/* ============================================================
   Tom Van den Bossche — auteur-site shared styles
   Aanvulling op styles.css voor boek-detailpagina's en richer landing
   ============================================================ */

/* Page background nuance */
body.auteur-body { background: var(--bg); }

/* Simple nav (zonder dropdowns) */
.simple-nav {
  background: rgba(247, 244, 238, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.simple-nav .nav-inner { padding: 16px 24px; }
.simple-nav .nav-links { gap: 28px; }
.simple-nav .nav-links a {
  color: var(--ink-soft);
  font-size: 0.92rem;
  padding: 6px 0;
}
.simple-nav .nav-links a:hover { color: var(--ink); }
.simple-nav .nav-links a.active { color: var(--ink); font-weight: 500; }

/* ============================================================
   BOOK DETAIL PAGE
   ============================================================ */
.book-hero {
  padding: 40px 0 56px;
  border-bottom: 1px solid var(--line);
}
.book-hero-grid {
  max-width: 1080px; margin: 0 auto;
  display: grid; grid-template-columns: 320px 1fr;
  gap: 56px;
  padding: 0 24px;
  align-items: start;
}

/* Big cover */
.book-cover-big {
  width: 320px; height: 440px;
  background: linear-gradient(135deg, var(--primary), var(--bg-deep));
  border-radius: 4px;
  box-shadow: 6px 12px 32px rgba(0,0,0,0.18);
  color: #fff;
  padding: 36px 28px;
  display: flex; flex-direction: column;
  position: relative;
}
.book-cover-big.cover-amber {
  background: linear-gradient(135deg, #b06829, #6a3e18);
}
.book-cover-big::after {
  content: "";
  position: absolute;
  top: 0; left: 8px; bottom: 0;
  width: 1px;
  background: rgba(255,255,255,0.12);
}
.book-cover-big .cover-eyebrow {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-soft);
  font-weight: 600;
}
.book-cover-big .cover-num {
  font-family: var(--font-display);
  font-size: 6rem;
  color: var(--accent);
  line-height: 0.9;
  margin: 8px 0 12px;
}
.book-cover-big.cover-amber .cover-num { color: #f5e4d0; }
.book-cover-big .cover-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.5rem;
  line-height: 1.2;
}
.book-cover-big .cover-subtitle {
  color: rgba(255,255,255,0.7);
  font-size: 0.92rem;
  margin-top: 14px;
  line-height: 1.45;
}
.book-cover-big .cover-author {
  margin-top: auto;
  border-top: 1px solid rgba(255,255,255,0.16);
  padding-top: 16px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.7);
}
.book-cover-big .cover-author strong { color: #fff; display: block; font-weight: 500; }

/* Right info block */
.book-info h1 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  line-height: 1.15;
}
.book-info .subtitle {
  color: var(--ink-soft);
  font-size: 1.1rem;
  margin-top: 10px;
  max-width: 50ch;
}
.book-meta-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 14px 32px;
  margin-top: 24px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.book-meta-grid .meta-cell { display: flex; flex-direction: column; }
.book-meta-grid .meta-cell .lbl {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
  font-weight: 600;
}
.book-meta-grid .meta-cell .val {
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--ink);
  margin-top: 2px;
}
.book-price-row {
  margin-top: 20px;
  display: flex; gap: 20px; align-items: center; flex-wrap: wrap;
}
.book-price {
  font-family: var(--font-display);
  font-size: 2.4rem;
  color: var(--ink);
  line-height: 1;
}
.book-price small {
  display: block;
  font-family: var(--font-body);
  font-size: 0.82rem;
  color: var(--ink-muted);
  margin-top: 4px;
  font-weight: 400;
}
.bureau-strip {
  background: var(--bg);
  border: 1px dashed var(--line-strong);
  border-radius: var(--r-md);
  padding: 18px 22px;
  font-size: 0.92rem;
  color: var(--ink-soft);
  margin-top: 24px;
}
.bureau-strip strong { color: var(--ink); }

