.reading-intro{padding:75px 5% 65px;max-width:1500px;margin:auto}.reading-intro h1{font-size:clamp(50px,7vw,104px);line-height:1.02;letter-spacing:-.055em;font-weight:480;max-width:1000px;margin:25px 0}.reading-intro>p{font-size:20px;line-height:1.7;color:#a0afbd;max-width:650px}.reading-section{margin:0 5%;padding:45px 0 70px;border-top:1px solid #ffffff19}.reading-card h3{font-size:clamp(26px,3vw,40px);line-height:1.1}.reading-card .micro-heading{margin:25px 0 15px;font-size:10px}.reading-card .card-link{font-size:12px}.reading-next{display:flex;justify-content:space-between;gap:30px;align-items:center}.reading-next h2{margin:24px 0}.reading-next p{color:#a0afbd}.article-intro{padding-bottom:50px}.article-intro>.micro-heading{margin-top:30px}.article-byline{margin-top:30px;color:#a0afbd;font-size:14px}.article-layout{margin:0 5% 80px;display:grid;grid-template-columns:240px minmax(0,760px);gap:80px;justify-content:space-between;border-top:1px solid #ffffff19;padding-top:45px}.article-contents{position:sticky;top:30px;align-self:start;display:flex;flex-direction:column;gap:18px}.article-contents a{font-size:14px;color:#b6c7d5}.article-body section{margin-bottom:48px;scroll-margin-top:30px}.article-body h2{font-size:36px;margin-bottom:24px;line-height:1.12}.article-body p{font-size:18px;line-height:1.85;color:#b6c3d0;margin:20px 0}.article-body a{text-decoration:underline;text-underline-offset:4px;color:#a7d6f8}.article-callout{padding:30px;background:#15212c;clip-path:polygon(20px 0,calc(100% - 20px) 0,100% 20px,100% calc(100% - 20px),calc(100% - 20px) 100%,20px 100%,0 calc(100% - 20px),0 20px);margin:35px 0}.article-callout h3{font-size:24px}.article-callout ul{padding-left:20px;color:#bccbd8;line-height:1.8}.article-callout li+li{margin-top:10px}@media(max-width:900px){.article-layout{grid-template-columns:1fr;gap:40px}.article-contents{position:static}.reading-next{display:block}.reading-next .cut-button{margin-top:28px}}@media(max-width:700px){.reading-intro{padding-top:40px}.reading-intro h1{font-size:48px}.reading-intro>p{font-size:17px}.article-body h2{font-size:30px}.article-body p{font-size:17px}.reading-section{padding-top:30px}}

.article-feature{display:block}.article-feature h2{max-width:850px;margin:30px 0 20px}.article-feature>p{max-width:680px}.article-feature .card-link{display:flex;justify-content:space-between;gap:20px}.reading-section .oct-cards{grid-template-columns:repeat(2,minmax(0,1fr))}@media(max-width:700px){.reading-section .oct-cards{grid-template-columns:1fr}.article-feature h2{font-size:34px}.article-feature .card-link{flex-wrap:wrap}}
.library-heading{display:flex;justify-content:space-between;align-items:baseline;gap:25px;margin-bottom:35px}.library-heading p,.library-status{color:#9eafbe;font-size:13px}.library-tools{display:grid;grid-template-columns:1fr 260px auto;gap:20px;align-items:end;padding-bottom:25px}.library-tools label{font-size:13px;color:#b6c7d5;display:flex;flex-direction:column;gap:10px}.library-tools input,.library-tools select{width:100%;min-height:48px;padding:12px 14px;background:#111b24;color:#edf3f8;border:1px solid #3a4b5b;border-radius:0;font:16px Instrument,Arial,sans-serif}.library-tools button,.library-pagination button{cursor:pointer;min-height:48px;padding:10px 18px;border:1px solid #3a4b5b;background:#192632;color:#e6f0f7;font:14px Instrument,Arial,sans-serif}.library-status{margin-bottom:24px;scroll-margin-top:24px}.article-library-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.library-card{padding:28px;display:flex;flex-direction:column;min-width:0}.library-card .card-top{margin-bottom:26px;gap:16px}.library-card .micro-heading{font-size:10px}.library-card h3{font-size:30px;line-height:1.12;margin:0 0 20px}.library-card>p{font-size:14px;line-height:1.8;margin:0 0 28px}.library-card .card-link{margin-top:auto;display:flex;gap:10px;justify-content:space-between;font-size:11px;flex-wrap:wrap}.library-pagination{display:flex;align-items:center;justify-content:center;gap:24px;margin-top:40px}.library-pagination button:disabled{opacity:.4;cursor:default}.library-pagination span{font-size:13px;color:#b6c7d5}.article-related{border-top:1px solid #ffffff25;padding-top:30px;margin-top:45px}.article-related a{display:block;font-size:17px;line-height:1.5;margin:18px 0}.article-next-step{background:#14202a;padding:24px;margin-top:30px}.article-next-step>p{margin:0}.article-next-step .quiet-link{font-size:16px}.article-byline a{text-decoration:underline;text-underline-offset:3px}[hidden]{display:none!important}@media(max-width:1100px){.article-library-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.library-tools{grid-template-columns:1fr 220px}.library-tools button{justify-self:start}.library-heading{align-items:start;flex-direction:column;gap:18px}}@media(max-width:700px){.article-library-grid{grid-template-columns:1fr}.library-tools{grid-template-columns:1fr}.library-card h3{font-size:28px}.library-pagination{gap:12px}.library-pagination button{padding:10px 12px}.article-related h2{font-size:30px}}
/* Article photographs and the editorial library. */
.article-photo{max-width:1350px;margin:0 5% 56px}.article-photo img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;max-height:600px;clip-path:polygon(28px 0,calc(100% - 28px) 0,100% 28px,100% calc(100% - 28px),calc(100% - 28px) 100%,28px 100%,0 calc(100% - 28px),0 28px)}.article-photo figcaption{font-size:12px;color:#91a3b2;line-height:1.6;margin-top:14px}.article-photo figcaption a{text-decoration:underline;text-underline-offset:3px}.article-example{border-left:2px solid #a6d6f7;padding:8px 0 8px 28px}.article-example .micro-heading{margin-bottom:16px;font-size:10px}.article-body .article-callout h2{font-size:27px;margin:0 0 20px}.article-callout li{font-size:17px}.article-layout{grid-template-columns:220px minmax(0,780px);gap:7vw;justify-content:start;max-width:1350px}.article-contents a{line-height:1.6}.article-contents a:hover{color:#fff}.library-intro{padding-bottom:48px}.library-overview{display:flex;gap:30px;align-items:center;flex-wrap:wrap;margin-top:30px;color:#9daebb;font-size:13px}.library-overview strong{font-size:22px;font-weight:500;color:#eaf1f7;margin-right:6px}.library-overview a{color:#b5d2e8;text-decoration:underline;text-underline-offset:4px}.library-heading h2{font-size:clamp(28px,3vw,40px);letter-spacing:-.04em}.library-tools{display:block;padding:0}.library-search-field>label{font-size:13px;color:#bbcbd8}.library-search-wrap{display:flex;align-items:center;border:1px solid #3a4b5b;background:#101a23;margin-top:10px}.library-search-wrap>span{font-size:30px;padding-left:20px;color:#8ca9bd}.library-search-wrap input{border:0;background:none;padding:18px;font-size:20px;min-width:0;height:65px}.library-search-wrap:focus-within{outline:2px solid #a6d6f7;outline-offset:3px}.library-search-wrap input:focus{outline:none}.library-search-field>p{margin:10px 0 24px;color:#93a6b7;font-size:12px}.library-selects{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.library-tools select{cursor:pointer}.library-topics{display:flex;flex-wrap:wrap;gap:10px;padding:28px 0;border-bottom:1px solid #ffffff19}.library-topics button{display:flex;gap:12px;align-items:center;background:#111b24;padding:12px 16px;min-height:46px;font-size:13px;border:1px solid #293c4c;clip-path:polygon(8px 0,calc(100% - 8px) 0,100% 8px,100% calc(100% - 8px),calc(100% - 8px) 100%,8px 100%,0 calc(100% - 8px),0 8px)}.library-topics button span{color:#a9c6da;font-size:11px}.library-topics button[aria-pressed=true]{background:#dcebf6;color:#101a23;border-color:#dcebf6}.library-topics button[aria-pressed=true] span{color:#38566b}.library-topics button:hover{background:#253b4d}.library-topics