/**
 * Retro CRT Theme Styles
 * High-fidelity CRT monitor simulation
 */

@import url('https://fonts.googleapis.com/css2?family=VT323&display=swap');

.theme-retro {
  background-color: var(--retro-bg, #0d0d0d);
  font-family: 'VT323', 'Courier New', 'Lucida Console', monospace;
  position: relative;
  overflow: hidden;
  perspective: 1000px;
}

/* CRT Screen Container (Curvature & Bezel) */
.theme-retro::before {
  content: " ";
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%), 
              linear-gradient(90deg, rgba(255, 0, 0, 0.06), rgba(0, 255, 0, 0.02), rgba(0, 0, 255, 0.06));
  z-index: 2;
  background-size: 100% 2px, 3px 100%;
  pointer-events: none;
}

/* Vignette & Screen Glow */
.theme-retro::after {
  content: " ";
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  background: radial-gradient(circle, rgba(0,0,0,0) 50%, rgba(0,0,0,0.6) 100%);
  box-shadow: inset 0 0 100px rgba(0,0,0,0.9);
  pointer-events: none;
  z-index: 3;
}

/* Scanline Animation */
.theme-retro .retro-scanlines {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    to bottom,
    rgba(255,255,255,0),
    rgba(255,255,255,0) 50%,
    rgba(0,0,0,0.2) 50%,
    rgba(0,0,0,0.2)
  );
  background-size: 100% 4px;
  animation: retro-scanline 0.3s linear infinite;
  pointer-events: none;
  z-index: 4;
}

/* Base Text Style */
.theme-retro .retro-sign-text,
.theme-retro .retro-flow-text {
  color: var(--retro-color, #33ff33);
  font-weight: 400; /* VT323 is bold by default */
  white-space: nowrap;
  user-select: none;
  line-height: 1.1;
  
  /* Phosphor glow & Chromatic Aberration */
  text-shadow:
    2px 0 2px rgba(255,0,0,0.5),
    -2px 0 2px rgba(0,0,255,0.5),
    0 0 8px var(--retro-color, #33ff33);
    
  filter: contrast(1.3) brightness(1.1);
  animation: retro-twitch 4s infinite;
}

/* SIGN mode */
.theme-retro .retro-sign-text {
  position: relative;
  z-index: 1;
}

/* FLOW mode */
.theme-retro .retro-flow-track {
  display: flex;
  align-items: center;
  white-space: nowrap;
  will-change: transform;
  position: relative;
  z-index: 1;
}

.theme-retro .retro-flow-text {
  padding: 0 0.5em;
  flex-shrink: 0;
}

/* Animations */
@keyframes retro-scanline {
  0% { transform: translateY(0); }
  100% { transform: translateY(4px); }
}

@keyframes retro-twitch {
  0% { transform: skewX(0deg); }
  5% { transform: skewX(0.5deg); }
  10% { transform: skewX(0deg); }
  95% { transform: skewX(0deg); }
  98% { transform: skewX(-0.5deg); }
  100% { transform: skewX(0deg); }
}