/* ==========================================================================
   Navigazione unica di tutto il sito (markup in site/partials/header.html).
   Barra in alto su desktop, menu a tutto schermo sotto i 920px: gli stessi della home.
   Classi "pa-nav-*" / "pa-menu" e colori propri: non dipende dai fogli della pagina.
   ========================================================================== */
:root { --pa-nav-h: 76px; }

.pa-nav {
    --pn-concrete: #EDEFF2;
    --pn-iron: #1B1E24;
    --pn-iron-2: #262A32;
    --pn-iron-3: #353A44;
    --pn-steel: #5A6270;
    --pn-steel-light: #9AA1AD;
    --pn-line: rgba(27, 30, 36, 0.10);
    --pn-brand: #FA7402;
    --pn-ease-out: cubic-bezier(0.16, 1, 0.3, 1);

    position: fixed;
    inset: 0 0 auto 0;
    z-index: 1000;
    height: var(--pa-nav-h);
    margin: 0;
    padding: 0;
    color: var(--pn-iron);
    font-family: 'PerformFont6', system-ui, sans-serif;
    line-height: 1.5;
    transition: background-color 0.4s ease, box-shadow 0.4s ease, height 0.4s var(--pn-ease-out), transform 0.45s var(--pn-ease-out);
}

.pa-nav.is-hidden { transform: translateY(-100%); }
.pa-nav:focus-within { transform: none; }

.pa-nav.is-scrolled {
    --pa-nav-h: 64px;
    background: rgba(237, 239, 242, 0.82);
    backdrop-filter: saturate(1.4) blur(18px);
    -webkit-backdrop-filter: saturate(1.4) blur(18px);
    box-shadow: 0 1px 0 var(--pn-line);
}

.pa-nav-inner {
    max-width: 1240px;
    height: 100%;
    margin: 0 auto;
    padding: 0 clamp(16px, 4vw, 40px);
    display: flex;
    align-items: center;
    gap: 32px;
    box-sizing: border-box;
}

.pa-nav-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--pn-iron);
    font-weight: 800;
    font-size: 1.25rem;
    letter-spacing: -0.01em;
    text-decoration: none;
}
.pa-nav-logo-img { width: 34px; height: 34px; border-radius: 9px; }

.pa-nav-links {
    display: flex;
    gap: 4px;
    margin: 0 0 0 auto;
    padding: 0;
}

.pa-nav-links a {
    position: relative;
    padding: 8px 14px;
    border-radius: 999px;
    color: var(--pn-steel);
    font-size: 0.94rem;
    font-weight: 600;
    text-decoration: none;
    white-space: nowrap;
    transition: color 0.2s ease, background-color 0.2s ease;
}
.pa-nav-links a::after { content: none; }
.pa-nav-links a:hover { color: var(--pn-iron); background: rgba(27, 30, 36, 0.06); }
.pa-nav-links a.is-active { color: var(--pn-iron); background: rgba(27, 30, 36, 0.08); }

.pa-nav-cta {
    display: inline-flex;
    align-items: center;
    min-height: 42px;
    padding: 0 20px;
    border-radius: 999px;
    background: var(--pn-iron);
    color: #fff;
    font-size: 0.94rem;
    font-weight: 600;
    text-decoration: none;
    white-space: nowrap;
    transition: background-color 0.25s ease, color 0.25s ease;
}
.pa-nav-cta:hover { background: var(--pn-brand); color: var(--pn-iron); }

.pa-nav-burger {
    display: none;
    position: relative;
    width: 44px;
    height: 44px;
    margin-left: auto;
    padding: 0;
    border: 0;
    border-radius: 12px;
    background: transparent;
    cursor: pointer;
}
.pa-nav-burger span {
    position: absolute;
    left: 11px;
    width: 22px;
    height: 2px;
    border-radius: 2px;
    background: var(--pn-iron);
    transition: transform 0.35s var(--pn-ease-out), top 0.35s var(--pn-ease-out);
}
.pa-nav-burger span:first-child { top: 17px; }
.pa-nav-burger span:last-child { top: 25px; }
.pa-nav-burger.is-open span:first-child { top: 21px; transform: rotate(45deg); }
.pa-nav-burger.is-open span:last-child { top: 21px; transform: rotate(-45deg); }

/* barra di avanzamento: un timer che si riempie mentre leggi */
.pa-nav-progress {
    position: absolute;
    left: 0; right: 0; bottom: -1px;
    height: 2px;
    pointer-events: none;
}
.pa-nav-progress span {
    display: block;
    height: 100%;
    background: var(--pn-brand);
    transform-origin: left;
    transform: scaleX(0);
}

