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

:root {
  /* Colors */
  --bg-color: #050816;
  --primary-blue: #1A3CFF;
  --accent-cyan: #00E5FF;
  --text-white: #F4F7FF;
  --text-muted: #8A98C9;

  /* Gradients */
  --bg-gradient: radial-gradient(circle at top right, rgba(26, 60, 255, 0.15) 0%, transparent 40%),
    radial-gradient(circle at bottom left, rgba(0, 229, 255, 0.1) 0%, transparent 40%);

  --text-gradient: linear-gradient(90deg, #F4F7FF 0%, #8A98C9 100%);
  --accent-gradient: linear-gradient(90deg, #00E5FF 0%, #1A3CFF 100%);

  /* Typography */
  --font-main: 'Inter', sans-serif;

  /* Layout */
  --container-width: 1140px;
  --container-padding: 0 24px;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

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

@keyframes float {
  0% {
    transform: translateY(0px);
  }

  50% {
    transform: translateY(-15px);
  }

  100% {
    transform: translateY(0px);
  }
}

@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }

  100% {
    background-position: 0% 50%;
  }
}

@keyframes pulseGlow {
  0% {
    box-shadow: 0 0 20px rgba(0, 229, 255, 0.4);
  }

  50% {
    box-shadow: 0 0 40px rgba(0, 229, 255, 0.8);
  }

  100% {
    box-shadow: 0 0 20px rgba(0, 229, 255, 0.4);
  }
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 20px;
  overflow-x: hidden;
  scrollbar-width: thin;
  scrollbar-color: rgba(0, 229, 255, 0.5) rgba(5, 8, 22, 0.6);
  touch-action: pan-x pan-y;
}

/* Custom scrollbar - stylé */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: rgba(5, 8, 22, 0.6);
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, rgba(0, 229, 255, 0.5), rgba(26, 60, 255, 0.6));
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, rgba(0, 229, 255, 0.7), rgba(26, 60, 255, 0.8));
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.3);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-color);
  background-image: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-white);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* Subtle texture & grid lines */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-image:
    linear-gradient(rgba(26, 60, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26, 60, 255, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  z-index: -1;
  pointer-events: none;
}

/* Utilities */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--container-padding);
}

.text-gradient {
  background: var(--text-gradient);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 4s ease infinite;
}

.highlight {
  color: var(--accent-cyan);
  text-shadow: 0 0 10px rgba(0, 229, 255, 0.3);
}

.highlight-bg {
  background: rgba(0, 229, 255, 0.1);
  border: 1px solid rgba(0, 229, 255, 0.3);
  padding: 0 8px;
  border-radius: 4px;
}

section {
  padding: 100px 0;
  position: relative;
  z-index: 1;
}

/* Top Banner */
.top-banner {
  background: rgba(26, 60, 255, 0.15);
  border-bottom: 1px solid rgba(0, 229, 255, 0.3);
  padding: 16px 0;
  text-align: center;
  position: fixed;
  top: 0;
  left: 0;
  overflow: hidden;
  white-space: nowrap;
  width: 100%;
  z-index: 200;
}

.scrolling-text {
  display: inline-block;
  animation: scroll-left 25s linear infinite;
}

.scrolling-text span {
  color: #00e5ff;
  font-size: 1.05rem;
  font-weight: 600;
  margin-right: 30px;
  text-transform: none;
  letter-spacing: 1px;
}

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

  100% {
    transform: translateX(-50%);
  }
}

/* Bandeau défilant style alternatif (strip) */
.strip-banner {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 10px 0;
  background: linear-gradient(90deg, #0a0e1a 0%, #12182e 50%, #0a0e1a 100%);
  border-bottom: 1px solid rgba(0, 229, 255, 0.25);
  overflow: hidden;
  z-index: 200;
}

.strip-banner__scroll {
  display: inline-flex;
  animation: scroll-left 72s linear infinite;
}

