/**
 * SOLUPREST - Feuille de styles principale
 * Version: 2.0 - Optimisée
 * 
 * Table des matières:
 * 1. Variables & Reset
 * 2. Base & Typography
 * 3. Header & Navigation
 * 4. Hero
 * 5. Partners Banner
 * 6. Sections (common)
 * 7. Engagement
 * 8. Solutions
 * 9. News Slider
 * 10. References
 * 11. Contact
 * 12. Footer
 * 13. Components
 * 14. Animations
 * 15. Responsive
 */

/* ==========================================================================
   1. VARIABLES & RESET
   ========================================================================== */
:root {
  /* Couleurs principales */
  --cyan: #3CBFEB;
  --cyan-light: #8AD8F4;
  --cyan-dark: #2AA8D4;
  --anthracite: #3D4543;
  --anthracite-light: #5A5F5D;
  --white: #FFFFFF;
  --gray-light: #F5F7F9;
  --gray: #6B7280;
  --gray-dark: #4B5563;
  
  /* Couleurs sections (charte graphique officielle) */
  --solutions-color: #fbaf43;
  --solutions-light: #fed39b;
  --solutions-dark: #e99a2d;
  
  --produits-color: #12b29b;
  --produits-light: #9cd2c6;
  --produits-dark: #0e9a86;
  
  --societe-color: #25aae0;
  --societe-light: #9fceed;
  --societe-dark: #1a8fc0;
  
  --contact-color: #905b8d;
  --contact-light: #bd9fbb;
  --contact-dark: #7a4d77;
  
  --actu-color: #ef5c80;
  --actu-color-light: #f499ae;
  --actu-color-dark: #d94368;
  
  --references-color: #8bc543;
  --references-light: #c3de9b;
  --references-dark: #75a838;
  
  /* Transitions */
  --t-fast: .3s ease;
  --t-medium: .5s ease;
  --t-slow: .8s ease;
}

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

/* ==========================================================================
   2. BASE & TYPOGRAPHY
   ========================================================================== */
body {
  font-family: 'Barlow', sans-serif;
  background: var(--white);
  color: var(--anthracite);
  overflow-x: hidden;
  line-height: 1.6;
}

.section-label {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--cyan);
  margin-bottom: 12px;
}

.section-title {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 42px;
  font-weight: 700;
  color: var(--anthracite);
}

/* ==========================================================================
   3. HEADER & NAVIGATION
   ========================================================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 80px;
  background: var(--white);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 60px;
  z-index: 1000;
  box-shadow: 0 2px 20px rgba(0,0,0,.06);
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  text-decoration: none;
  transition: transform var(--t-fast);
}
.logo:hover {
  transform: scale(1.25);
}
.logo-icon {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  grid-template-rows: repeat(5, 1fr);
  gap: 2px;
  width: 42px;
  height: 42px;
}

.logo-icon span { transition: all var(--t-fast); }
.logo-icon .dot { background: var(--cyan); border-radius: 50%; }
.logo-icon .square { background: var(--anthracite); border-radius: 2px; }
.logo:hover .logo-icon .dot { border-radius: 2px; }
.logo:hover .logo-icon .square { border-radius: 50%; }

.logo-text {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 1px;
  display: flex;
}

.logo-text .solu { color: var(--cyan); }
.logo-text .prest { color: var(--anthracite); }

/* Navigation */
.nav {
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav a {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 15px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--anthracite);
  text-decoration: none;
  position: relative;
  padding: 8px 0;
  transition: color var(--t-fast);
}

.nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--cyan);
  transition: width var(--t-fast);
}

.nav a:hover,
.nav a.active { color: var(--cyan); }

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

/* Header Right */
.header-right {
  display: flex;
  align-items: center;
  gap: 24px;
}

.header-phone {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--anthracite);
  transition: color var(--t-fast);
}

.header-phone:hover { color: var(--cyan); }

.header-phone-icon {
  width: 36px;
  height: 36px;
  background: rgba(60,191,235,.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: all var(--t-fast);
}

