/* Shared public-site header matched to the Dev/Production navigation. */
de-resource-header{display:block;position:relative;z-index:30}
.r-site-header{--r-ink:#0e0a14;--r-ink2:#3b2e4a;--r-muted:#6b5e74;--r-rule:#e7e1da;--r-warm:#f4efe9;--r-blue:#1f3fcf;--r-violet:#6b1fb8;--r-pink:#c7197a;position:sticky;top:0;z-index:30;height:67px;background:rgba(240,238,233,.82);border-bottom:1px solid rgba(231,225,218,.9);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);color:var(--r-ink);font-family:"Inter Tight",system-ui,sans-serif}
.r-site-header *{box-sizing:border-box}
.r-site-header .r-wrap{width:min(1280px,100%);margin:0 auto}
.r-site-header .r-nav{height:66px;display:flex;align-items:center;justify-content:space-between}
.r-site-header .r-brand{display:flex;align-items:center;gap:12px;color:var(--r-ink);text-decoration:none}
.r-site-header .r-brand img{width:40px;height:40px;object-fit:contain}
.r-site-header .r-brand span{font-size:16px;font-weight:800;white-space:nowrap}
.r-site-header .r-links{height:66px;display:flex;align-items:center;gap:30px}
.r-site-header .r-links>a,.r-site-header .r-program-menu>button{height:66px;padding:25px 0;border:0;background:none;color:var(--r-ink2);font:500 13.5px/1 "Inter Tight",system-ui,sans-serif;text-decoration:none;text-transform:uppercase;cursor:pointer;white-space:nowrap}
.r-site-header .r-links>a[aria-current="page"],.r-site-header .r-program-menu>button[aria-current="page"]{color:var(--r-violet)}
.r-site-header .r-program-menu{position:static}
.r-site-header .r-program-menu>button{display:inline-flex;align-items:center;gap:4px;color:var(--r-violet);font-weight:600;letter-spacing:-.005em;text-transform:none}
.r-site-header .r-program-menu>button span{font-size:14px}
.r-site-header .r-program-dropdown{position:fixed;z-index:1000;top:66px;left:0;right:0;width:100vw;min-height:400px;padding:32px max(15px,calc((100vw - 1250px)/2));display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;background:#f0eee9;box-shadow:0 10px 30px rgba(0,0,0,.1);opacity:0;visibility:hidden;transform:translateY(-8px);transition:opacity .2s,visibility .2s,transform .2s}
.r-site-header .r-resources-dropdown{min-height:250px}
.r-site-header .r-program-menu:hover .r-program-dropdown,.r-site-header .r-program-menu:focus-within .r-program-dropdown,.r-site-header .r-program-menu.open .r-program-dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.r-site-header .r-program-group{min-width:0;padding:0 28px;border-right:1px solid var(--r-rule)}
.r-site-header .r-program-group:first-child{padding-left:8px}
.r-site-header .r-program-group:last-child{padding-right:8px;padding-left:29px;border-right:0}
.r-site-header .r-program-head{margin:0 0 18px;display:flex;align-items:center;justify-content:space-between}
.r-site-header .r-program-head h3{margin:0;display:flex;align-items:center;gap:10px;color:var(--r-blue);font:600 11px/1 "JetBrains Mono",monospace;letter-spacing:.18em;text-transform:uppercase}
.r-site-header .r-program-head h3 i{width:20px;height:2px;display:block;background:currentColor}
.r-site-header .r-program-engineering .r-program-head h3{color:var(--r-pink)}
.r-site-header .r-program-ai .r-program-head h3{color:var(--r-violet)}
.r-site-header .r-program-head>span{color:var(--r-muted);font:500 10.5px/1 "JetBrains Mono",monospace;letter-spacing:.14em;text-transform:uppercase;white-space:nowrap}
.r-site-header .r-program-list{display:flex;flex-direction:column;gap:2px}
.r-site-header .r-program-list a{padding:12px 10px;display:grid;grid-template-columns:38px minmax(0,1fr);gap:14px;align-items:start;border-radius:10px;color:var(--r-ink);text-decoration:none}
.r-site-header .r-program-list a:hover,.r-site-header .r-program-list a[aria-current="page"]{background:#fff}
.r-site-header .r-program-icon{width:38px;height:38px;margin-top:2px;display:flex;align-items:center;justify-content:center;border:1px solid var(--r-rule);border-radius:10px;background:#fff;color:var(--r-ink2)}
.r-site-header .r-program-icon svg{width:18px;height:18px;display:block}
.r-site-header .r-program-body{min-width:0;display:flex;flex-direction:column;gap:4px}
.r-site-header .r-program-body strong{color:var(--r-ink);font-size:14.5px;font-weight:700;line-height:1.25;letter-spacing:-.008em}
