:root{--paper:#f7f8ef;--ground:#e4e6dc;--ink:#203e35;--ink-2:#315c48;--muted:#6c796c;--line:#d7decf;--accent:#b65032;--chip:#e9eddf;--f-body:Thonburi,"Noto Sans Thai",Tahoma,sans-serif;--f-head:"Noto Serif Thai",Thonburi,"Noto Sans Thai",serif;--f-mono:"IBM Plex Mono",ui-monospace,Menlo,monospace;color-scheme:light}*{box-sizing:border-box}html,body{height:100%}body{margin:0;background:var(--ground);color:var(--ink);font-family:var(--f-body);font-size:14px;overflow:hidden;-webkit-font-smoothing:antialiased}button{font:inherit;color:var(--ink);cursor:pointer;border:1px solid var(--line);background:var(--paper);border-radius:5px;min-height:38px;padding:7px 12px;transition:background .18s,color .18s}button:hover{background:#e0e7d8}button:focus-visible,a:focus-visible{outline:3px solid var(--accent);outline-offset:3px}button:disabled{opacity:.4;cursor:default}a{color:#965038;text-underline-offset:4px}#app{display:grid;grid-template-columns:360px minmax(0,1fr);height:100%}#story{display:flex;flex-direction:column;background:var(--paper);border-right:1px solid var(--line);min-height:0;z-index:5}#story header{padding:24px 28px 18px;border-bottom:1px solid var(--line)}.wordmark{font:800 34px/1.15 var(--f-body);letter-spacing:-1px;margin:0}.wordmark small{display:block;font:400 11.5px/1.5 var(--f-body);color:var(--muted);letter-spacing:0;margin-top:4px}.scroll{padding:22px 28px 14px;overflow:auto;flex:1;min-height:0}.eyebrow{font:500 11px/1.4 var(--f-body);letter-spacing:.04em;color:var(--accent);margin:0 0 10px}#title{font:600 23px/1.45 var(--f-head);letter-spacing:-.3px;margin:0 0 14px;text-wrap:balance}.photo{margin:0 0 16px;border:1px solid var(--line);border-radius:6px;overflow:hidden;background:#fbfbf6}.photo .main{display:block;width:100%;aspect-ratio:4/3;object-fit:cover;background:#e9ebe2}.photo .thumbs{display:flex;gap:4px;padding:4px;border-top:1px solid var(--line)}.photo .thumbs button{padding:0;min-height:0;border:2px solid transparent;border-radius:3px;overflow:hidden;width:56px;height:42px;flex:none;background:#e9ebe2}.photo .thumbs button.on{border-color:var(--accent)}.photo .thumbs img{display:block;width:100%;height:100%;object-fit:cover}.photo figcaption{font-size:11px;line-height:1.6;color:#4f5f52;padding:7px 10px 8px;border-top:1px solid var(--line)}.photo figcaption small{display:block;color:var(--muted);font-size:10.5px}.photo figcaption a{color:#6c7761}.photo[hidden]{display:none}.plan{margin:0 0 16px;border:1px solid var(--line);border-radius:6px;background:#fbfbf6}.plan svg{display:block;width:100%;height:auto}.plan .pz{cursor:pointer;transition:opacity .15s}.plan .pz:hover{opacity:.42!important}.plan .pz:focus-visible{outline:none;stroke:#b65032;stroke-width:.8}.plan figcaption{font:400 10.5px/1.5 var(--f-mono);color:var(--muted);padding:6px 10px;border-top:1px solid var(--line)}#body p{font-size:14px;line-height:1.85;margin:0 0 14px;max-width:62ch}.question{font-size:13px;line-height:1.85;padding-left:14px;border-left:2px solid var(--accent);color:#5b6959;margin:4px 0 16px}.note{font-size:12px;line-height:1.7;color:var(--muted);padding-left:14px;border-left:2px solid var(--line);margin:0 0 16px}.quiz{border:1px solid var(--line);border-radius:6px;padding:12px 14px;margin:0 0 16px;background:#fbfbf6}.quiz h3{margin:0 0 8px;font:600 13px/1.5 var(--f-body)}.quiz .opts{display:flex;flex-direction:column;gap:6px}.quiz button{text-align:left;font-size:13px;min-height:34px;padding:6px 10px;background:var(--paper)}.quiz button.ok{border-color:#5f8f6c;background:#e3eedf}.quiz button.no{border-color:var(--accent);background:#f6e6df}.quiz .why{font-size:12.5px;line-height:1.7;color:#4f5f52;margin:8px 0 0}.cite{font-size:11px;line-height:1.8;color:var(--muted)}.cite a{color:#6c7761}.navrow{display:flex;gap:8px;padding:12px 28px;border-top:1px solid var(--line)}.navrow button{flex:1;font-size:13px}.primary{background:var(--ink);color:var(--paper);border-color:var(--ink)}.primary:hover{background:var(--ink-2)}#story