:root {
    --sidebar-width: 260px;
    --primary-red: #d32f2f;
    --light-bg: #fdf8f8;
}

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

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: white;
    border-right: 1px solid #eee;
    transition: all 0.3s;
    position: sticky;
    top: 0;
    height: 100vh;
}

/* Main Container */
.main-container {
    flex: 1;
    background-color: var(--light-bg);
    display: flex;
    flex-direction: column;
}

/* Topbar sesuai gambar */
.topbar {
    height: 70px;
    background: white;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 25px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}

/* Responsive: Mobile Mode */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: -100%; /* Sembunyi ke kiri */
        z-index: 1000;
    }
    .sidebar.active {
        left: 0;
    }
    .admin-wrapper {
        display: block; /* Stack vertical */
    }
}