:root {
  --bg-dark: #020817;
  --bg-overlay: rgba(1, 6, 15, 0.88);
  --accent: #0ea5e9;
  --accent-strong: #6366f1;
  --text-light: #f8fafc;
  --text-muted: #cbd5f5;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  min-height: 100vh;
  color: var(--text-light);
  background: var(--bg-dark);
  overflow: hidden;
}
.video-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}
.video-bg video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.35);
}
.overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-overlay);
  z-index: 1;
  backdrop-filter: blur(6px);
}
.shell {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2.5rem 1.5rem;
  text-align: center;
}
.logo-wrap {
  width: 150px;
  height: 150px;
  position: relative;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 2rem;
  transition: transform 0.4s ease, filter 0.4s ease;
}
.logo-wrap:hover {
  transform: scale(1.05);
  filter: drop-shadow(0 0 30px rgba(14, 165, 233, 0.45));
}
.logo-wrap::before,
.logo-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.35);
  animation: slow-spin 12s linear infinite;
}
.logo-wrap::after {
  inset: 12px;
  border-color: rgba(14, 165, 233, 0.45);
  animation-direction: reverse;
}
.logo-ring {
  position: absolute;
  inset: -18px;
  border-radius: 999px;
  border: 1px dashed rgba(255, 255, 255, 0.2);
  animation: slow-spin 18s linear infinite;
  pointer-events: none;
}
.logo-beam {
  position: absolute;
  inset: -35px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.35), transparent 60%);
  animation: beam 8s ease-in-out infinite;
  pointer-events: none;
}
.logo-emblem {
  width: 110px;
  height: 110px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.logo-rotor {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: emblem-spin 16s linear infinite;
  transition: filter 0.4s ease;
}
.logo-rotor img {
  width: 72%;
  filter: drop-shadow(0 8px 20px rgba(0, 0, 0, 0.5));
  transition: filter 0.4s ease;
}
.logo-wrap:hover .logo-rotor {
  filter: drop-shadow(0 0 25px rgba(14, 165, 233, 0.8));
}
.logo-wrap:hover .logo-rotor img {
  filter: drop-shadow(0 0 30px rgba(14, 165, 233, 0.9));
}
.logo-wrap:hover::before,
.logo-wrap:hover::after,
.logo-wrap:hover .logo-ring {
  border-color: rgba(99, 102, 241, 0.9);
}
.floating-text {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  pointer-events: none;
  z-index: 0;
  color: rgba(148, 163, 184, 0.08);
  font-size: clamp(3rem, 8vw, 8rem);
  font-family: 'Barlow', sans-serif;
  letter-spacing: 0.4em;
  animation: shimmer 6s ease-in-out infinite alternate;
}
h1 {
  font-family: 'Barlow', sans-serif;
  font-size: clamp(2rem, 3vw, 3rem);
  margin: 0 0 1rem;
  letter-spacing: 0.05em;
}
p {
  margin: 0.5rem auto;
  max-width: 640px;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-muted);
}
.tagline {
  text-transform: uppercase;
  letter-spacing: 0.4em;
  font-size: 0.75rem;
  color: rgba(248, 250, 252, 0.85);
}
.pulse {
  margin: 2rem auto 0;
  width: 70px;
  height: 70px;
  border-radius: 50%;
  border: 3px solid transparent;
  border-top-color: var(--accent);
  border-right-color: var(--accent-strong);
  animation: spin 1.4s linear infinite;
  position: relative;
}
.pulse::after {
  content: '';
  position: absolute;
  inset: 10px;
  border-radius: 50%;
  border: 1px dashed rgba(255, 255, 255, 0.25);
  animation: orbit 3s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
@keyframes slow-spin {
  to { transform: rotate(360deg); }
}
@keyframes orbit {
  to { transform: rotate(-360deg); }
}
@keyframes emblem-spin {
  to { transform: rotate(360deg); }
}
@keyframes beam {
  0%, 100% { opacity: 0.35; transform: scale(1); }
  50% { opacity: 0.15; transform: scale(1.2); }
}
@keyframes shimmer {
  from { opacity: 0.08; }
  to { opacity: 0.18; }
}
@media (max-width: 640px) {
  .logo-wrap {
    width: 120px;
    height: 120px;
  }
  .logo-emblem,
  .logo-rotor {
    width: 90px;
    height: 90px;
  }
  .tagline {
    letter-spacing: 0.25em;
  }
}