/* Sections */
.book-section {
  padding: 56px 0;
  border-bottom: 1px solid var(--line);
}
.book-section:last-of-type { border-bottom: 0; }
.book-section .container {
  max-width: 920px;
  padding: 0 24px;
}
.book-section h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.6rem;
  margin-bottom: 14px;
}
.book-section p {
  color: var(--ink-soft);
  line-height: 1.65;
  margin-bottom: 14px;
  max-width: 70ch;
}
.book-section p strong { color: var(--ink); font-weight: 600; }

/* TOC */
.toc-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 4px 32px;
  margin-top: 20px;
}
.toc-part { margin-top: 24px; }
.toc-part h3 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 10px;
}
.toc-list {
  list-style: none; padding: 0; margin: 0;
  border-top: 1px solid var(--line);
}
.toc-list li {
  display: flex; justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.92rem;
  color: var(--ink);
  gap: 12px;
}
.toc-list .ch-num {
  color: var(--ink-muted);
  font-family: var(--font-display);
  width: 28px; flex-shrink: 0;
}
.toc-list .ch-title { flex: 1; }
.toc-list .ch-pages { color: var(--ink-muted); font-size: 0.82rem; flex-shrink: 0; }

/* Wat je krijgt */
.package-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 20px;
}
.pkg-card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 22px 24px;
}
.pkg-card .ico {
  width: 36px; height: 36px;
  border-radius: 8px;
  background: var(--accent-soft);
  color: var(--accent-2);
  display: grid; place-items: center;
  font-weight: 700;
  margin-bottom: 12px;
}
.pkg-card h4 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.05rem;
  margin-bottom: 6px;
}
.pkg-card p { font-size: 0.9rem; color: var(--ink-soft); line-height: 1.5; margin: 0; }

/* Preview card */
.preview-card {
  background: var(--bg-elev);
  border: 1px dashed var(--accent);
  border-radius: var(--r-lg);
  padding: 28px;
  display: flex; gap: 24px; align-items: center;
  margin-top: 20px;
}
.preview-card .sample-cover {
  width: 64px; height: 88px;
  background: linear-gradient(135deg, var(--primary), var(--bg-deep));
  border-radius: 3px;
  color: var(--accent-soft);
  font-family: var(--font-display);
  font-size: 0.6rem;
  display: grid; place-items: center;
  text-align: center;
  line-height: 1.2;
  flex-shrink: 0;
}
.preview-card .preview-text { flex: 1; }
.preview-card h4 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.1rem;
}
.preview-card p { color: var(--ink-soft); font-size: 0.9rem; margin: 4px 0 0; }

/* Author block */
.author-block {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 24px;
  align-items: center;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 24px 28px;
  margin-top: 20px;
}
.author-block img {
  width: 120px; height: 120px;
  border-radius: 12px;
  object-fit: cover;
  object-position: 35% center;
}
.author-block h4 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.2rem;
  margin-bottom: 4px;
}
.author-block .role-line {
  color: var(--ink-muted);
  font-size: 0.85rem;
  margin-bottom: 8px;
}
.author-block p { font-size: 0.92rem; color: var(--ink-soft); line-height: 1.55; margin-bottom: 8px; }

/* CTA strip onderaan */
.bottom-cta {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 32px 36px;
  display: flex; justify-content: space-between; align-items: center;
  gap: 24px; flex-wrap: wrap;
  margin-top: 32px;
}
.bottom-cta h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.4rem;
}
.bottom-cta p { color: var(--ink-soft); margin-top: 6px; max-width: 50ch; }

/* ============================================================
   HOMEPAGE — richer
   ============================================================ */

/* Split hero with photo card right */
.author-hero {
  padding: 72px 0 56px;
  overflow: hidden;
}
.author-hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
}
.author-hero h1 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  letter-spacing: -0.01em;
  line-height: 1.1;
}
.author-hero h1 strong { color: var(--accent-2); font-weight: 600; }
.author-hero .lede {
  font-size: 1.1rem;
  color: var(--ink-soft);
  margin-top: 18px;
  max-width: 56ch;
  line-height: 1.55;
}
.author-hero .lede strong { color: var(--ink); font-weight: 600; }
.author-hero .meta-strip {
  display: flex; gap: 24px; margin-top: 24px;
  flex-wrap: wrap;
  font-size: 0.85rem; color: var(--ink-muted);
}
.author-hero .meta-strip strong { color: var(--ink); font-weight: 600; font-family: var(--font-display); }

