:root{--navy:#071a33;--panel:#0d2544;--cyan:#0ba6d4;--ink:#10263f;--muted:#4c6274;--line:#c5d8e4;--paper:#f5f9fc;--white:#fff}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font:18px/1.65 Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:#08668c;text-underline-offset:4px}button{font:inherit}img{max-width:100%}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #0ba6d4;outline-offset:5px}.skip{position:absolute;top:-100px;left:20px;z-index:50;padding:10px;background:#fff}.skip:focus{top:10px}.wrap{width:min(1160px,calc(100% - 48px));margin:auto}.topbar{background:var(--navy);color:#fff;border-bottom:1px solid #244767}.nav{min-height:84px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:800;font-size:1.12rem;letter-spacing:-.02em;text-decoration:none}.brand img{width:40px;height:40px;object-fit:contain;filter:hue-rotate(148deg) saturate(1.45)}.navlinks{display:flex;gap:28px;align-items:center}.navlinks a{color:#bcd0e1;text-decoration:none;font-size:.93rem;font-weight:650}.navlinks a[aria-current=page]{color:#fff;border-bottom:2px solid #34c2e8;padding-bottom:5px}.navlinks a:hover{color:#fff}.eyebrow{color:#087da7;font-weight:800;font-size:.78rem;letter-spacing:.14em;text-transform:uppercase}.hero{padding:54px 0 48px;background:linear-gradient(120deg,#0d2b4d,#071a33);color:#fff}.hero .eyebrow{color:#34c2e8}.hero h1{font-size:clamp(2.3rem,5vw,3.7rem);letter-spacing:-.045em;line-height:1.12;max-width:900px;margin:16px 0 18px}.hero p{max-width:760px;font-size:1.12rem;color:#c6daea;margin:0 0 22px}.actions{display:flex;gap:12px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;background:#fff;border:1px solid var(--line);border-radius:6px;padding:11px 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strong{font-size:1.6rem;line-height:1.1;letter-spacing:-.025em}.feature-label span{font-size:.85rem;color:#88ddf4}.feature-copy{padding:30px}.feature-copy h3{font-size:clamp(1.45rem,3vw,2rem);line-height:1.2;letter-spacing:-.03em;margin:12px 0}.feature-copy p{color:var(--muted);margin:0 0 14px}.feature-card:hover,.article-card:hover{border-color:#0a8bb6;box-shadow:0 10px 30px #071a330d}.text-link{color:#08668c;font-weight:750;font-size:.94rem}.meta{font-size:.86rem;color:var(--muted)}.tag{display:inline-block;font-size:.76rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em;color:#087da7}.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.article-card{display:block;border-top:3px solid #0ba6d4;border-radius:0 0 8px 8px;background:#fff;padding:28px;color:inherit;text-decoration:none;box-shadow:0 0 0 1px var(--line)}.article-card h3{font-size:1.4rem;line-height:1.25;letter-spacing:-.02em;margin:12px 0}.article-card p{color:var(--muted);margin:0 0 20px}.topics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.topic{padding:26px;border:1px solid var(--line);border-radius:8px;background:#fff;color:inherit;text-decoration:none}.topic h3{margin:0 0 8px;font-size:1.35rem}.topic p{color:var(--muted);margin:0 0 16px}.topic:hover{border-color:#0a8bb6}.author-grid{display:grid;grid-template-columns:1fr 1.4fr;gap:60px}.author-grid p{margin:0 0 20px}.consult{background:#0d2b4d;color:#fff;border-radius:10px;padding:32px;display:flex;align-items:center;justify-content:space-between;gap:30px}.consult h2{font-size:1.6rem;margin:0 0 10px}.consult p{color:#c6daea;margin:0;max-width:700px}.video-block{display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center}.video-placeholder{aspect-ratio:16/9;background:#0d2b4d;border:1px solid #244767;border-radius:8px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:30px;gap:14px;color:#fff}.video-placeholder