/* ===================================================
   PLOETZLICHREICH.DE - Premium Gemstone Investment
   Light luxury theme with gold accents
=================================================== */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600&display=swap');

/* --- CSS Variables (Light Mode) --- */
:root {
  --gold: #C9A84C;
  --gold-light: #E8C96A;
  --gold-dark: #9A7A30;

  --bg-deep: #FFFFFF;
  --bg-card: #F9F7F3;
  --bg-section: #F4F1EA;
  --bg-elevated: #EDE9DF;

  --border: rgba(180, 150, 80, 0.18);
  --border-strong: rgba(180, 150, 80, 0.45);

  --text-primary: #1A1510;
  --text-secondary: #4A4035;
  --text-muted: #8A7A65;

  --radius: 8px;
  --radius-lg: 16px;
  --transition: 0.3s ease;
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
  --shadow-gold: 0 4px 32px rgba(201, 168, 76, 0.18);
  --max-width: 1280px;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--bg-deep);
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: 'Cormorant Garamond', serif;
  font-weight: 600;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); }
h2 { font-size: clamp(2rem, 3.5vw, 3rem); }
h3 { font-size: clamp(1.4rem, 2vw, 1.8rem); }
h4 { font-size: 1.2rem; }

p { color: var(--text-secondary); margin-bottom: 1rem; }

a { color: var(--gold-dark); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--gold); }

img { max-width: 100%; height: auto; display: block; }

section { padding: 80px 0; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Gold divider --- */
.gold-line {
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), transparent);
  margin: 16px 0 24px;
}

.gold-line.center { margin: 16px auto 24px; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: #fff;
  box-shadow: 0 4px 16px rgba(201, 168, 76, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  box-shadow: 0 6px 24px rgba(201, 168, 76, 0.45);
  color: #fff;
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--gold-dark);
  border: 1.5px solid var(--border-strong);
}

.btn-outline:hover {
  background: rgba(201, 168, 76, 0.07);
  border-color: var(--gold);
  color: var(--gold-dark);
  transform: translateY(-2px);
}

.btn-lg { padding: 18px 48px; font-size: 1rem; }

/* --- Badge --- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: rgba(201, 168, 76, 0.10);
  color: var(--gold-dark);
  border: 1px solid var(--border);
}

/* --- Navigation --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: all var(--transition);
  background: transparent;
}

.site-header.scrolled {
  padding: 12px 0;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 20px rgba(0,0,0,0.06);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-mark {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Cormorant Garamond', serif;
  font-weight: 700;
  font-size: 1.2rem;
  color: #fff;
}

.logo-text {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1;
}

.logo-text span { color: var(--gold); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  padding: 8px 14px;
  border-radius: var(--radius);
  transition: all var(--transition);
  text-transform: uppercase;
}

.nav-links a:hover, .nav-links a.active {
  color: var(--gold-dark);
  background: rgba(201, 168, 76, 0.08);
}

.nav-cta {
  background: linear-gradient(135deg, var(--gold), var(--gold-dark)) !important;
  color: #fff !important;
  padding: 10px 24px !important;
  border-radius: var(--radius) !important;
  font-weight: 600 !important;
}

.nav-cta:hover {
  background: linear-gradient(135deg, var(--gold-light), var(--gold)) !important;
  color: #fff !important;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.hamburger span {
  width: 24px;
  height: 1.5px;
  background: var(--text-primary);
  transition: all var(--transition);
}

/* --- Mobile Nav: hidden by default on ALL screen sizes --- */
.nav-mobile {
  display: none; /* hidden on desktop */
  position: fixed;
  inset: 0;
  background: #FFFFFF;
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}

.nav-mobile.open {
  opacity: 1;
  visibility: visible;
}

.nav-mobile a {
  font-family: 'Cormorant Garamond', serif;
  font-size: 2rem;
  color: var(--text-primary);
  text-decoration: none;
}

.nav-mobile a:hover { color: var(--gold); }

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 120px 0 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('https://images.pexels.com/photos/2732096/pexels-photo-2732096.jpeg?auto=compress&cs=tinysrgb&h=650&w=940');
  background-size: cover;
  background-position: center;
  filter: brightness(0.18) saturate(0.6);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.88) 0%, rgba(255,255,255,0.55) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
}

.hero h1 { margin-bottom: 8px; }
.hero h1 span { color: var(--gold); }

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  max-width: 560px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 64px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}

.hero-stat-value {
  font-family: 'Cormorant Garamond', serif;
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
}

.hero-stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 4px;
}

/* --- Section Headers --- */
.section-header {
  margin-bottom: 48px;
}

.section-header.center {
  text-align: center;
}

.section-header .badge {
  margin-bottom: 16px;
}

.section-header p {
  max-width: 600px;
  font-size: 1.05rem;
}

.section-header.center p {
  margin: 0 auto;
}

/* --- Stone Cards Grid --- */
.stones-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.stone-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  text-decoration: none;
  display: block;
  box-shadow: 0 2px 12px rgba(0,0,0,0.05);
}

