/* v188: the public blog. Self-hosted IBM Plex Sans Arabic, logical properties (RTL and LTR), no outside requests. */
@font-face{font-family:"Plex";font-style:normal;font-weight:400;font-display:swap;src:url(fonts/plex-ar-arabic-400.woff2) format("woff2");unicode-range:U+0600-06FF,U+0750-077F,U+0870-08FF,U+200C-200E,U+2010-2011,U+204F,U+2E41,U+FB50-FDFF,U+FE70-FEFC}
@font-face{font-family:"Plex";font-style:normal;font-weight:400;font-display:swap;src:url(fonts/plex-ar-latin-400.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2190-2193,U+2212,U+2215}
@font-face{font-family:"Plex";font-style:normal;font-weight:700;font-display:swap;src:url(fonts/plex-ar-arabic-700.woff2) format("woff2");unicode-range:U+0600-06FF,U+0750-077F,U+0870-08FF,U+200C-200E,U+2010-2011,U+204F,U+2E41,U+FB50-FDFF,U+FE70-FEFC}
@font-face{font-family:"Plex";font-style:normal;font-weight:700;font-display:swap;src:url(fonts/plex-ar-latin-700.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2190-2193,U+2212,U+2215}
:root{--bg:#060a13;--ink:#0f1524;--paper:#f5f8fa;--card:#fff;--muted:#56627a;--line:#e2eaef;--teal:#2ebdc1;--teal2:#0a7f86;--teal3:#076a70;--mint:#a0e8e3;--mint2:#e3f6f4;--err:#b42318;--errbg:#fdecea;--ok:#0a6b4f;--okbg:#e5f6ef;--r:16px;--sh:0 1px 2px rgba(15,21,36,.04),0 12px 32px rgba(15,21,36,.06)}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.75 "Plex",system-ui,-apple-system,"Segoe UI",Tahoma,sans-serif;text-rendering:optimizeLegibility}
img{max-width:100%;height:auto;display:block}
a{color:var(--teal3);text-underline-offset:4px}
a:hover{color:var(--teal2)}
:focus-visible{outline:3px solid var(--teal);outline-offset:3px;border-radius:6px}
h1,h2,h3,h4{line-height:1.35;margin:0 0 .5em;letter-spacing:-.005em}
p{margin:0 0 1em}
.w{width:min(1120px,100% - 32px);margin-inline:auto}
.narrow{max-width:760px}
.center{text-align:center}
.sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.trap{position:absolute!important;inset-inline-start:-9999px;width:1px;height:1px;overflow:hidden}
.skip{position:absolute;inset-inline-start:12px;top:-60px;z-index:50;background:#fff;color:var(--ink);padding:10px 14px;border-radius:10px;font-weight:700}
.skip:focus{top:12px}

/* buttons, chips */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px;padding:0 20px;border:0;border-radius:12px;font:inherit;font-weight:700;cursor:pointer;
  background:linear-gradient(135deg,var(--mint),var(--teal));color:var(--ink);text-decoration:none;transition:transform .2s,box-shadow .2s}
.btn:hover{color:var(--ink);transform:translateY(-1px);box-shadow:0 8px 20px rgba(46,189,193,.3)}
.btn:active{transform:none}
.btn.sm{min-height:38px;padding:0 14px;font-size:.9rem}
.btn[aria-busy=true]{opacity:.7;pointer-events:none}
.btn.ghost-dark{background:transparent;color:var(--teal3);box-shadow:inset 0 0 0 1.5px var(--teal2)}
.chip{display:inline-flex;align-items:center;gap:6px;padding:3px 12px;border-radius:999px;font-size:.82rem;font-weight:700;background:var(--mint2);color:var(--teal3);text-decoration:none}
.chip:hover{background:#cdeeea;color:var(--teal3)}
.chip.lt{background:#fff;color:var(--ink);box-shadow:inset 0 0 0 1px var(--line);padding:6px 14px;font-size:.88rem}
.chip.lt:hover{box-shadow:inset 0 0 0 1px var(--teal)}
.chip.lt[aria-current]{background:var(--ink);color:#fff;box-shadow:none}
.chip small{opacity:.6;font-weight:400}
.chips{display:flex;flex-wrap:wrap;gap:8px}

/* header */
.top{position:sticky;top:0;z-index:30;background:rgba(6,10,19,.94);backdrop-filter:saturate(1.4) blur(8px);color:#fff}
.top>.w{display:flex;align-items:center;gap:18px;height:64px}
.brand{display:inline-flex;align-items:center;gap:9px;color:inherit;text-decoration:none;font-weight:700;font-size:1.05rem;white-space:nowrap}
