.dl main.rg:where(:not(.v16-root *)){--col-pad:max(20px,20vw);--rhythm:112px;--head-to-body:40px;--ease-out:cubic-bezier(.23,1,.32,1);
  /* the kit's tokens the probe drew with, which the landing's sheet alone does not define (daylight-kit's values) */
  --sunk:#f3f0e7;--ok:#007a52;--accent-ink:#1b0f02;--ok-fill:rgba(0,188,125,.1);--accent-text:#8a4a00;
  --card-shadow:0 0 0 1px var(--line) inset,0 24px 48px -36px rgba(13,27,42,.36);
  --card-shadow-sm:0 0 0 1px var(--line) inset,0 10px 24px -20px rgba(13,27,42,.32)}
/* the hero's update line: the landing's "what's new" pill, without the link */
.dl main.rg .wn-strip span:where(:not(.v16-root *)){display:inline-flex;align-items:center;gap:10px;min-height:32px;padding:0 14px;border-radius:999px;background:var(--card);
  box-shadow:0 0 0 1px var(--line) inset;font-size:15px;font-weight:500;color:var(--fg)}
@media (max-width:1099px){.dl main.rg:where(:not(.v16-root *)){--col-pad:max(16px,env(safe-area-inset-left,0px));--rhythm:72px;--head-to-body:28px}}
.dl main.rg .wrap:where(:not(.v16-root *)){max-width:none;padding-left:var(--col-pad);padding-right:var(--col-pad)}
.dl main.rg .hero .wrap:where(:not(.v16-root *)){padding-left:max(16px,8vw);padding-right:max(16px,8vw)}
.dl main.rg .sec:where(:not(.v16-root *)){padding-top:var(--rhythm);padding-bottom:0;text-align:left}
.dl main.rg .hero + .sec:where(:not(.v16-root *)){padding-top:calc(var(--rhythm) + 40px)}
.dl main.rg .sec.close:where(:not(.v16-root *)){padding-bottom:var(--rhythm)}
.dl main.rg .sec-head:where(:not(.v16-root *)){justify-items:start;text-align:left;margin-bottom:var(--head-to-body);gap:12px}
.dl main.rg .sec-head .title:where(:not(.v16-root *)){font-weight:650;letter-spacing:-.025em}
.dl main.rg .sec-head .lede:where(:not(.v16-root *)){max-width:60ch;font-size:18px;line-height:1.55;font-weight:400;color:var(--fg2);text-wrap:pretty}
.dl main.rg .hero-h1:where(:not(.v16-root *)){font-size:19px;font-weight:400}
.dl main.rg .hero .rg-h1:where(:not(.v16-root *)){font-size:var(--t-display);max-width:16ch;margin-inline:auto}

/* cards: separate tiles on a 2-column grid, every tile the same padding, icon column and baseline */
.dl main.rg .p-pts:where(:not(.v16-root *)){display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;max-width:none;margin:0;padding:0;background:none;box-shadow:none;border:0;border-radius:0;list-style:none}
.dl main.rg .p-pt:where(:not(.v16-root *)){display:grid;grid-template-columns:var(--ctl) minmax(0,1fr);column-gap:16px;row-gap:6px;align-content:start;padding:24px;border:0;border-radius:20px;background:var(--card);box-shadow:var(--card-shadow-sm);text-align:left}
.dl main.rg .p-pt .p-pt-ico:where(:not(.v16-root *)){grid-row:1/3;margin:0;align-self:start}
.dl main.rg .p-pt b:where(:not(.v16-root *)){margin:0;min-height:var(--ctl);display:flex;align-items:center;font-size:19px;font-weight:600;letter-spacing:-.01em}
.dl main.rg .p-pt-line:where(:not(.v16-root *)){grid-column:2;margin:0;font-size:15px;line-height:1.55;font-weight:400;color:var(--fg2)}
.dl main.rg .p-num:where(:not(.v16-root *)){font-size:17px;font-weight:600;font-variant-numeric:tabular-nums}

/* windows: fit the column, five across; a phone scrolls the row */
.dl main.rg .cabin-row:where(:not(.v16-root *)){display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:20px;overflow:visible;padding:6px var(--col-pad) 0}
.dl main.rg .cw:where(:not(.v16-root *)){width:auto;min-width:0;align-content:start;grid-template-rows:auto auto auto}
.dl main.rg .cw-bezel:where(:not(.v16-root *)){width:100%}
.dl main.rg .cw b:where(:not(.v16-root *)){font-weight:600;line-height:1.3}
.dl main.rg .cw .num:where(:not(.v16-root *)){font-weight:400;color:var(--fg3)}

/* the film and the radio exchange under it, on the column */
.dl main.rg .rtr-grid:where(:not(.v16-root *)){grid-template-columns:minmax(0,1fr);gap:16px}
/* a chat (Aryan, 1 Nov 2026: "atc on left, you on right"), drawn as his pick O of the same day
