*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --primary:#F59E0B;--primary-light:#FCD34D;--accent:#D97706;
  --ts-blue:#3178C6;--ts-light:#7AA2F7;
  --bg:#0B0E11;--bg-card:rgba(20,24,32,.85);--bg-input:rgba(15,18,25,.8);
  --text:#F0EDE6;--text-dim:#A89F8E;--text-muted:#6B6357;
  --border:rgba(245,158,11,.12);--success:#00B894;--danger:#FF6B6B;
  --radius:12px;--radius-sm:8px;
  --font:'Inter',-apple-system,system-ui,sans-serif;
  --mono:'JetBrains Mono','Consolas',monospace;
  --glass-bg:rgba(20,24,32,.6);--glass-border:rgba(255,255,255,.06)
}
body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh;-webkit-font-smoothing:antialiased}
body::before{content:'';position:fixed;inset:0;background:radial-gradient(ellipse at 25% 15%,rgba(245,158,11,.06) 0%,transparent 50%),radial-gradient(ellipse at 75% 80%,rgba(49,120,198,.05) 0%,transparent 50%);pointer-events:none}
.app{position:relative;z-index:1;max-width:860px;margin:0 auto}
.header{padding:1rem 1.5rem;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.header h1{font-size:1rem;font-weight:700;background:linear-gradient(135deg,var(--primary),var(--ts-blue));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.subtitle{font-size:.72rem;color:var(--text-dim)}
.steps-bar{display:flex;gap:0;padding:.5rem 1.5rem;overflow-x:auto}
.step-btn{flex:1;padding:.4rem .5rem;font-size:.68rem;font-weight:600;font-family:var(--font);background:transparent;border:none;border-bottom:2px solid transparent;color:var(--text-muted);cursor:pointer;transition:all 200ms;white-space:nowrap}
.step-btn.active{color:var(--primary);border-bottom-color:var(--primary)}
.step-btn.done{color:var(--success);border-bottom-color:var(--success)}
.progress{height:3px;background:rgba(255,255,255,.05);margin:0 1.5rem}
.progress-fill{height:100%;background:linear-gradient(90deg,var(--primary),var(--ts-blue));border-radius:2px;transition:width 400ms ease}
.main{padding:1.5rem}
.panel{background:var(--glass-bg);backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:var(--radius);padding:1.25rem;margin-bottom:1rem}
.section-title{font-size:.85rem;font-weight:700;color:var(--primary-light);margin-bottom:.75rem}
.code-editor{width:100%;padding:.5rem;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-family:var(--mono);font-size:.78rem;resize:vertical;line-height:1.5;tab-size:2}
.code-editor:focus{outline:none;border-color:var(--primary)}
.code-block{padding:.5rem;background:var(--bg-input);border:1px solid var(--glass-border);border-radius:var(--radius-sm);font-family:var(--mono);font-size:.72rem;color:var(--text-dim);overflow-x:auto;white-space:pre;line-height:1.5;max-height:300px;overflow-y:auto}
.code-block.ts{border-color:rgba(49,120,198,.2);color:var(--ts-light)}
.code-block.tsconfig{border-color:rgba(245,158,11,.15)}
.diff-wrap{display:grid;grid-template-columns:1fr 1fr;gap:.5rem;margin-bottom:.75rem}
.diff-label{font-size:.68rem;font-weight:600;color:var(--text-muted);margin-bottom:.25rem}
.diff-label.ts{color:var(--ts-light)}
.ctrl-row{display:flex;gap:.35rem;margin-top:.5rem;flex-wrap:wrap}
.ctrl-grid{display:grid;grid-template-columns:1fr 1fr;gap:.5rem;margin-bottom:.75rem}
.ctrl-label{font-size:.72rem;font-weight:600;color:var(--text-muted);display:flex;flex-direction:column;gap:.2rem}
.select{padding:.35rem .5rem;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-size:.78rem;font-family:var(--font)}
.tips-list{display:flex;flex-direction:column;gap:.25rem;margin-bottom:.5rem}
.tip{padding:.4rem .5rem;background:rgba(245,158,11,.06);border:1px solid rgba(245,158,11,.12);border-left:3px solid var(--primary);border-radius:var(--radius-sm);font-size:.72rem;color:var(--text-dim)}
.checklist{display:flex;flex-direction:column;gap:.2rem}
.check-item{display:flex;align-items:center;gap:.35rem;padding:.35rem .5rem;background:rgba(255,255,255,.02);border-radius:var(--radius-sm);font-size:.72rem}
.check-item input{accent-color:var(--primary)}
.utils-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:.25rem}
.util-card{padding:.35rem .5rem;background:rgba(49,120,198,.06);border:1px solid rgba(49,120,198,.12);border-radius:var(--radius-sm);font-family:var(--mono);font-size:.68rem;color:var(--ts-light);text-align:center}
.btn{display:inline-flex;align-items:center;gap:.25rem;padding:.4rem .75rem;border:none;border-radius:var(--radius-sm);font-size:.78rem;font-weight:600;font-family:var(--font);cursor:pointer;transition:all 200ms}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--ts-blue));color:#fff}
.btn-primary:hover{transform:translateY(-1px)}
.btn-accent{background:rgba(245,158,11,.15);color:var(--primary);border:1px solid rgba(245,158,11,.2)}
.footer{padding:1rem 1.5rem;text-align:center;font-size:.72rem;color:var(--text-muted);border-top:1px solid var(--border)}
.toast-container{position:fixed;bottom:1.5rem;right:1.5rem;z-index:200;display:flex;flex-direction:column;gap:.5rem}
.toast{background:var(--bg-card);border:1px solid var(--border);border-left:3px solid var(--primary);backdrop-filter:blur(20px);border-radius:var(--radius-sm);padding:.6rem .85rem;font-size:.78rem;color:var(--text);box-shadow:0 8px 40px rgba(0,0,0,.4);animation:slideIn 300ms ease}
@keyframes slideIn{from{opacity:0;transform:translateX(20px)}to{opacity:1;transform:translateX(0)}}
::-webkit-scrollbar{width:5px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:rgba(245,158,11,.2);border-radius:3px}
@media(max-width:640px){.diff-wrap{grid-template-columns:1fr}.ctrl-grid{grid-template-columns:1fr}}