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:root{--ink:#0e171c;--basalt:#152229;--basalt-2:#1c2d35;--basalt-line:#2b3f48;--mist:#f3f5f4;--paper:#fff;--rule:#d9e0e1;--rule-strong:#b9c5c8;--text:#16232a;--text-2:#3e5059;--survey-text:#56666e;--on-dark:#eef3f2;--on-dark-2:#a9bcc2;--geothermal:#1e7f74;--geothermal-dark:#145c54;--steam:#7fd6c8;--signal:#e3b23c;--thermal:#b23a48;--thermal-light:#f08c98;--survey:#6b7c85;--basalt-legacy:#22303a;--white:#fff;--font-sans:var(--font-inter), system-ui, sans-serif;--font-display:var(--font-newsreader), "Iowan Old Style", Georgia, serif;--font-mono:var(--font-plex-mono), ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;--step--1:.875rem;--step-0:1rem;--step-1:1.125rem;--step-2:1.5rem;--step-3:clamp(1.9rem, 1.4rem + 1.8vw, 2.6rem);--step-4:clamp(2.6rem, 1.8rem + 3.2vw, 4rem);--step-5:clamp(3.2rem, 2rem + 5vw, 5.75rem);--measure:66ch;--page:78rem;--gutter:clamp(1rem, .6rem + 1.8vw, 2rem);--radius:6px;--section-pad:clamp(4rem, 2.5rem + 6vw, 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var(--font-display);fill:var(--steam)}.trail-report-title{font:400 15px var(--font-display);fill:var(--ink)}.trail-rule{fill:var(--rule-strong)}.trail-footnote{font:600 9.5px var(--font-sans);fill:var(--geothermal-dark)}@supports (animation-timeline:view()){@media (prefers-reduced-motion:no-preference){.trail-path{stroke-dasharray:1;animation:linear both trail-draw;animation-timeline:view();animation-range:entry 25% cover 50%}@keyframes trail-draw{0%{stroke-dashoffset:1px}to{stroke-dashoffset:0}}}}.trail{counter-reset:step;grid-template-columns:repeat(5,minmax(0,1fr));gap:1rem;margin:3rem 0 0;padding:0;list-style:none;display:grid;position:relative}.trail:before{content:"";z-index:0;background:var(--basalt-line);height:1px;position:absolute;top:2.35rem;left:1rem;right:1rem}.trail li{z-index:1;border:1px solid var(--basalt-line);background-color:var(--basalt-2);border-radius:12px;padding:1.25rem 1.25rem 1.5rem;position:relative}.trail li:before{counter-increment:step;content:counter(step);background:var(--basalt);border:1px solid var(--steam);width:2.2rem;height:2.2rem;color:var(--steam);font-family:var(--font-display);border-radius:50%;place-items:center;margin-bottom:1rem;font-size:1.15rem;display:grid}.trail h3{font-size:var(--step-1);font-family:var(--font-sans);color:var(--on-dark);margin:0 0 .6rem;font-weight:600}.trail p{font-size:var(--step--1);color:var(--on-dark-2);overflow-wrap:anywhere;margin:0 0 .5rem}.trail .fact{color:var(--on-dark)}@media (max-width:64rem){.trail{grid-template-columns:1fr}.trail:before{width:1px;height:auto;inset:1rem auto 1rem 2.35rem}}.citation-card{border:1px solid color-mix(in srgb, var(--steam) 40%, var(--basalt-line));background:var(--basalt-2);border-radius:12px;gap:1rem;margin-top:3rem;padding:1.25rem 1.5rem;display:grid}.citation-card blockquote{font-size:var(--step-0);color:var(--on-dark);max-width:110ch;margin:0;line-height:1.65}.citation-card .button.secondary{justify-self:start}.coverage{grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(1.5rem,1rem + 2vw,3rem);margin-top:3rem;display:grid}@media (max-width:64rem){.coverage{grid-template-columns:1fr}}.coverage h3{margin:0 0 .35rem}.coverage .sub{font-size:var(--step--1);color:var(--survey-text);min-height:2.6em;margin:0 0 1.25rem}.index{margin:0;padding:0;list-style:none}.index li{border-bottom:1px solid var(--rule);justify-content:space-between;align-items:baseline;gap:1rem;padding:.6rem 