@import "https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=JetBrains+Mono:wght@500;700&display=swap";:root{--font-sans:"Plus Jakarta Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono:"JetBrains Mono", monospace;--bg-main:#0a0b0e;--bg-card:#12141dbf;--bg-card-hover:#1a1e2cd9;--bg-glass:#ffffff08;--bg-fretboard:linear-gradient(180deg, #1c1510 0%, #2b1f17 50%, #17110c 100%);--wood-grain:#231912;--border-subtle:#ffffff14;--border-active:#fff3;--border-gold:#eab30866;--primary:#8b5cf6;--primary-glow:#8b5cf659;--accent-gold:#f59e0b;--accent-gold-glow:#f59e0b4d;--accent-emerald:#10b981;--accent-emerald-glow:#10b98159;--accent-rose:#f43f5e;--accent-cyan:#06b6d4;--text-main:#f8fafc;--text-muted:#94a3b8;--text-dim:#64748b;--shadow-sm:0 2px 8px #0006;--shadow-md:0 8px 24px -4px #0009;--shadow-lg:0 16px 40px -8px #000c;--shadow-glow-purple:0 0 25px #8b5cf64d;--shadow-glow-gold:0 0 25px #f59e0b4d;--transition-fast:.15s cubic-bezier(.4, 0, .2, 1);--transition-normal:.25s cubic-bezier(.4, 0, .2, 1);--transition-bounce:.4s cubic-bezier(.34, 1.56, .64, 1);font-family:var(--font-sans);--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;color:var(--text-main);background-color:var(--bg-main);text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;margin:0;padding:0}html{width:100%;max-width:100%;overflow-x:hidden}body{width:100%;max-width:100%;min-height:100dvh;padding-bottom:env(safe-area-inset-bottom,0px);background:radial-gradient(circle at 50% 0,#1e1b4b 0%,#0b0c12 50%,#050608 100%) fixed;line-height:1.5;overflow-x:hidden}#root{flex-direction:column;width:100%;max-width:100%;min-height:100dvh;display:flex;overflow-x:hidden}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:#090a0f}::-webkit-scrollbar-thumb{background:#272a38;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#3b3f54}::selection{background:var(--primary);color:#fff}button{cursor:pointer;transition:all var(--transition-fast);touch-action:manipulation;background:0 0;border:none;outline:none;font-family:inherit}button:focus-visible{outline:2px solid var(--primary);outline-offset:2px}img,svg{max-width:100%;height:auto;display:block}.app-wrapper{flex-direction:column;gap:1.5rem;width:100%;max-width:1280px;margin:0 auto;padding:1.5rem 1rem 3rem;display:flex}.app-header{background:var(--bg-card);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border-subtle);box-shadow:var(--shadow-md);border-radius:1.25rem;flex-direction:column;gap:1.25rem;padding:1.25rem 1.75rem;display:flex}.header-top{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;display:flex}.brand{align-items:center;gap:.85rem;display:flex}.brand-icon-wrapper{background:linear-gradient(135deg,#4f46e5,#7c3aed);border-radius:12px;justify-content:center;align-items:center;width:48px;height:48px;display:flex;position:relative;box-shadow:0 4px 16px #7c3aed66}.brand-guitar-emoji{filter:drop-shadow(0 2px 4px #0000004d);font-size:1.75rem}.brand-glow{pointer-events:none;background:radial-gradient(circle,#fff6 0%,#0000 70%);border-radius:12px;position:absolute;inset:0}.brand-title{letter-spacing:-.03em;color:#fff;font-size:1.65rem;font-weight:800;line-height:1.1}.brand-accent{background:linear-gradient(90deg,#ec4899,#f59e0b);-webkit-text-fill-color:transparent;-webkit-background-clip:text}.brand-subtitle{color:var(--text-muted);font-size:.85rem;font-weight:500}.header-actions{flex-wrap:wrap;align-items:center;gap:.75rem;display:flex}.notation-pill{border:1px solid var(--border-subtle);background:#00000059;border-radius:9999px;align-items:center;gap:.25rem;padding:.25rem;display:flex}.notation-btn{color:var(--text-muted);border-radius:9999px;align-items:center;gap:.4rem;padding:.4rem .85rem;font-size:.8rem;font-weight:600;display:flex}.notation-btn.active{background:var(--primary);color:#fff;box-shadow:0 2px 8px var(--primary-glow)}.notation-btn:not(.active):hover{color:var(--text-main);background:#ffffff0d}.action-icon-btn{border:1px solid var(--border-subtle);color:var(--text-main);background:#ffffff0a;border-radius:.75rem;align-items:center;gap:.5rem;padding:.55rem .95rem;font-size:.85rem;font-weight:600;display:flex}.action-icon-btn:hover{border-color:var(--border-active);background:#ffffff17;transform:translateY(-1px)}.action-icon-btn.muted{color:var(--accent-rose);border-color:#f43f5e4d}.action-icon-btn.sound-on{color:var(--accent-emerald)}.helper-btn{border-color:var(--border-gold);color:#fbbf24;background:linear-gradient(135deg,#f59e0b1a,#d9770626)}.helper-btn:hover{box-shadow:var(--shadow-glow-gold);background:linear-gradient(135deg,#f59e0b33,#d9770640)}.mode-navbar{border-top:1px solid var(--border-subtle);align-items:center;gap:.6rem;padding-top:.9rem;display:flex;overflow-x:auto}.mode-tab{color:var(--text-muted);white-space:nowrap;background:#ffffff05;border:1px solid #0000;border-radius:.75rem;align-items:center;gap:.6rem;padding:.65rem 1.15rem;font-size:.9rem;font-weight:600;display:flex}.mode-tab:hover{color:var(--text-main);background:#ffffff0f}.mode-tab.active{color:#fff;background:linear-gradient(135deg,#8b5cf633,#7c3aed59);border-color:#8b5cf680;box-shadow:0 4px 14px #8b5cf640}.tab-badge{text-transform:uppercase;letter-spacing:.05em;color:#e9d5ff;background:#8b5cf666;border-radius:4px;padding:.15rem .45rem;font-size:.65rem;font-weight:700}.chord-new-badge{color:#fef08a;background:#f59e0b66}.streak-badge{color:#f59e0b;background:#f59e0b33;border-radius:6px;padding:.15rem .45rem;font-size:.8rem;font-weight:700}.practice-view-layout{flex-direction:column;gap:1.5rem;display:flex}.guitar-fretboard-container{flex-direction:column;gap:.85rem;display:flex}.fretboard-controls{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.75rem;padding:0 .5rem;display:flex}.order-toggle{align-items:center;gap:.5rem;font-size:.85rem;display:flex}.order-label{color:var(--text-dim);font-weight:500}.order-btn{color:var(--text-muted);border:1px solid var(--border-subtle);background:#ffffff0a;border-radius:.5rem;padding:.35rem .75rem;font-size:.8rem;font-weight:600}.order-btn.active{color:#fbbf24;border-color:var(--border-gold);background:#f59e0b26}.fretboard-legend{color:var(--text-dim);align-items:center;gap:1rem;font-size:.8rem;display:flex}.legend-item{align-items:center;gap:.35rem;display:flex}.legend-dot{border-radius:50%;width:8px;height:8px}.legend-dot.bronze{background:#d4af37;box-shadow:0 0 6px #d4af3799}.legend-dot.steel{background:#e2e8f0;box-shadow:0 