/* ===========================================
   Pronit Das Portfolio — Base Styles
   =========================================== */

html {
  scroll-behavior: smooth;
}

::selection {
  background: #FF6200;
  color: #0A0A0B;
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #0A0A0B;
}
::-webkit-scrollbar-thumb {
  background: #2A2A2D;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #FF6200;
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Signature element: subtle film-grain texture overlay (cinema motif) */
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 100;
  opacity: 0.04;
  mix-blend-mode: overlay;
  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='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* Signature element: scan line sweep (security/cyber motif) */
.scanline {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 99;
  background: linear-gradient(
    to bottom,
    transparent 0%,
    rgba(255, 98, 0, 0.04) 50%,
    transparent 100%
  );
  height: 100%;
  animation: scan 8s linear infinite;
}

@keyframes scan {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(100%); }
}

/* Scroll reveal utility */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}