:root{
  --paper:#f4f1e8;
  --paper-2:#ebe7dc;
  --ink:#141817;
  --muted:#606964;
  --faint:#89918d;
  --rule:rgba(20,24,23,.16);
  --rule-soft:rgba(20,24,23,.09);
  --teal:#3f756f;
  --teal-dark:#285d58;
  --teal-pale:#d7e1dd;
  --rust:#a7663d;
  --sans:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  --serif:"Newsreader",Georgia,serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --max:1440px;
  --gutter:clamp(22px,4.2vw,72px);
  --section-space:clamp(92px,12vw,190px);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
body::before{content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;background-image:linear-gradient(to right,rgba(63,117,111,.045) 1px,transparent 1px),linear-gradient(to bottom,rgba(63,117,111,.045) 1px,transparent 1px);background-size:32px 32px}
body::after{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background:linear-gradient(90deg,rgba(244,241,232,.88),rgba(244,241,232,.42) 50%,rgba(244,241,232,.88))}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
::selection{background:var(--teal);color:#fff}
:focus-visible{outline:2px solid var(--teal);outline-offset:4px}
.skip-link{position:fixed;left:16px;top:-60px;z-index:1000;background:var(--ink);color:var(--paper);padding:10px 14px;font:12px var(--mono);transition:top .2s}
.skip-link:focus{top:16px}

.site-header{position:fixed;top:0;left:0;right:0;z-index:50;display:flex;align-items:flex-start;justify-content:space-between;padding:20px var(--gutter);mix-blend-mode:normal;background:linear-gradient(var(--paper) 0%,rgba(244,241,232,.92) 70%,rgba(244,241,232,0));transition:padding .25s ease}
.brand{display:flex;align-items:center;gap:14px;border:0}
.brand-mark{width:38px;height:38px;display:grid;place-items:center;border:1px solid var(--ink);font:500 11px var(--mono);letter-spacing:.08em}
.brand-meta{font:10px/1.45 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.site-nav{display:flex;gap:24px;padding-top:9px}
.site-nav a{position:relative;font:10px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);transition:color .2s}
.site-nav a::after{content:"";position:absolute;left:0;right:100%;bottom:-5px;height:1px;background:var(--teal);transition:right .25s}
.site-nav a:hover,.site-nav a.active{color:var(--ink)}
.site-nav a.active::after{right:0}
.nav-toggle{display:none;border:0;background:none;font:10px var(--mono);letter-spacing:.12em;text-transform:uppercase;padding:10px 0}

.section-shell{width:min(100%,var(--max));margin:0 auto;padding-left:var(--gutter);padding-right:var(--gutter)}
.hero{min-height:100svh;display:grid;grid-template-columns:minmax(0,1fr);grid-template-rows:1fr auto;gap:56px;padding-top:clamp(120px,18vh,190px);padding-bottom:36px;align-items:center}
.hero-copy{max-width:980px;padding-bottom:3vh}
.kicker,.section-number,.path-label,.work-type,.instrument-id,.elsewhere-id,.latest-kicker{font:10px var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
h1,h2,h3,p{margin-top:0}
h1{font-family:var(--serif);font-weight:400;font-size:clamp(4.6rem,10vw,9.8rem);letter-spacing:-.062em;line-height:.76;margin:28px 0 42px}
.surname{font:inherit;letter-spacing:inherit;color:inherit;cursor:text}
.hero-lede{font-family:var(--serif);font-size:clamp(1.55rem,2.5vw,2.55rem);line-height:1.08;letter-spacing:-.025em;max-width:25ch;margin-bottom:48px}
.hero-status{display:grid;grid-template-columns:1fr 1fr;gap:22px 34px;max-width:720px;border-top:1px solid var(--rule);padding-top:18px}
.hero-status p{margin:0;display:grid;grid-template-columns:72px 1fr;gap:10px;font-size:12px;color:var(--muted)}
.label{font:9px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--faint);padding-top:2px}
.hero-foot{border-top:1px solid var(--rule);padding-top:16px;display:grid;grid-template-columns:1fr 1fr auto;gap:20px;font:10px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.hero-foot a{color:var(--teal-dark)}

