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

body {
  font-family: 'Roboto', sans-serif;
  background-color: #F5EDE2;
  color: #8B008B;
}

/* Header */
.header {
  position: fixed;
  height: 60px;
  top: 0;
  left: 0;
  right: 0;
  padding: 15px 20px;
  align-items: center; 
  display: flex;
  background: linear-gradient(to bottom, rgba(139, 0, 139, 0.9) 0%, rgba(245, 237, 226, 0) 100%);
  justify-content: space-between;
  z-index: 1000;
}

.header-item.header-left {
  font-size: 20px;
  font-family: 'Bebas Neue', sans-serif;
  font-weight: bold;
  letter-spacing: 3px;
  color: #F5EDE2;
}

.header-item.header-right {
  display: flex;
  justify-content: flex-end;
  gap: 30px;
  font-size: 30px;
  font-family: 'Bebas Neue', sans-serif;
}

.header-item.header-right a {
  color: #F5EDE2;
  text-decoration: none;
  position: relative;
  transition: color 0.3s ease;
}

.header-item.header-right a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background-color: #FFFF00;
  transition: width 0.3s ease;
}

.header-item.header-right a:hover {
  color: #FFFF00;
}

.header-item.header-right a:hover::after {
  width: 100%;
}

.header-left-link {
  font-size: 30px;
  font-family: 'Bebas Neue', sans-serif;
  font-weight: bold;
  letter-spacing: 3px;
  color: #F5EDE2;
  text-decoration: none;
  position: relative;
  transition: color 0.3s ease;
}

.header-left-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background-color: #FFFF00;
  transition: width 0.3s ease;
}

.header-left-link:hover {
  color: #FFFF00;
}

.header-left-link:hover::after {
  width: 100%;
}

/* Container principal */
.container {
  max-width: 1400px;
  margin: 50px auto 50px;
  padding: 0 50px;
}

/* Hero section */
.hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin: 10px 0;
  padding: 150px 40px 60px;
}

.hero-left h1 {
  font-size: 70px;
  font-weight: bold;
  color: #8B008B;
  line-height: 0.9;
  text-align: left;
  margin-bottom: 10px;
  text-transform: uppercase;
  font-family: 'Bebas Neue', sans-serif;
}

.hero-left h2 {
  font-size: 30px;
  line-height: 1;
  font-weight: normal;
  text-align: left;
  color: #8B008B;
  font-family: 'Bebas Neue', sans-serif;
  letter-spacing: 2px;
}

/* Section bibliographie */
.biblio-section {
  margin-bottom: 50px;
}

.section-title {
  font-size: 30px;
  font-weight: bold;
  color: #8B008B;
  margin-bottom: 20px;
  letter-spacing: 3px;
  text-transform: lowercase;
  font-family: 'Bebas Neue', sans-serif;
}

/* Colonnes pour la bibliographie */
.biblio-columns {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.biblio-item {
  margin-bottom: 0;
  font-family: 'Roboto', sans-serif;
  font-size: 15px;
  color: #8B008B;
  line-height: 1.4;
  text-align: left;
}

.biblio-item:last-child {
  margin-bottom: 0;
}

/* Style des liens comme les références */
.biblio-item a {
  color: #8B008B;
  text-decoration: underline;
  text-decoration-color: #FFFF00;
  text-decoration-thickness: 3px;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.biblio-item a:hover {
  background-color: #FFFF00;
}

.biblio-item em {
  font-style: italic;
}

/* Section pleine largeur */
.full-width-section {
  grid-column: 1 / -1;
}

@media (max-width: 968px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 150px 40px 60px;
  }

  .hero-left h1 {
    font-size: 48px;
    text-align: left;
  }

  .hero-left h2 {
    text-align: left;
  }

  .biblio-columns {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }

  .hero {
    padding: 120px 20px 60px;
  }

  .hero-left h1 {
    font-size: 36px;
  }

  .hero-left h2 {
    font-size: 20px;
  }

  .section-title {
    font-size: 24px;
  }

  .biblio-item {
    font-size: 13px;
  }

  .header-item.header-right {
    font-size: 24px;
    gap: 20px;
  }
}