:root{--navy:#050748;--blue:#1264d8;--gold:#a8784b;--ink:#111217;--muted:#71717e;--line:#e8e9ee;--soft:#fafbfe}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;padding-top:100px;color:var(--ink);background:#fff;font:16px/1.6 'Open Sans',sans-serif}a{color:inherit;text-decoration:none}.wrap{width:min(1160px,calc(100% - 40px));margin:auto}
#mainHeader{height:100px;background:#fff;box-shadow:0 1px 10px rgba(0,0,0,.07)}#mainHeader .mega-white-logo{display:none}#mainHeader .mega-darks-logo{display:block}#mainHeader .custom-nav .nav-list li a.menu-links{color:var(--navy)}#mainHeader .custom-nav .nav-list li a.active,#mainHeader .custom-nav .nav-list li a.menu-links:hover{color:var(--gold)}#coi-mobile-nav{display:none}.coi-mobile-toggle{width:42px;height:42px;padding:8px;border:0;background:transparent}.coi-mobile-toggle span,.coi-mobile-toggle span:before,.coi-mobile-toggle span:after{content:"";display:block;position:relative;height:2px;background:var(--navy)}.coi-mobile-toggle span:before{position:absolute;top:-8px;right:0;left:0}.coi-mobile-toggle span:after{position:absolute;top:8px;right:0;left:0}.coi-mobile-toggle.open span{background:transparent}.coi-mobile-toggle.open span:before{top:0;transform:rotate(45deg)}.coi-mobile-toggle.open span:after{top:0;transform:rotate(-45deg)}
.blog-title{padding-top:28px}.blog-title h1{margin:0;color:var(--ink);font:700 30px/1.25 Poppins,sans-serif}.blog-title h1 span,.discover-head span,.resources h2 span,.programs h2 span{color:var(--blue)}.featured-carousel{padding:60px 0 26px}.lead-card{display:grid;grid-template-columns:1fr 1fr;gap:38px;align-items:center}.lead-image{display:block;overflow:hidden;border-radius:20px;background:#eef1f7;aspect-ratio:2.35/1}.lead-image img{width:100%;height:100%;object-fit:cover}.lead-content{padding-right:10px}.lead-meta{display:flex;align-items:center;gap:10px;color:#70717c;font-size:12px;font-weight:600;letter-spacing:.5px;text-transform:uppercase}.lead-meta a{padding:4px 12px;border-radius:20px;background:#edf4ff;color:var(--blue);font-weight:800}.lead-content h3{margin:18px 0 20px;color:var(--ink);font:700 26px/1.35 Poppins,sans-serif}.lead-content>p{margin:0 0 22px;color:#63636f;font-size:16px;line-height:1.8}.lead-bottom{display:flex;align-items:center;justify-content:space-between;padding-top:20px;border-top:1px solid var(--line)}.verified-author{display:flex;align-items:center;gap:12px}.verified-author img{width:49px;height:49px;border-radius:50%;object-fit:cover}.verified-author b,.verified-author small{display:block}.verified-author b{font:600 14px Poppins,sans-serif}.verified-author small{color:#999;font-size:11px}.verified-author small i{color:var(--blue)}.read-article{font-size:13px;font-weight:800}.slider-dots{display:flex;justify-content:center;gap:10px;margin-top:48px}.slider-dots button{width:8px;height:8px;padding:0;border:0;border-radius:20px;background:#e1e2e6;cursor:pointer}.slider-dots button.active{width:28px;background:var(--blue)}.skeleton-card{min-height:260px;border-radius:20px;background:linear-gradient(90deg,#f2f4f8,#e8ebf2,#f2f4f8);background-size:200%;animation:load 1.2s infinite}@keyframes load{to{background-position:-200%}}
