/* Character flash - subtle white */
@keyframes charFlashNoise {
  0% {
    background-color: transparent;
    color: inherit;
    box-shadow: none;
    filter: none;
  }
  10% {
    background-color: rgba(255, 255, 255, 0.075);
    color: inherit;
    box-shadow: 0 0 1px rgba(255, 255, 255, 0.15);
    filter: contrast(1.025) brightness(1.025);
  }
  20% {
    background-color: transparent;
    filter: contrast(1.01);
  }
  30% {
    background-color: rgba(255, 255, 255, 0.05);
    color: inherit;
    box-shadow: 0 0 1px rgba(255, 255, 255, 0.1);
    filter: contrast(1.025) brightness(1.015);
  }
  50% {
    background-color: rgba(255, 255, 255, 0.06);
    color: inherit;
    filter: contrast(1.02);
  }
  100% {
    background-color: transparent;
    color: inherit;
    box-shadow: none;
    filter: none;
  }
}

/* Noise background for glitch areas */
@keyframes noiseFlicker {
  0%, 100% { opacity: 0; }
  10% { opacity: 0.15; }
  20% { opacity: 0.05; }
  30% { opacity: 0.2; }
  40% { opacity: 0.08; }
  50% { opacity: 0.18; }
  60% { opacity: 0.06; }
  70% { opacity: 0.15; }
  80% { opacity: 0.1; }
  90% { opacity: 0.12; }
}

/* Character glitch - reduced intensity, faster */
@keyframes charFlashFadeNoise {
  0% {
    background-color: transparent;
    color: inherit;
    box-shadow: none;
    filter: none;
  }
  15% {
    background-color: rgba(255, 255, 255, 0.15);
    color: inherit;
    box-shadow: 0 0 2px rgba(255, 255, 255, 0.3);
    filter: contrast(1.08) brightness(1.06);
  }
  35% {
    background-color: rgba(255, 255, 255, 0.1);
    color: inherit;
    box-shadow: 0 0 1px rgba(255, 255, 255, 0.2);
    filter: contrast(1.06) brightness(1.04);
  }
  60% {
    background-color: rgba(255, 255, 255, 0.12);
    color: inherit;
    filter: contrast(1.04);
  }
  100% {
    background-color: transparent;
    color: inherit;
    box-shadow: none;
    filter: none;
  }
}

/* Base glitch animation - timing set via inline styles, 2x faster */
.char-glitch {
  animation: charFlashFadeNoise 0.265s ease-out;
}

/* Noise overlay for glitch rows */
.glitch-row-active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='6.5' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.4'/%3E%3C/svg%3E");
  opacity: 0;
  animation: noiseFlicker 0.24s ease-in-out;
  pointer-events: none;
  z-index: 0;
  mix-blend-mode: overlay;
}

.glitch-row-active {
  position: relative;
}

/* Row blink effect - subtle white */
@keyframes rowBlink {
  0%, 100% {
    opacity: 1;
    filter: none;
  }
  15% {
    opacity: 0.925;
    filter: brightness(1.04) contrast(1.025);
  }
  30% {
    opacity: 1;
    filter: none;
  }
  45% {
    opacity: 0.94;
    filter: brightness(1.06);
  }
  60% {
    opacity: 1;
  }
}

.row-blink {
  animation: rowBlink 0.2s ease-in-out;
}

/* Waterfall glitch with noise */
@keyframes waterfallNoise {
  0% {
    clip-path: inset(0 0 100% 0);
    filter: none;
  }
  20% {
    clip-path: inset(0 0 60% 0);
    filter: brightness(1.4) saturate(1.3) blur(0.5px);
  }
  40% {
    clip-path: inset(0 0 30% 0);
    filter: brightness(1.2) contrast(1.3);
  }
  60% {
    clip-path: inset(0 0 10% 0);
    filter: brightness(1.1) blur(0.3px);
  }
  80% {
    clip-path: inset(0 0 0% 0);
    filter: brightness(1.3);
  }
  100% {
    clip-path: inset(0 0 0% 0);
    filter: none;
  }
}

.row-waterfall {
  position: relative;
}

.row-waterfall::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.6'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 1;
  mix-blend-mode: overlay;
  animation: waterfallNoise 0.6s ease-out;
}

