@charset "UTF-8";
:root{--paper:#f5f4ed;--ink:#252520;--yellow:#f0ff55;--coral:#ff785f;--green:#3b7861;--muted:#787970;--line:#d8d8cf;--white:#fffef9;--shadow:5px 6px 0 var(--ink);font-family:"Hiragino Sans","Noto Sans JP","Yu Gothic",Meiryo,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none;-webkit-font-smoothing:antialiased}
*{box-sizing:border-box}body{margin:0;min-width:320px;background-image:radial-gradient(#2525201c .7px,transparent .7px);background-size:9px 9px}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;color:inherit;cursor:pointer;touch-action:manipulation}button:disabled{cursor:default}a{color:inherit}button,a,summary{outline-offset:6px}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #388268}button{border-radius:0}svg{display:block;width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.svg-defs{position:absolute;width:0;height:0;overflow:hidden}h1,h2,h3,p{margin:0}button,summary{user-select:none}mark{color:var(--ink);background:var(--yellow);padding:1px 3px;box-decoration-break:clone;-webkit-box-decoration-break:clone}kbd{font:600 11px ui-monospace,monospace;background:#eaeae3;border:1px solid #d4d4cc;border-bottom-width:2px;border-radius:4px;padding:2px 5px}a,button{touch-action:manipulation}[hidden]{display:none!important}
.site-header{max-width:1264px;margin:auto;padding:23px 40px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--ink);height:93px}.brand{text-decoration:none;display:flex;align-items:center;gap:12px;font-family:"Arial Black",Arial,sans-serif;font-size:25px;font-weight:900;letter-spacing:-1.6px}.brand-caption{font-family:"Hiragino Sans",sans-serif;letter-spacing:.08em;font-size:10px;font-weight:600;margin-left:15px;padding-left:20px;border-left:1px solid #c4c4bc}.header-actions{display:flex;align-items:center;gap:24px}.text-button{border:0;background:none;padding:12px 0;font-size:12px;font-weight:700;letter-spacing:.04em}.text-button span{margin-left:6px}.sound-button{border:1px solid var(--ink);background:var(--paper);width:40px;height:40px;display:grid;place-items:center;border-radius:50%}.sound-button svg{width:19px;height:19px;stroke-width:1.6}.sound-button[aria-pressed=true]{background:var(--yellow)}
#main{max-width:1184px;margin:auto;outline:none;min-height:calc(100svh - 172px)}.home{padding:66px 40px 0;animation:enter .5s ease both}.hero{display:grid;grid-template-columns:1.13fr 1fr;gap:68px;align-items:center;min-height:515px}.eyebrow{font:700 10px/1.4 ui-monospace,SFMono-Regular,monospace;letter-spacing:.14em}.kicker{display:inline-flex;align-items:center;gap:10px;border:1px solid var(--ink);border-radius:20px;background:var(--paper);padding:6px 12px;font-size:10px;font-weight:700;letter-spacing:.04em}.kicker::before{content:"";width:6px;height:6px;background:var(--coral);border-radius:50%}.home h1{font-size:clamp(76px,7.4vw,106px);line-height:1.06;letter-spacing:-.075em;font-weight:900;margin:23px 0 25px;position:relative;width:max-content}.title-row{display:block}.title-second{position:relative;z-index:0}.title-second::before{content:"";position:absolute;inset:55% -5px 0 0;background:var(--yellow);z-index:-1;transform:rotate(-3deg)}.hero-copy{font-size:15px;line-height:1.9;font-weight:600;letter-spacing:.03em}.hero-copy strong{display:inline-block;background:var(--ink);color:var(--yellow);padding:0 5px;transform:rotate(-2deg)}.game-facts{display:flex;gap:22px;margin:26px 0 18px;font-size:10px;letter-spacing:.04em}.game-facts span{display:flex;align-items:center;gap:6px}.game-facts svg{width:14px;height:14px}.game-facts b{font:900 15px Arial,sans-serif;margin-right:1px}.primary-button{display:flex;align-items:center;justify-content:center;gap:24px;width:100%;min-height:65px;border:2px solid var(--ink);background:var(--yellow);box-shadow:var(--shadow);font-size:22px;font-weight:800;letter-spacing:.08em;text-decoration:none;transition:transform .15s,box-shadow .15s}.primary-button