/*
 * En-tête public : bande supérieure, barre principale, méga-menus (ordinateur) et tiroir (mobile).
 * Même vocabulaire visuel que les menus latéraux (side-nav.css) : bleu PAC-CI, accent rouge,
 * titres de groupe en capitales rouges, flèche rouge au survol.
 */
:root {
    --pn-blue: #002045;
    --pn-red: #b51822;
    --pn-red-dark: #94121b;
    --pn-pink: #ffb3ad;
    --pn-surface: #f1f4f6;
    --pn-border: #e5e9eb;
    --pn-text: #2b3440;
    --pn-muted: #5a6270;
    --pn-bar-height: 76px;
}

/* Bande supérieure */
.pn-topbar { background: var(--pn-blue); color: #c9d6ea; font-size: 0.82rem; font-family: "Inter", sans-serif; }
.pn-topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 38px; }
.pn-topbar-link { display: inline-flex; align-items: center; gap: 0.35rem; color: #c9d6ea; font-weight: 500; text-decoration: none; }
.pn-topbar-link:hover { color: #fff; }

.pn-lang { display: inline-flex; align-items: center; gap: 2px; padding: 3px; border-radius: 999px; background: rgba(255, 255, 255, 0.08); }
.pn-lang a { padding: 0.2rem 0.6rem; border-radius: 999px; color: #c9d6ea; font-weight: 600; text-decoration: none; }
.pn-lang a:hover { color: #fff; }
.pn-lang a.on { background: #fff; color: var(--pn-blue); }
.pn-lang-light { background: var(--pn-border); }
.pn-lang-light a { flex: 1; padding: 0.6rem 0; text-align: center; color: #43474e; font-weight: 700; font-size: 0.9rem; }
.pn-lang-light a:hover { color: var(--pn-blue); }
.pn-lang-light a.on { background: var(--pn-blue); color: #fff; }

/* Barre principale */
.pn-header {
    position: sticky;
    top: 0;
    z-index: 1030;
    background: #fff;
    border-bottom: 1px solid var(--pn-border);
    font-family: "Inter", sans-serif;
}
.pn-bar { display: flex; align-items: center; gap: 1.5rem; min-height: var(--pn-bar-height); }
.pn-brand { display: flex; align-items: center; gap: 0.75rem; flex-shrink: 0; text-decoration: none; }
.pn-brand img { object-fit: contain; }
.pn-brand span { font-size: 1.375rem; font-weight: 800; letter-spacing: -0.02em; color: var(--pn-blue); }

.pn-nav { align-items: center; margin: 0 auto; }
.pn-nav-item {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    height: var(--pn-bar-height);
    padding: 0 0.85rem;
    border: 0;
    background: none;
    font: 600 0.95rem/1 "Inter", sans-serif;
    color: var(--pn-text);
    text-decoration: none;
    white-space: nowrap;
    cursor: pointer;
}
.pn-nav-item::after {
    content: "";
    position: absolute;
    left: 0.85rem;
    right: 0.85rem;
    bottom: 0;
    height: 3px;
    border-radius: 3px 3px 0 0;
    background: var(--pn-red);
    transform: scaleX(0);
    transition: transform 0.2s;
}
.pn-nav-item:hover,
.pn-nav-item.is-current,
.pn-nav-item[aria-expanded="true"] { color: var(--pn-blue); }
.pn-nav-item:hover::after,
.pn-nav-item.is-current::after,
.pn-nav-item[aria-expanded="true"]::after { transform: scaleX(1); }
.pn-nav-item .mdi { font-size: 1.1rem; transition: transform 0.2s; }
.pn-nav-item[aria-expanded="true"] .mdi { transform: rotate(180deg); }
.pn-nav-item:focus-visible { outline: 2px solid var(--pn-red); outline-offset: -4px; border-radius: 6px; }

.pn-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    height: 44px;
    padding: 0 1.4rem;
    border-radius: 999px;
    background: var(--pn-red);
    color: #fff;
    font-weight: 700;
    font-size: 0.875rem;
    text-decoration: none;
    flex-shrink: 0;
    transition: background-color 0.15s;
}
.pn-cta:hover, .pn-cta:focus { background: var(--pn-red-dark); color: #fff; }

.pn-burger {
    margin-left: auto;
    width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 0;
    border-radius: 12px;
    background: var(--pn-surface);
    color: var(--pn-blue);
    font-size: 1.5rem;
}