.author-photo-card {
  position: relative;
  border-radius: var(--r-xl);
  overflow: hidden;
  box-shadow: 0 24px 60px -24px rgba(21,32,26,0.30);
}
.author-photo-card img {
  width: 100%; display: block;
  aspect-ratio: 4/5;
  object-fit: cover;
  object-position: 35% center;
}
.author-photo-card .photo-caption {
  position: absolute; left: 20px; right: 20px; bottom: 20px;
  background: rgba(15,24,21,0.78);
  backdrop-filter: blur(10px);
  color: #fff;
  border-radius: var(--r-md);
  padding: 14px 18px;
  display: flex; gap: 14px; align-items: center;
  font-size: 0.88rem;
}
.author-photo-card .photo-caption .chip {
  background: var(--accent); color: #fff;
  padding: 3px 9px; border-radius: 999px;
  font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.04em;
}
.author-photo-card .photo-caption strong { color: #fff; font-weight: 500; display: block; }
.author-photo-card .photo-caption .ph-sub { color: rgba(255,255,255,0.7); font-size: 0.78rem; }

/* Trust strip for venues / publicaties */
.venue-strip {
  padding: 32px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.venue-inner {
  display: flex; align-items: center; gap: 36px; flex-wrap: wrap; justify-content: space-between;
}
.venue-label { color: var(--ink-muted); font-size: 0.85rem; }
.venue-logos { display: flex; gap: 32px; flex-wrap: wrap; align-items: center; }
.venue-logo {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: 0.04em;
  font-size: 1rem;
  color: var(--ink-soft);
  opacity: 0.78;
}

/* Rijkere syllabus-tegels op homepage */
.syl-card.rich {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 28px 32px;
  display: grid;
  grid-template-columns: 110px 1fr auto;
  gap: 28px;
  align-items: center;
  text-decoration: none;
  color: inherit;
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
  margin-bottom: 14px;
}
.syl-card.rich:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--line-strong);
}
.syl-card.rich.disabled:hover {
  transform: none; box-shadow: none; cursor: default; border-color: var(--line);
}
.syl-mini-cover {
  width: 110px; height: 150px;
  background: linear-gradient(135deg, var(--primary), var(--bg-deep));
  border-radius: 3px;
  box-shadow: 3px 6px 16px rgba(0,0,0,0.14);
  display: flex; flex-direction: column;
  padding: 14px 12px;
  color: #fff;
  position: relative;
}
.syl-mini-cover.amber { background: linear-gradient(135deg, #b06829, #6a3e18); }
.syl-mini-cover.muted { background: linear-gradient(135deg, #8a948c, #4a574f); }
.syl-mini-cover::after {
  content: "";
  position: absolute; top: 0; left: 4px; bottom: 0;
  width: 1px; background: rgba(255,255,255,0.12);
}
.syl-mini-cover .mc-eyebrow {
  font-size: 0.55rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-soft);
  font-weight: 600;
  margin-bottom: 4px;
}
.syl-mini-cover .mc-num {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 4px;
}
.syl-mini-cover.amber .mc-num { color: #f5e4d0; }
.syl-mini-cover .mc-title {
  font-family: var(--font-display);
  font-size: 0.7rem;
  line-height: 1.2;
  font-weight: 500;
  color: #fff;
}
.syl-card.rich .syl-content h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.25rem;
  margin-bottom: 6px;
}
.syl-card.rich .syl-tags {
  display: flex; gap: 6px; flex-wrap: wrap;
  margin-bottom: 10px;
}
.syl-card.rich .syl-tags .tag {
  font-size: 0.7rem; padding: 2px 8px;
  border-radius: 999px; font-weight: 600;
  letter-spacing: 0.04em;
}
.syl-card.rich .syl-content p {
  color: var(--ink-soft);
  font-size: 0.94rem;
  line-height: 1.5;
}
.syl-card.rich .syl-cta {
  text-align: right;
  white-space: nowrap;
}
.syl-card.rich .syl-cta .price {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--ink);
}
.syl-card.rich .syl-cta small {
  display: block; color: var(--ink-muted);
  font-size: 0.78rem; margin: 4px 0 12px;
}

