/* Grow Koa — editorial map-scrollytelling. Dark theme, locked.
   One accent: living koa green (--accent). Amber appears only as map data. */

:root{
  --ink:#0a0e0a;        /* page base, near-black green */
  --surface:#10160f;    /* raised surface */
  --surface-2:#161d14;
  --text:#eef2ea;       /* bone */
  --muted:#9fb097;      /* sage grey */
  --line:rgba(233,240,228,.13);
  --accent:#84cf6a;     /* koa green — the one accent */
  --accent-ink:#08120a; /* text on accent */
  --amber:#e8b04b;      /* DATA ONLY: opportunity land */
  --hist:#b08a57;       /* DATA ONLY: historical */
  --dot:#ff6b86;        /* DATA ONLY: occurrence points */
  --card-w: 440px;
  --maxw: 1320px;
  --font: "Bricolage Grotesque", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){ html{scroll-behavior:auto} }
body{
  margin:0;background:var(--ink);color:var(--text);
  font-family:var(--body);line-height:1.55;-webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

/* ---- Map (fixed behind) ---- */
#map{position:fixed;inset:0;z-index:0}
#scrim{
  position:fixed;inset:0;z-index:1;pointer-events:none;
  background:
    linear-gradient(90deg, rgba(8,12,8,.92) 0%, rgba(8,12,8,.78) 34%, rgba(8,12,8,.20) 60%, rgba(8,12,8,0) 78%),
    linear-gradient(180deg, rgba(8,12,8,.55) 0%, rgba(8,12,8,0) 22%, rgba(8,12,8,0) 80%, rgba(8,12,8,.6) 100%);
}

/* ---- Nav ---- */
.nav{
  position:fixed;top:0;left:0;right:0;height:64px;z-index:20;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 clamp(16px,4vw,40px);
  background:linear-gradient(180deg, rgba(8,12,8,.78), rgba(8,12,8,0));
}
.brand{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font);font-weight:600;font-size:20px;letter-spacing:-.01em;
  color:var(--text);text-decoration:none;
}
.brand .leaf{color:var(--accent);flex:0 0 auto}
.brand span{color:var(--accent)}
.brand.small{font-size:17px;color:var(--text)}
.brand.small svg{color:var(--accent)}
.nav-cta{
  font-family:var(--font);font-size:14px;font-weight:500;color:var(--text);
  text-decoration:none;padding:8px 14px;border:1px solid var(--line);border-radius:999px;
  background:rgba(255,255,255,.04);transition:border-color .2s, transform .15s;
}
.nav-cta:hover{border-color:var(--accent)}
.nav-cta:active{transform:translateY(1px)}

/* ---- Progress dots ---- */
.progress{
  position:fixed;right:22px;top:50%;transform:translateY(-50%);z-index:20;
  display:flex;flex-direction:column;gap:13px;
}
.progress a{
  width:9px;height:9px;border-radius:50%;background:rgba(238,242,234,.28);
  display:block;transition:background .25s, transform .25s;position:relative;
}
.progress a:hover{background:rgba(238,242,234,.6)}
.progress a.on{background:var(--accent);transform:scale(1.35)}

/* ---- Steps / cards ---- */
main{position:relative;z-index:5}
.step{
  min-height:100dvh;display:flex;align-items:center;
  padding:120px clamp(16px,4vw,40px) 100px;
}
.card{
  width:var(--card-w);max-width:100%;
  background:rgba(13,18,12,.62);backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border:1px solid var(--line);border-radius:18px;
  padding:26px 28px;box-shadow:0 18px 60px rgba(0,0,0,.5);
  opacity:0;transform:translateY(26px);transition:opacity .7s ease, transform .7s cubic-bezier(.16,1,.3,1);
}
.step.active .card{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  .card{opacity:1;transform:none;transition:none}
}

.act{
  display:inline-block;font-family:var(--font);font-size:12.5px;font-weight:600;
  letter-spacing:.02em;color:var(--accent);margin-bottom:12px;
}
.eyebrow{
  font-family:var(--font);font-size:13px;font-weight:500;color:var(--muted);
  margin:0 0 18px;letter-spacing:.01em;
}
.card h2{
  font-family:var(--font);font-weight:600;letter-spacing:-.02em;line-height:1.05;
  font-size:clamp(28px,3.4vw,40px);margin:0 0 16px;
}
.card p{margin:0 0 14px;color:#dde6d7;font-size:16.5px;max-width:60ch}
.card p:last-child{margin-bottom:0}
.card b{color:var(--text);font-weight:600}
.card i{font-style:italic}

/* map legend keys inside cards */
.map-note{
  display:flex;flex-wrap:wrap;align-items:center;gap:7px 16px;
  font-size:13px;color:var(--muted);margin-top:18px;
  border-top:1px solid var(--line);padding-top:14px;
}
.key{width:13px;height:13px;border-radius:3px;display:inline-block;vertical-align:-2px;margin-right:-4px}
.key-dot{border-radius:50%;background:var(--dot)}
.key-range{background:var(--hist);opacity:.7}
.key-hist{background:var(--hist)}
.key-current{background:var(--accent)}
.key-amber{background:var(--amber)}

