/* ==========================================================
   ECOSYSTEM EXPLORER (ecosystems.html)
   Layered on learn.css + zones.css (talk toggle, g-btn, quiz).
   A big edge-to-edge scene, the info card floating over the
   right side on wide screens, and a "Who lives here?" dock.
   ========================================================== */
.eco-page{background:#f1ead8}

/* ---------- hero ---------- */
.eco-hero{padding-bottom:.7rem}
.eco-hero h1{font-size:clamp(2.1rem,5vw,3.6rem)}
.eco-hero .nb-lede{margin-bottom:1rem}
.eco-tools{align-items:center}
.eco-passport{display:inline-flex;align-items:center;gap:.45rem;min-height:46px;margin:0;padding:.5rem 1.05rem;border-radius:14px;background:#173f31;color:#ffe9a0;font:600 1rem/1 var(--display);box-shadow:inset 0 0 0 2px rgba(238,165,44,.55),inset 0 0 0 5px #173f31,inset 0 0 0 6px rgba(238,165,44,.28),0 4px 0 #0d2d23}
.eco-passport b{color:#fff;font-size:1.12rem}
.eco-passport .pp-globe{font-size:1.2rem}
.eco-passport.bump{animation:ppBump .9s cubic-bezier(.2,1.6,.4,1)}
@keyframes ppBump{30%{transform:scale(1.14) rotate(-2deg)}}

/* ---------- picker chips (with passport stamp marks) ---------- */
.eco-picker{max-width:1240px;margin:0 auto;padding:.3rem clamp(.6rem,3vw,1.5rem) 1.1rem;display:flex;flex-wrap:wrap;gap:.5rem;justify-content:center}
.eco-chip{position:relative;display:inline-flex;align-items:center;gap:.4rem;min-height:44px;padding:.4rem .95rem .4rem .55rem;border-radius:999px;border:2px solid #d8c9a3;background:#fffaf0;color:#173f31;font:600 .95rem/1 var(--display);cursor:pointer;transition:transform .15s,background .15s,border-color .15s}
.eco-chip .ec-emo{font-size:1.25rem;line-height:1}
.eco-chip:hover{transform:translateY(-2px);border-color:#b7a06a}
.eco-chip[aria-pressed="true"]{background:#173f31;border-color:#173f31;color:#fff4d6;box-shadow:0 4px 0 #0d2d23}
.ec-stamp{display:none;position:absolute;top:-10px;right:-8px;width:25px;height:25px;border-radius:50%;place-items:center;background:#fffaf0;color:#b9502f;font-size:.8rem;line-height:1;border:2px solid #b9502f;box-shadow:inset 0 0 0 1.5px #fffaf0,inset 0 0 0 3px rgba(185,80,47,.75);transform:rotate(-14deg)}
.eco-chip.stamped .ec-stamp{display:grid}
.eco-chip.stamped.fresh .ec-stamp{animation:chipStamp .7s cubic-bezier(.2,1.6,.4,1)}
@keyframes chipStamp{from{transform:scale(2.6) rotate(-40deg);opacity:0}to{transform:scale(1) rotate(-14deg);opacity:1}}

/* ---------- the big stage ---------- */
.eco-zone{--stage-h:clamp(560px,76vh,980px);--card-w:min(400px,32vw);--gap:20px;position:relative;display:flex;flex-direction:column;scroll-margin-top:72px}
.eco-stage{position:relative;height:var(--stage-h);overflow:hidden;background:#cfe0d2;border-block:4px solid #fffaf0;box-shadow:0 18px 44px rgba(45,35,15,.24);outline:none}
.eco-stage canvas{position:absolute;inset:0;width:100%;height:100%;display:block;touch-action:manipulation;cursor:pointer;-webkit-tap-highlight-color:transparent}
.eco-stage-top{position:absolute;z-index:2;left:var(--gap);top:var(--gap);display:flex;flex-direction:column;align-items:flex-start;gap:.45rem;max-width:calc(100% - var(--card-w) - 3*var(--gap));pointer-events:none}
.eco-stage-title{margin:0;padding:.4rem .9rem .45rem .7rem;border-radius:16px;background:rgba(255,250,236,.95);color:#173f31;font:600 clamp(1.15rem,2.2vw,1.8rem)/1.05 var(--display);box-shadow:0 6px 18px rgba(30,25,10,.18)}
.eco-tip{margin:0;padding:.35rem .8rem;border-radius:999px;background:rgba(23,63,49,.9);color:#fff4d6;font:600 .9rem/1.2 var(--display);transition:opacity .6s}
.eco-tip.gone{opacity:0}

