html, body {
    height: 100%;
    margin: 0;
}

/* layout css starts */

.app-drawer {
    height: 100vh !important;
}

.main-container {
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.footer {
    display: flex;
    flex-shrink: 0;
    padding: 0px !important;
    margin: 12px 12px 12px 12px;
    flex-wrap: nowrap;
}

/* layout css ends */

/* view css starts */

.content-wrapper {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 48px); /* space for footer */
    margin: 0 12px;
    min-height: 0; /* allow children to shrink */
}

.top-panel {
    flex-shrink: 0;
    box-sizing: border-box;
    margin: 12px 0px 0px 0px;
    padding: 0px 12px;
}

.paneled .top-panel {
    margin: 0 0 12px 0;
    padding: 12px;
}

.page-content {
    flex: 1; /* fills remaining height under top panel */
    display: flex;
    flex-direction: column;
    min-height: 0; /* critical: allow children to scroll */
    overflow: hidden; /* so inner scroll works instead of expanding container */
}

.layout-vertical {
    display: flex;
    flex-direction: column;
    flex: 1; /* fill remaining space inside page-content */
    min-height: 0; /* critical for scroll to work */
}

.layout-horizontal {
    display: flex;
    flex: 1; /* fills page-content vertically */
    min-height: 0; /* important for internal scrolls */
    overflow: hidden; /* lets inner columns scroll */
}

.splitter-column {
    display: flex;
    overflow: hidden;
    min-width: 150px;
    min-height: 0;
}

.paneled .splitter-column {
    margin: 0px 3px;
}

    .paneled .splitter-column:last-child {
        margin-right: 0px;
    }

    .paneled .splitter-column:first-child {
        margin-left: 0px;
    }

.content-paper {
    flex: 1; /* take all remaining space inside layout-vertical */
    overflow: auto; /* scroll if content overflows */
    box-sizing: border-box;
    margin: 6px 0px 12px 0px;
    padding: 0px 12px;
}

.multi-columns .content-paper {
    padding: 0px 20px;
}

.content-paper.full-width {
    margin: 0;
    padding: 12px 0px;
}

.paneled .content-paper {
    margin: 0;
    padding: 12px;
}



.splitter {
    background-image: linear-gradient( to right, transparent calc(50% - 2px), #eee calc(50% - 2px), #eee calc(50% + 2px), transparent calc(50% + 2px) );
    width: 6px;
    cursor: col-resize;
    user-select: none;
    margin: 6px 0 6px 0;
    height: auto;
    align-self: stretch; /* 👈 critical */
}

    .splitter:not(.splitter-active):hover {
        background-image: linear-gradient( to right, transparent calc(50% - 2px), #ddd calc(50% - 2px), #ddd calc(50% + 2px), transparent calc(50% + 2px) );
    }

.splitter-active {
    background-image: linear-gradient( to right, transparent calc(50% - 2px), #ff9900 calc(50% - 2px), #ff9900 calc(50% + 2px), transparent calc(50% + 2px) );
}

/* view css ends */