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

:root {
  --color-black: #0a0a0a;
  --color-dark: #1e1e1e;
  --color-light: #f5f5f5;
  --color-neon-green: #00ff9d;
  --color-neon-blue: #009dff;
  --color-gray: #6b7280;
  --color-silver: #94a3b8;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;
}

body {
  margin: 0;
  padding: 0;
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: linear-gradient(180deg, var(--color-black) 0%, #0f1419 50%, #1a1f2e 100%);
  color: var(--color-light);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 255, 157, 0.1);
  padding: var(--spacing-md) 0;
}

/* Taille initiale */
.logo img {
  height: 45px;
  width: auto;
  transition: all 0.4s ease;
  display: block;
  object-fit: contain;
}

/* Taille réduite quand on scrolle */
.header.shrink .logo img {
  height: 40px;
}

/* Animation douce pour le header entier */
.header {
  transition: all 0.4s ease;
  padding: 1.5rem 0;
}

.header.shrink {
  padding: 0.5rem 0;
  background: rgba(10, 10, 10, 0.9);
  border-bottom: 1px solid rgba(0, 255, 157, 0.3);
}



.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-3xl) var(--spacing-lg);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(0, 255, 157, 0.1) 0%, transparent 70%);
  animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.1); }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
}

.hero-title {
  font-size: clamp(2rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--color-light);
  text-shadow: 0 0 30px rgba(0, 255, 157, 0.3);
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  font-weight: 300;
  color: var(--color-silver);
  margin-bottom: var(--spacing-xl);
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  justify-content: center;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 12px;
  transition: all 0.3s ease;
  cursor: pointer;
  border: 2px solid transparent;
  position: relative;
  overflow: hidden;
  font-family: 'Poppins', sans-serif;
}

.btn-icon {
  font-size: 1.2rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-neon-green), #00cc7a);
  color: var(--color-black);
  box-shadow: 0 10px 30px rgba(0, 255, 157, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 40px rgba(0, 255, 157, 0.5);
}

.btn-whatsapp {
  background: rgba(0, 157, 255, 0.1);
  color: var(--color-neon-blue);
  border: 2px solid var(--color-neon-blue);
  box-shadow: 0 10px 30px rgba(0, 157, 255, 0.2);
}

.btn-whatsapp:hover {
  background: var(--color-neon-blue);
  color: var(--color-black);
  transform: translateY(-3px);
  box-shadow: 0 15px 40px rgba(0, 157, 255, 0.4);
}

.btn-email {
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-light);
  border: 2px solid rgba(255, 255, 255, 0.2);
}

.btn-email:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-3px);
}

.btn-large {
  padding: 1.25rem 2.5rem;
  font-size: 1.125rem;
}

.features {
  padding: var(--spacing-3xl) 0;
  background: rgba(30, 30, 30, 0.5);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
}

.feature-card {
  background: linear-gradient(135deg, rgba(0, 255, 157, 0.05), rgba(0, 157, 255, 0.05));
  border: 1px solid rgba(0, 255, 157, 0.2);
  border-radius: 16px;
  padding: var(--spacing-xl);
  text-align: center;
  transition: all 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-10px);
  border-color: var(--color-neon-green);
  box-shadow: 0 20px 40px rgba(0, 255, 157, 0.2);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  filter: drop-shadow(0 0 20px rgba(0, 255, 157, 0.5));
}

.feature-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--color-light);
}

.feature-card p {
  color: var(--color-silver);
  line-height: 1.8;
}

.why-us {
  padding: var(--spacing-3xl) 0;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--spacing-xl);
  background: linear-gradient(135deg, var(--color-neon-green), var(--color-neon-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.why-us-content {
  max-width: 900px;
  margin: 0 auto;
  background: rgba(30, 30, 30, 0.5);
  border: 1px solid rgba(0, 255, 157, 0.1);
  border-radius: 16px;
  padding: var(--spacing-xl);
}

.why-us-content p {
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--color-silver);
  text-align: justify;
}

.how-it-works {
  padding: var(--spacing-3xl) 0;
  background: rgba(30, 30, 30, 0.5);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.step-card {
  background: rgba(10, 10, 10, 0.6);
  border: 1px solid rgba(0, 157, 255, 0.2);
  border-radius: 16px;
  padding: var(--spacing-xl);
  text-align: center;
  position: relative;
  transition: all 0.3s ease;
}

