@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #F8F6F2;--surface: #FFFFFF;--border: #E2DDD8;--text: #2C2925;--sub: #7A7470;--accent: #8B6914;--accent-l: #C4956A;--green: #4A7C59;--red: #B45454;--r: 10px}body{font-family:Inter,Helvetica Neue,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}.app{display:flex;flex-direction:column;min-height:100vh}.app-header{display:flex;align-items:center;justify-content:space-between;padding:16px 32px;border-bottom:1px solid var(--border);background:var(--surface)}.app-brand{display:flex;flex-direction:column;gap:2px}.brand-name{font-size:18px;font-weight:700;color:var(--accent);letter-spacing:.02em}.brand-sub{font-size:11px;color:var(--sub)}.app-nav{display:flex;gap:8px}.nav-btn{padding:8px 20px;border:1.5px solid var(--border);border-radius:24px;background:transparent;color:var(--sub);font-size:13px;font-weight:500;font-family:inherit;cursor:pointer;transition:all .15s}.nav-btn:hover{border-color:var(--accent-l);color:var(--accent)}.nav-btn-active{background:var(--accent);color:#fff;border-color:var(--accent)}.nav-btn-active:hover{background:#6d520f;color:#fff}.app-main{flex:1;padding:40px 32px}.app-footer{border-top:1px solid var(--border);padding:24px 32px;background:var(--surface);display:flex;gap:48px;align-items:flex-start}.mode-container{max-width:720px;margin:0 auto}.quiz-stage{display:flex;flex-direction:column;align-items:center;gap:32px}.quiz-label{font-size:12px;color:var(--sub);font-weight:500;letter-spacing:.08em;text-transform:uppercase}.chord-name-xl{font-size:56px;font-weight:700;color:var(--text);letter-spacing:-.02em;line-height:1}.notes-question{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}.note-pill{display:inline-flex;align-items:center;justify-content:center;padding:5px 14px;border:1.5px solid var(--border);border-radius:24px;font-size:13px;font-weight:600;color:var(--text);background:var(--surface)}.note-pill-xl{font-size:20px;padding:10px 22px;min-width:56px}.piano-center{display:flex;justify-content:center;overflow-x:auto}.piano-with-play{display:flex;align-items:center;gap:20px}.piano-quiz-row{display:flex;align-items:center;gap:16px}.selection-count{font-size:13px;color:var(--sub)}.choice-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px;width:100%;max-width:600px}.choice-btn{padding:13px 10px;border:1.5px solid var(--border);border-radius:var(--r);background:var(--surface);font-size:16px;font-weight:700;font-family:inherit;cursor:pointer;transition:border-color .12s,background .12s,color .12s,box-shadow .12s;color:var(--text);text-align:center;box-shadow:0 1px 3px #0000000a}.choice-btn:hover:not(:disabled){border-color:var(--accent-l);background:#fdf8f3;box-shadow:0 2px 8px #8b69141f}.choice-btn:disabled{cursor:default}.choice-correct{background:#ebf3ed!important;border-color:var(--green)!important;color:var(--green)!important;box-shadow:none!important}.choice-wrong{background:#f8edee!important;border-color:var(--red)!important;color:var(--red)!important;box-shadow:none!important}.choice-dim{opacity:.38}.choice-result-label{font-size:16px;font-weight:700}.color-correct{color:var(--green)}.color-wrong{color:var(--red)}.result-banner{display:flex;align-items:center;gap:12px;padding:14px 22px;border-radius:var(--r);font-size:15px;font-weight:600;width:100%;max-width:540px}.result-perfect{background:#ebf3ed;color:var(--green);border:1.5px solid #C0DBC9}.result-partial{background:#fdf6ec;color:#8b6400;border:1.5px solid #E8D8A0}.result-wrong{background:#f8edee;color:var(--red);border:1.5px solid #DEBEBE}.result-emoji{font-size:20px}.result-answer{font-size:13px;font-weight:500;color:var(--sub);margin-left:auto}.nc-result{display:flex;flex-direction:column;align-items:center;gap:20px}.nc-actions{display:flex;align-items:center;gap:24px;margin-top:8px}.btn-primary{padding:10px 28px;border:none;border-radius:var(--r);background:var(--accent);color:#fff;font-size:14px;font-weight:600;font-family:inherit;cursor:pointer;transition:background .15s}.btn-primary:hover:not(:disabled){background:#6d520f}.btn-primary:disabled{opacity:.45;cursor:default}.btn-next{padding:10px 32px;border:1.5px solid var(--border);border-radius:var(--r);background:var(--surface);color:var(--text);font-size:14px;font-weight:600;font-family:inherit;cursor:pointer;transition:border-color .12s,background .12s}.btn-next:hover{border-color:var(--accent-l);background:#fdf8f3}.btn-play{padding:8px 18px;border:1.5px solid var(--accent-l);border-radius:24px;background:transparent;color:var(--accent);font-size:13px;font-weight:600;font-family:inherit;cursor:pointer;white-space:nowrap;transition:background .12s,color .12s}.btn-play:hover{background:var(--accent);color:#fff}.btn-play-sm{padding:5px 12px;font-size:12px}.btn-back{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border:1.5px solid var(--border);border-radius:24px;background:transparent;color:var(--sub);font-size:12px;font-family:inherit;cursor:pointer;transition:all .12s}.btn-back:hover{border-color:var(--accent-l);color:var(--accent)}.answer-appear{animation:fadeSlideIn .2s ease}@keyframes fadeSlideIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.dict-layout{display:flex;flex-direction:column;gap:28px;max-width:720px;margin:0 auto}.dict-detail{background:var(--surface);border:1.5px solid var(--border);border-radius:14px;padding:28px;display:flex;flex-direction:column;align-items:center;gap:16px;box-shadow:0 1px 4px #0000000d;align-self:center;min-width:380px}.dict-chord-name{font-size:40px;font-weight:700;color:var(--text);letter-spacing:-.01em;line-height:1}.dict-notes{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}.dict-section-label{font-size:13px;font-weight:600;color:var(--sub);margin:20px 0 12px}.dict-grid{display:grid;grid-template-columns:repeat(9,1fr);gap:6px}.dict-cell{padding:7px 4px;border:1.5px solid var(--border);border-radius:7px;background:var(--surface);font-size:11px;font-weight:600;font-family:inherit;cursor:pointer;text-align:center;color:var(--text);transition:all .1s}.dict-cell:hover{border-color:var(--accent-l);color:var(--accent)}.dict-cell-active{background:var(--accent);color:#fff;border-color:var(--accent)}.dict-cell-active:hover{background:#6d520f}.filter-row{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-bottom:12px}.chip{padding:6px 16px;border:1.5px solid var(--border);border-radius:24px;background:var(--surface);color:var(--sub);font-size:12px;font-weight:600;font-family:inherit;cursor:pointer;transition:all .12s}.chip:hover{border-color:var(--accent-l);color:var(--accent)}.chip-on{background:var(--accent);color:#fff;border-color:var(--accent)}.chip-on:hover{background:#6d520f}.stats-panel{display:flex;gap:32px}.stat-item{display:flex;flex-direction:column;gap:3px}.stat-label{font-size:10px;color:var(--sub);text-transform:uppercase;letter-spacing:.06em}.stat-value{font-size:22px;font-weight:700;color:var(--text)}.activity-wrap{display:flex;flex-direction:column;gap:8px}.activity-label{font-size:11px;color:var(--sub);margin-bottom:2px}.activity-legend{display:flex;align-items:center;gap:4px;margin-top:4px}.legend-label{font-size:10px;color:var(--sub)}