/* Stylesheet - Biowood Media Professionnel de la Biomasse */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Lora:ital,wght@0,400;0,600;0,700;1,400&display=swap');

:root {
  --primary: #1E3F20;         /* Vert forêt industriel */
  --primary-light: #2D5A30;
  --secondary: #8B7355;       /* Brun écorce sobre */
  --secondary-light: #A08B73;
  --dark: #1F2421;            /* Gris très foncé / presque noir */
  --light: #F9FAFB;           /* Blanc cassé pour le fond */
  --white: #FFFFFF;
  --gray-border: #E5E7EB;     /* Bordures fines */
  --gray-text: #4B5563;       /* Texte secondaire */
  --gray-light: #F3F4F6;      /* Arrière-plans secondaires */
  --font-serif: 'Lora', Georgia, serif;
  --font-sans: 'Inter', system-ui, sans-serif;
  --transition: all 0.2s ease-in-out;
  --max-width: 1200px;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--light);
  color: var(--dark);
  line-height: 1.6;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden; /* Garantit l'absence totale de défilement horizontal sur l'ensemble du site */
}

/* Base Layout */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

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

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

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 700;
  color: var(--primary);
  line-height: 1.25;
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

h2 {
  font-size: 1.8rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--primary);
}

h3 {
  font-size: 1.4rem;
  margin: 1.5rem 0 1rem 0;
}

p {
  margin-bottom: 1.25rem;
  color: var(--dark);
}

/* Header & Nav */
.top-bar {
  background-color: var(--primary);
  color: var(--white);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 6px 0;
  font-weight: 600;
}

.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.main-header {
  background-color: var(--white);
  border-bottom: 1px solid var(--gray-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 20px;
  position: relative;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  background-color: var(--primary);
  color: var(--white);
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
}

.logo-title {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.02em;
}

.logo-subtitle {
  font-size: 10px;
  color: var(--gray-text);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
  margin-top: -2px;
}

/* Menu Toggle Button for mobile */
.menu-toggle {
  display: none; /* Hidden by default on desktop */
  background: none;
  border: none;
  color: var(--primary);
  cursor: pointer;
  padding: 8px;
  align-items: center;
  justify-content: center;
}

/* Nav component styles */
.main-nav {
  display: flex;
  align-items: center;
}

.nav-links {
  display: flex;
  gap: 20px;
  list-style: none;
  align-items: center;
}

.nav-link {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--dark);
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}

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

.nav-cta {
  padding: 8px 16px;
  font-size: 12px !important;
}

.btn-secondary {
  background-color: var(--secondary);
  color: var(--white);
  padding: 8px 16px;
  font-weight: 600;
  font-size: 13px;
  border-radius: 4px;
  text-transform: uppercase;
  transition: var(--transition);
}

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

/* Mobile responsive styles for nav - breakpoint raised to 1150px to prevent overlapping on any device */
@media (max-width: 1150px) {
  .menu-toggle {
    display: flex; /* Show burger on mobile/tablets */
  }

  .main-nav {
    display: none !important; /* STRICTLY RETRACTED BY DEFAULT ON ALL VIEWPORTS UNDER 1150px */
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--white);
    border-top: 1px solid var(--gray-border);
    border-bottom: 3px solid var(--primary);
    box-shadow: 0 8px 16px rgba(0,0,0,0.08);
    padding: 20px;
    z-index: 999;
  }

  .main-nav.open {
    display: block !important; /* Force block layout on click toggle */
  }

  .nav-links {
    flex-direction: column;
    align-items: flex-start;
    gap: 15px;
    width: 100%;
  }

  .nav-link {
    display: block;
    width: 100%;
    padding: 10px 0;
    border-bottom: 1px solid var(--gray-light);
  }

  .nav-link.active, .nav-link:hover {
    border-bottom-color: var(--primary);
    padding-left: 5px;
  }

  .nav-cta-item {
    width: 100%;
    margin-top: 10px;
  }

  .nav-cta {
    display: block;
    text-align: center;
    width: 100%;
  }
}

/* Home Layout */
.home-grid {
  display: grid;
  grid-template-columns: 8fr 4fr;
  gap: 30px;
  margin: 30px 0;
}

