/* Switchback: warm paper, pine green, and a valley worth wandering through. */
:root{color-scheme:light;--pine:#142b2a;--ink:#233c36;--paper:#f7f2e6;--muted:#6b7263;--gold:#f0c878;--line:#dcd7c5;--mono:'IBM Plex Mono',monospace;--pixel:'Silkscreen',monospace}
*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--paper);font-family:var(--mono);font-size:16px}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:inherit;text-underline-offset:4px}button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible{outline:3px solid #e89936;outline-offset:4px}button{color:inherit}button:disabled{cursor:wait}button[hidden],[hidden]{display:none!important}.skip-link{position:fixed;top:-100px;left:12px;z-index:1000;background:var(--paper);padding:14px}.skip-link:focus{top:12px}.site-header{height:76px;padding:0 32px;display:flex;align-items:center;gap:28px;background:var(--pine);color:var(--paper);position:relative;z-index:20;border-bottom:1px solid #ffffff18}.wordmark{font-family:var(--pixel);font-size:19px;text-decoration:none;white-space:nowrap;letter-spacing:-1px}.brand-dot{color:var(--gold)}.site-header nav{display:flex;gap:23px;align-items:center;margin-left:auto}.site-header nav a{font-size:13px;text-decoration:none;color:#c7d1c0}.site-header nav a:hover{color:var(--gold)}.header-tools{display:flex;gap:8px}.header-tools button{border:1px solid #ffffff25;background:transparent;color:#d8ddcf;padding:9px 10px;font-size:12px}.header-tools button[aria-pressed=true]{color:var(--gold);border-color:#f0c87860}#menu-toggle{display:none}#mobile-menu{position:absolute;top:76px;left:0;right:0;z-index:30;background:var(--pine);color:var(--paper);padding:24px;display:grid;grid-template-columns:repeat(2,1fr);gap:24px}#mobile-menu a{text-decoration:none;font-size:15px}.world-page{height:100dvh;min-height:420px;overflow:hidden;display:flex;flex-direction:column}.world-page .site-header{flex-shrink:0}#world-stage{position:relative;overflow:hidden;flex:1;min-height:0;background:#53696d;isolation:isolate;touch-action:none}#world-camera{position:absolute;left:0;top:0;width:1536px;height:1024px;transform-origin:0 0;will-change:transform}#world-art{display:block;width:1536px;height:1024px;user-select:none;image-rendering:pixelated}.evening-wash{position:absolute;inset:0;background:linear-gradient(#262c60a8,#213e6440 60%,#101c4266);opacity:0;pointer-events:none;transition:opacity 1.8s}body.evening .evening-wash{opacity:1}#atmosphere{position:absolute;inset:0;pointer-events:none;image-rendering:pixelated}#landmarks{position:absolute;inset:0;pointer-events:none}.landmark{position:absolute;transform:translate(-50%,-100%);pointer-events:auto;border:1px solid #f7f2e65c;background:#142b2aee;box-shadow:3px 3px 0 #0005;padding:10px 13px;display:flex;gap:9px;align-items:center;white-space:nowrap;color:var(--paper);font-size:14px;text-decoration:none;transition:background .15s,translate .15s}.landmark:after{content:'';position:absolute;top:100%;left:calc(50% - 4px);border-top:7px solid var(--pine);border-left:5px solid transparent;border-right:5px solid transparent}.landmark small{color:var(--gold);font-size:11px}.landmark:hover,.landmark.near{background:var(--paper);color:var(--pine);translate:0 -3px}.landmark:hover small,.landmark.near small{color:#806136}.sprite{position:absolute;transform:translate(-50%,-100%);width:36px;height:80px;pointer-events:none;z-index:3;will-change:left,top}.sprite img{position:relative;z-index:2;width:100%;height:100%;object-fit:contain;image-rendering:pixelated;filter:drop-shadow(1px 1px 0 #152b2a55)}.sprite.riding{width:122px;height:81px}.player-shadow{position:absolute;bottom:-3px;left:12%;width:76%;height:9px;background:#12272166;border-radius:50%;filter:blur(2px);z-index:1}.sprite.walking img{animation:walk-bob .25s steps(2) infinite}.sprite.riding.walking