/* ============================================
   Fullscreen Sequence Intro — Auto-Play
   Cinematic intro that plays then removes itself
   ============================================ */

/* Intro Section: fixed fullscreen overlay */
#sequence-intro {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  background-color: #030712;
  z-index: 70;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Fade-out when sequence finishes */
#sequence-intro.intro-finished {
  opacity: 0;
  pointer-events: none;
}

/* Canvas fills entire viewport */
.intro-canvas-sticky {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

#intro-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* ---- Intro Loader (preloading frames) ---- */
.intro-loader {
  position: fixed;
  inset: 0;
  z-index: 200;
  background-color: #030712;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  opacity: 1;
  visibility: visible;
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              visibility 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: all;
}

.intro-loader.loaded {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.intro-loader-bar-track {
  width: 220px;
  height: 3px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 999px;
  overflow: hidden;
}

.intro-loader-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #2563eb, #38bdf8);
  border-radius: 999px;
  transition: width 0.15s ease;
}

.intro-loader-text {
  font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.3);
}

.intro-loader-percentage {
  font-family: 'JetBrains Mono', 'Plus Jakarta Sans', monospace;
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, #ffffff 0%, #60a5fa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

/* ---- Skip Button ---- */
.intro-skip-btn {
  position: absolute;
  bottom: 2rem;
  right: 2rem;
  z-index: 10;
  padding: 0.5rem 1.25rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.4);
  font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.intro-skip-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.7);
}

/* ---- Vignette overlay ---- */
.intro-vignette {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 5;
  background: radial-gradient(
    ellipse at center,
    transparent 50%,
    rgba(3, 7, 18, 0.5) 100%
  );
}

/* ---- Navbar hiding during intro ---- */
header.intro-hidden {
  opacity: 0 !important;
  pointer-events: none !important;
  transform: translateY(-100%) !important;
  transition: opacity 0.5s ease, transform 0.5s ease !important;
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .intro-loader-percentage {
    font-size: 2rem;
  }
  
  .intro-loader-bar-track {
    width: 160px;
  }

  .intro-skip-btn {
    bottom: 1.5rem;
    right: 1.5rem;
    font-size: 0.6rem;
    padding: 0.4rem 1rem;
  }
}