:root{--bg-primary: #1a1a2e;--bg-secondary: #16213e;--bg-card: #0f3460;--gold: #c9a86c;--gold-light: #e8d5a3;--vermillion: #e94560;--green: #4ecca3;--text-primary: #eee8d5;--text-secondary: #a89b8c;--text-muted: #6b6156;--border: #2a2a4a;--radius: 12px;--radius-sm: 8px;--nav-height: 64px;--backlink-height: 36px;--safe-bottom: env(safe-area-inset-bottom, 0px)}*{margin:0;padding:0;box-sizing:border-box}html{font-size:16px;-webkit-text-size-adjust:100%;scroll-padding-bottom:calc(var(--nav-height) + var(--backlink-height) + var(--safe-bottom) + 8px)}body{font-family:"Noto Serif JP",serif;background:var(--bg-primary);color:var(--text-primary);min-height:100dvh;overflow-x:hidden;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}input,select{font-family:inherit}#app{padding-bottom:calc(var(--nav-height) + var(--backlink-height) + var(--safe-bottom) + 8px);min-height:100dvh}.page{padding:16px;max-width:480px;margin:0 auto}.page-header{padding:8px 0 16px}.page-header h1{font-size:1.5rem;color:var(--gold)}#bottom-nav{position:fixed;bottom:0;left:0;right:0;height:calc(var(--nav-height) + var(--safe-bottom));padding-bottom:var(--safe-bottom);background:var(--bg-secondary);border-top:1px solid var(--border);display:flex;justify-content:space-around;align-items:center;z-index:100}#bottom-nav a{display:flex;flex-direction:column;align-items:center;gap:2px;padding:8px 12px;min-width:64px;min-height:48px;color:var(--text-muted);transition:color .2s}#bottom-nav a.active{color:var(--gold)}.nav-icon{font-size:1.3rem;line-height:1}.nav-label{font-size:.65rem;letter-spacing:.05em}.app-backlink-bar{position:fixed;inset-inline:0;bottom:calc(var(--nav-height) + var(--safe-bottom));z-index:90;display:flex;align-items:center;justify-content:center;min-height:var(--backlink-height);padding:6px 12px;background:color-mix(in srgb,var(--bg-secondary) 90%,transparent);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-top:1px solid var(--border);font-size:12px}.app-backlink-bar a{display:inline-flex;align-items:center;gap:.3em;padding:8px 14px;margin:-8px 0;color:var(--text-secondary);text-decoration:none;transition:color .12s ease}.app-backlink-bar a:hover{color:var(--gold)}.app-title{font-size:2.5rem;color:var(--gold);text-align:center;letter-spacing:.15em}.app-subtitle{text-align:center;color:var(--text-secondary);font-size:.85rem;margin-top:4px}.section-title{font-size:.9rem;color:var(--text-secondary);margin-bottom:12px;letter-spacing:.1em}.today-poem{margin:24px 0}.today-card{display:block;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;text-align:center}.today-number{display:block;font-size:.75rem;color:var(--text-muted);margin-bottom:8px}.today-kami{display:block;font-size:1.1rem;line-height:1.8;color:var(--text-primary)}.today-poet{display:block;font-size:.8rem;color:var(--gold);margin-top:12px}.mode-cards{margin:24px 0}.mode-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.mode-card{display:flex;flex-direction:column;align-items:center;gap:6px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);padding:16px 8px;text-align:center;min-height:48px;transition:border-color .2s}.mode-card:active{border-color:var(--gold)}.mode-icon{font-size:1.5rem}.mode-name{font-size:.85rem;color:var(--text-primary)}.mode-desc{font-size:.65rem;color:var(--text-muted)}.stats-summary{display:flex;justify-content:space-around;padding:16px 0}.stat{text-align:center}.stat-number{display:block;font-size:1.8rem;color:var(--gold)}.stat-label{font-size:.7rem;color:var(--text-secondary)}.progress-container{margin:16px 