@media (max-width: 992px) {
  .home-grid {
    grid-template-columns: 1fr;
  }
}

/* Chiffres Clés */
.key-stats {
  background-color: var(--primary);
  color: var(--white);
  padding: 30px;
  border-radius: 4px;
  margin-bottom: 30px;
}

.key-stats h2 {
  color: var(--white);
  border-bottom: 1px solid rgba(255,255,255,0.2);
  margin-bottom: 20px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}

.stat-card {
  text-align: center;
  padding: 15px;
  border-right: 1px solid rgba(255,255,255,0.1);
}

.stat-card:last-child {
  border-right: none;
}

@media (max-width: 576px) {
  .stat-card {
    border-right: none;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 15px;
  }
  .stat-card:last-child {
    border-bottom: none;
  }
}

.stat-value {
  font-size: 32px;
  font-weight: 700;
  font-family: var(--font-serif);
  color: var(--secondary-light);
}

.stat-label {
  font-size: 12px;
  text-transform: uppercase;
  font-weight: 500;
  margin-top: 5px;
  color: rgba(255,255,255,0.85);
}

/* Observatoire / Tableaux */
.observatory-widget {
  background-color: var(--white);
  padding: 24px;
  border: 1px solid var(--gray-border);
  border-radius: 4px;
  margin-bottom: 30px;
}

.observatory-meta {
  font-size: 12px;
  color: var(--gray-text);
  margin-bottom: 15px;
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid var(--gray-border);
  padding-bottom: 8px;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 15px 0 25px 0;
  font-size: 14px;
}

th {
  background-color: var(--primary);
  color: var(--white);
  font-weight: 600;
  text-align: left;
  padding: 10px 14px;
}

td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--gray-border);
}

tbody tr:nth-child(even) {
  background-color: var(--light);
}

/* SVG Chart CSS stylé */
.mini-chart {
  background-color: var(--white);
  border: 1px solid var(--gray-border);
  border-radius: 4px;
  padding: 15px;
  margin-top: 20px;
}

.mini-chart-title {
  font-family: var(--font-serif);
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 10px;
}

/* Articles Cards */
.article-list-section {
  background-color: var(--white);
  padding: 24px;
  border: 1px solid var(--gray-border);
  border-radius: 4px;
}

.articles-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.article-row-card {
  display: grid;
  grid-template-columns: 3fr 9fr;
  gap: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--gray-border);
}

.article-row-card:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

@media (max-width: 576px) {
  .article-row-card {
    grid-template-columns: 1fr;
    gap: 15px;
  }
}

.article-category-tag {
  background-color: var(--gray-light);
  color: var(--primary);
  padding: 4px 8px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  border-radius: 2px;
  display: inline-block;
  margin-bottom: 8px;
}

.article-row-title {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 6px;
  line-height: 1.3;
}

.article-row-title a {
  color: var(--dark);
}

.article-row-title a:hover {
  color: var(--primary);
}

.article-row-excerpt {
  font-size: 13.5px;
  color: var(--gray-text);
  margin-bottom: 8px;
}

.article-row-meta {
  font-size: 11px;
  color: var(--gray-text);
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

/* Catégories Cards Grid */
.categories-showcase {
  margin: 40px 0;
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.category-card {
  background-color: var(--white);
  border: 1px solid var(--gray-border);
  padding: 20px;
  border-radius: 4px;
  transition: var(--transition);
}

.category-card:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 6px rgba(0,0,0,0.02);
}

.category-card h3 {
  font-family: var(--font-serif);
  font-size: 16px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--gray-light);
  padding-bottom: 6px;
}

.category-card p {
  font-size: 13px;
  color: var(--gray-text);
  margin-bottom: 15px;
  height: 65px;
  overflow: hidden;
}

.category-card .btn-link {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--secondary);
}

