:root{--bg-darkest:#07090e;--bg-primary:#0d1117;--bg-surface:#151b23;--bg-surface-elevated:#1d2430;--bg-glass:#151b23bf;--border-subtle:#ffffff14;--border-medium:#ffffff29;--border-glow:#10b98166;--text-primary:#f0f6fc;--text-secondary:#8b949e;--text-muted:#586069;--text-inverse:#0d1117;--accent-emerald:#10b981;--accent-emerald-glow:#10b98140;--accent-cyan:#06b6d4;--accent-cyan-glow:#06b6d440;--accent-amber:#f59e0b;--accent-amber-glow:#f59e0b40;--accent-purple:#a855f7;--accent-crimson:#ef4444;--font-sans:"Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono:"JetBrains Mono", "Fira Code", monospace;--ease-spring:cubic-bezier(.175, .885, .32, 1.275);--ease-smooth:cubic-bezier(.4, 0, .2, 1);--shadow-sm:0 2px 4px #0006;--shadow-md:0 6px 18px #00000080;--shadow-glow:0 0 24px #10b98133}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-darkest);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;line-height:1.5;overflow-x:hidden}#app{flex-direction:column;max-width:1300px;min-height:100vh;margin:0 auto;padding:12px 16px 36px;display:flex}.app-header{background:var(--bg-surface);border:1px solid var(--border-subtle);box-shadow:var(--shadow-sm);border-radius:16px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-bottom:16px;padding:12px 20px;display:flex}.header-brand{align-items:center;gap:12px;display:flex}.brand-icon{background:linear-gradient(135deg, var(--accent-emerald), var(--accent-cyan));width:44px;height:44px;color:var(--text-inverse);box-shadow:0 0 16px var(--accent-emerald-glow);border-radius:12px;justify-content:center;align-items:center;display:flex}.brand-name{letter-spacing:-.02em;background:linear-gradient(135deg,#fff 30%,#8b949e 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;font-size:1.35rem;font-weight:800}.brand-tagline{color:var(--text-secondary);font-size:.75rem;font-weight:500;display:block}.header-actions{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.metronome-bar{background:var(--bg-surface-elevated);border:1px solid var(--border-subtle);border-radius:10px;align-items:center;gap:4px;padding:4px;display:flex}.metro-btn{color:var(--text-primary);font-family:var(--font-mono);cursor:pointer;background:0 0;border:none;border-radius:6px;align-items:center;gap:8px;padding:6px 10px;font-size:.82rem;font-weight:700;transition:background .2s;display:flex}.metro-btn:hover{background:#ffffff0d}.metro-pulse-dot{background:var(--text-muted);border-radius:50%;width:10px;height:10px;transition:transform 80ms,background-color 80ms}.metro-pulse-dot.pulse{background:var(--accent-emerald);box-shadow:0 0 10px var(--accent-emerald);transform:scale(1.6)}.metro-pulse-dot.accent{background:var(--accent-amber);box-shadow:0 0 14px var(--accent-amber);transform:scale(1.8)}.metro-btn-tap{border:1px solid var(--border-subtle);color:var(--accent-cyan);cursor:pointer;background:#ffffff12;border-radius:6px;padding:6px 10px;font-size:.75rem;font-weight:700;transition:transform .1s,background .2s}.metro-btn-tap:active{background:var(--accent-cyan-glow);transform:scale(.92)}.metro-btn-icon{cursor:pointer;color:var(--text-secondary);background:0 0;border:none;border-radius:6px;padding:6px 8px;font-size:.85rem}.btn-mic{background:var(--bg-surface-elevated);border:1px solid var(--border-subtle);color:var(--text-primary);cursor:pointer;border-radius:10px;align-items:center;gap:8px;padding:8px 14px;font-size:.85rem;font-weight:600;transition:all .2s;display:flex}.btn-mic:hover{border-color:var(--border-medium);background:#ffffff0f}.btn-mic.active{border-color:var(--accent-emerald);background:var(--accent-emerald-glow);color:#a7f3d0}.mic-status-indicator{background:var(--accent-crimson);border-radius:50%;width:8px;height:8px}.btn-mic.active .mic-status-indicator{background:var(--accent-emerald);box-shadow:0 0 8px var(--accent-emerald);animation:2s infinite