.step-card:hover {
  transform: translateY(-10px);
  border-color: var(--color-neon-blue);
  box-shadow: 0 20px 40px rgba(0, 157, 255, 0.2);
}

.step-number {
  position: absolute;
  top: -15px;
  right: 20px;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-neon-blue), #006fb8);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-black);
  box-shadow: 0 5px 15px rgba(0, 157, 255, 0.4);
}

.step-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  filter: drop-shadow(0 0 20px rgba(0, 157, 255, 0.5));
}

.step-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--color-light);
}

.step-card p {
  color: var(--color-silver);
  line-height: 1.8;
}

.cta-section {
  padding: var(--spacing-3xl) 0;
  text-align: center;
}

.cta-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  color: var(--color-light);
}

.cta-subtitle {
  font-size: 1.25rem;
  color: var(--color-silver);
  margin-bottom: var(--spacing-xl);
}

.footer {
  background: rgba(10, 10, 10, 0.8);
  border-top: 1px solid rgba(0, 255, 157, 0.1);
  padding: var(--spacing-xl) 0;
  text-align: center;
}

.footer p {
  color: var(--color-gray);
  margin-bottom: var(--spacing-md);
}

.footer-links {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
}

.footer-link {
  color: var(--color-silver);
  text-decoration: none;
  transition: color 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.footer-link:hover {
  color: var(--color-neon-green);
}

.fade-in {
  opacity: 0;
  animation: fadeIn 1s ease forwards;
}

.fade-in:nth-child(1) { animation-delay: 0.2s; }
.fade-in:nth-child(2) { animation-delay: 0.4s; }
.fade-in:nth-child(3) { animation-delay: 0.6s; }

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

.slide-up {
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.6s ease;
}

.slide-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.expertise-page {
  min-height: 100vh;
  padding: calc(80px + var(--spacing-xl)) var(--spacing-lg) var(--spacing-3xl);
}

.expertise-container {
  max-width: 700px;
  margin: 0 auto;
}

.expertise-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, var(--color-neon-green), var(--color-neon-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.expertise-subtitle {
  text-align: center;
  color: var(--color-silver);
  margin-bottom: var(--spacing-xl);
  font-size: 1.125rem;
}

.form-card {
  background: rgba(30, 30, 30, 0.8);
  border: 2px solid rgba(0, 255, 157, 0.2);
  border-radius: 20px;
  padding: var(--spacing-xl);
  box-shadow: 0 20px 60px rgba(0, 255, 157, 0.1);
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-light);
  margin-bottom: var(--spacing-sm);
  letter-spacing: 0.5px;
}

.form-select {
  width: 100%;
  padding: 1rem;
  font-size: 1rem;
  font-family: 'Poppins', sans-serif;
  background: rgba(10, 10, 10, 0.8);
  border: 2px solid rgba(0, 255, 157, 0.3);
  border-radius: 12px;
  color: var(--color-light);
  transition: all 0.3s ease;
  cursor: pointer;
}

.form-select:focus {
  outline: none;
  border-color: var(--color-neon-green);
  box-shadow: 0 0 20px rgba(0, 255, 157, 0.3);
}

.form-select option {
  background: var(--color-dark);
  color: var(--color-light);
}

.checkbox-group {
  display: grid;
  gap: var(--spacing-sm);
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  background: rgba(10, 10, 10, 0.5);
  border: 1px solid rgba(0, 255, 157, 0.2);
  border-radius: 8px;
  transition: all 0.3s ease;
  cursor: pointer;
}

.checkbox-item:hover {
  background: rgba(0, 255, 157, 0.05);
  border-color: var(--color-neon-green);
}

.checkbox-item input[type="checkbox"] {
  width: 20px;
  height: 20px;
  cursor: pointer;
  accent-color: var(--color-neon-green);
}

.checkbox-item label {
  color: var(--color-silver);
  font-size: 1rem;
  cursor: pointer;
  flex: 1;
}

.form-textarea {
  width: 100%;
  min-height: 120px;
  padding: 1rem;
  font-size: 1rem;
  font-family: 'Poppins', sans-serif;
  background: rgba(10, 10, 10, 0.8);
  border: 2px solid rgba(0, 255, 157, 0.3);
  border-radius: 12px;
  color: var(--color-light);
  resize: vertical;
  transition: all 0.3s ease;
}

.form-textarea:focus {
  outline: none;
  border-color: var(--color-neon-green);
  box-shadow: 0 0 20px rgba(0, 255, 157, 0.3);
}

