/* Tools > Diagram — feature-scoped styles.
 *
 * Uses an explicit light palette inside #page-diagram so the tool stays
 * readable in either the app's light or dark theme. The diagram itself is
 * always rendered on white, so a light tool surface is the natural fit.
 */

#page-diagram {
    /* Internal palette — do NOT inherit from theme vars, those flip the
       text/background colors and produce white-on-white in dark mode. */
    --dg-bg:        #F8FAFC;
    --dg-surface:   #FFFFFF;
    --dg-surface-2: #F1F5F9;
    --dg-border:    #CBD5E1;
    --dg-border-2:  #E5E7EB;
    --dg-text:      #0F172A;
    --dg-text-mute: #475569;
    --dg-text-soft: #64748B;
    --dg-accent:    #7C5CB8;
    --dg-accent-2:  #6A4DA0;
}

#page-diagram .dg-page-header { margin-bottom: 16px; }
#page-diagram .page-title    { color: var(--dg-text); }
#page-diagram .breadcrumb-page,
#page-diagram .breadcrumb-item { color: var(--dg-text-mute); }
#page-diagram .breadcrumb-item.current { color: var(--dg-text); }
#page-diagram .dg-subtitle {
    color: var(--dg-text-mute);
    font-size: 13px;
    max-width: 720px;
}

#page-diagram .dg-grid {
    display: grid;
    grid-template-columns: minmax(340px, 5fr) minmax(0, 7fr);
    gap: 16px;
    align-items: stretch;
}
@media (max-width: 980px) {
    #page-diagram .dg-grid { grid-template-columns: 1fr; }
}
#page-diagram .dg-col { display: flex; flex-direction: column; min-width: 0; }

/* ── Toolbar ─────────────────────────────────────────── */
#page-diagram .dg-toolbar {
    display: flex;
    align-items: flex-end;
    gap: 12px;
    background: var(--dg-surface);
    border: 1px solid var(--dg-border-2);
    border-radius: 12px;
    padding: 10px 14px;
    margin-bottom: 14px;
    flex-wrap: wrap;
}
#page-diagram .dg-tb-group { display: flex; flex-direction: column; min-width: 160px; }
#page-diagram .dg-tb-grow  { flex: 1 1 220px; }
#page-diagram .dg-tb-group .dg-label { margin-bottom: 4px; }
#page-diagram .dg-tb-actions {
    display: flex;
    gap: 8px;
    margin-left: auto;
    align-items: center;
}
@media (max-width: 720px) {
    #page-diagram .dg-tb-actions { width: 100%; margin-left: 0; }
}

#page-diagram .dg-card {
    background: var(--dg-surface);
    border: 1px solid var(--dg-border-2);
    border-radius: 12px;
    padding: 14px 16px;
    color: var(--dg-text);
    display: flex;
    flex-direction: column;
    flex: 1 1 auto;
    min-height: 0;
}
#page-diagram .dg-card h2 {
    font-size: 14px;
    font-weight: 700;
    margin: 0 0 10px;
    color: var(--dg-text);
    letter-spacing: 0.02em;
    text-transform: uppercase;
}
#page-diagram .dg-card-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 8px;
}
#page-diagram .dg-card-head h2 { margin: 0; }
#page-diagram .dg-card-hint {
    font-size: 11px;
    color: var(--dg-text-soft);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* ── Editor card ─────────────────────────────────────── */
#page-diagram .dg-editor-card .dg-row-grow {
    flex: 1 1 auto;
    display: flex;
    margin: 0;
    min-height: 0;
}
#page-diagram .dg-editor {
    width: 100%;
    flex: 1 1 auto;
    min-height: 320px;
    resize: vertical;
}
#page-diagram .dg-editor-sm { min-height: 140px; }

/* ── Output card ─────────────────────────────────────── */
#page-diagram .dg-output-card { padding: 0; overflow: hidden; }
#page-diagram .dg-output-card .dg-tabs { margin: 0; padding: 0 12px; }
#page-diagram .dg-output-card .dg-tab-pane {
    border: none;
    border-radius: 0;
    padding: 14px 16px;
    flex: 1 1 auto;
    min-height: 360px;
}
#page-diagram .dg-output-card .dg-tab-pane-flush { padding: 12px; }

