/* === Noir Investigative Theme === */

/* Film grain overlay */
.film-grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.02;
  mix-blend-mode: overlay;
}

/* Vignette on graph */
.has-vignette::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: var(--z-vignette);
  background: radial-gradient(
    ellipse at center,
    transparent 50%,
    rgba(10, 10, 20, 0.6) 100%
  );
}

/* Paper texture on panels */
.paper-texture::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.03;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  background-size: 200px 200px;
}

/* Red thread line decoration */
.red-thread-line {
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--red-thread) 20%,
    var(--red-thread) 80%,
    transparent
  );
  opacity: 0.4;
}

/* Redacted text effect */
.redacted {
  background: var(--text-primary);
  color: transparent;
  padding: 0 0.2em;
  user-select: none;
  position: relative;
}

/* Noir card */
.noir-card {
  background: var(--bg-surface);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 2px;
  position: relative;
  overflow: hidden;
}

.noir-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--red-thread);
  opacity: 0.6;
}

/* Evidence pin effect */
.evidence-pin {
  position: relative;
}

.evidence-pin::after {
  content: '';
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%);
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--red-thread);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

/* Fade transitions for sections */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Glowing accent for important elements */
.glow-accent {
  box-shadow: 0 0 20px rgba(201, 48, 44, 0.2),
              0 0 60px rgba(201, 48, 44, 0.1);
}

/* Scanline effect for intro */
@keyframes scanline {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(100vh); }
}

.scanline-effect::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    transparent 50%,
    rgba(138, 164, 255, 0.02) 50%
  );
  background-size: 100% 4px;
  pointer-events: none;
  z-index: 1;
}