0;font-size:.95rem;display:flex}.index li a{color:var(--text);text-decoration:none}.index li a:hover{color:var(--geothermal-dark);text-decoration:underline}.index .v{font-variant-numeric:tabular-nums;white-space:nowrap;color:var(--text-2)}.index .v small{color:var(--survey-text);margin-left:.2rem}.tabs [role=tablist]{border-bottom:1px solid var(--basalt-line);flex-wrap:wrap;gap:.25rem;margin-bottom:0;display:flex}.tabs [role=tab]{font:inherit;color:var(--on-dark-2);cursor:pointer;background:0 0;border:0;border-bottom:2px solid #0000;margin-bottom:-1px;padding:.8rem 1rem;font-size:.95rem}.tabs [role=tab]:hover{color:var(--on-dark)}.tabs [role=tab][aria-selected=true]{color:var(--on-dark);border-bottom-color:var(--steam)}.tabs [role=tabpanel]{grid-template-columns:minmax(0,7fr) minmax(0,4fr);gap:2.5rem;padding-top:2rem;display:grid}@media (max-width:60rem){.tabs [role=tabpanel]{grid-template-columns:1fr;gap:1.25rem}}.window{border:1px solid var(--basalt-line);background:#0a1216;border-radius:10px;overflow:hidden}.window-bar{border-bottom:1px solid var(--basalt-line);font-size:var(--step--1);color:var(--on-dark-2);justify-content:space-between;align-items:center;gap:1rem;padding:.6rem 1rem;display:flex}.window pre{background:0 0;border-radius:0;min-height:14rem;margin:0;font-size:.85rem}.tok-k{color:var(--steam)}.tok-s{color:#f3d58a}.tok-c{color:#7f949b}.tab-copy h3{font-size:var(--step-2);color:var(--on-dark);margin-top:0}.tab-copy p{color:var(--on-dark-2)}.timeline{margin:3.5rem 0 1rem;padding-top:2.5rem;position:relative}.timeline-axis{background:var(--rule-strong);height:2px;position:absolute;top:2.5rem;left:0;right:0}.timeline-progress{background:var(--geothermal);height:2px;position:absolute;top:2.5rem;left:0}.timeline-today{font-size:var(--step--1);color:var(--geothermal-dark);justify-items:center;gap:.35rem;font-weight:600;display:grid;position:absolute;top:0;transform:translate(-50%)}.timeline-today:after{content:"";background:var(--geothermal);width:12px;height:12px;box-shadow:0 0 0 5px color-mix(in srgb, var(--geothermal) 18%, transparent);border-radius:50%;margin-top:.35rem}.milestones{grid-template-columns:repeat(4,minmax(0,1fr));gap:2rem;margin:0;padding:0;list-style:none;display:grid;position:relative}.milestones li{padding-top:2.25rem;position:relative}.milestones li:before{content:"";background:var(--paper);border:2px solid var(--text);border-radius:50%;width:14px;height:14px;position:absolute;top:-.45rem;left:0}.milestones .year{font-family:var(--font-display);font-size:var(--step-4);line-height:1;display:block}.milestones .who{margin:.6rem 0 .35rem;font-weight:600;display:block}.milestones p{color:var(--survey-text);font-size:var(--step--1);margin:0}@media (max-width:52rem){.timeline-axis,.timeline-progress,.timeline-today{display:none}.timeline{padding-top:0}.milestones{border-left:2px solid var(--rule-strong);grid-template-columns:1fr;padding-left:1.5rem}.milestones li{padding-top:0}.milestones li:before{top:.6rem;left:calc(-1.5rem - 8px)}}.rules{counter-reset:rule;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 clamp(2rem,1rem + 4vw,5rem);margin:3rem 0 0;padding:0;list-style:none;display:grid}@media (max-width:52rem){.rules{grid-template-columns:1fr}}.rules li{border-top:1px solid var(--rule);grid-template-columns:3.5rem 1fr;gap:.25rem 1.25rem;padding:2rem 0;display:grid}.rules