/* Layout: full-bleed pinned visuals with paper cards scrolling over them, in the manner of long-form scrollytelling.
   Colour: warm paper beige, deep water teal, reed-ochre accent. Type: Playfair Display headings, Merriweather text. */
:root{
  --bg:#FFFFFF; --bg2:#F8FBF9; --ink:#101915; --muted:#4A5C52; --line:#DDE5E0;
  --card:#FFFFFF; --water:#126030; --accent:#126030; --accent-fill:#008045; --on-accent:#FFFFFF;
  --stage1:#FFFFFF; --stage2:#E6EEE9; --chip:#FFFFFFE6; --chip-ink:#101915;
  --f-display:"Playfair Display",Georgia,"Times New Roman",serif;
  --f-body:"Source Sans 3","Segoe UI",system-ui,-apple-system,sans-serif;
  --f-ui:"Source Sans 3","Segoe UI",system-ui,-apple-system,sans-serif;
  --gutter:clamp(16px,4vw,40px); --vh:100vh; --deep:#062617; color-scheme:light;
}
@supports (height:100svh){:root{--vh:100svh}}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:400 1.125rem/1.7 var(--f-body);-webkit-font-smoothing:antialiased;overflow-x:clip}
h1,h2,h3{font-family:var(--f-display);font-weight:700;line-height:1.1;margin:0;text-wrap:balance}
h2{font-size:clamp(1.7rem,3.4vw,2.5rem);margin-bottom:.55em}
h3{font-size:1.35rem}
p{margin:0 0 1em}
a{color:var(--water)}
:focus-visible{outline:3px solid var(--accent-fill);outline-offset:2px;border-radius:4px}
.eyebrow{font:700 .72rem/1 var(--f-ui);letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin:0 0 16px}

/* fixed header + progress */
.bar{position:fixed;inset:0 0 auto 0;z-index:50;display:flex;justify-content:space-between;align-items:center;gap:12px;padding:10px var(--gutter);font:600 .72rem/1 var(--f-ui);letter-spacing:.12em;text-transform:uppercase;color:#fff;mix-blend-mode:normal;pointer-events:none;background:linear-gradient(#0b1a1ccc,#0b1a1c00)}
.prog{position:fixed;left:0;top:0;height:3px;width:100%;z-index:60;background:var(--accent-fill);transform-origin:0 50%;transform:scaleX(0)}

/* hero */
.hero{position:relative;height:var(--vh);min-height:520px;overflow:hidden;background:#0d2a30;color:#fff}
.hero svg{position:absolute;inset:0;width:100%;height:100%}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,#071417b0 0%,#07141755 45%,#07141799 100%)}
.hero .in{position:absolute;inset:0;z-index:2;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:0 var(--gutter)}
.hero h1{font-size:clamp(3rem,10vw,7.4rem);letter-spacing:-.01em;margin:0 0 .25em;text-shadow:0 2px 30px #0008}
.hero .sub{max-width:34em;font-size:clamp(1.02rem,2vw,1.3rem);color:#EAF1EC;text-shadow:0 1px 14px #000a}
.hero .eyebrow{color:#FFD27A}
.cue{position:absolute;z-index:2;left:50%;bottom:26px;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:8px;font:600 .72rem/1 var(--f-ui);letter-spacing:.2em;text-transform:uppercase;color:#fff}
.cue i{width:14px;height:14px;border-right:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(45deg);animation:cue 1.8s ease-in-out infinite}
@keyframes cue{0%,100%{transform:translateY(0) rotate(45deg);opacity:.5}50%{transform:translateY(7px) rotate(45deg);opacity:1}}

/* pinned visuals with scrolling cards */
.pin{position:relative}
.pin .stage{position:sticky;top:0;height:var(--vh);overflow:hidden;background:#0d2a30}
.pin .stage svg{display:block;width:100%;height:100%}
.pin .stage::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#07141770,#07141700 55%);pointer-events:none}
.meter{position:absolute;z-index:2;left:var(--gutter);bottom:18px;right:var(--gutter);display:flex;align-items:center;gap:12px;font:600 .72rem/1 var(--f-ui);letter-spacing:.1em;text-transform:uppercase;color:#fff;text-shadow:0 1px 6px #0009}
