:root{--ink:#152443;--muted:#53637a;--navy:#132442;--purple:#6452bd;--line:#dce2ee;--mint:#e5f6ee;--paper:#fff;--bg:#f4f6fb;--sand:#fff4de}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.7 -apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN",Meiryo,sans-serif}button,input,textarea,select{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button,.file-button{cursor:pointer}button:disabled{cursor:default;opacity:.55}a{color:#5141a1;text-underline-offset:4px}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #8164d9;outline-offset:4px}button{border:1px solid var(--line);border-radius:12px;padding:10px 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10px;color:var(--ink);font-size:14px}.quiet{background:transparent;font-size:13px}.practice-layout{display:grid;grid-template-columns:225px minmax(0,1fr)}.lesson-list{padding:20px 12px;background:#fafbfe;border-right:1px solid var(--line)}.lesson-list h3{font-size:12px;color:var(--muted);margin:0 10px 10px}.lesson-list button{display:block;width:100%;margin:5px 0;padding:11px 12px;font-size:13px;text-align:left;border-color:transparent;background:transparent;font-weight:500}.lesson-list button[aria-current=true]{background:#eeeafa;color:#4b3899;border-color:#d5c9f4}.lesson-list button span{display:block;font-size:11px;color:var(--muted)}.exercise{padding:25px 30px 30px;min-width:0}.mode-tabs{display:flex;flex-wrap:wrap;gap:7px;margin:0 0 24px}.mode-tabs button{font-size:12px;padding:7px 11px}.mode-tabs 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17px;text-align:left;font-weight:500;overflow-wrap:anywhere}.option.selected{border-color:var(--purple);background:#f1ecff}.answer-label{font-size:13px;font-weight:650;display:block;margin-top:15px}.answer{width:100%;min-height:100px;border:1px solid #b9c4d8;border-radius:12px;padding:14px;margin-top:7px;background:#fcfdff;color:var(--ink);resize:vertical;line-height:1.7;font-size:18px}.actions{display:flex;flex-wrap:wrap;gap:9px;margin-top:15px}.primary{background:var(--navy);color:#fff;border-color:var(--navy)}.primary:hover:not(:disabled){background:#253d65;color:white}.result{padding:17px 20px;border-radius:14px;background:var(--sand);border:1px solid #ecd6ac;margin-top:20px;overflow-wrap:anywhere}.result.correct{background:var(--mint);border-color:#b9ddcc}.result h4{margin:0 0 8px;font-size:18px}.result p{margin:8px 0}.model{font-size:20px;font-weight:650}.answer-reveal{border:1px solid 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var(--purple);outline-offset:3px}.notice{font-size:14px;color:#70491f;min-height:25px;margin:15px 0}footer{width:min(1120px,calc(100% - 40px));margin:30px auto;padding:25px 0;border-top:1px solid var(--line);color:var(--muted);font-size:12px}footer a{display:inline-block;margin-top:10px}footer span{float:right;margin-top:10px}[hidden]{display:none!important}@media(max-width:780px){.intro{grid-template-columns:1fr 1fr;padding:35px 0}.intro-art{height:230px;transform:scale(.9);transform-origin:center right}.orbit{left:28%;width:105px;height:105px;font-size:21px}.bubble{padding:6px 10px;font-size:12px}.languages{grid-template-columns:repeat(3,1fr)}.language{padding:12px}.language[aria-pressed=true]{padding:11px}.language .mark{font-size:23px;margin-bottom:0}.practice-layout{grid-template-columns:1fr}.lesson-list{order:2;border-right:0;border-top:1px solid var(--line);display:grid;grid-template-columns:1fr 1fr;gap:4px}.lesson-list h3{grid-column:1/-1}.exercise{padding:22px}.word-grid{padding:22px;gap:10px}.workspace-head{padding:23px}.view-nav{padding:0 23px}.filters{padding:15px 23px}.backup{display:block}.backup-actions{margin-top:18px}}@media(max-width:480px){main,footer{width:calc(100% - 24px)}.topbar{padding:14px 16px}.brand span{font-size:12px}.free-tag{font-size:10px;padding:4px 8px}.intro{grid-template-columns:1fr;padding:30px 8px 25px}.intro h1{font-size:37px}.intro-art{display:none}.intro-copy{font-size:14px}.language-section