/* ==========================================================================
   RESOLVIA — ANIMATIONS & MOTION SYSTEM
   Keyframe Animations, Glows, Floating UI & Intersection Observers
   ========================================================================== */

/* Keyframes */
@keyframes floatSlow {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes pulseGlow {
  0%, 100% {
    opacity: 0.4;
    filter: drop-shadow(0 0 15px rgba(59, 130, 246, 0.3));
  }
  50% {
    opacity: 0.8;
    filter: drop-shadow(0 0 25px rgba(59, 130, 246, 0.6));
  }
}

@keyframes dashFlow {
  to {
    stroke-dashoffset: -40;
  }
}

@keyframes rotateBorder {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* Periodic 8s Gradient Shine Sweep */
@keyframes gradientShine {
  0% {
    background-position: -200% 0;
  }
  15%, 100% {
    background-position: 200% 0;
  }
}

/* Character & Illustration Idle Breathing */
@keyframes idleBreathe {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-4px);
  }
}

/* Infinite Marquee Motion */
@keyframes marqueeScroll {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* Animation Classes */
.animate-float {
  animation: floatSlow 6s ease-in-out infinite;
}

.animate-pulse-glow {
  animation: pulseGlow 4s ease-in-out infinite;
}

.animated-dash-line {
  stroke-dasharray: 8 8;
  animation: dashFlow 2s linear infinite;
}

.highlight-blue {
  background: linear-gradient(90deg, #60a5fa 0%, #3b82f6 40%, #ffffff 50%, #3b82f6 60%, #60a5fa 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradientShine 8s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

.breathe-idle {
  animation: idleBreathe 5s ease-in-out infinite;
}

.marquee-container {
  overflow: hidden;
  position: relative;
  width: 100%;
  mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}

.marquee-track {
  display: flex;
  width: max-content;
  gap: 3rem;
  animation: marqueeScroll 25s linear infinite;
}

.marquee-track:hover {
  animation-play-state: paused;
}

/* Scroll Reveal States */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.94);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-scale.is-visible {
  opacity: 1;
  transform: scale(1);
}

.reveal-slide-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-blur {
  opacity: 0;
  filter: blur(10px);
  transform: translateY(20px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), filter 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Stagger Delays */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* Subtle Glow Cards */
.glow-card {
  position: relative;
}

.glow-card::before {
  content: '';
  position: absolute;
  inset: -1px;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.4), transparent, rgba(56, 189, 248, 0.2));
  border-radius: inherit;
  z-index: -1;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

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