/* Shared navigation across the website and native Study Hub. */
:root{--site-header-height:90px;--section-nav-height:68px}
.club-header,.club-header *,.section-nav,.section-nav *{box-sizing:border-box}
.club-header{position:sticky;top:0;z-index:70;background:#fff;color:#112235;border-bottom:1px solid #e1e8ee;font-family:Arial,Helvetica,sans-serif;isolation:isolate}
.site-header-inner{height:var(--site-header-height);width:min(1260px,calc(100% - 80px));margin:auto;display:flex;align-items:center;gap:24px;position:relative}
.site-brand{display:block;margin-right:auto;flex-shrink:0}.site-brand img{display:block;width:77px;height:74px;object-fit:contain;max-width:100%;margin:0}
.site-desktop{display:flex;align-items:center;gap:3px}.club-header a{text-decoration:none}.site-nav-group>summary,.site-top-link{display:flex;align-items:center;gap:7px;padding:15px 13px;font-size:14px;font-weight:700;white-space:nowrap;line-height:1.3;border-radius:5px;color:#19334b;cursor:pointer;list-style:none}
.club-header summary::-webkit-details-marker,.section-jump>summary::-webkit-details-marker{display:none}.site-nav-group>summary svg{transition:transform .18s}.site-nav-group[open]>summary svg{transform:rotate(180deg)}
.site-nav-group>summary:hover,.site-nav-group[open]>summary,.site-top-link:hover,.site-nav-group.is-active>summary,.site-top-link.is-active{background:#edf5fb;color:#076eaf}
.site-trial{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:12px 19px;background:#087ac7;border:1px solid #087ac7;color:#fff!important;border-radius:5px;font-size:14px;font-weight:700;line-height:1.4;white-space:nowrap;transition:background .18s}.site-trial:hover{background:#0767a8}
.site-mega{position:absolute;top:calc(100% - 1px);left:0;right:0;display:grid;grid-template-columns:1fr 1.8fr;background:#fff;border:1px solid #dce7ef;border-radius:0 0 12px 12px;overflow:hidden;box-shadow:0 22px 44px #09203721;animation:menu-enter .18s ease-out}
.site-mega-intro{padding:30px;background:#102a40;color:white;display:flex;flex-direction:column;align-items:flex-start;gap:15px}.site-mega-intro>span{font-size:11px;letter-spacing:.18em;font-weight:700;color:#8acbfa}.site-mega-intro>strong{font-size:27px;line-height:1.15;letter-spacing:-.025em;max-width:270px}.site-mega-intro p{font-size:14px;line-height:1.65;color:#c7d8e7;margin:0;max-width:300px}.site-mega-intro>a{color:#fff;border-bottom:1px solid #6aa1c7;font-size:14px;font-weight:700;padding-bottom:4px;margin-top:auto}
.site-mega-links{display:grid;grid-template-columns:1fr 1fr;gap:8px;padding:22px;align-content:center}.site-menu-link{display:flex;flex-direction:column;justify-content:center;gap:6px;padding:17px 18px;border:1px solid transparent;border-radius:6px;color:#112235;transition:background .18s,border-color .18s}.site-menu-link strong{font-size:16px;line-height:1.35;letter-spacing:-.015em}.site-menu-link span{font-size:14px;line-height:1.5;color:#5a6e80}.site-menu-link:hover,.site-menu-link:focus-visible{background:#f1f7fb;border-color:#dbeaf5}.site-menu-action{grid-column:1/-1;font-size:14px;font-weight:700;background:#edf5fb;color:#076eaf;padding:13px 18px;border-radius:5px;line-height:1.4}.site-menu-action:hover{background:#deeffa}
.site-mobile{display:none}.site-skip{position:fixed;top:-100px;left:15px;padding:12px 20px;background:white;color:#087ac7;z-index:110;font-size:16px}.site-skip:focus{top:12px}.club-header :focus-visible,.section-nav :focus-visible{outline:3px solid #087ac7;outline-offset:4px}
.section-nav{position:sticky;top:var(--site-header-height);z-index:45;background:#fffffffa;border-bottom:1px solid #dfe7ee;font-family:Arial,Helvetica,sans-serif;color:#16314a}.section-nav-inner{min-height:var(--section-nav-height);display:flex;align-items:center;gap:22px}.section-nav-label{font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.1em;color:#647889;white-space:nowrap}.section-nav-links{display:flex;align-items:center;gap:5px;flex-wrap:wrap;margin-left:auto}.section-nav-links a{font-size:14px;font-weight:600;line-height:1.3;padding:11px 16px;border-radius:25px;border:1px solid transparent;color:#3f566a;text-decoration:none;transition:background .18s,color .18s}.section-nav-links a:hover{background:#f0f5f9;color:#087ac7}.section-nav-links a.is-current{background:#087ac7;color:white;border-color:#087ac7}.section-jump{display:none}
html[data-navigation]{scroll-padding-top:calc(var(--site-header-height) + var(--section-nav-height) + 18px)}
@media(prefers-reduced-motion:no-preference){html[data-navigation]{scroll-behavior:smooth}@view-transition{navigation:auto}::view-transition-old(root){animation:page-out .13s ease-in both}::view-transition-new(root){animation:page-in .18s ease-out both}}
@keyframes menu-enter{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}@keyframes page-out{to{opacity:0}}@keyframes page-in{from{opacity:0}to{opacity:1}}
@media(max-width:1180px){.site-header-inner{gap:14px;width:calc(100% - 48px)}.site-nav-group>summary,.site-top-link{padding:14px 9px}.site-trial{padding-inline:15px}.section-nav-label{display:none}.section-nav-links{margin:auto}}