/* passport stamp celebration */
.eco-stampfx{position:absolute;z-index:4;left:calc((100% - var(--card-w) - var(--gap))/2);top:44%;width:clamp(170px,20vw,230px);aspect-ratio:1;border-radius:50%;display:grid;place-items:center;align-content:center;gap:.15rem;text-align:center;color:#b9502f;background:rgba(255,250,236,.93);border:6px solid #b9502f;box-shadow:inset 0 0 0 5px rgba(255,250,236,.93),inset 0 0 0 8px #b9502f,0 22px 50px rgba(40,20,10,.35);font:700 1.1rem/1.05 var(--display);text-transform:uppercase;letter-spacing:.06em;pointer-events:none;transform:translate(-50%,-50%) rotate(-12deg)}
.eco-stampfx .sf-emoji{font-size:3.1rem;line-height:1;letter-spacing:0}
.eco-stampfx small{font:600 .78rem/1.1 var(--display);letter-spacing:.1em;max-width:80%}
.eco-stampfx.go{animation:stampIn 3.2s cubic-bezier(.2,1.3,.4,1) forwards}
@keyframes stampIn{
  0%{opacity:0;transform:translate(-50%,-50%) rotate(-34deg) scale(2.5)}
  13%{opacity:1;transform:translate(-50%,-50%) rotate(-12deg) scale(.96)}
  18%{transform:translate(-50%,-50%) rotate(-12deg) scale(1.05)}
  24%{transform:translate(-50%,-50%) rotate(-12deg) scale(1)}
  84%{opacity:1;transform:translate(-50%,-50%) rotate(-12deg) scale(1)}
  100%{opacity:0;transform:translate(-50%,-50%) rotate(-12deg) scale(.92)}}

