:root{--bg:#f6f4ef;--ink:#14262d;--muted:#53656c;--accent:#cf562b;--line:#d9dedc;--panel:#fff;--blue:#3986aa}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.55 system-ui,-apple-system,Segoe UI,sans-serif}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}button,a{cursor:pointer}a{color:inherit}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible{outline:3px solid #2495c0;outline-offset:4px}button{border:0}h1,h2,h3,p,figure{margin:0}p+p{margin-top:14px}h1{font:700 clamp(48px,6.5vw,94px)/1.07 Georgia,serif;letter-spacing:-2px}h1 em{font-weight:400}h2{font:500 clamp(28px,3vw,42px)/1.2 Georgia,serif;letter-spacing:-.5px}h3{font-size:19px}main{max-width:1280px;margin:auto;padding:0 48px}.hero{height:650px;min-height:560px;background:linear-gradient(90deg,rgba(9,28,37,.87),rgba(9,28,37,.18)),url('assets/hero.jpg') center 48%/cover;color:white;position:relative;padding:35px max(48px,calc((100vw - 1184px)/2))}.brand{font-size:18px;letter-spacing:2px;font-weight:750;display:flex;align-items:center;justify-content:space-between}.brand span{font-size:12px;letter-spacing:1.5px;font-weight:450}.hero-copy{max-width:700px;margin-top:82px}.eyebrow{font-size:12px;letter-spacing:2px;font-weight:700;margin-bottom:20px;color:var(--muted)}.hero .eyebrow{color:#eac1a6}.intro{max-width:530px;margin:25px 0 30px;font-size:18px;color:#e7eef0}.button{display:inline-flex;align-items:center;justify-content:center;padding:12px 20px;border-radius:4px;text-decoration:none;font-size:14px;font-weight:650;min-height:46px;transition:background .15s}.accent{background:var(--accent);color:#fff}.accent:hover{background:#ad4520}.glass{background:#ffffff16;border:1px solid #ffffff50;color:#fff;margin-left:12px}.dark{background:var(--ink);color:#fff}.quiet{border:1px solid var(--line);background:transparent}.full{width:100%}.hero-caption{position:absolute;bottom:20px;right:36px;font-size:12px;color:#e6edf0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:35px;margin:64px 0 28px}.section-head p:not(.eyebrow){max-width:380px;color:var(--muted);font-size:14px}.section-head .eyebrow{margin-bottom:10px}.route-layout{display:grid;grid-template-columns:260px 1fr;gap:30px}.route-sidebar{padding:24px;background:var(--panel);border:1px solid var(--line);border-radius:8px;align-self:start}.route-sidebar label:not(.check){font-size:13px;font-weight:650}select{width:100%;border:1px solid #c8d1d4;border-radius:4px;background:#fff;color:var(--ink);padding:10px;margin-top:7px;min-height:44px}.date{font-size:12px;color:var(--muted);margin-top:15px}.metrics{margin:18px 0 22px;display:grid;grid-template-columns:1fr 1fr;gap:18px 10px}.metrics dt{font-size:11px;color:var(--muted)}.metrics dd{font-size:22px;font-weight:650;margin:2px 0 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0;display:grid;grid-template-columns:1fr 1.1fr;gap:80px;border-top:1px solid var(--line);padding-top:55px}.story p:not(.eyebrow){font-size:14px;color:var(--muted);margin-top:20px}.stage-list{display:flex;flex-direction:column}.stage{display:grid;grid-template-columns:70px 1fr 58px;gap:12px;text-align:left;background:none;color:var(--ink);padding:12px 0;border-bottom:1px solid var(--line);align-items:center;font-size:13px;min-height:49px}.stage span:first-child{font-size:11px;color:var(--muted)}.stage span:last-child{text-align:right;font-size:11px;color:var(--muted)}.stage:hover,.stage.selected{color:var(--accent)}.flight-story{display:grid;grid-template-columns:1fr 1fr;gap:55px;background:#e8eceb;border-radius:8px;padding:35px;margin:60px 0}.flight-story p{font-size:14px;color:var(--muted);margin-top:18px}.flight-story .eyebrow{margin-top:0}.flight-times{margin:22px 0;display:flex;flex-direction:column;gap:12px}.flight-times