:root {
    --couleur-principale: #2C3E50;
    --couleur-accent: #D3A625;
    --couleur-fond: #F8F9FA;
    --couleur-blanc: #FFFFFF;
    --header-height: 110px;
}

body {
    font-family: 'Segoe UI', 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    color: var(--couleur-principale);
    background-color: var(--couleur-fond);
    padding-top: var(--header-height);
    line-height: 1.7;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 30px;
    background-color: var(--couleur-blanc);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.07);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-sizing: border-box;
}

header .logo img {
    max-height: 60px;
}

header nav a {
    text-decoration: none;
    color: var(--couleur-principale);
    font-weight: bold;
    margin-left: 20px;
    transition: 0.3s;
}

header nav a:hover {
    color: var(--couleur-accent);
}

.article-container {
    max-width: 900px;
    margin: 40px auto;
    background: white;
    padding: 50px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.blog-category {
    color: var(--couleur-accent);
    text-transform: uppercase;
    font-weight: bold;
    font-size: 0.9em;
    letter-spacing: 1px;
    display: block;
    margin-bottom: 10px;
}

h1 {
    font-size: 2.5rem;
    color: var(--couleur-principale);
    margin-top: 0;
    line-height: 1.2;
}

.title-underline {
    width: 60px;
    height: 4px;
    background-color: var(--couleur-accent);
    margin: 20px 0 40px 0;
}

h2 {
    font-size: 2rem;
    color: var(--couleur-principale);
    margin-top: 45px;
    border-bottom: 2px solid #f0f0f0;
    padding-bottom: 10px;
}

h3 {
    font-size: 1.5rem;
    color: var(--couleur-principale);
    margin-top: 35px;
    display: flex;
    align-items: center;
    gap: 15px;
}

h3 i {
    color: var(--couleur-accent);
    font-size: 0.9em;
}

p {
    margin-bottom: 20px;
    color: #444;
    font-size: 1.1rem;
}

.author-box {
    display: flex;
    align-items: center;
    background: #f8f9fa;
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 40px;
    border-left: 4px solid var(--couleur-accent);
}

.author-box p {
    margin: 0;
    font-size: 0.95rem;
    color: #666;
}

.author-name {
    font-weight: bold;
    color: var(--couleur-principale);
}

ul {
    padding-left: 20px;
    margin: 25px 0;
    font-size: 1.1rem;
    color: #444;
}

ul li {
    margin-bottom: 15px;
}

.highlight-box {
    background-color: #f0f8ff;
    border-radius: 8px;
    padding: 20px 30px;
    border-left: 6px solid #4CAF50;
    margin: 30px 0;
}

.highlight-box h3 {
    color: #4CAF50;
    margin-top: 0;
    border: none;
}

.faq {
    background-color: #fcfcfc;
    padding: 20px 30px;
    border-radius: 8px;
    margin-top: 50px;
}

.faq h3 {
    margin-top: 0;
    border-bottom: 2px solid var(--couleur-accent);
    padding-bottom: 10px;
    display: inline-block;
}

.faq-item {
    margin-bottom: 25px;
}

.faq-item h4 {
    margin-bottom: 10px;
    font-size: 1.2rem;
    color: var(--couleur-principale);
}

.faq-item p {
    margin-top: 0;
    font-size: 1rem;
    color: #555;
}

.article-cta {
    background: var(--couleur-fond);
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    margin-top: 50px;
    border-left: 5px solid var(--couleur-accent);
}

.btn-gold {
    background-color: var(--couleur-accent);
    color: white;
    padding: 12px 25px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    display: inline-block;
    transition: 0.3s;
    margin-top: 15px;
}

.btn-gold:hover {
    background-color: #b89120;
    transform: translateY(-2px);
}

footer {
    background: #2C3E50;
    color: #fff;
    padding: 40px 0 0 0;
    margin-top: 60px;
}

.footer-zones {
    display: flex;
    justify-content: center;
    gap: 40px;
    max-width: 1100px;
    margin: 0 auto 30px auto;
    flex-wrap: wrap;
}

.footer-zones h4 {
    color: #fff;
    border-bottom: 2px solid #D3A625;
    display: inline-block;
    padding-bottom: 3px;
}

.footer-zones ul {
    list-style: none;
    padding: 0;
}

.footer-bottom {
    text-align: center;
    padding: 20px;
    border-top: 1px solid #3a4a5a;
    font-size: 0.9em;
}

@media (max-width: 768px) {
    .article-container {
        padding: 30px 20px;
        margin: 20px;
    }

    h1 {
        font-size: 1.8rem;
    }

    header nav {
        display: none;
    }
}