pulse-ring}@keyframes pulse-ring{0%{opacity:.8;transform:scale(.95)}50%{opacity:1;transform:scale(1.3)}to{opacity:.8;transform:scale(.95)}}.btn-icon{background:var(--bg-surface-elevated);border:1px solid var(--border-subtle);width:40px;height:40px;color:var(--text-primary);cursor:pointer;border-radius:10px;justify-content:center;align-items:center;transition:all .2s;display:flex;position:relative}.btn-icon:hover{border-color:var(--accent-cyan);color:var(--accent-cyan)}.badge{background:var(--accent-cyan);color:var(--text-inverse);border-radius:8px;padding:2px 5px;font-size:.65rem;font-weight:800;position:absolute;top:-4px;right:-4px}.nav-tabs{border-bottom:1px solid var(--border-subtle);gap:10px;margin-bottom:20px;padding-bottom:8px;display:flex}.nav-tab{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:10px;align-items:center;gap:8px;padding:10px 18px;font-size:.95rem;font-weight:600;transition:all .2s;display:flex}.nav-tab:hover{color:var(--text-primary);background:#ffffff0a}.nav-tab.active{color:var(--accent-emerald);background:var(--accent-emerald-glow);border:1px solid var(--border-glow)}.tab-panel{display:none}.tab-panel.active{animation:fadeIn .25s var(--ease-smooth);display:block}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.live-hero-grid{grid-template-columns:1.6fr 1.1fr;gap:18px;margin-bottom:18px;display:grid}@media (width<=860px){.live-hero-grid{grid-template-columns:1fr}}.chord-glance-card{background:var(--bg-surface);border:1px solid var(--border-subtle);box-shadow:var(--shadow-md);border-radius:20px;flex-direction:column;justify-content:space-between;padding:24px;display:flex;position:relative;overflow:hidden}.chord-glance-card:before{content:"";background:linear-gradient(90deg, var(--accent-emerald), var(--accent-cyan));height:4px;position:absolute;top:0;left:0;right:0}.card-status-row{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.detection-label{letter-spacing:.08em;color:var(--text-secondary);font-size:.75rem;font-weight:700}.confidence-pill{font-family:var(--font-mono);background:var(--bg-surface-elevated);color:var(--text-secondary);border:1px solid var(--border-subtle);border-radius:20px;padding:4px 10px;font-size:.75rem;font-weight:700}.confidence-pill.confident{background:var(--accent-emerald-glow);color:var(--accent-emerald);border-color:var(--accent-emerald)}.detected-chord-name{letter-spacing:-.04em;color:#fff;text-shadow:0 0 24px #ffffff26;margin:8px 0;font-size:clamp(4rem,10vw,6.5rem);font-weight:900;line-height:1;transition:color .15s,transform .15s}.detected-chord-name.confirmed{color:var(--accent-emerald);text-shadow:0 0 35px var(--accent-emerald-glow);transform:scale(1.02)}.detected-chord-full{color:var(--text-secondary);margin-bottom:20px;font-size:1.15rem;font-weight:500}.sustain-meter-container{background:var(--bg-surface-elevated);border-radius:3px;width:100%;height:6px;margin-bottom:8px;overflow:hidden}.sustain-meter-bar{background:linear-gradient(90deg, var(--accent-cyan), var(--accent-emerald));border-radius:3px;width:0%;height:100%;transition:width 50ms linear}.sustain-label{color:var(--text-muted);justify-content:space-between;margin-bottom:18px;font-size:.75rem;display:flex}.test-strum-bar{border-top:1px solid var(--border-subtle);flex-wrap:wrap;align-items:center;gap:8px;padding-top:14px;display:flex}.test-label{color:var(--text-muted);font-size:.75rem;font-weight:600}.btn-strum-chip{background:var(--bg-surface-elevated);border:1px solid var(--border-subtle);color:var(--text-primary);font-family:var(--font-mono);cursor:pointer;border-radius:8px;padding:6px 12px;font-size:.85rem;font-weight:700;transition:all .15s}.btn-strum-chip:hover{border-color:var(--accent-cyan);color:var(--accent-cyan);background:#ffffff1a}.btn-strum-chip:active{transform:scale(.94)}.fretboard-card{background:var(--bg-surface);border:1px