/* ==========================================================================
   Assinvest — layout.css
   Header, hero, sezioni, griglie, footer, responsive.
   ========================================================================== */

/* --- SEZIONI --- */
.section { padding-block: var(--sp-9); }
.section--tight { padding-block: var(--sp-8); }
.section--alt { background: var(--bg-alt); }

.section--dark {
  background: linear-gradient(160deg, var(--blu-900), var(--blu-700) 60%, #24256e);
  color: rgba(255,255,255,.86);
  position: relative; overflow: hidden;
}
.section--dark h2, .section--dark h3, .section--dark h4 { color: #fff; }
.section--dark p { color: rgba(255,255,255,.78); }

/* --- HEADER --- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  background: transparent;
}
.site-header__inner {
  display: flex; align-items: center; gap: var(--sp-5);
  height: var(--header-h);
  transition: height var(--t-base);
}

.logo { flex: 0 0 auto; display: block; position: relative; }
.logo img { height: 34px; width: auto; transition: height var(--t-base), opacity var(--t-base); }
.site-header.is-stuck .logo img { height: 30px; }

/* Il logo bianco sta sopra l'hero scuro, quello a colori sull'header bianco */
.logo__dark { position: absolute; inset: 0; opacity: 0; }
.site-header.is-stuck .logo__light { opacity: 0; }
.site-header.is-stuck .logo__dark  { opacity: 1; }

.nav { display: flex; align-items: center; gap: var(--sp-6); margin-left: auto; }

.nav__link {
  font-family: var(--font-title); font-size: var(--fs-sm); font-weight: 650;
  color: #fff; text-decoration: none;
  padding-block: var(--sp-2);
  transition: color var(--t-base);
}
.nav__link:hover { color: var(--oro-500); }

/* Header compattato su sfondo bianco: si torna al blu */
.site-header.is-stuck .nav__link { color: var(--blu-900); }
.site-header.is-stuck .nav__link:hover { color: var(--blu-700); }

/* Menu a tendina */
.has-dropdown { position: relative; }
.dropdown__panel {
  position: absolute; top: calc(100% + 14px); left: 50%;
  translate: -50% 0;
  min-width: 268px; padding: var(--sp-3);
  background: #fff; border: 1px solid var(--linea);
  border-radius: var(--r-md); box-shadow: var(--sh-lg);
}
.dropdown__link {
  display: block; padding: var(--sp-3) var(--sp-4);
  border-radius: var(--r-sm);
  font-size: var(--fs-sm); font-weight: 600;
  color: var(--blu-900); text-decoration: none;
  transition: background-color var(--t-fast), color var(--t-fast), padding-left var(--t-base);
}
.dropdown__link:hover { background: var(--blu-50); color: var(--blu-700); padding-left: var(--sp-5); }

.header__actions { display: flex; align-items: center; gap: var(--sp-4); flex: 0 0 auto; }

.header__tel {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  font-family: var(--font-title); font-size: var(--fs-sm); font-weight: 700;
  color: #fff; text-decoration: none;
  transition: color var(--t-base);
}
.header__tel:hover { color: var(--oro-500); }
.site-header.is-stuck .header__tel { color: var(--blu-900); }
.site-header.is-stuck .header__tel:hover { color: var(--oro-600); }
.header__tel svg { width: 18px; height: 18px; color: var(--oro-500); }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column; justify-content: center; gap: 5px;
  width: 46px; height: 46px; padding: var(--sp-3);
  border-radius: var(--r-sm);
}
.nav-toggle__bar {
  display: block; height: 2px; width: 100%; border-radius: 2px;
  background: #fff;
  transition: background-color var(--t-base);
}
.site-header.is-stuck .nav-toggle__bar { background: var(--blu-900); }
/* A menu mobile aperto il pannello è bianco: le barre tornano scure */
.nav-toggle[aria-expanded="true"] .nav-toggle__bar { background: var(--blu-900); }

/* Menu mobile */
.mobile-nav {
  position: fixed; inset: 0 0 0 auto; z-index: 150;
  width: min(380px, 88vw);
  padding: calc(var(--header-h) + var(--sp-5)) var(--sp-5) var(--sp-6);
  background: #fff;
  box-shadow: -8px 0 40px rgba(20,21,46,.16);
  overflow-y: auto;
}
.mobile-nav__backdrop {
  position: fixed; inset: 0; z-index: 140;
  background: rgba(20,21,46,.45);
  backdrop-filter: blur(3px);
}
.mobile-nav__item { display: block; border-bottom: 1px solid var(--linea); }
.mobile-nav__item a {
  display: block; padding: var(--sp-4) 0;
  font-family: var(--font-title); font-size: var(--fs-lg); font-weight: 700;
  color: var(--blu-900); text-decoration: none;
}
.mobile-nav__item a:hover { color: var(--blu-500); }
.mobile-nav__sub a { font-size: var(--fs-sm); font-weight: 600; color: var(--muted); padding: var(--sp-2) 0; }
.mobile-nav__cta { margin-top: var(--sp-6); display: grid; gap: var(--sp-3); }

/* --- HERO --- */
.hero {
  position: relative;
  padding-top: calc(var(--header-h) + var(--sp-9));
  padding-bottom: var(--sp-9);
  background: linear-gradient(165deg, var(--blu-900) 0%, var(--blu-700) 52%, #26277a 100%);
  color: #fff;
  overflow: hidden;
  isolation: isolate;
}

