/* General Body Styles */
body {
    font-family: 'Sora', sans-serif;
    margin: 0;
    background-color: #ffffff;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: #fff;
    padding: 20px 0;
    border-bottom: 1px solid #eaeaea;
    position: relative; /* FIX: nécessaire pour que le menu mobile absolu se positionne correctement */
    z-index: 100;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative; /* FIX: ancrage pour le menu déroulant absolu */
}

.logo {
    font-size: 1.5em;
    font-weight: 800;
    color: #003366;
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
}

nav ul li {
    margin-left: 30px;
}

nav ul li a {
    text-decoration: none;
    color: #333;
    font-weight: 700;
    transition: color 0.3s ease;
}

nav ul li a:hover {
    color: #003366;
}

/* Hero Section */
.hero {
    padding: 80px 0;
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.hero-content {
    max-width: 50%;
}

.hero-content h1 {
    font-size: 3.5em;
    font-weight: 800;
    color: #003366;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.2em;
    color: #555;
}

.hero-illustration {
    max-width: 45%;
}

.hero-illustration img {
    max-width: 100%;
    height: auto;
}

/* Latest Articles Section */
.latest-articles {
    padding: 80px 0;
    background-color: #f9f9f9;
}

.latest-articles h2 {
    text-align: center;
    font-size: 2.5em;
    font-weight: 800;
    color: #003366;
    margin-bottom: 60px;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.article-card {
    background: #fff;
    border: 1px solid #eaeaea;
    border-radius: 10px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
}

.article-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.article-card h3 {
    font-size: 1.4em;
    font-weight: 700;
    color: #003366;
    padding: 20px 20px 10px 20px;
    margin: 0;
}

.article-card p {
    padding: 0 20px 20px 20px;
    color: #555;
}

.read-more {
    display: inline-block;
    padding: 0 20px 20px 20px;
    text-decoration: none;
    color: #003366;
    font-weight: 700;
    transition: color 0.3s ease;
}

.read-more:hover {
    color: #0055aa;
}

/* Page Content */
.page-content {
    padding: 60px 0;
}

.page-content h1 {
    font-size: 2.5em;
    font-weight: 800;
    color: #003366;
    margin-bottom: 30px;
}

.page-content h2 {
    font-size: 1.8em;
    font-weight: 700;
    color: #003366;
    margin-top: 40px;
    margin-bottom: 20px;
}

.page-content h3 {
    font-size: 1.3em;
    font-weight: 700;
    color: #003366;
    margin-top: 30px;
    margin-bottom: 15px;
}

.page-content ul {
    margin: 20px 0;
    padding-left: 30px;
}

.page-content li {
    margin-bottom: 10px;
    color: #555;
}

/* Footer */
footer {
    background: #fff;
    padding: 40px 0;
    border-top: 1px solid #eaeaea;
    position: relative; /* FIX: évite tout comportement de positionnement inattendu */
    z-index: 1;
}

footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
}

.footer-nav ul li {
    margin-left: 20px;
}

.footer-nav ul li a {
    text-decoration: none;
    color: #555;
    transition: color 0.3s ease;
}

.footer-nav ul li a:hover {
    color: #003366;
}

/* ============================================
   RESPONSIVE DESIGN - TABLET (768px and below)
   ============================================ */
@media (max-width: 768px) {
    .logo {
        font-size: 1.2em;
    }

    nav ul {
        flex-direction: column;
        position: absolute;
        top: 100%; /* FIX: positionné par rapport au header .container (position: relative) */
        left: -20px;
        right: -20px;
        background: #fff;
        border-bottom: 1px solid #eaeaea;
        padding: 20px;
        display: none;
        z-index: 1000;
        box-shadow: 0 4px 10px rgba(0,0,0,0.08);
    }

    nav ul.active {
        display: flex;
    }

    nav ul li {
        margin: 10px 0;
        margin-left: 0;
    }

    .menu-toggle {
        display: block;
        background: none;
        border: none;
        font-size: 1.5em;
        cursor: pointer;
        color: #003366;
    }

