.hub-container {
    display: flex;
    width: 100vw;
    height: 100vh;
    background: #121212;
    color: #e0e0e0;
    overflow: hidden;
}

::deep .hub-sidebar {
    width: 260px;
    height: 100%;
    background: #161616;
    border-right: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    flex-direction: column;
    z-index: 100;
    flex-shrink: 0;
}

::deep .sidebar-header {
    padding: 2.5rem 1.5rem;
}

::deep .logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

::deep .logo-icon {
    color: var(--nexus-neon);
    filter: drop-shadow(0 0 10px rgba(0, 255, 153, 0.4));
}

::deep .logo-text {
    font-family: var(--nexus-font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: #ffffff;
    letter-spacing: -0.01em;
}

::deep .sidebar-nav {
    flex: 1;
    padding: 0;
    display: flex;
    flex-direction: column;
}

::deep .nav-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    color: #A0A0A0;
    text-decoration: none;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
    font-family: var(--nexus-font-sans);
    font-size: 0.9rem;
    font-weight: 500;
}

::deep .nav-item:hover {
    background: rgba(255, 255, 255, 0.02);
    color: #ffffff;
}

::deep .nav-item.active {
    color: #ffffff;
    background: rgba(0, 255, 153, 0.03);
    border-left: 3px solid var(--nexus-neon);
}

::deep .nav-item.active .nav-icon {
    color: var(--nexus-neon);
}

::deep .nav-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    opacity: 0.7;
    transition: opacity 0.2s;
}

::deep .nav-item:hover .nav-icon,
::deep .nav-item.active .nav-icon {
    opacity: 1;
}

::deep .sidebar-footer {
    padding: 1.25rem 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

::deep .user-brief {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    overflow: hidden;
}

::deep .user-avatar {
    width: 32px;
    height: 32px;
    background: #222;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 600;
    color: #A0A0A0;
    flex-shrink: 0;
}

::deep .user-details {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

::deep .user-name {
    font-size: 0.85rem;
    font-weight: 500;
    color: #A0A0A0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

::deep .logout-btn {
    background: transparent;
    border: none;
    color: #666;
    cursor: pointer;
    padding: 0.4rem;
    border-radius: 6px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

::deep .logout-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #ffffff;
}

.hub-main {
    flex: 1;
    height: 100%;
    overflow-y: auto;
    background: radial-gradient(circle at center, #1a1a1a 0%, #121212 100%);
}

.hub-content {
    padding: 2.5rem;
    min-height: 100%;
}

::deep .hub-loading {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
}

::deep .nexus-loader {
    width: 32px;
    height: 32px;
    border: 2px solid rgba(0, 255, 153, 0.1);
    border-top-color: var(--nexus-neon);
    border-radius: 50%;
    animation: spin 0.8s cubic-bezier(0.4, 0, 0.2, 1) infinite;
    filter: drop-shadow(0 0 5px var(--nexus-neon));
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Mobile Styles */
.nexus-mobile-topbar {
    display: none;
}

@media (max-width: 768px) {
    .nexus-mobile-topbar {
        display: flex;
        align-items: center;
        justify-content: space-between;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        height: 60px;
        background: rgba(18, 18, 18, 0.85);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        padding: 0 1.25rem;
        z-index: 150;
    }

    .hamburger-btn {
        background: transparent;
        border: none;
        color: #e0e0e0;
        cursor: pointer;
        padding: 0.5rem;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 8px;
        transition: background-color 0.2s;
        min-height: 48px;
        min-width: 48px;
        touch-action: manipulation;
    }

    .hamburger-btn:hover {
        background: rgba(255, 255, 255, 0.05);
    }

    .mobile-logo {
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }

    .pulsing-logo {
        animation: pulse-glow 2s infinite ease-in-out;
    }

    @keyframes pulse-glow {
        0%, 100% {
            filter: drop-shadow(0 0 5px rgba(0, 255, 153, 0.4));
            opacity: 0.8;
        }
        50% {
            filter: drop-shadow(0 0 12px rgba(0, 255, 153, 0.8));
            opacity: 1;
        }
    }

    .mobile-user-pill {
        display: flex;
        align-items: center;
    }

    .user-avatar-mini {
        width: 32px;
        height: 32px;
        background: linear-gradient(135deg, var(--nexus-neon) 0%, #0099ff 100%);
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 0.85rem;
        font-weight: 700;
        color: #121212;
        box-shadow: 0 0 10px rgba(0, 255, 153, 0.2);
    }

    .mobile-sidebar-backdrop {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.6);
        backdrop-filter: blur(4px);
        -webkit-backdrop-filter: blur(4px);
        z-index: 190;
        animation: fade-in 0.2s ease-out;
    }

    @keyframes fade-in {
        from { opacity: 0; }
        to { opacity: 1; }
    }

    ::deep .hub-sidebar {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: 280px;
        height: 100%;
        background: #141414;
        z-index: 200;
        transform: translateX(-100%);
        will-change: transform;
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: none;
    }

    .mobile-menu-open ::deep .hub-sidebar {
        transform: translateX(0);
        box-shadow: 10px 0 30px rgba(0, 0, 0, 0.5);
    }

    .hub-container {
        flex-direction: column;
    }

    .hub-main {
        margin-top: 60px;
        width: 100%;
        height: calc(100vh - 60px);
    }

    .hub-content {
        padding: 1.25rem;
    }

    ::deep .sidebar-header {
        padding: 1.5rem 1.25rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    ::deep .sidebar-nav {
        padding: 1rem 0;
    }

    ::deep .nav-item {
        padding: 0.9rem 1.25rem;
        font-size: 0.95rem;
        min-height: 48px; /* Touch target */
    }

    ::deep .sidebar-footer {
        padding: 1rem 1.25rem;
    }
}