@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap');
:root{color-scheme:dark;--ink:#102d39;--cream:#fff0cb;--mint:#7ae7cf;--muted:#acbec5;font-family:'DM Sans',sans-serif;background:#0c202c;color:#f5f4e9}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 75% 15%,#23495488,transparent 45%),#0c202c}a{color:inherit}.topbar{height:94px;margin:0 5%;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #ffffff20;gap:24px}.brand{font:500 18px 'Space Grotesk',sans-serif;letter-spacing:1.5px;text-decoration:none;display:flex;align-items:center;gap:7px}.brand strong{font-weight:700}.brand-icon{font-size:35px;color:var(--mint);margin-right:8px}.nav-label,.planet-label{font-size:12px;letter-spacing:2px;color:#c1d0d3}.planet-label span{color:var(--mint);font-size:20px;margin-left:12px}.intro{position:relative;z-index:2;margin:64px 7% 0;pointer-events:none}.eyebrow{font:600 12px 'Space Grotesk',sans-serif;letter-spacing:2px;color:var(--mint)}h1{font:500 clamp(40px,4.7vw,72px)/1.06 'Space Grotesk',sans-serif;letter-spacing:-3px;margin:19px 0 22px}h1 em{font-style:normal;color:var(--mint)}.intro p{font-size:16px;line-height:1.7;color:#c0ced2}.world{position:relative;width:100%;aspect-ratio:1.5;margin-top:-210px}.landscape{width:100%;height:auto;display:block;pointer-events:none}.missions{list-style:none;padding:0;margin:0}.mission{position:absolute;left:var(--x);top:var(--y);transform:translate(-50%,-50%)}.marker{width:clamp(28px,3vw,46px);height:clamp(28px,3vw,46px);border-radius:50%;display:grid;place-items:center;color:#556e6a;font:600 clamp(12px,1.15vw,18px) 'Space Grotesk',sans-serif;position:relative;z-index:1;background:#fff0cb}.mission-label{position:absolute;bottom:calc(100% + 10px);left:50%;transform:translateX(-50%);text-align:center;white-space:nowrap;color:#163c43;text-shadow:0 1px 8px #a4f3df66}.mission-label h2{font:700 14px 'Space Grotesk',sans-serif;margin:0 0 3px}.mission-label span{font-size:12px}.current .marker{background:var(--ink);color:var(--cream);outline:2px solid var(--cream);outline-offset:5px;box-shadow:0 0 0 13px #fff0cb28;font-size:19px}.mission-card{position:absolute;left:calc(100% + 30px);bottom:-56px;width:320px;padding:25px 27px;background:#102e39;border:1px solid #8ad7c764;border-radius:18px;box-shadow:0 16px 40px #082f3940;color:#f8f3df}.mission-card .eyebrow{font-size:11px;letter-spacing:1.4px}.mission-card h2{font:500 24px/1.15 'Space Grotesk',sans-serif;letter-spacing:-.7px;margin:11px 0}.mission-card p{font-size:14px;line-height:1.6;color:#c7d5d7;margin:0 0 20px}.start{display:flex;min-height:48px;align-items:center;justify-content:center;background:var(--cream);color:var(--ink);border:0;border-radius:8px;font:700 15px 'DM Sans',sans-serif;text-decoration:none;transition:background .15s,transform .15s}.start[href]:hover{background:#ffe0a0;transform:translateY(-2px)}.start:focus-visible,.brand:focus-visible{outline:3px solid var(--mint);outline-offset:5px}.start[aria-disabled]{opacity:.7;cursor:default}.link-status{display:block;text-align:center;margin-top:10px;font-size:12px;color:#bfced0}.map-caption{position:absolute;right:6%;top:25%;display:flex;align-items:center;gap:12px;font:500 11px 'Space Grotesk',sans-serif;letter-spacing:2px;color:#b3cecf}.tiny-cross{font-size:28px;color:var(--mint)}.caption-line{width:55px;height:1px;background:#b3cecf66}.map-key{position:absolute;bottom:2%;left:6%;display:flex;align-items:center;gap:10px;color:var(--ink);font:700 10px 'Space Grotesk',sans-serif;letter-spacing:1px}.key-ring{height:13px;width:13px;border:2px solid var(--ink);border-radius:50%}.key-dot{height:9px;width:9px;background:var(--cream);border-radius:50%;margin-left:15px}footer{display:flex;align-items:center;justify-content:space-between;padding:26px 5%;gap:20px;color:#a6bfc5;font-size:11px;letter-spacing:1.5px}footer p{font-size:14px;letter-spacing:0}footer>span:last-child{color:var(--mint)}