.brand:hover{color:inherit}
.brand img{width:30px;height:auto}
.main-nav{display:flex;gap:4px;margin-inline-start:8px}
.main-nav a,.drawer a{color:#c8d4e0;text-decoration:none;padding:8px 12px;border-radius:10px;font-weight:600;font-size:.94rem}
.main-nav a:hover{color:#fff;background:rgba(160,232,227,.08)}
.main-nav a[aria-current]{color:#fff;background:rgba(160,232,227,.14);box-shadow:inset 0 -2px 0 var(--teal)}
.tools{display:flex;align-items:center;gap:8px;margin-inline-start:auto}
.ico{display:inline-grid;place-items:center;width:40px;height:40px;border-radius:10px;color:#dce6ee}
.ico:hover,.ico[aria-current]{background:rgba(160,232,227,.12);color:#fff}
.ghost{display:inline-flex;align-items:center;height:38px;padding:0 12px;border-radius:10px;color:#dce6ee;text-decoration:none;font-weight:700;font-size:.88rem;box-shadow:inset 0 0 0 1px rgba(255,255,255,.14)}
.ghost:hover{color:#fff;background:rgba(160,232,227,.1)}
.burger{display:none;position:relative}
.burger summary{list-style:none;width:42px;height:40px;border-radius:10px;display:grid;place-content:center;gap:5px;cursor:pointer;box-shadow:inset 0 0 0 1px rgba(255,255,255,.14)}
.burger summary::-webkit-details-marker{display:none}
.burger summary span{display:block;width:18px;height:2px;background:#fff;border-radius:2px}
.drawer{position:absolute;inset-inline-end:0;top:48px;min-width:230px;background:#0c1322;border-radius:14px;padding:8px;display:flex;flex-direction:column;box-shadow:0 20px 50px rgba(0,0,0,.4)}
.drawer a.sub{font-weight:400;font-size:.88rem;padding-inline-start:22px;color:#9fb0c2}
.drawer a[aria-current]{color:#fff;background:rgba(160,232,227,.14)}
.searchbar{background:#0c1322;padding:12px 0;border-top:1px solid rgba(255,255,255,.06)}
.searchbar .w{display:flex;gap:8px}
.searchbar input{flex:1;min-height:42px;border-radius:10px;border:1px solid rgba(255,255,255,.18);background:#060a13;color:#fff;padding:0 14px;font:inherit}
.progress{position:fixed;top:0;inset-inline:0;height:3px;z-index:40;pointer-events:none}
.progress span{display:block;height:100%;width:100%;background:var(--teal);transform-origin:right;transform:scaleX(0)}
[dir=ltr] .progress span{transform-origin:left}

/* sections */
main{display:block;min-height:60vh}
section{margin-block:44px}
.sec{font-size:1.35rem}
.sec-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px}
.sec-head .more{font-weight:700;text-decoration:none}
.kicker{margin:0 0 6px;font-weight:700;color:var(--teal);font-size:.92rem}
.lead{font-size:1.12rem;color:var(--muted)}
.hero{margin:0;background:radial-gradient(70% 90% at 50% 0%,rgba(46,189,193,.22),transparent 70%),var(--bg);color:#fff;padding:56px 0 50px}
.hero .w{display:flex;flex-direction:column;align-items:center;text-align:center;gap:6px}
.hero h1{font-size:clamp(1.65rem,3.6vw,2.5rem);max-width:820px}
.hero .lead{color:#b9c7d6;max-width:640px}
.hero .chips{justify-content:center;margin-top:10px}
.hero .chip.lt{background:rgba(255,255,255,.06);color:#dce6ee;box-shadow:inset 0 0 0 1px rgba(255,255,255,.14)}
.hero .chip.lt:hover{box-shadow:inset 0 0 0 1px var(--mint);color:#fff}
.bigsearch{display:flex;gap:8px;width:min(560px,100%);margin:14px auto 0}
.bigsearch input{flex:1;min-width:0;min-height:48px;border-radius:12px;border:1px solid var(--line);padding:0 16px;font:inherit;background:#fff;color:var(--ink)}
.bigsearch input:focus{border-color:var(--teal);outline:none;box-shadow:0 0 0 3px rgba(46,189,193,.25)}
.hero .bigsearch input{border-color:transparent}

/* cards */
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.card{background:var(--card);border-radius:var(--r);overflow:hidden;box-shadow:var(--sh);display:flex;flex-direction:column;transition:transform .25s,box-shadow .25s}
