/* ============================================
   STYLES PRINCIPAUX - Site Consultant IA Locale
   ============================================ */

@import 'variables.css';

/* === RESET & BASE === */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: var(--font-size-base);
}

body {
  font-family: var(--font-family-base);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  transition: background-color var(--transition-base), color var(--transition-base);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  list-style: none;
}

/* === UTILITAIRES === */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

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

.section-title {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-2xl);
  max-width: 640px;
}

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

.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

.bg-secondary {
  background-color: var(--bg-secondary);
}

/* === BOUTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 0.75rem 1.5rem;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--text-inverse);
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: var(--text-inverse);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--shadow-color);
}

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

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: var(--text-inverse);
}

/* === HEADER & NAVIGATION === */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: all var(--transition-base);
}

.header.scrolled {
  box-shadow: 0 2px 12px var(--shadow-color);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: var(--font-size-lg);
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.nav-list {
  display: flex;
  gap: var(--spacing-lg);
}

.nav-link {
  color: var(--text-secondary);
  font-weight: var(--font-weight-medium);
  padding: var(--spacing-sm) 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-base);
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: var(--font-size-xl);
  padding: var(--spacing-sm);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

/* Menu hamburger mobile */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  transition: all var(--transition-fast);
}

/* === HERO SECTION === */
.hero {
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.hero-content h1 {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
  margin-bottom: var(--spacing-lg);
}

.hero-content h1 span {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content h1 .hero-subtitle {
  display: block;
  font-size: calc(var(--font-size-5xl) * 0.55);
}

.hero-content p {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
  max-width: 540px;
}

.hero-actions {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-graphic {
  width: 100%;
  max-width: 480px;
  aspect-ratio: 1;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(99, 102, 241, 0.15);
}

.hero-graphic img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* === CARDS GRID === */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px var(--shadow-color);
  border-color: var(--color-primary-light);
}

.card-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: white;
  margin-bottom: var(--spacing-lg);
}

.card h3 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-sm);
}

.card p {
  color: var(--text-secondary);
  line-height: 1.7;
}

/* === SERVICES PAGE === */
.service-detail {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: var(--spacing-xl);
  padding: var(--spacing-xl) 0;
  border-bottom: 1px solid var(--border-color);
}

.service-detail:last-child {
  border-bottom: none;
}

.service-number {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-lg);
}

.service-info h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
}

.service-info p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.tech-tag {
  padding: var(--spacing-xs) var(--spacing-sm);
  background-color: var(--bg-tertiary);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* === EXPERTISE / TIMELINE === */
.timeline {
  position: relative;
  padding-left: var(--spacing-2xl);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-primary), var(--color-secondary));
}

.timeline-item {
  position: relative;
  margin-bottom: var(--spacing-2xl);
  padding-left: var(--spacing-xl);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--spacing-2xl) - 6px);
  top: 8px;
  width: 14px;
  height: 14px;
  background-color: var(--color-primary);
  border-radius: var(--radius-full);
  border: 3px solid var(--bg-primary);
}

.timeline-date {
  font-size: var(--font-size-sm);
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-xs);
}

.timeline-item h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-xs);
}

.timeline-item h4 {
  font-size: var(--font-size-base);
  color: var(--text-secondary);
  font-weight: var(--font-weight-normal);
  margin-bottom: var(--spacing-sm);
}

.timeline-item ul {
  list-style: disc;
  padding-left: var(--spacing-lg);
  color: var(--text-secondary);
}

.timeline-item li {
  margin-bottom: var(--spacing-xs);
}

/* === PROJETS / PORTFOLIO === */
.project-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px var(--shadow-color);
}

.project-image {
  height: 200px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  color: white;
}

.project-body {
  padding: var(--spacing-lg);
}

.project-body h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
}

.project-body p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

/* === CONTACT === */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
}

.contact-info-card {
  background-color: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.contact-item:last-child {
  margin-bottom: 0;
}

.contact-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: var(--font-size-lg);
  flex-shrink: 0;
}

.contact-item h4 {
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-xs);
}

.contact-item p, .contact-item a {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

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

.form-group label {
  display: block;
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--spacing-xs);
  color: var(--text-primary);
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: inherit;
  font-size: var(--font-size-base);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

textarea.form-control {
  min-height: 120px;
  resize: vertical;
}

/* === STATS / CHIFFRES === */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-xl);
  text-align: center;
  justify-items: center;
}

.stat-item h3 {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-item p {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
}

/* === TECH GRID / STACK === */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: var(--spacing-lg);
  justify-items: center;
  align-items: start;
}

.tech-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg) var(--spacing-md);
  border-radius: var(--radius-lg);
  background-color: var(--bg-secondary, #f8fafc);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  min-height: 120px;
}

.tech-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.tech-logo {
  width: 64px;
  height: 64px;
  object-fit: contain;
  margin-bottom: var(--spacing-sm);
  border-radius: var(--radius-md);
}

.tech-card span {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold, 600);
  color: var(--text-primary);
}

.tech-category-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
  text-align: left;
}