.meter .track{position:relative;flex:1;max-width:260px;height:2px;background:#fff6}
.meter .dot{transition:left .9s ease;position:absolute;top:50%;left:0;width:12px;height:12px;border-radius:50%;background:var(--accent-fill);transform:translate(-50%,-50%)}
.steps{position:relative;margin-top:calc(var(--vh) * -1);z-index:3;pointer-events:none}
.step{min-height:var(--vh);display:flex;align-items:center;padding:6vh clamp(16px,7vw,110px)}
.step.mid{justify-content:center}
.card{pointer-events:auto;width:min(480px,100%);background:var(--card);color:var(--ink);padding:clamp(22px,3vw,34px);border-radius:3px;box-shadow:0 18px 50px -18px #000a;border-top:4px solid var(--accent-fill)}
.card.wide{width:min(760px,100%);text-align:center;padding:clamp(28px,5vw,56px)}
.card .big{font:700 clamp(3.6rem,11vw,7rem)/1 var(--f-display);color:var(--water);margin:.05em 0 .1em}
.card p:last-child{margin-bottom:0}
.card .lede{font-size:1.12rem;font-weight:400}
.src{font:400 .76rem/1.4 var(--f-ui);color:var(--muted)}

/* stats */
.stats{background:var(--bg2);padding:clamp(48px,8vw,96px) var(--gutter)}
.stats .wrap,.wrap{max-width:1100px;margin-inline:auto}
.stats .grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:36px 32px;text-align:center}
.stat .n{font:700 clamp(2.6rem,6vw,4rem)/1 var(--f-display);color:var(--water);font-variant-numeric:tabular-nums}
.stat .n small{font-size:.38em;margin-left:.2em;color:var(--ink)}
.stat p{margin:.7em auto 0;font-size:.95rem;max-width:22em}
.stats .src{text-align:center;margin-top:32px}

/* 3D geo section */
.geo{position:relative}
.gstage{position:sticky;top:0;height:var(--vh);overflow:hidden;background:radial-gradient(120% 100% at 30% 30%,var(--stage1),var(--stage2))}
#map3d{position:absolute;inset:0;touch-action:pan-y;cursor:grab}
#map3d.drag{cursor:grabbing}
#map3d canvas{display:block;width:100%;height:100%}
.nogl{display:flex;align-items:center;justify-content:center;padding:24px;text-align:center;color:var(--muted)}
.lbls{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.lbl{position:absolute;left:0;top:0;white-space:nowrap;font:600 .7rem/1 var(--f-ui);letter-spacing:.03em;color:#2c3a33;background:#ffffffb3;padding:3px 7px;border-radius:99px;transition:opacity .3s;will-change:transform}
.lbl.river{font-style:italic;color:#0d5a73}
.lbl.site{background:#F5B02E;color:#241700;font-size:.76rem;padding:4px 9px}
.lbl.mtn{background:#4a4033cc;color:#fff}
.lbl.city{background:#00000055;color:#fff;font-weight:500}
.chips{position:absolute;left:var(--gutter);right:var(--gutter);top:46px;display:flex;flex-wrap:wrap;gap:8px;z-index:4;justify-content:flex-end}
.chip{appearance:none;font:600 .8rem/1 var(--f-ui);color:var(--chip-ink);background:var(--chip);border:1px solid var(--line);border-radius:999px;padding:10px 14px;min-height:40px;cursor:pointer;display:inline-flex;align-items:center;gap:8px;backdrop-filter:blur(6px)}
.chip i{width:11px;height:11px;border-radius:50%;background:var(--c);opacity:.35;border:2px solid var(--c)}
.chip[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.chip[aria-pressed="true"] i{opacity:1}
.chip.follow{border-style:dashed}
.chip[hidden]{display:none}
.sitebar{position:absolute;z-index:4;right:var(--gutter);bottom:18px;display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end;max-width:min(560px,60%);transition:opacity .4s}