   (round four of https://claude.ai/artifact/7KyDXR1bsk5x7B8SFA6W5i): ATC's calls in soft grey on the left, yours in solid
   orange on the right, the speaker named above each bubble. On its own the chat is one card; under the film the film
   and the chat share one card (.rg-unit), the screen set inside it. */
.dl main.rg .rg-tx:where(:not(.v16-root *)){list-style:none;margin:0;padding:16px;display:flex;flex-direction:column;gap:12px;border-radius:24px;background:var(--card);box-shadow:var(--card-shadow)}
.dl main.rg .rg-tx li:where(:not(.v16-root *)){display:flex;flex-direction:column;gap:4px;max-width:min(72%,560px)}
.dl main.rg .rg-tx li.atc:where(:not(.v16-root *)),.dl main.rg .rg-tx li.air:where(:not(.v16-root *)){align-self:flex-start}
.dl main.rg .rg-tx li.you:where(:not(.v16-root *)){align-self:flex-end;align-items:flex-end}
.dl main.rg .rg-tx .w:where(:not(.v16-root *)){padding:0 2px;font-size:11px;font-weight:600;line-height:1.2;letter-spacing:.08em;text-transform:uppercase;color:var(--fg3)}
.dl main.rg .rg-tx .you .w:where(:not(.v16-root *)){color:var(--accent-text)}
.dl main.rg .rg-tx p:where(:not(.v16-root *)){margin:0;padding:10px 14px;border-radius:16px;font-size:15px;line-height:1.5;font-weight:400;color:var(--fg);background:var(--sunk)}
.dl main.rg .rg-tx .atc p:where(:not(.v16-root *)),.dl main.rg .rg-tx .air p:where(:not(.v16-root *)){border-top-left-radius:4px}
.dl main.rg .rg-tx .air p:where(:not(.v16-root *)){background:#e4ebf3}.dl main.rg .rg-tx .air .w:where(:not(.v16-root *)){color:#46607d}
.dl main.rg .rg-tx .you p:where(:not(.v16-root *)){border-top-right-radius:4px;background:var(--accent);color:var(--accent-ink)}
.dl main.rg .rg-unit:where(:not(.v16-root *)){display:block;padding:8px;border-radius:24px;background:var(--card);box-shadow:var(--card-shadow)}
.dl main.rg .rg-unit .rtr-film:where(:not(.v16-root *)){width:100%;border-radius:17px}
.dl main.rg .rg-unit .rg-tx:where(:not(.v16-root *)){padding:24px 16px 16px;border-radius:0;background:none;box-shadow:none}
@media (max-width:760px){.dl main.rg .rg-tx li:where(:not(.v16-root *)){max-width:86%}.dl main.rg .rg-tx p:where(:not(.v16-root *)){font-size:14.5px}.dl main.rg .rg-unit .rg-tx:where(:not(.v16-root *)){padding:18px 8px 8px}}

/* question cards */
.dl main.rg .rg-qs:where(:not(.v16-root *)){display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.dl main.rg .rg-q:where(:not(.v16-root *)){display:grid;grid-template-rows:auto auto 1fr;align-content:start;gap:12px;padding:24px;border-radius:20px;background:var(--card);box-shadow:var(--card-shadow);text-align:left}
.dl main.rg .rg-q .tag:where(:not(.v16-root *)){font-size:11px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-text)}
.dl main.rg .rg-q b:where(:not(.v16-root *)){display:block;min-height:calc(2 * 1.35em);font-size:19px;font-weight:600;line-height:1.35;letter-spacing:-.01em}
.dl main.rg .rg-q ol:where(:not(.v16-root *)){align-self:start;display:grid;gap:8px;margin:0;padding:0;list-style:none}
.dl main.rg .rg-q li:where(:not(.v16-root *)){padding:11px 14px;border-radius:12px;background:var(--sunk);font-size:15px;font-weight:400}
.dl main.rg .rg-q li.ok:where(:not(.v16-root *)){background:var(--ok-fill);color:var(--ok);font-weight:600}

/* the questions people ask */
.dl main.rg .rg-faq:where(:not(.v16-root *)){text-align:left}
.dl main.rg .rg-faq details:where(:not(.v16-root *)){border-top:1px solid var(--line)}
.dl main.rg .rg-faq details:last-child:where(:not(.v16-root *)){border-bottom:1px solid var(--line)}
.dl main.rg .rg-faq summary:where(:not(.v16-root *)){display:flex;justify-content:space-between;gap:16px;padding:20px 0;list-style:none;cursor:pointer;font-size:18px;font-weight:600;letter-spacing:-.01em;transition:transform 160ms var(--ease-out)}
.dl main.rg .rg-faq summary:where(:not(.v16-root *))::-webkit-details-marker{display:none}
.dl main.rg .rg-faq summary:where(:not(.v16-root *))::after{content:"+";color:var(--fg3);transition:transform 200ms var(--ease-out)}
.dl main.rg .rg-faq details[open] summary:where(:not(.v16-root *))::after{transform:rotate(45deg)}