/* Méga-menus */
.pn-mega {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background: #fff;
    border-top: 1px solid var(--pn-border);
    border-bottom: 1px solid var(--pn-border);
    box-shadow: 0 24px 48px -12px rgba(0, 32, 69, 0.18);
}
.pn-mega[hidden] { display: none !important; }
.pn-mega-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) 360px;
    gap: 3rem;
    padding-top: 2.25rem;
    padding-bottom: 2.5rem;
}
.pn-mega-title {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--pn-red);
    margin-bottom: 0.75rem;
}
.pn-mega-link {
    display: block;
    margin: 0 -0.875rem;
    padding: 0.75rem 0.875rem;
    border-radius: 10px;
    text-decoration: none;
    transition: background-color 0.15s;
}
.pn-mega-link > span { display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; font-size: 1rem; font-weight: 600; color: var(--pn-blue); }
.pn-mega-link small { display: block; margin-top: 0.2rem; font-size: 0.85rem; line-height: 1.45; color: var(--pn-muted); }
.pn-mega-link .mdi { color: var(--pn-red); opacity: 0; transform: translateX(-4px); transition: opacity 0.15s, transform 0.15s; }
.pn-mega-link:hover, .pn-mega-link:focus-visible { background: var(--pn-surface); }
.pn-mega-link:hover .mdi, .pn-mega-link:focus-visible .mdi { opacity: 1; transform: none; }

/* Carte mise en avant des méga-menus */
.pn-feature {
    position: relative;
    overflow: hidden;
    background: var(--pn-blue);
    color: #fff;
}
.pn-feature::before {
    content: "";
    position: absolute;
    right: -60px;
    top: -60px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    border: 28px solid rgba(255, 255, 255, 0.06);
    pointer-events: none;
}
.pn-feature { display: flex; flex-direction: column; gap: 0.75rem; padding: 1.75rem; border-radius: 16px; }
.pn-feature-kicker { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--pn-pink); }
.pn-feature-title { font-size: 1.5rem; font-weight: 800; line-height: 1.2; letter-spacing: -0.02em; }
.pn-feature p { margin: 0; font-size: 0.875rem; line-height: 1.55; color: #c9d6ea; }
.pn-feature-cta { align-self: flex-start; margin-top: auto; padding-bottom: 4px; border-bottom: 2px solid var(--pn-red); color: #fff; font-weight: 700; font-size: 0.875rem; text-decoration: none; }
.pn-feature-cta:hover { color: var(--pn-pink); }

/* Tiroir (mobile et tablette) */
.pn-drawer { font-family: "Inter", sans-serif; --bs-offcanvas-width: min(390px, 100vw); }
.pn-drawer-head { display: flex; align-items: center; justify-content: space-between; height: 68px; padding: 0 1rem; border-bottom: 1px solid var(--pn-border); flex-shrink: 0; }
.pn-drawer-head .pn-brand span { font-size: 1.2rem; }
.pn-drawer-body { flex: 1; overflow-y: auto; padding: 0.5rem 1rem; }
.pn-acc { border-bottom: 1px solid #eef1f3; }
.pn-acc-btn {
    display: flex;
    width: 100%;
    align-items: center;
    justify-content: space-between;
    min-height: 56px;
    padding: 0 0.25rem;
    border: 0;
    background: none;
    font: 700 1.05rem/1.2 "Inter", sans-serif;
    color: var(--pn-blue);
    text-align: left;
    text-decoration: none;
}
.pn-acc-btn:hover { color: var(--pn-blue); }
.pn-acc-btn .mdi { font-size: 1.25rem; color: #74777f; transition: transform 0.2s; }
.pn-acc-btn:not(.collapsed)[data-bs-toggle] .mdi { transform: rotate(180deg); color: var(--pn-red); }
.pn-acc-links { display: flex; flex-direction: column; gap: 2px; padding-bottom: 0.75rem; }
.pn-acc-links a {
    position: relative;
    display: flex;
    align-items: center;
    min-height: 44px;
    padding: 0 0.875rem;
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--pn-text);
    text-decoration: none;
}
.pn-acc-links a:hover { background: var(--pn-surface); color: var(--pn-blue); }
.pn-acc-links a.active { background: var(--pn-surface); color: var(--pn-blue); font-weight: 700; }
.pn-acc-links a.active::before { content: ""; position: absolute; left: 0; top: 10px; bottom: 10px; width: 3px; border-radius: 0 3px 3px 0; background: var(--pn-red); }
.pn-drawer-foot { display: flex; flex-direction: column; gap: 0.75rem; padding: 1rem; border-top: 1px solid var(--pn-border); background: #f7fafc; }
.pn-drawer-foot .pn-cta { height: 50px; font-size: 0.95rem; }
.pn-drawer-intranet { font-size: 0.875rem; font-weight: 600; color: #43474e; text-decoration: none; padding: 0.75rem 0.25rem; }

@media (max-width: 1199.98px) {
    .pn-nav-item { padding: 0 0.6rem; font-size: 0.9rem; }
    .pn-nav-item::after { left: 0.6rem; right: 0.6rem; }
    .pn-mega-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) 300px; gap: 2rem; }
}
@media (min-width: 992px) and (max-width: 1199.98px) {
    .pn-bar .pn-brand span { display: none; }
}
@media (max-width: 991.98px) {
    :root { --pn-bar-height: 64px; }
    .pn-brand img { width: 40px; height: 40px; }
}
@media (prefers-reduced-motion: reduce) {
    .pn-nav-item::after, .pn-nav-item .mdi, .pn-mega-link .mdi, .pn-acc-btn .mdi { transition: none; }
}