/* ============================================================
   NAVIGATION — header, nav desktop, dropdown, menu mobile
   ============================================================ */

.site-header {
    border-bottom: 0.5px solid var(--border);
    padding-top: var(--space-md);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: var(--space-md);
}

.site-header__logo {
    display: flex;
    align-items: center;
}

.site-header__logo-img {
    display: block;
    height: 40px;
    width: auto;
}

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

.nav-item--dropdown {
    position: relative;
}

.site-nav__link {
    font: var(--text-ui);
    color: var(--text-secondary);
    text-decoration: none;
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius);
}

.site-nav__link:hover {
    color: var(--accent);
}

.site-nav__link--active {
    color: var(--accent);
    background: var(--accent-subtle);
}

.site-nav__divider {
    width: 0.5px;
    height: 14px;
    background: var(--border-strong);
}

/* --- Dropdown "Cours" (desktop) --- */
.dropdown-panel {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 180px;
    background: var(--bg-card);
    border: 0.5px solid var(--border);
    border-radius: var(--radius);
    padding: var(--space-xs);
    box-shadow: 0 4px 12px rgba(30, 46, 30, 0.08);
    z-index: 10;
}

.nav-item--dropdown:hover .dropdown-panel,
.nav-item--dropdown:focus-within .dropdown-panel {
    display: block;
}

.dropdown-panel__item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font: var(--text-ui);
    color: var(--text-secondary);
    text-decoration: none;
    padding: var(--space-sm);
    border-radius: var(--radius);
}

.dropdown-panel__item:hover {
    background: var(--accent-subtle);
    color: var(--accent);
}

.dropdown-panel__item--empty {
    color: var(--text-muted);
    cursor: default;
}

/* --- Actions tablette/mobile (recherche + burger) --- */
.site-header__actions {
    display: none;
    align-items: center;
    gap: var(--space-md);
}

.icon-button {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 20px;
    display: flex;
    align-items: center;
}

.icon-button:hover {
    color: var(--accent);
}

/* --- Panneau mobile --- */
.mobile-nav {
    border-top: 0.5px solid var(--border);
    padding: var(--space-md) var(--page-margin);
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.mobile-nav[hidden] {
    display: none;
}

.mobile-nav__link,
.mobile-nav__accordion-trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    font: var(--text-ui);
    color: var(--text-secondary);
    text-decoration: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px var(--space-sm);
    border-radius: var(--radius);
}

.mobile-nav__link:hover,
.mobile-nav__accordion-trigger:hover {
    background: var(--bg-subtle);
}

.mobile-nav__accordion-trigger--open i {
    transform: rotate(180deg);
}

.mobile-nav__accordion-panel {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 6px var(--space-sm) 6px 28px;
}

.mobile-nav__accordion-panel[hidden] {
    display: none;
}

.mobile-nav__sublink {
    font: var(--text-ui);
    color: var(--text-secondary);
    text-decoration: none;
    padding: 4px 0;
}

.mobile-nav__sublink:hover {
    color: var(--accent);
}

.mobile-nav__sublink--empty {
    color: var(--text-muted);
}

.mobile-nav__divider {
    height: 0.5px;
    background: var(--border);
    margin: var(--space-sm) 0;
}

/* --- Bascule desktop / tablette-mobile --- */
@media (max-width: 1024px) {
    .site-nav {
        display: none;
    }

    .site-header__actions {
        display: flex;
    }
}

@media (min-width: 1025px) {
    .mobile-nav {
        display: none !important;
    }
}