.stone-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-6px);
  box-shadow: var(--shadow-gold), 0 8px 32px rgba(0,0,0,0.10);
}

.stone-card-img {
  height: 220px;
  overflow: hidden;
  position: relative;
}

.stone-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.stone-card:hover .stone-card-img img {
  transform: scale(1.08);
}

.stone-card-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  color: var(--gold-dark);
  padding: 4px 10px;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.stone-card-body {
  padding: 24px;
}

.stone-card-name {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.stone-card-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 16px;
  line-height: 1.6;
}

.stone-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.stone-card-rendite {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--gold);
}

.stone-card-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.stone-card-arrow {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold-dark);
  transition: all var(--transition);
}

.stone-card:hover .stone-card-arrow {
  background: var(--gold);
  color: #fff;
  border-color: var(--gold);
}

/* --- Feature Grid --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition);
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}

.feature-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-gold), 0 4px 20px rgba(0,0,0,0.07);
}

.feature-icon {
  width: 52px;
  height: 52px;
  background: rgba(201, 168, 76, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--gold);
}

/* --- Simulator --- */
.simulator-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  max-width: 800px;
  margin: 0 auto;
  box-shadow: 0 4px 24px rgba(0,0,0,0.06);
}

.sim-controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 32px;
}

.sim-group label {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.sim-group input[type="range"] {
  width: 100%;
  -webkit-appearance: none;
  height: 3px;
  background: var(--bg-elevated);
  border-radius: 2px;
  outline: none;
  margin-bottom: 8px;
}

.sim-group input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--gold);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(201,168,76,0.4);
}

.sim-group select {
  width: 100%;
  background: #FFFFFF;
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 12px 16px;
  border-radius: var(--radius);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  outline: none;
  cursor: pointer;
}

.sim-value {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--gold);
}

.sim-results {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 28px;
  background: var(--bg-section);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin-bottom: 24px;
}

.sim-result-item {
  text-align: center;
}

.sim-result-value {
  font-family: 'Cormorant Garamond', serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--gold);
}

.sim-result-value.positive { color: #2E7D32; }

.sim-result-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 4px;
}

/* --- Comparison Table --- */
.compare-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 2px 16px rgba(0,0,0,0.05);
}

.compare-table th {
  padding: 16px 20px;
  text-align: left;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  background: var(--bg-section);
  border-bottom: 1px solid var(--border);
}

.compare-table td {
  padding: 16px 20px;
  border-bottom: 1px solid rgba(180,150,80,0.07);
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.compare-table tr:last-child td { border-bottom: none; }

.compare-table tr:hover td {
  background: rgba(201, 168, 76, 0.04);
}

.compare-table .highlight td {
  background: rgba(201, 168, 76, 0.07);
  color: var(--text-primary);
}

.compare-table .gold-cell {
  color: var(--gold-dark);
  font-weight: 600;
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.1rem;
}

/* --- Provider comparison --- */
.providers-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.provider-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: 0 2px 16px rgba(0,0,0,0.05);
}

.provider-card.featured {
  border-color: var(--gold);
  background: linear-gradient(135deg, rgba(201,168,76,0.05), #FFFFFF);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-gold);
}

.provider-card.featured::before {
  content: 'EMPFOHLEN';
  position: absolute;
  top: 20px;
  right: -30px;
  background: var(--gold);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 4px 40px;
  transform: rotate(45deg);
}

.provider-logo {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 8px;
}

.provider-tagline {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.provider-score {
  font-family: 'Cormorant Garamond', serif;
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
}

.provider-score-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.provider-features {
  list-style: none;
  margin: 24px 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.provider-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.provider-features li svg {
  flex-shrink: 0;
  margin-top: 2px;
}

/* --- FAQ --- */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 1px 8px rgba(0,0,0,0.04);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 20px 24px;
  text-align: left;
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  transition: color var(--transition);
}

.faq-question:hover { color: var(--gold-dark); }

.faq-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: transform var(--transition);
  color: var(--gold);
}

.faq-item.open .faq-icon { transform: rotate(45deg); }

.faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.8;
}

.faq-item.open .faq-answer {
  max-height: 400px;
  padding: 0 24px 20px;
}

/* --- CTA Section --- */
.cta-section {
  background: linear-gradient(135deg, rgba(201,168,76,0.08), rgba(201,168,76,0.03));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 80px 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 32px rgba(201,168,76,0.08);
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at center, rgba(201,168,76,0.06) 0%, transparent 60%);
}

/* --- Footer --- */
.site-footer {
  background: var(--bg-section);
  border-top: 1px solid var(--border);
  padding: 60px 0 100px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-brand p {
  font-size: 0.9rem;
  max-width: 300px;
  margin-top: 16px;
  color: var(--text-muted);
}

.footer-col h5 {
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-col a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer-col a:hover { color: var(--gold-dark); }

.footer-bottom {
  padding-top: 28px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 0;
}

