/* ============================================
   SIR DRIVER - ANIMATIONS & MICRO-INTERACTIONS PREMIUM
   ============================================ */

/* Variables */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;500;600;700;800&family=Inter:wght@300;400;500;600;700;800&family=Cormorant+Garamond:wght@300;400;500;600;700&display=swap');

:root {
  /* Palette */
  --noir-profond: #0a0a0a;
  --noir-elegance: #1a1a1a;
  --gris-anthracite: #2a2a2a;
  --gris-luxe: #3a3a3a;
  --gris-subtil: #f5f5f5;
  --blanc-casse: #fafafa;
  --blanc-pur: #ffffff;

  /* Or */
  --or-principal: #d4af37;
  --or-clair: #e8c968;
  --or-fonce: #b8941f;
  --or-gradient: linear-gradient(135deg, #d4af37 0%, #e8c968 100%);
  --or-gradient-reverse: linear-gradient(135deg, #e8c968 0%, #d4af37 100%);
  --or-radial: radial-gradient(circle, #e8c968 0%, #d4af37 100%);

  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-blur: blur(20px);

  /* Ombres */
  --shadow-subtle: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-soft: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-medium: 0 8px 32px rgba(0, 0, 0, 0.12);
  --shadow-strong: 0 16px 48px rgba(0, 0, 0, 0.16);
  --shadow-gold: 0 8px 32px rgba(212, 175, 55, 0.3);
  --shadow-gold-glow: 0 0 40px rgba(212, 175, 55, 0.4);

  /* Transitions */
  --ease-luxury: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-smooth: cubic-bezier(0.25, 0.1, 0.25, 1);
  --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  --ease-elastic: cubic-bezier(0.68, -0.55, 0.265, 1.55);

  /* Durées */
  --duration-instant: 150ms;
  --duration-fast: 250ms;
  --duration-normal: 350ms;
  --duration-slow: 500ms;
  --duration-slower: 750ms;
}

/* ============================================
   TYPOGRAPHIES
   ============================================ */

body {
  font-family:
    'Inter',
    -apple-system,
    BlinkMacSystemFont,
    sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.6;
  color: var(--noir-profond);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Titres */
h1,
.h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

h2,
.h2 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin-bottom: 1.25rem;
}

h3,
.h3 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 1rem;
}

h4,
.h4 {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 0.875rem;
}

/* Body text */

/* Poids */

/* ============================================
   HERO ANIMÉ
   ============================================ */

.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  color: var(--blanc-pur);
  padding: 0 2rem;
  max-width: 1000px;
  transform: translateZ(0);
  will-change: transform;
}

.hero-subtitle {
  opacity: 0;
  transform: translateY(40px);
  animation: heroSubtitleAppear 1s var(--ease-luxury) 0.6s forwards;
  font-size: 1.5rem;
  font-weight: 300;
  margin-bottom: 3rem;
  color: rgba(255, 255, 255, 0.95);
  letter-spacing: 0.02em;
}

@keyframes heroTitleAppear {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes heroSubtitleAppear {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes heroCTAAppear {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Glassmorphism */

/* ============================================
   TRANSITIONS DE PAGES
   ============================================ */

.page-transition {
  position: fixed;
  inset: 0;
  background: linear-gradient(
    135deg,
    var(--or-principal) 0%,
    #daa520 50%,
    var(--or-principal) 100%
  );
  z-index: 9999;
  pointer-events: none;
  animation: pageTransitionSlide 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes pageTransitionSlide {
  0% {
    transform: translateX(-100%);
    opacity: 1;
  }
  50% {
    opacity: 1;
  }
  100% {
    transform: translateX(100%);
    opacity: 0;
  }
}

.page-transition-overlay {
  position: absolute;
  inset: 0;
  background: var(--or-gradient);
  transform: translateX(-100%);
  transition: transform 0.6s var(--ease-luxury);
}

body.transitioning .page-transition-overlay {
  transform: translateX(0);
}

.fade-transition {
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-luxury);
}

.fade-transition.active {
  opacity: 1;
}

/* ============================================
   CARTES VÉHICULES
   ============================================ */

.vehicle-card-luxury {
  position: relative;
  background: var(--blanc-pur);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: all var(--duration-normal) var(--ease-luxury);
  cursor: pointer;
}

.vehicle-card-luxury::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--or-gradient);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-luxury);
  z-index: 0;
}

.vehicle-card-luxury:hover {
  transform: translateY(-12px) scale(1.02);
  box-shadow: var(--shadow-gold-glow);
}

