/* ============================================================
   HERO — scroll-driven frame animation
   Namespace: .sec-hero
   ============================================================ */

/* ---- Hero section ---- */
.sec-hero {
  position: relative;
  /* 350vh: animazione sui primi 50%, poi sosta sull'ultimo frame */
  height: 350vh;
}

/* ---- Sticky viewport ---- */
.sec-hero__sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: hidden;
}

/* Gradiente di uscita: vignette sottile in basso per transizione morbida */
.sec-hero__sticky::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 140px;
  background: linear-gradient(to bottom, transparent 0%, rgba(255, 255, 255, 0.08) 100%);
  pointer-events: none;
  z-index: 3;
}

/* ---- Canvas (frame animation background) ---- */
.sec-hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

/* ---- Overlay: vignette radiale fissa + scurimento progressivo guidato da JS ---- */
.sec-hero__overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(0, 0, 0, var(--hero-dark, 0)), rgba(0, 0, 0, var(--hero-dark, 0))),
    radial-gradient(ellipse at center, transparent 20%, rgba(0, 0, 0, 0.09) 100%);
}

/* ---- Content layer: separa testo (alto) e card (basso) ---- */
.sec-hero__content {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding-top: 90px;
  padding-bottom: var(--sp-8);
  padding-inline: var(--container-pad);
}

@media (min-width: 1024px) {
  .sec-hero__content {
    padding-inline: calc((100% - var(--container-max)) / 2 + var(--container-pad));
  }
}

/* ---- Hero text: flex item nella metà superiore ---- */
.sec-hero__text {
  align-self: center;
  width: 100%;
  max-width: 1200px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-5);
  text-align: center;
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.85s ease, transform 0.85s ease;
  z-index: 2;
  will-change: opacity, transform;
  pointer-events: none;
}

.sec-hero__text.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.sec-hero__label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .75);
}

.sec-hero__headline {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 7rem);
  font-weight: 700;
  color: var(--c-white);
  line-height: 1.08;
}

.sec-hero__subtitle {
  font-size: clamp(1.05rem, 2vw, 1.75rem);
  color: rgba(255, 255, 255, .88);
  max-width: 56ch;
  line-height: 1.65;
}

.sec-hero__ctas {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sp-3);
  margin-top: var(--sp-2);
}

.sec-hero__trust {
  font-size: 0.8rem;
  font-family: var(--font-body);
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, .55);
  text-transform: uppercase;
  margin-top: var(--sp-4);
}

/* ---- Service cards grid ---- */
.sec-hero__cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-3);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.85s ease 0.18s, transform 0.85s ease 0.18s;
  position: relative;
  z-index: 1;
  flex-shrink: 0;
}

.sec-hero__cards.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 767px) {
  .sec-hero__cards {
    display: none;
  }
}

@media (min-width: 1024px) {
  .sec-hero__cards {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--sp-3);
  }
}

/* ---- Single hero card ---- */
.sec-hero__card {
  position: relative;
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: var(--r-lg);
  padding: var(--sp-4);
  cursor: pointer;
  transition: background var(--t-base), border-color var(--t-base), transform var(--t-base), box-shadow var(--t-base);
  overflow: hidden;
}

.sec-hero__card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--card-color, var(--c-blue));
  border-radius: var(--r-lg) var(--r-lg) 0 0;
}

.sec-hero__card:hover,
.sec-hero__card.is-expanded {
  background: rgba(255, 255, 255, .18);
  border-color: rgba(255, 255, 255, .35);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, .25);
}

/* ---- Card face (always visible) ---- */
.sec-hero__card-face {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

.sec-hero__card-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: var(--r-md);
  background: var(--card-color, var(--c-blue));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-white);
}

.sec-hero__card-icon svg {
  width: 22px;
  height: 22px;
}

.sec-hero__card-title {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--c-white);
  line-height: 1.3;
}

/* ---- Card back (revealed on hover/expand) ---- */
.sec-hero__card-back {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--t-slow), opacity var(--t-slow), padding var(--t-base);
  opacity: 0;
  padding-top: 0;
}

.sec-hero__card:hover .sec-hero__card-back,
.sec-hero__card.is-expanded .sec-hero__card-back {
  max-height: 120px;
  opacity: 1;
  padding-top: var(--sp-3);
}

.sec-hero__card-desc {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, .8);
  line-height: 1.5;
  margin-bottom: var(--sp-2);
}

.sec-hero__card-cta {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--card-color, var(--c-blue));
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  transition: gap var(--t-fast);
}

.sec-hero__card-cta:hover {
  gap: var(--sp-2);
}


/* ---- Hero intro logo (primi frame) ---- */
.sec-hero__intro {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  transform-origin: center center;
  will-change: opacity, transform;
  /* opacity + scale controllati da JS in base al frame */
}

.sec-hero__intro-img {
  width: min(52vh, 82vw);
  height: auto;
  aspect-ratio: 1 / 1;
  filter: brightness(0) invert(1) drop-shadow(0 4px 60px rgba(0, 0, 0, 0.40));
}

.sec-hero__intro-hint {
  position: absolute;
  bottom: var(--sp-10);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-2);
  color: var(--c-white);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.5);
  white-space: nowrap;
}

.sec-hero__intro-arrow {
  width: 26px;
  height: 26px;
  animation: bounce-down 1.8s ease-in-out infinite;
  filter: drop-shadow(0 1px 4px rgba(0, 0, 0, 0.4));
}

@media (prefers-reduced-motion: reduce) {
  .sec-hero__intro-arrow {
    animation: none;
  }
}