:root{--navy:#172f35;--teal:#096b60;--green:#356641;--ink:#30464a;--muted:#607174;--line:#dce3df;--pale:#edf3ef;--paper:#fff;--amber:#895310;--radius:10px;--editorial-font:Georgia, "Times New Roman", serif;color:var(--ink);font-synthesis:none;background:#f8f9f6;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0;font-size:16px;line-height:1.65}a{color:var(--teal);text-underline-offset:4px}a:hover{color:var(--navy)}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline-offset:4px;outline:3px solid #dc8a26}button,input,select{font:inherit}button{cursor:pointer}h1,h2,h3,h4{color:var(--navy);text-wrap:balance;letter-spacing:-.025em;margin:0 0 1rem;font-weight:650;line-height:1.22}h1{font-size:clamp(2rem,4vw,3.25rem)}h2{font-size:1.7rem}h3{font-size:1.18rem;line-height:1.4}p{margin:0 0 1rem}small{font-size:.8rem}.shell{max-width:1256px;margin:auto;padding-inline:32px}.masthead{background:var(--paper);border-top:3px solid var(--teal)}.masthead-inner{justify-content:space-between;align-items:center;gap:20px;min-height:88px;display:flex}.brand{color:var(--navy);letter-spacing:-.025em;align-items:center;gap:16px;font-size:1.5rem;line-height:1.15;text-decoration:none;display:flex}.brand strong{font-weight:700}.brand small{letter-spacing:.15em;margin-top:9px;font-size:.66rem;display:block}.brand-icon{background:var(--navy);color:#fff;border-radius:10px;place-content:center;width:51px;height:51px;font-size:2rem;font-weight:600;display:grid;position:relative}.brand-icon span{font-size:1.25rem;position:absolute;bottom:2px;right:7px}.masthead-note{color:var(--muted);align-items:center;gap:9px;font-size:.82rem;display:flex}.edition-dot{background:var(--teal);border-radius:50%;width:7px;height:7px}.nav-wrap{border-block:1px solid var(--line);background:#fff}.navigation{align-items:stretch;gap:30px;min-height:55px;display:flex}.navigation a{color:var(--muted);white-space:nowrap;border-bottom:3px solid #0000;align-items:center;padding-top:3px;font-size:.88rem;text-decoration:none;display:flex}.navigation a:hover,.navigation a[aria-current]{border-color:var(--teal);color:var(--navy)}.navigation .nav-method{margin-left:auto}.menu-toggle{border:1px solid var(--line);color:var(--navy);background:#fff;padding:.5rem .8rem;display:none}main{min-height:65vh;padding-block:40px 80px}.eyebrow{color:var(--teal);text-transform:uppercase;letter-spacing:.13em;margin-bottom:12px;font-size:.75rem;font-weight:700}.page-head{margin-bottom:32px}.page-head p{color:var(--muted);max-width:780px}.section-head{justify-content:space-between;align-items:baseline;gap:20px;margin:52px 0 22px;display:flex}.section-head h2{margin:0}.section-head a{font-size:.88rem}.notice{color:#71490f;background:#fcf4e5;border-left:3px solid #b27620;margin-bottom:26px;padding:12px 16px;font-size:.88rem}.notice a{color:inherit}.hero-grid{grid-template-columns:minmax(0,1.65fr) minmax(0,1fr);gap:28px;margin-top:26px;display:grid}.lead-card{border-radius:var(--radius);background:var(--navy);color:#d7e6ec;padding:clamp(24px,3.5vw,44px);position:relative}.lead-card h2{font-family:var(--editorial-font);color:#fff;max-width:640px;font-size:clamp(1.8rem,2.6vw,2.6rem);font-weight:400;line-height:1.2}.lead-card .eyebrow{color:#90d2d3}.lead-card a{color:#fff}.lead-card .meta{color:#c0d3de}.button{background:0 0;border:1px solid;border-radius:6px;justify-content:center;align-items:center;min-height:44px;padding:10px 