:root{--paper:#f4f3ed;--white:#fffefa;--ink:#243b36;--muted:#6b7771;--line:#d9dfd6;--accent:#d8ef86;--dark:#183e32;--error:#8c3c29}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Segoe UI",sans-serif;font-size:14px;line-height:1.6}button,input,textarea,select{font:inherit}button,a,input,select,textarea{touch-action:manipulation}a{color:inherit}button{cursor:pointer;border:1px solid var(--dark);border-radius:6px;padding:10px 16px;background:var(--dark);color:white;font-weight:600;white-space:nowrap}button:hover:not(:disabled){background:#2f5848}button:disabled{opacity:.45;cursor:not-allowed}button.secondary{background:transparent;color:var(--ink);border-color:#a9b8ac}button.quiet{background:transparent;color:var(--ink);border-color:transparent;padding:6px 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