svg{width:26px;height:26px;stroke-width:2.4}.primary-button:hover{transform:translate(-2px,-2px);box-shadow:7px 8px 0 var(--ink)}.primary-button:active{transform:translate(4px,5px);box-shadow:1px 1px 0 var(--ink)}.hero-start{max-width:370px;justify-content:space-between;padding:0 27px}.home-bottom{display:grid;grid-template-columns:repeat(3,1fr);margin-top:57px;border-top:1px solid var(--ink);border-bottom:1px solid var(--ink);padding:24px 0}.how-step{display:flex;gap:16px;align-items:center;padding:0 25px;border-right:1px solid #c5c5bb}.how-step:first-child{padding-left:0}.how-step:last-child{border-right:0}.step-number{font:900 27px "Arial Black",Arial,sans-serif;-webkit-text-stroke:1px var(--ink);color:transparent;letter-spacing:-1px}.how-step b{font-size:12px;display:block;margin-bottom:5px}.how-step p{font-size:10px;color:var(--muted);line-height:1.6}.site-footer{max-width:1184px;padding:26px 40px 25px;display:flex;justify-content:space-between;gap:15px;margin:auto;font-size:9px;letter-spacing:.06em;color:var(--muted)}.footer-tag{color:var(--ink);font-weight:700}.footer-tag span{font-size:14px;color:var(--coral);margin-left:8px}.game-help{text-align:center;font-size:10px;color:var(--muted);margin:23px 0 0;letter-spacing:.03em}.game-help span{display:inline-block;margin-left:7px}.reading{font-size:14px;line-height:1.9;overflow-wrap:anywhere;letter-spacing:.04em}
.result-screen{max-width:770px;padding:44px 28px 24px;margin:auto;animation:enter .45s ease both}.result-eyebrow{text-align:center;display:flex;align-items:center;justify-content:center;gap:14px;margin-bottom:23px}.result-eyebrow::before,.result-eyebrow::after{content:"";width:28px;height:1px;background:var(--ink)}.result-card{background:var(--white);border:2px solid var(--ink);box-shadow:7px 8px 0 var(--yellow),9px 10px 0 var(--ink);padding:28px 33px;position:relative;overflow:hidden}.result-card-top{display:flex;justify-content:space-between;align-items:center}.result-card-top b{font-size:16px;font-weight:800;letter-spacing:-.04em}.result-card-top span{font:700 9px ui-monospace,monospace;color:var(--muted);letter-spacing:.08em}.result-rank{text-align:center;margin-top:17px}.result-rank h1{display:inline;font-size:25px;font-weight:800;background:linear-gradient(transparent 57%,var(--yellow) 57%);padding:0 7px;line-height:1.5}.result-rank p{font-size:11px;line-height:1.7;margin-top:8px;color:var(--muted)}.result-actions{margin-top:30px}.share-button{background:var(--ink);color:var(--white);box-shadow:4px 5px 0 #b8bbab;min-height:58px;font-size:16px;letter-spacing:.03em}.share-button:hover{box-shadow:6px 7px 0 #b8bbab}.share-button svg{width:19px;height:19px}.share-secondary{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:15px 0 22px}.secondary-button{border:1px solid var(--ink);background:var(--paper);display:flex;align-items:center;justify-content:center;gap:9px;min-height:46px;font-size:11px;font-weight:700;text-decoration:none}.secondary-button:hover{background:#e9e9df}.secondary-button svg{width:16px;height:16px}.answer-review{border-top:1px solid var(--ink);margin-top:26px}.answer-review>summary{cursor:pointer;list-style:none;padding:20px 0;font-size:12px;font-weight:700;display:flex;justify-content:space-between;align-items:center}.answer-review>summary::-webkit-details-marker{display:none}.answer-review>summary::after{content:"＋";font-size:20px;font-weight:400}.answer-review[open]>summary::after{content:"−"}.review-item{padding:20px 0;border-top:1px dashed var(--line)}.review-meta{display:flex;align-items:center;gap:8px;font-size:10px;margin-bottom:9px;color:var(--muted)}.review-meta svg{width:15px;height:15px}.review-meta .correct{color:var(--green)}.review-meta .incorrect{color:#be4b37}.review-item h3{font-size:14px;font-weight:700;line-height:1.8;margin-bottom:6px}.review-item .reading{font-size:12px}.review-home{display:block;margin:15px auto 0;font-size:11px}