/* Spreker box (premium) */
.spreker-card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  padding: 40px 44px;
  position: relative;
  overflow: hidden;
}
.spreker-card::after {
  content: "";
  position: absolute; top: 0; right: 0;
  width: 280px; height: 100%;
  background: radial-gradient(circle at 100% 50%, rgba(201,123,58,0.10), transparent 70%);
  pointer-events: none;
}
.spreker-card > * { position: relative; z-index: 1; }
.spreker-card h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.3rem;
  margin-bottom: 16px;
}
.spreker-card .topics {
  list-style: none; padding: 0; margin: 0 0 22px;
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 8px 24px;
  color: var(--ink-soft); font-size: 0.92rem;
}
.spreker-card .topics li::before {
  content: "→ "; color: var(--accent-2); font-weight: 700;
}
.spreker-pricing-box {
  background: var(--bg);
  border-radius: 10px;
  padding: 18px 22px;
  margin: 18px 0;
  font-size: 0.92rem;
  color: var(--ink-soft);
}
.spreker-pricing-box strong { color: var(--ink); font-family: var(--font-display); font-size: 1rem; }
.recent-talks {
  margin-top: 14px;
  font-size: 0.9rem;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

/* Inline form (richer) */
.inline-form {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 28px 32px;
  margin-top: 24px;
}
.inline-form h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.15rem;
  margin-bottom: 4px;
}
.inline-form .help-line {
  color: var(--ink-muted);
  font-size: 0.88rem;
  margin-bottom: 20px;
}
.inline-form .fields { display: flex; flex-direction: column; gap: 14px; }

/* Over Tom block (richer) */
.over-tom-rich {
  display: grid; grid-template-columns: 200px 1fr;
  gap: 40px; align-items: start;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 32px 36px;
}
.over-tom-rich img {
  width: 200px; height: 240px;
  border-radius: var(--r-lg);
  object-fit: cover;
  object-position: 35% center;
}
.over-tom-rich .role-line {
  color: var(--ink-muted);
  font-size: 0.92rem;
  margin: 6px 0 16px;
}
.over-tom-rich p {
  color: var(--ink-soft); line-height: 1.65;
  margin-bottom: 12px;
}
.over-tom-rich .bio-stats {
  margin-top: 18px;
  display: flex; gap: 28px; flex-wrap: wrap;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}
.over-tom-rich .bio-stats div { display: flex; flex-direction: column; }
.over-tom-rich .bio-stats strong {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--ink);
}
.over-tom-rich .bio-stats span {
  font-size: 0.78rem;
  color: var(--ink-muted);
  margin-top: 2px;
}

/* Section spacing op homepage */
.auteur-section {
  padding: 72px 0;
}
.auteur-section + .auteur-section { border-top: 1px solid var(--line); }
.auteur-section .container { max-width: 1080px; }
.auteur-section .section-head {
  display: flex; justify-content: space-between; align-items: end;
  gap: 24px; margin-bottom: 32px; flex-wrap: wrap;
}
.auteur-section .section-head h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.6rem, 2.4vw, 2rem);
  max-width: 28ch;
  margin-top: 8px;
}
.auteur-section .section-head .eyebrow {
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-2);
  font-weight: 600;
}
.auteur-section .section-head p.lede {
  color: var(--ink-soft);
  max-width: 48ch;
  margin-top: 8px;
  font-size: 0.98rem;
  line-height: 1.55;
}

/* Contact strip (richer) */
.contact-strip {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.contact-strip .block {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 26px 28px;
}
.contact-strip h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.15rem;
  margin-bottom: 8px;
}
.contact-strip p { color: var(--ink-soft); font-size: 0.95rem; line-height: 1.55; }
.contact-strip p a { color: var(--primary); text-decoration: underline; }

/* ============================================================
   ARTIKELS — overview + detail
   ============================================================ */

