/* Header externe - Styles communs pour toutes les pages */

header {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 1rem 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: relative;
    z-index: 1000;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    z-index: 100;
    color: var(--white);
    text-decoration: none;
    transition: color 0.3s ease;
}

.logo:hover {
    color: var(--accent-color);
}

.logo-icon {
    margin-right: 10px;
    font-size: 2rem;
}

.mobile-menu-btn {
    display: none;
    background: transparent;
    border: none;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 100;
    padding: 0.5rem;
    border-radius: 4px;
    transition: background-color 0.3s ease;
}

.mobile-menu-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

nav {
    position: relative;
}

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

.nav-links li {
    margin-left: 1.5rem;
}

.nav-links a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--accent-color);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-links a:hover {
    color: var(--accent-color);
}

/* Styles responsive pour mobile */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }

    .nav-links {
        position: fixed;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--primary-color);
        flex-direction: column;
        align-items: center;
        padding: 2rem 0;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        z-index: 99;
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-links li {
        margin: 0.5rem 0;
    }

    .nav-links a {
        font-size: 1.1rem;
        padding: 0.75rem 1.5rem;
        border-radius: 4px;
        transition: all 0.3s ease;
    }

    .nav-links a:hover {
        background-color: rgba(255, 255, 255, 0.1);
    }

    .container {
        width: 95%;
    }
}

/* Styles pour très petits écrans */
@media (max-width: 480px) {
    .logo {
        font-size: 1.5rem;
    }
    
    .logo-icon {
        font-size: 1.7rem;
    }
    
    header {
        padding: 0.8rem 0;
    }
}