0 6px #e2e8f099}.guitar-fretboard-card{background:var(--bg-fretboard);box-shadow:var(--shadow-lg), inset 0 0 40px #000c;border:2px solid #3d2a1d;border-radius:1.25rem;min-height:480px;display:flex;position:relative;overflow:hidden}.guitar-headstock{background:linear-gradient(90deg,#110d0a,#20150e);border-right:3px solid #140d08;flex-shrink:0;justify-content:center;align-items:center;width:90px;display:flex;position:relative}.headstock-body{flex-direction:column;align-items:center;gap:4px;display:flex;transform:rotate(-90deg)}.headstock-logo{letter-spacing:.1em;color:#dfb76c;text-shadow:0 2px 4px #000c;white-space:nowrap;font-family:Times New Roman,serif;font-size:.95rem;font-weight:700}.headstock-truss-cover{background:#000;border:1px solid #333;border-radius:2px;width:14px;height:18px}.guitar-nut{z-index:2;background:linear-gradient(90deg,#d8d3c5,#f5f2eb,#b8b19e);border-left:2px solid #555;border-right:3px solid #000;flex-shrink:0;justify-content:center;align-items:center;width:22px;display:flex;position:relative;box-shadow:2px 0 8px #0009}.nut-label{display:none}.fretboard-board{flex-direction:column;flex:1;padding:1.25rem 1rem;display:flex;position:relative}.fret-lines-grid{pointer-events:none;z-index:1;grid-template-columns:repeat(5,1fr);display:grid;position:absolute;inset:0}.fret-column{border-right:3px solid #8b929e;flex-direction:column;justify-content:flex-end;align-items:center;padding-bottom:.5rem;display:flex;position:relative;box-shadow:1px 0 3px #000000b3,inset -1px 0 1px #fff}.fret-num{color:#ffffff2e;letter-spacing:.05em;font-size:.65rem;font-weight:700}.fret-inlay.single-dot{opacity:.75;background:radial-gradient(circle,#fff 0%,#d1d5db 70%,#9ca3af 100%);border-radius:50%;width:14px;height:14px;position:absolute;top:50%;right:50%;transform:translate(50%,-50%);box-shadow:0 0 6px #fff9}.strings-track-list{z-index:3;flex-direction:column;justify-content:space-around;gap:.75rem;height:100%;display:flex;position:relative}.string-lane{transition:all var(--transition-fast);background:#0003;border-radius:.75rem;align-items:center;gap:1.25rem;padding:.5rem;display:flex;position:relative}.string-lane:hover{background:#00000059}.string-lane.drag-over{outline:2px dashed var(--primary);background:#8b5cf633}.string-lane.drop-error{outline:2px solid var(--accent-rose);background:#f43f5e40;animation:.5s cubic-bezier(.36,.07,.19,.97) both shake}.string-lane.is-solved{background:#10b9811a}@keyframes shake{10%,90%{transform:translate(-2px)}20%,80%{transform:translate(3px)}30%,50%,70%{transform:translate(-4px)}40%,60%{transform:translate(4px)}}.string-number-tag{flex-direction:column;min-width:68px;display:flex}.num-pill{color:#fff;font-size:1.15rem;font-weight:800;font-family:var(--font-mono)}.string-subinfo{color:var(--text-dim);white-space:nowrap;font-size:.65rem}.drop-slot{min-width:100px;height:52px;transition:all var(--transition-normal);-webkit-user-select:none;user-select:none;border-radius:.75rem;justify-content:center;align-items:center;padding:.35rem .75rem;display:flex}.drop-slot.slot-empty{background:#0006;border:2px dashed #fff3}.drop-slot.slot-waiting-click{border-color:var(--accent-gold);cursor:pointer;background:#f59e0b26;animation:1.5s infinite pulse-border}.drop-slot.slot-hovered{border-color:var(--primary);background:#8b5cf64d;transform:scale(1.05)}.empty-slot-placeholder{color:var(--text-dim);align-items:center;gap:.35rem;font-size:.75rem;font-weight:600;display:flex}.slot-plus-icon{color:var(--text-muted);font-size:1rem}.drop-slot.slot-filled{box-shadow:0 4px 12px var(--accent-emerald-glow);cursor:pointer;background:linear-gradient(135deg,#059669,#10b981);border:2px solid #34d399;animation:.3s cubic-bezier(.34,1.56,.64,1) popIn}.placed-badge-content{color:#fff;align-items:baseline;gap:.35rem;display:flex}.badge-note-main{font-size:1.45rem;font-weight:800;font-family:var(--font-mono);line-height:1}.badge-octave{opacity:.85;font-size:.8rem;font-weight:700}.badge-check-icon{color:#d1fae5;margin-left:.25rem}@keyframes popIn{0%{opacity:0;transform:scale(.6)}to{opacity:1;transform:scale(1)}}@keyframes pulse-border{0%,to{border-color:#f59e0b66}50%{border-color:#f59e0b}}.string-visual-wrapper{cursor:pointer;flex:1;align-items:center;padding:.5rem 0;display:flex}.guitar-string-line{border-radius:9999px;width:100%;transition:transform 50ms;position:relative}.guitar-string-line.vibrating{animation:.12s infinite string-vibrate}@keyframes string-vibrate{0%{transform:translateY(0)scaleY(1)}25%{transform:translateY(-3px)scaleY(1.4)}50%{transform:translateY(0)scaleY(1)}75%{transform:translateY(3px)scaleY(1.4)}to{transform:translateY(0)scaleY(1)}}.wound-ridges-overlay{background-image:repeating-linear-gradient(90deg,#0006 0 1px,#0000 1px 3px);border-radius:9999px;position:absolute;inset:0}.string-audio-trigger{justify-content:flex-end;min-width:110px;display:flex}.pluck-btn{border:1px solid var(--border-subtle);color:var(--text-muted);font-size:.75rem;font-weight:600;font-family:var(--font-mono);background:#ffffff0d;border-radius:.5rem;align-items:center;gap:.4rem;padding:.4rem .75rem;display:flex}.pluck-btn:hover{color:#fff;border-color:var(--border-active);background:#ffffff1f}.pluck-btn.btn-plucked{background:var(--primary);color:#fff;box-shadow:0 0 12px var(--primary-glow);transform:scale(1.05)}.badge-deck-container{background:var(--bg-card);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid var(--border-subtle);box-shadow:var(--shadow-md);border-radius:1.25rem;flex-direction:column;gap:1.25rem;padding:1.5rem;display:flex}.deck-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;display:flex}.deck-title-group{align-items:center;gap:.75rem;display:flex}.deck-title-icon{width:40px;height:40px;color:var(--primary);background:#8b5cf626;border:1px solid #8b5cf64d;border-radius:10px;justify-content:center;align-items:center;display:flex}.pulse-icon{animation:2s infinite pulse-scale}@keyframes pulse-scale{0%,to{transform:scale(1)}50%{transform:scale(1.15)}}.deck-title{color:#fff;font-size:1.15rem;font-weight:700}.deck-subtitle{color:var(--text-muted);font-size:.8rem}.progress-card{border:1px solid var(--border-subtle);background:#0000004d;border-radius:.75rem;flex-direction:column;gap:.35rem;min-width:200px;padding:.5rem .85rem;display:flex}.progress-labels{color:var(--text-muted);justify-content:space-between;font-size:.75rem;display:flex}.progress-percent{color:var(--accent-emerald);font-weight:700}.progress-bar-track{background:#ffffff1a;border-radius:9999px;width:100%;height:6px;overflow:hidden}.progress-bar-fill{background:linear-gradient(90deg,#10b981,#34d399);border-radius:9999px;height:100%;transition:width .4s}.badges-grid{grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:.85rem;display:grid}.note-chip{border:1.5px solid var(--border-subtle);cursor:grab;-webkit-user-select:none;user-select:none;touch-action:none;transition:all var(--transition-normal);box-shadow:var(--shadow-sm);background:linear-gradient(135deg,#1e2232e6,#12141df2);border-radius:1rem;flex-direction:column;justify-content:center;align-items:center;gap:.4rem;min-height:84px;padding:1.1rem .85rem;display:flex;position:relative}.note-chip:hover:not(.is-used){border-color:var(--primary);box-shadow:0 8px 20px var(--primary-glow);transform:translateY(-4px)}.note-chip:active:not(.is-used){cursor:grabbing}.note-chip.is-dragging{opacity:.4;transform:scale(.95)}.note-chip.is-selected{border-color:var(--accent-gold);box-shadow:0 0 20px var(--accent-gold-glow);background:linear-gradient(135deg,#f59e0b33,#d9770640);transform:translateY(-4px)scale(1.03)}.note-chip.is-used{opacity:.3;cursor:not-allowed;border-style:dashed}.chip-drag-handle{color:var(--text-dim);letter-spacing:2px;font-size:.85rem;line-height:.5}.chip-note-name{font-size:2.1rem;font-weight:800;font-family:var(--font-mono);color:#fff;line-height:1}.chip-wound .chip-note-name{color:#fbbf24}.chip-plain .chip-note-name{color:#f1f5f9}.chip-used-check{color:var(--accent-emerald);position:absolute;top:8px;right:8px}.completion-banner{background:linear-gradient(135deg,#10b98126,#05966940);border:1.5px solid #10b98166;border-radius:1rem;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1.25rem;padding:1.25rem 1.75rem;animation:.4s cubic-bezier(.34,1.56,.64,1) popIn;display:flex}.completion-icon-wrapper{width:54px;height:54px;color:var(--accent-emerald);background:#10b98133;border-radius:50%;justify-content:center;align-items:center;display:flex}.sparkle-anim{animation:3s linear infinite spin-pulse}@keyframes spin-pulse{0%{transform:rotate(0)scale(1)}50%{transform:rotate(180deg)scale(1.15)}to{transform:rotate(360deg)scale(1)}}.completion-text h4{color:#fff;font-size:1.25rem;font-weight:800}.completion-text p{color:#a7f3d0;font-size:.85rem}.deck-actions-footer{border-top:1px solid var(--border-subtle);flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:.75rem;padding-top:1rem;display:flex}.deck-action-btn{border:1px solid var(--border-subtle);color:var(--text-main);background:#ffffff0a;border-radius:.65rem;align-items:center;gap:.45rem;padding:.55rem 1rem;font-size:.85rem;font-weight:600;display:flex}.deck-action-btn:hover:not(:disabled){border-color:var(--border-active);background:#ffffff17}.deck-action-btn:disabled{opacity:.4;cursor:not-allowed}.deck-action-btn.primary-btn{background:var(--accent-emerald);color:#fff;box-shadow:0 4px 14px var(--accent-emerald-glow);border-color:#0000}.deck-action-btn.hint-btn{color:#fbbf24;border-color:#f59e0b4d}.chords-section-container{box-sizing:border-box;flex-direction:column;gap:1.5rem;width:100%;min-width:0;max-width:100%;display:flex}.chords-header-bar{background:var(--bg-card);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid var(--border-subtle);box-shadow:var(--shadow-md);box-sizing:border-box;border-radius:1.25rem;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;width:100%;min-width:0;max-width:100%;padding:1.25rem 1.75rem;display:flex}.chords-main-title{color:#fff;font-size:1.35rem;font-weight:800}.chords-main-subtitle{color:var(--text-muted);font-size:.85rem}.view-mode-toggle{border:1px solid var(--border-subtle);box-sizing:border-box;background:#00000059;border-radius:.75rem;gap:.35rem;padding:.25rem;display:flex}.view-mode-btn{color:var(--text-muted);box-sizing:border-box;border-radius:.55rem;align-items:center;gap:.5rem;padding:.5rem 1rem;font-size:.85rem;font-weight:600;display:flex}.view-mode-btn.active{background:var(--primary);color:#fff;box-shadow:0 2px 10px var(--primary-glow)}.chord-filters-bar{box-sizing:border-box;-webkit-overflow-scrolling:touch;scrollbar-width:none;align-items:center;gap:.6rem;width:100%;min-width:0;max-width:100%;padding-bottom:.25rem;display:flex;overflow-x:auto}.chord-filters-bar::-webkit-scrollbar{display:none}.filter-pill{color:var(--text-muted);border:1px solid var(--border-subtle);white-space:nowrap;box-sizing:border-box;background:#ffffff08;border-radius:9999px;flex-shrink:0;padding:.45rem 1rem;font-size:.82rem;font-weight:600}.filter-pill:hover{color:var(--text-main);background:#ffffff14}.filter-pill.active{background:var(--primary);color:#fff;box-shadow:0 2px 8px var(--primary-glow);border-color:#0000}.filter-pill.easy-pill.active{box-shadow:0 2px 8px var(--accent-emerald-glow);background:#059669}.chords-master-layout{box-sizing:border-box;grid-template-columns:1.15fr 1fr;align-items:start;gap:1.5rem;width:100%;min-width:0;max-width:100%;display:grid}.chords-cards-grid{box-sizing:border-box;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:.85rem;width:100%;min-width:0;max-width:100%;display:grid}.chord-item-card{background:var(--bg-card);border:1.5px solid var(--border-subtle);cursor:pointer;transition:all var(--transition-normal);border-radius:1.1rem;flex-direction:column;gap:.4rem;padding:.85rem;display:flex;position:relative}.chord-item-card:hover{background:var(--bg-card-hover);border-color:var(--border-active);box-shadow:var(--shadow-md);transform:translateY(-3px)}.chord-item-card.is-selected{border-color:var(--primary);box-shadow:0 0 20px var(--primary-glow);background:linear-gradient(135deg,#8b5cf626,#12141df2);transform:translateY(-3px)}.chord-card-header{justify-content:space-between;align-items:center;display:flex}.chord-card-name{font-size:1.4rem;font-weight:800;font-family:var(--font-mono);color:#fff}.diff-tag{text-transform:uppercase;border-radius:4px;padding:.15rem .4rem;font-size:.65rem;font-weight:700}.diff-1{color:#34d399;background:#10b98133}.diff-2{color:#fbbf24;background:#f59e0b33}.diff-3{color:#fb7185;background:#f43f5e33}.chord-card-diagram{justify-content:center;width:100%;display:flex}.chord-card-footer{border-top:1px solid