/* ============ Algae Living landing site ============ */
:root{
  --bg:#04080a;--ink:#dff2e4;--dim:#8fb09a;--green:#5ad07a;--green2:#9fe8b4;
  --amber:#ffd166;--line:rgba(90,208,122,.2);--warm:#0e1611;--warm2:#131d15;
}
html,body{overflow:hidden;height:100%}
body.site-open{overflow:auto;overflow-x:hidden;height:auto}
#site{position:relative;z-index:3;display:none}
body.site-open #site{display:block}
#site [hidden]{display:none!important}

/* skip link */
.skip{position:absolute;left:-999px;top:8px;z-index:100;background:#5ad07a;color:#04170c;padding:8px 14px;border-radius:999px;font-weight:600;text-decoration:none}
.skip:focus{left:8px}

/* ---------- nav ---------- */
#siteNav{position:fixed;top:0;left:0;right:0;z-index:50;display:flex;align-items:center;gap:18px;padding:12px clamp(14px,4vw,34px);background:linear-gradient(180deg,rgba(4,10,8,.92),rgba(4,10,8,.55) 70%,transparent);backdrop-filter:blur(8px)}
.brand{color:var(--green2);text-decoration:none;font-weight:700;letter-spacing:.02em;font-size:15px}
.nlinks{margin-left:auto;display:flex;gap:4px;flex-wrap:wrap}
.nlinks a,#mnav a{color:var(--dim);text-decoration:none;font-size:13px;padding:7px 11px;border-radius:999px;transition:color .2s,background .2s}
.nlinks a:hover,.nlinks a.active{color:#fff;background:rgba(90,208,122,.12)}
.nlinks a:focus-visible,#mnav a:focus-visible,.cta-primary:focus-visible,.upcard:focus-visible,.leaf circle{outline:2px solid var(--green);outline-offset:2px}
.navplay{border:1px solid var(--line);color:var(--green)!important}
#menuBtn{margin-left:auto;display:none;background:none;border:1px solid var(--line);color:var(--ink);border-radius:10px;padding:8px 12px;font-family:inherit;font-size:13px;cursor:pointer}
#mnav{position:fixed;top:54px;left:10px;right:10px;z-index:49;display:grid;grid-template-columns:1fr 1fr 1fr;gap:6px;background:rgba(5,12,9,.96);border:1px solid var(--line);border-radius:16px;padding:12px}
@media(max-width:900px){.nlinks{display:none}#menuBtn{display:block}}

/* ---------- sections base ---------- */
.sec{position:relative;padding:clamp(70px,10vh,120px) clamp(16px,6vw,60px);overflow:hidden}
.wrap{max-width:1060px;margin:0 auto;position:relative;z-index:2}
.eyebrow{font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--green);margin-bottom:14px}
h1{font-size:clamp(3.2rem,13vw,7.5rem);line-height:.92;letter-spacing:-.03em;color:#fff;margin:10px 0 18px}
h2{font-size:clamp(1.9rem,5.4vw,3.4rem);letter-spacing:-.025em;line-height:1.05;color:#fff}
.lede{color:var(--dim);font-size:clamp(.98rem,2.4vw,1.15rem);max-width:56ch;line-height:1.75;margin-top:14px}
.mono{font-family:"IBM Plex Mono",monospace}
.glass{background:rgba(8,20,13,.66);border:1px solid var(--line);border-radius:18px;backdrop-filter:blur(10px)}

