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auto;padding:0 1.5rem}.badge{background:#ffffff1a;border:1px solid #ffffff26;border-radius:50px;align-items:center;gap:8px;margin-bottom:1.5rem;padding:8px 20px;font-size:.95rem;display:inline-flex}.hero-title{margin-bottom:1.5rem;font-size:4.5rem;font-weight:800;line-height:1.1}@media (width<=768px){.hero-title{font-size:3.2rem}}@media (width<=480px){.hero-title{font-size:2.2rem}}.gradient-text{background:linear-gradient(90deg,#05f,#00d4ff);-webkit-text-fill-color:transparent;-webkit-background-clip:text}.hero-subtitle{color:var(--text-muted);max-width:620px;margin:0 auto 2.5rem;font-size:1.35rem}@media (width<=768px){.hero-subtitle{margin-bottom:2rem;font-size:1.1rem}}.hero-buttons{flex-wrap:wrap;justify-content:center;gap:1rem;margin-bottom:2rem;display:flex}.trusted{color:#89a;font-size:1rem}.services-grid{text-align:left;grid-template-columns:repeat(auto-fit,minmax(min(100%,250px),1fr));gap:30px;max-width:1200px;margin:60px auto 0;display:grid}.service-card{background:var(--light);border:1px solid #0000000d;border-radius:20px;padding:30px;box-shadow:0 10px 30px #0000000d}@media (width<=768px){.service-card{padding:20px}}.service-card .service-icon{background:-webkit-linear-gradient(90deg,#05f,#00d4ff);-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin-bottom:15px;font-size:2.5rem;display:inline-block}.service-card h3{margin-bottom:10px;font-size:1.4rem}.service-card p{color:var(--text-muted);font-size:.95rem}.tools-section{background:var(--light);padding:100px 20px}@media (width<=768px){.tools-section{padding:60px 15px}}.section-title{text-align:center;margin-bottom:4rem;font-size:2.8rem;font-weight:700}@media (width<=768px){.section-title{margin-bottom:2rem;font-size:2rem}}.tools-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr));gap:2rem;max-width:1200px;margin:0 auto;display:grid}.tool-card{background:var(--light);border:1px solid #0000000d;border-radius:24px;padding:2.5rem;transition:all .4s;box-shadow:0 10px 30px #0000000d}@media (width<=768px){.tool-card{padding:1.5rem}}.tool-card:hover{border-color:var(--primary);transform:translateY(-8px);box-shadow:0 15px 35px #0055ff1a}.tool-card .tool-icon{margin-bottom:1.5rem;font-size:3.5rem}.tool-card h3{margin-bottom:.8rem;font-size:1.6rem}.tool-card p{color:var(--text-muted)}.footer{text-align:center;color:#666;border-top:1px solid #ffffff14;padding:3rem}.wave-bg .converter-container{flex-direction:column;justify-content:flex-start;gap:3rem;padding-top:120px}.tool-seo-section{text-align:left;flex-direction:column;gap:2.5rem;width:100%;max-width:800px;margin:0 auto 3rem;padding:0 20px;display:flex}.tool-seo-section .seo-card{background:var(--light);border:1px solid #0000000d;border-radius:20px;padding:2.5rem;box-shadow:0 10px 30px #0000000a}@media (width<=768px){.tool-seo-section .seo-card{padding:1.75rem}}.tool-seo-section h2{color:var(--text-main);align-items:center;gap:10px;margin-bottom:1.5rem;font-size:1.8rem;font-weight:700;display:flex}.tool-seo-section h2:after{content:"";background:#00000014;flex:1;height:1px;margin-left:10px}@media (width<=768px){.tool-seo-section h2{font-size:1.4rem}}.tool-seo-section h3{color:var(--text-main);margin-top:1.5rem;margin-bottom:.75rem;font-size:1.3rem;font-weight:600}.tool-seo-section p{color:var(--text-muted);margin-bottom:1.25rem;font-size:1.05rem;line-height:1.7}.tool-seo-section p:last-child{margin-bottom:0}.tool-seo-section .features-list{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.5rem;margin-top:1.5rem;margin-bottom:1.5rem;display:grid}.tool-seo-section .features-list .feature-item{background:var(--dark);border:1px solid #00000005;border-radius:12px;padding:1.5rem}.tool-seo-section .features-list .feature-item h4{color:var(--text-main);align-items:center;gap:8px;margin-bottom:.5rem;font-size:1.1rem;font-weight:600;display:flex}.tool-seo-section .features-list .feature-item p{color:var(--text-muted);margin-bottom:0;font-size:.95rem;line-height:1.5}.tool-seo-section .steps-list{flex-direction:column;gap:1.25rem;margin-top:1.5rem;display:flex}.tool-seo-section .steps-list .step-item{align-items:flex-start;gap:1rem;display:flex}.tool-seo-section .steps-list .step-item .step-number{width:32px;height:32px;color:var(--primary);background:#0088cc1a;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:.95rem;font-weight:700;display:flex}.tool-seo-section .steps-list .step-item .step-text h4{color:var(--text-main);margin-bottom:.25rem;font-size:1.05rem;font-weight:600}.tool-seo-section .steps-list .step-item .step-text p{color:var(--text-muted);margin-bottom:0;font-size:.95rem}.tool-seo-section .faq-list{flex-direction:column;gap:1.5rem;display:flex}.tool-seo-section .faq-list .faq-item{border-bottom:1px solid #0000000d;padding-bottom:1.25rem}.tool-seo-section .faq-list .faq-item:last-child{border-bottom:none;padding-bottom:0}.tool-seo-section .faq-list .faq-item h4{color:var(--text-main);margin-bottom:.5rem;font-size:1.1rem;font-weight:600}.tool-seo-section .faq-list .faq-item p{color:var(--text-muted);margin-bottom:0;font-size:.95rem}.control-group{margin-bottom:15px}.control-group label{color:var(--text-main);justify-content:space-between;margin-bottom:8px;font-size:.95rem;font-weight:500;display:flex}.control-group input[type=range]{width:100%;accent-color:var(--primary)}:root{--primary:#08c;--secondary:#f36;--dark:#f8f9fa;--dark-glass:#ffffffd9;--gray:#e9ecef;--light:#fff;--nav-bg:#fffffff2;--font-main:"Inter", system-ui, sans-serif;--text-main:#2b2b2b;--text-muted:#6c757d}.converter-container{background:var(--dark);justify-content:center;align-items:center;min-height:100vh;padding:100px 20px 60px;display:flex}.converter-card{background:var(--light);text-align:center;border:1px solid #0000000d;border-radius:24px;width:100%;max-width:520px;padding:50px 40px;box-shadow:0 15px 40px #00000014}.converter-title{color:var(--text-main);margin-bottom:12px;font-size:2.4rem}.converter-subtitle{color:var(--text-muted);margin-bottom:40px;font-size:1.1rem}.upload-area{background:#fdfdfd;border:2px dashed #08c6;border-radius:16px;margin-bottom:30px;padding:50px 20px;transition:all .3s}.upload-area:hover{border-color:var(--primary);background:#0088cc08}.file-input{display:none}.upload-label{cursor:pointer;color:var(--text-muted);flex-direction:column;align-items:center;gap:12px;font-size:1.1rem;display:flex}.upload-icon{font-size:3.5rem}.controls-area{text-align:left;margin-top:20px;margin-bottom:20px}.ai-loading-box{text-align:center;background:#00000005;border-radius:12px;margin-top:20px;padding:15px}.progress-bar-bg{background:#0000001a;border-radius:10px;width:100%;height:8px;margin:10px 0;overflow:hidden}.progress-bar-fill{border-radius:10px;height:100%;transition:width .3s}.control-hint{color:var(--text-muted);margin-top:6px;font-size:.85rem}.convert-btn{color:#fff;cursor:pointer;background:linear-gradient(90deg,#08c,#00d4ff);border:none;border-radius:9999px;width:100%;margin-top:10px;padding:18px;font-size:1.1rem;font-weight:600;transition:all .3s;box-shadow:0 4px 15px #0088cc4d}.convert-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #08c6}.convert-btn:disabled{opacity:.7;cursor:not-allowed}.reset-btn{width:100%;color:var(--text-main);cursor:pointer;background:0 0;border:1px solid #0000001a;border-radius:9999px;margin-top:15px;padding:14px;font-weight:500;transition:all .3s}.reset-btn:hover{background:#00000008}.error-message{color:#d32f2f;text-align:center;background:#d32f2f1a;border-radius:8px;margin:15px 0;padding:12px}.success-area{text-align:left;background:#4ade800d;border:1px solid #4ade8033;border-radius:16px;margin-top:20px;padding:20px}.success-text{color:#166534;text-align:center;margin-bottom:20px;font-size:1.2rem;font-weight:600}.mono-to-stereo-container{color:#f8fafc;background-color:#0f172a;min-height:100vh;padding:100px 20px 60px;font-family:Inter,system-ui,-apple-system,sans-serif;position:relative;overflow:hidden}.mono-to-stereo-container:before,.mono-to-stereo-container:after{content:"";filter:blur(140px);z-index:0;opacity:.25;pointer-events:none;border-radius:50%;width:700px;height:700px;position:absolute}.mono-to-stereo-container:before{background:radial-gradient(circle,#38bdf8,#0000 70%);top:-250px;left:-250px}.mono-to-stereo-container:after{background:radial-gradient(circle,#8b5cf6,#0000 70%);bottom:-250px;right:-250px}.controls-area{text-align:left;background:#0f172a80;border:1px