var(--border-subtle);justify-content:space-between;align-items:center;margin-top:.2rem;padding-top:.4rem;display:flex}.chord-full-sub{color:var(--text-muted);white-space:nowrap;text-overflow:ellipsis;font-size:.7rem;overflow:hidden}.quick-strum-btn{width:28px;height:28px;color:var(--text-muted);background:#ffffff0d;border-radius:50%;justify-content:center;align-items:center;display:flex}.quick-strum-btn:hover{background:var(--primary);color:#fff}.chord-detail-inspector{background:var(--bg-card);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid var(--border-subtle);box-shadow:var(--shadow-md);border-radius:1.25rem;flex-direction:column;gap:1.25rem;padding:1.75rem;display:flex;position:sticky;top:1rem}.inspector-header{justify-content:space-between;align-items:flex-start;gap:1rem;display:flex}.inspector-badge{text-transform:uppercase;color:var(--primary);letter-spacing:.05em;font-size:.75rem;font-weight:700}.inspector-chord-name{color:#fff;font-size:1.85rem;font-weight:800}.inspector-chord-sub{color:var(--text-muted);font-size:1rem;font-weight:500}.inspector-diff-badge{border-radius:6px;padding:.25rem .65rem;font-size:.75rem;font-weight:700}.inspector-diagram-section{border:1px solid var(--border-subtle);background:#00000040;border-radius:1rem;align-items:center;gap:1.5rem;padding:1rem;display:flex}.large-diagram-box{flex-direction:column;flex-shrink:0;align-items:center;width:180px;display:flex}.diagram-click-hint{color:var(--text-dim);text-align:center;margin-top:.35rem;font-size:.68rem}.inspector-audio-actions{flex-direction:column;flex:1;gap:.75rem;display:flex}.chord-action-btn{border-radius:.75rem;justify-content:center;align-items:center;gap:.5rem;padding:.75rem 1rem;font-size:.88rem;font-weight:700;display:flex}.chord-action-btn.primary-strum{color:#000;box-shadow:0 4px 14px var(--accent-gold-glow);background:linear-gradient(135deg,#f59e0b,#d97706)}.chord-action-btn.primary-strum:hover{box-shadow:0 6px 20px var(--accent-gold-glow);transform:translateY(-2px)}.chord-action-btn.secondary-arpeggio{background:var(--primary);color:#fff;box-shadow:0 4px 14px var(--primary-glow)}.chord-action-btn.secondary-arpeggio:hover{box-shadow:0 6px 20px var(--primary-glow);transform:translateY(-2px)}.finger-legend-box{border:1px solid var(--border-subtle);background:#ffffff08;border-radius:.75rem;flex-direction:column;gap:.4rem;padding:.65rem .85rem;display:flex}.legend-title{color:var(--text-dim);text-transform:uppercase;font-size:.72rem;font-weight:700}.finger-chips-list{grid-template-columns:1fr 1fr;gap:.35rem;display:grid}.finger-chip{color:var(--text-muted);align-items:center;gap:.35rem;font-size:.75rem;display:flex}.finger-chip strong{color:#000;border-radius:50%;justify-content:center;align-items:center;width:18px;height:18px;font-size:.7rem;display:inline-flex}.finger-chip.finger-1 strong{background:#38bdf8}.finger-chip.finger-2 strong{background:#4ade80}.finger-chip.finger-3 strong{background:#facc15}.finger-chip.finger-4 strong{background:#c084fc}.inspector-meta-grid{flex-direction:column;gap:.75rem;display:flex}.meta-card-box{border-radius:.85rem;flex-direction:column;gap:.35rem;padding:.85rem 1rem;display:flex}.meta-card-box h4{align-items:center;gap:.4rem;font-size:.85rem;display:flex}.meta-card-box p{font-size:.8rem;line-height:1.45}.tip-card{background:#f59e0b14;border:1px solid #f59e0b40}.tip-card h4{color:#fbbf24}.tip-card p{color:#fef08a}.songs-card{background:#8b5cf614;border:1px solid #8b5cf640}.songs-card h4{color:#c084fc}.songs-card p{color:#e9d5ff}.progressions-footer-card{background:var(--bg-card);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid var(--border-subtle);box-shadow:var(--shadow-md);border-radius:1.25rem;flex-direction:column;gap:1.25rem;padding:1.5rem 1.75rem;display:flex}.prog-header{align-items:center;gap:.75rem;display:flex}.prog-icon-badge{width:42px;height:42px;color:var(--accent-emerald);background:#10b98126;border:1px solid #10b9814d;border-radius:12px;justify-content:center;align-items:center;display:flex}.prog-title{color:#fff;font-size:1.15rem;font-weight:700}.prog-subtitle{color:var(--text-muted);font-size:.8rem}.progressions-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1rem;display:grid}.progression-pill-card{border:1px solid var(--border-subtle);background:#00000059;border-radius:1rem;flex-direction:column;gap:.6rem;padding:1rem;display:flex}.prog-name{color:#fff;font-size:.85rem;font-weight:700}.prog-chords-sequence{flex-wrap:wrap;align-items:center;gap:.35rem;display:flex}.sequence-chord-badge{color:#e9d5ff;font-family:var(--font-mono);background:#8b5cf633;border:1px solid #8b5cf666;border-radius:6px;padding:.25rem .55rem;font-size:.85rem;font-weight:800}.sequence-arrow{color:var(--text-dim);font-size:.75rem}.prog-examples{color:var(--text-muted);flex:1;font-size:.72rem;line-height:1.4}.prog-play-btn{border:1px solid var(--border-subtle);color:var(--text-main);background:#ffffff0f;border-radius:.55rem;justify-content:center;align-items:center;gap:.4rem;padding:.45rem .85rem;font-size:.8rem;font-weight:700;display:flex}.prog-play-btn:hover:not(:disabled){background:var(--primary);color:#fff}.transition-trainer-card{background:var(--bg-card);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid var(--border-subtle);box-shadow:var(--shadow-md);border-radius:1.25rem;flex-direction:column;gap:1.5rem;padding:1.75rem;display:flex}.trainer-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;display:flex}.trainer-title-wrap{align-items:center;gap:.75rem;display:flex}.trainer-badge-icon{border:1px solid var(--border-gold);color:#fbbf24;background:#f59e0b26;border-radius:12px;justify-content:center;align-items:center;width:44px;height:44px;display:flex}.trainer-title{color:#fff;font-size:1.25rem;font-weight:800}.trainer-subtitle{color:var(--text-muted);font-size:.8rem}.pairs-quick-selector{flex-direction:column;gap:.35rem;display:flex}.pairs-label{color:var(--text-dim);font-size:.72rem;font-weight:600}.pairs-buttons-row{flex-wrap:wrap;gap:.4rem;display:flex}.pair-chip-btn{border:1px solid var(--border-subtle);color:var(--text-muted);background:#ffffff0a;border-radius:.5rem;padding:.35rem .75rem;font-size:.78rem;font-weight:700}.pair-chip-btn:hover{color:#fff;background:#ffffff1a}.pair-chip-btn.active{color:#fbbf24;border-color:var(--border-gold);background:#f59e0b33}.trainer-chords-selection{border:1px solid