/* Page remerciement : même vitesse que la page principale (72s) */
.strip-banner .strip-banner__scroll--slow {
  animation: scroll-left 72s linear infinite;
}

.strip-banner__scroll span {
  color: rgba(255, 255, 255, 0.95);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  margin-right: 60px;
  white-space: nowrap;
}

.strip-banner__scroll span::after {
  content: '';
  margin-left: 60px;
}

@media (max-width: 768px) {
  .strip-banner {
    padding: 8px 0;
  }
  .strip-banner__scroll span {
    font-size: 0.8rem;
    margin-right: 40px;
  }
}

@media (max-width: 480px) {
  .strip-banner {
    padding: 6px 0;
  }
  .strip-banner__scroll span {
    font-size: 0.75rem;
    margin-right: 32px;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-family: var(--font-main);
  font-size: 0.95rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  text-decoration: none;
  color: var(--text-white);

  /* Glassmorphism */
  background: rgba(26, 60, 255, 0.15);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 229, 255, 0.5);
  border-radius: 4px;
  /* Slightly sharp for tech feel */

  transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 229, 255, 0.2), transparent);
  transition: all 0.5s ease;
}

.btn:hover {
  background: rgba(26, 60, 255, 0.3);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 20px rgba(0, 229, 255, 0.4), inset 0 0 10px rgba(0, 229, 255, 0.2);
  transform: translateY(-2px);
}

.btn:hover::before {
  left: 100%;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.8rem;
  letter-spacing: 1px;
}

.btn-secondary {
  background: transparent;
  border-color: rgba(138, 152, 201, 0.3);
  color: var(--text-muted);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(138, 152, 201, 0.8);
  color: var(--text-white);
  box-shadow: none;
}

/* Typography specifics */
h1,
h2,
h3,
h4,
h5,
h6 {
  text-transform: uppercase;
  letter-spacing: 1px;
  line-height: 1.2;
}

h2 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 2rem;
  text-align: center;
}

.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  font-size: 1.2rem;
  max-width: 700px;
  margin: 0 auto 4rem;
}

/* --- SECTIONS --- */

/* 1. Header */
header {
  position: fixed;
  top: 41px;
  width: 100%;
  padding: 20px 0;
  z-index: 100;
  background: rgba(5, 8, 22, 0.8);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-white);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo span {
  color: var(--accent-cyan);
}

.nav-links {
  display: flex;
  gap: 30px;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: color 0.3s ease;
}

.nav-links a:hover {
  color: var(--accent-cyan);
}

/* 2. Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 100px;
  text-align: center;
  position: relative;
}

.hero-content {
  max-width: 900px;
  position: relative;
  z-index: 2;
  opacity: 0;
  animation: fadeIn 1s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

.hero-tag {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(0, 229, 255, 0.1);
  border: 1px solid rgba(0, 229, 255, 0.2);
  border-radius: 50px;
  color: var(--accent-cyan);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 4.5rem;
  font-weight: 900;
  letter-spacing: -1px;
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: 1.4rem;
  color: var(--text-muted);
  font-weight: 400;
  margin-bottom: 40px;
  max-width: 700px;
  margin-inline: auto;
}

.video-container {
  margin: 50px auto 40px;
  max-width: 800px;
  position: relative;
  background: #000;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid rgba(26, 60, 255, 0.3);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 30px rgba(26, 60, 255, 0.2);
  animation: float 6s ease-in-out infinite;
}

.hero-video-wrap .hero-unmute-btn {
  position: absolute;
  bottom: 12px;
  right: 12px;
  z-index: 2;
  padding: 8px 14px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-white);
  background: rgba(0, 0, 0, 0.7);
  border: 1px solid rgba(0, 229, 255, 0.5);
  border-radius: 24px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: background 0.2s, border-color 0.2s;
}
.hero-video-wrap .hero-unmute-btn:hover {
  background: rgba(26, 60, 255, 0.5);
  border-color: var(--accent-cyan);
}

