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var(--border-color);background:var(--btn-bg);width:34px;height:30px;color:var(--text-primary);cursor:pointer;font-family:var(--font-sans);border-radius:8px;justify-content:center;align-items:center;font-size:1rem;font-weight:800;display:inline-flex}.fp-guided-icon-button:hover,.fp-guided-icon-button:focus-visible{background:var(--btn-hover-bg)}.fp-scale-support-row{flex-wrap:wrap;align-items:flex-start;gap:10px;padding:10px 12px;display:flex}.fp-note-support-row{grid-template-columns:minmax(240px,1.3fr) minmax(240px,1fr) minmax(240px,1fr);align-items:stretch;gap:10px;padding:10px 12px;display:grid}.fp-note-support-row.is-practice{grid-template-columns:minmax(280px,1.4fr) minmax(240px,1fr)}.fp-note-lesson-card,.fp-note-quiz-card,.fp-note-progress-card{min-width:0;padding:12px}.fp-note-lesson-card h2{color:var(--text-primary);margin:0 0 6px;font-size:.98rem;font-weight:760;line-height:1.2}.fp-note-lesson-card p{color:var(--text-secondary);margin:0;font-size:.86rem;line-height:1.45}.fp-note-quiz-card,.fp-note-progress-card{flex-direction:column;gap:10px;display:flex}.fp-note-quiz-top,.fp-note-find-row{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;display:flex}.fp-note-quiz-top>strong{color:var(--text-primary);font-size:.92rem;font-weight:780}.fp-note-quiz-meta{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:8px;display:inline-flex}.fp-note-timer{background:var(--color-olive);border:1px solid #53643661;border-radius:999px;justify-content:center;align-items:center;min-width:46px;min-height:24px;padding:0 8px;display:inline-flex}@supports (color:color-mix(in lab, red, red)){.fp-note-timer{background:color-mix(in srgb, var(--color-olive) 10%, var(--bg-app))}}.fp-note-timer{color:var(--olive-text);font-variant-numeric:tabular-nums;font-size:.74rem;font-weight:820;line-height:1}.fp-note-timer.is-low{color:#7f1d1d;background:#fef2f2;border-color:#fca5a5}.fp-note-prompt{border:1px solid var(--border-color);background:var(--bg-app);min-height:54px;color:var(--text-secondary);opacity:.62;border-radius:8px;justify-content:center;align-items:center;gap:10px;font-size:.82rem;font-weight:700;display:flex}.fp-note-prompt strong{color:var(--text-primary);font-size:1.9rem;line-height:1}.fp-note-prompt.active{opacity:1;border-color:#1414143d}.fp-note-prompt.is-waiting{animation:1.8s ease-in-out infinite fp-note-waiting-pulse}@keyframes fp-note-waiting-pulse{0%,to{background:var(--bg-app);box-shadow:none;border-color:#1414143d}50%{background:color-mix(in srgb, var(--color-olive) 9%, var(--bg-app));border-color:#53643675;box-shadow:0 0 0 3px #53643614}}@media 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var(--border-color);background:var(--btn-bg);border-radius:999px;height:8px;display:block}.fp-note-streak-track span.filled{border-style:solid;border-color:var(--color-olive);background:var(--color-olive)}.fp-note-progress-head h2{color:var(--text-primary);margin:0;font-size:.92rem;font-weight:760}.fp-note-progress-head span{color:var(--text-secondary);font-size:.7rem;font-weight:700}.fp-note-progress-stats{grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;display:grid}.fp-note-progress-stat{border:1px solid var(--border-color);background:var(--bg-app);border-radius:8px;flex-direction:column;justify-content:center;align-items:center;min-height:54px;display:flex}.fp-note-progress-stat strong{color:var(--text-primary);font-size:1.35rem;line-height:1}.fp-note-progress-stat span{color:var(--text-secondary);font-size:.68rem;font-weight:700}.fp-note-progress-nudge{color:var(--text-secondary);margin:0;font-size:.8rem;line-height:1.35}.fp-note-resume-band{background:#53643614;border:1px 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var(--int-1P);background:var(--int-1P);min-height:32px;color:var(--color-slate-1000);font-family:var(--font-sans);cursor:pointer;border-radius:999px;align-self:flex-start;padding:0 14px;font-size:.78rem;font-weight:760}.fp-note-progress-cta:hover{background:var(--int-1P)}@supports (color:color-mix(in