:root{--bg-primary: #0d1020;--bg-secondary: #1a1f3a;--bg-accent: rgba(59, 130, 246, .1);--accent-primary: #3b82f6;--accent-secondary: #14b8a6;--accent-tertiary: #10b981;--text-primary: #ecfeff;--text-secondary: #cbd5e1;--text-muted: #64748b;--border-color: rgba(59, 130, 246, .2);--glow-color: rgba(59, 130, 246, .4);--success: #10b981;--warning: #f59e0b;--error: #ef4444}*{box-sizing:border-box}body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:linear-gradient(135deg,var(--bg-primary) 0%,var(--bg-secondary) 100%);color:var(--text-primary);min-height:100vh;line-height:1.6}.app{min-height:100vh;display:flex;flex-direction:column}.header{padding:2rem 0;border-bottom:1px solid var(--border-color);background:#1a1f3acc;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.container{max-width:1200px;margin:0 auto;padding:0 1.5rem}.title{font-size:clamp(2rem,5vw,3.5rem);font-weight:700;text-align:center;margin:0 0 2rem;background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-shadow:0 0 30px var(--glow-color)}.intro-content{display:flex;flex-direction:column;align-items:center;gap:2rem}.intro-text{max-width:70ch;text-align:center}.intro-text h2{font-size:1.5rem;margin:0 0 1rem;color:var(--accent-secondary)}.intro-text p{font-size:1.1rem;margin:0 0 1rem;color:var(--text-secondary);line-height:1.7}.disclaimer{font-style:italic;color:var(--text-muted);border-top:1px solid var(--border-color);padding-top:1rem;margin-top:1rem}.ad-slot{background:#3b82f60d;border:1px dashed var(--border-color);border-radius:8px;display:flex;align-items:center;justify-content:center;color:var(--text-muted);font-size:.9rem;position:relative}.ad-slot:after{content:"Advertisement";opacity:.5}.ad-728x90{width:728px;height:90px;margin:12px auto;max-width:100%}.ad-footer{width:100%;height:120px;margin:2rem 0}.main-content{flex:1;display:grid;grid-template-columns:1fr 1fr;gap:2rem;padding:2rem 1.5rem;max-width:1400px;margin:0 auto;width:100%}.visualization-section{position:relative}.visualizer{background:#1a1f3a99;border:1px solid var(--border-color);border-radius:16px;padding:1rem;height:600px;position:relative;overflow:hidden}.visualizer-canvas{width:100%;height:100%;border-radius:12px;background:radial-gradient(circle at center,rgba(59,130,246,.1) 0%,transparent 70%)}.energy-indicator{position:absolute;top:1rem;right:1rem;background:#0d1020e6;border:1px solid var(--border-color);border-radius:8px;padding:.75rem;min-width:120px}.energy-label{font-size:.85rem;color:var(--text-secondary);margin-bottom:.5rem}.energy-bar{width:100%;height:8px;background:#3b82f633;border-radius:4px;overflow:hidden}.energy-fill{height:100%;background:linear-gradient(90deg,var(--accent-secondary),var(--accent-primary));border-radius:4px;transition:width .3s ease;box-shadow:0 0 8px var(--glow-color)}.controls-section{background:#1a1f3a99;border:1px solid var(--border-color);border-radius:16px;padding:1.5rem;height:-moz-fit-content;height:fit-content;max-height:600px;overflow-y:auto}.controls{display:flex;flex-direction:column;gap:1.5rem}.controls h3,.controls h4{margin:0;color:var(--accent-secondary);font-size:1.1rem;font-weight:600}.controls-header{display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap}.session-controls{display:flex;gap:.75rem}.session-button{padding:.75rem 1.5rem;background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));border:none;border-radius:8px;color:#fff;font-weight:600;cursor:pointer;transition:all .2s ease;min-width:120px}.session-button:hover{transform:translateY(-2px);box-shadow:0 4px 20px var(--glow-color)}.session-button.playing{background:linear-gradient(135deg,var(--warning),var(--error))}.reset-button{padding:.75rem 1rem;background:#64748b33;border:1px solid var(--border-color);border-radius:8px;color:var(--text-secondary);cursor:pointer;transition:all .2s ease}.reset-button:hover{background:#64748b4d;color:var(--text-primary)}.timer-section{display:flex;flex-direction:column;align-items:flex-end;gap:.5rem}.timer-label{font-size:.9rem;color:var(--text-secondary)}.timer-select{padding:.5rem;background:#0d1020cc;border:1px solid