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@font-face{font-family:Newsreader;src:url('/assets/newsreader-italic.ttf') format('truetype');font-style:italic;font-weight:400;font-display:swap}
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@media(max-width:1100px){.desktop-nav{gap:18px}.site-header{gap:20px;padding-inline:4%}.wordmark{font-size:19px}.flightbook-trigger{font-size:12px;padding-left:16px}.section{padding:65px 5%}.hangar-section,.play-section,footer{padding-inline:5%}.hero-content{left:6%;top:16%}.hero h1{font-size:85px}.hero-links{gap:22px}.brief-layout{gap:5%;grid-template-columns:1fr 1.05fr}.featured-brief{min-height:400px}.return-strip{align-items:start}.return-strip>div{flex-direction:column;gap:5px}.filmstrip>button,.filmstrip>a{padding:18px 13px;gap:12px}.filmstrip img{width:65px;height:48px}.filmstrip strong{font-size:14px}.cockpit-explorer{grid-template-columns:1.2fr 1fr;gap:25px}.instrument-tabs button{font-size:11px}.journal-section{padding-top:0}.workbench{gap:35px}.about-section{grid-template-columns:.6fr 1.5fr}.hero-bottom{font-size:9px}.hero-bottom>span{gap:8px}.credit-link{font-size:9px}}
@media(max-width:800px){html{scroll-padding-top:15px}.site-header{height:74px;padding-inline:6%}.desktop-nav{display:none}.mobile-menu{display:flex;gap:16px;align-items:center;font-size:13px;padding:5px 0 5px 15px;border-left:1px solid var(--line)}.mobile-menu span{font-size:23px;font-weight:300}.flightbook-trigger{padding:0;border:0;font-size:12px}.header-actions{gap:16px}.hero{height:740px;min-height:600px;max-height:calc(100svh - 74px)}.hero-content{top:16%;left:6%;right:6%}.hero h1{font-size:clamp(63px,10vw,82px)}.hero-wash{background:linear-gradient(90deg,#061527b8,#06152710),linear-gradient(0deg,#061527a6,transparent 45%)}.hero-image{object-position:57% 60%}.hero-bottom{left:6%;right:6%;flex-direction:column;gap:6px;bottom:22px;font-size:10px}.hero-bottom>span{flex-wrap:wrap}.hero-content>.eyebrow{font-size:10px;max-width:85%;margin-bottom:23px}.hero-intro{font-size:16px}.hero-links{flex-direction:column;align-items:start;gap:14px;margin-top:27px}.hero-links .text-link{font-size:13px}.motion-control{right:6%;top:18px;font-size:10px}.intro-strip{padding:20px 6%;align-items:center}.intro-strip p{font-size:13px;max-width:235px}.intro-strip a{font-size:12px}.section{padding:55px 6%}.section-top{margin-bottom:30px}.section-top .meta{font-size:10px}.eyebrow{font-size:11px}.brief-layout{grid-template-columns:1fr;gap:35px}.brief-copy>p{font-size:16px}.brief-copy .dark-button{margin-top:0}.brief-copy h2{font-size:53px}.level-switch{margin:22px 0}.featured-brief{min-height:370px}.brief-card-bottom strong{font-size:40px}.return-strip{margin-top:30px;gap:20px}.return-strip p{max-width:250px;font-size:12px}.return-strip p strong{font-size:13px}.return-strip .text-link{font-size:11px;white-space:normal}.hangar-section{padding:45px 6% 30px}.hangar-heading{align-items:start;gap:25px}.hangar-heading h2{font-size:48px}.hangar-heading p{font-size:13px;max-width:195px;padding-top:5px}.aircraft-stage{min-height:450px;aspect-ratio:1.3}.aircraft-stage>img{object-position:59% 50%}.aircraft-caption{left:23px;bottom:35px;max-width:320px}.aircraft-caption h3{font-size:43px}.aircraft-caption p:not(.eyebrow){font-size:13px;max-width:285px}.type-caption{font-size:8px}.filmstrip{grid-template-columns:1fr 1fr}.filmstrip>a{grid-column:1/-1;border-top:1px solid #ffffff25;justify-content:space-between}.filmstrip img{width:55px;height:43px}.filmstrip>button{padding:20px 8px;gap:10px}.filmstrip>button:nth-child(2){border-right:0;padding-left:15px}.film-arrow{display:none}.filmstrip small{font-size:9px}.filmstrip strong{font-size:14px}.cockpit-heading{display:block;margin-bottom:28px}.cockpit-heading h2{font-size:48px}.cockpit-heading p{max-width:none;margin-top:20px;font-size:15px}.cockpit-explorer{grid-template-columns:1fr;gap:20px}.instrument-tabs button{font-size:12px;padding:8px 12px}.hotspot{width:29px;height:29px}.journal-section{padding-top:15px}.journal-heading