:root{--bg:#02080c;--ink:#f3efe6;--mute:rgba(243,239,230,.64);--amber:#f2b36b;--sea:#7cc9d6;--ivory:#f3ede2;--inkd:#13202a;--gold:#a8834d;--coral:#ff6b4a;--lime:#c8f169}
*{box-sizing:border-box}html{background:var(--bg)}body{margin:0;color:var(--ink);background:var(--bg);font:400 17px/1.6 "Inter Tight",system-ui,sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:var(--amber)}img{max-width:100%}
.serif{font-family:"Instrument Serif",Georgia,serif;font-weight:400}
.eyebrow{font:500 11px/1.3 "Inter Tight";letter-spacing:.3em;text-transform:uppercase;color:var(--amber)}
.skip{position:absolute;left:-999px}.skip:focus{left:10px;top:10px;z-index:99;background:#fff;color:#000;padding:8px}
.nav{position:fixed;inset:0 0 auto;z-index:50;display:flex;justify-content:space-between;align-items:center;padding:18px 4vw;background:linear-gradient(rgba(2,8,12,.55),transparent)}
.brand{font-family:"Instrument Serif";font-size:24px;color:#fff;text-decoration:none;display:flex;align-items:center;gap:10px}
.brand svg{width:26px;height:26px}
.beta{font:600 9px "Inter Tight";letter-spacing:.2em;border:1px solid var(--amber);color:var(--amber);padding:3px 8px;border-radius:20px}
.nav nav{display:flex;gap:22px}.nav nav a{color:#fff;text-decoration:none;font:500 12px "Inter Tight";letter-spacing:.14em;text-transform:uppercase;opacity:.85}
.chap{font:500 11px "Inter Tight";letter-spacing:.22em;color:#fff;text-transform:uppercase;opacity:.8}
/* hero */
.hero{position:relative;height:100svh;min-height:560px;overflow:hidden}
.hero .img{position:absolute;inset:-4%;background-size:cover;background-position:center;transform-origin:50% 60%}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(2,8,12,.45),rgba(2,8,12,.08) 35%,rgba(2,8,12,.88) 90%,var(--bg))}
.letter{position:absolute;left:0;right:0;height:8vh;background:#000;z-index:3}.letter.t{top:0}.letter.b{bottom:0}
.hero .copy{position:absolute;z-index:4;left:6vw;right:6vw;bottom:14vh}
.hero h1{margin:.12em 0 .1em;font:400 clamp(56px,11vw,190px)/.88 "Instrument Serif";letter-spacing:-.025em}
.hero h1 em{color:var(--amber)}
.hero p{max-width:560px;color:var(--mute);font-size:18px}
.tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.tag{font:500 11px "Inter Tight";letter-spacing:.14em;text-transform:uppercase;border:1px solid rgba(243,239,230,.3);border-radius:30px;padding:6px 12px}
.credit{position:absolute;z-index:5;right:4vw;bottom:calc(8vh + 10px);font-size:11px;color:rgba(255,255,255,.6);max-width:52ch;text-align:right}
.credit a{color:rgba(255,255,255,.8)}
/* chapters */
.chapter{position:relative;padding:16vh 6vw;max-width:1500px;margin:0 auto}
.ctitle{display:flex;gap:26px;align-items:baseline;margin-bottom:4vh}
.ctitle .n{font:400 clamp(64px,9vw,140px)/.8 "Instrument Serif";color:transparent;-webkit-text-stroke:1px rgba(243,239,230,.45)}
.ctitle h2{margin:0;font:400 clamp(38px,5.6vw,88px)/.95 "Instrument Serif";letter-spacing:-.02em}
.lead{font:400 clamp(21px,2.3vw,32px)/1.3 "Instrument Serif";max-width:34ch}
.src{font-size:12px;color:var(--mute);margin-top:18px;max-width:100ch}.src a{color:var(--mute)}
.placeholder{border:1px dashed rgba(243,239,230,.35);border-radius:6px;padding:16px 18px;color:var(--mute);font-size:14px;margin-top:18px}
.placeholder b{color:var(--amber);font-weight:500;letter-spacing:.12em;font-size:11px;text-transform:uppercase;display:block;margin-bottom:4px}