.section{padding-top:var(--section-space);padding-bottom:var(--section-space);scroll-margin-top:70px}
.section-intro{display:grid;grid-template-columns:minmax(150px,.48fr) minmax(0,1.15fr) minmax(250px,.72fr);gap:30px 5vw;align-items:start;margin-bottom:clamp(58px,8vw,110px)}
.section-intro h2{font-family:var(--serif);font-size:clamp(2.5rem,4.8vw,5.4rem);font-weight:400;letter-spacing:-.045em;line-height:.96;margin:0}
.section-intro>p:last-child{font-size:14px;line-height:1.7;color:var(--muted);max-width:42ch;margin:8px 0 0}
.section-intro.narrow{grid-template-columns:minmax(150px,.42fr) minmax(0,1fr) minmax(250px,.72fr)}
.section-intro.compact{margin-bottom:52px}

.work-list{border-top:1px solid var(--ink)}
.work-item{display:grid;grid-template-columns:54px minmax(0,1fr) minmax(210px,.34fr);gap:20px 4vw;padding:34px 0 38px;border-bottom:1px solid var(--rule);transition:background .25s,padding .25s}
.work-item:hover{background:rgba(255,255,255,.18);padding-left:14px;padding-right:14px}
.work-index{font:10px var(--mono);color:var(--faint);padding-top:4px}
.work-main h3{font-family:var(--serif);font-size:clamp(1.8rem,3vw,3.25rem);font-weight:400;letter-spacing:-.032em;line-height:1.04;margin:7px 0 14px;max-width:23ch}
.work-main p:last-child{font-size:14px;color:var(--muted);max-width:60ch;margin-bottom:0}
.work-side{align-self:end;display:flex;flex-direction:column;gap:24px;align-items:flex-start}
.micro-stats{display:flex;flex-wrap:wrap;gap:6px}.micro-stats span,.model-tag{border:1px solid var(--rule);padding:5px 8px;font:9px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.arrow-link,.link-pair a{font:10px var(--mono);letter-spacing:.07em;text-transform:uppercase;color:var(--teal-dark);border-bottom:1px solid var(--teal-pale);padding-bottom:3px}
.arrow-link span{display:inline-block;margin-left:7px;transition:transform .2s}.arrow-link:hover span{transform:translate(3px,-3px)}
.big-stat{display:flex;align-items:baseline;gap:10px}.big-stat strong{font-family:var(--serif);font-size:3rem;font-weight:400;letter-spacing:-.04em}.big-stat span{font:9px var(--mono);color:var(--muted);text-transform:uppercase;max-width:90px}
.link-pair{display:flex;gap:14px;flex-wrap:wrap}

.path-section{padding-bottom:calc(var(--section-space) + 30px)}
.path-grid{display:grid;grid-template-columns:1fr 1fr;gap:8vw;border-top:1px solid var(--ink)}
.path-column{padding-top:18px}
.path-label{margin-bottom:18px}
.timeline{list-style:none;padding:0;margin:0}
.timeline li{display:grid;grid-template-columns:88px 1fr;gap:18px;padding:20px 0;border-top:1px solid var(--rule-soft)}
.timeline li:first-child{border-top:0}
.timeline time{font:10px var(--mono);color:var(--faint);padding-top:4px}
.timeline h3{font-family:var(--serif);font-size:1.3rem;font-weight:400;line-height:1.18;margin:0 0 5px}
.timeline p{font-size:12px;color:var(--muted);margin:0;max-width:44ch}

