/* Natural history expands the approved world without changing its nine-scene camera. */
.history-sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
.history-nav-entry{color:var(--gold)}
#menu-dialog .history-menu-entry{display:block;font:24px var(--serif);color:var(--gold);text-align:left;margin-top:20px;padding:14px 0}
.plant-study-links .history-entry{color:var(--gold)}
#history-dialog{width:min(1440px,calc(100% - 32px));max-width:none;max-height:95svh;padding:0;background:#0b2018;color:var(--stone);border:1px solid #c9a96b4d;overflow:auto}
.history-room{isolation:isolate}
.history-header{display:flex;justify-content:space-between;align-items:center;padding:24px 34px 22px;background:#0b2018;position:sticky;top:0;z-index:5;border-bottom:1px solid #c9a96b30}
.history-header .eyebrow{font-size:9px;letter-spacing:.21em;display:block;margin:0 0 8px}
.history-header h2{font:32px/1.1 var(--serif);margin:0}
.history-header-actions{display:flex;align-items:center;gap:24px;flex:none}
#history-dialog .close-dialog{position:static;font-size:28px;width:44px;height:44px;flex:none;margin:0;padding:0;color:var(--stone)}
.history-cinema{display:grid;grid-template-columns:1.08fr 1fr;min-height:440px;height:clamp(440px,58svh,650px)}
.history-landscape{margin:0;position:relative;min-width:0;overflow:hidden;background:#14291f;isolation:isolate}
.history-pictures,.history-pictures::after,.history-pictures img{position:absolute;inset:0;width:100%;height:100%}
.history-pictures img{object-fit:cover;opacity:0;transform:scale(1.06);transition:opacity 1.1s ease,transform 16s linear}
.history-pictures img.active{opacity:1;transform:scale(1)}
.history-pictures::after{content:'';background:linear-gradient(180deg,#051b1425,transparent 30%,#061710df 94%),linear-gradient(90deg,#06171035,transparent 60%)}
.history-time{position:absolute;left:8%;right:8%;bottom:76px;text-shadow:0 2px 18px #0009}
.history-time .eyebrow{font-size:10px;margin:0 0 10px;color:#f2dfb4}
#history-date{font:clamp(33px,4vw,62px)/1.08 var(--serif);letter-spacing:-.035em;margin:0;max-width:490px;color:#f5ecdc}
.history-time-thread{display:flex;align-items:center;gap:12px;margin:22px 0 16px;max-width:200px}
.history-time-thread i{height:1px;background:#dcc18c99;flex:1}.history-time-thread span{width:5px;height:5px;border:1px solid #dcc18c;transform:rotate(45deg)}
.history-time-note{font:italic 17px/1.5 var(--serif);color:#eee0c3;margin:0}
.history-landscape figcaption{position:absolute;bottom:20px;left:8%;right:8%;font:9px/1.6 var(--sans);color:#dbd8c8;max-width:440px}
.history-reading{padding:36px 40px 30px;overflow-y:auto;scrollbar-color:#8d7953 #10281e;min-width:0;overscroll-behavior:contain}
.history-record[hidden]{display:none}
.history-record>.eyebrow{font-size:9px;letter-spacing:.18em;margin-bottom:18px}
.history-record h3,.history-record h2{font:clamp(32px,3vw,44px)/1.1 var(--serif);letter-spacing:-.025em;margin:0 0 14px;color:#f0e7d8}
.history-place{font:10px/1.7 var(--sans);letter-spacing:.05em;color:#c9b583;margin-bottom:20px}
.history-body{font:14px/1.85 var(--sans);color:#d4d9c9;margin-bottom:20px}
.history-kind{font:10px/1.6 var(--sans);color:#dfc58d;margin:0 0 18px}.history-kind span{font-size:18px;vertical-align:middle;margin-right:5px}
.history-evidence{border-top:1px solid #c9a96b45;border-bottom:1px solid #c9a96b45;padding:15px 0;font:12px/1.8 var(--sans);color:#cbd2be}
.history-evidence summary{cursor:pointer;font:11px/1.7 var(--sans);color:#eee0c3;min-height:25px;list-style-position:inside}
.history-evidence summary:focus-visible{outline:2px solid var(--gold);outline-offset:5px}
