/* ── lpdf-demo web component ─────────────────────────────────────────────────
   Light-DOM Lit element. All colours that need theme support use the page's
   CSS custom properties (--bg, --border, --brand, etc.).
   The editor pane is always-dark (hardcoded palette from the code-editor).
   ─────────────────────────────────────────────────────────────────────────── */

lpdf-demo {
    display: block;
    width: 100%;
}

/* ── Outer shell (matches .code-window from styles.css) ─────────────────── */
.lpdf-shell {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 660px;
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    box-shadow:
        0 24px 48px -12px rgba(0, 0, 0, .10),
        0 8px 16px -4px rgba(0, 0, 0, .05);
}

[data-theme="dark"] .lpdf-shell {
    box-shadow:
        0 24px 48px -12px rgba(0, 0, 0, .55),
        0 8px 16px -4px rgba(0, 0, 0, .28);
}

/* ── Top toolbar ─────────────────────────────────────────────────────────── */
.lpdf-toolbar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: var(--bg-sunken);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

/* ── Toolbar wings (keeps mode cluster centred) ──────────────────── */
.lpdf-toolbar-wing {
    flex: 1;
    display: flex;
    align-items: center;
}
.lpdf-toolbar-wing:last-child {
    justify-content: flex-end;
}
.lpdf-toolbar-center {
    display: flex;
    align-items: center;
    gap: 7px;
}

.lpdf-demo-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    white-space: nowrap;
}
.lpdf-mode-cluster {
    display: flex;
    gap: 2px;
}

.lpdf-select {
    background: var(--bg-elev);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 11px;
    padding: 3px 7px;
    cursor: pointer;
    outline: none;
    width: 220px;
}

.lpdf-select:focus {
    border-color: var(--brand);
}

.lpdf-select:disabled {
    opacity: .5;
    cursor: default;
}

/* ── Status area ─────────────────────────────────────────────────────────── */
.lpdf-status {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    min-width: 0;
}

.lpdf-s-idle    { color: var(--text-subtle); }
.lpdf-s-loading { color: var(--text-muted); }
.lpdf-s-ok      { color: #4ec9b0; }
.lpdf-s-error   { color: #f44747; word-break: break-all; }

.lpdf-spinner {
    display: inline-block;
    width: 9px;
    height: 9px;
    border: 2px solid var(--border);
    border-top-color: var(--brand);
    border-radius: 50%;
    animation: lpdf-spin .65s linear infinite;
    flex-shrink: 0;
}

@keyframes lpdf-spin {
    to { transform: rotate(360deg); }
}

/* ── Render button (hidden; kept for API compat) ─────────────────── */
.lpdf-render-btn {
    padding: 4px 12px;
    font-size: 11px;
    font-weight: 600;
    background: #007acc;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background .15s;
    flex-shrink: 0;
    white-space: nowrap;
}

.lpdf-render-btn:hover:not(:disabled) { background: #005f9e; }
.lpdf-render-btn:disabled             { opacity: .45; cursor: default; }

/* ── Split panes ─────────────────────────────────────────────────────────── */
.lpdf-panes {
    display: flex;
    flex: 1;
    min-height: 0;
}

/* ── Editor pane ────────────────────────────────────────────────────────────────────────────────── */
.lpdf-editor-pane {
    display: flex;
    flex-direction: column;
    width: 50%;
    min-width: 0;
    border-right: 1px solid var(--border);
}

/* ── Editor header (mode buttons, left-aligned) ────────────────────────────
   It sits beside the toolbar of the PDF viewer, so it is as high and the same colour: those are the
   viewer's own, --toolbar-height 36px and --lpdf-header-bg, in viewer/lpdf-theme.css (the viewer follows
   the page's data-theme too). A change to either there is a change here. */
.lpdf-editor-header {
    display: flex;
    align-items: center;
    box-sizing: border-box;
    height: 36px;
    padding: 0 8px;
    background: rgb(249 249 250);
    /* The viewer draws its bottom edge as a shadow, outside its 36px (--toolbar-box-shadow), not a border inside them. */
    box-shadow: 0 1px 0 rgb(184 184 184);
    position: relative;
    z-index: 1;
    flex-shrink: 0;
}

[data-theme="dark"] .lpdf-editor-header {
    background: rgb(56 56 61);
    box-shadow: 0 1px 0 rgb(12 12 13);
}

.lpdf-mode-btn {
    padding: 3px 10px;
    font-size: 11px;
    font-weight: 500;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    background: transparent;
    color: var(--text-muted);
    font-family: inherit;
    transition: background .1s, color .1s;
    white-space: nowrap;
}

.lpdf-mode-btn:hover:not(:disabled) {
    background: transparent;
    color: var(--brand);
}

.lpdf-mode-btn[aria-pressed="true"] {
    background: transparent;
    color: var(--brand);
    font-weight: 600;
}

.lpdf-mode-btn:disabled { opacity: .4; cursor: default; }

.lpdf-pane-label {
    padding: 6px 13px;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    flex-shrink: 0;
}

.lpdf-editor-pane .lpdf-pane-label {
    background: var(--bg-sunken);
    color: var(--text-subtle);
    border-bottom: 1px solid var(--border);
}

/* ── CodeMirror editor container ──────────────────────────────────────────── */
.lpdf-cm-wrap {
    flex: 1;
    overflow: hidden;
    min-height: 0;
    text-align: left;
}

/* Let the CM editor fill the container */
.lpdf-cm-wrap .cm-editor {
    height: 100%;
}

/* Scrollable content area */
.lpdf-cm-wrap .cm-scroller {
    overflow: auto;
}

/* ── Preview pane ────────────────────────────────────────────────────────── */
.lpdf-preview-pane {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-width: 0;
}

.lpdf-preview-pane .lpdf-pane-label {
    background: var(--bg-sunken);
    color: var(--text-subtle);
    border-bottom: 1px solid var(--border);
}









/* ── Engine status indicator ───────────────────────────────────────────── */
.lpdf-engine-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    flex-shrink: 0;
}

.lpdf-dot-ok    { background: #4ec9b0; box-shadow: 0 0 5px rgba(78, 201, 176, .55); }
.lpdf-dot-error { background: #f44747; }

.lpdf-engine-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    white-space: nowrap;
}

/* ── Preview inner: the PDF viewer, in an iframe ─────────────────────────── */
.lpdf-preview-inner {
    flex: 1;
    position: relative;
    background: var(--bg-sunken);
    overflow: hidden;
}

.lpdf-viewer-frame {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: 0;
    background: transparent;
}



/* ── Empty state placeholder ─────────────────────────────────────────────── */
.lpdf-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-subtle);
    font-size: 13px;
    gap: 10px;
    pointer-events: none;
    user-select: none;
}

.lpdf-placeholder--error { color: #f44747; padding: 16px; text-align: center; background: var(--bg-sunken); }

.lpdf-placeholder-icon {
    font-size: 38px;
    opacity: .3;
    line-height: 1;
}

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 719px) {
    .lpdf-shell { height: auto; }

    .lpdf-panes { flex-direction: column; }

    .lpdf-editor-pane {
        width: 100%;
        height: 220px;
        border-right: none;
        border-bottom: 1px solid var(--border);
    }

    .lpdf-preview-pane  { height: 280px; }

    .lpdf-preview-inner { min-height: 200px; }

    .lpdf-select { max-width: none; }
}