.video-placeholder {
  aspect-ratio: 16/9;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  background: linear-gradient(45deg, rgba(26, 60, 255, 0.1), rgba(0, 229, 255, 0.05));
  position: relative;
}

.play-button {
  width: 80px;
  height: 80px;
  background: rgba(5, 8, 22, 0.6);
  backdrop-filter: blur(5px);
  border: 2px solid var(--accent-cyan);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  animation: pulseGlow 3s infinite;
}

.play-button:hover {
  transform: scale(1.1);
  box-shadow: 0 0 30px rgba(0, 229, 255, 0.6);
}

.play-button i {
  color: var(--text-white);
  font-size: 24px;
  margin-left: 6px;
}

/* 3. Session Concept */
.concept-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.concept-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: 40px 30px;
  border-radius: 8px;
  transition: transform 0.3s ease, background 0.3s ease, border-color 0.3s ease;
}

.concept-card:hover {
  transform: translateY(-5px);
  background: rgba(26, 60, 255, 0.05);
  border-color: rgba(26, 60, 255, 0.3);
}

.card-icon {
  font-size: 2.5rem;
  color: var(--accent-cyan);
  margin-bottom: 20px;
}

.concept-card h3 {
  font-size: 1.3rem;
  margin-bottom: 15px;
}

.concept-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* 4. Social Proof / Authority */
.authority {
  background: linear-gradient(180deg, transparent, rgba(26, 60, 255, 0.05), transparent);
  border-top: 1px solid rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid rgba(255, 255, 255, 0.02);
}

.stats-container {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 40px;
  margin-bottom: 60px;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: 3.5rem;
  font-weight: 900;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 10px;
}

.stat-label {
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.9rem;
  font-weight: 600;
}

.authority-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.authority-text p {
  margin-bottom: 20px;
  font-size: 1.1rem;
  color: var(--text-muted);
}

.authority-image {
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid rgba(0, 229, 255, 0.2);
  position: relative;
}

.authority-image::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(45deg, rgba(26, 60, 255, 0.4), transparent);
  mix-blend-mode: overlay;
}

.authority-image img {
  width: 100%;
  height: auto;
  display: block;
  filter: grayscale(100%) contrast(1.2);
}

/* 5. 5 Pillars (Why Now) */
.pillars-container {
  display: flex;
  flex-direction: column;
  gap: 40px;
  max-width: 800px;
  margin: 0 auto;
}

.pillar {
  display: flex;
  gap: 30px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: 30px;
  border-radius: 8px;
  position: relative;
  overflow: hidden;
}

.pillar::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 4px;
  height: 100%;
  background: var(--accent-cyan);
  opacity: 0.5;
  transition: opacity 0.3s;
}

.pillar:hover::before {
  opacity: 1;
}

.pillar-number {
  font-size: 2rem;
  font-weight: 900;
  color: rgba(255, 255, 255, 0.1);
  line-height: 1;
}

.pillar-content h3 {
  font-size: 1.5rem;
  margin-bottom: 10px;
  color: var(--text-white);
}

.pillar-content p {
  color: var(--text-muted);
}

/* 6. Testimonials — mobile (< 769px): 1 vidéo + flèches; desktop (≥ 769px): 3 vidéos + flèches */
.slider-container {
  position: relative;
  max-width: 480px;
  margin: 40px auto 0;
  display: flex;
  align-items: center;
  gap: 16px;
}

.slider-btn {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  font-size: 0.85rem;
}

.slider-btn:hover {
  background: rgba(0, 229, 255, 0.2);
  color: var(--accent-cyan);
  border-color: rgba(0, 229, 255, 0.4);
}

.video-slider-wrapper {
  width: 336px;
  min-width: 336px;
  overflow-x: hidden;
  overflow-y: hidden;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  scroll-snap-type: x mandatory;
}

