.home-top-bar{justify-content:flex-end;margin-bottom:-8px;display:flex}.home-gear{color:var(--ink-faint);cursor:pointer;align-items:center;padding:4px;transition:color .15s;display:flex}.home-gear:active{color:var(--ink)}.home-title{text-align:center;font-family:var(--font-jp);color:var(--ink);margin:24px 0 8px;font-size:2rem;font-weight:700}.home-subtitle{text-align:center;color:var(--ink-faint);margin-bottom:32px;font-size:.9rem}.home-streak{text-align:center;color:var(--gold);margin-bottom:8px;font-size:.85rem}.option-hint{color:var(--ink-faint);margin-top:6px;font-size:.7rem;line-height:1.4}.home-start-btn{margin-top:28px}.home-study-btn{margin-top:10px}.home-mode-hint{text-align:center;color:var(--ink-faint);max-width:320px;margin-top:10px;margin-left:auto;margin-right:auto;font-size:.72rem;line-height:1.4}.home-status{text-align:center;color:var(--ink-faint);margin-top:12px;font-size:.8rem}.dashboard-link{text-align:center;color:var(--gold);cursor:pointer;margin-top:16px;font-size:.9rem;text-decoration:none;display:block}.home-explainer{text-align:center;color:var(--ink-faint);max-width:320px;margin-top:28px;margin-left:auto;margin-right:auto;font-size:.72rem;line-height:1.5}.confirm-overlay{z-index:100;background:#0000004d;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.confirm-dialog{border-radius:var(--radius);text-align:center;background:#fff;width:100%;max-width:300px;padding:24px;box-shadow:0 4px 24px #00000026}.confirm-title{color:var(--ink);font-size:1rem;font-weight:600}.confirm-body{color:var(--ink-light);margin-top:8px;font-size:.85rem;line-height:1.5}.confirm-btn-row{gap:10px;margin-top:20px;display:flex}.confirm-btn{border-radius:var(--radius);border:2px solid var(--cream-dark);font-family:var(--font-ui);color:var(--ink);cursor:pointer;background:#fff;flex:1;padding:12px;font-size:.9rem;font-weight:600;transition:background .15s}.confirm-btn.cancel:active{background:var(--cream)}.confirm-btn.confirm{background:var(--ink);border-color:var(--ink);color:var(--cream)}.confirm-btn.confirm:active{background:#444;border-color:#444}.confirm-btn.confirm.danger{background:var(--red);border-color:var(--red)}.quiz-quit{cursor:pointer;color:var(--ink-faint);padding:4px 0;font-size:.85rem;line-height:1}.quiz-quit:active{color:var(--ink)}.quiz-header{color:var(--ink-faint);justify-content:space-between;align-items:center;margin-bottom:8px;font-size:.8rem;display:flex}.progress-bar-outer{background:var(--cream-dark);border-radius:3px;width:100%;height:6px;margin-bottom:16px;overflow:hidden}.progress-bar-inner{background:var(--gold);border-radius:3px;height:100%;transition:width .3s}.quiz-body{flex-direction:column;justify-content:center;align-items:center;min-height:calc(100vh - 120px);display:flex}.quiz-prompt-label{text-align:center;color:var(--ink-faint);margin-bottom:4px;font-size:.75rem}.quiz-prompt{text-align:center;font-family:var(--font-jp);justify-content:center;align-items:center;min-height:100px;margin-bottom:4px;font-size:6rem;font-weight:700;line-height:1.1;display:flex}.quiz-prompt.romaji-prompt{font-family:var(--font-ui);letter-spacing:.02em;font-size:3.5rem;font-weight:700}.quiz-script-label{text-align:center;color:var(--ink-faint);margin-bottom:32px;font-size:.75rem}.choices{grid-template-columns:1fr 1fr;gap:12px;width:100%;display:grid}.choice-btn{border:2px solid var(--cream-dark);border-radius:var(--radius);cursor:pointer;font-size:1.2rem;font-family:var(--font-ui);color:var(--ink);background:#fff;padding:18px 12px;transition:border-color .15s,background .15s}.choice-btn.kana-choice{font-family:var(--font-jp);font-size:1.8rem}.choice-btn:active{transform:scale(.97)}.choice-btn.correct{border-color:var(--green);background:var(--green-bg)}.choice-btn.wrong{border-color:var(--red);background:var(--red-bg)}.choice-btn.reveal-correct{border-color:var(--green);background:var(--green-bg);opacity:.7}.choice-btn:disabled{cursor:default}.study-prompt-label{text-align:center;color:var(--ink-faint);margin-bottom:16px;font-size:.75rem}.study-card{perspective:600px;cursor:pointer;margin-bottom:8px}.study-card-inner{width:100%;min-height:220px;transform-style:preserve-3d;transition:transform .45s;position:relative}.study-card.flipped .study-card-inner{transform:rotateY(180deg)}.study-card.flipped{cursor:pointer}.study-card-front,.study-card-back{backface-visibility:hidden;border-radius:var(--radius);box-shadow:var(--shadow);background:#fff;flex-direction:column;justify-content:center;align-items:center;padding:24px;display:flex;position:absolute;inset:0}.study-card-back{transform:rotateY(180deg)}.study-front-text{font-family:var(--font-jp);color:var(--ink);font-size:5rem;font-weight:700;line-height:1.1}.study-front-text.romaji-front{font-family:var(--font-ui);letter-spacing:.02em;font-size:3rem;font-weight:700}.study-back-prompt{font-family:var(--font-jp);color:var(--ink-faint);font-size:2.5rem;font-weight:700;line-height:1.1}.study-back-prompt.romaji-front{font-family:var(--font-ui);letter-spacing:.02em;font-size:1.8rem;font-weight:700}.study-back-divider{background:var(--cream-dark);border-radius:1px;width:40px;height:2px;margin:12px 0}.study-back-answer{font-family:var(--font-jp);color:var(--ink);font-size:3.5rem;font-weight:700;line-height:1.1}.study-back-answer.romaji-answer{font-family:var(--font-ui);letter-spacing:.02em;font-size:2.5rem}.study-script-label{text-align:center;color:var(--ink-faint);margin-bottom:24px;font-size:.75rem}.study-back-alt{color:var(--ink-faint);margin-top:10px;font-size:.8rem}.study-nav-row{gap:12px;display:flex}.study-nav-btn{border-radius:var(--radius);font-family:var(--font-ui);cursor:pointer;border:2px solid var(--cream-dark);color:var(--ink);background:#fff;flex:1;padding:16px;font-size:1rem;font-weight:600;transition:transform .1s,opacity .15s}.study-nav-btn:active:not(:disabled){transform:scale(.97)}.study-nav-btn:disabled{opacity:.4;cursor:default}.study-nav-btn.next{background:var(--ink);border-color:var(--ink);color:var(--cream)}.rc-screen{flex-direction:column;min-height:calc(100vh - 40px);display:flex}.rc-top{flex-direction:column;flex:1;justify-content:center;align-items:center;padding-bottom:16px;display:flex}.rc-title{text-align:center;font-family:var(--font-jp);color:var(--ink-light);margin-bottom:24px;font-size:1.3rem}.accuracy-ring-wrap{width:140px;height:140px;margin-bottom:16px;position:relative}.accuracy-ring-fill{animation:.8s ease-out forwards ringFill}@keyframes ringFill{0%{stroke-dashoffset:339.29px}}.accuracy-ring-text{justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.accuracy-ring-pct{font-size:2rem;font-weight:700}.rc-study-count{color:var(--gold);font-size:3.5rem;font-weight:700;line-height:1.1}.rc-study-label{color:var(--ink-faint);margin-bottom:16px;font-size:.9rem}.rc-score{text-align:center;color:var(--ink);margin-bottom:8px;font-size:1.1rem;font-weight:600}.rc-message{text-align:center;color:var(--ink-light);font-size:.95rem;line-height:1.5}.rc-missed-section{margin-bottom:24px}.rc-missed-title{color:var(--ink-light);margin-bottom:8px;font-size:.85rem;font-weight:600}.rc-missed-list{border-radius:var(--radius);box-shadow:var(--shadow);background:#fff;overflow:hidden}.rc-missed-item{border-bottom:1px solid var(--cream-dark);align-items:center;padding:10px 14px;font-size:.9rem;display:flex}.rc-missed-item:last-child{border-bottom:none}.rc-missed-kana{font-family:var(--font-jp);text-align:center;width:40px;font-size:1.3rem}.rc-missed-detail{color:var(--ink-light);flex:1;margin-left:12px}.rc-missed-detail .your-answer{color:var(--red)}.rc-missed-detail .correct-answer{color:var(--green);font-weight:600}.rc-btn-row{gap:12px;padding-bottom:8px;display:flex}.rc-btn-row .btn-primary,.rc-btn-row .btn-secondary{flex:1}.card-detail-overlay{z-index:100;background:#0000004d;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.card-detail{border-radius:var(--radius);text-align:center;background:#fff;width:100%;max-width:280px;padding:24px;box-shadow:0 4px 24px #00000026}.card-detail-kana{font-family:var(--font-jp);font-size:3rem}.card-detail-romaji{color:var(--ink-light);margin-bottom:16px;font-size:1.1rem}.card-detail-stats{text-align:left;color:var(--ink-light);font-size:.85rem;line-height:1.8}.card-detail-close{border-radius:var(--radius);background:var(--cream-dark);font-family:var(--font-ui);cursor:pointer;border:none;margin-top:16px;padding:8px 24px;font-size:.9rem}.dash-back{color:var(--gold);cursor:pointer;margin-bottom:16px;font-size:.9rem;display:inline-block}.dash-title{font-family:var(--font-jp);margin-bottom:4px;font-size:1.5rem;font-weight:700}.dash-streak{color:var(--ink-light);margin-bottom:20px;font-size:.85rem}.dash-direction-toggle{gap:8px;margin-bottom:20px;display:flex}.dash-direction-btn{border:2px solid var(--cream-dark);cursor:pointer;font-size:.8rem;font-family:var(--font-ui);color:var(--ink);background:#fff;border-radius:20px;padding:6px 14px}.dash-direction-btn.selected{border-color:var(--gold);background:#fdf8ec}.dash-explainer{color:var(--ink-faint);margin-bottom:16px;font-size:.75rem;line-height:1.5}.tab-bar{z-index:10;-webkit-overflow-scrolling:touch;background:var(--cream);scrollbar-width:none;gap:6px;margin:0 -20px;padding:8px 20px 10px;display:flex;position:sticky;top:0;overflow-x:auto}.tab-bar.stuck{padding-top:calc(env(safe-area-inset-top,0px) + 8px)}.tab-bar::-webkit-scrollbar{display:none}.tab-btn{border:1.5px solid var(--cream-dark);font-family:var(--font-ui);color:var(--ink-light);cursor:pointer;white-space:nowrap;background:#fff;border-radius:16px;flex-shrink:0;padding:5px 12px;font-size:.72rem;font-weight:500;transition:all .15s}.tab-btn.active{border-color:var(--gold);color:var(--ink);background:#fdf8ec;font-weight:600}.dash-section-title{text-transform:uppercase;letter-spacing:.05em;color:var(--ink-light);margin:16px 0 8px;font-size:.8rem;font-weight:600}.kana-grid{grid-template-columns:repeat(5,1fr);gap:6px;margin-bottom:16px;display:grid}.kana-cell{aspect-ratio:1;font-family:var(--font-jp);cursor:pointer;border-radius:6px;flex-direction:column;justify-content:center;align-items:center;font-size:1.2rem;transition:transform .1s;display:flex;position:relative}.kana-cell:active{transform:scale(.93)}.kana-cell .cell-romaji{font-family:var(--font-ui);color:var(--ink-faint);margin-top:1px;font-size:.55rem}.kana-cell.unseen{color:var(--ink-faint);background:#e8e4dc}.kana-cell.missed{background:var(--red-bg);color:var(--red)}.kana-cell.learning{background:var(--yellow-bg);color:var(--yellow)}.kana-cell.familiar{background:var(--green-bg);color:var(--green)}.kana-cell.mastered{color:var(--gold);background:#fdf5d6}.legend{color:var(--ink-light);flex-wrap:wrap;gap:12px;margin-bottom:20px;font-size:.75rem;display:flex}.legend-item{align-items:center;gap:4px;display:flex}.legend-dot{border-radius:3px;width:10px;height:10px}.session-list{border-radius:var(--radius);box-shadow:var(--shadow);background:#fff;margin-bottom:24px;overflow:hidden}.session-item{border-bottom:1px solid var(--cream-dark);justify-content:space-between;align-items:center;padding:10px 14px;font-size:.82rem;display:flex}.session-item:last-child{border-bottom:none}.session-date{color:var(--ink-light)}.session-info{color:var(--ink);font-weight:500}.session-accuracy{font-weight:600}.session-study{color:var(--ink-faint);font-size:.8rem;font-weight:500}.reset-btn{border:2px solid var(--red-bg);border-radius:var(--radius);width:100%;color:var(--red);font-family:var(--font-ui);cursor:pointer;background:#fff;margin-top:8px;padding:12px;font-size:.9rem;display:block}.empty-msg{text-align:center;color:var(--ink-faint);padding:20px;font-size:.85rem}.settings-back{color:var(--gold);cursor:pointer;margin-bottom:16px;font-size:.9rem;display:inline-block}.settings-title{font-family:var(--font-jp);margin-bottom:24px;font-size:1.5rem;font-weight:700}.settings-section{margin-bottom:24px}.settings-section-title{text-transform:uppercase;letter-spacing:.05em;color:var(--ink-light);margin-bottom:8px;font-size:.8rem;font-weight:600}.settings-card{border-radius:var(--radius);box-shadow:var(--shadow);background:#fff;padding:16px}.settings-app-name{font-family:var(--font-jp);font-size:1.2rem;font-weight:700}.settings-app-version{color:var(--ink-faint);margin-bottom:10px;font-size:.78rem}.settings-app-desc{color:var(--ink-light);font-size:.85rem;line-height:1.55}.settings-faq-q{color:var(--ink);margin-top:12px;font-size:.85rem;font-weight:600}.settings-faq-q:first-child{margin-top:0}.settings-faq-a{color:var(--ink-light);margin-top:4px;font-size:.82rem;line-height:1.55}.settings-privacy{color:var(--ink-light);font-size:.85rem;line-height:1.55}.settings-reset-desc{color:var(--ink-light);margin-bottom:12px;font-size:.82rem;line-height:1.5}.settings-card .reset-btn{margin-top:0}.onboarding{text-align:center;flex-direction:column;justify-content:center;align-items:center;min-height:calc(100vh - 40px);display:flex}.onboarding-dots{gap:8px;margin-bottom:48px;display:flex}.onboarding-dot{background:var(--cream-dark);border-radius:50%;width:8px;height:8px;transition:background .2s}.onboarding-dot.active{background:var(--gold)}.onboarding-kana{font-family:var(--font-jp);color:var(--ink);margin-bottom:24px;font-size:5rem;font-weight:700;line-height:1.1;animation:.35s ease-out fadeSlideIn}.onboarding-title{color:var(--ink);margin-bottom:12px;font-size:1.3rem;font-weight:700;animation:.35s ease-out 50ms both fadeSlideIn}.onboarding-body{color:var(--ink-light);max-width:320px;margin-bottom:48px;font-size:.9rem;line-height:1.6;animation:.35s ease-out .1s both fadeSlideIn}.onboarding-actions{align-items:center;gap:12px;width:100%;display:flex}.onboarding-actions .start-btn{margin-top:0}.onboarding-next{flex:1}.onboarding-skip{font-family:var(--font-ui);color:var(--ink-faint);cursor:pointer;white-space:nowrap;background:0 0;border:none;flex:0;padding:16px 20px;font-size:.9rem}.onboarding-skip:active{color:var(--ink)}@keyframes fadeSlideIn{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--cream:#f5f0e8;--cream-dark:#ebe4d8;--ink:#2c2c2c;--ink-light:#5a5a5a;--ink-faint:#9a9a9a;--gold:#b8960c;--gold-light:#d4b44a;--green:#4a8c5c;--green-bg:#d4edda;--red:#a84040;--red-bg:#f5d0d0;--yellow:#c49b20;--yellow-bg:#fff3cd;--gray:#ccc;--radius:10px;--shadow:0 2px 8px #00000014;--font-jp:"Noto Serif JP", serif;--font-ui:-apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif}html,body{background:var(--cream);height:100%;color:var(--ink);font-family:var(--font-ui);-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;overscroll-behavior:none}body{padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}#root{max-width:480px;min-height:100vh;margin:0 auto;padding:20px 16px}.fade-in{animation:.25s ease-out fadeIn}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.shake{animation:.4s ease-out shake}@keyframes shake{0%,to{transform:translate(0)}20%{transform:translate(-8px)}40%{transform:translate(8px)}60%{transform:translate(-4px)}80%{transform:translate(4px)}}.pop{animation:.3s ease-out pop}@keyframes pop{0%{transform:scale(1)}50%{transform:scale(1.08)}to{transform:scale(1)}}.btn-primary,.start-btn{border:2px solid var(--ink);border-radius:var(--radius);background:var(--ink);width:100%;color:var(--cream);font-family:var(--font-ui);cursor:pointer;text-align:center;padding:16px;font-size:1rem;font-weight:600;transition:background .15s,border-color .15s;display:block}.btn-primary:active,.start-btn:active{background:#444;border-color:#444}.btn-secondary{border:2px solid var(--cream-dark);border-radius:var(--radius);width:100%;font-family:var(--font-ui);color:var(--ink);cursor:pointer;text-align:center;background:#fff;padding:16px;font-size:1rem;font-weight:600;transition:border-color .15s,background .15s;display:block}.btn-secondary:active{background:var(--cream)}.option-group{margin-bottom:20px}.option-label{text-transform:uppercase;letter-spacing:.05em;color:var(--ink-light);margin-bottom:8px;font-size:.8rem;font-weight:600}.option-row{gap:8px;display:flex}.option-btn{border:2px solid var(--cream-dark);border-radius:var(--radius);font-family:var(--font-ui);color:var(--ink);cursor:pointer;text-align:center;background:#fff;flex:1;padding:10px 6px;font-size:.85rem;transition:border-color .15s,background .15s}.option-btn.selected{border-color:var(--gold);background:#fdf8ec}.option-btn:active{transform:scale(.97)}