/* ===================================================================
   Immobilien-Ratgeber – Übersicht & Artikel
   Baut auf style.css auf (Design-Tokens, Navbar, Footer werden geerbt)
   =================================================================== */

/* Sub-Page Navbar immer auf hellem Grund lesbar */
.navbar.subpage {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  position: fixed;
}
body.ratgeber { padding-top: 0; }

/* ===== Seiten-Kopf (Hero) ===== */
.rg-hero {
  padding: 10rem 0 3rem;
  background: var(--gray-bg);
  border-bottom: 1px solid var(--gray-light);
}
.rg-hero .container { max-width: 820px; }
.rg-breadcrumb {
  font-size: 0.8rem;
  color: var(--gray);
  letter-spacing: 0.02em;
  margin-bottom: 1.25rem;
}
.rg-breadcrumb a:hover { color: var(--black); }
.rg-breadcrumb span { margin: 0 0.4rem; color: var(--gray-light); }
.rg-eyebrow {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray-dark);
  margin-bottom: 1rem;
}
.rg-hero h1 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(2rem, 5vw, 3.1rem);
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin-bottom: 1.25rem;
}
.rg-hero .rg-lead {
  font-size: 1.18rem;
  color: var(--gray-dark);
  line-height: 1.6;
}
.rg-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin-top: 1.5rem;
  font-size: 0.85rem;
  color: var(--gray);
}
.rg-meta strong { color: var(--dark); font-weight: 600; }

/* ===== Übersichtsseite: Suche/Filter ===== */
.rg-tools { padding: 2.5rem 0 0; }
.rg-tools .container { max-width: 1120px; }
.rg-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 2.5rem;
}
.rg-chip {
  border: 1px solid var(--gray-light);
  background: var(--pure-white);
  color: var(--dark);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.5rem 1.1rem;
  border-radius: 100px;
  cursor: pointer;
  transition: all var(--transition);
}
.rg-chip:hover { border-color: var(--black); }
.rg-chip.active { background: var(--black); color: #fff; border-color: var(--black); }

/* ===== Artikel-Raster (Übersicht) ===== */
.rg-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
  padding-bottom: 5rem;
}
.rg-card {
  display: flex;
  flex-direction: column;
  background: var(--pure-white);
  border: 1px solid var(--gray-light);
  border-radius: 14px;
  padding: 1.75rem;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  height: 100%;
}
.rg-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.rg-card-cat {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 0.9rem;
}
.rg-card h3 {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.28rem;
  line-height: 1.25;
  margin-bottom: 0.75rem;
}
.rg-card p {
  font-size: 0.92rem;
  color: var(--gray-dark);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}
.rg-card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--gray);
}
.rg-card-link { font-weight: 600; color: var(--black); }
.rg-card:hover .rg-card-link { text-decoration: underline; }

/* ===== Artikel-Body ===== */
.rg-article { padding: 3.5rem 0 4rem; }
.rg-article .container { max-width: 760px; }
.rg-prose { font-size: 1.07rem; line-height: 1.8; color: var(--dark); }
.rg-prose > p { margin-bottom: 1.5rem; }
.rg-prose h2 {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.75rem;
  line-height: 1.25;
  margin: 2.75rem 0 1rem;
  letter-spacing: -0.01em;
  color: var(--black);
}
.rg-prose h3 {
  font-weight: 600;
  font-size: 1.22rem;
  margin: 2rem 0 0.75rem;
  color: var(--black);
}
.rg-prose ul, .rg-prose ol { margin: 0 0 1.5rem 1.3rem; }
.rg-prose ul { list-style: disc; }
.rg-prose ol { list-style: decimal; }
.rg-prose li { margin-bottom: 0.6rem; padding-left: 0.3rem; }
.rg-prose strong { font-weight: 600; color: var(--black); }
.rg-prose a { color: var(--black); text-decoration: underline; text-underline-offset: 3px; }

/* Info-/Key-Takeaway-Box */
.rg-callout {
  background: var(--gray-bg);
  border-left: 3px solid var(--black);
  border-radius: 0 10px 10px 0;
  padding: 1.4rem 1.6rem;
  margin: 2rem 0;
  font-size: 1rem;
}
.rg-callout .rg-callout-title {
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-dark);
  margin-bottom: 0.6rem;
}
.rg-callout ul { margin: 0.5rem 0 0 1.2rem; list-style: disc; }
.rg-callout li { margin-bottom: 0.4rem; }

/* Tabelle */
.rg-table-wrap { overflow-x: auto; margin: 1.75rem 0; }
.rg-prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}
.rg-prose th, .rg-prose td {
  text-align: left;
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--gray-light);
}
.rg-prose th { background: var(--gray-bg); font-weight: 600; }

/* FAQ */
.rg-faq { margin-top: 3rem; border-top: 1px solid var(--gray-light); padding-top: 2.5rem; }
.rg-faq h2 {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
}
.rg-faq-item {
  border-bottom: 1px solid var(--gray-light);
}
.rg-faq-q {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  font-family: var(--font-body);
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--black);
  padding: 1.25rem 2rem 1.25rem 0;
  cursor: pointer;
  position: relative;
}
.rg-faq-q::after {
  content: '+';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.4rem;
  color: var(--gray);
  transition: transform var(--transition);
}
.rg-faq-item.open .rg-faq-q::after { content: '−'; }
.rg-faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.rg-faq-a-inner { padding: 0 0 1.25rem; color: var(--gray-dark); line-height: 1.75; }
.rg-faq-item.open .rg-faq-a { max-height: 500px; }

/* CTA-Box */
.rg-cta {
  margin: 3rem 0 0;
  background: var(--black);
  color: #fff;
  border-radius: 16px;
  padding: 2.5rem;
  text-align: center;
}
.rg-cta h3 {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.6rem;
  color: #fff;
  margin-bottom: 0.75rem;
}
.rg-cta p { color: rgba(255,255,255,0.75); max-width: 480px; margin: 0 auto 1.75rem; }
.rg-cta .btn-primary { background: #fff; color: var(--black); }
.rg-cta .btn-primary:hover { opacity: 0.85; }

/* Verwandte Artikel */
.rg-related { background: var(--gray-bg); padding: 4rem 0; }
.rg-related .container { max-width: 1120px; }
.rg-related h2 {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.6rem;
  margin-bottom: 2rem;
}
.rg-related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }

/* Autor/Disclaimer */
.rg-disclaimer {
  margin-top: 2.5rem;
  font-size: 0.82rem;
  color: var(--gray);
  line-height: 1.6;
  border-top: 1px solid var(--gray-light);
  padding-top: 1.5rem;
}

/* Responsive */
@media (max-width: 900px) {
  .rg-grid, .rg-related-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .rg-grid, .rg-related-grid { grid-template-columns: 1fr; }
  .rg-hero { padding: 8rem 0 2.5rem; }
  .rg-cta { padding: 2rem 1.5rem; }
}