:root{color-scheme:light;--paper:#fff1e5;--ink:#262a2b;--teal:#08666b;--rule:#c9bcb0}
*{box-sizing:border-box}
body{margin:0;min-height:100svh;display:flex;flex-direction:column;background:var(--paper);color:var(--ink);font-family:Georgia,'Times New Roman',serif}
.masthead{text-align:center;padding:42px 18px 32px;}
h1{margin:0;font-size:clamp(40px,12.8vw,78px);line-height:1;letter-spacing:-.055em}
a{color:inherit;text-decoration:none}a:hover{color:var(--teal)}a:focus-visible{outline:2px solid var(--teal);outline-offset:6px}
.brand span{color:var(--teal)}
main{flex:1;width:min(1240px,calc(100% - 36px));margin:0 auto;min-height:260px}
footer{margin:0 36px;padding:18px 0;font:10px Arial,sans-serif;color:#66615b}
.not-found{padding-top:55px}.not-found h2{font-size:30px;font-weight:normal}.not-found a{color:var(--teal)}
@media(max-width:650px){.masthead{padding:30px 18px 25px}footer{margin:0 18px}}

/* Posts keep the masthead simple and give the writing room to breathe. */
.brand{font-weight:bold;font-size:clamp(40px,12.8vw,78px);line-height:1;letter-spacing:-.055em}
.skip-link{position:absolute;left:12px;top:-100px;background:var(--paper);padding:10px;z-index:100}.skip-link:focus{top:12px}
.home{width:min(1030px,calc(100% - 48px));padding:52px 0 100px}
.post-preview{max-width:720px}.post-category{font:11px/1.5 Arial,sans-serif;letter-spacing:1px;text-transform:uppercase;color:var(--teal);margin:0 0 17px}
.post-preview h1{font-size:clamp(34px,5vw,48px);font-weight:normal;letter-spacing:-1px;line-height:1.1;margin-bottom:17px}
.post-excerpt{font-size:20px;line-height:1.5;color:#62594f;margin:0 0 20px;max-width:650px}
.post-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font:11px/1.6 Arial,sans-serif;color:#71665c;letter-spacing:.2px}
.read-link,.back-link{font:12px/1.5 Arial,sans-serif;color:var(--teal)}.read-link{display:inline-flex;gap:28px;margin-top:27px}.back-link{display:block;margin-bottom:36px}
.post{width:min(760px,calc(100% - 48px));padding:32px 0 75px;min-width:0}
.post-header{padding-bottom:28px;margin-bottom:32px}.post-header h1{font-size:clamp(39px,6vw,59px);font-weight:normal;line-height:1.07;letter-spacing:-1.6px;margin:0 0 23px}.post-header .post-category{font-size:10px}
.post-body{font-size:19px;line-height:1.8;overflow-wrap:break-word}.post-body>p{margin:0 0 25px}.post-body>p:first-child{font-size:22px;line-height:1.65}.post-body h2{font-size:31px;line-height:1.2;font-weight:normal;letter-spacing:-.5px;margin:51px 0 23px}.post-body h3{font-size:23px;font-weight:normal;line-height:1.3;margin:32px 0 15px}.post-body em{font-style:italic}.post-body a:not(.read-link){color:var(--teal);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}.post-body sup{line-height:0;font:10px Arial,sans-serif;vertical-align:super;margin-left:3px}
.glossary{margin:30px 0 0}.glossary>div{padding:19px 0 22px;}.glossary dt{font-size:21px;font-weight:bold;line-height:1.3;margin-bottom:10px}.glossary dd{margin:0;font-size:18px;line-height:1.75}
.post-body .article-sources{margin-top:45px;padding-top:20px;font:13px/1.8 Arial,sans-serif}.article-sources h2{font:bold 12px Arial,sans-serif;letter-spacing:.3px;margin:0 0 17px}.article-sources ol{padding-left:20px}.article-sources li{padding:4px 0}
.rate-figure{width:calc(100% + 160px);margin:33px -80px 35px;padding:27px 25px 23px;background:#f8e9dc;font:12px/1.6 Arial,sans-serif;overflow-wrap:normal}
.chart-heading{display:flex;justify-content:space-between;gap:20px;align-items:flex-start}.post-body .chart-heading h3{font:bold 18px/1.35 Arial,sans-serif;letter-spacing:-.3px;margin:0 0 5px}.chart-heading p{margin:0 0 20px;color:#6c6156;font-size:12px}.chart-heading>button{white-space:nowrap;font:11px Arial,sans-serif;background:transparent;border:1px solid var(--rule);padding:8px 10px;color:var(--teal);cursor:pointer}
.chart-controls{padding:11px 0;margin-bottom:15px;display:flex;flex-direction:column;gap:10px}.chart-legend,.chart-range{display:flex;gap:6px 18px;flex-wrap:wrap}.chart-legend button,.chart-range button{cursor:pointer;font:11px/1.5 Arial,sans-serif;display:inline-flex;align-items:center;gap:7px;background:transparent;border:0;padding:6px 0;color:var(--ink)}.chart-legend button[aria-pressed=false]{opacity:.4}.chart-legend button:disabled{cursor:default}.chart-range{gap:3px}.chart-range button{padding:5px 10px}.chart-range button[aria-pressed=true]{background:#e3d5c7;font-weight:bold}.swatch{display:inline-block;width:17px;height:3px}.fed{background:#08666b}.treasury{background:#5578a6}.mortgage{background:#b96332}button:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--teal);outline-offset:4px}
.plot{position:relative;min-width:0}.plot svg{display:block;max-width:100%;overflow:visible}.axis text{font:11px Arial,sans-serif;fill:#6c6156}.axis path,.axis line{stroke:#b9ac9e}.grid line{stroke:#decfc0}.grid path{display:none}.chart-label{font:10px Arial,sans-serif;fill:#6c6156}.hover-line{stroke:#617977;stroke-dasharray:3 4;pointer-events:none}.empty-label{font:14px Arial,sans-serif;fill:#6c6156}.chart-help{font-size:10px;color:#766b5f;margin:5px 0 14px}.rate-figure figcaption{padding-top:14px;line-height:1.7;font-size:12px;color:#5c544b}.chart-method{margin-top:17px;padding-top:14px}.chart-method summary{cursor:pointer;font-size:11px;font-weight:bold;color:#5c544b}.chart-method p{font-size:11px;line-height:1.7;color:#6c6156;margin:12px 0 0}
.chart-tooltip{position:fixed;z-index:20;pointer-events:none;background:#203b3d;color:#fff1e5;padding:12px 14px;box-shadow:0 4px 20px #0002;font:11px/1.7 Arial,sans-serif;min-width:185px;max-width:280px}.chart-tooltip strong{font-size:12px}.tip-row{display:flex;justify-content:space-between;gap:22px;margin-top:4px}.tip-row i{display:inline-block;width:7px;height:7px;border-radius:50%;margin-right:6px}.tip-row b{font-variant-numeric:tabular-nums}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:1000px){.rate-figure{width:100%;margin-left:0;margin-right:0;padding:23px 18px}}
@media(max-width:650px){.home{width:calc(100% - 36px);padding-top:35px}.post{width:calc(100% - 36px);padding-top:25px}.back-link{margin-bottom:30px}.post-header{margin-bottom:25px}.post-body{font-size:18px;line-height:1.75}.post-body>p:first-child{font-size:20px}.post-body h2{font-size:27px;margin-top:40px}.post-body h3{font-size:22px}.glossary dt{font-size:20px}.glossary dd{font-size:17px}.rate-figure{padding:20px 10px}.chart-heading{flex-wrap:wrap;gap:0}.chart-heading>button{margin-bottom:18px}.chart-legend{gap:2px 12px}.chart-legend button{font-size:10px}.chart-range button{font-size:10px;padding:5px 8px}.chart-heading p{font-size:11px}.post-meta{font-size:10px;gap:8px}.post-excerpt{font-size:18px}}
@media print{.masthead{padding:20px}.brand{font-size:40px}.post{width:100%;padding:20px}.post-body{font-size:12pt}.post-body h2{font-size:18pt}.rate-figure{width:100%;margin:20px 0;break-inside:avoid}.chart-controls,.chart-help,.back-link,#download-rates,.skip-link{display:none}body{background:white}footer{margin:0}}