    .hero .container {
        flex-direction: column;
    }

    .hero-content {
        max-width: 100%;
        margin-bottom: 40px;
    }

    .hero-content h1 {
        font-size: 2.2em;
    }

    .hero-content p {
        font-size: 1em;
    }

    .hero-illustration {
        max-width: 100%;
    }

    .latest-articles h2 {
        font-size: 1.8em;
        margin-bottom: 40px;
    }

    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .article-card h3 {
        font-size: 1.1em;
    }

    /* FIX Footer tablette */
    footer .container {
        flex-direction: column;
        align-items: center;
        gap: 20px;
        text-align: center;
    }

    footer p {
        margin: 0;
        text-align: center;
    }

    .footer-nav ul {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
    }

    .footer-nav ul li {
        margin-left: 0;
    }

    .page-content h1 {
        font-size: 1.8em;
    }

    .page-content h2 {
        font-size: 1.4em;
    }
}

/* ============================================
   RESPONSIVE DESIGN - MOBILE (480px and below)
   ============================================ */
@media (max-width: 480px) {
    .logo {
        font-size: 1em;
    }

    nav ul {
        flex-direction: column;
        position: absolute;
        top: 100%; /* FIX: positionné par rapport au header .container (position: relative) */
        left: -20px;
        right: -20px;
        background: #fff;
        border-bottom: 1px solid #eaeaea;
        padding: 15px;
        display: none;
        z-index: 1000;
        box-shadow: 0 4px 10px rgba(0,0,0,0.08);
    }

    nav ul.active {
        display: flex;
    }

    nav ul li {
        margin: 8px 0;
        margin-left: 0;
    }

    nav ul li a {
        font-size: 0.9em;
    }

    .menu-toggle {
        display: block;
        background: none;
        border: none;
        font-size: 1.3em;
        cursor: pointer;
        color: #003366;
    }

    .hero {
        padding: 40px 0;
    }

    .hero .container {
        flex-direction: column;
    }

    .hero-content {
        max-width: 100%;
        margin-bottom: 30px;
    }

    .hero-content h1 {
        font-size: 1.6em;
        margin-bottom: 15px;
    }

    .hero-content p {
        font-size: 0.95em;
        color: #666;
    }

    .hero-illustration {
        max-width: 100%;
    }

    .latest-articles {
        padding: 40px 0;
    }

    .latest-articles h2 {
        font-size: 1.4em;
        margin-bottom: 30px;
    }

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

    .article-card {
        border-radius: 8px;
    }

    .article-card img {
        height: 150px;
    }

    .article-card h3 {
        font-size: 1em;
        padding: 15px 15px 8px 15px;
    }

    .article-card p {
        font-size: 0.9em;
        padding: 0 15px 15px 15px;
    }

    .read-more {
        padding: 0 15px 15px 15px;
        font-size: 0.9em;
    }

    /* FIX Footer mobile */
    footer {
        padding: 30px 0;
    }

    footer .container {
        flex-direction: column;
        align-items: center;
        gap: 15px;
        text-align: center;
    }

    footer p {
        font-size: 0.85em;
        text-align: center;
        margin: 0;
    }

    .footer-nav ul {
        flex-direction: column;
        align-items: center;
        gap: 8px;
        text-align: center;
    }

    .footer-nav ul li {
        margin-left: 0;
    }

    .footer-nav ul li a {
        font-size: 0.85em;
    }

    .page-content {
        padding: 40px 0;
    }

    .page-content h1 {
        font-size: 1.4em;
        margin-bottom: 20px;
    }

    .page-content h2 {
        font-size: 1.1em;
        margin-top: 30px;
        margin-bottom: 15px;
    }

    .page-content h3 {
        font-size: 1em;
        margin-top: 20px;
        margin-bottom: 10px;
    }

    .page-content p {
        font-size: 0.95em;
        line-height: 1.5;
    }

    .page-content ul {
        padding-left: 20px;
    }
}