.dl main.rg .rg-faq details p:where(:not(.v16-root *)){margin:0;padding:0 0 22px;max-width:70ch;font-size:16px;line-height:1.6;font-weight:400;color:var(--fg2)}

.dl main.rg .rg-more:where(:not(.v16-root *)){margin:20px 0 0;position:relative;z-index:1}
/* where to go next */
.dl main.rg .rg-links:where(:not(.v16-root *)){display:grid;gap:32px;position:relative;z-index:1}
.dl main.rg .rg-links-label:where(:not(.v16-root *)){margin:0 0 12px;font-size:11px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--fg3)}
.dl main.rg .rg-links ul:where(:not(.v16-root *)){display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 32px;margin:0;padding:0;list-style:none}
.dl main.rg .rg-links li:where(:not(.v16-root *)){border-top:1px solid var(--line)}
.dl main.rg .rg-links a:where(:not(.v16-root *)){display:block;padding:14px 0;font-size:16px;font-weight:500;color:var(--fg);text-decoration:none}
@media (hover:hover) and (pointer:fine){.dl main.rg .rg-links a:hover:where(:not(.v16-root *)){color:var(--accent-text)}}
@media (max-width:860px){.dl main.rg .rg-links ul:where(:not(.v16-root *)){grid-template-columns:minmax(0,1fr)}}

/* the close: the landing's, with the line sized to the column */
.dl main.rg .close .display:where(:not(.v16-root *)){font-size:clamp(40px,4.4vw,64px)}
.dl main.rg .close-head:where(:not(.v16-root *)){text-align:center}

/* press feedback (Emil): a press is heard at once; switched off for reduced motion */
.dl main.rg .btn:where(:not(.v16-root *)),.dl main.rg .cw:where(:not(.v16-root *)){transition:transform 160ms var(--ease-out)}
.dl main.rg .btn:active:where(:not(.v16-root *)){transform:scale(.97)}
.dl main.rg .cw:active:where(:not(.v16-root *)){transform:scale(.98)}
.dl main.rg .rg-faq summary:active:where(:not(.v16-root *)){transform:scale(.99)}
@media (prefers-reduced-motion:reduce){.dl main.rg .btn:active:where(:not(.v16-root *)),.dl main.rg .cw:active:where(:not(.v16-root *)),.dl main.rg .rg-faq summary:active:where(:not(.v16-root *)){transform:none}}

@media (max-width:860px){
  .dl main.rg .p-pts:where(:not(.v16-root *)),.dl main.rg .rg-qs:where(:not(.v16-root *)){grid-template-columns:minmax(0,1fr)}
  .dl main.rg .rg-q b:where(:not(.v16-root *)){min-height:0}
  .dl main.rg .cabin-row:where(:not(.v16-root *)){grid-template-columns:repeat(5,minmax(150px,1fr));overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:12px}
}
/* the hero's runway reaches below the hero; the sections sit over it, as the landing's do */
.dl main.rg .p-pts:where(:not(.v16-root *)),.dl main.rg .rg-qs:where(:not(.v16-root *)),.dl main.rg .rg-tx:where(:not(.v16-root *)),.dl main.rg .rg-unit:where(:not(.v16-root *)),.dl main.rg .rg-faq:where(:not(.v16-root *)){position:relative;z-index:1}

.dl main.rg .p-pt .pcall:where(:not(.v16-root *)){grid-column:2;margin:10px 0 0;padding:11px 14px;border-radius:12px;background:var(--sunk);font-size:15px;line-height:1.5;color:var(--fg);font-weight:400}

.dl main.rg .trank:where(:not(.v16-root *)){position:relative;z-index:1;list-style:none;margin:0;padding:4px 24px;background:var(--card);border-radius:20px;box-shadow:var(--card-shadow-sm)}
.dl main.rg .trank li:where(:not(.v16-root *)){display:grid;grid-template-columns:28px minmax(0,1fr) auto;column-gap:16px;align-items:center;padding:18px 0;border-top:1px solid var(--line)}
.dl main.rg .trank li:first-child:where(:not(.v16-root *)){border-top:0}
.dl main.rg .trank .n:where(:not(.v16-root *)){font-size:15px;font-variant-numeric:tabular-nums;color:var(--fg3);font-weight:400}
.dl main.rg .trank .t:where(:not(.v16-root *)){display:grid;gap:2px;min-width:0}
.dl main.rg .trank b:where(:not(.v16-root *)){font-size:17px;font-weight:600;letter-spacing:-.01em;line-height:1.35;color:var(--fg)}
.dl main.rg .trank .c:where(:not(.v16-root *)){font-size:15px;line-height:1.5;color:var(--fg2)}
.dl main.rg .trank .lv:where(:not(.v16-root *)){font:600 11px/1 ui-monospace,Menlo,monospace;letter-spacing:.08em;text-transform:uppercase;border-radius:8px;padding:7px 10px;white-space:nowrap;text-align:center;min-width:88px}