@media(min-width:1600px){main{max-width:1700px;margin:auto}.world{margin-top:-220px}}
@media(min-width:761px) and (max-width:1100px){.intro{margin-top:40px}.world{margin-top:-90px}.mission-card{width:260px;padding:20px;bottom:-55px;left:calc(100% + 22px)}.mission-card h2{font-size:21px}.mission-card p{font-size:14px}.map-caption{top:20%}.mission-label{bottom:calc(100% + 7px)}}
@media(max-width:760px){.topbar{height:76px;margin:0 6%}.brand{font-size:15px;letter-spacing:1px}.brand-icon{font-size:28px}.nav-label{display:none}.planet-label{font-size:10px;letter-spacing:1px}.planet-label span{display:none}.intro{margin:42px 7% 0}.eyebrow{font-size:11px}h1{font-size:clamp(38px,8.8vw,62px);letter-spacing:-2px;margin:17px 0}.intro p{font-size:15px;line-height:1.6}.world{margin-top:0;aspect-ratio:auto;padding:205px 7% 45px;overflow:hidden;background:linear-gradient(180deg,transparent 100px,#1d6c72 470px,#174b58 100%)}.landscape{position:absolute;top:-10px;left:-13%;width:126%;max-width:none;mask-image:linear-gradient(#000 45%,transparent 100%);opacity:.95}.map-caption{top:155px;right:7%;font-size:10px;color:#143b43}.tiny-cross{color:#143b43}.caption-line{background:#143b4380}.missions{position:relative;display:flex;flex-direction:column;gap:0}.missions:before{content:'';position:absolute;left:24px;top:30px;bottom:42px;width:3px;background:repeating-linear-gradient(to bottom,#ffe7b4 0 8px,transparent 8px 16px);opacity:.7}.mission{position:relative;left:auto;top:auto;transform:none;display:flex;align-items:center;gap:27px;min-height:102px}.marker{width:50px;height:50px;flex-shrink:0;font-size:16px;border:5px solid #24646a;color:#264d51;background:var(--cream)}.current{align-items:flex-start;margin-bottom:26px;gap:21px}.current .marker{width:50px;height:50px;outline-offset:0;border:5px solid #174a53;box-shadow:0 0 0 6px #fff0cb25;margin-top:21px}.mission-card{position:relative;left:auto;bottom:auto;width:auto;flex:1;padding:23px 20px;border-radius:14px}.mission-card h2{font-size:25px}.mission-card p{font-size:14px}.mission-label{position:static;transform:none;text-align:left;color:#fcf0d6;white-space:normal;text-shadow:none}.mission-label h2{font-size:18px;margin-bottom:6px}.mission-label span{font-size:14px;color:#c7dcd9}.map-key{position:relative;left:auto;bottom:auto;margin:20px 0 0 4px;color:#d4e8e4;flex-wrap:wrap;font-size:10px}.key-ring{border-color:var(--cream)}footer{padding:25px 7%;flex-wrap:wrap;gap:6px}footer p{order:3;width:100%;margin:10px 0;font-size:13px}footer>span:last-child{font-size:10px}.mission-card .eyebrow{font-size:10px;letter-spacing:1px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}
/* Mission 1 opens the same accessible dialog from either control. */
button.start{width:100%;cursor:pointer}
button.marker{padding:0;border:0;cursor:pointer;transition:background .15s,color .15s,box-shadow .15s}
.current button.marker:hover{background:var(--cream);color:var(--ink);box-shadow:0 0 0 13px #fff0cb55}
button.start:hover{background:#ffe0a0;transform:translateY(-2px)}
.current button.marker:focus-visible{outline:3px solid var(--mint);outline-offset:6px;box-shadow:0 0 0 11px var(--ink)}
button.start:focus-visible{outline:3px solid var(--mint);outline-offset:5px}
.mission-dialog{width:min(460px,calc(100% - 36px));max-height:calc(100dvh - 40px);padding:32px;background:#102e39;color:#f8f3df;border:1px solid #8ad7c7;border-radius:18px;box-shadow:0 24px 80px #0008}
.mission-dialog::backdrop{background:#06151dcc;backdrop-filter:blur(4px)}
.mission-dialog h2{font:500 28px/1.2 'Space Grotesk',sans-serif;letter-spacing:-.7px;margin:0 0 16px}
.mission-dialog p{font-size:16px;line-height:1.65;color:#c7d5d7;margin:0 0 26px}
body:has(.mission-dialog[open]){overflow:hidden}
@media(max-width:760px){.current button.marker{border:5px solid #174a53}}
/* Mission 1 activity choice: two cards on desktop, a single column on phones. */