.header-phone:hover .header-phone-icon {
  background: var(--cyan);
  color: var(--white);
}

.header-phone-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.header-phone-label {
  font-size: 11px;
  color: var(--gray);
  text-transform: uppercase;
  letter-spacing: .5px;
}

.header-phone-number {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 18px;
  font-weight: 600;
  color: var(--anthracite);
}

.header-phone:hover .header-phone-number { color: var(--cyan); }

/* ==========================================================================
   4. HERO
   ========================================================================== */
.hero {
  margin-top: 80px;
  min-height: calc(100vh - 80px);
  display: flex;
  align-items: center;
  padding: 60px;
  position: relative;
  overflow: hidden;
  background: var(--anthracite);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../assets/images/bg-ordi.jpg') center center / cover no-repeat;
  opacity: 0.4;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(61, 69, 67, 0.85) 0%, rgba(37, 170, 224, 0.3) 100%);
}

.hero-bg-pattern {
  position: absolute;
  right: -50px;
  top: 50%;
  transform: translateY(-50%);
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  grid-template-rows: repeat(8, 1fr);
  gap: 12px;
  opacity: .3;
  z-index: 5;
}

.hero-bg-pattern span {
  width: 24px;
  height: 24px;
  transition: all var(--t-fast);
}

.hero-bg-pattern .dot {
  background: var(--cyan-light);
  border-radius: 50%;
}

.hero-bg-pattern .square {
  background: var(--white);
  border-radius: 3px;
}

.hero:hover .hero-bg-pattern .dot {
  border-radius: 3px;
}

.hero:hover .hero-bg-pattern .square {
  border-radius: 50%;
}



.hero-content {
  max-width: 650px;
  position: relative;
  z-index: 10;
  animation: fadeInUp 1s ease forwards;
}

.hero-badge {
  display: inline-block;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--white);
  background: rgba(60,191,235,.25);
  padding: 8px 16px;
  margin-bottom: 24px;
  opacity: 0;
  animation: fadeInUp 1s ease .2s forwards;
}

.hero-title {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 64px;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 24px;
  color: var(--white);
  opacity: 0;
  animation: fadeInUp 1s ease .4s forwards;
}

.hero-title span { color: var(--cyan); }

.hero-subtitle {
  font-size: 18px;
  font-weight: 400;
  color: rgba(255,255,255,0.85);
  line-height: 1.7;
  margin-bottom: 40px;
  opacity: 0;
  animation: fadeInUp 1s ease .6s forwards;
}

.hero-cta {
  display: flex;
  gap: 16px;
  opacity: 0;
  animation: fadeInUp 1s ease .8s forwards;
}

/* ==========================================================================
   5. PARTNERS BANNER
   ========================================================================== */
.partners-banner {
  background: var(--white);
  padding: 40px 0;
  border-top: 1px solid var(--gray-light);
  border-bottom: 1px solid var(--gray-light);
  overflow: hidden;
}

.partners-label {
  text-align: center;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--gray);
  margin-bottom: 24px;
}

.partners-track {
  display: flex;
  animation: scroll 30s linear infinite;
  width: fit-content;
}

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

.partner-logo {
  flex-shrink: 0;
  height: 40px;
  margin: 0 40px;
  opacity: .6;
  filter: grayscale(100%);
  transition: all var(--t-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 16px;
  font-weight: 600;
  color: var(--gray);
  padding: 0 20px;
  border: 1px solid var(--gray-light);
  border-radius: 4px;
  background: var(--white);
}

.partner-logo:hover {
  opacity: 1;
  filter: grayscale(0%);
  color: var(--cyan);
  border-color: var(--cyan);
}

/* ==========================================================================
   6. SECTIONS (common)
   ========================================================================== */
.section {
  padding: 100px 60px;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-picto {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  grid-template-rows: repeat(9, 1fr);
  gap: 2px;
  width: 48px;
  height: 54px;
  margin: 0 auto 16px;
}

