/* ==========================================================================
   PRIME AUTO EXPO - ULTRA LUXURY DESIGN SYSTEM (v4.0)
   Mercedes-AMG / Porsche / Geneva Motor Show Inspired Design System
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
  --bg-obsidian: #040406;
  --bg-card: rgba(14, 14, 20, 0.75);
  --bg-card-hover: rgba(22, 22, 32, 0.9);
  
  --gold-light: #FFF099;
  --gold-main: #D4AF37;
  --gold-dark: #8E7114;
  --gold-gradient: linear-gradient(135deg, #FFF099 0%, #D4AF37 50%, #A68316 100%);
  
  --silver-gradient: linear-gradient(135deg, #FFFFFF 0%, #C0C0C0 50%, #808080 100%);
  --red-accent: #E62521;
  --emerald-accent: #10B981;

  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-obsidian);
  color: #F3F4F6;
  overflow-x: hidden;
  position: relative;
}

h1, h2, h3, h4, h5, h6, .font-heading {
  font-family: var(--font-heading);
}

/* Ambient Radial Mesh Background Glow */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  height: 800px;
  background: radial-gradient(circle at 50% 0%, rgba(212, 175, 55, 0.12) 0%, rgba(7, 7, 9, 0) 70%);
  pointer-events: none;
  z-index: 0;
}

/* Gold Gradient Text */
.gold-text-gradient {
  background: var(--gold-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.silver-text-gradient {
  background: var(--silver-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

/* Luxury Glassmorphic Panels */
.glass-panel {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(212, 175, 55, 0.2);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.glass-panel:hover {
  border-color: rgba(212, 175, 55, 0.5);
  box-shadow: 0 25px 60px rgba(212, 175, 55, 0.15), 0 30px 70px rgba(0, 0, 0, 0.9);
}

.glass-card-static {
  background: rgba(18, 18, 26, 0.85);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Luxury Buttons */
.luxury-glow-btn {
  background: var(--gold-gradient);
  color: #000000;
  font-weight: 800;
  letter-spacing: 0.12em;
  position: relative;
  overflow: hidden;
  z-index: 1;
  transition: all 0.3s ease;
  box-shadow: 0 10px 30px rgba(212, 175, 55, 0.35);
}

.luxury-glow-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  transition: 0.5s;
}

.luxury-glow-btn:hover::before {
  left: 100%;
}

.luxury-glow-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 40px rgba(212, 175, 55, 0.6);
}

.luxury-outline-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(212, 175, 55, 0.4);
  color: #FFFFFF;
  transition: all 0.3s ease;
}

.luxury-outline-btn:hover {
  background: rgba(212, 175, 55, 0.15);
  border-color: var(--gold-main);
  color: var(--gold-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(212, 175, 55, 0.2);
}

/* Hero Overlay Vignette */
.hero-vignette {
  background: radial-gradient(circle at center, rgba(4, 4, 6, 0.4) 0%, rgba(4, 4, 6, 0.95) 100%);
}

/* Infinite Brand Marquee Slider */
.marquee-container {
  overflow: hidden;
  white-space: nowrap;
  position: relative;
  mask-image: linear-gradient(to right, transparent, black 15%, black 85%, transparent);
}

.marquee-track {
  display: inline-flex;
  animation: marquee 25s linear infinite;
}

.marquee-track:hover {
  animation-play-state: paused;
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #040406;
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, #D4AF37, #4A3A0B);
  border-radius: 4px;
}

/* Category Filter Active Pill Animation */
.cat-pill-btn.active {
  background: var(--gold-gradient) !important;
  color: #000000 !important;
  box-shadow: 0 0 25px rgba(212, 175, 55, 0.4) !important;
  font-weight: 800 !important;
}

/* FAQ Accordion Styling */
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out, opacity 0.4s ease-out;
  opacity: 0;
}
.faq-item.active .faq-answer {
  max-height: 200px;
  opacity: 1;
  margin-top: 1rem;
}
.faq-item.active .faq-icon {
  transform: rotate(180deg);
  color: var(--gold-main);
}