/* === Variables === */
:root {
  --vert:       #1a5c2e;
  --vert-clair: #2d8a44;
  --ambre:      #e8a020;
  --ambre-fonce:#c4881a;
  --texte:      #2d2d2d;
  --gris-clair: #f4f7f4;
  --gris-bord:  #dde6dd;
  --blanc:      #ffffff;
  --radius:     6px;
  --shadow:     0 2px 8px rgba(0,0,0,0.08);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Segoe UI', Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--texte);
  background: var(--blanc);
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

/* === Container === */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* =====================
   HEADER
   ===================== */
.site-header {
  background: var(--blanc);
  border-bottom: 3px solid var(--ambre);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 90px;
}

.logo img { width: 200px; height: auto; }

/* Nav desktop */
.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--vert);
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--ambre);
  border-bottom-color: var(--ambre);
}

/* Burger button */
.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.burger span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--vert);
  border-radius: 2px;
  transition: all 0.3s;
}

/* Nav mobile */
.nav-mobile {
  display: none;
  flex-direction: column;
  background: var(--blanc);
  border-top: 1px solid var(--gris-bord);
  padding: 1rem 1.25rem;
}

.nav-mobile.open { display: flex; }

.nav-mobile a {
  font-weight: 600;
  color: var(--vert);
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--gris-bord);
  transition: color 0.2s;
}

.nav-mobile a:last-child { border-bottom: none; }
.nav-mobile a:hover { color: var(--ambre); }

/* =====================
   HERO
   ===================== */
.hero {
  background: linear-gradient(135deg, var(--vert) 0%, var(--vert-clair) 100%);
  color: var(--blanc);
  padding: 2.5rem 0 2rem;
  text-align: center;
}

.hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.25;
}

.hero h1 span { color: var(--ambre); }

.hero .lead {
  font-size: clamp(1rem, 2vw, 1.2rem);
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto 2rem;
}

.btn {
  display: inline-block;
  background: var(--ambre);
  color: var(--blanc);
  font-weight: 700;
  padding: 0.8rem 2rem;
  border-radius: var(--radius);
  transition: background 0.2s, transform 0.1s;
}

.btn:hover {
  background: var(--ambre-fonce);
  transform: translateY(-1px);
}

/* =====================
   GRILLE ARTICLES
   ===================== */
.section {
  padding: 3.5rem 0;
}

.section-titre {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--vert);
  margin-bottom: 0.5rem;
}

.section-sous-titre {
  color: #666;
  margin-bottom: 2rem;
}

.grille {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.carte {
  background: var(--blanc);
  border: 1px solid var(--gris-bord);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}

.carte:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.12);
}

.carte img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.carte-corps {
  padding: 1.25rem;
}

.carte-categorie {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ambre);
  margin-bottom: 0.5rem;
}

.carte-titre {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--vert);
  margin-bottom: 0.5rem;
  line-height: 1.35;
}

.carte-extrait {
  font-size: 0.9rem;
  color: #555;
  margin-bottom: 1rem;
}

.lien-lire {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--ambre);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}

.lien-lire:hover { border-bottom-color: var(--ambre); }

/* Liens dans le corps des articles */
.article-corps a {
  color: var(--vert-clair);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 500;
}
.article-corps a:hover {
  color: var(--ambre);
}

/* =====================
   BANDEAU INFO
   ===================== */
.bandeau {
  background: var(--gris-clair);
  border-top: 1px solid var(--gris-bord);
  border-bottom: 1px solid var(--gris-bord);
  padding: 2.5rem 0;
}

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

.bandeau-item .icone {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.bandeau-item strong {
  display: block;
  font-size: 1rem;
  color: var(--vert);
  margin-bottom: 0.25rem;
}

.bandeau-item p {
  font-size: 0.85rem;
  color: #666;
}

/* =====================
   FOOTER
   ===================== */
.site-footer {
  background: var(--vert);
  color: #b8d8c0;
  padding: 3rem 0 1.5rem;
  margin-top: 4rem;
}

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

.footer-col h3 {
  color: var(--blanc);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.footer-col a {
  font-size: 0.9rem;
  color: #b8d8c0;
  transition: color 0.2s;
}

.footer-col a:hover { color: var(--ambre); }

.footer-bas {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 1.5rem;
  text-align: center;
  font-size: 0.85rem;
  color: #7aaa8a;
}

/* =====================
   RESPONSIVE
   ===================== */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .burger { display: flex; }

  .hero { padding: 3rem 0 2.5rem; }

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

  .footer-grille {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .footer-grille {
    grid-template-columns: 1fr;
  }

  .bandeau-grille {
    grid-template-columns: 1fr 1fr;
  }
}