/*
 * CHAPTER 1: HERO
 * Cinematic Mask Reveal, Video Background
 */

.chapter-1 {
  position: relative;
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  z-index: var(--z-content);
}

/* Custom Hero Background Effect */
.c1-bg-effect {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 0;
  overflow: hidden;
  background: var(--bg-deep);
}

#hero-particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.c1-gradient-orb {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 80vw;
  height: 80vw;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(0, 114, 255, 0.15) 0%, rgba(0, 230, 118, 0.05) 50%, transparent 70%);
  filter: blur(80px);
  animation: pulse-orb 10s infinite alternate ease-in-out;
}

@keyframes pulse-orb {
  0% { transform: translate(-50%, -50%) scale(1); opacity: 0.8; }
  100% { transform: translate(-50%, -50%) scale(1.2); opacity: 1; }
}

.c1-grid-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  z-index: 1;
  mask-image: linear-gradient(to bottom, black 40%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, black 40%, transparent 100%);
}

.c1-content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 1600px;
  padding: 0 4rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.c1-headline {
  font-family: var(--font-display);
  font-size: var(--text-huge);
  font-weight: 500;
  line-height: 0.9;
  letter-spacing: -0.04em;
  margin-bottom: 3rem;
  perspective: 1500px;
  position: relative;
}

/* Dynamic lighting layer for mouse tracking */
.c1-lighting {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(circle 250px at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(255,255,255,1) 0%, rgba(255,255,255,0.1) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  pointer-events: none;
  opacity: 0; /* JS will fade this in */
  mix-blend-mode: overlay;
}

.c1-line {
  display: block;
  overflow: hidden; /* For masking text reveal */
  padding-bottom: 0.1em;
}

.c1-indent {
  margin-left: 10vw;
}

.c1-glow {
  color: transparent;
  -webkit-text-stroke: 1px var(--text-pure);
  text-shadow: 0 0 30px rgba(255,255,255,0.1);
  transition: color 0.5s, text-shadow 0.5s;
}

.c1-glow:hover {
  color: var(--text-pure);
  text-shadow: var(--glow-text);
}

.c1-manifesto-wrapper {
  max-width: 700px;
  margin-left: 15vw;
}

.c1-manifesto {
  font-size: var(--text-manifesto);
  color: var(--text-muted);
  line-height: 1.5;
  font-weight: 400;
}

.c1-text-green { color: var(--accent-secondary); font-weight: 500; }
.c1-text-blue { color: var(--accent-primary); font-weight: 500; }
.c1-brand-text { font-family: var(--font-display); font-weight: 700; color: var(--text-pure); letter-spacing: 0.5px; }

/* Scroll Indicator */
.c1-scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 4rem;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-display);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-dim);
}

.c1-mouse {
  width: 20px;
  height: 30px;
  border: 1px solid var(--text-dim);
  border-radius: 10px;
  position: relative;
}

.c1-wheel {
  width: 2px;
  height: 6px;
  background: var(--text-pure);
  border-radius: 2px;
  position: absolute;
  top: 4px;
  left: 50%;
  transform: translateX(-50%);
}