/* Edit these tokens to change the entire direction. No remote fonts or assets. */
:root{--blue:#163f59;--sky:#e8f0f2;--gold:#d4ae59;--paper:#fcfcf8;--green:#416450;--slate:#53636a;--line:#c6d2d5;--serif:Georgia,'Times New Roman',serif;--sans:Arial,Helvetica,sans-serif;--space:clamp(24px,6vw,96px)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--paper);color:var(--blue);font:17px/1.65 var(--sans)}a{color:inherit;text-underline-offset:5px}a:hover{text-decoration-thickness:2px}a:focus-visible,summary:focus-visible,button:focus-visible{outline:3px solid var(--blue);outline-offset:6px}img{display:block;max-width:100%;height:auto}h1,h2,h3,p,figure{margin:0}h1,h2,h3{font-family:var(--serif);font-weight:400;line-height:1.08}h2{font-size:clamp(38px,4.1vw,66px);letter-spacing:-1.9px}h3{font-size:31px;letter-spacing:-.7px}p+p{margin-top:20px}.skip{position:absolute;top:-100px;left:16px;padding:12px 20px;background:var(--paper);z-index:5}.skip:focus{top:12px}.proposal{padding:9px var(--space);background:var(--blue);color:white;display:flex;justify-content:space-between;gap:12px;font-size:12px;letter-spacing:.2px}.proposal span{color:#dce7ec}.site-header{display:flex;align-items:center;justify-content:space-between;padding:24px var(--space);gap:28px}.identity{width:214px;flex-shrink:0}nav{display:flex;gap:34px;font-size:14px}nav a{text-decoration:none}.hero{background:var(--sky);position:relative;text-align:center;overflow:hidden}.hero-type{padding:41px 20px 0;position:relative;z-index:1}.place{font-size:14px;letter-spacing:.6px}h1{font-size:clamp(92px,14.2vw,220px);letter-spacing:-.065em;margin:10px 0 0;line-height:1}h1 span{display:block;font:17px/1.6 var(--sans);letter-spacing:7px;margin-top:10px;text-indent:7px}.hero-caption{font:clamp(19px,2vw,28px)/1.4 var(--serif);margin-top:29px}.landscape{margin-top:-64px}.landscape img{width:100%}.landscape figcaption{font-size:11px;background:var(--gold);padding:8px 16px;color:var(--blue)}.explore{display:flex;align-items:center;justify-content:center;gap:23px;padding:20px;text-decoration:none;font-size:13px;background:var(--gold)}.explore span{font-size:21px}.section{padding:100px var(--space);max-width:1600px;margin:auto}.introduction{display:grid;grid-template-columns:1.1fr 1fr;gap:8vw}.introduction h2{font-size:clamp(34px,3.5vw,55px)}.reading{max-width:60ch}.lead{font-family:var(--serif);font-size:26px;line-height:1.4;letter-spacing:-.3px}.draft-note{font-size:13px;color:var(--slate);padding-left:17px;border-left:3px solid var(--gold)}.history{background:var(--sky)}.section-heading>p,.today-heading>div>p,.sources>div>p:first-child{font-size:14px;margin-bottom:18px}.history-layout{display:grid;grid-template-columns:1fr 1fr;gap:9vw;margin-top:48px;align-items:start}.archive-placeholder{transform:rotate(-2deg);padding:18px;background:var(--paper);box-shadow:0 10px 30px #163f5912;margin:5px 12px 0}.archive-frame{min-height:280px;background:#d9e1dd;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px;color:var(--green)}.archive-frame span{font:37px/1.1 var(--serif);text-align:center}.archive-frame svg{width:200px;margin-top:30px;fill:none;stroke:var(--green);stroke-width:1.5}.archive-placeholder figcaption{padding:18px 4px 4px;font:17px/1.5 var(--serif)}.archive-placeholder figcaption span{font:12px/1.5 var(--sans);display:block;color:var(--slate);margin-top:4px}details{border-top:1px solid var(--line);padding:19px 0;margin-top:24px;font-size:15px}summary{cursor:pointer;font-weight:600}details p,details ul{margin-top:15px}details li+li{margin-top:12px}.today-heading{display:grid;grid-template-columns:1fr 1fr;gap:9vw;align-items:end}.topics{display:grid;grid-template-columns:repeat(3,1fr);gap:44px;margin-top:65px}.topics article{border-top:3px solid var(--gold);padding-top:24px}.topic-symbol{font-size:37px;line-height:1;display:block;margin-bottom:25px}.topics p{font-size:16px;margin-top:18px}.topics .status{font-size:12px;color:var(--slate);margin-top:26px}.sources{display:grid;grid-template-columns:1fr 1fr;gap:9vw;background:var(--sky)}.review-strip{text-align:center;background:var(--gold);padding:65px 24px}.review-strip h2{font-size:42px}.review-strip p{margin:18px auto 26px;max-width:50ch}.button{display:inline-block;padding:12px 24px;border:1px solid var(--blue);text-decoration:none;font-size:14px;background:var(--blue);color:white}.button:hover{background:var(--paper);color:var(--blue)}footer{display:flex;align-items:start;justify-content:space-between;gap:30px;padding:50px var(--space);font-size:12px}footer>a:first-child{font:24px var(--serif);text-decoration:none}footer p{line-height:1.6}.concept-intro{max-width:900px;padding-bottom:45px}.concept-intro h1{font-size:clamp(48px,7vw,90px);letter-spacing:-3px;margin:0 0 25px}.concept-list{padding-top:0}.concept{display:grid;grid-template-columns:1.2fr 1fr;gap:65px;padding:50px 0;border-top:1px solid var(--line);align-items:center}.logo-stage{background:var(--sky);padding:50px 24px}.concept h2{font-size:38px;letter-spacing:-1px}.concept p{margin:20px 0}.concept-links{display:flex;gap:20px;align-items:center;flex-wrap:wrap;font-size:14px}.review-intro{font-size:13px;color:var(--slate)}
@media(min-width:1500px){.landscape{margin-top:-100px}}@media(max-width:800px){.site-header{padding-top:20px;padding-bottom:20px;flex-direction:column;gap:18px}.identity{width:180px}nav{gap:26px}.hero-type{padding-top:35px}.landscape{margin-top:0}.landscape img{min-height:230px;object-fit:cover;object-position:65%}.section{padding-top:65px;padding-bottom:65px}.introduction,.history-layout,.today-heading,.sources,.concept{grid-template-columns:1fr;gap:32px}.topics{gap:25px;margin-top:40px}.topics h3{font-size:26px}.topics p{font-size:14px}.archive-placeholder{max-width:500px;width:calc(100% - 20px);margin:10px auto}.today-heading .reading{max-width:50ch}footer{flex-wrap:wrap}.concept{gap:25px}.logo-stage{padding:36px 18px}}
@media(max-width:540px){.proposal{font-size:11px;flex-direction:column;gap:0}.proposal span{font-size:10px}nav{font-size:13px;gap:24px}.hero-caption{margin-top:22px}h1{font-size:clamp(80px,23vw,125px)}h1 span{font-size:13px}.place{font-size:12px}.landscape img{min-height:210px}.landscape figcaption{font-size:10px}.topics{grid-template-columns:1fr;gap:30px}.topics article{display:grid;grid-template-columns:45px 1fr;column-gap:16px}.topic-symbol{grid-row:1/4;margin:0;font-size:32px}.topics h3{font-size:30px}.topics p{grid-column:2;margin-top:10px;font-size:15px}.topics .status{margin-top:14px}.lead{font-size:24px}body{font-size:16px}.archive-frame{min-height:230px;padding:28px}.archive-frame span{font-size:31px}.review-strip h2{font-size:35px}.review-strip p{font-size:15px}footer{flex-direction:column;gap:22px}h2{letter-spacing:-1px}.concept-links{align-items:start;flex-direction:column}.concept-intro h1{letter-spacing:-2px}.concept-list{padding-top:0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
/* Source-backed editorial content */
.citation{display:block;font:12px/1.65 var(--sans);color:var(--slate);margin-top:12px}.citation a{overflow-wrap:anywhere}.subheading{margin-top:34px}.timeline{list-style:none;margin:0;padding:0 0 0 28px;border-left:2px solid var(--gold)}.timeline li{position:relative;margin:0 0 30px}.timeline li:before{content:"";position:absolute;left:-35px;top:8px;width:12px;height:12px;border-radius:50%;background:var(--blue);border:2px solid var(--sky)}.timeline time{font-size:13px;display:block;margin-bottom:9px}.timeline h3{font-size:28px}.timeline p{font-size:15px;margin-top:10px}.story-grid{display:grid;grid-template-columns:1fr 1fr;gap:9vw;margin-top:50px}.story-label{font-size:13px;margin-bottom:18px}.story-grid h3{font-size:35px}.story-grid article>p:not(.story-label){margin-top:20px}.story-stack{display:grid;gap:45px}.story-stack article+article{border-top:1px solid var(--line);padding-top:40px}.museum-story .archive-placeholder{margin-top:40px;max-width:460px}.museum-story .archive-frame{min-height:210px}.sources-date{font-size:13px;margin-top:28px}.source-list{padding-left:22px}.source-list li{padding:12px 0}.source-list li p{font-size:12px;margin-top:5px;color:var(--slate)}
@media(max-width:800px){nav{gap:22px;font-size:13px;flex-wrap:wrap;justify-content:center}.story-grid{grid-template-columns:1fr;gap:50px}.timeline{margin-top:12px}.museum-story .archive-placeholder{margin-left:auto;margin-right:auto}}
@media(max-width:540px){nav{gap:10px 22px;max-width:320px;line-height:1.9}.site-header{gap:12px}.story-grid h3{font-size:30px}.timeline h3{font-size:25px}}

