/* ------------------------------
   STYLE GLOBAL
------------------------------ */

body {
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
  background-color: #fffefc;
  color: #333;
  line-height: 1.6;
}

h1, h2, h3, h4 {
  margin-top: 0;
}

/* ------------------------------
   EN-TÊTE + MENU
------------------------------ */

header {
  background: linear-gradient(to right, #0077b6, #00b386, #f9c74f);
  padding: 20px;
  color: white;
}

.header-container {
  display: flex;
  align-items: center;
  gap: 20px;
}

.logo {
  width: 140px;
  height: auto;
}

nav {
  margin-top: 15px;
}

.nav-buttons {
  display: flex;
  list-style: none;
  padding: 0;
  gap: 15px;
  flex-wrap: wrap;
}

.nav-buttons li a {
  text-decoration: none;
  color: white;
  font-weight: bold;
  padding: 8px 14px;
  background-color: rgba(255, 255, 255, 0.25);
  border-radius: 6px;
  transition: background 0.3s;
}

.nav-buttons li a:hover {
  background-color: rgba(255, 255, 255, 0.45);
}

/* ------------------------------
   SECTION HERO
------------------------------ */

.hero {
  text-align: center;
  padding: 60px 20px;
  background-color: #e0f7f1;
}

.hero h2 {
  font-size: 28px;
  color: #0077b6;
}

.hero p {
  font-size: 18px;
  color: #444;
}

.hero-buttons .btn {
  margin: 10px;
  padding: 12px 22px;
  background-color: #00b386;
  color: white;
  text-decoration: none;
  border-radius: 6px;
  font-weight: bold;
  transition: background 0.3s;
}

.hero-buttons .btn:hover {
  background-color: #00996f;
}

/* ------------------------------
   SECTIONS GÉNÉRALES
------------------------------ */

section {
  padding: 40px 20px;
  border-bottom: 1px solid #ddd;
}

h3 {
  color: #0077b6;
  margin-bottom: 15px;
}

h4 {
  color: #00b386;
  margin-top: 25px;
}

/* ------------------------------
   LISTES
------------------------------ */

section ul {
  padding-left: 20px;
}

section ul li {
  margin-bottom: 8px;
}

/* ------------------------------
   CITATIONS
------------------------------ */

blockquote {
  font-style: italic;
  background: #f1f9f8;
  padding: 15px;
  border-left: 4px solid #00b386;
  margin: 20px 0;
}

/* ------------------------------
   SECTION PUBLICATIONS
------------------------------ */

.publications-section {
  padding: 40px 20px;
  background: #f7fff9;
  border-top: 4px solid #00b386;
}

.publications-section h3 {
  text-align: center;
  margin-bottom: 10px;
}

.publications-section p {
  text-align: center;
  color: #444;
  margin-bottom: 30px;
}

.media-gallery {
  display: flex;
  flex-wrap: wrap;
  gap: 25px;
  justify-content: center;
}

.media-item {
  background: #ffffff;
  border-radius: 10px;
  padding: 15px;
  width: 300px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.08);
  text-align: center;
  transition: transform 0.2s ease;
}

.media-item:hover {
  transform: translateY(-5px);
}

.media-item img,
.media-item video {
  width: 100%;
  border-radius: 8px;
  margin-bottom: 10px;
}

.pdf-link {
  font-size: 18px;
  text-decoration: none;
  color: #0077b6;
  font-weight: bold;
}

.pdf-link:hover {
  color: #00b386;
}

/* ------------------------------
   PIED DE PAGE
------------------------------ */

footer {
  text-align: center;
  padding: 20px;
  background-color: #0077b6;
  color: white;
}

footer a {
  color: #f9c74f;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}