/* =========================================================
   SNSI 2026 — layout: header, navigazione, drawer, testata, footer
   ========================================================= */

/* ---------- header: trasparente sopra l'hero, nero allo scroll ---------- */
.hdr { position: fixed; inset: 0 0 auto; z-index: 50; color: var(--white); background: var(--black); box-shadow: 0 2px 20px rgba(0, 0, 0, .25); transition: background .35s var(--ease), box-shadow .35s var(--ease); }
.hdr::before { content: ""; position: absolute; inset: 0 0 -40px; background: linear-gradient(rgba(0, 0, 0, .5), transparent); pointer-events: none; opacity: 0; transition: opacity .35s; }
.has-hero .hdr:not(.is-solid) { background: transparent; box-shadow: none; }
.has-hero .hdr:not(.is-solid)::before { opacity: 1; }
.hdr__bar { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 1rem; height: var(--hdr-bar); }
.hdr__logo { flex: none; }
.hdr__logo img { height: 40px; width: auto; }
.hdr__actions { display: flex; align-items: center; gap: .4rem; }
.hdr__actions .hdr__login, .hdr__actions .hdr__search { display: none; }

.icon-btn { width: 44px; height: 44px; display: inline-grid; place-items: center; color: var(--white); transition: color .2s; }
.icon-btn .icon { width: 22px; height: 22px; }
.icon-btn:hover { color: var(--yellow); }
.icon-btn--pill {
  width: auto; height: 40px; display: inline-flex; align-items: center; gap: .35rem; padding: 0 .8rem;
  border: 1px solid rgba(255, 255, 255, .3); font-family: var(--ff-h); font-weight: 600; letter-spacing: .1em; font-size: .85rem;
}
.icon-btn--pill .icon { width: 16px; height: 16px; }
.icon-btn--pill:hover { border-color: var(--yellow); color: var(--white); }
.icon-btn--light { color: var(--ink); }
.icon-btn--light:hover { color: var(--blue); }

/* menu desktop */
.nav { display: none; }
@media (min-width: 1080px) {
  .nav { display: block; }
  .nav__list { display: flex; gap: 1.6rem; }
  .nav__item { position: relative; }
  .nav__link {
    display: flex; align-items: center; gap: .3rem; padding: .4rem 0; border-bottom: 2px solid transparent;
    font-family: var(--ff-h); font-size: .98rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: rgba(255, 255, 255, .85); white-space: nowrap;
  }
  .nav__link .icon { opacity: .7; transition: transform .2s; }
  .nav__item:hover > .nav__link, .nav__item:focus-within > .nav__link, .nav__link[aria-current] { color: var(--white); border-color: var(--yellow); }
  .nav__item.is-open > .nav__link .icon, .nav__item:hover > .nav__link .icon { transform: rotate(180deg); }
  .nav__dd {
    position: absolute; top: calc(100% + 14px); inset-inline-start: -1.2rem; min-width: 270px; padding: .5rem 0;
    background: var(--white); border-top: 3px solid var(--yellow); box-shadow: 0 24px 48px -20px rgba(0, 0, 0, .45);
    opacity: 0; visibility: hidden; transform: translateY(6px); transition: .2s var(--ease);
  }
  .nav__dd::before { content: ""; position: absolute; inset: -17px 0 auto 0; height: 17px; }
  .nav__item:hover .nav__dd, .nav__item.is-open .nav__dd, .nav__item:focus-within .nav__dd { opacity: 1; visibility: visible; transform: none; }
  .nav__dd a { display: block; padding: .6rem 1.2rem; font-size: .98rem; color: var(--ink-2); border-inline-start: 3px solid transparent; }
  .nav__dd a:hover, .nav__dd a[aria-current] { background: var(--off); color: var(--blue); border-color: var(--blue); }
  .hdr__actions .hdr__menu, .hdr__actions .hdr__login-icon { display: none; }
  .hdr__actions .hdr__login, .hdr__actions .hdr__search { display: inline-flex; }
}