solid var(--border-subtle);box-shadow:var(--shadow-md);border-radius:20px;flex-direction:column;padding:20px;display:flex}.card-header-compact{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.compact-title{letter-spacing:.06em;color:var(--text-secondary);font-size:.75rem;font-weight:700}.chord-sub-badge{color:var(--accent-cyan);background:var(--accent-cyan-glow);border-radius:6px;padding:2px 8px;font-size:.8rem;font-weight:700}.fretboard-render-box{flex:1;justify-content:center;align-items:center;min-height:200px;display:flex}.chord-diagram-svg{width:100%;max-width:220px;height:auto;color:var(--text-secondary)}.chord-dot{fill:var(--accent-emerald);filter:drop-shadow(0 0 6px var(--accent-emerald-glow))}.finger-num{font-family:var(--font-mono);fill:#000;font-size:9px;font-weight:800}.string-marker{font-family:var(--font-mono);font-size:13px;font-weight:700}.string-marker.mute{fill:var(--accent-crimson)}.string-marker.open{stroke:var(--accent-cyan)}.fret-num{font-family:var(--font-mono);fill:var(--accent-amber);font-size:11px;font-weight:700}.fretboard-hint{color:var(--text-muted);justify-content:center;gap:16px;margin-top:10px;font-size:.75rem;display:flex}.fretboard-empty{color:var(--text-muted);text-align:center;font-size:.9rem}.audio-analysis-grid{grid-template-columns:1.2fr 1fr;gap:18px;display:grid}@media (width<=860px){.audio-analysis-grid{grid-template-columns:1fr}}.spectrum-card,.chromagram-card{background:var(--bg-surface);border:1px solid var(--border-subtle);box-shadow:var(--shadow-sm);border-radius:20px;padding:20px}.title-with-meter{justify-content:space-between;align-items:center;width:100%;display:flex}.live-rms-meter{align-items:center;gap:8px;width:110px;display:flex}.rms-fill{background:var(--text-muted);border-radius:3px;flex:1;width:0%;height:6px;transition:width 50ms linear}.rms-fill.active{background:linear-gradient(90deg, var(--accent-emerald), var(--accent-amber));box-shadow:0 0 8px var(--accent-emerald-glow)}.rms-text{font-family:var(--font-mono);color:var(--text-secondary);min-width:30px;font-size:.75rem}.canvas-wrapper{background:var(--bg-darkest);border:1px solid var(--border-subtle);border-radius:12px;width:100%;height:120px;margin-bottom:12px;position:relative;overflow:hidden}.spectrum-canvas{width:100%;height:100%;display:block}.controls-row-compact{grid-template-columns:1fr 1fr;gap:14px;display:grid}.btn-calibrate{border:1px solid var(--accent-cyan);color:var(--accent-cyan);cursor:pointer;background:#06b6d41a;border-radius:8px;grid-column:1/-1;justify-content:center;align-items:center;gap:8px;padding:8px 14px;font-size:.82rem;font-weight:700;transition:all .2s;display:inline-flex}.btn-calibrate:hover{box-shadow:0 0 12px var(--accent-cyan-glow);background:#06b6d438}.btn-calibrate.calibrating{border-color:var(--accent-amber);color:#fef08a;background:#f59e0b40;animation:1s infinite pulse-ring}.slider-group label{color:var(--text-secondary);justify-content:space-between;margin-bottom:6px;font-size:.75rem;display:flex}.slider-group label strong{font-family:var(--font-mono);color:var(--text-primary)}input[type=range]{background:var(--bg-surface-elevated);-webkit-appearance:none;cursor:pointer;border-radius:3px;outline:none;width:100%;height:6px}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;background:var(--accent-cyan);width:16px;height:16px;box-shadow:0 0 8px var(--accent-cyan-glow);cursor:pointer;border-radius:50%}.chroma-bars-track{background:var(--bg-darkest);border:1px solid var(--border-subtle);border-radius:12px;grid-template-columns:repeat(12,1fr);gap:6px;height:120px;margin-bottom:12px;padding:10px 8px 6px;display:grid}.chroma-col{flex-direction:column;align-items:center;height:100%;display:flex}.chroma-bar-track{background:#ffffff08;border-radius:4px;flex:1;align-items:flex-end;width:100%;display:flex;position:relative;overflow:hidden}.chroma-bar-fill{background:linear-gradient(180deg, var(--accent-cyan), #0891b2);border-radius:3px 