/* Variables globales avec une palette de couleurs moderne */
:root {
  --primary-color: #6366f1; /* Indigo vibrant */
  --primary-light: #818cf8;
  --primary-dark: #4f46e5;
  --secondary-color: #0f172a; /* Slate foncé */
  --secondary-light: #1e293b;
  --accent-color: #22d3ee; /* Cyan vibrant */
  --text-color: #334155;
  --text-light: #64748b;
  --background-color: #ffffff;
  --background-alt: #f8fafc;
  --success-color: #10b981;
  --error-color: #ef4444;
  --border-color: #e2e8f0;
  --shadow-color: rgba(15, 23, 42, 0.08);
  --font-main: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  --font-code: 'Fira Code', 'Source Code Pro', monospace;
  --max-width: 1200px;
  --header-height: 70px;
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 4rem;
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 16px;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --logo-width: 100px;
}

/* Styles de base */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 20px;
}

body {
  font-family: var(--font-main);
  color: var(--text-color);
  background-color: var(--background-color);
  line-height: 1.6;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  font-weight: 400;
}

/* Scrollbar personnalisée */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--background-alt);
}

::-webkit-scrollbar-thumb {
  background: var(--primary-light);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-color);
}

/* Accessibilité */
:focus {
  outline: 3px solid var(--primary-light);
  outline-offset: 2px;
}



nav {
  display: flex;
  justify-content: space-evenly;
  width: 75%;
  gap: 1rem;
  flex-wrap: wrap;

  & > a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 1.75rem;

    border: .2rem solid rgba(99, 102, 241, 0.1);
    border-radius: var(--border-radius-lg);
    padding: 5px;

    & > h4 {
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
      margin: 0;
    }

    & > div > i {
      color: var(--primary-color);
    }
  }
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--primary-color);
  color: white;
  padding: 8px;
  z-index: 100;
  transition: top var(--transition-fast);
}

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

/* Conteneur principal */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Animation de chargement du texte */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Typographie */
h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
  line-height: 1.2;
  font-weight: 700;
  color: var(--secondary-color);
}

h1 {
  font-size: 3.5rem;
  margin-bottom: var(--spacing-lg);
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: fadeInUp 0.8s ease-out;
}

h2 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  position: relative;
  padding-bottom: var(--spacing-sm);
}

h2:after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 4px;
  background: linear-gradient(to right, var(--primary-color), var(--accent-color));
  border-radius: 2px;
}

h3 {
  font-size: 1.75rem;
  margin-bottom: var(--spacing-sm);
}

p {
  margin: 0 0 var(--spacing-md);
  color: var(--text-color);
  text-align: justify;
}

.lead {
  font-size: 1.25rem;
  line-height: 1.7;
  color: var(--text-light);
  margin-bottom: var(--spacing-lg);
  max-width: 800px;
  animation: fadeInUp 1s ease-out 0.2s;
  animation-fill-mode: both;
  text-align: justify;
}

.subtitle {
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
}

a {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-normal), transform var(--transition-fast);
  position: relative;
}

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

a:not(nav a, .btn, .card a, footer a):after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: width var(--transition-normal);
}

a:not(nav a, .btn, .card a, footer a):hover:after,
a:not(nav a, .btn, .card a, footer a):focus:after {
  width: 100%;
}

a:active {
  transform: translateY(1px);
}

/* Boutons */
.btn {
  display: inline-block;
  background-color: var(--primary-color);
  color: white;
  font-weight: 600;
  text-align: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius-md);
  border: none;
  cursor: pointer;
  transition: transform var(--transition-fast), background-color var(--transition-normal), box-shadow var(--transition-normal);
  box-shadow: 0 4px 6px rgba(99, 102, 241, 0.2);
  text-decoration: none;
}

.btn:hover, .btn:focus {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 10px rgba(99, 102, 241, 0.3);
}

.btn:active {
  transform: translateY(0);
}

.btn-secondary {
  background-color: transparent;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
  box-shadow: none;
}

.btn-secondary:hover, .btn-secondary:focus {
  background-color: var(--primary-color);
  color: white;
}

.btn-large {
  padding: 1rem 2rem;
  font-size: 1.1rem;
}

/* Images */
img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--border-radius-md);
}

.profile-image {
  border-radius: 50%;
  border: 4px solid white;
  box-shadow: 0 10px 20px var(--shadow-color);
  transition: transform var(--transition-normal);
}

.profile-image:hover {
  transform: scale(1.03);
}

/* Header */
header {
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 1000;
  box-shadow: 0 2px 10px var(--shadow-color);
  transition: transform var(--transition-normal);
}

