:root{--paper:#fffaf0;--panel:#fffdfa;--shelf:#fff4d9;--ink:#2b251d;--muted:#736651;--line:#dfc895;--green-deep:#2f6844;--green-dark:#183b29;--gold:#e7bb52}*{box-sizing:border-box}html{color-scheme:light}body{margin:0;min-width:320px;background:linear-gradient(#2f684406 1px,transparent 1px),var(--paper);background-size:100% 28px;color:var(--ink);font-family:"Yu Gothic","Hiragino Kaku Gothic ProN","Noto Sans JP",system-ui,sans-serif;line-height:1.7}button,input{font:inherit}a{color:var(--green-deep)}[hidden]{display:none!important}.skip-link{position:fixed;top:8px;left:8px;z-index:100;padding:8px 12px;background:var(--green-dark);color:white;transform:translateY(-160%)}.skip-link:focus{transform:none}.site-header{border-bottom:1px solid #dfc895e6;background:#fffdfaF5}.header-inner{display:flex;align-items:center;gap:24px;width:min(1320px,calc(100% - 32px));min-height:58px;margin:0 auto}.site-logo{flex:0 0 auto;color:var(--green-dark);font-family:Georgia,"Times New Roman",serif;font-size:22px;font-weight:800;letter-spacing:.035em;text-decoration:none}.site-nav{display:flex;flex:1 1 auto;gap:4px;overflow-x:auto;scrollbar-width:thin;min-width:0}.site-nav a{flex:0 0 auto;padding:7px 9px;border-radius:5px;color:var(--ink);font-size:13px;font-weight:700;text-decoration:none;white-space:nowrap}.site-nav a:hover{background:var(--shelf);color:var(--green-deep)}:focus-visible{outline:3px solid var(--gold);outline-offset:3px}.page-shell{width:min(1100px,calc(100% - 32px));margin:18px auto 42px}.main-content{min-width:0}.hero{margin:0 0 14px;padding:12px 4px 4px}.eyebrow{margin:0;color:var(--green-deep);font-size:11px;font-weight:900;letter-spacing:.14em}h1{margin:3px 0 8px;font-size:clamp(30px,3.3vw,42px);line-height:1.25;letter-spacing:-.04em}h1 span{display:block;margin-top:5px;color:var(--muted);font-size:12px;letter-spacing:.1em}h2{font-size:21px;line-height:1.5;margin:0 0 8px}p{margin:0 0 10px}.panel{padding:20px;border:1px solid var(--line);border-radius:8px;background:var(--panel);box-shadow:0 12px 30px #2d332310;margin-bottom:18px}.intro{display:flex;justify-content:space-between;align-items:center;gap:20px}.button{border:1px solid var(--green-deep);border-radius:5px;background:var(--green-deep);color:#fff;padding:9px 18px;font-weight:800;cursor:pointer;white-space:nowrap}.button:hover{background:var(--green-dark)}.button.secondary{padding:5px 12px;background:var(--paper);color:var(--green-deep);font-size:12px}.button:disabled{opacity:.55;cursor:default}.game-head{display:flex;justify-content:space-between;align-items:center;gap:12px}.metrics{display:flex;gap:20px;margin:0}.metrics div{display:flex;gap:8px;align-items:baseline}.metrics dt{font-size:12px;color:var(--muted)}.metrics dd{margin:0;font-size:19px;font-weight:900}.track{margin:14px 0;padding:14px;background:var(--green-dark);border-radius:6px;color:#fffaf0;overflow:hidden}.track-label{display:flex;justify-content:space-between;color:#e7bb52;font-size:11px;letter-spacing:.1em}.cars{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:14px 8px;min-height:126px;align-content:center;padding:8px 0}.car{position:relative;display:flex;flex-direction:column;justify-content:center;min-height:46px;border:2px solid #e7bb52;border-radius:5px;background:#fff4d9;color:var(--green-dark);text-align:center;line-height:1.4}.car:after{content:'';position:absolute;left:12%;right:12%;bottom:-7px;height:6px;border-left:8px solid #c8d6c6;border-right:8px solid #c8d6c6}.car small{font-size:9px}.car strong{font-size:15px}.car.engine{background:#e7bb52}.new-car{animation:couple .45s ease-out both}.arrived .cars{animation:arrive .65s ease-out both}.current{margin:0 0 10px;font-weight:700}.current strong{font-size:22px}.initial{display:inline-block;padding:0 8px;background:var(--gold);border-radius:4px;color:var(--green-dark)}.choices{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));list-style:none;padding:0;margin:0 0 14px;gap:10px}.choices li{border:1px solid var(--line);border-radius:6px;background:var(--shelf);padding:9px 4px;text-align:center;font-size:23px;font-weight:900;letter-spacing:.03em}label{display:block;font-size:13px;font-weight:800}.input-row{display:flex;gap:8px}input{min-width:0;flex:1;border:1px solid #b6a77d;border-radius:5px;background:#fff;padding:8px 12px;font-size:20px;color:var(--ink)}.hint{font-size:12px;color:var(--muted);margin:5px 0 0}.status{font-size:13px;min-height:22px;margin:8px 0 0;color:var(--green-deep)}.result{padding-top:14px}.history{padding:12px;background:var(--shelf);border-radius:5px;overflow-wrap:anywhere}.notes{margin-top:18px}.notes ol{padding-left:22px;margin:0}.related-links{display:flex;flex-wrap:wrap;gap:10px 20px}.site-footer{padding:24px 16px;border-top:1px solid var(--line);text-align:center;color:var(--muted);font-size:12px}.site-footer nav{display:flex;justify-content:center;flex-wrap:wrap;gap:10px 18px;margin-bottom:10px}.site-footer a{color:var(--muted)}.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}@keyframes couple{from{transform:translateX(60px);opacity:0}to{transform:none;opacity:1}}@keyframes arrive{from{transform:translateX(-12px)}to{transform:none}}@media(max-width:640px){.header-inner{display:block;padding:8px 0}.site-logo{font-size:21px}.site-nav{margin-top:2px}.site-nav a{padding:4px 7px;font-size:12px}.page-shell{width:calc(100% - 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@media(max-width:360px){.cars{min-height:126px}.panel{padding:12px}}
@media(min-width:641px){.page-shell{margin-top:10px}.hero{padding-top:0;margin-bottom:10px}.hero>p:last-child{margin-bottom:0}.panel{padding:16px}.cars{min-height:106px}.track{margin:10px 0}.choices{margin-bottom:10px}}
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.site-footer{padding:24px 16px 28px;background:var(--green-dark);color:#fff}.site-footer nav{gap:8px 18px;margin-bottom:0}.site-footer a{color:#fff;font-size:13px;font-weight:700}.site-footer p{margin:14px 0 0;color:#ffffffc7;font-size:12px}
.is-playing .notes,.is-playing nav[aria-label="関連するタイピング"]{display:none}
.is-ready #train-intro{padding:10px 16px;margin-bottom:10px}.is-ready #train-intro>div{display:none}.is-ready #train-form{display:none}.is-ready #train-reset{visibility:hidden}.is-ready .notes,.is-ready nav[aria-label="関連するタイピング"]{display:none}
.is-ready .notes,.is-ready nav[aria-label="関連するタイピング"]{display:block}