/* ---------- hero ---------- */
.hero{min-height:100svh;display:flex;align-items:center;background:radial-gradient(130% 90% at 50% -10%,#0b2416,#04080a 65%)}
#cvHero{position:absolute;inset:0;width:100%;height:100%;z-index:0}
.rays{position:absolute;inset:-20% -10%;z-index:1;pointer-events:none;background:
 linear-gradient(115deg,transparent 42%,rgba(207,232,184,.05) 47%,transparent 53%),
 linear-gradient(105deg,transparent 60%,rgba(207,232,184,.045) 66%,transparent 72%);
 animation:sway 14s ease-in-out infinite alternate}
@keyframes sway{to{transform:translateX(-3%) rotate(-1.5deg)}}
.hero-in{position:relative;z-index:2;max-width:1060px;margin:0 auto;width:100%}
.tag3{font-size:clamp(1.25rem,4vw,1.9rem);font-family:"Source Serif 4",serif;font-style:italic;color:var(--green2);letter-spacing:.02em}
.tag3 span{animation:breatheIn 1.2s cubic-bezier(.16,1,.3,1) both}.tag3 span:nth-child(2){animation-delay:.35s}.tag3 span:nth-child(3){animation-delay:.7s}
@keyframes breatheIn{from{opacity:0;transform:translateY(14px)}to{opacity:1}}
.sub{color:var(--dim);max-width:52ch;line-height:1.75;margin-top:16px;font-size:clamp(.95rem,2.4vw,1.1rem)}
.ctas{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.cta-primary{background:linear-gradient(180deg,#6fe08c,#2fa05c);color:#04170c;border:none;border-radius:999px;padding:16px 38px;font-size:clamp(1rem,2.6vw,1.15rem);font-weight:700;letter-spacing:.06em;cursor:pointer;box-shadow:0 10px 36px rgba(90,208,122,.35),inset 0 1px 0 rgba(255,255,255,.35);transition:transform .15s,box-shadow .2s;font-family:inherit}
.cta-primary:hover{transform:translateY(-2px);box-shadow:0 16px 44px rgba(90,208,122,.45)}
.cta-primary.sm{padding:12px 26px;font-size:.95rem}
.cta-primary.xl{padding:20px 52px;font-size:1.25rem}
.cta-ghost{display:inline-flex;align-items:center;color:var(--ink);text-decoration:none;border:1px solid rgba(223,242,228,.25);border-radius:999px;padding:16px 32px;letter-spacing:.06em;font-size:clamp(.95rem,2.4vw,1.05rem);transition:border-color .2s,color .2s}
.cta-ghost:hover{border-color:var(--green);color:var(--green)}
.scrollcue{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);color:var(--dim);animation:bob 2.2s ease-in-out infinite;z-index:2}
@keyframes bob{50%{transform:translate(-50%,8px)}}

/* ---------- cozy start here ---------- */
.cozy{background:
 radial-gradient(90% 70% at 80% 10%,rgba(255,209,102,.07),transparent 60%),
 radial-gradient(70% 60% at 10% 90%,rgba(122,208,224,.05),transparent 55%),
 linear-gradient(180deg,var(--warm),var(--warm2))}
.steps{list-style:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin-top:38px}
.steps li{background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.015));border:1px solid rgba(255,233,163,.14);border-radius:22px;padding:22px 18px;transition:transform .25s,border-color .25s}
.steps li:hover{transform:translateY(-4px);border-color:rgba(255,233,163,.4)}
.steps .ic{font-size:1.7rem;display:block;margin-bottom:12px}
.steps h3{font-size:1.02rem;color:#ffeecb;margin-bottom:6px;letter-spacing:-.01em}
.steps p{color:#b9c7ba;font-size:.85rem;line-height:1.55}
.cozy .cta-primary{margin-top:34px}

/* ---------- world ---------- */
.world{background:linear-gradient(180deg,var(--warm2),#081210 55%,#04080a)}
.sec-bg{position:absolute;inset:0;width:100%;height:100%;z-index:0;opacity:.55}
.chips{list-style:none;display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.chips li{border:1px solid var(--line);border-radius:999px;padding:9px 16px;font-size:.86rem;color:#cfe0d2;background:rgba(6,16,11,.5);backdrop-filter:blur(4px)}
.chips li::before{content:"●";margin-right:8px;font-size:.6rem;vertical-align:2px;color:var(--c,var(--green))}

/* ---------- evolve ---------- */
.dark{background:linear-gradient(180deg,#04080a,#061109 50%,#04080a)}
.evo-wrap{position:relative;margin-top:34px}
#evoTree{width:min(600px,100%);height:auto;display:block;margin:0 auto}
.branch{fill:none;stroke:rgba(90,208,122,.28);stroke-width:3;stroke-linecap:round;stroke-dasharray:6 7;transition:stroke .25s}
.leaf circle{fill:rgba(90,208,122,.09);stroke:rgba(159,232,180,.5);stroke-width:1.6;transition:.25s;cursor:pointer}
.leaf text{fill:#cfe0d2;font-size:13px;font-family:"Bricolage Grotesque",sans-serif;text-anchor:middle}
.leaf:hover circle,.leaf.on circle{fill:rgba(90,208,122,.3);stroke:var(--green)}
.trait-tip{max-width:340px;margin:18px auto 0;padding:16px 20px;text-align:left}
.trait-tip b{color:var(--green2)} .trait-tip p{color:var(--dim);font-size:.88rem;line-height:1.6;margin-top:6px}
.demo-cell-zone{position:absolute;right:2%;top:6%;z-index:2}
.demo-cell{width:64px;height:64px;border-radius:52% 48% 55% 45%/48% 55% 45% 52%;background:radial-gradient(circle at 34% 30%,#b8f5c8,#5ad07a 55%,#1d7a44);box-shadow:0 0 30px rgba(90,208,122,.4);transition:.4s;animation:cfloat 7s ease-in-out infinite alternate}
@keyframes cfloat{to{transform:translate(10px,-14px) rotate(12deg)}}
.demo-cell.t-light{filter:hue-rotate(-18deg) brightness(1.25)}
.demo-cell.t-defense{border-radius:46% 54% 48% 52%/58% 42% 58% 42%;box-shadow:0 0 30px rgba(90,208,122,.4),inset 0 0 0 6px rgba(224,255,230,.25)}
.demo-cell.t-growth{transform:scale(1.35)}
.demo-cell.t-environment{filter:hue-rotate(40deg) saturate(.8)}
.demo-cell.t-colony{box-shadow:0 0 0 12px rgba(90,208,122,.14),0 0 34px rgba(90,208,122,.5)}

