/* Avi Learner shared shell v3. Existing palette and typefaces, scoped to shared chrome. */
.site-header{position:sticky;top:0;z-index:30;background:#fff;border-bottom:1px solid var(--line)}
.site-header .wrap{height:80px;min-height:80px;padding-top:0;padding-bottom:0;gap:32px;display:flex;align-items:center;justify-content:space-between;flex-wrap:nowrap}
.site-header .brand,.site-footer-shared .brand{display:inline-flex;align-items:center;min-height:44px;gap:11px;font:700 23px/1.2 Manrope,sans-serif;letter-spacing:-1px;white-space:nowrap}
.brand-symbol{width:40px;height:40px;display:block;flex:none}
.brand-wordmark{display:block}.brand-dot{color:var(--blue)}
.site-header .navlinks{display:flex;gap:17px;align-items:center;font-size:13px;font-weight:600}
.site-header .nav-group{position:relative}
.site-header .nav-group summary{display:flex;align-items:center;gap:7px;min-height:44px;padding:0 5px;color:var(--navy);font-size:13px;letter-spacing:0;white-space:nowrap}
.site-header .nav-group summary:after{content:'';width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:translateY(-2px) rotate(45deg);font-size:inherit}
.site-header .nav-group[open] summary:after{transform:translateY(2px) rotate(225deg)}
.site-header .nav-group[open] summary,.site-header .nav-group[data-current] summary{color:var(--blue)}
.site-header .nav-group .nav-panel{top:calc(100% + 8px);left:0;right:auto;min-width:250px;max-width:310px;max-height:calc(100dvh - 96px);overflow-y:auto;padding:10px;border:1px solid var(--line);border-radius:8px;background:#fff;box-shadow:0 12px 30px #112b3e16;gap:1px}
.site-header .nav-group:nth-of-type(4) .nav-panel{left:auto;right:0}
.site-header .nav-panel a{display:flex;align-items:center;min-height:44px;padding:10px 12px;line-height:1.45;border-radius:4px;font-size:13px}
.site-header .nav-panel a:hover,.site-header .nav-panel a[aria-current]{background:var(--paper);text-decoration:none;color:var(--navy)}
.site-header .nav-panel a[aria-current]{box-shadow:inset 3px 0 var(--blue)}
.site-header .shell-search{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:44px;padding:0 5px;white-space:nowrap}
.shell-search svg{stroke:currentColor;stroke-width:1.7;fill:none;stroke-linecap:round}
.site-header .shell-start{display:flex;justify-content:center;align-items:center;min-height:44px;padding:0 18px;background:var(--navy);border:1px solid var(--navy);border-radius:6px;color:#fff;white-space:nowrap}
.site-header .shell-start:hover{color:var(--navy);background:var(--mint);border-color:var(--mint)}
.site-header .menu{display:none;align-items:center;justify-content:center;gap:9px;min-height:44px;min-width:80px;padding:9px 10px;border:1px solid var(--line);border-radius:5px;background:#fff;color:var(--navy);font:600 13px/1.3 'DM Sans',sans-serif}
.menu-icon{display:block;width:17px;height:12px;border-top:1.5px solid currentColor;border-bottom:1.5px solid currentColor;position:relative}.menu-icon:after{content:'';position:absolute;left:0;top:4px;width:17px;border-top:1.5px solid currentColor}
.menu[aria-expanded=true] .menu-icon{border:0}.menu[aria-expanded=true] .menu-icon:before,.menu[aria-expanded=true] .menu-icon:after{content:'';position:absolute;left:0;top:5px;width:17px;border-top:1.5px solid currentColor;transform:rotate(45deg)}.menu[aria-expanded=true] .menu-icon:after{transform:rotate(-45deg)}
.site-header :is(a,button,summary):focus-visible{outline:3px solid var(--navy);outline-offset:3px}
.site-header .brand:focus-visible{border-radius:4px}
.site-footer-shared{padding:44px 0 24px;background:var(--navy);color:#fff}
.site-footer-shared .footer-top{display:grid;grid-template-columns:1.05fr 1.65fr;gap:60px;align-items:start}
.site-footer-shared .brand-dot{color:var(--mint)}
.site-footer-shared .footer-brand p{font-size:13px;line-height:1.6;color:#bdd0d8;max-width:260px;margin:16px 0 0}
.site-footer-shared .footer-nav{display:grid;grid-template-columns:1fr 1.1fr 1.15fr;gap:26px}