18px;font-size:.88rem;font-weight:600;text-decoration:none;display:inline-flex}.button.primary{background:var(--teal);color:#fff;border-color:var(--teal)}.metrics{border-top:1px solid #426072;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px;margin-top:28px;padding-top:22px;display:grid}.metric strong{color:#fff;font-family:ui-monospace,monospace;font-size:1.6rem;display:block}.metric span{color:#c0d3de;font-size:.8rem}.card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;min-width:0;padding:26px}.card a.title-link{color:var(--navy);text-decoration:none}.card a.title-link:hover{text-decoration:underline}.card p{color:var(--muted);font-size:.94rem}.card-index{color:var(--teal);margin-bottom:16px;font-family:ui-monospace,monospace;font-size:.88rem;display:block}.cards{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;display:grid}.cards.two{grid-template-columns:repeat(2,1fr)}.meta{color:var(--muted);font-size:.8rem}.badge{background:var(--pale);color:var(--teal);text-transform:uppercase;letter-spacing:.05em;padding:3px 8px;font-size:.7rem;font-weight:650;line-height:1.5;display:inline-block}.badge.sample{color:#805218;background:#fcf0d9}.badge.status{color:#3a5466;background:#edf1f5}.row{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.rule{border-top:1px solid var(--line);margin-top:22px;padding-top:20px}.list-clean{margin:0;padding:0;list-style:none}.list-clean li+li{border-top:1px solid var(--line);margin-top:16px;padding-top:16px}.list-clean a{font-weight:600}.statline{border:1px solid var(--line);background:#fff;grid-template-columns:repeat(4,1fr);display:grid}.statline>div{border-right:1px solid var(--line);padding:20px 24px}.statline>div:last-child{border:0}.statline strong{color:var(--navy);font-family:ui-monospace,monospace;font-size:1.8rem;display:block}.statline span{color:var(--muted);font-size:.82rem}.filters{background:var(--pale);border:1px solid var(--line);grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:20px;padding:20px;display:grid}.filters label,.field label{font-size:.82rem;font-weight:600;display:block}.filters input,.filters select,.field input{width:100%;min-height:42px;color:var(--ink);background:#fff;border:1px solid #9bafb8;border-radius:6px;margin-top:5px;padding:8px 10px;display:block}.filters .wide{grid-column:span 2}.table-wrap{border-radius:var(--radius);border:1px solid var(--line);background:#fff;overflow-x:auto}table{border-collapse:collapse;text-align:left;width:100%;font-size:.87rem}th{color:var(--muted);letter-spacing:.05em;text-transform:uppercase;background:#f1f5f2;font-size:.72rem}td,th{border-bottom:1px solid var(--line);vertical-align:top;padding:16px}td a{font-weight:600}td .meta{max-width:250px;display:block}td.capacity{font-family:ui-monospace,monospace;font-size:.8rem}tr:last-child td{border-bottom:none}caption{text-align:left;padding:14px 16px;font-weight:600}.empty{text-align:center;border:1px dashed var(--line);color:var(--muted);background:#fff;padding:30px}[hidden]{display:none!important}.detail-grid{grid-template-columns:2fr 1fr;gap:28px;display:grid}.definition-grid{grid-template-columns:repeat(2,1fr);gap:20px;margin:0;display:grid}.definition-grid dt{color:var(--muted);font-size:.8rem}.definition-grid dd{margin:4px 0 0;font-weight:550}.timeline{border-left:2px solid #a1c5c7;margin-left:6px;padding-left:22px;list-style:none}.timeline li{margin-bottom:24px;position:relative}.timeline