@charset "UTF-8";
:root{font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:#253f34;background:#f7f8f2;font-synthesis:none;--green:#254b3c;--muted:#748176;--line:#e3e7dd;--cream:#fcfcf8;--accent:#dbe8ad}*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default;opacity:.7}a{color:inherit;text-underline-offset:3px}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #809a36;outline-offset:4px}[hidden]{display:none!important}.app-shell{min-height:100dvh;display:grid;grid-template-columns:236px minmax(0,1fr)}.sidebar{border-right:1px solid var(--line);padding:42px 24px;display:flex;flex-direction:column;background:#f1f3ea}.brand{display:flex;gap:12px;align-items:center;text-decoration:none;font-size:18px;letter-spacing:-.4px;font-weight:700;white-space:nowrap}.brand-mark{background:var(--green);color:#eef5dd;border-radius:15px;width:44px;height:48px;display:grid;place-items:center;font-size:30px;font-weight:400}.brand small{font-size:10px;display:block;letter-spacing:4px;margin-top:7px;color:#7c8575}.sidebar nav{display:grid;gap:10px;margin-top:62px}.nav-item{border:0;background:transparent;color:#71806f;font-size:14px;text-align:left;padding:15px 20px;border-radius:10px;display:flex;align-items:center;gap:15px;white-space:nowrap}.nav-item>span{font-size:21px;width:23px;text-align:center}.nav-item:hover{background:#e6ebdd}.nav-item.active{background:var(--green);color:#fff}.sidebar-note{margin-top:auto;padding:110px 16px 16px;color:#64735c}.plant{font-size:45px;color:#82945d}.sidebar-note p{font-size:15px;line-height:1.9}.sidebar-note small{font-size:8px;letter-spacing:1.2px}main{padding:0 44px;max-width:1560px;width:100%;margin:auto}.topbar{height:84px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);font-size:12px;color:var(--muted);letter-spacing:.4px}.local-badge{font-size:11px;display:flex;gap:8px;align-items:center}.local-badge i{width:6px;height:6px;border-radius:50%;background:#819452}.page{min-height:690px}.page-heading{margin:46px 0 30px;display:flex;justify-content:space-between;align-items:center;gap:20px}.eyebrow{font-size:9px;letter-spacing:1.7px;font-weight:650;margin:0 0 13px;color:#81906a}h1{font-size:29px;letter-spacing:-.6px;font-weight:600;margin:0 0 12px;line-height:1.4}h2{font-size:17px;font-weight:600;margin:0 0 14px}h3{font-size:14px;margin:0 0 10px}.muted{color:var(--muted);font-size:13px;line-height:1.85;margin:0}.primary-button,.outline-button{border-radius:8px;padding:12px 18px;font-size:13px;white-space:nowrap;line-height:1.4;min-height:44px}.primary-button{background:var(--green);color:#fff;border:1px solid var(--green)}.primary-button:hover{background:#356047}.outline-button{background:transparent;border:1px solid #dce1d4;color:#55664e}.outline-button:hover{background:#edf1e4}.compact{padding:9px 13px;font-size:11px}.practice-layout{display:grid;grid-template-columns:minmax(0,1fr) 274px;gap:24px}.session-strip{display:flex;gap:0;background:#fcfcf8;border:1px solid var(--line);border-radius:12px;margin-bottom:20px;padding:18px 6px}.session-strip>div{flex:1;text-align:center;border-right:1px solid var(--line)}.session-strip>div:last-child{border:0}.session-strip span{display:block;font-size:10px;color:var(--muted);margin-bottom:8px}.session-strip strong{font-size:22px;font-weight:500;font-variant-numeric:tabular-nums}.session-strip strong small{font-size:11px;color:var(--muted)}.question-card{background:var(--cream);border:1px solid var(--line);border-radius:16px;padding:24px 30px 18px;box-shadow:0 5px 12px #203b2503;transition:border-color .2s}.question-topline{display:flex;justify-content:space-between;align-items:center;font-size:10px;color:#8a9487}.pill{padding:6px 11px;background:#edf1e5;border-radius:20px;color:#647456}.kana-wrap{text-align:center;padding:20px 0 25px}.kana-wrap>p:first-child{font-family:"Hiragino Kaku Gothic ProN","Yu Gothic","Noto Sans CJK JP","Microsoft YaHei",sans-serif;font-size:110px;font-weight:400;line-height:1.45;letter-spacing:0;margin:0}.question-hint{font-size:11px;color:#84907d;margin:8px 0 0}.answer-row{display:flex;gap:10px}#answer{min-width:0;width:100%;background:#f7f8f2;border:1px solid #dce3d3;border-radius:8px;padding:14px 16px;font-size:16px;color:var(--green);outline-offset:2px}#answer::placeholder{color:#99a18f;font-size:13px}.answer-row .primary-button{min-width:93px}.answer-row .primary-button span{padding-left:15px;opacity:.65}.answer-footer{display:flex;justify-content:space-between;align-items:center;gap:10px;padding-top:2px;font-size:9px;color:#929b8d}.text-button{border:0;background:none;color:#6f8054;font-size:11px;padding:10px 0;min-height:38px}.text-button:hover{text-decoration:underline;text-underline-offset:4px}.feedback{min-height:35px;display:flex;align-items:center;font-size:12px;line-height:1.5;color:#55722b}.feedback.error{color:#a35c42}.question-card.correct{border-color:#99b56a}.question-card.wrong{border-color:#c78b70}.practice-footnote{text-align:center;font-size:10px;color:#8c9683;margin:20px 0}.practice-footnote span{margin-right:8px;font-size:15px}.practice-aside{display:grid;align-content:start;gap:20px}.info-card{background:var(--cream);border:1px solid var(--line);padding:24px;border-radius:13px}.green-card{background:#eaf0dc;border-color:#e4ead8;padding:25px 24px}.green-card .eyebrow{font-size:8px;letter-spacing:1px}.green-card p{font-size:11px;line-height:1.9;color:#788465;margin:0 0 18px}.green-card h2{font-size:16px;line-height:1.5;margin-top:6px}.small-badge{font-size:9px;color:#778653;border:1px solid #cbd7b5;border-radius:15px;padding:5px 10px;display:inline-block}.garden-art{height:110px;position:relative;width:175px;margin:12px auto 22px}.garden-art span{position:absolute;display:grid;place-items:center;border:1px solid #bdcfa0;background:#f4f6e8;border-radius:10px;font-size:38px;color:#527642;width:61px;height:70px;z-index:1;box-shadow:0 6px 10px #536e3510}.garden-art span:first-child{left:15px;top:22px;transform:rotate(-13deg);z-index:2}.garden-art span:nth-child(2){left:61px;top:4px;transform:rotate(7deg);background:#d4e2b8;z-index:3}.garden-art span:nth-child(3){right:0;top:35px;transform:rotate(20deg);font-size:30px}.garden-art i{position:absolute;bottom:0;left:18px;width:145px;height:12px;background:#d8e2c6;border-radius:50%}.card-title{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.card-title h2{font-size:13px;margin:0}.card-title .text-button{padding:0;min-height:25px}.scope-tags{display:flex;gap:7px;flex-wrap:wrap}.scope-tags span{font-size:10px;background:#f0f3e9;border-radius:5px;padding:7px 8px;color:#6b7959}.small-muted{font-size:11px;line-height:1.85;color:#87917f;margin:12px 0 0}.divider{height:1px;background:var(--line);margin:20px 0 13px}.sound-summary{display:flex;align-items:center;justify-content:space-between;font-size:11px;color:#6f7d64}.sound-summary .text-button{font-size:10px}footer{padding:32px 0 24px;margin-top:30px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:16px;font-size:9px;color:#8b9583;line-height:1.7}footer a{color:#76866a}.notice{border:1px solid #d8be88;background:#fff6e5;color:#7c602c;padding:12px 