/* ===================================
   AU BON SENS DES METS - STYLES CSS
   Design System & Layout Principal
   =================================== */

/* Variables CSS */
:root {
  /* Couleurs principales */
  --orange-primary: #E55722;
  --yellow-accent: #F4A261;
  --green-nature: #2A9D8F;
  --dark-text: #2C3E50;
  --light-gray: #ECF0F1;
  --white: #FFFFFF;
  --gray-border: #BDC3C7;
  
  /* Typographie */
  --font-primary: 'Inter', 'Segoe UI', sans-serif;
  --font-body: 'Source Sans Pro', Arial, sans-serif;
  --font-accent: 'Caveat', cursive;
  
  /* Espacements */
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 48px;
  --spacing-xl: 80px;
  
  /* Bordures */
  --border-radius: 8px;
  --border-radius-lg: 12px;
  
  /* Ombres */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  line-height: 1.6;
  color: var(--dark-text);
  background-color: var(--white);
}

/* Typographie */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: 2.5rem;
  color: var(--dark-text);
}

h2 {
  font-size: 2rem;
  color: var(--dark-text);
}

h3 {
  font-size: 1.5rem;
  color: var(--dark-text);
}

p {
  margin-bottom: var(--spacing-sm);
  font-size: 1.1rem;
}

/* Container et layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

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

/* Grid layouts */
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
  min-height: 500px;
}

.content-grid {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: var(--spacing-lg);
  align-items: center;
}

.content-grid-reverse {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: var(--spacing-lg);
  align-items: center;
}

.content-grid-three {
  display: grid;
  grid-template-columns: 2fr 1fr 2fr;
  gap: var(--spacing-md);
  align-items: center;
}

/* Boutons */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: var(--border-radius);
  font-weight: 600;
  text-decoration: none;
  text-align: center;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

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

.btn-primary:hover {
  background: #C94915;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

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

.btn-large {
  padding: 16px 32px;
  font-size: 1.1rem;
}

/* Images */
img {
  max-width: 100%;
  height: auto;
  border-radius: var(--border-radius);
  transition: opacity 0.3s ease;
}

/* Lazy loading states */
img.lazy {
  opacity: 0.6;
  filter: blur(2px);
}

img.loaded {
  opacity: 1;
  filter: none;
}

.hero-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
}

/* Navigation */
.header {
  background: var(--white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  transition: opacity 0.3s ease;
}

.logo:hover {
  opacity: 0.8;
}

.logo-image {
  width: 50px;
  height: 50px;
  object-fit: contain;
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(229, 87, 34, 0.2);
}

.logo-text {
  font-family: var(--font-accent);
  font-size: 1.6rem;
  color: var(--orange-primary);
  font-weight: bold;
  line-height: 1.2;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
}

.nav-links a {
  text-decoration: none;
  color: var(--dark-text);
  font-weight: 500;
  transition: color 0.3s ease;
}

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

/* Hero section */
.hero-section {
  background: linear-gradient(135deg, #fef7f0 0%, #fff 100%);
  padding: var(--spacing-xl) 0;
}

.hero-content h1 {
  margin-bottom: var(--spacing-md);
  color: var(--dark-text);
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--green-nature);
  margin-bottom: var(--spacing-lg);
  font-weight: 500;
}

/* Sections alternées */
.section-alt {
  background: var(--light-gray);
}

/* Points clés */
.key-points {
  list-style: none;
  margin: var(--spacing-md) 0;
}

.key-points li {
  position: relative;
  padding-left: 30px;
  margin-bottom: var(--spacing-sm);
}

.key-points li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--green-nature);
  font-weight: bold;
  font-size: 1.2rem;
}

/* Carrousels */
.carousel-container {
  overflow: hidden;
  margin: var(--spacing-lg) 0;
}

.carousel-track {
  display: flex;
  gap: var(--spacing-md);
  animation: scroll 30s linear infinite;
}

.client-logo {
  height: 60px;
  width: auto;
  max-width: 120px;
  opacity: 0.7;
  transition: all 0.3s ease;
  filter: grayscale(100%);
  object-fit: contain;
}