.dl main.rg .trank .vh:where(:not(.v16-root *)){background:rgba(255,143,31,.14);color:#8a4a00}
.dl main.rg .trank .hi:where(:not(.v16-root *)){background:rgba(244,160,176,.28);color:#b03a5c}
.dl main.rg .trank .md:where(:not(.v16-root *)){background:rgba(112,170,240,.2);color:#2a5f9e}
.dl main.rg .trank .lo:where(:not(.v16-root *)){background:var(--sunk);color:var(--fg2)}
@media (max-width:860px){
  .dl main.rg .trank:where(:not(.v16-root *)){padding:4px 18px}
  .dl main.rg .trank li:where(:not(.v16-root *)){grid-template-columns:22px minmax(0,1fr) auto;column-gap:12px;align-items:start}
  .dl main.rg .trank .lv:where(:not(.v16-root *)){min-width:0;margin-top:-1px}
  .dl main.rg .trank .n:where(:not(.v16-root *)){line-height:23px}
}
/* the way on from "Seen in exams": the landing's dark button */
.dl main.rg .seen-go:where(:not(.v16-root *)){margin:28px 0 0;position:relative;z-index:1}
/* sample questions one per row: the question on the left, the options on the right */
.dl main.rg .rg-qs.qwide:where(:not(.v16-root *)){grid-template-columns:minmax(0,1fr);gap:16px}
.dl main.rg .qwide .rg-q:where(:not(.v16-root *)){grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);grid-template-rows:auto 1fr;column-gap:40px;row-gap:10px;padding:32px}
.dl main.rg .qwide .rg-q .tag:where(:not(.v16-root *)){grid-column:1}
.dl main.rg .qwide .rg-q b:where(:not(.v16-root *)){grid-column:1;min-height:0;font-size:17px;line-height:1.55;font-weight:500;letter-spacing:0;color:var(--fg)}
.dl main.rg .qwide .rg-q ol:where(:not(.v16-root *)){grid-column:2;grid-row:1/3;align-self:center}
.dl main.rg .qwide .rg-q li:where(:not(.v16-root *)){padding:12px 16px;line-height:1.5;font-size:15px;font-weight:400;color:var(--fg2)}
.dl main.rg .qwide .rg-q li.ok:where(:not(.v16-root *)){font-weight:500;color:var(--ok)}
/* lighter type for reading (Aryan, 1 Nov 2026: "the bolding and text size make it hard to look at") */
.dl main.rg .qwide .rg-q .tag:where(:not(.v16-root *)){font-size:11px;font-weight:600;letter-spacing:.1em;color:var(--fg3)}
@media (max-width:860px){
  .dl main.rg .qwide .rg-q:where(:not(.v16-root *)){grid-template-columns:minmax(0,1fr);padding:24px}
  .dl main.rg .qwide .rg-q ol:where(:not(.v16-root *)){grid-column:1;grid-row:auto}
}

/* RTR Learn: an exchange or a second card grid stacked under a first one in the same section */
.dl main.rg .rl-stack:where(:not(.v16-root *)){margin-top:16px}
/* a title that wraps keeps the same gap to its line as a one-line title: first line centred on the icon, fixed gap below */
.dl main.rg .rl-pts .p-pt:where(:not(.v16-root *)){row-gap:12px}
.dl main.rg .rl-pts .p-pt b:where(:not(.v16-root *)){align-self:start;min-height:0;padding-top:calc((var(--ctl) - 1lh) / 2)}
/* a card that opens its page: the title is the link, and its press area is the whole card */
.dl main.rg .rl-link:where(:not(.v16-root *)){position:relative;transition:transform 160ms var(--ease-out),box-shadow 160ms var(--ease-out)}
.dl main.rg .rl-link a:where(:not(.v16-root *)){color:inherit;text-decoration:none}
.dl main.rg .rl-link a:where(:not(.v16-root *))::after{content:"";position:absolute;inset:0;border-radius:20px}
.dl main.rg .rl-link a:focus-visible:where(:not(.v16-root *)){outline:none}
.dl main.rg .rl-link:has(a:focus-visible):where(:not(.v16-root *)){box-shadow:var(--card-shadow-sm),0 0 0 3px var(--accent)}
@media (hover:hover) and (pointer:fine){.dl main.rg .rl-link:hover b:where(:not(.v16-root *)){color:var(--accent-text)}}
.dl main.rg .rl-link:active:where(:not(.v16-root *)){transform:scale(.98)}
@media (prefers-reduced-motion:reduce){.dl main.rg .rl-link:active:where(:not(.v16-root *)){transform:none}}

.dl :is(main.rg,.rg-app) .lb:where(:not(.v16-root *)){position:relative;z-index:auto}
.dl :is(main.rg,.rg-app) .lb .wrap:where(:not(.v16-root *)){box-sizing:border-box;width:100%;max-width:calc(1320px + 2*max(20px,5vw))!important;margin:0 auto;padding-left:max(20px,5vw)!important;padding-right:max(20px,5vw)!important}