.video-slider-wrapper::-webkit-scrollbar {
  display: none;
}

.video-slider {
  display: flex;
  flex-direction: row;
  gap: 20px;
  padding: 8px 0;
  width: max-content;
  min-width: 100%;
}

.video-slider .video-testimonial {
  flex: 0 0 336px;
  width: 336px;
  min-width: 336px;
  scroll-snap-align: center;
}

@media (min-width: 769px) {
  .slider-container {
    max-width: 1100px;
    width: 100%;
  }

  .video-slider-wrapper {
    width: 100%;
    min-width: 0;
    overflow-x: auto;
  }

  .video-slider .video-testimonial {
    flex: 0 0 calc((100% - 40px) / 3);
    width: calc((100% - 40px) / 3);
    min-width: 0;
    max-width: none;
  }
}

.video-testimonial-youtube .youtube-shorts-wrap {
  position: absolute;
  inset: 0;
  z-index: 1;
}
.video-testimonial-youtube .youtube-shorts-wrap iframe {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}
.video-testimonial-youtube .testimonial-name-overlay {
  z-index: 2;
}

.video-testimonial-vimeo .vimeo-embed-wrap {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: hidden;
  border-radius: inherit;
}
.video-testimonial-vimeo .vimeo-embed-wrap iframe {
  border: none;
}
.video-testimonial-vimeo .testimonial-name-overlay {
  z-index: 2;
}

.video-testimonial {
  background: #111;
  border-radius: 12px;
  overflow: hidden;
  position: relative;
  aspect-ratio: 9/16;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: transform 0.3s ease, border-color 0.3s ease;
  cursor: pointer;
}

.video-testimonial:hover {
  transform: translateY(-5px);
  border-color: rgba(0, 229, 255, 0.5);
  box-shadow: 0 10px 30px rgba(0, 229, 255, 0.1);
}

.video-testimonial img,
.video-testimonial video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.7;
  transition: opacity 0.3s ease, transform 0.5s ease;
  display: block;
}

.video-testimonial:hover img,
.video-testimonial:hover video {
  opacity: 0.85;
  transform: scale(1.05);
}

.video-testimonial video {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
}

.testimonial-poster {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(26,60,255,0.2) 0%, rgba(0,229,255,0.08) 40%, rgba(5,8,22,0.98) 100%);
  background-size: cover;
  background-position: center;
  background-color: #0a0e1a;
  z-index: 2;
  display: block;
}

.testimonial-poster::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, transparent 40%, rgba(26, 60, 255, 0.04) 100%);
  pointer-events: none;
}

.video-testimonial .testimonial-pause {
  cursor: pointer;
}

.video-testimonial .testimonial-pause i {
  margin: 0;
}

.play-button-small {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 40px;
  height: 40px;
  background: var(--primary-blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  transition: all 0.3s ease;
  z-index: 3;
  box-shadow: 0 0 15px rgba(26, 60, 255, 0.5);
}

.video-testimonial:hover .play-button-small,
.video-testimonial:hover .testimonial-pause {
  background: var(--accent-cyan);
  box-shadow: 0 0 20px rgba(0, 229, 255, 0.6);
}

.video-testimonial:hover .testimonial-play {
  transform: translate(-50%, -50%) scale(1.1);
}

.video-testimonial .testimonial-pause {
  transform: translate(-50%, -50%);
}

.video-testimonial:hover .testimonial-pause {
  transform: translate(-50%, -50%) scale(1.1);
}

.testimonial-name-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 30px 15px 15px;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.95) 70%);
  text-align: center;
  font-weight: 600;
  z-index: 2;
  transition: opacity 0.3s ease;
}

/* 7. Deliverables */
.deliverables {
  background: rgba(26, 60, 255, 0.02);
  border-top: 1px solid rgba(26, 60, 255, 0.1);
  border-bottom: 1px solid rgba(26, 60, 255, 0.1);
}

