:root{--brand:#c84b31;--brand-dark:#a83c26;--bg:#fdfbf7;--card:#ffffff;--text:#2d3142;--muted:#6b7280;--border:#e7e2d8;--error-bg:#fdecea;--error-text:#9b1c1c}*{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5}.shell{min-height:100dvh;display:grid;place-items:center;padding:24px}.card{width:100%;max-width:380px;background:var(--card);border:1px solid var(--border);border-radius:16px;padding:32px;box-shadow:0 6px 24px rgba(45,49,66,.06)}.brand{font-weight:700;color:var(--brand);letter-spacing:-.01em;margin-bottom:20px;font-size:15px}h1{font-size:22px;margin:0 0 6px;letter-spacing:-.02em}.muted{color:var(--muted);font-size:14px;margin:4px 0}.stack{gap:14px;margin-top:20px}.stack,label{display:flex;flex-direction:column}label{gap:6px;font-size:13px;font-weight:600}input,label{color:var(--text)}input{font:inherit;padding:10px 12px;border:1px solid var(--border);border-radius:10px;background:#fff}input:focus{outline:2px solid color-mix(in srgb,var(--brand) 45%,transparent);border-color:var(--brand)}button{font:inherit;font-weight:600;padding:11px 14px;border-radius:10px;border:1px solid transparent;background:var(--brand);color:#fff;cursor:pointer}button:hover:not(:disabled){background:var(--brand-dark)}button:disabled{opacity:.6;cursor:default}button.secondary{background:#fff;color:var(--text);border-color:var(--border)}.error{background:var(--error-bg);color:var(--error-text);font-size:13px;padding:10px 12px;border-radius:10px}a{color:var(--brand);font-weight:600;text-decoration:none}a:hover{text-decoration:underline}.scopes{list-style:none;padding:0;margin:12px 0;display:flex;flex-direction:column;gap:6px}.scopes li{font-size:13px;color:var(--text);padding:8px 12px;background:var(--bg);border:1px solid var(--border);border-radius:8px}.row{display:flex;gap:10px}.row button{flex:1 1}