/* Filter bar */
.filter-bar {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 18px 22px;
  display: flex; justify-content: space-between; align-items: center;
  gap: 24px; flex-wrap: wrap;
  margin-bottom: 32px;
}
.filter-group {
  display: flex; align-items: center; gap: 10px;
  font-size: 0.85rem;
}
.filter-group .lbl {
  color: var(--ink-muted);
  font-weight: 500;
  margin-right: 4px;
}
.chip-set { display: flex; gap: 6px; flex-wrap: wrap; }
.chip-toggle {
  background: var(--bg);
  border: 1px solid var(--line-strong);
  color: var(--ink-soft);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.84rem;
  cursor: pointer;
  font-weight: 500;
  transition: background .12s, border-color .12s, color .12s;
}
.chip-toggle:hover { color: var(--ink); border-color: var(--ink-soft); }
.chip-toggle.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

/* Topic group */
.topic-group {
  margin-bottom: 56px;
}
.topic-group-head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 16px; margin-bottom: 18px;
  flex-wrap: wrap;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.topic-group-head h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.4rem;
}
.topic-group-head .topic-meta {
  color: var(--ink-muted);
  font-size: 0.85rem;
}
.topic-group-head .topic-meta strong { color: var(--ink); font-family: var(--font-display); font-weight: 500; }

.article-trio {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

/* Article card per audience */
.article-card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 22px 24px;
  display: flex; flex-direction: column;
  text-decoration: none;
  color: inherit;
  position: relative;
  overflow: hidden;
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.article-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--line-strong);
}
.article-card::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0; height: 4px;
}
.article-card.aud-engineer::before  { background: var(--primary); }
.article-card.aud-architect::before { background: var(--accent); }
.article-card.aud-contractor::before { background: #2d7d5a; }

.audience-badge {
  display: inline-flex; gap: 8px; align-items: center;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 14px;
  width: fit-content;
}
.audience-badge.aud-engineer  { background: #e7efe9; color: var(--primary); }
.audience-badge.aud-architect { background: var(--accent-soft); color: var(--accent-2); }
.audience-badge.aud-contractor { background: #e2f0e9; color: #1d6f47; }
.audience-badge .aud-icon {
  width: 16px; height: 16px;
  border-radius: 50%;
  display: grid; place-items: center;
  font-size: 0.7rem;
  background: currentColor;
  color: #fff;
}

.article-card h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.05rem;
  line-height: 1.25;
  margin-bottom: 8px;
}
.article-card p {
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 1.5;
  flex: 1;
  margin-bottom: 12px;
}
.article-card .art-meta {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.78rem;
  color: var(--ink-muted);
  padding-top: 12px;
  border-top: 1px solid var(--line);
}
.article-card .art-meta .lang-chips { display: flex; gap: 4px; }
.article-card .art-meta .lang-chip {
  background: var(--bg);
  border: 1px solid var(--line-strong);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

/* Empty state per filter */
.filter-empty {
  text-align: center;
  padding: 60px 24px;
  color: var(--ink-muted);
  font-size: 0.95rem;
}

/* ===== Topic card (één per onderwerp, met audience-varianten) ===== */
.topic-card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 28px 32px;
  text-decoration: none;
  color: inherit;
  display: block;
  margin-bottom: 18px;
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
  position: relative;
  overflow: hidden;
}
.topic-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--line-strong);
}
.topic-card .topic-series {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-2);
  font-weight: 600;
  margin-bottom: 8px;
}
.topic-card h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.4rem;
  line-height: 1.2;
  margin-bottom: 10px;
}
.topic-card p.topic-intro {
  color: var(--ink-soft);
  font-size: 0.95rem;
  line-height: 1.55;
  max-width: 68ch;
  margin-bottom: 18px;
}
.topic-card .topic-foot {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  gap: 18px;
  flex-wrap: wrap;
}
.topic-card .topic-audiences {
  display: flex; gap: 8px; flex-wrap: wrap;
  font-size: 0.78rem;
}
.aud-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: 0.03em;
}
.aud-chip.aud-engineer  { background: #e7efe9; color: var(--primary); }
.aud-chip.aud-architect { background: var(--accent-soft); color: var(--accent-2); }
.aud-chip.aud-contractor { background: #e2f0e9; color: #1d6f47; }
.aud-chip .pages {
  font-weight: 400;
  opacity: 0.72;
}
.topic-card .topic-meta-line {
  font-size: 0.82rem;
  color: var(--ink-muted);
}
.topic-card .topic-meta-line strong { color: var(--ink); font-weight: 500; }