/* ---------- selettore lingua: tendina su desktop, pannello su mobile ---------- */
.lang-dd { position: relative; }
.lang-dd__chev { display: none; transition: transform .2s; }
.lang-dd__btn[aria-expanded="true"] .lang-dd__chev { transform: rotate(180deg); }
.lang-menu {
  position: absolute; top: calc(100% + 12px); inset-inline-end: 0; z-index: 60; width: 340px; padding: .6rem;
  background: var(--white); border-top: 3px solid var(--yellow); box-shadow: 0 24px 48px -20px rgba(0, 0, 0, .45); color: var(--ink);
}
.lang-menu__title { padding: .3rem .6rem .5rem; font-family: var(--ff-h); font-size: .8rem; font-weight: 600; letter-spacing: .2em; text-transform: uppercase; color: var(--muted); }
.lang-menu__list { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; }
.lang-menu__list a { display: flex; align-items: center; justify-content: space-between; gap: .5rem; padding: .55rem .7rem; font-size: .95rem; color: var(--ink-2); }
.lang-menu__list a:hover, .lang-menu__list a.is-current { background: var(--off); color: var(--blue); }
.lang-menu__list a.is-current { font-weight: 600; }
.lang-menu__list small { font-family: var(--ff-h); font-size: .75rem; letter-spacing: .1em; color: var(--muted); }
.lang-menu__list .icon { color: var(--blue); }
@media (min-width: 1080px) { .lang-dd__chev { display: block; } }

/* ---------- drawer (menu mobile e lingue) ---------- */
.drawer { position: fixed; inset: 0; z-index: 70; background: var(--white); overflow: auto; overscroll-behavior: contain; opacity: 0; transition: opacity .25s; }
.drawer.is-open { opacity: 1; }
.drawer__top { position: sticky; top: 0; z-index: 2; background: var(--black); color: var(--white); }
.drawer__bar { display: flex; align-items: center; justify-content: space-between; height: var(--hdr-bar); }
.drawer__bar img { height: 40px; width: auto; }
.drawer__title { font-family: var(--ff-h); font-size: 1.05rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; }
.drawer__body { padding: 16px var(--pad) calc(32px + env(safe-area-inset-bottom)); max-width: 760px; margin-inline: auto; }
.drawer__search { display: flex; align-items: center; gap: .6rem; margin-bottom: .6rem; border: 2px solid var(--ink); padding: 0 1rem; }
.drawer__search .icon { color: var(--muted); }
.drawer__search input { flex: 1; min-width: 0; height: 50px; border: 0; background: none; outline: none; }
.drawer__links { margin-top: 1.4rem; display: flex; flex-wrap: wrap; gap: .4rem 1.2rem; font-size: .95rem; color: var(--muted); }
.drawer__links a:hover { color: var(--blue); }
.drawer__foot { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1.6rem; }

/* accordion (menu mobile, FAQ) */
.acc { border-bottom: 1px solid var(--line); }
.acc > summary {
  list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 1.05rem 0;
  font-family: var(--ff-h); font-size: 1.4rem; font-weight: 700; line-height: 1.15; text-transform: uppercase; color: var(--ink);
}
.acc > summary::-webkit-details-marker { display: none; }
.acc__chev { width: 22px; height: 22px; color: var(--blue); transition: transform .25s; }
.acc[open] .acc__chev { transform: rotate(180deg); }
.acc__body { padding-bottom: 1rem; }
.drawer .acc__body a { display: block; padding: .6rem .25rem .6rem 1rem; color: var(--ink-2); border-inline-start: 3px solid var(--line); }
.drawer .acc__body a:hover, .drawer .acc__body a[aria-current] { color: var(--blue); border-color: var(--blue); }
.acc__single { display: flex; justify-content: space-between; align-items: center; padding: 1.05rem 0; border-bottom: 1px solid var(--line); font-family: var(--ff-h); font-size: 1.4rem; font-weight: 700; text-transform: uppercase; color: var(--ink); }
.acc__single .icon { color: var(--blue); }