#page-diagram .dg-row { margin: 8px 0; }
#page-diagram .dg-label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--dg-text-mute);
    margin-bottom: 4px;
}
#page-diagram .dg-select,
#page-diagram .dg-row input[type="file"],
#page-diagram .dg-row textarea {
    width: 100%;
    box-sizing: border-box;
    padding: 8px 10px;
    border: 1px solid var(--dg-border);
    border-radius: 8px;
    font-family: inherit;
    font-size: 13px;
    background: var(--dg-bg);
    color: var(--dg-text);
}
#page-diagram .dg-select option {
    background: var(--dg-surface);
    color: var(--dg-text);
}
#page-diagram .dg-row textarea {
    font-family: ui-monospace, Menlo, Consolas, monospace;
    background: var(--dg-bg);
    color: var(--dg-text);
}
#page-diagram .dg-row input[type="file"]::file-selector-button {
    background: var(--dg-surface-2);
    color: var(--dg-text);
    border: 1px solid var(--dg-border);
    border-radius: 6px;
    padding: 4px 10px;
    margin-right: 8px;
    cursor: pointer;
}

#page-diagram .dg-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 10px;
}
#page-diagram .dg-btn {
    padding: 8px 14px;
    border-radius: 8px;
    border: 1px solid var(--dg-border);
    background: var(--dg-surface-2);
    color: var(--dg-text);
    font-weight: 600;
    font-size: 13px;
    cursor: pointer;
}
#page-diagram .dg-btn:hover { background: #E2E8F0; }
#page-diagram .dg-btn-primary {
    background: var(--dg-accent);
    border-color: var(--dg-accent);
    color: #FFFFFF;
}
#page-diagram .dg-btn-primary:hover { background: var(--dg-accent-2); }
#page-diagram .dg-btn-ghost {
    background: transparent;
    color: var(--dg-text-mute);
}

#page-diagram .dg-status-line {
    font-size: 13px;
    color: var(--dg-text);
}
#page-diagram .dg-status .dg-cap {
    font-size: 12px;
    color: var(--dg-text-mute);
    margin-top: 4px;
}
#page-diagram .dg-cap-warn { color: #B45309; }
#page-diagram .dg-cap-ok   { color: #166534; }
#page-diagram .dg-muted    { color: var(--dg-text-soft); }

#page-diagram .dg-history {
    list-style: none;
    margin: 0;
    padding: 0;
    max-height: 220px;
    overflow: auto;
}
#page-diagram .dg-history li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 6px 8px;
    border-bottom: 1px solid var(--dg-border-2);
    font-size: 12px;
    color: var(--dg-text);
}
#page-diagram .dg-history li:last-child { border-bottom: none; }
#page-diagram .dg-history .dg-job-meta {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
#page-diagram .dg-history .dg-job-id {
    font-family: ui-monospace, Menlo, monospace;
    color: var(--dg-text-soft);
}
#page-diagram .dg-history .dg-job-actions { display: flex; gap: 6px; }

#page-diagram .dg-preview {
    width: 100%;
    min-height: 460px;
    background: #FBFCFD;
    border: 1px dashed var(--dg-border-2);
    border-radius: 8px;
    overflow: auto;
    display: flex;
    align-items: center;
    justify-content: center;
}
#page-diagram .dg-preview svg { width: 100%; height: 100%; }
#page-diagram .dg-preview .dg-empty {
    color: var(--dg-text-soft);
    font-size: 13px;
    padding: 20px;
    text-align: center;
}