.video{aspect-ratio:21/9;margin-top:8vh;border-radius:6px;background:radial-gradient(circle,#0b2a36,#03121a);display:grid;place-items:center;text-align:center;color:var(--mute);border:1px solid rgba(255,255,255,.08)}
.video .play{width:78px;height:78px;border-radius:50%;border:1px solid rgba(255,255,255,.5);display:grid;place-items:center;margin:0 auto 14px;color:#fff}
/* arrival */
.arrival{height:100svh;padding:0;overflow:hidden;max-width:none}
.arrival .frame{position:absolute;inset:0;background-size:cover;background-position:center;clip-path:inset(20% 28% 20% 28% round 8px)}
.arrival .shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(2,8,12,.92),rgba(2,8,12,.55) 45%,rgba(2,8,12,.1) 80%),linear-gradient(0deg,rgba(2,8,12,.9),transparent 50%)}
.arrival .txt{position:absolute;left:6vw;bottom:12vh;z-index:2;max-width:680px}
.facts{display:grid;grid-template-columns:repeat(3,auto);gap:34px;margin-top:26px}
.facts b{display:block;font:400 32px/1 "Instrument Serif"}.facts span{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--mute)}
.arrival .credit{bottom:18px}
.split{display:grid;grid-template-columns:1.1fr 1fr;gap:6vw;align-items:center}
.pic{aspect-ratio:4/3;overflow:hidden;border-radius:6px}.pic img{width:100%;height:118%;object-fit:cover;display:block}
/* descent */
.descent{height:280svh;padding:0;max-width:none}
.descent .stick{position:sticky;top:0;height:100svh;display:grid;place-items:center;overflow:hidden}
.descent .water{position:absolute;inset:0;background:linear-gradient(180deg,#1a7f9a,#0a4a63)}
.descent .rays{position:absolute;inset:-20%;background:repeating-linear-gradient(105deg,rgba(255,255,255,.10) 0 60px,transparent 60px 190px);mix-blend-mode:screen}
.descent .reefup{position:absolute;inset:0;background-size:cover;background-position:center 70%;opacity:0;-webkit-mask:linear-gradient(transparent,#000 55%);mask:linear-gradient(transparent,#000 55%)}
.descent .line{position:absolute;text-align:center;font:400 clamp(32px,5vw,74px)/1.05 "Instrument Serif";max-width:18ch;opacity:0;z-index:3;text-shadow:0 2px 30px rgba(0,0,0,.4)}
.descent .rc{position:absolute;right:4vw;bottom:16px;font-size:11px;color:rgba(255,255,255,.6);z-index:3;opacity:0}.descent .rc a{color:inherit}
/* life */
.mbar{display:flex;align-items:center;gap:22px;margin:4vh 0 2vh;flex-wrap:wrap}
.mbar .big{font:400 clamp(56px,8vw,120px)/.8 "Instrument Serif";min-width:4.2ch}
.months{display:grid;grid-template-columns:repeat(12,1fr);gap:4px;flex:1;min-width:300px}
.months button{all:unset;cursor:pointer;text-align:center;font:500 11px "Inter Tight";letter-spacing:.1em;color:var(--mute);padding:8px 0}
.months button .h{display:block;margin:0 auto 8px;width:70%;background:rgba(124,201,214,.35);border-radius:2px}
.months button[aria-pressed=true]{color:var(--ink)}.months button[aria-pressed=true] .h{background:var(--amber)}
.months button:focus-visible{outline:1px solid var(--amber)}
.stage{display:grid;grid-template-columns:.9fr 1.1fr;gap:5vw;align-items:center;margin-top:4vh}
.arch{aspect-ratio:3/4;border-radius:999px 999px 6px 6px;overflow:hidden;position:relative;background:#0b2029;max-height:76vh;width:100%;margin:0 auto}
.arch img{width:100%;height:100%;object-fit:cover}
