:root{--navy:#1a2a3a;--gold:#c9a84c;--teal:#2d8f8f;--ink:#222;--muted:#536271;--line:#dde4e9;--paper:#f5f5f5;--white:#fff}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:2rem}body{margin:0;color:var(--ink);font-family:Roboto,'Open Sans',Arial,sans-serif;font-size:17px;line-height:1.75;background:var(--white)}a{color:#176b70;text-underline-offset:4px}a:hover{color:#795f15}button,a{touch-action:manipulation}button{font:inherit}img{max-width:100%;height:auto}h1,h2,h3,.brand{font-family:Inter,Poppins,Arial,sans-serif;color:var(--navy);line-height:1.2}h1{font-size:clamp(2.1rem,4.5vw,3.9rem);letter-spacing:-.045em;margin:.7rem 0 1.15rem;max-width:1000px}h2{font-size:clamp(1.5rem,2.5vw,2rem);letter-spacing:-.025em;margin:0 0 1.2rem}h3{font-size:1.25rem}p{margin:0 0 1.15rem}ul,ol{padding-left:1.5rem}li{margin:.5rem 0}strong{font-weight:700}.wrap{width:min(1200px,calc(100% - 48px));margin:auto}.skip{position:absolute;left:12px;top:-100px;background:white;padding:12px;z-index:20}.skip:focus{top:12px}:focus-visible{outline:3px solid #2d8f8f;outline-offset:5px}.topline{background:var(--navy);color:#d8e6ec;font-size:13px;letter-spacing:.05em;padding:7px 0}.topline .wrap{display:flex;justify-content:space-between;gap:20px}.masthead{border-bottom:1px solid var(--line);background:white}.masthead .wrap{display:flex;align-items:center;justify-content:space-between;gap:25px;min-height:92px}.brand{display:flex;align-items:center;gap:12px;font-size:21px;font-weight:800;letter-spacing:-.04em;text-decoration:none;white-space:nowrap}.brand-mark{display:grid;place-items:center;width:40px;height:40px;background:var(--navy);color:var(--gold);font-size:25px;border-radius:9px}.nav{display:flex;flex-wrap:wrap;gap:26px;font-size:15px;font-weight:600}.nav a{text-decoration:none;color:var(--navy)}.nav a[aria-current=page]{border-bottom:3px solid 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a{color:#d1dddd}.buttons{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}.button{display:inline-flex;align-items:center;justify-content:center;gap:22px;font-weight:700;font-size:15px;text-decoration:none;min-height:48px;padding:10px 19px;border-radius:6px;border:1px solid transparent}.gold{background:var(--gold);color:var(--navy)}.gold:hover{background:#b9973c;color:var(--navy)}.outline{border-color:#7e909c;color:white}.outline:hover{background:#2b3c4e;color:white}.band{border-bottom:1px solid var(--line);background:#f5f8f9}.band .wrap{display:flex;justify-content:space-between;gap:20px;padding:18px 0;font-size:14px;color:var(--muted)}.home-section{padding:62px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:24px}.section-head h2{margin:.45rem 0 0}.section-head a{font-size:15px}.cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.game-card{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:white;display:flex;flex-direction:column}.card-top{padding:24px 24px 0;display:flex;align-items:center;justify-content:space-between;gap:10px}.card-icon{width:70px;height:70px;object-fit:contain;border-radius:14px}.type-icon{width:70px;height:70px;border-radius:14px;display:grid;place-items:center;background:#eaf3f3;color:#236f73;font-size:32px}.card-tag{font-size:12px;color:var(--muted)}.card-body{padding:18px 24px 24px;display:flex;flex-direction:column;flex:1}.card-body h3{margin:0 0 10px}.card-body p{font-size:14px;color:var(--muted);line-height:1.6}.card-body .read{font-size:15px;margin-top:auto}.card-body .button{margin-top:18px;gap:7px;padding:8px 10px;min-height:42px;font-size:14px}.learning{background:#f3f6f7}.learning-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px}.learning-list{border-top:1px solid #ccd7dd}.learning-item{padding:18px 0;border-bottom:1px solid #ccd7dd;display:flex;gap:20px}.learning-item 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a{display:block;padding:7px 0;color:var(--muted);text-decoration:none;line-height:1.5}.sidebar a:hover{color:var(--teal)}article{min-width:0;max-width:880px}article section{margin-bottom:44px}article h3{margin-top:25px}article p{max-width:80ch}.note{background:#eef5f5;border-left:4px solid var(--teal);padding:18px 22px;font-size:15px;margin:24px 0;color:#334c56}.note strong{color:var(--navy)}.table-scroll{overflow:auto;border:1px solid var(--line);border-radius:8px}table{width:100%;border-collapse:collapse;font-size:15px;line-height:1.6}th{background:var(--navy);color:white;text-align:left;font-weight:600}th,td{padding:15px 18px;vertical-align:top;min-width:125px}td{border-bottom:1px solid var(--line)}tr:last-child