16px;border-radius:8px;font-size:13px;line-height:1.6}.settings-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:24px}.settings-card{padding:28px}.settings-card h2{margin-bottom:24px}.settings-card fieldset{border:0;padding:0;margin:0 0 26px}.settings-card legend{font-size:13px;font-weight:600;margin:0 0 13px}.settings-card legend small{font-size:10px;color:var(--muted);font-weight:400;margin-left:8px}.choice-row{display:flex;flex-wrap:wrap;gap:8px}.choice-row label{padding:12px 9px;border:1px solid var(--line);border-radius:7px;font-size:12px;display:flex;align-items:center;gap:6px;cursor:pointer}.choice-row label:has(input:checked){background:#edf3df;border-color:#9dad7f}.choice-row label span{color:#83956e;font-size:16px}.settings-card input[type=checkbox],.settings-card input[type=radio]{accent-color:var(--green);width:16px;height:16px;margin:0;flex-shrink:0}.mode-choice{display:flex;align-items:center;gap:12px;padding:12px 0;cursor:pointer}.mode-choice strong{font-size:13px;font-weight:500}.mode-choice small{display:block;font-size:11px;color:var(--muted);margin-top:5px;line-height:1.6}.sound-setting{display:flex;gap:12px;align-items:center;border-bottom:1px solid var(--line);padding:17px 0}.sound-setting label{font-size:13px;flex:1}.sound-setting .compact{padding:7px 10px}.volume-label{display:flex;justify-content:space-between;font-size:13px;margin:25px 0 15px}.volume-label output{color:#71805e}#volume{width:100%;accent-color:var(--green);min-height:24px}.kana-chart{display:grid;grid-template-columns:repeat(auto-fill,minmax(85px,1fr));gap:10px}.kana-tile{border:1px solid var(--line);background:var(--cream);border-radius:10px;padding:16px 8px;color:var(--green);display:grid;gap:8px;justify-items:center}.kana-tile:hover{background:#edf3df;border-color:#adbd8a}.kana-tile strong{font-size:30px;font-weight:400}.kana-tile small{font-size:12px;color:#82906f}.chart-detail{position:sticky;bottom:12px;padding:18px 22px;border:1px solid #cdd9b5;background:#f0f5e4;border-radius:10px;font-size:13px;box-shadow:0 3px 10px #263d1920}.history-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:24px}.history-metrics span{font-size:12px;color:var(--muted)}.history-metrics strong{display:block;font-size:34px;font-weight:500;margin-top:14px}.history-list h2{margin-bottom:8px}.weak-row{display:flex;align-items:center;padding:16px 0;border-bottom:1px solid var(--line);gap:20px}.weak-row:last-child{border:0}.weak-row strong{font-size:27px;min-width:72px;font-weight:400}.weak-row span{color:var(--muted);font-size:13px;flex:1}.weak-row small{font-size:11px;color:#9a6d57}.empty-records{padding:30px 0;color:var(--muted);font-size:13px;line-height:1.8}.privacy-note{font-size:11px;color:var(--muted);line-height:1.7;padding:10px 0}.danger{color:#a3644d}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.skip-link{position:fixed;top:-100px;left:10px;background:var(--green);color:white;z-index:20;padding:12px}.skip-link:focus{top:10px}
@media(min-width:1500px){main{padding:0 65px}.practice-layout{grid-template-columns:minmax(0,1fr) 310px}.question-card{padding:27px 45px}.kana-wrap{padding:24px 0 30px}.kana-wrap>p:first-child{font-size:130px}}
@media(max-width:1150px){.app-shell{grid-template-columns:190px minmax(0,1fr)}.sidebar{padding:32px 17px}.brand{font-size:14px;gap:9px}.brand-mark{width:36px;height:41px;font-size:25px}.brand small{font-size:9px;letter-spacing:3px}.nav-item{padding:14px 13px}main{padding:0 28px}.practice-layout{grid-template-columns:minmax(0,1fr) 235px;gap:18px}h1{font-size:25px}.question-card{padding:22px 22px 15px}.info-card{padding:20px}.answer-footer{flex-wrap:wrap;gap:0}.settings-grid{grid-template-columns:1fr}.page{min-height:670px}}
