/* OSA patient guide. Shared brand lives in site.css. */
.osa-page main{background:var(--paper)}.osa-hero{width:min(1320px,calc(100% - 80px));margin:45px auto 0;display:grid;grid-template-columns:48% 52%;align-items:center;padding:0 0 45px;position:relative}.osa-hero-copy{padding:25px 50px 25px 35px;position:relative;z-index:1}.osa-hero .eyebrow{font-size:24px;color:var(--muted);margin-bottom:22px}.osa-hero h1{font:500 clamp(34px,3.2vw,49px)/1.75 var(--serif);letter-spacing:.05em;margin:0 0 24px;color:var(--ink)}.osa-formal{font-size:16px;font-weight:500;color:var(--ink);margin:0 0 22px}.osa-hero-copy>p:not(.eyebrow):not(.osa-formal):not(.osa-hero-note){line-height:2.2;font-size:16px}.osa-hero-image{margin:0;position:relative}.osa-hero-image img{width:100%;height:570px;object-fit:cover;object-position:43% center;border-radius:150px 8px 80px 8px;display:block}.osa-hero-image figcaption{font-size:10px;letter-spacing:.06em;margin-top:12px;color:var(--muted)}.osa-orbit{position:absolute;top:28px;right:25px;font:italic 500 38px/1 var(--latin);color:var(--paper);text-shadow:0 2px 12px #2b262233;transform:rotate(8deg);pointer-events:none}.osa-hero .inline-actions{gap:24px;flex-wrap:wrap;margin-top:30px}.osa-hero .button{font-size:14px;min-width:150px}.osa-hero-note{font-size:12px;color:var(--muted);margin-top:22px;line-height:1.9}.osa-page .breadcrumb{padding-block:10px 30px;margin-bottom:0;border-bottom:1px solid var(--line)}.osa-layout{width:min(1200px,calc(100% - 96px));margin:0 auto 120px;display:grid;grid-template-columns:minmax(0,860px) 220px;gap:80px;align-items:start}.osa-article{min-width:0;font-size:16px;line-height:2.05}.osa-article p{margin:0 0 23px;text-align:left}.osa-section{padding:88px 0;border-bottom:1px solid var(--line);scroll-margin-top:130px}.osa-heading{display:flex;gap:24px;align-items:start;margin-bottom:30px}.osa-index{font:500 70px/.95 var(--latin);color:var(--muted);padding-top:8px;min-width:68px}.osa-heading .eyebrow{font-size:17px;margin:0 0 13px}.osa-heading h2{font:500 34px/1.7 var(--serif);letter-spacing:.05em;margin:0;color:var(--ink)}.osa-article h3{font:500 23px/1.8 var(--serif);margin:0 0 17px;color:var(--ink);letter-spacing:.02em}.osa-article h4{font:500 17px/1.8 var(--sans);margin:0 0 12px}.osa-lead{font-size:17px;line-height:2.1}.osa-signs{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:32px 0 24px}.osa-signs>div{padding:28px;background:var(--paper);border-radius:4px 28px 4px 4px}.osa-signs>div:nth-child(2){background:var(--paper)}.sign-symbol{font-size:28px;line-height:1.2;color:var(--muted);display:block;margin-bottom:12px}.osa-signs>div:nth-child(2) .sign-symbol{color:var(--muted)}.osa-signs h3{font-size:20px}.osa-signs ul{padding-left:18px;margin:0}.osa-signs li{font-size:15px;padding-block:5px;line-height:1.9}.osa-note{font-size:13px!important;color:var(--muted);line-height:1.9!important}.osa-safety{padding:22px 26px;border-left:3px solid var(--muted);background:var(--paper);margin-top:25px}.osa-safety strong{font-size:15px;font-weight:500;color:var(--ink)}.osa-safety p{font-size:14px;margin:7px 0 0}.osa-airway-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:30px 0 16px}.osa-airway-grid figure{margin:0;background:var(--paper);border-radius:4px 32px 4px 4px;padding:24px}.osa-airway-grid figure:nth-child(2){background:var(--paper)}.diagram-kicker{font:500 12px/1.4 var(--sans);letter-spacing:.15em;color:var(--muted)}.osa-airway-grid