.activity-choice{width:min(760px,calc(100% - 32px));padding:30px}
.choice-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:24px}
.choice-heading h2{margin:8px 0 0}.close-choice{font:600 14px 'DM Sans',sans-serif;border:1px solid #7fa6ac;border-radius:8px;padding:10px 16px;background:transparent;color:#f8f3df;cursor:pointer;min-height:44px}
.close-choice:hover{background:#294a54}.close-choice:focus-visible{outline:3px solid var(--mint);outline-offset:4px}
.activity-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.activity-card{display:flex;flex-direction:column;min-width:0;border:1px solid #638d95;border-radius:13px;padding:24px;background:#173a46}
.activity-type{font:600 11px 'Space Grotesk',sans-serif;letter-spacing:1.6px;color:var(--mint)}
.activity-card h3{font:500 25px/1.2 'Space Grotesk',sans-serif;letter-spacing:-.5px;margin:15px 0 14px}
.activity-card p{font-size:16px;line-height:1.6;margin:0 0 24px}.activity-card .activity-play{margin-top:auto}
.activity-status{font-size:13px;color:#c7d5d7;text-align:center;margin-top:12px}
button.activity-play:disabled{background:#405b61;color:#d4dfe0;cursor:not-allowed;transform:none;opacity:1}
@media(max-width:600px){.activity-choice{padding:22px;max-height:calc(100dvh - 32px)}.activity-grid{grid-template-columns:1fr;gap:16px}.activity-card{padding:21px}.choice-heading{margin-bottom:20px}.activity-card h3{font-size:24px}}
/* Night retains the original palette; Day uses a clear blue sky and teal ink. */
.header-actions{display:flex;align-items:center;gap:22px}.theme-toggle{flex-shrink:0;min-height:44px;padding:10px 15px;border-radius:24px;border:1px solid #76adad;background:#173a46;color:#f8f3df;font:600 14px 'DM Sans',sans-serif;cursor:pointer}.theme-toggle:hover{background:#285461}.theme-toggle:focus-visible{outline:3px solid var(--mint);outline-offset:4px}
:root[data-theme=day]{color-scheme:light;--mint:#09645e;background:#dff3fa;color:#102d39}
[data-theme=day] body{background:radial-gradient(ellipse at 75% 15%,#fff9db99,transparent 45%),#dff3fa}
[data-theme=day] .topbar{border-bottom-color:#295d6a30}
[data-theme=day] :is(.nav-label,.planet-label,.intro p,footer){color:#385e69}
[data-theme=day] .theme-toggle{background:#ffffffb3;color:#124952;border-color:#6c9ea7}
[data-theme=day] .theme-toggle:hover{background:#c4e8ed}
[data-theme=day] :is(.mission-card,.mission-dialog){background:#f2fbfc;color:#102d39;border-color:#70a5ac}
[data-theme=day] :is(.mission-card p,.mission-dialog p,.link-status,.activity-status){color:#3b606a}
[data-theme=day] .activity-card{background:#e0f1f3;border-color:#88b4ba}
[data-theme=day] .close-choice{color:#124952;border-color:#6c9ea7}
[data-theme=day] .close-choice:hover{background:#c4e8ed}
[data-theme=day] .start{background:#12665f;color:#fff}
[data-theme=day] .start:not(:disabled):hover{background:#0b4f4a}
[data-theme=day] button.activity-play:disabled{background:#c4d6d9;color:#526c73}
[data-theme=day] .map-caption{color:#315e65}
[data-theme=day] .caption-line{background:#315e6566}
@media(max-width:1100px){.nav-label{display:none}}
@media(max-width:760px){.topbar{gap:12px;flex-wrap:wrap;height:auto;min-height:76px;padding:14px 0}.header-actions{gap:10px;margin-left:auto}.header-actions .planet-label{display:none}.theme-toggle{font-size:12px;padding:10px 12px}.brand{gap:4px;font-size:14px}.brand-icon{margin-right:3px}
[data-theme=day] .world{background:linear-gradient(180deg,transparent 100px,#a2ddd6 470px,#c8ece9 100%)}
[data-theme=day] .mission-label{color:#163c43}
[data-theme=day] .mission-label span{color:#355f64}
[data-theme=day] .map-key{color:#163c43}
[data-theme=day] .key-ring{border-color:#163c43}}
.theme-toggle{width:44px;height:44px;min-height:44px;padding:0;display:grid;place-items:center;border-radius:50%;font-size:25px;line-height:1}.theme-toggle span{display:block;line-height:1}