/* ===== Audience tabs (op artikel-detail) ===== */
.aud-tabs {
  display: flex; gap: 4px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 4px;
  margin-bottom: 32px;
  width: fit-content;
}
.aud-tab {
  background: transparent; border: 0;
  padding: 10px 18px;
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink-soft);
  cursor: pointer;
  border-radius: 7px;
  display: inline-flex; align-items: center; gap: 8px;
  transition: background .15s ease, color .15s ease;
}
.aud-tab:hover { color: var(--ink); }
.aud-tab .aud-tab-pages {
  font-size: 0.72rem;
  color: var(--ink-muted);
  font-weight: 400;
}
.aud-tab.active {
  background: var(--primary);
  color: #fff;
}
.aud-tab.active .aud-tab-pages { color: rgba(255,255,255,0.72); }
.aud-tab.active.aud-engineer { background: var(--primary); }
.aud-tab.active.aud-architect { background: var(--accent-2); }
.aud-tab.active.aud-contractor { background: #1d6f47; }

/* Article versions */
.article-version { display: none; }
.article-version.active { display: block; }

/* Tab-header strip (sticky bar bovenaan artikel) */
.tab-bar-sticky {
  background: var(--bg);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
}
.tab-bar-sticky .container {
  max-width: 760px; margin: 0 auto;
  padding: 14px 24px;
  display: flex; gap: 16px; align-items: center; justify-content: space-between;
  flex-wrap: wrap;
}
.tab-bar-sticky .tab-bar-label {
  color: var(--ink-muted);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
}
.tab-bar-sticky .tab-bar-label strong { color: var(--ink); font-weight: 500; }


/* ============================================================
   ARTIKEL DETAIL
   ============================================================ */
.artikel-head {
  background: var(--bg-elev);
  border-bottom: 1px solid var(--line);
  padding: 56px 0 44px;
}
.artikel-head-inner {
  max-width: 760px; margin: 0 auto;
  padding: 0 24px;
}
.artikel-head .breadcrumb-line {
  font-size: 0.85rem; color: var(--ink-muted);
  margin-bottom: 22px;
}
.artikel-head .breadcrumb-line a { color: var(--ink-soft); }
.artikel-head .breadcrumb-line a:hover { color: var(--ink); }

.artikel-head .series-label {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-2);
  font-weight: 600;
  margin-bottom: 10px;
}
.artikel-head h1 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  line-height: 1.15;
  margin-bottom: 14px;
}
.artikel-head .artikel-subtitle {
  color: var(--ink-soft);
  font-size: 1.05rem;
  margin-bottom: 22px;
}
.artikel-head .artikel-meta-row {
  display: flex; gap: 24px; align-items: center;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--ink-muted);
  padding: 16px 0 0;
  border-top: 1px solid var(--line);
}
.artikel-head .artikel-meta-row strong { color: var(--ink); font-weight: 500; font-family: var(--font-display); }
.artikel-head .artikel-meta-row .lang-toggle {
  display: inline-flex; gap: 4px;
  margin-left: auto;
}
.artikel-head .artikel-meta-row .lang-toggle a {
  background: var(--bg);
  border: 1px solid var(--line-strong);
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
}
.artikel-head .artikel-meta-row .lang-toggle a.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.artikel-body {
  max-width: 760px; margin: 0 auto;
  padding: 48px 24px 56px;
  color: var(--ink-soft);
  line-height: 1.65;
  font-size: 1rem;
}
.artikel-body > p { margin-bottom: 16px; }
.artikel-body h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.4rem;
  color: var(--ink);
  margin: 36px 0 12px;
}
.artikel-body h2:first-child { margin-top: 0; }
.artikel-body h3 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--ink);
  margin: 24px 0 8px;
}
.artikel-body ul, .artikel-body ol { margin: 0 0 18px 22px; padding: 0; }
.artikel-body li { margin-bottom: 6px; }
.artikel-body strong { color: var(--ink); font-weight: 600; }
.artikel-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0 24px;
  font-size: 0.92rem;
}
.artikel-body th, .artikel-body td {
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.artikel-body th {
  background: var(--bg);
  font-weight: 600;
  color: var(--ink);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.artikel-body tbody tr:hover { background: var(--bg); }
.artikel-body .callout {
  background: var(--accent-soft);
  border-left: 3px solid var(--accent);
  padding: 14px 18px;
  border-radius: 0 8px 8px 0;
  margin: 18px 0;
  font-size: 0.94rem;
  color: var(--ink);
}
.artikel-body .references {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 18px 22px;
  margin-top: 24px;
  font-size: 0.88rem;
  color: var(--ink-soft);
  line-height: 1.55;
}