/* ---------- colony ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.colony-stage{aspect-ratio:1/1;max-height:520px;border-radius:24px;border:1px solid var(--line);background:radial-gradient(80% 70% at 50% 40%,#0a1810,#050a08);overflow:hidden}
#cvColony{width:100%;height:100%;display:block}
.densities{display:flex;justify-content:space-between;margin-top:22px;color:#6f8a77;font-size:12px}
.densities span{opacity:.4;transition:.4s}.densities span.lit{opacity:1;color:var(--green)}
@media(max-width:820px){.split{grid-template-columns:1fr}.colony-stage{max-height:340px}}

/* ---------- bacteria ---------- */
.alt{background:linear-gradient(180deg,#04080a,#0a1210 50%,#04080a)}
.bact-grid{display:grid;grid-template-columns:5fr 4fr;gap:26px;margin-top:34px;align-items:start}
.vignette{padding:10px}
#cvBact{width:100%;aspect-ratio:16/10;display:block;border-radius:12px}
.cap{color:var(--dim);font-size:.82rem;padding:10px 8px 6px;font-family:"IBM Plex Mono",monospace}
.who{list-style:none;display:grid;gap:10px}
.who li{display:flex;gap:12px;align-items:flex-start;background:rgba(8,18,12,.55);border:1px solid rgba(255,255,255,.05);border-radius:14px;padding:12px 14px;transition:border-color .2s,transform .2s;cursor:default}
.who li:hover{border-color:var(--c);transform:translateX(4px)}
.who i{width:14px;height:14px;border-radius:50% 42% 55% 45%;background:var(--c);flex:none;margin-top:4px;box-shadow:0 0 10px var(--c)}
.who b{color:#fff;font-size:.95rem}
.who small{display:block;color:var(--dim);font-size:.82rem;margin-top:3px;line-height:1.5}
@media(max-width:820px){.bact-grid{grid-template-columns:1fr}}

/* ---------- reactor zoom ---------- */
.tall{padding:0}
.zoom-pin{position:sticky;top:0;height:100svh;display:flex;flex-direction:column;justify-content:flex-end;padding:0 clamp(16px,6vw,60px) 7svh;overflow:hidden;background:linear-gradient(180deg,#04080a 0%,#050d09 60%,#020604)}
.zoom-layers{position:absolute;inset:0;display:grid;place-items:center}
.z-cell{width:26vmin;height:26vmin;border-radius:50% 46% 54% 50%/48% 54% 46% 52%;background:radial-gradient(circle at 35% 30%,#c2f7cf,#5ad07a 55%,#175c33);box-shadow:0 0 60px rgba(90,208,122,.35);will-change:transform,opacity}
.z-reactor{position:absolute;inset:0;display:grid;place-items:center;opacity:0;will-change:transform,opacity}
.glass-tube{position:relative;width:min(300px,56vw);height:min(430px,62vh);border-radius:60px;border:3px solid rgba(170,205,185,.35);background:linear-gradient(180deg,rgba(160,200,180,.06),rgba(160,200,180,.02));box-shadow:inset 0 0 60px rgba(120,220,160,.06),0 30px 80px rgba(0,0,0,.6)}
.culture{position:absolute;left:6px;right:6px;bottom:6px;top:26%;border-radius:0 0 54px 54px;background:linear-gradient(180deg,rgba(90,208,122,.55),rgba(35,110,65,.85));animation:slosh 6s ease-in-out infinite alternate}
@keyframes slosh{to{filter:hue-rotate(-14deg) brightness(1.12)}}
.led-strip{position:absolute;left:-14px;top:12%;bottom:12%;width:6px;border-radius:4px;background:repeating-linear-gradient(180deg,#ffe9a3 0 10px,rgba(255,233,163,.15) 10px 16px);box-shadow:0 0 18px rgba(255,233,163,.6)}
.tube-l,.tube-r{position:absolute;width:8px;height:34%;background:linear-gradient(180deg,rgba(190,215,200,.5),rgba(190,215,200,.15));border-radius:6px}
.tube-l{left:18%;top:-12%}.tube-r{right:22%;top:-16%;height:26%}
.glare{position:absolute;left:12%;top:4%;width:22%;height:80%;border-radius:40px;background:linear-gradient(100deg,rgba(255,255,255,.14),transparent 60%);pointer-events:none}
.readouts{position:absolute;bottom:calc(7svh + 6px);left:0;right:0;display:flex;gap:14px;justify-content:center;color:#9fd8ae;font-size:clamp(10px,2vw,13px);opacity:0}
.zoom-copy{position:relative;z-index:2;text-align:left;max-width:520px}