.observatory{background:var(--ink);color:#e8e7df;position:relative;overflow:hidden}
.observatory::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(232,231,223,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(232,231,223,.045) 1px,transparent 1px);background-size:32px 32px;pointer-events:none}
.observatory .section-shell{position:relative}
.observatory .section-number,.observatory .section-intro>p:last-child{color:#9fa7a3}
.observatory-intro{grid-template-columns:minmax(150px,.48fr) minmax(0,1fr) minmax(260px,.72fr)}
.instrument-grid{display:grid;grid-template-columns:1.35fr .9fr;gap:1px;background:rgba(232,231,223,.18);border:1px solid rgba(232,231,223,.18)}
.instrument{background:var(--ink);min-height:420px;padding:24px;display:flex;flex-direction:column}
.n2o-instrument{grid-row:span 2;min-height:841px}
.instrument-head{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;border-bottom:1px solid rgba(232,231,223,.14);padding-bottom:16px}
.instrument-id{color:#838d88;display:block;margin-bottom:6px}
.instrument-head h3{font-family:var(--serif);font-size:1.65rem;font-weight:400;margin:0}
.live-dot{font:9px var(--mono);letter-spacing:.09em;text-transform:uppercase;color:#9fa7a3;display:flex;gap:7px;align-items:center;padding-top:7px}.live-dot i{width:6px;height:6px;background:#7faaa0;border-radius:50%;box-shadow:0 0 0 4px rgba(127,170,160,.08)}
.n2o-readout{margin:58px 0 30px}.n2o-readout>div{display:flex;align-items:flex-end;gap:14px}.n2o-readout strong{font-family:var(--serif);font-size:clamp(5rem,9vw,9rem);font-weight:400;letter-spacing:-.07em;line-height:.75}.n2o-readout span{font:12px var(--mono);color:#9fa7a3;margin-bottom:10px}.n2o-readout p{font:10px var(--mono);letter-spacing:.05em;color:#9fa7a3;margin:22px 0 0}
.sparkline{width:100%;height:auto;margin:auto 0;overflow:visible}.sparkline .grid{stroke:rgba(232,231,223,.08);stroke-width:1}.sparkline .line{fill:none;stroke:#79a89f;stroke-width:2;vector-effect:non-scaling-stroke}.sparkline .dot{fill:#e8e7df}.sparkline text{fill:#78817d;font:9px var(--mono)}
.instrument-foot{display:flex;justify-content:space-between;gap:12px;margin-top:auto;padding-top:16px;border-top:1px solid rgba(232,231,223,.14);font:9px var(--mono);letter-spacing:.07em;text-transform:uppercase;color:#838d88}.instrument-foot a{color:#b7d0ca}
.city-switch{display:flex;gap:3px}.city-switch button{border:1px solid rgba(232,231,223,.18);background:transparent;color:#8e9893;padding:6px 9px;font:9px var(--mono);cursor:pointer}.city-switch button.active{background:#e8e7df;color:var(--ink);border-color:#e8e7df}
.instrument-note{font:10px var(--mono);color:#8f9894;margin:24px 0 30px}
.air-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:rgba(232,231,223,.12);margin:0}
.air-grid>div{background:var(--ink);padding:17px 0}.air-grid dt{font:9px var(--mono);text-transform:uppercase;letter-spacing:.1em;color:#76807b}.air-grid dd{font-family:var(--serif);font-size:2.5rem;letter-spacing:-.035em;margin:5px 0 0}.air-grid small{font:9px var(--mono);color:#7d8782}
.air-line{height:3px;background:rgba(232,231,223,.1);margin:30px 0}.air-line span{display:block;height:100%;width:0;background:#79a89f;transition:width .7s ease}
.model-tag{color:#97a09c;border-color:rgba(232,231,223,.18)}
.climate-instrument{min-height:420px}.climate-empty{margin:auto 0;text-align:left}.climate-empty>p{font-family:var(--serif);font-size:1.45rem;line-height:1.25;max-width:28ch;color:#d4d5cf}
.outline-button{border:1px solid rgba(232,231,223,.3);background:transparent;color:#e8e7df;padding:11px 14px;font:10px var(--mono);letter-spacing:.07em;text-transform:uppercase;cursor:pointer;transition:background .2s,color .2s}.outline-button:hover{background:#e8e7df;color:var(--ink)}
.preset-row{display:flex;gap:9px;align-items:center;margin-top:15px;color:#65706a}.preset-row button{border:0;background:none;color:#8ea59f;padding:0;font:9px var(--mono);text-transform:uppercase;cursor:pointer}
.climate-result{margin:auto 0}.climate-coord{font:9px var(--mono);letter-spacing:.09em;color:#89938e;margin-bottom:30px;text-transform:uppercase}.climate-compare{display:grid;grid-template-columns:1fr auto 1fr;gap:12px;align-items:end}.climate-compare>div:not(.climate-arrow){display:grid}.climate-compare span{font:9px var(--mono);color:#7f8984}.climate-compare strong{font-family:var(--serif);font-size:3.4rem;font-weight:400;line-height:1;margin-top:8px}.climate-compare small{font:9px var(--mono);color:#7f8984}.climate-arrow{padding-bottom:22px;color:#74817c}.climate-delta{font:10px var(--mono);color:#b5d0c9;margin:26px 0 0}.climate-caveat{font:9px/1.55 var(--mono);color:#65706a;margin:22px 0 0}