li:before{content:"";background:var(--teal);width:10px;height:10px;position:absolute;top:8px;left:-28px}.timeline pre{white-space:pre-wrap;overflow-wrap:anywhere;background:var(--pale);padding:12px;font-size:.75rem}.prose{max-width:740px;margin:auto;font-size:1.0625rem;line-height:1.85}.prose h2{border-top:1px solid var(--line);margin-top:2.4rem;padding-top:1.4rem}.prose h3{margin-top:1.5rem}.prose li{margin-block:.5rem}.prose blockquote{background:var(--pale);border-left:3px solid var(--teal);margin:1.5rem 0;padding:1rem 1.2rem}.prose table{display:block;overflow:auto}.prose a{overflow-wrap:anywhere}.prose pre{background:var(--pale);padding:16px;overflow:auto}.prose code{font-size:.85em}.prose-title{border-bottom:1px solid var(--line);max-width:900px;margin:0 auto 40px;padding-bottom:28px}.flow{flex-wrap:wrap;align-items:stretch;gap:10px;margin:22px 0;padding:0;list-style:none;display:flex}.flow li{background:var(--pale);border-top:3px solid var(--teal);flex:1;min-width:115px;padding:16px 12px;font-size:.82rem}.flow li span{color:var(--teal);margin-bottom:5px;font-family:ui-monospace,monospace;display:block}.reaction{background:var(--navy);color:#fff;text-align:center;margin-block:20px;padding:24px;font-family:ui-monospace,monospace;font-size:clamp(1rem,2.5vw,1.6rem)}.calculator{grid-template-columns:1fr 1fr;gap:28px;display:grid}.inputs{grid-template-columns:1fr 1fr;gap:16px;display:grid}.calc-result{background:var(--navy);color:#d7e6ec;padding:24px}.calc-result h3{color:#fff}.calc-result output{color:#fff;margin:10px 0;font-family:ui-monospace,monospace;font-size:2.6rem;display:block}.bar-row{grid-template-columns:100px 1fr 65px;align-items:center;gap:10px;margin:15px 0;font-size:.8rem;display:grid}.bar-track{background:#385568;height:12px}.bar-fill{background:#7dc5c6;min-width:1px;height:100%}.calc-result .meta{color:#cfdee7}.chart-key{color:var(--muted);gap:20px;font-size:.8rem;display:flex}.capacity-bars{gap:14px;margin-top:20px;display:grid}.capacity-bar{border-left:3px solid var(--teal);background:#c8dddd;height:20px}.footer{border-top:2px solid var(--navy);color:var(--muted);justify-content:space-between;gap:32px;padding-block:32px;font-size:.8rem;display:flex}.footer strong{color:var(--navy)}.footer a{margin-bottom:6px;display:block}.skip{background:var(--navy);color:#fff;z-index:100;padding:10px;position:fixed;top:-100px;left:16px}.skip:focus{top:12px}.source-link{overflow-wrap:anywhere}.issue-card{grid-template-columns:100px 1fr;align-items:start;gap:24px;display:grid}.issue-number{background:var(--navy);color:#fff;text-align:center;padding:22px;font-family:ui-monospace,monospace;font-size:1.6rem}.muted{color:var(--muted)}.visually-hidden{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.atlas-jump{flex-wrap:wrap;gap:10px;margin:24px 0 8px;display:flex}.atlas-jump a{border:1px solid var(--line);background:#fff;padding:8px 14px;font-size:.86rem;font-weight:600;text-decoration:none}.atlas-jump a:hover{border-color:var(--teal)}.atlas-jump span{color:var(--muted);margin-left:4px;font-family:ui-monospace,monospace}.atlas-stage{scroll-margin-top:20px}.atlas-lead{color:var(--muted);max-width:780px;margin-top:-6px}.atlas-card{flex-direction:column;display:flex}.atlas-card h3{margin:0 0 10px;font-size:1.3rem}.card .atlas-equation,.carbon-fate .atlas-equation{color:var(--navy);background:var(--pale);overflow-wrap:anywhere;padding:10px 