/* Genuine user-supplied photography. Originals remain in Images/. */
.landscape.photo-hero{margin-top:40px}.photo-hero picture{display:block}.landscape.photo-hero img{width:100%;height:clamp(320px,43vw,640px);object-fit:cover;object-position:50% 57%}.photo-hero figcaption{font-size:12px;background:var(--sky);padding:12px 24px}.photo-hero+.explore{background:var(--sky);padding-top:5px}.photo-section{background:#f1f3ed}.photo-grid{display:grid;grid-template-columns:1fr 1fr;gap:42px 32px;margin-top:48px}.photo-grid figure{min-width:0}.photo-grid a{display:block}.photo-grid img{width:100%;aspect-ratio:3/2;object-fit:cover}.photo-grid figure:first-child img{object-position:50% 55%}.photo-grid figure:nth-child(4) img{object-fit:contain;background:var(--blue)}.photo-grid figcaption,.story-photo figcaption{font:13px/1.6 var(--sans);color:var(--slate);margin-top:12px;max-width:65ch}.collection-note{font:13px/1.6 var(--sans);color:var(--slate);margin-top:35px;max-width:80ch}.story-photo{margin:25px 0}.story-photo img{width:100%;height:auto}.photo-grid a:focus-visible{outline-offset:5px}.photo-grid a:hover{opacity:.94}
@media(max-width:800px){.landscape.photo-hero{margin-top:30px}.landscape.photo-hero img{height:auto;min-height:0;aspect-ratio:3/2;object-fit:cover}.photo-grid{gap:32px 24px}.photo-grid figcaption{font-size:12px}}
@media(max-width:540px){.photo-grid{grid-template-columns:1fr;gap:34px}.photo-hero figcaption{font-size:11px}.photo-grid img{aspect-ratio:3/2}.hero-caption{padding:0 16px}.story-photo figcaption{font-size:12px}}