.deliverables-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 40px;
}

.deliverable-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: 30px 20px;
  border-radius: 8px;
  transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease;
  cursor: default;
  position: relative;
  overflow: hidden;
}

.deliverable-card:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.1);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.deliverable-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: transparent;
  transition: background 0.3s ease;
}

.deliverable-card:hover::before {
  background: var(--accent-gradient);
}

.deliverable-icon {
  font-size: 2rem;
  margin-bottom: 20px;
  display: block;
}

.deliverable-card h3 {
  font-size: 1.1rem;
  margin-bottom: 15px;
}

.deliverable-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.limited-spots-warning {
  margin-top: 40px;
  padding: 20px;
  border: 1px dashed rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  text-align: center;
  background: rgba(255, 183, 0, 0.03);
  transition: background 0.3s ease, border-color 0.3s ease;
}

.limited-spots-warning:hover {
  background: rgba(255, 183, 0, 0.08);
  border-color: rgba(255, 183, 0, 0.3);
}

.limited-spots-warning-title {
  color: var(--text-white);
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.limited-spots-warning p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 10px;
}

/* 8. Process (3 Steps) — Chiffres à gauche, ligne au scroll, textes à droite */
.process-steps {
  display: flex;
  flex-direction: row;
  align-items: stretch;
  gap: 28px;
  margin-top: 48px;
  position: relative;
}

.process-steps-left {
  width: 52px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  position: relative;
  padding: 8px 0;
}

.process-steps-line {
  position: absolute;
  top: 28px;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 2px;
  overflow: hidden;
  z-index: 0;
}

.process-steps-line-fill {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 0%;
  background: linear-gradient(to bottom, var(--accent-cyan), rgba(0, 229, 255, 0.6));
  border-radius: 2px;
  transition: height 0.12s ease-out;
  z-index: 1;
}

.process-steps-markers {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  flex: 1;
  min-height: 100%;
}

.step-marker {
  width: 40px;
  height: 40px;
  background: var(--bg-color);
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-muted);
  flex-shrink: 0;
  transition: border-color 0.25s ease, color 0.25s ease, box-shadow 0.25s ease;
}

.process-steps-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 32px;
  min-width: 0;
}

.process-steps-content .step {
  text-align: left;
  padding: 0;
  position: relative;
}

.process-steps-content .step h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
  color: var(--text-white);
}

.process-steps-content .step p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin: 0;
}

/* 9. FAQ */
.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  margin-bottom: 15px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  overflow: hidden;
}

.faq-question {
  padding: 20px 25px;
  background: rgba(255, 255, 255, 0.02);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  font-size: 1.1rem;
  transition: background 0.3s;
}

.faq-question:hover {
  background: rgba(255, 255, 255, 0.05);
}

.faq-icon {
  color: var(--accent-cyan);
  font-size: 1.2rem;
}

.faq-answer {
  padding: 0 25px 25px;
  color: var(--text-muted);
  display: none;
  /* Simplest implementation without JS for now, implies a static state or minimal JS */
}

.faq-item.active .faq-answer {
  display: block;
}

.faq-item.active .faq-question {
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

/* 10. Final CTA */
.final-cta {
  text-align: center;
  padding: 120px 0;
  background: radial-gradient(circle at center, rgba(26, 60, 255, 0.1) 0%, transparent 60%);
}

.final-cta h2 {
  font-size: 3.5rem;
  margin-bottom: 20px;
}

.final-cta p {
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-bottom: 40px;
}

.cta-group {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

/* 11. Footer */
footer {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding: 40px 0;
  background: rgba(0, 0, 0, 0.3);
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 24px;
}

.copyright {
  color: var(--text-muted);
  font-size: 0.9rem;
  order: 1;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 24px;
  order: 2;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  white-space: nowrap;
  transition: color 0.3s;
}