3px 0 0;width:100%;height:4%;transition:height 50ms linear}.chroma-bar-fill.peak{background:linear-gradient(180deg, var(--accent-amber), var(--accent-emerald));box-shadow:0 0 10px var(--accent-amber-glow)}.chroma-label{font-family:var(--font-mono);color:var(--text-muted);margin-top:4px;font-size:.68rem;font-weight:600}.top-candidates-row{align-items:center;gap:8px;font-size:.75rem;display:flex}.cand-label{color:var(--text-muted)}.cand-item{font-family:var(--font-mono);color:var(--text-secondary);background:var(--bg-surface-elevated);border-radius:4px;padding:2px 6px;font-weight:600}.practice-config-bar{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:16px;flex-wrap:wrap;align-items:flex-end;gap:14px 18px;margin-bottom:20px;padding:16px 20px;display:flex}.config-item{flex-direction:column;flex:200px;gap:6px;min-width:190px;display:flex}.config-item label{color:var(--text-secondary);letter-spacing:.04em;white-space:nowrap;font-size:.75rem;font-weight:700}#guidedPresetWrapper{flex:1.4 260px;min-width:230px}#strictnessWrapper{flex:1.1 210px;min-width:190px}.toggle-group{background:var(--bg-surface-elevated);border:1px solid var(--border-subtle);border-radius:8px;gap:2px;width:100%;padding:3px;display:flex}.toggle-btn{min-width:0;color:var(--text-secondary);cursor:pointer;white-space:nowrap;text-align:center;text-overflow:ellipsis;background:0 0;border:none;border-radius:6px;flex:1 1 0;padding:7px 8px;font-size:.78rem;font-weight:600;transition:all .2s;overflow:hidden}.toggle-btn.active{background:var(--accent-emerald-glow);color:var(--accent-emerald);border:1px solid var(--border-glow)}.styled-select,.styled-input{background:var(--bg-surface-elevated);border:1px solid var(--border-subtle);color:var(--text-primary);font-family:var(--font-sans);cursor:pointer;text-overflow:ellipsis;white-space:nowrap;border-radius:8px;outline:none;width:100%;padding:8px 12px;font-size:.88rem;font-weight:600;transition:border-color .2s;overflow:hidden}.styled-select:focus,.styled-input:focus{border-color:var(--accent-cyan)}.pattern-selector-row{align-items:center;gap:8px;width:100%;display:flex}.pattern-selector-row select{flex:auto;min-width:0}.pattern-selector-row .btn-secondary-action{flex-shrink:0;padding:8px 12px;font-size:.82rem}.action-slot{flex:100%;width:100%;margin-top:4px;display:flex}.btn-primary-action{background:linear-gradient(135deg, var(--accent-emerald), #059669);color:#fff;cursor:pointer;box-shadow:0 0 16px var(--accent-emerald-glow);border:none;border-radius:10px;justify-content:center;align-items:center;gap:8px;width:100%;padding:10px 22px;font-size:.92rem;font-weight:700;transition:transform .15s,box-shadow .15s;display:inline-flex}.btn-primary-action:hover{transform:translateY(-1px);box-shadow:0 0 24px #10b98166}.btn-danger-action{background:linear-gradient(135deg, var(--accent-crimson), #dc2626);color:#fff;cursor:pointer;border:none;border-radius:10px;justify-content:center;align-items:center;gap:8px;width:100%;padding:10px 22px;font-size:.92rem;font-weight:700;display:inline-flex;box-shadow:0 0 16px #ef44444d}.btn-secondary-action{background:var(--bg-surface-elevated);border:1px solid var(--border-subtle);color:var(--text-primary);cursor:pointer;white-space:nowrap;border-radius:8px;padding:8px 14px;font-size:.85rem;font-weight:600}.btn-secondary-action:hover{border-color:var(--border-medium);background:#ffffff14}.countdown-overlay{border:2px solid var(--accent-emerald);background:#0d1117f2;border-radius:20px;flex-direction:column;justify-content:center;align-items:center;margin-bottom:20px;padding:40px;animation:1s infinite alternate pulse-border;display:flex}@keyframes