img{width:100%;height:auto;display:block;margin:15px 0}.osa-airway-grid figcaption strong{font:500 21px/1.8 var(--serif);display:block;margin-bottom:8px}.osa-airway-grid figcaption span{font-size:14px;color:var(--muted)}.osa-definition{padding:25px 30px;border:1px solid var(--line);border-radius:4px;margin:35px 0}.osa-definition>strong{display:block;color:var(--ink);font-size:16px;margin-bottom:10px;font-weight:500}.osa-definition p{font-size:14px;margin:0}.osa-definition p strong{font-weight:500}.osa-subsection{margin-top:46px;scroll-margin-top:140px}.osa-tests{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:34px 0 16px}.osa-test{background:var(--paper);border-radius:4px 36px 4px 4px;padding:30px 28px;scroll-margin-top:140px}.osa-test:nth-child(2){background:var(--paper)}.osa-test .eyebrow{font-size:17px;margin-bottom:12px}.osa-test h3{font-size:26px;margin-bottom:0}.osa-test>img{display:block;width:100%;height:auto;margin:10px 0 25px}.osa-test dl{margin:0}.osa-test dt{font-size:12px;letter-spacing:.08em;color:var(--ink);margin-top:24px;margin-bottom:8px;font-weight:500}.osa-test dd{margin:0;padding-bottom:20px;border-bottom:1px solid var(--line);font-size:15px;line-height:1.95}.osa-test dd:last-child{border:0;padding-bottom:0}.osa-decision{display:flex;gap:20px;background:var(--paper);padding:25px 28px;margin:30px 0}.osa-decision>span{font:500 36px var(--latin);color:var(--muted)}.osa-decision p{font-size:15px;margin:0}.osa-decision strong{font-weight:500}.osa-ahi{margin-top:45px}.ahi-scale{display:grid;grid-template-columns:repeat(3,1fr);margin:28px 0 20px}.ahi-scale>div{padding:24px 18px;background:var(--paper)}.ahi-scale>div:nth-child(2){background:var(--line)}.ahi-scale>div:nth-child(3){background:var(--line)}.ahi-scale b{font:500 34px/1.3 var(--latin);display:block;color:var(--ink)}.ahi-scale span{font-size:14px}.osa-steps{list-style:none;padding:0;margin:35px 0}.osa-steps li{display:grid;grid-template-columns:60px 1fr;gap:26px;padding:26px 0;border-bottom:1px solid var(--line)}.osa-steps li>span{font:500 50px/1 var(--latin);color:var(--muted)}.osa-steps li h3{font-size:21px;margin-bottom:10px}.osa-steps li p{margin:0;font-size:15px}.osa-disclosure{border-top:1px solid var(--line);padding:20px 0;scroll-margin-top:140px}.osa-disclosure:last-of-type{border-bottom:1px solid var(--line)}.osa-disclosure summary{list-style:none;cursor:pointer;display:flex;align-items:baseline;justify-content:space-between;gap:16px;font-size:16px;font-weight:500;min-height:44px;padding:8px 0;line-height:1.8}.osa-disclosure summary:after{content:'＋';flex:0 0 22px;font-weight:400;color:var(--muted)}.osa-disclosure[open] summary:after{content:'−'}.osa-disclosure summary::-webkit-details-marker{display:none}.osa-disclosure p{margin:16px 0 0;font-size:15px}.osa-cpap-figure{display:grid;grid-template-columns:52% 1fr;gap:28px;padding:30px;background:var(--paper);border-radius:4px 42px 4px 4px;margin:32px 0 38px;align-items:center}.osa-cpap-figure img{width:100%;height:auto}.osa-cpap-figure strong{font:500 24px/1.8 var(--serif);display:block;margin-bottom:16px}.osa-cpap-figure p{font-size:14px;margin:0 0 15px}.osa-cpap-figure small{font-size:11px;color:var(--muted)}.osa-outcomes{display:grid;grid-template-columns:1fr 1fr;gap:30px;margin:30px 0}.osa-outcomes b{display:block;font:italic 500 27px var(--latin);color:var(--muted);margin-bottom:15px}.osa-outcomes