:root{--ink:#171e3b;--muted:#555b70;--blue:#2c43cc;--paper:#fafaf6;--line:#d9dce4;--pale:#eaf0ff;--serif:Georgia,'Times New Roman',serif}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.65 system-ui,-apple-system,'Segoe UI',sans-serif}a{color:inherit}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}button{cursor:pointer}a{text-underline-offset:4px}img{display:block;max-width:100%}.wrap{max-width:1320px;margin:0 auto;padding:0 42px}.header{max-width:1440px;margin:auto;padding:28px 42px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:30px}.brand{display:flex;align-items:center;gap:12px;font:700 25px var(--serif);text-decoration:none;white-space:nowrap}.brand i{font-weight:400}.mark{color:white;background:var(--blue);width:42px;height:42px;display:flex;align-items:center;justify-content:center;border-radius:9px;font:700 27px var(--serif);letter-spacing:-6px;padding-right:5px}.mark span{font-size:19px;margin-top:9px}nav{display:flex;gap:28px;font-size:15px;font-weight:600}nav a{text-decoration:none}.header-cta{font-size:14px;text-decoration:none;font-weight:650;border-bottom:1px solid;padding:8px 0}.header-cta span{margin-left:14px}.home-hero{display:grid;grid-template-columns:1fr 1fr;gap:64px;padding-top:62px;padding-bottom:70px;align-items:center}.eyebrow{text-transform:uppercase;letter-spacing:.13em;font-size:12px;font-weight:750;color:var(--blue);margin:0 0 18px}h1,h2,h3{font-family:var(--serif);font-weight:400;line-height:1.1;letter-spacing:-.035em;margin:0 0 22px}h1{font-size:clamp(42px,4.5vw,66px)}h1 em{color:var(--blue);font-weight:400}h2{font-size:40px}h3{font-size:28px}.lede{font-size:19px;max-width:590px;color:var(--muted)}.button,.light-button{display:inline-flex;gap:26px;align-items:center;background:var(--blue);color:#fff;border:0;border-radius:4px;text-decoration:none;font-weight:650;font-size:15px;padding:14px 21px}.button:hover{background:#1d2f9f}.small{font-size:13px;color:var(--muted)}.hero-copy>.small{margin-top:20px}.hero-planner{background:var(--blue);border-radius:8px;color:white;padding:25px 28px 24px;transform:rotate(1deg)}.panel-label{display:flex;justify-content:space-between;font-size:11px;letter-spacing:.1em;margin-bottom:26px;gap:15px}.mini-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:5px;padding:12px;background:#18288b;transform:rotate(-2deg)}.mini-grid span{aspect-ratio:1;border:8px solid #fff5;box-shadow:inset 0 0 0 7px #ffffff1c}.mini-bottom{display:flex;justify-content:space-between;gap:16px;align-items:center;margin-top:26px}.mini-bottom strong{font:24px var(--serif)}.mini-bottom p{font-size:13px;margin:7px 0;color:#e5e9ff}.light-button{color:var(--ink);background:#fff;font-size:13px;padding:10px 14px;flex-shrink:0}.section{padding-top:48px;padding-bottom:64px;border-top:1px solid var(--line)}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}.section-heading h2{margin:0}.section-heading .eyebrow{margin-bottom:12px}.text-link{color:var(--blue);font-size:14px;font-weight:650}.tool-cards{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:5px;overflow:hidden}.tool-card{padding:28px 24px;text-decoration:none;background:white;border-right:1px solid var(--line);transition:background .2s}.tool-card:last-child{border:0}.tool-card:hover{background:var(--pale)}.tool-card .eyebrow{font-size:11px}.tool-card h3{font-size:26px;line-height:1.2}.tool-card h3 span{font:22px system-ui;display:block;margin-top:30px;color:var(--blue)}.tool-card p{font-size:15px;color:var(--muted);margin-bottom:0}.editorial-strip{display:grid;grid-template-columns:1fr 1fr;gap:60px;margin-top:18px;margin-bottom:64px;align-items:center}.image-slot{min-height:200px;background:var(--pale);border-radius:5px;overflow:hidden}.image-slot img{width:100%;height:320px;object-fit:cover}.editorial-strip p:not(.eyebrow){color:var(--muted)}.