p{margin:0;font-size:.9rem;color:#c6daea}.video-placeholder iframe{width:100%;height:100%;border:0}.video-placeholder.loaded{padding:0;display:block;overflow:hidden}.page-intro{padding:52px 0 36px;border-bottom:1px solid var(--line)}.page-intro h1{font-size:clamp(2.2rem,4vw,3.25rem);line-height:1.13;letter-spacing:-.04em;margin:12px 0 18px}.page-intro p{max-width:760px;color:var(--muted);margin:0}.prose{max-width:780px;padding:45px 24px 80px;margin:auto}.prose p{margin:0 0 1.25em}.prose h2{font-size:1.8rem;line-height:1.22;letter-spacing:-.025em;margin:2em 0 .6em}.prose ul,.prose ol{padding-left:24px}.prose li{margin-bottom:10px}.prose .answer{font-size:1.18rem;font-weight:600;color:#0b3754;padding-bottom:24px;border-bottom:1px solid var(--line)}.article-head{padding:48px 0 35px}.article-head .wrap{max-width:920px}.article-head h1{font-size:clamp(2.25rem,4.7vw,3.65rem);line-height:1.13;letter-spacing:-.04em;margin:16px 0 20px}.article-head .meta{line-height:1.8}.contents{background:#e7f2f8;border:1px solid var(--line);border-radius:8px;padding:18px 22px;margin:0 0 30px}.contents summary{cursor:pointer;font-weight:750}.contents ol{margin-bottom:0;columns:2;gap:32px;font-size:.94rem}.contents li{break-inside:avoid}.flow{padding:20px 24px;border-left:4px solid var(--cyan);border-radius:0 8px 8px 0;background:#e7f2f8;font-weight:750;line-height:1.9;margin:28px 0;overflow-wrap:anywhere}.bio{border-top:1px solid var(--line);padding-top:26px;margin-top:45px}.bio h2{font-size:1.35rem;margin:0 0 12px}.sources{font-size:.96rem}.sources li{overflow-wrap:anywhere}.related h3{font-size:1.2rem;line-height:1.3}.small{font-size:.87rem;color:var(--muted)}.footer{background:var(--navy);color:#a8bfd3;padding:32px 0;font-size:.9rem}.footer-top{display:flex;justify-content:space-between;gap:24px;margin-bottom:25px}.footer strong{color:#fff;font-size:1rem}.footer p{margin:8px 0 0;max-width:420px}.footer-links{display:flex;flex-wrap:wrap;gap:16px 24px;align-items:flex-start}.footer a{color:#d7e8f4;text-decoration:none}.footer a:hover{text-decoration:underline}.footer-bottom{border-top:1px solid #244767;padding-top:20px;font-size:.84rem}.draft-notice{background:#fff4da;border:1px solid #dcc080;border-radius:6px;padding:16px 20px;margin-bottom:26px;color:#5f440a;font-size:.95rem}.table-scroll{overflow:auto}table{border-collapse:collapse;width:100%;font-size:.96rem}th,td{border:1px solid var(--line);padding:14px;text-align:left;vertical-align:top}th{background:#e7f2f8}blockquote{border-left:3px solid var(--cyan);margin:25px 0;padding:8px 24px;color:#0b3754}.toc-target{scroll-margin-top:24px}
@media(max-width:780px){.nav{align-items:flex-start;flex-direction:column;padding:18px 0;gap:16px}.navlinks{gap:14px 22px;flex-wrap:wrap}.navlinks a{font-size:.91rem}.hero{padding:38px 0}.cards,.topics,.author-grid,.video-block{grid-template-columns:1fr}.author-grid,.video-block{gap:24px}.section{padding:38px 0}.section-head{align-items:flex-start;flex-direction:column;gap:14px}.consult{align-items:flex-start;flex-direction:column}.footer-top{flex-direction:column}.contents ol{columns:1}.feature-card{grid-template-columns:1fr}.feature-label{flex-direction:row;align-items:center;padding:22px}.feature-label strong{font-size:1.3rem}.feature-copy{padding:24px}}
@media(max-width:430px){.wrap{width:calc(100% - 32px)}.hero h1{font-size:2.3rem}.article-head h1{font-size:2.15rem}.prose{padding:32px 18px 60px}.actions .btn{width:100%}.feature-label{align-items:flex-start;flex-direction:column;gap:12px}.consult{padding:24px}}