.noimg{position:absolute;inset:0;display:grid;place-items:center;text-align:center;color:var(--mute);font-size:13px;padding:24px;background:repeating-linear-gradient(135deg,#071a22 0 12px,#0a222c 12px 24px)}
.info .num{font:400 120px/.8 "Instrument Serif";color:var(--amber)}
.info h3{font:400 clamp(40px,4.6vw,76px)/.95 "Instrument Serif";margin:.15em 0 .1em}
.info .sci{font:italic 400 22px "Instrument Serif";color:var(--mute)}
.info .stat{display:flex;gap:40px;margin-top:26px;padding-top:20px;border-top:1px solid rgba(243,239,230,.16)}
.info .stat b{display:block;font:400 34px/1 "Instrument Serif"}.info .stat small{font-size:11px;color:var(--mute);letter-spacing:.12em;text-transform:uppercase}
.info .cr{font-size:11px;color:var(--mute);margin-top:18px}.info .cr a{color:var(--mute)}
.info .more{display:inline-block;margin-top:16px;font-size:13px}
.deck{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:8vh;perspective:1400px}
.dc{all:unset;cursor:pointer;position:relative;border-radius:18px;overflow:hidden;background:#fffdf7;color:#062a33;display:flex;flex-direction:column;box-shadow:0 24px 60px rgba(0,0,0,.35);transform-style:preserve-3d}
.dc:focus-visible{outline:2px solid var(--amber)}
.dc .im{aspect-ratio:4/3;position:relative;background:#d8ece9;overflow:hidden}.dc .im img{width:100%;height:100%;object-fit:cover}
.dc .im .noimg{color:#3b5a60;background:repeating-linear-gradient(45deg,#e9f4f1 0 10px,#f4faf8 10px 20px);font-size:11px}
.dc .meta{padding:12px 14px 14px}.dc h4{margin:0;font:400 22px/1.05 "Instrument Serif"}.dc .s{font:italic 400 14px "Instrument Serif";opacity:.7}
.dc .row{display:flex;justify-content:space-between;align-items:center;margin-top:8px;font:500 10px "DM Mono",monospace;letter-spacing:.06em}
.dc .n{background:#062a33;color:var(--lime);padding:3px 8px;border-radius:20px}
.stamp{position:absolute;top:10px;right:10px;font:500 10px "DM Mono",monospace;letter-spacing:.1em;color:var(--coral);border:1.5px solid var(--coral);padding:4px 7px;border-radius:5px;transform:rotate(8deg);background:rgba(255,253,247,.88)}
.calendar{margin-top:10vh;overflow-x:auto}
.calendar table{border-collapse:separate;border-spacing:4px;width:100%;min-width:680px}
.calendar th{font:500 10px "DM Mono",monospace;letter-spacing:.08em;color:var(--mute);font-weight:500}
.calendar td.n{font:400 16px "Instrument Serif";white-space:nowrap;padding-right:12px;text-align:right}
.calendar td.n a{color:var(--ink);text-decoration:none}
.calendar td.c{height:28px;border-radius:6px;background:rgba(243,239,230,.05)}
.calendar td.c.cur{outline:1.5px solid var(--amber)}
.toplist{columns:2;font-size:15px;margin-top:20px;color:var(--mute)}.toplist a{color:var(--ink)}
/* heat */
.heatwrap{background:linear-gradient(180deg,var(--bg),#12070a 30%,#12070a 75%,var(--bg))}
.stripes{display:flex;height:30vh;min-height:180px;margin:5vh 0 0}.stripes i{flex:1}
.yrs{display:flex;justify-content:space-between;font:500 11px "Inter Tight";color:var(--mute);margin-top:6px}
.ivory{background:var(--ivory);color:var(--inkd);border-radius:4px;padding:5vw;margin-top:8vh}
.ivory .k{font:600 10px Manrope,"Inter Tight";letter-spacing:.3em;text-transform:uppercase;color:var(--gold)}
.ivory h3{font:300 clamp(40px,5vw,84px)/.95 "Cormorant Garamond",serif;margin:.15em 0 .4em}
.rgrid{display:grid;grid-template-columns:1fr 1.6fr;gap:5vw;align-items:start}
.metric b{font:300 clamp(96px,12vw,170px)/.8 "Cormorant Garamond",serif;display:block}
