/* Animaciones — Excavaciones BCN */

/* ── Reveal on scroll ── */
.reveal {
  opacity: 1;
  transform: none;
}
.reveal[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity var(--transition-slow),
    transform var(--transition-slow);
}
.reveal[data-reveal="left"]  { transform: translateX(-40px); }
.reveal[data-reveal="right"] { transform: translateX(40px); }
.reveal[data-reveal="scale"] { transform: scale(0.92); }

.reveal.visible {
  opacity: 1;
  transform: none;
}

/* Stagger delay para items en grid */
.stagger-item { transition-delay: calc(var(--stagger-i, 0) * 80ms); }

/* ── Loader de entrada ── */
#loader {
  position: fixed;
  inset: 0;
  background: var(--color-background);
  z-index: calc(var(--z-cursor) + 1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--space-6);
  transition: opacity 500ms var(--ease-out-expo), transform 500ms var(--ease-out-expo);
  /* Fallback CSS: auto-ocultar si JS no inicializa (file://) */
  animation: loader-css-exit 500ms ease 2200ms forwards;
}
#loader.loaded {
  opacity: 0;
  pointer-events: none;
}
.loader-wordmark {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: var(--weight-extrabold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text);
  overflow: hidden;
}
.loader-wordmark span {
  display: inline-block;
  transform: translateY(100%);
  animation: loader-rise 600ms var(--ease-out-expo) forwards;
}
.loader-wordmark span:nth-child(2) { animation-delay: 80ms; color: var(--color-primary); }
.loader-bar-wrapper {
  width: 200px;
  height: 2px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  overflow: hidden;
}
.loader-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: var(--radius-full);
  transition: width 1.2s var(--ease-out-expo);
  /* Fallback CSS: anima la barra si JS no puede inicializar (file://) */
  animation: loader-bar-fill 1.2s var(--ease-out-expo) 400ms forwards;
}
.loader-bar.loading {
  width: 100%;
  animation: none; /* JS ya gestiona la barra via transition */
}

@keyframes loader-rise {
  to { transform: translateY(0); }
}

@keyframes loader-bar-fill {
  to { width: 100%; }
}

@keyframes loader-css-exit {
  to { opacity: 0; pointer-events: none; visibility: hidden; }
}

/* ── Cursor personalizado ── */
body.custom-cursor,
body.custom-cursor * { cursor: none !important; }

#cursor {
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: var(--z-cursor);
  mix-blend-mode: normal;
}
.cursor-dot {
  position: absolute;
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: var(--radius-full);
  transform: translate(-50%, -50%);
  transition: transform 80ms, width 150ms, height 150ms, background 150ms;
}
.cursor-ring {
  position: absolute;
  width: 40px;
  height: 40px;
  border: 1.5px solid rgba(212, 117, 10, 0.5);
  border-radius: var(--radius-full);
  transform: translate(-50%, -50%);
  transition: transform 200ms var(--ease-out-expo), width 200ms, height 200ms, border-color 200ms, background 200ms;
}
body.cursor-hover .cursor-dot  { transform: translate(-50%, -50%) scale(0); }
body.cursor-hover .cursor-ring {
  width: 60px;
  height: 60px;
  border-color: var(--color-primary);
  background: rgba(212, 117, 10, 0.08);
}
body.cursor-active .cursor-dot  { transform: translate(-50%, -50%) scale(1.5); }
body.cursor-active .cursor-ring { width: 32px; height: 32px; }

@media (hover: none) { #cursor { display: none; } }

/* ── Page transition ── */
.page-transition-overlay {
  position: fixed;
  inset: 0;
  background: var(--color-background);
  z-index: calc(var(--z-cursor) - 1);
  transform: translateY(100%);
  transition: transform 400ms var(--ease-out-expo);
}
.page-transition-overlay.entering { transform: translateY(0); }
.page-transition-overlay.leaving  { transform: translateY(-100%); }

/* ── Glow pulse en hover ── */
@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 20px rgba(212, 117, 10, 0.2); }
  50%       { box-shadow: 0 0 40px rgba(212, 117, 10, 0.4); }
}
.glow-pulse { animation: glow-pulse 3s ease-in-out infinite; }

/* ── Spinning accent ── */
@keyframes spin-slow {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}
.spin-slow { animation: spin-slow 20s linear infinite; }

/* ── Float suave ── */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-12px); }
}
.float { animation: float 4s ease-in-out infinite; }

/* ── Fade in ── */
@keyframes fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}
.fade-in { animation: fade-in 600ms var(--ease-out-expo) forwards; }

/* ── Slide up ── */
@keyframes slide-up {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.slide-up { animation: slide-up 600ms var(--ease-out-expo) forwards; }

/* ── Contadores ── */
.counter-number { font-variant-numeric: tabular-nums; }