.history-evidence[open] summary{margin-bottom:16px}
.history-limit strong{display:block;color:#e5c690;font-size:10px;letter-spacing:.05em;margin-bottom:7px}
.history-sources{display:flex;flex-direction:column;gap:15px}.history-sources a{font-size:11px;color:#e7c788;text-decoration:underline;text-underline-offset:4px}.history-source-title{display:block;font-size:10px;color:#b8c3b1;margin-top:4px}
.history-controls{padding:16px 34px 20px;background:#0a1c15;border-top:1px solid #c9a96b35}
.history-control-top{display:flex;gap:25px;align-items:center;justify-content:space-between}
.history-pager{display:flex;gap:15px;align-items:center;white-space:nowrap}.history-pager button{font-size:23px;min-width:44px;min-height:44px;border:1px solid #c9a96b40}.history-pager button:hover{border-color:var(--gold)}
#history-count{font:11px var(--sans);letter-spacing:.15em;color:#e2cb98}
#history-play{font:11px var(--sans);padding:12px 0;color:#e3c991;white-space:nowrap}
.history-select-label{font:9px/1.4 var(--sans);color:#aebfa8;display:flex;align-items:center;gap:12px}.history-select-label select{font:11px var(--sans);max-width:260px;width:23vw;min-width:160px;color:var(--stone);background:#122c20;border:1px solid #c9a96b50;padding:11px}
.history-timeline{display:flex;position:relative;gap:0;margin:16px 0 8px;overflow-x:auto;padding-bottom:4px;scrollbar-width:thin}
.history-timeline button{flex:1;min-width:48px;text-align:left;font:9px var(--sans);padding:0 0 5px;position:relative;color:#93a88d}
.history-timeline button>span{display:block;padding:8px 0}.history-timeline button i{display:block;height:1px;background:#c9a96b48;width:100%;margin:5px 0 14px}.history-timeline button i::before{content:'';display:block;height:5px;width:5px;position:relative;top:-2px;background:#7e8d6b;border-radius:50%}
.history-timeline button small{display:block;font:8px/1.4 var(--sans);max-width:76px;padding-right:6px}
.history-timeline button{display:flex;flex-direction:column;align-items:stretch;justify-content:flex-start}.history-timeline button i{flex:none}.history-timeline button small{min-height:24px}
.history-timeline button[aria-current=step]{color:#ffe0a3}.history-timeline button[aria-current=step] i::before{background:#eac980;box-shadow:0 0 0 4px #c9a96b35}
.history-footnote{display:flex;justify-content:space-between;align-items:center;gap:16px;padding-top:10px;color:#adbaa6;font:9px/1.7 var(--sans)}.history-footnote a,.history-footnote button{color:#d4bc88;font-size:10px;padding:8px 0}
#history-method{border-top:1px solid #c9a96b40;margin-top:16px;padding-top:24px;font:12px/1.8 var(--sans);max-width:960px;color:#c6cebc}#history-method h3{font-size:27px}
.history-clocks{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}.history-clocks p{font:12px/1.8 var(--sans);color:#c6cebc}.history-clocks strong{display:block;font:22px var(--serif);color:var(--gold);margin-bottom:12px}
.history-return p{font:italic 17px/1.6 var(--serif);color:#c5cdb5;margin:20px 0 3px}.history-return .text-link{display:flex;width:max-content;max-width:100%;font-size:11px;margin-top:8px;padding:12px 0}
.history-revealing{animation:history-reveal .5s ease both}@keyframes history-reveal{from{opacity:.25;transform:translateY(7px)}to{opacity:1;transform:translateY(0)}}
.history-playing .history-time-thread i{animation:history-thread 28s linear infinite;transform-origin:left}@keyframes history-thread{from{transform:scaleX(.05)}to{transform:scaleX(1)}}