.sbtn{appearance:none;font:600 .78rem/1 var(--f-ui);color:var(--chip-ink);background:var(--chip);border:1px solid var(--line);border-radius:8px;padding:10px 12px;min-height:40px;cursor:pointer}
.sbtn[aria-pressed="true"]{background:var(--accent-fill);border-color:var(--accent-fill);color:var(--on-accent)}
.legend{position:absolute;z-index:4;right:var(--gutter);bottom:72px;width:min(250px,40%);font:400 .74rem/1.45 var(--f-ui);color:var(--ink);background:var(--chip);border:1px solid var(--line);border-radius:10px;padding:10px 12px;backdrop-filter:blur(6px)}
.legend ul{list-style:none;margin:0;padding:0;display:grid;gap:6px}
.legend li{display:grid;grid-template-columns:12px 1fr;gap:8px;align-items:start}
.legend li i{width:12px;height:12px;border-radius:3px;margin-top:2px;background:var(--c)}
.geo .steps{margin-top:calc(var(--vh) * -1)}
.dcard{pointer-events:auto;position:absolute;z-index:4;left:var(--gutter);bottom:18px;width:min(460px,calc(100% - 2*var(--gutter)));background:var(--card);padding:16px 20px;border-radius:3px;box-shadow:0 14px 40px -16px #000a;border-top:4px solid var(--accent-fill);opacity:0;visibility:hidden;transition:opacity .4s}
.dcard.on{opacity:1;visibility:visible}
.dcard h3{font-size:1.15rem;margin-bottom:.3em}
.dcard p{font-size:.88rem;line-height:1.6;margin:.4em 0 0}
.nums{display:flex;flex-wrap:wrap;gap:4px 24px;font:400 .78rem/1.3 var(--f-ui);color:var(--muted)}
.nums b{display:block;font:700 1.25rem/1.1 var(--f-display);color:var(--ink)}
.caveat{font:400 .8rem/1.5 var(--f-ui);color:var(--muted);max-width:1100px;margin:0 auto;padding:18px var(--gutter) 0}

/* closing */
.close{max-width:1100px;margin-inline:auto;padding:clamp(56px,10vw,110px) var(--gutter)}
.close .cols{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px clamp(24px,5vw,64px)}
.acts{list-style:none;margin:0;padding:0;display:grid;gap:18px}
.acts li{border-top:2px solid var(--accent-fill);padding-top:14px;font-size:.95rem}
.acts b{font:700 1.2rem var(--f-display);display:block;margin-bottom:2px}
footer{border-top:1px solid var(--line);max-width:1100px;margin-inline:auto;padding:28px var(--gutter) 56px;font:400 .8rem/1.6 var(--f-ui);color:var(--muted)}
footer p{max-width:80ch}

[data-r]{opacity:0;transform:translateY(18px);transition:opacity .7s,transform .7s}
[data-r].in{opacity:1;transform:none}

@media (max-width:860px){
  .step{align-items:flex-end;padding:0 12px 14px}
  .card{width:100%;padding:18px 20px;max-height:46vh;overflow:auto}
  .card.wide{padding:20px}
  .pin .stage::after{background:linear-gradient(0deg,#071417aa,#07141700 60%)}
  .legend{display:none}
  .chips{justify-content:flex-start;top:44px;gap:6px}
  .chip{padding:8px 11px;min-height:38px;font-size:.74rem}
  .sitebar{left:12px;right:12px;max-width:none;justify-content:flex-start;top:134px;bottom:auto}
  .sbtn{padding:8px 10px;min-height:36px;font-size:.72rem}
  .dcard{left:12px;width:calc(100% - 24px);bottom:auto;top:182px}
  .dcard.def{display:none}
  .bar span:last-child{display:none}
  .close .cols{grid-template-columns:minmax(0,1fr)}
  .meter{bottom:calc(46vh + 20px);display:none}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}[data-r]{opacity:1;transform:none;transition:none}.cue i{animation:none}}

/* ===== diorama integration overrides ===== */
:root{--t1:#FFFFFF;--t2:#F6FAF7;--t3:#EAF4EE}
.bar{color:var(--ink);background:var(--bg);border-bottom:1px solid var(--line);padding-block:11px}
.dhost{position:absolute;inset:0}
.dhost canvas{display:block;width:100%;height:100%}