/* --- Sticky Footer CTA --- */
.sticky-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 900;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--border);
  box-shadow: 0 -4px 24px rgba(0,0,0,0.08);
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transform: translateY(100%);
  transition: transform 0.4s ease;
}

.sticky-cta.visible { transform: translateY(0); }

.sticky-cta-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.sticky-cta-text strong {
  color: var(--gold-dark);
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.1rem;
}

.sticky-cta-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  font-size: 1.2rem;
  line-height: 1;
  transition: color var(--transition);
}

.sticky-cta-close:hover { color: var(--text-primary); }

/* --- Exit Popup --- */
.exit-popup-overlay {
  position: fixed;
  inset: 0;
  background: rgba(255,255,255,0.75);
  backdrop-filter: blur(8px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.exit-popup-overlay.active {
  opacity: 1;
  visibility: visible;
}

.exit-popup {
  background: #FFFFFF;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 48px;
  max-width: 520px;
  width: 100%;
  position: relative;
  text-align: center;
  box-shadow: 0 24px 80px rgba(0,0,0,0.15);
  transform: scale(0.9);
  transition: transform 0.3s ease;
}

.exit-popup-overlay.active .exit-popup {
  transform: scale(1);
}

.exit-popup-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.5rem;
  transition: color var(--transition);
  padding: 4px;
}

.exit-popup-close:hover { color: var(--text-primary); }

.exit-popup-gem {
  font-size: 3rem;
  margin-bottom: 16px;
}

.exit-popup h3 {
  font-size: 2rem;
  margin-bottom: 12px;
}

.exit-popup h3 span { color: var(--gold); }

.exit-popup p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 24px;
}

.exit-popup .btn { width: 100%; justify-content: center; }

.exit-popup-skip {
  display: block;
  margin-top: 12px;
  font-size: 0.8rem;
  color: var(--text-muted);
  cursor: pointer;
  background: none;
  border: none;
  text-decoration: underline;
}

/* --- Stone detail page --- */
.stone-hero {
  padding: 140px 0 80px;
  position: relative;
}

.stone-hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(0.15) saturate(0.5);
}

.stone-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(255,255,255,0.92) 50%, rgba(255,255,255,0.3));
}

.stone-hero-content {
  position: relative;
  z-index: 2;
  max-width: 600px;
}

.stone-specs {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
  margin: 32px 0;
}

.stone-spec {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: 0 1px 8px rgba(0,0,0,0.04);
}

.stone-spec-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.stone-spec-value {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--gold);
}

/* --- Price chart canvas --- */
.chart-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin: 32px 0;
  box-shadow: 0 2px 16px rgba(0,0,0,0.05);
}

/* --- Rendite page --- */
.rendite-bar-item {
  margin-bottom: 16px;
}

.rendite-bar-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  font-size: 0.9rem;
}

.rendite-bar-label { color: var(--text-secondary); }
.rendite-bar-value { color: var(--gold-dark); font-weight: 600; }

.rendite-bar-track {
  height: 8px;
  background: var(--bg-elevated);
  border-radius: 4px;
  overflow: hidden;
}

.rendite-bar-fill {
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  transition: width 1.2s ease;
  width: 0%;
}

/* --- Breadcrumb --- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--gold-dark); }
.breadcrumb-sep { color: var(--text-muted); }

/* --- Info box --- */
.info-box {
  background: rgba(201,168,76,0.05);
  border: 1px solid var(--border);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin: 24px 0;
}

.info-box p { margin: 0; font-size: 0.9rem; }

/* --- Split layout --- */
.split-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.split-layout.reverse { direction: rtl; }
.split-layout.reverse > * { direction: ltr; }

/* --- Reveal on scroll --- */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-on-scroll.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* --- Rating stars --- */
.rating {
  display: flex;
  gap: 4px;
  color: var(--gold);
  font-size: 1.1rem;
}

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-section); }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--gold); }

/* --- Sections with alternate bg --- */
section:nth-child(even) { background: var(--bg-section); }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .providers-grid { grid-template-columns: 1fr; }
  .split-layout { grid-template-columns: 1fr; gap: 40px; }
  .split-layout.reverse { direction: ltr; }
}

@media (max-width: 768px) {
  section { padding: 60px 0; }

  .nav-links, .nav-cta-wrap { display: none; }

  .hamburger { display: flex; }

  /* Mobile nav becomes a flex overlay when hamburger is triggered */
  .nav-mobile {
    display: flex; /* enabled only on mobile */
  }

  .sim-controls { grid-template-columns: 1fr; }
  .sim-results { grid-template-columns: 1fr; }

  .hero-stats { gap: 24px; }

  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }

  .cta-section { padding: 48px 32px; }

  .stone-specs { grid-template-columns: 1fr 1fr; }

  .sticky-cta { flex-wrap: wrap; justify-content: center; text-align: center; }

  .exit-popup { padding: 32px 24px; }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .stone-specs { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
}