/* —— Intro splash (logo a layer + scroll down) —— */
.intro {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: calc(100dvh - var(--header-h));
  padding: var(--space-lg) clamp(1.25rem, 4vw, 2.5rem);
  text-align: center;
}

.intro__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(2rem, 6vh, 3.5rem);
  width: 100%;
  max-width: min(52rem, 94vw);
}

.logo-intro {
  width: 100%;
  margin: 0;
}

.logo-intro__fallback {
  margin: 0;
  font-size: var(--text-lg);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--track-caps);
  text-transform: uppercase;
  color: var(--ink-muted);
}

.logo-intro__svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

/* Colori originali dal file Illustrator */
.logo-intro__svg .logo-intro__gray {
  fill: var(--logo-gray);
}

.logo-intro__svg .logo-intro__accent {
  fill: var(--accent);
}

.logo-intro__layer {
  opacity: 0;
  transform: translateY(10px);
}

.logo-intro__layer--in {
  will-change: opacity, transform;
  animation: logo-layer-in var(--logo-fade-duration) var(--logo-fade-ease) forwards;
}

.logo-intro__layer--done {
  opacity: 1;
  transform: none;
  will-change: auto;
}

.logo-intro__layer--accent.logo-intro__layer--in {
  animation: logo-accent-in 1s var(--logo-fade-ease) forwards;
}

.intro__scroll {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.65rem;
  padding: 0.5rem 0.75rem;
  font-size: var(--text-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--track-caps);
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink-muted);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: color 0.25s var(--ease);
}

.intro__scroll:hover {
  color: var(--accent);
  opacity: 1;
}

.intro__scroll:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.intro__scroll-icon {
  display: block;
  width: 1px;
  height: 2.75rem;
  background: var(--palette-gray-light);
  position: relative;
  animation: intro-scroll-line 1.8s var(--ease) infinite;
}

.intro__scroll-icon::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 0.45rem;
  height: 0.45rem;
  border-right: 1px solid var(--palette-gray-dark);
  border-bottom: 1px solid var(--palette-gray-dark);
  transform: translateX(-50%) rotate(45deg);
}

@keyframes logo-layer-in {
  0% {
    opacity: 0;
    transform: translateY(10px);
  }
  55% {
    opacity: 0.72;
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes logo-accent-in {
  0% {
    opacity: 0;
    transform: scaleX(0.12);
    transform-origin: 52% 78%;
  }
  40% {
    opacity: 0.5;
  }
  100% {
    opacity: 1;
    transform: scaleX(1);
    transform-origin: 52% 78%;
  }
}

@keyframes intro-scroll-line {
  0%,
  100% {
    transform: scaleY(1);
    opacity: 0.55;
  }
  50% {
    transform: scaleY(0.72);
    opacity: 1;
  }
}

@media (max-width: 767px) {
  .intro {
    min-height: calc(100dvh - 3.75rem);
    padding-block: 2.5rem 2rem;
  }

  .intro__inner {
    gap: 2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .logo-intro__layer,
  .logo-intro__layer--accent,
  .logo-intro__layer--done {
    opacity: 1;
    transform: none;
    animation: none;
    will-change: auto;
  }

  .intro__scroll-icon {
    animation: none;
  }
}