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*{box-sizing:border-box}html,body{margin:0;width:100%;height:100%;overflow:hidden}body{font-family:var(--sans);color:var(--ink);background:var(--sea);font-size:15px;-webkit-font-smoothing:antialiased}button,input,a{-webkit-tap-highlight-color:transparent}button,input{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer;color:inherit}a{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #e98b43;outline-offset:5px}button:disabled{cursor:default;opacity:.45}[hidden]{display:none!important}.sr-only,.skip-link{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link:focus{width:auto;height:auto;clip:auto;z-index:100;top:10px;left:10px;background:white;padding:12px}
.site-header{height:92px;background:var(--paper);display:flex;align-items:center;justify-content:space-between;padding:0 3.4%;gap:24px;border-bottom:1px solid var(--line);position:relative;z-index:12}.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;text-decoration:none;font-weight:650;font-size:22px;letter-spacing:1.5px}.brand small{display:block;font:8px/2 var(--sans);letter-spacing:2.3px;opacity:.62}.brand-mark{width:42px;height:42px;fill:none;stroke:var(--ink);stroke-width:1.2}.brand-mark path:first-of-type{fill:#285c49;stroke:#285c49}.island-navigation{display:flex;gap:26px;align-items:center}.nav-island{font-size:13px;display:flex;gap:8px;align-items:center;border:0;background:none;padding:14px 0;white-space:nowrap;position:relative}.nav-island:after{content:"";height:2px;position:absolute;bottom:4px;left:0;right:0;background:var(--island-color);transform:scaleX(0);transition:transform .2s}.nav-island:hover:after,.nav-island[aria-current="page"]:after{transform:scaleX(1)}.nav-dot{width:6px;height:6px;border-radius:50%;background:var(--island-color)}.index-button{display:flex;gap:9px;align-items:center;border:1px solid var(--line);background:transparent;border-radius:6px;padding:11px 14px;font-size:12px;white-space:nowrap}.index-button svg,.search-field svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.6}.index-button kbd{opacity:.5;font:11px var(--sans);padding-left:8px}
#experience{position:relative;height:calc(100svh - 92px);isolation:isolate;overflow:hidden;background:var(--sea)}#world{position:absolute;inset:0 0 0 15%;transition:left .7s}#world canvas{width:100%;height:100%;display:block;touch-action:none;outline:none}#world-labels{position:absolute;inset:0;pointer-events:none;z-index:4}.introduction{position:absolute;z-index:5;left:4.2%;top:10%;width:320px;pointer-events:none;transition:opacity .4s,transform .6s}.introduction button{pointer-events:auto}.eyebrow{font-size:10px;letter-spacing:2px;font-weight:600;display:flex;align-items:center;gap:10px;margin:0 0 25px}.eyebrow>span{width:21px;height:1px;background:currentColor}.introduction h1{font-family:var(--serif);font-size:clamp(40px,4.3vw,67px);font-weight:600;letter-spacing:1px;line-height:1.5;margin:0 0 21px}.introduction h1 span{color:#226557}.intro-copy{font-size:13px;line-height:2.1;color:#426d68;margin:0 0 30px}.primary-button{background:var(--ink);color:var(--paper);padding:15px 20px;border:1px solid var(--ink);border-radius:4px;font-size:12px;display:flex;align-items:center;gap:26px;box-shadow:0 6px 18px #315f5020}.primary-button:hover{background:#2f5c4c}.primary-button span{font-size:21px;line-height:14px}.intro-footnote{display:flex;align-items:center;gap:14px;margin-top:40px;color:#426d68}.intro-footnote p{font-size:10px;line-height:1.8;letter-spacing:.5px}.small-compass{font-size:30px;font-weight:200}.map-heading{position:absolute;right:3.4%;top:25px;display:flex;gap:16px;flex-direction:column;text-align:right;pointer-events:none}.map-coordinate{font-size:8px;letter-spacing:2px;color:#416d6c}.map-name{font-size:11px;letter-spacing:1px}.map-name i,.footer-author i{font-style:normal;opacity:.4;margin:0 5px}.map-tools{position:absolute;right:25px;bottom:89px;z-index:5;display:flex;flex-direction:column;align-items:center;background:#f6f7edce;border:1px