/* M2D2 Tutorial Playground
   Layout: toolbar on top, editor (left) + preview (right) below.
   The #example <section> is the mount point (its template is removed by pages.js
   so the playground owns its contents). */

#example .pg-root {
    display: grid;
    grid-template-rows: auto 1fr;
    grid-template-areas: "toolbar toolbar" "editors preview";
    grid-template-columns: 55% 45%;
    height: 100%;
    min-height: 500px;
}

#example .pg-toolbar {
    grid-area: toolbar;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px;
    background: #1c2128;
    border-bottom: 1px solid #414a52;
}

#example .pg-toolbar button,
#example .pg-toolbar label {
    background: #2a303b;
    color: #eee;
    border: 1px solid #414a52;
    padding: 6px 12px;
    cursor: pointer;
    font-size: 13px;
    line-height: 1.4;
    border-radius: 3px;
}

#example .pg-toolbar button:hover {
    background: #3a404b;
}

#example .pg-toolbar .pg-spacer {
    flex: 1;
}

#example .pg-toolbar .pg-theme-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: #999;
}

#example .pg-toolbar select {
    background: #2a303b;
    color: #eee;
    border: 1px solid #414a52;
    padding: 6px;
    border-radius: 3px;
    font-size: 13px;
}

#example .pg-editors {
    grid-area: editors;
    display: grid;
    grid-template-rows: auto 1fr;
    grid-template-areas: "tabs" "editor";
    background: #1e1e1e;
    border: 1px solid #414a52;
    overflow: hidden;
}

#example .pg-tabs {
    grid-area: tabs;
    display: flex;
    background: #181d26;
    border-bottom: 1px solid #414a52;
}

#example .pg-tabs button {
    background: transparent;
    color: #999;
    border: none;
    border-bottom: 2px solid transparent;
    padding: 8px 16px;
    cursor: pointer;
    font-size: 13px;
}

#example .pg-tabs button.pg-active {
    color: #eee;
    border-bottom-color: #5a1e34;
}

#example .pg-editor-host {
    grid-area: editor;
    overflow: auto;
}

#example .pg-editor-host .cm-editor {
    height: 100%;
}

#example .pg-editor-host .cm-scroller {
    font-family: "SF Mono", Menlo, Consolas, monospace;
    font-size: 13px;
}

#example .pg-preview-wrap {
    grid-area: preview;
    display: grid;
    grid-template-rows: 1fr auto;
    grid-template-areas: "frame" "error";
    background: #fff;
    border: 1px solid #414a52;
    overflow: hidden;
}

#example .pg-preview-wrap iframe {
    grid-area: frame;
    width: 100%;
    height: 100%;
    border: none;
    background: #fff;
}

#example .pg-errorbar {
    grid-area: error;
    background: #2a1517;
    color: #ff8080;
    border-top: 1px solid #5a1e34;
    padding: 8px;
    font-family: "SF Mono", Menlo, Consolas, monospace;
    font-size: 12px;
    white-space: pre-wrap;
    max-height: 120px;
    overflow: auto;
    display: none;
}

#example .pg-errorbar.pg-visible {
    display: block;
}

/* Responsive: stack editors above preview on narrow screens. */
@media (max-width: 760px) {
    #example .pg-root {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto;
        grid-template-areas: "toolbar" "editors" "preview";
    }
    #example .pg-editors,
    #example .pg-preview-wrap {
        min-height: 300px;
    }
}