/* ==========================================================================
   Assinvest — animations.css
   Transizioni ed effetti. Tutto disattivabile via prefers-reduced-motion.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. SCROLL REVEAL — gli elementi entrano quando arrivano in viewport.
      Attivato da main.js che aggiunge .is-visible via IntersectionObserver.
   -------------------------------------------------------------------------- */
/* Nota: il prefisso .js è decisivo. La classe viene aggiunta dallo script in
   <head>; se il JavaScript è disattivato o fallisce, questa regola non si
   applica e il contenuto resta visibile invece di sparire. */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity var(--t-slow),
    transform var(--t-slow);
  will-change: opacity, transform;
}

.js [data-reveal="left"]  { transform: translateX(-32px); }
.js [data-reveal="right"] { transform: translateX(32px); }
.js [data-reveal="zoom"]  { transform: scale(.94); }

.js [data-reveal].is-visible {
  opacity: 1;
  transform: translate(0, 0) scale(1);
}

/* Effetto a cascata per gruppi di card */
[data-reveal-delay="1"] { transition-delay: 80ms; }
[data-reveal-delay="2"] { transition-delay: 160ms; }
[data-reveal-delay="3"] { transition-delay: 240ms; }
[data-reveal-delay="4"] { transition-delay: 320ms; }
[data-reveal-delay="5"] { transition-delay: 400ms; }
[data-reveal-delay="6"] { transition-delay: 480ms; }

/* --------------------------------------------------------------------------
   2. HERO — gradiente animato lento e forme fluttuanti
   -------------------------------------------------------------------------- */
@keyframes gradient-drift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%      { transform: translate(4%, -6%) scale(1.08); }
  66%      { transform: translate(-5%, 4%) scale(.96); }
}

@keyframes float-soft {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50%      { transform: translateY(-18px) rotate(2deg); }
}

@keyframes fade-up-in {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Ingresso in sequenza degli elementi dell'hero al caricamento */
.js .hero__eyebrow { animation: fade-up-in 700ms var(--t-slow) both; animation-delay: 60ms; }
.hero__title   { animation: fade-up-in 800ms var(--t-slow) both; animation-delay: 160ms; }
.hero__lead    { animation: fade-up-in 800ms var(--t-slow) both; animation-delay: 280ms; }
.js .hero__actions { animation: fade-up-in 800ms var(--t-slow) both; animation-delay: 400ms; }
.hero__trust   { animation: fade-up-in 800ms var(--t-slow) both; animation-delay: 520ms; }

/* --------------------------------------------------------------------------
   3. HEADER — si compatta e prende sfondo allo scroll
   -------------------------------------------------------------------------- */
.site-header {
  transition:
    background-color var(--t-base),
    box-shadow var(--t-base),
    backdrop-filter var(--t-base),
    padding var(--t-base);
}

.site-header.is-stuck {
  background: rgba(255, 255, 255, .88);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  box-shadow: 0 1px 0 var(--linea), var(--sh-sm);
}

.site-header.is-stuck .site-header__inner { --header-h: 68px; }

/* Barra di avanzamento lettura */
.scroll-progress {
  position: fixed; inset: 0 auto auto 0;
  height: 3px; width: 100%;
  transform: scaleX(0); transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--blu-700), var(--blu-500), var(--oro-500));
  z-index: 200;
  transition: transform 80ms linear;
}

/* --------------------------------------------------------------------------
   4. LINK DI NAVIGAZIONE — sottolineatura che cresce dal centro
   -------------------------------------------------------------------------- */
.nav__link {
  position: relative;
  transition: color var(--t-fast);
}

.nav__link::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: -6px;
  height: 2px; border-radius: 2px;
  background: var(--oro-500);
  transform: scaleX(0);
  transition: transform var(--t-base);
}

.nav__link:hover::after,
.nav__link[aria-current="page"]::after { transform: scaleX(1); }

/* --------------------------------------------------------------------------
   5. BOTTONI — sollevamento, alone e freccia che scorre
   -------------------------------------------------------------------------- */
.btn {
  transition:
    transform var(--t-base),
    box-shadow var(--t-base),
    background-color var(--t-base),
    border-color var(--t-base),
    color var(--t-base);
}

.btn:hover  { transform: translateY(-2px); }
.btn:active { transform: translateY(0); transition-duration: 60ms; }

.btn__arrow {
  display: inline-block;
  transition: transform var(--t-bounce);
}
.btn:hover .btn__arrow { transform: translateX(5px); }

/* Riflesso che attraversa il bottone primario */
.btn--primary { position: relative; overflow: hidden; isolation: isolate; }

.btn--primary::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(110deg, transparent 20%, rgba(255,255,255,.42) 50%, transparent 80%);
  transform: translateX(-120%);
  transition: transform 750ms cubic-bezier(.22, 1, .36, 1);
  z-index: -1;
}
.btn--primary:hover::before { transform: translateX(120%); }

