:root{--bg: #0b1020;--card: #141b2d;--border: #243049;--text: #e8edf7;--muted: #8b9bb8;--accent: #3b82f6;--green: #22c55e;--red: #ef4444}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text)}a{color:var(--accent)}.container{max-width:960px;margin:0 auto;padding:24px}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:24px}input,button,select{font:inherit;border-radius:8px;border:1px solid var(--border);background:#0f1524;color:var(--text);padding:10px 12px}button{background:var(--accent);border:none;cursor:pointer;font-weight:600}button.secondary{background:#243049}label{display:block;margin-bottom:6px;color:var(--muted);font-size:14px}.field{margin-bottom:16px}.error{color:var(--red);font-size:14px;margin-top:8px}.bot-last-result{white-space:pre-line;line-height:1.5;font-size:14px}.rent-duration-editor{margin-top:4px}.rent-duration-editor>label{margin-bottom:8px}.rent-bucket-grid{display:flex;flex-wrap:wrap;gap:8px 16px;margin-top:10px}.rent-bucket-item{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--text);margin-bottom:0;cursor:pointer}