/* ==============================
   VARIABLES
============================== */
:root {
  --primary-color: #002855;
  --secondary-color: #004080;
  --accent-color: #ffd700;
  --btn-bg: #004080;
  --btn-hover: #0066cc;
  --text-color: #333;
  --bg-color: #f8f8f8;
  --card-shadow: rgba(0,0,0,0.1);
  --header-shadow: rgba(0,0,0,0.2);
}

/* ==============================
   RESET & GLOBAL
============================== */
body {
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
  padding: 0;
  background: var(--bg-color);
  color: var(--text-color);
}

a {
  text-decoration: none;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* ==============================
   HEADER
============================== */
header {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  box-shadow: 0 3px 10px var(--header-shadow);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-wrapper {
  display: grid;
  grid-template-columns: 1fr auto 1fr; /* logo à gauche, nav au centre, espace à droite */
  align-items: center;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.8rem 1rem;
}

.header-left,
.header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

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

.header-logo {
  width: 120px;
  opacity: 0.85;
  transition: transform 0.3s;
}

.header-logo:hover {
  transform: scale(1.05);
}

.header-top h1 {
  margin: 0;
  font-size: 1.8rem;
  letter-spacing: 0.5px;
}

.subtitle {
  margin: 0;
  font-size: 0.9rem;
  opacity: 0.8;
}

/* ==============================
   NAVIGATION
============================== */
.main-nav {
  display: inline-flex; /* inline-flex pour rester centré */
  justify-content: center;
  gap: 1.5rem;
  padding: 0.8rem 0;
}

.main-nav a {
  color: white;
  text-decoration: none;
  font-size: 0.95rem;
  padding: 0.4rem 0.6rem;
  position: relative;
  transition: 0.3s;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 0%;
  height: 2px;
  background: var(--accent-color);
  transition: 0.3s;
}

.main-nav a:hover::after {
  width: 100%;
}

.main-nav a:hover {
  color: var(--accent-color);
}

.main-nav a.active {
  color: var(--accent-color);
  font-weight: bold;
}

/* ==============================
   RECHERCHE
============================== */
.search-bar {
  margin-top: 0.8rem;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
}

.search-bar input {
  padding: 0.5rem 0.8rem;
  border-radius: 20px 0 0 20px;
  border: none;
  outline: none;
  width: 250px;
  max-width: 60%;
}

.search-bar button {
  padding: 0.5rem 0.8rem;
  border: none;
  background: var(--accent-color);
  color: var(--primary-color);
  border-radius: 0 20px 20px 0;
  cursor: pointer;
  font-weight: bold;
  transition: 0.2s;
}

.search-bar button:hover {
  background: #ffcc00;
}

.logo-side {
  height: 32px;
  padding: 3px;
  background: rgba(255,255,255,0.1);
  border-radius: 6px;
  object-fit: contain;
  transition: transform 0.3s;
}

.logo-side:hover {
  transform: scale(1.05);
}

/* ==============================
   INTRO / TEXT BLOCK
============================== */
.intro {
  background: white;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 8px var(--card-shadow);
  max-width: 800px;
  margin: 2rem auto;
}

.intro h2 {
  margin-top: 0;
}

/* ==============================
   GRILLE DE CARTES
============================== */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.card {
  background: white;
  padding: 1rem;
  border-radius: 8px;
  box-shadow: 0 1px 6px var(--card-shadow);
  text-align: center;
}

.card img {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
}

.card h3 {
  margin: 0.5rem 0 0;
}

.card p {
  font-size: 0.9rem;
  color: #555;
}

/* ==============================
   LISTE D’ARCHIVES
============================== */
.archives-list {
  max-width: 600px;
  margin: 2rem auto;
  padding: 0;
  list-style: none;
}

.archives-list li {
  margin: 1rem 0;
}

.archives-list a {
  display: block;
  padding: 1rem;
  background: #f0f0f0;
  border-radius: 5px;
  text-decoration: none;
  color: var(--primary-color);
  font-weight: bold;
  transition: background 0.2s;
}

.archives-list a:hover {
  background: #ddd;
}

/* ==============================
   BOUTONS
============================== */
.btn {
  display: inline-block;
  background: var(--btn-bg);
  color: white;
  padding: 0.8rem 1.2rem;
  text-decoration: none;
  border-radius: 4px;
  margin-top: 1rem;
  transition: 0.2s;
}

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

/* ==============================
   FOOTER
============================== */
footer {
  text-align: center;
  padding: 1rem;
  background: #eee;
  margin-top: 4rem;
}

/* ==============================
   RESPONSIVE
============================== */
@media (max-width: 800px) {
  .header-logo {
    display: none;
  }
}

@media (max-width: 700px) {
  .main-nav {
    flex-wrap: wrap;
    gap: 0.8rem;
  }

  .header-top h1 {
    font-size: 1.4rem;
  }

  .search-bar input {
    width: 150px;
  }

  .logo-side {
    height: 30px;
  }
}

/* ==============================
   HEADER OPTIMISÉ : LOGOS COLLÉS AUX BORDS
============================== */
.header-wrapper {
  display: grid;
  grid-template-columns: auto 1fr auto; /* logos aux extrémités, centre flexible */
  align-items: center;
  width: 100%;
  padding: 0 0; /* on enlève le padding pour coller aux bords */
}

.header-left,
.header-right {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 1rem; /* petit espace entre logo et bord de la fenêtre si besoin */
}

.header-center {
  text-align: center;
  padding: 0 1rem; /* espace minimal pour nav et barre de recherche */
}

.header-logo {
  width: 120px;
  opacity: 0.85;
  transition: transform 0.3s;
}

.header-logo:hover {
  transform: scale(1.05);
}

/* NAVIGATION CENTRÉE */
.main-nav {
  display: inline-flex;
  justify-content: center;
  gap: 1.5rem;
  padding: 0.8rem 0;
}

/* RESPONSIVE */
@media (max-width: 800px) {
  .header-logo {
    display: none; /* logos disparaissent sur petit écran */
  }

  .main-nav {
    flex-wrap: wrap;
    gap: 0.8rem;
  }

  .header-top h1 {
    font-size: 1.4rem;
  }

  .search-bar input {
    width: 150px;
  }
}