.pin.dio .stage{background:var(--bg)}
.pin.dio .stage::after{display:none}
.meter{color:var(--muted);text-shadow:none;left:0;right:0;justify-content:center;bottom:22px;font-weight:400;letter-spacing:.04em;text-transform:none;font-size:.78rem}
.meter .track{background:var(--line);max-width:90px;flex:none;width:90px}
.step.lead{align-items:center}
.hero-t{max-width:520px}
.hero-t h1{font-size:clamp(2.7rem,6.4vw,4.9rem);line-height:1.04;margin:0 0 .35em}
.hero-t .sub{font:700 clamp(1.05rem,1.8vw,1.35rem)/1.4 var(--f-display);margin-bottom:1em}
.hero-t .small{font-size:.9rem;line-height:1.7;color:var(--muted);max-width:44ch}
.hero-t .byline{margin:20px 0 0;font-size:.82rem;line-height:1.45;color:var(--muted);letter-spacing:.02em}
.hero-t .byline b{display:block;color:var(--ink,#16382a);font-size:.95rem;letter-spacing:0;margin-top:2px}
.hero-t .byline span{display:block}
.hero-t .cue{position:static;transform:none;color:var(--muted);align-items:flex-start;margin-top:26px}
.hero-t .cue i{border-color:var(--muted);margin-left:2px}
.card{border-top-width:0;border-radius:2px;box-shadow:0 1px 0 var(--line),0 24px 60px -30px #0007}
.stats{background:var(--card)}
/* compare */
.cmp{background:var(--bg);padding:clamp(56px,9vw,110px) var(--gutter)}
.cmp-in{max-width:860px;margin-inline:auto;text-align:center}
#ringSvg{width:100%;height:auto;display:block;overflow:visible}
.cmp h2{font-size:clamp(1.6rem,3.6vw,2.6rem);font-weight:500;margin:.3em auto .35em;max-width:20em}
.cmp-sub{font-size:.85rem;color:var(--muted);max-width:60ch;margin:0 auto 1.4em}
.cmp-sel{max-width:100%;flex-wrap:wrap;justify-content:center;display:inline-flex;gap:12px;align-items:center;font:400 .9rem var(--f-body);color:var(--muted)}
.cmp-sel select{max-width:100%;font:400 .9rem var(--f-body);color:var(--ink);background:var(--card);border:1px solid var(--ink);border-radius:8px;padding:8px 34px 8px 12px;min-height:40px}
/* case studies */
.cs{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);background:var(--card)}
.cs-stage{position:sticky;top:0;height:var(--vh);background:var(--bg);overflow:hidden}
.cs-cap{position:absolute;left:0;right:0;bottom:56px;text-align:center;font:600 .78rem/1.2 var(--f-ui);color:var(--ink);pointer-events:none}
.cs-cap span{display:inline-block;background:var(--card);padding:7px 14px;border-radius:99px;box-shadow:0 1px 6px #0002}
.cs-cap em{font-style:normal;font-weight:400;color:var(--muted);margin-left:6px}
.dots{position:absolute;left:0;right:0;bottom:24px;display:flex;justify-content:center;gap:8px}
.dots i{width:7px;height:7px;border-radius:50%;background:var(--line);transition:background .3s,transform .3s}
.dots i.on{background:var(--ink);transform:scale(1.35)}
.cs-list{padding:clamp(40px,8vh,90px) clamp(20px,5vw,72px) 14vh;max-width:760px}
.cs-head{margin-bottom:12vh}
.cs-head h2{margin-bottom:.4em}
.cs-item{min-height:78vh;padding-block:6vh;border-top:1px solid var(--line)}
.cs-item h3{font:700 clamp(1.5rem,2.6vw,2.1rem)/1.15 var(--f-display);margin-bottom:.7em}
.chipsrow{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:1.4em}
.chipsrow .lab{flex-basis:100%;font:700 .66rem/1 var(--f-ui);letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.eco{appearance:none;font:600 .78rem/1 var(--f-ui);color:var(--ink);background:var(--bg2);border:1px solid var(--line);border-radius:99px;padding:9px 14px;min-height:38px;cursor:pointer}
.eco[aria-pressed="true"]{background:var(--accent-fill);border-color:var(--accent-fill);color:var(--on-accent)}