h2{font-size:15px;display:block}.language-section h2 span{display:block;margin-top:5px}.languages{gap:7px}.language{font-size:13px}.language small{font-size:10px}.workspace-head{padding:20px 17px}.workspace-head h2{font-size:21px}.summary{font-size:11px}.summary strong{font-size:20px}.view-nav{padding:0 17px;gap:20px}.view-nav button{font-size:13px}.filters{padding:15px 17px;flex-wrap:wrap;gap:8px}.filters label{max-width:none;min-width:120px}.filters .quiet{font-size:12px;padding:6px 10px;min-height:34px}.exercise{padding:18px}.exercise h3{font-size:21px}.prompt{font-size:17px}.mode-tabs{gap:5px}.mode-tabs button{font-size:11px;padding:7px 9px}.word-grid{grid-template-columns:1fr;padding:18px}.guide,.backup{padding:22px 20px}.progress-wrap{padding:20px 12px}.result{padding:15px}.scene svg{min-height:140px}.next-row button{padding:9px 12px}.star{font-size:11px}footer span{float:none;display:block}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}
/* v2: two subjects, school stages, and full-score tests */
.languages{grid-template-columns:1fr 1fr}.language{grid-template-columns:50px 1fr;padding:19px 22px;align-items:center}.language .mark{grid-row:1/3;margin:0}.language[aria-pressed=true]{padding:18px 21px}.language small{display:block}.filters{flex-wrap:wrap;align-items:end}.filters label{min-width:145px}.filters input[type=search]{min-height:44px;border:1px solid #cfd6e5;border-radius:10px;max-width:100%;width:100%;padding:7px 10px;font-size:14px}.range-note{font-size:12px;color:var(--muted);padding:10px 30px;margin:0;border-bottom:1px solid var(--line)}.scope-label{font-size:11px;color:var(--muted);margin-top:5px}.pagination{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:center;padding:18px;border-top:1px solid var(--line);font-size:12px}.pagination button{font-size:12px}.question-count{color:var(--muted);font-size:12px}.test-area{padding:28px 30px}.test-config{display:flex;gap:14px;flex-wrap:wrap;align-items:end;margin:20px 0}.test-config label{font-size:13px;display:grid;gap:5px;min-width:160px}.test-top{display:flex;justify-content:space-between;align-items:center;gap:10px;border-bottom:1px solid var(--line);padding-bottom:16px}.test-dots{display:flex;flex-wrap:wrap;gap:5px;margin:15px 0}.test-dots button{min-height:32px;min-width:32px;font-size:11px;padding:3px 6px;border-radius:8px}.test-dots button.answered{background:#e5f6ee;border-color:#99bcb0}.test-dots button[aria-current=true]{outline:2px solid var(--purple);outline-offset:1px}.test-score{font-size:48px;font-weight:800;color:var(--purple);margin:8px 0}.test-review{border:1px solid var(--line);border-radius:14px;padding:18px;margin:12px 0}.test-review.correct{border-left:5px solid #4d9e7f}.test-review p{margin:6px 0;overflow-wrap:anywhere}.test-review h4{margin:0 0 10px}.test-review .micro{margin-top:10px}.exam-note{padding:14px 18px;background:#fff4de;border-radius:12px;font-size:13px}.kanji-tile{font-family:serif;font-size:90px}.voice-tools{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:14px}.voice-tools select{width:auto;min-width:130px;font-size:12px}.voice-tools label{font-size:12px;color:var(--muted)}.progress-summary{font-size:13px;color:var(--muted)}.test-history{font-size:13px;padding:16px 0}.pronunciation-note{font-size:12px;color:var(--muted);margin:8px 0}.prompt{white-space:pre-line}.result.partial{background:#fff4de}.save-hint{font-size:12px;color:var(--muted)}@media(max-width:480px){.languages{grid-template-columns:1fr 1fr}.language{padding:14px 10px;grid-template-columns:35px 1fr}.language[aria-pressed=true]{padding:13px 9px}.language .mark{font-size:23px}.filters label{min-width:120px}.range-note{padding:10px 17px}.test-area{padding:20px 17px}.test-config label{min-width:120px;flex:1}.view-nav{gap:16px}.view-nav button{font-size:12px}.test-score{font-size:38px}.voice-tools button{font-size:12px;padding:8px 10px}.test-top button{font-size:12px}}