/* ============================================
   HUNTOOL NAVIGATION
   Header, Footer, Mobile Menu
   ============================================ */

/* ---- HEADER ---- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    background: rgba(255, 255, 255, 0.97);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    transition:
        background var(--duration-base) var(--ease-out),
        box-shadow var(--duration-base) var(--ease-out);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-sm);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4.5rem;
    max-width: var(--container-2xl);
    margin-inline: auto;
    padding-inline: var(--gutter);
}

/* Logo */
.header-logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    z-index: calc(var(--z-fixed) + 1);
}

.header-logo img {
    height: 2rem;
    width: auto;
}

.header-logo span {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: var(--font-black);
    color: var(--gray-950);
    letter-spacing: var(--tracking-tight);
}

/* Desktop nav */
.nav-desktop {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-6);
}

.nav-link {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--gray-600);
    padding: var(--space-2) 0;
    position: relative;
    transition: color var(--duration-fast) var(--ease-out);
}

.nav-link::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--orange-500);
    border-radius: var(--radius-full);
    transition: width var(--duration-base) var(--ease-out);
}

.nav-link:hover {
    color: var(--gray-950);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link.active {
    color: var(--orange-500);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.nav-actions .btn::before {
    display: none;
}

/* Language switcher */
.lang-switch {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1);
    background: var(--gray-100);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
}

.lang-switch a {
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-full);
    color: var(--gray-500);
    transition:
        background var(--duration-fast) var(--ease-out),
        color var(--duration-fast) var(--ease-out),
        box-shadow var(--duration-fast) var(--ease-out);
}

.lang-switch a.active {
    background: white;
    color: var(--gray-900);
    box-shadow: var(--shadow-xs);
}

/* ---- MOBILE MENU ---- */
.menu-toggle {
    display: none;
    width: 2.75rem;
    height: 2.75rem;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    cursor: pointer;
    z-index: calc(var(--z-overlay) + 1);
    padding: 0;
}

.menu-toggle-icon {
    width: 1.5rem;
    height: 1.25rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
}

.menu-toggle-icon span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--gray-900);
    border-radius: var(--radius-full);
    transition:
        transform var(--duration-base) var(--ease-out),
        opacity var(--duration-base) var(--ease-out);
    transform-origin: center;
}

/* Burger → X morph */
.menu-toggle.active .menu-toggle-icon span:nth-child(1) {
    transform: translateY(0.45rem) rotate(45deg);
}

.menu-toggle.active .menu-toggle-icon span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.menu-toggle.active .menu-toggle-icon span:nth-child(3) {
    transform: translateY(-0.45rem) rotate(-45deg);
}

/* Mobile overlay */
.nav-mobile {
    position: fixed;
    inset: 0;
    z-index: var(--z-overlay);
    background: rgba(255, 255, 255, 0.99);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-8);
    opacity: 0;
    visibility: hidden;
    transition:
        opacity var(--duration-slow) var(--ease-out),
        visibility var(--duration-slow) var(--ease-out);
}

.nav-mobile.open {
    opacity: 1;
    visibility: visible;
}

.nav-mobile .nav-mobile-links {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-6);
}

.nav-mobile .nav-mobile-link {
    font-family: var(--font-display);
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    color: var(--gray-900);
    opacity: 0;
    transform: translateY(20px);
    transition:
        opacity var(--duration-slow) var(--ease-out),
        transform var(--duration-slow) var(--ease-out),
        color var(--duration-fast) var(--ease-out);
}

.nav-mobile.open .nav-mobile-link {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger animation */
.nav-mobile.open .nav-mobile-link:nth-child(1) {
    transition-delay: 100ms;
}
.nav-mobile.open .nav-mobile-link:nth-child(2) {
    transition-delay: 150ms;
}
.nav-mobile.open .nav-mobile-link:nth-child(3) {
    transition-delay: 200ms;
}
.nav-mobile.open .nav-mobile-link:nth-child(4) {
    transition-delay: 250ms;
}
.nav-mobile.open .nav-mobile-link:nth-child(5) {
    transition-delay: 300ms;
}
.nav-mobile.open .nav-mobile-link:nth-child(6) {
    transition-delay: 350ms;
}

.nav-mobile .nav-mobile-link:hover {
    color: var(--orange-500);
}

.nav-mobile .nav-mobile-link.active {
    color: var(--orange-500);
}

.nav-mobile .nav-mobile-cta {
    opacity: 0;
    transform: translateY(20px);
    transition:
        opacity var(--duration-slow) var(--ease-out),
        transform var(--duration-slow) var(--ease-out);
    transition-delay: 400ms;
}

.nav-mobile.open .nav-mobile-cta {
    opacity: 1;
    transform: translateY(0);
}

/* ---- SCROLL PROGRESS BAR ---- */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--orange-500), var(--turquoise-400));
    z-index: calc(var(--z-fixed) + 2);
    /* No transition — updated directly by JS for zero lag */
}

/* ---- FOOTER ---- */
.footer {
    background: var(--gray-950);
    color: var(--gray-300);
    padding-top: var(--space-20);
    position: relative;
    overflow: hidden;
}

/* Gradient accent on top */
.footer::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--orange-500), var(--turquoise-400), var(--orange-500));
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-12);
    max-width: var(--container-2xl);
    margin-inline: auto;
    padding-inline: var(--gutter);
    padding-bottom: var(--space-16);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.footer-brand .footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.footer-brand .footer-logo img {
    height: 2rem;
    filter: brightness(0) invert(1);
}

.footer-brand .footer-logo span {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: var(--font-black);
    color: white;
}

.footer-brand p {
    font-size: var(--text-base);
    color: var(--gray-400);
    max-width: 24rem;
    line-height: var(--leading-relaxed);
}

.footer-col h5 {
    color: white;
    margin-bottom: var(--space-6);
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: var(--tracking-widest);
}

.footer-col a {
    display: block;
    color: var(--gray-400);
    font-size: var(--text-sm);
    padding-block: var(--space-2);
    transition:
        color var(--duration-fast) var(--ease-out),
        transform var(--duration-fast) var(--ease-out);
}

.footer-col a:hover {
    color: white;
    transform: translateX(4px);
}

/* Partners / Trust logos */
.footer-partners {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    margin-top: var(--space-6);
    flex-wrap: wrap;
}

.footer-partners img {
    height: 2.5rem;
    width: auto;
    opacity: 0.6;
    filter: grayscale(1) brightness(2);
    transition:
        opacity var(--duration-base) var(--ease-out),
        filter var(--duration-base) var(--ease-out);
}

/* Badge Microsoft : beaucoup de marge dans le fichier — hauteur supérieure pour équilibrer PDL / Bpifrance */
.footer-partners img.footer-partner-microsoft {
    height: 3.5rem !important;
}

.footer-partners img:hover {
    opacity: 1;
    filter: none;
}

/* Footer bottom */
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: var(--space-6) var(--gutter);
    max-width: var(--container-2xl);
    margin-inline: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: var(--text-sm);
    color: var(--gray-500);
}

.footer-bottom a {
    color: var(--gray-500);
}

.footer-bottom a:hover {
    color: var(--gray-300);
}

.footer-social {
    display: flex;
    gap: var(--space-4);
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.05);
    color: var(--gray-400);
    transition:
        background var(--duration-base) var(--ease-out),
        color var(--duration-base) var(--ease-out),
        transform var(--duration-base) var(--ease-out);
}

.footer-social a:hover {
    background: var(--orange-500);
    color: white;
    transform: translateY(-2px);
}

/* Body offset for fixed header */
.main-content {
    padding-top: 4.5rem;
}