.course-nav{height:var(--nav-h);background:var(--bg-hero);-webkit-backdrop-filter:blur(20px);z-index:100;border-bottom:1px solid #ffffff0f;align-items:center;padding:0 40px;display:flex;position:fixed;top:0;left:0;right:0}.nav-logo{flex-shrink:0;align-items:center;margin-right:24px;text-decoration:none;display:flex}.nav-logo-text{font-family:var(--font-manrope),sans-serif;color:var(--orange);letter-spacing:.14em;text-transform:uppercase;font-size:1.5rem;font-weight:800}.nav-links{flex:1;align-items:center;gap:2px;margin:0;padding:0;list-style:none;display:flex}.nav-item{position:relative}.nav-btn{font-family:var(--font-manrope),sans-serif;letter-spacing:.04em;text-transform:uppercase;color:var(--bg-hero-muted);cursor:pointer;white-space:nowrap;background:0 0;border:none;border-radius:6px;align-items:center;gap:5px;padding:7px 12px;font-size:.85rem;font-weight:600;transition:color .15s,background .15s;display:flex}.nav-btn:hover{color:var(--bg-hero-text);background:#ffffff14}.nav-btn svg{fill:none;stroke:currentColor;stroke-width:2.5px;width:9px;height:9px;transition:transform .2s}.nav-item:hover .nav-btn svg{transform:rotate(180deg)}.dropdown{background:var(--bg-dropdown);border:1px solid var(--border);opacity:0;visibility:hidden;min-width:190px;box-shadow:0 16px 48px var(--shadow-heavy);border-radius:10px;padding:6px;transition:opacity .18s,transform .18s,visibility .18s;position:absolute;top:calc(100% + 6px);left:0;transform:translateY(-4px)}.nav-item:hover .dropdown{opacity:1;visibility:visible;transform:translateY(0)}.dropdown a{font-family:var(--font-manrope),sans-serif;color:var(--text-secondary);border-radius:6px;align-items:center;gap:12px;padding:10px 16px;font-size:1rem;font-weight:500;text-decoration:none;transition:color .12s,background .12s;display:flex}.dropdown a:hover{color:var(--text);background:var(--contrast-alpha-05)}.dropdown a .dot{background:var(--orange);opacity:0;border-radius:50%;flex-shrink:0;width:4px;height:4px;transition:opacity .12s}.dropdown a:hover .dot{opacity:1}.dhr{background:var(--border);height:1px;margin:4px 0}.nav-cta{background:var(--orange);color:var(--btn-primary-text);font-family:var(--font-manrope),sans-serif;letter-spacing:.08em;text-transform:uppercase;cursor:pointer;box-shadow:0 4px 16px rgba(var(--particle-base),.2);border:none;border-radius:8px;flex-shrink:0;margin-left:auto;padding:12px 28px;font-size:.95rem;font-weight:800;text-decoration:none;transition:background .15s,transform .1s}.nav-cta:hover{background:var(--orange-hover);transform:scale(1.02)}.nav-cta-desktop{display:flex}.mobile-menu-btn{cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:none;flex-direction:column;justify-content:center;gap:5px;width:36px;height:36px;margin-left:auto;padding:6px;display:none}.mobile-menu-btn span{background:var(--text);border-radius:2px;width:100%;height:2px;transition:all .2s;display:block}@media (max-width:768px){.mobile-menu-btn{display:flex}.nav-cta-desktop{display:none!important}.course-nav{height:60px;padding:0 16px}:root{--nav-h:60px}}.mobile-nav-overlay{background:var(--shadow-heavy);-webkit-backdrop-filter:blur(4px);z-index:9999;animation:.2s fadeIn;position:fixed;inset:0}.mobile-nav-panel{background:var(--card);border-left:1px solid var(--border);z-index:10000;-webkit-overflow-scrolling:touch;flex-direction:column;width:min(320px,85vw);height:100%;animation:.25s slideInRight;display:flex;position:fixed;top:0;right:0;overflow-y:auto}@keyframes slideInRight{0%{transform:translate(100%)}to{transform:translate(0)}}.mobile-nav-header{border-bottom:1px solid var(--border);flex-shrink:0;justify-content:space-between;align-items:center;padding:16px 20px;display:flex}.mobile-nav-close{color:var(--muted);cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:none;padding:4px}.mobile-nav-close:hover{color:var(--text)}.mobile-nav-links{flex:1;padding:12px 0;overflow-y:auto}.mobile-nav-group{border-bottom:1px solid var(--border)}.mobile-nav-group-btn{width:100%;color:var(--text);font-family:var(--font-manrope),sans-serif;letter-spacing:.02em;text-transform:uppercase;cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:none;justify-content:space-between;align-items:center;padding:16px 20px;font-size:1rem;font-weight:700;display:flex}.mobile-nav-group-btn svg{color:var(--muted);transition:transform .25s}.mobile-chevron-rotated{transform:rotate(180deg)}.mobile-nav-sub{flex-direction:column;gap:4px;padding:0 20px 16px;animation:.2s fadeIn;display:flex}.mobile-nav-sub-link{color:var(--text-secondary);-webkit-tap-highlight-color:transparent;border-radius:8px;align-items:center;gap:10px;padding:10px 16px;font-size:.95rem;font-weight:500;text-decoration:none;transition:all .15s;display:flex}.mobile-nav-sub-link:hover,.mobile-nav-sub-link:active{color:var(--text);background:var(--contrast-alpha-05)}.mobile-nav-dot{background:var(--orange);border-radius:50%;flex-shrink:0;width:4px;height:4px}.mobile-nav-footer{border-top:1px solid var(--border);flex-shrink:0;padding:16px 20px 24px}.mobile-nav-cta{background:var(--orange);width:100%;color:var(--btn-primary-text);font-family:var(--font-manrope),sans-serif;letter-spacing:.06em;text-transform:uppercase;cursor:pointer;box-shadow:0 4px 16px rgba(var(--particle-base),.3);-webkit-tap-highlight-color:transparent;border:none;border-radius:12px;padding:16px;font-size:1rem;font-weight:800;transition:background .15s}.mobile-nav-cta:hover{background:var(--orange-hover)}.sienna-nav{background:#1a1410!important;border-bottom:1px solid #ffffff26!important}.sienna-nav .nav-logo-text{color:#fff!important}.sienna-nav .nav-btn{color:#ffffffe6!important}.sienna-nav .nav-btn:hover{color:#f5c842!important;background:#ffffff26!important}.sienna-nav .dropdown{background:#1a1410!important;border:1px solid #ffffff26!important}.sienna-nav .dropdown a{color:#ffffffe6!important}.sienna-nav .dropdown a:hover{color:#fff!important;background:#ffffff1a!important}.sienna-nav .dhr{background:#ffffff26!important}.sienna-nav .nav-cta-desktop{color:sienna!important;background:#f5c842!important;box-shadow:0 4px 16px #f5c8424d!important}.sienna-nav .nav-cta-desktop:hover,.sienna-nav .mobile-menu-btn span{background:#fff!important}.nav-profile{margin-left:12px;position:relative}.profile-trigger{cursor:pointer;background:0 0;border:none;border-radius:50%;align-items:center;gap:10px;padding:4px;transition:transform .2s;display:flex}.profile-trigger:hover{transform:scale(1.05)}.profile-img{border:2px solid var(--orange);object-fit:cover;border-radius:50%;width:36px;height:36px}.sienna-nav .profile-img{border-color:#f5c842}.profile-dropdown{background:var(--bg-dropdown);border:1px solid var(--border);opacity:0;visibility:hidden;min-width:200px;box-shadow:0 20px 60px var(--shadow-heavy);z-index:1000;border-radius:12px;padding:12px;transition:all .2s;position:absolute;top:calc(100% + 10px);right:0;transform:translateY(-8px)}.nav-profile:hover .profile-dropdown{opacity:1;visibility:visible;transform:translateY(0)}.profile-info{border-bottom:1px solid var(--border);margin-bottom:8px;padding:4px 8px 12px}.profile-name{font-family:var(--font-manrope),sans-serif;white-space:nowrap;text-overflow:ellipsis;margin-bottom:2px;font-size:.95rem;font-weight:800;display:block;overflow:hidden;color:#1a1410!important}.profile-email{font-family:var(--font-manrope),sans-serif;white-space:nowrap;text-overflow:ellipsis;font-size:.8rem;font-weight:500;display:block;overflow:hidden;color:#5a5048!important}.logout-btn{color:#ff4d4d;width:100%;font-family:var(--font-manrope),sans-serif;cursor:pointer;text-align:left;background:0 0;border:none;border-radius:8px;align-items:center;gap:10px;padding:10px 12px;font-size:.9rem;font-weight:600;transition:background .2s;display:flex}.logout-btn:hover{background:#ff4d4d1a}.login-link{font-family:var(--font-manrope),sans-serif;color:var(--text-secondary);cursor:pointer;text-transform:uppercase;letter-spacing:.05em;border:1px solid #0000;border-radius:8px;margin-left:auto;padding:8px 16px;font-size:.85rem;font-weight:700;text-decoration:none;transition:all .2s}.login-link:hover{color:var(--text);background:#ffffff14;border-color:#ffffff1a}.sienna-nav .login-link{color:#fffc}.sienna-nav .login-link:hover{color:#fff;background:#ffffff26}.profile-dropdown .profile-info{border-bottom:1px solid var(--border);background:#00000008;flex-direction:column;padding:18px 20px;display:flex}.profile-menu{padding:8px}.profile-menu-item{border-radius:10px;align-items:center;gap:12px;padding:12px 16px;font-size:.9rem;font-weight:700;text-decoration:none;transition:all .2s;display:flex;color:#5a5048!important}.profile-menu-item:hover{color:var(--text);background:#0000000a}.profile-dropdown .logout-btn{align-items:center;gap:12px;margin-bottom:12px;display:flex}.mobile-user-info{border:1px solid var(--border);background:#ffffff0d;border-radius:12px;margin-bottom:20px;padding:15px}.mobile-user-details{align-items:center;gap:12px;margin-bottom:12px;display:flex}.mobile-user-text{flex-direction:column;display:flex;overflow:hidden}.mobile-logout-btn{color:#ff4d4d;width:100%;font-family:var(--font-manrope),sans-serif;cursor:pointer;background:#ff4d4d1a;border:1px solid #ff4d4d33;border-radius:8px;padding:10px;font-size:.9rem;font-weight:700}.mobile-login-btn{color:#000;width:100%;font-family:var(--font-manrope),sans-serif;cursor:pointer;background:#fff;border:1px solid #ddd;border-radius:12px;justify-content:center;align-items:center;gap:10px;margin-bottom:12px;padding:14px;font-size:1rem;font-weight:800;display:flex}