var(--border-subtle);background:#0000004d;border-radius:1rem;flex-wrap:wrap;justify-content:center;align-items:center;gap:1.25rem;padding:1rem;display:flex}.chord-picker-box{flex-direction:column;gap:.35rem;display:flex}.chord-picker-box label{color:var(--text-dim);font-size:.75rem;font-weight:600}.chord-select-dropdown{border:1px solid var(--border-active);color:#fff;background:#1c1e29;border-radius:.65rem;outline:none;padding:.55rem .85rem;font-size:.9rem;font-weight:700}.transition-arrow-symbol{color:var(--primary);margin-top:1rem}.trainer-active-stage{grid-template-columns:1fr 1.2fr 1fr;align-items:center;gap:1.25rem;display:grid}.stage-chord-panel{border:2px solid var(--border-subtle);transition:all var(--transition-normal);background:#00000059;border-radius:1.25rem;flex-direction:column;align-items:center;gap:.5rem;padding:1.25rem;display:flex}.stage-chord-panel.is-active-now{border-color:var(--accent-emerald);box-shadow:0 0 25px var(--accent-emerald-glow);background:linear-gradient(#10b98126,#00000080);transform:scale(1.03)}.stage-chord-panel.is-standby{opacity:.55}.stage-tag{text-transform:uppercase;letter-spacing:.05em;color:var(--text-dim);font-size:.7rem;font-weight:800}.is-active-now .stage-tag{color:#34d399}.stage-chord-name{font-size:2.2rem;font-weight:800;font-family:var(--font-mono);color:#fff}.stage-diagram-container{width:140px}.stage-metronome-center{flex-direction:column;align-items:center;gap:1rem;display:flex}.metronome-beats-grid{gap:.75rem;display:flex}.beat-indicator{border:2px solid var(--border-subtle);width:44px;height:44px;font-size:1.15rem;font-weight:800;font-family:var(--font-mono);color:var(--text-dim);background:#ffffff0d;border-radius:50%;justify-content:center;align-items:center;transition:all .1s;display:flex}.beat-indicator.active-beat{background:var(--accent-gold);color:#000;box-shadow:0 0 20px var(--accent-gold-glow);border-color:#fff;transform:scale(1.18)}.metronome-instruction{color:var(--text-muted);align-items:center;min-height:24px;font-size:.85rem;font-weight:700;display:flex}.switch-warning{color:#f43f5e;font-weight:800;animation:.4s infinite pulse-scale}.bpm-control-wrap{background:#00000040;border-radius:.75rem;flex-direction:column;gap:.45rem;width:100%;padding:.75rem 1rem;display:flex}.bpm-header-row{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.5rem;display:flex}.beats-selector-toggle{border:1px solid var(--border-subtle);background:#ffffff0d;border-radius:.5rem;gap:.2rem;padding:.15rem;display:flex}.beat-toggle-btn{color:var(--text-muted);transition:all var(--transition-fast);background:0 0;border-radius:.35rem;padding:.2rem .55rem;font-size:.72rem;font-weight:700}.beat-toggle-btn.active{background:var(--primary);color:#fff;box-shadow:0 2px 8px var(--primary-glow)}.beat-indicator.beat-one.active-beat{background:var(--accent-emerald);color:#000;box-shadow:0 0 25px var(--accent-emerald-glow);border-color:#fff}.bpm-text{color:var(--text-muted);font-size:.8rem}.bpm-slider{width:100%;accent-color:var(--primary)}.bpm-hints{color:var(--text-dim);justify-content:space-between;font-size:.65rem;display:flex}.trainer-controls-row{align-items:center;gap:.6rem;display:flex}.trainer-play-btn{color:#fff;box-shadow:0 4px 14px var(--accent-emerald-glow);background:linear-gradient(135deg,#10b981,#059669);border-radius:.75rem;align-items:center;gap:.5rem;padding:.75rem 1.5rem;font-size:.95rem;font-weight:800;display:flex}.trainer-play-btn.playing{background:linear-gradient(135deg,#f43f5e,#e11d48);box-shadow:0 4px 14px #f43f5e66}.trainer-reset-btn{border:1px solid var(--border-subtle);color:var(--text-muted);background:#ffffff0d;border-radius:.75rem;padding:.75rem}.trainer-reset-btn:hover{color:#fff;background:#ffffff1f}.quiz-mode-container{flex-direction:column;gap:1.5rem;display:flex}.quiz-scoreboard{grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:.85rem;display:grid}.score-stat{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:1rem;align-items:center;gap:.6rem;padding:.85rem 1rem;display:flex}.score-icon{color:#fbbf24}.streak-icon{color:#f97316}.stat-label{color:var(--text-muted);font-size:.8rem}.stat-value{color:#fff;font-size:1.15rem;font-weight:800;font-family:var(--font-mono);margin-left:auto}.quiz-question-card{background:var(--bg-card);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid var(--border-subtle);box-shadow:var(--shadow-md);border-radius:1.25rem;flex-direction:column;gap:1.5rem;padding:1.75rem;display:flex}.question-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;display:flex}.question-type-badge{text-transform:uppercase;letter-spacing:.05em;color:#c084fc;background:#8b5cf633;border:1px solid #8b5cf666;border-radius:9999px;align-items:center;gap:.4rem;padding:.3rem .75rem;font-size:.75rem;font-weight:700;display:inline-flex}.sound-replay-btn{color:#fbbf24;border:1px solid var(--border-gold);background:#f59e0b26;border-radius:.5rem;align-items:center;gap:.4rem;padding:.35rem .85rem;font-size:.8rem;font-weight:600;display:flex}.sound-replay-btn:hover{background:#f59e0b40}.question-prompt{color:#fff;font-size:1.35rem;font-weight:700;line-height:1.3}.quiz-options-grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:.85rem;display:grid}.quiz-option-btn{border:1.5px solid var(--border-subtle);text-align:center;transition:all var(--transition-fast);background:#ffffff08;border-radius:1rem;flex-direction:column;align-items:center;gap:.3rem;padding:1rem;display:flex;position:relative}.quiz-option-btn:hover:not(:disabled){border-color:var(--primary);background:#ffffff14;transform:translateY(-2px)}.option-string-num{color:var(--text-dim);font-size:.75rem;font-weight:700}.option-string-note{font-size:1.75rem;font-weight:800;font-family:var(--font-mono);color:#fff}.option-string-sub{color:var(--text-muted);font-size:.7rem}.quiz-option-btn.correct-answer{border-color:var(--accent-emerald);box-shadow:0 0 16px var(--accent-emerald-glow);background:#10b98133}.quiz-option-btn.incorrect-answer{border-color:var(--accent-rose);background:#f43f5e33}.result-icon{position:absolute;top:10px;right:10px}.result-icon.success{color:var(--accent-emerald)}.result-icon.error{color:var(--accent-rose)}.quiz-feedback-box{border-radius:1rem;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;padding:1.25rem 1.5rem;animation:.3s popIn;display:flex}.quiz-feedback-box.is-correct{background:#10b98126;border:1px solid #10b98166}.quiz-feedback-box.is-wrong{background:#f43f5e26;border:1px solid #f43f5e66}.feedback-message{align-items:center;gap:.85rem;display:flex}.feedback-icon{flex-shrink:0}.is-correct .feedback-icon{color:var(--accent-emerald)}.is-wrong .feedback-icon{color:var(--accent-rose)}.next-question-btn{background:var(--primary);color:#fff;box-shadow:0 4px 14px var(--primary-glow);border-radius:.75rem;align-items:center;gap:.5rem;padding:.65rem 1.25rem;font-size:.9rem;font-weight:700;display:flex}.next-question-btn:hover{box-shadow:0 6px 20px var(--primary-glow);transform:translateY(-2px)}.free-explorer-container{flex-direction:column;gap:1.5rem;display:flex}.explorer-header-bar{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:1.25rem;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;padding:1.25rem 1.75rem;display:flex}.explorer-title{color:#fff;font-size:1.25rem;font-weight:700}.explorer-desc{color:var(--text-muted);font-size:.85rem}.strum-all-btn{color:#000;box-shadow:0 4px 16px var(--accent-gold-glow);background:linear-gradient(135deg,#f59e0b,#d97706);border-radius:.75rem;align-items:center;gap:.5rem;padding:.7rem 1.25rem;font-size:.9rem;font-weight:700;display:flex}.strum-all-btn:hover{box-shadow:0 6px 24px var(--accent-gold-glow);transform:translateY(-2px)}.explorer-grid-layout{grid-template-columns:1.2fr 1fr;gap:1.5rem;display:grid}.explorer-strings-list{flex-direction:column;gap:.75rem;display:flex}.explorer-string-card{background:var(--bg-card);border:1px solid var(--border-subtle);cursor:pointer;transition:all var(--transition-fast);border-radius:1rem;align-items:center;gap:1rem;padding:1rem 1.25rem;display:flex}.explorer-string-card:hover{background:var(--bg-card-hover);border-color:var(--border-active);transform:translate(4px)}.explorer-string-card.selected{border-color:var(--primary);box-shadow:0 0 16px var(--primary-glow);background:linear-gradient(90deg,#8b5cf626,#12141dcc)}.card-badge-num{font-size:1.25rem;font-weight:800;font-family:var(--font-mono);color:#fff;min-width:32px}.card-note-info{min-width:90px}.card-main-note{font-size:1.35rem;font-weight:800;font-family:var(--font-mono);color:#fff;line-height:1}.card-octave-sub{color:var(--text-dim);margin-left:2px;font-size:.75rem}.card-full-name{color:var(--text-muted);font-size:.7rem}.string-wave-visualizer{flex:1;align-items:center;padding:0 .5rem;display:flex}.explorer-string-line{border-radius:9999px;width:100%;transition:transform 50ms}.explorer-string-line.wave-active{animation:.12s infinite string-vibrate}.card-freq-tag{font-size:.8rem;font-family:var(--font-mono);color:var(--text-dim);align-items:center;gap:.35rem;display:flex}.card-play-icon{color:var(--text-muted)}.explorer-string-card:hover .card-play-icon{color:var(--primary)}.explorer-detail-panel{background:var(--bg-card);border:1px solid var(--border-subtle);box-shadow:var(--shadow-md);border-radius:1.25rem;flex-direction:column;gap:1.25rem;padding:1.75rem;display:flex}.panel-header{flex-direction:column;gap:.35rem;display:flex}.panel-tag{text-transform:uppercase;letter-spacing:.05em;color:var(--primary);align-items:center;gap:.4rem;font-size:.75rem;font-weight:700;display:flex}.panel-title{color:#fff;font-size:1.45rem;font-weight:800}.panel-octave{color:var(--text-dim);margin-left:.3rem;font-size:.9rem}.panel-spec-grid{grid-template-columns:1fr 1fr;gap:.85rem;display:grid}.spec-item{border:1px solid var(--border-subtle);background:#0000004d;border-radius:.75rem;flex-direction:column;gap:.25rem;padding:.75rem;display:flex}.spec-label{color:var(--text-dim);font-size:.7rem}.spec-value{color:#fff;font-size:.95rem;font-weight:700}.spec-value.highlight{color:#fbbf24;font-family:var(--font-mono)}.panel-description-box{border:1px solid var(--border-subtle);background:#ffffff05;border-radius:.75rem;flex-direction:column;gap:.4rem;padding:1rem;display:flex}.panel-description-box h5{color:var(--text-main);align-items:center;gap:.35rem;font-size:.85rem;display:flex}.panel-description-box p{color:var(--text-muted);font-size:.85rem;line-height:1.5}.panel-mnemonic-hint{color:#fbbf24;border:1px solid var(--border-gold);background:#f59e0b1a;border-radius:.75rem;align-items:flex-start;gap:.5rem;padding:.75rem 1rem;font-size:.85rem;display:flex}.sparkle-gold{color:#f59e0b;flex-shrink:0;margin-top:2px}.panel-pluck-big-btn{background:var(--primary);color:#fff;box-shadow:0 4px 16px var(--primary-glow);border-radius:.75rem;justify-content:center;align-items:center;gap:.6rem;padding:.85rem;font-size:.95rem;font-weight:700;display:flex}.panel-pluck-big-btn:hover{box-shadow:0 6px 22px var(--primary-glow);transform:translateY(-2px)}.modal-backdrop{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:100;background:#000000bf;justify-content:center;align-items:center;padding:1rem;animation:.2s fadeIn;display:flex;position:fixed;inset:0}.mnemonic-modal-card{border:1px solid var(--border-active);width:100%;max-width:680px;max-height:90vh;box-shadow:var(--shadow-lg), 0 0 40px #8b5cf633;background:#11131a;border-radius:1.5rem;flex-direction:column;animation:.3s cubic-bezier(.34,1.56,.64,1) popIn;display:flex;overflow:hidden}.modal-header{border-bottom:1px solid var(--border-subtle);justify-content:space-between;align-items:center;padding:1.5rem 1.75rem 1rem;display:flex}.modal-title-wrap{align-items:center;gap:.75rem;display:flex}.modal-badge-icon{border:1px solid var(--border-gold);color:#fbbf24;background:#f59e0b26;border-radius:12px;justify-content:center;align-items:center;width:42px;height:42px;display:flex}.modal-header h3{color:#fff;font-size:1.2rem;font-weight:800}.modal-header p{color:var(--text-muted);font-size:.8rem}.modal-close-btn{color:var(--text-muted);border-radius:.5rem;padding:.4rem}.modal-close-btn:hover{color:#fff;background:#ffffff1a}.modal-body-content{flex-direction:column;gap:1.25rem;padding:1.5rem 1.75rem;display:flex;overflow-y:auto}.mnemonic-section-card{border:1px solid var(--border-subtle);background:#ffffff05;border-radius:1rem;flex-direction:column;gap:1rem;padding:1.25rem;display:flex}.section-direction-tag{color:#fbbf24;align-items:center;gap:.4rem;font-size:.85rem;font-weight:700;display:flex}.phrases-grid{flex-direction:column;gap:.85rem;display:flex}.phrase-box{border:1px solid var(--border-subtle);background:#00000059;border-radius:.75rem;flex-direction:column;gap:.4rem;padding:.85rem 