/* ────────────────────────────────────────────────────────────────────────
 *  ai-artikel-sunburst — Pre-Paywall-Sunburst nur fuer Artikel.
 *
 *  Standalone-Variante des Sunburst, gedacht fuer eine Seite vor der Paywall,
 *  typischerweise als zweites Akkordeon neben [artikel_filter]. Eigener
 *  BEM-Namespace (.ai-artikel-sunburst__*), damit beide Sunburst-Varianten
 *  unabhaengig nebeneinander existieren koennen.
 *
 *  Das Modal-Body zeigt das HTML vom REST-Endpoint /sunburst-detail-public,
 *  welches die Klassen ai-berater-sunburst__detail* verwendet. Diese werden
 *  hier unter dem Modal-Body-Scope mitgestylt, damit artikel-sunburst.css
 *  alleine ausreicht (sunburst.css muss auf der Pre-Paywall-Seite nicht
 *  mitgeladen werden).
 *
 *  CI-Farben: Navy, Gold, Grau wie im KI-Toolsuite-Design.
 * ──────────────────────────────────────────────────────────────────────── */

.ai-artikel-sunburst {
    --ai-navy:        #196297;
    --ai-navy-dark:   #0f3f62;
    --ai-gold:        #D4A84B;
    --ai-gold-dark:   #b8902c;
    --ai-grau:        #E8EAEC;
    --ai-grau-dunkel: #b9bcc1;
    --ai-bg:          #FAFBFC;
    --ai-text:        #1a2735;
    --ai-text-muted:  #5a6878;

    font-family: 'Manrope', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 15px;
    line-height: 1.5;
    color: var(--ai-text);
    margin: 16px 0;
}

.ai-artikel-sunburst__error {
    display: none;
    background: #fee; border: 1.5px solid #c00; color: #800;
    padding: 14px; border-radius: 8px; margin: 14px 0;
    font-family: Consolas, 'Courier New', monospace; font-size: 13px;
    white-space: pre-wrap;
}
.ai-artikel-sunburst__error--show { display: block; }

.ai-artikel-sunburst__toolbar {
    display: flex; gap: 10px; flex-wrap: wrap; align-items: center;
    background: white; padding: 14px; border-radius: 10px;
    box-shadow: 0 1px 3px rgba(15,63,98,0.08);
    margin-bottom: 18px;
}
.ai-artikel-sunburst__count {
    font-size: 14px; color: var(--ai-text);
    display: inline-flex; align-items: center; gap: 6px;
}
.ai-artikel-sunburst__count strong {
    background: var(--ai-navy); color: white;
    padding: 2px 10px; border-radius: 10px;
    font-variant-numeric: tabular-nums; font-size: 13px;
}
.ai-artikel-sunburst__label {
    font-size: 13px; font-weight: 600; color: var(--ai-text-muted);
    text-transform: uppercase; letter-spacing: 0.05em; margin-right: 6px;
}
.ai-artikel-sunburst__hierarchy {
    margin-left: auto; display: inline-flex; align-items: center; gap: 8px;
}
.ai-artikel-sunburst__select {
    font-family: inherit; font-size: 14px; padding: 7px 10px;
    border: 1.5px solid var(--ai-grau); border-radius: 6px;
    background: white; color: var(--ai-text); cursor: pointer;
}
.ai-artikel-sunburst__select:hover { border-color: var(--ai-navy); }

.ai-artikel-sunburst__grid {
    display: grid; grid-template-columns: 1fr 420px; gap: 18px;
}
@media (max-width: 1100px) {
    .ai-artikel-sunburst__grid { grid-template-columns: 1fr; }
}

.ai-artikel-sunburst__chart-card,
.ai-artikel-sunburst__results {
    background: white; border-radius: 10px; padding: 16px;
    box-shadow: 0 1px 3px rgba(15,63,98,0.08);
}
.ai-artikel-sunburst__chart-card {
    position: relative;
    min-height: 720px;
}
.ai-artikel-sunburst__chart {
    width: 100%; height: 720px;
}
.ai-artikel-sunburst__loading {
    position: absolute; inset: 0;
    display: flex; align-items: center; justify-content: center;
    color: var(--ai-text-muted); font-style: italic;
    pointer-events: none;
}
.ai-artikel-sunburst__chart-card--ready .ai-artikel-sunburst__loading {
    display: none;
}

.ai-artikel-sunburst__results-header {
    display: flex; justify-content: space-between; align-items: baseline;
    border-bottom: 2px solid var(--ai-grau); padding-bottom: 10px;
    margin-bottom: 12px;
}
.ai-artikel-sunburst__results-title {
    font-size: 16px; font-weight: 700; color: var(--ai-navy); margin: 0;
}
.ai-artikel-sunburst__results-count { font-size: 13px; color: var(--ai-text-muted); }

.ai-artikel-sunburst__breadcrumb {
    font-size: 13px; color: var(--ai-text-muted);
    margin-bottom: 12px; min-height: 18px;
}
.ai-artikel-sunburst__breadcrumb-segment {
    display: inline-block; background: var(--ai-grau);
    padding: 2px 8px; border-radius: 4px; margin-right: 4px; margin-bottom: 4px;
    color: var(--ai-text);
}
.ai-artikel-sunburst__breadcrumb-segment--gold {
    background: var(--ai-gold); color: var(--ai-navy-dark); font-weight: 600;
}

.ai-artikel-sunburst__list {
    list-style: none; padding: 0; margin: 0;
    max-height: 600px; overflow-y: auto;
}
.ai-artikel-sunburst__list-item {
    padding: 10px 12px; border-radius: 6px;
    border-left: 3px solid var(--ai-navy); margin-bottom: 4px;
    transition: background 0.1s ease;
}
.ai-artikel-sunburst__list-item:hover { background: var(--ai-bg); }