@media(max-width:900px){.app-shell{display:block}.sidebar{padding:17px 24px;border-right:0;border-bottom:1px solid var(--line);flex-direction:row;justify-content:space-between;align-items:center}.sidebar nav{display:flex;margin:0;gap:3px}.nav-item{font-size:11px;gap:6px;padding:11px}.nav-item>span{font-size:17px;width:18px}.sidebar-note{display:none}.topbar{height:62px}.page-heading{margin-top:30px}.practice-layout{grid-template-columns:minmax(0,1fr) 245px}.page{min-height:600px}}
@media(max-width:650px){.sidebar{padding:17px 20px 10px;display:block}.brand{font-size:17px;justify-content:center}.brand-mark{width:36px;height:39px}.brand small{font-size:8px;margin-top:5px}.sidebar nav{margin-top:17px;justify-content:center;gap:5px}.nav-item{justify-content:center;flex:1;padding:11px 4px;font-size:11px}.nav-item>span{display:none}main{padding:0 20px}.topbar{height:49px;font-size:10px}.local-badge{font-size:9px;letter-spacing:0}.page-heading{margin:27px 0 23px;gap:8px;align-items:flex-start}.page-heading .outline-button.compact{font-size:10px;padding:8px;min-height:36px}.eyebrow{font-size:7px;letter-spacing:1.2px;margin-bottom:9px}h1{font-size:23px;letter-spacing:-.7px}.page-heading .muted{font-size:11px}.page-heading>.primary-button,.page-heading>.outline-button{padding:10px;font-size:11px}.practice-layout{display:block}.practice-aside{grid-template-columns:1fr;margin-top:25px}.practice-aside .green-card{display:none}.practice-aside .info-card{padding:18px}.practice-aside .divider{margin:13px 0 5px}.practice-aside .small-muted{margin-top:9px}.session-strip{padding:14px 4px;margin-bottom:14px}.session-strip strong{font-size:20px}.session-strip span{font-size:9px}.question-card{padding:18px 18px 12px;border-radius:13px}.kana-wrap{padding:10px 0 20px}.kana-wrap>p:first-child{font-size:100px;line-height:1.4}.question-hint{font-size:10px;margin:0}.answer-row{gap:8px}#answer{padding:13px 12px}#answer::placeholder{font-size:11px}.answer-row .primary-button{min-width:77px;padding:10px}.answer-row .primary-button span{padding-left:8px}.answer-footer{justify-content:space-between;align-items:center;font-size:8px}.answer-footer .text-button{font-size:9px;min-height:36px}.feedback{font-size:11px;min-height:34px}.practice-footnote{font-size:9px;margin:14px 0}.page{min-height:0}.settings-card{padding:22px 18px}.settings-grid{gap:16px}.history-metrics{gap:9px}.history-metrics .info-card{padding:18px 12px}.history-metrics span{font-size:10px}.history-metrics strong{font-size:25px}.weak-row{gap:8px}.weak-row strong{min-width:60px}.weak-row small{font-size:10px}footer{flex-direction:column;align-items:center;text-align:center;gap:6px;margin-top:27px;padding:20px 0 calc(20px + env(safe-area-inset-bottom))}.kana-chart{grid-template-columns:repeat(4,1fr);gap:8px}.kana-tile{padding:14px 5px}.kana-tile strong{font-size:26px}.chart-detail{font-size:12px;padding:14px}.settings-card .muted{font-size:12px}}
@media(max-height:650px) and (max-width:650px){.topbar,.practice-footnote{display:none}.page-heading{margin:18px 0}.page-heading .eyebrow,.page-heading .muted{display:none}.page-heading h1{font-size:20px;margin:0}.session-strip{padding:9px 0}.session-strip span{margin-bottom:4px}.kana-wrap{padding:5px 0 12px}.kana-wrap>p:first-child{font-size:72px;line-height:1.2}.question-topline{font-size:9px}.question-hint{margin-top:6px}.practice-aside{margin-top:18px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}