:root{--ink:#172a35;--muted:#62717b;--green:#103b36;--lime:#b5eb5c;--line:#dce3e5;--pale:#f3f6f8;--white:#fff;font-family:Tahoma,Arial,sans-serif;color:var(--ink);background:var(--white);font-synthesis:none}*{box-sizing:border-box}body{margin:0;font-size:16px;line-height:1.8}a{color:inherit;text-decoration:none}a:hover{color:var(--green)}button,input,select{font:inherit}button,a,input,select,summary{touch-action:manipulation}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #398a70;outline-offset:3px}button:disabled{opacity:.5;cursor:wait}.wrap{width:min(1120px,calc(100% - 48px));margin-inline:auto}.skip-link{position:absolute;top:-80px;background:var(--green);color:#fff;padding:12px;z-index:10}.skip-link:focus{top:0}.site-header{border-bottom:1px solid var(--line);background:#fff}.header-inner{width:min(1240px,calc(100% - 48px));margin:auto;display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:92px}.brand{display:flex;align-items:center;gap:12px;font-size:25px;font-weight:700;white-space:nowrap;line-height:1.3}.brand-mark{height:42px;width:42px;background:var(--green);color:var(--lime);border-radius:11px;display:grid;place-items:center;font-size:29px}.brand-and{font-weight:400;color:#718d83}.site-header nav{display:flex;gap:25px;align-items:center;font-size:14px;font-weight:700}.site-header nav a{padding-block:12px;border-bottom:2px solid transparent}.site-header nav a[aria-current]{color:var(--green);border-color:var(--green)}.header-label{font-size:13px;color:var(--muted);border:1px solid var(--line);padding:4px 13px;border-radius:100px}.hero-layout{display:grid;grid-template-columns:.88fr 1.12fr;gap:72px;align-items:start;padding-block:64px 48px}.intro{padding-top:36px}.eyebrow{font-size:14px;font-weight:700;color:#366d5d;margin:0 0 18px}.intro h1{font-size:clamp(40px,5vw,64px);line-height:1.4;letter-spacing:-1.5px;margin:0 0 22px;font-weight:700}.lead{font-size:19px;line-height:2;color:var(--muted);max-width:410px}.intro-note{display:flex;gap:16px;align-items:center;margin-top:36px;border-top:1px solid var(--line);padding-top:22px}.intro-note>span{font-size:32px;color:var(--green)}.intro-note p{margin:0;font-size:15px}.intro-note small{font-size:13px;color:var(--muted)}.intro-links{display:flex;gap:20px;margin-top:25px;font-size:14px;font-weight:700}.intro-links a{border-bottom:1px solid #b6c7bf}.calculator{border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:0 12px 35px #182a3510;overflow:hidden}.panel-top{background:var(--green);color:#fff;display:flex;gap:16px;padding:24px 28px;align-items:center}.panel-top h2{font-size:23px;line-height:1.5;margin:0}.panel-top p{margin:4px 0 0;font-size:13px;color:#d3e2dc}.tool-symbol{font-size:34px;color:var(--lime);line-height:1.2}form{padding:24px 28px 20px}.date-group{border:0;padding:0;margin:0 0 18px;min-width:0}.date-group legend{font-size:16px;font-weight:700;margin-bottom:12px}.calendar-label{display:grid;grid-template-columns:auto 1fr;align-items:center;gap:14px;font-size:14px;margin-bottom:14px}.date-inputs{display:grid;grid-template-columns:.7fr 1.6fr 1fr;gap:12px}.date-inputs label{font-size:14px;display:grid;gap:6px;min-width:0}input:not([type=checkbox]),select{min-height:48px;border:1px solid #c8d3d6;background:#fff;color:var(--ink);border-radius:8px;padding:8px 10px;width:100%;min-width:0}input:not([type=checkbox]){direction:ltr;text-align:center}select{font-size:14px}input::placeholder{color:#89979f}.zone-label{display:grid;grid-template-columns:1fr 1fr;gap:12px;align-items:center;font-size:13px}.today{font-size:13px;color:var(--muted);margin:6px 