.header-scrolled {
  transform: translateY(-100%);
}

.header-visible {
  transform: translateY(0);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
  padding: 0 var(--spacing-md);
  max-width: var(--max-width);
  margin: 0 auto;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--secondary-color);
  display: flex;
  align-items: center;
}

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

nav ul {
  display: flex;
  list-style: none;
  padding: 0;
  margin: 0;
}

nav li {
  margin-left: var(--spacing-lg);
}

nav a {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  position: relative;
  padding: var(--spacing-xs) 0;
}

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

nav a:hover, nav a:focus {
  color: var(--primary-color);
}

nav a:hover::after, nav a:focus::after, nav a[aria-current="page"]::after {
  width: 100%;
}

nav a[aria-current="page"] {
  color: var(--primary-color);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.hamburger-icon {
  display: block;
  position: relative;
  width: 30px;
  height: 20px;
}

.hamburger-icon::before,
.hamburger-icon::after,
.hamburger-icon span {
  content: '';
  position: absolute;
  left: 0;
  height: 3px;
  width: 100%;
  background-color: var(--primary-color);
  border-radius: 3px;
  transition: all var(--transition-normal);
}

.hamburger-icon::before {
  top: 0;
}

.hamburger-icon span {
  top: 50%;
  transform: translateY(-50%);
}

.hamburger-icon::after {
  bottom: 0;
}

.menu-toggle[aria-expanded="true"] .hamburger-icon::before {
  transform: translateY(8.5px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .hamburger-icon span {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] .hamburger-icon::after {
  transform: translateY(-8.5px) rotate(-45deg);
}

/* Hero section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-height) + var(--spacing-xl)) 0 var(--spacing-xl);
  position: relative;
  overflow: hidden;
  background: var(--background-color);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(34, 211, 238, 0.05) 100%);
  clip-path: polygon(70% 0, 100% 0, 100% 100%, 30% 100%);
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  max-width: 800px;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
  animation: fadeInUp 1.2s ease-out 0.4s;
  animation-fill-mode: both;
}

/* Main content */
main {
  padding-top: var(--header-height);
}

section {
  padding: var(--spacing-xl) 0;
  position: relative;
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-xl);
  width: fit-content;
}

.section-subtitle {
  text-align: center;
  font-size: 1.2rem;
  color: var(--text-light);
  max-width: 700px;
  margin: -1.5rem auto var(--spacing-xl);
}

/* Services section */
.services-section {
  background-color: var(--background-alt);
  padding: var(--spacing-xl) 0;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.service-card {
  background-color: var(--background-color);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: 0 5px 15px var(--shadow-color);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px var(--shadow-color);
}

.service-icon {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
}

/* Portfolio section */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--spacing-lg);
}

.portfolio-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius-md);
  box-shadow: 0 5px 15px var(--shadow-color);
}

.portfolio-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.portfolio-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.9), transparent);
  padding: var(--spacing-md);
  transform: translateY(100%);
  transition: transform var(--transition-normal);
}

.portfolio-item:hover .portfolio-image {
  transform: scale(1.05);
}

.portfolio-item:hover .portfolio-overlay {
  transform: translateY(0);
}

.portfolio-title {
  color: white;
  margin-bottom: var(--spacing-xs);
}

.portfolio-category {
  color: var(--accent-color);
  font-size: 0.9rem;
  margin-bottom: var(--spacing-md);
}

/* Skills section */
.skills-section {
  background-color: var(--background-alt);
}

.skills-container {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  justify-content: center;
}

.skill-tag {
  background-color: white;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius-sm);
  font-weight: 500;
  box-shadow: 0 2px 5px var(--shadow-color);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.skill-tag:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px var(--shadow-color);
}

/* Testimonials section */
.testimonials-slider {
  overflow: hidden;
  margin: 0 auto;
  max-width: 800px;
}

.testimonial {
  background-color: white;
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  box-shadow: 0 5px 15px var(--shadow-color);
  margin: 0 var(--spacing-md);
}

.testimonial-content {
  font-style: italic;
  position: relative;
  padding: 0 var(--spacing-md);
}

.testimonial-content::before,
.testimonial-content::after {
  content: '"';
  font-size: 3rem;
  color: var(--primary-light);
  line-height: 0;
  position: absolute;
}

.testimonial-content::before {
  left: -10px;
  top: 20px;
}

.testimonial-content::after {
  right: -10px;
  bottom: 0;
}

.testimonial-author {
  display: flex;
  align-items: center;
  margin-top: var(--spacing-md);
}

.testimonial-author-image {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  margin-right: var(--spacing-sm);
  object-fit: cover;
}

.testimonial-author-name {
  font-weight: 600;
  margin-bottom: 0;
}

.testimonial-author-title {
  color: var(--text-light);
  font-size: 0.9rem;
}

/* Contact section */
.contact-section {
  background-color: var(--background-alt);
}

