:root{color-scheme:light;--ink:#2e3131;--muted:#6e7473;--mint:#62ad98;--mint-dark:#347a68;--mint-soft:#e9f6f1;--line:#e4e9df;--page:#fffefd}
*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;color:var(--ink);background:var(--page);font:16px/1.8 system-ui,"Yu Gothic",Meiryo,sans-serif}button{font:inherit;cursor:pointer}a{color:inherit}.game-page{width:min(1120px,calc(100% - 32px));margin:0 auto 64px}.game-intro{padding:36px 0 28px}.eyebrow{color:var(--mint-dark);font-size:12px;font-weight:800;margin:0 0 10px}h1{font-size:40px;line-height:1.2;margin:0}.lead{margin:16px 0 0;color:var(--muted)}.game-shell{padding:8px;border:1px solid var(--line);border-radius:8px;background:#fff;box-shadow:0 18px 48px #534b221c;scroll-margin-top:8px}.game-shell:focus-visible{outline:3px solid var(--mint)}button{min-height:44px;padding:7px 12px;border:1px solid #b8ddd2;border-radius:8px;background:#ffffffe8;color:var(--mint-dark);font-size:14px;font-weight:700}.primary-button{background:var(--mint-dark);color:#fff;border-color:var(--mint-dark)}button:hover{border-color:var(--mint)}button:focus-visible,summary:focus-visible,select:focus-visible{outline:3px solid #e8b94f;outline-offset:2px}.game-comment-section{padding:30px 0}.game-comment-note{font-size:14px;color:var(--muted)}.app-comments{padding:20px;border:1px solid var(--line);border-radius:8px}
.views{position:relative;width:100%;height:560px;background:#dceae6;border-radius:5px;overflow:hidden}#scene{display:block;width:100%;height:100%;border:1px solid var(--line);border-radius:5px;object-fit:fill}#canvas-ui{position:absolute;inset:0;pointer-events:none;font-size:12px;line-height:1.4}#canvas-ui button,#canvas-ui select,#canvas-ui a,#canvas-ui summary,#canvas-ui .help-content{pointer-events:auto}#maximize{position:absolute;top:max(8px,env(safe-area-inset-top));right:max(8px,env(safe-area-inset-right));z-index:5;min-width:80px}.canvas-top{position:absolute;top:max(8px,env(safe-area-inset-top));left:max(8px,env(safe-area-inset-left));right:max(8px,env(safe-area-inset-right));display:flex;flex-direction:column;align-items:flex-start;gap:5px;max-height:calc(100% - 160px)}.hud{display:flex;flex-wrap:wrap;gap:4px;padding-right:92px;max-width:100%;text-align:center;line-height:1.3}.hud>span{white-space:nowrap;background:#ffffffe8;border-radius:5px;padding:4px 6px}.hud b{font-size:16px}.hud #cargo-total{padding:0;background:none}.curve,#message{margin:0;max-width:100%;padding:3px 6px;border-radius:4px;background:#ffffffc9;font-weight:700;overflow-wrap:anywhere}.curve{color:var(--mint-dark)}#message{color:var(--ink)}.canvas-actions{display:flex;flex-wrap:wrap;align-items:center;gap:6px;max-width:100%}.actions{display:flex;flex-wrap:wrap;gap:5px}.actions button{padding:5px 10px}.level-controls{display:flex;align-items:center;gap:5px;padding:3px 6px;background:#ffffffe8;border-radius:5px}.level-controls select{max-width:100%;min-height:38px;border:1px solid #b8ddd2;border-radius:6px;background:#fff;color:var(--mint-dark);font:inherit;padding:5px}.steering,.pedals{position:absolute;bottom:64px;display:grid;grid-template-columns:1fr 1fr;width:146px;gap:6px;margin:0}.steering{left:max(10px,env(safe-area-inset-left))}.pedals{right:max(10px,env(safe-area-inset-right))}.steering button,.pedals button{min-height:76px;padding:7px 4px;font-size:15px;touch-action:none;user-select:none;-webkit-user-select:none}.steering small,.pedals small{display:block;font-size:12px}#canvas-ui button[data-held=true]{background:var(--mint-dark);color:#fff}#brake{border-color:#e68b78}.canvas-footer{position:absolute;left:max(8px,env(safe-area-inset-left));right:max(8px,env(safe-area-inset-right));bottom:max(8px,env(safe-area-inset-bottom));display:flex;flex-wrap:wrap;align-items:center;gap:4px 10px;background:#ffffffd9;padding:5px 8px;border-radius:5px;min-height:38px}#best,.game-note{margin:0;color:var(--muted);font-size:12px}.canvas-footer .game-note a{white-space:nowrap}.control-hint{font-size:12px;color:var(--muted)}#help{margin-left:auto}#help summary{cursor:pointer;color:var(--mint-dark);font-weight:700;min-height:28px;display:flex;align-items:center;gap:4px}#help summary::before{content:'▸'}#help[open] summary::before{content:'▾'}.help-content{position:absolute;bottom:calc(100% + 8px);left:0;right:0;background:#fffef6f5;border:1px solid var(--line);border-radius:6px;box-shadow:0 8px 24px #534b2229;padding:8px}.help-heading{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:6px}.help-heading button{min-height:38px}.help-text{max-height:min(230px,calc(100dvh - 170px));overflow:auto;overscroll-behavior:contain;touch-action:pan-y;font-size:13px;line-height:1.6;padding:0 4px}.help-text p{margin:0 0 10px}.help-text .game-note{font-size:13px}#render-error{margin:0;padding:8px;background:#fff1d5;border-radius:5px;max-width:100%;font-size:13px}