.glossary-layout{padding-bottom:60px}.glossary-download{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:26px 0;border-bottom:1px solid var(--line)}.glossary-download p{margin:0;color:var(--muted)}.glossary-controls{padding:28px 0}.search-label{font-weight:750;display:block;margin-bottom:10px}.glossary-search-row{display:flex;gap:12px}.glossary-search-row input{width:100%;min-width:0;background:#fff;border:1px solid #90adbf;border-radius:6px;padding:14px 16px;font:inherit;color:var(--ink)}.glossary-search-row .btn{flex-shrink:0}.glossary-search-row input:focus-visible{outline:3px solid #0ba6d4;outline-offset:2px}.glossary-filters{border:0;padding:0;margin:24px 0}.glossary-filters legend{font-size:.9rem;font-weight:750;margin-bottom:12px}.filter-buttons{display:flex;gap:9px;flex-wrap:wrap}.filter-buttons button{border:1px solid var(--line);background:#fff;color:#25445e;padding:9px 13px;border-radius:6px;font-size:.9rem;cursor:pointer}.filter-buttons button[aria-pressed=true]{background:#0d2b4d;color:#fff;border-color:#0d2b4d}.alphabet{display:flex;gap:6px;flex-wrap:wrap;padding:16px 0;border-block:1px solid var(--line)}.alphabet a,.alphabet span{display:grid;place-items:center;width:34px;height:38px;border-radius:4px;text-decoration:none;font-weight:750;font-size:.95rem}.alphabet a{background:#e4f2f8;color:#08668c}.alphabet a:hover{background:#cbe7f3}.alphabet [aria-disabled=true]{background:transparent;color:#647687;opacity:.6}.lookup-meta{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-top:18px}.lookup-meta p{font-size:.92rem;font-weight:750;margin:0}.letter-group{scroll-margin-top:24px;margin-bottom:38px}.letter-group>h2{font-size:1.7rem;color:#087da7;margin:0 0 14px;border-bottom:2px solid #0ba6d4;padding-bottom:9px}.glossary-entry{background:#fff;border:1px solid var(--line);border-radius:7px;margin-bottom:12px;scroll-margin-top:24px}.glossary-entry summary{display:grid;grid-template-columns:1fr 30px;gap:6px 20px;cursor:pointer;list-style:none;padding:21px 24px}.glossary-entry summary::-webkit-details-marker{display:none}.entry-title{font-weight:800;font-size:1.12rem;color:#10263f;grid-column:1}.entry-definition{color:var(--muted);font-size:1rem;grid-column:1;line-height:1.6}.entry-toggle{grid-column:2;grid-row:1/3;align-self:center;justify-self:center;font-size:1.5rem;color:#08668c}.entry-toggle:before{content:'+'}.glossary-entry[open] .entry-toggle:before{content:'−'}.glossary-entry[open]{border-color:#72b5d1}.entry-content{padding:0 24px 23px;border-top:1px solid #e1eaf0;margin:0 24px;padding-inline:0}.entry-content .tag{margin-top:20px}.entry-content p{margin:13px 0 0;font-size:1rem}.related-terms{line-height:1.9}.glossary-deeper a{font-weight:750}.glossary-empty{padding:26px;background:#e7f2f8;border:1px solid var(--line);border-radius:6px}.glossary-notes{max-width:850px;font-size:.9rem;color:var(--muted);border-top:1px solid var(--line);padding-top:25px}.glossary-entry[hidden],.letter-group[hidden],.glossary-empty[hidden]{display:none}.home-glossary{display:flex;align-items:center;justify-content:space-between;gap:30px;background:#e7f2f8;border:1px solid var(--line);border-radius:9px;padding:28px}.home-glossary h2{font-size:1.8rem;margin:5px 0 10px}.home-glossary p{max-width:700px;margin:0;color:var(--muted)}
@media(max-width:780px){.glossary-download,.lookup-meta,.home-glossary{align-items:flex-start;flex-direction:column;gap:16px}.glossary-search-row{flex-wrap:wrap}.glossary-search-row input{flex-basis:100%}.glossary-entry summary{padding:18px;gap:6px 12px}.entry-content{margin:0 18px}.filter-buttons button{font-size:.88rem}.alphabet{gap:4px}.alphabet a,.alphabet span{width:33px}.home-glossary{padding:24px}.navlinks{gap:12px 20px}}