.history-page{background:#0b2018;color:var(--stone)}.history-page-header{display:flex;align-items:center;justify-content:space-between;padding:25px 5%;border-bottom:1px solid #c9a96b38;gap:25px}.history-page-header>a:last-child{font-size:11px;color:var(--gold)}
.history-page main{max-width:1180px;margin:auto;padding:0 6% 80px}.history-page-intro{padding:90px 0 50px;max-width:780px}.history-page-intro h1{font:clamp(54px,8vw,96px)/1.08 var(--serif);letter-spacing:-.03em;margin-bottom:30px}.history-page-intro h1 em{color:var(--gold);font-weight:400}.history-page-intro>p:not(.eyebrow){font:italic 23px/1.6 var(--serif);color:#d0d6c1}.history-page-intro .history-page-scope{font:11px/1.8 var(--sans)!important;color:#aabc9f!important}
.history-page-hero{margin:0 0 55px}.history-page-hero img{width:100%;height:auto;display:block;max-height:530px;object-fit:cover}.history-page-hero figcaption{font-size:10px;line-height:1.6;color:#a9b6a1;margin-top:12px}
.history-page-method{font:13px/1.9 var(--sans);color:#c5cebc;padding-bottom:35px}.history-page-method h2,.history-bibliography h2{font-size:36px}.history-page-index{display:grid;grid-template-columns:1fr 1fr;gap:0 30px;border-block:1px solid #c9a96b44;padding:20px 0;margin-bottom:65px}.history-page-index a{font:17px/1.6 var(--serif);padding:12px 0}.history-page-index span{font:10px var(--sans);color:var(--gold);margin-right:16px}
.history-page .history-record{max-width:780px;padding:0 0 65px;margin:0 auto 45px;border-bottom:1px solid #c9a96b30;scroll-margin-top:45px}.history-page .history-body{font-size:16px}.history-page .history-evidence{font-size:13px}.history-bibliography{padding-top:30px}.history-bibliography ol{padding-left:20px}.history-bibliography li{padding:10px 0 14px 10px;font-size:13px;line-height:1.8}.history-bibliography a{color:var(--gold)}.history-bibliography li p{font-size:11px;color:#aebda5;margin:4px 0 0}
@media(max-width:1000px){.history-header{padding:20px 24px}.history-reading{padding:30px 26px}.history-controls{padding:16px 24px}.history-select-label{font-size:0}.history-timeline button{min-width:52px}.history-cinema{grid-template-columns:1fr 1.06fr}.history-record h3{font-size:34px}}
@media(max-width:760px){.site-header .history-nav-entry{display:none}#history-dialog{width:100%;max-height:100svh;height:100svh;border:0;margin:0}.history-header{padding:17px 22px}.history-header h2{font-size:27px}.history-header .eyebrow{font-size:8px}.history-cinema{display:block;height:auto;min-height:0}.history-landscape{height:300px}.history-time{bottom:61px}.history-time .eyebrow{font-size:9px}#history-date{font-size:38px}.history-time-thread{margin:14px 0 10px}.history-time-note{font-size:15px}.history-landscape figcaption{bottom:13px;font-size:8px}.history-reading{overflow:visible;padding:30px 24px}.history-body{font-size:13px}.history-record h3{font-size:35px}.history-controls{padding:15px 24px 24px}.history-control-top{gap:12px;flex-wrap:wrap}.history-pager{gap:10px}.history-select-label{flex:1 0 100%;font-size:9px;justify-content:space-between}.history-select-label select{width:65%;max-width:none;min-width:0}.history-timeline{margin-top:10px}.history-timeline button small{font-size:8px}.history-footnote{flex-wrap:wrap;gap:6px 18px}.history-footnote>span{width:100%}.history-clocks{grid-template-columns:1fr;gap:0}.history-page-header{padding:20px 6%}.history-page-header>a:last-child{font-size:9px;max-width:100px}.history-page-intro{padding-top:60px}.history-page-index{grid-template-columns:1fr}.history-page main{padding-inline:7%}}
