:root{--bg: #f6f6f4;--panel: #ffffff;--ink: #141414;--muted: #6b6b6b;--line: #e4e4e0;--accent: #141414;--radius: 10px;font-family:Inter,Helvetica Neue,Arial,sans-serif;color:var(--ink)}*{box-sizing:border-box}html,body,#root{margin:0;height:100%;background:var(--bg)}button{font:inherit;color:inherit;cursor:pointer}button:disabled{opacity:.4;cursor:default}h2{font-size:17px;margin:0 0 10px;letter-spacing:-.01em;display:flex;align-items:center;gap:8px}h3{font-size:14px;margin:14px 0 6px}.hint{font-size:12px;color:var(--muted);margin:8px 0 0}.hint.error,.error{color:#b3261e}.app{height:100%;display:flex;flex-direction:column}.header{display:flex;align-items:center;gap:24px;padding:10px 18px;background:var(--panel);border-bottom:1px solid var(--line)}.brand{font-weight:900;letter-spacing:.12em;font-size:18px;color:inherit;text-decoration:none;white-space:nowrap}.brand 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