.section-picto span {
  transition: all var(--t-fast);
}

.section-picto .dot {
  background: var(--cyan-light);
  border-radius: 50%;
}

.section-picto .square {
  background: var(--anthracite);
  border-radius: 2px;
}

.section-header:hover .section-picto span.dot { border-radius: 2px; }
.section-header:hover .section-picto span.square { border-radius: 50%; }

/* ==========================================================================
   7. ENGAGEMENT
   ========================================================================== */
.engagement-section {
  background: var(--white);
  padding: 80px 60px;
}

.engagement-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.engagement-content .section-label {
  color: var(--cyan);
  text-align: left;
}

.engagement-content .section-title {
  text-align: left;
  margin-bottom: 20px;
}

.engagement-text {
  font-size: 16px;
  color: var(--gray-dark);
  line-height: 1.8;
  margin-bottom: 24px;
}

.engagement-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.keyword {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 10px 20px;
  background: rgba(60,191,235,.1);
  color: var(--cyan);
  border-radius: 4px;
  transition: all var(--t-fast);
}

.keyword:hover {
  background: var(--cyan);
  color: var(--white);
}

.engagement-services {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.service-item {
  display: flex;
  gap: 20px;
  padding: 24px;
  background: var(--gray-light);
  border-radius: 4px;
  transition: all var(--t-fast);
}

.service-item:hover {
  transform: translateX(8px);
  box-shadow: 0 8px 24px rgba(0,0,0,.06);
}

.service-number {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 32px;
  font-weight: 700;
  color: var(--cyan);
  line-height: 1;
}

.service-content h3 {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 20px;
  font-weight: 600;
  color: var(--anthracite);
  margin-bottom: 6px;
}

.service-content p {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.6;
}

/* ==========================================================================
   8. SOLUTIONS
   ========================================================================== */
.solutions-section {
  background: var(--gray-light);
}

.solutions-section .section-label { color: var(--solutions-color); }
.solutions-section .section-picto .dot { background: var(--solutions-light); }
.solutions-section .section-picto .square { background: var(--anthracite); border-radius: 3px; }

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto;
}

.solution-card {
  background: var(--white);
  padding: 40px 32px;
  border-radius: 4px;
  transition: all .4s ease;
  position: relative;
  overflow: hidden;
  border: 1px solid transparent;
}

.solution-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--solutions-color);
  transform: scaleX(0);
  transition: transform .4s ease;
}

.solution-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0,0,0,.08);
  border-color: rgba(124,179,66,.3);
}

.solution-card:hover::before { transform: scaleX(1); }

.solution-icon {
  width: 48px;
  height: 48px;
  background: rgba(124,179,66,.1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 24px;
}

.solution-card h3 {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--anthracite);
}

.solution-card p {
  font-size: 15px;
  color: var(--gray);
  line-height: 1.7;
}

/* ==========================================================================
   9. NEWS SLIDER
   ========================================================================== */
.news-section {
  background: var(--white);
}

.news-section .section-label { color: var(--actu-color); }
.news-section .section-picto .dot { background: var(--actu-color-light); }
.news-section .section-picto .square { background: var(--anthracite); border-radius: 3px; }

.news-slider {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
}

.news-slider-wrapper { overflow: hidden; }

.news-track {
  display: flex;
  transition: transform var(--t-medium);
  padding: 20px 0;
}

.news-card {
  flex: 0 0 calc(33.333% - 16px);
  margin: 0 12px;
  background: var(--white);
  border: 1px solid var(--gray-light);
  border-radius: 4px;
  overflow: hidden;
  transition: all var(--t-fast);
}

.news-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0,0,0,.08);
  border-color: var(--actu-color);
}

.news-image {
  height: 160px;
  background: linear-gradient(135deg, var(--actu-color) 0%, var(--actu-color-dark) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 42px;
  font-weight: 700;
  position: relative;
  overflow: hidden;
}

.news-image::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,.1) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--t-fast);
}

.news-card:hover .news-image::before { opacity: 1; }

.news-content { padding: 24px; }

.news-date {
  font-size: 12px;
  color: var(--actu-color);
  font-weight: 600;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.news-title {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 20px;
  font-weight: 600;
  color: var(--anthracite);
  margin-bottom: 12px;
  line-height: 1.3;
}

