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.biohack-page .biohack-shell .guide-header{position:relative;top:auto;z-index:20}.biohack-page .biohack-shell .header-inner{max-width:1240px;padding:0 32px;min-height:74px}.biohack-page .biohack-shell .wordmark{gap:0;letter-spacing:-1px}.biohack-page .biohack-shell .wordmark strong,.biohack-page .biohack-shell .wordmark>span:last-child{font-size:26px;font-family:var(--sans);font-weight:650;letter-spacing:-1px}.biohack-page .biohack-shell .wordmark>span:last-child{color:#e8ddc8;text-transform:none}.biohack-page .biohack-shell .footer-brand{display:inline-flex;gap:0}.biohack-page .biohack-shell .footer-brand strong{color:#d2e7a8}.biohack-page .biohack-shell .footer-brand span{color:#e8ddc8}
.biohack-page .biohack-shell main{display:block}.biohack-page .biohack-shell .reader-aside{top:24px}.biohack-page .biohack-shell .reading-progress{top:0}.biohack-page .biohack-shell .guide-footer{margin-bottom:0}.biohack-page [data-site-header] svg{fill:revert;stroke:revert}
@media(max-width:700px){.biohack-page .biohack-shell .header-inner{padding:16px 20px 0;min-height:0;gap:14px;flex-wrap:wrap}.biohack-page .biohack-shell .header-inner nav{width:100%;margin-left:0;gap:24px;justify-content:flex-start}.biohack-page .biohack-shell .wordmark strong,.biohack-page .biohack-shell .wordmark>span:last-child{font-size:25px}.biohack-page .biohack-shell .guide-header{position:relative}.biohack-page .biohack-shell .reader-aside{top:auto}}
@media(max-width:360px){.biohack-page .biohack-shell .header-inner{padding-left:16px;padding-right:16px}.biohack-page .biohack-shell .header-inner nav{gap:18px}}
body.stud-v3.v4.biohack-page{background:#0b1011!important}
body.biohack-page .biohack-shell #main{padding:0 32px!important;margin:0 auto!important;max-width:1240px!important;width:100%}
body.biohack-page .biohack-shell #main:focus{outline:none!important;box-shadow:none!important}
@media(max-width:700px){body.biohack-page .biohack-shell #main{padding:0 20px!important}}
@media(max-width:360px){body.biohack-page .biohack-shell #main{padding:0 16px!important}}
.biohack-page .biohack-shell .skip{z-index:300}
.biohack-page main.biohack-shell{padding:0!important;margin:0!important;max-width:none!important;width:100%!important}
.biohack-page #main a{color:inherit!important}
.biohack-page #main a.primary-button{color:#142017!important}

/* Quick learning: a useful idea first, with the full explanation by choice. */
.biohack-page .biohack-shell .quick-home{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:38px 0 34px}
.biohack-page .biohack-shell .quick-home h1{font-size:clamp(42px,4.6vw,64px);margin:10px 0 16px}
.biohack-page .biohack-shell .quick-home-copy>p:not(.eyebrow){color:var(--muted);max-width:380px;font-size:17px;line-height:1.5}
.biohack-page .biohack-shell .quick-home .search-form{margin-top:20px}
.biohack-page .biohack-shell .featured-idea{position:relative;isolation:isolate;overflow:hidden;border:1px solid #455047;border-radius:8px;min-height:295px;display:flex;align-items:end;background:#192220}
.biohack-page .biohack-shell .featured-idea img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:65% 40%;z-index:-2}
.biohack-page .biohack-shell .featured-idea:before{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,15,15,.95),rgba(8,15,15,.52));z-index:-1}
.biohack-page .biohack-shell .featured-idea>div{padding:26px;max-width:430px}
.biohack-page .biohack-shell .featured-idea h2{font-size:34px;line-height:1.08;margin:9px 0 13px}
.biohack-page .biohack-shell .featured-idea p:not(.eyebrow){color:#f1f1e8;font-size:14px;line-height:1.5}
.biohack-page .biohack-shell .featured-idea .text-link{margin-top:12px;color:var(--accent)}
.biohack-page .biohack-shell .quick-library{border-top:1px solid var(--line);padding-top:24px}
.biohack-page .biohack-shell .quick-library .section-top{margin-bottom:8px}
.biohack-page .biohack-shell .quick-library .filter-bar{border:0;padding-bottom:16px}
.biohack-page .biohack-shell .idea-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-bottom:32px}
.biohack-page .biohack-shell .lesson-row.idea-card{position:relative;display:block;padding:23px;border:1px solid var(--line);border-radius:7px;background:var(--surface)}
.biohack-page .biohack-shell .idea-card:hover{border-color:#667567}
.biohack-page .biohack-shell .idea-card .lesson-main{height:100%;display:flex;flex-direction:column}
