.gb-entry{border:1px solid #829987;border-radius:18px;background:var(--mint);padding:20px;margin:20px 0;text-align:center}.gb-entry h2{margin:0;font-size:22px}.gb-entry p{font-size:13px;margin:8px 0 14px}.gb-study{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(240px,1fr);padding:24px;gap:24px;align-items:center}.gb-study-visual{min-width:0}.gb-study-visual small{display:block;font-size:11px;line-height:1.5;margin:10px 0;color:var(--muted)}.gb-study-fact h2{font-size:23px;margin:0 0 12px}.gb-study-fact p{font-size:15px;line-height:1.8}.gb-study-fact button{margin:16px 8px 0 0}.gb-fact-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:20px 0}.gb-fact-list button{text-align:left;padding:16px;white-space:normal}.gb-fact-list strong{display:block;font-size:14px}.gb-fact-list span{display:block;font-size:12px;line-height:1.7;font-weight:400;margin-top:6px}.gb-fact-list .selected{border:2px solid var(--green)}.gb-map{display:block;width:100%;height:clamp(240px,36vw,400px);border:1px solid #829987;border-radius:16px;background:#e7f2ed;color:#284e43;overflow:hidden}.gb-map text{font:700 16px Nunito,Arial,sans-serif;fill:currentColor}.gb-map .gb-ground{fill:#e4ebd0;stroke:#93a88d}.gb-map .gb-water{fill:#daeef3;stroke:#779eaa}.gb-map .gb-land{fill:#b8d1ab;stroke:#718c73;stroke-width:.7}.gb-map .gb-grid{fill:none;stroke:#a9b5a4;stroke-width:3}.gb-map .gb-equator{fill:none;stroke:#537f8d;stroke-width:1.5;stroke-dasharray:6 4}.gb-map .gb-needle{fill:#b96559}.gb-marker circle{fill:#fff9e7;stroke:#416c59;stroke-width:2;vector-effect:non-scaling-stroke}.gb-marker[role=button]{cursor:pointer;outline:none}.gb-marker[role=button]:hover circle,.gb-marker[role=button]:focus-visible circle{fill:#a8dfc5;stroke-width:3}.gb-marker.gb-marked circle{fill:#f4c84e;stroke:#6b4714;stroke-width:3}.gb-marker.gb-wrong circle{fill:#e69991;stroke:#923d36}.gb-map .gb-place-name{font-size:12px;paint-order:stroke;stroke:#f6f9ed;stroke-width:3;stroke-linejoin:round}.gb-map .gb-village-label{font-size:14px}.gb-habitat-art{font-size:clamp(28px,6vw,64px);text-align:center;padding:30px 12px;background:var(--mint);border-radius:16px;letter-spacing:8px}.gb-play{max-width:1000px}.gb-play>.gc-progress{margin-bottom:18px}.gb-exercise{padding:24px;text-align:center}.gb-exercise h1{font-size:24px;line-height:1.5;margin:0 0 18px}.gb-exercise-layout{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(220px,1fr);gap:20px;align-items:center}.gb-exercise-layout>div{min-width:0}.gb-exercise .gc-options{grid-template-columns:1fr}.gb-exercise .gb-map{height:clamp(230px,35vw,390px)}.gb-map-instruction,.gb-correction{font-size:13px;line-height:1.6}.gb-correction{min-height:46px}.gb-study .gb-map-landscape{height:430px}html[data-theme=dark] .gb-entry,html[data-theme=dark] .gb-habitat-art{background:#294837}html[data-theme=dark] .gb-map{background:#253e36;border-color:#829987;color:#deecdf}html[data-theme=dark] .gb-map .gb-water{fill:#294d55;stroke:#779eaa}html[data-theme=dark] .gb-map .gb-land{fill:#6d917b;stroke:#b5cbb8}html[data-theme=dark] .gb-map .gb-ground{fill:#324c3d;stroke:#93a88d}html[data-theme=dark] .gb-marker text{fill:#284e43}html[data-theme=dark] .gb-map .gb-place-name{fill:#deecdf;stroke:#253e36}@media(max-width:750px){.gb-study,.gb-exercise-layout{grid-template-columns:1fr}.gb-study,.gb-exercise{padding:18px}.gb-fact-list{grid-template-columns:repeat(2,minmax(0,1fr))}.gb-exercise .gc-options{grid-template-columns:repeat(2,minmax(0,1fr))}.gb-exercise h1{font-size:21px}.gb-study .gb-map-landscape{height:360px}.gb-map{height:300px}.gb-map-earth-land,.gb-map-earth-ocean{height:240px}}@media(max-width:420px){.gb-fact-list{grid-template-columns:1fr}.gb-exercise .gc-options button{font-size:12px;padding:10px}}