/* =====================================================================
   IRIGuest — Header / menu globale (premium, blu/bianco)
   ---------------------------------------------------------------------
   Riutilizza le variabili di palette già definite in style-index2.css.
   Markup generato da scripts/render-header.js. JS: scripts/site-nav.js
   (solo progressive enhancement — i link funzionano anche senza JS).
   Breakpoint mobile: 1080px (sopra: barra completa; sotto: drawer).
   ===================================================================== */

:root { --header-h: 74px; }

/* ---------- Guscio ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  border-bottom: 1px solid rgba(8, 32, 43, 0.07);
}
/* Sfondo translucido su pseudo-elemento: l'header NON deve avere
   backdrop-filter, altrimenti creerebbe un containing block che spezza
   il position:fixed del drawer mobile (lo ridurrebbe all'altezza barra). */
.site-header::before {
  content: "";
  position: absolute; inset: 0;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  z-index: -1;
}
.site-header__inner {
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 22px;
}

/* ---------- Brand ---------- */
.site-header__brand { display: flex; align-items: center; gap: 11px; flex: 0 0 auto; }
.site-header__logo { width: 40px; height: 40px; }
.site-header__brand-text { display: flex; flex-direction: column; line-height: 1; }
.site-header__brand-text .brand-name { font-size: 1.45rem; color: var(--ink); letter-spacing: .01em; }
.site-header__brand-tag {
  font-size: .57rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--text-muted); margin-top: 4px; font-weight: 400;
}

/* ---------- Nav (contenitore) ---------- */
.site-nav { display: flex; align-items: center; flex: 1 1 auto; min-width: 0; }
.site-nav__list {
  display: flex; align-items: center; flex-wrap: nowrap; gap: 4px;
  list-style: none; margin: 0 0 0 22px; padding: 0; min-width: 0;
}
.site-nav__item { position: relative; }

/* ---------- Voce di primo livello (button dropdown + link semplice) ---------- */
.site-nav__top {
  display: inline-flex; align-items: center; gap: 5px; white-space: nowrap;
  font-family: var(--sans); font-size: .92rem; font-weight: 500;
  color: var(--text-muted);
  background: none; border: 0; cursor: pointer;
  padding: 10px 14px; border-radius: 11px;
  transition: color .18s ease, background-color .18s ease;
}
.site-nav__top:hover,
.site-nav__item--has-panel:focus-within .site-nav__top,
.site-nav__item.is-open .site-nav__top { color: var(--ink); }
.site-nav__top:focus-visible { outline: 2px solid var(--bright); outline-offset: 2px; }
.site-nav__chev { width: 16px; height: 16px; transition: transform .22s ease; opacity: .8; }

/* ---------- Pannello dropdown (desktop) ---------- */
.site-nav__panel {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 320px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  padding: 10px;
  opacity: 0; visibility: hidden; transform: translateY(8px);
  pointer-events: none;
  transition: opacity .2s ease, transform .2s ease, visibility .2s;
}
/* ponte invisibile per non perdere l'hover nel gap sopra il pannello */
.site-nav__panel::before {
  content: ""; position: absolute; left: 0; right: 0; top: -12px; height: 12px;
}
.site-nav__item--has-panel:hover .site-nav__panel,
.site-nav__item--has-panel:focus-within .site-nav__panel,
.site-nav__item.is-open .site-nav__panel {
  opacity: 1; visibility: visible; transform: translateY(0); pointer-events: auto;
}
.site-nav__item--has-panel:hover .site-nav__chev,
.site-nav__item.is-open .site-nav__chev { transform: rotate(180deg); }

.site-nav__panel-list { list-style: none; margin: 0; padding: 0; }
.site-nav__link {
  display: block;
  padding: 11px 14px;
  border-radius: 10px;
  transition: background-color .16s ease;
}
.site-nav__link:hover,
.site-nav__link:focus-visible { background: var(--surface); }
.site-nav__link:focus-visible { outline: 2px solid var(--bright); outline-offset: -2px; }
.site-nav__link-title {
  display: block; font-size: .94rem; font-weight: 600; color: var(--ink);
}
.site-nav__link-desc {
  display: block; font-size: .8rem; line-height: 1.45; color: var(--text-muted); margin-top: 2px;
}

/* ---------- Azioni (CTA + lingua) ---------- */
.site-nav__actions { display: flex; align-items: center; gap: 16px; margin-left: auto; padding-left: 8px; flex: 0 0 auto; }
.site-nav__cta { min-height: 46px; padding: 0 22px; font-size: .9rem; white-space: nowrap; }
.site-nav__lang {
  display: flex; align-items: center; gap: 8px; white-space: nowrap;
  font-size: .82rem; font-weight: 600;
  padding-left: 16px; border-left: 1px solid var(--line);
}
.site-nav__lang strong { color: var(--ink); }
.site-nav__lang a { color: var(--text-muted); font-weight: 500; transition: color .15s ease; }
.site-nav__lang a:hover { color: var(--teal); }
.site-nav__lang a:focus-visible { outline: 2px solid var(--bright); outline-offset: 2px; border-radius: 4px; }