@media(prefers-reduced-motion:reduce){.history-pictures img,.history-revealing,.history-playing .history-time-thread i{transition:none;animation:none;transform:none}}
@media(prefers-reduced-motion:reduce){.motion-opt-in:not(.reduced-motion) .history-pictures img{transition:opacity 1.1s ease,transform 16s linear!important}.motion-opt-in:not(.reduced-motion) .history-revealing{animation:history-reveal .5s ease both!important}.motion-opt-in:not(.reduced-motion) .history-playing .history-time-thread i{animation:history-thread 28s linear infinite!important}}
@media(max-width:760px){.history-header-actions{gap:8px;margin-left:10px}.history-header #history-play{font-size:9px;width:70px;white-space:normal;line-height:1.6}.history-header h2{font-size:25px}.history-header>div:first-child{min-width:0}.history-header .eyebrow{max-width:180px}}

/* Edition 13: readable chronology with continuous scene motion. */
#history-dialog{overflow:hidden;height:min(920px,95svh)}
.history-room{height:100%;display:grid;grid-template-rows:auto auto minmax(0,1fr) auto}
.history-header{padding:18px 28px}
.history-acts{display:flex;border-bottom:1px solid #c9a96b30;background:#0a1c15;padding:0 28px;gap:25px;overflow-x:auto}
.history-acts button{min-height:48px;flex:1;white-space:nowrap;font:11px var(--sans);text-align:left;color:#a8b7a0;border-bottom:2px solid transparent}
.history-acts button span{font-size:9px;color:var(--gold);margin-right:10px}.history-acts button[aria-current=step]{color:#f0dfbb;border-color:var(--gold)}
.history-cinema{height:auto;min-height:0}
.history-reading{padding:28px 34px;overscroll-behavior:contain}
.history-record h3{font-size:clamp(28px,3vw,40px)}
.history-record .history-place{color:#d6c49e;font:11px/1.8 var(--sans)}
.history-record>.eyebrow{margin-bottom:12px}
.history-controls{position:relative;padding:9px 28px 12px}
.history-timeline{margin:5px 0 0}.history-timeline button>span{padding:4px 0}.history-timeline button i{margin:4px 0 7px}
.history-timeline button{min-width:64px;min-height:65px}
.history-footnote{padding-top:2px}.history-footnote>span br{display:none}
#history-method{position:absolute;z-index:8;bottom:100%;left:0;right:0;padding:25px 34px;max-height:48svh;overflow:auto;background:#10271f;border:1px solid #c9a96b80;margin:0;max-width:none;box-shadow:0 -20px 60px #0008}
.history-research-bridge{margin:20px 0 0}.history-research-bridge button,.history-research-bridge a{color:var(--gold);font:11px/1.7 var(--sans);text-align:left;min-height:44px;text-decoration:underline;text-underline-offset:5px}
@media(max-width:760px){
 #history-dialog{height:100svh;max-height:100svh}
 .history-header{padding:12px 18px}.history-header h2{font-size:24px}
 .history-acts{padding:0 18px;gap:22px}.history-acts button{flex:none;min-height:44px;font-size:10px}
 .history-cinema{overflow-y:auto;overscroll-behavior:contain}
 .history-landscape{height:240px}.history-reading{overflow:visible;padding:24px}
 .history-controls{padding:8px 18px 9px}.history-control-top{flex-wrap:nowrap;gap:10px}
 .history-pager{gap:7px}.history-pager button{min-width:38px}.history-select-label{flex:1;font-size:0}.history-select-label select{width:100%;font-size:10px;padding:10px 7px;min-height:44px}
 #history-count{font-size:9px;letter-spacing:.02em}
 .history-timeline{display:none}
 .history-footnote{gap:3px 10px}.history-footnote>span{display:none}.history-footnote a,.history-footnote button{font-size:9px;min-height:30px;padding:4px 0}
 .history-footnote:before{content:'Selected milestones · not a proportional timeline';font:8px/1.6 var(--sans);width:100%;color:#adbaa6}
 #history-method{padding:20px 24px}
}