.footer-links a:hover {
  color: var(--text-white);
}

/* ========== RESPONSIVE (mobile / tablette / desktop) ========== */
@media (max-width: 992px) {
  :root {
    --container-padding: 0 20px;
  }

  section {
    padding: 70px 0;
  }

  .hero h1 {
    font-size: 3.2rem !important;
  }

  .hero-subtitle {
    font-size: 1.15rem;
  }

  h2 {
    font-size: 2.2rem;
  }

  .section-subtitle {
    font-size: 1.05rem;
    margin-bottom: 3rem;
  }

  .authority-content {
    display: grid !important;
    grid-template-columns: 1fr !important;
    gap: 40px;
  }

  .authority-content .authority-image {
    order: -1;
  }

  .authority-text {
    text-align: center;
  }

  .authority-text h2 {
    text-align: center !important;
    font-size: 2rem !important;
  }

  .authority-text p {
    text-align: center;
  }

  .authority-text .btn {
    margin-left: auto;
    margin-right: auto;
    display: inline-flex;
  }

  .process-steps {
    flex-direction: row;
    gap: 20px;
  }

  .process-steps-left {
    width: 44px;
    padding: 4px 0;
  }

  .process-steps-line {
    top: 22px;
    bottom: 22px;
  }

  .step-marker {
    width: 36px;
    height: 36px;
    font-size: 1rem;
  }

  .process-steps-content {
    gap: 24px;
  }

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

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

@media (max-width: 768px) {
  :root {
    --container-padding: 0 16px;
  }

  .nav-links {
    display: none;
  }

  section {
    padding: 50px 0;
  }

  .hero {
    padding-top: 56px !important;
    min-height: auto;
    padding-bottom: 48px !important;
  }

  .hero h1 {
    font-size: 2rem !important;
    line-height: 1.25;
    margin-bottom: 12px !important;
    word-break: break-word;
  }

  .hero-subtitle {
    font-size: 0.95rem;
    margin-bottom: 24px !important;
  }

  h2 {
    font-size: 1.75rem;
    margin-bottom: 1.25rem;
  }

  .section-subtitle {
    font-size: 0.95rem;
    margin-bottom: 2.5rem;
  }

  .video-container {
    margin: 20px auto 24px !important;
    max-width: 100% !important;
  }

  .stat-number {
    font-size: 2.25rem;
  }

  .stats-container {
    gap: 28px;
    margin-bottom: 40px;
  }

  .btn {
    width: 100%;
    max-width: 320px;
    margin-left: auto;
    margin-right: auto;
    padding: 14px 20px;
    font-size: 0.9rem;
  }

  .authority-text .btn {
    width: auto;
    max-width: none;
  }

  .concept-card {
    padding: 24px 18px;
  }

  .concept-card h3 {
    font-size: 1.15rem;
  }

  .concept-card p {
    font-size: 0.9rem;
    line-height: 1.55;
  }

  /* À PROPOS : empiler image au-dessus, texte centré */
  .authority {
    padding-bottom: 100px;
  }

  .authority-content {
    display: grid !important;
    grid-template-columns: 1fr !important;
    gap: 28px !important;
  }

  .authority-text > div:first-child {
    text-align: center;
  }

  .authority-text h2 {
    font-size: 1.6rem !important;
    text-align: center !important;
    margin-bottom: 1rem !important;
    line-height: 1.3;
  }

  .authority-text p {
    text-align: center;
    font-size: 0.9rem;
    margin-bottom: 14px !important;
  }

  .authority-image > div {
    max-height: 260px !important;
    height: 260px !important;
    border-radius: 10px;
  }

  .authority-image img {
    object-fit: cover;
  }

  .slider-container {
    margin-top: 24px;
    max-width: 100%;
    padding: 0 8px;
  }

  .video-slider-wrapper {
    width: min(280px, calc(100vw - 32px));
    min-width: min(280px, calc(100vw - 32px));
  }