h2{font-size:45px}.story-grid{gap:25px}.story h3{font-size:29px}.story-image,.story-wide .story-image{aspect-ratio:1.05}.story-tag{font-size:8px;padding:5px 7px;left:10px;bottom:10px}.story-meta{font-size:9px}.story p{font-size:12px}.workbench{grid-template-columns:1fr;gap:25px;margin-top:45px;padding-top:30px}.workbench h3{font-size:33px}.project-list strong{font-size:15px}.project-list small{font-size:12px}.play-section{padding:45px 6%;gap:25px}.play-section h2{font-size:45px}.play-section p:not(.eyebrow){font-size:13px}.play-cta{width:165px;height:165px}.play-arrow{font-size:60px}.play-cta>span:first-child{font-size:9px}.play-cta small{font-size:8px}.about-section{grid-template-columns:1fr;gap:20px}.about-monogram{display:none}.about-copy>p{font-size:16px}.about-copy h2{font-size:49px}footer{padding:35px 6%}.footer-top{flex-wrap:wrap}.footer-top p{font-size:13px}.footer-top>a:last-child{font-size:10px}.footer-bottom{gap:15px;font-size:9px}.footer-bottom>div{gap:15px;flex-wrap:wrap}.footer-bottom button{font-size:10px}.education-note{font-size:10px}dialog{width:calc(100% - 22px);max-height:94svh}.modal-body{padding:45px 6% 30px}.modal-body h2{font-size:39px}.modal-body p{font-size:15px}.archive-list{gap:0 18px}.archive-item{gap:12px}.archive-item strong{font-size:13px}.archive-number{font-size:26px}.lesson-visual{height:175px}.lesson-option{font-size:14px;padding:13px}.lesson-actions{gap:15px}.lesson-actions .meta{font-size:10px}.lesson-actions .button{font-size:13px;padding:12px 16px;gap:20px}.article-facts{gap:18px}.article-facts strong{font-size:29px}.article-facts small{font-size:11px}}
@media(max-width:480px){.wordmark{font-size:17px;gap:4px}.wordmark i{font-size:26px;margin-left:3px}.flightbook-trigger{font-size:0;gap:0}.flightbook-trigger span{font-size:12px}.hero{height:710px;min-height:605px}.hero-content{top:15%}.hero h1{font-size:64px}.hero-image{object-position:57% 58%}.hero-intro{font-size:15px}.hero-content>.eyebrow{letter-spacing:.105em;font-size:10px}.hero-bottom{font-size:8px}.intro-strip{gap:15px}.intro-strip p{max-width:190px;font-size:12px}.intro-strip a{font-size:11px}.section-top>.meta{display:none}.brief-copy h2{font-size:47px}.featured-brief{min-height:335px}.brief-card-bottom{left:22px;right:22px;bottom:23px}.brief-card-bottom strong{font-size:35px}.brief-card-top{left:22px;right:22px;font-size:10px}.round-arrow{width:37px;height:37px;font-size:21px}.return-strip{flex-direction:column;gap:12px}.return-strip>div{flex-direction:row;gap:22px}.return-strip p{max-width:none}.hangar-heading{display:block}.hangar-heading h2{font-size:46px}.hangar-heading p{max-width:none;margin-top:19px;font-size:14px}.aircraft-stage{min-height:430px}.aircraft-caption h3{font-size:41px}.aircraft-caption{left:20px;right:20px}.aircraft-caption p:not(.eyebrow){font-size:12px;max-width:250px}.aircraft-shade{background:linear-gradient(0deg,#041424eb,transparent 85%)}.filmstrip img{width:47px;height:41px}.filmstrip small{font-size:8px;letter-spacing:.04em}.filmstrip strong{font-size:12px}.filmstrip>button:nth-child(2){padding-left:10px}.cockpit-heading h2{font-size:44px}.hotspot{width:25px;height:25px;font-size:10px;box-shadow:0 0 0 3px #10223066}.instrument-tabs{gap:5px}.instrument-tabs button{font-size:11px;padding:7px 9px}.photo-caption{font-size:8px}.story-grid{grid-template-columns:1fr;gap:35px}.story-image,.story-wide .story-image{aspect-ratio:1.45}.story h3{font-size:35px}.story p{font-size:14px}.story-meta{font-size:10px}.story-tag{font-size:9px}.journal-heading h2{font-size:43px}.play-section{display:block}.play-section h2{font-size:48px}.play-cta{margin-top:28px;flex-direction:row;justify-content:space-between;border-radius:0;width:100%;height:68px;padding:0 22px}.play-cta>span:first-child{font-size:12px}.play-arrow{font-size:35px}.play-cta small{display:none}.footer-top{gap:22px}.footer-top>a:last-child{width:100%}.footer-bottom{flex-direction:column;gap:12px}.footer-bottom>div{gap:20px}.archive-list{grid-template-columns:1fr}.modal-body