/* ---------- floating info card ---------- */
.eco-card{position:absolute;z-index:3;top:calc(4px + var(--gap));right:var(--gap);width:var(--card-w);max-height:calc(var(--stage-h) - 2*var(--gap));overflow:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:#cdb88a transparent;background:rgba(255,250,238,.88);-webkit- saturate(1.15); saturate(1.15);border:2px solid rgba(224,207,166,.95);border-radius:22px;padding:1.1rem 1.2rem 0;box-shadow:0 18px 40px rgba(40,28,10,.3)}
.eco-card h2{margin:.15rem 0 .5rem;font-size:clamp(1.55rem,2.4vw,2.05rem);color:#173f31;line-height:1.05}
.eco-block{margin:.55rem 0;padding:.6rem .8rem;border-radius:14px;font-size:1rem;line-height:1.45}
.eco-block>b{display:block;font:600 .72rem/1.2 var(--display);letter-spacing:.12em;text-transform:uppercase;margin-bottom:.2rem}
.eco-block p{margin:0}
.eb-what{background:rgba(229,239,248,.9)}.eb-what>b{color:#2f6f9f}
.eb-where{background:rgba(232,242,220,.92)}.eb-where>b{color:#4f7a2e}
.eb-climate{background:rgba(253,240,210,.92)}.eb-climate>b{color:#a0680c}
.eb-facts{background:rgba(255,255,255,.62);border:1.5px solid rgba(224,207,166,.85)}.eb-facts>b{color:var(--rust)}
.eb-layers{background:rgba(243,241,252,.92)}.eb-layers>b{color:#5f52b0}
.eb-matters{background:rgba(236,244,236,.92)}.eb-matters>b{color:#2e6b4a}
.eb-help{background:rgba(255,243,214,.95);border:2px dashed #e8b93a}.eb-help>b{color:#a0680c}
.eco-facts{margin:.1rem 0 0;padding:0;list-style:none;display:grid;gap:.4rem}
.eco-facts li{position:relative;padding-left:1.55rem}
.eco-facts li::before{content:"✨";position:absolute;left:0;top:.05rem;font-size:.95rem}
.eco-layers{margin:.35rem 0 .1rem;padding:0;list-style:none;display:grid;gap:3px;border-radius:12px;overflow:hidden}
.eco-layers li{display:grid;grid-template-columns:auto 1fr;align-items:center;gap:.1rem .6rem;padding:.45rem .7rem;background:var(--lc);color:var(--lt,#1d2b24);font-size:.9rem;line-height:1.3}
.eco-layers li b{font:600 .95rem/1.15 var(--display)}
.eco-dive{display:flex;align-items:center;gap:.5rem;margin-top:.55rem;padding:.65rem .9rem;border-radius:14px;background:linear-gradient(180deg,#1b4f7a,#0c2742);color:#eaf6ff;font:600 .95rem/1.25 var(--display);text-decoration:none;box-shadow:0 3px 0 #06182a;transition:transform .15s ease,box-shadow .15s ease}
.eco-dive:hover,.eco-dive:focus-visible{transform:translateY(-2px);box-shadow:0 5px 0 #06182a}
.eco-dive span:last-child{margin-left:auto}
.eco-dive[hidden]{display:none}
.eco-layers li span{grid-column:2;font-size:.86rem;opacity:.92}
.eco-layers li i{grid-row:span 2;font-style:normal;font:700 .78rem/1 var(--display);min-width:1.6rem;height:1.6rem;display:grid;place-items:center;border-radius:50%;background:rgba(255,255,255,.35)}
.eco-nav{position:sticky;bottom:0;margin:.6rem -1.2rem 0;padding:.9rem 1.2rem 1rem;background:linear-gradient(rgba(255,250,238,0),rgba(255,250,238,.96) 28%);z-index:1}

/* ---------- who lives here dock ---------- */
.eco-dock{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.35fr);gap:.8rem 1.1rem;align-items:stretch;padding:1rem max(clamp(.75rem,2vw,1.4rem),calc((100% - 1260px)/2)) 1.2rem;background:#fffaf0;background-image:repeating-linear-gradient(0deg,transparent 0 31px,rgba(95,138,62,.06) 32px 33px);border-bottom:2px solid #e0cfa6}
.eco-who{display:grid;grid-template-columns:auto minmax(0,1fr);grid-template-rows:auto auto 1fr;column-gap:.9rem;align-items:start;padding:.75rem .95rem;border-radius:18px;background:#fff;border:2px solid #e0cfa6;box-shadow:0 4px 0 #e7d9b6;min-height:112px}
.ew-pic{grid-row:1/4;align-self:center;width:84px;height:84px;border-radius:50%;display:grid;place-items:center;font-size:3rem;line-height:1;background:radial-gradient(circle at 36% 30%,#fffdf6,#efe2c2);box-shadow:inset 0 0 0 3px #fff,0 3px 10px rgba(60,40,20,.16)}
.ew-pic img{width:70px;height:70px;object-fit:contain}
.ew-kicker{margin:0;font:600 .72rem/1.3 var(--display);letter-spacing:.12em;text-transform:uppercase;color:var(--rust)}
.ew-count{margin-left:.3rem;padding:.08rem .45rem;border-radius:999px;background:#eef4dd;color:#4f7a2e;letter-spacing:.04em;white-space:nowrap}
.ew-count.all{background:#b9502f;color:#fff}
.ew-name{margin:.1rem 0 .15rem;font:600 1.35rem/1.1 var(--display);color:#173f31}
.ew-fact{margin:0;font-size:1.02rem;line-height:1.42}
.eco-who.pop .ew-pic{animation:whoPop .55s cubic-bezier(.2,1.6,.4,1)}
@keyframes whoPop{from{transform:scale(.5) rotate(-12deg)}to{transform:scale(1)}}
.eco-critters{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:.55rem;align-content:center}
.ecb{position:relative;display:flex;align-items:center;gap:.5rem;min-height:52px;padding:.35rem .7rem .35rem .45rem;border-radius:16px;border:2px solid #e0cfa6;background:#fff;color:#173f31;font:600 .95rem/1.12 var(--display);text-align:left;cursor:pointer;box-shadow:0 3px 0 #e7d9b6;transition:transform .12s,border-color .12s,background .12s}
.ecb:hover{transform:translateY(-2px);border-color:#b7a06a}
.ecb:active{transform:translateY(2px);box-shadow:0 1px 0 #e7d9b6}
.ecb-art{flex:none;width:40px;height:40px;display:grid;place-items:center;font-size:1.75rem;line-height:1}
.ecb-art img{width:40px;height:40px;object-fit:contain}
.ecb-check{display:none;position:absolute;top:-8px;right:-7px;width:23px;height:23px;border-radius:50%;place-items:center;background:var(--leaf);color:#fff;font-size:.78rem;box-shadow:0 0 0 2px #fff}
.ecb.met{background:#f3f7ea;border-color:#b7cc92;box-shadow:0 3px 0 #cddcb0}
.ecb.met .ecb-check{display:grid}
.ecb.unmet .ecb-art{animation:ecbWiggle 4.5s ease-in-out infinite;animation-delay:var(--wd,0s)}
@keyframes ecbWiggle{0%,86%,100%{transform:none}90%{transform:rotate(-9deg) scale(1.08)}95%{transform:rotate(7deg) scale(1.08)}}
.ecb[aria-current="true"]{border-color:#173f31;box-shadow:0 3px 0 #173f31}

