/* reset */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: rgba(255,255,255,0.92);
  background: #05070c;
  overflow: hidden;
}

/* background canvas */
#bg {
  position: fixed;
  inset: 0;
  z-index: 0;
}
#c {
  width: 100%;
  height: 100%;
  display: block;
}

/* content layer */
.shell {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: min(420px, 92vw);
  background: rgba(12, 14, 20, 0.55);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 18px;
  padding: 22px 22px 18px;
  backdrop-filter: blur(10px);
  box-shadow: 0 20px 70px rgba(0,0,0,0.45);
  text-align: center;
}

.card h1 {
  margin: 0 0 6px;
  letter-spacing: 2px;
  font-weight: 800;
}

.tag {
  margin: 0 0 12px;
  font-size: 13px;
  opacity: 0.75;
}

.desc {
  margin: 0 0 18px;
  font-size: 13px;
  line-height: 1.45;
  opacity: 0.85;
}

.links {
  display: grid;
  gap: 10px;
}

.links a {
  text-decoration: none;
  color: rgba(255,255,255,0.9);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  padding: 12px 14px;
  border-radius: 12px;
  transition: transform 0.15s ease, background 0.15s ease;
}
.links a:hover {
  transform: translateY(-1px);
  background: rgba(255,255,255,0.10);
}

/* ===== ROBOTS ===== */
.bot {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  width: 140px;
  opacity: 0.25;
  pointer-events: none;
  z-index: 1;
  animation: floatBot 6s ease-in-out infinite;
}
.bot--left { left: 4%; }
.bot--right { right: 4%; animation-delay: 3s; }

@media (max-width: 700px) {
  .bot { width: 96px; opacity: 0.18; }
  .bot--left { left: 2%; }
  .bot--right { right: 2%; }
}

.bot__svg {
  width: 100%;
  height: auto;
  fill: none;
  stroke: rgba(255,255,255,0.6);
  stroke-width: 2;
}

@keyframes floatBot {
  0%, 100% { transform: translateY(calc(-50% - 8px)); }
  50% { transform: translateY(calc(-50% + 8px)); }
}

.bot__svg .eye,
.bot__svg .chest {
  fill: rgba(0, 200, 255, 0.7);
  stroke: none;
  animation: pulseEye 2s ease-in-out infinite;
}

@keyframes pulseEye {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}