solid #ffffff90;border-radius:6px;box-shadow:0 3px 16px #255c4f10;padding:5px}.map-tools button{width:32px;height:34px;background:none;border:0;font-size:20px;font-weight:300}.map-tools button:hover{background:#d7e4d7;border-radius:3px}.map-tools>span{width:20px;height:1px;background:var(--line);margin:3px}.map-compass{position:absolute;bottom:94px;left:4.2%;width:58px;text-align:center;opacity:.57;pointer-events:none}.map-compass>span{font-size:9px;letter-spacing:2px}.map-compass svg{width:100%;stroke:var(--ink);fill:none;stroke-width:.7}.map-compass path:first-of-type{fill:#376d5c28}.sea-footer{position:absolute;bottom:0;left:0;right:0;z-index:5;height:65px;border-top:1px solid #376d5b20;display:flex;align-items:center;justify-content:space-between;gap:15px;padding:0 3.4%;font-size:9px;color:#3c6b66;background:linear-gradient(0deg,#a1cfcde0,#a1cfcd40);letter-spacing:.3px}.footer-author{display:flex;gap:6px;align-items:center}.status-dot{width:5px;height:5px;border-radius:50%;background:#457f60;display:inline-block;margin-right:3px}.sea-footer button{display:flex;align-items:center;gap:8px;background:none;border:0;padding:8px;font-size:10px}.sea-footer button>span:first-child{font-size:24px;font-weight:300}.exploration-hint{opacity:.75}.scene-loader{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:14px;background:#a3cfce;z-index:10;font-size:12px;letter-spacing:2px;transition:opacity .6s}.scene-loader.leaving{opacity:0;pointer-events:none}.loader-compass{font-size:45px;animation:spin 5s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}
.island-label{position:absolute;left:0;top:0;pointer-events:auto;display:flex;align-items:center;gap:10px;white-space:nowrap;border:1px solid #fff9;border-radius:5px;background:#f6f7edf2;padding:10px 13px;box-shadow:0 5px 20px #215e5520;color:var(--ink);will-change:transform;transition:background .2s,box-shadow .2s}.island-label:before{content:"";width:1px;height:19px;position:absolute;bottom:100%;left:50%;background:#eff4dcb0}.island-label .island-number{color:var(--island-color);font-size:10px;border-right:1px solid var(--line);padding-right:10px;letter-spacing:1px}.island-label strong{display:block;font-size:15px;font-weight:650;line-height:1.4}.island-label small{font-size:9px;display:block;color:var(--muted);margin-top:3px;letter-spacing:.7px}.island-label .label-arrow{font-size:17px;color:var(--island-color);margin-left:6px}.island-label:hover,.island-label.hovered{background:#fff;box-shadow:0 8px 24px #215e553b}.island-label.visited:after{content:"";width:4px;height:4px;border-radius:50%;position:absolute;right:7px;top:7px;background:var(--island-color)}.poi-label{padding:7px 11px;gap:7px;border-radius:4px}.poi-label strong{font-size:11px}.poi-label .island-number{font-size:9px;padding-right:7px}.poi-label.active{background:var(--ink);color:white;border-color:var(--ink)}.poi-label.active .island-number{color:#d6e4cc}.poi-label.active:before{background:var(--ink)}
body.on-island #world{left:0;right:350px}body.on-island .introduction{opacity:0;transform:translateX(-25px);pointer-events:none}body.on-island .introduction button{pointer-events:none}body.on-island .map-heading{right:385px}body.on-island .map-tools{right:374px}.back-to-sea{position:absolute;left:35px;top:25px;z-index:6;border:1px solid #fff8;background:#f6f7edec;border-radius:4px;padding:11px 17px;font-size:12px}.island-panel{position:absolute;right:0;top:0;bottom:65px;width:350px;background:#f7f8efed;border-left:1px solid #ffffff80;z-index:7;overflow:auto;overscroll-behavior:contain;padding:30px 26px;animation:panel-in .4s ease}.island-panel::-webkit-scrollbar{width:5px}.island-panel::-webkit-scrollbar-thumb{background:#c2cfc1;border-radius:5px}@keyframes panel-in{from{opacity:0;transform:translateX(15px)}to{opacity:1;transform:none}}.panel-topline{display:flex;align-items:center;justify-content:space-between;font-size:9px;letter-spacing:1.8px;margin-bottom:19px;color:var(--muted)}.panel-topline