.discover-section{padding:48px 0 60px;background:#fbfcff}.discover-head h2,.resources h2,.programs h2{margin:0 0 36px;font:700 30px/1.3 Poppins,sans-serif}.category-layout{display:grid;grid-template-columns:290px minmax(0,1fr);gap:28px}.category-row{display:flex;flex-direction:column;gap:11px}.category-btn{display:flex;align-items:center;justify-content:space-between;width:100%;padding:18px 20px;border:1px solid #eceef3;border-radius:13px;background:#fff;color:#6a6c78;text-align:left;font-size:13px;font-weight:700;cursor:pointer}.category-btn:after{content:'›';font-size:22px;font-weight:400}.category-btn i{display:none}.category-btn.active{border-color:#d7e4fb;border-left:4px solid var(--blue);background:#eaf2ff;color:var(--blue)}.article-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.article-card{overflow:hidden;border:1px solid #eceef3;border-radius:13px;background:#fff}.article-image{display:block;position:relative;aspect-ratio:1.65/1;overflow:hidden;background:#eef0f5}.article-image img{width:100%;height:100%;object-fit:cover;transition:.3s}.article-card:hover .article-image img{transform:scale(1.03)}.category-pill{display:none}.article-body{padding:17px}.article-meta{display:flex;justify-content:space-between;gap:7px;color:#777b88;font-size:9px;text-transform:uppercase}.article-meta i{color:var(--blue)}.article-body h3{display:-webkit-box;overflow:hidden;margin:10px 0 12px;color:var(--ink);font:600 15px/1.45 Poppins,sans-serif;-webkit-line-clamp:2;-webkit-box-orient:vertical}.article-body>p{display:none}.article-footer{display:flex;align-items:center;justify-content:space-between;padding-top:11px;border-top:1px solid var(--line)}.author-mini{display:flex;align-items:center;gap:6px;color:#777;font-size:9px}.author-mini img{width:26px;height:26px;border-radius:50%;object-fit:cover}.read-link{color:var(--blue);font-size:10px;font-weight:800}.load-more{display:table;margin:28px auto 0;padding:11px 24px;border:1px solid var(--blue);border-radius:7px;background:#fff;color:var(--blue);font-weight:800;cursor:pointer}.load-more:hover{background:var(--blue);color:#fff}.empty-state{text-align:center;padding:50px 20px;color:#777}.empty-state i{font-size:42px;color:#a7b4ca}.empty-state h3{margin:6px 0;font-family:Poppins}.empty-state p{margin:0}
.resources{padding:58px 0}.resource-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.resource-grid>a{display:grid;grid-template-columns:48px 1fr 20px;align-items:center;gap:14px;padding:20px;border:1px solid var(--line);border-radius:13px;background:#fff;box-shadow:0 8px 25px rgba(8,20,65,.05)}.resource-grid>a>i:first-child{display:grid;place-items:center;width:48px;height:48px;border-radius:50%;background:#edf4ff;color:var(--blue);font-size:22px}.resource-grid h3{margin:0 0 3px;font:600 14px Poppins,sans-serif}.resource-grid p{margin:0;color:#7a7b86;font-size:11px}.programs{padding:58px 0 70px;background:#f7f9fd}.program-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.program-grid>a{position:relative;overflow:hidden;padding:26px 22px;border:1px solid #e1e7f1;border-radius:14px;background:#fff;box-shadow:0 7px 22px rgba(10,25,73,.05)}.program-grid>a:before{content:"";position:absolute;top:0;right:0;left:0;height:4px;background:var(--blue)}.program-grid small{color:var(--blue);font-size:10px;font-weight:800}.program-grid h3{min-height:54px;margin:12px 0 8px;color:var(--navy);font:600 18px/1.45 Poppins,sans-serif}.program-grid p{margin:0 0 24px;color:#747682;font-size:12px}.program-grid b{color:var(--blue);font-size:12px}
footer{padding-top:0;background:transparent;color:var(--navy)}footer .footer-row2,footer .footer-row3{padding:0;background:#fff}footer .ftr-brand-pp img{width:auto;max-width:210px;filter:none}footer .copyright{margin-top:0;padding:0;border:0;color:inherit}footer .footer-row3 .copyright{padding:20px 0;border-top:1px solid #e8e8e8;text-align:center}footer .footer-row3 .copyright p{margin:8px 0;color:#6a6a8e}footer .footer-row3 .copyright a{color:var(--gold)}footer .footer-social-media-icons a{display:inline-block;margin:0 7px;color:var(--navy);font-size:22px}footer .footer-address-list{padding-left:0}footer .footer-address-list li{list-style:none}