lab, red, red)){.fp-note-progress-cta:hover{background:color-mix(in srgb, var(--int-1P) 88%, var(--color-slate-000))}}.fp-note-clear-button{border:1px solid var(--border-color);min-height:30px;color:var(--text-secondary);font-family:var(--font-sans);cursor:pointer;background:0 0;border-radius:999px;align-self:flex-start;padding:0 12px;font-size:.74rem;font-weight:740}.fp-note-clear-button:hover{color:#b91c1c;background:#b91c1c0f;border-color:#b91c1c6b}.fp-note-clear-confirm{color:#991b1b;background:#b91c1c0f;border:1px solid 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select{background:var(--bg-card)}.fp-progression-drawer{border-bottom:1px solid var(--border-color);background:var(--bg-card)}.fp-progression-drawer-toggle{background:var(--bg-card);width:100%;min-height:44px;color:var(--text-primary);font-family:var(--font-sans);text-align:left;cursor:pointer;border:0;justify-content:space-between;align-items:center;gap:12px;padding:8px 12px;display:flex}.fp-progression-drawer-toggle>span:first-child{gap:2px;min-width:0;display:grid}.fp-progression-drawer-toggle strong{font-size:.86rem;line-height:1.1}.fp-progression-drawer-toggle small{color:var(--text-secondary);text-overflow:ellipsis;white-space:nowrap;font-size:.72rem;font-weight:700;line-height:1.15;overflow:hidden}.fp-progression-drawer-action{border:1px solid var(--border-color);background:var(--btn-bg);color:var(--accent-text);border-radius:999px;flex:none;padding:4px 10px;font-size:.72rem;font-weight:800}.fp-progression-drawer.open .fp-progression-drawer-toggle{border-bottom:1px solid var(--border-color)}.fp-progression-lane{background:var(--bg-card);flex-direction:column;gap:10px;padding:10px 12px 12px;display:flex}.fp-progression-controls{align-items:center;gap:10px;display:flex}.fp-progression-controls .fp-guided-select{flex:260px;min-width:0}.fp-progression-controls .fp-guided-select select{background:var(--bg-card);width:100%}.fp-progression-play{border:1px solid var(--border-color);background:var(--accent);min-height:42px;color:var(--btn-active-fg);font-family:var(--font-sans);cursor:pointer;border-radius:8px;flex:none;padding:0 16px;font-size:.92rem;font-weight:800}.fp-progression-play:disabled{background:var(--btn-bg);color:var(--text-secondary);cursor:not-allowed}.fp-progression-slots{-webkit-overflow-scrolling:touch;overscroll-behavior-x:contain;scrollbar-width:none;gap:8px;display:flex;overflow:auto hidden}.fp-progression-slots::-webkit-scrollbar{display:none}.fp-progression-slot{border:1px solid var(--border-color);background:var(--bg-app);min-width:116px;max-width:160px;min-height:78px;color:var(--text-primary);font-family:var(--font-sans);text-align:left;cursor:pointer;border-radius:8px;flex:1 0 116px;grid-template-rows:auto 1fr auto;gap:3px;padding:8px 10px;display:grid}.fp-progression-slot strong{color:var(--text-primary);align-self:center;font-size:1.08rem;line-height:1}.fp-progression-slot span{color:var(--text-secondary);text-overflow:ellipsis;white-space:nowrap;font-size:.72rem;font-weight:700;line-height:1.15;overflow:hidden}.fp-progression-slot .fp-progression-slot-label{color:var(--text-secondary);text-transform:uppercase;font-size:.66rem}.fp-progression-slot.filled{border-color:var(--success-text)}.fp-progression-slot.filled span:last-child{color:var(--success-text)}.fp-progression-slot.active{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent)}.fp-progression-slot.playing{background:var(--accent);border-color:var(--accent);color:var(--btn-active-fg)}.fp-progression-slot.playing strong,.fp-progression-slot.playing span,.fp-progression-slot.playing .fp-progression-slot-label{color:var(--btn-active-fg)}.fp-guided-chord-card{flex-direction:column;gap:5px;min-width:0;display:flex}.fp-guided-chord-badges{align-items:center;gap:5px;min-height:20px;display:flex}.fp-guided-chord-card .chord-card{width:100%}.fp-guided-chord-card.active .chord-card{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent)}.fp-guided-chord-key{border:1px solid var(--border-color);background:var(--btn-bg);font-family:var(--font-sans);border-radius:999px;align-self:flex-start;padding:2px 