1rem;display:flex}.phrase-box.highlight-es{background:#f59e0b0d;border-color:#f59e0b4d}.phrase-box.solfege-es{background:#8b5cf60d;border-color:#8b5cf64d}.phrase-lang{color:var(--text-dim);font-size:.75rem;font-weight:700}.phrase-quote{color:#fff;font-size:1.05rem;font-style:italic;font-weight:800}.phrase-breakdown{flex-wrap:wrap;gap:.4rem;margin-top:.25rem;display:flex}.word-chip{color:var(--text-muted);background:#ffffff0f;border-radius:4px;padding:.15rem .45rem;font-size:.75rem}.word-chip strong{color:#fbbf24}.mnemonic-tips-card{background:#10b98114;border:1px solid #10b9814d;border-radius:1rem;flex-direction:column;gap:.6rem;padding:1rem 1.25rem;display:flex}.mnemonic-tips-card h4{color:#34d399;align-items:center;gap:.4rem;font-size:.95rem;display:flex}.mnemonic-tips-card ul{color:#d1fae5;flex-direction:column;gap:.4rem;padding-left:1.25rem;font-size:.8rem;display:flex}.modal-footer{border-top:1px solid var(--border-subtle);justify-content:flex-end;padding:1rem 1.75rem;display:flex}.modal-ok-btn{background:var(--primary);color:#fff;border-radius:.75rem;padding:.65rem 1.5rem;font-size:.9rem;font-weight:700}.modal-ok-btn:hover{background:#7c3aed}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.btn-full-label{display:inline}.btn-short-label{display:none}.guitar-fretboard-card-wrapper{-webkit-overflow-scrolling:touch;border-radius:1.25rem;width:100%;max-width:100%;overflow-x:auto}.floating-touch-badge{pointer-events:none;z-index:999999;border:2.5px solid var(--primary);width:78px;height:78px;box-shadow:0 16px 40px #000c, 0 0 25px var(--primary-glow);touch-action:none;-webkit-user-select:none;user-select:none;will-change:left, top;background:linear-gradient(135deg,#2d344ef2,#12141dfa);border-radius:1.15rem;flex-direction:column;justify-content:center;align-items:center;gap:.15rem;margin:0;animation:.12s cubic-bezier(.34,1.56,.64,1) pickUpBadge;display:flex;position:fixed;transform:translate(-50%,-65%)scale(1.12)}@keyframes pickUpBadge{0%{opacity:.7;transform:translate(-50%,-50%)scale(.95)}to{opacity:1;transform:translate(-50%,-65%)scale(1.12)}}.floating-badge-note{font-size:2.1rem;font-weight:800;font-family:var(--font-mono);color:#fff;line-height:1}.floating-badge-octave{color:#c084fc;font-size:.75rem;font-weight:700}.note-chip.is-picked-up{opacity:.25;border-style:dashed;transform:scale(.94)}.selected-badge-banner{border:1.5px solid var(--border-gold);background:linear-gradient(135deg,#f59e0b26,#d9770638);border-radius:.85rem;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.75rem;padding:.75rem 1rem;animation:.25s popIn;display:flex}.selected-badge-text{color:#fbbf24;font-size:.85rem;font-weight:600}.selected-badge-text strong{color:#fff;font-family:var(--font-mono);font-size:1.15rem}.cancel-selection-btn{border:1px solid var(--border-subtle);color:#fff;background:#ffffff14;border-radius:.5rem;align-items:center;gap:.3rem;padding:.35rem .75rem;font-size:.78rem;font-weight:700;display:flex}.cancel-selection-btn:hover{border-color:var(--accent-rose);color:#fb7185;background:#f43f5e4d}.string-lane.waiting-for-placement{cursor:pointer;background:#f59e0b0f}.string-lane.waiting-for-placement:hover{background:#f59e0b2e;outline:1.5px dashed #f59e0bb3}@media (width<=1024px){.explorer-grid-layout,.chords-master-layout{grid-template-columns:1fr;gap:1.25rem}.chord-detail-inspector{position:static}.chords-cards-grid{grid-template-columns:repeat(auto-fill,minmax(130px,1fr))}}@media (width<=768px){.app-wrapper{gap:1.15rem;padding:1rem .75rem 2.5rem;overflow-x:hidden}.app-header{border-radius:1.1rem;gap:.85rem;padding:1rem .85rem}.header-top{flex-direction:column;align-items:stretch;gap:.85rem}.brand{justify-content:flex-start;gap:.75rem}.brand-icon-wrapper{width:42px;height:42px}.brand-title{font-size:1.45rem}.brand-subtitle{font-size:.78rem}.header-actions{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.45rem;width:100%;display:flex}.notation-pill{padding:.2rem}.notation-btn{gap:.3rem;padding:.35rem .65rem;font-size:.78rem}.helper-btn{padding:.45rem .75rem;font-size:.8rem}.action-icon-btn{padding:.45rem .7rem}.mode-navbar{-webkit-overflow-scrolling:touch;scrollbar-width:none;gap:.45rem;padding-top:.75rem}.mode-navbar::-webkit-scrollbar{display:none}.mode-tab{flex-shrink:0;gap:.45rem;padding:.55rem .85rem;font-size:.82rem}.guitar-fretboard-card{border-radius:1.1rem;min-height:400px}.guitar-headstock{width:50px}.headstock-logo{letter-spacing:.05em;font-size:.65rem}.headstock-truss-cover{width:10px;height:14px}.guitar-nut{width:16px}.fretboard-board{padding:.85rem .45rem}.string-lane{border-radius:.55rem;gap:.45rem;padding:.35rem .25rem}.string-number-tag{min-width:36px}.num-pill{font-size:.95rem}.string-subinfo{display:none}.drop-slot{border-radius:.55rem;min-width:60px;max-width:78px;height:40px;padding:.2rem .4rem}.badge-note-main{font-size:1.1rem}.badge-octave{font-size:.65rem}.badge-check-icon{display:none}.empty-slot-placeholder{gap:.2rem;font-size:.65rem}.string-visual-wrapper{padding:.35rem 0}.string-audio-trigger{justify-content:flex-end;min-width:38px}.pluck-btn{gap:.2rem;padding:.35rem .45rem;font-size:.72rem}.freq-text{display:none}.fretboard-controls{flex-direction:column;align-items:stretch;gap:.5rem;padding:0}.order-toggle{flex-wrap:wrap;justify-content:space-between;gap:.35rem}.order-btn{text-align:center;flex:auto;padding:.35rem .5rem;font-size:.75rem}.fretboard-legend{flex-wrap:wrap;gap:.6rem;font-size:.72rem}.badge-deck-container{border-radius:1.1rem;gap:1rem;padding:1.15rem}.deck-header{flex-direction:column;align-items:stretch;gap:.75rem}.progress-card{width:100%;min-width:100%}.badges-grid{grid-template-columns:repeat(3,1fr);gap:.55rem}.note-chip{border-radius:.75rem;min-height:66px;padding:.75rem .35rem}.chip-note-name{font-size:1.65rem}.chip-drag-handle{letter-spacing:1px;font-size:.68rem}.deck-actions-footer{grid-template-columns:1fr 1fr;gap:.5rem;display:grid}.deck-action-btn{justify-content:center;width:100%;padding:.55rem .5rem;font-size:.8rem}.deck-action-btn.hint-btn{grid-column:span 2}.completion-banner{text-align:center;flex-direction:column;gap:.85rem;padding:1.15rem 1rem}.completion-banner .deck-action-btn{justify-content:center;width:100%}.chords-section-container{width:100%;min-width:0;max-width:100%;overflow-x:hidden}.chords-header-bar{box-sizing:border-box;border-radius:1.1rem;flex-direction:column;align-items:stretch;gap:.75rem;width:100%;min-width:0;max-width:100%;padding:1rem .85rem}.chords-main-title{font-size:1.2rem}.view-mode-toggle{box-sizing:border-box;grid-template-columns:1fr 1fr;width:100%;display:grid}.view-mode-btn{text-align:center;justify-content:center;padding:.45rem .4rem;font-size:.78rem}.chord-filters-bar{box-sizing:border-box;-webkit-overflow-scrolling:touch;scrollbar-width:none;gap:.35rem;width:100%;min-width:0;max-width:100%;padding-bottom:.35rem;overflow-x:auto}.chord-filters-bar::-webkit-scrollbar{display:none}.filter-pill{flex-shrink:0;padding:.35rem .75rem;font-size:.75rem}.chords-master-layout{box-sizing:border-box;grid-template-columns:minmax(0,1fr);gap:1.25rem;width:100%;min-width:0;max-width:100%}.chords-cards-grid{box-sizing:border-box;grid-template-columns:repeat(2,minmax(0,1fr));gap:.65rem;width:100%;min-width:0;max-width:100%}.chord-item-card{box-sizing:border-box;border-radius:.85rem;width:100%;min-width:0;max-width:100%;padding:.75rem .55rem}.chord-card-name{font-size:1.15rem}.diff-tag{padding:.1rem .25rem;font-size:.55rem}.chord-full-sub{font-size:.62rem}.quick-strum-btn{width:26px;height:26px}.chord-detail-inspector{box-sizing:border-box;border-radius:1.1rem;gap:1rem;width:100%;min-width:0;max-width:100%;padding:1.15rem .85rem}.inspector-header{box-sizing:border-box;flex-direction:column;align-items:flex-start;gap:.4rem;width:100%}.inspector-chord-name{font-size:1.35rem}.inspector-diagram-section{box-sizing:border-box;flex-direction:column;align-items:center;gap:1rem;width:100%;min-width:0;max-width:100%;padding:.85rem .5rem}.large-diagram-box{box-sizing:border-box;width:100%;max-width:220px;margin:0 auto}.inspector-audio-actions{box-sizing:border-box;width:100%;min-width:0;max-width:100%}.chord-action-btn{box-sizing:border-box;width:100%;padding:.65rem .75rem;font-size:.82rem}.progressions-footer-card{box-sizing:border-box;border-radius:1.1rem;width:100%;min-width:0;max-width:100%;padding:1.15rem .85rem}.progressions-grid{box-sizing:border-box;grid-template-columns:minmax(0,1fr);gap:.75rem;width:100%;min-width:0;max-width:100%}.progression-pill-card{box-sizing:border-box;width:100%;min-width:0;max-width:100%}.transition-trainer-card{border-radius:1.1rem;gap:1rem;padding:1.15rem 1rem}.trainer-header{flex-direction:column;align-items:stretch;gap:.75rem}.trainer-title{font-size:1.15rem}.pairs-buttons-row{grid-template-columns:1fr 1fr;gap:.35rem;display:grid}.pair-chip-btn{text-align:center;padding:.35rem .45rem;font-size:.72rem}.trainer-chords-selection{flex-direction:column;gap:.6rem;width:100%;padding:.85rem}.chord-picker-box{width:100%}.chord-select-dropdown{width:100%;padding:.45rem .65rem;font-size:.85rem}.transition-arrow-symbol{margin:0;transform:rotate(90deg)}.trainer-active-stage{grid-template-columns:1fr 1fr;grid-template-areas:"chordA chordB""metro metro";align-items:start;gap:.75rem;display:grid}.chord-panel-a{grid-area:chordA}.chord-panel-b{grid-area:chordB}.stage-metronome-center{grid-area:metro;width:100%}.stage-chord-panel{border-radius:.85rem;gap:.35rem;padding:.75rem .45rem}.stage-chord-name{font-size:1.45rem}.stage-diagram-container{width:min(110px,100%)}.metronome-beats-grid{gap:.5rem}.beat-indicator{width:38px;height:38px;font-size:.95rem}.trainer-controls-row{justify-content:center;width:100%}.trainer-play-btn{flex:1;justify-content:center;padding:.65rem .85rem;font-size:.85rem}.quiz-scoreboard{grid-template-columns:1fr 1fr;gap:.5rem}.score-stat{border-radius:.75rem;padding:.6rem .75rem}.stat-label{font-size:.72rem}.stat-value{font-size:.95rem}.quiz-question-card{border-radius:1.1rem;gap:1rem;padding:1.15rem 1rem}.question-header{flex-direction:column;align-items:flex-start;gap:.5rem}.sound-replay-btn{justify-content:center;width:100%;font-size:.78rem}.question-prompt{font-size:1.15rem;line-height:1.35}.quiz-options-grid{grid-template-columns:1fr 1fr;gap:.55rem}.quiz-option-btn{border-radius:.75rem;min-height:82px;padding:.7rem .45rem}.option-string-note{font-size:1.45rem}.quiz-feedback-box{flex-direction:column;align-items:stretch;gap:.75rem;padding:.85rem}.next-question-btn{justify-content:center;width:100%;font-size:.85rem}.explorer-header-bar{border-radius:1.1rem;flex-direction:column;align-items:stretch;gap:.75rem;padding:1rem .85rem}.strum-all-btn{justify-content:center;width:100%;padding:.65rem 1rem;font-size:.82rem}.explorer-string-card{border-radius:.75rem;gap:.5rem;padding:.65rem .75rem}.card-badge-num{min-width:22px;font-size:.95rem}.card-note-info{min-width:55px}.card-main-note{font-size:1.1rem}.card-full-name{font-size:.58rem}.card-freq-tag{font-size:.68rem}.explorer-detail-panel{border-radius:1.1rem;gap:1rem;padding:1.15rem 1rem}.panel-title{font-size:1.25rem}.panel-spec-grid{grid-template-columns:1fr 1fr;gap:.45rem}.spec-item{border-radius:.6rem;padding:.5rem}.spec-label{font-size:.62rem}.spec-value{font-size:.82rem}.panel-description-box{padding:.75rem;font-size:.78rem}.panel-mnemonic-hint{padding:.65rem .75rem;font-size:.78rem}.panel-pluck-big-btn{width:100%;padding:.7rem;font-size:.85rem}.mnemonic-modal-card{border-radius:1.15rem;max-width:95vw;max-height:90vh}.modal-header{padding:.85rem 1rem}.modal-header h3{font-size:1rem}.modal-header p{font-size:.72rem}.modal-body-content{gap:.85rem;padding:.85rem 1rem}.mnemonic-section-card{border-radius:.75rem;gap:.65rem;padding:.75rem}.section-direction-tag{font-size:.75rem}.phrase-box{border-radius:.6rem;padding:.65rem .75rem}.phrase-lang{font-size:.68rem}.phrase-quote{font-size:.9rem}.word-chip{padding:.1rem .35rem;font-size:.65rem}.mnemonic-tips-card{padding:.75rem .85rem}.mnemonic-tips-card ul{font-size:.75rem}.modal-footer{padding:.75rem 1rem}.modal-ok-btn{justify-content:center;width:100%;padding:.6rem;font-size:.85rem}}@media (width<=640px){.btn-full-label{display:none}.btn-short-label{display:inline}.header-actions{flex-wrap:wrap;justify-content:space-between;gap:.35rem;display:flex}.guitar-type-pill{width:100%;display:flex}.guitar-type-pill .notation-btn{flex:1;justify-content:center}.notation-pill{flex:1;display:flex}.notation-pill .notation-btn,.helper-btn{flex:1;justify-content:center}}@media (width<=380px){.app-wrapper{padding:.65rem .4rem 2rem}.chords-cards-grid{grid-template-columns:1fr 1fr}.badges-grid{grid-template-columns:repeat(3,1fr);gap:.4rem}.drop-slot{min-width:52px;max-width:66px;height:36px}.badge-note-main{font-size:.95rem}.slot-hint-text{display:none}.guitar-headstock{width:40px}.headstock-logo{font-size:.55rem}.guitar-nut{width:12px}}