/*
 * JRB EMBALLAGES - Site Web Corporate
 * Thème: L'Élégance Parisienne - Luxury Packaging
 * Palette de couleurs haute couture inspirée des maisons de mode parisiennes
 * Conforme WCAG 2.1 AA
 */

/* ============================================
   COULEURS - THÈME L'ÉLÉGANCE PARISIENNE
   ============================================ */

/*
 * Thème Clair - Default
 * Inspiré par l'élégance discrète des maisons de haute couture parisiennes
 */
:root {
  /* Noir Profond - La base élégante */
  --color-deep-noir: #050505;

  /* Soie Ivoire - La pureté luxueuse */
  --color-ivory-silk: #F9F9F9;

  /* Or Royal - L'accent prestigieux */
  --color-royal-gold: #D4AF37;

  /* Blanc Pur - Fraîcheur */
  --color-white: #FFFFFF;

  /* Gris Perle - Subtilité */
  --color-pearl-gray: #E8E4E1;

  /* Gris Ardoise - Élégance */
  --color-slate-gray: #6B6B6B;

  /* Gris Charbon - Profondeur */
  --color-charcoal: #2C2C2C;

  /* Couleurs de texte avec contraste WCAG AA */
  --text-primary: #050505;
  --text-secondary: #2C2C2C;
  --text-light: #6B6B6B;
  --text-on-dark: #F9F9F9;

  /* Couleurs de fond */
  --bg-primary: #FFFFFF;
  --bg-secondary: #F9F9F9;
  --bg-tertiary: #E8E4E1;
  --bg-dark: #050505;

  /* Couleurs d'accent */
  --accent-gold: #D4AF37;
  --accent-gold-light: #E5C76B;
  --accent-gold-dark: #B8942E;

  /* Bordures */
  --border-light: #E8E4E1;
  --border-gold: #D4AF37;
  --border-dark: #050505;

  /* Ombres */
  --shadow-subtle: 0 2px 8px rgba(5, 5, 5, 0.05);
  --shadow-medium: 0 4px 16px rgba(5, 5, 5, 0.1);
  --shadow-large: 0 8px 32px rgba(5, 5, 5, 0.15);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-elegant: 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/*
 * Thème Sombre - Mode Nuit
 * Luxe nocturne parisien
 */
[data-theme="dark"] {
  --text-primary: #F9F9F9;
  --text-secondary: #E8E4E1;
  --text-light: #D4AF37;
  --text-on-dark: #050505;

  --bg-primary: #050505;
  --bg-secondary: #1A1A1A;
  --bg-tertiary: #2C2C2C;
  --bg-dark: #FFFFFF;

  --border-light: #2C2C2C;
  --border-gold: #D4AF37;
  --border-dark: #F9F9F9;

  --shadow-subtle: 0 2px 8px rgba(249, 249, 249, 0.05);
  --shadow-medium: 0 4px 16px rgba(249, 249, 249, 0.1);
  --shadow-large: 0 8px 32px rgba(249, 249, 249, 0.15);
}

/* ============================================
   TYPOGRAPHIE - POLICES PARISIENNES
   ============================================ */

/* Import des polices Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Didot&family=Playfair+Display:wght@400;500;600;700&family=Montserrat:wght@300;400;500;600;700&family=Lato:wght@300;400;700&display=swap');

/* Didot - Titres prestigieux (optionnel, fallback vers Playfair) */
.font-didot {
  font-family: 'Didot', 'Playfair Display', Georgia, serif;
}

/* Playfair Display - Titres élégants */
.font-playfair {
  font-family: 'Playfair Display', Georgia, serif;
}

/* Montserrat - En-têtes modernes */
.font-montserrat {
  font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Lato - Corps de texte */
.font-lato {
  font-family: 'Lato', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* ============================================
   RESET ET BASE
   ============================================ */

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: 'Lato', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  transition: background-color var(--transition-smooth), color var(--transition-smooth);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   ACCESSIBILITÉ
   ============================================ */