/* Author footer of an article */
.artikel-author-foot {
  max-width: 760px; margin: 0 auto;
  padding: 0 24px 56px;
}
.artikel-author-card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 24px 28px;
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 20px;
  align-items: center;
}
.artikel-author-card img {
  width: 80px; height: 80px;
  border-radius: 50%;
  object-fit: cover;
  object-position: 35% center;
}
.artikel-author-card h4 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.1rem;
  margin-bottom: 4px;
}
.artikel-author-card p {
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 1.5;
  margin: 0;
}

/* Related articles strip */
.artikel-related {
  background: var(--bg-elev);
  border-top: 1px solid var(--line);
  padding: 56px 0;
}
.artikel-related-inner {
  max-width: 1080px; margin: 0 auto;
  padding: 0 24px;
}
.artikel-related h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.4rem;
  margin-bottom: 14px;
}
.artikel-related .lede { color: var(--ink-soft); margin-bottom: 20px; }

/* PDF download strip on detail */
.pdf-strip {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 16px 22px;
  display: flex; justify-content: space-between; align-items: center;
  margin: 24px 0;
  gap: 16px;
  flex-wrap: wrap;
}
.pdf-strip .pdf-info {
  display: flex; align-items: center; gap: 14px;
}
.pdf-strip .pdf-icon {
  width: 40px; height: 50px;
  background: var(--danger);
  color: #fff;
  border-radius: 4px;
  display: grid; place-items: center;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}
.pdf-strip .pdf-info h4 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
}
.pdf-strip .pdf-info small { color: var(--ink-muted); font-size: 0.8rem; }

/* Gastschrijver pagina */
.gast-hero {
  padding: 56px 0 40px;
  border-bottom: 1px solid var(--line);
}
.gast-hero-inner {
  max-width: 760px; margin: 0 auto;
  padding: 0 24px;
}
.gast-hero h1 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.9rem, 3.4vw, 2.6rem);
  line-height: 1.15;
  margin-bottom: 14px;
}
.gast-hero h1 strong { color: var(--accent-2); font-weight: 600; }
.gast-hero p { color: var(--ink-soft); font-size: 1.1rem; line-height: 1.6; max-width: 58ch; }

.gast-steps {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 24px;
}
.gast-step {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 24px 26px;
}
.gast-step .step-num {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent-2);
  display: grid; place-items: center;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.05rem;
  margin-bottom: 14px;
}
.gast-step h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.1rem;
  margin-bottom: 6px;
}
.gast-step p { color: var(--ink-soft); font-size: 0.92rem; line-height: 1.55; }

/* ============================================================
   Section heading op artikel-overzicht
   ============================================================ */
.artikel-overview-section {
  max-width: 1080px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

@media (max-width: 880px) {
  .article-trio { grid-template-columns: 1fr; }
  .gast-steps { grid-template-columns: 1fr; }
  .filter-bar { flex-direction: column; align-items: flex-start; }
  .artikel-author-card { grid-template-columns: 1fr; text-align: center; }
  .artikel-author-card img { margin: 0 auto; }
}