@media(max-width:1180px){:root{--site-header-height:80px}.site-brand img{width:67px;height:66px}.site-desktop{display:none}.site-mobile{display:block}.site-mobile>summary{display:flex;gap:9px;align-items:center;justify-content:center;min-height:46px;padding:11px 12px;font-size:14px;font-weight:700;line-height:1;border:1px solid #cbd7e0;border-radius:5px;cursor:pointer;list-style:none}.site-menu-close-icon{display:none}.site-mobile[open]>summary{background:#112d44;border-color:#112d44;color:white}.site-mobile[open] .site-menu-open-icon{display:none}.site-mobile[open] .site-menu-close-icon{display:block}.site-mobile-panel{position:absolute;top:calc(100% - 1px);left:-24px;right:-24px;max-height:calc(100dvh - var(--site-header-height));overflow-y:auto;overscroll-behavior:contain;padding:22px 28px 30px;background:white;border-top:1px solid #e1e8ee;box-shadow:0 24px 38px #09203730;animation:menu-enter .18s ease-out}.site-mobile-heading{display:flex;align-items:center;justify-content:space-between;padding:0 0 15px}.site-mobile-heading>span{color:#718394;font-size:11px;letter-spacing:.14em;font-weight:800}.site-mobile-heading>a{font-size:14px;color:#087ac7;font-weight:700}.site-mobile-group{border-bottom:1px solid #e0e8ef}.site-mobile-group>summary{display:flex;align-items:center;gap:16px;padding:18px 0;font-size:22px;font-weight:750;line-height:1.25;list-style:none;cursor:pointer}.site-menu-number{font-size:11px;color:#087ac7;font-weight:700;letter-spacing:.06em;width:20px;flex-shrink:0}.site-mobile-group>summary>svg{margin-left:auto;transition:transform .18s}.site-mobile-group[open]>summary>svg{transform:rotate(180deg)}.site-mobile-group.is-active>summary,.site-mobile-direct.is-active{color:#087ac7}.site-mobile-links{display:grid;grid-template-columns:1fr 1fr;gap:7px;padding:0 0 18px 35px}.site-mobile-links .site-menu-link{padding:12px 13px;background:#f5f8fb}.site-mobile-links .site-menu-link strong{font-size:14px}.site-mobile-links .site-menu-link span{font-size:12px}.site-mobile-direct{display:flex;gap:16px;align-items:center;padding:19px 0;border-bottom:1px solid #e0e8ef;font-size:22px;font-weight:700;line-height:1.25;color:#112235}.site-mobile-direct small{display:block;color:#63778a;font-size:13px;font-weight:400;margin-top:7px;line-height:1.45}.site-mobile-bottom{display:flex;justify-content:space-between;gap:18px;padding-top:22px}.site-mobile-bottom>a{font-size:14px;color:#315570;font-weight:700}}
@media(max-width:760px){:root{--site-header-height:76px;--section-nav-height:70px}.site-header-inner{width:calc(100% - 32px);gap:9px}.site-brand img{width:62px;height:62px}.site-trial{font-size:13px;min-height:42px;padding:10px 12px}.site-mobile>summary{min-height:42px;padding:10px;gap:6px}.site-mobile-panel{left:-16px;right:-16px;padding:20px 22px 28px}.section-nav-inner{display:block;padding-block:9px}.section-nav-links{display:none}.section-jump{display:block;position:relative}.section-jump>summary{display:flex;align-items:center;justify-content:space-between;min-height:50px;gap:20px;padding:8px 13px;background:#f0f6fb;border:1px solid #d8e6f0;border-radius:6px;list-style:none;cursor:pointer}.section-jump>summary small{display:block;font-size:10px;text-transform:uppercase;letter-spacing:.1em;font-weight:700;color:#647889;margin:0 0 3px}.section-jump>summary strong{display:block;font-size:14px;line-height:1.2;color:#163b57}.section-jump>summary svg{color:#087ac7;transition:transform .18s}.section-jump[open]>summary svg{transform:rotate(180deg)}.section-jump>div{position:absolute;left:0;right:0;top:calc(100% + 6px);display:grid;grid-template-columns:1fr 1fr;gap:6px;padding:8px;background:#fff;border:1px solid #d8e6f0;border-radius:7px;box-shadow:0 12px 20px #142d4514;animation:menu-enter .18s ease-out}.section-jump>div a{display:flex;align-items:center;min-height:44px;padding:11px 12px;font-size:14px;font-weight:600;line-height:1.35;background:#f4f7fa;color:#345871;border-radius:4px;text-decoration:none}.section-jump>div a.is-current{background:#087ac7;color:white}.section-jump:not([open])>div{display:none}}
@media(max-width:360px){.site-mobile>summary>span{display:none}.site-mobile-links{padding-left:0}.site-mobile-bottom{flex-wrap:wrap}}
@media(prefers-reduced-motion:reduce){html[data-navigation]{scroll-behavior:auto}.club-header *,.section-nav *{animation:none!important;transition:none!important}::view-transition-old(root),::view-transition-new(root){animation:none}}
.site-nav-group:not([open])>.site-mega,.site-mobile:not([open])>.site-mobile-panel,.site-mobile-group:not([open])>.site-mobile-links{display:none}

.site-menu-link strong .site-external-icon{display:inline;color:#087ac7;font-size:16px}.site-nav-group[data-nav-section="hub"]>summary{color:#076eaf}.site-menu-link[aria-current="page"]{background:#edf5fb;border-color:#d9e8f3}
@media(max-width:1180px){.site-mobile-group[data-nav-section="hub"] .site-mobile-links{grid-template-columns:1fr}}