.location-section{background:var(--paper)}.locator{max-width:1000px;margin:40px auto 0}.locator img{width:100%}.locator figcaption{font-size:12px;color:var(--slate);margin-top:12px}.location-section>details{max-width:900px;margin:35px auto 0}

.roadtrip-section{background:var(--sky)}.roadtrip-grid{display:grid;grid-template-columns:1fr 1fr;gap:8vw;margin-top:48px}.roadtrip-grid article{border-top:3px solid var(--gold);padding-top:25px}.event-status{font-size:13px;margin-bottom:16px}.roadtrip-grid h3{font-size:36px;max-width:20ch}.event-date{font:22px/1.4 var(--serif);margin:18px 0 24px}.roadtrip-grid p:not(.event-status):not(.event-date){max-width:60ch}.roadtrip-grid>article>p:last-child{font-size:14px}.locator{max-width:1100px}@media(max-width:800px){.roadtrip-grid{grid-template-columns:1fr;gap:42px}.roadtrip-grid h3{font-size:31px}}@media(max-width:1100px){nav{gap:18px;font-size:12px}.site-header{gap:22px}.identity{width:185px}}

.treasure-feature{grid-template-columns:1fr;max-width:900px}.treasure-feature article{max-width:800px}.treasure-feature h3{font-size:clamp(34px,4vw,52px);max-width:none}.treasure-feature .event-date{font-size:28px}.past-roadtrip{max-width:900px;margin-top:38px}