.facts{display:grid;gap:10px;margin:0 0 1.4em;font:400 .8rem/1.4 var(--f-ui)}
.facts dt{font-weight:700;font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.facts dd{margin:2px 0 0;font-size:.9rem}
/* closing */
.close{background:var(--card);padding:clamp(56px,9vw,110px) var(--gutter)}
.cl-in{max-width:640px;margin-inline:auto;text-align:center}
.cl-in h2{font-weight:500}
.cl-in p{max-width:none;font-size:.95rem}
.tiles{list-style:none;margin:36px auto 0;padding:0;max-width:760px;display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px}
.tiles li{border-radius:14px;padding:22px 20px;font-size:.9rem;line-height:1.55;text-align:center;color:var(--ink)}
.tiles b{display:block;font:700 1.25rem/1.2 var(--f-display);margin-bottom:.4em}
.tiles .t1{background:var(--t1)}.tiles .t2{background:var(--t2)}.tiles .t3{background:var(--t3)}
@media (max-width:860px){
  .bar span:last-child{display:none}
  .hero-t{padding-bottom:0}
  .step.lead{align-items:flex-end;padding:0 16px 5vh}
  .hero-t h1{font-size:2.6rem}
  .hero-t .sub{font-size:1rem;margin-bottom:.6em}
  .hero-t .small{font-size:.82rem;line-height:1.55}
  .hero-t .cue{margin-top:14px}
  .cs{display:block}
  .cs-stage{height:40svh;z-index:5}
  .cs-cap{bottom:34px}.dots{bottom:12px}
  .cs-list{padding-inline:20px}
  .cs-item{min-height:62vh}
  .meter{bottom:calc(var(--vh) * .5 + 10px);display:none}
}

.stats{background:var(--bg2)}
.cs{background:var(--bg)}
.cs-stage{background:var(--bg2)}
.close{background:var(--bg)}
.card{box-shadow:0 1px 0 var(--line),0 24px 60px -30px #062617aa;border:1px solid var(--line)}
.pin.dio .stage{background:var(--bg2)}
.eyebrow{letter-spacing:.18em}
h1,h2,h3{letter-spacing:-.005em}

.pin.dio .stage,.cs-stage{background:var(--bg)}
.stats{border-block:1px solid var(--line)}
.tiles li{border:1px solid var(--line)}
.card{box-shadow:0 1px 0 var(--line),0 18px 44px -28px #0626178c}
.chip,.sbtn{border-color:var(--line)}
.chip[aria-pressed="true"]{background:var(--accent-fill);border-color:var(--accent-fill);color:#fff}
.chip[aria-pressed="true"] i{background:#fff;border-color:#fff}
.dots i.on{background:var(--accent-fill)}

/* ===== liquid glass ===== */
.card,.dcard,.legend,.chip,.sbtn,.cs-cap span{
  -webkit-backdrop-filter:blur(20px) saturate(1.7) brightness(1.04);backdrop-filter:blur(20px) saturate(1.7) brightness(1.04);
}
.card{position:relative;isolation:isolate;border-radius:26px;border:1px solid rgba(255,255,255,.75);
  background:linear-gradient(135deg,rgba(255,255,255,.62),rgba(255,255,255,.34) 55%,rgba(235,247,240,.42));
  box-shadow:inset 0 1.5px 0 rgba(255,255,255,.95),inset 0 -1px 0 rgba(255,255,255,.35),inset 1px 0 0 rgba(255,255,255,.5),0 1px 2px rgba(6,38,23,.08),0 24px 60px -22px rgba(6,38,23,.38);
  padding:clamp(24px,3vw,36px)}
.card::before{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;z-index:-1;
  background:radial-gradient(120% 70% at 12% 0%,rgba(255,255,255,.75),transparent 55%),linear-gradient(180deg,transparent 60%,rgba(0,128,69,.07))}
.card .eyebrow{color:#0b5a2e}
.dcard,.legend{border-radius:20px;border:1px solid rgba(255,255,255,.75);background:linear-gradient(135deg,rgba(255,255,255,.7),rgba(255,255,255,.4));box-shadow:inset 0 1.5px 0 rgba(255,255,255,.9),0 18px 44px -20px rgba(6,38,23,.35)}
.chip,.sbtn{background:rgba(255,255,255,.55);border:1px solid rgba(255,255,255,.8);box-shadow:inset 0 1px 0 rgba(255,255,255,.95),0 6px 18px -8px rgba(6,38,23,.3)}