span:before{content:"";display:inline-block;width:6px;height:6px;background:var(--island-color);border-radius:50%;margin-right:8px}.panel-close{background:none;border:0;font-size:23px;line-height:1;padding:0 4px;color:var(--muted)}.island-panel h2{font-family:var(--serif);font-size:33px;font-weight:600;margin:0 0 8px;line-height:1.4}.panel-subtitle{font-size:11px;letter-spacing:1px;color:var(--island-color);margin:0 0 18px;font-weight:600}.panel-description{font-size:12px;line-height:1.95;color:#657b70;margin:0 0 22px}.panel-section-title{font-size:10px;letter-spacing:1.2px;margin:24px 0 13px;color:#536b60;display:flex;justify-content:space-between}.topic-button{border:0;border-top:1px solid var(--line);background:none;width:100%;padding:17px 0;display:flex;gap:12px;align-items:flex-start;text-align:left}.topic-button .topic-no{font-size:10px;color:var(--island-color);padding-top:3px;letter-spacing:1px}.topic-button strong{font-size:13px;font-weight:600}.topic-button small{display:block;color:var(--muted);font-size:10px;line-height:1.8;margin-top:5px}.topic-button .topic-arrow{margin-left:auto;font-size:17px;align-self:center;color:var(--island-color)}.topic-button:hover strong{text-decoration:underline;text-underline-offset:4px}.panel-index-link{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding:17px 0;margin-top:15px;text-decoration:none;font-size:11px;color:var(--muted)}.topic-back{background:none;border:0;padding:0;font-size:10px;color:var(--muted);margin-bottom:22px}.island-panel h3{font-family:var(--serif);font-size:26px;margin:0 0 12px;line-height:1.5}.lesson-link{display:block;text-align:left;width:100%;background:#fff9;border:1px solid #dce4d6;padding:14px;margin:10px 0;border-radius:4px}.lesson-link:hover{border-color:var(--island-color);background:white}.lesson-link strong{font-size:12px;font-weight:600;display:block;line-height:1.7}.lesson-link p{font-size:10px;color:var(--muted);line-height:1.8;margin:6px 0}.lesson-link .lesson-action{font-size:10px;color:var(--island-color);display:block;margin-top:10px}.topic-order{font-size:10px;background:#e7ecdf;padding:12px;line-height:1.9;border-radius:3px;color:#5c7160}.fallback{position:absolute;left:30%;right:5%;top:20%;z-index:5}.fallback p{font-family:var(--serif);font-size:24px}.fallback button{margin:8px;padding:15px;background:var(--paper);border:1px solid var(--line);border-radius:5px}.noscript-links{position:fixed;inset:40% 10% auto;z-index:20;background:var(--paper);padding:30px;display:flex;gap:25px}
.library-dialog{position:fixed;margin:auto;width:min(790px,92vw);max-height:min(82svh,850px);border:1px solid #dee5d6;border-radius:10px;padding:30px;background:var(--paper);color:var(--ink);box-shadow:0 30px 100px #173b4155}.library-dialog::backdrop{background:#15383b66;backdrop-filter:blur(7px)}.library-header{display:flex;align-items:flex-start;justify-content:space-between}.library-header .eyebrow{font-size:8px;margin-bottom:13px;color:var(--muted)}.library-header h2{font-family:var(--serif);font-size:29px;font-weight:500;margin:0 0 25px}.icon-button{width:30px;height:30px;background:none;border:0;font-size:25px;color:var(--muted)}.search-field{display:flex;align-items:center;gap:12px;background:white;border:1px solid #cfdbcd;border-radius:5px;padding:0 15px}.search-field input{width:100%;padding:15px 0;background:none;border:0;outline:none;font-size:13px;color:var(--ink)}.library-filters{display:flex;gap:7px;flex-wrap:wrap;margin:17px 0 0}.filter-button{background:none;border:1px solid var(--line);border-radius:30px;padding:7px 12px;font-size:11px}.filter-button[aria-pressed="true"]{background:var(--ink);color:var(--paper)}.library-count{font-size:10px;letter-spacing:.5px;color:var(--muted);margin:20px 0 12px}.library-results{max-height:42svh;overflow:auto;overscroll-behavior:contain}.search-result{display:flex;gap:16px;align-items:center;border:0;border-top:1px