/* the pick's cascade: every part inherits its weight, a paragraph, list item or span reads regular, and a part's own
   rule sets its weight (the probe's page rules, at the weights they had there) */
.dl :where(:is(main.rg,.rg-app) .lb) *:where(:not(.v16-root *)){font-weight:inherit}
.dl :where(:is(main.rg,.rg-app) .lb) :is(p,li,span):where(:not(.v16-root *)){font-weight:400}
.dl :is(main.rg,.rg-app) .lb .lb-find:where(:not(.v16-root *)){display:flex;align-items:center;gap:12px;width:min(560px,100%);margin:28px auto 0;padding:0 20px;border-radius:999px;background:var(--card);box-shadow:var(--card-shadow),0 0 0 1px var(--line) inset}
.dl :is(main.rg,.rg-app) .lb .lb-find svg:where(:not(.v16-root *)){flex:none;color:var(--fg3)}
.dl :is(main.rg,.rg-app) .lb .lb-find input:where(:not(.v16-root *)){all:unset;flex:1;padding:17px 0;font:400 17px Inter,system-ui,sans-serif;color:var(--fg)}
.dl :is(main.rg,.rg-app) .lb .lb-body:where(:not(.v16-root *)){position:relative;z-index:2;padding-top:24px!important;padding-bottom:120px!important}
/* the route: the parts of a flight on one line, a plane on the open part */
.dl :is(main.rg,.rg-app) .lb .lb-route:where(:not(.v16-root *)){position:relative;margin:0 0 28px;padding:26px 28px 22px;border-radius:24px;background:var(--card);box-shadow:var(--card-shadow);overflow-x:auto;scrollbar-width:none}
.dl :is(main.rg,.rg-app) .lb .lb-route ol:where(:not(.v16-root *)){--lb-n:7;position:relative;display:grid;grid-template-columns:repeat(var(--lb-n),minmax(96px,1fr));min-width:calc(var(--lb-n) * 108px);margin:0;padding:0;list-style:none}
.dl :is(main.rg,.rg-app) .lb .lb-route ol:where(:not(.v16-root *))::before{content:"";position:absolute;left:calc(100% / var(--lb-n) / 2);right:calc(100% / var(--lb-n) / 2);top:21px;height:3px;border-radius:3px;background:repeating-linear-gradient(90deg,rgba(13,27,42,.16) 0 10px,transparent 10px 18px)}
.dl :is(main.rg,.rg-app) .lb .lb-route .lb-done:where(:not(.v16-root *)){position:absolute;left:calc(100% / var(--lb-n) / 2);top:21px;height:3px;border-radius:3px;background:var(--accent);transition:width 360ms cubic-bezier(.23,1,.32,1)}
.dl :is(main.rg,.rg-app) .lb .lb-route a:where(:not(.v16-root *)){all:unset;position:relative;cursor:pointer;display:grid;justify-items:center;gap:10px;text-align:center;padding:0 4px}
.dl :is(main.rg,.rg-app) .lb .lb-route .lb-dot:where(:not(.v16-root *)){position:relative;z-index:1;width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:var(--card);box-shadow:0 0 0 2px rgba(13,27,42,.14) inset;font-size:15px;font-weight:650;color:var(--fg2);transition:transform 200ms cubic-bezier(.23,1,.32,1),background-color 200ms ease}
.dl :is(main.rg,.rg-app) .lb .lb-route a.lb-past .lb-dot:where(:not(.v16-root *)){background:#fff1df;box-shadow:0 0 0 2px rgba(255,143,31,.45) inset;color:var(--accent-text)}
.dl :is(main.rg,.rg-app) .lb .lb-route a[aria-current="true"] .lb-dot:where(:not(.v16-root *)){background:var(--accent);box-shadow:0 10px 24px -8px rgba(255,143,31,.8);color:var(--accent-ink);transform:scale(1.08)}
.dl :is(main.rg,.rg-app) .lb .lb-route .lb-dot svg:where(:not(.v16-root *)){display:none}
.dl :is(main.rg,.rg-app) .lb .lb-route a[aria-current="true"] .lb-dot span:where(:not(.v16-root *)){display:none}.dl :is(main.rg,.rg-app) .lb .lb-route a[aria-current="true"] .lb-dot svg:where(:not(.v16-root *)){display:block}
.dl :is(main.rg,.rg-app) .lb .lb-route b:where(:not(.v16-root *)){font-size:15px;font-weight:650;color:var(--fg2);line-height:1.2}
.dl :is(main.rg,.rg-app) .lb .lb-route small:where(:not(.v16-root *)){font-size:12.5px;color:var(--fg3)}
.dl :is(main.rg,.rg-app) .lb .lb-route a[aria-current="true"] b:where(:not(.v16-root *)){color:var(--fg)}
@media (hover:hover){.dl :is(main.rg,.rg-app) .lb .lb-route a:hover .lb-dot:where(:not(.v16-root *)){transform:scale(1.06)}}
.dl :is(main.rg,.rg-app) .lb .lb-grid:where(:not(.v16-root *)){display:grid;grid-template-columns:360px minmax(0,1fr);gap:24px;align-items:start}