.news-excerpt {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.6;
}

.news-link {
  display: inline-block;
  margin-top: 16px;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--actu-color);
  text-decoration: none;
  transition: color var(--t-fast);
}

.news-link:hover { color: var(--anthracite); }
.news-link::after { content: ' →'; }

/* Slider Controls */
.slider-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 32px;
}

.slider-btn {
  width: 48px;
  height: 48px;
  border: 2px solid var(--gray-light);
  background: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--t-fast);
  font-size: 20px;
  color: var(--anthracite);
}

.slider-btn:hover {
  border-color: var(--actu-color);
  color: var(--actu-color);
  transform: scale(1.05);
}

.slider-btn:active { transform: scale(.95); }

.slider-dots {
  display: flex;
  gap: 8px;
}

.slider-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gray-light);
  cursor: pointer;
  transition: all var(--t-fast);
}

.slider-dot.active {
  background: var(--actu-color);
  transform: scale(1.2);
}

.slider-dot:hover { background: var(--actu-color-light); }

.news-cta {
  text-align: center;
  margin-top: 48px;
}

/* ==========================================================================
   10. REFERENCES
   ========================================================================== */
.references-section {
  background: var(--anthracite);
  color: var(--white);
}

.references-section .section-label { color: var(--references-light); }
.references-section .section-title { color: var(--white); }
.references-section .section-picto .dot { background: var(--references-light); }
.references-section .section-picto .square { background: var(--white); border-radius: 3px; }

.references-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
}

.reference-logo {
  background: rgba(255,255,255,.08);
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: all var(--t-fast);
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255,255,255,.7);
  text-align: center;
  padding: 16px;
}

.reference-logo:hover {
  background: rgba(236,64,122,.2);
  transform: scale(1.03);
  color: var(--white);
}

/* ==========================================================================
   11. CONTACT
   ========================================================================== */
.contact-section {
  background: var(--gray-light);
}

.contact-section .section-label { color: var(--contact-color); }
.contact-section .section-picto .dot { background: var(--contact-light); }
.contact-section .section-picto .square { background: var(--anthracite); border-radius: 3px; }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  max-width: 1100px;
  margin: 0 auto;
}

.contact-info h3 {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 32px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--anthracite);
}

.contact-info p {
  font-size: 16px;
  color: var(--gray);
  line-height: 1.8;
  margin-bottom: 32px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
}

.contact-item-icon {
  width: 48px;
  height: 48px;
  background: var(--contact-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 18px;
  flex-shrink: 0;
}

.contact-item-text {
  font-size: 16px;
  color: var(--anthracite);
}

.contact-form {
  background: var(--white);
  padding: 40px;
  border-radius: 4px;
  box-shadow: 0 10px 40px rgba(0,0,0,.06);
}

.form-group { margin-bottom: 24px; }

.form-group label {
  display: block;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--anthracite);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  border: 2px solid var(--gray-light);
  border-radius: 4px;
  font-family: 'Barlow', sans-serif;
  font-size: 15px;
  transition: border-color var(--t-fast);
  background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--contact-color);
}

.form-group textarea {
  height: 120px;
  resize: none;
}

.contact-section .btn-submit { background: var(--contact-color); }
.contact-section .btn-submit:hover { background: var(--anthracite); }

/* ==========================================================================
   12. FOOTER
   ========================================================================== */
.footer {
  background: var(--anthracite);
  color: var(--white);
  padding: 60px;
  position: relative;
  overflow: hidden;
}

.footer-pattern {
  position: absolute;
  bottom: -30px;
  right: -30px;
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  grid-template-rows: repeat(8, 1fr);
  gap: 8px;
  opacity: .12;
  transform: rotate(-15deg);
}

.footer-pattern span {
  width: 18px;
  height: 18px;
  transition: all var(--t-fast);
}