.latest-note{border-top:1px solid var(--ink);border-bottom:1px solid var(--rule);padding:28px 0;display:grid;grid-template-columns:minmax(120px,.34fr) 1fr auto;gap:28px;align-items:start}
.latest-body a{font-family:var(--serif);font-size:clamp(1.7rem,3vw,3rem);line-height:1.08;letter-spacing:-.025em;max-width:30ch;display:inline-block}.latest-body a:hover{color:var(--teal-dark)}
.latest-body p{font:10px var(--mono);color:var(--faint);margin:12px 0 0}.latest-arrow{font-family:var(--serif);font-size:2.5rem;color:var(--teal)}

.elsewhere-grid{display:grid;grid-template-columns:1fr 1fr 1fr;border-top:1px solid var(--ink)}
.elsewhere-grid article{padding:28px 26px 20px 0;border-right:1px solid var(--rule);min-height:280px}.elsewhere-grid article+article{padding-left:26px}.elsewhere-grid article:last-child{border-right:0;padding-right:0}.elsewhere-grid h3{font-family:var(--serif);font-size:2.1rem;font-weight:400;margin:38px 0 14px}.elsewhere-grid p{font-size:13px;line-height:1.7;color:var(--muted);max-width:36ch}.elsewhere-grid a{font:10px var(--mono);color:var(--teal-dark);border-bottom:1px solid var(--teal-pale);padding-bottom:3px}

.contact-section{padding-bottom:34px}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:10vw;border-top:1px solid var(--ink);padding-top:40px}.contact-grid h2{font-family:var(--serif);font-size:clamp(4rem,8vw,8rem);font-weight:400;line-height:.85;letter-spacing:-.055em;margin:0 0 30px}.contact-grid>div>p{color:var(--muted);font-size:14px;max-width:43ch}.contact-links{border-top:1px solid var(--rule)}.contact-links a{display:grid;grid-template-columns:90px 1fr auto;gap:12px;padding:20px 0;border-bottom:1px solid var(--rule);align-items:baseline}.contact-links span{font:9px var(--mono);color:var(--faint);text-transform:uppercase}.contact-links strong{font-size:13px;font-weight:400}.contact-links i{font-style:normal;color:var(--teal)}
footer{margin-top:110px;border-top:1px solid var(--rule);padding-top:16px;display:flex;justify-content:flex-start;gap:20px;font:9px var(--mono);text-transform:uppercase;letter-spacing:.08em;color:var(--faint)}

.heart-burst{position:fixed;z-index:100;pointer-events:none;width:58px;height:58px;transform:translate(-50%,-90%)}.heart-burst path{fill:none;stroke:var(--teal);stroke-width:1.4}
.research-rail{display:none}

@media(min-width:1101px){
  .research-rail{position:fixed;right:var(--gutter);top:50%;transform:translateY(-43%);z-index:8;width:min(16vw,210px);display:block;pointer-events:none;color:var(--muted);transition:color .3s ease}
  .rail-rule{height:1px;background:var(--ink);opacity:.24;margin-bottom:16px}
  .rail-kicker{font:8px var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--faint);margin:0 0 26px}
  .rail-current{display:grid;grid-template-columns:34px 1fr;gap:12px;align-items:baseline}
  .rail-number{font:9px var(--mono);color:var(--faint)}
  .rail-current strong{font-family:var(--serif);font-size:1.55rem;font-weight:400;line-height:1;letter-spacing:-.025em;color:var(--ink)}
  .rail-note{font:10px/1.65 var(--mono);letter-spacing:.035em;color:var(--muted);margin:18px 0 0;padding-left:46px}
  .rail-live{margin:34px 0 0 46px;padding-top:13px;border-top:1px solid var(--rule)}
  .rail-live>span{font:8px var(--mono);letter-spacing:.11em;text-transform:uppercase;color:var(--faint)}
  .rail-live div{margin:7px 0 2px;display:flex;align-items:baseline;gap:5px}
  .rail-live strong{font-family:var(--serif);font-size:2.3rem;line-height:1;font-weight:400;color:var(--ink);letter-spacing:-.04em}
  .rail-live small,.rail-live em{font:8px var(--mono);font-style:normal;color:var(--faint)}
  .rail-coord{display:flex;justify-content:space-between;gap:10px;margin-top:48px;padding-top:10px;border-top:1px solid var(--rule-soft);font:8px var(--mono);letter-spacing:.08em;color:var(--faint)}
  main > .section.section-shell,.observatory .section-shell,.hero.section-shell{padding-right:calc(var(--gutter) + min(16vw,210px) + 5vw)}
  body[data-active-section="observatory"] .research-rail{color:#9fa7a3}
  body[data-active-section="observatory"] .rail-rule{background:#e8e7df}
  body[data-active-section="observatory"] .rail-kicker,body[data-active-section="observatory"] .rail-number,body[data-active-section="observatory"] .rail-note,body[data-active-section="observatory"] .rail-live>span,body[data-active-section="observatory"] .rail-live small,body[data-active-section="observatory"] .rail-live em,body[data-active-section="observatory"] .rail-coord{color:#89938e}
  body[data-active-section="observatory"] .rail-current strong,body[data-active-section="observatory"] .rail-live strong{color:#e8e7df}
  body[data-active-section="observatory"] .rail-live,body[data-active-section="observatory"] .rail-coord{border-color:rgba(232,231,223,.14)}
}

