/* pollution ends. v3 home: the Cleaner Air report */

/* hero */
.hero{padding:44px 0 30px;background:linear-gradient(180deg,#fff 0,#fff 55%,var(--tint) 100%)}
.hero-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:40px;align-items:center}
.hero-h{font-size:clamp(3.2rem,7.4vw,6.6rem);font-weight:800;letter-spacing:-.045em;line-height:.92;margin:0 0 20px;text-transform:lowercase}
.hero-h .stop{color:var(--green)}
.hero-sub{font-size:clamp(1.12rem,1.6vw,1.32rem);line-height:1.5;color:var(--ink2);max-width:30em}
.hero-cta{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 26px}
.outlook{border-top:2px solid var(--ink);padding-top:12px;max-width:430px}
.outlook-k{color:var(--ink3);margin:0 0 2px}
.outlook-v{font:800 2rem/1.1 var(--f-d);letter-spacing:-.02em;margin:0 0 10px;color:var(--ink);transition:color .4s}
.outlook-bar{height:10px;border-radius:999px;background:linear-gradient(90deg,var(--green),var(--sage) 45%,var(--haze) 80%,var(--amber));position:relative;margin-bottom:10px}
.outlook-bar i{position:absolute;top:50%;left:var(--pos,60%);width:20px;height:20px;margin:-10px 0 0 -10px;border-radius:50%;background:#fff;border:3px solid var(--ink);transition:left .25s var(--ease)}
.outlook-note{font-size:13.5px;line-height:1.5;color:var(--ink3);margin:0}

.sky{margin:0;--tr:.72;--in:.6;--he:.46;--sm:.56;--tot:.6;--cl:.4}
.sky-frame{position:relative;aspect-ratio:2/1;overflow:hidden;border:1px solid var(--line2);background:#E9F3F5;box-shadow:0 30px 60px -40px rgba(23,33,28,.6)}
.sky-svg{width:100%;height:100%}
.sky-dust{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;mix-blend-mode:multiply}
.sky-label{position:absolute;left:12px;top:10px;background:rgba(255,255,255,.85);padding:3px 8px;color:var(--ink)}
.sky figcaption{font-size:14px;line-height:1.5;color:var(--ink3);margin-top:10px}
.sky figcaption .mono{color:var(--green);margin-right:6px}

.hills{fill:#A9C3B8;opacity:calc(1 - var(--tot)*.5)}
.far rect{fill:#97ACA5}
.near rect{fill:#2F4A3F}
.wins rect{fill:#E8F0D6;opacity:.75}
.factory{fill:#3A4E45}
.houses{fill:#3E5A4B}
.road{fill:#39463F}
.lane{stroke:#DCE6E0;stroke-width:2;fill:none}
.trees rect{fill:#4B3E2C}
.trees circle{fill:var(--green)}
.cars circle{fill:#17211C}
.ground{fill:#CFE1D5}
.hz{transition:opacity .35s linear;pointer-events:none}
.hz-far{opacity:calc(var(--in)*.5 + var(--tot)*.3)}
.hz-mid{opacity:calc(var(--in)*.3 + var(--he)*.4)}
.hz-street{opacity:calc(var(--tr)*.9)}
.hz-smoke{opacity:calc(var(--sm)*.85)}
.hz-tint{opacity:calc(var(--tot)*.26);mix-blend-mode:multiply}
.plume{transition:opacity .35s linear;transform-box:fill-box;transform-origin:50% 100%;animation:billow 7s ease-in-out infinite alternate}
.pl-ind{fill:#9A9282;opacity:calc(var(--in)*.95)}
.pl-heat{fill:#A1978B;opacity:calc(var(--he)*.95);animation-duration:5s}
.pl-traf{fill:#7D7465;opacity:calc(var(--tr)*.9);animation-duration:2.6s}
.sun{opacity:calc(.4 + var(--cl)*.6);transition:opacity .4s}
.sun-glow{opacity:calc(.15 + var(--cl)*.85);transition:opacity .4s}
.birds{opacity:calc((var(--cl) - .55)*2.4);transition:opacity .6s}
.birds path{animation:flap 1.6s ease-in-out infinite alternate;transform-box:fill-box;transform-origin:center}
.car{animation:drive var(--d,20s) linear infinite}
.car.c1{animation-delay:-6s}.car.c2{animation-delay:-11s;animation-direction:reverse}.car.c3{animation-delay:-3s}
@keyframes drive{from{transform:translateX(-520px)}to{transform:translateX(560px)}}
@keyframes billow{from{transform:translateY(0) scale(1)}to{transform:translateY(-8px) scale(1.06)}}
@keyframes flap{from{transform:scaleY(1)}to{transform:scaleY(.55)}}