.footer-pattern .dot { background: var(--cyan); border-radius: 50%; }
.footer-pattern .square { background: var(--cyan-light); border-radius: 3px; }
.footer-pattern .dot-light { background: var(--cyan); border-radius: 50%; opacity: .5; }

.footer:hover .footer-pattern { opacity: .18; }
.footer:hover .footer-pattern .dot { border-radius: 3px; }
.footer:hover .footer-pattern .square { border-radius: 50%; }

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  max-width: 1200px;
  margin: 0 auto;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,.1);
  position: relative;
  z-index: 1;
}

.footer-brand .logo-text {
  font-size: 24px;
  margin-bottom: 12px;
}

.footer-brand .solu { color: var(--cyan); }
.footer-brand .prest { color: var(--white); }

.footer-tagline {
  font-size: 14px;
  color: rgba(255,255,255,.6);
  max-width: 280px;
  line-height: 1.6;
}

.footer-phone {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 18px;
  font-weight: 600;
  color: var(--cyan);
  margin-top: 16px;
}

.footer-links {
  display: flex;
  gap: 60px;
}

.footer-col h4 {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--white);
  margin-bottom: 20px;
}

.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 12px; }

.footer-col a {
  color: rgba(255,255,255,.6);
  text-decoration: none;
  font-size: 14px;
  transition: color var(--t-fast);
}

.footer-col a:hover { color: var(--cyan); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 24px;
  position: relative;
  z-index: 1;
}

.footer-copy {
  font-size: 13px;
  color: rgba(255,255,255,.5);
}

.footer-legal a {
  font-size: 13px;
  color: rgba(255,255,255,.5);
  text-decoration: none;
  margin-left: 24px;
  transition: color var(--t-fast);
}

.footer-legal a:hover { color: var(--cyan); }

/* ==========================================================================
   13. COMPONENTS
   ========================================================================== */

/* Buttons */
.btn {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 15px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  padding: 16px 32px;
  border: none;
  cursor: pointer;
  transition: all var(--t-fast);
}

.btn-primary {
  background: var(--cyan);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--anthracite);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(60,191,235,.25);
}

.btn-secondary {
  background: transparent;
  color: var(--anthracite);
  border: 2px solid var(--anthracite);
}

.btn-secondary:hover {
  background: var(--anthracite);
  color: var(--white);
}

/* Bouton secondaire sur fond sombre (hero) */
.hero .btn-secondary {
  color: var(--white);
  border-color: var(--white);
}

.hero .btn-secondary:hover {
  background: var(--white);
  color: var(--anthracite);
}

.btn-contact-header {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 12px 24px;
  background: var(--cyan);
  color: var(--white);
  border: none;
  cursor: pointer;
  transition: all var(--t-fast);
}

.btn-contact-header:hover {
  background: var(--anthracite);
  transform: translateY(-2px);
}

.btn-news {
  display: inline-block;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 15px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  padding: 16px 40px;
  background: transparent;
  color: var(--anthracite);
  border: 2px solid var(--anthracite);
  cursor: pointer;
  transition: all var(--t-fast);
  text-decoration: none;
}

.btn-news:hover {
  background: var(--anthracite);
  color: var(--white);
  transform: translateY(-2px);
}

.btn-submit { width: 100%; }

/* Support Button */
.support-btn {
  position: fixed;
  right: 14px;
  top: 50%;
  transform: translateY(-50%) rotate(-90deg) translateX(50%);
  transform-origin: right center;
  background: var(--cyan);
  color: var(--white);
  padding: 12px 28px;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  text-decoration: none;
  border-radius: 4px 4px 0 0;
  box-shadow: -2px 0 15px rgba(60,191,235,.3);
  z-index: 999;
  transition: all var(--t-fast);
  display: flex;
  align-items: center;
  gap: 8px;
}

.support-btn:hover {
  background: var(--anthracite);
  padding-right: 36px;
  box-shadow: -2px 0 20px rgba(0,0,0,.3);
}

.support-btn-icon { font-size: 16px; }

/* ==========================================================================
   14. ANIMATIONS
   ========================================================================== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); opacity: .4; }
  50% { transform: translateY(-10px); opacity: .7; }
}

