*{margin:0;padding:0;box-sizing:border-box}:focus-visible{outline:none!important}[hidden]{display:none!important}:root{--bg-terminal: #0d0d14;--bg-surface: #16161f;--bg-elevated: #1e1e2e;--purple-50: #f5f3ff;--purple-100: #ede9fe;--purple-400: #a78bfa;--purple-500: #8b5cf6;--purple-600: #7c3aed;--purple-700: #6d28d9;--purple-900: #4c1d95;--cyan-400: #22d3ee;--cyan-500: #06b6d4;--cyan-600: #0891b2;--success: #10b981;--warning: #f59e0b;--error: #ef4444;--info: #3b82f6;--text-primary: #f8fafc;--text-secondary: #cbd5e1;--text-tertiary: #94a3b8;--text-dim: #64748b;--border-subtle: rgba(139, 92, 246, .12);--border-default: rgba(139, 92, 246, .24);--border-strong: rgba(139, 92, 246, .36);--text-xs: .75rem;--text-sm: .875rem;--text-base: 1rem;--text-lg: 1.25rem;--text-xl: 1.5rem;--text-2xl: 1.875rem;--text-3xl: 2.25rem;--leading-none: 1;--leading-tight: 1.25;--leading-snug: 1.375;--leading-normal: 1.5;--leading-relaxed: 1.625;--font-normal: 400;--font-medium: 500;--font-semibold: 600;--font-bold: 700;--spacing-0: 0;--spacing-1: .25rem;--spacing-2: .5rem;--spacing-3: .75rem;--spacing-4: 1rem;--spacing-5: 1.25rem;--spacing-6: 1.5rem;--spacing-8: 2rem;--spacing-10: 2.5rem;--spacing-12: 3rem;--spacing-16: 4rem;--radius-sm: .25rem;--radius-md: .375rem;--radius-lg: .5rem;--radius-xl: .75rem;--shadow-sm: 0 1px 2px rgba(79, 28, 217, .05);--shadow-md: 0 4px 6px rgba(79, 28, 217, .1);--shadow-lg: 0 10px 15px rgba(79, 28, 217, .15);--shadow-xl: 0 20px 25px rgba(79, 28, 217, .2);--shadow-glow: 0 0 20px rgba(139, 92, 246, .4);--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-base: .2s cubic-bezier(.4, 0, .2, 1);--transition-slow: .3s cubic-bezier(.4, 0, .2, 1);--font-mono: "JetBrains Mono", "Fira Code", "Cascadia Code", "Consolas", monospace;--font-sans: "Inter", system-ui, -apple-system, sans-serif;--strudel-bg: #0d1117;--strudel-bg-light: #161b22;--strudel-accent: #58a6ff;--strudel-pink: #db61a2;--strudel-green: #3fb950;--strudel-purple: #8957e5;--strudel-cyan: #79c0ff;--strudel-text-muted: #8b949e;--syntax-keyword: var(--strudel-pink);--syntax-string: var(--strudel-green);--syntax-number: var(--strudel-purple);--syntax-function: var(--strudel-cyan);--syntax-property: var(--strudel-accent);--syntax-comment: var(--strudel-text-muted);--bg-space: var(--bg-terminal);--accent-cyan: var(--cyan-400);--accent-purple: var(--purple-500);--accent-magenta: var(--purple-600);--border-glow: var(--border-default)}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-20px)}}@keyframes glow-pulse{0%,to{box-shadow:0 0 20px #a855f74d}50%{box-shadow:0 0 40px #a855f799}}@keyframes rotate-border{0%{background-position:0% 50%}to{background-position:200% 50%}}@keyframes fade-in{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes gradient-shift{0%,to{background-position:0% 50%}50%{background-position:100% 50%}}html{height:100%;overflow:hidden}body{font-family:var(--font-sans);background:var(--bg-terminal);color:var(--text-primary);line-height:var(--leading-normal);height:100%;overflow:hidden}header{background:var(--bg-surface);border-bottom:1px solid var(--border-default);color:var(--text-primary);padding:var(--spacing-4) var(--spacing-8);display:flex;justify-content:space-between;align-items:center;box-shadow:var(--shadow-md);position:relative;flex-shrink:0}header:after{content:"";position:absolute;bottom:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--purple-500),transparent);opacity:.6;box-shadow:var(--shadow-glow)}header h1{font-size:var(--text-2xl);font-weight:var(--font-bold);font-family:var(--font-mono);text-shadow:0 0 15px rgba(139,92,246,.4);letter-spacing:.15em;margin:0}header p{font-size:var(--text-xs);color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.1em;font-family:var(--font-mono);margin:0}footer{background:var(--bg-surface);padding:var(--spacing-2) var(--spacing-4);text-align:center;color:var(--text-tertiary);font-size:var(--text-xs);border-top:1px solid var(--border-default);flex-shrink:0;display:flex;align-items:center;justify-content:center;gap:var(--spacing-4)}footer p{margin:0}footer a{color:var(--purple-400);text-decoration:none;transition:color