0 12px}.primary{width:100%;border:0;border-radius:9px;background:var(--green);color:#fff;min-height:50px;font-weight:700;transition:background 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8px}.result-row{display:flex;justify-content:space-between;gap:16px;text-align:start;font-size:14px;border-top:1px solid #dae3e6;padding-block:9px}.result-row span{color:var(--muted)}.result-row strong{font-weight:700;text-align:end}.result-detail{font-size:13px;color:var(--muted);margin:15px 0 0}.conversion-date{font-size:26px;font-weight:700;color:var(--green);line-height:1.6}.check-label{display:flex;align-items:center;gap:8px;font-size:14px;margin-bottom:15px}input[type=checkbox]{width:18px;height:18px;accent-color:var(--green)}.editorial{border-block:1px solid var(--line);padding-block:48px;display:grid;grid-template-columns:1fr 1.25fr;gap:70px}.editorial h2{font-size:29px;line-height:1.8;margin:0}.prose{font-size:16px;line-height:2}.prose p{margin-top:0;color:#4d606d}.text-link{font-size:14px;font-weight:700;border-bottom:1px solid #a2b7ae}.related{padding-block:44px 60px}.related>h2{font-size:23px;margin:0 0 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@media(max-width:1000px){.header-label{display:none}.hero-layout{gap:35px;grid-template-columns:.85fr 1.15fr}.tool-links{grid-template-columns:repeat(2,1fr)}.header-inner{gap:20px}.site-header nav{gap:16px}.intro h1{font-size:46px}.tool-layout{gap:30px}}
@media(max-width:700px){.wrap,.header-inner{width:calc(100% - 32px)}.header-inner{flex-wrap:wrap;justify-content:center;gap:6px;padding-block:18px 8px;min-height:auto}.brand{font-size:23px}.brand-mark{width:36px;height:36px}.site-header nav{width:100%;justify-content:space-between;gap:8px;font-size:12px;overflow:auto}.site-header nav a{white-space:nowrap;padding-block:9px}.hero-layout{grid-template-columns:1fr;padding-block:28px;gap:25px}.intro{padding-top:0}.intro h1{font-size:37px;line-height:1.5;margin-bottom:12px;letter-spacing:-.5px}.intro h1 br{display:none}.eyebrow{margin-bottom:8px;font-size:13px}.lead{font-size:16px;max-width:none;margin-bottom:0}.intro-note,.intro-links{display:none}.panel-top{padding:20px}.panel-top h2{font-size:21px}.panel-top p{font-size:12px}form{padding:20px}.date-inputs{gap:8px;grid-template-columns:.7fr 1.4fr 1fr}.date-inputs label{font-size:13px}.calendar-label{font-size:13px}.zone-label{grid-template-columns:1fr;gap:6px}.result{margin:0 12px 12px;padding:18px}.age-numbers strong{font-size:30px}.editorial{grid-template-columns:1fr;gap:20px;padding-block:30px}.editorial h2{font-size:24px}.editorial h2 br{display:none}.related{padding-block:30px}.tool-links{gap:10px}.tool-links>a{padding:15px 10px;gap:8px}.tool-links h3{font-size:14px}.tool-links p{font-size:12px}.card-icon{font-size:22px}.tool-layout{grid-template-columns:1fr;gap:20px;padding-bottom:20px}.page-head{padding-block:25px 20px}.page-head h1{font-size:27px}.page-head .lead{font-size:16px}.article{padding-top:25px}.article h1{font-size:28px}.article h2{font-size:21px}.faq{width:calc(100% - 32px)}.footer-top{grid-template-columns:1fr;gap:14px}.footer-top nav{gap:15px;padding-top:10px}.footer-bottom{gap:15px;flex-wrap:wrap}.result-row{font-size:13px;gap:8px}.conversion-date{font-size:23px}.prose{font-size:16px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
.article table{width:100%;border-collapse:collapse;margin-block:24px;font-size:15px}.article th,.article td{border:1px solid var(--line);padding:12px;text-align:start}.article th{background:var(--pale)}