.chip[aria-pressed="true"],.sbtn[aria-pressed="true"]{background:rgba(0,128,69,.88);border-color:rgba(255,255,255,.5);color:#fff}
.cs-cap span{background:rgba(255,255,255,.6);border:1px solid rgba(255,255,255,.85);box-shadow:inset 0 1px 0 #fff,0 8px 22px -10px rgba(6,38,23,.3)}
.bar{background:rgba(255,255,255,.7);-webkit-backdrop-filter:blur(18px) saturate(1.6);backdrop-filter:blur(18px) saturate(1.6)}
.tiles li{background:linear-gradient(135deg,rgba(255,255,255,.8),rgba(228,242,233,.55));border:1px solid rgba(255,255,255,.9);box-shadow:inset 0 1.5px 0 #fff,0 18px 40px -24px rgba(6,38,23,.35);border-radius:22px}
@media (max-width:860px){.card{border-radius:22px;background:linear-gradient(135deg,rgba(255,255,255,.78),rgba(255,255,255,.55))}}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){.card,.dcard,.legend{background:var(--card)}}
/* keep Punjab step cards clear of the detail card on short screens */
@media (min-width:861px){.geo .step{align-items:flex-start;padding-top:clamp(64px,11vh,120px)}.geo .step .card{max-width:min(440px,100%)}}
@media (min-width:861px) and (max-height:700px){.geo .step .card{padding:14px 18px}.geo .step .card h2{font-size:1.5rem}.geo .step .card p{font-size:.92rem;line-height:1.5}.dcard{padding:12px 16px}.dcard p{font-size:.82rem;line-height:1.5}}
.geo .step .card{transition:opacity .35s}.geo.dc .step .card{opacity:0;pointer-events:none}
/* district picker under the map */
.cmp-pick{display:flex;align-items:center;justify-content:center;gap:10px;margin:6px auto 34px}
.cmp-pick .cmp-sel{display:flex;flex-direction:column;align-items:stretch;gap:3px;padding:8px 18px 9px;border-radius:16px;border:1px solid rgba(255,255,255,.8);background:linear-gradient(135deg,rgba(255,255,255,.85),rgba(230,240,234,.65));box-shadow:inset 0 1.5px 0 #fff,0 12px 30px -16px rgba(6,38,23,.4);min-width:min(260px,60vw);text-align:left}
.cmp-sel span{font:700 .64rem/1 var(--f-ui);letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
.cmp-pick select{appearance:none;-webkit-appearance:none;border:0;background:transparent url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='9' viewBox='0 0 14 9'%3E%3Cpath d='M1 1l6 6 6-6' fill='none' stroke='%23126030' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat right 2px center;font:600 1.15rem/1.3 var(--f-display);color:var(--ink);padding:2px 26px 2px 0;min-height:0;cursor:pointer;width:100%;outline:none;border-radius:0}
.cmp-pick:focus-within .cmp-sel{box-shadow:0 0 0 3px rgba(0,128,69,.35),0 12px 30px -16px rgba(6,38,23,.4)}
.cmp-nav{appearance:none;width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--accent);font-size:1.15rem;cursor:pointer;box-shadow:0 6px 16px -10px rgba(6,38,23,.5);transition:background .2s,color .2s}
.cmp-nav:hover{background:var(--accent-fill);color:#fff;border-color:var(--accent-fill)}
@media (max-width:520px){.cmp-nav{width:38px;height:38px}.cmp-pick{gap:6px}}
.rothint{position:absolute;z-index:4;left:50%;top:78px;transform:translateX(-50%);font:600 .74rem/1 var(--f-ui);letter-spacing:.06em;color:var(--muted);padding:8px 14px;border-radius:99px;background:rgba(255,255,255,.65);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.85);pointer-events:none;transition:opacity .5s;white-space:nowrap}
@media (max-width:860px){.rothint{display:none}}
/* site photographs */
.ph{margin:0 0 1.3em;border-radius:18px;overflow:hidden;box-shadow:0 18px 40px -22px rgba(6,38,23,.5);background:#e9efeb;position:relative}
.ph img{display:block;width:100%;aspect-ratio:16/10;object-fit:cover}