/* ---------- quiz ---------- */
.eco-quiz{margin-top:2.4rem}
.eco-quiz .quiz-q{color:#173f31}
.eco-quiz .quiz-opt{flex:0 1 210px}
.eco-quiz .g-msg .src-tag{vertical-align:.08em}

/* ---------- phones and tablets: card flows under the stage ---------- */
@media(max-width:1099px){
  .eco-zone{--stage-h:clamp(420px,70vh,640px);--card-w:0px;--gap:14px}
  .eco-stage-top{max-width:calc(100% - 2*var(--gap))}
  .eco-stampfx{left:50%}
  .eco-dock{order:1;grid-template-columns:1fr;padding-inline:clamp(.75rem,3vw,1.5rem)}
  .eco-card{order:2;position:static;width:auto;max-width:760px;max-height:none;overflow:visible;margin:1.1rem clamp(.75rem,3vw,1.5rem) 0;padding:1.1rem 1.2rem 1.1rem;background:#fffdf6;-webkit-backdrop-filter:none;backdrop-filter:none;box-shadow:0 8px 0 #e7d9b6}
  .eco-nav{position:static;margin:1rem 0 0;padding:0;background:none}
}
@media(min-width:760px) and (max-width:1099px){
  .eco-card{margin-inline:auto;width:calc(100% - 3rem)}
  .eco-dock{grid-template-columns:minmax(0,1fr) minmax(0,1.3fr)}
  .eco-critters{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:620px){
  .eco-critters{grid-template-columns:repeat(2,minmax(0,1fr));gap:.45rem}
  .ecb{min-height:50px;font-size:.9rem;padding:.3rem .55rem .3rem .35rem;gap:.35rem}
  .ecb-art{width:36px;height:36px;font-size:1.55rem}.ecb-art img{width:36px;height:36px}
  .eco-who{min-height:0;padding:.65rem .75rem;column-gap:.7rem}
  .ew-pic{width:64px;height:64px;font-size:2.3rem}.ew-pic img{width:54px;height:54px}
  .ew-name{font-size:1.2rem}
  .ew-fact{font-size:.98rem}
  .eco-picker{gap:.4rem}
  .eco-chip{min-height:42px;font-size:.86rem;padding:.35rem .75rem .35rem .45rem;gap:.3rem}
  .eco-chip .ec-emo{font-size:1.1rem}
  .eco-stage-title{font-size:1.1rem;padding:.3rem .7rem .35rem .55rem}
  .eco-tip{font-size:.8rem}
  .eco-card{padding:1rem .95rem}
  .eco-nav{gap:.35rem}
  .eco-nav .g-btn{padding:.5rem .4rem;font-size:.9rem}
  .eco-nav .read-aloud{padding:.5rem .6rem;font-size:.92rem}
  .eco-passport{font-size:.95rem}
}
@media(prefers-reduced-motion:reduce){
  .ecb.unmet .ecb-art,.eco-passport.bump,.eco-who.pop .ew-pic,.eco-chip.stamped.fresh .ec-stamp{animation:none}
  .eco-stampfx.go{animation:none;opacity:1}
}