.card:hover{transform:translateY(-3px);box-shadow:0 2px 4px rgba(15,21,36,.05),0 20px 40px rgba(15,21,36,.1)}
.cimg{display:block;aspect-ratio:16/9;background:#0c1322;overflow:hidden}
.cimg img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.card:hover .cimg img{transform:scale(1.03)}
.cimg .ph{display:block;width:100%;height:100%;background:linear-gradient(135deg,#0c1322,#0a4f55)}
.cbody{padding:16px 18px 18px;display:flex;flex-direction:column;gap:6px;flex:1}
.cbody .chip{align-self:flex-start}
.card h3{font-size:1.1rem;margin:2px 0 0}
.card h3 a{color:var(--ink);text-decoration:none}
.card h3 a:hover{color:var(--teal3)}
.card h3 a::after{content:"";position:absolute;inset:0}
.card{position:relative}
.card .chip{position:relative;z-index:1}
.cbody p{margin:0;color:var(--muted);font-size:.95rem;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.cbody .meta{margin-top:auto;padding-top:8px;font-size:.82rem;color:#5e6a7e}
.feat-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:22px}
.card.lead h3{font-size:1.5rem}
.card.lead .cbody{padding:20px 22px 22px}
.feat-side{display:flex;flex-direction:column;gap:22px}
.card.row{flex-direction:row;flex:1}
.card.row .cimg{flex:0 0 42%;aspect-ratio:auto}
.card.row .cbody p{-webkit-line-clamp:2}
.cats{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px}
.cat{display:flex;flex-direction:column;gap:4px;padding:18px;border-radius:var(--r);background:#fff;box-shadow:var(--sh);text-decoration:none;color:var(--ink);transition:box-shadow .2s,transform .2s}
.cat:hover{color:var(--ink);transform:translateY(-2px);box-shadow:inset 0 0 0 1.5px var(--teal),var(--sh)}
.cat span{color:var(--muted);font-size:.9rem}
.cat em{font-style:normal;font-size:.8rem;color:var(--teal3);font-weight:700;margin-top:auto}
.split{display:grid;grid-template-columns:1.2fr 1fr;gap:28px;align-items:start}
.popular{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.popular li{display:flex;gap:14px;align-items:flex-start;background:#fff;border-radius:14px;padding:14px 16px;box-shadow:var(--sh)}
.popular .n{flex:0 0 34px;height:34px;border-radius:10px;display:grid;place-items:center;background:var(--mint2);color:var(--teal3);font-weight:700}
.popular a{color:var(--ink);font-weight:700;text-decoration:none}
.popular a:hover{color:var(--teal3)}
.popular small{display:block;color:#5e6a7e}
.empty{padding:30px;text-align:center;color:var(--muted)}

/* lists */
.listhead{margin-bottom:18px}
.listhead h1{font-size:clamp(1.6rem,3vw,2.2rem)}
.count{color:var(--muted);font-size:.92rem}
.filters{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;margin-top:10px}
.sort{display:flex;gap:4px;align-items:center;font-size:.9rem}
.sort span{color:var(--muted);margin-inline-end:4px}
.sort a{padding:5px 10px;border-radius:8px;text-decoration:none;color:var(--ink)}
.sort a:hover{background:#fff}
.sort a[aria-current]{background:#fff;font-weight:700;box-shadow:inset 0 0 0 1px var(--line)}
.pager{display:flex;flex-wrap:wrap;justify-content:center;gap:6px;margin-top:30px}
.pager a,.pager span{min-width:42px;min-height:42px;display:inline-grid;place-items:center;padding:0 12px;border-radius:10px;background:#fff;text-decoration:none;color:var(--ink);box-shadow:inset 0 0 0 1px var(--line)}
.pager a:hover{box-shadow:inset 0 0 0 1.5px var(--teal)}
.pager [aria-current]{background:var(--ink);color:#fff;box-shadow:none;font-weight:700}
.pager .off{opacity:.4}
.pager .gap{background:none;box-shadow:none}
.crumbs ol{list-style:none;margin:0 0 12px;padding:0;display:flex;flex-wrap:wrap;gap:4px;font-size:.86rem;color:#5e6a7e}