.history-room{grid-template-columns:minmax(0,1fr)}.history-room>*{min-width:0}.history-timeline{max-width:100%}
@media(max-width:760px){.history-select-label{font-size:0!important}}
.history-acts{scrollbar-width:none}.history-acts::-webkit-scrollbar{display:none}.history-act-label{font-weight:400}.history-act-short{display:none;font-weight:400}
@media(max-width:760px){.history-acts{gap:12px;overflow:hidden}.history-acts button{flex:1;white-space:normal;line-height:1.5}.history-act-label{display:none}.history-act-short{display:inline}.history-acts button span{display:block;margin:0 0 3px;font-size:8px}.history-acts button{padding:7px 0;min-height:48px}}
@media(max-width:760px){.history-reading{min-height:100%;box-sizing:border-box}}

/* The visitor chooses a continuous, native-scroll chronology. The surrounding
   valley, its camera and every ambient effect keep their existing behaviour. */
.history-view{display:grid;grid-template-rows:auto minmax(0,1fr);position:relative;min-height:0;min-width:0;overflow:hidden}
.history-view>[hidden]{display:none!important}
.history-view-modes{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 28px;background:#0b2018;border-bottom:1px solid #c9a96b25;z-index:3}
.history-view-modes>div{display:flex;align-items:stretch;gap:22px}
.history-view-modes button{font:10px/1.5 var(--sans);min-height:42px;padding:6px 0;color:#aebba8;border-bottom:2px solid transparent;white-space:nowrap}
.history-view-modes button[aria-pressed=true]{color:#eed29b;border-color:#c9a96b}
.history-scroll-hint{font:9px/1.5 var(--sans);color:#aebba8;text-align:right}
.history-view-modes button:focus-visible,.history-scroll-source:focus-visible,.history-scroll-journey:focus-visible{outline:2px solid #dfbf7f;outline-offset:-3px}
.history-scroll-journey{min-height:0;height:100%;overflow-y:auto;overflow-x:hidden;position:relative;isolation:isolate;scrollbar-color:#ad935f #10281e;background:#10251c;scroll-behavior:auto;overscroll-behavior-y:contain}
.history-scroll-backdrop{position:sticky;top:0;height:var(--history-frame-height,100%);margin-bottom:calc(-1 * var(--history-frame-height,100%));overflow:hidden;pointer-events:none;z-index:-1;background:#10251c}
.history-scroll-backdrop img{position:absolute;inset:-4%;width:108%;height:108%;max-width:none;object-fit:cover;opacity:0;transform:scale(1.04) translateY(var(--history-drift,0px));transition:opacity 1.35s ease,transform .35s ease-out}
.history-scroll-backdrop img.active{opacity:1}
.history-scroll-backdrop::after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,#06171005 5%,#06171055 35%,#061710ef 58%,#061710e8 100%),linear-gradient(0deg,#061710bf,transparent 35%,#06171038)}
.history-scroll-track{position:relative;z-index:1}
.history-scroll-beat{min-height:var(--history-frame-height,540px);box-sizing:border-box;padding:48px 7% 54px 51%;display:flex;align-items:center;position:relative;overflow:hidden}
.history-scroll-beat::before{content:'';position:absolute;left:46%;top:0;bottom:0;width:1px;background:linear-gradient(#c9a96b00,#c9a96b55 15%,#c9a96b55 85%,#c9a96b00)}
.history-scroll-beat::after{content:'';position:absolute;left:calc(46% - 3px);top:56px;width:7px;height:7px;border:1px solid #c9a96b;transform:rotate(45deg);background:#10251c;transition:background .6s ease,box-shadow .6s ease}
.history-scroll-beat.is-current::after{background:#ddc18b;box-shadow:0 0 25px #ddc18b88}
.history-scroll-copy{width:100%;max-width:610px}
.history-scroll-era{font:9px/1.7 var(--sans);letter-spacing:.15em;color:#e1c58e;margin:0 0 16px}
