.learningMenuRoot{display:block}
.learningMenu{position:relative;text-align:left;flex-shrink:0}
.learningToggle{display:flex;align-items:center;justify-content:center;gap:9px;min-height:44px;padding:10px 15px;box-sizing:border-box;border:1px solid #d8d1f2;border-radius:10px;background:#fff;color:#4530c4;box-shadow:0 2px 0 #e6e1f3;font:inherit;font-weight:600;line-height:1.4;white-space:nowrap;list-style:none;cursor:pointer}
.learningToggle::-webkit-details-marker{display:none}
.learningToggle:hover,.learningMenu[open]>.learningToggle{background:#eeebfc;border-color:#a89bdf}
.learningToggle>span{transition:transform .18s}
.learningMenu[open]>.learningToggle>span{transform:rotate(180deg)}
.learningPanel{position:absolute;top:calc(100% + 12px);right:0;z-index:60;width:min(560px,calc(100vw - 40px));max-height:calc(100dvh - 120px);overflow:auto;padding:22px;box-sizing:border-box;border:1px solid #dedbd3;border-radius:18px;background:#fff;box-shadow:0 16px 48px #25242126;white-space:normal;color:#282625}
.learningPanel .learningPrompt{margin:0 0 16px;font-size:15px;line-height:1.5;font-weight:600}
.learningChoices{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.learningPanel a.learningChoice{display:flex;position:relative;flex-direction:column;align-items:flex-start;justify-content:flex-start;gap:12px;min-height:218px;box-sizing:border-box;margin:0;padding:22px 20px 46px;border:1px solid #d8d1f2;border-radius:13px;background:#f3f0fe;box-shadow:none;color:#4530a4;text-align:left;text-decoration:none;white-space:normal;transition:background .18s,border-color .18s}
.learningPanel a.learningReading{border-color:#cbd8ce;background:#eff5ed;color:#315e52}
.learningPanel a.learningKanji:hover{background:#e9e3fb;border-color:#a89bdf;box-shadow:none;color:#4530a4}
.learningPanel a.learningReading:hover{background:#e2eddf;border-color:#91ac96;box-shadow:none;color:#315e52}
.learningPanel .learningIcon{display:flex;align-items:center;justify-content:center;width:42px;height:42px;font-family:serif;font-size:34px;font-weight:600;line-height:1}
.learningIcon svg{display:block;width:40px;height:40px}
.learningPanel strong{font-size:22px;line-height:1.35;font-weight:700;overflow-wrap:anywhere}
.learningPanel .learningDescription{font-size:13px;font-weight:400;line-height:1.8}
.learningPanel .learningArrow{position:absolute;right:20px;bottom:15px;font-size:24px;line-height:1}
.learningToggle:focus-visible,.learningPanel a.learningChoice:focus-visible{outline:3px solid #0499ae;outline-offset:3px}
.siteHeader:has(.learningMenu[open]),.site-header:has(.learningMenu[open]){z-index:70}
@media(max-width:900px){.headerMenu .learningToggle{width:100%;font-size:14px}.headerMenu .learningPanel{width:min(500px,calc(100vw - 70px));padding:16px}.headerMenu .learningMenu{position:static}.headerMenu .learningPanel{top:calc(100% + 10px);right:0;max-height:calc(100dvh - 200px)}}
@media(max-width:540px){.learningPanel{width:min(360px,calc(100vw - 32px));padding:16px}.learningChoices{grid-template-columns:1fr;gap:12px}.learningPanel a.learningChoice{min-height:148px;padding:18px 44px 18px 76px;gap:8px}.learningPanel .learningIcon{position:absolute;left:18px;top:21px}.learningPanel strong{font-size:21px}.learningPanel .learningArrow{right:17px;bottom:19px}.learningPanel .learningPrompt{font-size:14px;margin-bottom:12px}.site-header .learningToggle{font-size:13px;padding:9px 11px}}
@media(prefers-reduced-motion:reduce){.learningToggle>span,.learningPanel a.learningChoice{transition:none}}

@media(max-width:900px){.headerMenu .learningPanel{position:fixed;top:88px;right:16px;width:min(500px,calc(100vw - 32px));max-height:calc(100dvh - 110px)}}
@media(max-width:760px){.site-header .learningPanel{left:0;right:auto;width:min(500px,calc(100vw - 40px))}}