/* ===========================
   ROMAN BECKER — STADTTEIL-SEITEN
   Shared CSS für alle 86 Stadtteil-Landingpages
   =========================== */

/* CUSTOM PROPERTIES — Palette von romanbecker.de */
:root {
  --navy: #111111;
  --navy-light: #1a1a1a;
  --gold: #c2a990;
  --gold-light: #d4b8a0;
  --accent: #d8613c;
  --white: #ffffff;
  --off-white: #f9f9f9;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-400: #A4A4A4;
  --gray-600: #636363;
  --gray-800: #111111;

  --font-base: 'Inter', sans-serif;
  --font-heading: 'Cardo', serif;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;

  --max-width: 1200px;
  --radius: 8px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 30px rgba(0,0,0,0.15);
  --transition: 0.2s ease;
}

/* RESET */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-base);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--gray-800);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }

/* LAYOUT */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 var(--space-6); }
.section { padding: var(--space-20) 0; }
.section--gray { background: var(--off-white); }
.section--navy { background: var(--navy); color: var(--white); }

/* TYPOGRAPHY */
h1 { font-family: var(--font-heading); font-size: clamp(1.75rem, 5vw, 2.75rem); font-weight: 700; line-height: 1.2; color: var(--navy); }
h2 { font-family: var(--font-heading); font-size: clamp(1.5rem, 4vw, 2.25rem); font-weight: 700; line-height: 1.25; color: var(--navy); margin-bottom: var(--space-4); }
h3 { font-family: var(--font-heading); font-size: clamp(1.1rem, 2.5vw, 1.375rem); font-weight: 700; line-height: 1.3; color: var(--navy); margin-bottom: var(--space-2); }

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: var(--space-3);
}
.section--navy .section-label { color: var(--gold); }
.section--navy h2 { color: var(--white); }

.text-muted { color: var(--gray-600); }
.text-small { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; color: var(--gray-400); }
.text-center { text-align: center; }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }
.max-w-prose { max-width: 720px; }
.leading-relaxed { line-height: 1.8; }
.link-gold { color: var(--gold); }

/* SITE HEADER */
.site-header {
  background: var(--navy);
  padding: var(--space-4) 0;
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}
.site-header__logo {
  color: var(--white);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.0625rem;
  white-space: nowrap;
}
.site-header__logo span { color: var(--gold); }
.site-header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}
.site-header__nav a {
  color: rgba(255,255,255,0.75);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color var(--transition);
}
.site-header__nav a:hover { color: var(--white); }
.site-header__cta {
  background: var(--gold);
  color: var(--navy);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.8125rem;
  text-decoration: none;
  white-space: nowrap;
  transition: all var(--transition);
}
.site-header__cta:hover {
  background: var(--gold-light);
  color: var(--navy);
}

@media (max-width: 768px) {
  .site-header__nav { display: none; }
}

/* BREADCRUMB — visually hidden, kept for SEO/JSON-LD */
.breadcrumb {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-family: var(--font-base);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
}
.btn--primary { background: var(--gold); color: var(--navy); border-color: var(--gold); }
.btn--primary:hover { background: var(--gold-light); border-color: var(--gold-light); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(201,168,76,0.4); }
.btn--outline { background: transparent; color: var(--navy); border-color: var(--navy); }
.btn--outline:hover { background: var(--navy); color: var(--white); transform: translateY(-1px); }
.btn--white-outline { background: transparent; color: var(--white); border-color: var(--white); }
.btn--white-outline:hover { background: rgba(255,255,255,0.1); transform: translateY(-1px); }

/* HERO */
.hero {
  background: var(--navy);
  color: var(--white);
  padding: var(--space-16) 0 var(--space-20);
}
.hero h1 { color: var(--white); margin-bottom: var(--space-4); }
.hero__subtitle {
  font-size: 1.125rem;
  color: rgba(255,255,255,0.8);
  max-width: 640px;
  margin-bottom: var(--space-8);
  line-height: 1.7;
}
.hero__buttons { display: flex; gap: var(--space-4); flex-wrap: wrap; }
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--gold);
  margin-bottom: var(--space-6);
}

/* GRIDS */
.grid-2 { display: grid; grid-template-columns: 1fr; gap: var(--space-6); }
.grid-3 { display: grid; grid-template-columns: 1fr; gap: var(--space-6); }
@media (min-width: 640px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 768px) { .grid-2 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } }

/* CARDS */
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow);
}
.card--navy {
  background: var(--navy);
  color: var(--white);
}
.card__icon {
  width: 48px;
  height: 48px;
  background: var(--off-white);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  color: var(--gold);
}

/* REFERENZ CARD */
.ref-card {
  display: flex;
  gap: var(--space-8);
  align-items: center;
  flex-wrap: wrap;
}
.ref-card__text { flex: 1; min-width: 280px; }
.ref-card__stat { text-align: center; min-width: 200px; }
.ref-card__number { font-size: 2.5rem; font-weight: 700; color: var(--gold); }
.ref-card__label { font-size: 0.875rem; color: rgba(255,255,255,0.7); }

/* MARKET DATA */
.market-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}
@media (min-width: 768px) { .market-grid { grid-template-columns: repeat(4, 1fr); } }

.market-stat {
  text-align: center;
  padding: var(--space-6);
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.market-stat__value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: var(--space-1);
}
.market-stat__label {
  font-size: 0.8125rem;
  color: var(--gray-600);
  line-height: 1.4;
}

/* MAP */
.map-container {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  aspect-ratio: 16 / 9;
}
.map-container iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

/* INFRA LIST */
.infra-list { list-style: none; }
.infra-list li {
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--gray-200);
  font-size: 0.9375rem;
  display: flex;
  gap: var(--space-3);
}
.infra-list li:last-child { border-bottom: none; }
.infra-icon { flex-shrink: 0; width: 20px; text-align: center; }

/* FAQ — semantic details/summary */
.faq-item {
  border-bottom: 1px solid var(--gray-200);
}
.faq-item:last-child { border-bottom: none; }
.faq-item summary {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--navy);
  padding: var(--space-6) 0 var(--space-3);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--gold);
  flex-shrink: 0;
  transition: transform var(--transition);
}
.faq-item[open] summary::after {
  content: '−';
}
.faq-answer {
  font-size: 0.9375rem;
  color: var(--gray-600);
  line-height: 1.7;
  padding-bottom: var(--space-6);
}

/* CTA BOX */
.cta-box {
  background: var(--navy);
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-12);
  text-align: center;
}
.cta-box h2 { color: var(--white); }
.cta-box p { color: rgba(255,255,255,0.8); margin-bottom: var(--space-8); font-size: 1.0625rem; }
.cta-buttons { display: flex; gap: var(--space-4); justify-content: center; flex-wrap: wrap; }

/* NACHBAR LINKS */
.neighbor-links {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  justify-content: center;
}

/* FOOTER */
.footer {
  background: var(--navy);
  color: rgba(255,255,255,0.6);
  padding: var(--space-12) 0 var(--space-8);
  font-size: 0.8125rem;
}
.footer a { color: var(--gold); text-decoration: none; }
.footer a:hover { text-decoration: underline; }
.footer__links { display: flex; gap: var(--space-6); flex-wrap: wrap; margin-bottom: var(--space-6); }

/* REVIEW BADGE */
.review-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--white);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--navy);
  text-decoration: none;
  transition: all var(--transition);
}
.review-badge:hover { box-shadow: var(--shadow); transform: translateY(-1px); }
.review-badge__stars { color: #FBBC04; }