var(--transition-base)}footer a:hover,footer a:focus-visible{color:var(--purple-500)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-terminal);border-radius:var(--radius-sm)}::-webkit-scrollbar-thumb{background:var(--purple-600);border-radius:var(--radius-sm);border:2px solid var(--bg-terminal)}::-webkit-scrollbar-thumb:hover{background:var(--purple-500);box-shadow:0 0 10px #8b5cf680}*{scrollbar-width:thin;scrollbar-color:var(--purple-600) var(--bg-terminal)}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}#app-container{display:flex;flex-direction:column;height:100vh;overflow:hidden}.split-layout{display:grid;grid-template-columns:420px 1fr;gap:0;flex:1;min-height:0;max-width:100%;padding:0;overflow:hidden}.controls-panel{scrollbar-gutter:stable;background:var(--bg-surface);border-right:none!important;box-shadow:inset -1px 0 0 0 var(--border-default);padding:var(--spacing-8);display:flex;flex-direction:column;gap:var(--spacing-5);overflow-y:auto;height:100%}.code-panel{background:var(--bg-terminal);padding:var(--spacing-6);overflow:hidden;display:flex;flex-direction:column;min-height:0;height:100%}.code-container{flex:1;display:flex;flex-direction:column;gap:var(--spacing-4);min-height:0}.code-placeholder{flex:1;display:flex;align-items:center;justify-content:center;color:var(--text-dim);min-height:0;transition:all var(--transition-base)}.code-placeholder:hover,.code-placeholder:focus-within{background:#8b5cf608;cursor:pointer}.placeholder-content:hover{filter:drop-shadow(0 0 10px rgba(139,92,246,.4));transform:translateY(-2px)}.placeholder-content:hover p,.placeholder-content:hover svg{color:var(--purple-400)}.placeholder-content{text-align:center;transition:all var(--transition-base)}.placeholder-content svg{margin-bottom:var(--spacing-4);color:var(--text-dim)}.placeholder-content p{font-size:var(--text-sm);font-family:var(--font-mono);color:var(--text-dim)}.midi-info{background:var(--bg-elevated);border:1px solid var(--border-default);border-radius:var(--radius-md);padding:var(--spacing-4);display:flex;flex-direction:column;gap:var(--spacing-3)}.info-row{display:flex;justify-content:space-between;align-items:center;font-family:var(--font-mono);padding:var(--spacing-2) 0}.info-row .label{font-size:var(--text-xs);color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.05em;font-weight:var(--font-medium)}.info-row .value{font-size:var(--text-base);color:var(--purple-400);font-weight:var(--font-semibold);font-variant-numeric:tabular-nums}.options-compact{flex:1}.convert-button{width:100%;background:var(--purple-600);color:var(--text-primary);border:none;padding:var(--spacing-4);border-radius:var(--radius-md);font-size:var(--text-sm);font-weight:var(--font-semibold);font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.05em;cursor:pointer;transition:all var(--transition-base);flex-shrink:0}.convert-button:hover:not(:disabled),.convert-button:focus-visible:not(:disabled){background:var(--purple-500)}.convert-button:disabled{opacity:.5;cursor:not-allowed}.file-upload.has-error{border-color:var(--error)!important;background:#ef444414!important;box-shadow:0 0 12px #ef44441a!important}.file-upload.has-error:hover{border-color:var(--error)!important;background:#ef44441f!important;box-shadow:0 0 20px #ef444433!important}.upload-icon.error{color:var(--error);filter:drop-shadow(0 0 8px rgba(239,68,68,.4))}.error-text{color:var(--text-primary);font-size:var(--text-sm);font-family:var(--font-mono);font-weight:var(--font-bold);text-shadow:0 0 10px rgba(239,68,68,.3)}.file-upload .browse-button.error{background:var(--error)!important;color:var(--text-primary)!important;box-shadow:0 4px 12px #ef444433!important;transition:none!important}.file-upload .browse-button.error:hover{filter:brightness(1.1);box-shadow:0 0 15px #ef444466;transform:translateY(-1px);transition:all var(--transition-base)!important}.file-upload-container{width:100%}.file-upload{border:1px dashed var(--border-default);border-radius:var(--radius-lg);padding:var(--spacing-8);text-align:center;transition:all