/* Mengunci layar utama agar hanya area tengah yang scroll */
body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    overflow: hidden !important;
    background-color: #f4f7f6;
}

/* Header Tetap di Atas */
.header-container {
    position: fixed;
    top: 0;
    left: 250px;
    right: 0;
    height: 60px;
    z-index: 1030;
    background: #1a1a1a;
}

/* Sidebar Tetap di Kiri */
.sidebar-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 250px;
    height: 100vh;
    z-index: 1020;
    background: white;
    border-right: 1px solid #dee2e6;
    overflow-y: auto;
}

/* Area Konten Tengah yang Bisa Scroll */
.main-content {
    margin-top: 60px;
    margin-left: 250px;
    padding: 20px;
    height: calc(100vh - 60px) !important; /* Ubah jadi 60px */
    overflow-y: scroll !important;         /* Tetap scroll */
    background-color: #f4f7f6;
    width: calc(100% - 250px);
}

/* Footer Tetap di Bawah */
.footer-wrapper {
    position: fixed;
    bottom: 0;
    left: 250px;
    right: 0;
    height: 60px;
    background: #fff;
    border-top: 1px solid #dee2e6;
    z-index: 1010;
    padding: 10px 20px;
}