button[aria-pressed=true]:hover{background:#e9f4fb}.library-results-head{display:flex;justify-content:space-between;align-items:center;gap:25px;margin:25px 0}.library-results-head p{font-size:14px;color:#b6c7d5;line-height:1.6;margin:0}.library-results-head .library-status{font-size:12px;color:#8fa5b7;margin-top:6px}.library-reset{background:transparent;border:0;color:#b5d2e8;text-decoration:underline;text-underline-offset:4px;font:14px Instrument,Arial,sans-serif;cursor:pointer;min-height:44px;white-space:nowrap}.library-card{padding:0;background:#121d27}.library-cover{aspect-ratio:16/9;overflow:hidden;background:#1e2d3a}.library-cover img{width:100%;height:100%;object-fit:cover;display:block;filter:saturate(.65);transition:filter .25s,transform .4s}.library-card:hover .library-cover img{filter:saturate(1);transform:scale(1.035)}.library-card-body{display:flex;flex-direction:column;padding:26px;flex:1}.library-card .card-top{margin:0 0 20px}.library-card h3{font-size:27px;font-weight:480;letter-spacing:-.025em;line-height:1.2;margin:0 0 16px}.library-card-body>p{font-size:14px;line-height:1.7;color:#a0b1c0;margin:0 0 26px}.library-card .card-link{margin-top:auto;border-top:1px solid #ffffff16;padding-top:16px;font-size:12px}.library-card mark{background:#a6d6f726;color:#d7edff;padding:0 1px}.library-pagination{gap:20px;flex-wrap:wrap}.library-pagination button{min-width:44px}.library-pagination button[aria-current=page]{background:#dcebf6;color:#111b24}.library-pagination #article-page-numbers{display:flex;gap:6px}.library-pagination #article-page-numbers button{padding:10px}.library-tools button:focus-visible,.library-pagination button:focus-visible,.library-reset:focus-visible{outline:2px solid #bce3ff;outline-offset:4px}.library-topics button:focus-visible{clip-path:none}.library-card:focus-visible{outline:3px solid #bce3ff;outline-offset:3px;clip-path:none}#library-empty{padding:55px 28px;background:#101b25;text-align:center}#library-empty h3{font-size:32px;margin:18px 0}#library-empty p{color:#a9bac7;line-height:1.7;max-width:530px;margin:0 auto 15px}.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}@media(min-width:1500px){.article-photo,.article-layout{margin-left:auto;margin-right:auto}}@media(max-width:900px){.article-layout{grid-template-columns:1fr;gap:35px}.article-contents{position:static;flex-direction:row;flex-wrap:wrap;gap:12px 20px}.article-contents>.micro-heading{width:100%}.article-contents a{font-size:12px}.article-photo{margin-bottom:35px}}@media(max-width:700px){.library-intro{padding-bottom:30px}.library-overview{gap:16px}.library-overview>a{width:100%}.library-selects{grid-template-columns:1fr 1fr;gap:16px}.library-selects>label:last-child{grid-column:1/-1}.library-search-wrap input{font-size:17px;height:58px;padding:14px}.library-topics{gap:8px}.library-topics button{padding:10px 12px;font-size:12px;gap:8px}.library-results-head{align-items:start;gap:12px}.library-results-head p{font-size:13px}.library-reset{font-size:12px}.library-card h3{font-size:28px}.library-pagination{gap:12px}.library-pagination #article-page-numbers{order:-1;justify-content:center;width:100%}.article-photo img{clip-path:polygon(18px 0,calc(100% - 18px) 0,100% 18px,100% calc(100% - 18px),calc(100% - 18px) 100%,18px 100%,0 calc(100% - 18px),0 18px)}.article-example{padding-left:20px}.article-callout{padding:24px}.article-callout li{font-size:16px}}@media(prefers-reduced-motion:reduce){.library-cover img{transition:none}.library-card:hover .library-cover img{transform:none}}