h2{font-size:35px}.lesson-topline{font-size:10px}.lesson-actions{flex-wrap:wrap}.lesson-options{gap:8px}.lesson-context{font-size:16px!important}.lesson-option{font-size:13px}.book-stats{gap:25px}.book-stats strong{font-size:35px}.book-stats small{font-size:11px}.completion-stats{gap:25px}.article-facts{grid-template-columns:1fr;gap:14px}.article-facts>div{display:flex;align-items:center;gap:16px}.article-facts strong{min-width:70px}.article-facts small{font-size:12px}.book-row{gap:12px}.book-row strong{font-size:13px}.book-row small{font-size:10px}.book-row button{font-size:12px}.article-hero{max-height:230px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.reveal{opacity:1;transform:none}.motion-control{display:none}}
/* Editorial refinements and the door-to-door comparison. */
.time-section{background:#edf1f3}.time-heading{display:grid;grid-template-columns:1.35fr 1fr;gap:12%;align-items:center;margin-bottom:42px}.time-heading>div>p{max-width:580px;color:var(--muted);margin:24px 0 15px}.time-pullquote{font-family:var(--serif);font-size:32px;line-height:1.3;padding-left:35px;border-left:2px solid var(--red)}.time-pullquote em{color:#607789}.time-calculator{display:grid;grid-template-columns:1fr 1fr;background:#fff}.time-inputs{padding:36px}.time-inputs h3{font-family:var(--serif);font-size:35px;margin:15px 0 25px;line-height:1.1}.time-fields{display:grid;grid-template-columns:1fr 1fr;gap:23px}.time-fields label{display:flex;flex-direction:column;justify-content:space-between;font-size:12px;line-height:1.5;gap:10px;color:#4d626f}.time-fields label>span{display:flex;align-items:center;border-bottom:1px solid #8fa0ab;padding-bottom:8px}.time-fields input{min-width:0;width:100%;background:transparent;border:0;font-size:27px;color:var(--ink);padding:0;font-family:var(--sans);font-weight:400}.time-fields input:invalid{outline:2px solid var(--red)}.time-fields small{font-size:10px;letter-spacing:.07em;white-space:nowrap}.time-inputs>.text-link{font-size:12px;margin-top:28px}.time-output{background:#142533;color:white;padding:36px;display:flex;flex-direction:column}.time-output>.eyebrow{color:#bdd0de}.time-output h3{font-family:var(--serif);font-size:47px;line-height:1.06;letter-spacing:-.02em;margin:24px 0 12px;max-width:390px}.time-output>p:not(.eyebrow){font-size:12px;color:#c0ced8}.time-bars{display:grid;gap:22px;margin:30px 0}.time-bars p{display:flex;justify-content:space-between;gap:20px;font-size:13px;margin-bottom:9px}.time-bars strong{font-weight:500}.bar-track{height:6px;background:#ffffff20}.bar-track i{display:block;height:100%;background:#c4dbe9;transition:width .3s}.time-bars>div:last-child i{background:#8f9ea8}.time-output>.time-meaning{margin-top:auto;max-width:330px;line-height:1.8}.time-assumptions{border-bottom:1px solid #c8d2d8;font-size:13px;margin-top:15px}.time-assumptions summary{cursor:pointer;padding:15px 0;color:#4d626f}.time-assumptions>div{padding:0 0 20px;max-width:850px}.time-assumptions p{margin:10px 0;color:var(--muted)}
.instrument-tabs button span{margin-right:5px;font-size:10px;opacity:.65}.instrument-question>strong{font-size:14px;line-height:1.6;display:block}.instrument-question>div{display:flex;gap:8px;margin-top:12px}.instrument-question button{padding:9px 15px;font-size:13px;border:1px solid #a2b1bb;background:#fff}.instrument-question button:hover:not(:disabled){background:#e1eaf0}.instrument-question button[aria-pressed=true]{background:var(--navy);color:white}#instrument-feedback{margin-top:12px}.instrument-source{font-size:11px;color:#46657c;border-bottom:1px solid #b2c0ca;padding-bottom:3px}.lesson-progress{height:3px;background:var(--line);margin-bottom:25px}.lesson-progress i{display:block;height:3px;background:var(--red)}.lesson-context{margin-bottom:25px!important}.lesson-complete{padding:50px 7%}.completion-stats{align-items:center}.completion-stats>span{font-size:12px;color:var(--muted)}.completion-stats strong{font-size:64px;white-space:nowrap}.completion-stats