@media(max-width:991px){body{padding-top:80px}#mainHeader{height:80px}.custom-nav>.nav-list:first-child{display:none}.custom-nav{margin-left:auto}.coi-mobile-toggle{display:block}#coi-mobile-nav.open{display:flex;position:absolute;top:80px;right:0;left:0;flex-direction:column;padding:12px 20px;background:#fff;box-shadow:0 14px 25px rgba(0,0,0,.12)}#coi-mobile-nav a{padding:11px 5px;border-bottom:1px solid #eee;color:var(--navy);font-weight:600}.lead-card{gap:25px}.lead-content h3{font-size:21px}.lead-content>p{font-size:13px}.category-layout{grid-template-columns:220px 1fr}.article-grid{grid-template-columns:repeat(2,1fr)}.resource-grid{grid-template-columns:1fr 1fr}.program-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:680px){.wrap{width:min(100% - 28px,1160px)}.blog-title{padding-top:24px}.blog-title h1{font-size:25px}.featured-carousel{padding:28px 0 22px}.lead-card{display:block}.lead-image{border-radius:12px;aspect-ratio:16/9}.lead-content{padding:18px 2px 0}.lead-meta{gap:7px;font-size:9px}.lead-meta a{padding:3px 8px}.lead-content h3{margin:12px 0 9px;font-size:19px}.lead-content>p{display:-webkit-box;overflow:hidden;margin-bottom:13px;font-size:12px;line-height:1.6;-webkit-line-clamp:2;-webkit-box-orient:vertical}.lead-bottom{padding-top:13px}.verified-author img{width:38px;height:38px}.verified-author b{font-size:11px}.verified-author small{font-size:9px}.read-article{font-size:10px}.slider-dots{margin-top:23px}.discover-section{padding:36px 0 44px}.discover-head h2,.resources h2,.programs h2{margin-bottom:23px;font-size:24px}.category-layout{display:block}.category-row{flex-direction:row;margin-bottom:20px;overflow:auto;padding-bottom:6px;scrollbar-width:none}.category-row::-webkit-scrollbar{display:none}.category-btn{flex:0 0 auto;width:auto;padding:10px 14px;border-radius:8px;font-size:11px}.category-btn:after{display:none}.category-btn.active{border-left:1px solid var(--blue);background:var(--blue);color:#fff}.article-grid{display:flex;gap:14px;overflow:auto;padding-bottom:9px;scroll-snap-type:x mandatory}.article-card{flex:0 0 78%;scroll-snap-align:start}.load-more{margin-top:20px}.resources{padding:40px 0}.resource-grid{grid-template-columns:1fr}.programs{padding:40px 0 50px}.program-grid{display:flex;overflow:auto;gap:14px;padding-bottom:8px;scroll-snap-type:x mandatory}.program-grid>a{flex:0 0 82%;scroll-snap-align:start}.program-grid h3{min-height:auto}.article-body h3{font-size:14px}}

/* Search, answer-engine and mobile usability refinements */
.skip-link{position:fixed;top:-60px;left:16px;z-index:99999;padding:10px 16px;border-radius:0 0 8px 8px;background:var(--navy);color:#fff;font-weight:700}.skip-link:focus{top:0;color:#fff}.breadcrumbs{display:flex;align-items:center;gap:8px;margin-bottom:10px;color:#686b78;font-size:13px}.breadcrumbs a{color:var(--blue);font-weight:700}.blog-intro{max-width:820px;margin:12px 0 0;color:#626572;font-size:16px;line-height:1.75}.blog-intro a{color:var(--blue);font-weight:700;text-decoration:underline;text-underline-offset:3px}.category-btn,.load-more,.slider-dots button,.read-article,.read-link,.author-mini,.verified-author{touch-action:manipulation}.category-btn:focus-visible,.load-more:focus-visible,.slider-dots