solid var(--line);background:none;width:100%;text-align:left;padding:15px 4px}.search-result>span:first-child{font-size:8px;letter-spacing:1px;width:58px;flex-shrink:0;color:var(--island-color)}.search-result div{flex:1}.search-result strong{font-size:12px;font-weight:600;line-height:1.7}.search-result small{display:block;font-size:10px;color:var(--muted);line-height:1.7;margin-top:4px}.search-result>span:last-child{color:var(--muted)}.search-result:hover{background:#e8ede2}.empty-search{text-align:center;font-size:12px;color:var(--muted);padding:45px 20px;line-height:2}
.reader{position:fixed;inset:0;background:var(--paper);z-index:30}.reader-header{height:76px;display:flex;align-items:center;gap:24px;padding:0 28px;border-bottom:1px solid var(--line);background:var(--paper)}.reader-back{border:1px solid var(--line);background:none;padding:10px 13px;border-radius:4px;font-size:11px;white-space:nowrap}.reader-header>div{flex:1;min-width:0}.reader-header>div>span{font-size:9px;letter-spacing:1px;color:var(--muted)}.reader-header h2{font-size:14px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin:5px 0 0}.reader-header>a{font-size:11px;text-decoration:none;white-space:nowrap}.reader-body{display:flex;height:calc(100svh - 76px)}#reader-siblings{width:230px;flex-shrink:0;overflow:auto;padding:25px 16px;border-right:1px solid var(--line);background:#edf1e5}#reader-siblings h3{font-size:10px;letter-spacing:1px;color:var(--muted);margin:0 6px 16px}#reader-siblings button{width:100%;text-align:left;border:0;background:none;border-radius:4px;padding:12px 10px;font-size:11px;line-height:1.8;margin-bottom:3px}#reader-siblings button[aria-current="page"]{background:#dce6d4;color:#235448;font-weight:600}#reader-siblings button:hover{background:#e1e9d9}.reader-content{position:relative;flex:1;min-width:0;background:white}#lesson-frame{width:100%;height:100%;border:0;display:block;background:white}.reader-loading{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:var(--paper);font-size:13px;letter-spacing:1px}
@media(min-width:1600px){.introduction{left:5%;top:13%}#world{left:18%}.map-tools{right:3.4%}.intro-footnote{margin-top:65px}}
@media(max-width:1150px){.site-header{padding:0 25px;gap:15px}.island-navigation{gap:17px}.brand{font-size:19px}.brand-mark{width:35px}.brand small{font-size:7px;letter-spacing:1.7px}.introduction{left:30px;width:255px;top:12%}.introduction h1{font-size:48px}.intro-copy{font-size:11px}.intro-footnote{margin-top:26px}.eyebrow{font-size:9px}.index-button kbd{display:none}.map-coordinate{font-size:7px}.footer-author{font-size:8px}.exploration-hint{font-size:8px}.island-label{padding:9px 11px;gap:8px}.island-label strong{font-size:13px}.island-label small{font-size:8px}}
@media(max-width:900px){.site-header{height:78px;padding:0 22px}.island-navigation{gap:14px}.nav-island{font-size:11px;gap:5px}.brand{font-size:17px;gap:8px}.brand-mark{width:30px}.brand small{font-size:6px}.index-button{padding:10px}.index-button>span{display:none}#experience{height:calc(100svh - 78px)}.introduction{top:25px;left:28px;width:auto}.introduction h1{font-size:38px;line-height:1.45;margin-bottom:12px}.introduction h1 br{display:none}.introduction .eyebrow{margin-bottom:12px;font-size:8px}.intro-copy{font-size:11px;line-height:1.8;margin-bottom:15px}.intro-copy br{display:none}.primary-button{padding:11px 15px;font-size:11px;gap:18px}.intro-footnote{display:none}#world{inset:110px 0 20px}.map-heading{top:30px;right:25px}.map-name{font-size:9px}.map-coordinate{display:none}.map-compass{left:25px;bottom:83px;width:44px}.sea-footer{height:54px;padding:0 22px}.footer-author i,.footer-author{font-size:8px}.exploration-hint{display:none}.map-tools{right:18px;bottom:74px}body.on-island #world{left:0;top:0;right:320px;bottom:35px}.island-panel{width:320px;bottom:54px;padding:25px 22px}body.on-island .map-heading{display:none}body.on-island .map-tools{right:336px}.back-to-sea{left:20px;top:20px}}