.biohack-page .biohack-shell .idea-card .lesson-main>a{height:100%;display:flex;flex-direction:column}
.biohack-page .biohack-shell .idea-card .lesson-main .eyebrow{padding-right:28px;margin-bottom:16px;min-height:18px}
.biohack-page .biohack-shell .idea-card .lesson-main h2{font-family:var(--serif);font-size:28px;line-height:1.12;margin-bottom:12px;font-weight:400}
.biohack-page .biohack-shell .idea-card .lesson-main p:not(.eyebrow){font-size:14px;line-height:1.55;margin-bottom:18px}
.biohack-page .biohack-shell .idea-open{display:flex;justify-content:space-between;align-items:center;margin-top:auto;color:var(--accent);font-size:12px;min-height:28px}
.biohack-page .biohack-shell .idea-open>span{font-size:22px}
.biohack-page .biohack-shell .idea-card>.save-button{position:absolute;right:12px;top:11px;margin:0;width:44px;height:44px}
.biohack-page .biohack-shell .idea-card .lesson-row-meta:empty{display:none}
.biohack-page .biohack-shell .idea-card .lesson-row-meta{margin-top:6px}
.biohack-page .biohack-shell .compact-paths .path-card{padding:22px}
.biohack-page .biohack-shell .quick-reader-layout{grid-template-columns:minmax(0,720px) 215px;gap:68px;max-width:1003px}
.biohack-page .biohack-shell .quick-reader .back-link{margin-bottom:3px}
.biohack-page .biohack-shell .quick-reader .reader-title{font-size:clamp(36px,4vw,53px);margin:10px 0 12px;max-width:680px}
.biohack-page .biohack-shell .quick-reader .reader-meta{margin:0 0 17px;min-height:44px}
.biohack-page .biohack-shell .quick-what{font-size:20px;line-height:1.5;color:#e4e9dc;max-width:660px}
.biohack-page .biohack-shell .quick-hits{list-style:none;counter-reset:quick;padding:0;margin:24px 0}
.biohack-page .biohack-shell .quick-hits>li{counter-increment:quick;position:relative;padding:19px 0 19px 42px;border-top:1px solid var(--line)}
.biohack-page .biohack-shell .quick-hits>li:before{content:counter(quick,decimal-leading-zero);position:absolute;left:0;top:20px;color:var(--gold);font-size:12px;font-weight:600}
.biohack-page .biohack-shell .quick-hits h2{font-family:var(--sans);font-size:21px;line-height:1.25;letter-spacing:-.025em;font-weight:600;margin-bottom:7px}
.biohack-page .biohack-shell .quick-hits p{font-size:17px;line-height:1.65;color:var(--muted)}
.biohack-page .biohack-shell .quick-action{background:#1b2721;border:1px solid #3a4a38;border-radius:6px;padding:22px 24px}
.biohack-page .biohack-shell .quick-action h2{font-family:var(--sans);font-size:22px;font-weight:600;line-height:1.25;margin:9px 0}
.biohack-page .biohack-shell .quick-action>p:last-child{font-size:17px;line-height:1.6;color:#d9e0d6}
.biohack-page .biohack-shell .quick-caution{font-size:14px;line-height:1.6;color:var(--muted);padding:15px 0 22px}
.biohack-page .biohack-shell .quick-caution strong{color:var(--ink);margin-right:4px}
.biohack-page .biohack-shell .quick-remember{padding:21px 0 24px;border-top:1px solid var(--line)}
.biohack-page .biohack-shell .remember-line{font-family:var(--serif);font-size:27px;line-height:1.3;margin-top:12px}
.biohack-page .biohack-shell .copy-takeaway{display:flex;gap:14px;align-items:center;background:transparent;border:1px solid #536049;border-radius:4px;padding:9px 14px;min-height:44px;font-size:13px;margin-top:17px;color:var(--accent)}
.biohack-page .biohack-shell .copy-takeaway:hover{background:#d2e7a812}
.biohack-page .biohack-shell .copy-feedback{font-size:13px;color:var(--accent);margin-top:6px;min-height:0}
.biohack-page .biohack-shell .copy-feedback:empty{display:none}
.biohack-page .biohack-shell .copy-fallback{width:100%;min-height:155px;padding:12px;margin-top:12px;background:var(--surface);color:var(--ink);font:14px/1.5 var(--sans);border:1px solid var(--line);border-radius:4px}
.biohack-page .biohack-shell .copy-fallback:focus-visible{outline:3px solid var(--gold);outline-offset:3px}
.biohack-page .biohack-shell .quick-check,.biohack-page .biohack-shell .deeper-reading,.biohack-page .biohack-shell .community-details{border-top:1px solid var(--line)}
.biohack-page .biohack-shell :is(.quick-check,.deeper-reading,.community-details)>summary{display:flex;align-items:center;justify-content:space-between;gap:15px;list-style:none;cursor:pointer;min-height:64px;padding:16px 0;font-size:16px;line-height:1.35}
.biohack-page .biohack-shell :is(.quick-check,.deeper-reading,.community-details)>summary::-webkit-details-marker{display:none}