button:focus-visible,.read-article:focus-visible,.read-link:focus-visible,.author-mini:focus-visible,.verified-author:focus-visible,.resource-grid>a:focus-visible,.program-grid>a:focus-visible,summary:focus-visible{outline:3px solid rgba(18,100,216,.35);outline-offset:3px}.blog-faq{display:grid;grid-template-columns:300px minmax(0,1fr);gap:44px;padding:64px 0 74px}.faq-heading small{color:var(--blue);font-size:12px;font-weight:800;letter-spacing:1.2px}.faq-heading h2{margin:8px 0;color:var(--ink);font:700 30px/1.3 Poppins,sans-serif}.faq-heading p{margin:0;color:var(--muted)}.faq-list{display:grid;gap:12px}.faq-list details{border:1px solid var(--line);border-radius:12px;background:#fff}.faq-list summary{position:relative;padding:18px 48px 18px 20px;color:var(--ink);font:600 15px/1.5 Poppins,sans-serif;cursor:pointer;list-style:none}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:'+';position:absolute;right:20px;top:16px;color:var(--blue);font-size:22px}.faq-list details[open] summary:after{content:'–'}.faq-list p{margin:0;padding:0 20px 20px;color:#636673;font-size:15px;line-height:1.75}.faq-list p a{color:var(--blue);font-weight:700;text-decoration:underline}.resource-grid>a,.program-grid>a{min-height:44px}.footer-social-media-icons a{min-width:44px;min-height:44px;line-height:44px}
.programs-intro{max-width:620px;margin:-20px 0 26px;color:#666a77;font-size:15px}.program-photo-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;max-width:1040px}.program-photo-card{position:relative;isolation:isolate;display:flex;min-height:220px;overflow:hidden;flex-direction:column;align-items:flex-start;justify-content:flex-end;padding:22px;border-radius:16px;background-position:center;background-size:cover;box-shadow:0 12px 28px rgba(8,22,62,.14);color:#fff;transition:transform .25s ease,box-shadow .25s ease}.program-photo-card:before{content:"";position:absolute;z-index:-1;inset:0;background:linear-gradient(180deg,rgba(5,12,41,.05) 5%,rgba(4,12,38,.94) 100%)}.program-photo-card:after{content:"";position:absolute;z-index:-2;inset:0;background:linear-gradient(135deg,#122c79,#7733d4)}.program-photo-card:hover{transform:translateY(-4px);box-shadow:0 18px 34px rgba(8,22,62,.2);color:#fff}.program-photo-card:focus-visible{outline:3px solid rgba(18,100,216,.4);outline-offset:4px}.program-photo-card strong{margin:7px 0 8px;color:#fff;font:800 28px/1.04 Poppins,sans-serif;text-transform:uppercase;text-shadow:0 2px 12px rgba(0,0,0,.25)}.program-kicker{color:#ffb25c;font-size:11px;font-weight:800;letter-spacing:1.1px}.program-type{padding:4px 9px;border-radius:6px;background:rgba(255,255,255,.94);color:#132453;font-size:11px;font-weight:700}.program-cta{position:absolute;right:18px;bottom:18px;display:inline-flex;align-items:center;gap:4px;color:#fff;font-size:11px;font-weight:700}.program-marketing{background-image:url('https://images.unsplash.com/photo-1460925895917-afdab827c52f?auto=format&fit=crop&w=760&q=82')}.program-web{background-image:url('https://images.unsplash.com/photo-1461749280684-dccba630e2f6?auto=format&fit=crop&w=760&q=82')}.program-design{background-image:url('https://images.unsplash.com/photo-1545235617-9465d2a55698?auto=format&fit=crop&w=760&q=82')}.program-stack{background-image:url('https://images.unsplash.com/photo-1555066931-4365d14bab8c?auto=format&fit=crop&w=760&q=82')}.program-data{background-image:url('https://images.unsplash.com/photo-1551288049-bebda4e38f71?auto=format&fit=crop&w=760&q=82')}.program-ai{background-image:url('https://images.unsplash.com/photo-1677442136019-21780ecad995?auto=format&fit=crop&w=760&q=82')}