  .video-slider .video-testimonial {
    flex: 0 0 min(280px, calc(100vw - 32px));
    width: min(280px, calc(100vw - 32px));
    min-width: min(280px, calc(100vw - 32px));
  }

  .deliverable-card {
    padding: 24px 18px;
  }

  .deliverable-card h3 {
    font-size: 1.1rem;
  }

  .deliverable-card p {
    font-size: 0.9rem;
  }

  .process-steps {
    gap: 16px;
  }

  .step h3 {
    font-size: 1.05rem;
  }

  .step p {
    font-size: 0.9rem;
  }

  .final-cta h2 {
    font-size: 1.65rem;
  }

  .final-cta p {
    font-size: 0.95rem;
  }

  .footer-content {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
  }

  .faq-question {
    font-size: 0.9rem;
    padding: 14px 40px 14px 0;
  }

  .faq-answer p {
    font-size: 0.9rem;
  }

  .limited-spots-warning {
    padding: 20px;
  }

  .scarcity-text {
    font-size: 0.85rem !important;
    flex-wrap: wrap;
    justify-content: center;
    text-align: center;
  }
}

@media (max-width: 480px) {
  :root {
    --container-padding: 0 14px;
  }

  section {
    padding: 40px 0;
  }

  .hero {
    padding-top: 52px !important;
    padding-bottom: 40px !important;
  }

  .hero h1 {
    font-size: 1.65rem !important;
    line-height: 1.3;
  }

  .hero-subtitle {
    font-size: 0.9rem;
    margin-bottom: 20px !important;
  }

  h2 {
    font-size: 1.45rem;
    margin-bottom: 1rem;
  }

  .section-subtitle {
    font-size: 0.875rem;
    margin-bottom: 2rem;
  }

  .top-banner .scrolling-text span {
    font-size: 0.9rem;
  }

  .btn {
    padding: 12px 18px;
    font-size: 0.85rem;
  }

  .concept-card {
    padding: 20px 16px;
  }

  .concept-card h3 {
    font-size: 1.05rem;
  }

  .authority {
    padding-bottom: 88px;
  }

  .authority-text h2 {
    font-size: 1.4rem !important;
  }

  .authority-image > div {
    max-height: 220px !important;
    height: 220px !important;
  }

  .video-slider-wrapper {
    width: min(260px, calc(100vw - 24px));
    min-width: min(260px, calc(100vw - 24px));
  }

  .video-slider .video-testimonial {
    flex: 0 0 min(260px, calc(100vw - 24px));
    width: min(260px, calc(100vw - 24px));
    min-width: min(260px, calc(100vw - 24px));
  }

  .slider-btn {
    width: 40px;
    height: 40px;
    font-size: 0.9rem;
  }

  .deliverable-card {
    padding: 20px 16px;
  }

  .deliverable-card h3 {
    font-size: 1rem;
  }

  .step {
    padding: 20px 14px;
  }

  .step h3 {
    font-size: 1rem;
  }

  .step p {
    font-size: 0.875rem;
  }

  .final-cta h2 {
    font-size: 1.45rem;
  }

  .faq-question {
    font-size: 0.85rem;
    padding: 12px 36px 12px 0;
  }

  .faq-answer p {
    font-size: 0.85rem;
  }

  .scarcity-text {
    font-size: 0.8rem !important;
  }
}

/* Très petits écrans (< 380px) */
@media (max-width: 379px) {
  :root {
    --container-padding: 0 12px;
  }

  .hero h1 {
    font-size: 1.5rem !important;
  }

  .video-slider-wrapper {
    width: min(240px, calc(100vw - 20px));
    min-width: min(240px, calc(100vw - 20px));
  }

  .video-slider .video-testimonial {
    flex: 0 0 min(240px, calc(100vw - 20px));
    width: min(240px, calc(100vw - 20px));
    min-width: min(240px, calc(100vw - 20px));
  }

  .slider-btn {
    width: 36px;
    height: 36px;
  }
}