var(--transition-base);background:var(--bg-surface);cursor:pointer;position:relative;overflow:hidden}.file-upload:hover,.file-upload:focus-within{border-color:var(--purple-500);background:#8b5cf60d;box-shadow:var(--shadow-md)}.file-upload:focus-within{border-style:solid;box-shadow:var(--shadow-glow)}.file-upload.drag-active{border-color:var(--purple-400);background:#8b5cf61a;box-shadow:0 0 0 3px #8b5cf633;transform:scale(1.01)}.file-upload.file-loaded{border-color:var(--purple-500);border-style:solid;background:#8b5cf614;box-shadow:0 0 0 1px #8b5cf633,var(--shadow-md)}.file-upload.file-loaded:hover,.file-upload.file-loaded:focus-within{background:#8b5cf61f;box-shadow:0 0 0 1px #8b5cf64d,var(--shadow-glow)}.upload-prompt{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-4);position:relative;z-index:1}.upload-icon{color:var(--purple-400);opacity:.7;filter:drop-shadow(0 0 8px rgba(139,92,246,.3));width:48px;height:48px}.file-icon{color:var(--purple-400);filter:drop-shadow(0 0 12px rgba(139,92,246,.5));width:48px;height:48px;animation:fade-in var(--transition-slow) ease-out}.file-name{font-size:var(--text-base);font-weight:var(--font-semibold);color:var(--text-primary);font-family:var(--font-mono);letter-spacing:.02em;text-shadow:0 0 10px rgba(139,92,246,.3);animation:fade-in var(--transition-slow) ease-out;word-break:break-all;text-align:center;max-width:100%}.upload-text{font-size:var(--text-sm);font-weight:var(--font-medium);color:var(--text-secondary);font-family:var(--font-mono);letter-spacing:.02em}.upload-or{color:var(--text-dim);font-size:var(--text-xs);text-transform:uppercase;letter-spacing:.1em;font-family:var(--font-mono)}.browse-button{background:var(--purple-600);color:var(--text-primary);border:none;padding:var(--spacing-3) var(--spacing-6);border-radius:var(--radius-md);font-size:var(--text-sm);font-weight:var(--font-semibold);font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.05em;cursor:pointer;transition:all var(--transition-base);box-shadow:var(--shadow-md)}.browse-button:hover,.browse-button:focus-visible{background:var(--purple-500);box-shadow:var(--shadow-glow);transform:translateY(-1px)}.change-button{background:transparent;color:var(--purple-400);border:1px solid var(--purple-500);padding:var(--spacing-2) var(--spacing-4);border-radius:var(--radius-md);font-size:var(--text-xs);font-weight:var(--font-medium);font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.05em;cursor:pointer;transition:all var(--transition-base);animation:fade-in var(--transition-slow) ease-out}.change-button:hover,.change-button:focus-visible{background:var(--purple-600);color:var(--text-primary);transform:translateY(-1px);box-shadow:var(--shadow-md)}.upload-hint{font-size:var(--text-xs);color:var(--text-dim);font-family:var(--font-mono);letter-spacing:.05em;white-space:nowrap}.conversion-options-container{width:100%;display:flex;flex-direction:column;gap:var(--spacing-3);font-family:var(--font-mono)}.option-group{background:var(--bg-surface);border:1px solid var(--border-default);border-radius:var(--radius-md);transition:border-color var(--transition-base),background var(--transition-base);padding:0;display:flex}.option-group:hover,.option-group:focus-within{border-color:var(--border-strong);background:#8b5cf61a}.option-group.is-locked{opacity:.5;cursor:not-allowed;background:var(--bg-terminal);filter:grayscale(1)}.option-group.is-locked .select-input{cursor:not-allowed;pointer-events:none}.checkbox-label{display:flex;align-items:center;gap:var(--spacing-3);cursor:pointer;user-select:none}.checkbox-label input[type=checkbox]{width:18px;height:18px;cursor:pointer;accent-color:var(--purple-600);background:var(--bg-surface);border:1.5px solid var(--border-default);border-radius:var(--radius-sm);flex-shrink:0}.checkbox-label input[type=checkbox]:checked{filter:drop-shadow(0 0 4px rgba(139,92,246,.5))}.checkbox-label span{color:var(--text-secondary);font-size:var(--text-sm);text-transform:uppercase;letter-spacing:.05em;transition:color var(--transition-fast)}.option-group:hover span,.option-group:focus-within span,.option-group:hover .range-title,.option-group:focus-within .range-title{color:var(--text-primary)}.range-label{display:flex;flex-direction:column;gap:var(--spacing-2)}.range-title{color:var(--text-secondary);font-size:var(--text-xs);text-transform:uppercase;letter-spacing:.1em;font-weight:var(--font-medium)}.range-value{color:var(--purple-400);font-size:var(--text-base);font-weight:var(--font-semibold);text-shadow:0 0 8px rgba(139,92,246,.3);font-variant-numeric:tabular-nums}.range-label input[type=range]{width:100%;cursor:pointer;height:4px;background:var(--bg-elevated);border-radius:2px;outline:none;-webkit-appearance:none}.range-label input[type=range]:focus-visible{filter:brightness(1.2)}.range-label input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:16px;height:16px;background:var(--purple-500);border:2px solid var(--bg-terminal);border-radius:50%;cursor:pointer;box-shadow:0 1px 4px #0006}.range-label input[type=range]::-moz-range-thumb{width:16px;height:16px;background:var(--purple-500);border:2px solid var(--bg-terminal);border-radius:50%;cursor:pointer;box-shadow:0 1px 4px #0006}.advanced-section{margin-top:var(--spacing-2)}.advanced-toggle{background:#8b5cf614;border:1px solid var(--border-default);color:var(--text-secondary);padding:var(--spacing-3);border-radius:var(--radius-md);font-size:var(--text-xs);font-weight:var(--font-semibold);cursor:pointer;width:100%;text-align:left;text-transform:uppercase;letter-spacing:.1em;transition:all var(--transition-base);font-family:var(--font-mono);list-style:none}.advanced-toggle::-webkit-details-marker{display:none}.advanced-toggle:after{content:" ▼";float:right;transition:transform var(--transition-base)}.advanced-section[open] .advanced-toggle:after{transform:rotate(180deg)}.advanced-toggle:hover,.advanced-toggle:focus-visible{background:#8b5cf626;border-color:var(--purple-500)}.advanced-options{margin-top:var(--spacing-3);padding-top:var(--spacing-3);border-top:1px solid var(--border-default)}.select-label{display:flex;flex-direction:column;gap:var(--spacing-2)}.select-title{color:var(--text-secondary);font-size:var(--text-xs);text-transform:uppercase;letter-spacing:.1em;font-weight:var(--font-medium)}.select-input{width:100%;padding:var(--spacing-2) var(--spacing-3);background:var(--bg-elevated);color:var(--text-primary);border:1px solid var(--border-default);border-radius:var(--radius-md);font-family:var(--font-mono);font-size:var(--text-sm);cursor:pointer;transition:all var(--transition-base)}.select-input:hover,.select-input:focus-visible{border-color:var(--purple-500);box-shadow:0 0 10px #8b5cf633}.checkbox-label,.range-label,.select-label{width:100%;height:100%;padding:var(--spacing-3)}.output-display-container{width:100%;height:100%;display:flex;flex-direction:column;min-height:0;max-height:100%;animation:fade-in var(--transition-slow) ease-out}.output-header{flex-shrink:0;display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-4);padding-bottom:var(--spacing-3);border-bottom:1px solid var(--border-default)}.output-header h3{font-size:var(--text-base);font-weight:var(--font-semibold);color:var(--purple-400);font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.1em;text-shadow:0 0 8px rgba(139,92,246,.3)}.button-group{display:flex;gap:var(--spacing-3)}.copy-button{background:var(--bg-elevated);color:var(--text-secondary);border:1px solid var(--border-default);padding:var(--spacing-2) var(--spacing-4);border-radius:var(--radius-md);font-size:var(--text-sm);font-weight:var(--font-medium);font-family:var(--font-mono);cursor:pointer;transition:all var(--transition-base);box-shadow:var(--shadow-sm)}.copy-button:hover,.copy-button:focus-visible{background:var(--purple-600);color:var(--text-primary);border-color:var(--purple-500);box-shadow:var(--shadow-md);transform:translateY(-1px)}.copy-button:active{transform:translateY(0)}.strudel-button{background:var(--purple-600);color:var(--text-primary);border:none;padding:var(--spacing-2) var(--spacing-5);border-radius:var(--radius-md);font-size:var(--text-sm);font-weight:var(--font-semibold);font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.05em;cursor:pointer;transition:all