/* css/nav.css */

.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 80px;
    z-index: var(--z-nav);
    transition: background-color var(--transition-base), box-shadow var(--transition-base);
    background-color: transparent;
}

/* État scrollé (activé via JS) */
.main-header.scrolled {
    background-color: var(--color-bg-main);
    box-shadow: var(--shadow-md);
    border-bottom: 1px solid var(--color-border);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.nav-logo img {
    height: 40px;
    width: auto;
    transition: transform var(--transition-base);
}

.nav-logo:hover img {
    transform: scale(1.03);
}

/* Liens centraux */
.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-8);
    align-items: center;
}

.nav-link {
    font-family: var(--font-secondary);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    position: relative;
    padding: var(--space-2) 0;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-white);
}

/* Soulignement orange gradient (Hover & Active) */
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--gradient-orange);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition-base);
}

.nav-link:hover::after,
.nav-link.active::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* Bouton CTA Recrutement */
.nav-actions {
    display: flex;
    align-items: center;
}

/* Lien "Recrutement" dupliqué dans le menu mobile (masqué en desktop) */
.nav-menu-cta-mobile {
    display: none;
}

.btn-cta-nav {
    font-family: var(--font-primary);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-white);
    background: var(--gradient-orange);
    padding: 10px 24px;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-cta-nav:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-orange);
}

/* Menu Burger Mobile (< 768px) */
.burger-menu {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
    z-index: calc(var(--z-modal) + 1);
}

.burger-bar {
    width: 100%;
    height: 3px;
    background-color: var(--color-white);
    border-radius: var(--radius-full);
    transition: transform var(--transition-base), opacity var(--transition-base), background-color var(--transition-base);
}

/* Responsive Mobile */
@media (max-width: 767px) {
    .burger-menu {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 400px;
        height: 100vh;
        background-color: var(--color-overlay);
        backdrop-filter: blur(10px);
        flex-direction: column;
        justify-content: center;
        gap: var(--space-6);
        box-shadow: var(--shadow-lg);
        transition: right var(--transition-slow);
    }

    .nav-menu.open {
        right: 0;
    }

    .nav-link {
        font-size: var(--text-xl);
    }

    .nav-actions {
        display: none; /* Intégré dans le menu mobile si besoin, ou caché en mobile rapide */
    }

    .nav-menu-cta-mobile {
        display: block;
        margin-top: var(--space-4);
        padding-top: var(--space-4);
        border-top: 1px solid var(--color-border);
    }

    .nav-link-recrutement {
        display: inline-block;
        background: var(--gradient-orange);
        color: var(--color-white) !important;
        padding: 10px 28px;
        border-radius: var(--radius-full);
        font-weight: 600;
    }

    .nav-link-recrutement::after {
        display: none;
    }

    /* Animation Burger ouvert */
    .burger-menu.open .burger-bar:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
        background-color: var(--color-orange);
    }

    .burger-menu.open .burger-bar:nth-child(2) {
        opacity: 0;
    }

    .burger-menu.open .burger-bar:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
        background-color: var(--color-orange);
    }
}