.dl :is(main.rg,.rg-app) .lb .lb-list:where(:not(.v16-root *)){position:sticky;top:84px;max-height:calc(100vh - 104px);overflow:auto;padding:22px 14px 18px;border-radius:24px;background:var(--card);box-shadow:var(--card-shadow-sm);scrollbar-width:thin}
.dl :is(main.rg,.rg-app) .lb .lb-lh:where(:not(.v16-root *)){display:grid;gap:4px;padding:0 10px 14px;margin-bottom:6px;border-bottom:1px solid var(--line)}
.dl :is(main.rg,.rg-app) .lb .lb-lh .lb-k:where(:not(.v16-root *)){font-size:12px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-text)}
.dl :is(main.rg,.rg-app) .lb .lb-lh h2:where(:not(.v16-root *)){margin:0;font-size:26px;line-height:1.15;font-weight:650;letter-spacing:-.02em;color:var(--fg)}
.dl :is(main.rg,.rg-app) .lb .lb-lh p:where(:not(.v16-root *)){margin:0;font-size:14.5px;line-height:1.5;font-weight:400;color:var(--fg2)}
.dl :is(main.rg,.rg-app) .lb .lb-grp:where(:not(.v16-root *)){margin:16px 10px 8px;display:flex;justify-content:space-between;font-size:12px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--fg3)}
.dl :is(main.rg,.rg-app) .lb .lb-it:where(:not(.v16-root *)){all:unset;box-sizing:border-box;display:grid;grid-template-columns:30px minmax(0,1fr);gap:12px;align-items:start;width:100%;padding:9px 10px;border-radius:12px;cursor:pointer;font-size:15px;line-height:1.4;font-weight:450;color:var(--fg)}
.dl :is(main.rg,.rg-app) .lb .lb-it .lb-n:where(:not(.v16-root *)){display:grid;place-items:center;width:30px;height:30px;margin-top:-4px;border-radius:50%;font-size:12.5px;font-weight:650;font-variant-numeric:tabular-nums}
.dl :is(main.rg,.rg-app) .lb .lb-it.lb-ph .lb-n:where(:not(.v16-root *)){background:#e7efff;color:#2457b8}.dl :is(main.rg,.rg-app) .lb .lb-it.lb-cl .lb-n:where(:not(.v16-root *)){background:#e3f6ee;color:#0b7a50}
@media (hover:hover){.dl :is(main.rg,.rg-app) .lb .lb-it:hover:where(:not(.v16-root *)){background:var(--sunk)}}
.dl :is(main.rg,.rg-app) .lb .lb-it[aria-current="true"]:where(:not(.v16-root *)){background:#fff1df;font-weight:600}
.dl :is(main.rg,.rg-app) .lb .lb-it[aria-current="true"] .lb-n:where(:not(.v16-root *)){background:var(--accent);color:var(--accent-ink)}
.dl :is(main.rg,.rg-app) .lb .lb-empty:where(:not(.v16-root *)){padding:16px 10px;font-size:14.5px;color:var(--fg3)}
.dl :is(main.rg,.rg-app) .lb .lb-read:where(:not(.v16-root *)){display:grid;gap:26px;padding:34px 40px 36px;border-radius:28px;background:var(--card);box-shadow:var(--card-shadow);min-width:0}
.dl :is(main.rg,.rg-app) .lb .lb-kick:where(:not(.v16-root *)){display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13.5px;font-weight:500;color:var(--fg3)}
.dl :is(main.rg,.rg-app) .lb .lb-tag:where(:not(.v16-root *)){padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:600}
.dl :is(main.rg,.rg-app) .lb .lb-tag.lb-ph:where(:not(.v16-root *)){background:#e7efff;color:#2457b8}.dl :is(main.rg,.rg-app) .lb .lb-tag.lb-cl:where(:not(.v16-root *)){background:#e3f6ee;color:#0b7a50}
.dl :is(main.rg,.rg-app) .lb .lb-read h3:where(:not(.v16-root *)){margin:0;font-size:clamp(30px,2.8vw,42px);line-height:1.08;font-weight:650;letter-spacing:-.028em;color:var(--fg)}
.dl :is(main.rg,.rg-app) .lb .lb-when:where(:not(.v16-root *)){margin:0;max-width:66ch;font-size:17.5px;line-height:1.65;font-weight:400;color:var(--fg2)}
.dl :is(main.rg,.rg-app) .lb .lb-lab:where(:not(.v16-root *)){display:block;margin-bottom:10px;font-size:12px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--fg3)}
.dl :is(main.rg,.rg-app) .lb .lb-pats:where(:not(.v16-root *)){display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.dl :is(main.rg,.rg-app) .lb .lb-pat:where(:not(.v16-root *)){padding:18px 20px;border-radius:18px;background:#fff;box-shadow:0 0 0 1px var(--line) inset,0 12px 26px -22px rgba(13,27,42,.4)}
.dl :is(main.rg,.rg-app) .lb .lb-pat.lb-you:where(:not(.v16-root *)){box-shadow:0 0 0 1px var(--line) inset,inset 4px 0 0 var(--accent),0 12px 26px -22px rgba(13,27,42,.4)}
