/* PIKA NIHONGO: ink-dark study surfaces, gold focus, clear Japanese typography. */
:root{color-scheme:dark;--forest:#101b2d;--ink:#e9eef7;--green:#8be4ca;--lime:#f4d474;--paper:#0c1220;--line:#2c374b;--muted:#a9b6ca;--white:#152034;--accent:#f4d474;font-family:"Segoe UI",Inter,"Noto Sans",Arial,sans-serif;line-height:1.7}
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.detail-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;align-items:center}.detail-actions .bookmark-button{margin-left:auto}.label-list{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px}.label-chip{display:inline-block;border:1px solid #3a4b63;border-radius:7px;color:#cbd8ed;background:#1c2b42;padding:3px 9px;font-size:.875rem;line-height:1.8}.detail-meaning{font-size:1.375rem;font-weight:600;color:var(--accent);line-height:1.8;margin-bottom:10px}.detail-explanation{margin-top:18px!important}.quiet-button{font-size:.875rem;background:transparent;padding:7px 12px}.gloss-details{border-top:1px solid var(--line);margin:16px 0 0;padding-top:12px}.gloss-details summary{cursor:pointer;color:var(--green)}.gloss-details p{margin:12px 0}.kanji-chips{display:flex;flex-wrap:wrap;gap:9px;margin:18px 0}.kanji-chip{display:grid;place-items:center;min-width:58px;height:60px;border:1px solid #50627a;background:#20314a;border-radius:10px;font-size:1.8rem;text-decoration:none;color:var(--accent)}.kanji-chip:hover{background:#30425d}.collocation-row{padding:12px 0;border-top:1px solid var(--line)}.collocation-row strong,.collocation-row span{display:block}.collocation-row span{color:var(--muted);margin-top:4px}.sentence-card{position:relative;padding:20px 0 20px 40px;border-top:1px solid var(--line)}.sentence-card:first-of-type{border-top:0}.sentence-card .jp{font-size:1.25rem}.example-number{position:absolute;left:0;top:21px;font-size:.875rem;color:var(--accent);font-variant-numeric:tabular-nums}.translation{color:#bdcadf;font-size:1rem;line-height:1.8;margin-top:10px}.source-english{font-size:.9375rem;color:#b3c0d5;margin:10px 0}.sentence-card small{font-size:.875rem}.sentence-card a{font-size:.875rem;color:var(--green)}.relation-row{padding:14px 0;border-top:1px solid var(--line)}.relation-row:first-of-type{border-top:0}.relation-row strong,.relation-row>.word-link{font-size:1.25rem;font-weight:600;color:var(--accent)}.relation-row p{margin-top:10px}.academy-panel:has(>.mini-word){display:flex;flex-wrap:wrap;gap:16px}.academy-panel:has(>.mini-word)>h2,.academy-panel:has(>.mini-word)>p{flex-basis:100%}.mini-word{border:1px solid var(--line);border-radius:12px;padding:14px;min-width:190px;flex:1;background:#111c2f}.mini-word>.word-link{font-size:1.375rem;font-weight:600}.mini-word p:not(.reading){font-size:.9375rem;margin:8px 0}.mini-word .label-chip{margin-top:8px}.compact-word-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.compact-word-grid .mini-word{min-width:0}.kanji-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:12px;margin:24px 0}.kanji-tile{display:flex;flex-direction:column;text-align:center;align-items:center;padding:14px 8px;border:1px solid var(--line);background:var(--white);border-radius:12px;text-decoration:none;min-width:0}.kanji-tile strong{font-size:2.5rem;color:var(--ink)}.kanji-tile span{font-size:.9375rem;overflow-wrap:anywhere}.kanji-tile small{font-size:.875rem;color:var(--muted);margin-top:7px}.kanji-tile:hover{border-color:var(--accent)}.action-row{display:flex;flex-wrap:wrap;gap:12px}
