/* ==============================================================================
   ELECTRAX 2K26 - ELECTRICAL ANIMATIONS & EFFECTS (electrical.css)
   ============================================================================== */

/* ------------------------------------------------------------------------------
   1. LIVE ELECTRICAL CANVAS BACKGROUND
   ------------------------------------------------------------------------------ */
#electrical-canvas-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: var(--z-bg-canvas);
  pointer-events: none;
  overflow: hidden;
  background: radial-gradient(circle at 50% 20%, #08132e 0%, #04091a 50%, #02050e 100%);
}

#electrical-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: block;
}

/* Background Ambient Lighting Overlay */
.ambient-lighting {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(ellipse 60% 40% at 50% 0%, rgba(0, 240, 255, 0.08), transparent 70%),
    radial-gradient(ellipse 50% 50% at 80% 60%, rgba(0, 136, 255, 0.06), transparent 70%),
    radial-gradient(ellipse 40% 40% at 20% 80%, rgba(121, 40, 202, 0.05), transparent 70%);
  pointer-events: none;
}

/* Subtle Technical Grid Lines */
.tech-grid-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(rgba(0, 240, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 240, 255, 0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  opacity: 0.6;
}

/* ------------------------------------------------------------------------------
   2. POWER-UP INTRO SEQUENCE (CINEMATIC LIGHTNING BOOT)
   ------------------------------------------------------------------------------ */
#intro-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: #000000;
  z-index: var(--z-intro-overlay);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
  user-select: none;
}

#intro-overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* Lightning Flash Canvas inside Intro */
#intro-lightning-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

/* Intro Flash Layer */
.intro-flash-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #ffffff;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease-out;
}

.intro-flash-layer.active {
  opacity: 0.95;
}

.intro-content {
  position: relative;
  z-index: 2;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  transform: scale(0.92);
  opacity: 0;
  transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.intro-content.power-on {
  transform: scale(1);
  opacity: 1;
}

.intro-voltage-badge {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  color: var(--color-electric-cyan);
  padding: 0.35rem 1rem;
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid rgba(0, 240, 255, 0.4);
  border-radius: 4px;
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.3);
  text-transform: uppercase;
}

.intro-logo {
  font-family: var(--font-brand);
  font-size: clamp(2.5rem, 8vw, 5.5rem);
  font-weight: 900;
  letter-spacing: 0.1em;
  color: #ffffff;
  text-shadow: 0 0 30px var(--color-electric-cyan), 0 0 60px rgba(0, 136, 255, 0.8);
  line-height: 1;
}

.intro-subtitle {
  font-family: var(--font-heading);
  font-size: 1rem;
  letter-spacing: 0.25em;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.intro-power-status {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-success-green);
  text-shadow: 0 0 10px rgba(0, 245, 155, 0.5);
}

.status-indicator {
  width: 8px;
  height: 8px;
  background-color: var(--color-success-green);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--color-success-green);
  animation: pulse-dot 1s infinite;
}

/* Skip intro button */
.intro-skip-btn {
  position: absolute;
  bottom: 2rem;
  right: 2rem;
  padding: 0.5rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  transition: all 0.2s ease;
  z-index: 10;
}

.intro-skip-btn:hover {
  color: var(--color-electric-cyan);
  border-color: var(--color-electric-cyan);
  background: rgba(0, 240, 255, 0.1);
}

/* ------------------------------------------------------------------------------
   3. CUSTOM ELECTRICAL CURSOR (DESKTOP ONLY)
   ------------------------------------------------------------------------------ */
.custom-cursor-dot {
  position: fixed;
  top: 0;
  left: 0;
  width: 8px;
  height: 8px;
  background: var(--color-electric-cyan);
  border-radius: 50%;
  pointer-events: none;
  z-index: var(--z-cursor);
  box-shadow: 0 0 12px var(--color-electric-cyan), 0 0 20px #ffffff;
  transform: translate(-50%, -50%);
  transition: transform 0.05s linear, opacity 0.3s ease;
}

.custom-cursor-ring {
  position: fixed;
  top: 0;
  left: 0;
  width: 36px;
  height: 36px;
  border: 1.5px solid rgba(0, 240, 255, 0.5);
  border-radius: 50%;
  pointer-events: none;
  z-index: var(--z-cursor);
  transform: translate(-50%, -50%);
  transition: width 0.25s cubic-bezier(0.16, 1, 0.3, 1), 
              height 0.25s cubic-bezier(0.16, 1, 0.3, 1), 
              border-color 0.25s ease, 
              background-color 0.25s ease,
              transform 0.1s ease-out;
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.2);
}

/* Crosshair notches on cursor ring */
.custom-cursor-ring::before,
.custom-cursor-ring::after {
  content: '';
  position: absolute;
  background: var(--color-electric-cyan);
  opacity: 0.7;
}

.custom-cursor-ring::before {
  top: -4px;
  left: 50%;
  width: 2px;
  height: 4px;
  transform: translateX(-50%);
}

.custom-cursor-ring::after {
  bottom: -4px;
  left: 50%;
  width: 2px;
  height: 4px;
  transform: translateX(-50%);
}

/* Interactive hover state */
body.cursor-hover .custom-cursor-ring {
  width: 54px;
  height: 54px;
  border-color: var(--color-electric-cyan);
  background: rgba(0, 240, 255, 0.08);
  box-shadow: 0 0 25px rgba(0, 240, 255, 0.5), inset 0 0 10px rgba(0, 240, 255, 0.3);
}

body.cursor-hover .custom-cursor-dot {
  transform: translate(-50%, -50%) scale(1.4);
  background: #ffffff;
  box-shadow: 0 0 16px var(--color-electric-cyan);
}

/* Hide custom cursor on mobile / touch devices */
@media (hover: none) and (pointer: coarse), (max-width: 1024px) {
  .custom-cursor-dot,
  .custom-cursor-ring {
    display: none !important;
  }
}

/* ------------------------------------------------------------------------------
   4. ELECTRICAL BORDER & GLOW EFFECTS
   ------------------------------------------------------------------------------ */
/* Electric Border Glow */
.electric-border {
  position: relative;
  border: 1px solid rgba(0, 240, 255, 0.3);
  transition: all var(--transition-medium);
}

.electric-border::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(90deg, transparent, var(--color-electric-cyan), transparent);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition-medium);
  pointer-events: none;
}

.electric-border:hover::before {
  opacity: 1;
  animation: border-spark-sweep 2s linear infinite;
}

@keyframes border-spark-sweep {
  0% {
    background-position: 0% 50%;
  }
  100% {
    background-position: 200% 50%;
  }
}

/* High Voltage Text Shimmer */
.voltage-shimmer-text {
  background: linear-gradient(90deg, #ffffff 0%, var(--color-electric-cyan) 40%, #ffffff 80%, var(--color-electric-cyan) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmer 4s linear infinite;
}

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

/* ------------------------------------------------------------------------------
   5. ACCESSIBILITY / REDUCED MOTION SUPPORT
   ------------------------------------------------------------------------------ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  #intro-overlay {
    display: none !important;
  }
  #electrical-canvas-container {
    opacity: 0.4;
  }
}