.client-logo:hover {
  opacity: 1;
  filter: grayscale(0%);
  transform: scale(1.05);
}

@keyframes scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* Partenaires */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.partner-link {
  text-decoration: none;
  color: var(--dark-text);
  padding: var(--spacing-sm);
  border-radius: var(--border-radius);
  transition: all 0.3s ease;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  min-height: 120px;
  justify-content: center;
}

.partner-link:hover {
  background: var(--light-gray);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.partner-with-logo {
  gap: 16px;
  min-height: 140px;
}

.partner-logo {
  height: 50px;
  width: auto;
  max-width: 100px;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.partner-link:hover .partner-logo {
  transform: scale(1.1);
}

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

/* Formulaire */
.form-container {
  background: var(--white);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  margin: var(--spacing-lg) 0;
}

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

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
  color: var(--dark-text);
}

.form-control {
  width: 100%;
  padding: 12px;
  border: 2px solid var(--gray-border);
  border-radius: var(--border-radius);
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--orange-primary);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-sm);
}

/* Footer */
.footer {
  background: var(--dark-text);
  color: var(--white);
  text-align: center;
  padding: var(--spacing-lg) 0;
}

.footer-content {
  margin-bottom: var(--spacing-md);
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: var(--spacing-md);
  justify-content: center;
}

.footer-logo-image {
  width: 40px;
  height: 40px;
  object-fit: contain;
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.footer h3 {
  color: var(--orange-primary);
  margin-bottom: var(--spacing-sm);
}

.footer p, .footer a {
  color: var(--light-gray);
  text-decoration: none;
}

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

/* Macaron Ecotable */
.ecotable-badge {
  display: inline-block;
  margin: var(--spacing-sm) 0;
}

.ecotable-badge img {
  height: 60px;
  width: auto;
}

.ecotable-badge-large {
  display: flex;
  justify-content: center;
  align-items: center;
}

.ecotable-badge-large img {
  height: 240px;
  width: auto;
}

/* Prestations grid */
.prestations-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.prestation-item {
  background: var(--white);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s ease;
}

.prestation-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero-grid,
  .content-grid,
  .content-grid-reverse,
  .content-grid-three {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .hero-image {
    order: -1;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
  
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  .section-padding {
    padding: var(--spacing-lg) 0;
  }
  
  .nav-links {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: var(--white);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    font-size: 1.2rem;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    display: flex;
  }
  
  .nav-links.mobile-open {
    transform: translateX(0);
  }
  
  .hamburger {
    display: block;
    background: none;
    border: none;
    font-size: 1.8rem;
    color: var(--dark-text);
    cursor: pointer;
    z-index: 2001;
    position: relative;
    padding: 10px;
    line-height: 1;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .btn {
    width: 100%;
    margin-bottom: var(--spacing-sm);
  }
  
  .carousel-track {
    animation-duration: 20s;
  }
  
  .ecotable-badge-large img {
    height: 180px;
  }
}

@media (max-width: 480px) {
  .hero-content h1 {
    font-size: 1.8rem;
  }
  
  .section-padding {
    padding: var(--spacing-md) 0;
  }
  
  .prestations-list {
    grid-template-columns: 1fr;
  }
  
  .client-logo {
    height: 45px;
    max-width: 100px;
  }
  
  .partner-logo {
    height: 40px;
    max-width: 80px;
  }
  
  .partners-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-sm);
  }
  
  /* Logo responsive */
  .logo-image {
    width: 40px;
    height: 40px;
  }
  
  .logo-text {
    font-size: 1.4rem;
  }
  
  .footer-logo {
    flex-direction: column;
    gap: 8px;
  }
  
  .footer-logo-image {
    width: 35px;
    height: 35px;
  }
}

/* États de focus pour l'accessibilité */
.btn:focus,
.form-control:focus,
.nav-links a:focus {
  outline: 2px solid var(--orange-primary);
  outline-offset: 2px;
}

/* Skip link pour l'accessibilité */
.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--dark-text);
  color: var(--white);
  padding: 8px;
  text-decoration: none;
  z-index: 1000;
  border-radius: var(--border-radius);
}

.skip-link:focus {
  top: 6px;
}

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

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

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

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }