:root{color-scheme:dark;--bg:#101e2b;--panel:#172a3a;--raised:#1e3546;--ink:#eff5f5;--muted:#b0c3ce;--line:#395060;--accent:#a7dfef;--gold:#f2c278;--deep:#0b1721;--space:24px;--radius:12px}
*{box-sizing:border-box}html{scroll-padding-top:24px}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 "Segoe UI",Calibri,Arial,sans-serif}a{color:var(--accent);text-underline-offset:4px}a:hover{color:var(--ink)}button,input{font:inherit}button,a,input,summary{-webkit-tap-highlight-color:transparent}button,summary{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--gold);outline-offset:5px}p,h1,h2,h3,dl,dd{margin:0}p{max-width:75ch}button{color:inherit}main,.site-header,.site-footer{max-width:1180px;margin:auto;padding-inline:32px}.site-header{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:104px;border-bottom:1px solid var(--line)}.brand{font-size:23px;font-weight:750;letter-spacing:-1px;text-decoration:none;color:var(--ink);white-space:nowrap}.brand>span{color:var(--accent)}.brand-icon{font-size:30px;vertical-align:middle;margin-right:8px}.site-header nav{display:flex;gap:28px;flex-wrap:wrap}.site-header nav a{font-size:14px;color:var(--muted);text-decoration:none;min-height:44px;display:inline-flex;align-items:center}.site-header nav a:hover{color:var(--ink)}.skip{position:absolute;left:24px;top:-100px;background:var(--gold);color:var(--deep);padding:12px;z-index:5}.skip:focus{top:12px}
.intro{display:grid;grid-template-columns:1fr 1fr;gap:38px;align-items:center;padding:76px 0 64px}.edition{color:var(--accent);font-size:14px;margin-bottom:20px}.intro h1{font-size:clamp(44px,5.1vw,66px);letter-spacing:-2.8px;line-height:1.07;font-weight:750}.lead{font-size:19px;line-height:1.6;margin-top:26px;color:var(--ink);max-width:47ch}.intro-detail{color:var(--muted);font-size:15px;margin-top:16px;max-width:49ch}.button{display:inline-flex;align-items:center;justify-content:center;gap:26px;min-height:48px;border-radius:6px;padding:11px 20px;text-decoration:none;font-size:14px;font-weight:650}.primary{background:var(--accent);color:var(--deep);margin-top:30px}.primary:hover{background:var(--ink);color:var(--deep)}.text-link{font-size:14px;display:inline-block;margin:20px 0 0 18px}.climb-map{padding-top:20px;min-width:0}.map-caption{display:flex;flex-direction:column;font-size:13px;color:var(--ink);gap:3px;padding-left:28px}.map-caption span+span{font-size:11px;color:var(--muted)}.climb-map svg{width:100%;overflow:visible;margin-top:28px}.grid{color:var(--line);opacity:.6}.ascent-shadow{fill:none;stroke:var(--deep);stroke-width:14}.ascent{fill:none;stroke:var(--accent);stroke-width:3}.climb-map circle{fill:var(--bg);stroke:var(--accent);stroke-width:3}.climb-map .present-dot{fill:var(--gold);stroke:var(--gold)}.climb-map text{fill:var(--muted);font-size:13px;font-family:"Segoe UI",Arial,sans-serif}.climb-map text.map-level{font-size:19px;font-weight:650;fill:var(--ink)}.climb-map text.map-now{fill:var(--gold)}.climb-map>p{font-size:13px;margin:18px 0 0 28px;color:var(--muted)}.climb-map>p strong{color:var(--ink)}
