/* ═══════════════════════════════════════════════════════════
   ANIMATIONS & REVEAL SYSTEM
   The world breathes. Objects awaken. Nothing is instant.
   ═══════════════════════════════════════════════════════════ */

/* ── KEYFRAMES ── */
@keyframes title-reveal {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes divider-glow {
  0%, 100% { opacity: 0.4; width: 60px; }
  50% { opacity: 1; width: 100px; }
}

@keyframes scroll-pulse {
  0%, 100% { opacity: 0.3; height: 40px; }
  50% { opacity: 0.8; height: 55px; }
}

@keyframes pulse-soft {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.8; }
}

@keyframes breathe {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.02); opacity: 1; }
}

@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 20px var(--realm-glow); }
  50% { box-shadow: 0 0 40px var(--realm-glow-strong); }
}

@keyframes drift {
  0% { transform: translateX(0) translateY(0); }
  25% { transform: translateX(10px) translateY(-5px); }
  50% { transform: translateX(-5px) translateY(-10px); }
  75% { transform: translateX(-10px) translateY(5px); }
  100% { transform: translateX(0) translateY(0); }
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slide-in-left {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

/* ── REVEAL SYSTEM ── */
.reveal-text {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

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

.reveal-up {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 1s var(--ease-out), transform 1s var(--ease-out);
}

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

/* Stagger children */
.reveal-up:nth-child(2) { transition-delay: 0.1s; }
.reveal-up:nth-child(3) { transition-delay: 0.2s; }
.reveal-up:nth-child(4) { transition-delay: 0.3s; }

/* ── BUTTON ANIMATIONS ── */
.btn-portal {
  position: relative;
  overflow: hidden;
}

.btn-portal::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  width: 0; height: 0;
  background: rgba(240, 230, 211, 0.05);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn-portal:active::after {
  width: 300px;
  height: 300px;
}

/* ── PORTAL PULSE ── */
.portal-frame {
  animation: breathe 8s ease-in-out infinite;
}

.portal-drops .portal-frame { animation-delay: 0s; }
.portal-btc .portal-frame { animation-delay: 2s; }
.portal-signals .portal-frame { animation-delay: 4s; }

/* ── LOADING / ENTERING STATE ── */
body.entering .hero-content {
  animation: fade-in 2s var(--ease-out) forwards;
}

body.entering .hero-crown {
  animation: fade-in 1.5s var(--ease-out) forwards, float 6s ease-in-out infinite;
  animation-delay: 0.3s, 1.5s;
  opacity: 0;
}

body.entering .hero-tagline {
  opacity: 0;
  animation: fade-in-up 1s var(--ease-out) 1s forwards;
}

body.entering .hero-sub {
  opacity: 0;
  animation: fade-in-up 1s var(--ease-out) 1.4s forwards;
}

body.entering .hero-divider {
  opacity: 0;
  animation: fade-in 1s var(--ease-out) 1.2s forwards, divider-glow 3s ease-in-out 2s infinite;
}

body.entering .scroll-indicator {
  opacity: 0;
  animation: fade-in 1s var(--ease-out) 2s forwards, float 4s ease-in-out 3s infinite;
}

/* ── IMAGE HOVER EFFECTS ── */
.gallery-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, 
    rgba(180, 140, 232, 0) 0%, 
    rgba(180, 140, 232, 0.05) 50%, 
    rgba(180, 140, 232, 0) 100%
  );
  opacity: 0;
  transition: opacity 0.6s;
}

.gallery-item:hover::after {
  opacity: 1;
}

/* ── SIGNAL CARD TYPING EFFECT ── */
.signal-card .signal-excerpt {
  transition: color 0.5s;
}

.signal-card:hover .signal-excerpt {
  color: var(--cream-soft);
}

/* ── NAV SCROLL EFFECTS ── */
#main-nav.scrolled {
  background: rgba(5, 2, 8, 0.98);
  backdrop-filter: blur(20px);
}

/* ── TIER CARD HOVER GLOW ── */
.tier-card::before {
  content: '';
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: conic-gradient(
    from 0deg,
    transparent,
    rgba(180, 140, 232, 0.03),
    transparent,
    rgba(180, 140, 232, 0.03),
    transparent
  );
  animation: drift 20s linear infinite;
  opacity: 0;
  transition: opacity 0.5s;
}

.tier-card:hover::before {
  opacity: 1;
}

.tier-card-elite::before {
  background: conic-gradient(
    from 0deg,
    transparent,
    rgba(201, 168, 76, 0.04),
    transparent,
    rgba(201, 168, 76, 0.04),
    transparent
  );
}

/* ── MOBILE ANIMATION REDUCTION ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .reveal-text, .reveal-up {
    opacity: 1;
    transform: none;
  }
}