/* River Horse is a provisional website preview, not final brand approval. */
.site-header .identity{width:245px}.footer-identity{display:block;width:220px}.footer-identity img{width:100%}@media(max-width:1100px){.site-header .identity{width:220px}}@media(max-width:800px){.site-header .identity{width:230px}.site-header{padding-top:14px;padding-bottom:18px}.review-strip .button{margin:4px}}

/* Community contributions: local prototype, deliberately outside motion targets. */
.school-memory{margin-top:28px;max-width:390px}.school-memory a{display:block;background:#fff;border:1px solid var(--line);padding:18px}.school-memory img{width:100%;height:auto}.school-memory figcaption{font:15px/1.5 var(--serif);margin-top:12px}.school-memory figcaption span{display:block;font:12px/1.65 var(--sans);color:var(--slate);margin-top:8px}
.contribute{background:#f1f3ed}.contribute-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:7vw;margin-top:52px;align-items:start}.contribute-note{max-width:45ch}.contribute-note>p{margin-top:22px}.contribute-note>p:first-child{margin-top:0}.contribute-note h3{font-size:36px}.form-hint{font:13px/1.6 var(--sans);color:var(--slate);margin-top:8px!important}.contribute form{min-width:0;padding:32px;background:var(--paper);border-top:4px solid var(--gold)}.contribute fieldset{border:0;padding:0;margin:0;min-width:0}.contribute legend{font:25px/1.4 var(--serif);padding:0;margin-bottom:28px}.contribute legend span{display:block;font:12px/1.6 var(--sans);color:var(--slate);margin-top:6px}.form-field{min-width:0;margin-bottom:25px}.form-field>label{display:block;font-size:14px;font-weight:600;margin-bottom:8px}.form-field label span{font-size:12px;font-weight:400}.form-field input:not([type=checkbox]),.form-field textarea{width:100%;min-width:0;border:1px solid #8b9ba4;border-radius:0;background:#fff;color:var(--blue);padding:12px;font:16px/1.5 var(--sans)}.form-field input::placeholder,.form-field textarea::placeholder{color:#65727a;opacity:1}.form-field textarea{resize:vertical;min-height:160px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:22px}.form-field input[type=file]{font-size:13px;padding:12px 8px;overflow:hidden}.form-field input[type=file]::file-selector-button{font:inherit;padding:8px;background:var(--sky);color:var(--blue);border:1px solid var(--blue);margin-right:10px;cursor:pointer}.permission-field{display:grid;grid-template-columns:20px 1fr;gap:12px;align-items:start;margin-bottom:12px}.permission-field input{width:20px;height:20px;margin:3px 0;accent-color:var(--blue)}.permission-field>label{font-size:13px;font-weight:400;line-height:1.7;margin:0}.file-feedback{font:12px/1.6 var(--sans);color:var(--slate);padding-left:18px;margin:12px 0 0;overflow-wrap:anywhere}.file-feedback li+li{margin-top:7px}.form-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:27px}.form-actions button{font-family:var(--sans);cursor:pointer;line-height:1.5}.form-actions .secondary{background:transparent;color:var(--blue)}.form-errors{border:2px solid #8c3229;background:#fff4ee;padding:18px;margin-bottom:25px;font-size:14px;overflow-wrap:anywhere}.form-errors ul{padding-left:20px;margin-bottom:0}.form-errors li+li{margin-top:8px}.form-status:empty{display:none}.form-status{background:var(--sky);border-left:3px solid var(--green);padding:18px;margin-top:24px;font-size:14px}.contribute [aria-invalid=true]{outline:2px solid #8c3229;outline-offset:2px}.contribute input:focus-visible,.contribute textarea:focus-visible,.form-status:focus,.form-errors:focus{outline:3px solid var(--blue);outline-offset:4px}
@media(max-width:1000px){.contribute-layout{grid-template-columns:1fr;gap:36px}.contribute-note{max-width:65ch}.contribute-note h3 br{display:none}}
@media(max-width:540px){.contribute form{padding:22px 16px}.form-row{grid-template-columns:1fr;gap:0}.contribute-layout{margin-top:34px}.contribute-note h3{font-size:31px}.school-memory{max-width:330px}.form-actions{flex-direction:column}.form-actions button{width:100%;text-align:center}}