#page-diagram .dg-tabs {
    display: flex;
    gap: 4px;
    margin-top: 0;
    margin-bottom: 0;
    border-bottom: 1px solid var(--dg-border-2);
    background: var(--dg-surface-2);
}
#page-diagram .dg-tab {
    padding: 8px 12px;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--dg-text-mute);
    font-weight: 600;
    font-size: 13px;
    cursor: pointer;
}
#page-diagram .dg-tab.active {
    color: var(--dg-accent);
    border-bottom-color: var(--dg-accent);
}
#page-diagram .dg-tab-pane {
    display: none;
    padding: 12px 14px;
    border: 1px solid var(--dg-border-2);
    border-top: none;
    border-radius: 0 0 12px 12px;
    background: var(--dg-surface);
    color: var(--dg-text);
    min-height: 100px;
}
#page-diagram .dg-tab-pane.active { display: block; }

#page-diagram .dg-pre {
    margin: 0;
    padding: 8px 10px;
    font-size: 12px;
    font-family: ui-monospace, Menlo, Consolas, monospace;
    background: var(--dg-bg);
    color: var(--dg-text);
    border: 1px solid var(--dg-border-2);
    border-radius: 8px;
    max-height: 360px;
    overflow: auto;
    white-space: pre-wrap;
    word-break: break-word;
}

#page-diagram .dg-validation-section { margin: 8px 0; }
#page-diagram .dg-validation-section h3 {
    margin: 6px 0;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--dg-text-mute);
}
#page-diagram .dg-chip {
    display: inline-block;
    padding: 2px 8px;
    margin: 2px;
    border-radius: 999px;
    font-size: 11px;
    background: #F1F5F9;
    color: #0F172A;
}
#page-diagram .dg-chip-ok      { background: #DCFCE7; color: #166534; }
#page-diagram .dg-chip-missing { background: #FEE2E2; color: #991B1B; }
#page-diagram .dg-chip-rec     { background: #FEF3C7; color: #92400E; }
#page-diagram .dg-chip-warn    { background: #FEE2E2; color: #991B1B; }

#page-diagram .dg-downloads {
    list-style: none;
    margin: 0;
    padding: 0;
}
#page-diagram .dg-downloads li {
    padding: 6px 8px;
    border-bottom: 1px solid var(--dg-border-2);
    font-size: 13px;
    color: var(--dg-text);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
#page-diagram .dg-downloads a { color: var(--dg-accent); text-decoration: none; }
#page-diagram .dg-downloads a:hover { text-decoration: underline; }

/* ── Bottom strip: status + history ──────────────────── */
#page-diagram .dg-bottom { margin-top: 14px; }
#page-diagram .dg-status-bar {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    background: var(--dg-surface);
    border: 1px solid var(--dg-border-2);
    border-radius: 999px;
    padding: 6px 14px;
    font-size: 12px;
    color: var(--dg-text-mute);
}
#page-diagram .dg-status-bar .dg-status-line {
    background: var(--dg-surface-2);
    border: 1px solid var(--dg-border-2);
    border-radius: 999px;
    padding: 3px 10px;
    font-size: 12px;
    font-weight: 600;
    color: var(--dg-text);
}
#page-diagram .dg-status-bar .dg-status-line.dg-cap-warn { background: #FEF3C7; color: #92400E; border-color: #FCD34D; }
#page-diagram .dg-status-bar .dg-status-line.dg-cap-ok   { background: #DCFCE7; color: #166534; border-color: #86EFAC; }
#page-diagram .dg-status-bar .dg-cap { margin: 0; }

#page-diagram .dg-history-wrap {
    margin-top: 10px;
    background: var(--dg-surface);
    border: 1px solid var(--dg-border-2);
    border-radius: 12px;
    padding: 8px 14px;
}
#page-diagram .dg-history-summary {
    cursor: pointer;
    font-size: 13px;
    font-weight: 700;
    color: var(--dg-text);
    text-transform: uppercase;
    letter-spacing: 0.02em;
    list-style: none;
    padding: 4px 0;
}
#page-diagram .dg-history-summary::-webkit-details-marker { display: none; }
#page-diagram .dg-history-summary::before {
    content: "▸ ";
    color: var(--dg-text-mute);
}
#page-diagram .dg-history-wrap[open] .dg-history-summary::before { content: "▾ "; }
#page-diagram .dg-history-wrap .dg-history { margin-top: 6px; }