span{display:block;font-size:11px;color:var(--muted)}.flight-times strong{font-size:15px}.flight-story .small{font-size:12px;margin-bottom:20px}.flight-story figure{align-self:center}.flight-story img{width:100%;border-radius:5px;display:block;max-height:390px;object-fit:cover}.flight-story figcaption{font-size:11px;color:var(--muted);margin-top:8px}.film video{width:100%;display:block;aspect-ratio:16/9;background:#10212d;border-radius:8px}.film>.text-button{display:inline-block;margin-top:12px}.downloads{margin:65px 0;display:grid;grid-template-columns:1fr 1fr;gap:65px;border-top:1px solid var(--line);padding-top:40px}.downloads p:not(.eyebrow){font-size:13px;color:var(--muted);margin-top:15px}.downloads a{display:block;padding:16px 0;text-decoration:none;border-bottom:1px solid var(--line)}.downloads strong{display:block;font-size:16px}.downloads a span{display:block;color:var(--muted);font-size:12px;margin-top:4px}.downloads a:hover strong{color:var(--accent)}.methods{font-size:12px;color:var(--muted);margin-bottom:50px}.methods summary{cursor:pointer;min-height:44px}.methods p{margin-top:15px}footer{display:flex;justify-content:space-between;gap:20px;padding:30px max(48px,calc((100vw - 1184px)/2));border-top:1px solid var(--line);font-size:11px;letter-spacing:1px}footer span{color:var(--muted);letter-spacing:0}.poi-icon{white-space:nowrap;font:600 11px system-ui;color:#18323b;text-shadow:0 1px white,1px 0 white,-1px 0 white,0 -1px white}.poi-icon::before{content:'';display:inline-block;width:7px;height:7px;background:#213b48;border:2px solid #fff;border-radius:50%;margin-right:4px;box-shadow:0 0 0 1px #294755}.leaflet-container{background:#c4d0d5;font-family:inherit}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:900px){main{padding:0 24px}.hero{padding:30px 24px;height:620px}.hero-copy{margin-top:80px}.route-layout{grid-template-columns:210px 1fr;gap:20px}.route-sidebar{padding:18px}.metrics dd{font-size:19px}.map-shell{height:410px}.playback{flex-wrap:wrap;gap:10px}.playback output{min-width:auto}.story,.flight-story,.downloads{gap:30px}.flight-story{padding:25px}.section-head{gap:20px}.profile-head{flex-wrap:wrap}.profile-head label{width:100%;min-width:0}.profile-head select{width:auto;margin-left:10px}.chart-wrap{height:220px}}
@media(max-width:650px){main{padding:0 18px}.hero{height:620px;padding:25px 22px;background-position:58% center}.brand{font-size:14px}.brand span{font-size:9px}.hero-copy{margin-top:90px}.intro{font-size:16px;max-width:350px}.glass{margin:10px 0 0;display:flex;max-width:220px}.hero-caption{font-size:10px;right:18px}.section-head{display:block;margin:40px 0 24px}.section-head p:not(.eyebrow){margin-top:14px;max-width:none}.route-layout{display:flex;flex-direction:column;gap:24px}.route-sidebar{padding:18px}.metrics{grid-template-columns:repeat(4,1fr);gap:9px;margin:18px 0}.metrics dt{font-size:10px}.metrics dd{font-size:18px}.metrics dd#time{font-size:15px}.legend{flex-direction:row;flex-wrap:wrap;margin:15px 0 7px;gap:14px}.note{margin-top:12px}.check{margin:0}.route-sidebar .quiet{width:auto;padding:9px 15px;min-height:40px}.map-shell{height:400px}.tabs button{flex:1}.map-foot{font-size:9px;gap:4px}.playback{gap:12px}.playback button{padding:10px 13px}.playback output{width:100%;text-align:right;margin-top:-8px}.story,.flight-story,.downloads{display:block;margin:40px 0}.story{padding-top:30px}.stage-list{margin-top:25px}.flight-story{padding:22px}.flight-story figure{margin-top:25px}.downloads>div+div{margin-top:22px}.film .section-head{margin-top:45px}footer{padding:24px 18px;flex-direction:column;gap:8px}.chart-wrap{height:220px}.methods{margin-bottom:30px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