/* the console */
.console{margin-top:30px;border:1px solid var(--line2);background:#fff}
.console-h{margin:0;padding:10px 16px;border-bottom:1px solid var(--line2);color:var(--ink2);background:var(--tint)}
.layers{display:grid;grid-template-columns:repeat(4,1fr)}
.layer{padding:16px 18px 18px;border-right:1px solid var(--line);display:flex;flex-direction:column;gap:8px}
.layer:last-child{border-right:0}
.layer-top{display:flex;justify-content:space-between;align-items:baseline;gap:10px}
.layer label{font:700 1.05rem/1.2 var(--f-d);cursor:pointer}
.layer label .mono{color:var(--green);margin-right:4px}
.layer-out{font:500 11px var(--f-m);letter-spacing:.06em;text-transform:uppercase;padding:3px 8px;border-radius:999px;background:var(--tint2);color:var(--ink);white-space:nowrap}
.layer-out[data-lv="0"]{background:var(--green);color:#fff}
.layer-what{font-size:14.5px;line-height:1.5;color:var(--ink2);margin:0}
.layer-works{font-size:14.5px;line-height:1.5;margin:0;padding-top:8px;border-top:1px dashed var(--line2)}
.layer-works b{font-family:var(--f-d);color:var(--green)}
.layer-reads{display:flex;flex-direction:column;gap:4px;margin-top:2px}
.layer-reads a{font:600 14px/1.35 var(--f-d);color:var(--ink);text-decoration:underline;text-decoration-color:var(--sage);text-underline-offset:3px}
.layer-reads a:hover{color:var(--green);text-decoration-color:var(--green)}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:30px;background:transparent;cursor:pointer;margin:2px 0}
input[type=range]::-webkit-slider-runnable-track{height:8px;border-radius:999px;background:linear-gradient(90deg,var(--green),var(--sage) 45%,var(--haze))}
input[type=range]::-moz-range-track{height:8px;border-radius:999px;background:linear-gradient(90deg,var(--green),var(--sage) 45%,var(--haze))}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:24px;height:24px;margin-top:-8px;border-radius:50%;background:#fff;border:3px solid var(--ink);box-shadow:0 2px 6px rgba(0,0,0,.2)}
input[type=range]::-moz-range-thumb{width:18px;height:18px;border-radius:50%;background:#fff;border:3px solid var(--ink)}
input[type=range]:focus-visible{outline:3px solid var(--green);outline-offset:2px}

/* sections */
.sec{padding:90px 0}
.sec-head{display:grid;grid-template-columns:auto 1fr;gap:28px;align-items:start;margin-bottom:40px;border-top:1px solid var(--ink);padding-top:22px}
.sec-no{font:800 clamp(4rem,9vw,7.5rem)/.8 var(--f-d);color:transparent;-webkit-text-stroke:1.5px var(--green);letter-spacing:-.05em}
.sec-head h2{font-size:clamp(2.1rem,4.4vw,3.5rem);margin-bottom:14px;letter-spacing:-.03em}

.facts-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:48px;align-items:start}
.fact{display:grid;grid-template-columns:92px 1fr;gap:18px;padding:18px 0;border-bottom:1px solid var(--line)}
.fact:first-child{border-top:1px solid var(--line)}
.fact-tag{align-self:start;display:inline-flex;justify-content:center;padding:6px 0;border:1.5px solid var(--green);color:var(--green);border-radius:999px;font-size:12px}
.fact h3{font-size:1.24rem;margin-bottom:6px}
.fact h3 a{text-decoration:none}
.fact h3 a:hover{color:var(--green);text-decoration:underline;text-underline-offset:4px}
.fact p{font-size:15.5px;line-height:1.55;color:var(--ink2);margin:0}
.facts-media{display:flex;flex-direction:column;gap:22px;position:sticky;top:100px}
.fx{margin:0;position:relative}
.fx figcaption{font-size:13.5px;line-height:1.5;color:var(--ink3);margin-top:8px}
.fx figcaption .mono{color:var(--green);margin-right:6px}
.fx-img{width:100%;height:100%;object-fit:cover}