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}.guide-card{display:block;text-decoration:none;border-top:3px solid var(--ink);padding:24px 0}.guide-card:hover h3{color:var(--blue)}.guide-card p{color:var(--muted);font-size:16px}.guide-card h3{font-size:29px}.guide-card .small{color:var(--blue)}footer{background:var(--ink);color:white;padding:44px max(30px,calc((100vw - 1236px)/2))}.footer-top{display:flex;align-items:center;justify-content:space-between;gap:24px}.footer-top p{font:24px var(--serif)}.footer-links{display:flex;flex-wrap:wrap;gap:15px 28px;border-top:1px solid #ffffff30;margin-top:24px;padding-top:24px;font-size:14px}footer .small{color:#bbc1d5;margin-top:24px}.crumb{display:flex;gap:12px;font-size:13px;color:var(--muted);padding-top:28px;margin-bottom:35px}.page-head{max-width:850px;padding-bottom:24px}.page-head h1{font-size:52px}.page-head .lede{max-width:760px}.workspace{display:grid;grid-template-columns:340px minmax(0,1fr);border:1px solid var(--line);border-radius:8px;overflow:hidden;margin:20px 0 40px;background:white}.controls{padding:28px;border-right:1px solid var(--line);background:#f1f3f9}.controls h2{font:24px var(--serif)}label{font-size:14px;font-weight:650;display:block;margin:15px 0 6px}.input-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}input,select{min-width:0;width:100%;border:1px solid #b8bfd1;border-radius:4px;background:white;color:var(--ink);padding:10px 12px;font-size:16px;min-height:46px}input[type=color]{height:46px;padding:5px}input[type=checkbox]{width:20px;min-height:20px}input:focus,select:focus,button:focus-visible,a:focus-visible{outline:3px solid #718dff;outline-offset:3px}.help{font-size:13px;color:var(--muted);line-height:1.55}.controls .button{width:100%;justify-content:center;margin-top:22px}.result{padding:30px;min-width:0}.result h2{font:30px var(--serif);margin-bottom:15px}.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:22px}.stat{background:var(--pale);border-radius:5px;padding:18px}.stat strong{display:block;font:36px var(--serif);color:var(--blue);line-height:1.15}.stat span{font-size:13px}.blanket-grid{display:grid;gap:3px;background:#dfe3ed;padding:8px;max-width:650px;margin:auto}.blanket-grid span{aspect-ratio:1;box-shadow:inset 0 0 0 5px #ffffff29;border:5px solid #ffffff29}.blanket-canvas{background:#f7f8fb;padding:24px;overflow:auto}.swatch-legend{display:flex;flex-wrap:wrap;gap:16px;margin-top:14px;font-size:14px}.chip{display:inline-block;width:15px;height:15px;border-radius:50%;vertical-align:-2px;margin-right:6px;border:1px solid #0004}.result-note{font-size:14px;color:var(--muted);margin:18px 0}.error{color:#a12323;background:#fff0f0;padding:14px;border-left:3px solid #a12323}.error:empty{display:none}.article-layout{display:grid;grid-template-columns:220px minmax(0,760px);gap:60px;margin:25px auto 65px;max-width:1140px;padding:0 35px}.article-body{min-width:0}.article-body p,.article-body li{line-height:1.85}.article-body h2{font-size:32px;margin-top:40px}.article-body h3{font-size:25px;margin-top:26px}.article-body>p:first-child{font-size:20px}.article-body a{color:var(--blue)}.article-body ul,.article-body ol{padding-left:24px}.article-body li{margin-bottom:9px}.toc{align-self:start;position:sticky;top:24px;border-top:1px solid var(--ink);padding-top:18px;font-size:14px}.toc a{display:block;margin:12px 0;color:var(--muted);text-decoration:none}.toc a:hover{color:var(--blue)}.byline{font-size:13px;color:var(--muted);margin-top:20px}.prose{max-width:800px;margin:0 auto;padding:20px 