:root{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;line-height:1.5;font-weight:400;color:#e2e8f0;background-color:#0f172a;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;min-height:100vh;background-color:#0f172a}#root{min-height:100vh}h1,h2,h3,h4,h5,h6{margin:0;font-weight:500}p{margin:0}input,button,textarea,select{font-family:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.6}:root{--bg-color: #0a0a0a;--card-bg: #111111;--accent-color: #ffffff;--text-primary: #e5e5e5;--text-secondary: #737373;--border-color: #262626;--font-main: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "JetBrains Mono", "SF Mono", "Fira Code", monospace}*{box-sizing:border-box}body{margin:0;padding:0;background-color:var(--bg-color);color:var(--text-primary);font-family:var(--font-main);min-height:100vh;-webkit-font-smoothing:antialiased}.app{max-width:720px;margin:0 auto;padding:4rem 1.5rem}.header{text-align:center;margin-bottom:3rem}.header h1{font-size:2rem;font-weight:600;margin:0 0 .5rem;color:var(--text-primary);letter-spacing:-.03em}.header p{font-size:.95rem;color:var(--text-secondary);font-weight:400;margin:0}.tabs{display:flex;gap:.25rem;margin-bottom:2rem;border-bottom:1px solid var(--border-color);padding-bottom:0}.tab{background:transparent;border:none;padding:.75rem 1rem;font-size:.875rem;font-weight:500;color:var(--text-secondary);cursor:pointer;position:relative;transition:color .15s ease}.tab:hover,.tab.active{color:var(--text-primary)}.tab.active:after{content:"";position:absolute;bottom:-1px;left:0;right:0;height:1px;background:var(--text-primary)}.feature{animation:fadeIn .3s ease-out}.input-section{background:var(--card-bg);padding:1.5rem;border-radius:.5rem;border:1px solid var(--border-color);margin-bottom:1.5rem}.input-section label{display:block;margin-bottom:.5rem;font-weight:500;color:var(--text-secondary);font-size:.8rem;text-transform:uppercase;letter-spacing:.04em}.input{width:100%;padding:.75rem 1rem;background:var(--bg-color);border:1px solid var(--border-color);border-radius:.375rem;color:var(--text-primary);font-size:.9rem;font-family:var(--font-mono);transition:border-color .15s ease;margin-bottom:1rem}.input:focus{outline:none;border-color:#404040}.input::placeholder{color:#525252}.textarea{resize:vertical;min-height:120px;line-height:1.6}.button{background:var(--text-primary);color:var(--bg-color);border:none;padding:.75rem 1.5rem;border-radius:.375rem;font-size:.875rem;font-weight:500;cursor:pointer;width:100%;transition:opacity .15s ease}.button:hover{opacity:.9}.button:active{opacity:.8}.button.loading{opacity:.6;cursor:wait}.help-text{margin:1rem 0;padding:1rem;background:transparent;border-left:2px solid var(--border-color);color:var(--text-secondary);font-size:.85rem}.help-text p{margin:0 0 .5rem}.help-text ul{margin:.5rem 0;padding-left:1.25rem}.help-text li{margin-bottom:.25rem}.help-text code{background:var(--bg-color);padding:.15rem .4rem;border-radius:.25rem;color:var(--text-primary);font-family:var(--font-mono);font-size:.85em;border:1px solid var(--border-color)}.result{background:var(--card-bg);padding:1.5rem;border-radius:.5rem;border:1px solid var(--border-color);animation:fadeIn .3s ease-out}.result.error{border-color:#7f1d1d}.result.error .result-content{color:#fca5a5}.result h3{margin:0 0 1rem;color:var(--text-secondary);font-size:.75rem;text-transform:uppercase;letter-spacing:.05em;font-weight:500}.result-content{font-family:var(--font-mono);font-size:1.125rem;color:var(--text-primary);background:var(--bg-color);padding:1rem;border-radius:.375rem;border:1px solid var(--border-color);margin-bottom:0}.steps-container{margin-top:1.5rem;padding-top:1.5rem;border-top:1px solid var(--border-color)}.steps-container h4{color:var(--text-secondary);margin:0 0 1rem;font-weight:500;text-transform:uppercase;letter-spacing:.05em;font-size:.75rem}.steps-list{list-style:none;padding:0;margin:0}.step-item{position:relative;padding-left:1.5rem;padding-bottom:1rem;border-left:1px solid var(--border-color);margin-left:.5rem;animation:fadeIn .3s ease-out backwards}.step-item:last-child{border-left-color:transparent;padding-bottom:0}.step-marker{position:absolute;left:-4px;top:0;width:7px;height:7px;border-radius:50%;background:var(--border-color);border:none}.step-item:last-child .step-marker{background:var(--text-primary)}.step-content{background:transparent;padding:0;font-family:var(--font-mono);font-size:.85rem;color:var(--text-secondary)}.step-item:last-child .step-content{color:var(--text-primary)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@media (max-width: 640px){.app{padding:2rem 1rem}.header h1{font-size:1.5rem}.tabs{flex-direction:column;border-bottom:none;gap:0}.tab{text-align:left;border-bottom:1px solid var(--border-color)}.tab.active:after{display:none}.tab.active{background:var(--card-bg)}.input-section,.result{padding:1rem}}.warmup-bar{display:flex;align-items:center;justify-content:center;gap:.75rem;padding:.75rem 1rem;margin-bottom:1.5rem;border-radius:.375rem;font-size:.875rem;transition:background-color .3s ease,border-color .3s ease}.warmup-bar.loading{background:#eab3081a;border:1px solid rgba(234,179,8,.3);color:#fbbf24}.warmup-bar.ready{background:#22c55e1a;border:1px solid rgba(34,197,94,.3);color:#4ade80}.warmup-spinner{width:14px;height:14px;border:2px solid rgba(251,191,36,.3);border-top-color:#fbbf24;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}