/* ===================================
   GRENAT BTP - Styles CSS Principaux
   =================================== */

/* Variables CSS pour la palette de couleurs */
:root {
  --primary-color: #1B4D3E;
  --secondary-color: #FF8C42;
  --text-color: #2D3436;
  --bg-light: #F8F9FA;
  --accent-color: #FFC107;
  --white: #FFFFFF;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
  --transition: all 0.3s ease;
}

/* Reset et styles de base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Poppins', sans-serif;
  color: var(--text-color);
  line-height: 1.6;
  background-color: var(--white);
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

/* Conteneur principal */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.container-wide {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ===================================
   HEADER ET NAVIGATION
   =================================== */
header {
  background-color: var(--white);
  box-shadow: var(--shadow);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: var(--transition);
}

header.scrolled {
  box-shadow: var(--shadow-lg);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
}

.logo i {
  color: var(--secondary-color);
  font-size: 2rem;
}

.nav-menu {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-menu a {
  color: var(--text-color);
  font-weight: 500;
  position: relative;
  padding: 0.5rem 0;
}

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

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

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

/* Menu Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background-color: var(--primary-color);
  transition: var(--transition);
  border-radius: 3px;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

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

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* ===================================
   SECTION HERO
   =================================== */
.hero {
  background: linear-gradient(135deg, var(--primary-color) 0%, #2d6a4f 100%);
  color: var(--white);
  padding: 150px 0 100px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,154.7C960,171,1056,181,1152,165.3C1248,149,1344,107,1392,85.3L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
  background-size: cover;
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  font-weight: 700;
  animation: fadeInUp 0.8s ease;
}

.hero .tagline {
  font-size: 1.3rem;
  margin-bottom: 1rem;
  color: var(--accent-color);
  font-weight: 600;
  animation: fadeInUp 0.8s ease 0.2s backwards;
}

.hero p {
  font-size: 1.1rem;
  max-width: 700px;
  margin: 0 auto 2rem;
  opacity: 0.9;
  animation: fadeInUp 0.8s ease 0.4s backwards;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.6s backwards;
}

/* Boutons */
.btn {
  display: inline-block;
  padding: 1rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  font-size: 1rem;
}

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

.btn-primary:hover {
  background-color: #e67a2e;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

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

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

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

/* ===================================
   SECTIONS GÉNÉRALES
   =================================== */
section {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title h2 {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
  position: relative;
  display: inline-block;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--secondary-color), var(--accent-color));
  border-radius: 2px;
}

.section-title p {
  color: var(--text-color);
  opacity: 0.8;
  max-width: 600px;
  margin: 1.5rem auto 0;
}

/* Background alterné */
section:nth-child(even) {
  background-color: var(--bg-light);
}

/* ===================================
   GRILLE DE CARTES
   =================================== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.card {
  background-color: var(--white);
  padding: 2rem;
  border-radius: 10px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  text-align: center;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.card i {
  font-size: 3rem;
  color: var(--secondary-color);
  margin-bottom: 1rem;
}

.card h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
  font-size: 1.3rem;
}

.card p {
  color: var(--text-color);
  opacity: 0.8;
  line-height: 1.6;
}

/* ===================================
   COMPTEURS ANIMÉS
   =================================== */
.stats {
  background: linear-gradient(135deg, var(--primary-color), #2d6a4f);
  color: var(--white);
  padding: 60px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  text-align: center;
}

.stat-item {
  padding: 1rem;
}

.stat-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent-color);
  display: block;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 1.1rem;
  opacity: 0.9;
}

/* ===================================
   TÉMOIGNAGES
   =================================== */
.testimonials {
  position: relative;
  padding: 60px 0;
}

.testimonial-slider {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}

.testimonial {
  background-color: var(--white);
  padding: 3rem;
  border-radius: 15px;
  box-shadow: var(--shadow-lg);
  text-align: center;
  display: none;
}

.testimonial.active {
  display: block;
  animation: fadeIn 0.5s ease;
}

.testimonial-text {
  font-size: 1.1rem;
  font-style: italic;
  margin-bottom: 1.5rem;
  color: var(--text-color);
  line-height: 1.8;
}

