/* ==========================================================================
   CONCEPT 3: THE ZURICH & GENEVA PRIVATE VAULT
   Aesthetic: Ultra-Discreet Billionaire Prestige / Architectural Luxury
   ========================================================================== */

:root {
  --c3-bg: #080A0E;
  --c3-bg-alt: #0D1016;
  --c3-surface: #121620;
  --c3-card: #181E2A;
  --c3-card-hover: #1F2736;
  --c3-champagne: #D1B46A;
  --c3-champagne-light: #F0DFC0;
  --c3-platinum: #E2E8F0;
  --c3-text: #D1D5DB;
  --c3-text-muted: #9CA3AF;
  --c3-heading: #FFFFFF;
  --c3-border: rgba(209, 180, 106, 0.2);
  --c3-border-subtle: rgba(255, 255, 255, 0.08);
  --c3-font-heading: 'Cinzel', Georgia, serif;
  --c3-font-sub: 'Montserrat', sans-serif;
  --c3-font-body: 'Plus Jakarta Sans', system-ui, sans-serif;
}

body.concept-3 {
  background-color: var(--c3-bg);
  color: var(--c3-text);
  font-family: var(--c3-font-body);
  font-size: var(--text-base);
  line-height: 1.75;
}

/* Header & Strict Single-Line Navigation */
.c3-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-nav);
  background: rgba(8, 10, 14, 0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--c3-border-subtle);
  transition: all var(--transition-fast);
}

.c3-header.is-scrolled {
  background: rgba(8, 10, 14, 0.98);
  border-bottom: 1px solid var(--c3-border);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7);
}

.c3-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: clamp(75px, 8vw, 92px);
  width: 100%;
  gap: clamp(1rem, 2vw, 2.5rem);
}

.c3-logo-wrap {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.c3-logo-img {
  height: clamp(28px, 2.6vw, 36px);
  width: auto;
  filter: brightness(0) invert(1);
  transition: transform var(--transition-fast);
}

.c3-nav-list {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 1.8vw, 2.2rem);
  flex-wrap: nowrap;
  white-space: nowrap;
  margin-left: auto;
  margin-right: clamp(1rem, 2vw, 2.5rem);
}

.c3-nav-link {
  font-family: var(--c3-font-sub);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c3-text-muted);
  font-weight: 500;
  position: relative;
  padding: 6px 0;
  white-space: nowrap !important;
  display: inline-block;
  line-height: 1;
}

.c3-nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--c3-champagne);
  transition: width var(--transition-fast);
}

.c3-nav-link:hover {
  color: var(--c3-champagne-light);
}
.c3-nav-link:hover::after {
  width: 100%;
}

.c3-btn-vault {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  background: transparent;
  border: 1px solid var(--c3-champagne);
  color: var(--c3-champagne-light);
  font-family: var(--c3-font-sub);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 600;
  border-radius: 2px;
  transition: all var(--transition-medium);
  white-space: nowrap !important;
  flex-shrink: 0;
  line-height: 1;
}

.c3-btn-vault:hover {
  background: var(--c3-champagne);
  color: #080A0E;
  box-shadow: 0 4px 20px rgba(209, 180, 106, 0.35);
}

/* Atmospheric Hero with Background Image */
.c3-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: clamp(110px, 13vw, 150px);
  padding-bottom: clamp(60px, 8vw, 100px);
  background: linear-gradient(180deg, rgba(8, 10, 14, 0.65) 0%, rgba(8, 10, 14, 0.96) 100%), url('../images/Darling-Muse-Beautiful-Travel-Companion-Luxury-Travel-Escort-RSZv2.0.jpg') center/cover no-repeat;
  overflow: hidden;
}

.c3-hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  width: 100%;
}

.c3-pretitle {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--c3-font-sub);
  font-size: 0.75rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--c3-champagne);
  margin-bottom: var(--space-xs);
  font-weight: 500;
}
.c3-pretitle::before,
.c3-pretitle::after {
  content: '—';
  color: var(--c3-champagne);
}