footer{padding:12px 28px 16px;border-top:1px solid var(--line);font-size:10.5px;line-height:1.8;color:var(--muted)}.mode-chip{display:inline-block;padding:3px 8px;background:var(--chip);color:#51614b;border-radius:3px;font-size:10.5px}.textbtn{border:0;background:transparent;padding:0;min-height:24px;font-size:10.5px;color:var(--muted);text-decoration:underline;text-underline-offset:3px}.textbtn:hover{background:transparent;color:var(--ink)}#world{position:relative;overflow:hidden;min-width:0;background:var(--ground)}#stage{position:absolute;inset:0}#stage canvas{display:block;width:100%;height:100%;touch-action:none}.heading{position:absolute;left:30px;top:24px;pointer-events:none;z-index:2}.heading span{font:500 10px/1 var(--f-mono);letter-spacing:.2em;color:#64725c}.heading h2{font:500 22px/1.3 var(--f-body);margin:8px 0 2px}.heading p{font-size:11px;color:#6b7763;margin:0}body.dark .heading span,body.dark .heading h2,body.dark .heading p{color:#e8ecdf}.tools{position:absolute;right:20px;top:22px;display:flex;gap:5px;z-index:4;flex-wrap:nowrap;justify-content:flex-end;align-items:center}.tools button{white-space:nowrap}.tools .icon-tool,#cleanTools .icon-tool{display:flex;align-items:center;justify-content:center;min-width:36px;padding:6px 9px}.tools svg,#cleanTools svg{display:block;width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.tools .icon-tool span{font-size:16px;line-height:1}#cleanTools{position:absolute;right:20px;top:22px;z-index:20;display:flex;gap:5px}#cleanTools[hidden]{display:none}#cleanTools button{min-height:34px;background:#f7f8efeb}body.clean #story,body.clean .tools,body.clean .route,body.clean .hint,body.clean .heading,body.clean .burger,body.clean #labels,body.clean .atmo{display:none!important}body.clean #app{grid-template-columns:minmax(0,1fr)}.snapmsg{position:absolute;left:50%;transform:translate(-50%);top:70px;margin:0;z-index:21;font-size:12px;background:var(--ink);color:var(--paper);padding:6px 12px;border-radius:999px;opacity:0;transition:opacity .25s;pointer-events:none}.snapmsg.on{opacity:1}@media(max-width:1480px)and (min-width:861px){.tools{top:104px}.atmo{top:146px!important}#cleanTools{top:22px}}.tools button{font-size:11.5px;min-height:34px;padding:6px 11px;background:#f7f8efeb}.tools button[aria-pressed=true]{background:var(--ink);color:var(--paper);border-color:var(--ink)}.atmo{position:absolute;right:20px;top:64px;bottom:120px;width:310px;z-index:6;background:#f7f8eff7;border:1px solid var(--line);border-radius:8px;display:flex;flex-direction:column;box-shadow:0 10px 30px #203e3524}.atmo[hidden]{display:none}.atmo-head{display:flex;justify-content:space-between;align-items:center;padding:12px 14px;border-bottom:1px solid var(--line);font-size:13px}.atmo-head button{min-height:28px;padding:3px 10px;font-size:12px}.atmo-scroll{overflow:auto;padding:12px 14px 14px;display:flex;flex-direction:column;gap:10px;min-height:0}.presets{display:grid;grid-template-columns:repeat(5,1fr);gap:4px}.presets button{font-size:11.5px;min-height:32px;padding:4px 2px}.presets button[aria-pressed=true]{background:var(--ink);color:var(--paper);border-color:var(--ink)}.range-row{display:grid;grid-template-columns:1fr auto;gap:2px 8px;font-size:12px;color:#4f5f52}.range-row output{font:500 11px var(--f-mono);color:var(--muted);font-variant-numeric:tabular-nums}.range-row input{grid-column:1/-1;width:100%;accent-color:var(--accent);margin:2px 0 0}.check-row{display:flex;align-items:center;gap:8px;font-size:12px;color:#4f5f52}.check-row input{accent-color:var(--accent)}.atmo-group{font:500 10px var(--f-mono);letter-spacing:.12em;color:var(--muted);text-transform:uppercase;border-top:1px solid var(--line);padding-top:10px}.atmo-actions button{width:100%;font-size:12px}#labels{position:absolute;inset:0;pointer-events:none;z-index:3;overflow:hidden}.tag{position:absolute;left:0;top:0;pointer-events:auto;display:flex;align-items:center;gap:8px;padding:5px 10px 5px 5px;background:#f7f8eff0;border:1px