solid #ffffff0d;border-radius:16px;margin-top:20px;padding:20px}.controls-area label{justify-content:space-between;margin-bottom:10px;display:flex}.controls-area label span:first-child{color:#f1f5f9;font-weight:500}.controls-area label span:last-child{color:#38bdf8;font-weight:700}.controls-area input[type=range]{width:100%;margin-bottom:10px}.controls-area p{color:#94a3b8;font-size:.85rem}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.stereo-to-mono-container{color:#f8fafc;background-color:#0f172a;min-height:100vh;padding:100px 20px 60px;font-family:Inter,system-ui,-apple-system,sans-serif;position:relative;overflow:hidden}.stereo-to-mono-container:before,.stereo-to-mono-container:after{content:"";filter:blur(140px);z-index:0;opacity:.25;pointer-events:none;border-radius:50%;width:700px;height:700px;position:absolute}.stereo-to-mono-container:before{background:radial-gradient(circle,#14b8a6,#0000 70%);top:-250px;left:-250px}.stereo-to-mono-container:after{background:radial-gradient(circle,#10b981,#0000 70%);bottom:-250px;right:-250px}.converter-header{z-index:1;text-align:center;margin-bottom:50px;position:relative}.converter-header .icon{filter:drop-shadow(0 0 25px #14b8a666);margin-bottom:20px;font-size:4rem;display:inline-block}.converter-header h1{background:linear-gradient(135deg,#14b8a6,#10b981,#f59e0b);-webkit-text-fill-color:transparent;letter-spacing:-1px;-webkit-background-clip:text;margin-bottom:15px;font-size:3.5rem;font-weight:900}.converter-header p{color:#cbd5e1;max-width:650px;margin:0 auto;font-size:1.25rem;line-height:1.6}.converter-dashboard{z-index:1;max-width:900px;margin:0 auto;position:relative}.results-view{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);text-align:center;background:#1e293b99;border:1px solid #ffffff0d;border-radius:24px;padding:40px;box-shadow:0 20px 40px #0000004d}.results-view .results-header{border-bottom:1px solid #ffffff1a;margin-bottom:30px;padding-bottom:20px}.results-view .convert-btn{color:#fff;cursor:pointer;background:linear-gradient(135deg,#14b8a6,#10b981);border:none;border-radius:30px;margin:10px;padding:15px 30px;font-size:1.1rem;font-weight:700;transition:all .3s;box-shadow:0 10px 20px #14b8a64d}.results-view .convert-btn:hover{transform:translateY(-2px);box-shadow:0 15px 25px #14b8a666}.results-view .convert-btn:disabled{opacity:.7;cursor:not-allowed;transform:none}.results-view .reset-btn{color:#f8fafc;cursor:pointer;background:#ffffff1a;border:none;border-radius:30px;margin:10px;padding:15px 30px;font-size:1.1rem;font-weight:600;transition:all .2s}.results-view .reset-btn:hover{background:#fff3}.results-view .success-text{color:#4ade80;margin-bottom:20px;font-size:1.5rem;font-weight:700}.seo-content-section .seo-grid{grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:32px;margin-bottom:50px;display:grid}.seo-content-section .faq-section{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#1e293b66;border:1px solid #ffffff0d;border-radius:24px;margin-bottom:50px;padding:40px}.seo-content-section .faq-section h3{color:#f8fafc;text-align:center;margin-bottom:30px;font-size:1.8rem}.seo-content-section .faq-section .faq-item{border-bottom:1px solid #ffffff0d;margin-bottom:25px;padding-bottom:25px}.seo-content-section .faq-section .faq-item:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}.seo-content-section .faq-section .faq-item h4{color:#e2e8f0;margin-bottom:10px;font-size:1.2rem}.seo-content-section .faq-section .faq-item p{color:#94a3b8;line-height:1.6}.delay-calculator-card{max-width:1100px!important}.calculator-controls{flex-wrap:wrap;justify-content:center;align-items:flex-end;gap:20px;margin-bottom:30px;display:flex}.calculator-controls .bpm-input-group{flex-direction:column;align-items:flex-start;gap:8px;display:flex}.calculator-controls .bpm-input-group label{color:#fffc;font-size:.9rem;font-weight:500}.calculator-controls .bpm-input-group .bpm-input-wrapper{background:#0a0e1799;border:1px solid #ffffff0f;border-radius:12px;align-items:center;gap:12px;padding:8px;display:flex;box-shadow:inset 0 2px 15px #00000080}.calculator-controls .bpm-input-group .bpm-input-wrapper .bpm-btn{color:#10b981;cursor:pointer;-webkit-user-select:none;user-select:none;background:#10b9810d;border:1px