12px;font-family:ui-monospace,monospace;font-size:.8rem}.atlas-facts{margin:4px 0 18px;font-size:.86rem}.atlas-facts div+div{margin-top:10px}.atlas-facts dt{color:var(--muted);text-transform:uppercase;letter-spacing:.05em;font-size:.72rem}.atlas-facts dd{margin:2px 0 0}.atlas-card-foot{border-top:1px solid var(--line);justify-content:space-between;margin-top:auto;padding-top:14px;font-size:.88rem}.atlas-metric{white-space:nowrap;display:block}td a.atlas-metric{white-space:normal}.atlas-table th[scope=row]{text-transform:none;letter-spacing:normal;background:#fff;min-width:170px;font-size:.87rem}.atlas-table th[scope=row] .meta{margin-top:4px;font-weight:400;display:block}.carbon-fate{border-left:4px solid var(--green);background:#f0f6f1;margin:24px 0;padding:18px 22px}.carbon-fate h2{color:var(--green);text-transform:uppercase;letter-spacing:.08em;margin:0 0 6px;font-size:1rem}.carbon-fate p{margin:0}.pathway-lead{font-size:1.12rem;color:var(--ink)!important}.pathway-nav{border-top:1px solid var(--line);justify-content:space-between;gap:16px;margin-top:28px;padding-top:18px;font-size:.9rem;display:flex}.pathway-nav a{font-weight:600}.pathway-nav span{color:var(--muted);text-transform:uppercase;letter-spacing:.06em;font-size:.75rem;font-weight:400;display:block}.pathway-nav .next{text-align:right;margin-left:auto}.edition-line{border-bottom:1px solid var(--line);justify-content:space-between;align-items:baseline;gap:16px;margin-bottom:32px;padding-bottom:12px;display:flex}.edition-line p{margin:0}.overview-head{grid-template-columns:1.25fr 1fr;align-items:center;gap:48px;margin-bottom:38px;display:grid}.overview-head h1{font-family:var(--editorial-font);letter-spacing:-.045em;margin:0;font-size:clamp(2.7rem,4.5vw,4.15rem);font-weight:400;line-height:1.08}.overview-head h1 em{color:var(--teal);font-weight:400}.overview-intro{max-width:430px}.overview-intro p{font-size:1rem;line-height:1.8}.text-link{font-size:.86rem;font-weight:600;text-decoration:none}.text-link span{margin-left:10px}.lead-card{flex-direction:column;align-items:flex-start;display:flex}.lead-card>p:not(.eyebrow){max-width:54ch}.lead-card .button{color:var(--navy);background:#eef5e8;border-color:#eef5e8;margin-top:14px}.lead-card .button:hover{background:#dce9d5}.focus-card{background:#eef3ed;border-color:#dce5da}.focus-card h2{font-size:1.65rem}.focus-card>a{font-size:.88rem;font-weight:600}.pathway-visual{text-align:center;margin:24px 0}.pathway-inputs{grid-template-columns:1fr 1fr;gap:12px;display:grid}.pathway-inputs>span,.pathway-output{color:var(--navy);font-variant-numeric:tabular-nums;background:#fff;border:1px solid #cddcce;border-radius:6px;padding:12px;font-size:1.4rem;font-weight:600;display:block}.pathway-visual small{color:var(--muted);font-size:.68rem;font-weight:400;display:block}.pathway-connector{color:var(--teal);justify-content:center;align-items:center;gap:12px;line-height:1.6;display:flex}.pathway-connector span{background:#b9ccbc;width:24%;height:1px}.pathway-output{background:#e0ecdd}.pathway-output>span{color:var(--muted);font-size:1rem}.overview-stats{border-block:1px solid var(--line);grid-template-columns:repeat(3,minmax(0,1fr));margin:28px 0 12px;display:grid}.overview-stats a{color:var(--navy);align-items:center;gap:18px;padding:24px;text-decoration:none;display:flex}.overview-stats a+a{border-left:1px solid var(--line)}.overview-stats