/* ==========================================================================
   CONCEPT 4: THE MONACO RIVIERA AZURE & PEARL
   Aesthetic: Mediterranean Yacht Club / Grand Côte d'Azur Glamour
   ========================================================================== */

:root {
  --c4-bg: #06121E;
  --c4-bg-alt: #091A2B;
  --c4-surface: #0E243A;
  --c4-card: #122C46;
  --c4-card-hover: #183858;
  --c4-bronze: #CCA45C;
  --c4-bronze-light: #E5C384;
  --c4-sand: #EAD7B7;
  --c4-pearl: #FCFBF7;
  --c4-text: #D5E1ED;
  --c4-text-muted: #8FAEC7;
  --c4-border: rgba(204, 164, 92, 0.25);
  --c4-border-subtle: rgba(255, 255, 255, 0.08);
  --c4-font-heading: 'Cinzel', Georgia, serif;
  --c4-font-sub: 'Tenor Sans', sans-serif;
  --c4-font-body: 'Montserrat', system-ui, sans-serif;
}

body.concept-4 {
  background-color: var(--c4-bg);
  color: var(--c4-text);
  font-family: var(--c4-font-body);
  font-size: var(--text-base);
  line-height: 1.75;
}

/* Header */
.c4-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-nav);
  background: rgba(6, 18, 30, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--c4-border);
  transition: all var(--transition-fast);
}

.c4-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: clamp(75px, 8.5vw, 92px);
  gap: clamp(1rem, 2vw, 2.5rem);
}

.c4-logo-img {
  height: clamp(32px, 3.5vw, 42px);
  width: auto;
  filter: brightness(0) invert(1);
}

.c4-nav-list {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 1.6vw, 1.8rem);
  white-space: nowrap !important;
}

.c4-nav-link {
  font-family: var(--c4-font-sub);
  font-size: 0.825rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c4-text-muted);
  transition: color var(--transition-fast);
  position: relative;
  padding: 4px 0;
  white-space: nowrap !important;
}
.c4-nav-link:hover {
  color: var(--c4-bronze-light);
}

.c4-btn-yacht {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  background: transparent;
  border: 1px solid var(--c4-bronze);
  color: var(--c4-sand);
  font-family: var(--c4-font-heading);
  font-size: 0.725rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border-radius: 9999px;
  white-space: nowrap !important;
  flex-shrink: 0;
  transition: all var(--transition-medium);
}
.c4-btn-yacht:hover {
  background: var(--c4-bronze);
  color: #06121E;
  box-shadow: 0 4px 20px rgba(204, 164, 92, 0.35);
}

/* Riviera Hero */
.c4-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: clamp(110px, 14vw, 150px);
  padding-bottom: clamp(60px, 8vw, 100px);
  background: linear-gradient(180deg, rgba(6, 18, 30, 0.7) 0%, rgba(6, 18, 30, 0.95) 100%), url('../images/Darling-Muse-Beautiful-Travel-Companion-Luxury-Travel-Escort-RSZv2.0.jpg') center/cover no-repeat;
  overflow: hidden;
}

.c4-hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  width: 100%;
}

.c4-compass-emblem {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--c4-font-sub);
  font-size: 0.75rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--c4-bronze-light);
  margin-bottom: var(--space-xs);
}

.c4-hero-title {
  font-family: var(--c4-font-heading);
  font-size: var(--text-hero);
  font-weight: 400;
  letter-spacing: 0.04em;
  line-height: 1.15;
  color: var(--c4-pearl);
  max-width: 1100px;
  margin: 0 auto var(--space-md);
  text-shadow: 0 4px 25px rgba(0,0,0,0.8);
}

/* 3 Riviera Cards */
.c4-hero-triptych {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.25rem, 2.5vw, 2.25rem);
  max-width: 1240px;
  margin: 0 auto;
}

.c4-riviera-card {
  background: var(--c4-surface);
  border: 1px solid var(--c4-border);
  border-radius: 10px;
  overflow: hidden;
  transition: all var(--transition-medium);
  display: flex;
  flex-direction: column;
  box-shadow: 0 16px 40px rgba(0,0,0,0.5);
}