.article-table-wrap{overflow-x:auto;margin:28px 0;border:1px solid #2c4051}.article-table-wrap table{width:100%;border-collapse:collapse;min-width:510px;font-size:15px;line-height:1.65;color:#bfcfdb}.article-table-wrap caption{text-align:left;padding:16px 20px;background:#172633;color:#e2edf5;font-size:13px}.article-table-wrap th,.article-table-wrap td{padding:16px;text-align:left;vertical-align:top;border-bottom:1px solid #263847}.article-table-wrap thead{background:#111e28;color:#e4edf4}.article-table-wrap tbody th{color:#d7e6f1;font-weight:500}.article-body pre{overflow:auto;max-width:100%;background:#10212e;border:1px solid #2d4658;padding:24px;color:#c8e4f6;font:13px/1.8 ui-monospace,SFMono-Regular,Consolas,monospace;margin:28px 0;tab-size:2}.article-body p code{font-size:.85em;color:#c8e4f6}.article-flow{list-style:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:18px;padding:0;margin:30px 0;counter-reset:flow}.article-flow li{background:#152735;padding:22px 18px;position:relative;counter-increment:flow;border-top:2px solid #719bb8}.article-flow li:before{content:counter(flow,decimal-leading-zero);display:block;color:#80a8c4;font:12px monospace;margin-bottom:16px}.article-flow strong{display:block;color:#e5f0f8;font-weight:500;font-size:18px;margin-bottom:10px}.article-flow span{color:#afc4d3;font-size:14px;line-height:1.6;display:block}.article-author-note{padding:25px 0;border-top:1px solid #263a48}.article-author-note h2{font-size:22px;margin:0 0 12px}.article-author-note p{font-size:14px;margin:0;line-height:1.8}.library-editorial-links{display:flex;gap:22px;flex-wrap:wrap}.reading-intro .library-editorial-links{font-size:14px}.library-editorial-links a{text-decoration:underline;text-underline-offset:4px;color:#b7d8ee}.topic-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.topic-card h2{font-size:38px;margin:25px 0}.topic-card p,.topic-context p{font-size:17px;line-height:1.8;color:#a9bac8}.topic-card .card-link{margin-top:25px;display:flex;justify-content:space-between}.topic-path{list-style:none;padding:0;margin:35px 0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}.topic-path li{padding:28px;background:#13212c;clip-path:polygon(18px 0,calc(100% - 18px) 0,100% 18px,100% calc(100% - 18px),calc(100% - 18px) 100%,18px 100%,0 calc(100% - 18px),0 18px)}.topic-step{display:block;font:14px monospace;color:#98bfda;margin-bottom:24px}.topic-path a{font-size:25px;line-height:1.25;letter-spacing:-.03em}.topic-path p{font-size:15px;color:#a9bccb;line-height:1.8;margin:20px 0 0}.topic-guides{margin-top:30px}.topic-guide{display:flex;justify-content:space-between;gap:25px;padding:26px 0;border-bottom:1px solid #263744}.topic-guide strong{display:block;font-weight:450;font-size:24px;line-height:1.4}.topic-guide>span>span{display:block;color:#9cb2c2;max-width:760px;font-size:15px;line-height:1.8;margin-top:12px}.topic-guide:hover strong{color:#adddff}.topic-context{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:50px}.topic-context h2{font-size:36px;margin:24px 0}.topic-context .quiet-link{font-size:16px;margin-top:22px}.topic-card:focus-visible,.topic-guide:focus-visible{outline:2px solid #bce3ff;outline-offset:5px;clip-path:none}@media(max-width:900px){.topic-path{grid-template-columns:1fr}.topic-grid,.topic-context{grid-template-columns:1fr}.topic-card h2{font-size:34px}}@media(max-width:700px){.article-flow{grid-template-columns:1fr 1fr}.article-flow li{padding:18px 14px}.article-body pre{font-size:12px;padding:18px}.article-table-wrap{margin-left:0;margin-right:0}.article-table-wrap table{font-size:14px}.topic-guide strong{font-size:22px}.topic-context h2{font-size:30px}}
.article-table-wrap:focus-visible,.article-body pre:focus-visible{outline:2px solid #bce3ff;outline-offset:3px}

.library-intro.space-intro{padding-block:42px 36px}
.library-intro.space-intro .space-intro-copy>p{max-width:570px}
.library-intro.space-intro .library-editorial-links{font-size:13px;line-height:1.7}
.library-intro.space-intro .library-overview{gap:18px;flex-wrap:wrap}
@media(max-width:800px){.library-intro.space-intro{padding-block:38px 20px}.library-intro.space-intro .space-intro-art{width:min(90%,380px)}}