/* effect 1: haze lift, scrubbed by scroll (--p from 0 to 1) */
.fx-haze{--p:0;overflow:visible}
.fx-haze .fx-img{aspect-ratio:16/10;filter:sepia(calc(.7 - var(--p)*.7)) saturate(calc(.6 + var(--p)*.4)) blur(calc(5px - var(--p)*5px)) brightness(calc(1.08 - var(--p)*.08))}
.fx-haze .haze-veil{position:absolute;left:0;right:0;top:0;aspect-ratio:16/10;background:linear-gradient(180deg,rgba(201,187,160,.2),rgba(180,154,114,.75));opacity:calc(1 - var(--p));pointer-events:none}

/* effect 2: green duotone with ken burns */
.trees-panel{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:18px;align-items:center;background:var(--tint);padding:14px}
.fx-duo{overflow:hidden;aspect-ratio:1/1;background:var(--green)}
.fx-duo .fx-img{filter:grayscale(1) contrast(1.1);mix-blend-mode:multiply;animation:kenburns 26s ease-in-out infinite alternate;transition:filter .6s}
.fx-duo::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(143,168,154,.45),rgba(255,255,255,0));mix-blend-mode:screen;pointer-events:none;transition:opacity .6s}
.fx-duo:hover .fx-img,.trees-panel:focus-within .fx-img{filter:none;mix-blend-mode:normal}
.fx-duo:hover::after,.trees-panel:focus-within .fx-duo::after{opacity:0}
@keyframes kenburns{from{transform:scale(1) translate(0,0)}to{transform:scale(1.14) translate(-3%,-2%)}}
.trees-copy h3{font-size:1.2rem;margin-bottom:8px}
.trees-copy h3 a{text-decoration:none}
.trees-copy h3 a:hover{color:var(--green);text-decoration:underline}
.trees-copy p{font-size:14.5px;line-height:1.55;color:var(--ink2);margin:0}

.callout{margin-top:48px;border-left:5px solid var(--green);background:var(--tint);padding:22px 26px;max-width:860px}
.callout h3{font-size:1.5rem;margin-bottom:8px}
.callout h3 a{text-decoration:none}
.callout h3 a:hover{text-decoration:underline;text-underline-offset:4px}
.callout p:last-child{margin:0;color:var(--ink2)}
.callout--ink{background:var(--ink);border-left-color:var(--sage);color:#EEF3EF}
.callout--ink .kick{color:#B9D3C4}
.callout--ink h3{color:#fff}
.callout--ink p:last-child{color:#D5DFD9}

/* effect 3: aperture opening on scroll */
.fx-aperture{--p:0;margin-bottom:34px}
.fx-aperture .fx-vid{width:100%;aspect-ratio:21/8;object-fit:cover;background:#264536;clip-path:inset(calc(14% - var(--p)*14%) calc(26% - var(--p)*26%) round calc(200px - var(--p)*200px));transition:clip-path .15s linear}

/* evidence cards */
.deck-tools{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px;margin-bottom:22px}
.deck-status{color:var(--ink3);margin:0}
.deck{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.ev{display:flex;flex-direction:column;gap:10px;perspective:1200px}
.ev-flip{position:relative;display:block;width:100%;min-height:250px;border:0;padding:0;background:none;cursor:pointer;text-align:left;transform-style:preserve-3d;transition:transform .7s var(--ease)}
.ev-flip[aria-expanded="true"]{transform:rotateY(180deg)}
.ev-face{position:absolute;inset:0;display:flex;flex-direction:column;gap:12px;padding:20px 22px;border:1px solid var(--line2);backface-visibility:hidden;-webkit-backface-visibility:hidden}
.ev-front{background:#fff;background-image:repeating-linear-gradient(0deg,transparent 0 31px,rgba(30,107,68,.08) 31px 32px)}
.ev-back{background:var(--green);color:#fff;transform:rotateY(180deg);border-color:var(--green)}
.ev-no{color:var(--green)}
.ev-back .ev-no{color:#CFE5D8}
.ev-q{font:750 1.45rem/1.15 var(--f-d);letter-spacing:-.015em;color:var(--ink)}
.ev-a{font:400 1.02rem/1.55 var(--f-r)}
.ev-hint{margin-top:auto;color:var(--ink3);display:inline-flex;align-items:center;gap:8px}
.ev-hint::before{content:"";width:22px;height:22px;border:1.5px solid var(--ink3);border-radius:50%;background:radial-gradient(circle,var(--ink3) 0 2px,transparent 3px)}
.ev-flip:hover .ev-front{border-color:var(--green)}
.ev-flip:focus-visible{outline:none}
.ev-flip:focus-visible .ev-face{outline:3px solid var(--ink);outline-offset:3px}
.ev-link{font:650 14.5px var(--f-d);color:var(--green);text-underline-offset:3px;align-self:flex-start}
.deck.swap .ev{animation:deal .5s var(--ease) both}
.deck.swap .ev:nth-child(2){animation-delay:.05s}.deck.swap .ev:nth-child(3){animation-delay:.1s}
.deck.swap .ev:nth-child(4){animation-delay:.15s}.deck.swap .ev:nth-child(5){animation-delay:.2s}.deck.swap .ev:nth-child(6){animation-delay:.25s}
@keyframes deal{from{opacity:0;transform:translateY(16px) rotate(-1.5deg)}to{opacity:1;transform:none}}
.deck-more{margin-top:28px}

