/* ==========================================================================
   ANIMATIONS.CSS: MAMLUK GATE OPENINGS & SCROLL REVEALS
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CINEMATIC GATE & SPLASH SCREEN ANIMATIONS
   -------------------------------------------------------------------------- */

/* Double Gate archway swing open */
#splash-screen.gate-open .gate-wing.left {
  transform: translateX(-100%) rotateY(-70deg);
  opacity: 0;
}

#splash-screen.gate-open .gate-wing.right {
  transform: translateX(100%) rotateY(70deg);
  opacity: 0;
}

/* 5s Loading draw logo keyframes (scoped to splash — unchanged in light theme) */
#splash-screen .splash-logo-svg path,
#splash-screen .splash-logo-svg polygon {
  stroke-dasharray: 600;
  stroke-dashoffset: 600;
  animation: splashDrawLogo 3.5s ease-in-out forwards;
}

@keyframes splashDrawLogo {
  0% {
    stroke-dashoffset: 600;
    filter: drop-shadow(0 0 2px rgba(197, 160, 89, 0.1));
  }
  70% {
    stroke-dashoffset: 0;
    filter: drop-shadow(0 0 15px rgba(197, 160, 89, 0.6));
  }
  100% {
    stroke-dashoffset: 0;
    filter: drop-shadow(0 0 8px rgba(197, 160, 89, 0.4));
    fill: rgba(197, 160, 89, 0.1);
  }
}

/* --------------------------------------------------------------------------
   2. HEAVY MANUSCRIPT PAGE-TURN SWEEP
   -------------------------------------------------------------------------- */
.page-turn-active {
  animation: pageTurnSweep 0.9s cubic-bezier(0.645, 0.045, 0.355, 1) forwards;
}

@keyframes pageTurnSweep {
  0% {
    transform: skewX(-12deg) translateX(110%);
  }
  45% {
    transform: skewX(-12deg) translateX(-10%);
  }
  55% {
    transform: skewX(-12deg) translateX(-10%);
  }
  100% {
    transform: skewX(-12deg) translateX(-130%);
  }
}

@media (max-width: 768px) {
  .page-turn-active {
    animation: pageTurnSweepMobile 0.9s cubic-bezier(0.645, 0.045, 0.355, 1) forwards;
  }
}

@keyframes pageTurnSweepMobile {
  0% {
    transform: skewX(-4deg) translateX(130%);
  }
  45% {
    transform: skewX(-4deg) translateX(-15%);
  }
  55% {
    transform: skewX(-4deg) translateX(-15%);
  }
  100% {
    transform: skewX(-4deg) translateX(-160%);
  }
}

/* --------------------------------------------------------------------------
   3. INK-BLEED BLUR & REVEALS
   -------------------------------------------------------------------------- */
.reveal-fade-up {
  opacity: 0;
  transform: translateY(30px);
  filter: blur(5px);
  transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1), 
              transform 0.8s cubic-bezier(0.25, 1, 0.5, 1),
              filter 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}

.reveal-fade-up.visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

.reveal-fade-in {
  opacity: 0;
  filter: blur(4px);
  transition: opacity 1s ease, filter 1s ease;
}

.reveal-fade-in.visible {
  opacity: 1;
  filter: blur(0);
}

.reveal-slide-left {
  opacity: 0;
  transform: translateX(-40px);
  filter: blur(2px);
  transition: opacity 0.8s ease, transform 0.8s ease, filter 0.8s ease;
}

.reveal-slide-left.visible {
  opacity: 1;
  transform: translateX(0);
  filter: blur(0);
}

.reveal-slide-right {
  opacity: 0;
  transform: translateX(40px);
  filter: blur(2px);
  transition: opacity 0.8s ease, transform 0.8s ease, filter 0.8s ease;
}

.reveal-slide-right.visible {
  opacity: 1;
  transform: translateX(0);
  filter: blur(0);
}

/* Staggered Delay Helpers */
.delay-100 { transition-delay: 0.1s; }
.delay-200 { transition-delay: 0.2s; }
.delay-300 { transition-delay: 0.3s; }
.delay-400 { transition-delay: 0.4s; }
.delay-500 { transition-delay: 0.5s; }
.delay-600 { transition-delay: 0.6s; }

/* --------------------------------------------------------------------------
   4. AMBIENT GLOWS & LANTERN BREATHING
   -------------------------------------------------------------------------- */
.lantern-flame {
  animation: lanternBreath 3s infinite alternate ease-in-out;
}

@keyframes lanternBreath {
  0% {
    transform: rotate(-45deg) scale(0.9);
    filter: drop-shadow(0 0 4px #FF8C00) brightness(0.9);
  }
  50% {
    transform: rotate(-43deg) scale(1.1);
    filter: drop-shadow(0 0 12px #FFD700) brightness(1.1);
  }
  100% {
    transform: rotate(-47deg) scale(0.95);
    filter: drop-shadow(0 0 6px #FFA500) brightness(0.95);
  }
}

/* Timeline Badge shield entrance rotation */
.timeline-item.visible .timeline-badge {
  animation: badgeEntrance 0.7s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

@keyframes badgeEntrance {
  0% {
    transform: scale(0) rotate(-180deg);
  }
  100% {
    transform: scale(1) rotate(0deg);
  }
}

/* Compass Astrolabe rotating background decals */
.astrolabe-spin {
  animation: slowAstrolabeSpin 40s linear infinite;
}

@keyframes slowAstrolabeSpin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}