:root{color-scheme:light;font-family:IBM Plex Sans,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5;font-weight:400;color:#1a1f16;background:#f3f5f0}*{box-sizing:border-box}body{margin:0;min-height:100vh}#root{min-height:100vh}.shell{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem 1rem;background:radial-gradient(circle at top left,rgba(61,107,58,.12),transparent 40%),radial-gradient(circle at bottom right,rgba(36,72,85,.1),transparent 45%),#f3f5f0}.card{width:min(420px,100%);background:#fff;border:1px solid #d7ddd0;border-radius:12px;padding:2rem;box-shadow:0 12px 40px #1a1f160f}.brand{margin:0 0 .25rem;font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;color:#5c6b57}h1{margin:0 0 .75rem;font-size:1.5rem;font-weight:650}p{margin:0 0 1.25rem;color:#44503f}button{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid #2f5d3a;background:#2f5d3a;color:#fff;border-radius:8px;padding:.75rem 1rem;font:inherit;font-weight:600;cursor:pointer;width:100%}button:disabled{opacity:.65;cursor:not-allowed}button.secondary{background:transparent;color:#2f5d3a}.error{margin-top:1rem;color:#8a1f1f;font-size:.9rem}.muted{color:#6a7564;font-size:.875rem}.stack{display:grid;gap:.75rem}