/* act */
.act{background:var(--tint)}
.act .sec-head{border-top-color:var(--ink)}
.act-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:44px;align-items:start}
.act-tool{background:#fff;border:1px solid var(--line2);padding:22px}
.act-tabs{display:inline-flex;border:1.5px solid var(--ink);border-radius:999px;padding:3px;margin-bottom:18px;flex-wrap:wrap}
.act-tabs button{border:0;background:transparent;padding:9px 18px;border-radius:999px;font:650 15px var(--f-d);cursor:pointer}
.act-tabs button[aria-selected="true"]{background:var(--ink);color:#fff}
.act-tabs button:hover:not([aria-selected="true"]){background:var(--tint)}
.act-blurb{color:var(--ink2);font-size:1.02rem}
.plan{counter-reset:plan}
.plan li{display:flex;align-items:center;gap:10px;border-top:1px solid var(--line);padding:10px 0}
.plan-i{display:flex;align-items:center;gap:12px;flex:1;cursor:pointer;font:600 1.02rem/1.3 var(--f-d)}
.plan-i input{position:absolute;opacity:0;width:1px;height:1px}
.plan-i .box{flex:none;width:24px;height:24px;border:2px solid var(--ink);border-radius:50%;display:grid;place-items:center;transition:background .2s}
.plan-i input:checked+.box{background:var(--green);border-color:var(--green)}
.plan-i input:checked+.box::after{content:"";width:10px;height:6px;border:solid #fff;border-width:0 0 2.5px 2.5px;transform:translateY(-1px) rotate(-45deg)}
.plan-i input:focus-visible+.box{outline:3px solid var(--green);outline-offset:3px}
.plan-i input:checked~.plan-t{color:var(--ink3)}
.plan-go{font:600 13px var(--f-m);letter-spacing:.06em;text-transform:uppercase;color:var(--green);padding:6px 10px;border:1px solid var(--line2);border-radius:999px;text-decoration:none}
.plan-go:hover{background:var(--green);color:#fff;border-color:var(--green)}
.plan-count{margin:14px 0 0;color:var(--ink2)}
.act-media{display:grid;gap:22px}

/* effect 4: leaf mask that grows open */
.fx-leaf{overflow:hidden;border-radius:4px 46% 4px 46%;aspect-ratio:16/10}
.js .fx-leaf .fx-img{clip-path:circle(0% at 18% 82%);transition:clip-path 1.8s var(--ease) .2s}
.js .fx-leaf.in .fx-img{clip-path:circle(140% at 18% 82%)}
.no-io .fx-leaf .fx-img{clip-path:none!important}

/* effect 5: split tone with grain, lifts on hover */
.fx-split{overflow:hidden}
.fx-split .fx-vid{width:100%;aspect-ratio:16/9;object-fit:cover;background:#264536;filter:grayscale(1) contrast(1.1);transition:filter .6s}
.fx-split::before{content:"";position:absolute;left:0;right:0;top:0;aspect-ratio:16/9;background:linear-gradient(120deg,rgba(30,107,68,.65),rgba(201,136,72,.35));mix-blend-mode:color;pointer-events:none;z-index:1;transition:opacity .6s}
.fx-split::after{content:"";position:absolute;left:0;right:0;top:0;aspect-ratio:16/9;pointer-events:none;z-index:2;opacity:.22;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");animation:grain 1s steps(4) infinite}
.fx-split:hover .fx-vid{filter:none}
.fx-split:hover::before{opacity:0}
@keyframes grain{0%{transform:translate(0,0)}25%{transform:translate(-2%,1%)}50%{transform:translate(1%,-2%)}75%{transform:translate(-1%,2%)}100%{transform:translate(0,0)}}

