/* ============================================================
   SERVICES.CSS — Unterseiten-spezifische Stile
   Lipasan Tabs · NormProof Säulen · Referenzen-Grid
   ============================================================ */

/* ============================================================
   LIPASAN — ZIELGRUPPEN-SWITCHER
   ============================================================ */

.audience-tabs {
  margin: 48px 0;
}

.tab-nav {
  display: flex;
  border-bottom: 1px solid var(--border);
  gap: 0;
  margin-bottom: 0;
}

.tab-btn {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  padding: 12px 24px;
  font-family: var(--font-main);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}

.tab-btn:hover {
  color: var(--text-secondary);
}

.tab-btn.is-active {
  color: var(--teal);
  border-bottom-color: var(--teal);
}

.tab-panel {
  display: none;
  padding: 40px 0;
}

.tab-panel.is-active {
  display: block;
}

.tab-content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.tab-usps {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.tab-usps li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
}

.tab-usps li::before {
  content: '';
  display: block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--teal);
  margin-top: 8px;
  flex-shrink: 0;
}

.tab-cta {
  margin-top: 28px;
}

.partner-note {
  margin-top: 48px;
  padding: 20px 24px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  font-size: 13px;
  color: var(--text-muted);
  border-left: 2px solid var(--teal-dim);
}

/* ============================================================
   NORMPROOF — DREI SÄULEN
   ============================================================ */

.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  margin: 48px 0;
}

.pillar {
  background: var(--bg-card);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pillar-num {
  font-size: 40px;
  font-weight: 300;
  color: var(--border-accent);
  letter-spacing: -0.03em;
  line-height: 1;
}

.pillar h3 {
  font-size: 18px;
  font-weight: 400;
}

.pillar p {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0;
  flex: 1;
}

/* ============================================================
   REFERENZEN — GRID
   ============================================================ */

.references-filter {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.filter-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-family: var(--font-main);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 7px 16px;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.filter-btn:hover,
.filter-btn.is-active {
  color: var(--text-primary);
  border-color: var(--orange-dim);
  background: rgba(232, 118, 42, 0.06);
}

.references-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
}

.reference-card {
  background: var(--bg-card);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: background 0.2s;
}

.reference-card:hover {
  background: var(--bg-elevated);
}

.reference-logo-wrap {
  height: 48px;
  display: flex;
  align-items: center;
}

.reference-logo-wrap img {
  max-height: 36px;
  max-width: 140px;
  filter: grayscale(1) opacity(0.5);
  transition: filter 0.2s;
}

.reference-card:hover .reference-logo-wrap img {
  filter: grayscale(0.3) opacity(0.8);
}

.reference-logo-placeholder {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

.reference-category {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--orange-dim);
}

.reference-desc {
  font-size: 13px;
  color: var(--text-secondary);
  margin: 0;
}

/* ============================================================
   BLOG — LISTE
   ============================================================ */

.blog-list {
  display: flex;
  flex-direction: column;
}

.blog-post-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0 24px;
  align-items: start;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  transition: background 0.2s;
}

.blog-post-item:hover {
  background: none;
}

.blog-post-item:hover .blog-post-title {
  color: var(--orange);
}

.blog-post-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
  min-width: 100px;
}

.blog-post-date {
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
}

.blog-post-cat {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange-dim);
  border: 1px solid var(--border-accent);
  padding: 2px 7px;
}

.blog-post-title {
  font-size: 18px;
  font-weight: 300;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  line-height: 1.3;
  transition: color 0.2s;
  margin-bottom: 6px;
}

.blog-post-teaser {
  font-size: 13px;
  color: var(--text-muted);
  margin: 0;
}

/* ============================================================
   KI-INDEX
   ============================================================ */

.ki-index-content {
  max-width: 800px;
}

.ki-index-machine-note {
  font-size: 13px;
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 16px 20px;
  margin-bottom: 48px;
  border-left: 2px solid var(--orange-dim);
}

.ki-section {
  margin-bottom: 48px;
}

.ki-section h2 {
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.ki-section h3 {
  margin: 24px 0 10px;
  font-size: 16px;
  color: var(--text-secondary);
}

.ki-section ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.ki-section ul li {
  font-size: 14px;
  color: var(--text-secondary);
  padding-left: 16px;
  position: relative;
}

.ki-section ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--text-muted);
}

.ki-faq {
  margin-top: 48px;
}

.ki-faq details {
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}

.ki-faq summary {
  font-size: 15px;
  font-weight: 400;
  color: var(--text-primary);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.ki-faq summary::-webkit-details-marker { display: none; }

.ki-faq summary::after {
  content: '+';
  color: var(--text-muted);
  font-size: 18px;
  font-weight: 300;
  transition: transform 0.2s;
}

.ki-faq details[open] summary::after {
  transform: rotate(45deg);
}

.ki-faq details p {
  margin: 12px 0 0;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 900px) {
  .tab-content-grid { grid-template-columns: 1fr; }
  .pillars          { grid-template-columns: 1fr; }
  .references-grid  { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .references-grid  { grid-template-columns: 1fr; }
  .tab-nav          { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .blog-post-item   { grid-template-columns: 1fr; }
  .blog-post-meta   { flex-direction: row; align-items: center; }
}