pulse-border{0%{border-color:var(--accent-cyan)}to{border-color:var(--accent-emerald)}}.countdown-number{color:var(--accent-emerald);text-shadow:0 0 30px var(--accent-emerald-glow);font-size:7rem;font-weight:900;line-height:1}.countdown-sub{color:var(--text-secondary);font-size:1.2rem;font-weight:600}.practice-hud-grid{grid-template-columns:1.6fr 1fr;gap:18px;margin-bottom:18px;display:grid}@media (width<=860px){.practice-hud-grid{grid-template-columns:1fr}}.target-runway-card{background:var(--bg-surface);border:1px solid var(--border-subtle);box-shadow:var(--shadow-md);border-radius:20px;padding:24px;position:relative}.runway-header{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.session-timer-badge{font-family:var(--font-mono);background:var(--bg-surface-elevated);border:1px solid var(--border-subtle);color:var(--accent-amber);border-radius:10px;padding:4px 12px;font-size:1.3rem;font-weight:800}.target-hero-split{grid-template-columns:1fr auto;align-items:center;gap:20px;padding:8px 0;display:grid}@media (width<=680px){.target-hero-split{grid-template-columns:1fr;justify-items:center}}.active-target-display{text-align:center;flex-direction:column;align-items:center;display:flex}.target-chord-huge{color:var(--accent-cyan);text-shadow:0 0 35px var(--accent-cyan-glow);letter-spacing:-.04em;font-size:clamp(4.5rem,10vw,6.5rem);font-weight:900;line-height:1;animation:2s ease-in-out infinite glow-pulse}@keyframes glow-pulse{0%,to{transform:scale(1)}50%{transform:scale(1.03)}}.target-chord-hint{color:var(--text-secondary);margin-top:6px;font-size:.95rem}.target-fingering-textual{flex-direction:column;align-items:center;gap:6px;margin-top:12px;display:flex}.fret-sequence-badge{font-family:var(--font-mono);color:var(--accent-cyan);background:var(--bg-surface-elevated);border:1px solid var(--border-subtle);letter-spacing:.05em;border-radius:8px;padding:4px 12px;font-size:.85rem;font-weight:700}.finger-legend-badge{color:var(--text-secondary);max-width:340px;font-size:.8rem;font-weight:500;line-height:1.35}.target-fretboard-box{background:var(--bg-surface-elevated);border:1px solid var(--border-subtle);min-width:170px;box-shadow:var(--shadow-sm);border-radius:16px;flex-direction:column;align-items:center;padding:12px 14px 10px;display:flex}.target-fretboard-header{justify-content:space-between;align-items:center;gap:8px;width:100%;margin-bottom:4px;display:flex}.fretboard-mini-title{color:var(--text-muted);letter-spacing:.06em;font-size:.65rem;font-weight:800}.voicing-pill{color:var(--accent-emerald);background:var(--accent-emerald-glow);white-space:nowrap;border-radius:4px;padding:2px 6px;font-size:.68rem;font-weight:700}.target-fretboard-svg-wrap{justify-content:center;align-items:center;width:140px;height:155px;display:flex}.target-fretboard-svg-wrap .chord-diagram-svg{color:#94a3b8;width:140px;height:155px}.voicing-variants-row{flex-wrap:wrap;justify-content:center;gap:4px;margin-top:6px;display:flex}.btn-variant-pill{background:var(--bg-surface);border:1px solid var(--border-subtle);color:var(--text-secondary);cursor:pointer;border-radius:4px;padding:2px 6px;font-size:.68rem;font-weight:600;transition:all .15s}.btn-variant-pill:hover,.btn-variant-pill.active{background:var(--accent-cyan-glow);color:var(--accent-cyan);border-color:var(--accent-cyan)}.sequence-track{flex-wrap:wrap;justify-content:center;align-items:center;gap:10px;margin:18px 0;display:flex}.seq-node{background:var(--bg-surface-elevated);border:1px solid var(--border-subtle);min-width:48px;height:48px;font-family:var(--font-mono);color:var(--text-secondary);border-radius:12px;justify-content:center;align-items:center;padding:0 12px;font-size:1.1rem;font-weight:700;transition:all .2s;display:flex}.seq-node.active{background:var(--accent-cyan-glow);border-color:var(--accent-cyan);color:#fff;box-shadow:0 0 16px