/* Focus visible pour navigation clavier */
:focus-visible {
  outline: 2px solid var(--accent-gold);
  outline-offset: 2px;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--accent-gold);
  color: var(--text-on-dark);
  padding: 8px 16px;
  z-index: 10000;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
}

/* Masquer visuellement mais garder accessible */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ============================================
   EN-TÊTE - HEADER L'ÉLÉGANCE
   ============================================ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: transparent;
  transition: background-color var(--transition-smooth), box-shadow var(--transition-smooth);
}

.site-header.scrolled {
  background: rgba(249, 249, 249, 0.98);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-subtle);
}

[data-theme="dark"] .site-header.scrolled {
  background: rgba(5, 5, 5, 0.98);
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.5rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.logo-container {
  flex-shrink: 0;
  animation: fadeInDown 0.8s var(--transition-elegant);
}

.logo-container img,
.logo-container svg {
  width: 232px;
  height: auto;
  max-height: 70px;
  object-fit: contain;
  transition: transform var(--transition-smooth);
}

.logo-container:hover img,
.logo-container:hover svg {
  transform: scale(1.02);
}

/* Navigation principale */
.main-nav {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-list {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 2.5rem;
}

.nav-item {
  animation: fadeIn 0.8s var(--transition-elegant) backwards;
}

.nav-item:nth-child(1) { animation-delay: 0.1s; }
.nav-item:nth-child(2) { animation-delay: 0.2s; }
.nav-item:nth-child(3) { animation-delay: 0.3s; }
.nav-item:nth-child(4) { animation-delay: 0.4s; }

.nav-link {
  position: relative;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-primary);
  text-decoration: none;
  padding: 0.5rem 0;
  transition: color var(--transition-fast);
}

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

.nav-link:hover {
  color: var(--accent-gold);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Actions header */
.header-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

/* Theme toggle */
.theme-toggle {
  position: relative;
  width: 44px;
  height: 44px;
  border: 0.5px solid var(--border-light);
  background: transparent;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  color: var(--text-primary);
}

.theme-toggle:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}

.theme-toggle .material-symbols-rounded {
  font-size: 1.25rem;
}

/* Mobile menu toggle */
.mobile-menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 0.5px solid var(--border-light);
  background: transparent;
  border-radius: 50%;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.mobile-menu-toggle:hover {
  border-color: var(--accent-gold);
}

.mobile-menu-toggle .material-symbols-rounded {
  font-size: 1.5rem;
  color: var(--text-primary);
}

/* Mobile menu overlay */
.mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-primary);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-smooth), visibility var(--transition-smooth);
}

.mobile-menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

.mobile-menu-close {
  position: absolute;
  top: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  border: none;
  background: transparent;
  cursor: pointer;
}

.mobile-menu-nav {
  text-align: center;
}

.mobile-menu-nav .nav-list {
  flex-direction: column;
  gap: 2rem;
}

.mobile-menu-nav .nav-link {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 2rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  text-transform: none;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.hero-background img,
.hero-background video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: blur(3px);
  transform: scale(1.05);
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  padding: 2rem;
  max-width: 900px;
  animation: fadeInUp 1s var(--transition-elegant);
}

.hero-title {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text-on-dark);
  margin-bottom: 1.5rem;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 300;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-on-dark);
  margin-bottom: 2.5rem;
  opacity: 0.95;
}

.hero-description {
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  color: var(--text-on-dark);
  margin-bottom: 2.5rem;
  opacity: 0.9;
}

/* Boutons élégants */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 2rem;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  border: 0.5px solid;
  border-radius: 0;
  cursor: pointer;
  transition: all var(--transition-smooth);
}

.btn-primary {
  background: var(--accent-gold);
  border-color: var(--accent-gold);
  color: var(--text-on-dark);
}

.btn-primary:hover {
  background: var(--accent-gold-dark);
  border-color: var(--accent-gold-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
}

.btn-secondary {
  background: transparent;
  border-color: var(--text-on-dark);
  color: var(--text-on-dark);
}

.btn-secondary:hover {
  background: var(--text-on-dark);
  color: var(--bg-primary);
  transform: translateY(-2px);
}