small{font-size:28px}.feedback details{margin-top:15px}.feedback summary{cursor:pointer;font-size:13px;font-weight:600}.small-note,.modal-body .small-note{font-size:12px;line-height:1.8;margin-top:20px;color:var(--muted)}.lesson-topline .mono,.archive-item .mono{padding:0;margin:0;background:none;font-family:var(--sans);font-size:12px}.archive-item>.mono{min-width:23px;color:#748996}.archive-item>span:last-child{margin-left:auto}.book-stats span{font-size:10px;letter-spacing:.06em;color:var(--muted)}.article-hero{max-height:none;overflow:hidden}.article-hero img{height:365px;object-fit:cover;object-position:center 60%}.article-body{max-width:800px}.article-body .article-byline{font-size:10px;letter-spacing:.06em;color:var(--muted);margin-bottom:25px}.article-body .article-lede{font-family:var(--serif);font-size:26px;line-height:1.5;color:var(--ink)}.article-body figure{margin:30px 0}.article-body figcaption{margin-top:10px;font-size:11px;line-height:1.8;color:var(--muted)}.archive-film{max-width:530px}.archive-film video{width:100%;height:auto;display:block;background:#101c29}.article-quiz .dark-button{padding:14px 20px;border:0;margin-top:18px}.article-quiz .dark-button:hover{background:#294357}.credit-list{margin:25px 0}.credit-list>div{padding:10px 0 23px;border-bottom:1px solid var(--line)}.credit-list h3{font-size:23px}.credit-list p,.credit-list a{font-size:13px}.share-input{width:100%;padding:12px;border:1px solid var(--line);font-size:14px;margin-top:20px}h2[tabindex]:focus{outline:none}
@media(max-width:1100px){.time-heading{gap:6%}.time-inputs,.time-output{padding:30px}.time-output h3{font-size:43px}.time-fields{gap:20px 16px}.desktop-nav{gap:20px}.desktop-nav a{font-size:12px}}
@media(max-width:800px){.time-heading{grid-template-columns:1fr}.time-pullquote{display:none}.time-heading h2{font-size:48px}.time-heading>div>p{font-size:15px}.time-calculator{grid-template-columns:1fr}.time-inputs,.time-output{padding:28px}.time-fields label{font-size:13px}.time-output h3{max-width:none;font-size:43px}.time-output>.time-meaning{max-width:none}.time-output{min-height:380px}.article-hero img{height:270px}.article-body .article-lede{font-size:23px}.lesson-complete{padding:45px 6% 30px}.time-assumptions{font-size:12px}.photo-caption{font-size:10px}.type-caption{font-size:10px}.hotspot{min-width:28px;min-height:28px}.credit-link{font-size:10px}}
@media(max-width:480px){.time-heading h2{font-size:46px}.time-inputs,.time-output{padding:25px}.time-fields{gap:23px 20px}.time-fields label{font-size:11px}.time-fields input{font-size:25px}.time-output h3{font-size:43px}.time-inputs h3{font-size:32px}.article-hero img{height:230px}.article-body .article-lede{font-size:22px}.completion-stats strong{font-size:48px}.completion-stats>span{font-size:11px}.type-caption{font-size:9px}.hero-bottom{font-size:9px}}
.featured-brief>img{inset:0}.aircraft-stage{width:100%}
@media(max-width:800px){.aircraft-stage{aspect-ratio:auto;height:450px}}
@media(max-width:480px){.aircraft-stage{height:430px}}

/* Aviation-first editorial edition. */
.challenge-intro{font-size:14px;color:var(--muted);margin-top:18px}.challenge-list button{display:flex;justify-content:space-between;gap:30px;padding:20px 0;border-bottom:1px solid var(--line);text-align:left;width:100%}.challenge-list button:first-child{padding-top:0}.challenge-list button>span:last-child{font-size:24px;color:var(--red)}.challenge-list button:hover strong{color:var(--red)}.editor-note{padding:42px 7%;display:grid;grid-template-columns:150px 1fr;gap:15px 35px;border-top:1px solid var(--line);background:#fff}.editor-note>p:not(.eyebrow){font-size:14px;color:var(--muted);max-width:740px}.editor-note>.text-link{grid-column:2;font-size:12px}.hero-links>.text-link{color:#fff}.hero-intro{max-width:550px}
@media(max-width:800px){.editor-note{padding:32px 6%;grid-template-columns:1fr;gap:15px}.editor-note>.text-link{grid-column:1}.hero-links>.button{gap:20px}.challenge-list button{gap:20px}}