/* Section Focus Transition Énergétique (Énergie) */
.mag-section {
  background-color: var(--white);
  border: 1px solid var(--gray-border);
  border-radius: 4px;
  padding: 35px 24px;
  margin: 40px 0;
}

.mag-title-block {
  text-align: center;
  margin-bottom: 30px;
}

.mag-title-block h2 {
  border-bottom: none;
  display: inline-block;
  padding-bottom: 0;
  position: relative;
  font-size: 28px;
  margin-bottom: 10px;
}

.mag-title-block h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background-color: var(--secondary);
  margin: 10px auto 0 auto;
}

.mag-subtitle {
  font-size: 14px;
  color: var(--gray-text);
  max-width: 600px;
  margin: 0 auto;
}

.mag-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 992px) {
  .mag-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 576px) {
  .mag-grid {
    grid-template-columns: 1fr;
  }
}

.mag-card {
  background-color: var(--light);
  border: 1px solid var(--gray-border);
  border-radius: 4px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.mag-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
  box-shadow: 0 8px 16px rgba(0,0,0,0.05);
}

.mag-image-container {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* Ratio 16:9 */
  background-color: var(--gray-light);
  overflow: hidden;
}

.mag-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.mag-card:hover .mag-img {
  transform: scale(1.05);
}

.mag-card-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.mag-card-meta {
  font-size: 11px;
  color: var(--gray-text);
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
}

.mag-card-title {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 12px;
  color: var(--primary);
}

.mag-card-title a {
  color: var(--primary);
}

.mag-card-title a:hover {
  color: var(--primary-light);
}

.mag-card-desc {
  font-size: 13px;
  color: var(--gray-text);
  margin-bottom: 18px;
  line-height: 1.5;
  flex-grow: 1;
}

.mag-card-footer {
  border-top: 1px solid var(--gray-border);
  padding-top: 15px;
  margin-top: auto;
}

.mag-btn-read {
  font-size: 12px;
  font-weight: 600;
  color: var(--secondary);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 5px;
}

.mag-btn-read:hover {
  color: var(--primary);
}

/* Article Template Style */
.article-container {
  display: grid;
  grid-template-columns: 8fr 4fr;
  gap: 30px;
  margin: 40px 0;
}

@media (max-width: 992px) {
  .article-container {
    grid-template-columns: 1fr;
  }
}

.article-main {
  background-color: var(--white);
  padding: 40px;
  border: 1px solid var(--gray-border);
  border-radius: 4px;
}

@media (max-width: 768px) {
  .article-main {
    padding: 20px;
  }
}

.article-header {
  margin-bottom: 30px;
  border-bottom: 1px solid var(--gray-border);
  padding-bottom: 20px;
}

.article-meta-large {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 12px;
  color: var(--gray-text);
  margin-top: 15px;
}

.article-body {
  font-family: var(--font-serif);
  font-size: 16px;
  line-height: 1.7;
}

.article-body h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  margin: 30px 0 15px 0;
  border-left: 3px solid var(--primary);
  padding-left: 12px;
}

.article-body ul, .article-body ol {
  margin-bottom: 20px;
  padding-left: 20px;
}

.article-body li {
  margin-bottom: 8px;
}

.article-body pre {
  background-color: var(--gray-light);
  padding: 15px;
  border-radius: 4px;
  font-family: monospace;
  font-size: 13px;
  overflow-x: auto;
  margin-bottom: 20px;
  border-left: 3px solid var(--secondary);
}

.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.sidebar-widget {
  background-color: var(--white);
  border: 1px solid var(--gray-border);
  padding: 20px;
  border-radius: 4px;
}

.sidebar-widget h3 {
  font-size: 15px;
  border-bottom: 1px solid var(--gray-border);
  padding-bottom: 8px;
  margin-top: 0;
  margin-bottom: 15px;
}

/* List with tiny bullets */
.bullet-list-clean {
  list-style: none;
}

.bullet-list-clean li {
  padding: 8px 0;
  border-bottom: 1px solid var(--gray-light);
  font-size: 13px;
}

.bullet-list-clean li:last-child {
  border-bottom: none;
}

/* Producteurs styles (Annuaire) */
.producer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 25px;
  margin: 30px 0;
}

