/* ==========================================================================
   Layout — app shell and the two top-level screens. Structure only, no skin.
   ========================================================================== */

#main {
    height: 100dvh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* --- Workspace selector ----------------------------------------------------
   The pre-editor screen: pick or create a workspace. Centered, deliberately
   sparse — it has exactly one job.
   -------------------------------------------------------------------------- */

.workspace-selector-layout {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--dn-space-6);
    padding: var(--dn-space-6);
}

.workspace-selector-links {
    display: flex;
    gap: var(--dn-space-1);
    padding: var(--dn-space-1);
    background: var(--dn-bg-sunken);
    border: 1px solid var(--dn-border);
    border-radius: var(--dn-radius-lg);
}

.workspace-selector-view {
    width: 100%;
    max-width: 34rem;
    padding: var(--dn-space-6);
    background: var(--dn-bg-sunken);
    border: 1px solid var(--dn-border);
    border-radius: var(--dn-radius-lg);
    box-shadow: var(--dn-shadow);
}

/* --- Editor shell ----------------------------------------------------------
   Fixed-width file rail + fluid editor. Both scroll independently.
   -------------------------------------------------------------------------- */

.layout-container {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: row;
}

.files-bar {
    flex: 0 0 var(--dn-sidebar-width);
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 1px;
    padding: var(--dn-space-2);
    background: var(--dn-bg-sunken);
    border-right: 1px solid var(--dn-border);
    overflow-y: auto;
    overscroll-behavior: contain;
}

.editor-container {
    flex: 1;
    min-width: 0;
    overflow: auto;
}

.editor-class {
    height: 100%;
    cursor: text;
}

/* Below tablet the rail collapses to a strip across the shell's full width. */
@media (max-width: 640px) {
    .layout-container {
        flex-direction: column;
    }

    .files-bar {
        flex: 0 0 auto;
        max-height: 40dvh;
        border-right: 0;
        border-bottom: 1px solid var(--dn-border);
    }
}