img{animation:ride-bob .18s steps(2) infinite}@keyframes walk-bob{50%{translate:0 -3px}}@keyframes ride-bob{50%{translate:0 -1px}}.world-secret{position:absolute;width:24px;height:24px;border:0;background:transparent;color:transparent;z-index:4}.world-secret:hover,.world-secret:focus-visible{color:var(--gold);background:#142b2a99}.scene-title{position:absolute;top:28px;left:34px;color:#fff6da;pointer-events:none;text-shadow:2px 3px 0 #152b2aa8}.scene-title>span:first-child{font-size:10px;letter-spacing:2px}.scene-title h1{font-family:var(--pixel);font-weight:400;font-size:clamp(27px,3.4vw,49px);margin:5px 0;letter-spacing:-3px}.scene-rule{display:block;width:42px;border-top:3px solid var(--gold);margin-top:12px}.arrival{position:absolute;left:32px;bottom:28px;width:352px;padding:28px;background:var(--paper);border:1px solid #fff8;box-shadow:5px 5px 0 #142b2a55;z-index:5;touch-action:auto}.eyebrow{font-size:11px;letter-spacing:1.5px;font-weight:500}.arrival .eyebrow{color:#7c765b}.arrival h2{font-size:25px;font-weight:500;letter-spacing:-1.5px;margin:13px 0}.arrival p{font-family:system-ui,sans-serif;font-size:16px;line-height:1.6;margin:0 0 22px;color:#4f5c50}.arrival p a{font-weight:600}.arrival-close{position:absolute;right:10px;top:8px;background:none;border:0;font-size:23px;color:#777e6d;width:32px;height:32px}.arrival-actions{display:flex;align-items:center;gap:24px}.arrival-actions button{background:var(--pine);color:var(--paper);border:0;padding:13px 17px;font-size:14px}.arrival-actions a{font-size:13px}.arrival-actions button span{margin-left:20px}.world-footer{height:83px;flex-shrink:0;display:flex;align-items:center;justify-content:space-between;padding:0 30px;gap:20px;background:var(--pine);color:#c4cdbd;z-index:20}.location{display:flex;align-items:center;gap:13px;min-width:160px}.location-led{width:7px;height:7px;background:#b3c28b;box-shadow:0 0 9px #d5e2a35c}.location>div{display:grid;gap:4px}.location .eyebrow{font-size:9px;color:#90a496}#location-name{font-size:13px;color:#eee8d4}.keyboard-hint{display:flex;gap:4px;align-items:center;font-size:10px}.keyboard-hint>span{margin-left:7px;max-width:170px;line-height:1.6}kbd{font-family:var(--mono);font-size:10px;border:1px solid currentColor;opacity:.6;padding:3px 5px}.world-tools{display:flex;gap:18px;align-items:center}.world-tools button{background:none;color:#d4dbc8;border:0;padding:9px 0;font-size:12px;white-space:nowrap}.world-tools kbd{margin-left:5px}.reading-link{font-size:12px;color:var(--gold);text-decoration:none;white-space:nowrap}#interact{position:absolute;left:50%;bottom:28px;transform:translateX(-50%);border:1px solid #ffffff66;padding:14px 20px;box-shadow:3px 3px 0 #0004;background:var(--paper);font-size:13px;z-index:6;white-space:nowrap}#interact kbd{margin-left:12px}.journey-note{position:absolute;top:22px;left:50%;transform:translateX(-50%);background:var(--pine);color:var(--paper);padding:12px 16px;font-size:12px;display:flex;gap:22px;align-items:center;box-shadow:3px 3px 0 #0004;z-index:8;white-space:nowrap}.journey-note button{background:none;border:0;color:var(--gold);text-decoration:underline}#touch-controls{display:none;position:absolute;right:18px;bottom:18px;z-index:7;text-align:center}#touch-controls button{width:43px;height:43px;margin:2px;border:1px solid #f7f2e685;background:#142b2ad9;color:var(--paper);touch-action:none;user-select:none}#touch-controls button:active{background:var(--gold);color:var(--pine)}#loading-note{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);background:var(--paper);padding:18px 24px;font-size:13px}dialog{border:1px solid #d8d0b4;color:var(--ink);background:var(--paper);box-shadow:10px 12px 0 #0d252955;padding:0;width:min(900px,calc(100vw - 48px));max-height:calc(100dvh - 