/* ---- Hero ---- */
.hero{align-items:center}
.hero-card{
  width:560px;background:rgba(10,14,10,.46);border:none;box-shadow:none;
  backdrop-filter:none;-webkit-backdrop-filter:none;padding:0;
  opacity:1;transform:none;
}
.hero h1{
  font-family:var(--font);font-weight:700;letter-spacing:-.03em;line-height:.96;
  font-size:clamp(46px,8vw,92px);margin:0 0 22px;
}
.lede{font-size:clamp(17px,2vw,21px);color:#d9e3d3;max-width:34ch;margin:0 0 30px}
.cta-row{display:flex;flex-wrap:wrap;gap:12px}
.btn{
  font-family:var(--font);font-weight:600;font-size:15.5px;text-decoration:none;
  padding:13px 22px;border-radius:999px;display:inline-flex;align-items:center;gap:8px;
  transition:transform .15s ease, background .2s, border-color .2s;
}
.btn:active{transform:translateY(1px) scale(.99)}
.btn.primary{background:var(--accent);color:var(--accent-ink)}
.btn.primary:hover{background:#97da7e}
.btn.ghost{color:var(--text);border:1px solid var(--line);background:rgba(255,255,255,.04)}
.btn.ghost:hover{border-color:var(--accent)}
.scroll-hint{
  position:absolute;bottom:30px;left:50%;transform:translateX(-50%);
  font-family:var(--font);font-size:12px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--muted);animation:bob 2.4s ease-in-out infinite;
}
.scroll-hint::after{content:"";display:block;width:1px;height:26px;margin:8px auto 0;
  background:linear-gradient(var(--muted),transparent)}
@keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,6px)}}
@media (prefers-reduced-motion: reduce){.scroll-hint{animation:none}}

/* ---- Act 3: full-width value frames ---- */
.full{align-items:center}
.full-inner{
  width:100%;max-width:var(--maxw);margin:0 auto;
  background:rgba(10,14,10,.74);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid var(--line);border-radius:22px;padding:clamp(28px,4vw,48px);
  opacity:0;transform:translateY(26px);transition:opacity .7s ease, transform .7s cubic-bezier(.16,1,.3,1);
}
.step.active .full-inner{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){.full-inner{opacity:1;transform:none;transition:none}}
.full-head{
  font-family:var(--font);font-weight:600;letter-spacing:-.02em;
  font-size:clamp(26px,3.4vw,40px);margin:0 0 30px;
}
.frames{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.frame{
  border-top:2px solid var(--accent);padding-top:16px;
}
.frame-n{
  font-family:var(--font);font-weight:700;font-size:clamp(26px,3vw,34px);
  color:var(--accent);letter-spacing:-.02em;display:block;margin-bottom:8px;line-height:1;
}
.frame h3{font-family:var(--font);font-weight:600;font-size:17px;margin:0 0 8px}
.frame p{margin:0;color:var(--muted);font-size:14.5px;line-height:1.5}

/* ---- Hope ---- */
.hope-card{width:600px}

/* ---- Credits ---- */
.credits{
  position:relative;z-index:5;background:var(--ink);
  border-top:1px solid var(--line);padding:clamp(48px,7vw,90px) clamp(16px,4vw,40px);
}
.credits-inner{
  max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:1.1fr 1.4fr;gap:48px;
}
.credits-brand .brand{margin-bottom:14px}
.credits-brand p{color:var(--muted);max-width:42ch;font-size:15px}
.credits-cols{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.credits h4{font-family:var(--font);font-size:13px;color:var(--text);margin:0 0 14px;font-weight:600}
.credits ul{list-style:none;margin:0 0 14px;padding:0;font-size:14px;color:var(--muted)}
.credits li{padding:5px 0;border-bottom:1px solid rgba(233,240,228,.06)}
.credits a{color:var(--accent);text-decoration:none}
.credits a:hover{text-decoration:underline}
.caveat{font-size:13px;color:#7d8c77;line-height:1.5;margin:10px 0 0}

/* Built-by credit */
.builtby{
  display:inline-flex;align-items:center;gap:11px;margin-top:24px;
  text-decoration:none;color:var(--muted);
  font-family:var(--font);
}
.builtby .bb-label{font-size:13px}
.builtby .bb-logo{
  height:22px;width:auto;display:block;
  filter:invert(1);          /* black logo → white on the dark footer */
  opacity:.68;transition:opacity .2s;
}
.builtby:hover .bb-logo{opacity:1}

/* ---- Loading ---- */
#loading{
  position:fixed;bottom:18px;left:50%;transform:translateX(-50%);z-index:30;
  background:rgba(13,18,12,.85);border:1px solid var(--line);border-radius:999px;
  padding:8px 18px;font-size:13px;color:var(--muted);font-family:var(--font);
}

/* ---- MapLibre control theming ---- */
.maplibregl-ctrl-attrib{background:rgba(10,14,10,.7)!important;color:var(--muted)!important}
.maplibregl-ctrl-attrib a{color:var(--muted)!important}

/* ============ RESPONSIVE ============ */
@media (max-width:900px){
  .credits-inner{grid-template-columns:1fr;gap:36px}
  .frames{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
  :root{--card-w:100%}
  .progress{display:none}
  .step{padding:96px 16px 72px;align-items:flex-end}
  .hero{align-items:center}
  .card,.hero-card,.hope-card{width:100%}
  .hero-card{padding:0}
  .hero h1{font-size:clamp(40px,13vw,60px)}
  /* stronger scrim at the bottom where mobile cards sit */
  #scrim{background:
    linear-gradient(180deg, rgba(8,12,8,.55) 0%, rgba(8,12,8,.05) 30%, rgba(8,12,8,.35) 64%, rgba(8,12,8,.92) 100%);}
  .frames{grid-template-columns:1fr;gap:16px}
  .credits-cols{grid-template-columns:1fr}
  .cta-row .btn{flex:1;justify-content:center}
}