.crumbs li+li::before{content:"‹";margin-inline-end:4px;color:#6a7689}
[dir=ltr] .crumbs li+li::before{content:"›"}
.crumbs a{color:#5d687a;text-decoration:none}
.crumbs a:hover{color:var(--teal3);text-decoration:underline}
.crumbs [aria-current]{color:var(--ink)}

/* post */
.post{margin-top:34px}
.phead h1{font-size:clamp(1.7rem,3.8vw,2.6rem);margin-top:10px}
.phead .meta{display:flex;flex-wrap:wrap;align-items:center;gap:6px;color:#566275;font-size:.9rem}
.phead .meta a{color:var(--ink);font-weight:700;text-decoration:none}
.av{width:36px;height:36px;border-radius:50%;object-fit:cover}
.av.ph{display:inline-grid;place-items:center;background:var(--mint2);color:var(--teal3);font-weight:700}
.av.lg{width:64px;height:64px;flex:0 0 64px;font-size:1.4rem}
.cover{margin:26px auto}
.cover img{border-radius:20px;width:100%;aspect-ratio:16/9;object-fit:cover;background:#0c1322}
figcaption{font-size:.85rem;color:#5e6a7e;text-align:center;margin-top:8px}
.pbody{display:grid;grid-template-columns:minmax(0,760px);justify-content:center;gap:40px}
.pbody.has-toc{grid-template-columns:minmax(0,1fr) 250px;max-width:1060px}
.pbody.has-toc .prose{grid-row:1}
.toc{position:sticky;top:84px;align-self:start;font-size:.9rem}
.toc details{background:#fff;border-radius:14px;padding:14px 16px;box-shadow:var(--sh)}
.toc summary{font-weight:700;cursor:pointer;margin-bottom:6px}
.toc ol{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.toc a{display:block;padding:4px 8px;border-radius:8px;color:#4a5568;text-decoration:none;border-inline-start:2px solid transparent}
.toc a:hover{background:var(--paper);color:var(--teal3)}
.toc a.on{color:var(--teal3);border-inline-start-color:var(--teal);font-weight:700}
.toc .l3 a{padding-inline-start:20px;font-size:.85rem}
.prose{font-size:1.06rem;line-height:1.95;min-width:0}
.prose h2{font-size:1.5rem;margin:1.8em 0 .6em;scroll-margin-top:84px}
.prose h3{font-size:1.2rem;margin:1.5em 0 .5em;scroll-margin-top:84px}
.prose h4{font-size:1.05rem;margin:1.3em 0 .4em}
.prose ul,.prose ol{padding-inline-start:1.4em;margin:0 0 1.2em}
.prose li{margin-bottom:.4em}
.prose li::marker{color:var(--teal2)}
.prose blockquote{margin:1.6em 0;padding:14px 20px;border-inline-start:4px solid var(--teal);background:#fff;border-radius:12px;color:#2c3648;font-size:1.04rem}
.prose blockquote p:last-child{margin:0}
.prose code{background:#e9eef2;padding:1px 6px;border-radius:6px;font-size:.9em;direction:ltr;unicode-bidi:isolate}
.prose pre{background:#0c1322;color:#e6edf3;padding:16px;border-radius:12px;overflow:auto;direction:ltr;text-align:left}
.prose pre code{background:none;padding:0;color:inherit}
.prose hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.prose figure{margin:1.8em 0}
.prose figure img{border-radius:14px;margin-inline:auto}
.prose a{font-weight:600}
.tbl{overflow-x:auto;margin:1.4em 0;border-radius:12px;box-shadow:inset 0 0 0 1px var(--line);background:#fff}
.prose table{border-collapse:collapse;width:100%;font-size:.95rem;min-width:480px}
.prose th,.prose td{padding:10px 14px;text-align:start;border-bottom:1px solid var(--line);vertical-align:top}
.prose th{background:#f0f5f7;font-weight:700}
.prose tr:last-child td{border-bottom:0}
.pfoot{margin-top:28px;display:flex;flex-direction:column;gap:20px}
.tags{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:0}
.tags span{color:var(--muted)}
.tags a{padding:4px 10px;border-radius:8px;background:#fff;box-shadow:inset 0 0 0 1px var(--line);text-decoration:none;font-size:.88rem;color:var(--ink)}
.tags a:hover{box-shadow:inset 0 0 0 1px var(--teal)}
.share{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.share span{color:var(--muted);font-size:.92rem}
