:root {
  color-scheme: dark;
  --bg: #070a12;
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.74);
  --muter: rgba(255, 255, 255, 0.55);
}

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

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji",
    "Segoe UI Emoji";
  color: var(--text);
  background-color: var(--bg);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(1200px 700px at 18% 8%, rgba(110, 231, 255, 0.14), transparent 60%),
    radial-gradient(900px 600px at 82% 30%, rgba(180, 255, 101, 0.12), transparent 60%),
    linear-gradient(180deg, rgba(7, 10, 18, 0.62), rgba(7, 10, 18, 0.92)),
    url("./background.png");
  background-size: cover;
  background-position: center;
  filter: saturate(1.06) contrast(1.05);
  z-index: -3;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(1200px 700px at 50% 110%, rgba(0, 0, 0, 0.65), transparent 55%),
    radial-gradient(900px 500px at 50% -10%, rgba(0, 0, 0, 0.55), transparent 55%);
  z-index: -2;
  pointer-events: none;
}

#particles {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  opacity: 0.85;
}

.stage {
  min-height: 100%;
  display: grid;
  place-items: center;
  padding: clamp(18px, 3vw, 44px);
  text-align: center;
}

.hero {
  width: min(920px, 100%);
  display: grid;
  justify-items: center;
  gap: 14px;
}

.logo {
  width: clamp(220px, 52vw, 420px);
  height: auto;
  filter: drop-shadow(0 18px 42px rgba(0, 0, 0, 0.5));
  transform: translateZ(0);
}

h1 {
  margin: 6px 0 4px;
  font-size: clamp(30px, 5.6vw, 60px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  font-weight: 800;
  text-shadow: 0 18px 44px rgba(0, 0, 0, 0.55);
}

.ellipsis {
  display: inline-block;
  animation: blink 1.35s steps(2, end) infinite;
  opacity: 0.9;
}

p {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(14px, 2.15vw, 18px);
  line-height: 1.6;
  color: var(--muted);
  text-shadow: 0 10px 28px rgba(0, 0, 0, 0.4);
}

.actions {
  margin-top: clamp(10px, 2.6vw, 18px);
  display: grid;
  justify-items: center;
  gap: 12px;
  width: 100%;
}

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: min(320px, 100%);
  padding: 14px 16px;
  border-radius: 16px;
  text-decoration: none;
  color: rgba(255, 255, 255, 0.95);
  font-weight: 800;
  letter-spacing: 0.2px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background:
    linear-gradient(135deg, rgba(88, 101, 242, 0.92), rgba(110, 231, 255, 0.2)),
    rgba(0, 0, 0, 0.18);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.45);
  transform: translateZ(0);
  transition: transform 160ms ease, filter 160ms ease, border-color 160ms ease;
}

.btn:hover {
  transform: translateY(-1px);
  filter: brightness(1.05);
  border-color: rgba(255, 255, 255, 0.22);
}

.btn:active {
  transform: translateY(0px);
  filter: brightness(0.98);
}

.btn:focus-visible {
  outline: 3px solid rgba(110, 231, 255, 0.55);
  outline-offset: 3px;
}

.btnIcon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btnGlow {
  position: absolute;
  inset: -2px;
  border-radius: 18px;
  background: radial-gradient(800px 140px at 20% 0%, rgba(110, 231, 255, 0.22), transparent 60%);
  opacity: 0.75;
  pointer-events: none;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 1), rgba(0, 0, 0, 0.35));
}

.meta {
  color: var(--muter);
  font-size: 13px;
  text-shadow: 0 10px 24px rgba(0, 0, 0, 0.35);
}

@keyframes blink {
  0%,
  49% {
    opacity: 0.15;
  }
  50%,
  100% {
    opacity: 0.95;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ellipsis {
    animation: none;
  }

  .btn {
    transition: none;
  }
}