/* ============================================================
   SLIM FOOTER (vereenvoudigd)
   ============================================================ */
footer.slim-footer {
  background: var(--bg-deep);
  color: rgba(255,255,255,0.7);
  padding: 36px 0 28px;
  margin-top: 0;
}
.slim-foot-row {
  max-width: 1080px; margin: 0 auto;
  padding: 0 24px;
  display: flex; justify-content: space-between; align-items: center;
  gap: 24px; flex-wrap: wrap;
}
.slim-foot-row .logo { color: #fff; }
.slim-foot-row .logo-mark {
  background: linear-gradient(135deg, var(--accent), #8b4f1c);
  color: #fff;
}
.slim-foot-links {
  display: flex; gap: 22px; flex-wrap: wrap;
  font-size: 0.92rem;
}
.slim-foot-links a { color: rgba(255,255,255,0.78); }
.slim-foot-links a:hover { color: var(--accent-soft); }
.slim-foot-bottom {
  max-width: 1080px; margin: 22px auto 0;
  padding: 18px 24px 0;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.55);
  gap: 16px; flex-wrap: wrap;
}
.slim-foot-bottom a { color: rgba(255,255,255,0.55); }
.slim-foot-bottom a:hover { color: rgba(255,255,255,0.85); }

@media (max-width: 640px) {
  .slim-foot-row { flex-direction: column; align-items: flex-start; }
  .slim-foot-bottom { flex-direction: column; align-items: flex-start; }
}

/* ============================================================
   CONTACT FORM (op homepage, vervangt e-mailadres)
   ============================================================ */
.contact-form-card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 32px 36px;
}
.contact-form-card h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.15rem;
  margin-bottom: 6px;
}
.contact-form-card .help-line {
  color: var(--ink-muted);
  font-size: 0.88rem;
  margin-bottom: 20px;
}
.contact-form-card .fields { display: flex; flex-direction: column; gap: 14px; }

/* ============================================================
   RICH FOOTER (legacy, donker - blijft beschikbaar)
   ============================================================ */
footer.rich-footer {
  background: var(--bg-deep);
  color: rgba(255,255,255,0.7);
  padding: 60px 0 24px;
  margin-top: 0;
}
.rich-foot-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  max-width: 1080px; margin: 0 auto;
  padding: 0 24px;
}
footer.rich-footer .logo { color: #fff; }
footer.rich-footer .logo-mark {
  background: linear-gradient(135deg, var(--accent), #8b4f1c);
  color: #fff;
}
footer.rich-footer .foot-col h4 {
  color: #fff;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 14px;
}
footer.rich-footer .foot-col ul {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 10px;
  font-size: 0.9rem;
}
footer.rich-footer .foot-col a { color: rgba(255,255,255,0.7); }
footer.rich-footer .foot-col a:hover { color: var(--accent-soft); }
.rich-foot-bottom {
  max-width: 1080px; margin: 48px auto 0;
  padding: 24px 24px 0;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex; justify-content: space-between;
  font-size: 0.82rem;
}
.rich-foot-bottom a { color: rgba(255,255,255,0.55); }
.rich-foot-bottom a:hover { color: rgba(255,255,255,0.85); }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 880px) {
  .author-hero-grid { grid-template-columns: 1fr; }
  .book-hero-grid { grid-template-columns: 1fr; }
  .book-cover-big { margin: 0 auto; width: 240px; height: 330px; padding: 24px 20px; }
  .book-cover-big .cover-num { font-size: 4rem; }
  .book-cover-big .cover-title { font-size: 1.2rem; }
  .book-meta-grid { grid-template-columns: 1fr; }
  .toc-grid { grid-template-columns: 1fr; }
  .package-grid { grid-template-columns: 1fr; }
  .preview-card { flex-direction: column; text-align: center; }
  .author-block { grid-template-columns: 1fr; text-align: center; }
  .author-block img { margin: 0 auto; }
  .bottom-cta { flex-direction: column; align-items: flex-start; }
  .syl-card.rich { grid-template-columns: 1fr; text-align: center; }
  .syl-mini-cover { margin: 0 auto; }
  .syl-card.rich .syl-cta { text-align: center; }
  .spreker-card { padding: 28px; }
  .spreker-card .topics { grid-template-columns: 1fr; }
  .over-tom-rich { grid-template-columns: 1fr; text-align: center; padding: 28px; }
  .over-tom-rich img { margin: 0 auto; }
  .over-tom-rich .bio-stats { justify-content: center; }
  .contact-strip { grid-template-columns: 1fr; }
  .rich-foot-grid { grid-template-columns: 1fr 1fr; }
  .rich-foot-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .venue-inner { justify-content: center; text-align: center; }
}
@media (max-width: 540px) {
  .rich-foot-grid { grid-template-columns: 1fr; }
}