/* Styles du header */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--background-color);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

nav {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.logo {
    display: flex;
    align-items: center;
    margin-right: 15px;
}

.logo-img {
    height: 40px;
    width: auto;
    transition: transform 0.3s ease;
}

.logo-img:hover {
    transform: scale(1.05);
}

.nav-links {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-links a:not(.btn-login):not(.btn-logout) {
    color: var(--text-color-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-speed);
    padding: 8px 12px;
}

.nav-links a:hover {
    color: var(--primary-color);
    background-color: rgba(66, 133, 244, 0.08);
}

.nav-links a.active {
    color: var(--primary-color) !important;
    font-weight: 700 !important;
    background-color: rgba(66, 133, 244, 0.08);
    border-bottom: 2px solid var(--primary-color);
}

/* Boutons du header */
.btn-theme {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    border-radius: 50%;
    transition: background-color 0.3s ease;
    background-color: var(--button-bg-color);
    margin-left: 10px;
}

.btn-theme:hover {
    background-color: var(--button-hover-bg-color);
}

.btn-login {
    display: inline-flex !important;
    align-items: center;
    gap: 8px;
    background-color: var(--primary-color);
    color: white !important;
    padding: 8px 16px !important;
    border-radius: 4px;
    font-weight: 500;
    font-size: 14px;
    transition: all 0.3s ease;
    text-decoration: none;
    border: none;
    cursor: pointer;
}

.btn-login:hover {
    background-color: var(--primary-color-light) !important;
    transform: translateY(-1px);
}

.btn-login .material-icons {
    font-size: 18px;
}

.btn-logout {
    display: flex;
    align-items: center;
    gap: 8px;
    background: none;
    border: none;
    color: var(--text-color-secondary);
    cursor: pointer;
    padding: 8px 12px;
    border-radius: 4px;
    font-weight: 500;
    transition: all var(--transition-speed);
}

.btn-logout:hover {
    color: var(--primary-color);
    background-color: rgba(66, 133, 244, 0.08);
}

/* Menu mobile */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-color);
}

.menu-toggle .material-icons {
    font-size: 24px;
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block !important;
        order: 2;
        margin-left: auto;
        background: none;
        border: none;
        cursor: pointer;
        z-index: 9999 !important;
        width: 40px;
        height: 40px;
        padding: 8px;
        position: relative;
    }
    
    .menu-toggle .material-icons {
        font-size: 24px;
        color: var(--text-color);
    }
    
    nav {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: space-between;
        align-items: center;
        padding: 10px 15px;
        position: relative;
    }
    
    .nav-links {
        flex-direction: column;
        width: 100%;
        order: 3;
        margin-top: 15px;
        gap: 10px;
        background-color: var(--background-color);
        border-top: 1px solid var(--border-color);
        padding: 10px 0;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }
    
    .nav-links a, 
    .nav-links .btn-profile,
    #auth-container a {
        padding: 12px 0;
        width: 100%;
        text-align: center;
        display: block;
        border-bottom: 1px solid var(--border-color-light);
    }
    
    .nav-links a:last-child {
        border-bottom: none;
    }
    
    .logo {
        order: 1;
        margin-right: 0;
    }
    
    .logo-img {
        height: 35px;
    }
    
    main {
        margin-top: 60px;
    }
    
    #auth-container {
        width: 100%;
        margin: 0;
        padding: 0;
    }
    
    .btn-theme {
        margin: 10px auto;
        display: flex;
        justify-content: center;
    }
}

/* Spécifique pour les téléphones en mode portrait */
@media (max-width: 480px) and (orientation: portrait) {
    header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1000;
        min-height: 50px;
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
    }
    
    nav {
        height: 50px;
        padding: 0 15px;
        position: relative;
    }
    
    .logo {
        display: flex;
        align-items: center;
        justify-content: center;
        height: 50px;
        width: 100%;
    }
    
    .logo-img {
        height: 32px;
    }
    
    .menu-toggle {
        position: absolute;
        right: 15px;
        top: 50%;
        transform: translateY(-50%);
        height: 40px;
        width: 40px;
        display: flex;
        align-items: center;
        justify-content: center;
        background-color: rgba(66, 133, 244, 0.05);
        border-radius: 50%;
        z-index: 1001;
    }
    
    .menu-toggle:active {
        background-color: rgba(66, 133, 244, 0.2);
    }
    
    .nav-links {
        position: absolute;
        top: 50px;
        left: 0;
        right: 0;
        background-color: var(--background-color);
        z-index: 1000;
        padding: 0;
        margin: 0;
        border-top: 1px solid var(--border-color);
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }
    
    .nav-links.show {
        display: flex;
        max-height: calc(100vh - 50px);
        overflow-y: auto;
    }
    
    .nav-links a {
        width: 100%;
        text-align: center;
        padding: 15px;
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-links a:last-child {
        border-bottom: none;
    }
    
    main {
        margin-top: 50px;
    }
}

/* Header transparent */
.header-transparent {
    background-color: transparent;
    box-shadow: none;
    position: absolute;
}

.header-transparent nav {
    padding: 20px 40px;
}

/* Cache le lien de profil par défaut */
#profile-link {
    display: none !important;
}

/* Affiche le lien de profil quand l'utilisateur est connecté */
#profile-link.auth-visible {
    display: inline-block !important;
    color: var(--text-color-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-speed);
    padding: 8px 12px;
}

#profile-link.auth-visible:hover {
    color: var(--primary-color);
    background-color: rgba(66, 133, 244, 0.08);
}

/* Assure que le lien de profil est visible sur la page d'accueil quand l'utilisateur est connecté */
body.is-homepage #profile-link.auth-visible {
    display: inline-block !important;
}

/* Gestion de l'affichage des boutons de connexion/déconnexion */
.btn-login.auth-hidden {
    display: none !important;
}

#auth-container {
    display: flex;
    align-items: center;
    margin-left: 10px;
}

/* Spinner de chargement */
.loading-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--text-color);
    border-top: 2px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Styles pour le bouton de profil */
.btn-profile {
    color: var(--text-color-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-speed);
    padding: 8px 12px;
}

.btn-profile:hover {
    color: var(--primary-color);
    background-color: rgba(66, 133, 244, 0.08);
}

@media (max-width: 768px) {
    .btn-profile {
        display: block;
        text-align: center;
        width: 100%;
        padding: 12px 0;
    }
    
    /* Centrer le bouton de thème dans le menu mobile */
    #nav-links .btn-theme {
        margin: 10px auto;
        display: flex;
        justify-content: center;
        width: 40px;
        height: 40px;
    }
    
    /* Ajustements pour le conteneur d'authentification */
    #auth-container {
        display: block;
        width: 100%;
        margin: 0;
    }
}