solid #10b9814d;border-radius:10px;justify-content:center;align-items:center;width:48px;height:48px;font-size:1.8rem;font-weight:300;transition:all .2s;display:flex}.calculator-controls .bpm-input-group .bpm-input-wrapper .bpm-btn:hover{color:#34d399;background:#10b98126;border-color:#10b98199;transform:translateY(-1px);box-shadow:0 4px 12px #10b98140}.calculator-controls .bpm-input-group .bpm-input-wrapper .bpm-btn:active{background:#10b98114;transform:translateY(1px)}.calculator-controls .bpm-input-group .bpm-input-wrapper .bpm-input{color:#e2e8f0;text-align:center;letter-spacing:1px;background:0 0;border:none;width:100px;padding:8px 12px;font-family:JetBrains Mono,Fira Code,monospace;font-size:1.8rem;font-weight:500;transition:all .2s}.calculator-controls .bpm-input-group .bpm-input-wrapper .bpm-input:focus{color:#fff;text-shadow:0 0 12px #a777e366;outline:none}.calculator-controls .bpm-input-group .bpm-input-wrapper .bpm-input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.calculator-controls .bpm-input-group .bpm-input-wrapper .bpm-input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.calculator-controls .bpm-input-group .bpm-input-wrapper .bpm-input[type=number]{-moz-appearance:textfield}.results-table-container{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#111827b3;border:1px solid #ffffff1a;border-radius:12px;width:100%;margin-top:20px;overflow-x:auto;box-shadow:0 8px 32px #0000004d}.results-table-container .results-table{border-collapse:separate;border-spacing:0;width:100%;min-width:700px}.results-table-container .results-table th,.results-table-container .results-table td{text-align:left;border-bottom:1px solid #ffffff14;padding:16px 20px}.results-table-container .results-table th{color:#ffffffb3;text-transform:uppercase;letter-spacing:1px;z-index:10;background:#0006;font-size:.85rem;font-weight:600;position:sticky;top:0}.results-table-container .results-table th:first-child{border-top-left-radius:12px}.results-table-container .results-table th:last-child{border-top-right-radius:12px}.results-table-container .results-table td{color:#ffffffe6;font-family:JetBrains Mono,Fira Code,monospace;font-size:1.05rem;transition:color .2s}.results-table-container .results-table tbody tr{transition:all .2s}.results-table-container .results-table tbody tr:nth-child(2n){background:#ffffff05}.results-table-container .results-table tbody tr:hover{background:#ffffff14;transform:scale(1.002)}.results-table-container .results-table tbody tr:hover td{color:#fff}.results-table-container .results-table tbody tr:last-child td{border-bottom:none}.results-table-container .results-table tbody tr:last-child td:first-child{border-bottom-left-radius:12px}.results-table-container 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.module-header{justify-content:space-between;align-items:center;margin-bottom:16px;display:flex}.course-dashboard .module-card .module-header .module-step{text-transform:uppercase;letter-spacing:1px;color:#8b5cf6;font-size:.85rem;font-weight:700}.course-dashboard .module-card .module-header .module-status{color:#10b981;background:#10b9811a;border-radius:20px;padding:4px 10px;font-size:.75rem;font-weight:600}.course-dashboard .module-card h3{color:#f1f5f9;margin-bottom:10px;font-size:1.5rem;font-weight:700}.course-dashboard .module-card p{color:#94a3b8;flex-grow:1;margin-bottom:24px;font-size:.95rem;line-height:1.5}.course-dashboard .module-card .start-btn{color:#fff;cursor:pointer;background:#3b82f6;border:none;border-radius:8px;width:100%;padding:12px;font-size:1rem;font-weight:600;transition:background .2s}.course-dashboard .module-card .start-btn:hover{background:#2563eb}.training-arena-wrapper{grid-template-columns:1fr 300px;align-items:start;gap:24px;max-width:1200px;margin:0 auto;display:grid}@media (width<=900px){.training-arena-wrapper{grid-template-columns:1fr}}.lesson-sidebar{background:#1e293b;border:1px solid #334155;border-radius:24px;max-height:80vh;padding:24px;overflow-y:auto;box-shadow:0 10px 25px #0000004d}.lesson-sidebar::-webkit-scrollbar{width:6px}.lesson-sidebar::-webkit-scrollbar-thumb{background:#475569;border-radius:10px}.lesson-sidebar