/* places pills and climate number tiles on the card */
.eco-places{display:flex;flex-wrap:wrap;gap:.3rem;margin:.45rem 0 0}
.eco-places span{font:600 .74rem/1.2 var(--display);color:#2f5a3a;background:#fffaf0;border:1px solid rgba(63,111,69,.28);border-radius:999px;padding:.2em .65em}
.eco-nums{display:grid;gap:.35rem;margin-top:.5rem}
.eco-nums div{display:grid;grid-template-columns:auto 1fr;column-gap:.4rem;align-items:start;background:#fffaf0;border-radius:10px;padding:.4rem .55rem;box-shadow:0 0 0 1px rgba(185,80,47,.18)}
.eco-nums span{grid-row:span 2;font-size:1.15rem;line-height:1.2}
.eco-nums b{font:700 .68rem/1.2 var(--display);letter-spacing:.04em;text-transform:uppercase;color:#9a5a2a}
.eco-nums em{font:600 .86rem/1.3 var(--read);font-style:normal;color:var(--ink)}

/* ===== Fixed design stage (lw-stage.js): the explorer canvas is one 16:9 logical scene (1280 x 720) scaled to fit, so every
   scene composes identically at every width and zoom. Desktop: the scene and the info card sit side by side (the scene as
   big as the window allows, never taller than the screen); phones and tablets: the scene full width, the card below. */
.eco-stage{height:auto}
.eco-stage canvas{position:relative;inset:auto;width:100%;height:auto;aspect-ratio:16/9}
/* the title pill and tip ride on the scene, so they scale with it (--eu is one logical unit), with a floor for reading */
.eco-stage{container-type:inline-size;--eu:calc(100cqw / 1280)}
.eco-stage-top{left:calc(var(--eu) * 18);top:calc(var(--eu) * 18);gap:calc(var(--eu) * 8)}
.eco-stage-title{font-size:max(13px,calc(var(--eu) * 30));padding:.35em .75em .38em .6em;border-radius:.6em}
.eco-tip{font-size:max(11px,calc(var(--eu) * 15))}
@media(max-width:620px){.eco-tip{display:none}}
@media(min-width:1100px){
  .eco-zone{--card-w:clamp(380px,18vw,560px);display:grid;grid-template-columns:min(calc(100% - var(--card-w) - 3 * var(--gap)),calc((100svh - 120px) * 16 / 9)) var(--card-w);justify-content:center;column-gap:var(--gap);padding-top:var(--gap)}
  .eco-stage{grid-column:1;grid-row:1;border:4px solid #fffaf0;border-radius:18px}
  .eco-stage-top{max-width:calc(100% - 2 * var(--gap))}
  .eco-stampfx{left:50%}
  .eco-card{grid-column:2;grid-row:1;position:relative;top:auto;right:auto;width:auto;max-height:none;align-self:stretch;contain:size}
  /* on big screens the card's text grows with the scene (--lw-s is the stage scale, set by lw-stage.js) */
  .eco-card{zoom:clamp(1,calc(var(--lw-s,1) * .72),1.6)}
  .eco-dock{grid-column:1 / -1;grid-row:2;margin-top:var(--gap)}
}