@keyframes patternAppear {
  from { opacity: 0; transform: scale(0); }
  to { opacity: 1; transform: scale(1); }
}

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

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity var(--t-slow), transform var(--t-slow);
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity var(--t-slow), transform var(--t-slow);
}

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

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity var(--t-slow), transform var(--t-slow);
}

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

.reveal-scale {
  opacity: 0;
  transform: scale(.9);
  transition: opacity var(--t-slow), transform var(--t-slow);
}

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

/* Delays */
.reveal-delay-1 { transition-delay: .1s; }
.reveal-delay-2 { transition-delay: .2s; }
.reveal-delay-3 { transition-delay: .3s; }
.reveal-delay-4 { transition-delay: .4s; }
.reveal-delay-5 { transition-delay: .5s; }
.reveal-delay-6 { transition-delay: .6s; }

/* Hero pattern animation */
.hero-bg-pattern span {
  opacity: 0;
  animation: patternAppear .5s ease forwards, float 4s ease-in-out .5s infinite;
}

/* ==========================================================================
   MENU MOBILE
   ========================================================================== */

/* Bouton Hamburger */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1002;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--anthracite);
  margin: 3px 0;
  transition: all var(--t-fast);
  border-radius: 2px;
}

/* Hamburger animé en X quand ouvert */
.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Menu Mobile Overlay */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--white);
  z-index: 1001;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--t-fast);
}

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

/* Navigation Mobile */
.mobile-nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.mobile-nav a {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 28px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--anthracite);
  text-decoration: none;
  padding: 12px 24px;
  transition: all var(--t-fast);
  position: relative;
}

.mobile-nav a::after {
  content: '';
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 3px;
  background: var(--cyan);
  transition: width var(--t-fast);
}

.mobile-nav a:hover,
.mobile-nav a.active {
  color: var(--cyan);
}

.mobile-nav a:hover::after,
.mobile-nav a.active::after {
  width: 40px;
}

/* Footer du menu mobile */
.mobile-menu-footer {
  margin-top: 48px;
  text-align: center;
}

.mobile-phone {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 22px;
  font-weight: 600;
  color: var(--cyan);
  text-decoration: none;
  margin-bottom: 12px;
}

.mobile-phone:hover {
  color: var(--anthracite);
}

.mobile-menu-footer p {
  font-size: 14px;
  color: var(--gray);
}

/* Body lock quand menu ouvert */
body.menu-open {
  overflow: hidden;
}



/* ==========================================================================
   15. RESPONSIVE
   ========================================================================== */
@media (max-width: 1024px) {
  .solutions-grid,
  .references-grid { grid-template-columns: repeat(2, 1fr); }
  .news-card { flex: 0 0 calc(50% - 16px); }
  .header-phone-text { display: none; }
  .header-phone-icon { width: 40px; height: 40px; }
}

@media (max-width: 900px) {
  .engagement-container { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .header { padding: 0 24px; }
  .nav, .header-phone, .btn-contact-header { display: none; }
  .menu-toggle { display: flex; }
  .hero { padding: 40px 24px; }
  .hero-title { font-size: 42px; }
  .section, .engagement-section { padding: 60px 24px; }
  .solutions-grid, .contact-grid { grid-template-columns: 1fr; }
  .news-card { flex: 0 0 calc(100% - 16px); }
  .footer-content, .footer-links { flex-direction: column; gap: 40px; }
  .footer-links { gap: 32px; }
  
  .support-btn {
    top: auto;
    bottom: 20px;
    right: 20px;
    transform: none;
    border-radius: 50%;
    width: 56px;
    height: 56px;
    padding: 0;
    justify-content: center;
  }
  
  .support-btn span:not(.support-btn-icon) { display: none; }
  .support-btn-icon { font-size: 24px; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 36px; }
  .section-title { font-size: 32px; }
  .hero-cta { flex-direction: column; }
  .btn { width: 100%; text-align: center; }
}