@media(max-width:680px){body{overflow-x:hidden}.blog-title{padding-top:18px}.breadcrumbs{margin-bottom:7px;font-size:12px}.blog-title h1{font-size:24px;line-height:1.28}.blog-intro{margin-top:9px;font-size:15px;line-height:1.65}.featured-carousel{padding-top:24px}.lead-meta{flex-wrap:wrap;row-gap:5px;font-size:11px;line-height:1.45}.lead-meta a{min-height:32px;display:inline-flex;align-items:center}.lead-content h3{font-size:20px;line-height:1.4}.lead-content>p{font-size:15px;line-height:1.65}.lead-bottom{gap:10px}.verified-author{min-height:48px}.verified-author b{font-size:13px}.verified-author small{font-size:12px}.read-article{display:inline-flex;align-items:center;min-height:44px;font-size:13px}.slider-dots button{min-width:44px;min-height:44px;background:transparent;position:relative}.slider-dots button:before{content:'';position:absolute;top:18px;left:18px;width:8px;height:8px;border-radius:20px;background:#d7dbe4}.slider-dots button.active{width:44px;background:transparent}.slider-dots button.active:before{left:8px;width:28px;background:var(--blue)}.category-row{margin-right:-14px;padding-right:14px}.category-btn{min-height:44px;padding:10px 15px;font-size:13px}.article-grid{margin-right:-14px;padding-right:14px}.article-card{flex-basis:86%}.article-meta{font-size:12px;line-height:1.4}.article-body h3{font-size:16px;line-height:1.5}.article-footer{gap:10px}.author-mini,.read-link{display:inline-flex;align-items:center;min-height:44px;font-size:12px;line-height:1.35}.author-mini{max-width:62%}.read-link{white-space:nowrap}.resource-grid h3{font-size:15px}.resource-grid p,.program-grid p,.program-grid b{font-size:13px}.program-grid>a{flex-basis:88%}.blog-faq{display:block;padding:44px 0 52px}.faq-heading{margin-bottom:20px}.faq-heading h2{font-size:24px}.faq-heading p{font-size:15px}.faq-list summary{min-height:56px;padding:16px 46px 16px 16px;font-size:15px}.faq-list summary:after{right:16px}.faq-list p{padding:0 16px 17px;font-size:15px}}
@media(max-width:991px){.program-photo-grid{grid-template-columns:repeat(2,minmax(0,1fr));max-width:720px}}
@media(max-width:680px){.programs-intro{margin-top:-15px;margin-bottom:20px;font-size:14px;line-height:1.6}.program-photo-grid{grid-template-columns:1fr;gap:14px;max-width:360px;margin:0 auto}.program-photo-card{min-height:190px;padding:18px;border-radius:14px}.program-photo-card strong{font-size:24px}.program-cta{right:16px;bottom:16px}}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;padding:0;margin:-1px;clip:rect(0,0,0,0);white-space:nowrap;border:0}.program-photo-card{min-height:0;aspect-ratio:627/461;padding:0;background-image:url('coi-programs-sprite.png');background-repeat:no-repeat;background-size:326.63% 234.27%;box-shadow:0 10px 24px rgba(8,22,62,.12)}.program-photo-card:before,.program-photo-card:after{display:none}.program-marketing{background-position:3.87% 7.92%}.program-web{background-position:50.74% 7.92%}.program-design{background-position:97.68% 7.92%}.program-stack{background-position:3.87% 88.69%}.program-data{background-position:50.74% 88.69%}.program-ai{background-position:97.68% 88.69%}
.editorial-proof{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:18px}.editorial-proof span{display:inline-flex;align-items:center;gap:7px;color:#525765;font-size:13px}.editorial-proof i{color:var(--blue);font-size:17px}.editorial-proof b{font-weight:600}
@media(max-width:680px){.program-photo-card{min-height:0;padding:0;border-radius:12px}}
@media(max-width:680px){.editorial-proof{display:grid;gap:8px;margin-top:15px}.editorial-proof span{font-size:12px}}