/* ==========================================================================
   COMPONENTI · BURGER E MENU MOBILE
   Tendina a schermo intero; apertura/chiusura, focus trap ed ESC in
   js/nav-mobile.js.
   ========================================================================== */

.burger {
  display: grid;
  place-content: center;
  gap: 5px;
  width: 46px;
  height: 46px;
  flex: none;
  border: 2px solid var(--oro);
}

.burger__bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink-invert);
  transition: transform var(--t) var(--ease-out), opacity var(--t-fast) var(--ease);
}

/* la X: stato guidato da aria-expanded, non da una classe parallela */
.burger[aria-expanded="true"] .burger__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger[aria-expanded="true"] .burger__bar:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] .burger__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }


/* --- Tendina ------------------------------------------------------------- */

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 99;
  display: flex;
  align-items: flex-end;
  padding: calc(var(--header-h) + var(--space-6)) var(--gutter) var(--space-8);
  background: linear-gradient(160deg, var(--granata-700), var(--granata-900) 70%, var(--night));
  transform: translateY(-100%);
  transition: transform 450ms var(--ease-out);
  overflow-y: auto;
}

.mobile-menu[hidden] { display: none; }
.mobile-menu.is-open { transform: translateY(0); }

.mobile-menu__inner { width: 100%; }

.mobile-menu__list { border-top: 1px solid rgba(218, 164, 20, 0.3); }

.mobile-menu__list a {
  display: flex;
  align-items: baseline;
  gap: var(--space-4);
  min-height: 44px;
  padding: var(--space-4) 0;
  border-bottom: 1px solid rgba(218, 164, 20, 0.3);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.3rem, 6vw, 2rem);
  text-transform: uppercase;
  letter-spacing: -0.01em;
  color: var(--ink-invert);
}

.mobile-menu__list a:active { color: var(--oro); }

.mobile-menu__num {
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--oro);
}

.mobile-menu__sign {
  margin-top: var(--space-6);
  font-size: var(--step--1);
  letter-spacing: 0.06em;
  color: var(--ink-invert-muted);
}

/* body bloccato mentre la tendina è aperta */
body.is-locked { overflow: hidden; }

@media (min-width: 1200px) {
  .burger { display: none; }
}