/* ═══════════════════════════════════════════════════════════
   GEOSTORIE INCLUSIVE — animations.css
   Scroll reveals, typewriter, parallax
═══════════════════════════════════════════════════════════ */

/* ─── REVEAL ON SCROLL ──────────────────────────────────── */
.reveal-up {
  opacity: 0;
  transform: translateY(32px);
  transition:
    opacity 0.8s var(--ease-out),
    transform 0.8s var(--ease-out);
  transition-delay: var(--delay, 0s);
}

.reveal-up.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ─── TYPEWRITER ────────────────────────────────────────── */
.hook-line {
  overflow: hidden;
}

/* Cursore che lampeggia sull'ultima riga attiva */
.hook-cursor {
  display: inline-block;
  width: 2px;
  height: 0.85em;
  background: var(--sand);
  vertical-align: middle;
  margin-left: 4px;
  animation: cursorBlink 0.8s step-end infinite;
}

@keyframes cursorBlink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

/* ─── LINEART SOGLIA: lento zoom sullo sfondo ───────────── */
@keyframes sogliaZoom {
  from { transform: scale(1); }
  to   { transform: scale(1.08); }
}

.soglia-lineart {
  animation: sogliaZoom 30s linear forwards;
}

/* ─── TERRITORY CARDS: staggered reveal ────────────────── */
.territory-card {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

.territory-card.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delay per ciascuna card */
.territory-card:nth-child(1) { transition-delay: 0.05s; }
.territory-card:nth-child(2) { transition-delay: 0.2s;  }
.territory-card:nth-child(3) { transition-delay: 0.35s; }

/* ─── CARD STORIA: emerge sopra il DATO al hover ──────── */
.card-storia {
  transition: background 0.4s var(--ease-out);
}

.territory-card:hover .card-storia {
  background: var(--moss-lt);
}

/* ─── FASI: connettore che appare ─────────────────────── */
.fase-connector {
  display: none; /* gestito via JS/CSS nei breakpoint */
}

/* ─── CASE STUDY: immagini parallax leggero ────────────── */
.output-visual img,
.case-image img {
  will-change: transform;
}

/* ─── FORM: focus effect ────────────────────────────────── */
.form-field input,
.form-field textarea {
  will-change: border-color, background;
}

.form-field.has-error input,
.form-field.has-error textarea {
  border-color: var(--terracotta) !important;
}

.field-error {
  font-size: 0.75rem;
  color: var(--terracotta-lt);
  margin-top: 0.25rem;
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity 0.2s, transform 0.2s;
}

.form-field.has-error .field-error {
  opacity: 1;
  transform: translateY(0);
}

/* ─── PERSONE: hover su persona ─────────────────────────── */
.persona-photo--placeholder {
  transition: background 0.35s;
}

.persona:hover .persona-photo--placeholder {
  background: var(--earth-warm);
}

/* ─── AUDIO TOGGLE: pulse quando attivo ─────────────────── */
@keyframes audioPulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.5; }
}

.audio-toggle.active {
  color: var(--sand-lt);
  animation: audioPulse 2.5s ease-in-out infinite;
}

/* ─── SCROLL INDICATOR ──────────────────────────────────── */
@keyframes scrollDown {
  0%   { transform: translateY(0) scaleY(0); transform-origin: top; opacity: 0; }
  40%  { transform: translateY(0) scaleY(1); transform-origin: top; opacity: 1; }
  100% { transform: translateY(48px) scaleY(0); transform-origin: bottom; opacity: 0; }
}

.scroll-line {
  animation: scrollDown 2.2s ease-in-out infinite;
}

/* ─── NAV: link underline reveal ───────────────────────── */
.nav-links a:not(.nav-cta) {
  position: relative;
}

.nav-links a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--cream);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s var(--ease-out);
}

.nav-links a:not(.nav-cta):hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* ─── SEZIONI: transizione colore di fondo ──────────────── */
/* Effetto: lo sfondo si rivela quando entri nella sezione  */
.act {
  position: relative;
}

/* ─── METODO FASI: connettore orizzontale animato ───────── */
.metodo-fasi::before {
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 1.2s var(--ease-out) 0.3s;
}

.metodo-fasi.revealed::before {
  transform: scaleX(1);
}

/* ─── OUTPUT ITEMS: slide-in alternato ─────────────────── */
.output-item:nth-child(odd) .output-visual {
  opacity: 0;
  transform: translateX(-32px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.output-item:nth-child(even) .output-visual {
  opacity: 0;
  transform: translateX(32px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.output-item.revealed .output-visual {
  opacity: 1;
  transform: translateX(0);
}

.output-item .output-info {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s var(--ease-out) 0.2s, transform 0.8s var(--ease-out) 0.2s;
}

.output-item.revealed .output-info {
  opacity: 1;
  transform: translateY(0);
}

/* ─── SOGLIA: cursore hook ──────────────────────────────── */
/* Il cursore del typewriter è scuro su sfondo crema */
.hook-cursor {
  background: var(--text-dark);
}

/* ─── SCROLL LINE: scuro su sfondo crema SOGLIA ─────────── */
/* Ridefinita in responsive per il contesto scuro degli altri atti */

/* ─── GAP STATEMENT: reveal sequenziale ─────────────────── */
.gap-term {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 1.2s var(--ease-out),
              transform 1.2s var(--ease-out);
}
.gap-term.revealed { opacity: 1; transform: translateY(0); }

.gap-definition {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 1s var(--ease-out) 0.45s,
              transform 1s var(--ease-out) 0.45s;
}
.gap-definition.revealed { opacity: 1; transform: translateY(0); }

.gap-us {
  opacity: 0;
  transition: opacity 0.8s var(--ease-out) 0.9s;
}
.gap-us.revealed { opacity: 1; }