70px);overflow:hidden}dialog::backdrop{background:#092322bb;backdrop-filter:blur(4px)}.reader-bar{height:62px;padding:0 25px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-shrink:0}.reader-bar>div{display:flex;align-items:center;gap:22px}.reader-bar a{font-size:12px;color:#637060}.reader-bar button,.terminal-bar button{width:34px;height:36px;font-size:27px;border:0;background:none}.reader-scroll{padding:32px 48px 60px;max-height:calc(100dvh - 135px);overflow:auto;overscroll-behavior:contain}.reader-scroll>h2{font-size:clamp(26px,3vw,37px);font-weight:500;letter-spacing:-1.6px;margin:6px 0 30px}.prose{font-family:system-ui,sans-serif;font-size:17px;line-height:1.78}.prose p{margin:0 0 1.3em}.prose a{color:#33716c;text-decoration-thickness:1px}.prose a:hover{color:#8b6129}.prose h2,.prose h3,.prose h4{font-family:var(--mono);line-height:1.4;letter-spacing:-.7px;font-weight:500;clear:both}.prose h2{font-size:24px;margin:2em 0 1em}.prose h3{font-size:20px;margin:1.8em 0 .7em}.prose h4{font-size:17px}.prose img{max-width:100%;height:auto}.prose .papers{margin:30px 0;padding-bottom:28px;border-bottom:1px solid var(--line);display:flow-root}.prose .papers img,.prose .float-start{float:left;max-width:150px;max-height:180px;object-fit:contain;margin:5px 22px 14px 0}.prose .fw-bold{font-weight:650}.prose .text-muted{color:var(--muted)}.prose .small{font-size:.9em}.prose .row{display:flow-root}.prose li{margin:.5em 0}.prose table{display:block;max-width:100%;overflow:auto;border-collapse:collapse}.prose td,.prose th{padding:8px 14px;border-bottom:1px solid var(--line)}.prose pre{overflow:auto;padding:20px;background:#e9e6d9;font-size:13px}.prose .btn{display:inline-block;margin:4px 6px 4px 0;font-family:var(--mono);font-size:12px;padding:4px 0}.prose details{clear:both;margin:16px 0;background:#eeeade;padding:0 18px;border-left:2px solid #bfbb9d}.prose details>summary{cursor:pointer;padding:12px 0;font-family:var(--mono);font-size:13px}.prose details>div{padding-bottom:10px}.prose blockquote{border-left:3px solid #b7b895;margin:24px 0;padding-left:24px}.prose .container,.prose .container-fluid{max-width:100%;padding:0}.prose .mb-5{margin-bottom:30px}.prose hr{border:0;border-top:1px solid var(--line);margin:30px 0}.workshop-link{display:block;width:100%;margin:30px 0 0;padding:18px 22px;border:1px solid #a1af97;background:#e7eadb;text-align:left;font-family:var(--mono);font-size:14px}.workshop-link span{float:right}.map-body{padding:26px 30px 30px;overflow:auto;max-height:calc(100dvh - 135px)}.map-body h2{font-size:25px;font-weight:500;letter-spacing:-1.3px;margin:0 0 22px}.map-overview{position:relative;margin-bottom:18px}.map-overview img{width:100%;display:block;max-height:300px;object-fit:contain;background:var(--pine);image-rendering:pixelated}#map-position{position:absolute;width:8px;height:8px;background:#fff6d3;box-shadow:0 0 0 3px #142b2a,0 0 0 5px #fff6d3;transform:translate(-50%,-50%)}#map-places{display:grid;grid-template-columns:repeat(2,1fr);gap:0 24px;margin-bottom:22px}.map-place{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding:14px 0;gap:12px}.map-place>div{display:grid;gap:3px}.map-place a{font-size:14px;text-decoration:none}.map-place small{font-size:10px;color:var(--muted)}.map-place button{font-size:11px;background:none;border:1px solid #bfc8b1;padding:7px 9px;white-space:nowrap}.text-button{border:0;background:none;padding:0;font-size:12px;text-decoration:underline}.discovery-body{padding:30px;line-height:1.75}#discovery{max-width:520px}.discovery-body h2{font-size:25px;font-weight:500;line-height:1.3}#discovery-copy{font-family:system-ui,sans-serif}.discovery-body code{font-family:var(--mono);font-size:13px;overflow-wrap:anywhere}#terminal{background:#10251e;color:#bdcf9e;width:min(720px,calc(100vw - 40px));border-color:#627357;font-size:13px}.terminal-bar{display:flex;justify-content:space-between;align-items:center;padding:12px 