.site-footer-shared .footer-group h2{font:600 12px/1.5 'DM Sans',sans-serif;letter-spacing:.02em;color:var(--mint);margin:3px 0 11px}
.site-footer-shared .footer-group ul{list-style:none;margin:0;padding:0}
.site-footer-shared .footer-group li{margin:0;padding:0}
.site-footer-shared .footer-group a,.site-footer-shared .footer-group button{display:inline-flex;align-items:center;min-height:36px;margin:0;padding:6px 0;border:0;border-radius:0;background:none;color:#fff;font:400 12px/1.5 'DM Sans',sans-serif;text-align:left;text-decoration:none;letter-spacing:0}
.site-footer-shared .footer-group a:hover,.site-footer-shared .footer-group button:hover{text-decoration:underline;text-underline-offset:4px}
.site-footer-shared :is(a,button):focus-visible{outline:3px solid var(--mint);outline-offset:4px}
.site-footer-shared .footer-bottom{display:flex;justify-content:space-between;align-items:start;gap:40px;border-top:1px solid #365062;margin-top:30px;padding-top:22px;color:#bdd0d8;font:400 11px/1.6 'DM Sans',sans-serif}
.site-footer-shared .footer-bottom span:first-child{flex:none}.site-footer-shared .footer-bottom span:last-child{max-width:575px}
@media(max-width:1100px) and (min-width:1001px){.site-header .navlinks{gap:10px}.site-header .wrap{gap:18px}.site-header .brand{font-size:21px}.site-header .shell-start{padding:0 12px}}
@media(max-width:1000px){.site-header .wrap{height:auto;min-height:76px;padding-top:16px;padding-bottom:16px;flex-wrap:wrap;gap:0 16px}.site-header .brand{font-size:22px}.site-header.shell-ready .menu{display:inline-flex;margin-left:auto}.site-header .navlinks{display:flex;position:static;flex-direction:column;align-items:stretch;width:100%;padding:12px 0 0;gap:2px;box-shadow:none;background:#fff}.site-header.shell-ready .navlinks{display:none}.site-header.shell-ready .navlinks.open{display:flex;max-height:calc(100dvh - 92px);overflow-y:auto;padding:12px 6px 6px;margin:0 -6px;width:calc(100% + 12px)}.site-header .nav-group{width:100%;border-bottom:1px solid var(--line)}.site-header .nav-group summary{padding:8px 4px;justify-content:space-between;min-height:48px}.site-header .nav-group .nav-panel{position:static;min-width:0;max-width:none;max-height:none;overflow:visible;margin:0 0 8px;padding:4px 8px;border:0;box-shadow:none;background:var(--paper)}.site-header .nav-panel a{min-height:44px;padding:10px 12px}.site-header .shell-search{justify-content:flex-start;min-height:48px;padding:8px 4px}.site-header .shell-start{margin-top:7px;min-height:46px}.site-footer-shared .footer-top{grid-template-columns:1fr;gap:32px}.site-footer-shared .footer-nav{gap:24px}.site-footer-shared .footer-bottom{gap:24px}.site-header:not(.shell-ready){position:static}}
@media(max-width:650px){.site-header .wrap{padding-top:14px;padding-bottom:14px;min-height:72px}.site-header .brand{font-size:21px;gap:9px}.brand-symbol{width:36px;height:36px}.site-header.shell-ready .navlinks.open{max-height:calc(100dvh - 86px)}.site-footer-shared{padding-top:34px}.site-footer-shared .footer-nav{grid-template-columns:1fr 1fr;gap:24px 18px}.site-footer-shared .footer-group:last-child{grid-column:1/-1}.site-footer-shared .footer-group:last-child ul{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}.site-footer-shared .footer-group a,.site-footer-shared .footer-group button{min-height:44px;padding:10px 0}.site-footer-shared .footer-group h2{margin-bottom:7px}.site-footer-shared .footer-bottom{flex-direction:column;gap:12px;margin-top:24px;padding-top:20px}.site-footer-shared .footer-bottom span:first-child{flex:auto}}
@media(max-width:360px){.site-header .wrap{padding-left:16px;padding-right:16px;gap:0 10px}.site-header .brand{font-size:19px;gap:8px}.site-header .menu{min-width:74px;padding-left:8px;padding-right:8px}.site-footer-shared .brand{font-size:22px}}
@media(prefers-reduced-motion:reduce){.site-header *{scroll-behavior:auto}}