.views.maximized{position:fixed;inset:0;width:100%;height:100vh;height:100dvh;z-index:10000;border-radius:0;overscroll-behavior:none;touch-action:none}.views.maximized #scene{border:0;border-radius:0}
@media(max-width:700px){h1{font-size:34px}.game-intro{padding-top:28px}.views{height:620px}.control-hint{flex-basis:100%}.canvas-footer{gap:3px 8px}.steering,.pedals{bottom:86px}.hud{padding-right:90px}.actions button{font-size:13px}}
@media(max-width:460px){.game-page{width:calc(100% - 24px)}.game-shell{padding:5px}.views{height:640px}.hud>span{font-size:12px;padding:4px}.hud b{font-size:15px}.canvas-top{gap:4px}.canvas-actions{gap:4px}.steering,.pedals{width:min(142px,calc((100% - 28px)/2));gap:5px}.steering button,.pedals button{min-height:70px}.curve,#message{font-size:12px;line-height:1.4}.canvas-footer{font-size:11px}.control-hint{font-size:11px}.level-controls select{font-size:12px}}
@media(max-height:500px) and (min-width:600px){.views{height:360px}.views.maximized{height:100dvh}.canvas-top{right:100px;gap:3px}.hud{padding-right:0}.curve,#message{font-size:11px;padding:2px 5px}.canvas-actions{gap:4px}.actions button{min-height:38px;padding:4px 8px;font-size:12px}.level-controls{padding:2px 5px}.level-controls select{min-height:34px;font-size:12px}.steering,.pedals{bottom:52px}.steering button,.pedals button{min-height:60px}.canvas-footer{min-height:32px;font-size:11px}.control-hint{flex-basis:auto;font-size:11px}.help-text{max-height:160px}}

.menu-panel{position:absolute;inset:60px 12px 90px;display:flex;align-items:center;justify-content:center;pointer-events:none}.menu-card{max-width:min(520px,100%);max-height:100%;overflow:auto;pointer-events:auto;text-align:center;padding:24px;border:1px solid #b8ddd2;border-radius:12px;background:#fffef6f2;box-shadow:0 12px 32px #534b2229}.menu-card h2{margin:0 0 12px;font-size:36px;line-height:1.2;color:var(--mint-dark)}.menu-card p{margin:0 0 18px;font-size:16px;line-height:1.6}.menu-card>.primary-button{min-height:60px;min-width:200px;font-size:22px;padding:12px 22px}.menu-card .level-controls{justify-content:center;margin:0 0 18px;background:none}.result-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:10px}.result-actions button{min-height:48px;font-size:16px;padding:9px 15px}#stage[data-screen=home] .menu-panel{inset:60px 12px}#stage[data-screen=home] .menu-card{padding:0;background:none;border:0;box-shadow:none}#stage[data-screen=home] #enter-ready{min-width:200px}.menu-card #panel-summary{overflow-wrap:anywhere}@media(max-width:460px){.menu-card{padding:20px 14px}.menu-card h2{font-size:32px}.menu-card p{font-size:14px}.menu-card>.primary-button{min-width:190px;font-size:20px}.result-actions{flex-direction:column}.result-actions button{min-height:46px}}@media(max-height:500px) and (min-width:600px){.menu-panel{inset:54px 90px 54px}.menu-card{padding:14px 20px}.menu-card h2{font-size:28px;margin-bottom:6px}.menu-card p{font-size:14px;margin-bottom:10px}.menu-card>.primary-button{min-height:48px;font-size:20px}.menu-card .level-controls{margin-bottom:10px}.result-actions button{min-height:42px;font-size:14px;padding:6px 12px}}

/* Game notes use the existing page palette and stay outside the canvas. */
.game-page .description-section{margin:36px 0 0}.game-page .description-section>h2{font-size:26px;line-height:1.4;margin:0 0 12px}.game-page .description-section>p{margin:0 0 20px;color:var(--muted)}.game-page .description-panel{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;padding:24px;border:1px solid var(--line);border-left:5px solid var(--mint);border-radius:8px;background:#fff}.game-page .description-block{min-width:0}.game-page .description-block:last-child{grid-column:1/-1}.game-page .description-block h3{margin:0 0 14px;font-size:19px;line-height:1.5;color:var(--mint-dark)}.game-page .guide-list{margin:0}.game-page .guide-list>div{padding:9px 0;border-bottom:1px solid #edf0eb}.game-page .guide-list>div:last-child{border-bottom:0}.game-page .guide-list dt{font-weight:700;line-height:1.6}.game-page .guide-list dd{margin:4px 0 0;color:var(--muted);font-size:15px;line-height:1.8;overflow-wrap:anywhere}@media(max-width:700px){.game-page .description-panel{grid-template-columns:1fr;padding:20px;gap:24px}.game-page .description-block:last-child{grid-column:auto}.game-page .description-section{margin-top:28px}}