.baseline{display:grid;grid-template-columns:repeat(4,1fr);border-block:1px solid var(--line);padding-block:26px;gap:26px}.baseline>div+div{border-left:1px solid var(--line);padding-left:26px}.baseline p{font-size:12px;color:var(--muted)}.baseline strong{display:block;font-size:35px;font-weight:600;letter-spacing:-1px;margin:4px 0}.baseline strong small{font-size:20px}.baseline span{display:block;font-size:12px;color:var(--muted);line-height:1.5;max-width:24ch}.source-note{font-size:12px;color:var(--muted);margin-top:14px;max-width:none}.section-space{margin-top:100px;scroll-margin-top:26px}.section-heading{display:grid;grid-template-columns:1.2fr 1fr;gap:60px;align-items:end;margin-bottom:30px}.section-index{color:var(--accent);font-size:13px;margin-bottom:12px}.section-heading h2{font-size:clamp(28px,3.1vw,38px);line-height:1.18;letter-spacing:-1px;font-weight:650;max-width:23ch}.section-heading>p{color:var(--muted);font-size:15px;max-width:44ch}.milestone-picker{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.milestone-picker button{border:1px solid var(--line);border-radius:var(--radius) var(--radius) 0 0;background:var(--bg);padding:20px;text-align:left;min-height:128px}.milestone-picker button[aria-pressed=true]{border-color:var(--accent);background:var(--raised);box-shadow:inset 0 3px var(--accent)}.milestone-picker button:hover{background:var(--panel)}.milestone-picker span,.milestone-picker small{display:block;color:var(--muted);font-size:12px}.milestone-picker strong{display:block;font-size:25px;font-weight:600;margin:3px 0}.milestone-detail{background:var(--panel);display:grid;grid-template-columns:1.3fr 1fr;gap:60px;padding:34px;border:1px solid var(--line);border-top:0}.milestone-main>p:first-child{font-size:13px;color:var(--accent)}.milestone-main h3{font-size:26px;line-height:1.25;margin:10px 0 14px;letter-spacing:-.5px}.milestone-main p{font-size:15px;color:var(--muted)}.milestone-main .milestone-caution{font-size:12px;margin-top:20px;color:var(--gold)}.gap-numbers{display:flex;flex-direction:column;justify-content:center;gap:13px}.gap-numbers>div{display:flex;justify-content:space-between;gap:14px;align-items:baseline;border-bottom:1px solid var(--line);padding-bottom:12px}.gap-numbers span{font-size:12px;color:var(--muted);max-width:19ch}.gap-numbers strong{font-size:23px;font-weight:600;white-space:nowrap}.physical-meter{background:var(--panel);border:1px solid var(--line);border-top:0;padding:22px 34px 28px;border-radius:0 0 var(--radius) var(--radius)}.physical-meter>div{display:flex;justify-content:space-between;gap:20px;font-size:13px}.physical-meter strong{color:var(--gold)}meter{display:block;width:100%;height:20px;margin:10px 0;appearance:none;background:var(--deep);border-radius:5px;overflow:hidden}meter::-webkit-meter-bar{background:var(--deep);border:0;border-radius:5px;height:12px}meter::-webkit-meter-optimum-value{background:var(--gold)}meter::-moz-meter-bar{background:var(--gold)}.physical-meter p{font-size:12px;color:var(--muted);max-width:90ch}.scenario{display:grid;grid-template-columns:1.2fr 1fr .8fr;gap:28px;align-items:center;margin-top:28px}.scenario h3{font-size:16px}.scenario p{font-size:12px;color:var(--muted);margin-top:6px}.scenario-control label{display:flex;justify-content:space-between;gap:16px;font-size:13px}.scenario-control output{color:var(--accent);font-weight:650}input[type=range]{width:100%;min-height:44px;accent-color:var(--accent);cursor:pointer}.range-labels{display:flex;justify-content:space-between;font-size:11px;color:var(--muted);margin-top:-7px}.scenario-answer{text-align:right}.scenario-answer strong{display:block;font-size:27px;color:var(--gold)}.scenario-answer span{display:block;font-size:12px;color:var(--muted)}