var(--transition-base);box-shadow:var(--shadow-md)}.strudel-button:hover,.strudel-button:focus-visible{background:var(--purple-500);transform:translateY(-1px);box-shadow:var(--shadow-glow)}.strudel-button:active{transform:translateY(0)}.code-output{width:100%;flex:1 1 0;min-height:0;max-height:100%;padding:var(--spacing-4);background:var(--bg-terminal);border:1px solid var(--border-default);border-radius:var(--radius-lg);font-family:var(--font-mono);font-size:var(--text-sm);line-height:var(--leading-relaxed);overflow-x:hidden;overflow-y:auto;box-shadow:var(--shadow-md);transition:all var(--transition-base);position:relative;margin:0;white-space:pre-wrap;overflow-wrap:anywhere;word-break:normal}.code-output:focus{outline:none!important}.code-output:focus,.code-output:focus-visible{outline:2px solid rgba(139,92,246,.2);outline-offset:2px;border-color:var(--purple-500);box-shadow:var(--shadow-glow)}#code-content.syntax-highlight{position:relative;top:auto;left:auto}::highlight(sh-str){color:var(--strudel-green)}::highlight(sh-fn){color:var(--strudel-cyan)}::highlight(sh-num){color:var(--strudel-purple)}::highlight(sh-op){color:var(--strudel-pink)}::highlight(sh-kw){color:var(--strudel-pink);text-shadow:.4px 0 .1px var(--strudel-pink),-.1px 0 .1px var(--strudel-pink)}::highlight(sh-cm){color:var(--strudel-text-muted)}::highlight(sh-note){color:var(--strudel-green);text-shadow:0 0 8px var(--strudel-green),.4px 0 .1px var(--strudel-green)}::highlight(sh-samp){color:var(--strudel-purple)}::highlight(sh-br){color:var(--text-secondary)}::highlight(sh-active){background-color:#58a6ff33;color:#fff}#code-content.sh-single-node{display:flex;align-items:flex-start;white-space:pre-wrap;word-wrap:break-word}#code-content .sh-line-nums{flex-shrink:0;width:3rem;padding-right:.8rem;text-align:right;color:var(--text-dim);font-size:11px;user-select:none;pointer-events:none;white-space:pre;line-height:1.625;border-right:1px solid var(--border-default);box-sizing:border-box;overflow:hidden;font-family:var(--font-mono)}#code-content .sh-code{flex:1;min-width:0;white-space:pre-wrap;word-wrap:break-word;overflow-wrap:break-word}#code-content .hl-str{color:var(--strudel-green)}#code-content .hl-fn{color:var(--strudel-cyan)}#code-content .hl-num{color:var(--strudel-purple)}#code-content .hl-op{color:var(--strudel-pink)}#code-content .hl-kw{color:var(--strudel-pink);font-weight:700}#code-content .hl-cm{color:var(--strudel-text-muted);font-style:italic}#code-content .hl-note{color:var(--strudel-green);font-weight:700}#code-content .hl-samp{color:var(--strudel-purple)}#code-content .hl-br{color:var(--text-secondary)}#code-content .hl-active{background:#58a6ff33;border-radius:2px}.download-button-container{width:100%;margin-top:var(--spacing-4)}.download-button{display:flex;align-items:center;gap:var(--spacing-2);background:var(--bg-elevated);color:var(--text-secondary);border:1px solid var(--border-default);padding:var(--spacing-3) var(--spacing-6);border-radius:var(--radius-md);font-size:var(--text-sm);font-weight:var(--font-medium);font-family:var(--font-mono);cursor:pointer;transition:all var(--transition-base);width:100%;justify-content:center;box-shadow:var(--shadow-sm)}.download-button:hover,.download-button:focus-visible{background:var(--purple-600);color:var(--text-primary);border-color:var(--purple-500);transform:translateY(-1px);box-shadow:var(--shadow-md)}.download-button svg{flex-shrink:0}@media(max-width:968px){.split-layout{grid-template-columns:1fr;grid-template-rows:auto 1fr;overflow-y:auto}.controls-panel{border-right:none;border-bottom:1px solid var(--border-default);height:auto;overflow-y:visible}.code-panel{min-height:400px;height:auto}}@media(max-width:768px){header h1{font-size:1.75rem}header p{font-size:1rem}.file-upload{padding:var(--spacing-6)}.upload-text{font-size:var(--text-base)}.code-output{font-size:var(--text-xs);padding:var(--spacing-3)}.output-header{flex-direction:column;align-items:flex-start;gap:var(--spacing-3)}.button-group{width:100%;flex-direction:column;gap:var(--spacing-2)}.copy-button,.strudel-button{width:100%;text-align:center}.download-button{font-size:var(--text-sm);padding:var(--spacing-2) var(--spacing-4)}}