:root{--bg: #ffffff;--text: #111827;--muted: #6b7280;--border: #e5e7eb;--primary: #111827;--primaryText: #ffffff}*{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji";background:var(--bg);color:var(--text)}.page{max-width:860px;margin:0 auto;padding:24px 16px}.header{margin-bottom:16px}.brand{font-size:20px;font-weight:700;letter-spacing:.2px}.subtitle{margin-top:6px;font-size:14px;color:var(--muted)}.card{border:1px solid var(--border);border-radius:12px;padding:16px}.label{display:block;font-size:13px;color:var(--muted);margin:10px 0 6px}.textarea{width:100%;resize:vertical;border:1px solid var(--border);border-radius:10px;padding:12px;font-size:14px;line-height:1.5;outline:none}.textarea:focus{border-color:#c7cbd1}.primary{width:100%;margin-top:12px;border:0;border-radius:10px;padding:12px;background:var(--primary);color:var(--primaryText);font-size:14px;cursor:pointer}.primary:disabled{opacity:.6;cursor:not-allowed}.hint{margin-top:14px;font-size:13px;color:var(--muted)}.row{display:flex;align-items:center;gap:12px;margin-top:10px}.secondary{border:1px solid var(--border);border-radius:10px;padding:10px 12px;background:#fff;font-size:14px;cursor:pointer}.secondary:disabled{opacity:.6;cursor:not-allowed}.status{font-size:13px;color:var(--muted)}.error{margin-top:10px;font-size:13px;color:#b91c1c}.footer{margin-top:14px;font-size:12px;color:var(--muted)}