.m4u-site-header{padding:0;background:#16469b;color:#fff;text-align:left;position:relative;z-index:1040;border-bottom:1px solid #ffffff20}.m4u-header-inner{display:grid;grid-template-columns:auto minmax(0,1fr) minmax(175px,240px) auto;gap:1.3rem;align-items:center;max-width:1400px;margin:auto;padding:.8rem 1.5rem;position:relative}.m4u-site-header .m4u-icon{width:20px;height:20px;flex:none}.m4u-brand{font:780 1.4rem/1.2 system-ui,sans-serif;letter-spacing:-.04em;color:#fff!important;text-decoration:none!important}.m4u-brand span{color:#d1e8ff}.m4u-desktop-nav{display:flex;justify-content:center;gap:1.1rem;align-items:center}.m4u-desktop-nav>a{color:#fff!important;text-decoration:none;font-size:.87rem;font-weight:560;white-space:nowrap;padding:.4rem 0}.m4u-desktop-nav>a:hover,.m4u-desktop-nav>a[aria-current="page"]{text-decoration:underline;text-underline-offset:.4em}.m4u-header-search{display:flex;align-items:center;border:1px solid #ffffff70;border-radius:8px;background:#ffffff10;margin:0;overflow:hidden}.m4u-header-search:focus-within{outline:2px solid #fff;outline-offset:2px}.m4u-header-search input{width:100%;min-width:0;background:transparent;border:0;outline:0;color:#fff;font-size:.82rem;padding:.65rem .7rem}.m4u-header-search input::placeholder{color:#e5edff;opacity:1}.m4u-header-search button{background:transparent;border:0;color:#fff;display:flex;align-items:center;justify-content:center;padding:.5rem .65rem;min-height:38px}.m4u-header-panel>summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:.4rem;padding:.55rem .6rem;border:1px solid #ffffff70;border-radius:8px;font-size:.84rem;font-weight:600;min-height:40px;user-select:none}.m4u-header-panel>summary::-webkit-details-marker{display:none}.m4u-header-panel[open]>summary{background:#ffffff1c}.m4u-account-name{max-width:9rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.m4u-account summary>.m4u-icon:last-child{width:14px;height:14px}.m4u-mobile-nav{display:none}.m4u-account-panel{position:absolute;right:1.5rem;top:calc(100% - .25rem);width:310px;max-width:calc(100vw - 2rem);padding:.65rem;background:var(--m4u-surface,#fff);border:1px solid var(--m4u-border,#d7e0ec);border-radius:11px;box-shadow:0 12px 35px #091d4c35;color:var(--m4u-text,#172337);max-height:calc(100dvh - 8rem);overflow:auto;text-align:left}.m4u-account-panel nav{display:grid}.m4u-account-panel a{color:var(--m4u-text,#172337)!important;text-decoration:none;display:block;padding:.55rem .7rem;border-radius:6px;font-size:.88rem;line-height:1.35;overflow-wrap:anywhere}.m4u-account-panel a:hover{background:var(--m4u-primary-soft,#eef3ff);color:var(--m4u-link,#1d4ed8)!important;text-decoration:underline}.m4u-account-identity{padding:.5rem .7rem;margin:0 0 .4rem;border-bottom:1px solid var(--m4u-border,#d7e0ec);overflow-wrap:anywhere}.m4u-account-identity strong,.m4u-account-identity span{display:block}.m4u-account-identity strong{font-size:.94rem}.m4u-account-identity span{font-size:.75rem;color:var(--m4u-muted,#526176);margin:.15rem 0 .45rem}.m4u-account-courses,.m4u-appearance,.m4u-account-bottom{border-top:1px solid var(--m4u-border,#d7e0ec);margin-top:.45rem;padding-top:.5rem}.m4u-account-courses>p,.m4u-appearance>p{font-size:.72rem;color:var(--m4u-muted,#526176);margin:.25rem .7rem .3rem;font-weight:650}.m4u-account-courses>a{font-size:.82rem}.m4u-appearance>div{display:flex;gap:.3rem;padding:.2rem .5rem .4rem}.m4u-appearance button{padding:.35rem .6rem;font-size:.78rem;border-radius:5px;border:1px solid var(--m4u-border,#d7e0ec);background:var(--m4u-surface,#fff);color:var(--m4u-text,#172337)}.m4u-appearance button[aria-pressed="true"]{background:#1d4ed8;color:#fff;border-color:#1d4ed8}.m4u-site-header summary:focus-visible,.m4u-site-header input:focus-visible,.m4u-site-header button:focus-visible,.m4u-site-header a:focus-visible{outline:2px solid #fff;outline-offset:3px}.m4u-account-panel a:focus-visible,.m4u-account-panel button:focus-visible{outline-color:var(--m4u-link,#1d4ed8)}.m4u-sr-only{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.m4u-site-footer{background:var(--m4u-surface,#fff)!important;color:var(--m4u-text,#172337)!important;border-top:1px solid var(--m4u-border,#d7e0ec);padding:1.7rem 1.5rem;margin-top:2rem;text-align:left}.m4u-footer-inner{max-width:1160px;margin:auto;display:flex;justify-content:space-between;gap:1.5rem;flex-wrap:wrap;align-items:center}.m4u-site-footer p{font-size:.82rem;color:var(--m4u-muted,#526176);max-width:38rem;margin:0}.m4u-site-footer nav{display:flex;gap:1rem;flex-wrap:wrap}.m4u-site-footer a{font-size:.85rem;color:var(--m4u-link,#1d4ed8)!important;text-underline-offset:3px}
@media(max-width:1190px){.m4u-header-inner{grid-template-columns:auto minmax(170px,1fr) auto auto;gap:.8rem}.m4u-desktop-nav{display:none}.m4u-mobile-nav{display:block}.m4u-mobile-nav>nav{position:absolute;left:1.5rem;right:1.5rem;top:calc(100% - .15rem);background:var(--m4u-surface,#fff);border:1px solid var(--m4u-border,#d7e0ec);border-radius:10px;padding:.6rem;box-shadow:0 10px 25px #091d4c30;display:grid}.m4u-mobile-nav nav>a{color:var(--m4u-text,#172337)!important;padding:.7rem;border-radius:6px;font-size:.95rem;text-decoration:none}.m4u-mobile-nav nav>a:hover{background:var(--m4u-primary-soft,#eef3ff);text-decoration:underline}.m4u-mobile-nav nav>a:focus-visible{outline-color:var(--m4u-link,#1d4ed8)}}
@media(max-width:580px){.m4u-header-inner{grid-template-columns:1fr auto auto;padding:.7rem 1rem;gap:.55rem}.m4u-header-search{grid-row:2;grid-column:1/-1}.m4u-header-search input{font-size:.91rem}.m4u-mobile-nav{grid-row:1;grid-column:2}.m4u-account{grid-row:1;grid-column:3}.m4u-brand{font-size:1.3rem}.m4u-account summary{padding:.5rem}.m4u-account-name{max-width:5.6rem;font-size:.8rem}.m4u-account summary>.m4u-icon:last-child{display:none}.m4u-mobile-nav>summary>span{display:none}.m4u-mobile-nav>nav{left:1rem;right:1rem;top:calc(100% + .2rem)}.m4u-account-panel{right:1rem;top:calc(100% + .2rem);max-height:calc(100dvh - 9rem)}.m4u-site-footer{padding:1.3rem 1rem}.m4u-footer-inner{gap:1rem}}
.m4u-icon{width:20px;height:20px;vertical-align:middle;flex-shrink:0}