var(--accent-cyan-glow);transform:scale(1.12)}.seq-arrow{color:var(--text-muted);font-weight:700}.pace-delta-banner{background:var(--bg-surface-elevated);border:1px solid var(--border-subtle);color:var(--text-secondary);border-radius:12px;justify-content:center;align-items:center;gap:10px;padding:10px 16px;font-size:.9rem;font-weight:600;display:flex}.pace-delta-banner.faster{background:var(--accent-emerald-glow);border-color:var(--accent-emerald);color:#6ee7b7}.pace-delta-banner.slower{background:var(--accent-amber-glow);border-color:var(--accent-amber);color:#fde68a}.practice-metrics-card{grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:12px;display:grid}.metric-box{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:16px;flex-direction:column;justify-content:center;padding:16px 14px;display:flex}.metric-val{font-family:var(--font-mono);font-size:clamp(1.6rem,3.5vw,2.2rem);font-weight:800;line-height:1.1}.metric-title{color:var(--text-secondary);margin-top:4px;font-size:.72rem;font-weight:600}.text-neon-emerald{color:var(--accent-emerald)}.text-neon-cyan{color:var(--accent-cyan)}.text-neon-amber{color:var(--accent-amber)}.text-neon-purple{color:var(--accent-purple)}.transitions-log-card{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:16px;padding:18px 20px}.log-header{color:var(--text-secondary);justify-content:space-between;margin-bottom:12px;font-size:.85rem;font-weight:700;display:flex}.log-list{flex-direction:column;gap:8px;max-height:200px;display:flex;overflow-y:auto}.log-empty{color:var(--text-muted);text-align:center;padding:16px;font-size:.85rem}.log-item{background:var(--bg-surface-elevated);border-radius:8px;justify-content:space-between;align-items:center;gap:12px;padding:8px 12px;font-size:.85rem;display:flex}.log-item-left{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.log-chord-transition{font-family:var(--font-mono);color:var(--text-primary);font-weight:700}.log-acc-badge{font-family:var(--font-mono);border-radius:4px;padding:2px 6px;font-size:.72rem;font-weight:700}.log-acc-badge.acc-high{background:var(--accent-emerald-glow);color:var(--accent-emerald);border:1px solid #10b98159}.log-acc-badge.acc-mid{background:var(--accent-amber-glow);color:var(--accent-amber);border:1px solid #f59e0b59}.log-acc-badge.acc-low{background:var(--accent-crimson-glow);color:var(--accent-crimson);border:1px solid #ef444459}.log-heard-badge{color:var(--text-muted);font-size:.74rem}.log-duration{font-family:var(--font-mono);color:var(--accent-cyan);white-space:nowrap;font-weight:600}.modal-backdrop{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:1000;animation:fadeIn .2s var(--ease-smooth);background:#07090ed9;justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.modal-backdrop.hidden{display:none}.modal-dialog{background:var(--bg-surface);border:1px solid var(--border-medium);width:100%;max-width:520px;animation:slideUp .25s var(--ease-spring);border-radius:20px;overflow:hidden;box-shadow:0 12px 36px #000000b3}.modal-dialog.large{max-width:720px}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)scale(.96)}to{opacity:1;transform:translateY(0)scale(1)}}.modal-banner.celebration{border-bottom:1px solid var(--border-subtle);text-align:center;background:linear-gradient(135deg,#10b98133,#06b6d433);padding:24px}.celebration-icon{margin-bottom:8px;font-size:2.8rem}.modal-header{border-bottom:1px solid var(--border-subtle);justify-content:space-between;align-items:center;padding:16px 20px;display:flex}.btn-close{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;font-size:1.5rem;line-height:1}.modal-body{padding:20px}.modal-body.scrollable{max-height:60vh;overflow-y:auto}.record-badge-alert{background:linear-gradient(90deg, var(--accent-amber), var(--accent-emerald));color:#000;text-align:center;box-shadow:0 0 16px