.embedded .hero,.embedded footer,.embedded .story{display:none}.embedded main{max-width:1280px;padding:0 12px}.embedded .section-head:first-child{margin-top:24px}.embedded .methods{margin-bottom:20px}
.hero{height:auto;min-height:650px;padding-bottom:88px}.hero-copy{padding-bottom:0}.hero-actions{display:flex;flex-wrap:wrap;gap:12px}.hero-actions .glass{margin:0}.hero-caption{bottom:24px}.terrain-label-layer{position:absolute;inset:0;pointer-events:none;overflow:hidden}.terrain-poi-label{position:absolute;left:0;top:0;width:max-content;max-width:180px;padding:3px 7px;background:rgba(16,39,51,.82);color:#fff;font-size:11px;line-height:1.4;border-radius:3px;white-space:nowrap;box-shadow:0 1px 4px #0002}.terrain-poi-label[hidden]{display:none}
@media(max-width:900px){.hero{height:auto;min-height:620px}}@media(max-width:650px){.hero{height:auto;min-height:620px;padding-bottom:78px}.hero-copy{margin-top:70px}.hero-actions .button{max-width:none}.metrics{grid-template-columns:repeat(2,1fr)}.terrain-poi-label{font-size:11px;max-width:165px}}
.alternate-name{font-size:.53em;font-weight:400;white-space:nowrap}.landmark-control{margin-top:20px}.landmark-info{font-size:12px;line-height:1.5;color:var(--muted);margin-top:10px}.landmark-info:empty{display:none}.landmark-label{background:rgba(16,59,66,.86)}.route-poi::before{background:#3195a9}.landmark-note{font-size:12px;line-height:1.6;color:var(--muted);margin:15px 0 0}.poi-icon span{font-size:11px}.leaflet-popup-content p{font-size:12px;line-height:1.5;margin:8px 0}.leaflet-popup-content strong{font-size:14px}
#landmark-photo-link{display:block;margin-top:12px}#landmark-photo-link[hidden]{display:none}#landmark-photo{display:block;width:100%;max-height:230px;object-fit:contain;border-radius:4px}

/* Revision 4: concise controls and comfortable reading */
.hero-copy{max-width:1050px}h1{font-size:clamp(48px,5.5vw,86px)}h1 em{display:inline-block;white-space:nowrap;font-size:.86em}.intro{max-width:650px}.metrics dd{white-space:nowrap;font-size:20px}.metrics div{min-width:0}.tabs button:not(.active){border:1px solid #c4cccb;color:var(--ink);background:#fff}.route-sidebar .note{display:none}.expedition-story{border-top:1px solid var(--line);padding-top:45px;margin:55px 0}.story-lead{max-width:760px;margin-top:20px;color:var(--muted)}.story-cards{display:grid;grid-template-columns:1fr 1fr;gap:35px;margin-top:30px}.story-cards article{padding:24px;background:#fff;border:1px solid var(--line);border-radius:8px}.story-cards p{font-size:15px;color:var(--muted);margin-top:14px}.story-cards img{width:100%;height:240px;object-fit:cover;border-radius:4px;margin-bottom:20px}.story-cards article:last-child{grid-column:1/-1}.embedded .expedition-story{display:block}
@media(max-width:900px){.metrics{grid-template-columns:1fr}.metrics dd{font-size:20px}}@media(max-width:650px){h1{font-size:clamp(33px,8vw,48px);letter-spacing:-1px}h1 em{font-size:.78em}.hero-copy{margin-top:65px}.metrics{grid-template-columns:1fr 1fr}.story-cards{grid-template-columns:1fr;gap:20px}.story-cards article{padding:20px}.story-cards img{height:210px}}

.story-cards{align-items:start}.story-cards img{height:auto;max-height:none;object-fit:contain;background:#eef0ed}.story-cards .portrait-photo{max-height:640px}.story-cards article:last-child img{max-height:620px}.story-cards article:last-child{grid-column:1/-1}

.story-cards{display:block;column-count:2;column-gap:24px}.story-cards article{display:inline-block;width:100%;break-inside:avoid;margin:0 0 24px}.map-foot{align-items:center;flex-wrap:wrap}#follow3d[aria-pressed=true]{background:#cd5029;color:white}.story-cards .portrait-photo{max-height:none}@media(max-width:650px){.story-cards{column-count:1}}