.admin-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-dark);
    color: white;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.sidebar-header {
    height: var(--topbar-height);
    display: flex;
    align-items: center;
    padding: 0 20px;
    border-bottom: 1px solid #374151;
}

.sidebar-nav {
    flex: 1;
    padding: 20px 0;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: #D1D5DB;
    transition: all 0.2s;
}

.nav-link:hover, .nav-link.active {
    background-color: #374151;
    color: white;
}

.nav-divider {
    height: 1px;
    background-color: #374151;
    margin: 12px 20px;
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid #374151;
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

.topbar {
    height: var(--topbar-height);
    background: var(--bg-white);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
}

.content-wrapper {
    flex: 1;
    padding: 24px;
    overflow-y: auto;
}

/* User Profile */
.user-profile {
    display: flex;
    align-items: center;
    gap: 12px;
}

.avatar {
    width: 32px;
    height: 32px;
    background-color: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}
/* Mobile Overlay */
.mobile-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 900;
    opacity: 0;
    transition: opacity 0.3s;
}

.mobile-overlay.active {
    display: block;
    opacity: 1;
}

/* RWD Utilities */
.mobile-only {
    display: none;
}

@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        z-index: 1000;
        transform: translateX(-100%);
        transition: transform 0.3s ease-in-out;
        box-shadow: 2px 0 8px rgba(0,0,0,0.1);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .mobile-only {
        display: block;
    }

    .desktop-only {
        display: none;
    }

    .topbar {
        padding: 0 16px;
    }

    .content-wrapper {
        padding: 16px;
    }
}