.share a,.share button{font:inherit;font-size:.88rem;font-weight:600;padding:6px 12px;border-radius:9px;border:0;background:#fff;color:var(--ink);box-shadow:inset 0 0 0 1px var(--line);text-decoration:none;cursor:pointer}
.share a:hover,.share button:hover{box-shadow:inset 0 0 0 1.5px var(--teal);color:var(--teal3)}
.authorbox{display:flex;gap:16px;align-items:flex-start;background:#fff;padding:18px;border-radius:var(--r);box-shadow:var(--sh);margin:0}
.authorbox b a{color:var(--ink);text-decoration:none}
.authorbox small{display:block;color:#5e6a7e}
.authorbox p{margin:6px 0 0;color:var(--muted);font-size:.95rem}
.ctabox{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;padding:22px 24px;border-radius:18px;color:#fff;
  background:radial-gradient(80% 140% at 100% 0%,rgba(46,189,193,.35),transparent 60%),var(--bg);margin:1.8em 0}
.ctabox b{font-size:1.2rem}
.ctabox p{margin:4px 0 0;color:#b9c7d6;max-width:520px;font-size:.98rem;line-height:1.7}
.ctabox .acts{display:flex;flex-direction:column;align-items:center;gap:6px}
.ctabox .lnk{color:var(--mint);font-size:.88rem;font-weight:600}
.prevnext{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.prevnext a{display:flex;flex-direction:column;gap:4px;padding:16px;border-radius:14px;background:#fff;box-shadow:var(--sh);color:var(--ink);text-decoration:none;font-weight:700}
.prevnext a:hover{box-shadow:inset 0 0 0 1.5px var(--teal),var(--sh)}
.prevnext small{color:#5e6a7e;font-weight:400}
.prevnext .nx{text-align:end}
.backto{margin:0}
.backto a{font-weight:700;text-decoration:none}
.related{margin-top:56px}
.previewbar{position:sticky;top:64px;z-index:20;margin:0;background:#fff4d6;color:#5c4400;padding:10px 16px;text-align:center;font-weight:600}

/* forms */
.form{display:flex;flex-direction:column;gap:12px;background:#fff;padding:22px;border-radius:var(--r);box-shadow:var(--sh)}
.form h2,.form h3{margin:0}
.f{display:flex;flex-direction:column;gap:6px}
.f label{font-weight:700;font-size:.92rem}
.f label i{color:var(--err);font-style:normal}
.f input,.f textarea,.subscribe input[type=email]{font:inherit;min-height:46px;padding:10px 14px;border-radius:11px;border:1.5px solid #d3dde4;background:#fff;color:var(--ink);width:100%}
.f textarea{resize:vertical;min-height:120px}
.f input:hover,.f textarea:hover{border-color:#b6c4cf}
.f input:focus,.f textarea:focus,.subscribe input:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(46,189,193,.25)}
[aria-invalid=true]{border-color:var(--err)!important;background:#fffafa!important}
.ferr{color:var(--err);font-size:.85rem;font-weight:600}
.ferr::before{content:"⚠ "}
.two{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.hint{color:#566275;font-size:.88rem;margin:0}
.note{display:flex;gap:8px;align-items:flex-start;padding:10px 14px;border-radius:11px;margin:0;font-weight:600;font-size:.94rem}
.note span{flex:0 0 22px;height:22px;border-radius:50%;display:grid;place-items:center;font-size:.8rem;color:#fff}
.note.ok{background:var(--okbg);color:var(--ok)}
.note.ok span{background:var(--ok)}
.note.err{background:var(--errbg);color:var(--err)}
.note.err span{background:var(--err)}
.subscribe{margin-block:44px;border-radius:20px;background:#fff;box-shadow:var(--sh);padding:24px}
.subscribe.big{background:linear-gradient(135deg,#e6f7f5,#f6fbfc);box-shadow:inset 0 0 0 1px #cfeeea}
.sub-in{display:grid;grid-template-columns:1fr 1.2fr;gap:24px;align-items:center}
.subscribe h2{font-size:1.3rem;margin-bottom:4px}
.subscribe p{margin:0;color:var(--muted)}
.subscribe form{display:flex;flex-direction:column;gap:10px}
.subscribe .row{display:flex;gap:8px}
.subscribe .row input{flex:1;min-width:0}
