:root{--ink:#10231f;--muted:#5c6d68;--paper:#f8f7f1;--card:#fff;--line:#dce3dd;--accent:#13795b;--accent2:#dff4e8}*{box-sizing:border-box}body{background:var(--paper);color:var(--ink);margin:0;font:16px/1.55 Arial,sans-serif}a{color:inherit}main{max-width:1120px;margin:auto;padding:32px 20px 72px}header{border-bottom:1px solid var(--line);background:#fff}nav{flex-wrap:wrap;align-items:center;gap:18px;max-width:1120px;margin:auto;padding:16px 20px;display:flex}.brand{margin-right:auto;font-weight:800;text-decoration:none}.eyebrow{color:var(--accent);text-transform:uppercase;letter-spacing:.08em;font-size:.78rem;font-weight:700}h1{max-width:900px;font-size:clamp(2.2rem,5vw,4rem);line-height:1.08}h2{margin-top:44px;line-height:1.2}.lede{max-width:760px;color:var(--muted);font-size:1.2rem}.grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;display:grid}.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px}.button{background:var(--accent);color:#fff;border-radius:8px;padding:11px 16px;font-weight:700;text-decoration:none;display:inline-block}.notice{background:var(--accent2);border-left:4px solid var(--accent);border-radius:4px;padding:14px 16px}label{margin:12px 0 5px;font-weight:700;display:block}input,select{background:#fff;border:1px solid #aebbb4;border-radius:7px;width:100%;padding:10px}button{background:var(--accent);color:#fff;cursor:pointer;border:0;border-radius:8px;padding:11px 16px;font-weight:700}.result{background:#eef8f2;border-radius:8px;margin-top:18px;padding:16px}footer{border-top:1px solid var(--line);color:var(--muted);max-width:1120px;margin:auto;padding:24px 20px}.small{color:var(--muted);font-size:.88rem}table{border-collapse:collapse;-webkit-overflow-scrolling:touch;background:#fff;width:100%;display:block;overflow-x:auto}td,th{border:1px solid var(--line);text-align:left;padding:10px}@media (max-width:600px){nav{gap:11px;font-size:.9rem}}