/* contents */
.contents-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:56px;align-items:center}
.contents h2{font-size:clamp(1.9rem,3.6vw,2.8rem);margin-bottom:22px;letter-spacing:-.03em}
.toc{margin-bottom:26px;border-top:2px solid var(--ink)}
.toc a{display:flex;align-items:baseline;gap:14px;padding:12px 0;border-bottom:1px solid var(--line);text-decoration:none}
.toc-n{color:var(--green)}
.toc-t{font:700 1.2rem var(--f-d)}
.toc-lead{flex:1;border-bottom:2px dotted var(--line2);transform:translateY(-4px)}
.toc-c{color:var(--ink2);font-size:.85rem}
.toc a:hover .toc-t{color:var(--green)}
.toc a:hover .toc-lead{border-color:var(--green)}

/* effect 6: focus pull with grain */
.fx-focus{overflow:hidden}
.fx-focus .fx-img{aspect-ratio:4/5;filter:blur(7px) saturate(.8);transform:scale(1.04);transition:filter 1.1s var(--ease),transform 1.1s var(--ease)}
.fx-focus:hover .fx-img,.fx-focus.focused .fx-img{filter:none;transform:none}
.fx-focus::after{content:"";position:absolute;left:0;right:0;top:0;aspect-ratio:4/5;pointer-events:none;opacity:.14;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}

/* method */
.method{padding-top:20px}
.method-grid{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:48px;border-top:1px solid var(--ink);padding-top:28px}
.method h2{font-size:clamp(1.7rem,3vw,2.4rem);margin-bottom:14px}
.method-copy p{color:var(--ink2);max-width:36em}
.official{background:var(--tint);padding:22px 24px;border:1px solid var(--line)}
.official p{color:var(--ink2);font-size:15.5px}
.official-small{font-size:13.5px!important;margin:0}

@media (max-width:1100px){
  .layers{grid-template-columns:1fr 1fr}
  .layer:nth-child(2){border-right:0}
  .layer:nth-child(-n+2){border-bottom:1px solid var(--line)}
}
@media (max-width:980px){
  .hero-grid,.facts-grid,.act-grid,.contents-grid,.method-grid{grid-template-columns:1fr}
  .facts-media{position:static}
  .deck{grid-template-columns:1fr 1fr}
  .fx-focus .fx-img,.fx-focus::after{aspect-ratio:16/10}
}
@media (max-width:720px){
  .hero{padding-top:26px}
  .hero-grid{gap:24px}
  .sky-frame{aspect-ratio:4/3}
  .layers{grid-template-columns:1fr}
  .layer{border-right:0;border-bottom:1px solid var(--line)}
  .layer:last-child{border-bottom:0}
  .sec{padding:60px 0}
  .sec-head{grid-template-columns:1fr;gap:6px}
  .sec-no{font-size:3.6rem}
  .deck{grid-template-columns:1fr}
  .ev-flip{min-height:220px}
  .trees-panel{grid-template-columns:1fr}
  .fx-duo{aspect-ratio:16/10}
  .fact{grid-template-columns:1fr;gap:8px}
  .fact-tag{justify-self:start;padding:5px 12px}
  .fx-aperture .fx-vid{aspect-ratio:16/10}
  .act-tool{padding:16px}
  .act-tabs button{padding:8px 13px}
  .plan-go{display:none}
  .toc-t{font-size:1.05rem}
}
@media (prefers-reduced-motion:reduce){
  .fx-haze .fx-img{filter:none}.fx-haze .haze-veil{opacity:0}
  .fx-aperture .fx-vid{clip-path:none}
  .fx-leaf .fx-img{clip-path:none!important}
  .fx-focus .fx-img{filter:none;transform:none}
  .ev-flip{transform:none!important}
  .ev-back{transform:none;opacity:0}
  .ev-flip[aria-expanded="true"] .ev-back{opacity:1}
  .ev-flip[aria-expanded="true"] .ev-front{opacity:0}
}