/* ---------- tycoon ---------- */
.upcards{display:flex;gap:10px;flex-wrap:wrap;margin-top:30px}
.upcard{flex:1 1 150px;background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.01));border:1px solid rgba(255,255,255,.09);border-radius:16px;padding:16px 14px;color:var(--ink);font-family:inherit;text-align:left;cursor:pointer;transition:border-color .2s,transform .2s,background .2s}
.upcard span{display:block;font-weight:700;letter-spacing:.04em;margin-bottom:6px}
.upcard small{color:var(--dim);font-size:.78rem;line-height:1.4;display:block}
.upcard:hover{transform:translateY(-3px);border-color:rgba(90,208,122,.5)}
.upcard.on{border-color:var(--green);background:linear-gradient(180deg,rgba(90,208,122,.14),rgba(90,208,122,.03));box-shadow:0 8px 30px rgba(90,208,122,.12)}
.upcard.locked{opacity:.4;cursor:not-allowed}
.preview{display:grid;grid-template-columns:auto 1fr;gap:26px;align-items:center;margin-top:26px;padding:24px}
.mini-reactor{position:relative;width:120px;height:170px;border-radius:26px;border:2px solid rgba(170,205,185,.35);background:#071310;overflow:hidden}
.mini-reactor i{position:absolute;opacity:0;transition:opacity .5s,transform .5s}
.mr-culture{inset:auto 4px 4px 4px;height:52%;border-radius:0 0 20px 20px;background:linear-gradient(180deg,rgba(90,208,122,.6),rgba(35,110,65,.9))}
.stat-line{grid-column:1/-1;color:var(--dim);font-size:.9rem}
.stat-line b{color:var(--green);font-size:1.3rem;margin-left:10px}
.mini-reactor.has-culture .mr-culture{opacity:1}
.mr-led{left:-5px;top:14%;width:4px;height:60%;border-radius:3px;background:repeating-linear-gradient(180deg,#ffe9a3 0 6px,transparent 6px 10px);box-shadow:0 0 12px #ffe9a3}
.mini-reactor.has-led .mr-led{opacity:1}
.mr-co2{right:-8px;top:8%;width:14px;height:34%;border-radius:7px;background:linear-gradient(180deg,rgba(190,215,200,.6),transparent)}
.mini-reactor.has-co2 .mr-co2{opacity:1}
.mr-pump{left:8px;bottom:8px;width:26px;height:14px;border-radius:6px;background:#2fa05c}
.mini-reactor.has-mix .mr-pump{opacity:1;animation:spinpump 1.2s linear infinite}
@keyframes spinpump{50%{transform:rotate(8deg)}}
.mr-sense{right:10px;top:10px;width:10px;height:10px;border-radius:50%;background:#8fd4ff;box-shadow:0 0 10px #8fd4ff}
.mini-reactor.has-sensor .mr-sense{opacity:1}
.mr-harv{left:50%;top:-8px;width:20px;height:12px;border-radius:4px;background:#ffd166;transform:translateX(-50%)}
.mini-reactor.has-harvest .mr-harv{opacity:1}

/* ---------- final CTA + footer ---------- */
.cta-final{text-align:center;background:radial-gradient(100% 90% at 50% 110%,#0c2416,#04080a 70%)}
.free-note{color:#57705f;font-size:.8rem;margin-top:16px;font-family:"IBM Plex Mono",monospace}
.sfooter{display:flex;gap:22px;align-items:center;justify-content:center;padding:34px 20px 90px;color:#57705f;font-size:.85rem;background:#04080a}
.sfooter a{color:#8fb09a;text-decoration:none}
.sfooter a:hover{color:var(--green)}

/* ---------- game-mode body state ---------- */
body.playing #site{display:none}
body.playing{overflow:hidden}
body.playing .hud,body.playing .actions{display:flex}
.hud[hidden],.actions[hidden],.viewtag[hidden]{display:none!important}

@media (prefers-reduced-motion:reduce){
  .rays,.scrollcue,.demo-cell,.culture,.mr-pump{animation:none!important}
  *{scroll-behavior:auto!important}
}