var(--border-color);border-radius:6px;color:var(--text-primary);cursor:pointer}.timer-display{font-family:Courier New,monospace;font-size:1.1rem;color:var(--accent-secondary);font-weight:700}.presets-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:.75rem}.preset-button{padding:.75rem;background:#3b82f61a;border:1px solid var(--border-color);border-radius:8px;color:var(--text-primary);cursor:pointer;transition:all .2s ease;font-size:.9rem;text-align:center}.preset-button:hover{background:#3b82f633;transform:translateY(-1px)}.preset-button.active{background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));box-shadow:0 0 12px var(--glow-color);color:#fff}.harmonics-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(100px,1fr));gap:.75rem}.harmonic-toggle{position:relative;display:flex;flex-direction:column;align-items:center;padding:.75rem;background:#3b82f60d;border:1px solid var(--border-color);border-radius:8px;cursor:pointer;transition:all .2s ease}.harmonic-toggle:hover{background:#3b82f61a}.harmonic-toggle input{position:absolute;opacity:0;pointer-events:none}.harmonic-label{font-size:.9rem;color:var(--text-secondary);margin-bottom:.5rem}.toggle-indicator{width:12px;height:12px;border-radius:50%;background:#64748b4d;transition:all .2s ease}.harmonic-toggle input:checked~.toggle-indicator{background:var(--accent-secondary);box-shadow:0 0 8px var(--accent-secondary)}.harmonic-toggle input:checked~.harmonic-label{color:var(--accent-secondary)}.harmonic-toggle:has(input:checked){background:#14b8a61a;border-color:var(--accent-secondary)}.parameter-group{display:flex;flex-direction:column;gap:.5rem}.parameter-label{display:flex;justify-content:space-between;align-items:center;font-size:.95rem;color:var(--text-secondary)}.parameter-value{color:var(--accent-secondary);font-weight:600;font-size:.9rem}.parameter-slider{width:100%;height:6px;background:#64748b4d;border-radius:3px;outline:none;-webkit-appearance:none;-moz-appearance:none;appearance:none;cursor:pointer}.parameter-slider::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:16px;height:16px;border-radius:50%;background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));cursor:pointer;box-shadow:0 2px 8px var(--glow-color)}.parameter-slider::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));cursor:pointer;border:none;box-shadow:0 2px 8px var(--glow-color)}.carriers-group{background:#0d10204d;padding:1rem;border-radius:8px;border:1px solid var(--border-color)}.keyboard-hints{background:#0d102080;padding:1rem;border-radius:8px;border:1px solid var(--border-color)}.hints-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:.5rem;font-size:.85rem;color:var(--text-muted);margin-top:.5rem}.footer{padding:2rem 1.5rem 1rem;text-align:center;border-top:1px solid var(--border-color);background:#1a1f3a99}.footer-text{margin:1rem 0 0;font-size:.9rem;color:var(--text-muted)}@media (max-width: 1024px){.main-content{grid-template-columns:1fr;gap:1.5rem}.controls-header{flex-direction:column;align-items:stretch;gap:1rem}.timer-section{align-items:stretch}}@media (max-width: 768px){.container{padding:0 1rem}.main-content{padding:1.5rem 1rem}.visualizer{height:400px}.presets-grid,.harmonics-grid{grid-template-columns:repeat(2,1fr)}.hints-grid{grid-template-columns:1fr}.session-controls{flex-direction:column}.session-button{min-width:auto}}@media (max-width: 480px){.title{font-size:2rem}.intro-text p{font-size:1rem}.presets-grid,.harmonics-grid{grid-template-columns:1fr}}.controls-section::-webkit-scrollbar{width:8px}.controls-section::-webkit-scrollbar-track{background:#0d102080;border-radius:4px}.controls-section::-webkit-scrollbar-thumb{background:#3b82f64d;border-radius:4px}.controls-section::-webkit-scrollbar-thumb:hover{background:#3b82f680}button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--accent-primary);outline-offset:2px}@keyframes glow{0%,to{box-shadow:0 0 8px var(--glow-color)}50%{box-shadow:0 0 16px var(--glow-color),0 0 24px var(--glow-color)}}.session-button.playing{animation:glow 2s ease-in-out infinite}*,:before,:after{--tw-border-spacing-x: 0;--tw-border-spacing-y: 0;--tw-translate-x: 