:root{--primary-color: #f59e0b;--primary-dark: #d97706;--secondary-color: #06b6d4;--success-color: #10b981;--warning-color: #f97316;--error-color: #ef4444;--background-color: #fefefe;--card-background: #ffffff;--text-primary: #1f2937;--text-secondary: #6b7280;--border-color: #f3f4f6;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04);--radius-sm: .25rem;--radius-md: .5rem;--radius-lg: 1rem;--radius-xl: 1.5rem;--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .35s ease;--waveform-background: #f8f8f8;--waveform-color: #b8b8b8;--waveform-color-secondary: #b8b8b8;--waveform-selected: #f59e0b;--waveform-selected-secondary: #f5a419;--waveform-progress: #10b981;--marker-color: #06b6d4;--marker-hover: #0891b2}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--background-color);color:var(--text-primary);line-height:1.6;min-height:100vh}#app{min-height:100vh;display:flex;flex-direction:column}h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.3;margin-bottom:.5em}h1{font-size:2.5rem}h2{font-size:2rem}h3{font-size:1.5rem}h4{font-size:1.25rem}p{margin-bottom:1rem}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 1rem}@media(max-width:480px){h1{font-size:1.75rem}h2{font-size:1.5rem}h3{font-size:1.25rem}.container{padding:0 .75rem}}@media(max-width:320px){h1{font-size:1.5rem}h2{font-size:1.25rem}.container{padding:0 .5rem}}@media(min-width:640px){.container{padding:0 1.5rem}}@media(min-width:1024px){.container{padding:0 2rem}}.card{background:var(--card-background);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);padding:1.5rem;transition:box-shadow var(--transition-normal)}.card:hover{box-shadow:var(--shadow-lg)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1.5rem;font-size:1rem;font-weight:500;border:none;border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);text-decoration:none;white-space:nowrap}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:var(--primary-color);color:#1a1a1a}.btn-primary:hover:not(:disabled){filter:brightness(1.1);box-shadow:var(--shadow-lg)}.btn-secondary{background:#f9fafb;color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover:not(:disabled){background:var(--primary-color);color:#1a1a1a;border-color:var(--primary-color)}.btn-success{background:var(--success-color);color:#fff}.btn-success:hover:not(:disabled){background:#059669}.btn-danger{background:var(--error-color);color:#fff}.btn-danger:hover:not(:disabled){background:#dc2626}.btn-icon{width:2.5rem;height:2.5rem;padding:0;border-radius:50%}.btn-lg{padding:1rem 2rem;font-size:1.125rem}.btn-sm{padding:.5rem 1rem;font-size:.875rem}.form-group{margin-bottom:1rem}.form-label{display:block;font-weight:500;margin-bottom:.5rem;color:var(--text-secondary)}.form-input{width:100%;padding:.75rem 1rem;font-size:1rem;font-family:inherit;border:2px solid var(--border-color);border-radius:var(--radius-md);background:var(--card-background);color:var(--text-primary);transition:border-color var(--transition-fast)}.form-input:focus{outline:none;border-color:var(--primary-color)}.form-select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23718096' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");background-repeat:no-repeat;background-position:left .75rem center;background-size:1rem;padding-left:2.5rem}[dir=ltr] .form-select{background-position:right .75rem center;padding-left:1rem;padding-right:2.5rem}.progress-bar{width:100%;height:.5rem;background:var(--border-color);border-radius:var(--radius-sm);overflow:hidden}.progress-fill{height:100%;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));transition:width var(--transition-normal)}.spinner{width:2rem;height:2rem;border:3px solid var(--border-color);border-top-color:var(--primary-color);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.toast{position:fixed;bottom:2rem;left:50%;transform:translate(-50%);padding:1rem 1.5rem;border-radius:var(--radius-md);box-shadow:var(--shadow-xl);z-index:1000;animation:slideUp .3s ease}.toast-success{background:var(--success-color);color:#fff}.toast-error{background:var(--error-color);color:#fff}.toast-warning{background:var(--warning-color);color:#1a1a1a}@keyframes slideUp{0%{opacity:0;transform:translate(-50%) translateY(1rem)}to{opacity:1;transform:translate(-50%) translateY(0)}}.modal-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:100;padding:1rem}.modal-content{background:var(--card-background);border-radius:var(--radius-lg);max-width:500px;width:100%;max-height:90vh;overflow-y:auto;animation:modalIn .3s ease}@keyframes modalIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.text-center{text-align:center}.text-right{text-align:right}.text-left{text-align:left}.text-primary{color:var(--primary-color)}.text-secondary{color:var(--text-secondary)}.text-success{color:var(--success-color)}.text-error{color:var(--error-color)}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-1{gap:.25rem}.gap-2{gap:.5rem}.gap-3{gap:.75rem}.gap-4{gap:1rem}.mt-1{margin-top:.25rem}.mt-2{margin-top:.5rem}.mt-3{margin-top:.75rem}.mt-4{margin-top:1rem}.mb-1{margin-bottom:.25rem}.mb-2{margin-bottom:.5rem}.mb-3{margin-bottom:.75rem}.mb-4{margin-bottom:1rem}.p-2{padding:.5rem}.p-3{padding:.75rem}.p-4{padding:1rem}.w-full{width:100%}.h-full{height:100%}.hidden{display:none}.visible{visibility:visible}.invisible{visibility:hidden}@media(max-width:639px){.sm\:hidden{display:none}}@media(min-width:640px){.sm\:block{display:block}.sm\:flex{display:flex}}@media(min-width:768px){.md\:block{display:block}.md\:flex{display:flex}}@media(min-width:1024px){.lg\:block{display:block}.lg\:flex{display:flex}}@media(hover:none)and (pointer:coarse){.btn{min-height:44px;min-width:44px}.form-input,.form-select{min-height:44px;font-size:16px}}:focus-visible{outline:2px solid var(--primary-color);outline-offset:2px}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--border-color);border-radius:var(--radius-sm)}::-webkit-scrollbar-thumb{background:var(--text-secondary);border-radius:var(--radius-sm)}::-webkit-scrollbar-thumb:hover{background:var(--text-primary)}::selection{background:var(--primary-color);color:#1a1a1a}