solid var(--line);border-radius:4px;cursor:pointer;white-space:nowrap;font-size:12px;line-height:1.25;will-change:transform;transition:opacity .2s;min-height:0;text-align:left}.tag b{display:grid;place-items:center;min-width:22px;height:22px;padding:0 4px;background:#dfe7d6;color:var(--ink);font:600 11px/1 var(--f-mono);border-radius:3px}.tag small{display:block;font-size:10px;color:var(--muted)}.tag.sub{padding:3px 8px;font-size:10.5px;background:#e8f0e0eb}.tag.sub b{min-width:0;height:auto;background:none;padding:0;font-size:9.5px}.tag{--lead:74px}.tag.sub{--lead:50px}.tag:after{content:"";position:absolute;left:18px;top:100%;width:1px;height:var(--lead);background:#203e358c}.tag:before{content:"";position:absolute;left:15.5px;top:calc(100% + var(--lead) - 3px);width:6px;height:6px;border-radius:50%;background:#203e35;box-shadow:0 0 0 2px #f7f8efd9}.tag.on{border-color:var(--accent)}.tag.on b{background:var(--accent);color:#fff}.tag.sel{background:#f1e2d2;border-color:#9e6338}.tag.sel b{background:#8a5230!important;color:#fff}.tag.on:not(.sel) b{background:#6c796c}body.nolabels .tag{display:none}.route{position:absolute;left:50%;transform:translate(-50%);bottom:26px;width:min(820px,calc(100% - 48px));background:#f7f8eff0;border:1px solid var(--line);border-radius:999px;padding:4px;z-index:4;box-shadow:0 4px 14px #203e3514}.route ol{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(7,1fr);gap:2px}.route li button{width:100%;border:0;border-radius:999px;background:transparent;text-align:center;padding:5px 6px;min-height:28px;font-size:11.5px;line-height:1.2;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.route li button span{font:500 10px var(--f-mono);color:var(--muted);margin-right:4px}.route li button.on{background:var(--ink);color:var(--paper)}.route li button.on span{color:#c9d6c8}.hint{position:absolute;left:0;right:0;bottom:7px;margin:0;text-align:center;font-size:10px;color:#6b7763;pointer-events:none;z-index:3}.burger{position:absolute;left:22px;top:22px;z-index:5;width:38px;height:38px;min-height:0;padding:0;display:grid;place-content:center;gap:4px;background:#f7f8efeb}.burger i{display:block;width:16px;height:2px;background:var(--ink);border-radius:2px;transform:none;opacity:1}.burger[aria-pressed=true] i:nth-child(1){transform:translateY(5.6px) rotate(45deg)}.burger[aria-pressed=true] i:nth-child(2){opacity:0}.burger[aria-pressed=true] i:nth-child(3){transform:translateY(-5.6px) rotate(-45deg)}.heading{left:76px!important}#app.nostory{grid-template-columns:minmax(0,1fr)}#app.nostory #story{display:none}.scroll{scrollbar-width:thin;scrollbar-color:#c9d1c0 transparent}.scroll::-webkit-scrollbar,.atmo-scroll::-webkit-scrollbar{width:6px}.scroll::-webkit-scrollbar-thumb,.atmo-scroll::-webkit-scrollbar-thumb{background:#c9d1c0;border-radius:6px}.atmo-scroll{scrollbar-width:thin}#walkbar{position:absolute;left:50%;transform:translate(-50%);bottom:22px;width:min(620px,calc(100% - 48px));background:#f7f8eff5;border:1px solid var(--line);border-radius:8px;padding:10px 14px;display:flex;align-items:center;gap:12px;z-index:5}#walkbar[hidden]{display:none}#walkbar input{flex:1;min-width:0;accent-color:var(--accent)}#walkbar output{font-size:11.5px;color:var(--muted);min-width:96px;text-align:right}#sources{position:fixed;inset:0;z-index:30;display:grid;place-items:center;background:#203e3559;padding:16px}#sources[hidden]{display:none}#sources .box{background:var(--paper);border:1px solid var(--line);border-radius:8px;max-width:600px;max-height:82vh;overflow:auto;padding:22px 26px}#sources h3{margin:0 0 8px;font:600 20px var(--f-head)}#sources p,#sources li{font-size:13px;line-height:1.75}#sources ol{padding-left:20px}#loading{position:fixed;inset:0;z-index:100;display:grid;place-items:center;background:#e8e9df;color:#23463b;padding:86px 24px 70px;overflow:auto;opacity:1;transition:opacity .3s ease}#loading[hidden]{display:none}#loading.is-leaving{opacity:0;pointer-events:none}.loading-brand{position:absolute;left:40px;top:32px;font:400 