22px;border-bottom:1px solid #42553b;font-size:12px}.terminal-bar button{color:#c8d5b5}.terminal-screen{padding:22px;overflow:auto;max-height:65dvh}#terminal-output{font:inherit;white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.7;margin:0 0 22px}#terminal-form{display:flex;flex-wrap:wrap;gap:9px;align-items:center}#terminal-input{min-width:80px;flex:1;width:100%;background:none;border:0;color:#f7e8b5;outline-offset:0;padding:6px 2px;font-size:16px}#terminal-form button{background:none;color:#f0c878;border:1px solid #627357;padding:3px 9px}#toast{position:fixed;bottom:100px;left:50%;transform:translateX(-50%);background:var(--pine);color:var(--paper);padding:15px 20px;max-width:90vw;font-size:13px;z-index:100;box-shadow:3px 3px 0 #0004;line-height:1.5}.noscript-note{position:absolute;inset:30% 15%;background:var(--paper);padding:30px;line-height:2;z-index:50}.reading-page{min-height:100vh}.reading-page .site-header{position:relative}.reading-page .site-header nav{gap:18px}.back-to-world{font-size:12px;white-space:nowrap;color:var(--gold)}.reading-landscape{height:180px;background:url('/images/switchback/valley.png') center 23%/cover;image-rendering:pixelated}.reading-main{max-width:880px;margin:0 auto;padding:48px 36px 90px}.reading-heading .eyebrow{color:#777961}.reading-heading h1{font-size:clamp(30px,4vw,44px);font-weight:500;letter-spacing:-2px;margin:18px 0 36px}.reading-footer{background:var(--pine);color:#e2e3cd;display:flex;justify-content:space-between;padding:30px max(30px,calc((100vw - 808px)/2));gap:30px;font-size:12px}.reading-footer a{white-space:nowrap}
@media(min-width:1700px){.site-header{padding-inline:48px}.world-footer{padding-inline:48px}.arrival{left:48px;bottom:38px}.scene-title{left:48px;top:38px}}
@media(max-width:1200px){.site-header{padding:0 22px;gap:20px}.site-header nav{gap:14px}.header-tools #sound-toggle{font-size:0}.header-tools #sound-toggle:after{content:'♪';font-size:17px}.keyboard-hint{display:none}.reading-page .site-header nav{display:none}.reading-page .back-to-world{margin-left:auto}}
@media(max-width:960px){.site-header nav{display:none}.header-tools{margin-left:auto}#menu-toggle{display:block}.world-footer{padding:0 20px;height:74px}.world-tools{gap:15px}.arrival{width:320px;padding:24px}.arrival h2{font-size:23px}.scene-title{top:20px;left:24px}.scene-title h1{font-size:33px}.scene-title>span:first-child{font-size:9px}.reading-link{display:none}#touch-controls{display:block}#interact{bottom:25px}.arrival~#interact{left:50%}}
@media(max-width:600px){.site-header{height:64px;padding:0 16px}.wordmark{font-size:15px;letter-spacing:-1px}.header-tools{gap:5px}.header-tools button{font-size:10px;padding:8px}.header-tools #night-toggle{display:none}#mobile-menu{top:64px}.world-footer{height:70px;padding:0 16px;gap:8px}.location{min-width:90px;gap:9px}.location .eyebrow{font-size:8px}.location-led{width:5px;height:5px}#location-name{font-size:10px;max-width:125px}.world-tools{gap:14px}.world-tools button{font-size:10px}.world-tools kbd{display:none}.scene-title{left:20px;top:20px}.scene-title h1{font-size:31px;letter-spacing:-2px}.scene-title>span:first-child{font-size:8px;letter-spacing:1px}.scene-rule{margin-top:8px;width:26px}.arrival{left:16px;bottom:18px;width:calc(100% - 32px);max-width:335px;padding:24px}.arrival h2{font-size:23px}.arrival p{font-size:15px}.arrival .eyebrow{font-size:10px}.arrival-actions button{padding:12px 15px}.arrival-close{top:7px;right:9px}#touch-controls{right:12px;bottom:12px}body:has(#arrival:not([hidden])) #touch-controls{display:none}#interact{left:14px!important;bottom:24px;transform:none;padding:12px;max-width:calc(100vw - 172px);white-space:normal;text-align:left;font-size:11px}#interact