* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  overflow-x: hidden;
}

body {
  background: #000;
  color: #fff;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  overflow-x: hidden;
}

/* Background video — fixed, covers viewport */
#bg-video {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  object-fit: cover;
  z-index: 1;
  filter: brightness(0.7);
}

/* Vignette overlay — gradient set by JS */
#vignette {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 2;
  background: #000;
  pointer-events: none;
}

/* Text layers — fixed, centered */
.text-layer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  z-index: 3;
  pointer-events: none;
}

#text-hello {
  opacity: var(--hello-opacity, 1);
}

#text-hello h1 {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 300;
  letter-spacing: 0.05em;
  text-shadow:
    0 0 calc(var(--glow, 0) * 35px) rgba(255, 255, 255, var(--glow, 0)),
    0 0 calc(var(--glow, 0) * 70px) rgba(255, 255, 255, calc(var(--glow, 0) * 0.4));
}

#text-skye {
  opacity: var(--skye-opacity, 0);
}

#text-skye p,
#text-learn p,
#text-day p,
#text-slow p,
#text-safe p {
  font-size: clamp(1.05rem, 1.8vw, 1.35rem);
  font-weight: 300;
  line-height: 1.8;
  letter-spacing: 0.03em;
  text-shadow:
    0 0 calc(var(--glow, 0) * 35px) rgba(255, 255, 255, var(--glow, 0)),
    0 0 calc(var(--glow, 0) * 70px) rgba(255, 255, 255, calc(var(--glow, 0) * 0.4));
}

#text-learn { opacity: var(--learn-opacity, 0); }
#text-day { opacity: var(--day-opacity, 0); }
#text-slow { opacity: var(--slow-opacity, 0); }
#text-safe { opacity: var(--safe-opacity, 0); }

/* Final CTA section */
#cta-section {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 4;
  opacity: var(--cta-opacity, 0);
  pointer-events: none;
}

#cta-section.active {
  pointer-events: auto;
}

.cta-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.cta-heading {
  font-size: clamp(1.05rem, 1.8vw, 1.35rem);
  font-weight: 300;
  line-height: 1.8;
  letter-spacing: 0.03em;
  text-align: center;
}

.cta-button {
  display: inline-block;
  padding: 0.8rem 3rem;
  border: 1px solid rgba(255, 255, 255, 0.6);
  color: #fff;
  text-decoration: none;
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  font-weight: 300;
  letter-spacing: 0.05em;
  transition: background 0.3s, border-color 0.3s;
}

.cta-button:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
}

.creator-link {
  color: rgba(255, 255, 255, 0.5);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 300;
  letter-spacing: 0.03em;
  transition: color 0.3s;
}

.creator-link:hover {
  color: rgba(255, 255, 255, 0.8);
}

/* Sound toggle */
#sound-toggle {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 10;
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 50%;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition: color 0.4s ease, border-color 0.4s ease;
}

#sound-toggle:hover {
  color: rgba(255, 255, 255, 0.9);
  border-color: rgba(255, 255, 255, 0.6);
}

#sound-toggle.pulse {
  animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% {
    color: rgba(255, 255, 255, 0.5);
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: 0 0 8px rgba(255, 255, 255, 0.15), 0 0 20px rgba(255, 255, 255, 0.05);
  }
  50% {
    color: rgba(255, 255, 255, 1);
    border-color: rgba(255, 255, 255, 1);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.6), 0 0 40px rgba(255, 255, 255, 0.3);
  }
}

/* Side navigator */
#side-nav {
  position: fixed;
  right: 2rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  opacity: 0.35;
  transition: opacity 0.6s ease;
}

#side-nav:hover {
  opacity: 0.9;
}

.nav-arrow {
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  padding: 0.4rem;
  transition: color 0.5s ease, transform 0.4s ease;
}

.nav-arrow:hover {
  color: #fff;
  transform: scale(1.15);
}

.nav-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: transparent;
  cursor: pointer;
  padding: 0;
  transition: all 0.5s ease;
}

.nav-dot:hover {
  border-color: rgba(255, 255, 255, 0.7);
  transform: scale(1.3);
}

.nav-dot.active {
  background: rgba(255, 255, 255, 0.8);
  border-color: rgba(255, 255, 255, 0.8);
  box-shadow: 0 0 6px rgba(255, 255, 255, 0.3);
}

/* Scroll spacer — drives the scroll length */
#scroll-spacer {
  height: 900vh;
  pointer-events: none;
}