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rgba(100,116,139,.3);border-radius:8px;padding:8px 12px;color:#e2e8f0;font-size:.8rem;max-width:280px;pointer-events:none;box-shadow:0 4px 16px #0006;line-height:1.4}.help-screen{max-width:700px;margin:0 auto}.help-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.help-header h1{font-size:1.8rem;background:linear-gradient(135deg,#fbbf24,#f59e0b);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.help-close-btn{width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.1);background:#ffffff0f;color:#94a3b8;font-size:1.5rem;cursor:pointer;transition:all .2s}.help-close-btn:hover{background:#ffffff1f;color:#e2e8f0}.help-content{display:flex;flex-direction:column;gap:20px}.help-section h2{font-size:1.1rem;color:#fbbf24;margin-bottom:10px}.help-card{background:#1e293b80;border:1px solid rgba(71,85,105,.25);border-radius:12px;padding:14px 16px;margin-bottom:8px}.help-card h3{font-size:.95rem;margin-bottom:6px;color:#e2e8f0}.help-card p{font-size:.85rem;color:#94a3b8;line-height:1.5;margin-bottom:4px}.progress-screen{max-width:700px;margin:0 auto}.progress-header{display:flex;align-items:center;gap:16px;margin-bottom:24px}.progress-header h1{font-size:1.6rem;flex:1}.mastery-overview{display:flex;align-items:center;gap:24px;padding:20px;background:linear-gradient(135deg,#1e293b99,#162134b3);border:1px solid rgba(71,85,105,.3);border-radius:16px;margin-bottom:24px}.mastery-circle{width:100px;height:100px;border-radius:50%;background:conic-gradient(#22c55e calc(var(--mastery) * 1%),#4755694d calc(var(--mastery) * 1%));display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative;flex-shrink:0}.mastery-circle:before{content:"";position:absolute;top:8px;right:8px;bottom:8px;left:8px;border-radius:50%;background:#111b33}.mastery-pct{position:relative;font-size:1.4rem;font-weight:800;color:#22c55e}.mastery-label{position:relative;font-size:.65rem;color:#94a3b8;text-transform:uppercase;letter-spacing:1px}.mastery-stats{display:flex;flex-direction:column;gap:6px}.mastery-stat{font-size:.9rem;color:#94a3b8}.mastery-stat strong{color:#e2e8f0;margin-right:4px}.dimension-bars{margin-bottom:24px}.dimension-bars h2{font-size:1.1rem;margin-bottom:14px}.dim-bar-row{display:flex;align-items:center;gap:10px;margin-bottom:10px}.dim-label{width:130px;flex-shrink:0;font-size:.82rem;color:#94a3b8}.dim-bar{flex:1;height:14px;background:#47556933;border-radius:7px;overflow:hidden}.dim-bar-fill{height:100%;border-radius:7px;transition:width .5s ease;min-width:2px}.dim-pct{width:40px;text-align:right;font-size:.82rem;font-weight:600;color:#e2e8f0}.note-grid-section h2{font-size:1.1rem;margin-bottom:10px}.dim-tabs{display:flex;gap:6px;margin-bottom:14px;flex-wrap:wrap}.dim-tab{padding:6px 12px;border-radius:8px;border:1px solid rgba(71,85,105,.3);background:#ffffff0a;color:#94a3b8;font-size:.78rem;cursor:pointer;transition:all .15s}.dim-tab:hover{background:#ffffff14}.dim-tab.active{border-color:#fbbf24;color:#fbbf24;background:#fbbf2414}.clef-section{margin-bottom:16px}.clef-header{display:flex;align-items:center;gap:8px;margin-bottom:8px;padding-bottom:4px;border-bottom:1px solid rgba(148,163,184,.15)}.clef-symbol{font-size:1.4rem;line-height:1;color:#fbbf24}.clef-label{font-size:.8rem;font-weight:600;color:#94a3b8;text-transform:uppercase;letter-spacing:.05em}.note-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(52px,1fr));gap:6px;margin-bottom:8px}.note-cell{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:8px 4px;border-radius:8px;border:1px solid rgba(255,255,255,.08);cursor:pointer;transition:all .15s;min-height:44px}.note-cell:hover{transform:scale(1.08);box-shadow:0 4px 12px #0000004d}.note-cell-name{font-size:.82rem;font-weight:700;color:#fff}.note-cell-octave{font-size:.6rem;color:#fff9}.detail-card{background:#1e293b80;border:1px solid rgba(71,85,105,.3);border-radius:12px;padding:16px;animation:fadeIn .2s ease}.detail-card h3{font-size:1rem;margin-bottom:8px}.detail-status{font-size:.82rem;font-weight:700;margin-bottom:12px;padding:3px 10px;border-radius:6px;display:inline-block}.detail-status.mastered{color:#22c55e;background:#22c55e1a}.detail-status.learning{color:#f59e0b;background:#f59e0b1a}.detail-status.weak{color:#ef4444;background:#ef44441a}.detail-status.new{color:#64748b;background:#64748b1a}.detail-stats{display:flex;flex-direction:column;gap:8px}.detail-row{display:flex;justify-content:space-between;align-items:center;font-size:.85rem;color:#94a3b8}.detail-val{color:#e2e8f0;font-weight:600;display:flex;align-items:center;gap:8px}.mini-bar{width:60px;height:6px;background:#4755694d;border-radius:3px;overflow:hidden}.mini-bar-fill{height:100%;border-radius:3px}.fsrs-insights{display:flex;gap:16px;justify-content:center;margin:16px 0;flex-wrap:wrap}.insight-group{background:#1e293b80;border:1px solid rgba(71,85,105,.25);border-radius:12px;padding:12px 16px;text-align:center;min-width:140px}.insight-group h3{font-size:.75rem;color:#94a3b8;margin-bottom:8px;text-transform:uppercase;letter-spacing:.5px}.insight-note{display:inline-block;padding:3px 8px;border-radius:6px;font-size:.8rem;font-weight:600;margin:2px}.insight-note.improved{color:#22c55e;background:#22c55e1f}.insight-note.weak{color:#f59e0b;background:#f59e0b1f}@media(max-width:600px){.mastery-overview{flex-direction:column;text-align:center}.dim-label{width:90px;font-size:.72rem}.profile-grid{grid-template-columns:repeat(auto-fill,minmax(100px,1fr))}.mode-grid .mode-btn:nth-child(1){grid-column:span 6}.mode-grid .mode-btn:nth-child(2),.mode-grid .mode-btn:nth-child(3){grid-column:span 3}.mode-grid .mode-btn:nth-child(4),.mode-grid .mode-btn:nth-child(5),.mode-grid .mode-btn:nth-child(6){grid-column:span 2}}