h3{color:#e2e8f0;text-transform:uppercase;letter-spacing:1px;margin-bottom:20px;font-size:1.2rem}.lesson-sidebar .lesson-item{cursor:pointer;border:1px solid #0000;border-radius:12px;justify-content:space-between;align-items:center;margin-bottom:12px;padding:12px 16px;transition:all .2s;display:flex}.lesson-sidebar .lesson-item.locked{opacity:.5;pointer-events:none;filter:grayscale()}.lesson-sidebar .lesson-item.completed{color:#10b981;background:#10b9811a;border-color:#10b9814d}.lesson-sidebar .lesson-item.active{color:#c4b5fd;background:#8b5cf626;border-color:#8b5cf6;transform:translate(4px)}.lesson-sidebar .lesson-item:not(.locked):not(.active):hover{background:#334155;transform:translate(4px)}.lesson-sidebar .lesson-item .lesson-title{font-size:.95rem;font-weight:600}.lesson-sidebar .lesson-item .status-icon{font-size:1.1rem}.training-arena{text-align:center;background:#1e293b;border:1px solid #334155;border-radius:24px;padding:40px;position:relative;box-shadow:0 25px 50px -12px #00000080}.training-arena .back-btn{color:#94a3b8;cursor:pointer;background:0 0;border:none;align-items:center;gap:8px;font-size:1rem;transition:color .2s;display:flex;position:absolute;top:24px;left:24px}.training-arena .back-btn:hover{color:#f8fafc}.training-arena .loading-overlay{z-index:10;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0f172ae6;border-radius:24px;flex-direction:column;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.training-arena .loading-overlay .spinner{border:4px solid #8b5cf64d;border-top-color:#8b5cf6;border-radius:50%;width:40px;height:40px;margin-bottom:20px;animation:1s linear infinite spin}.training-arena .loading-overlay p{color:#c4b5fd;font-size:1.1rem;font-weight:600}.training-arena .level-indicator{color:#8b5cf6;text-transform:uppercase;letter-spacing:1px;margin-bottom:8px;font-size:.9rem;font-weight:700}.training-arena h2{margin-bottom:10px;font-size:2rem}.training-arena .instruction{color:#94a3b8;margin-bottom:40px}.training-arena .play-btn{color:#fff;cursor:pointer;background:linear-gradient(135deg,#8b5cf6,#3b82f6);border:none;border-radius:50%;justify-content:center;align-items:center;width:100px;height:100px;margin:0 auto 40px;font-size:2.5rem;transition:transform .2s,box-shadow .2s;display:flex;box-shadow:0 10px 25px #3b82f666}.training-arena .play-btn:hover{transform:scale(1.05);box-shadow:0 15px 35px #3b82f699}.training-arena .play-btn:active{transform:scale(.95)}.training-arena .options-grid{flex-wrap:wrap;justify-content:center;gap:16px;margin-bottom:30px;display:flex}.training-arena .options-grid .option-btn{color:#e2e8f0;cursor:pointer;background:#0f172a;border:2px solid #334155;border-radius:12px;padding:16px 32px;font-size:1.2rem;font-weight:600;transition:all .2s}.training-arena .options-grid .option-btn:hover{background:#1e293b;border-color:#475569;transform:translateY(-2px)}.training-arena .options-grid .option-btn.correct{color:#10b981;background:#10b9811a;border-color:#10b981}.training-arena .options-grid .option-btn.incorrect{color:#ef4444;background:#ef44441a;border-color:#ef4444}.training-arena .feedback-area{min-height:40px;font-size:1.2rem;font-weight:700}.training-arena .feedback-area.success{color:#10b981}.training-arena .feedback-area.error{color:#ef4444}.transpose-calculator-container{color:#f8fafc;background-color:#0f172a;min-height:100vh;padding:100px 20px 60px;font-family:Inter,system-ui,-apple-system,sans-serif}.transpose-header{text-align:center;margin-bottom:50px}.transpose-header .icon{filter:drop-shadow(0 0 20px #3b82f666);margin-bottom:20px;font-size:4rem;display:inline-block}.transpose-header h1{background:linear-gradient(135deg,#93c5fd,#3b82f6,#8b5cf6);-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin-bottom:15px;font-size:3rem;font-weight:800}.transpose-header p{color:#94a3b8;max-width:600px;margin:0 auto;font-size:1.2rem}.transpose-dashboard{max-width:1000px;margin:0 auto}.transpose-dashboard .controls-grid{background:#1e293b;border:1px solid #334155;border-radius:16px;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;margin-bottom:40px;padding:30px;display:grid;box-shadow:0 10px 30px #0000004d}.transpose-dashboard .control-group{flex-direction:column;display:flex}.transpose-dashboard .control-group label{color:#94a3b8;text-transform:uppercase;letter-spacing:1px;margin-bottom:8px;font-size:.9rem;font-weight:600}.transpose-dashboard .control-group select{color:#f1f5f9;cursor:pointer;background:#0f172a;border:1px solid #334155;border-radius:8px;outline:none;padding:12px 16px;font-size:1rem;transition:border-color .2s,box-shadow .2s}.transpose-dashboard .control-group select:focus{border-color:#3b82f6;box-shadow:0 0 0 3px #3b82f633}.transpose-dashboard .results-section{background:#1e293b;border:1px solid #334155;border-radius:16px;padding:30px;box-shadow:0 20px 40px #0006}.transpose-dashboard .results-section h2{text-align:center;color:#f1f5f9;margin-bottom:30px;font-size:1.8rem;font-weight:700}.transpose-dashboard .results-section .chords-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;display:grid}.transpose-dashboard .results-section .chord-card{background:#0f172a;border:1px solid #334155;border-radius:12px;flex-direction:column;align-items:center;padding:20px;transition:transform .2s,box-shadow .2s;display:flex}.transpose-dashboard .results-section .chord-card:hover{border-color:#475569;transform:translateY(-4px);box-shadow:0 10px 20px #0000004d}.transpose-dashboard .results-section .chord-card .chord-numeral{color:#8b5cf6;background:#8b5cf61a;border-radius:20px;margin-bottom:12px;padding:4px 10px;font-size:.85rem;font-weight:700}.transpose-dashboard .results-section .chord-card .chord-mapping{align-items:center;gap:12px;font-size:1.4rem;font-weight:700;display:flex}.transpose-dashboard .results-section .chord-card .chord-mapping .original{color:#94a3b8}.transpose-dashboard .results-section .chord-card .chord-mapping .arrow{color:#3b82f6;font-size:1.2rem}.transpose-dashboard .results-section .chord-card .chord-mapping .target{color:#f8fafc}.seo-content-section{color:#94a3b8;max-width:1200px;margin:60px auto 40px;padding:0 24px}.seo-content-section h2{color:#f8fafc;text-align:center;margin-bottom:16px;font-size:2rem}.seo-content-section .seo-grid section{background:#1e293b;border:1px solid #334155;border-radius:24px;padding:32px}.chord-progression-container{color:#f8fafc;background-color:#0f172a;min-height:100vh;padding:100px 20px 60px;font-family:Inter,system-ui,-apple-system,sans-serif;position:relative;overflow:hidden}.chord-progression-container:before,.chord-progression-container:after{content:"";filter:blur(120px);z-index:0;opacity:.3;pointer-events:none;border-radius:50%;width:600px;height:600px;position:absolute}.chord-progression-container:before{background:radial-gradient(circle,#8b5cf6,#0000 70%);top:-200px;left:-200px}.chord-progression-container:after{background:radial-gradient(circle,#3b82f6,#0000 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auto;font-size:1.25rem;line-height:1.6}.progression-dashboard{z-index:1;max-width:1100px;margin:0 auto;position:relative}.progression-dashboard .controls-grid{-webkit-backdrop-filter:blur(12px);background:#1e293bb3;border:1px solid #ffffff14;border-radius:20px;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:24px;margin-bottom:40px;padding:30px;display:grid;box-shadow:0 20px 40px #0003}.progression-dashboard .control-group{flex-direction:column;display:flex}.progression-dashboard .control-group label{color:#94a3b8;text-transform:uppercase;letter-spacing:1.5px;margin-bottom:10px;font-size:.9rem;font-weight:700}.progression-dashboard .control-group select{color:#f8fafc;cursor:pointer;appearance:none;background:#0f172acc url(data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%2394a3b8%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22%2F%3E%3C%2Fsvg%3E) right 15px top 50%/12px no-repeat;border:1px solid #ffffff1a;border-radius:12px;outline:none;padding:14px 20px;font-size:1.1rem;font-weight:500;transition:all .3s}.progression-dashboard .control-group select:focus,.progression-dashboard .control-group select:hover{background-color:#0f172a;border-color:#8b5cf6;box-shadow:0 0 0 4px #8b5cf626}.progression-dashboard .control-group select option{color:#f8fafc;background:#0f172a}.progression-dashboard .results-section .progressions-list{flex-direction:column;gap:24px;display:flex}.progression-dashboard .results-section .progression-row{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#1e293b80;border:1px solid #ffffff0d;border-radius:20px;padding:30px;transition:transform .3s,box-shadow .3s,border-color .3s}.progression-dashboard .results-section .progression-row:hover{border-color:#8b5cf64d;transform:translateY(-5px)scale(1.01);box-shadow:0 25px 50px -12px #00000080}.progression-dashboard .results-section .progression-row.playing{border-color:#3b82f6;box-shadow:0 0 30px #3b82f64d}.progression-dashboard .results-section .progression-row.playing .play-progression-btn{color:#93c5fd;background:#3b82f633;animation:1.5s infinite pulse-border}.progression-dashboard .results-section .progression-row.playing .chord-block{animation:2s infinite pulse-bg}.progression-dashboard .results-section .progression-row .progression-info{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-bottom:20px;display:flex}.progression-dashboard .results-section .progression-row .progression-info .info-left{align-items:center;gap:16px;display:flex}.progression-dashboard .results-section .progression-row .progression-info h3{color:#f1f5f9;font-size:1.4rem;font-weight:700}.progression-dashboard .results-section .progression-row .progression-info .numerals{color:#8b5cf6;letter-spacing:2px;background:#8b5cf61a;border-radius:30px;padding:6px 16px;font-size:1.1rem;font-weight:600}.progression-dashboard .results-section .progression-row .progression-info .play-progression-btn{color:#fff;cursor:pointer;background:linear-gradient(135deg,#3b82f6,#8b5cf6);border:none;border-radius:30px;align-items:center;gap:8px;padding:10px 24px;font-size:1rem;font-weight:700;transition:all .2s;display:flex;box-shadow:0 4px 15px #8b5cf64d}.progression-dashboard .results-section .progression-row .progression-info .play-progression-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #8b5cf680}.progression-dashboard .results-section .progression-row .progression-info .play-progression-btn:disabled{opacity:.5;cursor:not-allowed;box-shadow:none;background:#334155}.progression-dashboard .results-section .progression-row .progression-info .play-progression-btn.stop-btn{background:linear-gradient(135deg,#ef4444,#f43f5e);box-shadow:0 4px 15px #ef444466}.progression-dashboard .results-section .progression-row .progression-info .play-progression-btn.stop-btn:hover{box-shadow:0 6px 20px #ef444499}.progression-dashboard .results-section .progression-row .chords-display{grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:16px;display:grid}.progression-dashboard .results-section .progression-row .chords-display .chord-block{text-align:center;color:#f8fafc;background:linear-gradient(145deg,#1e293b,#0f172a);border:1px solid #334155;border-radius:16px;padding:24px 10px;font-size:2rem;font-weight:800;transition:all .2s;position:relative;overflow:hidden;box-shadow:inset 0 2px 4px #ffffff05,0 10px 20px #0003}.progression-dashboard .results-section .progression-row .chords-display .chord-block.active-chord{color:#fff;z-index:2;background:linear-gradient(145deg,#3b82f6,#8b5cf6);border-color:#93c5fd;transform:scale(1.05);box-shadow:0 0 25px #8b5cf699}.progression-dashboard .results-section .progression-row .chords-display .chord-block:before{content:"";background:linear-gradient(90deg,#0000,#ffffff0d,#0000);width:50%;height:100%;transition:all .5s;position:absolute;top:0;left:-100%;transform:skew(-20deg)}.progression-dashboard .results-section .progression-row .chords-display .chord-block:hover:before{left:150%}.progression-dashboard .results-section .progression-row .chords-display .chord-block:hover{color:#93c5fd;border-color:#3b82f6}@keyframes pulse-border{0%{box-shadow:0 0 #3b82f666}70%{box-shadow:0 0 0 10px #3b82f600}to{box-shadow:0 0 #3b82f600}}@keyframes pulse-bg{0%{background:linear-gradient(145deg,#1e293b,#0f172a)}50%{background:linear-gradient(145deg,#28374d,#162235)}to{background:linear-gradient(145deg,#1e293b,#0f172a)}}.seo-content-section{z-index:1;color:#94a3b8;max-width:1200px;margin:80px auto 40px;padding:0 24px;position:relative}.seo-content-section h2{color:#f8fafc;text-align:center;margin-bottom:16px;font-size:2.2rem;font-weight:800}.seo-content-section>p{text-align:center;max-width:800px;margin:0 auto 