.testimonial-author {
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.testimonial-position {
  opacity: 0.7;
  font-size: 0.9rem;
}

.stars {
  color: var(--accent-color);
  font-size: 1.2rem;
  margin-bottom: 1rem;
}

.slider-controls {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
}

.slider-btn {
  background-color: var(--primary-color);
  color: var(--white);
  border: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.slider-btn:hover {
  background-color: var(--secondary-color);
  transform: scale(1.1);
}

/* ===================================
   GALERIE DE PROJETS
   =================================== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.project-card {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  background-color: var(--bg-light);
  height: 300px;
}

.project-card:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-lg);
}

.project-image {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 4rem;
}

.project-info {
  padding: 1.5rem;
}

.project-info h3 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.project-info p {
  color: var(--text-color);
  opacity: 0.8;
  font-size: 0.9rem;
}

/* ===================================
   FORMULAIRE DE CONTACT
   =================================== */
.contact-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.contact-form {
  background-color: var(--white);
  padding: 2rem;
  border-radius: 10px;
  box-shadow: var(--shadow);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--primary-color);
  font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.8rem;
  border: 2px solid #e0e0e0;
  border-radius: 5px;
  font-family: 'Poppins', sans-serif;
  transition: var(--transition);
  font-size: 1rem;
}

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

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

.form-error {
  color: #e74c3c;
  font-size: 0.85rem;
  margin-top: 0.3rem;
  display: none;
}

.form-group.error input,
.form-group.error select,
.form-group.error textarea {
  border-color: #e74c3c;
}

.form-group.error .form-error {
  display: block;
}

.form-success {
  background-color: #d4edda;
  color: #155724;
  padding: 1rem;
  border-radius: 5px;
  margin-bottom: 1rem;
  display: none;
  border: 1px solid #c3e6cb;
}

.form-success.show {
  display: block;
  animation: fadeIn 0.5s ease;
}

/* ===================================
   INFORMATIONS DE CONTACT
   =================================== */
.contact-info {
  background-color: var(--white);
  padding: 2rem;
  border-radius: 10px;
  box-shadow: var(--shadow);
}

.contact-info h3 {
  color: var(--primary-color);
  margin-bottom: 1.5rem;
}

.info-item {
  display: flex;
  align-items: start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.info-item i {
  color: var(--secondary-color);
  font-size: 1.5rem;
  margin-top: 3px;
}

.info-item div h4 {
  color: var(--primary-color);
  margin-bottom: 0.3rem;
}

.info-item div p {
  color: var(--text-color);
  opacity: 0.8;
}

.map-container {
  margin-top: 2rem;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.map-container iframe {
  width: 100%;
  height: 300px;
  border: none;
}

/* ===================================
   BOUTONS D'ACTION RAPIDE
   =================================== */
.quick-actions {
  position: fixed;
  bottom: 30px;
  right: 30px;
  display: flex;
  flex-direction: column;
  gap: 15px;
  z-index: 999;
}

.quick-btn {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.5rem;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
  cursor: pointer;
}

.quick-btn:hover {
  transform: scale(1.1);
}

.whatsapp-btn {
  background-color: #25D366;
}

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

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

.scroll-top {
  background-color: var(--text-color);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.scroll-top.show {
  opacity: 1;
  visibility: visible;
}

/* ===================================
   FOOTER
   =================================== */
footer {
  background-color: var(--primary-color);
  color: var(--white);
  padding: 60px 0 30px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-section h3 {
  margin-bottom: 1.5rem;
  color: var(--accent-color);
}

.footer-section p,
.footer-section a {
  opacity: 0.9;
  margin-bottom: 0.8rem;
  display: block;
}

.footer-section a:hover {
  color: var(--secondary-color);
}

.footer-section i {
  margin-right: 0.5rem;
  color: var(--secondary-color);
}

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.social-links a {
  width: 40px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.social-links a:hover {
  background-color: var(--secondary-color);
  transform: translateY(-3px);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  opacity: 0.8;
}