li:before{counter-increment:rule;content:counter(rule, decimal-leading-zero);font-family:var(--font-display);font-size:var(--step-3);color:var(--geothermal);grid-row:span 2;line-height:1}.rules h3{font-size:var(--step-2);margin:0}.rules p{color:var(--text-2);margin:0}.closing{position:relative;overflow:hidden}.closing-mark{right:max(var(--gutter), calc((100% - var(--page)) / 2 + var(--gutter)));width:min(34vw,26rem);height:auto;color:var(--basalt-line);opacity:.9;position:absolute;top:50%;transform:translateY(-50%)}@media (max-width:60rem){.closing-mark{display:none}}.closing .display{font-size:var(--step-5);max-width:16ch}@supports (animation-timeline:view()){@media (prefers-reduced-motion:no-preference){.reveal{animation:linear both rise;animation-timeline:view();animation-range:entry entry 35%}@keyframes rise{0%{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}}}.window-bar .button{padding:.3rem .75rem;font-size:.8rem;font-weight:600}.citation-card .button{justify-self:start}.bar-row .bar-head{flex-wrap:wrap}@media (max-width:40rem){.site-header .container{gap:.25rem 1rem}.site-nav{scrollbar-width:none;width:100%;overflow-x:auto;-webkit-mask-image:linear-gradient(90deg,#000 82%,#0000);mask-image:linear-gradient(90deg,#000 82%,#0000)}.site-nav ul{white-space:nowrap;flex-wrap:nowrap;gap:1.1rem;padding-bottom:.25rem}.site-nav li:has(.button){display:none}}.about{background:var(--paper);border-bottom:1px solid var(--rule)}.about .display{font-size:var(--step-5);max-width:14ch}.about-intro{align-items:center;gap:2rem;display:grid}@media (min-width:60rem){.about-intro{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(2rem,1rem + 3vw,4rem)}}.balance-art{color:var(--rule);margin:0}@media (max-width:60rem){.balance-art{max-width:30rem}}.balance-art svg{width:100%;height:auto;display:block;overflow:visible}.balance-lattice{color:var(--rule)}.balance-ink,.balance-bowl{fill:var(--text)}.balance-hub{fill:var(--text);stroke:var(--text)}.balance-string{fill:none;stroke:var(--text);stroke-width:2px;stroke-linecap:round}.balance-accent{fill:var(--signal);stroke:var(--signal);stroke-width:1.5px}.balance-carbon polygon{fill:var(--geothermal);stroke:var(--paper);stroke-width:2px}.balance-weight{font-family:var(--font-display);fill:var(--text);font-size:30px}.balance-caption{font-family:var(--font-sans);fill:var(--survey-text);font-size:13px}.balance-notes path{fill:none;stroke:var(--geothermal);stroke-width:1px}.balance-notes text{font-family:var(--font-mono);letter-spacing:.12em;fill:var(--geothermal-dark);font-size:11px}.balance-beam,.balance-pan{transform-box:view-box;transform-origin:280px 175px}@supports (animation-timeline:view()){@media (prefers-reduced-motion:no-preference){.balance-beam,.balance-pan-left,.balance-pan-right{animation-timing-function:ease-out;animation-fill-mode:both;animation-timeline:view();animation-range:entry 10% cover 45%}.balance-beam{animation-name:balance-tip}.balance-pan-left{animation-name:balance-left}.balance-pan-right{animation-name:balance-right}@keyframes balance-tip{0%{transform:rotate(6deg)}55%{transform:rotate(-1.5deg)}80%{transform:rotate(.5deg)}to{transform:rotate(0)}}@keyframes balance-left{0%{transform:translateY(-21px)}55%{transform:translateY(5.2px)}80%{transform:translateY(-1.7px)}to{transform:translateY(0)}}@keyframes balance-right{0%{transform:translateY(21px)}55%{transform:translateY(-5.2px)}80%{transform:translateY(1.7px)}to{transform:translateY(0)}}}}.about-head .lede{max-width:50ch;color:var(--text);font-size:clamp(1.15rem,1rem + .6vw,1.4rem)}.about-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:0 clamp(1.5rem,1rem + 2vw,3rem);margin-top:clamp(3rem,2rem + 3vw,5rem);display:grid}@media (max-width:64rem){.about-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:40rem){.about-grid{grid-template-columns:1fr}}.about-grid h3{font-family:var(--font-sans);font-size:var(--step-0);letter-spacing:0;margin:0 0 .75rem;font-weight:700}.about-grid p{color:var(--text-2);margin:0}.roadmap{border:1px solid var(--rule);background:var(--mist);border-radius:10px;grid-template-columns:repeat(3,minmax(0,1fr));margin-top:2rem;display:grid}.roadmap>div{padding:1.5rem 1.75rem}.roadmap>div+div{border-left:1px solid var(--rule)}.roadmap .when{font-family:var(--font-display);font-size:var(--step-2);color:var(--geothermal-dark);margin-bottom:.6rem;line-height:1;display:block}.roadmap p{font-size:var(--step--1);color:var(--text-2);margin:0}@media (max-width:52rem){.roadmap{grid-template-columns:1fr}.roadmap>div+div{border-left:0;border-top:1px solid var(--rule)}}.visually-hidden{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}@property --fx-a{syntax:"<number>";inherits:false;initial-value:0}.fx-card{--fx-glow:30 127 116;background-image:radial-gradient(26rem circle at var(--mx,50%) var(--my,0%), rgb(var(--fx-glow) / calc(.12 * var(--fx-a))), transparent 62%);transition:--fx-a .35s,translate .3s cubic-bezier(.2,.8,.2,1),box-shadow .3s,border-color .3s,background-color .3s;position:relative}.fx-card:hover,.fx-card:focus-within{--fx-a:1}@media (hover:hover) and (pointer:fine) and (prefers-reduced-motion:no-preference){.fx-card:hover{translate:0 -4px}}.band.dark .fx-card,.band.basalt .fx-card{--fx-glow:127 214 200}.about-grid section.fx-card,.coverage section.fx-card,.rules li.fx-card{border:1px solid var(--rule);background-color:#fbfcfb;border-radius:12px;padding:1.5rem 1.5rem 1.75rem}.about-grid section.fx-card:hover,.coverage section.fx-card:hover,.rules li.fx-card:hover{border-color:color-mix(in srgb, var(--geothermal) 45%, var(--rule));background-color:var(--paper);box-shadow:0 24px 48px -28px #0e171c66}.about-grid{row-gap:1.25rem}.rules{gap:1.25rem clamp(1.25rem,.75rem + 2vw,2rem)}.rules li.fx-card{padding:1.75rem 1.5rem}.coverage .index li{border-radius:6px;transition:background-color .2s}.coverage .index li:hover{background-color:color-mix(in srgb, var(--geothermal) 7%, transparent)}.trail li.fx-card:hover{border-color:color-mix(in srgb, var(--steam) 55%, var(--basalt-line))}.trail li.fx-card:before{transition:background-color .3s,color .3s,box-shadow .3s}.trail li.fx-card:hover:before{background:var(--steam);color:var(--ink);box-shadow:0 0 0 6px #7fd6c826}.citation-card.fx-card:hover{border-color:var(--steam)}.fx-tilt .ticket{transform:perspective(1100px) rotate(-1.5deg) rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg));will-change:transform;transition:transform .45s cubic-bezier(.2,.8,.2,1),box-shadow .45s}.fx-tilt:hover .ticket{transition-duration:.12s,.45s;box-shadow:inset 0 1px #fff9,0 40px 80px -24px #0009,0 16px 30px -14px #00000073}.hero-sources a{transition:opacity .15s,translate .25s cubic-bezier(.2,.8,.2,1)}@media (hover:hover) and (prefers-reduced-motion:no-preference){.hero-sources a:hover{translate:0 -2px}}@media (max-width:64rem){.fx-tilt .ticket{transform:none}}.num,.pg-big .num,.gap-facts dt,.multiple{font-variant-numeric:lining-nums tabular-nums}