.ph figcaption{position:absolute;left:12px;bottom:12px;font:600 .72rem/1 var(--f-ui);letter-spacing:.04em;color:#fff;padding:7px 11px;border-radius:99px;background:rgba(10,30,20,.45);backdrop-filter:blur(8px)}
.dspin{position:absolute;left:50%;top:50%;width:34px;height:34px;margin:-17px 0 0 -17px;border-radius:50%;border:3px solid rgba(0,128,69,.18);border-top-color:#008045;animation:dsp 1s linear infinite;pointer-events:none}
@keyframes dsp{to{transform:rotate(360deg)}}
/* animated district documentary */
.cmp-cap{min-height:3.2em;margin:4px auto 10px;max-width:34em;font:600 clamp(1.05rem,2.2vw,1.35rem)/1.35 var(--f-display);color:var(--ink);opacity:0;transform:translateY(6px);transition:opacity .5s,transform .5s}
.cmp-cap.on{opacity:1;transform:none}
.cmp-prog{position:relative;height:6px;max-width:520px;margin:0 auto 16px;border-radius:99px;background:rgba(16,25,21,.1);cursor:pointer;--p:0%}
.cmp-prog::before{content:"";position:absolute;inset:0 auto 0 0;width:var(--p);border-radius:inherit;background:linear-gradient(90deg,#126030,#3FA6C0)}
.cmp-prog::after{content:"";position:absolute;top:-6px;bottom:-6px;left:0;right:0}
.cmp-ctl{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-bottom:18px}
.cbtn{appearance:none;font:600 .8rem/1 var(--f-ui);color:var(--accent);padding:10px 15px;border-radius:99px;border:1px solid rgba(255,255,255,.85);background:linear-gradient(135deg,rgba(255,255,255,.85),rgba(230,240,234,.6));box-shadow:inset 0 1.5px 0 #fff,0 8px 20px -12px rgba(6,38,23,.45);cursor:pointer;transition:background .2s,color .2s}
.cbtn:hover,.cbtn[aria-pressed="true"]{background:var(--accent-fill);color:#fff}
.cmp h2{margin-top:.2em}

@media (max-width:860px){.pin.dio .card{max-height:36vh;padding:14px 16px}.pin.dio .card h2{font-size:1.35rem;margin-bottom:6px}.pin.dio .card p{font-size:.9rem;line-height:1.5}.geo .step .card{max-height:34vh;padding:14px 16px}.geo .step .card h2{font-size:1.35rem}.geo .step .card p{font-size:.9rem;line-height:1.5}.chips{gap:5px}.chip{padding:6px 9px;min-height:32px;font-size:.7rem}}
@media (max-width:860px){.sitebar{top:128px!important}.dcard{top:176px}}
@media (max-width:860px){.chips{top:46px!important}.sitebar{top:132px!important}}
@media (max-width:860px){
 .pin .step,.geo .step{padding:0!important}
 .pin .card,.geo .step .card,.card{width:100%;border:0!important;box-shadow:none!important;-webkit-backdrop-filter:none!important;backdrop-filter:none!important;border-radius:0!important;
   background:linear-gradient(180deg,rgba(255,255,255,0) 0,rgba(255,255,255,.92) 26px,var(--bg) 64px)!important;padding:56px 22px 22px!important;max-height:40vh;overflow:auto}
 .pin.dio .card h2,.geo .step .card h2{font-size:1.5rem;text-align:center}
 .pin .card .eyebrow{text-align:center}
 .pin.dio .card p,.geo .step .card p{text-align:center;font-size:.95rem;font-family:"Playfair Display",Georgia,serif;line-height:1.55}
}
@media (max-width:860px){.dhint{display:none!important}}
@media (max-width:860px){.hero-t{padding:0 20px;box-sizing:border-box;max-width:none}.hero-t h1{font-size:2.3rem}}
.view3d{position:absolute;z-index:5;right:12px;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:6px;padding:6px;border-radius:18px;background:rgba(255,255,255,.72);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border:1px solid rgba(255,255,255,.9);box-shadow:0 8px 24px rgba(20,50,30,.16)}