.ai-artikel-sunburst__list-link {
    color: var(--ai-text); text-decoration: none; font-weight: 500;
    display: block; margin-bottom: 2px; cursor: pointer;
}
.ai-artikel-sunburst__list-link:hover { color: var(--ai-navy); text-decoration: underline; }

.ai-artikel-sunburst__list-meta { font-size: 12px; color: var(--ai-text-muted); }
.ai-artikel-sunburst__list-date {
    font-variant-numeric: tabular-nums; color: var(--ai-text);
    font-weight: 600; margin-right: 8px;
}
.ai-artikel-sunburst__list-date--missing {
    color: var(--ai-grau-dunkel); font-style: italic; font-weight: 400;
}

.ai-artikel-sunburst__placeholder {
    color: var(--ai-text-muted); font-style: italic;
    text-align: center; padding: 60px 20px;
}

/* ── Modal-Popup fuer Detail-Ansicht ────────────────────────────────── */
.ai-artikel-sunburst__modal-backdrop {
    display: none;
    position: fixed; inset: 0;
    background: rgba(15, 63, 98, 0.55);
    z-index: 10000;
    align-items: flex-start; justify-content: center;
    padding: 5vh 16px;
    overflow-y: auto;
    -webkit-backdrop-filter: blur(2px); backdrop-filter: blur(2px);
}
.ai-artikel-sunburst__modal-backdrop--open { display: flex; }

.ai-artikel-sunburst__modal {
    position: relative;
    background: white;
    width: 100%; max-width: 900px;
    max-height: 90vh;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(15, 63, 98, 0.30);
    overflow: hidden;
    display: flex; flex-direction: column;
}

.ai-artikel-sunburst__modal-body {
    padding: 28px 32px 24px;
    overflow-y: auto;
    flex: 1 1 auto;
}

/* ── X-Button gegen Theme-Overrides absichern ───────────────────────── */
.ai-artikel-sunburst .ai-artikel-sunburst__modal-close,
button.ai-artikel-sunburst__modal-close {
    position: absolute !important;
    top: 10px !important;
    right: 10px !important;
    background: var(--ai-navy) !important;
    background-image: none !important;
    border: none !important;
    border-radius: 6px !important;
    width: 36px !important;
    height: 36px !important;
    min-width: 36px !important;
    min-height: 36px !important;
    padding: 0 !important;
    margin: 0 !important;
    cursor: pointer !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    color: #ffffff !important;
    box-shadow: none !important;
    text-shadow: none !important;
    line-height: 1 !important;
    font-size: 0 !important;
    z-index: 2 !important;
    text-transform: none !important;
    letter-spacing: 0 !important;
}
.ai-artikel-sunburst .ai-artikel-sunburst__modal-close:hover,
button.ai-artikel-sunburst__modal-close:hover {
    background: var(--ai-navy-dark) !important;
    color: #ffffff !important;
}
.ai-artikel-sunburst .ai-artikel-sunburst__modal-close svg,
button.ai-artikel-sunburst__modal-close svg {
    width: 18px !important;
    height: 18px !important;
    display: block !important;
    fill: none !important;
    stroke: currentColor !important;
    stroke-width: 2 !important;
}

/* ── Detail-HTML aus dem REST-Endpoint (Modal-Body) ────────────────── */
/* Der Public-Handler liefert dasselbe HTML wie der bestehende Sunburst-Tab,
 * also mit Klassen ai-berater-sunburst__detail*. Wir scopen die Styles
 * unter den Modal-Body, damit artikel-sunburst.css standalone ausreicht. */

.ai-artikel-sunburst__modal-body .ai-berater-sunburst__detail {
    background: transparent;
    border-left: none;
    padding: 0;
    margin: 0;
}
.ai-artikel-sunburst__modal-body .ai-berater-sunburst__detail-head {
    display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
    margin-bottom: 14px;
}
.ai-artikel-sunburst__modal-body .ai-berater-sunburst__detail-title {
    font-size: 22px; font-weight: 700; color: var(--ai-navy);
    margin: 0 0 4px 0; flex: 1 1 auto;
}
.ai-artikel-sunburst__modal-body .ai-berater-sunburst__detail-date {
    font-size: 13px; color: var(--ai-text-muted);
    font-variant-numeric: tabular-nums;
}
.ai-artikel-sunburst__modal-body .ai-berater-sunburst__detail-typ {
    display: inline-block; padding: 2px 8px; border-radius: 3px;
    font-size: 11px; font-weight: 700; text-transform: uppercase;
    letter-spacing: 0.04em;
}
.ai-artikel-sunburst__modal-body .ai-berater-sunburst__detail-typ--use-case {
    background: var(--ai-gold); color: var(--ai-navy-dark);
}
.ai-artikel-sunburst__modal-body .ai-berater-sunburst__detail-typ--artikel {
    background: var(--ai-navy); color: white;
}
.ai-artikel-sunburst__modal-body .ai-berater-sunburst__detail-row { margin: 10px 0; }
.ai-artikel-sunburst__modal-body .ai-berater-sunburst__detail-label {
    font-size: 11px; font-weight: 700; color: var(--ai-text-muted);
    text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 2px;
}
.ai-artikel-sunburst__modal-body .ai-berater-sunburst__detail-value {
    font-size: 14px; color: var(--ai-text); line-height: 1.55;
}
.ai-artikel-sunburst__modal-body .ai-berater-sunburst__detail-value a {
    color: var(--ai-navy);
}
.ai-artikel-sunburst__modal-body .ai-berater-sunburst__detail-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 10px 16px; margin: 10px 0;
}
.ai-artikel-sunburst__modal-body .ai-berater-sunburst__detail-cell { min-width: 0; }