:root {
  --bg: #070712;
  --ink: #f3f0ff;
  --muted: #9aa3c7;
  --cyan: #2de2e6;
  --purple: #7b3fe4;
  --yellow: #ffd100;
  --blue: #2f7bff;
  --green: #21d07a;
  --red: #ff3b4a;
  --hud: #d7dcec;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  min-height: 100vh;
  color: var(--ink);
  font-family: "Share Tech Mono", ui-monospace, monospace;
  background:
    radial-gradient(ellipse at 50% 18%, rgba(123, 63, 228, 0.22), transparent 42%),
    radial-gradient(ellipse at 50% 70%, rgba(45, 226, 230, 0.08), transparent 46%),
    var(--bg);
  overflow-x: hidden;
}

.crt,
.vignette,
.scanlines {
  pointer-events: none;
  position: fixed;
  inset: 0;
}

.vignette {
  box-shadow: inset 0 0 180px 40px rgba(0, 0, 0, 0.72);
  z-index: 8;
}

.scanlines {
  z-index: 9;
  background: repeating-linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.035) 0 1px,
    transparent 1px 3px
  );
  mix-blend-mode: overlay;
  opacity: 0.55;
}

.crt {
  z-index: 10;
  background: radial-gradient(circle at center, transparent 55%, rgba(0, 0, 0, 0.28) 100%);
}

.hud {
  position: relative;
  z-index: 5;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.1rem 1.4rem 0;
  color: var(--hud);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.hud-brand,
.hud-status,
.tag,
.start,
.foot p {
  margin: 0;
}

.hud-status {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.led {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 10px var(--green);
  animation: pulse 1.8s ease-in-out infinite;
}

.stage {
  position: relative;
  z-index: 3;
  min-height: calc(100vh - 6.5rem);
  display: grid;
  place-items: center;
  padding: 2rem 1.25rem 5rem;
}

.floor {
  position: absolute;
  left: -10%;
  right: -10%;
  bottom: -12%;
  height: 58%;
  background:
    linear-gradient(to top, rgba(7, 7, 18, 0.96), transparent 72%),
    repeating-linear-gradient(
      to right,
      rgba(45, 226, 230, 0.15) 0 2px,
      transparent 2px 72px
    ),
    repeating-linear-gradient(
      to bottom,
      rgba(123, 63, 228, 0.18) 0 2px,
      transparent 2px 72px
    );
  transform: perspective(420px) rotateX(64deg);
  transform-origin: center bottom;
  mask-image: linear-gradient(to top, rgba(0, 0, 0, 0.85), transparent);
}

.hero {
  position: relative;
  text-align: center;
  max-width: 46rem;
}

.orbit {
  position: absolute;
  inset: -1.2rem auto auto 50%;
  width: 16.5rem;
  height: 16.5rem;
  margin-left: -8.25rem;
  animation: spin 22s linear infinite;
}

.c-btn {
  position: absolute;
  width: 0.95rem;
  height: 0.95rem;
  border-radius: 50%;
  box-shadow: 0 0 14px currentColor;
}

.c-yellow { top: 0; left: 50%; margin-left: -0.47rem; background: var(--yellow); color: var(--yellow); }
.c-blue { top: 50%; right: 0; margin-top: -0.47rem; background: var(--blue); color: var(--blue); }
.c-green { bottom: 0; left: 50%; margin-left: -0.47rem; background: var(--green); color: var(--green); }
.c-red { top: 50%; left: 0; margin-top: -0.47rem; background: var(--red); color: var(--red); }

.emblem {
  width: min(15rem, 62vw);
  margin: 0 auto 1.4rem;
  filter: drop-shadow(0 0 24px rgba(45, 226, 230, 0.35));
  animation: float 4.8s ease-in-out infinite;
}

.emblem svg {
  display: block;
  width: 100%;
  height: auto;
}

h1 {
  margin: 0 0 0.7rem;
  font-family: Audiowide, "Segoe UI", sans-serif;
  font-size: clamp(3.1rem, 12vw, 7rem);
  font-weight: 400;
  line-height: 0.92;
  letter-spacing: 0.06em;
  text-transform: lowercase;
  color: #f7f4ff;
  text-shadow:
    -2px 0 var(--red),
    2px 0 var(--cyan),
    0 5px 0 #160c33,
    0 0 28px rgba(45, 226, 230, 0.45);
}

.tag {
  color: var(--muted);
  font-size: clamp(0.95rem, 2.4vw, 1.2rem);
  letter-spacing: 0.08em;
}

.start {
  margin-top: 1.8rem;
  color: var(--yellow);
  letter-spacing: 0.28em;
  font-size: 1rem;
  text-shadow: 0 0 16px rgba(255, 209, 0, 0.45);
}

.start span {
  animation: blink 1.25s steps(1) infinite;
}

.foot {
  position: relative;
  z-index: 5;
  padding: 0 1.4rem 1.3rem;
  text-align: center;
  color: #7d86a8;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0.15; }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

@media (max-width: 640px) {
  .hud {
    padding-inline: 1rem;
    font-size: 0.7rem;
  }

  .orbit {
    width: 13.5rem;
    height: 13.5rem;
    margin-left: -6.75rem;
  }

  .start {
    letter-spacing: 0.18em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .led,
  .orbit,
  .emblem,
  .start span {
    animation: none;
  }
}