strong{font-family:var(--editorial-font);font-size:2.4rem;font-weight:400;line-height:1}.overview-stats a>span{font-size:.86rem;font-weight:600}.overview-stats small{color:var(--muted);margin-top:3px;font-size:.72rem;font-weight:400;display:block}.overview-stats a>span:last-child{color:var(--teal);margin-left:auto}.overview-stats a:hover{background:var(--pale)}.issue-sections{border-top:1px solid var(--line);grid-template-columns:repeat(2,minmax(0,1fr));gap:0 28px}.issue-sections>a.card{border:0;border-bottom:1px solid var(--line);background:0 0;border-radius:0;padding:23px 4px}.issue-sections>a:hover{background:var(--pale)}.issue-sections .card-index{color:var(--muted);margin:0;font-size:.78rem}.issue-sections h3{margin:0;font-size:1rem}.project-watch td:first-child{width:25%}.project-watch td:last-child{width:43%}.project-watch tbody tr:hover,tbody tr:focus-within{background:#f6f9f5}.navigation .nav-method{gap:8px}.navigation a[aria-current]{font-weight:650}.menu-toggle{border-radius:6px;min-height:44px}.filters,.statline,.calc-result,.reaction,.atlas-jump a,.issue-number{border-radius:var(--radius)}.filters label,.field,.detail-grid>*,.calculator>*,.filters input,.filters select,.field input{min-width:0}.prose-title h1{font-family:var(--editorial-font);font-weight:400;line-height:1.17}.prose :is(h2,h3){scroll-margin-top:24px}.prose p{margin-bottom:1.3em}.prose li::marker{color:var(--teal)}.prose strong{color:var(--navy)}.prose blockquote p:last-child{margin-bottom:0}.prose-title>.eyebrow{margin-top:18px}.issue-contents a[aria-current=location]{color:var(--navy);background:var(--pale);box-shadow:-3px 0 var(--teal);font-weight:650}.issue-contents a{border-radius:3px;padding-inline:8px}@media (width<=760px){.edition-line{align-items:start;margin-bottom:24px}.edition-line .meta{text-align:right;max-width:155px;font-size:.7rem}.overview-head{grid-template-columns:1fr;gap:22px;margin-bottom:26px}.overview-intro{max-width:none}.overview-stats{grid-template-columns:1fr;margin-top:22px}.overview-stats a{padding:18px 8px}.overview-stats a+a{border-left:0;border-top:1px solid var(--line)}.overview-stats strong{min-width:42px;font-size:2rem}.project-watch table,.project-watch tbody,.project-watch tr,.project-watch td{display:block}.project-watch caption{font-size:.78rem;display:block}.project-watch thead{clip-path:inset(50%);width:1px;height:1px;position:absolute;overflow:hidden}.project-watch tr{border-top:1px solid var(--line);padding:18px}.project-watch td{border:0;padding:0;width:auto!important}.project-watch td+td{margin-top:12px}.project-watch td[data-label]:before{content:attr(data-label);color:var(--muted);text-transform:uppercase;letter-spacing:.06em;margin-bottom:4px;font-size:.65rem;font-weight:600;display:block}.project-watch td:last-child{font-size:.8rem}.project-watch td .meta{max-width:none}.section-head{flex-wrap:wrap;gap:10px;margin-top:38px}.issue-sections{grid-template-columns:1fr}.prose{font-size:1rem;line-height:1.8}.prose-title{margin-bottom:28px}}@media (width<=1000px){.navigation{gap:18px}.navigation a{font-size:.8rem}.cards{gap:14px}.hero-grid{grid-template-columns:minmax(0,1.3fr) minmax(0,1fr)}.shell{padding-inline:24px}}@media (width<=760px){.shell{padding-inline:18px}.masthead-inner{min-height:86px}.brand{gap:10px;font-size:1.2rem}.brand