/* Native chronological timeline: document flow on mobile, scrollable panel on desktop. */
.timeline-panel{min-width:0}.timeline-panel>h3{font-size:30px}.timeline-help{font:12px/1.65 var(--sans);color:var(--slate);margin:12px 0 22px}.timeline-scroll{max-height:620px;overflow-y:auto;padding:25px 24px 0 18px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);scrollbar-color:var(--blue) var(--sky);scrollbar-width:auto;background:linear-gradient(var(--sky),var(--sky))}.timeline-scroll:focus-visible{outline:3px solid var(--blue);outline-offset:5px}.timeline-panel>.draft-note{margin-top:22px}.timeline-scroll .timeline{margin-top:0}.timeline-scroll .timeline li:last-child{padding-bottom:12px}
@media(max-width:800px){.timeline-scroll{max-height:none;overflow:visible;padding-right:0}.timeline-panel>h3{font-size:28px}}

.timeline-date{font-size:13px;display:block;margin-bottom:9px}.timeline .timeline-context{font-size:12px;color:var(--slate);padding-left:12px;border-left:2px solid var(--gold);margin-top:12px}

/* Public-domain route marker supports the Treasure Hunt story. */
.treasure-feature{max-width:none}.treasure-feature article{max-width:none;display:grid;grid-template-columns:minmax(0,1fr) 200px;gap:60px;align-items:start}.treasure-copy{min-width:0;grid-column:1;grid-row:1}.treasure-copy>p:last-child{font-size:14px}.route36-graphic{grid-column:2;grid-row:1;width:100%;padding-top:30px;text-align:center;align-self:start}.route36-graphic img{width:100%;height:auto}.route36-graphic figcaption{font:12px/1.6 var(--sans);color:var(--slate);letter-spacing:1.2px;margin-top:18px}.treasure-copy h3{max-width:22ch}
@media(max-width:1000px){.treasure-feature article{grid-template-columns:minmax(0,1fr) 150px;gap:35px}}
@media(max-width:800px){.treasure-feature article{grid-template-columns:1fr;gap:25px}.route36-graphic{grid-column:1;grid-row:1;width:112px;padding-top:0;text-align:left}.route36-graphic figcaption{margin-top:10px;letter-spacing:.5px;white-space:nowrap}.treasure-copy{grid-column:1;grid-row:2}.treasure-copy h3{max-width:none}}

