:root{--color-primary:#d32f2f;--color-accent:#1a1a1a;--color-bg:#f8f9fa;--color-bg-dark:#1e1e1e;--color-text:#333;--color-text-light:#eee;--radius:8px;--transition:all 0.2s ease-in-out}*,:after,:before{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--color-bg);color:var(--color-text);line-height:1.5;min-height:100vh}a{color:var(--color-primary);text-decoration:none;transition:var(--transition)}a:hover{opacity:.8}button{cursor:pointer;font-family:inherit;background:var(--color-primary);color:#fff;border:none;padding:.75rem 1.5rem;border-radius:var(--radius);transition:var(--transition)}button:hover{background:var(--color-accent)}