/*! normalize.css v8.0.1 | MIT License */html{line-height:1.15;-webkit-text-size-adjust:100%}body{margin:0}h1{font-size:2em;margin:0.67em 0}hr{box-sizing:content-box;height:0;overflow:visible}pre{font-family:monospace,monospace;font-size:1em}a{background-color:transparent}abbr[title]{border-bottom:none;text-decoration:underline;text-decoration:underline dotted}b,strong{font-weight:bolder}code,kbd,samp{font-family:monospace,monospace;font-size:1em}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sub{bottom:-0.25em}sup{top:-0.5em}img{border-style:none}button,input,optgroup,select,textarea{font-family:inherit;font-size:100%;line-height:1.15;margin:0}button,input{overflow:visible}button,select{text-transform:none}button,[type="button"],[type="reset"],[type="submit"]{-webkit-appearance:button}button::-moz-focus-inner,[type="button"]::-moz-focus-inner,[type="reset"]::-moz-focus-inner,[type="submit"]::-moz-focus-inner{border-style:none;padding:0}button:-moz-focusring,[type="button"]:-moz-focusring,[type="reset"]:-moz-focusring,[type="submit"]:-moz-focusring{outline:1px dotted ButtonText}fieldset{padding:0.35em 0.75em 0.625em}legend{box-sizing:border-box;color:inherit;display:table;max-width:100%;padding:0;white-space:normal}progress{vertical-align:baseline}textarea{overflow:auto}[type="checkbox"],[type="radio"]{box-sizing:border-box;padding:0}[type="number"]::-webkit-inner-spin-button,[type="number"]::-webkit-outer-spin-button{height:auto}[type="search"]{-webkit-appearance:textfield;outline-offset:-2px}[type="search"]::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}details{display:block}summary{display:list-item}[hidden]{display:none}

/* Platform Slider */
.platform-slider{display:inline-block;position:relative;overflow:hidden;height:1.2em;vertical-align:bottom}#platform-name{display:inline-block;white-space:nowrap;transform:translateY(0);transition:transform 300ms ease,opacity 300ms ease}#platform-name.slide-out{transform:translateY(-100%);opacity:0}#platform-name.slide-in{transform:translateY(100%);opacity:0}

/* Main Styles */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}:root{--bg:#0c0c0e;--surface:#141416;--surface2:#1c1c20;--border:#252528;--accent:#a78bfa;--accent-dim:#3b2f6e;--text:#e8e8ec;--text-dim:#5a5a6a;--success:#4ade80;--error:#f87171;--warn:#fbbf24;--mono:'JetBrains Mono','Fira Code','Cascadia Code',monospace}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;min-height:100vh;display:flex;flex-direction:column;align-items:center;padding:2.5rem 1rem 5rem}header{text-align:center;margin-bottom:2.5rem}.logo{display:flex;align-items:center;justify-content:center;gap:0.6rem;margin-bottom:0.4rem}.logo-icon{font-size:2rem;line-height:1}.logo-retro{color:#fff}header h1{font-family:var(--mono);font-size:clamp(2rem,6vw,3rem);font-weight:800;letter-spacing:-0.04em;color:#5b21b6;background:none;-webkit-background-clip:unset;-webkit-text-fill-color:unset;background-clip:unset}header p{color:var(--text-dim);font-size:0.88rem;margin-top:0.3rem}.badges{display:flex;justify-content:center;gap:0.5rem;flex-wrap:wrap;margin-top:0.9rem}.badge{display:inline-flex;align-items:center;gap:0.35rem;background:var(--surface2);border:1px solid var(--border);color:var(--text-dim);font-family:var(--mono);font-size:0.68rem;padding:0.22rem 0.6rem;border-radius:999px}.badge.green{color:var(--success);border-color:#14532d;background:#052e16}.badge.purple{color:var(--accent);border-color:var(--accent-dim);background:#1e1b4b}.card{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:1.5rem;width:100%;max-width:640px;margin-bottom:1rem}.drop-zone{border:2px dashed var(--border);border-radius:10px;padding:2.5rem 2rem;text-align:center;cursor:pointer;transition:border-color 0.15s,background 0.15s;position:relative}.drop-zone:hover,.drop-zone.drag-over{border-color:var(--accent);background:rgba(167,139,250,0.04)}.drop-zone input[type="file"]{position:absolute;inset:0;opacity:0;cursor:pointer}.drop-icon{font-size:2.2rem;display:block;margin-bottom:0.6rem}.drop-label{font-size:0.9rem;color:var(--text);margin-bottom:0.3rem}.drop-hint{font-size:0.75rem;color:var(--text-dim);font-family:var(--mono)}.file-info{display:none;align-items:center;gap:0.75rem;padding:0.75rem 1rem;background:rgba(167,139,250,0.05);border:1px solid