.view3d button{width:42px;min-height:42px;border-radius:12px;border:0;background:transparent;color:var(--ink);font:700 1.05rem/1 var(--f-ui);cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;padding:0}
.view3d button small{font-size:.58rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--muted)}
.view3d button:hover{background:rgba(18,96,48,.1)}.view3d button[aria-pressed=true]{background:var(--accent-fill);color:#fff}.view3d button[aria-pressed=true] small{color:#fff}
@media (max-width:860px){.view3d{top:auto;bottom:calc(34vh + 14px);transform:none;flex-direction:row;right:12px;left:auto;padding:4px;gap:2px;border-radius:14px}.view3d button{width:36px;min-height:36px}.view3d button small{display:none}}
.dist3d{position:relative;width:100%;height:clamp(300px,52vh,470px);margin:0 auto 6px}
.dist3d canvas{width:100%;height:100%;display:block}
.d3hint{position:absolute;left:0;right:0;bottom:2px;display:flex;align-items:center;justify-content:center;gap:8px;font:600 .72rem var(--f-ui);letter-spacing:.06em;color:var(--muted)}
.d3hint button{width:34px;height:34px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer;font-size:.8rem}
.cmp-loc{margin:0 0 14px;display:flex;flex-direction:column;align-items:center;gap:6px;font:400 .82rem var(--f-ui);color:var(--muted)}
.cmp-gps{border:1px solid var(--accent);background:#fff;color:var(--accent);border-radius:99px;padding:9px 16px;min-height:40px;font:700 .8rem var(--f-ui);cursor:pointer}
.cmp-gps:hover{background:var(--accent-fill);color:#fff}
.hero-t,.hero-t .cue{transition:opacity .7s ease,transform .7s ease}
body.pre .hero-t{opacity:0;transform:translateY(14px)}
body.pre .hero-t .cue{opacity:0}
.hero-t .cue{transition-delay:.5s}
.tod{position:absolute;z-index:5;left:var(--gutter);bottom:18px;display:flex;align-items:center;gap:10px;padding:6px 14px 6px 6px;border-radius:99px;background:rgba(255,255,255,.78);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border:1px solid rgba(255,255,255,.9);box-shadow:0 8px 24px rgba(20,50,30,.16);font:600 .78rem var(--f-ui);color:var(--ink)}
.tod button{width:40px;height:40px;border-radius:50%;border:0;background:var(--accent-fill);color:#fff;font-size:1.15rem;cursor:pointer;display:flex;align-items:center;justify-content:center;padding:0}
.tod button[aria-pressed=true]{box-shadow:0 0 0 3px rgba(0,128,69,.3)}
.tod input[type=range]{width:min(200px,34vw);accent-color:var(--accent-fill)}
.tod output{min-width:3.2em;font-variant-numeric:tabular-nums}
.gstage.night .chip,.gstage.night .sbtn{box-shadow:0 0 0 1px rgba(255,255,255,.25)}
@media (max-width:860px){.tod{left:12px;bottom:calc(34vh + 14px);padding:4px 12px 4px 4px;gap:8px}.tod button{width:34px;height:34px}.tod input[type=range]{width:96px}.tod output{display:none}}
.dist3d{height:clamp(340px,60vh,560px)}.d3hint{flex-wrap:wrap}
@media (min-width:861px) and (max-height:860px){
 .pin.dio .step .card{width:min(430px,100%);padding:18px 24px}
 .pin.dio .step .card h2{font-size:1.55rem;margin-bottom:.35em}
 .pin.dio .step .card p{font-size:.93rem;line-height:1.5;margin-bottom:.7em}
 .pin.dio .step .card .eyebrow{margin-bottom:.4em}
}
@media (min-width:861px){.pin.dio .step{padding-top:8vh;padding-bottom:8vh}}

/* Earth Notes integration (2026-10-06): the top bar's link back to the stories index. */
.bar a.bar-back{pointer-events:auto;color:inherit;text-decoration:none;white-space:nowrap}
.bar a.bar-back:hover{text-decoration:underline;text-underline-offset:3px}
.bar a.bar-back:focus-visible{outline:2px solid currentColor;outline-offset:3px}