.system-chain{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:20px 26px;background:var(--deep);border-radius:var(--radius);font-size:14px;margin-bottom:26px}.system-chain b{font-weight:400;color:var(--muted)}.workstreams{border-top:1px solid var(--line)}.workstreams details{border-bottom:1px solid var(--line)}.workstreams summary{display:flex;gap:22px;align-items:center;padding:25px 0;list-style:none;position:relative}.workstreams summary::-webkit-details-marker{display:none}.workstreams summary:after{content:"+";font-size:25px;color:var(--muted);margin-left:8px}.workstreams details[open] summary:after{content:"−"}.work-symbol{font-size:26px;color:var(--accent);width:38px;text-align:center;flex-shrink:0}.workstreams summary>span:nth-child(2){flex:1}.workstreams summary strong{display:block;font-size:21px;font-weight:600;line-height:1.3}.workstreams summary small{display:block;font-size:13px;color:var(--muted);margin-top:4px}.status{color:var(--accent);border:1px solid var(--line);padding:4px 9px;border-radius:4px;font-size:11px;white-space:nowrap}.status.priority{color:var(--gold)}.status.research{color:var(--muted)}.work-body{padding:0 36px 28px 60px}.work-body>p{font-size:15px;color:var(--muted);margin-bottom:16px;max-width:85ch}.work-body dl{display:grid;grid-template-columns:repeat(3,1fr);gap:25px;margin-top:25px}.work-body dt{color:var(--accent);font-size:12px;margin-bottom:6px}.work-body dd{font-size:13px;color:var(--muted)}.inline-action{display:inline-flex;align-items:center;min-height:44px;font-size:14px;margin-top:18px}.scoreboard{padding:34px;border:1px solid var(--line);border-radius:var(--radius);background:var(--deep)}.score-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.score-grid h3{font-size:16px;font-weight:600;margin-bottom:8px}.score-grid p{font-size:13px;color:var(--muted)}.score-rule{border-top:1px solid var(--line);padding-top:22px;margin-top:26px;font-size:13px;color:var(--accent);max-width:100ch}
.role-picker{display:flex;gap:10px;flex-wrap:wrap}.role-picker button{background:transparent;border:1px solid var(--line);border-radius:6px;font-size:14px;min-height:46px;padding:8px 16px}.role-picker button[aria-pressed=true]{background:var(--accent);color:var(--deep);border-color:var(--accent)}.role-picker button:hover{border-color:var(--accent)}.contribution-detail{display:grid;grid-template-columns:1fr 1fr;gap:60px;padding:32px 0}.contribution-detail>div>span{color:var(--accent);font-size:13px}.contribution-detail h3{font-size:29px;line-height:1.2;letter-spacing:-.6px;margin:10px 0 14px}.contribution-detail p{font-size:15px;color:var(--muted)}.secondary{border:1px solid var(--accent);color:var(--accent);margin-top:25px}.secondary:hover{background:var(--raised)}.contribution-detail ol{list-style:none;padding:0;margin:0}.contribution-detail li{padding:0 0 18px 20px;border-left:2px solid var(--line)}.contribution-detail li:last-child{padding-bottom:0}.contribution-detail li strong{display:block;font-size:14px;margin-bottom:5px}.contribution-detail li span{display:block;font-size:14px;color:var(--muted)}.sources{border-top:1px solid var(--line);padding-top:45px}.sources details{background:var(--panel);border-radius:8px;padding:0 22px}.sources summary{padding:18px 0;min-height:48px;font-size:15px}.method-body{padding:0 0 22px}.method-body p{font-size:14px;color:var(--muted);margin-bottom:15px;max-width:95ch}.method-body a{font-size:14px;min-height:44px;display:inline-flex;align-items:center}code{font:13px/1.6 Consolas,monospace;color:var(--ink);overflow-wrap:anywhere}.source-list{display:grid;grid-template-columns:1fr 1fr;gap:0 35px;margin-top:16px}.source-list