.pa-nav a:focus-visible,
.pa-nav button:focus-visible,
.pa-menu a:focus-visible,
.pa-menu summary:focus-visible { outline: 2px solid var(--pn-brand, #FA7402); outline-offset: 3px; }

/* ---------- Menu mobile a tutto schermo ---------- */
.pa-menu {
    --pn-iron: #1B1E24;
    --pn-iron-2: #262A32;
    --pn-iron-3: #353A44;
    --pn-steel-light: #9AA1AD;
    --pn-line-dark: rgba(255, 255, 255, 0.10);
    --pn-brand: #FA7402;
    --pn-ease-out: cubic-bezier(0.16, 1, 0.3, 1);

    position: fixed;
    inset: 0;
    z-index: 999;
    padding: calc(var(--pa-nav-h) + 24px) 24px 32px;
    background: var(--pn-iron);
    color: #fff;
    font-family: 'PerformFont6', system-ui, sans-serif;
    text-align: left;
    opacity: 0;
    transition: opacity 0.35s ease;
    overflow-y: auto;
    box-sizing: border-box;
}
.pa-menu.is-open { opacity: 1; }

.pa-menu > nav { display: flex; flex-direction: column; gap: 4px; width: 100%; margin: 0; }

.pa-menu nav > a {
    color: #fff;
    font-weight: 800;
    font-size: 2.6rem;
    line-height: 1.15;
    letter-spacing: -0.01em;
    text-decoration: none;
    transform: translateY(16px);
    opacity: 0;
    transition: transform 0.5s var(--pn-ease-out), opacity 0.5s ease, color 0.2s ease;
}
.pa-menu nav > a:hover { color: var(--pn-brand); }
.pa-menu.is-open nav > a { transform: none; opacity: 1; }
.pa-menu.is-open nav > a:nth-child(2) { transition-delay: 0.04s; }
.pa-menu.is-open nav > a:nth-child(3) { transition-delay: 0.08s; }
.pa-menu.is-open nav > a:nth-child(4) { transition-delay: 0.12s; }
.pa-menu.is-open nav > a:nth-child(5) { transition-delay: 0.16s; }
.pa-menu.is-open nav > a:nth-child(6) { transition-delay: 0.2s; }

.pa-menu .pa-menu-cta {
    margin-top: 24px;
    align-self: flex-start;
    padding: 14px 26px;
    border-radius: 999px;
    background: var(--pn-brand);
    color: var(--pn-iron);
    font-size: 1.05rem;
    font-weight: 600;
    letter-spacing: 0;
    line-height: 1.4;
}
.pa-menu .pa-menu-cta:hover { color: var(--pn-iron); }

/* selettore lingua dentro il menu scuro (lo sposta qui language-switcher.js) */
.pa-menu .language-switcher { margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--pn-line-dark); color: #fff; }
.pa-menu .language-switcher summary {
    justify-content: flex-start;
    padding: 10px 0;
    border: 0;
    background: transparent;
    box-shadow: none;
    color: var(--pn-steel-light);
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: normal;
    text-transform: none;
}
.pa-menu .language-switcher[open] summary { color: #fff; }
.pa-menu .language-switcher__menu { background: var(--pn-iron-2); box-shadow: inset 0 0 0 1px var(--pn-line-dark); }
.pa-menu .language-switcher__menu a,
.pa-menu .language-switcher__menu > span { color: var(--pn-steel-light); }
.pa-menu .language-switcher__menu a:hover,
.pa-menu .language-switcher__menu [aria-current="language"] { color: #fff; background: var(--pn-iron-3); }

/* menu aperto: la barra diventa scura come il menu */
body.pa-nav-open .pa-nav { background: var(--pn-iron); box-shadow: none; }
body.pa-nav-open .pa-nav-logo { color: #fff; }
body.pa-nav-open .pa-nav-burger span { background: #fff; }

@media (min-width: 921px) { .pa-menu { display: none !important; } }

/* laptop stretti: menu compatto, così anche FR e DE stanno su una riga */
@media (min-width: 921px) and (max-width: 1180px) {
    .pa-nav-inner { gap: 16px; }
    .pa-nav-links { gap: 0; }
    .pa-nav-links a { padding: 8px 8px; font-size: 0.88rem; }
    .pa-nav-cta { padding: 0 16px; font-size: 0.88rem; }
}

@media (max-width: 920px) {
    .pa-nav-links, .pa-nav-cta { display: none; }
    .pa-nav-burger { display: block; }
}

@media (prefers-reduced-motion: reduce) {
    .pa-nav, .pa-menu, .pa-menu nav > a, .pa-nav-burger span { transition: none; }
    .pa-menu nav > a { transform: none; opacity: 1; }
}