.r-site-header .r-program-body em{width:max-content;padding:2px 9px;border-radius:99px;background:rgba(199,25,122,.1);color:var(--r-pink);font:normal 600 9px/1.4 "JetBrains Mono",monospace;letter-spacing:.14em;text-transform:uppercase}
.r-site-header .r-program-body small{overflow:hidden;color:var(--r-ink2);font-size:12.5px;font-weight:500;line-height:1.45;text-overflow:ellipsis;white-space:nowrap}
.r-site-header .r-nav-actions{display:flex;align-items:center;gap:10px;white-space:nowrap}
.r-site-header .r-signin{color:var(--r-ink2);font-size:13.5px;font-weight:500;text-decoration:none}
.r-site-header .r-btn{min-height:34px;padding:9px 16px;border:0;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(90deg,var(--r-blue),var(--r-violet) 55%,var(--r-pink));color:#fff;font:600 13px/1 "Inter Tight",system-ui,sans-serif;cursor:pointer;text-decoration:none}
.r-site-header .r-demo-mobile{display:none}
.r-site-header .r-menu-toggle{display:none;width:40px;height:44px;padding:0;border:0;background:transparent;color:var(--r-ink);cursor:pointer}
.r-site-header .r-menu-icon,.r-site-header .r-menu-icon::before,.r-site-header .r-menu-icon::after{width:28px;height:3px;display:block;border-radius:2px;background:currentColor;transition:transform .2s,opacity .2s}
.r-site-header .r-menu-icon{position:relative;margin:auto}
.r-site-header .r-menu-icon::before,.r-site-header .r-menu-icon::after{content:"";position:absolute;left:0}
.r-site-header .r-menu-icon::before{top:-9px}.r-site-header .r-menu-icon::after{top:9px}
.r-site-header .r-menu-toggle.is-open .r-menu-icon{background:transparent}
.r-site-header .r-menu-toggle.is-open .r-menu-icon::before{top:0;transform:rotate(45deg)}
.r-site-header .r-menu-toggle.is-open .r-menu-icon::after{top:0;transform:rotate(-45deg)}
.r-site-header .r-mobile-actions{display:none}
@media(max-width:991px){
  de-resource-header{z-index:10000}
  .r-site-header{height:60px;background:#f0eee9}
  .r-site-header .r-wrap{width:100%;padding:0 16px}
  .r-site-header .r-nav{height:60px}
  .r-site-header .r-brand{gap:8px}
  .r-site-header .r-brand img{width:40px;height:40px}
  .r-site-header .r-brand span{font-size:17px}
  .r-site-header .r-nav-actions{margin-left:auto;gap:10px}
  .r-site-header .r-nav-actions .r-signin{display:none}
  .r-site-header .r-nav-actions .r-btn{min-height:40px;padding:10px 18px;background:#333;font-size:14px}
  .r-site-header .r-demo-desktop{display:none}.r-site-header .r-demo-mobile{display:inline}
  .r-site-header .r-menu-toggle{display:block}
  .r-site-header .r-links{position:fixed;z-index:999;top:60px;right:0;bottom:0;left:54px;width:auto;height:calc(100vh - 60px);padding:20px 22px 100px;display:none;overflow-y:auto;background:#fff;box-shadow:-8px 14px 24px rgba(0,0,0,.12)}
  .r-site-header .r-links.is-open{display:block}
  .r-site-header .r-links>a,.r-site-header .r-program-menu>button{width:100%;height:auto;padding:17px 0;display:flex;align-items:center;border-bottom:1px solid var(--r-rule);font-size:16px;text-align:left}
  .r-site-header .r-program-menu>button{justify-content:flex-start}
  .r-site-header .r-program-dropdown{position:static;width:100%;height:50vh;min-height:0;padding:0;display:none;grid-template-columns:1fr;overflow-y:auto;background:#f9f9f9;box-shadow:none;opacity:1;visibility:visible;transform:none}
  .r-site-header .r-resources-dropdown{height:auto;max-height:50vh}
  .r-site-header .r-program-menu.open .r-program-dropdown{display:grid}
  .r-site-header .r-program-group{padding:14px 18px;border-right:0;border-bottom:1px solid var(--r-rule)}
  .r-site-header .r-program-group:first-child{padding-left:18px}
  .r-site-header .r-program-group:last-child{padding-right:18px;padding-left:18px;border-bottom:0}
  .r-site-header .r-program-head{margin:6px 0 10px}
  .r-site-header .r-program-head h3{max-width:160px;text-align:center}
  .r-site-header .r-program-list a{min-height:0;padding:8px 6px;grid-template-columns:34px minmax(0,1fr);gap:10px}
  .r-site-header .r-program-icon{width:34px;height:34px}
  .r-site-header .r-mobile-actions{padding:28px 0;display:flex;justify-content:center}
  .r-site-header .r-mobile-actions .r-btn{min-height:42px;padding:11px 20px;font-size:14px}
}
@media(max-width:390px){.r-site-header .r-brand span{font-size:16px}.r-site-header .r-nav-actions .r-btn{padding:10px 15px}}
@media(prefers-reduced-motion:reduce){.r-site-header *{transition:none!important}}