/* Highway 36: a photographic road-trip feature, with the standard shield unchanged. */
.treasure-feature .treasure-journey{display:grid;grid-template-columns:1.05fr 1fr;gap:0;border:0;background:var(--blue);color:var(--paper);padding:0;position:relative;box-shadow:0 18px 38px #163f5914}.treasure-journey .treasure-copy{padding:48px 42px 46px;position:relative;z-index:1}.treasure-journey .event-status{color:var(--gold);font-size:12px;letter-spacing:.6px;line-height:1.6}.treasure-journey h3{font-size:clamp(38px,3.9vw,58px);line-height:1.06;letter-spacing:-1.5px}.treasure-journey .event-date{color:var(--gold);font-size:25px;margin:23px 0 26px}.treasure-journey .treasure-copy>p:not(.event-status):not(.event-date){font-size:15px;line-height:1.75}.treasure-journey .citation{color:#d0dce2;font-size:11px;margin-top:22px}.treasure-journey .draft-note{color:#dce7ec;font-size:12px!important;margin-top:24px;line-height:1.7!important;padding-left:15px}.journey-link{display:inline-flex;align-items:center;gap:20px;background:var(--gold);color:var(--blue);padding:14px 17px;text-decoration:none;font-size:13px;margin-top:10px}.journey-link:hover{background:var(--paper)}.journey-link:focus-visible{outline-color:var(--gold)}.roadtrip-scene{grid-column:2;grid-row:1;position:relative;min-height:100%;overflow:hidden;border-top-left-radius:180px;background:var(--green)}.roadtrip-scene picture{position:absolute;inset:0;display:block}.roadtrip-scene picture img{width:100%;height:100%;object-fit:cover;object-position:64% 50%}.roadtrip-scene:after{content:"";position:absolute;inset:35% 0 0;background:linear-gradient(transparent,#163f59c9);pointer-events:none}.route36-stamp{position:absolute;z-index:2;left:24px;bottom:100px;width:145px;padding:10px;background:var(--paper);transform:rotate(-7deg);box-shadow:0 8px 22px #0d263b50}.route36-stamp img{width:100%;height:auto}.journey-caption{position:absolute;z-index:2;right:25px;bottom:100px;font:38px/1.05 var(--serif);text-align:right;color:white;text-shadow:0 2px 9px #163f5940}.roadtrip-scene figcaption{position:absolute;z-index:2;bottom:27px;left:25px;right:25px;font:11px/1.6 var(--sans);color:white;letter-spacing:.4px;border-top:1px solid #fcfcf86b;padding-top:15px}.site-header nav{flex-wrap:wrap;justify-content:flex-end}.nature-section{background:var(--paper)}.nature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:38px 25px;margin-top:48px}.nature-grid figure{min-width:0}.nature-grid a{display:block}.nature-grid img{width:100%;height:auto;aspect-ratio:3/2;object-fit:contain;background:var(--sky)}.nature-grid figcaption,.summer-film figcaption{font:13px/1.65 var(--sans);color:var(--slate);margin-top:12px}.summer-story{display:grid;grid-template-columns:.65fr 1.35fr;gap:5vw;margin-top:85px;padding-top:50px;border-top:2px solid var(--gold);align-items:center}.summer-copy h3{font-size:clamp(36px,4vw,55px);margin-bottom:24px}.summer-copy>p{max-width:40ch}.summer-film{min-width:0}.field-film{position:relative;background:var(--blue)}.field-film>img,.field-film>video{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:contain}.field-film [hidden]{display:none}.video-play{position:absolute;left:20px;bottom:20px;display:inline-flex;gap:13px;align-items:center;border:0;padding:14px 19px;background:var(--gold);color:var(--blue);font:14px/1.5 var(--sans);cursor:pointer;box-shadow:0 3px 18px #163f5938}.video-play:hover{background:var(--paper)}.video-play:focus-visible{outline-color:var(--paper)}.video-status:empty{display:none}
@media(max-width:1100px){.treasure-journey .treasure-copy{padding:36px 30px}.route36-stamp{width:115px;left:20px;bottom:112px}.journey-caption{font-size:30px;right:20px}.roadtrip-scene{border-top-left-radius:125px}}
@media(max-width:1000px){.nature-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.summer-story{grid-template-columns:1fr;gap:30px}.summer-copy{max-width:65ch}.summer-copy h3 br{display:none}.summer-copy>p{max-width:none}}
@media(max-width:800px){.site-header nav{justify-content:center}.treasure-feature .treasure-journey{grid-template-columns:1fr}.roadtrip-scene{grid-column:1;grid-row:1;min-height:350px;border-top-left-radius:120px;margin-left:18px}.treasure-journey .treasure-copy{grid-column:1;grid-row:2;padding:32px 25px 36px}.route36-stamp{width:105px;bottom:90px;left:25px}.journey-caption{bottom:95px;right:25px;font-size:35px}.treasure-journey h3{font-size:clamp(37px,8vw,50px)}.treasure-journey .event-date{font-size:25px}.summer-story{margin-top:55px;padding-top:35px}}
@media(max-width:540px){.nature-grid{grid-template-columns:1fr;gap:28px}.nature-grid figcaption{font-size:12px}.video-play{left:12px;bottom:12px;padding:11px 13px;font-size:12px;gap:9px}.roadtrip-scene{min-height:320px}.journey-caption{font-size:30px}.treasure-journey .treasure-copy{padding:30px 21px 34px}.route36-stamp{width:96px;left:20px}.roadtrip-scene figcaption{left:20px;right:20px;font-size:10px}.journey-link{font-size:12px;gap:12px}.nature-section .today-heading br{display:none}}

/* The blue masthead is visual only; accessible controls live beside navigation. */
.proposal{display:block;height:48px;min-height:48px;padding:0;background:var(--blue)}.site-header{position:relative}.site-header nav{flex:1}.display-settings{position:relative;flex-shrink:0;border:0;padding:0;margin:0;font-size:13px;z-index:4}.display-settings summary{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border:1px solid var(--line);list-style:none;cursor:pointer;background:var(--paper);color:var(--blue)}.display-settings summary::-webkit-details-marker{display:none}.display-settings summary:hover{background:var(--sky)}.display-settings[open] summary{border-color:var(--blue)}.display-controls{position:absolute;right:0;top:50px;min-width:190px;padding:12px;background:var(--paper);border:1px solid var(--line);box-shadow:0 10px 25px #163f5926;display:grid;gap:8px}.display-controls button,.display-controls a{font:13px/1.5 var(--sans);text-align:left;padding:10px 12px;border:1px solid var(--line);background:var(--paper);color:var(--blue);text-decoration:none;cursor:pointer;white-space:nowrap}.display-controls button:hover,.display-controls a:hover{background:var(--sky)}.display-controls button[hidden]{display:none}.display-controls button:disabled{cursor:default}.display-controls button:focus-visible,.display-controls a:focus-visible{outline:3px solid var(--blue);outline-offset:3px}
@media(max-width:800px){.proposal{height:28px;min-height:28px}.site-header nav{flex:auto}.display-settings{align-self:center}.display-controls{right:50%;transform:translateX(50%)}}