7px;font-size:.68rem;font-weight:700;line-height:1.2}.fp-guided-chord-key.in-key{color:var(--success-text)}.fp-guided-chord-key.color{color:var(--olive-text)}.fp-guided-chord-key.outside,.fp-guided-chord-key.out-key{color:var(--error-text)}.fp-guided-chord-degree{background:var(--degree-bg,var(--btn-bg));color:var(--degree-text,var(--text-primary));font-family:var(--font-sans);border:1px solid #0000002e;border-radius:999px;align-items:center;padding:2px 7px;font-size:.68rem;font-weight:800;line-height:1.2;display:inline-flex}.fp-guided-chord-degree--1p{--degree-bg:var(--int-1P);--degree-text:#fff}.fp-guided-chord-degree--1a{--degree-bg:var(--int-1A);--degree-text:#fff}.fp-guided-chord-degree--2m{--degree-bg:var(--int-2m);--degree-text:#fff}.fp-guided-chord-degree--2M{--degree-bg:var(--int-2M);--degree-text:#000}.fp-guided-chord-degree--3m{--degree-bg:var(--int-3m);--degree-text:#000}.fp-guided-chord-degree--3M{--degree-bg:var(--int-3M);--degree-text:#000}.fp-guided-chord-degree--4p{--degree-bg:var(--int-4P);--degree-text:#000}.fp-guided-chord-degree--4a,.fp-guided-chord-degree--5d{--degree-bg:var(--int-5d);--degree-text:#000}.fp-guided-chord-degree--5p{--degree-bg:var(--int-5P);--degree-text:#000}.fp-guided-chord-degree--5a{--degree-bg:var(--int-5A);--degree-text:#fff}.fp-guided-chord-degree--6m{--degree-bg:var(--int-6m);--degree-text:#fff}.fp-guided-chord-degree--6M{--degree-bg:var(--int-6M);--degree-text:#fff}.fp-guided-chord-degree--7m{--degree-bg:var(--int-7m);--degree-text:#fff}.fp-guided-chord-degree--7M{--degree-bg:var(--int-7M);--degree-text:#fff}.fp-guided-empty{color:var(--text-primary);text-align:center;grid-column:1/-1;margin:0;padding:12px;font-size:.875rem}@media (width<=767px){.fp-progression-lane{padding:8px 10px 10px}.fp-progression-controls{flex-wrap:nowrap;gap:8px}.fp-progression-controls .fp-guided-select{flex:auto;min-width:0}.fp-progression-play{min-height:40px;padding:0 12px}.fp-progression-slot{flex-basis:108px;min-width:108px}.fp-guided-chord-grid{-webkit-overflow-scrolling:touch;overscroll-behavior-x:contain;scroll-snap-type:x proximity;scrollbar-width:none;flex-wrap:nowrap;align-items:flex-start;gap:10px;display:flex;overflow:auto hidden}.fp-guided-chord-grid::-webkit-scrollbar{display:none}.fp-guided-chord-card{scroll-snap-align:start;flex:0 0 136px;width:136px}.fp-guided-empty{flex:1 0 100%}}.fp-guided-chip{border:1px solid var(--border-color);background:var(--btn-bg);min-height:30px;color:var(--text-primary);cursor:pointer;font-family:var(--font-sans);border-radius:999px;justify-content:center;align-items:center;gap:6px;padding:4px 10px;font-size:.8rem;font-weight:650;display:inline-flex}.fp-guided-chip.active{background:var(--btn-active-bg);border-color:var(--btn-active-bg);color:var(--btn-active-fg)}.fp-guided-chip span{opacity:.7;font-size:.68rem}.fp-guided-chip span.in-key,.fp-guided-chip span.out-key{opacity:1;border-radius:999px;padding:1px 6px}.fp-guided-chip span.in-key{color:#15803d;background:#16a34a24}.fp-guided-chip span.out-key{color:#b91c1c;background:#ef444424}@media (width<=767px){.fp-fret-mode-shell{padding:0 8px}.fp-fret-mode-tabs{grid-template-columns:repeat(4,minmax(104px,1fr));min-width:456px}.fp-fret-mode-tab{min-height:50px;padding:8px 10px 10px}.fp-fret-mode-tab span{font-size:.84rem}.fp-fret-mode-tab small{font-size:.62rem}.fp-guided-select>span{display:none}.fp-guided-toolbar--chords{flex-wrap:nowrap;gap:6px;padding:8px}.fp-guided-toolbar--chords .fp-guided-select{flex:1 1 0}.fp-guided-toolbar--chords .fp-guided-select:first-child{flex:0 0 52px}.fp-guided-toolbar--chords .fp-guided-select:last-child{flex:0 0 104px}.fp-guided-toolbar--chords .fp-guided-select select{width:100%;max-width:none;padding:0 8px}.fp-note-support-row{grid-template-columns:1fr}}.fp-box-group{flex-direction:column;align-items:flex-start;gap:3px;display:flex}@media (width>=768px){.fp-box-group{flex-direction:row;align-items:center;gap:6px}}@media (width<=767px){.fp-toolbar-row1{gap:6px;padding:6px 8px}.fp-toolbar-row2{gap:8px;padding:4px 