:root{--orange: #F7931A;--orange-dark: #D4760A;--black: #0A0A0A;--dark: #111111;--card: #1A1A1A;--white: #FFFFFF;--light: #E8E8E8;--muted: #888888;--radius: 12px;--max-w: 620px}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--black);color:var(--white);font-family:Segoe UI,system-ui,-apple-system,sans-serif;line-height:1.6;min-height:100vh}#app{max-width:var(--max-w);margin:0 auto;padding:24px 16px 60px}.progress{display:flex;gap:6px;margin-bottom:32px;align-items:center}.progress-dot{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;border:2px solid #333;color:#555;flex-shrink:0;transition:all .3s}.progress-dot.done{background:var(--orange);border-color:var(--orange);color:var(--black)}.progress-dot.active{border-color:var(--orange);color:var(--orange)}.progress-line{flex:1;height:2px;background:#222;transition:background .3s}.progress-line.done{background:var(--orange)}.btn{border:none;border-radius:var(--radius);padding:14px 28px;font-size:16px;font-weight:600;cursor:pointer;transition:all .15s;font-family:inherit}.btn:active{transform:scale(.98)}.btn-primary{background:var(--orange);color:var(--black)}.btn-primary:hover{background:var(--orange-dark)}.btn-secondary{background:transparent;color:var(--muted);border:1px solid #333}.btn-secondary:hover{border-color:#555;color:var(--light)}.btn-claude{background:#6b5ce7;color:#fff}.btn-claude:hover{background:#5a4bd6}.step-card{background:var(--dark);border:1px solid #1F1F1F;border-radius:16px;padding:28px 24px}.tag{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:4px 12px;border-radius:20px;background:#f7931a1f;color:var(--orange);margin-bottom:16px}.step-title{font-size:26px;font-weight:800;margin-bottom:8px;line-height:1.2}.step-desc{color:var(--muted);font-size:15px;margin-bottom:8px}.step-method{color:#444;font-size:12px;margin-bottom:24px}.q-block{margin-bottom:20px}.q-label{display:block;font-size:14px;font-weight:600;color:var(--light);margin-bottom:6px;line-height:1.4}.q-hint{display:block;font-size:12px;color:#555;margin-bottom:8px}textarea{width:100%;background:var(--card);border:1px solid #2A2A2A;border-radius:10px;padding:12px 14px;font-size:14px;color:var(--white);font-family:inherit;resize:vertical;min-height:90px;line-height:1.5;outline:none;transition:border-color .2s}textarea:focus{border-color:var(--orange)}textarea::placeholder{color:#444}.arch-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:16px}.arch-card{background:var(--card);border:2px solid #2A2A2A;border-radius:14px;padding:16px;cursor:pointer;transition:all .2s;text-align:left}.arch-card:hover{border-color:#444}.arch-card.selected{border-color:var(--orange);background:#f7931a14}.arch-icon{font-size:28px;margin-bottom:6px;display:block}.arch-name{font-size:14px;font-weight:700;color:var(--white);display:block}.arch-card.selected .arch-name{color:var(--orange)}.arch-desc{font-size:11px;color:var(--muted);margin-top:3px}.nav-row{display:flex;gap:10px;align-items:center;margin-top:28px}.nav-row .step-num{font-size:12px;color:#444;margin-left:auto}.welcome-icon{width:80px;height:80px;border-radius:50%;background:#f7931a26;display:flex;align-items:center;justify-content:center;margin:0 auto 24px;font-size:36px}.welcome h1{font-size:36px;font-weight:800;text-align:center;margin-bottom:8px;letter-spacing:-.02em}.welcome h1 span{color:var(--orange)}.welcome .subtitle{text-align:center;color:var(--muted);font-size:16px;max-width:420px;margin:0 auto 32px}.method-list{background:var(--dark);border:1px solid #1F1F1F;border-radius:14px;padding:20px 24px;margin-bottom:20px}.method-list h3{font-size:12px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;margin-bottom:14px}.method-item{display:flex;gap:10px;align-items:baseline;margin-bottom:10px;font-size:14px}.method-item:last-child{margin-bottom:0}.method-dot{width:6px;height:6px;border-radius:50%;background:var(--orange);flex-shrink:0;margin-top:6px}.method-name{font-weight:600;color:var(--light)}.method-sep{color:#444}.info-box{background:var(--card);border-left:3px solid var(--orange);border-radius:0 10px 10px 0;padding:14px 16px;margin-bottom:20px;font-size:13px;color:var(--muted);line-height:1.5}.time-box{background:var(--card);border-radius:12px;padding:14px 16px;margin-bottom:28px;font-size:13px;color:#666}.time-box span{color:var(--light);font-weight:600}.synth-card{border:1px solid #1F1F1F;border-radius:12px;padding:16px;margin-bottom:12px;background:var(--dark)}.synth-label{font-size:11px;font-weight:700;color:#555;text-transform:uppercase;letter-spacing:.06em;margin-bottom:8px}.synth-value{font-size:14px;color:var(--light);white-space:pre-line;line-height:1.6}.prompt-box{background:var(--card);border:1px solid #2A2A2A;border-radius:12px;padding:16px;margin:20px 0;max-height:200px;overflow-y:auto;font-size:12px;color:var(--muted);white-space:pre-wrap;line-height:1.5;font-family:Courier New,monospace}.copied-msg{color:var(--orange);font-size:13px;font-weight:600;text-align:center;margin-top:8px;opacity:0;transition:opacity .3s}.copied-msg.show{opacity:1}.footer{text-align:center;margin-top:48px;padding-top:24px;border-top:1px solid #1A1A1A}.footer-brand{font-size:12px;color:#333;letter-spacing:.03em}.footer-brand a{color:#555;text-decoration:none}.footer-brand a:hover{color:var(--orange)}.fade-in{animation:fadeIn .4s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.ai-dropdown{position:relative;display:block}.ai-dropdown summary:hover{background:#5a4bd6!important}.ai-dropdown summary::-webkit-details-marker{display:none}.ai-dropdown[open] summary{background:#5a4bd6!important}.ai-dropdown-menu a:hover{background:#f7931a1a;color:var(--orange)}.ai-dropdown-menu a:last-child{border-bottom:none}@media(max-width:480px){:global(#app){padding:16px 12px 48px}.welcome h1{font-size:28px}.step-title{font-size:22px}.arch-grid{grid-template-columns:1fr}.btn{padding:12px 20px;font-size:15px}}