0}.progress-bar{height:8px;background:var(--bg-secondary);border-radius:4px;overflow:hidden;display:flex}.progress-mastered{background:var(--green);transition:width .3s}.progress-learning{background:var(--gold);transition:width .3s}.progress-labels{display:flex;justify-content:space-between;margin-top:6px;font-size:.7rem}.label-mastered{color:var(--green)}.label-learning{color:var(--gold)}.label-new{color:var(--text-muted)}.browse-filters{margin-bottom:16px}.search-input{width:100%;padding:10px 14px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);font-size:.9rem;outline:none;margin-bottom:12px}.search-input:focus{border-color:var(--gold)}.search-input::placeholder{color:var(--text-muted)}.filter-row{margin-bottom:8px}.filter-label{font-size:.75rem;color:var(--text-secondary);display:block;margin-bottom:6px}.filter-chips{display:flex;gap:6px;flex-wrap:wrap}.chip{padding:6px 12px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:20px;font-size:.75rem;color:var(--text-secondary);min-height:32px;transition:all .2s}.chip.active{background:var(--gold);color:var(--bg-primary);border-color:var(--gold)}.browse-count{font-size:.75rem;color:var(--text-muted);margin-bottom:8px}.poem-list{list-style:none}.poem-item{display:flex;align-items:center;gap:12px;padding:12px;border-bottom:1px solid var(--border);min-height:48px}.poem-number{font-size:.8rem;color:var(--text-muted);min-width:28px;text-align:right}.poem-text{flex:1;min-width:0}.poem-kami{display:block;font-size:.85rem;line-height:1.6;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.poem-poet{display:block;font-size:.7rem;color:var(--text-secondary)}.poem-status-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}.status-new .poem-status-dot{background:var(--text-muted)}.status-learning .poem-status-dot{background:var(--gold)}.status-mastered .poem-status-dot{background:var(--green)}.detail-header{display:flex;align-items:center;gap:16px}.back-link{font-size:.85rem;color:var(--gold);min-height:48px;display:flex;align-items:center}.poet-info{text-align:center;margin-bottom:20px}.poet-name{display:block;font-size:1.2rem;color:var(--gold)}.poet-kana{display:block;font-size:.75rem;color:var(--text-secondary);margin-top:2px}.detail-kana{margin:20px 0}.kana-row{padding:8px 0;border-bottom:1px solid var(--border)}.kana-label{font-size:.7rem;color:var(--text-muted);display:block;margin-bottom:4px}.kana-kimariji{color:var(--vermillion);font-weight:700}.kana-kanji{display:block;font-size:1.05rem;line-height:1.7;color:var(--text-primary)}.kana-text{display:block;font-size:.8rem;line-height:1.6;color:var(--text-secondary)}.detail-efuda{text-align:center;margin:20px 0}.efuda-img{width:60%;max-width:240px;height:auto;border-radius:var(--radius-sm);border:1px solid var(--border);box-shadow:0 4px 14px #00000059}.efuda-credit{display:block;font-size:.7rem;color:var(--text-muted);margin-top:8px}.detail-yurai{background:var(--bg-secondary);border-radius:var(--radius-sm);padding:16px;margin:16px 0}.yurai-block+.yurai-block{margin-top:14px}.yurai-label{display:block;font-size:.75rem;color:var(--gold);margin-bottom:6px}.yurai-text{font-size:.95rem;line-height:1.8;color:var(--text-primary)}.detail-nav{display:flex;justify-content:space-between;padding:16px 0}.nav-prev,.nav-next{color:var(--gold);font-size:.85rem;min-height:48px;display:flex;align-items:center;padding:0 8px}.quiz-progress{margin-bottom:20px;text-align:center;font-size:.8rem;color:var(--text-secondary)}.quiz-progress-bar{height:4px;background:var(--bg-secondary);border-radius:2px;margin-top:8px;overflow:hidden}.quiz-progress-fill{height:100%;background:var(--gold);transition:width .3s}.quiz-question{text-align:center;padding:24px 0}.quiz-label{font-size:.75rem;color:var(--text-muted);letter-spacing:.15em;display:block;margin-bottom:12px}.quiz-text{font-size:1.3rem;line-height:2}.quiz-practice .quiz-reading-fixed{position:sticky;top:0;z-index:10;background:var(--bg-primary);padding:12px 0 10px;margin-bottom:8px;border-bottom:1px solid var(--border)}.quiz-practice .quiz-progress{margin-bottom:12px}.quiz-reading{text-align:center}.quiz-reading-label{font-size:.7rem;color:var(--text-muted);letter-spacing:.15em;display:block;margin-bottom:8px}.quiz-reading-text{font-size:1.5rem;line-height:1.8;min-height:2.7rem;letter-spacing:.05em}.quiz-board-hint{font-size:.75rem;color:var(--text-secondary);text-align:center;margin-bottom:8px}.quiz-board .poem-item{width:100%;text-align:left;background:none;border:none;border-bottom:1px solid var(--border);font:inherit;color:inherit;cursor:pointer;transition:background .15s}.quiz-board .poem-item:active{background:var(--bg-secondary)}.quiz-board .poem-item.correct{background:#4ecca32e}.quiz-board .poem-item.incorrect{background:#e945602e}.quiz-board .poem-item:disabled{cursor:default}.explanation-result{text-align:center;color:var(--vermillion);font-size:.9rem;letter-spacing:.1em;margin-bottom:4px}.quiz-explanation #nextBtn{width:100%;margin-top:20px}.recall-section{text-align:center}.btn-reveal{padding:14px 32px;background:var(--bg-card);border:1px solid var(--gold);border-radius:var(--radius-sm);color:var(--gold);font-size:.9rem;min-height:48px}.recall-answer{padding:24px 0}.recall-text{font-size:1.2rem;line-height:2;margin-bottom:8px}.recall-poet{font-size:.8rem;color:var(--gold);margin-bottom:24px}.recall-buttons{display:flex;gap:12px}.btn-knew{flex:1;padding:14px;background:#4ecca326;border:1px solid var(--green);border-radius:var(--radius-sm);color:var(--green);font-size:.9rem;min-height:48px}.btn-forgot{flex:1;padding:14px;background:#e9456026;border:1px solid var(--vermillion);border-radius:var(--radius-sm);color:var(--vermillion);font-size:.9rem;min-height:48px}.quiz-setup{display:flex;flex-direction:column;gap:20px}.form-group label:first-child{display:block;font-size:.85rem;color:var(--gold);margin-bottom:10px}.radio-group{display:flex;flex-direction:column;gap:8px}.radio-label{display:flex;align-items:center;gap:10px;padding:10px 12px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-sm);font-size:.85rem;min-height:48px;cursor:pointer}.radio-label input[type=radio]{accent-color:var(--gold);width:18px;height:18px}.count-selector{display:flex;gap:8px}.count-btn{flex:1;padding:10px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-sm);font-size:.85rem;min-height:48px;transition:all .2s}.count-btn.active{background:var(--gold);color:var(--bg-primary);border-color:var(--gold)}.btn-primary{display:block;width:100%;padding:14px;background:var(--gold);color:var(--bg-primary);border-radius:var(--radius-sm);font-size:1rem;font-weight:700;min-height:48px;letter-spacing:.1em;transition:opacity .2s}.btn-primary:active{opacity:.8}.btn-secondary{display:block;width:100%;padding:14px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-sm);font-size:.9rem;min-height:48px;text-align:center}.btn-start{margin-top:8px}.quiz-empty{text-align:center;padding:48px 16px;color:var(--text-secondary)}.quiz-empty p{margin-bottom:12px}.results-summary{text-align:center;padding:24px 