:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:#1d261b;background:#f4f6e8;line-height:1.5}*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at top left,#d9f7ff 0,#f4f6e8 32rem)}a{color:#256f71}main{max-width:1120px;margin:0 auto;padding:22px 18px 56px}.site-nav{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:16px;margin:0 0 24px;padding:12px 16px;background:rgba(255,255,255,.9);border:1px solid #dfe5cb;border-radius:24px;box-shadow:0 10px 24px rgba(50,64,37,.08);backdrop-filter:blur(12px)}.site-brand{display:inline-flex;align-items:center;gap:10px;color:#172033;text-decoration:none;font-weight:800}.brand-mark{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:12px;background:#172033;color:#fff;font-weight:900}.site-nav a:not(.site-brand){color:#536244;text-decoration:none;font-weight:700;font-size:.95rem}.site-nav a:hover{text-decoration:underline}.hero{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(280px,.65fr);gap:22px;align-items:stretch;padding:30px 0 36px}.eyebrow{display:inline-flex;margin:0 0 14px;padding:8px 12px;border-radius:999px;background:#fff;border:1px solid #dfe5cb;color:#237477;font-weight:850;font-size:.85rem}.hero h1{font-size:clamp(2.15rem,5.8vw,4.55rem);letter-spacing:-.06em;line-height:.96;margin:0 0 18px;color:#1d261b}.intro{font-size:1.16rem;max-width:700px;color:#58624c;margin:0}.result-card,.panel{background:rgba(255,255,255,.96);border:1px solid #dfe5cb;box-shadow:0 18px 50px rgba(50,64,37,.11);border-radius:28px}.result-card{padding:24px;display:flex;flex-direction:column;justify-content:center;min-height:220px}.label,.metrics span{color:#737c66;text-transform:uppercase;letter-spacing:.08em;font-weight:850;font-size:.76rem}.result-card strong{display:block;font-size:clamp(2.35rem,7vw,4.25rem);letter-spacing:-.07em;color:#237477;margin:8px 0}.result-card span:last-child{color:#596150;font-weight:700}.calculator{display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,.92fr);gap:22px;align-items:start}.panel{padding:24px}.field-group{display:grid;gap:16px;margin-bottom:16px}.field-group.two{grid-template-columns:repeat(2,minmax(0,1fr))}label{display:grid;gap:7px;color:#46513d;font-weight:800}input,select{width:100%;border:1px solid #cfd8bd;border-radius:16px;background:#fbfcf6;color:#1f261b;padding:12px 13px;font:inherit;font-weight:750;outline:none}input:focus,select:focus{border-color:#49a1a4;box-shadow:0 0 0 4px rgba(73,161,164,.16)}.results h2,.content h2{margin-top:0;color:#1d261b;letter-spacing:-.03em}.metrics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.metrics div{padding:14px;border-radius:18px;background:#f5f8ec;border:1px solid #e4ead3}.metrics strong{display:block;margin-top:5px;font-size:1.32rem;letter-spacing:-.04em;color:#1f4f51}.tip{margin:18px 0 0;padding:14px 16px;border-radius:18px;background:#e8f8fb;color:#275c60;font-weight:750}.content{margin-top:22px;color:#424b3a}.content p,.content li{font-size:1rem}.content ul{padding-left:1.2rem}.content details{border-top:1px solid #e0e6cf;padding:14px 0}.content details:last-child{border-bottom:1px solid #e0e6cf}.content summary{cursor:pointer;font-weight:850;color:#1f261b}footer{text-align:center;color:#727967;margin-top:34px;font-weight:700}@media (max-width:820px){main{padding:16px 14px 42px}.site-nav{border-radius:18px}.hero,.calculator{grid-template-columns:1fr;padding-top:12px}.hero h1{font-size:clamp(2.05rem,13vw,3.3rem)}.field-group.two,.metrics{grid-template-columns:1fr}.result-card{min-height:auto}.panel{padding:20px}}