.check{display:flex;gap:10px;align-items:flex-start;font-size:.9rem;color:#3c475a;cursor:pointer}
.check input{width:20px;height:20px;margin-top:4px;accent-color:var(--teal2);flex:0 0 20px}
.contact-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:22px;margin-top:20px}
.ways{background:#fff;border-radius:var(--r);padding:22px;box-shadow:var(--sh)}
.ways h2{font-size:1.15rem}
.ways ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px}
.ways b{display:block;font-size:.85rem;color:#5e6a7e}
.comments h2 small{color:#5e6a7e;font-weight:400}
.comment{background:#fff;border-radius:14px;padding:14px 18px;box-shadow:var(--sh);margin-bottom:12px}
.comment .who{margin:0 0 4px;font-size:.9rem;color:#5e6a7e}
.comment .who b{color:var(--ink)}
.comment p:last-child{margin:0}
.comments .form{margin-top:18px}
.page h1{font-size:clamp(1.6rem,3vw,2.2rem)}
.updated{color:#5e6a7e;font-size:.88rem;margin-top:24px}
.msgpage{padding:40px 0}
.err404 .big{font-size:5rem;font-weight:700;line-height:1;color:var(--teal);margin:0}
.noresult{margin:10px auto 30px;text-align:center}
.noresult .chips{justify-content:center}

/* footer */
.foot{background:var(--bg);color:#a9b8c9;padding:44px 0 22px;margin-top:64px;font-size:.92rem;position:relative}
.foot .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}
.foot a{color:#c8d4e0;text-decoration:none}
.foot a:hover{color:#fff;text-decoration:underline}
.foot .cols>div{display:flex;flex-direction:column;gap:8px}
.foot .about p{margin:0;line-height:1.7}
.foot .brand{color:#fff;margin-bottom:6px}
.fh{color:#fff;font-weight:700;margin:0 0 4px}
.legal{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;border-top:1px solid rgba(255,255,255,.08);margin-top:30px;padding-top:16px;font-size:.84rem}
.totop{position:fixed;inset-inline-end:18px;bottom:18px;width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:var(--ink);color:#fff!important;text-decoration:none!important;
  box-shadow:0 10px 24px rgba(0,0,0,.25);opacity:0;pointer-events:none;transition:opacity .25s;font-size:1.2rem;z-index:20}
.totop.on{opacity:1;pointer-events:auto}

/* responsive */
@media (max-width:1000px){
  .grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .feat-grid,.split{grid-template-columns:1fr}
  .pbody.has-toc{grid-template-columns:minmax(0,760px)}
  .toc{position:static;grid-row:1}
  .pbody.has-toc .prose{grid-row:2}
  .toc details:not([open]){padding-bottom:8px}
  .foot .cols{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){.main-nav{display:none}.burger{display:block}}
@media (max-width:640px){
  body{font-size:15.5px}
  section{margin-block:32px}
  .grid{grid-template-columns:1fr}
  .card.row{flex-direction:column}
  .card.row .cimg{aspect-ratio:16/9}
  .sub-in,.contact-grid,.two,.prevnext{grid-template-columns:1fr}
  .subscribe .row{flex-direction:column}
  .tools .btn.sm{display:none}
  .brand span{font-size:.98rem}
  .prose{font-size:1.02rem;line-height:1.9}
  .ctabox{flex-direction:column;align-items:stretch;text-align:center}
  .foot .cols{grid-template-columns:1fr}
  .hero{padding:40px 0 36px}
  .bigsearch{flex-direction:column}
  .prevnext .nx{text-align:start}
}
@media print{.top,.foot,.share,.subscribe,.ctabox,.comments,.related,.toc,.progress,.totop{display:none!important}body{background:#fff}}

/* v359: the related tool / opportunities box inside an article */
.topicbox{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 18px;margin:28px 0;padding:16px 20px;border-radius:16px;background:#e6f3f3;border:1px solid #c9e4e4}
.topicbox b{font-size:1.05rem}.topicbox p{margin:2px 0 0;font-size:.95rem;color:#475569}
.topicbox a{font-weight:700;color:#0a7f86;text-decoration:none;white-space:nowrap}