@media(max-width:620px){.site-header{height:72px;padding:0 18px;gap:10px}.brand{font-size:18px;letter-spacing:1px}.brand small{font-size:6px}.island-navigation{position:fixed;z-index:9;bottom:59px;left:14px;right:14px;justify-content:space-around;gap:0;background:#f6f7edf5;border:1px solid #fff9;border-radius:7px;box-shadow:0 3px 16px #3b6b5820;padding:3px 5px}.nav-island{font-size:10px;padding:12px 8px;gap:5px}.nav-island:after{bottom:5px}.index-button{border:0;padding:10px}.index-button>span{display:inline;font-size:10px}#experience{height:calc(100svh - 72px)}.introduction{top:26px;left:22px;right:20px}.introduction h1{font-size:34px;line-height:1.55;margin-bottom:10px;letter-spacing:0}.introduction .eyebrow{font-size:8px;letter-spacing:1px;margin-bottom:10px}.intro-copy{font-size:10px;line-height:1.9;margin-bottom:15px;max-width:260px}.intro-copy br{display:block}.primary-button{padding:10px 13px;font-size:10px;gap:18px}.map-heading{display:none}#world{inset:135px 0 86px}.island-label{padding:7px 9px;gap:6px;border-radius:4px}.island-label .island-number{padding-right:6px;font-size:8px}.island-label strong{font-size:11px}.island-label small{font-size:7px;margin-top:2px}.island-label .label-arrow{font-size:12px;margin-left:0}.island-label:before{height:11px}.map-tools{right:14px;bottom:122px;padding:2px}.map-tools button{width:28px;height:29px;font-size:18px}.map-tools>span{margin:2px}.map-compass{left:16px;bottom:123px;width:35px}.map-compass>span{font-size:7px}.sea-footer{height:48px;padding:0 15px}.footer-author{font-size:8px;gap:3px}.footer-author i{display:none}.sea-footer button{padding:5px 0;font-size:8px;gap:4px}.sea-footer button>span:first-child{font-size:20px}.footer-author .status-dot{display:none}.island-panel{top:auto;left:0;right:0;bottom:110px;width:100%;max-height:40%;padding:18px 22px;border-left:0;border-top:1px solid #fff;border-radius:14px 14px 0 0;box-shadow:0 -5px 25px #28554310}.island-panel h2{font-size:25px}.panel-topline{font-size:8px;margin-bottom:10px}.panel-subtitle{margin-bottom:10px;font-size:10px}.panel-description{font-size:11px;line-height:1.8;margin-bottom:12px}.panel-section-title{margin:15px 0 8px}.topic-button{padding:12px 0}.topic-button strong{font-size:12px}.topic-button small{font-size:9px}.panel-index-link{margin-top:5px;padding:12px 0}.topic-back{margin-bottom:14px}.island-panel h3{font-size:23px}.lesson-link{padding:12px}.lesson-link strong{font-size:11px}.back-to-sea{left:16px;top:16px;padding:9px 12px;font-size:10px}body.on-island #world{inset:25px 0 38%}body.on-island .map-tools{right:14px;bottom:auto;top:15px}.poi-label{padding:6px 8px;gap:4px}.poi-label strong{font-size:9px}.poi-label .island-number{padding-right:4px;font-size:7px}.library-dialog{padding:22px 18px;width:94vw;max-height:86svh}.library-header h2{font-size:24px}.library-header .eyebrow{font-size:7px}.search-field input{font-size:12px}.filter-button{font-size:10px;padding:7px 10px}.library-results{max-height:46svh}.search-result{gap:9px}.search-result>span:first-child{width:44px;font-size:7px}.reader-header{height:71px;padding:0 13px;gap:12px}.reader-back{padding:9px;font-size:9px}.reader-header h2{font-size:11px}.reader-header>a{font-size:9px}.reader-header>div>span{font-size:8px}.reader-body{height:calc(100svh - 71px);flex-direction:column}#reader-siblings{width:100%;flex-shrink:0;max-height:105px;display:flex;gap:6px;padding:10px;overflow:auto;border-right:0;border-bottom:1px solid var(--line)}#reader-siblings h3{display:none}#reader-siblings button{width:150px;flex-shrink:0;font-size:9px;padding:7px 10px;margin:0}.reader-content{min-height:0}.fallback{left:20px;right:20px;top:40%}.fallback p{font-size:18px}.fallback button{font-size:12px;padding:12px;margin:4px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}

@media(max-height:800px) and (min-width:901px){.intro-footnote{display:none}}