/* ---------- Burger (solo mobile) ---------- */
.site-header__burger {
  display: none;
  align-items: center; justify-content: center;
  width: 46px; height: 46px; flex: 0 0 auto; margin-left: auto;
  border-radius: 12px; border: 1px solid var(--line);
  background: #fff; color: var(--ink); cursor: pointer;
}
.site-header__burger:focus-visible { outline: 2px solid var(--bright); outline-offset: 2px; }
.site-header__burger-box { position: relative; width: 22px; height: 16px; }
.site-header__burger-box span {
  position: absolute; left: 0; width: 100%; height: 2px; border-radius: 2px;
  background: currentColor; transition: transform .26s ease, opacity .2s ease, top .26s ease;
}
.site-header__burger-box span:nth-child(1) { top: 0; }
.site-header__burger-box span:nth-child(2) { top: 7px; }
.site-header__burger-box span:nth-child(3) { top: 14px; }
.site-header.is-menu-open .site-header__burger-box span:nth-child(1) { top: 7px; transform: rotate(45deg); }
.site-header.is-menu-open .site-header__burger-box span:nth-child(2) { opacity: 0; }
.site-header.is-menu-open .site-header__burger-box span:nth-child(3) { top: 7px; transform: rotate(-45deg); }

/* =====================================================================
   DESKTOP STRETTO (1081–1240px) — comprime per non far mai "rompere"
   la barra: il pulsante "Richiedi demo" resta sempre in linea.
   Utile soprattutto con etichette lunghe (DE/FR).
   ===================================================================== */
@media (min-width: 1081px) and (max-width: 1240px) {
  .site-header__inner { gap: 14px; }
  .site-nav__list { margin-left: 10px; gap: 0; }
  .site-nav__top { padding: 10px 9px; font-size: .86rem; }
  .site-nav__actions { gap: 10px; padding-left: 4px; }
  .site-nav__cta { padding: 0 15px; font-size: .84rem; }
  .site-nav__lang { gap: 6px; padding-left: 10px; font-size: .78rem; }
}

/* =====================================================================
   MOBILE / TABLET  (≤ 1080px) — drawer a tutta larghezza + accordion
   ===================================================================== */
@media (max-width: 1080px) {
  .site-header__burger { display: inline-flex; }

  .site-nav {
    position: fixed;
    inset: var(--header-h) 0 0 0;
    flex-direction: column;
    align-items: stretch;
    flex: none;
    background: var(--paper);
    padding: 14px clamp(18px, 5vw, 28px) 28px;
    overflow-y: auto;
    overscroll-behavior: contain;
    border-top: 1px solid var(--line);
    transform: translateY(-10px);
    opacity: 0; visibility: hidden;
    transition: opacity .24s ease, transform .24s ease, visibility .24s;
  }
  .site-header.is-menu-open .site-nav {
    transform: translateY(0); opacity: 1; visibility: visible;
  }

  .site-nav__list { flex-direction: column; align-items: stretch; gap: 2px; margin: 0; }
  .site-nav__item { border-bottom: 1px solid var(--line); }

  .site-nav__top {
    width: 100%; justify-content: space-between;
    padding: 16px 6px; font-size: 1.02rem; border-radius: 0; color: var(--ink);
  }
  .site-nav__chev { width: 20px; height: 20px; }

  /* dropdown → accordion: chiuso di default, apre con .is-open (JS) */
  .site-nav__panel {
    position: static; min-width: 0;
    border: 0; box-shadow: none; border-radius: 0;
    padding: 0; margin: 0;
    opacity: 1; visibility: visible; transform: none; pointer-events: auto;
    max-height: 0; overflow: hidden;
    transition: max-height .3s ease;
  }
  .site-nav__panel::before { display: none; }
  .site-nav__item.is-open .site-nav__panel { max-height: 640px; }
  .site-nav__panel-list { padding: 2px 0 12px; }
  .site-nav__link { padding: 10px 12px; }
  .site-nav__link:hover, .site-nav__link:focus-visible { background: var(--surface); }

  .site-nav__actions {
    flex-direction: column; align-items: stretch; gap: 16px;
    margin: 22px 0 0; padding: 0;
  }
  .site-nav__cta { width: 100%; min-height: 52px; font-size: .98rem; }
  .site-nav__lang {
    justify-content: center; gap: 14px; font-size: .95rem;
    padding: 4px 0 0; border-left: 0;
  }

  body.nav-locked { overflow: hidden; }
}

@media (max-width: 560px) {
  .site-header__inner { min-height: 64px; }
  :root { --header-h: 64px; }
}

/* ---------- Rispetto delle preferenze di movimento ---------- */
@media (prefers-reduced-motion: reduce) {
  .site-nav, .site-nav__panel, .site-nav__chev,
  .site-header__burger-box span { transition: none; }
}