dialog{border:2px solid var(--ink);background:var(--paper);color:var(--ink);width:min(450px,calc(100vw - 36px));max-height:calc(100svh - 40px);padding:25px 28px 30px;box-shadow:7px 8px 0 var(--ink)}dialog::backdrop{background:#25252060;backdrop-filter:blur(4px)}.dialog-header{display:flex;justify-content:space-between;align-items:center}.icon-button{border:0;background:none;display:grid;place-items:center;width:40px;height:40px}.icon-button svg{width:20px;height:20px}dialog h2{font-size:34px;line-height:1.45;letter-spacing:-.03em;margin:10px 0 17px}dialog p{font-size:12px;line-height:1.9}.rule-example{background:var(--white);border:1px solid var(--ink);padding:15px 18px;margin:18px 0;font-weight:800;font-size:17px;line-height:1.8}.rule-example span{font-size:12px;font-weight:500}.rules-list{padding-left:17px;font-size:11px;line-height:1.9}.rules-list li{margin-bottom:7px}.keyboard-note{color:var(--muted);margin:17px 0 23px;font-size:10px}dialog .primary-button{min-height:54px;font-size:16px}.toast{position:fixed;bottom:max(24px,env(safe-area-inset-bottom));left:50%;transform:translate(-50%,20px);background:var(--ink);color:var(--white);font-size:12px;line-height:1.7;padding:13px 20px;z-index:30;box-shadow:3px 3px 0 var(--yellow);opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;width:max-content;max-width:calc(100vw - 32px);text-align:center}.toast.visible{opacity:1;transform:translate(-50%,0)}.noscript{padding:20px;text-align:center;background:var(--yellow)}
@keyframes enter{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
@media(min-width:1450px){.home{padding-top:80px}.hero{min-height:540px}.home-bottom{margin-top:70px}}
@media(max-width:1000px){.hero{gap:35px;grid-template-columns:1fr 1fr}.home{padding-top:55px}.home h1{font-size:82px}.how-step{padding:0 16px;gap:12px}}
@media(max-width:720px){.site-header{padding:15px 22px;height:73px;margin:0 18px}.brand{font-size:22px;gap:8px}.brand-caption{display:none}.header-actions{gap:15px}.text-button{font-size:10px}.sound-button{width:34px;height:34px}.sound-button svg{width:17px;height:17px}.home{padding:31px 27px 0}.hero{grid-template-columns:1fr;gap:0;max-width:440px;margin:auto;min-height:0}.kicker{font-size:9px;padding:5px 10px}.home h1{font-size:clamp(73px,17vw,100px);margin:18px 0 20px;line-height:1.04}.hero-copy{font-size:13px;line-height:1.9}.hero-copy br{display:none}.game-facts{margin:23px 0 15px;gap:18px;font-size:10px}.game-facts b{font-size:14px}.hero-start{max-width:none;min-height:62px;font-size:21px}.home-bottom{margin-top:28px;padding:20px 0;gap:15px;grid-template-columns:1fr;max-width:440px;margin-left:auto;margin-right:auto}.how-step{padding:0!important;border-right:0;gap:18px}.step-number{font-size:23px;width:33px}.how-step b{font-size:12px;margin-bottom:2px}.how-step p{font-size:10px}.site-footer{padding:23px 27px;max-width:494px;font-size:8px;line-height:1.8}#main{min-height:calc(100svh - 140px)}.game-help{font-size:9px;margin-top:19px}.game-help .desktop-hint{display:none}.reading{font-size:13px;line-height:1.9}.result-screen{padding:29px 22px 15px}.result-eyebrow{margin-bottom:20px}.result-card{padding:22px 20px}.result-card-top b{font-size:14px}.result-card-top span{font-size:8px}.result-rank h1{font-size:21px}.result-rank p{font-size:10px}.result-actions{margin-top:28px}.share-button{font-size:14px;min-height:57px;gap:13px}.share-secondary{gap:10px;margin-bottom:20px}.secondary-button{font-size:10px;gap:6px;min-height:46px}.result-screen .site-footer{padding-left:0;padding-right:0}}
@media(max-width:360px){.site-header{margin:0 12px;padding-left:9px;padding-right:9px}.home{padding-left:22px;padding-right:22px}.home h1{font-size:75px}.game-facts{gap:13px}.result-screen{padding-left:18px;padding-right:18px}.result-card{padding-left:15px;padding-right:15px}.result-rank h1{font-size:19px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}