.header{position:fixed;top:0;left:0;width:100%;height:80px;background:#762216;display:flex;align-items:center;z-index:1000;transition:all .4s cubic-bezier(.4,0,.2,1);box-shadow:0 2px 15px rgba(0,0,0,.1)}.header.sticky{height:70px;background:#762216;box-shadow:0 4px 20px rgba(0,0,0,.15)}.header.hide{transform:translateY(-100%)}.header-container{width:100%;max-width:1440px;margin:0 auto;padding:0 40px;display:flex;align-items:center;justify-content:space-between}.header-left{flex:0 0 auto}.brand-link{display:flex;align-items:center;gap:15px;text-decoration:none}.logo-container{position:relative;width:65px;height:65px}.logo-container-text{height:42px}.logo-text{height:100%;object-fit:contain}.logo-text,.sticky .logo-text{filter:brightness(0) invert(1)}.header-nav{display:flex;align-items:center;gap:35px}.nav-link{text-decoration:none;font-weight:500;font-size:.9rem;letter-spacing:.02em;transition:all .3s ease;position:relative}.header:not(.sticky) .nav-link,.nav-link{color:#ffffff}.nav-link:hover{color:#ffa64d}.dropbtn{background:none;border:none;color:#ffffff;font-weight:500;font-size:.9rem;display:flex;align-items:center;gap:8px;cursor:pointer;padding:0;transition:all .3s ease}.dropdown-icon{font-size:.7rem;transition:transform .3s ease;color:#ffffff}.dropdown-icon.open{transform:rotate(180deg)}.mega-menu{position:relative}.mega-menu-panel{position:absolute;top:calc(100% + 25px);left:50%;transform:translateX(-50%);width:600px;background:white;border-radius:20px;padding:30px;box-shadow:0 15px 50px rgba(0,0,0,.12);display:grid;z-index:1001;border:1px solid rgba(0,0,0,.05)}.mega-menu-panel:before{content:"";position:absolute;top:-25px;left:0;right:0;height:25px;background:transparent}.mega-menu-grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:30px;gap:30px}.mega-menu-label{display:block;font-size:.75rem;font-weight:800;color:#762216;text-transform:uppercase;letter-spacing:.1em;margin-bottom:20px}.mega-menu-links{gap:15px}.mega-menu-link,.mega-menu-links{display:flex;flex-direction:column}.mega-menu-link{gap:4px;text-decoration:none;padding:10px;border-radius:12px;transition:background .3s ease}.mega-menu-link:hover{background:#fff8f2}.mega-menu-link strong{color:#3d1410;font-size:.95rem}.mega-menu-link span{color:#665c55;font-size:.8rem}.dropdown{position:relative}.dropdown-content{position:absolute;top:calc(100% + 20px);left:0;background:white;min-width:200px;border-radius:15px;padding:15px;box-shadow:0 10px 30px rgba(0,0,0,.1);display:none;flex-direction:column;gap:10px;border:1px solid rgba(0,0,0,.05)}.dropdown-content:before{content:"";position:absolute;top:-20px;left:0;right:0;height:20px;background:transparent}.dropdown:hover .dropdown-content{display:flex}.dropdown-content .nav-link{color:#3d1410!important;padding:8px 12px;border-radius:8px}.dropdown-content .nav-link:hover{background:#fff8f2;color:#762216!important}.header-hamburger{display:none}.hamburger-trigger,.header-hamburger-container{display:flex;align-items:center}.hamburger-trigger{background:none;border:none;color:#ffffff;cursor:pointer;padding:8px;justify-content:center;transition:transform .3s ease}.hamburger-overlay{position:fixed;inset:0;background:rgba(0,0,0,.4);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:2000;opacity:0;visibility:hidden;transition:all .4s ease}.hamburger-overlay.show{opacity:1;visibility:visible}.hamburger-sidebar{position:fixed;top:0;right:-100%;width:85%;max-width:350px;height:100vh;background:#762216;z-index:2001;box-shadow:-10px 0 30px rgba(0,0,0,.3);transition:all .5s cubic-bezier(.4,0,.2,1);display:flex;flex-direction:column}.hamburger-sidebar.open{right:0}.sidebar-header{padding:20px;border-bottom:1px solid rgba(255,255,255,.1);justify-content:space-between}.sidebar-brand,.sidebar-header{display:flex;align-items:center}.sidebar-brand{gap:12px}.sidebar-logo-icon{width:45px;height:45px;display:flex}.sidebar-logo-icon img{width:100%;height:100%;object-fit:contain}.sidebar-logo-text{height:28px}.sidebar-logo-text img{height:100%;object-fit:contain;filter:brightness(0) invert(1)}.close-sidebar{color:#ffffff!important}.sidebar-scrollable{flex:1 1;overflow-y:auto;padding:20px}.sidebar-nav,.sidebar-scrollable{display:flex;flex-direction:column}.sidebar-nav{gap:5px}.sidebar-link{padding:12px 10px;color:#ffffff;text-decoration:none;font-weight:500;font-size:1rem;border-bottom:1px solid rgba(255,255,255,.05);transition:background .3s ease}.sidebar-link:hover{background:rgba(255,255,255,.05);color:#ffa64d}.sidebar-group{border-bottom:1px solid rgba(255,255,255,.05)}.sidebar-group-btn{width:100%;padding:12px 10px;display:flex;align-items:center;justify-content:space-between;background:none;border:none;font-weight:500;font-size:1rem;color:#ffffff;cursor:pointer;text-align:left}.sidebar-group-btn.active{color:#ffa64d}.chevron{font-size:.75rem;transition:transform .3s ease}.chevron.rotated{transform:rotate(180deg)}.sidebar-submenu{max-height:0;overflow:hidden;transition:max-height .4s ease;background:rgba(0,0,0,.1);padding:0 10px}.sidebar-submenu.show{max-height:400px;padding:8px}.submenu-link{display:flex;flex-direction:column;gap:2px;padding:10px;color:#ffffff;text-decoration:none;border-left:2px solid rgba(255,255,255,.1);margin-bottom:5px}.submenu-link:hover{border-left-color:#ffa64d;background:rgba(255,255,255,.05)}.submenu-link strong{font-size:.9rem;color:#ffffff}.submenu-link span{font-size:.75rem;color:rgba(255,255,255,.7)}.sidebar-footer{margin-top:auto;padding:20px 10px;text-align:center;border-top:1px solid rgba(255,255,255,.1);color:#ffffff}.chapter-badge{display:inline-block;padding:4px 12px;background:#762216;color:white;border-radius:99px;font-size:.75rem;font-weight:700;text-transform:uppercase;margin-bottom:8px}@media (max-width:1100px){.header-nav{display:none}.header-hamburger{display:block}.header-container{padding:0 20px}}