var(--accent-amber-glow);border-radius:8px;margin-bottom:16px;padding:8px;font-size:.85rem;font-weight:800}.summary-stats-grid{grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:12px;margin-bottom:20px;display:grid}.summary-stat-cell{background:var(--bg-surface-elevated);text-align:center;border-radius:12px;padding:14px}.cell-val{font-family:var(--font-mono);font-size:1.8rem;font-weight:800;display:block}.cell-label{color:var(--text-secondary);font-size:.75rem}.session-name-input-group{flex-direction:column;gap:6px;margin-bottom:20px;display:flex}.session-name-input-group label{color:var(--text-secondary);font-size:.8rem;font-weight:600}.modal-actions-row{justify-content:flex-end;gap:12px;display:flex}.builder-instructions{color:var(--text-secondary);margin-bottom:16px;font-size:.85rem}.sequence-chips-container{background:var(--bg-surface-elevated);border:1px dashed var(--border-medium);border-radius:10px;flex-wrap:wrap;gap:8px;min-height:48px;margin-bottom:16px;padding:10px;display:flex}.removable-chip{background:var(--accent-cyan-glow);border:1px solid var(--accent-cyan);color:#fff;font-family:var(--font-mono);cursor:pointer;border-radius:8px;align-items:center;gap:6px;padding:4px 10px;font-size:.85rem;font-weight:700;display:flex}.palette-header-row{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;margin-bottom:10px;display:flex}.palette-filter-tabs{background:var(--bg-surface-elevated);border:1px solid var(--border-subtle);border-radius:8px;flex-wrap:wrap;gap:2px;padding:2px;display:flex}.palette-tab{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:6px;padding:4px 8px;font-size:.72rem;font-weight:700;transition:all .15s}.palette-tab.active{background:var(--accent-cyan-glow);color:var(--accent-cyan);border:1px solid var(--accent-cyan)}.custom-chord-input-row{gap:8px;margin-bottom:12px;display:flex}.custom-chord-input-row input{flex:1;font-size:.85rem}.palette-grid{flex-wrap:wrap;gap:8px;max-height:200px;margin-bottom:20px;padding-right:4px;display:flex;overflow-y:auto}.palette-chip{background:var(--bg-surface-elevated);border:1px solid var(--border-subtle);color:var(--text-primary);font-family:var(--font-mono);cursor:pointer;border-radius:8px;padding:6px 12px;font-size:.85rem;font-weight:700}.palette-chip:hover{border-color:var(--accent-emerald);color:var(--accent-emerald)}.history-list-box{flex-direction:column;gap:10px;display:flex}.history-card{background:var(--bg-surface-elevated);border:1px solid var(--border-subtle);border-radius:12px;justify-content:space-between;align-items:center;gap:14px;padding:14px 16px;display:flex}.history-card.personal-best{border-color:var(--accent-amber);background:linear-gradient(90deg, #f59e0b14, var(--bg-surface-elevated))}.history-details{flex:1}.history-name-row{align-items:center;gap:8px;margin-bottom:4px;display:flex}.history-session-name{font-size:.95rem;font-weight:700}.pb-badge{background:var(--accent-amber);color:#000;border-radius:4px;padding:2px 6px;font-size:.65rem;font-weight:800}.history-meta{color:var(--text-muted);font-size:.75rem}.history-stats-preview{font-family:var(--font-mono);gap:16px;font-size:.85rem;display:flex}.history-actions{align-items:center;gap:8px;display:flex}.btn-subtle{border:1px solid var(--border-subtle);color:var(--text-secondary);cursor:pointer;background:0 0;border-radius:6px;padding:4px 10px;font-size:.8rem;font-weight:600}.btn-subtle:hover{color:var(--text-primary);border-color:var(--border-medium)}.text-danger{color:var(--accent-crimson)}.hidden{display:none!important}.hidden-file-input{display:none}@media (width<=900px){.practice-config-bar{gap:12px;padding:14px 16px}.config-item{flex:45%;min-width:160px}#guidedPresetWrapper,.action-slot{flex:100%}}@media (width<=600px){.practice-config-bar{flex-direction:column;align-items:stretch}.config-item{flex:100%;width:100%}.action-slot{width:100%}}