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.academy-quiz{background:var(--white);border:1px solid #42536f;border-radius:20px;padding:28px;max-width:1020px;margin:24px auto}.academy-quiz-meta{display:flex;align-items:center;flex-wrap:wrap;gap:16px;margin-bottom:20px;font-size:.9375rem}.academy-quiz-meta>strong:first-child{margin-right:auto}.simulation-timer{color:var(--accent);font-size:1.125rem}.question-target{font-size:2rem;color:var(--accent);margin:26px 0 10px;border-bottom:2px solid #9d8950;display:inline-block}.question-sentence{font-size:clamp(1.25rem,2vw,1.75rem);margin:24px 0 20px;overflow-wrap:anywhere;line-height:2}.academy-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:28px 0}.academy-answer{display:flex;align-items:baseline;gap:14px;padding:18px;text-align:left;font-size:1.125rem;line-height:1.8;min-height:74px;overflow-wrap:anywhere;background:#1b2a43;border-color:#405674}.academy-answer .option-number{color:#afc3df;flex-shrink:0;border-color:var(--line);background:#223653}.academy-answer.correct{opacity:1;background:#163e35;color:#b4f8df;border-color:#67c2a4}.academy-answer.wrong{opacity:1;background:#4b2734;color:#ffd1ce;border-color:#d4898a}.typing-form{grid-column:1/-1;display:grid;gap:14px}.typing-form input{font-size:1.375rem;min-height:56px}.typing-form p{font-size:.9375rem}.typing-form .academy-answer{min-height:48px;text-align:center;justify-content:center}.academy-quiz-bottom{display:flex;justify-content:space-between;gap:16px;border-top:1px solid var(--line);padding-top:20px;margin-top:22px}.academy-feedback{margin-top:26px;padding-top:22px;border-top:2px solid #66bea3}.academy-feedback.wrong{border-color:#cf9191}.academy-feedback>h2{font-size:1.5rem;color:var(--green)}.academy-feedback.wrong>h2{color:#ffc1ba}.answer-key{font-size:1.25rem;font-weight:600;margin:8px 0;color:var(--accent)}.academy-feedback .academy-panel{background:#111d31}.option-explanation{padding:18px 0;border-top:1px solid var(--line)}.option-explanation.correct{border-color:#567969}.option-explanation.correct strong{color:var(--green)}.option-explanation p{margin:8px 0}.summary-score{display:block;font-size:3.5rem;color:var(--accent);line-height:1.4;font-variant-numeric:tabular-nums}.saved-explanation{padding:18px 0;border-top:1px solid var(--line)}.saved-explanation summary{cursor:pointer}.saved-explanation p{margin-top:14px}.error button{margin:12px 12px 0 0}
/* Retained daily targets, flashcards, progress and review debt. */
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@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}
/* The square crown icon keeps its ears and crown within the iOS safe area. */
.brand-mark{flex-shrink:0;overflow:hidden;border-color:#cfaa54}
.brand-mark img{display:block;width:100%;height:100%;object-fit:contain;border-radius:inherit}

.writing-layout{display:grid;grid-template-columns:minmax(220px,340px) minmax(0,1fr);gap:28px;margin:22px 0}.writing-board{width:100%;align-self:start;border:1px solid #576780;border-radius:14px;overflow:hidden;background:#101b2f}.writing-board svg{display:block;width:100%;aspect-ratio:1;user-select:none}.writing-board svg.is-practice{touch-action:none;cursor:crosshair}.writing-grid{fill:none;stroke:#8194af;stroke-width:.35;stroke-dasharray:2 2;opacity:.3}.writing-ghosts path,.writing-lines path,.writing-ink{fill:none;stroke-linecap:round;stroke-linejoin:round;stroke-width:3}.writing-ghosts path{stroke:#adb9ce}.writing-lines path{stroke:var(--accent)}.writing-lines path.completed{stroke:#81d7ba}.writing-lines path.hint{stroke:#f4d474;stroke-dasharray:2 3;opacity:.7}.writing-ink{stroke:#e7eefc;stroke-width:2.5}.writing-start{fill:#f47668;stroke:#fff0bd;stroke-width:.5}.writing-numbers text{fill:#f4d474;font-size:6px}.writing-counter{font-size:1.25rem;font-weight:650;color:var(--accent)}.writing-feedback{min-height:3.4em;margin:12px 0}.writing-tools .action-row{gap:9px}.writing-tools select{width:100%;max-width:220px}.writing-tools label{margin-top:18px}.writing-credit{font-size:.875rem}.writing-instruction{margin-top:16px}.kanji-writing button[aria-pressed=true]{border-color:var(--accent);background:#f4d47414}.kanji-writing [hidden]{display:none!important}
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