@media(max-width:980px){
  .site-nav{gap:14px}.site-nav a{font-size:9px}
  .hero{grid-template-columns:1fr;grid-template-rows:auto auto;min-height:auto;padding-top:150px}.hero-copy{padding-bottom:0}.hero-foot{grid-template-columns:1fr 1fr}.hero-foot a{grid-column:1/-1}
  .section-intro,.section-intro.narrow,.observatory-intro{grid-template-columns:130px 1fr}.section-intro>p:last-child{grid-column:2}
  .work-item{grid-template-columns:42px 1fr}.work-side{grid-column:2;display:grid;grid-template-columns:1fr auto;align-items:end;width:100%}
  .instrument-grid{grid-template-columns:1fr}.n2o-instrument{grid-row:auto;min-height:650px}.instrument{min-height:390px}
  .elsewhere-grid{grid-template-columns:1fr}.elsewhere-grid article,.elsewhere-grid article+article{padding:26px 0;border-right:0;border-bottom:1px solid var(--rule);min-height:0}.elsewhere-grid article:last-child{border-bottom:0}
}

@media(max-width:700px){
  :root{--gutter:20px;--section-space:90px}
  .site-header{padding-top:14px}.brand-meta{display:none}.brand-mark{width:34px;height:34px}.nav-toggle{display:block}.site-nav{position:absolute;top:58px;left:var(--gutter);right:var(--gutter);display:none;flex-direction:column;gap:0;background:var(--paper);border:1px solid var(--rule);padding:7px 14px}.site-nav.open{display:flex}.site-nav a{padding:12px 0;border-bottom:1px solid var(--rule-soft)}.site-nav a:last-child{border-bottom:0}.site-nav a::after{display:none}
  .hero{padding-top:115px;gap:48px}.kicker{margin-bottom:20px}h1{font-size:clamp(4.8rem,25vw,7.5rem);line-height:.72;margin:0 0 40px}.hero-lede{font-size:1.55rem}.hero-status{grid-template-columns:1fr}.hero-status p{grid-template-columns:68px 1fr}.hero-foot{grid-template-columns:1fr;gap:9px}.hero-foot a{grid-column:auto;margin-top:9px}
  .section-intro,.section-intro.narrow,.observatory-intro{grid-template-columns:1fr;gap:18px}.section-intro>p:last-child{grid-column:auto}.section-intro h2{font-size:clamp(2.6rem,14vw,4.3rem)}
  .work-item{grid-template-columns:32px 1fr;padding:26px 0}.work-item:hover{padding-left:0;padding-right:0;background:transparent}.work-side{display:flex;grid-column:2;align-items:flex-start}.work-main h3{font-size:2rem}
  .path-grid{grid-template-columns:1fr;gap:60px}.timeline li{grid-template-columns:76px 1fr}
  .instrument{padding:20px}.n2o-instrument{min-height:560px}.n2o-readout{margin:42px 0 22px}.n2o-readout strong{font-size:25vw}.air-grid dd{font-size:2rem}.climate-compare strong{font-size:2.7rem}
  .latest-note{grid-template-columns:1fr auto}.latest-kicker{grid-column:1/-1}.latest-arrow{grid-column:2;grid-row:2}.latest-body{grid-column:1;grid-row:2}
  .contact-grid{grid-template-columns:1fr;gap:50px}.contact-links a{grid-template-columns:70px 1fr auto}.contact-links strong{font-size:11px;overflow-wrap:anywhere}footer{flex-direction:column;margin-top:80px}
}

@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}