/* ================================================
   LE CINQ — NAVIGATION
   Logo centré | Droite : Contactez-nous + Hamburger
   Toujours transparente (même au scroll)
   Menu overlay : fond #4A7470 plein écran
   ================================================ */

/* ---- Barre principale ---- */
.site-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background-color: transparent;
    padding: 1.4rem 0;
    /* Jamais de fond au scroll : toujours transparent */
}

/* Supprimer tout changement au scroll */
.site-nav.is-scrolled {
    background-color: transparent;
    box-shadow: none;
    padding: 1.4rem 0;
}

/* ---- Grille interne : logo centré, droite groupée ---- */
.nav-inner {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    width: 100%;
    max-width: 1480px;
    margin: 0 auto;
    padding: 0 clamp(0.85rem, 3vw, 2rem) 0 clamp(1.25rem, 5vw, 3.5rem);
}

/* ---- Logo ---- */
.nav-logo {
    grid-column: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.25s ease;
}

.nav-logo:hover { opacity: 0.8; }

.nav-logo img {
    filter: brightness(0) invert(1);
    height: 115px;
    width: auto;
    transition: transform 0.3s var(--ease-out-expo);
}

.nav-logo:hover img { transform: scale(1.04); }

/* ---- Droite : bouton CTA + hamburger côte à côte ---- */
.nav-right-area {
    grid-column: 3;
    justify-self: end;
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* ---- CTA "Contactez-nous" fond blanc ---- */
.nav-cta {
    display: inline-flex;
    align-items: center;
    padding: 0.68rem 1.45rem;
    font-family: var(--font-sans);
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.09em;
    text-transform: uppercase;
    color: #1a1a1a;
    background-color: #ffffff;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    transition: background-color 0.25s ease, transform 0.2s ease;
}

.nav-cta:hover { background-color: #f0f0f0; }
.nav-cta:active { transform: scale(0.97); }

/* ---- Hamburger ---- */
.nav-hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    width: 46px;
    height: 46px;
    padding: 7px;
    background: transparent;
    border: none;
    cursor: pointer;
    position: relative;
    z-index: 400; /* au-dessus de l'overlay du menu (300) */
}

/* L'icône morphe en X quand le menu est ouvert (un seul élément, jamais de doublon) */
.nav-hamburger[aria-expanded="true"] .hamburger-line:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}
.nav-hamburger[aria-expanded="true"] .hamburger-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0.4);
}
.nav-hamburger[aria-expanded="true"] .hamburger-line:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

.hamburger-line {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--clr-white);
    border-radius: 2px;
    transform-origin: center;
    transition: transform 0.35s var(--ease-out-expo), opacity 0.25s ease;
}

/* ---- Menu overlay plein écran #4A7470 ---- */
.mobile-menu {
    position: fixed;
    inset: 0;
    z-index: 300;
    background-color: #4A7470;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s ease, visibility 0.35s ease;
}

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

/* ---- Bouton X (fermeture) — remplacé par le hamburger qui morphe en X ---- */
.menu-close-btn {
    display: none;
}

.close-line {
    position: absolute;
    display: block;
    width: 26px;
    height: 1.5px;
    background-color: #fff;
    border-radius: 2px;
    transition: opacity 0.2s ease;
}

.close-line:first-child { transform: rotate(45deg); }
.close-line:last-child  { transform: rotate(-45deg); }

.menu-close-btn:hover .close-line { opacity: 0.7; }

/* ---- Liens du menu overlay ---- */
.mobile-nav-links {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
    text-align: center;
    width: 100%;
}

.mobile-link {
    display: block;
    width: 100%;
    padding: 1rem 2rem;
    font-family: var(--font-sans);
    font-size: clamp(1.2rem, 3vw, 1.6rem);
    font-weight: 400;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.85);
    text-align: center;
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.4s var(--ease-out-expo) var(--delay, 0ms),
                transform 0.4s var(--ease-out-expo) var(--delay, 0ms),
                color 0.2s ease,
                background-color 0.2s ease;
}

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

.mobile-link:hover {
    color: #fff;
    background-color: rgba(255,255,255,0.08);
}

.mobile-link--active {
    color: #fff;
    font-weight: 600;
}

/* ---- Responsive ---- */
@media (max-width: 600px) {
    .site-nav,
    .site-nav.is-scrolled {
        padding: 1rem 0;
    }
    .nav-inner {
        grid-template-columns: 1fr auto 1fr;
        padding: 0 1rem;
    }
    .nav-cta {
        display: none;
    }
    .nav-logo img { height: 72px; }
    .nav-hamburger {
        width: 48px;
        height: 48px;
        padding: 7px;
    }
}

@media (max-width: 380px) {
    .nav-cta { display: none; }
}