.metric small{display:block;color:#6f6a60;margin-top:12px}
.ivory .small{font-size:11px;color:#6f6a60}
svg{width:100%;height:auto;display:block}
.links{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.pill{border:1px solid rgba(243,239,230,.25);border-radius:40px;padding:11px 17px;text-decoration:none;color:var(--ink);font-size:14px}
.pill:hover{background:rgba(243,239,230,.08)}
.plan ol{list-style:none;padding:0;margin:5vh 0 0;counter-reset:s;max-width:920px}
.plan li{counter-increment:s;display:grid;grid-template-columns:80px 1fr;padding:24px 0;border-top:1px solid rgba(243,239,230,.14);font:400 clamp(21px,2.3vw,30px)/1.25 "Instrument Serif"}
.plan li::before{content:"0" counter(s);font:500 12px "Inter Tight";letter-spacing:.2em;color:var(--amber);padding-top:10px}
.plan li small{display:block;font:400 14px "Inter Tight";color:var(--mute);margin-top:6px}
.credits{text-align:center;padding:16vh 6vw 10vh;color:var(--mute);font-size:13px}
.credits h3{font:400 44px "Instrument Serif";color:var(--ink);margin:0 0 28px}
.credits dl{display:grid;grid-template-columns:1fr 1.4fr;gap:6px 24px;max-width:980px;margin:0 auto;text-align:left}
.credits dt{text-align:right;letter-spacing:.16em;text-transform:uppercase;font-size:10px;padding-top:4px;color:var(--amber)}
.credits dd{margin:0}.credits a{color:var(--mute)}
footer.site{border-top:1px solid rgba(243,239,230,.12);padding:6vh 6vw;font-size:12px;color:var(--mute);display:grid;grid-template-columns:2fr 1fr;gap:30px}
footer.site a{color:var(--mute)}
/* home */
#map{height:78vh;min-height:460px;border-radius:6px;background:#0a1d26}
.leaflet-tile-pane{filter:saturate(.55) brightness(.75) contrast(1.1) hue-rotate(-8deg)}
.leaflet-popup-content-wrapper{border-radius:6px}.leaflet-popup-content a{font:400 20px "Instrument Serif";color:#062a33}
.regions{display:grid;gap:10vh;margin-top:10vh}
.sgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px;margin-top:3vh}
.sc{position:relative;display:block;aspect-ratio:4/5;border-radius:6px;overflow:hidden;color:#fff;text-decoration:none;background:#0a1d26}
.sc img{width:100%;height:100%;object-fit:cover;transition:transform 1s cubic-bezier(.2,.7,.2,1)}
.sc:hover img{transform:scale(1.06)}
.sc::after{content:"";position:absolute;inset:0;background:linear-gradient(transparent 40%,rgba(2,8,12,.9))}
.sc span{position:absolute;left:16px;right:16px;bottom:14px;z-index:2;font:400 26px/1.05 "Instrument Serif"}
.sc small{display:block;font:500 10px "Inter Tight";letter-spacing:.18em;text-transform:uppercase;color:var(--amber);margin-bottom:6px}
.sc .rg{position:absolute;top:12px;left:12px;z-index:2;font-size:10px;background:rgba(2,8,12,.6);padding:4px 8px;border-radius:20px;color:var(--mute)}
/* species page */
.sphero{min-height:100svh;display:grid;grid-template-columns:1fr 1fr;gap:6vw;align-items:center;padding:14vh 6vw 8vh;max-width:1500px;margin:0 auto}
.sphero h1{font:400 clamp(52px,7vw,120px)/.9 "Instrument Serif";margin:.1em 0}
.bars{display:grid;grid-template-columns:repeat(12,1fr);gap:6px;align-items:end;height:220px;margin-top:4vh}
.bars div{background:var(--amber);border-radius:3px 3px 0 0;position:relative;min-height:2px}
.bars span{position:absolute;bottom:-22px;left:0;right:0;text-align:center;font-size:11px;color:var(--mute)}