.quick-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; margin-top: 1.6rem; background: var(--line); border: 1px solid var(--line); }
.quick-tile { display: flex; flex-direction: column; gap: .7rem; padding: 1rem; background: var(--white); font-family: var(--ff-h); font-size: 1rem; font-weight: 600; line-height: 1.2; text-transform: uppercase; color: var(--ink); }
.quick-tile .icon { width: 22px; height: 22px; color: var(--blue); }
.quick-tile:hover { background: var(--off); }

.lang-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.lang-list a { display: flex; justify-content: space-between; align-items: center; gap: .5rem; padding: .95rem 1rem; background: var(--white); font-weight: 500; }
.lang-list small { font-family: var(--ff-h); color: var(--muted); font-size: .78rem; letter-spacing: .1em; }
.lang-list a:hover { background: var(--off); }
.lang-list a.is-current { color: var(--blue); background: var(--blue-soft); }
@media (min-width: 700px) { .lang-list { grid-template-columns: repeat(3, 1fr); } }

/* ---------- testata delle pagine senza hero: banda nera ---------- */
.page-head { position: relative; padding: calc(var(--hdr) + clamp(32px, 6vw, 72px)) 0 clamp(32px, 5vw, 56px); background: var(--black); color: var(--white); overflow: hidden; }
.page-head::after { content: ""; position: absolute; top: 0; inset-inline-end: clamp(16px, 4vw, 48px); width: 3px; height: 60%; background: linear-gradient(var(--yellow), transparent); opacity: .8; }
.page-head__title { color: var(--white); text-transform: uppercase; font-size: clamp(2.4rem, 7vw, 4.6rem); line-height: .95; margin-top: .4rem; max-width: 20ch; }
.page-head--center { text-align: center; }
.page-head--center .page-head__title { margin-inline: auto; }
.page-head .muted { color: rgba(255, 255, 255, .75); }
.big-code { font-family: var(--ff-h); font-weight: 700; font-size: clamp(5rem, 18vw, 9rem); line-height: 1; color: var(--yellow); }

/* briciole */
.crumbs ol { display: flex; flex-wrap: wrap; align-items: center; gap: .4rem .6rem; font-family: var(--ff-h); font-size: .85rem; letter-spacing: .12em; text-transform: uppercase; color: rgba(255, 255, 255, .7); }
.crumbs li { display: inline-flex; align-items: center; gap: .6rem; }
.crumbs li + li::before { content: "/"; opacity: .5; }
.crumbs a:hover { color: var(--yellow); }
.crumbs [aria-current] { color: var(--white); }
html:is([lang="ja"], [lang="ko"], [lang^="zh"], [lang="ar"], [lang="fa"]) .crumbs ol { letter-spacing: var(--track); }