.hero-actions {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================
   SECTIONS
   ============================================ */

section {
  padding: 6rem 2rem;
}

.section-container {
  max-width: 1200px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.section-subtitle {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 1.5rem;
}

.section-description {
  font-size: 1.125rem;
  color: var(--text-light);
  max-width: 700px;
  margin: 0 auto;
}

/* Section avec fond image */
.section-with-bg {
  position: relative;
}

.section-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.section-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: blur(3px);
}

.section-content {
  position: relative;
  z-index: 10;
}

/* ============================================
   CARTES ET GRILLES
   ============================================ */

.grid {
  display: grid;
  gap: 2rem;
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.card {
  background: var(--bg-primary);
  border: 0.5px solid var(--border-light);
  padding: 2.5rem;
  transition: all var(--transition-smooth);
}

.card:hover {
  border-color: var(--accent-gold);
  box-shadow: var(--shadow-medium);
  transform: translateY(-4px);
}

.card-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--accent-gold);
}

.card-icon .material-symbols-rounded {
  font-size: 2.5rem;
}

.card-title {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.card-description {
  color: var(--text-light);
  line-height: 1.8;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent-gold);
  text-decoration: none;
  transition: gap var(--transition-fast);
}

.card-link:hover {
  gap: 1rem;
}

/* ============================================
   FORMULAIRES
   ============================================ */

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 1rem 1.25rem;
  font-family: 'Lato', sans-serif;
  font-size: 1rem;
  color: var(--text-primary);
  background: var(--bg-primary);
  border: 0.5px solid var(--border-light);
  border-radius: 0;
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

/* ============================================
   FOOTER
   ============================================ */

.site-footer {
  background: var(--bg-dark);
  color: var(--text-on-dark);
  padding: 5rem 2rem 2rem;
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-brand .logo-text {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.75rem;
  font-weight: 400;
  color: var(--text-on-dark);
  margin-bottom: 1rem;
}

.footer-brand p {
  color: rgba(249, 249, 249, 0.7);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.footer-title {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 1.5rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: rgba(249, 249, 249, 0.8);
  text-decoration: none;
  font-size: 0.9375rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--accent-gold);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1rem;
  color: rgba(249, 249, 249, 0.8);
  font-size: 0.9375rem;
}

.footer-contact-item .material-symbols-rounded {
  color: var(--accent-gold);
  font-size: 1.25rem;
  flex-shrink: 0;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 0.5px solid rgba(249, 249, 249, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p {
  color: rgba(249, 249, 249, 0.6);
  font-size: 0.875rem;
}

.footer-legal-links {
  display: flex;
  gap: 2rem;
}

.footer-legal-links a {
  color: rgba(249, 249, 249, 0.6);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color var(--transition-fast);
}

.footer-legal-links a:hover {
  color: var(--accent-gold);
}

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

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--transition-elegant), transform 0.8s var(--transition-elegant);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

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

@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  .header-container {
    padding: 1rem 1.5rem;
  }

  .main-nav {
    display: none;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .nav-list {
    gap: 1.5rem;
  }

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .grid-4 {
    grid-template-columns: 1fr;
  }

  section {
    padding: 4rem 1.5rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

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

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }

  .hero-title {
    font-size: 2rem;
  }

  .card {
    padding: 2rem 1.5rem;
  }
}

/* ============================================
   UTILITAIRES
   ============================================ */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 2.5rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 2.5rem; }

/* Parallax effect */
.parallax {
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

/* Micro-interactions */
.hover-lift {
  transition: transform var(--transition-smooth);
}

.hover-lift:hover {
  transform: translateY(-8px);
}

.hover-glow {
  transition: box-shadow var(--transition-smooth);
}

.hover-glow:hover {
  box-shadow: 0 0 30px rgba(212, 175, 55, 0.3);
}

/* Image avec blur */
.image-blur {
  filter: blur(3px);
}

/* Conteneur d'images optimisé */
.img-container {
  position: relative;
  overflow: hidden;
}

.img-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-smooth);
}

.img-container:hover img {
  transform: scale(1.05);
}