.c4-riviera-card:hover {
  transform: translateY(-8px);
  border-color: var(--c4-bronze);
  box-shadow: 0 24px 50px rgba(0,0,0,0.8), 0 0 25px rgba(204, 164, 92, 0.2);
}

.c4-riviera-img-wrap {
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.c4-riviera-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.c4-riviera-card:hover .c4-riviera-img {
  transform: scale(1.08);
}

.c4-riviera-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  text-align: center;
}

.c4-riviera-btn {
  font-family: var(--c4-font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c4-sand);
  padding: 10px 0;
  border-bottom: 1px solid rgba(204, 164, 92, 0.3);
  transition: all var(--transition-fast);
}
.c4-riviera-card:hover .c4-riviera-btn {
  color: #FFFFFF;
  border-color: var(--c4-bronze);
}

/* Press Marquee */
.c4-press-section {
  padding: clamp(1.75rem, 3vw, 2.75rem) 0;
  background: var(--c4-bg-alt);
  border-top: 1px solid var(--c4-border);
  border-bottom: 1px solid var(--c4-border);
  text-align: center;
}

.c4-press-label {
  font-family: var(--c4-font-sub);
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c4-bronze);
  margin-bottom: 1.25rem;
}

.c4-press-img {
  max-width: min(880px, 90vw);
  margin: 0 auto;
  opacity: 0.85;
}

/* Models Salon */
.c4-section {
  padding: clamp(4.5rem, 8vw, 7.5rem) 0;
  border-bottom: 1px solid var(--c4-border);
}

.c4-section-head {
  text-align: center;
  max-width: 860px;
  margin: 0 auto clamp(2.5rem, 5vw, 4.5rem);
}

.c4-section-title {
  font-family: var(--c4-font-heading);
  font-size: var(--text-3xl);
  color: var(--c4-pearl);
  letter-spacing: 0.04em;
  margin-bottom: var(--space-xs);
}

.c4-lead-quote {
  font-family: var(--c4-font-sub);
  font-size: var(--text-base);
  color: var(--c4-text);
  line-height: 1.85;
  margin-top: 1rem;
}

.c4-models-yacht-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(1rem, 2vw, 2rem);
  margin-bottom: 3.5rem;
}

.c4-yacht-frame {
  background: var(--c4-card);
  border: 1px solid var(--c4-border);
  border-radius: 8px;
  overflow: hidden;
  transition: all var(--transition-medium);
  box-shadow: 0 12px 30px rgba(0,0,0,0.4);
}

.c4-yacht-frame:hover {
  transform: translateY(-8px);
  border-color: var(--c4-bronze);
  box-shadow: 0 20px 45px rgba(0,0,0,0.7), 0 0 20px rgba(204, 164, 92, 0.2);
}

.c4-yacht-img-wrap {
  aspect-ratio: 3 / 4;
  overflow: hidden;
}

.c4-yacht-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.c4-yacht-frame:hover .c4-yacht-img {
  transform: scale(1.06);
}

.c4-yacht-nameplate {
  padding: 1.25rem;
  text-align: center;
  border-top: 1px solid var(--c4-border);
  background: #0E243A;
}

.c4-yacht-model-name {
  font-family: var(--c4-font-heading);
  font-size: var(--text-md);
  color: var(--c4-pearl);
  letter-spacing: 0.05em;
}

/* Why We Are Different & Exceptional Talent Yachting Pavilions */
.c4-pavilions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.25rem, 2.5vw, 2.25rem);
}

.c4-pavilion-card {
  background: var(--c4-card);
  border: 1px solid var(--c4-border);
  border-radius: 8px;
  padding: clamp(1.75rem, 3vw, 2.5rem);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-medium);
}

.c4-pavilion-card:hover {
  background: var(--c4-card-hover);
  border-color: var(--c4-bronze-light);
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.6);
}