/* Bagliori animati di sfondo */
.hero__glow {
  position: absolute; z-index: -1;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
}
.hero__glow--1 {
  width: 620px; height: 620px; top: -220px; right: -140px;
  background: radial-gradient(circle, rgba(29,113,184,.62), transparent 70%);
  animation: gradient-drift 22s ease-in-out infinite;
}
.hero__glow--2 {
  width: 480px; height: 480px; bottom: -200px; left: -120px;
  background: radial-gradient(circle, rgba(245,166,35,.30), transparent 70%);
  animation: gradient-drift 28s ease-in-out infinite reverse;
}

/* Trama a griglia */
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 100%);
}

.hero__inner { max-width: 820px; }
.hero__eyebrow { color: var(--oro-500); }
.hero__title { color: #fff; margin-bottom: var(--sp-5); }
.hero__title em { font-style: normal; color: var(--oro-500); }
.hero__lead {
  font-size: var(--fs-xl); line-height: 1.55;
  color: rgba(255,255,255,.85);
  max-width: 62ch;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--sp-4); margin-top: var(--sp-7); }
.hero__trust {
  display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-3) var(--sp-5);
  margin-top: var(--sp-7); padding-top: var(--sp-6);
  border-top: 1px solid rgba(255,255,255,.18);
  font-size: var(--fs-sm); color: rgba(255,255,255,.88);
}
.hero__trust span { display: inline-flex; align-items: center; gap: var(--sp-2); }
.hero__trust span::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--oro-500); }

/* --- GRIGLIE --- */
.grid { display: grid; gap: var(--sp-5); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-8);
  align-items: center;
}

/* --- Marquee loghi/convenzioni --- */
.marquee { overflow: hidden; mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.marquee__item { flex: 0 0 auto; padding-inline: var(--sp-3); }

/* --- Blocco CTA finale --- */
.cta-band {
  position: relative;
  padding: var(--sp-8);
  border-radius: var(--r-lg);
  background: linear-gradient(140deg, var(--blu-900), var(--blu-700) 58%, var(--blu-500));
  color: #fff;
  overflow: hidden;
}
.cta-band h2 { color: #fff; }
.cta-band p { color: rgba(255,255,255,.82); margin-top: var(--sp-4); max-width: 54ch; }
.cta-band__actions { display: flex; flex-wrap: wrap; gap: var(--sp-4); margin-top: var(--sp-6); }
.cta-band::after {
  content: ""; position: absolute; right: -80px; bottom: -120px;
  width: 340px; height: 340px; border-radius: 50%;
  background: radial-gradient(circle, rgba(245,166,35,.28), transparent 68%);
  animation: float-soft 9s ease-in-out infinite;
}

/* --- Box form --- */
.form-card {
  padding: var(--sp-7);
  background: #fff;
  border: 1px solid var(--linea);
  border-radius: var(--r-lg);
  box-shadow: var(--sh-md);
}

/* --- FOOTER --- */
.site-footer {
  background: var(--blu-900);
  color: rgba(255,255,255,.7);
  padding-top: var(--sp-9);
  font-size: var(--fs-sm);
}
.site-footer h4 {
  color: #fff; font-size: var(--fs-sm);
  letter-spacing: .06em; text-transform: uppercase;
  margin-bottom: var(--sp-5);
}
.site-footer a { color: rgba(255,255,255,.7); text-decoration: none; transition: color var(--t-fast), padding-left var(--t-base); }
.site-footer a:hover { color: var(--oro-500); }

.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: var(--sp-7);
  padding-bottom: var(--sp-8);
}
.footer__logo { height: 36px; width: auto; margin-bottom: var(--sp-5); }
.footer__list { list-style: none; padding: 0; display: grid; gap: var(--sp-3); }
.footer__list li { margin: 0; }
.footer__list a:hover { padding-left: var(--sp-2); }

.footer__legal {
  padding-block: var(--sp-6);
  border-top: 1px solid rgba(255,255,255,.12);
  font-size: var(--fs-xs);
  color: rgba(255,255,255,.55);
  line-height: 1.7;
}
.footer__legal strong { color: rgba(255,255,255,.8); }
.footer__legal-links { display: flex; flex-wrap: wrap; gap: var(--sp-4); margin-top: var(--sp-3); }

/* --- RESPONSIVE --- */
@media (max-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: repeat(2, 1fr); gap: var(--sp-6); }
}

@media (max-width: 900px) {
  :root { --header-h: 72px; }
  /* La barra azioni copre il fondo: il contenuto non deve finirci sotto */
  body { padding-bottom: 76px; }
  .action-bar { display: flex; }
  .to-top { bottom: calc(76px + var(--sp-4)); right: var(--sp-4); width: 44px; height: 44px; }
  .nav { display: none; }
  .header__tel span { display: none; }
  .nav-toggle { display: flex; margin-left: auto; }
  .header__actions .btn { display: none; }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; gap: var(--sp-7); }
  .section { padding-block: var(--sp-8); }
}

@media (max-width: 640px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .hero { padding-top: calc(var(--header-h) + var(--sp-7)); padding-bottom: var(--sp-8); }
  .hero__actions .btn { width: 100%; }
  .cta-band { padding: var(--sp-6) var(--sp-5); }
  .form-card { padding: var(--sp-5); }
  .wrap { padding-inline: var(--sp-4); }
}

/* Firma dell'agenzia: spinta a destra sul desktop, in coda alle voci legali */
.footer__firma { margin-left: auto; }
.footer__firma a {
  color: rgba(255, 255, 255, .78);
  font-weight: 650;
  text-decoration: none;
}
.footer__firma a:hover { color: var(--oro-500); }

@media (max-width: 640px) {
  .footer__firma { margin-left: 0; width: 100%; margin-top: var(--sp-2); }
}