.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: color-mix(in srgb, var(--rga-cream) 94%, transparent);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid color-mix(in srgb, var(--rga-green-dark) 15%, transparent);
}

.site-header.is-sticky {
    box-shadow: 0 8px 24px color-mix(in srgb, var(--rga-green-dark) 12%, transparent);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 78px;
    gap: var(--space-4);
}

.site-logo {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    text-decoration: none;
    color: var(--color-secondary);
}

.site-logo img {
    width: 52px;
    height: 52px;
    border-radius: 50%;
}

.main-nav__list {
    display: flex;
    align-items: center;
    gap: 1.1rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.main-nav__list a {
    display: inline-block;
    color: var(--color-secondary);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    font-size: 0.86rem;
    text-decoration: none;
    padding-bottom: 0.2rem;
    border-bottom: 2px solid transparent;
}

.main-nav__list a:hover,
.main-nav__list a:focus-visible,
.main-nav__list .current-menu-item > a {
    border-bottom-color: var(--rga-green);
    color: var(--rga-green-dark);
}

/* ── Sous-menus dropdown (desktop) ──────────────────── */
.main-nav__list > li {
    position: relative;
}

/* Flèche sur les parents */
.menu-item-has-children > a::after {
    content: '▾';
    font-size: .65em;
    margin-left: .3rem;
    display: inline-block;
    transition: transform .22s;
    vertical-align: middle;
}
.menu-item-has-children:hover > a::after {
    transform: rotate(180deg);
}

/* Panneau dropdown */
.sub-menu {
    position: absolute;
    top: calc(100% + 12px);
    left: 50%;
    transform: translateX(-50%) translateY(-6px);
    min-width: 230px;
    background: #fff;
    border: 1px solid rgba(26,110,46,.12);
    border-radius: 10px;
    box-shadow: 0 10px 36px rgba(10,46,21,.14);
    padding: .5rem 0;
    list-style: none;
    margin: 0;
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s ease, transform .2s ease;
    z-index: 500;
}

/* Petit triangle pointant vers le haut */
.sub-menu::before {
    content: '';
    position: absolute;
    top: -7px;
    left: 50%;
    transform: translateX(-50%);
    border: 7px solid transparent;
    border-top: none;
    border-bottom-color: #fff;
}

/* Ouverture au survol (desktop) */
.menu-item-has-children:hover > .sub-menu,
.menu-item-has-children:focus-within > .sub-menu {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}

/* Liens dans le sous-menu */
.sub-menu a {
    display: block;
    padding: .55rem 1.3rem;
    font-size: .82rem;
    font-weight: 600;
    color: #0e3d19;
    text-transform: none;
    letter-spacing: 0;
    border-bottom: none !important;
    white-space: nowrap;
    transition: background .15s, color .15s, padding-left .15s;
}
.sub-menu a:hover,
.sub-menu a:focus-visible {
    background: #e8f5eb;
    color: #0a2e15;
    padding-left: 1.6rem;
    border-bottom: none !important;
}
.sub-menu .current-menu-item > a {
    color: #1a6e2e;
    font-weight: 700;
}
.sub-menu li + li {
    border-top: 1px solid rgba(26,110,46,.07);
}

/* ── Bouton toggle mobile (injecté par JS) ───────────── */
.sub-toggle {
    display: none; /* masqué sur desktop */
    background: none;
    border: none;
    cursor: pointer;
    padding: 2px .45rem;
    font-size: .85rem;
    color: #1a6e2e;
    line-height: 1;
    vertical-align: middle;
    transition: transform .2s;
    border-radius: 4px;
}

.menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border: 1px solid color-mix(in srgb, var(--rga-green-dark) 30%, transparent);
    border-radius: var(--radius-sm);
    background: var(--color-white);
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.menu-toggle__line {
    width: 22px;
    height: 2px;
    background: var(--color-secondary);
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.menu-open .menu-toggle__line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

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

.menu-open .menu-toggle__line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 767px) {
    .menu-toggle {
        display: inline-flex;
    }

    .main-nav {
        position: absolute;
        top: calc(100% + 1px);
        right: 0;
        left: 0;
        background: var(--color-bg);
        border-bottom: 1px solid color-mix(in srgb, var(--rga-green-dark) 20%, transparent);
        padding: 0.8rem 1rem 1rem;
        transform: scaleY(0);
        transform-origin: top;
        opacity: 0;
        pointer-events: none;
        transition: transform 0.2s ease, opacity 0.2s ease;
    }

    .main-nav.is-open {
        transform: scaleY(1);
        opacity: 1;
        pointer-events: auto;
    }

    .main-nav__list {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    /* Sous-menus sur mobile */
    .main-nav__list > li {
        width: 100%;
    }

    .menu-item-has-children > a {
        display: inline; /* le toggle button est à côté */
    }

    /* Masquer la flèche CSS sur mobile (le bouton JS prend le relais) */
    .menu-item-has-children > a::after {
        display: none;
    }

    .sub-toggle {
        display: inline-block;
    }

    .sub-open > .sub-toggle {
        transform: rotate(180deg);
    }

    /* Sous-menu mobile : liste statique dépliable */
    .sub-menu {
        position: static;
        transform: none;
        opacity: 1;
        pointer-events: auto;
        box-shadow: none;
        border: none;
        border-left: 3px solid #1a6e2e;
        border-radius: 0;
        padding: .2rem 0;
        margin: .3rem 0 .3rem 1rem;
        background: transparent;
        display: none;
    }

    .sub-menu::before { display: none; }

    .sub-open > .sub-menu {
        display: block;
    }

    .sub-menu a {
        padding: .45rem .9rem;
        color: #1a6e2e;
        font-size: .83rem;
        white-space: normal;
    }

    .sub-menu a:hover {
        background: rgba(26,110,46,.08);
        padding-left: 1.1rem;
    }

    .sub-menu li + li {
        border-top: none;
    }
}