9px/1 var(--f-mono);letter-spacing:2.6px;color:#64786b}.loading-content{width:min(460px,100%);text-align:center}.loading-art{display:block;width:250px;height:165px;margin:0 auto 25px;fill:none;stroke:#355d4b;stroke-width:1.55;stroke-linejoin:round;stroke-linecap:round}.loading-art .lantern{stroke:#b65032}.loading-art .glass{stroke:#b65032;stroke-width:1.2}.loading-water{stroke:#8b9e8d;animation:loading-river 3s ease-in-out infinite}.loading-boat{transform-origin:118px 124px;animation:loading-boat 3.8s ease-in-out infinite}.loading-lanterns{transform-origin:50px 58px;animation:loading-sway 4.2s ease-in-out infinite}.loading-kicker{font-size:11px;letter-spacing:.08em;color:#657a6a;margin:0 0 12px}.loading-content h2{font:600 42px/1.4 var(--f-body);letter-spacing:-1.1px;margin:0 0 16px;color:#23463b}.loading-copy{font-size:13px;line-height:1.9;color:#607563;margin:0 auto 27px}.loading-track{width:164px;height:2px;background:#c6cfbf;margin:0 auto 16px;overflow:hidden}.loading-track span{display:block;height:100%;width:55%;background:#355d4b;animation:loading-progress 1.8s ease-in-out infinite}#loadMsg{font-size:11px;line-height:1.8;color:#617763;min-height:24px;margin:0 0 12px}.loading-research{display:inline-block;font-size:10px;color:#657a6a;background:transparent;border:0;min-height:0;padding:8px;text-decoration:none}.loading-research:hover{background:transparent;text-decoration:underline}.loading-close{position:absolute;right:28px;top:24px;background:transparent;border-color:#bdc8b6;font-size:11px}.loading-close[hidden]{display:none}.loading-footer{position:absolute;bottom:22px;left:24px;right:24px;text-align:center;font-size:10px;color:#788875;margin:0}#loading[data-state=about] .loading-track{visibility:hidden}@keyframes loading-progress{0%{transform:translate(-110%)}to{transform:translate(200%)}}@keyframes loading-boat{0%,to{transform:translate(-4px,1px) rotate(-1deg)}50%{transform:translate(4px,-1px) rotate(1deg)}}@keyframes loading-river{0%,to{opacity:.5;transform:translate(-3px)}50%{opacity:1;transform:translate(3px)}}@keyframes loading-sway{0%,to{transform:rotate(-1.5deg)}50%{transform:rotate(1.5deg)}}@media(max-width:600px){.loading-brand{left:24px;top:25px;font-size:8px;letter-spacing:1.8px}.loading-content h2{font-size:36px}.loading-art{width:210px;height:140px}.loading-close{top:16px;right:18px}}@media(max-height:650px){#loading{padding-top:65px;padding-bottom:45px}.loading-art{height:92px;margin-bottom:12px}.loading-content h2{font-size:30px;margin-bottom:10px}.loading-copy{margin-bottom:18px}.loading-brand{top:20px}.loading-footer{bottom:12px}}@media(max-height:450px){.loading-art{display:none}}@media(max-width:860px){#app{grid-template-columns:1fr;grid-template-rows:54% 46%}#world{grid-row:1}#story{grid-row:2;border-right:0;border-top:1px solid var(--line)}#story header{display:none}.scroll{padding:16px 18px 10px}#title{font-size:21px}.navrow{padding:10px 18px}#story footer{display:none}.route,.tag small{display:none}.tag{--lead:44px}.tag.sub{--lead:30px}.hint{display:none}#app.nostory{grid-template-columns:1fr;grid-template-rows:100%}.burger{left:10px;top:10px;width:32px;height:32px}.plan{display:block!important}.plan svg{max-height:130px}.heading{display:none}.tools{left:52px;right:10px;top:10px;max-width:none;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;justify-content:flex-start;padding-bottom:2px}.tools::-webkit-scrollbar{display:none}.tools>:first-child{margin-left:auto}.tools button{flex:none}#cleanTools{right:10px;top:10px}.tools button{min-height:30px;padding:4px 7px;font-size:10.5px}.tools .icon-tool{min-width:30px;padding:4px 6px}.atmo{inset:84px 10px 10px;width:auto}.plan{display:none}.photo .main{aspect-ratio:16/9}#walkbar{bottom:10px;width:calc(100% - 20px)}}@media(prefers-reduced-motion:reduce){.tag,#loading{transition:none}.loading-boat,.loading-water,.loading-lanterns,.loading-track span{animation:none}.loading-track span{width:100%;opacity:.6}}