8px 6px}.fp-toolbar-label--hidden-mobile{display:none}}.fp-box-label-short{display:none}.fp-ear-page{background:var(--bg-app);min-height:calc(100vh - 49px)}.fp-ear-topbar-inner{align-items:center;gap:14px;max-width:920px;margin:0 auto;padding:8px 12px;display:flex}.fp-ear-stat-cluster{flex:none;align-items:stretch;gap:8px;display:flex}.fp-ear-mini-stat,.fp-ear-xp-stat{border:1px solid var(--border-color);background:var(--bg-surface);border-radius:8px;min-height:48px}.fp-ear-mini-stat{align-items:center;gap:8px;min-width:112px;padding:7px 10px;display:flex}.fp-ear-xp-stat{min-width:156px;padding:7px 10px}.fp-ear-topbar-label{color:var(--text-primary);letter-spacing:.06em;opacity:.62;text-transform:uppercase;font-size:.62rem;font-weight:700;line-height:1.15}.fp-ear-xp-bar{gap:2px;width:100%;margin-top:5px;display:flex}.fp-ear-session-panel{flex:1;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:6px 12px;min-width:0;padding:7px 0;display:grid}.fp-ear-session-panel .fp-ear-topbar-label{grid-column:1/-1}.fp-ear-session-copy{color:var(--text-primary);min-width:0;font-size:.82rem;line-height:1.35}.fp-ear-content{flex-direction:column;gap:14px;max-width:780px;margin:0 auto;padding:16px 16px 20px;display:flex}.fp-ear-track-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}.fp-ear-quick-stats{grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;display:grid}.fp-ear-choice-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-bottom:12px;display:grid}.fp-skill-pair-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}@media (width<=700px){.fp-ear-topbar-inner{flex-direction:column;align-items:stretch;gap:8px;padding:7px 8px 8px}.fp-ear-stat-cluster{grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:8px;display:grid}.fp-ear-mini-stat,.fp-ear-xp-stat{min-width:0}.fp-ear-session-panel{grid-template-columns:minmax(0,1fr);padding:2px 0 0}.fp-ear-start-btn{width:100%}.fp-ear-content{padding:12px 10px 18px}.fp-ear-track-grid{grid-template-columns:minmax(0,1fr)}.fp-ear-quick-stats{grid-template-columns:repeat(2,minmax(0,1fr))}.fp-skill-pair-grid{grid-template-columns:minmax(0,1fr)}}@media (width<=480px){.fp-ear-choice-grid{grid-template-columns:minmax(0,1fr)}}@media (width<=767px){.fp-toolbar-row2{-webkit-overflow-scrolling:touch;overscroll-behavior-x:contain;scrollbar-width:none;flex-wrap:nowrap;align-items:center;padding-bottom:10px;overflow-x:auto}.fp-toolbar-row2::-webkit-scrollbar{display:none}.fp-box-group{border-right:1px solid var(--border-color);flex-direction:row;flex-shrink:0;align-items:center;padding-right:8px}.fp-box-group:last-of-type{border-right:none;padding-right:0}.fp-box-group .btn-group{gap:5px}.fp-box-group .btn-group .fp-btn{border-left-width:1px!important;border-radius:15px!important}.fp-box-group>.fp-btn{border-radius:15px!important}.fp-box-label-full{display:none}.fp-box-label-short{display:inline}}.fp-burger-icon{pointer-events:none;flex-direction:column;justify-content:space-between;width:22px;height:16px;display:flex;position:relative}.fp-burger-icon span{transform-origin:50%;background:currentColor;border-radius:2px;width:100%;height:2px;transition:transform .28s cubic-bezier(.4,0,.2,1),opacity .28s cubic-bezier(.4,0,.2,1);display:block}.fp-burger-icon.is-open span:first-child{transform:translateY(7px)rotate(45deg)}.fp-burger-icon.is-open span:nth-child(2){opacity:0;transform:scaleX(0)}.fp-burger-icon.is-open span:nth-child(3){transform:translateY(-7px)rotate(-45deg)}.string-toggle-btn{width:26px;height:44px;font-size:.8rem;font-weight:700;font-family:var(--font-sans);border:1px solid var(--border-color);cursor:pointer;-webkit-user-select:none;user-select:none;border-radius:5px;justify-content:center;align-items:center;padding:0;line-height:1;transition:background .1s,color .1s;display:flex;position:absolute}.string-toggle-btn.on{background:var(--btn-active-bg);color:var(--btn-active-fg);border-color:var(--btn-active-bg)}.string-toggle-btn.off{background:var(--btn-bg);color:var(--text-primary);opacity:.55}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}