:root{color-scheme:light;--ink:#142b37;--muted:#536674;--line:#d8e1e6;--paper:#f5f7f8;--accent:#146a74;--soft:#e8f3f2;--warn:#704519;--warn-bg:#fff5e8}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.6 system-ui,-apple-system,Segoe UI,sans-serif}a{color:var(--accent);text-underline-offset:3px}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #eb9d2e;outline-offset:3px}.skip{position:absolute;left:12px;top:-60px;padding:10px;background:#fff;z-index:5}.skip:focus{top:12px}.wrap{width:min(1120px,calc(100% - 40px));margin:0 auto}.topbar{border-bottom:1px solid var(--line);background:#fff}.topline{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{font-size:18px;font-weight:800;letter-spacing:-.03em;color:var(--ink);text-decoration:none}.brand-mark{display:inline-block;margin-right:9px;color:var(--accent)}.language{display:flex;gap:10px;align-items:center;font-size:14px}.language [aria-current]{font-weight:800;color:var(--ink)}.hero{padding:54px 0 28px;max-width:880px}.eyebrow{font-size:12px;letter-spacing:.12em;text-transform:uppercase;font-weight:750;color:var(--accent);margin:0 0 14px}h1{font-size:clamp(2rem,4.2vw,3.5rem);line-height:1.08;letter-spacing:-.045em;margin:0 0 20px}h2{font-size:1.45rem;line-height:1.2;letter-spacing:-.025em;margin:0 0 12px}h3{font-size:1.08rem;line-height:1.35;margin:22px 0 8px}.intro{font-size:1.13rem;color:var(--muted);max-width:760px;margin:0 0 22px}.chips{display:flex;gap:8px;flex-wrap:wrap}.chip{border:1px solid var(--line);background:#fff;padding:5px 11px;border-radius:30px;font-size:12px}.event{display:flex;gap:24px;align-items:center;justify-content:space-between;margin:0 0 28px;border-left:4px solid var(--accent);padding:18px 22px;background:var(--soft);border-radius:0 10px 10px 0}.event strong{display:block;font-size:1.03rem}.event p{margin:4px 0 0;color:var(--muted);font-size:14px}.jump{font-size:1.7rem;font-weight:800;white-space:nowrap;letter-spacing:-.035em}.tools-grid{display:grid;grid-template-columns:1.06fr 1fr;gap:22px;align-items:start}.panel{border:1px solid var(--line);background:#fff;border-radius:16px;padding:26px;min-width:0}.panel .lead{font-size:14px;color:var(--muted);margin:0 0 20px}.step-label{font-size:11px;letter-spacing:.13em;font-weight:800;color:var(--accent);margin:0 0 10px}.fields{display:grid;gap:15px}.twocol{display:grid;grid-template-columns:1fr 1fr;gap:14px}.field{display:flex;flex-direction:column;gap:6px;min-width:0}.field label{font-size:13px;font-weight:700}.field small{font-size:12px;color:var(--muted)}input,select{min-height:46px;border:1px solid #b8c8d1;border-radius:8px;padding:9px 11px;background:#fff;color:var(--ink);width:100%;min-width:0}input[type=datetime-local]{font-size:14px}.repeat{background:var(--warn-bg);padding:11px;border-radius:8px}.repeat label{color:var(--warn)}[hidden]{display:none!important}button{cursor:pointer;border:0;border-radius:9px;min-height:44px;padding:11px 17px;font-weight:700}.primary{background:var(--accent);color:#fff;width:100%;margin-top:3px}.presets{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0 0}.preset{min-height:36px;background:var(--paper);color:var(--accent);border:1px solid var(--line);font-size:12px;padding:7px 11px}.status{border-radius:9px;padding:12px;margin:16px 0 0;font-size:14px}.status:empty{display:none}.status.error{background:var(--warn-bg);color:var(--warn)}.results{margin-top:20px;border-top:1px solid var(--line);padding-top:18px}.metrics{display:grid;grid-template-columns:1fr 1fr;gap:14px}.metric-label{display:block;font-size:12px;color:var(--muted)}.metric-value{display:block;font-size:1.7rem;font-weight:800;letter-spacing:-.04em;line-height:1.3}.metric-value.small{font-size:1.22rem}.result-notes{font-size:13px;line-height:1.6;color:var(--muted);margin:12px 0 0}.result-notes strong{color:var(--ink)}.callout{font-size:13px;margin:12px 0 0;padding:11px;background:var(--soft);border-radius:8px}.export{margin-top:13px;background:#fff;border:1px solid var(--line);font-size:13px;color:var(--ink)}.content{max-width:870px;margin:46px auto 0}.content section{padding:0 0 25px}.content p{color:var(--muted);margin:10px 0 14px}.content h2{font-size:1.8rem}.table-scroll{overflow:auto;margin:20px 0}table{border-collapse:collapse;width:100%;font-size:14px}th,td{text-align:left;border-bottom:1px solid var(--line);padding:12px 14px}th{background:var(--soft);font-weight:700}.method{background:#fff;border:1px solid var(--line);border-radius:12px;padding:21px;margin-bottom:28px}.method h3{margin-top:0}.source-links{font-size:13px;display:flex;flex-wrap:wrap;gap:10px 22px}.footnote{font-size:12px;color:var(--muted)}footer{margin-top:35px;padding:25px 0 38px;border-top:1px solid var(--line)}.footer-content{display:flex;gap:20px;justify-content:space-between;flex-wrap:wrap;font-size:13px}.footer-links{display:flex;gap:15px}.noscript{padding:14px;background:var(--warn-bg);border-radius:8px}.example{color:var(--muted);font-size:13px;margin:12px 0 0}@media(max-width:850px){.tools-grid{grid-template-columns:1fr}.hero{padding-top:32px}.panel{padding:22px}.content{margin-top:32px}}@media(max-width:450px){.wrap{width:calc(100% - 28px)}.panel{padding:18px}.twocol{grid-template-columns:1fr}.event{gap:12px;padding:15px}.event .jump{font-size:1.32rem}.topline{min-height:62px}.brand{font-size:16px}.language{font-size:12px}.metric-value{font-size:1.4rem}.hero .intro{font-size:1rem}}@media print{.topbar,.presets,.primary,.export,.language{display:none}.wrap{width:100%}.panel,.method{break-inside:avoid}.tools-grid{display:block}.panel{margin-bottom:20px}body{background:#fff}}