.biohack-page .biohack-shell :is(.quick-check,.deeper-reading,.community-details)>summary>span:last-child{font-size:24px;color:var(--accent)}
.biohack-page .biohack-shell :is(.quick-check,.deeper-reading,.community-details)[open]>summary>span:last-child{transform:rotate(45deg)}
.biohack-page .biohack-shell .deeper-reading summary small{display:block;color:var(--muted);font-size:12px;margin-top:4px}
.biohack-page .biohack-shell .quick-check .quiz{margin:0 0 24px}
.biohack-page .biohack-shell .deeper-content{padding-top:8px}
.biohack-page .biohack-shell .detail-jumps{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px}
.biohack-page .biohack-shell .detail-jumps a{padding:7px 11px;min-height:44px;display:flex;align-items:center;border:1px solid var(--line);border-radius:4px;font-size:12px;color:var(--muted)}
.biohack-page .biohack-shell .community-details .community-box{margin-top:0}
.biohack-page .biohack-shell .quick-reader .sources-details{margin:0 0 22px;padding:5px 0}
.biohack-page .biohack-shell .quick-reader .sources-details summary{min-height:64px;display:flex;align-items:center;padding:10px 0}
.biohack-page .biohack-shell .quick-reader .related-region{padding-top:26px}
@media(max-width:1000px){.biohack-page .biohack-shell .quick-reader-layout{display:block;max-width:720px}.biohack-page .biohack-shell .idea-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.biohack-page .biohack-shell .quick-home{gap:28px}.biohack-page .biohack-shell .quick-home h1{font-size:48px}}
@media(max-width:700px){
 .biohack-page .biohack-shell .quick-home{grid-template-columns:1fr;gap:20px;padding:24px 0}
 .biohack-page .biohack-shell .quick-home h1{font-size:43px;margin:8px 0 12px}
 .biohack-page .biohack-shell .quick-home h1 br{display:none}
 .biohack-page .biohack-shell .quick-home-copy>p:not(.eyebrow){font-size:15px;max-width:340px}
 .biohack-page .biohack-shell .quick-home .search-form{margin-top:16px}
 .biohack-page .biohack-shell .featured-idea{min-height:0}
 .biohack-page .biohack-shell .featured-idea>div{padding:18px 20px;max-width:360px}
 .biohack-page .biohack-shell .featured-idea h2{font-size:28px;max-width:290px;margin:7px 0 10px}
 .biohack-page .biohack-shell .featured-idea .text-link{margin-top:6px;min-height:32px}
 .biohack-page .biohack-shell .quick-library{padding-top:22px}
 .biohack-page .biohack-shell .quick-library .filter-bar{padding-bottom:12px}
 .biohack-page .biohack-shell .idea-grid{grid-template-columns:1fr;gap:12px}
 .biohack-page .biohack-shell .lesson-row.idea-card{padding:20px}
 .biohack-page .biohack-shell .idea-card .lesson-main .eyebrow{margin-bottom:12px}
 .biohack-page .biohack-shell .idea-card .lesson-main h2{font-size:28px;max-width:340px;margin-bottom:10px}
 .biohack-page .biohack-shell .idea-card .lesson-main p:not(.eyebrow){font-size:14px;margin-bottom:10px}
 .biohack-page .biohack-shell .quick-reader-layout{padding-top:13px}
 .biohack-page .biohack-shell .quick-reader .reader-title{font-size:37px;line-height:1.08;margin:8px 0}
 .biohack-page .biohack-shell .quick-reader .reader-meta{margin-bottom:10px;gap:10px}
 .biohack-page .biohack-shell .quick-what{font-size:18px;line-height:1.5}
 .biohack-page .biohack-shell .quick-hits{margin:20px 0 12px}
 .biohack-page .biohack-shell .quick-hits>li{padding:17px 0 17px 32px}
 .biohack-page .biohack-shell .quick-hits>li:before{top:19px;font-size:11px}
 .biohack-page .biohack-shell .quick-hits h2{font-size:19px;margin-bottom:6px}
 .biohack-page .biohack-shell .quick-hits p{font-size:16px;line-height:1.6}
 .biohack-page .biohack-shell .quick-action{padding:19px}
 .biohack-page .biohack-shell .quick-action h2{font-size:21px}
 .biohack-page .biohack-shell .quick-action>p:last-child{font-size:16px}
 .biohack-page .biohack-shell .remember-line{font-size:25px}
 .biohack-page .biohack-shell .quick-caution{font-size:13px}
 .biohack-page .biohack-shell .quick-reader .related-grid{gap:10px}
 .biohack-page .biohack-shell .quick-reader .related-card{padding:19px}
}
@media(max-width:360px){.biohack-page .biohack-shell .quick-home h1{font-size:38px}.biohack-page .biohack-shell .quick-reader .reader-title{font-size:33px}.biohack-page .biohack-shell .quick-library .section-top{align-items:start}.biohack-page .biohack-shell .quick-library .section-top .text-link{white-space:normal;max-width:70px;line-height:1.3}}