a{padding:18px 0;border-bottom:1px solid var(--line);text-decoration:none}.source-list strong{display:block;font-size:14px;font-weight:600}.source-list span{color:var(--muted);font-size:12px}.site-footer{margin-top:90px;margin-bottom:36px;padding-top:28px;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:20px}.site-footer p{font-size:12px;color:var(--muted)}.site-footer>div{display:flex;gap:20px}.site-footer>div a{font-size:12px;min-height:44px;display:inline-flex;align-items:center}.notice{padding:18px;border-left:3px solid var(--gold);font-size:14px;color:var(--muted);margin-top:15px}
@media(min-width:1400px){.intro{padding-top:94px;padding-bottom:80px}}
@media(max-width:900px){.intro{gap:20px}.intro h1{font-size:49px}.text-link{margin-left:0;display:block}.section-heading{gap:28px}.scenario{grid-template-columns:1fr 1fr}.scenario-answer{grid-column:2;text-align:left}.milestone-detail{gap:28px;padding:26px}.baseline{gap:16px}.baseline>div+div{padding-left:16px}.baseline strong{font-size:29px}.score-grid{grid-template-columns:1fr 1fr}.status{max-width:140px;white-space:normal;text-align:center}}
@media(max-width:650px){main,.site-header,.site-footer{padding-inline:20px}.site-header{padding-block:18px;gap:8px;align-items:flex-start;flex-direction:column}.site-header nav{gap:22px}.site-header nav a{font-size:13px}.intro{grid-template-columns:1fr;padding:40px 0 30px;gap:35px}.intro h1{font-size:49px;letter-spacing:-2px}.lead{font-size:18px}.intro-detail{font-size:14px}.text-link{display:inline-flex;margin-left:0;min-height:44px;align-items:center;margin-top:12px}.climb-map{padding-top:0}.map-caption{padding-left:0}.climb-map svg{margin-top:20px}.climb-map>p{margin-left:0;font-size:12px}.baseline{grid-template-columns:1fr 1fr;gap:22px}.baseline>div+div{padding-left:0;border:0}.baseline>div:nth-child(even){padding-left:18px;border-left:1px solid var(--line)}.baseline strong{font-size:31px}.section-space{margin-top:65px}.section-heading{grid-template-columns:1fr;gap:15px;margin-bottom:24px}.section-heading h2{font-size:31px}.milestone-picker{grid-template-columns:1fr 1fr;gap:8px}.milestone-picker button{min-height:108px;border-radius:8px;padding:13px}.milestone-detail{grid-template-columns:1fr;padding:24px 20px;gap:24px;border-top:1px solid var(--line);margin-top:12px;border-radius:8px 8px 0 0}.milestone-main h3{font-size:25px}.physical-meter{padding:20px}.physical-meter>div{font-size:12px}.scenario{grid-template-columns:1fr;gap:20px}.scenario-answer{grid-column:auto;text-align:left}.system-chain{flex-wrap:wrap;justify-content:flex-start;gap:10px;font-size:12px;padding:18px}.workstreams summary{gap:12px;flex-wrap:wrap}.work-symbol{width:26px;font-size:24px}.workstreams summary strong{font-size:18px}.workstreams summary small{font-size:12px}.status{display:none}.workstreams summary:after{font-size:21px}.work-body{padding:0 0 24px 38px}.work-body dl{grid-template-columns:1fr;gap:16px}.scoreboard{padding:24px 20px}.score-grid{gap:22px}.score-grid h3{font-size:15px}.contribution-detail{grid-template-columns:1fr;gap:30px;padding-top:25px}.role-picker{display:grid;grid-template-columns:1fr 1fr;gap:8px}.role-picker button{font-size:12px;padding:8px;min-height:48px}.source-list{grid-template-columns:1fr}.site-footer{align-items:flex-start;flex-direction:column;margin-top:60px}.site-footer>div{gap:22px}}
@media(prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}button,.button{transition:background-color .15s,border-color .15s}}