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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #0a0a0a;
    color: #e0e0e0;
    min-height: 100vh;
}

/* Header */
.header {
    background: #1a1a1a;
    border-bottom: 1px solid #333;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
}

/* Container principal */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.content {
    max-width: 900px;
    margin: 0 auto;
}

.hero {
    max-width: 900px;
    margin: 0 auto;
}

/* Typographie */
h1 {
    color: #ffffff;
    font-size: 2.8rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.5px;
}

h2 {
    color: #00d9ff;
    font-size: 1.8rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

h3 {
    color: #ffffff;
    font-size: 1.3rem;
    margin-top: 1.5rem;
    margin-bottom: 0.8rem;
}

p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: #b0b0b0;
    margin-bottom: 1.5rem;
}

.page-title {
    font-size: 6.5rem;
    color: #00d9ff;
    text-align: center;
}


/* Pour les boutons de téléchargement */
.download-btn {
    display: inline-block;
    background-color: #00d9ff;
    color: #0a0a0a;
    padding: 0.60rem 1.2rem;
    font-weight: bold;
    border-radius: 4px;
    margin: 1rem 0;
    cursor: pointer;
    text-decoration: none;
    border: none;
    transition: background-color 0.3s ease;
}

.download-btn:hover {
    background-color: #00b8e6;
    text-decoration: none;
}

.description {
    font-size: 1.1rem;
    line-height: 1.7;
    color: #b0b0b0;
}

.subtitle {
    color: #00d9ff;
    font-size: 1rem;
    margin-top: 0.5rem;
    margin-bottom: 1rem;
}

/* Listes */
ul {
    margin-left: 2rem;
    margin-bottom: 1.5rem;
}

li {
    font-size: 1.1rem;
    line-height: 1.7;
    color: #b0b0b0;
    margin-bottom: 0.8rem;
}

/* Liens */
a {
    color: #00d9ff;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}


/* Boîtes d'information */
.info-box {
    background: rgba(255, 200, 0, 0.1);
    padding: 1.5rem;
    border-left: 3px solid #ffc800;
    margin: 2rem 0;
}

.highlight {
    background: rgba(0, 217, 255, 0.1);
    padding: 1.5rem;
    border-left: 3px solid #00d9ff;
    margin: 2rem 0;
}

/* Gestion du contenu multilingue */
.lang-content {
    display: none;
}

.lang-content.active {
    display: block;
}

/* Responsive */
@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        height: auto;
        padding: 1rem;
        gap: 1rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    h3 {
        font-size: 1.2rem;
    }
    
    .container {
        padding: 2rem 1rem;
    }
}