.form-textarea::placeholder {
  color: var(--color-gray);
}

.btn-submit {
  width: 100%;
  padding: 1.25rem;
  font-size: 1.125rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-neon-green), #00cc7a);
  color: var(--color-black);
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 10px 30px rgba(0, 255, 157, 0.3);
  font-family: 'Poppins', sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

.btn-submit:hover:not(:disabled) {
  transform: translateY(-3px);
  box-shadow: 0 15px 40px rgba(0, 255, 157, 0.5);
}

.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--color-silver);
  text-decoration: none;
  margin-bottom: var(--spacing-lg);
  transition: color 0.3s ease;
  font-weight: 500;
}

.back-link:hover {
  color: var(--color-neon-green);
}

.success-message {
  background: rgba(0, 255, 157, 0.1);
  border: 2px solid var(--color-neon-green);
  border-radius: 12px;
  padding: var(--spacing-lg);
  margin-top: var(--spacing-lg);
  text-align: center;
  color: var(--color-neon-green);
  font-weight: 600;
  animation: slideDown 0.5s ease;
}

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

@media (max-width: 768px) {
  .hero {
    padding: var(--spacing-2xl) var(--spacing-md);
  }

  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }

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

  .features-grid,
  .steps-grid {
    grid-template-columns: 1fr;
  }

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

  .form-card {
    padding: var(--spacing-lg);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-md);
  }

  .hero-title {
    font-size: 1.75rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .feature-card,
  .step-card {
    padding: var(--spacing-lg);
  }
}

.contact-info {
  margin-top: 2rem;
  text-align: center;
  background: rgba(10, 10, 10, 0.4);
  border: 1px solid rgba(0, 255, 157, 0.2);
  border-radius: 12px;
  padding: 1rem 1.5rem;
  display: inline-block;
  box-shadow: 0 0 20px rgba(0, 255, 157, 0.1);
}

.contact-item {
  margin: 0.5rem 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  color: var(--color-silver);
  font-size: 1rem;
}

.contact-icon {
  font-size: 1.3rem;
}

.contact-text {
  font-weight: 600;
}



/* --- Correction du style pour la section contact rapide --- */
.contact-info {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
}

.contact-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  width: 100%;
}

.contact-item .copy-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 12px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  font-family: 'Poppins', sans-serif;
}

/* Style vert du premier bouton (même que .btn-primary) */
.contact-item:first-child .copy-btn {
  background: linear-gradient(135deg, var(--color-neon-green), #00cc7a);
  color: var(--color-black);
  box-shadow: 0 10px 30px rgba(0, 255, 157, 0.3);
}

.contact-item:first-child .copy-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 40px rgba(0, 255, 157, 0.5);
}

/* Style bleu du deuxième bouton (même que .btn-email) */
.contact-item:last-child .copy-btn {
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-light);
  border: 2px solid rgba(255, 255, 255, 0.2);
}

.contact-item:last-child .copy-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-3px);
}

/* Centrage du message "Cliquez pour copier" */
.click-hint {
  text-align: center;
  margin-top: 0.5rem;
  font-size: 0.9rem;
  color: var(--color-gray);
  animation: bounce 1.5s infinite;
}

.click-hint span {
  color: var(--color-neon-green);
}

/* --- Correction du centrage des boutons de contact rapide --- */
.hero-buttons.copy-section {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  margin-top: 1.5rem;
  width: 100%;
  text-align: center;
}

.hero-buttons.copy-section .btn {
  min-width: 220px;
  justify-content: center;
}

/* --- SUPPRESSION TOTALE DU HEADER FIXE SUR MOBILE --- */
@media (max-width: 768px) {
  .header {
    position: relative !important;
    top: auto !important;
    left: auto !important;
    right: auto !important;
    z-index: auto !important;
    backdrop-filter: none !important;
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
  }

  .hero {
    margin-top: 0 !important;
    padding-top: 0 !important;
  }

  .logo img {
    height: 32px !important;
  }
}

/* --- SUPPRESSION TOTALE DU HEADER FIXE SUR MOBILE --- */
@media (max-width: 768px) {
  .header {
    position: relative !important;
    top: auto !important;
    left: auto !important;
    right: auto !important;
    z-index: auto !important;
    backdrop-filter: none !important;
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
  }

  .hero {
    margin-top: 0 !important;
    padding-top: 0 !important;
  }

  .logo img {
    height: 32px !important;
  }
}