/* Responsive navigation: links remain available without JavaScript. */
.nav-toggle{display:none}.site-header .main-nav{flex-wrap:nowrap;gap:clamp(15px,2.2vw,34px)}.main-nav>a{white-space:nowrap}
@media(max-width:1180px){
 .site-header{flex-direction:row;flex-wrap:wrap;align-items:center;gap:16px;padding-top:18px;padding-bottom:18px}
 .site-header .identity{width:clamp(146px,38vw,190px);margin-right:auto}
 .nav-enhanced .nav-toggle{display:inline-flex;align-items:center;justify-content:center;gap:11px;min-height:46px;padding:10px 14px;border:1px solid var(--blue);background:var(--paper);color:var(--blue);font:14px/1.4 var(--sans);cursor:pointer}
 .nav-toggle:hover,.nav-toggle[aria-expanded="true"]{background:var(--sky)}
 .site-header .main-nav{display:grid;flex:0 0 100%;min-width:0;grid-template-columns:1fr;justify-content:stretch;gap:0;border-top:1px solid var(--line);padding:8px 0 0}
 .site-header .main-nav[hidden]{display:none}
 .main-nav>a{display:flex;align-items:center;min-height:50px;padding:10px 12px;white-space:normal;font-size:15px;line-height:1.5;border-bottom:1px solid var(--line)}
 .main-nav>a:hover{background:var(--sky)}.main-nav>a:focus-visible{outline-offset:-3px}
}

/* Stable document space prevents shrinking chrome from moving page content. */
:root{--header-logo-expanded:214px;--header-logo-small:148px;--header-pad-expanded:24px;--header-pad-small:8px;--header-strip-expanded:48px;--header-strip-small:8px;--header-logo:var(--header-logo-expanded);--header-pad:var(--header-pad-expanded);--header-strip:var(--header-strip-expanded);--header-reserved:calc(var(--header-logo-expanded)*270/548 + var(--header-pad-expanded)*2 + var(--header-strip-expanded));--header-closed-height:var(--header-reserved)}
html{scroll-padding-top:calc(var(--header-closed-height) + 16px)}
.masthead-slot{display:contents}.site-masthead{position:sticky;top:0;z-index:30;background:var(--paper);box-shadow:0 1px 0 #163f5917}
.header-enhanced .masthead-slot{display:block;height:var(--header-reserved)}
.header-enhanced .site-masthead{position:fixed;inset:0 0 auto}
.site-masthead .proposal{height:var(--header-strip);min-height:var(--header-strip);transition:height 200ms ease,min-height 200ms ease}
.site-masthead .site-header{padding-top:var(--header-pad);padding-bottom:var(--header-pad);transition:padding 200ms ease}
.site-masthead .identity{width:var(--header-logo);transition:width 200ms ease}
.site-masthead .main-nav>a{min-height:44px;display:flex;align-items:center}
.header-compact{--header-logo:var(--header-logo-small);--header-pad:var(--header-pad-small);--header-strip:var(--header-strip-small)}
.header-compact .site-masthead{box-shadow:0 3px 14px #163f591c}
.skip{z-index:40}
@media(max-width:1180px){
 :root{--header-logo-expanded:clamp(146px,38vw,190px);--header-logo-small:132px;--header-pad-expanded:18px}
 .site-masthead .main-nav{max-height:calc(100svh - var(--header-closed-height) - 20px);overflow-y:auto;overscroll-behavior:contain;scrollbar-gutter:stable}
 .site-masthead .main-nav>a{min-height:50px}
}
@media(max-width:800px){:root{--header-strip-expanded:28px}}
@media(prefers-reduced-motion:reduce){.site-masthead .proposal,.site-masthead .site-header,.site-masthead .identity{transition:none}}