.footer-social{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:22px}
.footer-social-label{color:#d7e8f4;font-weight:700;margin-right:4px}
.footer-social .social-button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:9px 17px;border:1px solid #5c7f9c;border-radius:6px;background:transparent;color:#fff;text-decoration:none;font:inherit;font-weight:700;line-height:1.2}
.footer-social a.social-button:hover{background:#163b60;text-decoration:none}
.footer-social .social-button:disabled{color:#afc5d5;border-color:#43617c;cursor:default;opacity:.8}
.about-author{display:grid;grid-template-columns:minmax(0,240px) minmax(0,1fr);gap:32px;align-items:start;margin-bottom:42px}
.about-author img{display:block;width:100%;height:auto;aspect-ratio:2/3;object-fit:cover;border-radius:9px;border:1px solid var(--line)}
.about-author h2{margin-top:0}
@media(max-width:650px){.about-author{grid-template-columns:1fr;gap:22px}.about-author img{max-width:320px}}

.navlinks{gap:14px 20px;flex-wrap:wrap;justify-content:flex-end}.nav .brand{flex-shrink:0}.topic,.tool-card{min-width:0}.empty-state,.featured-term{padding:24px;background:#e7f2f8;border:1px solid var(--line);border-radius:8px;margin:24px 0}.featured-term h2{font-size:1.6rem;margin:8px 0}.featured-term p{margin-bottom:0}.bookmark-filter{display:block;margin-top:18px}.bookmark-filter input{width:20px;height:20px;vertical-align:middle}.tools-stack{display:grid;gap:28px;margin-top:30px}.tool-card{padding:30px;background:#fff;border:1px solid var(--line);border-radius:10px;scroll-margin-top:24px}.tool-card h2{margin-top:0}.tool-field{display:flex;flex-direction:column;gap:6px;font-size:1rem;font-weight:650;min-width:0}.tool-field input,select{font:inherit;color:var(--ink);border:1px solid #90adbf;border-radius:6px;padding:10px 12px;background:#fff;max-width:100%;min-height:44px;min-width:0}.tool-field input:focus-visible,select:focus-visible,input:focus-visible{outline:3px solid var(--cyan);outline-offset:3px}.field-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.tool-row{display:grid;grid-template-columns:minmax(120px,1fr) minmax(150px,2fr) auto;gap:14px;align-items:end;padding:16px 0;border-bottom:1px solid var(--line);margin-bottom:16px}.tool-row.custom-row{grid-template-columns:minmax(150px,2fr) minmax(100px,1fr) auto}.tool-card>.small{margin-bottom:20px}.tool-actions{margin:24px 0 16px}.tool-result{display:block;font-size:1.2rem;font-weight:750;background:#e7f2f8;border-radius:6px;padding:18px;white-space:pre-line;overflow-wrap:anywhere}.tool-result.error{background:#fff1eb;color:#842d0c}.tool-card form>.tool-field{margin-top:20px;max-width:400px}.ratings-grid{display:grid;gap:24px;margin-top:28px}.news-card h2{font-size:1.4rem}.news-card .meta{margin-bottom:10px}button{cursor:pointer;min-height:44px}.alphabet a,.alphabet span{min-height:44px;width:36px}a,button{overflow-wrap:anywhere}input[aria-invalid=true]{border-color:#a63212}.tool-row .btn{min-width:85px}#ratings-week{width:min(100%,440px)}
@media(max-width:900px){.nav{flex-direction:column;align-items:flex-start;padding:18px 0;gap:16px}.navlinks{justify-content:flex-start}}
@media(max-width:600px){.field-grid{grid-template-columns:1fr}.tool-card{padding:20px}.tool-row,.tool-row.custom-row{grid-template-columns:1fr}.tool-row .btn{justify-self:start}.tool-actions .btn{width:100%}.cards{grid-template-columns:1fr}.navlinks a{min-height:44px;display:flex;align-items:center}.news-card{padding:22px}}