.c3-hero-title {
  font-family: var(--c3-font-heading);
  font-size: var(--text-hero);
  font-weight: 400;
  letter-spacing: 0.04em;
  line-height: 1.15;
  color: var(--c3-heading);
  max-width: 1100px;
  margin: 0 auto var(--space-md);
  text-shadow: 0 4px 30px rgba(0, 0, 0, 0.85);
}

.c3-hero-statement {
  font-size: var(--text-base);
  color: #D1D5DB;
  line-height: 1.85;
  max-width: 820px;
  margin: 0 auto var(--space-lg);
  font-weight: 300;
}

/* 3 Core Experience Modules */
.c3-hero-modules {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.25rem, 2.5vw, 2.25rem);
  max-width: 1220px;
  margin: 0 auto;
}

.c3-module-card {
  background: var(--c3-surface);
  border: 1px solid var(--c3-border-subtle);
  border-radius: 8px;
  overflow: hidden;
  transition: all var(--transition-medium);
  box-shadow: 0 16px 40px rgba(0,0,0,0.6);
  display: flex;
  flex-direction: column;
}

.c3-module-card:hover {
  transform: translateY(-8px);
  border-color: var(--c3-champagne);
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.8), 0 0 25px rgba(209, 180, 106, 0.2);
}

.c3-module-img-wrap {
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.c3-module-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.c3-module-card:hover .c3-module-img {
  transform: scale(1.08);
}

.c3-module-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  text-align: center;
}

.c3-module-btn {
  font-family: var(--c3-font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c3-champagne-light);
  padding: 8px 0;
  border-bottom: 1px solid rgba(209, 180, 106, 0.3);
  transition: all var(--transition-fast);
}
.c3-module-card:hover .c3-module-btn {
  color: #FFFFFF;
  border-color: var(--c3-champagne);
}

/* Press Marquee */
.c3-press-section {
  padding: clamp(1.75rem, 3vw, 2.75rem) 0;
  background: var(--c3-bg-alt);
  border-top: 1px solid var(--c3-border-subtle);
  border-bottom: 1px solid var(--c3-border-subtle);
  text-align: center;
}

.c3-press-label {
  font-family: var(--c3-font-sub);
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c3-champagne);
  margin-bottom: 1.25rem;
}

.c3-press-img {
  max-width: min(880px, 90vw);
  margin: 0 auto;
  opacity: 0.85;
}

/* Models Salon */
.c3-section {
  padding: clamp(4.5rem, 8vw, 7.5rem) 0;
  border-bottom: 1px solid var(--c3-border-subtle);
}

.c3-section-head {
  text-align: center;
  max-width: 860px;
  margin: 0 auto clamp(2.5rem, 5vw, 4.5rem);
}

.c3-section-title {
  font-family: var(--c3-font-heading);
  font-size: var(--text-3xl);
  color: var(--c3-heading);
  letter-spacing: 0.04em;
  margin-bottom: var(--space-xs);
}

.c3-models-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(1rem, 2vw, 2rem);
  margin-bottom: 3.5rem;
}

.c3-model-card {
  background: var(--c3-card);
  border: 1px solid var(--c3-border-subtle);
  border-radius: 6px;
  overflow: hidden;
  transition: all var(--transition-medium);
  box-shadow: 0 12px 30px rgba(0,0,0,0.5);
}

.c3-model-card:hover {
  transform: translateY(-8px);
  border-color: var(--c3-champagne);
  box-shadow: 0 20px 45px rgba(0,0,0,0.8), 0 0 20px rgba(209, 180, 106, 0.2);
}

.c3-model-img-wrap {
  aspect-ratio: 3 / 4;
  overflow: hidden;
}

.c3-model-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.c3-model-card:hover .c3-model-img {
  transform: scale(1.06);
}

.c3-model-nameplate {
  padding: 1.25rem;
  text-align: center;
  border-top: 1px solid var(--c3-border-subtle);
  background: var(--c3-surface);
}

.c3-model-name {
  font-family: var(--c3-font-heading);
  font-size: 0.95rem;
  color: var(--c3-heading);
  letter-spacing: 0.05em;
}

/* Why We Are Different & Exceptional Talent Bento Grids */
.c3-bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.25rem, 2.5vw, 2.25rem);
}