.post-preview+.post-preview{margin-top:65px}.pinned-post{max-width:720px}.common-jargon{margin-top:60px}.common-jargon .glossary>div{padding:10px 0 25px}.common-jargon h2{margin-top:0}

.common-jargon{width:calc(100% + 240px);margin-left:-120px;margin-right:-120px}
.common-jargon .glossary{column-count:3;column-gap:34px;margin-top:25px}
.common-jargon .glossary>div{break-inside:avoid;padding:0 0 25px}
.common-jargon .glossary dt{font-size:16px;line-height:1.3;margin-bottom:8px}
.common-jargon .glossary dd{font-size:16px;line-height:1.65}
.rate-figure .chart-heading{justify-content:flex-end}
@media(max-width:1080px){.common-jargon{width:100%;margin-left:0;margin-right:0}}
@media(max-width:850px){.common-jargon .glossary{column-count:2;column-gap:28px}}
@media(max-width:600px){.common-jargon .glossary{column-count:1}.common-jargon .glossary dt{font-size:16px}.common-jargon .glossary dd{font-size:17px}}

.home-with-intro{width:min(760px,calc(100% - 48px))}
.home-introduction h1{font-size:clamp(35px,5vw,48px);font-weight:normal;line-height:1.15;letter-spacing:-1px;margin:0 0 30px}
.home-articles{margin-top:65px}
.home-articles>h2{font-size:28px;font-weight:normal;margin:0 0 30px}
.home-articles .post-preview h3{font-size:34px;font-weight:normal;line-height:1.15;letter-spacing:-.7px;margin:0 0 17px}
@media(max-width:650px){.home-with-intro{width:calc(100% - 36px)}.home-articles{margin-top:45px}.home-articles .post-preview h3{font-size:30px}}

.promise-highlight{margin:34px -30px 34px;padding:25px 30px;background:#e4ede7;border-left:3px solid var(--teal)}
.promise-highlight p{margin:0;font-size:25px;line-height:1.5;font-style:italic;color:#254b49}
.promise-highlight strong{font-weight:bold}
@media(max-width:650px){.promise-highlight{margin:28px 0;padding:20px}.promise-highlight p{font-size:22px}}