/* ===================================
   ANIMATIONS
   =================================== */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===================================
   PAGE À PROPOS
   =================================== */
.about-intro {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 3rem;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.team-member {
  background-color: var(--white);
  padding: 2rem;
  border-radius: 10px;
  box-shadow: var(--shadow);
  text-align: center;
  transition: var(--transition);
}

.team-member:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.team-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  margin: 0 auto 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 3rem;
}

.team-member h3 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.team-member .position {
  color: var(--secondary-color);
  font-weight: 500;
  margin-bottom: 1rem;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.value-card {
  background-color: var(--white);
  padding: 2rem;
  border-radius: 10px;
  box-shadow: var(--shadow);
  text-align: center;
  border-top: 4px solid var(--secondary-color);
  transition: var(--transition);
}

.value-card:hover {
  transform: translateY(-5px);
}

.value-card i {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.value-card h3 {
  color: var(--primary-color);
  margin-bottom: 0.8rem;
}

/* ===================================
   PAGE SERVICES
   =================================== */
.services-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.service-item {
  background-color: var(--white);
  padding: 2rem;
  border-radius: 10px;
  box-shadow: var(--shadow);
  border-left: 5px solid var(--secondary-color);
  transition: var(--transition);
}

.service-item:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-lg);
}

.service-item i {
  font-size: 2.5rem;
  color: var(--secondary-color);
  margin-bottom: 1rem;
  display: block;
}

.service-item h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.tool-item {
  background-color: var(--white);
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: var(--shadow);
  text-align: center;
  transition: var(--transition);
}

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

.tool-item i {
  font-size: 2rem;
  color: var(--primary-color);
  margin-bottom: 0.8rem;
}

.tool-item h4 {
  color: var(--primary-color);
  font-size: 1rem;
}

/* ===================================
   RESPONSIVE MOBILE
   =================================== */
@media (max-width: 768px) {
  /* Navigation mobile */
  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 70px;
    right: -100%;
    background-color: var(--white);
    flex-direction: column;
    width: 80%;
    max-width: 300px;
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    height: calc(100vh - 70px);
    overflow-y: auto;
  }

  .nav-menu.active {
    right: 0;
  }

  .nav-menu a {
    padding: 1rem 0;
    width: 100%;
    border-bottom: 1px solid #e0e0e0;
  }

  /* Hero */
  .hero {
    padding: 120px 0 80px;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero .tagline {
    font-size: 1.1rem;
  }

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

  .cta-buttons {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    max-width: 300px;
  }

  /* Sections */
  section {
    padding: 60px 0;
  }

  .section-title h2 {
    font-size: 1.8rem;
  }

  /* Cartes */
  .cards-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  /* Statistiques */
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }

  .stat-number {
    font-size: 2.5rem;
  }

  /* Contact */
  .contact-section {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  /* Quick actions */
  .quick-actions {
    bottom: 20px;
    right: 20px;
  }

  .quick-btn {
    width: 50px;
    height: 50px;
    font-size: 1.2rem;
  }

  /* Footer */
  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  /* Services */
  .services-list {
    grid-template-columns: 1fr;
  }

  /* Projets */
  .projects-grid {
    grid-template-columns: 1fr;
  }

  /* Équipe */
  .team-grid {
    grid-template-columns: 1fr;
  }

  /* Valeurs */
  .values-grid {
    grid-template-columns: 1fr;
  }

  /* Outils */
  .tools-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .logo {
    font-size: 1.2rem;
  }

  .hero h1 {
    font-size: 1.6rem;
  }

  .section-title h2 {
    font-size: 1.5rem;
  }

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

  .testimonial {
    padding: 2rem 1.5rem;
  }
}

/* ===================================
   PROCESSUS DE TRAVAIL
   =================================== */
.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
  position: relative;
}

.process-step {
  text-align: center;
  position: relative;
}

.step-number {
  width: 60px;
  height: 60px;
  background-color: var(--secondary-color);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 auto 1rem;
}

.process-step h4 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.process-step p {
  opacity: 0.8;
  font-size: 0.9rem;
}

/* Utilitaires */
.text-center {
  text-align: center;
}

.mt-3 {
  margin-top: 3rem;
}

.mb-3 {
  margin-bottom: 3rem;
}