/* --------------------------------------------------------------------------
   6. CARD — sollevamento, bordo che si accende, icona che reagisce
   -------------------------------------------------------------------------- */
.card {
  transition:
    transform var(--t-base),
    box-shadow var(--t-base),
    border-color var(--t-base);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--sh-lg);
  border-color: var(--blu-100);
}

.card__icon { transition: transform var(--t-bounce), background-color var(--t-base), color var(--t-base); }
.card:hover .card__icon { transform: scale(1.1) rotate(-6deg); }

.card__arrow { transition: transform var(--t-bounce), opacity var(--t-base); opacity: 0; }
.card:hover .card__arrow { transform: translateX(4px); opacity: 1; }

/* Filo luminoso sul bordo superiore */
.card::after {
  content: "";
  position: absolute; top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blu-700), var(--blu-500), var(--oro-500));
  transform: scaleX(0); transform-origin: 0 50%;
  transition: transform var(--t-slow);
  border-radius: var(--r-lg) var(--r-lg) 0 0;
}
.card:hover::after { transform: scaleX(1); }

/* --------------------------------------------------------------------------
   7. NUMERI — conteggio animato (il valore lo muove main.js)
   -------------------------------------------------------------------------- */
.stat__value {
  font-variant-numeric: tabular-nums;
  transition: color var(--t-base);
}

/* --------------------------------------------------------------------------
   8. FAQ — accordion fluido
   -------------------------------------------------------------------------- */
.faq__body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--t-slow);
}
.faq__body > div { overflow: hidden; }

.faq__item.is-open .faq__body { grid-template-rows: 1fr; }

.faq__icon { transition: transform var(--t-base), color var(--t-base); }
.faq__item.is-open .faq__icon { transform: rotate(45deg); color: var(--oro-500); }

.faq__q { transition: color var(--t-fast), background-color var(--t-fast); }

/* --------------------------------------------------------------------------
   9. LOGHI PARTNER — scorrimento continuo
   -------------------------------------------------------------------------- */
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

.marquee__track {
  display: flex;
  width: max-content;
}

/* L'animazione parte solo quando main.js ha clonato abbastanza voci da
   coprire lo schermo: senza cloni il nastro mostrerebbe un buco a fine giro.
   La durata è proporzionale alla larghezza, così la velocità resta identica
   su qualsiasi monitor e con qualsiasi numero di voci. */
.marquee__track.is-running {
  animation: marquee var(--marquee-durata, 34s) linear infinite;
  will-change: transform;
}

.marquee:hover .marquee__track,
.marquee:focus-within .marquee__track { animation-play-state: paused; }

/* --------------------------------------------------------------------------
   10. MENU MOBILE — pannello che scorre + hamburger che si trasforma
   -------------------------------------------------------------------------- */
.nav-toggle__bar {
  transition: transform var(--t-base), opacity var(--t-fast);
  transform-origin: center;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) { opacity: 0; transform: scaleX(.4); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
  transform: translateX(100%);
  transition: transform var(--t-slow), visibility var(--t-slow);
  visibility: hidden;
}
.mobile-nav.is-open { transform: translateX(0); visibility: visible; }

.mobile-nav__backdrop {
  opacity: 0; visibility: hidden;
  transition: opacity var(--t-base), visibility var(--t-base);
}
.mobile-nav__backdrop.is-open { opacity: 1; visibility: visible; }

/* Voci che entrano in sequenza a menu aperto */
.mobile-nav.is-open .mobile-nav__item {
  animation: fade-up-in 460ms var(--t-slow) both;
}
.mobile-nav.is-open .mobile-nav__item:nth-child(1) { animation-delay: 90ms; }
.mobile-nav.is-open .mobile-nav__item:nth-child(2) { animation-delay: 140ms; }
.mobile-nav.is-open .mobile-nav__item:nth-child(3) { animation-delay: 190ms; }
.mobile-nav.is-open .mobile-nav__item:nth-child(4) { animation-delay: 240ms; }
.mobile-nav.is-open .mobile-nav__item:nth-child(5) { animation-delay: 290ms; }

/* --------------------------------------------------------------------------
   11. FORM — campi che reagiscono al focus
   -------------------------------------------------------------------------- */
.field__input {
  transition: border-color var(--t-base), box-shadow var(--t-base), background-color var(--t-base);
}
.field__input:focus {
  border-color: var(--blu-500);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--blu-500) 14%, transparent);
}

/* --------------------------------------------------------------------------
   12. MENU A TENDINA — apertura morbida
   -------------------------------------------------------------------------- */
.dropdown__panel {
  opacity: 0; visibility: hidden;
  transform: translateY(10px) scale(.98);
  transition: opacity var(--t-base), transform var(--t-base), visibility var(--t-base);
}
.has-dropdown:hover .dropdown__panel,
.has-dropdown:focus-within .dropdown__panel {
  opacity: 1; visibility: visible;
  transform: translateY(0) scale(1);
}

/* --------------------------------------------------------------------------
   13. RISPETTO DELLE PREFERENZE DI ACCESSIBILITÀ
       Chi ha attivato "riduci movimento" vede il sito statico e completo.
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  .js [data-reveal] { opacity: 1 !important; transform: none !important; }
}