/* VSYNC tear effect */
@keyframes vsyncTear {
  0%, 100% {
    transform: translateX(0);
    opacity: 1;
  }
  10% {
    transform: translateX(-8px);
    opacity: 0.8;
  }
  20% {
    transform: translateX(12px);
    opacity: 0.9;
  }
  30% {
    transform: translateX(-5px);
    opacity: 0.85;
  }
  40% {
    transform: translateX(7px);
    opacity: 0.95;
  }
  50% {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes scanlineTear {
  0%, 100% {
    background-position: 0 0;
    opacity: 0;
  }
  50% {
    background-position: 0 100%;
    opacity: 0.4;
  }
}

.vsync-glitch {
  animation: vsyncTear 0.15s ease-in-out;
  position: relative;
}

.vsync-glitch::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    var(--accent) 2px,
    var(--accent) 3px
  );
  background-size: 100% 6px;
  pointer-events: none;
  z-index: 10;
  animation: scanlineTear 0.125s linear;
  mix-blend-mode: screen;
  opacity: 0.3;
}

/* VEX console at bottom */
.vex-code-overlay {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(0, 0, 0, 0.85);
  border-top: 1px solid var(--accent);
  padding: 12px 20px;
  font-family: Consolas, monospace;
  font-size: 12px;
  color: var(--fg);
  pointer-events: none;
  z-index: 1000;
  max-height: 150px;
  overflow: hidden;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.5);
}

.vex-line {
  margin: 3px 0;
  opacity: 0;
  color: var(--muted);
  transition: opacity 0.48s ease-out;
  display: flex;
  align-items: baseline;
}

.vex-line.typing {
  opacity: 1;
  color: var(--accent);
}

.vex-line.visible {
  opacity: 0.6;
  color: var(--muted);
}

.vex-line.fading {
  opacity: 0;
}

.vex-line pre {
  margin: 0;
  display: inline;
}

/* Line numbers */
.vex-line::before {
  content: attr(data-line-num);
  color: var(--muted);
  opacity: 0.3;
  margin-right: 12px;
  min-width: 25px;
  text-align: right;
  font-size: 10px;
}

/* Indentation - very subtle */
.vex-line[data-indent="1"] { padding-left: 8px; }
.vex-line[data-indent="2"] { padding-left: 16px; }
.vex-line[data-indent="3"] { padding-left: 24px; }
.vex-line[data-indent="4"] { padding-left: 32px; }

/* Typing cursor */
@keyframes cursorBlink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

.typing-cursor {
  display: inline-block;
  background: var(--accent);
  margin-left: 1px;
  animation: cursorBlink 0.8s infinite;
}

.typing-cursor::before {
  content: '█';
  color: var(--accent);
  font-weight: normal;
}

/* Button blink animation */
@keyframes buttonBlink {
  0%, 50% { opacity: 1; transform: scale(1); }
  51%, 100% { opacity: 0.2; transform: scale(0.95); }
}

/* Button jitter animation */
@keyframes buttonJitter {
  0%, 100% { transform: translateX(0); }
  10% { transform: translateX(-2px) translateY(-1px); }
  20% { transform: translateX(2px) translateY(1px); }
  30% { transform: translateX(-1px) translateY(-2px); }
  40% { transform: translateX(1px) translateY(2px); }
  50% { transform: translateX(-2px) translateY(1px); }
  60% { transform: translateX(2px) translateY(-1px); }
  70% { transform: translateX(-1px) translateY(-1px); }
  80% { transform: translateX(1px) translateY(1px); }
  90% { transform: translateX(-1px) translateY(-2px); }
}

.theme-switcher.blink {
  animation: buttonBlink 0.8s ease-in-out infinite;
}

.theme-switcher.jitter {
  animation: buttonJitter 0.6s ease-in-out infinite;
}

/* Blinking arrows animation */
@keyframes blinkArrows {
  0%, 50% { opacity: 0; }
  51%, 100% { opacity: 1; }
}

/* Blinking arrows within the text */
.blink-arrows {
  display: inline;
  color: var(--accent);
  font-size: inherit;
  font-weight: bold;
}

.blink-1 {
  animation: blinkArrows 1.2s ease-in-out infinite;
}

.blink-2 {
  animation: blinkArrows 1.2s ease-in-out infinite;
  animation-delay: 0.1s;
}

.blink-3 {
  animation: blinkArrows 1.2s ease-in-out infinite;
  animation-delay: 0.2s;
}

@keyframes bounceIn {
  0% {
    opacity: 0;
    transform: translateY(-50%) scale(0.3);
  }
  50% {
    transform: translateY(-50%) scale(1.1);
  }
  100% {
    opacity: 1;
    transform: translateY(-50%) scale(1);
  }
}