nav a { font-size: 10px; }
}
@media (max-width: 380px) { .lr-brand small { display: none; } }