/* === CTA SECTION === */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: white;
  text-align: center;
  padding: var(--spacing-3xl) 0;
}

.cta-section h2 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-md);
}

.cta-section p {
  font-size: var(--font-size-lg);
  opacity: 0.9;
  margin-bottom: var(--spacing-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

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

.cta-section .btn:hover {
  background-color: var(--bg-secondary);
  transform: translateY(-2px);
}

/* === CTA INLINE (intermédiaire) === */
.cta-inline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-xl);
  padding: var(--spacing-lg) var(--spacing-xl);
  margin: var(--spacing-2xl) 0;
  background-color: var(--bg-secondary);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--color-primary);
}

.cta-inline p {
  font-size: var(--font-size-lg);
  color: var(--text-primary);
  margin: 0;
}

.cta-inline .btn {
  flex-shrink: 0;
}

@media (max-width: 640px) {
  .cta-inline {
    flex-direction: column;
    text-align: center;
  }

  .cta-inline .btn {
    width: 100%;
  }
}

/* === FOOTER === */
.footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: var(--spacing-2xl) 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-md);
  max-width: 300px;
}

.footer h4 {
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-md);
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

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

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
}

/* === FOOTER LEGAL LINKS === */
.footer-legal {
  border-top: 1px solid var(--border-color);
  padding-top: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
}

.footer-legal a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

/* === RESPONSIVE === */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-content p {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .hero-visual {
    order: -1;
  }
  
  .hero-graphic {
    max-width: 320px;
    font-size: 5rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* === À PROPOS - Responsive intro flex === */
.about-intro-flex {
  display: flex;
  align-items: center;
  gap: var(--spacing-2xl);
}

@media (max-width: 768px) {
  .about-intro-flex {
    flex-direction: column !important;
    text-align: center;
  }

  .about-intro-flex img {
    width: 140px !important;
    height: 140px !important;
  }

  :root {
    --font-size-5xl: 2.25rem;
    --font-size-4xl: 1.875rem;
    --font-size-3xl: 1.5rem;
    --spacing-3xl: 2.5rem; /* Réduire le padding des sections sur mobile */
  }

  .section {
    padding-top: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
  }

  .hero-inner {
    padding-top: calc(var(--header-height) + var(--spacing-xl));
    padding-bottom: var(--spacing-2xl);
  }

  .timeline {
    padding-left: var(--spacing-lg);
  }

  .timeline-item {
    padding-left: var(--spacing-md);
  }

  .timeline-item::before {
    left: calc(-1 * var(--spacing-lg) - 6px);
  }

  /* Service detail en colonne sur mobile */
  .service-detail {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--spacing-md);
  }

  .service-number {
    margin: 0 auto;
  }

  .tech-tags {
    justify-content: center;
  }

  /* Hero : mêmes espacements que les autres sections sur mobile */
  .hero {
    min-height: auto !important;
    padding-top: var(--header-height);
    padding-bottom: 0;
  }

  .hero .container {
    padding-top: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
  }

  /* CTA Section responsive */
  .cta-section {
    padding-top: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
  }

  .nav-list {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--bg-primary);
    flex-direction: column;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 8px 24px var(--shadow-color);
  }
  
  .nav-list.open {
    display: flex;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-legal {
    flex-wrap: wrap;
    justify-content: center;
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }

  /* Ajuster les inputs et textarea pour mobile */
  .form-group input,
  .form-group select,
  .form-group textarea {
    font-size: 16px; /* Éviter le zoom automatique sur iOS */
  }
}

@media (max-width: 480px) {
  :root {
    --font-size-5xl: 1.75rem;
    --font-size-4xl: 1.5rem;
    --font-size-3xl: 1.25rem;
    --spacing-2xl: 2rem;
  }

  .cards-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-actions {
    flex-direction: column;
  }
  
  .hero-actions .btn {
    width: 100%;
  }

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

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

  .cta-inline {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .cta-inline p:first-child {
    text-align: center;
  }

  .container {
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
  }

  /* Hero graphic plus petit sur très petit écran */
  .hero-graphic {
    max-width: 240px;
    font-size: 3.5rem;
  }

  /* Service detail ajustements supplémentaires */
  .service-detail {
    padding: var(--spacing-lg) 0;
  }

  /* Contact info card plus compacte */
  .contact-info-card {
    padding: var(--spacing-lg);
  }

  /* Footer plus compact */
  .footer {
    padding: var(--spacing-xl) 0;
  }
}

/* === ANIMATIONS === */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-on-scroll {
  opacity: 0;
}

.animate-on-scroll.visible {
  animation: fadeInUp var(--transition-slow) forwards;
}

/* === PAGES LÉGALES === */
.legal-article {
  margin-bottom: var(--spacing-2xl);
}

.legal-article h2 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--color-primary);
}

.legal-article p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
  line-height: 1.7;
}

.legal-article ul {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

.legal-article li {
  margin-bottom: var(--spacing-xs, 0.25rem);
  line-height: 1.6;
}

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

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}