.producer-card {
  background-color: var(--white);
  border: 1px solid var(--gray-border);
  border-radius: 4px;
  overflow: hidden;
  transition: var(--transition);
}

.producer-card:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 10px rgba(0,0,0,0.03);
}

.producer-card-header {
  background-color: var(--gray-light);
  padding: 15px 20px;
  border-bottom: 1px solid var(--gray-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.producer-card-header h3 {
  font-size: 16px;
  margin: 0;
}

.producer-tag {
  font-size: 10px;
  background-color: var(--primary);
  color: var(--white);
  padding: 2px 6px;
  border-radius: 2px;
  text-transform: uppercase;
  font-weight: 600;
}

.producer-card-body {
  padding: 20px;
}

.producer-field {
  font-size: 13px;
  margin-bottom: 10px;
  display: flex;
  gap: 10px;
}

.producer-field-label {
  font-weight: 600;
  width: 100px;
  color: var(--gray-text);
  flex-shrink: 0;
}

.producer-desc {
  font-size: 13px;
  margin-top: 15px;
  border-top: 1px solid var(--gray-light);
  padding-top: 12px;
  color: var(--gray-text);
}

/* Formulaire Contact */
.contact-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: 15px;
  margin-top: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.form-group label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
}

.form-control {
  font-family: var(--font-sans);
  font-size: 14px;
  padding: 10px 12px;
  border: 1px solid var(--gray-border);
  border-radius: 4px;
  background-color: var(--light);
}

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

.btn-primary {
  font-family: var(--font-sans);
  background-color: var(--primary);
  color: var(--white);
  border: none;
  padding: 12px 24px;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  border-radius: 4px;
  cursor: pointer;
  display: inline-block;
  align-self: flex-start;
  transition: var(--transition);
}

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

/* Footer style */
.main-footer {
  background-color: var(--primary);
  color: var(--white);
  padding: 50px 0 20px 0;
  margin-top: 60px;
  border-top: 4px solid var(--secondary);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h3 {
  color: var(--white);
  font-size: 16px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  padding-bottom: 8px;
  margin-bottom: 15px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 8px;
}

.footer-links a {
  color: rgba(255,255,255,0.8);
  font-size: 13px;
}

.footer-links a:hover {
  color: var(--white);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: rgba(255,255,255,0.6);
  flex-wrap: wrap;
  gap: 15px;
}

.footer-brand h4 {
  color: var(--white);
  font-family: var(--font-serif);
  font-size: 20px;
  margin-bottom: 10px;
}

.footer-brand p {
  color: rgba(255,255,255,0.7);
  font-size: 12px;
}

/* Animations */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(15px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.reveal-on-scroll.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Custom design components */
.badge-certif {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background-color: var(--gray-light);
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 500;
  color: var(--gray-text);
  border: 1px solid var(--gray-border);
}

.badge-certif.gold {
  background-color: #FDF2E9;
  color: #873A1D;
  border-color: #F5CBA7;
}

/* Box info factuelle */
.fact-box {
  background-color: var(--gray-light);
  border-left: 4px solid var(--primary);
  padding: 15px;
  margin: 15px 0;
  font-size: 13px;
}

.fact-box-title {
  font-weight: 600;
  margin-bottom: 5px;
  color: var(--primary);
}

/* Styles pour les illustrations d'articles */
.article-thumbnail-container {
  width: 100%;
  display: flex;
  flex-direction: column;
}

.article-thumbnail {
  width: 100%;
  height: 100%;
  min-height: 110px;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--gray-border);
  background-color: var(--gray-light);
  transition: transform 0.3s ease;
}

.article-row-card:hover .article-thumbnail {
  transform: scale(1.03);
}

.article-main-image {
  width: 100%;
  max-height: 400px;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--gray-border);
  margin-bottom: 25px;
  background-color: var(--gray-light);
}

/* Amélioration contraste - En-tête Dossier de référence */
.hero-category h1 {
  color: var(--white) !important;
}