.dl :is(main.rg,.rg-app) .lb .lb-pat.lb-atc:where(:not(.v16-root *)){box-shadow:0 0 0 1px var(--line) inset,inset 4px 0 0 #2f6fde,0 12px 26px -22px rgba(13,27,42,.4)}
.dl :is(main.rg,.rg-app) .lb .lb-pat .lb-lab:where(:not(.v16-root *)){margin-bottom:6px}.dl :is(main.rg,.rg-app) .lb .lb-pat.lb-you .lb-lab:where(:not(.v16-root *)){color:var(--accent-text)}.dl :is(main.rg,.rg-app) .lb .lb-pat.lb-atc .lb-lab:where(:not(.v16-root *)){color:#2457b8}
.dl :is(main.rg,.rg-app) .lb .lb-pat p:where(:not(.v16-root *)){margin:0;font-size:17px;line-height:1.85;font-weight:500;color:var(--fg)}
.dl :is(main.rg,.rg-app) .lb .lb-slot:where(:not(.v16-root *)){display:inline-block;padding:0 9px;border-radius:999px;line-height:1.65;font-size:13.5px;font-weight:500;color:var(--fg2);background:var(--sunk);vertical-align:1px}
.dl :is(main.rg,.rg-app) .lb .lb-chatcard:where(:not(.v16-root *)){padding:18px;border-radius:24px;background:var(--sunk)}
.dl :is(main.rg,.rg-app) .lb .lb-chat:where(:not(.v16-root *)){list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.dl :is(main.rg,.rg-app) .lb .lb-chat li:where(:not(.v16-root *)){display:flex;flex-direction:column;gap:4px;max-width:min(80%,600px)}
.dl :is(main.rg,.rg-app) .lb .lb-chat li.lb-atc:where(:not(.v16-root *)){align-self:flex-start}.dl :is(main.rg,.rg-app) .lb .lb-chat li.lb-you:where(:not(.v16-root *)){align-self:flex-end;align-items:flex-end}
.dl :is(main.rg,.rg-app) .lb .lb-chat .lb-w:where(:not(.v16-root *)){padding:0 2px;font-size:11px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--fg3)}
.dl :is(main.rg,.rg-app) .lb .lb-chat .lb-you .lb-w:where(:not(.v16-root *)){color:var(--fg)}
.dl :is(main.rg,.rg-app) .lb .lb-chat p:where(:not(.v16-root *)){margin:0;padding:11px 15px;border-radius:18px;font-size:15.5px;line-height:1.5;font-weight:400;color:var(--fg);background:#fff;box-shadow:0 1px 2px rgba(13,27,42,.08)}
.dl :is(main.rg,.rg-app) .lb .lb-chat .lb-atc p:where(:not(.v16-root *)){border-top-left-radius:4px}.dl :is(main.rg,.rg-app) .lb .lb-chat .lb-you p:where(:not(.v16-root *)){border-top-right-radius:4px;background:#0d1b2a;color:#fff;box-shadow:0 8px 18px -12px rgba(13,27,42,.7)}
/* a reference card's table (REA-194), in the book's own type: the abbreviations, the FIR letters, an FIR's codes */
.dl :is(main.rg,.rg-app) .lb .lb-tablewrap:where(:not(.v16-root *)){overflow-x:auto;border-radius:18px;background:#fff;box-shadow:0 0 0 1px var(--line) inset}
.dl :is(main.rg,.rg-app) .lb .lb-table:where(:not(.v16-root *)){width:100%;border-collapse:collapse;font-size:15px;line-height:1.45}
.dl :is(main.rg,.rg-app) .lb .lb-table :is(th,td):where(:not(.v16-root *)){padding:10px 14px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
.dl :is(main.rg,.rg-app) .lb .lb-table thead th:where(:not(.v16-root *)){font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--fg3)}
.dl :is(main.rg,.rg-app) .lb .lb-table tbody th:where(:not(.v16-root *)){font-weight:600;color:var(--fg);white-space:nowrap}
.dl :is(main.rg,.rg-app) .lb .lb-table td:where(:not(.v16-root *)){font-weight:400;color:var(--fg2)}
.dl :is(main.rg,.rg-app) .lb .lb-table tbody tr:last-child :is(th,td):where(:not(.v16-root *)){border-bottom:0}
.dl :is(main.rg,.rg-app) .lb .lb-notes:where(:not(.v16-root *)){list-style:none;margin:0;padding:0;display:grid;gap:12px}
.dl :is(main.rg,.rg-app) .lb .lb-notes li:where(:not(.v16-root *)){display:grid;grid-template-columns:26px minmax(0,1fr);gap:12px;font-size:16px;line-height:1.6;font-weight:400;color:var(--fg2)}
.dl :is(main.rg,.rg-app) .lb .lb-notes i:where(:not(.v16-root *)){display:grid;place-items:center;width:26px;height:26px;border-radius:50%;background:rgba(0,188,125,.13);color:#007a52;font-style:normal;font-size:13px;font-weight:700}
.dl :is(main.rg,.rg-app) .lb .lb-pn:where(:not(.v16-root *)){display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;padding-top:6px;border-top:1px solid var(--line)}