p{font-size:15px}.osa-support{background:var(--paper);margin-top:70px;padding:44px 38px;border:0;border-radius:4px 44px 4px 4px}.osa-support .osa-heading{gap:18px}.osa-support .osa-heading h2{font-size:30px}.osa-support .osa-index{min-width:50px;font-size:56px}.osa-support-list{margin:35px 0}.osa-support-list>div{padding:20px 0;border-top:1px solid var(--line)}.osa-support-list h3{font-size:19px;margin-bottom:10px}.osa-support-list p{font-size:15px;margin:0}.osa-next h2{font-size:30px;margin-bottom:24px}.osa-next .inline-actions{gap:25px;flex-wrap:wrap}.osa-next .button{min-width:150px}.osa-toc{min-width:0;position:sticky;top:138px;padding-top:80px;align-self:start}.osa-toc>.eyebrow{font-size:23px;color:var(--muted);margin-bottom:13px}.osa-toc>p:not(.eyebrow){font-size:12px;padding-bottom:18px;margin:0;border-bottom:1px solid var(--line)}.osa-toc nav{margin-top:17px}.osa-toc nav a{display:flex;gap:12px;text-decoration:none;font-size:12px;line-height:1.8;padding:12px 0;color:var(--muted);align-items:baseline}.osa-toc nav a span{font:500 19px var(--latin);color:var(--muted)}.osa-toc nav a.is-active{color:var(--ink);font-weight:500}.osa-toc nav a.is-active span{color:var(--muted)}.osa-toc nav .osa-toc-sub{padding:0 0 9px 32px;font-size:11px}.osa-toc>.button{font-size:13px;margin-top:20px;min-width:170px}.osa-related{margin:50px 0;padding:25px 0;border-block:1px solid var(--line)}.osa-related>.tt{font-size:14px}.osa-related .row{display:grid;grid-template-columns:1fr 1fr;gap:12px 25px}.osa-related .btn2{margin:0}.osa-related a{font-size:13px;padding:10px 0;min-height:44px;display:block;border-bottom:1px solid var(--line);text-align:left}.osa-doctor{margin-top:25px}.osa-doctor summary{font-size:14px;cursor:pointer;min-height:44px}.osa-doctor .article{width:100%;margin:0;max-width:none}.osa-doctor .author-box{margin:20px 0 0}.only-mobile{display:none}.osa-article .medical-sources p{font-size:13px;margin-top:20px}.osa-reading-progress{position:fixed;top:0;left:0;width:100%;height:2px;background:var(--muted);transform:scaleX(0);transform-origin:left;z-index:1100;pointer-events:none}
@media(max-width:1100px){.osa-hero{width:calc(100% - 64px);grid-template-columns:1fr 1fr}.osa-hero-copy{padding:20px 25px 20px 0}.osa-hero h1{font-size:35px}.osa-hero-image img{height:520px;border-top-left-radius:100px}.osa-layout{grid-template-columns:minmax(0,1fr);gap:0;width:calc(100% - 64px);max-width:860px}.osa-toc{position:static;grid-row:1;padding-top:25px}.osa-toc>p,.osa-toc>.eyebrow,.osa-toc>.button{display:none}.osa-toc nav{display:flex;gap:5px;overflow-x:auto;border-bottom:1px solid var(--line);margin-top:0;padding-bottom:10px}.osa-toc nav a{flex:0 0 auto;padding:10px 12px;font-size:12px;min-height:44px}.osa-toc nav .osa-toc-sub{display:none}.osa-section{padding-block:65px}.osa-hero .button{min-width:120px}.osa-hero .inline-actions{gap:15px}.osa-orbit{font-size:28px}}
@media(max-width:600px){.osa-hero{width:100%;margin:0;padding:0;display:flex;flex-direction:column}.osa-hero-image{order:-1;width:100%;padding:0 20px}.osa-hero-image img{height:280px;border-radius:70px 4px 40px 4px;object-position:center}.osa-hero-image figcaption{font-size:9px;margin:8px 0 0 5px}.osa-orbit{right:40px;top:25px;font-size:27px}.osa-hero-copy{width:100%;padding:32px 24px 20px}.osa-hero .eyebrow{font-size:22px;margin-bottom:14px}.osa-hero