0;--tw-translate-y: 0;--tw-rotate: 0;--tw-skew-x: 0;--tw-skew-y: 0;--tw-scale-x: 1;--tw-scale-y: 1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness: proximity;--tw-gradient-from-position: ;--tw-gradient-via-position: ;--tw-gradient-to-position: ;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width: 0px;--tw-ring-offset-color: #fff;--tw-ring-color: rgb(59 130 246 / .5);--tw-ring-offset-shadow: 0 0 #0000;--tw-ring-shadow: 0 0 #0000;--tw-shadow: 0 0 #0000;--tw-shadow-colored: 0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: ;--tw-contain-size: ;--tw-contain-layout: ;--tw-contain-paint: ;--tw-contain-style: }::backdrop{--tw-border-spacing-x: 0;--tw-border-spacing-y: 0;--tw-translate-x: 0;--tw-translate-y: 0;--tw-rotate: 0;--tw-skew-x: 0;--tw-skew-y: 0;--tw-scale-x: 1;--tw-scale-y: 1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness: proximity;--tw-gradient-from-position: ;--tw-gradient-via-position: ;--tw-gradient-to-position: ;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width: 0px;--tw-ring-offset-color: #fff;--tw-ring-color: rgb(59 130 246 / .5);--tw-ring-offset-shadow: 0 0 #0000;--tw-ring-shadow: 0 0 #0000;--tw-shadow: 0 0 #0000;--tw-shadow-colored: 0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: ;--tw-contain-size: ;--tw-contain-layout: ;--tw-contain-paint: ;--tw-contain-style: }*,:before,:after{box-sizing:border-box;border-width:0;border-style:solid;border-color:#e5e7eb}:before,:after{--tw-content: ""}html,:host{line-height:1.5;-webkit-text-size-adjust:100%;-moz-tab-size:4;-o-tab-size:4;tab-size:4;font-family:ui-sans-serif,system-ui,sans-serif,"Apple Color Emoji","Segoe UI Emoji",Segoe UI Symbol,"Noto Color Emoji";font-feature-settings:normal;font-variation-settings:normal;-webkit-tap-highlight-color:transparent}body{margin:0;line-height:inherit}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;font-feature-settings:normal;font-variation-settings:normal;font-size:1em}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}button,input,optgroup,select,textarea{font-family:inherit;font-feature-settings:inherit;font-variation-settings:inherit;font-size:100%;font-weight:inherit;line-height:inherit;letter-spacing:inherit;color:inherit;margin:0;padding:0}button,select{text-transform:none}button,input:where([type=button]),input:where([type=reset]),input:where([type=submit]){-webkit-appearance:button;background-color:transparent;background-image:none}:-moz-focusring{outline:auto}:-moz-ui-invalid{box-shadow:none}progress{vertical-align:baseline}::-webkit-inner-spin-button,::-webkit-outer-spin-button{height:auto}[type=search]{-webkit-appearance:textfield;outline-offset:-2px}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}summary{display:list-item}blockquote,dl,dd,h1,h2,h3,h4,h5,h6,hr,figure,p,pre{margin:0}fieldset{margin:0;padding:0}legend{padding:0}ol,ul,menu{list-style:none;margin:0;padding:0}dialog{padding:0}textarea{resize:vertical}input::-moz-placeholder,textarea::-moz-placeholder{opacity:1;color:#9ca3af}input::placeholder,textarea::placeholder{opacity:1;color:#9ca3af}button,[role=button]{cursor:pointer}:disabled{cursor:default}img,svg,video,canvas,audio,iframe,embed,object{display:block;vertical-align:middle}img,video{max-width:100%;height:auto}[hidden]:where(:not([hidden=until-found])){display:none}.container{width:100%}@media (min-width: 640px){.container{max-width:640px}}@media (min-width: 768px){.container{max-width:768px}}@media (min-width: 1024px){.container{max-width:1024px}}@media (min-width: 1280px){.container{max-width:1280px}}@media (min-width: 1536px){.container{max-width:1536px}}.resize{resize:both}.ring{--tw-ring-offset-shadow: var(--tw-ring-inset) 0 0 0 var(--tw-ring-offset-width) var(--tw-ring-offset-color);--tw-ring-shadow: var(--tw-ring-inset) 0 0 0 calc(3px + var(--tw-ring-offset-width)) var(--tw-ring-color);box-shadow:var(--tw-ring-offset-shadow),var(--tw-ring-shadow),var(--tw-shadow, 0 0 #0000)}.filter{filter:var(--tw-blur) var(--tw-brightness) var(--tw-contrast) var(--tw-grayscale) var(--tw-hue-rotate) var(--tw-invert) var(--tw-saturate) var(--tw-sepia) var(--tw-drop-shadow)}