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

body {
  background: #000;
  color: #fff;
  font-family: 'Inter', sans-serif;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* Video Background */
.video-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  overflow: hidden;
}

.video-bg video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.3) contrast(1.2) saturate(0.8);
}

.video-bg::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(ellipse at center, rgba(0, 0, 0, 0.3) 0%, rgba(0, 0, 0, 0.85) 100%);
}

/* Particle Canvas */
#particleCanvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

/* Main Content */
.content {
  position: relative;
  z-index: 1;
  text-align: center;
}

/* Letter-by-letter Reveal */
.logo-reveal {
  display: flex;
  justify-content: center;
  gap: 0.1em;
}

.letter {
  display: inline-block;
  font-size: clamp(2.5rem, 8vw, 6rem);
  font-weight: 900;
  font-family: 'Space Grotesk', sans-serif;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(80px) rotateX(90deg) scale(0.5);
  filter: blur(10px);
  animation: letterReveal 1s cubic-bezier(0.16, 1, 0.3, 1) forwards,
    textGlow 4s ease-in-out 2.5s infinite alternate;
  animation-delay: calc(var(--i) * 0.08s + 0.3s),
    calc(var(--i) * 0.08s + 2.5s);
  background: linear-gradient(135deg, #ffffff 0%, #00f2ff 50%, #ffffff 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: none;
  transition: filter 0.4s ease, transform 0.3s ease;
  cursor: default;
}

.letter:hover {
  filter: drop-shadow(0 0 30px rgba(0, 242, 255, 0.9)) drop-shadow(0 0 60px rgba(0, 242, 255, 0.4));
  transform: translateY(-5px) scale(1.1);
}

@keyframes letterReveal {
  0% {
    opacity: 0;
    transform: translateY(80px) rotateX(90deg) scale(0.5);
    filter: blur(10px);
  }

  60% {
    filter: blur(0);
  }

  100% {
    opacity: 1;
    transform: translateY(0) rotateX(0deg) scale(1);
    filter: blur(0);
  }
}

@keyframes textGlow {
  0% {
    background-position: 0% 50%;
    filter: drop-shadow(0 0 5px rgba(0, 242, 255, 0.1));
  }

  50% {
    background-position: 100% 50%;
    filter: drop-shadow(0 0 20px rgba(0, 242, 255, 0.4));
  }

  100% {
    background-position: 0% 50%;
    filter: drop-shadow(0 0 5px rgba(0, 242, 255, 0.1));
  }
}

.second-word {
  margin-top: -0.1em;
}

/* Divider Line */
.divider {
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(0, 242, 255, 0.8), #fff, rgba(0, 242, 255, 0.8), transparent);
  margin: 2.5rem auto;
  animation: expandLine 1.2s ease-out 1.8s forwards;
  box-shadow: 0 0 15px rgba(0, 242, 255, 0.4);
}

@keyframes expandLine {
  to {
    width: min(500px, 85vw);
  }
}

/* Tagline with typing cursor */
.tagline {
  font-size: clamp(0.9rem, 2vw, 1.2rem);
  font-weight: 300;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 3px;
  text-transform: uppercase;
  opacity: 0;
  animation: fadeUp 1s ease 2.2s forwards, taglinePulse 3s ease-in-out 3.5s infinite;
}

.cursor {
  animation: blink 0.8s step-end infinite;
  color: rgba(0, 242, 255, 0.9);
  font-weight: 100;
  text-shadow: 0 0 10px rgba(0, 242, 255, 0.6);
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
    filter: blur(5px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
  }
}

@keyframes taglinePulse {

  0%,
  100% {
    color: rgba(255, 255, 255, 0.5);
  }

  50% {
    color: rgba(0, 242, 255, 0.6);
  }
}

/* Coming Soon Badge */
.coming-soon {
  margin-top: 3rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 6px;
  text-transform: uppercase;
  color: rgba(0, 242, 255, 0.8);
  border: 1px solid rgba(0, 242, 255, 0.2);
  display: inline-block;
  padding: 0.8rem 2.5rem;
  border-radius: 100px;
  opacity: 0;
  animation: fadeUp 1s ease 2.6s forwards, badgePulse 3s ease-in-out 4s infinite;
  position: relative;
  overflow: hidden;
  transition: all 0.4s ease;
}

.coming-soon:hover {
  border-color: rgba(0, 242, 255, 0.6);
  box-shadow: 0 0 25px rgba(0, 242, 255, 0.3), inset 0 0 25px rgba(0, 242, 255, 0.05);
  transform: scale(1.05);
  color: #00f2ff;
}

.coming-soon::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 242, 255, 0.15), transparent);
  animation: shimmer 2.5s ease-in-out 3s infinite;
}

@keyframes shimmer {
  0% {
    left: -100%;
  }

  100% {
    left: 100%;
  }
}

@keyframes badgePulse {

  0%,
  100% {
    border-color: rgba(0, 242, 255, 0.2);
    box-shadow: 0 0 0 rgba(0, 242, 255, 0);
  }

  50% {
    border-color: rgba(0, 242, 255, 0.4);
    box-shadow: 0 0 20px rgba(0, 242, 255, 0.15);
  }
}

/* Responsive — Tablet */
@media (max-width: 768px) {
  .content {
    padding: 0 1.5rem;
  }

  .letter {
    font-size: clamp(2rem, 7vw, 3.5rem);
    letter-spacing: 0.05em;
  }

  .logo-reveal {
    gap: 0.05em;
  }

  .second-word {
    margin-top: -0.05em;
  }

  .tagline {
    font-size: 0.9rem;
    letter-spacing: 2px;
  }

  .divider {
    margin: 2rem auto;
  }

  .coming-soon {
    margin-top: 2rem;
    font-size: 0.7rem;
    letter-spacing: 4px;
    padding: 0.7rem 2rem;
  }
}

/* Responsive — Phone */
@media (max-width: 480px) {
  .content {
    padding: 0 1rem;
  }

  .letter {
    font-size: clamp(1.5rem, 10vw, 2.5rem);
    letter-spacing: 0.02em;
  }

  .logo-reveal {
    gap: 0.01em;
  }

  .second-word {
    margin-top: 0;
  }

  .tagline {
    font-size: 0.75rem;
    letter-spacing: 1.5px;
  }

  .divider {
    margin: 1.5rem auto;
  }

  .coming-soon {
    margin-top: 1.5rem;
    font-size: 0.6rem;
    letter-spacing: 3px;
    padding: 0.6rem 1.5rem;
  }

  .cursor {
    font-size: 0.85rem;
  }
}