h1{font-size:31px;line-height:1.7;letter-spacing:.035em;margin-bottom:20px}.osa-formal{font-size:14px;margin-bottom:16px}.osa-hero-copy>p:not(.eyebrow):not(.osa-formal):not(.osa-hero-note){font-size:15px;line-height:2.1}.osa-hero .inline-actions{margin-top:23px;gap:20px}.osa-hero .button{font-size:13px}.osa-hero-note{font-size:11px;margin-top:18px}.osa-layout{width:calc(100% - 48px);margin-bottom:70px}.osa-page .breadcrumb{font-size:10px;padding-bottom:22px}.osa-section{padding-block:55px;scroll-margin-top:85px}.osa-heading{gap:13px;margin-bottom:25px}.osa-index{font-size:47px;min-width:41px;padding-top:6px}.osa-heading .eyebrow{font-size:15px;line-height:1.4;margin-bottom:10px;letter-spacing:.02em}.osa-heading h2{font-size:24px;line-height:1.8;letter-spacing:.02em}.osa-lead{font-size:16px}.osa-article{font-size:16px}.osa-article h3{font-size:21px}.osa-signs{grid-template-columns:1fr;gap:13px;margin-top:24px}.osa-signs>div{padding:24px}.osa-signs h3{font-size:21px}.osa-signs li{font-size:15px}.sign-symbol{float:right;margin:0}.osa-safety{padding:20px}.osa-airway-grid{grid-template-columns:1fr;gap:15px}.osa-airway-grid figure{padding:22px}.osa-airway-grid img{max-height:170px;object-fit:contain;margin:6px 0}.osa-airway-grid figcaption strong{font-size:20px}.osa-definition{padding:22px}.osa-subsection{margin-top:35px;scroll-margin-top:85px}.osa-tests{grid-template-columns:1fr;gap:20px}.osa-test{padding:25px;scroll-margin-top:85px}.osa-test>img{max-height:200px;object-fit:contain;margin-bottom:20px}.osa-test h3{font-size:25px}.osa-test dt{margin-top:18px}.osa-test dd{font-size:15px}.osa-decision{padding:21px;gap:12px}.osa-decision>span{font-size:27px}.osa-decision p{font-size:14px}.ahi-scale>div{padding:20px 9px}.ahi-scale b{font-size:27px;white-space:nowrap;letter-spacing:0}.ahi-scale span{font-size:13px}.osa-steps li{grid-template-columns:36px 1fr;gap:16px;padding:24px 0}.osa-steps li>span{font-size:38px}.osa-steps li h3{font-size:19px}.osa-disclosure{scroll-margin-top:85px}.osa-disclosure summary{font-size:15px}.osa-disclosure p{font-size:15px}.osa-cpap-figure{grid-template-columns:1fr;gap:18px;padding:25px;margin-block:25px}.osa-cpap-figure img{max-height:190px;object-fit:contain}.osa-cpap-figure strong{font-size:23px}.osa-outcomes{grid-template-columns:1fr;gap:15px;margin-bottom:20px}.osa-outcomes h4{font-size:17px}.osa-outcomes b{font-size:25px;margin-bottom:8px}.osa-support{margin-top:30px;padding:30px 22px}.osa-support .osa-heading{display:block}.osa-support .osa-index{display:block;font-size:43px;margin-bottom:15px}.osa-support .osa-heading h2{font-size:25px}.osa-support-list h3{font-size:19px}.osa-next h2{font-size:25px}.osa-next .button{min-width:130px;font-size:13px}.only-mobile{display:block}.osa-toc{padding-top:15px}.osa-toc nav a{font-size:12px}.osa-note{font-size:12px!important}.osa-related .row{gap:8px 18px}.osa-related a{font-size:12px}}
@media(max-width:359px){.osa-hero h1{font-size:27px}.osa-heading h2{font-size:21px}.osa-index{font-size:41px;min-width:34px}.osa-heading{gap:10px}.ahi-scale b{font-size:23px}.osa-signs>div,.osa-test{padding:20px}.osa-support{padding:26px 18px}.osa-support .osa-heading h2{font-size:22px}}
@media(prefers-reduced-motion:reduce){.osa-reading-progress{display:none}.osa-orbit{transform:none}}

.osa-hero-image img,.osa-signs>div,.osa-airway-grid figure,.osa-test,.osa-cpap-figure,.osa-support{border-radius:8px}.osa-orbit{display:none}.osa-heading .eyebrow,.osa-index{color:var(--accent)}