td{border-bottom:0}tr:nth-child(even) td{background:#f5f8f9}.gallery{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;align-items:start}figure{margin:0;background:#f3f6f7;border:1px solid var(--line);border-radius:10px;overflow:hidden}figure img{display:block;margin:auto;max-height:510px;object-fit:contain;width:100%;padding:12px}figcaption{padding:15px;font-size:14px;line-height:1.6;color:#4a5e68}.faq details{border-top:1px solid var(--line);padding:18px 0}.faq details:last-child{border-bottom:1px solid var(--line)}summary{cursor:pointer;font-weight:600;color:var(--navy);padding-right:12px}details p{padding-top:14px;color:var(--muted);font-size:16px;margin:0}.related-links{display:flex;gap:10px;flex-wrap:wrap}.related-links a{background:#eef4f4;padding:10px 16px;text-decoration:none;border-radius:6px;font-size:15px}.directory{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;list-style:none;padding:0}.directory li{margin:0}.directory a{display:block;padding:12px 15px;border:1px solid var(--line);border-radius:6px;text-decoration:none;font-size:15px}.directory a:hover{background:#eef5f5}.source-note{font-size:14px;color:var(--muted);padding-top:20px;border-top:1px solid var(--line)}footer{background:var(--navy);color:#c1ced8;padding:45px 0 20px;font-size:14px}footer .brand{color:white;margin-bottom:16px}footer a{color:#dae7ea}footer .footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:45px}footer h3{color:white;font-size:16px;margin:0 0 18px}.footer-links{display:grid;grid-template-columns:1fr 1fr;gap:9px}.footer-links a{text-decoration:none}.footer-bottom{border-top:1px solid #41515e;margin-top:28px;padding-top:20px;font-size:13px}.footer-bottom p{margin-bottom:10px}.error-number{font-size:90px;color:var(--gold);font-weight:800}.callout{background:var(--navy);padding:26px;border-radius:10px;color:#d8e6e9;margin:24px 0}.callout h3{color:white;margin-top:0}.card-example{font-size:23px;color:var(--navy);letter-spacing:.06em;padding:20px;background:#f3f6f7;border-left:3px solid var(--gold);margin:18px 0;line-height:1.8}.muted{color:var(--muted)}.small{font-size:14px}.social-image{margin-top:28px;border-radius:8px}.noscript{background:#eef5f5;padding:12px;text-align:center;font-size:14px}@media(min-width:1300px){.wrap{width:min(1200px,calc(100% - 100px))}}@media(max-width:1000px){.cards{grid-template-columns:repeat(2,minmax(0,1fr))}.nav{gap:15px}.hero-layout{grid-template-columns:1fr}.hero-aside{display:none}.article-layout{grid-template-columns:185px minmax(0,1fr);gap:32px}.masthead .wrap{gap:15px}.brand{font-size:18px}}@media(max-width:720px){.wrap{width:calc(100% - 32px)}.masthead .wrap{flex-wrap:wrap;min-height:78px;padding:16px 0}.menu-button{display:block}.nav{width:100%;padding-top:14px;gap:12px 24px}.js .nav{display:none}.js .nav.open{display:flex}.topline .wrap span:last-child{display:none}.hero{padding:38px 0 44px}.hero p{font-size:17px}.hero h1{font-size:2.6rem}.band .wrap{flex-wrap:wrap;gap:5px 20px;padding:14px 0}.home-section{padding:40px 0}.learning-grid{grid-template-columns:1fr;gap:22px}.article-layout{display:block;padding-top:25px}.sidebar{position:static;margin-bottom:30px;padding-bottom:16px;border-bottom:1px solid var(--line)}.sidebar ol{display:flex;flex-wrap:wrap;gap:4px 18px;margin-bottom:0}.sidebar a{padding:4px 0}.page-intro{padding-bottom:25px}.intro-head{align-items:start}.intro-head img{width:64px;height:64px}.page-intro p{font-size:17px}.footer-grid{grid-template-columns:1fr!important;gap:25px!important}.section-head{align-items:start;flex-direction:column;gap:8px}.directory{grid-template-columns:1fr}.gallery{gap:12px}figure img{padding:6px;max-height:380px}figcaption{padding:10px;font-size:13px}.buttons .button{flex:1 1 auto}.table-scroll{max-width:100%}}@media(max-width:480px){.cards{grid-template-columns:1fr}.gallery{grid-template-columns:1fr}figure img{max-height:480px}.intro-head{display:block}.intro-head img{margin-bottom:10px}.hero h1{font-size:2.25rem}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media print{header,.sidebar,footer,.buttons,.skip{display:none}.article-layout{display:block}.wrap{width:100%}.hero{background:white;color:black}.hero h1{color:black}details{display:block}details>p{display:block}}

.compact-hero{padding:24px 0}.compact-hero .hero-aside{display:none}.compact-hero .hero-layout{display:block}.compact-hero h1{font-size:clamp(1.9rem,3vw,2.7rem);max-width:none}.compact-hero p{font-size:16px;max-width:950px}.compact-hero .buttons{margin-top:16px}.game-card h3{font-size:1.1rem}.card-body p{font-size:15px}.card-top{padding:18px 18px 0}.card-body{padding:14px 18px 20px}.site-logo{width:42px;height:42px;border-radius:10px;object-fit:contain}