.c3-bento-card {
  background: var(--c3-card);
  border: 1px solid var(--c3-border-subtle);
  border-radius: 8px;
  padding: clamp(1.75rem, 3vw, 2.5rem);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-medium);
}

.c3-bento-card:hover {
  background: var(--c3-card-hover);
  border-color: var(--c3-champagne);
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.6);
}

.c3-bento-badge {
  font-family: var(--c3-font-sub);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c3-champagne);
  margin-bottom: 1rem;
}

.c3-bento-title {
  font-family: var(--c3-font-heading);
  font-size: var(--text-lg);
  color: var(--c3-heading);
  margin-bottom: 1rem;
  line-height: 1.35;
}

.c3-bento-text {
  color: var(--c3-text-muted);
  font-size: var(--text-sm);
  line-height: 1.8;
}

/* Call Us Old Fashioned Architectural Banner */
.c3-chivalry-banner {
  background: linear-gradient(135deg, #131822 0%, #0A0D12 100%);
  border: 1px solid var(--c3-border);
  border-radius: 12px;
  padding: clamp(2.5rem, 5vw, 4.5rem);
  margin: clamp(3rem, 6vw, 5rem) 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 4vw, 4rem);
  align-items: center;
}

.c3-chivalry-title {
  font-family: var(--c3-font-heading);
  font-size: var(--text-2xl);
  color: #FFFFFF;
  margin-bottom: 1.25rem;
}

.c3-chivalry-lead {
  font-size: var(--text-base);
  color: #E2E8F0;
  line-height: 1.85;
}

/* Testimonials */
.c3-testi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.25rem, 2.5vw, 2.25rem);
}

.c3-testi-card {
  background: var(--c3-surface);
  border: 1px solid var(--c3-border-subtle);
  border-radius: 8px;
  padding: clamp(1.75rem, 3vw, 2.25rem);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-medium);
}

.c3-testi-card:hover {
  transform: translateY(-5px);
  border-color: var(--c3-champagne);
  box-shadow: 0 16px 40px rgba(0,0,0,0.6);
}

.c3-testi-title {
  font-family: var(--c3-font-heading);
  font-size: var(--text-md);
  color: #FFFFFF;
  margin-bottom: 0.85rem;
}

.c3-testi-text {
  color: var(--c3-text-muted);
  font-size: var(--text-sm);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.c3-testi-author {
  font-family: var(--c3-font-sub);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c3-champagne);
  border-top: 1px solid var(--c3-border-subtle);
  padding-top: 0.85rem;
}

/* Comprehensive Footer */
.c3-footer {
  background: #050608;
  border-top: 1px solid var(--c3-border);
  padding: clamp(4rem, 7vw, 6rem) 0 2.5rem;
  color: var(--c3-text);
}

.c3-footer-logo {
  height: 38px;
  width: auto;
  filter: brightness(0) invert(1);
  margin-bottom: 1.25rem;
}

.c3-footer-tagline {
  font-size: 0.825rem;
  color: var(--c3-text-muted);
  line-height: 1.7;
  max-width: 320px;
}

.c3-footer-col-title {
  font-family: var(--c3-font-sub);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c3-champagne);
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.c3-footer-link {
  font-size: 0.84rem;
  color: var(--c3-text-muted);
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.c3-footer-link:hover {
  color: var(--c3-champagne-light);
  padding-left: 4px;
}

.c3-city-tag {
  background: rgba(209, 180, 106, 0.08);
  border: 1px solid var(--c3-border);
  color: var(--c3-champagne-light);
}

.c3-footer-bottom {
  border-top: 1px solid var(--c3-border-subtle);
  margin-top: clamp(2.5rem, 5vw, 4rem);
}

@media (max-width: 1280px) {
  .c3-nav-list {
    gap: 1rem;
    margin-right: 1rem;
  }
}

@media (max-width: 1024px) {
  .c3-nav-list,
  .c3-btn-vault {
    display: none;
  }
  .c3-hero-modules,
  .c3-bento-grid,
  .c3-testi-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .c3-models-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .c3-chivalry-banner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .c3-hero-modules,
  .c3-bento-grid,
  .c3-testi-grid,
  .c3-models-grid {
    grid-template-columns: 1fr;
  }
}