kbd{display:none}.journey-note{top:114px;max-width:95%;font-size:10px;padding:10px;gap:12px}dialog{width:calc(100vw - 22px);max-height:calc(100dvh - 24px)}.reader-bar{height:58px;padding:0 17px}.reader-bar .eyebrow{font-size:9px;letter-spacing:.8px}.reader-bar>div{gap:10px}.reader-bar a{font-size:10px}.reader-scroll{padding:25px 22px 45px;max-height:calc(100dvh - 85px)}.reader-scroll>h2{font-size:27px}.prose{font-size:16px;line-height:1.75}.prose .papers img{max-width:95px;margin:4px 14px 12px 0}.prose details{padding-inline:12px}.prose h2{font-size:22px}.map-body{padding:22px;max-height:calc(100dvh - 85px)}.map-body h2{font-size:21px}#map-places{gap:0 18px}.map-place{align-items:start}.map-place a{font-size:12px}.map-place button{font-size:10px;padding:6px}.map-place small{font-size:9px}.map-place>div{max-width:100px}.discovery-body{padding:24px}.reading-landscape{height:130px}.reading-main{padding:32px 24px 65px}.reading-footer{padding:26px 24px;flex-direction:column;gap:18px}.back-to-world{font-size:10px;max-width:100px;white-space:normal;text-align:right}.terminal-screen{padding:16px}.terminal-bar{padding:10px 16px;font-size:10px}#toast{bottom:84px;width:max-content;font-size:12px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* The archive used floated Bootstrap columns; keep each paper as a complete row. */
.prose ul.papers{list-style:none;padding:0;border:0}.prose .papers>li{display:grid;grid-template-columns:120px minmax(0,1fr);gap:24px;padding:26px 0;border-bottom:1px solid var(--line);margin:0}.prose .papers .float-start{float:none;max-width:none;max-height:none;margin:0}.prose .papers img{float:none;width:100%;max-width:120px;max-height:180px;margin:0}.prose .papers details{clear:none}.prose .papers p{margin-bottom:12px}.reader-actions{display:flex;flex-wrap:wrap;gap:24px;margin-top:30px;font-family:var(--mono);font-size:13px}@media(max-width:600px){.prose .papers>li{grid-template-columns:76px minmax(0,1fr);gap:16px}.prose .papers img{max-width:76px}.prose .papers details{margin-left:-92px}.prose .papers details:first-of-type{margin-top:20px}}

/* Guided travel keeps both keyboard and touch to one deliberate action. */
.route-controls{position:absolute;left:50%;bottom:24px;transform:translateX(-50%);display:flex;align-items:center;gap:0;background:var(--pine);color:var(--paper);border:1px solid #f7f2e680;box-shadow:4px 4px 0 #142b2a55;z-index:7;touch-action:manipulation}
.route-controls button{display:flex;align-items:center;justify-content:space-between;gap:18px;min-width:145px;padding:16px 18px;border:0;background:none;color:var(--paper);font-size:13px;transition:background .2s}
.route-controls button:hover{background:#ffffff15}.route-controls button:disabled{opacity:.35;cursor:default}.route-controls button b{font-size:18px;font-weight:400;color:var(--gold)}.route-controls-label{font-size:8px;letter-spacing:1px;color:#99ac98;padding:0 14px;border-inline:1px solid #ffffff25}
#interact{bottom:99px}.world-tools button:disabled{opacity:.45;cursor:default}.journey-note{top:auto;bottom:100px}.arrival{bottom:112px}.scene-title{z-index:1}
@media(max-width:960px){.route-controls-label{display:none}.route-controls button{min-width:150px}#interact{bottom:98px}.arrival{bottom:112px}}
@media(max-width:600px){.route-controls{bottom:18px;width:calc(100% - 32px);max-width:360px;justify-content:space-between}.route-controls button{min-width:0;width:50%;padding:14px 16px;font-size:12px}.route-controls button+button{border-left:1px solid #ffffff25}.route-controls-label{display:none}#interact{left:50%!important;transform:translateX(-50%);bottom:90px;max-width:90%;text-align:center;padding:10px 16px;font-size:12px;white-space:nowrap}.journey-note{top:auto;bottom:91px;width:max-content;max-width:90%;white-space:normal}.arrival{bottom:91px}.scene-title h1{font-size:28px}#toast{bottom:152px}}