.bars em{position:absolute;top:-20px;left:0;right:0;text-align:center;font-size:11px;font-style:normal;color:var(--ink)}
.sitelist{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:10px;margin-top:4vh}
.sitelist a{border:1px solid rgba(243,239,230,.18);border-radius:6px;padding:14px 16px;text-decoration:none;color:var(--ink)}
.sitelist small{display:block;color:var(--mute)}
.idx{columns:3;font-size:15px}.idx a{color:var(--ink);text-decoration:none}.idx li{break-inside:avoid;margin:4px 0}
.prose{max-width:820px}.prose li{margin:10px 0;color:var(--mute)}.prose b{color:var(--ink)}
@media(max-width:820px){
 .nav nav{display:none}.split,.stage,.rgrid,.sphero{grid-template-columns:1fr}.facts{grid-template-columns:1fr 1fr;gap:18px}
 .letter{height:4vh}.hero .copy{bottom:20vh}.hero p{font-size:16px}.credit{bottom:calc(4vh + 8px);left:4vw;right:4vw;text-align:left}
 .months button{font-size:9px;letter-spacing:0}.deck{grid-template-columns:1fr 1fr;gap:10px}.dc h4{font-size:18px}
 .chapter{padding:11vh 6vw}.credits dl{grid-template-columns:1fr}.credits dt{text-align:left}.arrival .frame{clip-path:inset(16% 8% 34% 8% round 8px)}
 .info .num{font-size:80px}.toplist,.idx{columns:1}footer.site{grid-template-columns:1fr}.arch{max-height:60vh;width:80%}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.descent{height:auto}.descent .stick{position:relative;height:auto;min-height:80svh;display:flex;flex-direction:column;justify-content:center;gap:20px;padding:12vh 6vw}.descent .line{position:relative;opacity:1}.descent .reefup{opacity:.35}.descent .rc{opacity:1}.arrival .frame{clip-path:none}}
/* v3: self-hosted responsive images */
.hero .img picture,.arrival .frame picture,.descent .reefup picture{position:absolute;inset:0;display:block}
.hero .img img,.arrival .frame img,.descent .reefup img{width:100%;height:100%;object-fit:cover;display:block}
.descent .reefup img{object-position:center 70%}
.sc picture,.dc .im picture,.arch picture,.pic picture{display:block;width:100%;height:100%}
.pic img{width:100%;height:auto;display:block}
.gallery .gg{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px;margin-top:5vh}
.gallery figure{margin:0;background:#06141b;border-radius:14px;overflow:hidden}
.gallery figure img{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;display:block}
.gallery figcaption{padding:10px 12px 14px;font-size:12px;line-height:1.45;color:var(--mute)}
.gallery figcaption b{display:block;color:var(--ink);font-weight:500;font-size:13px;margin-bottom:3px}
.acc{display:inline-block;font:500 9px "DM Mono",monospace;letter-spacing:.08em;text-transform:uppercase;padding:2px 7px;border-radius:20px;margin-right:6px;vertical-align:1px}
.acc.ok{background:rgba(198,242,107,.14);color:#c6f26b}.acc.near{background:rgba(242,179,107,.16);color:#f2b36b}.acc.hist{background:rgba(124,201,214,.16);color:#7cc9d6}
#map{background:#0b2029}
.maphint{font-size:12px;color:var(--mute)}
#map{position:relative;z-index:0;isolation:isolate}
.leaflet-container svg{width:auto;height:auto;display:inline}
.rv{opacity:0;transform:translateY(30px);transition:opacity .9s cubic-bezier(.2,.7,.2,1),transform .9s cubic-bezier(.2,.7,.2,1)}.ctitle.rv{transform:translateY(50px)}.rv.in{opacity:1;transform:none}@media(prefers-reduced-motion:reduce){.rv{opacity:1;transform:none}}
.ivory .k{color:#7a5520}.ivory a{color:#7a4a12}.ivory .small{color:#5c574e}