.c4-pavilion-tag {
  font-family: var(--c4-font-sub);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c4-bronze-light);
  margin-bottom: 1rem;
}

.c4-pavilion-title {
  font-family: var(--c4-font-heading);
  font-size: var(--text-lg);
  color: var(--c4-pearl);
  margin-bottom: 1rem;
  line-height: 1.35;
}

.c4-pavilion-text {
  color: var(--c4-text-muted);
  font-size: var(--text-sm);
  line-height: 1.8;
}

/* Call Us Old Fashioned Maritime Banner */
.c4-maritime-banner {
  background: linear-gradient(135deg, #0B2138 0%, #06121E 100%);
  border: 1px solid var(--c4-bronze);
  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;
}

.c4-maritime-title {
  font-family: var(--c4-font-heading);
  font-size: var(--text-2xl);
  color: var(--c4-pearl);
  margin-bottom: 1.25rem;
}

.c4-maritime-lead {
  font-family: var(--c4-font-sub);
  font-size: var(--text-base);
  color: var(--c4-sand);
  line-height: 1.8;
}

/* Riviera Testimonials */
.c4-traveler-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.25rem, 2.5vw, 2.25rem);
}

.c4-traveler-card {
  background: var(--c4-surface);
  border: 1px solid var(--c4-border);
  border-radius: 8px;
  padding: clamp(1.75rem, 3vw, 2.25rem);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-medium);
}

.c4-traveler-card:hover {
  transform: translateY(-5px);
  border-color: var(--c4-bronze);
  box-shadow: 0 16px 40px rgba(0,0,0,0.6);
}

.c4-traveler-title {
  font-family: var(--c4-font-heading);
  font-size: var(--text-md);
  color: var(--c4-pearl);
  margin-bottom: 0.85rem;
}

.c4-traveler-text {
  color: var(--c4-text-muted);
  font-size: var(--text-sm);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.c4-traveler-sig {
  font-family: var(--c4-font-sub);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c4-bronze-light);
  border-top: 1px solid var(--c4-border-subtle);
  padding-top: 0.85rem;
}

/* Footer */
/* Comprehensive Luxury Footer */
.c4-footer {
  background: #040C14;
  border-top: 1px solid var(--c4-border);
  padding: clamp(4rem, 7vw, 6rem) 0 2.5rem;
  color: var(--c4-text);
}

.c4-footer-logo {
  height: 38px;
  width: auto;
  filter: brightness(0) invert(1);
  margin-bottom: 1.25rem;
}

.c4-footer-tagline {
  font-size: 0.825rem;
  color: var(--c4-text-muted);
  line-height: 1.7;
  max-width: 320px;
}

.c4-footer-col-title {
  font-family: var(--c4-font-sub);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c4-bronze-light);
  margin-bottom: 1.25rem;
}

.c4-footer-link {
  font-size: 0.84rem;
  color: var(--c4-text-muted);
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.c4-footer-link:hover {
  color: var(--c4-sand);
  padding-left: 4px;
}

.c4-city-tag {
  background: rgba(204, 164, 92, 0.1);
  border: 1px solid var(--c4-border);
  color: var(--c4-sand);
}

.c4-footer-bottom {
  border-top: 1px solid var(--c4-border-subtle);
  margin-top: clamp(2.5rem, 5vw, 4rem);
}

@media (max-width: 1280px) {
  .c4-nav-list {
    gap: 1rem;
  }
  .c4-nav-link {
    font-size: 0.72rem;
  }
}

@media (max-width: 1024px) {
  .c4-nav-list,
  .c4-btn-yacht {
    display: none;
  }
  .c1-burger-btn {
    display: flex;
  }
  .c4-hero-triptych,
  .c4-pavilions-grid,
  .c4-traveler-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .c4-models-yacht-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .c4-maritime-banner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .c4-hero-triptych,
  .c4-pavilions-grid,
  .c4-traveler-grid,
  .c4-models-yacht-grid {
    grid-template-columns: 1fr;
  }
}