small{font-size:.55rem}.brand-icon{width:42px;height:42px;font-size:1.6rem}.masthead-note{display:none}.menu-toggle.enhanced{display:block}.navigation{flex-direction:column;gap:0;padding-block:10px;display:flex}.navigation.enhanced:not(.open){display:none}.navigation a{padding:11px 2px;font-size:.95rem}.navigation .nav-method{margin-left:0}.hero-grid,.cards,.cards.two,.detail-grid,.calculator{grid-template-columns:1fr}.lead-card{padding:24px}.lead-card h2{font-size:1.8rem}.filters{grid-template-columns:1fr 1fr;padding:16px}.statline{grid-template-columns:1fr 1fr}.statline>div{border-bottom:1px solid var(--line)}.footer{flex-direction:column;gap:14px}.section-head{align-items:start}.section-head h2{font-size:1.4rem}.definition-grid{grid-template-columns:1fr 1fr}.issue-card{grid-template-columns:70px 1fr;gap:16px}.issue-number{padding:14px;font-size:1.2rem}}@media (width<=400px){.filters{grid-template-columns:1fr}.filters .wide{grid-column:auto}.inputs,.definition-grid{grid-template-columns:1fr}.brand small{letter-spacing:.06em}}@media (prefers-reduced-motion:no-preference){a,button{transition:background-color .15s,color .15s}}@media print{.navigation,.nav-wrap,.menu-toggle,.footer,.filters,.skip{display:none!important}body{color:#000;background:#fff;font-size:11pt}.shell{max-width:100%;padding:0}.masthead-inner{min-height:60px}.masthead-note{display:none}main{padding-top:20px}.card,.lead-card,.calc-result,.reaction{border:1px solid #aaa;color:#000!important;background:#fff!important}.lead-card h2,.calc-result h3,.calc-result output{color:#000}.hero-grid,.detail-grid,.calculator{display:block}.prose{max-width:none}a{color:#000;text-decoration:underline}.prose a[href^=http]:after{content:" (" attr(href) ")";font-size:8pt}h2,h3{break-after:avoid}tr,.card{break-inside:avoid}.notice{background:#fff}table{font-size:9pt}}.issue-layout{grid-template-columns:224px minmax(0,740px);justify-content:center;align-items:start;gap:56px;display:grid}.issue-sidebar{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);max-height:calc(100vh - 48px);padding:20px 16px;position:sticky;top:24px;overflow-y:auto}.issue-contents summary{cursor:pointer;color:var(--navy);font-weight:650}.issue-contents ol{margin:14px 0;padding:0;list-style:none}.issue-contents li{margin-bottom:8px;font-size:.82rem;line-height:1.5}.issue-contents a{padding-block:4px;text-decoration:none;display:block}.issue-contents a:hover{text-decoration:underline}.issue-body{width:100%;min-width:0}.issue-body h2,.issue-body h3,#issue-top{scroll-margin-top:24px}.issue-sections>a{grid-template-columns:28px minmax(0,1fr) auto;align-items:center;gap:14px;text-decoration:none;display:grid}.issue-sections>a:hover{border-color:var(--teal)}.issue-sections>a>span:last-child{font-size:.8rem}.issue-card+.issue-card{margin-top:16px}@media (width<=1000px){.issue-layout{grid-template-columns:minmax(0,1fr);gap:24px}.issue-sidebar{width:100%;max-width:800px;max-height:none;margin-inline:auto;position:static}.issue-contents ol{columns:2;column-gap:24px}.issue-contents li{break-inside:avoid}}@media (width<=480px){.issue-contents ol{columns:1}}@media print{.issue-sidebar{display:none}.issue-layout{display:block}.issue-body table{table-layout:fixed;overflow-wrap:anywhere;font-size:6pt;display:table}.issue-body td,.issue-body th{padding:4px}}.project-tools{justify-content:space-between;margin-block:20px}.project-tools p{margin:0}button:disabled{cursor:default;opacity:.55}@media print{.project-tools button{display:none}}