.vehicle-card-luxury:hover::before {
  opacity: 0.05;
}

/* ============================================
   LOADING & SKELETON
   ============================================ */

.skeleton {
  background: linear-gradient(
    90deg,
    var(--gris-subtil) 0%,
    var(--blanc-casse) 50%,
    var(--gris-subtil) 100%
  );
  background-size: 200% 100%;
  animation: skeletonShimmer 1.5s ease-in-out infinite;
  border-radius: 8px;
}

@keyframes skeletonShimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

.loading-premium {
  position: fixed;
  inset: 0;
  background: var(--noir-profond);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  opacity: 1;
  transition: opacity var(--duration-slow) var(--ease-luxury);
}

.loading-premium.hidden {
  opacity: 0;
  pointer-events: none;
}

.loading-logo {
  margin-bottom: 2rem;
  animation: logoFloat 2s ease-in-out infinite;
}

.loading-logo-img {
  height: 80px; /* taille idéale pour un écran de loading */
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 4px 15px rgba(212, 175, 55, 0.4));
}

@keyframes logoFloat {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
}

.loading-bar-container {
  width: 300px;
  height: 4px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  overflow: hidden;
}

.loading-bar {
  height: 100%;
  background: var(--or-gradient);
  width: 0;
  animation: loadingProgress 2s ease-in-out infinite;
  box-shadow: 0 0 20px rgba(212, 175, 55, 0.5);
}

@keyframes loadingProgress {
  0% {
    width: 0;
  }
  50% {
    width: 70%;
  }
  100% {
    width: 100%;
  }
}

/* ============================================
   SMOOTH SCROLL
   ============================================ */

html {
  scroll-behavior: smooth;
}

.scroll-reveal {
  opacity: 0;
  transform: translateY(60px);
  transition: all 0.8s var(--ease-luxury);
}

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

.scroll-reveal-left {
  opacity: 0;
  transform: translateX(-60px);
  transition: all 0.8s var(--ease-luxury);
}

.scroll-reveal-left.revealed {
  opacity: 1;
  transform: translateX(0);
}

.scroll-reveal-right {
  opacity: 0;
  transform: translateX(60px);
  transition: all 0.8s var(--ease-luxury);
}

.scroll-reveal-right.revealed {
  opacity: 1;
  transform: translateX(0);
}

.scroll-reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: all 0.8s var(--ease-luxury);
}

.scroll-reveal-scale.revealed {
  opacity: 1;
  transform: scale(1);
}

/* ============================================
   BOUTONS & INPUTS
   ============================================ */

.btn-premium {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  background: var(--or-gradient);
  color: var(--noir-profond);
  border: none;
  padding: 1.25rem 3rem;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-luxury);
  box-shadow: var(--shadow-gold);
}

.btn-premium::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--or-gradient-reverse);
  opacity: 0;
  transition: opacity var(--duration-fast) var(--ease-luxury);
  z-index: -1;
}

.btn-premium:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-gold-glow);
}

.btn-premium:hover::before {
  opacity: 1;
}

.btn-premium:active {
  transform: translateY(-2px);
}

.btn-premium .ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  transform: scale(0);
  animation: rippleEffect 0.6s ease-out;
  pointer-events: none;
}

@keyframes rippleEffect {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

.card-levitate {
  transition: all var(--duration-normal) var(--ease-luxury);
}

.card-levitate:hover {
  transform: translateY(-12px);
  box-shadow: var(--shadow-strong);
}

/* ============================================
   ANIMATIONS SÉQUENTIELLES
   ============================================ */

.stagger-animation > * {
  opacity: 0;
  transform: translateY(30px);
}

.stagger-animation.active > *:nth-child(1) {
  animation: staggerFadeIn 0.6s var(--ease-luxury) 0.1s forwards;
}
.stagger-animation.active > *:nth-child(2) {
  animation: staggerFadeIn 0.6s var(--ease-luxury) 0.2s forwards;
}
.stagger-animation.active > *:nth-child(3) {
  animation: staggerFadeIn 0.6s var(--ease-luxury) 0.3s forwards;
}
.stagger-animation.active > *:nth-child(4) {
  animation: staggerFadeIn 0.6s var(--ease-luxury) 0.4s forwards;
}
.stagger-animation.active > *:nth-child(5) {
  animation: staggerFadeIn 0.6s var(--ease-luxury) 0.5s forwards;
}
.stagger-animation.active > *:nth-child(6) {
  animation: staggerFadeIn 0.6s var(--ease-luxury) 0.6s forwards;
}

@keyframes staggerFadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 968px) {
  .vehicle-card-luxury:hover {
    transform: translateY(-8px) scale(1.01);
  }
}

@media (max-width: 640px) {
  .btn-premium {
    padding: 1rem 2rem;
    font-size: 0.875rem;
  }
}