:root{--background:#f7fbff;--card:#ffffff;--primary-soft:#e1f0ff;--primary:#2f72a8;--primary-dark:#255c88;--primary-text:#123a56;--primary-border:#c8e0f5;--text:#123a56;--muted:#6b7280}body,html{margin:0;padding:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:var(--background);color:var(--primary-text);line-height:1.5}main{padding:1rem;max-width:800px;margin:0 auto;box-sizing:border-box}h1,h2,h3,h4,h5,h6{color:var(--primary-dark);margin-top:1.5rem;margin-bottom:.75rem}p{margin-bottom:1rem}button,input,select{font-size:1rem;box-sizing:border-box}label{display:block;margin-bottom:.25rem;font-weight:500}input[type=date],input[type=number],input[type=text],input[type=time],select{width:100%;padding:.5rem;margin-bottom:.75rem;border:1px solid var(--primary-border);border-radius:4px;background-color:var(--card);color:var(--primary-text)}button{padding:.5rem 1rem;background-color:var(--primary);color:#fff;border:none;border-radius:4px;cursor:pointer;margin-right:.5rem}button:disabled{background-color:var(--primary-border);cursor:not-allowed}.result{background-color:var(--primary-soft);padding:1rem;border-radius:4px;margin-bottom:1rem;border:1px solid var(--primary-border)}.result-row{display:flex;align-items:flex-start;flex-wrap:wrap;gap:.25rem 1rem;justify-content:space-between;margin-bottom:.5rem}.result-row strong{text-align:right}nav{background-color:var(--primary);padding:.75rem 1rem;display:flex;align-items:center;flex-wrap:wrap;gap:.5rem 1rem}nav,nav a{color:#fff}nav a{text-decoration:none;font-weight:500}nav a:hover{text-decoration:underline}.brand-link{color:#fff;font-size:1.125rem;font-weight:700;letter-spacing:0;margin-right:1.25rem;white-space:nowrap}.nav-links{display:flex;align-items:center;flex-wrap:wrap;gap:.5rem 1rem}.menu-button{display:none}@media (max-width:640px){nav{justify-content:space-between;padding:.5rem .875rem;gap:.35rem .75rem}.brand-link{font-size:1.0625rem;margin-right:0}.menu-button{display:inline-flex;align-items:center;justify-content:center;width:2.25rem;height:2.25rem;padding:0;margin:0;border:1px solid rgba(255,255,255,.55);border-radius:4px;background-color:rgba(255,255,255,.12);color:#fff}.menu-button:hover{background-color:rgba(255,255,255,.2)}.menu-button-lines{display:flex;width:1.15rem;flex-direction:column;gap:.22rem}.menu-button-lines span{display:block;height:2px;border-radius:999px;background-color:currentColor}.nav-links{display:none;flex-basis:100%;align-items:stretch;gap:.25rem;font-size:.9375rem;line-height:1.35}.nav-links.is-open{display:flex;flex-direction:column;padding-top:.35rem}.nav-links a{padding:.45rem 0}}footer{margin-top:2rem;padding:1rem;text-align:center;color:var(--muted);font-size:.875rem}