:root{--ink-blue:#1f3a4d;--accent-orange:#f04e23;--paper:#f6f7f8}*{box-sizing:border-box}body,html{margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--paper);color:var(--ink-blue)}.calculator{max-width:480px;margin:3rem auto;padding:2rem;background:#fff;border-radius:8px;box-shadow:0 1px 4px rgba(0,0,0,.1)}.calculator h1{font-size:1.4rem;margin:0 0 1.5rem;text-align:center}.field{display:flex;flex-direction:column;gap:.4rem;margin-bottom:1.25rem}.field label{font-size:.85rem;font-weight:600}.field input{padding:.6rem .75rem;font-size:1rem;border:1px solid #ccd2d6;border-radius:4px;color:var(--ink-blue)}.field input:focus{outline:2px solid var(--accent-orange);outline-offset:-1px}.results{margin-top:1.75rem;display:flex;flex-direction:column;gap:.75rem}.result{display:flex;justify-content:space-between;align-items:center;padding:.75rem 1rem;background:var(--paper);border-radius:4px}.result-label{font-size:.85rem;font-weight:600}.result-value{font-size:1.1rem;font-weight:700;color:var(--accent-orange)}