.dl :is(main.rg,.rg-app) .lb .lb-pn a:where(:not(.v16-root *)){all:unset;box-sizing:border-box;cursor:pointer;display:grid;gap:3px;margin-top:16px;padding:16px 18px;border-radius:16px;background:var(--sunk);font-size:15px;font-weight:600;color:var(--fg);transition:transform 160ms cubic-bezier(.23,1,.32,1)}
.dl :is(main.rg,.rg-app) .lb .lb-pn a:active:where(:not(.v16-root *)){transform:scale(.98)}
.dl :is(main.rg,.rg-app) .lb .lb-pn small:where(:not(.v16-root *)){font-size:12px;font-weight:500;color:var(--fg3)}
.dl :is(main.rg,.rg-app) .lb .lb-pn .lb-next:where(:not(.v16-root *)){grid-column:2;text-align:right}
.dl :is(main.rg,.rg-app) .lb .lb-say:where(:not(.v16-root *)){display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;padding:18px 22px;border-radius:20px;background:#fff1df}
.dl :is(main.rg,.rg-app) .lb .lb-say p:where(:not(.v16-root *)){margin:0;font-size:15.5px;font-weight:500;color:var(--fg)}
.dl :is(main.rg,.rg-app) .lb .lb-mob:where(:not(.v16-root *)){display:none}
@media (max-width:900px){
  .dl :is(main.rg,.rg-app) .lb .lb-grid:where(:not(.v16-root *)){grid-template-columns:minmax(0,1fr)}
  .dl :is(main.rg,.rg-app) .lb .lb-list:where(:not(.v16-root *)){display:none}
  .dl :is(main.rg,.rg-app) .lb .lb-route:where(:not(.v16-root *)){margin:0 calc(-1*max(20px,5vw)) 16px;border-radius:0;padding:20px max(20px,5vw) 16px}
  .dl :is(main.rg,.rg-app) .lb .lb-mob:where(:not(.v16-root *)){display:block;position:sticky;top:60px;z-index:4;margin-bottom:14px}
  .dl :is(main.rg,.rg-app) .lb .lb-mob select:where(:not(.v16-root *)){appearance:none;-webkit-appearance:none;box-sizing:border-box;width:100%;height:52px!important;padding:0 44px 0 16px!important;border:0;border-radius:16px;background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2356626e' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") no-repeat right 16px center;box-shadow:var(--card-shadow-sm);font:500 15.5px Inter,system-ui,sans-serif;color:var(--fg)}
  .dl :is(main.rg,.rg-app) .lb .lb-read:where(:not(.v16-root *)){padding:24px 20px 26px;border-radius:24px}
  .dl :is(main.rg,.rg-app) .lb .lb-pats:where(:not(.v16-root *)){grid-template-columns:minmax(0,1fr)}.dl :is(main.rg,.rg-app) .lb .lb-chat li:where(:not(.v16-root *)){max-width:88%}
}
/* added in the port: the "Learn" of the hero's display as the pick set it still; the reader's head; a scenario's own
   heading between turns, centred; a focus ring for the links the pick drew as buttons */
.dl :is(main.rg,.rg-app) .lb .lb-word:where(:not(.v16-root *)){position:static;opacity:1;transform:none}
.dl :is(main.rg,.rg-app) .lb .lb-top:where(:not(.v16-root *)){display:grid;gap:14px}
.dl :is(main.rg,.rg-app) .lb .lb-read h3:focus:where(:not(.v16-root *)){outline:none}
/* another aircraft, air to air (REA-178): a left bubble like ATC's, in a light blue-grey, its callsign the small label */
.dl :is(main.rg,.rg-app) .lb .lb-chat li.lb-air:where(:not(.v16-root *)){align-self:flex-start}
.dl :is(main.rg,.rg-app) .lb .lb-chat .lb-air .lb-w:where(:not(.v16-root *)){color:#46607d;letter-spacing:.04em}
.dl :is(main.rg,.rg-app) .lb .lb-chat .lb-air p:where(:not(.v16-root *)){border-top-left-radius:4px;background:#e4ebf3;box-shadow:0 0 0 1px rgba(70,96,125,.14) inset}
.dl :is(main.rg,.rg-app) .lb .lb-chat li.lb-sec:where(:not(.v16-root *)){align-self:center;max-width:none;padding:6px 0 0;font-size:11px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--fg3);text-align:center}
.dl :is(main.rg,.rg-app) .lb .lb-route a:focus-visible .lb-dot:where(:not(.v16-root *)),.dl :is(main.rg,.rg-app) .lb .lb-it:focus-visible:where(:not(.v16-root *)),.dl :is(main.rg,.rg-app) .lb .lb-pn a:focus-visible:where(:not(.v16-root *)){outline:2px solid var(--accent);outline-offset:2px}
@media (prefers-reduced-motion:reduce){.dl :is(main.rg,.rg-app) .lb .lb-route .lb-done:where(:not(.v16-root *)),.dl :is(main.rg,.rg-app) .lb .lb-route .lb-dot:where(:not(.v16-root *)),.dl :is(main.rg,.rg-app) .lb .lb-pn a:where(:not(.v16-root *)){transition:none}.dl :is(main.rg,.rg-app) .lb .lb-pn a:active:where(:not(.v16-root *)){transform:none}}