/* ---------- footer (nero) ---------- */
.ftr { background: var(--black); color: rgba(255, 255, 255, .7); padding: clamp(48px, 7vw, 80px) 0 calc(2rem + env(safe-area-inset-bottom)); position: relative; }
.ftr__top { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: flex-end; gap: 1.5rem; margin-bottom: 2.5rem; }
.ftr__logo img { height: 46px; width: auto; }
.ftr__tag { margin-top: .7rem; max-width: 38ch; font-family: var(--ff-h); font-size: .9rem; letter-spacing: var(--track); text-transform: uppercase; color: rgba(255, 255, 255, .5); }
.ftr__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem 1.5rem; }
.ftr__title { font-family: var(--ff-h); font-size: .85rem; font-weight: 700; letter-spacing: .2em; text-transform: uppercase; color: rgba(255, 255, 255, .5); margin-bottom: .8rem; }
.ftr__col a { display: block; padding: .25rem 0; font-size: .98rem; }
.ftr__col a:hover { color: var(--yellow); }
.ftr__bottom { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 1rem 2rem; margin-top: 2.5rem; padding-top: 1.5rem; border-top: 1px solid rgba(255, 255, 255, .1); font-size: .9rem; }
.ftr__social { display: flex; flex-wrap: wrap; gap: .6rem 1.4rem; font-family: var(--ff-h); font-size: .85rem; font-weight: 600; letter-spacing: .15em; text-transform: uppercase; }
.ftr__social a { display: inline-flex; align-items: center; gap: .45rem; }
.ftr__social .icon { width: 16px; height: 16px; }
.ftr__social a:hover { color: var(--yellow); }
.ftr__legal { display: flex; flex-wrap: wrap; gap: .4rem 1.2rem; }
.ftr__legal a:hover, .ftr__legal .link-btn:hover { color: var(--white); }
.ftr__legal .link-btn { text-decoration: none; }
.ftr__tm { margin: 1rem 0 0; font-size: .72rem; line-height: 1.5; opacity: .6; }
@media (min-width: 900px) {
  .ftr__grid { grid-template-columns: repeat(4, 1fr); }
  .ftr__grid--3 { grid-template-columns: repeat(3, 1fr); }
  .ftr__grid--5 { grid-template-columns: repeat(5, 1fr); }
}
@media (min-width: 640px) and (max-width: 899px) { .ftr__grid { grid-template-columns: repeat(3, 1fr); } }

.to-top {
  position: fixed; inset-inline-end: 16px; bottom: calc(16px + env(safe-area-inset-bottom)); z-index: 40;
  width: 46px; height: 46px; display: grid; place-items: center; background: var(--yellow); color: var(--black);
  opacity: 0; transform: translateY(12px); pointer-events: none; transition: .3s var(--ease);
}
.to-top.is-visible { opacity: 1; transform: none; pointer-events: auto; }
.to-top:hover { background: var(--black); color: var(--yellow); }

/* ---------- barra servizi sopra il menu (social + verifiche, registrazione, controllo qualità) ---------- */
.hdr__top { display: none; }
@media (min-width: 1080px) {
  :root { --top: 36px; --hdr: calc(var(--hdr-bar) + var(--top)); }
  .hdr__top { display: block; position: relative; z-index: 2; height: var(--top); background: rgba(0, 0, 0, .55); border-bottom: 1px solid rgba(255, 255, 255, .08); font-size: .8rem; transition: background .35s var(--ease); }
  .hdr.is-solid .hdr__top, body:not(.has-hero) .hdr__top { background: #0d0d0d; }
  .hdr__top-in { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; height: 100%; }
  .hdr__social { display: flex; gap: .2rem; }
  .hdr__social a { width: 28px; height: 28px; display: grid; place-items: center; color: rgba(255, 255, 255, .6); transition: color .2s; }
  .hdr__social a:hover { color: var(--yellow); }
  .hdr__social svg { width: 15px; height: 15px; }
  .hdr__util { display: flex; align-items: center; }
  .hdr__util li + li { border-inline-start: 1px solid rgba(255, 255, 255, .15); }
  .hdr__util a { display: inline-flex; align-items: center; gap: .45rem; padding: 0 1rem; height: var(--top); color: rgba(255, 255, 255, .78); font-family: var(--ff-h); font-weight: 600; letter-spacing: .08em; text-transform: uppercase; white-space: nowrap; transition: color .2s, background .2s; }
  .hdr__util li:last-child a { padding-inline-end: 0; }
  .hdr__util .icon { width: 14px; height: 14px; color: var(--yellow); }
  .hdr__util a:hover { color: var(--white); background: rgba(255, 255, 255, .06); }
}

/* slogan DiveUpYourLife (font Banshee Std, dai manuali SNSI) sotto il logo del footer */
.ftr__slogan { display: block; width: min(240px, 70vw); height: auto; }
/* da tablet in su: slogan al centro della pagina, allineato a metà altezza del blocco logo + scritta */
@media (min-width: 760px) {
  .ftr__top { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; }
  .ftr__slogan { width: clamp(220px, 24vw, 300px); }
}