32px 70px}.prose h2{font-size:30px;margin-top:35px}.callout{padding:22px 25px;background:var(--pale);border-left:3px solid var(--blue);margin:25px 0;border-radius:0 4px 4px 0}.callout p:last-child{margin-bottom:0}.formula{font:18px/1.6 ui-monospace,monospace;background:var(--ink);color:white;border-radius:4px;padding:20px;overflow-wrap:anywhere;margin:25px 0}.table-scroll{overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:15px;margin:22px 0}th,td{text-align:left;border-bottom:1px solid var(--line);padding:12px}th{background:var(--pale);font-weight:650}.related{margin-top:40px;padding-top:25px;border-top:1px solid var(--line)}.related a{display:block;margin:10px 0}.source-list{font-size:14px}.skip{position:absolute;left:12px;top:-100px;background:#fff;padding:12px;z-index:100}.skip:focus{top:8px}.converter-results{margin-top:22px;padding:25px;background:var(--pale);border-radius:5px}.converter-results strong{font:32px var(--serif);color:var(--blue)}.print-button{border:1px solid var(--line);background:white;border-radius:4px;padding:10px 15px;color:var(--ink);font-size:14px}.no-js{padding:20px;background:var(--pale)}
@media(max-width:1050px){.header{padding:22px 28px}.header-cta{display:none}.wrap{padding-left:28px;padding-right:28px}.home-hero{gap:32px}.mini-bottom{display:block}.light-button{margin-top:10px}.tool-cards{grid-template-columns:repeat(2,1fr)}.tool-card:nth-child(2){border-right:0}.tool-card:nth-child(-n+2){border-bottom:1px solid var(--line)}.article-layout{gap:35px;grid-template-columns:170px minmax(0,1fr)}}
@media(max-width:760px){.header{padding:20px;flex-wrap:wrap;gap:16px}.brand{font-size:23px}.mark{width:35px;height:35px}nav{gap:20px;font-size:14px}.wrap{padding-left:20px;padding-right:20px}.home-hero{grid-template-columns:1fr;padding-top:35px;padding-bottom:40px;gap:35px}h1{font-size:49px}.hero-copy h1 br:nth-child(2){display:none}.hero-planner{transform:none;padding:22px}.mini-bottom{display:flex}.hero-copy>.small{font-size:12px}.section{padding-top:35px;padding-bottom:35px}.section-heading{display:block}.section-heading>.text-link{display:inline-block;margin-top:16px}h2{font-size:33px}.tool-card{padding:22px 18px}.tool-card h3{font-size:24px}.tool-card p{font-size:14px}.tool-card .eyebrow{font-size:10px}.editorial-strip{grid-template-columns:1fr;gap:25px;margin-bottom:40px}.image-slot img{height:240px}.guide-grid{grid-template-columns:1fr;gap:8px}.guide-card{padding-top:20px}.footer-top{display:block}.footer-top p{font-size:22px}.workspace{grid-template-columns:1fr}.controls{border-right:0;border-bottom:1px solid var(--line);padding:22px}.result{padding:22px 16px}.stat-grid{gap:8px}.stat{padding:12px 9px}.stat strong{font-size:28px}.stat span{font-size:12px}.blanket-canvas{padding:10px}.blanket-grid{gap:2px;padding:5px}.blanket-grid span{border-width:3px}.page-head h1{font-size:42px}.article-layout{display:block;padding:0 22px}.toc{position:static;display:block;margin-bottom:32px}.toc a{display:inline-block;margin:6px 18px 6px 0}.article-body h2{font-size:29px}.page-head .lede{font-size:18px}.prose{padding-left:22px;padding-right:22px}.mini-bottom strong{font-size:22px}.light-button{font-size:12px}.panel-label{font-size:10px}}
@media print{header,footer,.skip,.toc,.print-button{display:none}.wrap,.article-layout,.prose{padding:0;max-width:none}.workspace{display:block;border:0}.controls{break-after:avoid}.result{break-inside:avoid}.blanket-grid{-webkit-print-color-adjust:exact;print-color-adjust:exact}body{background:#fff;color:#000;font-size:12pt}.page-head h1{font-size:30pt}a{color:#000!important}.article-layout{display:block}}

.toc>strong{display:block;margin-bottom:12px}