0}.results-score{display:flex;align-items:baseline;justify-content:center;gap:4px}.score-number{font-size:3rem;color:var(--gold)}.score-divider{font-size:1.5rem;color:var(--text-muted)}.score-total{font-size:1.5rem;color:var(--text-secondary)}.results-percentage{font-size:1.2rem;color:var(--text-secondary);margin-top:4px}.results-time{font-size:.8rem;color:var(--text-muted);margin-top:4px}.results-list{list-style:none;margin:16px 0}.result-item{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--border)}.result-mark{font-size:1.1rem;width:24px;text-align:center}.result-correct .result-mark{color:var(--green)}.result-incorrect .result-mark{color:var(--vermillion)}.result-poem{flex:1;display:flex;gap:8px;align-items:center}.result-number{font-size:.75rem;color:var(--text-muted);min-width:24px}.result-text{font-size:.85rem}.results-actions{display:flex;flex-direction:column;gap:10px;padding:16px 0}.settings-list{display:flex;flex-direction:column}.setting-item{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 0;border-bottom:1px solid var(--border)}.setting-info{flex:1}.setting-name{display:block;font-size:.9rem}.setting-desc{display:block;font-size:.7rem;color:var(--text-muted);margin-top:2px}.setting-select{padding:8px 12px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);font-size:.85rem;min-height:40px}.toggle{position:relative;display:inline-block;width:50px;height:28px;flex-shrink:0}.toggle input{opacity:0;width:0;height:0}.toggle-slider{position:absolute;top:0;right:0;bottom:0;left:0;background:var(--bg-secondary);border-radius:28px;border:1px solid var(--border);transition:background .2s;cursor:pointer}.toggle-slider:before{content:"";position:absolute;width:22px;height:22px;left:2px;top:2px;background:var(--text-secondary);border-radius:50%;transition:transform .2s}.toggle input:checked+.toggle-slider{background:var(--gold);border-color:var(--gold)}.toggle input:checked+.toggle-slider:before{transform:translate(22px);background:var(--bg-primary)}.btn-danger{padding:8px 16px;background:#e9456026;border:1px solid var(--vermillion);border-radius:var(--radius-sm);color:var(--vermillion);font-size:.8rem;min-height:40px;white-space:nowrap}.setting-item.danger{border-bottom-color:#e9456033}.app-info{text-align:center;padding:32px 0;color:var(--text-muted);font-size:.75rem}.app-version{margin-bottom:4px}.hidden{display:none!important}#app{animation:fadeIn .2s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px}.speak-btn{padding:6px 10px;min-width:44px;min-height:36px;background:var(--bg-secondary);color:var(--text-primary);border:1px solid var(--border);border-radius:var(--radius-sm);font-size:1rem;line-height:1;cursor:pointer}.speak-btn:active{opacity:.7}.kana-row{position:relative;padding-right:56px}.kana-row .speak-btn{position:absolute;right:0;top:50%;transform:translateY(-50%)}.kana-row.is-masked>*:not(.kana-mask){visibility:hidden}.kana-mask{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;min-height:48px;display:flex;align-items:center;justify-content:center;background:var(--bg-card);border:1px dashed var(--border);border-radius:var(--radius-sm);color:var(--text-secondary);font-family:inherit;font-size:.8rem;cursor:pointer}.kana-row:not(.is-masked) .kana-mask{display:none}.quiz-question .speak-btn{margin-top:12px}.recall-answer .speak-btn{margin:4px 0 12px}.quiz-reading-wait{color:var(--text-muted);font-size:.95rem}.audio-toast{position:fixed;left:50%;bottom:calc(var(--nav-height) + var(--backlink-height) + var(--safe-bottom) + 16px);transform:translate(-50%);z-index:200;max-width:min(90vw,420px);padding:10px 16px;background:var(--bg-secondary);border:1px solid var(--gold);border-radius:var(--radius-sm);color:var(--text-primary);font-size:.85rem;line-height:1.5;box-shadow:0 4px 16px #0006;animation:fadeIn .3s ease}