var(--accent-dim);border-radius:8px;margin-top:1rem}.file-info.visible{display:flex}.file-icon{font-size:1.4rem}.file-details{flex:1;min-width:0}.file-name{font-family:var(--mono);font-size:0.8rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-right:1em}.file-size{font-size:0.72rem;color:var(--text-dim);margin-top:0.2rem}.btn-clear{background:none;border:none;color:var(--text-dim);cursor:pointer;font-size:1.1rem;padding:0.25rem;border-radius:4px;transition:color 0.1s;line-height:1}.btn-clear:hover{color:var(--error)}.options{display:grid;grid-template-columns:1fr 1fr;gap:0.75rem;margin-top:1rem}.option-group label{display:block;font-size:0.68rem;color:var(--text-dim);margin-bottom:0.35rem;font-family:var(--mono);text-transform:uppercase;letter-spacing:0.07em}.option-group select{width:100%;background:var(--bg);border:1px solid var(--border);color:var(--text);border-radius:7px;padding:0.5rem 2rem 0.5rem 0.75rem;font-size:0.82rem;font-family:var(--mono);appearance:none;cursor:pointer;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 10 10'%3E%3Cpath fill='%235a5a6a' d='M5 7L0 2h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 0.75rem center}.option-group select:focus{outline:none;border-color:var(--accent)}#platform{width:100%;max-width:640px;background:var(--bg);border:1px solid var(--border);color:var(--text);border-radius:7px;padding:0.75rem 2rem 0.75rem 0.75rem;font-size:0.88rem;font-family:var(--mono);appearance:none;cursor:pointer;margin-bottom:1.5rem;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 10 10'%3E%3Cpath fill='%235a5a6a' d='M5 7L0 2h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 0.75rem center;transition:border-color 0.15s,background-color 0.15s}#platform:hover{border-color:var(--accent-dim)}#platform:focus{outline:none;border-color:var(--accent);background-color:var(--surface)}#platform optgroup{color:var(--text);background:var(--surface)}#platform optgroup::before{content:"";font-weight:bold}.btn-convert{width:100%;margin-top:1.25rem;padding:0.85rem;background:#5b21b6;color:#fff;border:none;border-radius:9px;font-size:0.92rem;font-weight:700;font-family:var(--mono);cursor:pointer;transition:opacity 0.15s,transform 0.1s;letter-spacing:0.03em}.btn-convert:hover:not(:disabled){opacity:0.88}.btn-convert:active:not(:disabled){transform:scale(0.99)}.btn-convert:disabled{opacity:0.3;cursor:not-allowed}.info-row{display:flex;gap:0.5rem;align-items:flex-start;padding:0.65rem 0.9rem;background:rgba(167,139,250,0.04);border-left:2px solid var(--accent-dim);border-radius:0 6px 6px 0;font-size:0.75rem;color:var(--text-dim);margin-top:0.85rem;line-height:1.5}.progress-card{display:none}.progress-card.visible{display:block}.progress-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:0.7rem}.progress-label{font-family:var(--mono);font-size:0.78rem;color:var(--text-dim)}.progress-pct{font-family:var(--mono);font-size:0.78rem;color:var(--accent)}.progress-bar-track{height:3px;background:var(--border);border-radius:999px;overflow:hidden}.progress-bar-fill{height:100%;background:linear-gradient(90deg,#7c3aed,#a78bfa);border-radius:999px;width:0%;transition:width 0.3s ease}.log{margin-top:1rem;font-family:var(--mono);font-size:0.72rem;color:var(--text-dim);max-height:130px;overflow-y:auto;line-height:1.7}.log-line.ok{color:var(--success)}.log-line.err{color:var(--error)}.log-line.warn{color:var(--warn)}.result-card{display:none}.result-card.visible{display:block}.result-inner{display:flex;align-items:center;gap:1rem}.result-icon{font-size:1.8rem}.result-details{flex:1}.result-name{font-family:var(--mono);font-size:0.82rem;margin-bottom:0.3rem}.result-meta{font-size:0.73rem;color:var(--text-dim)}.result-meta strong{color:var(--success)}.btn-download{background:var(--success);color:#052e16;border:none;border-radius:7px;padding:0.6rem 1.1rem;font-size:0.8rem;font-weight:800;font-family:var(--mono);cursor:pointer;transition:opacity 0.15s;white-space:nowrap}.btn-download:hover{opacity:0.85}footer{margin-top:3rem;font-size:0.72rem;color:var(--text-dim);text-align:center;font-family:var(--mono);line-height:1.4}footer a{color:var(--text-dim);text-decoration:none}footer a:hover{color:var(--accent)}@media (max-width:480px){.options{grid-template-columns:1fr}.result-inner{flex-direction:column;align-items:flex-start}}