.history-scroll-date{font:italic clamp(22px,2.3vw,33px)/1.25 var(--serif);color:#d2b57d;max-width:490px;margin:0 0 18px}
.history-scroll-title{font:clamp(30px,3.5vw,49px)/1.08 var(--serif);letter-spacing:-.025em;color:#f4ead8;margin:0 0 20px}
.history-scroll-place{font:10px/1.7 var(--sans);color:#d3c7a8;margin:0 0 20px}
.history-scroll-body{font:13px/1.9 var(--sans);color:#e0e2d5;margin:0 0 19px}
.history-scroll-kind{font:9px/1.7 var(--sans);color:#c5cbb5;margin:0 0 10px}
.history-scroll-source{font:11px/1.7 var(--sans);color:#e6c788;text-align:left;padding:10px 0;min-height:44px;text-decoration:underline;text-underline-offset:6px}
.history-scroll-caption{font:9px/1.7 var(--sans);color:#a9b59f;margin:16px 0 0;max-width:460px}
.history-scroll-progress{display:none;position:absolute;height:2px;bottom:0;left:0;right:0;background:#c9a96b22;z-index:4;pointer-events:none}
.history-scroll-progress::before{content:'';display:block;width:100%;height:100%;background:#dfbf83;transform:scaleX(var(--history-scroll-progress,0));transform-origin:left}
.history-scroll-mode .history-scroll-progress{display:block}
.reduced-motion .history-scroll-backdrop img,.reduced-motion .history-scroll-beat::after{transition:none;transform:none}
.reduced-motion .history-scroll-beat::after{transform:rotate(45deg)}
@media(max-width:1000px){.history-scroll-beat{padding-left:44%;padding-right:7%}.history-scroll-beat::before{left:39%}.history-scroll-beat::after{left:calc(39% - 3px)}.history-scroll-backdrop::after{background:linear-gradient(90deg,#06171022,#061710cc 36%,#061710f0 65%,#061710e0)}.history-scroll-hint{display:none}}
@media(max-width:760px){
 .history-view-modes{padding:0 18px}.history-view-modes>div{gap:24px}.history-view-modes button{min-height:38px;font-size:10px}
 .history-scroll-beat{padding:38px 25px 48px 37px;align-items:flex-start}
 .history-scroll-beat::before{left:18px}.history-scroll-beat::after{left:15px;top:43px}
 .history-scroll-backdrop::after{background:linear-gradient(90deg,#061710bd,#061710dd),linear-gradient(0deg,#06171085,transparent 40%)}
 .history-scroll-era{font-size:8px;margin-bottom:13px}.history-scroll-date{font-size:24px;margin-bottom:15px}.history-scroll-title{font-size:34px;margin-bottom:18px}
 .history-scroll-body{font-size:13px;line-height:1.85}.history-scroll-place{margin-bottom:17px}.history-scroll-caption{font-size:8px}
}
@media(prefers-reduced-motion:reduce){body:not(.motion-opt-in) .history-scroll-backdrop img,body:not(.motion-opt-in) .history-scroll-beat::after{transition:none}}

/* A pair of contextual connections keeps history part of the living journey. */
.history-context-connection{margin:22px 0 0;padding-top:14px;border-top:1px solid #c9a96b35}
.history-context-link{display:inline-flex;align-items:center;gap:14px;min-height:44px;padding:0;text-align:left;font:11px/1.8 var(--sans);color:var(--gold);text-decoration:underline;text-underline-offset:5px}
.history-context-link img{width:60px;height:60px;object-fit:contain;flex:none;transition:transform .7s cubic-bezier(.22,1,.36,1)}
.history-context-link:focus-visible{outline:2px solid var(--gold);outline-offset:5px}
.history-scroll-copy .history-context-connection{margin-top:12px;padding-top:10px}
.history-scroll-copy .history-context-link{color:#e6c788}
@media(hover:hover){.history-context-link:hover img{transform:translateY(-3px) scale(1.04)}}
@media(prefers-reduced-motion:reduce){body:not(.motion-opt-in) .history-context-link img{transition:none;transform:none!important}}
.reduced-motion .history-context-link img{transition:none;transform:none!important}