50px;font-size:1.15rem;line-height:1.7}.seo-content-section>p strong{color:#a78bfa}.seo-content-section .seo-grid{grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:32px;display:grid}.seo-content-section .seo-grid section{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#1e293b66;border:1px solid #ffffff0d;border-radius:24px;padding:40px;transition:all .3s}.seo-content-section .seo-grid section:hover{background:#1e293bb3;border-color:#8b5cf633}.seo-content-section .seo-grid section h3{color:#e2e8f0;align-items:center;margin-bottom:20px;font-size:1.35rem;display:flex}.seo-content-section .seo-grid section h3:before{content:"🎸";margin-right:12px;font-size:1.8rem}.seo-content-section .seo-grid section p{font-size:1.05rem;line-height:1.7}.chord-finder-page{color:#f8fafc;background-color:#080c14;min-height:100vh;padding-top:100px;padding-bottom:80px;font-family:Inter,system-ui,-apple-system,sans-serif;position:relative;overflow-x:hidden}.chord-finder-page:before,.chord-finder-page:after{content:"";filter:blur(140px);z-index:0;opacity:.25;pointer-events:none;border-radius:50%;width:650px;height:650px;position:absolute}.chord-finder-page:before{background:radial-gradient(circle,#38bdf8,#0000 70%);top:-150px;left:-150px}.chord-finder-page:after{background:radial-gradient(circle,#a855f7,#0000 70%);top:30%;right:-200px}.ambient-glow-bottom{filter:blur(150px);opacity:.15;pointer-events:none;z-index:0;background:radial-gradient(circle,#f43f5e,#0000 70%);border-radius:50%;width:500px;height:500px;position:absolute;bottom:-100px;left:20%}.chord-header-full{z-index:1;max-width:1200px;margin:0 auto 30px;padding:0 20px;position:relative}.chord-header-full .header-card{-webkit-backdrop-filter:blur(20px);background:#0f172abf;border:1px solid #ffffff14;border-radius:28px;flex-direction:column;gap:30px;padding:35px 40px;display:flex;box-shadow:0 25px 50px -12px #00000080}@media (width<=768px){.chord-header-full .header-card{gap:20px;padding:24px 20px}}.chord-header-full .title-section{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:20px;display:flex}.chord-header-full .title-section .title-left{align-items:center;gap:20px;display:flex}.chord-header-full .title-section .title-left .instrument-icon{background:#38bdf81a;border:1px solid #38bdf833;border-radius:20px;justify-content:center;align-items:center;padding:12px 18px;font-size:3.2rem;display:flex;box-shadow:0 0 30px #38bdf833}.chord-header-full .title-section .title-left h2{background:linear-gradient(135deg,#38bdf8 0%,#c084fc 50%,#f43f5e 100%);-webkit-text-fill-color:transparent;letter-spacing:-.5px;-webkit-background-clip:text;margin:0;font-size:2.5rem;font-weight:800}.chord-header-full .title-section .title-left .subtitle{color:#94a3b8;margin:4px 0 0;font-size:1.05rem;font-weight:500}.chord-header-full .title-section .audio-master-controls{align-items:center;gap:12px;display:flex}.chord-header-full .title-section .audio-master-controls .sound-toggle-btn{color:#e2e8f0;cursor:pointer;background:#1e293bcc;border:1px solid #ffffff1a;border-radius:50px;align-items:center;gap:8px;padding:10px 18px;font-size:.95rem;font-weight:600;transition:all .2s;display:flex}.chord-header-full .title-section .audio-master-controls .sound-toggle-btn:hover{color:#38bdf8;background:#38bdf826;border-color:#38bdf8}.chord-header-full .title-section .audio-master-controls .sound-toggle-btn.muted{color:#f43f5e;background:#f43f5e1a;border-color:#f43f5e4d}.chord-header-full .category-pills{gap:10px;padding-bottom:5px;display:flex;overflow-x:auto}.chord-header-full .category-pills::-webkit-scrollbar{display:none}.chord-header-full .category-pills .cat-pill{color:#94a3b8;cursor:pointer;white-space:nowrap;background:#1e293b99;border:1px solid #ffffff0f;border-radius:50px;padding:8px 18px;font-size:.9rem;font-weight:600;transition:all .2s}.chord-header-full .category-pills .cat-pill:hover{color:#f1f5f9;background:#38bdf81a;border-color:#38bdf84d}.chord-header-full .category-pills .cat-pill.active{color:#38bdf8;background:linear-gradient(135deg,#38bdf833,#a855f733);border-color:#38bdf8;box-shadow:0 0 15px #38bdf840}.chord-header-full .chord-selector{border-top:1px solid 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