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

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.contact-icon {
  font-size: 1.5rem;
  color: var(--primary-color);
}

form {
  width: 100%;
  background-color: white;
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  box-shadow: 0 5px 15px var(--shadow-color);
}

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

label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
  color: var(--secondary-color);
}

input, textarea, select {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
  background-color: var(--background-alt);
  color: var(--text-color);
}

input:focus, textarea:focus, select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
  outline: none;
}

.form-note {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-top: var(--spacing-sm);
}

.error-message {
  color: var(--error-color);
  font-size: 0.85rem;
  margin-top: var(--spacing-xs);
}

.success-message {
  color: var(--success-color);
  padding: var(--spacing-md);
  border-radius: var(--border-radius-sm);
  background-color: rgba(16, 185, 129, 0.1);
  margin-top: var(--spacing-md);
}

/* Footer */
footer {
  background-color: var(--secondary-color);
  color: white;
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--spacing-lg);
}

.footer-info p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--spacing-md);
}

.footer-links h4, .footer-social h4 {
  color: white;
  margin-bottom: var(--spacing-md);
  font-size: 1.2rem;
}

.footer-links ul, .footer-social ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

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

.footer-links a, .footer-social a {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-normal);
}

.footer-links a:hover, .footer-social a:hover {
  color: white;
}

.footer-social a {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-md);
  margin-top: var(--spacing-xl);
  text-align: center;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.9rem;
}

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

/* Media queries pour la responsivité */
@media (max-width: 992px) {
  html {
    font-size: 15px;
  }

  .container {
    padding: 0 var(--spacing-lg);
  }

  .contact-container {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
}

@media (max-width: 768px) {
  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2rem;
  }

  .hero {
    padding-top: calc(var(--header-height) + var(--spacing-lg));
  }

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

  .hero-buttons .btn {
    width: 100%;
    margin-bottom: var(--spacing-sm);
  }

  .menu-toggle {
    display: block;
  }

  .nav-menu {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: white;
    box-shadow: 0 5px 10px var(--shadow-color);
    padding: var(--spacing-md);
    flex-direction: column;
    transform: translateY(-100%);
    transition: transform var(--transition-normal);
    opacity: 0;
    visibility: hidden;
  }

  .nav-menu--visible {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    width: 100%;
  }

  nav ul {
    flex-direction: column;
  }

  nav li {
    margin: 0;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-color);
  }

  nav li:last-child {
    border-bottom: none;
  }

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

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

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  .services-grid,
  .team-grid {
    grid-template-columns: 1fr;
  }

  .container {
    padding: 0 var(--spacing-md);
  }
}/* Styles pour le logo OB Web Solution */
.logo {
  font-size: 1.5rem;/* Styles pour la page À propos */
  .about-hero {
    background-color: var(--background-alt);
    padding: calc(var(--header-height) + var(--spacing-xl)) 0 var(--spacing-lg);
    text-align: center;
  }

  .about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    margin: var(--spacing-lg) 0;
  }

  .about-image img {
    border-radius: var(--border-radius-lg);
    box-shadow: 0 10px 30px var(--shadow-color);
    transition: transform var(--transition-normal);
  }

  .about-image img:hover {
    transform: scale(1.02);
  }

  .values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
  }

  .value-card {
    background-color: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    box-shadow: 0 5px 15px var(--shadow-color);
    transition: transform var(--transition-normal);
    text-align: center;
  }

  .value-card:hover {
    transform: translateY(-10px);
  }

  .value-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
  }

  .about-legal {
    background-color: var(--background-alt);
    padding: var(--spacing-xl) 0;
  }

  .legal-content {
    background-color: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    box-shadow: 0 5px 15px var(--shadow-color);
  }

  .legal-content p {
    margin-bottom: var(--spacing-sm);
  }

  /* Media queries pour la responsivité */
  @media (max-width: 768px) {
    .about-grid {
      grid-template-columns: 1fr;
    }

    .about-image {
      order: -1;
      margin-bottom: var(--spacing-md);
    }
  }
  font-weight: 700;
  color: var(--secondary-color);
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo img {
  width: var(--logo-width);
  color: var(--primary-color);
  font-weight: 800;
  margin-right: 5px;
}

.logo span {
  color: var(--primary-color);
  font-weight: 800;
  margin-right: 5px;
}

/* Informations légales de l'entreprise */
.company-info, .legal-info {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
  margin-top: var(--spacing-sm);
}

.legal-info {
  margin-top: var(--spacing-sm);
  text-align: center;
}

/* Ajustement pour le footer */
.footer-bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-md);
  margin-top: var(--spacing-xl);
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.9rem;
}