:root {
  color-scheme: dark;
  --bg: #0d141a;
  --surface: #121a22;
  --panel: #1b2630;
  --accent: #4f9dff;
  --accent-2: #2a6bd4;
  --accent-soft: rgba(79, 157, 255, 0.2);
  --text: #e6edf3;
  --muted: #98a4b3;
  --border: rgba(255, 255, 255, 0.1);
  --shadow: 0 26px 60px rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  padding: 36px 20px 64px;
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  display: grid;
  place-items: center;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(79, 157, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79, 157, 255, 0.08) 1px, transparent 1px);
  background-size: 120px 120px;
  opacity: 0.08;
  pointer-events: none;
  z-index: -1;
}

.backdrop {
  position: fixed;
  inset: -20%;
  background:
    radial-gradient(600px 600px at 15% 20%, rgba(79, 157, 255, 0.28), transparent 70%),
    radial-gradient(700px 700px at 85% 20%, rgba(42, 107, 212, 0.26), transparent 70%),
    radial-gradient(700px 700px at 50% 85%, rgba(90, 200, 255, 0.2), transparent 72%);
  overflow: hidden;
  z-index: -2;
}

.backdrop::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    120deg,
    rgba(79, 157, 255, 0.22),
    rgba(42, 107, 212, 0.12),
    rgba(13, 20, 26, 0.2)
  );
  background-size: 200% 200%;
  opacity: 0.7;
}

.backdrop::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(13, 20, 26, 0.95), rgba(13, 20, 26, 0.88));
  animation: shadePulse 10s ease-in-out infinite;
}

.splash {
  width: min(920px, 92vw);
  padding: 46px 38px 40px;
  border-radius: 28px;
  background: rgba(18, 26, 34, 0.75);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  text-align: center;
  display: grid;
  gap: 22px;
  backdrop-filter: blur(18px);
}

.logo-shell {
  width: 140px;
  height: 140px;
  margin: 0 auto;
  border-radius: 28px;
  background: rgba(27, 38, 48, 0.9);
  border: 1px solid rgba(79, 157, 255, 0.25);
  display: grid;
  place-items: center;
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.4);
  position: relative;
  overflow: hidden;
}

.logo-shell::after {
  content: "";
  position: absolute;
  inset: -20%;
  background: radial-gradient(circle, rgba(79, 157, 255, 0.3), transparent 60%);
  opacity: 0.4;
}

.logo {
  width: 92px;
  height: 92px;
  position: relative;
  z-index: 1;
}

h1 {
  margin: 0;
  font-size: clamp(32px, 6vw, 52px);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.subtitle {
  margin: 0 auto;
  max-width: 760px;
  font-size: 16px;
  line-height: 1.7;
  color: var(--muted);
}

.features {
  margin: 0 auto;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
  max-width: 640px;
}

.feature {
  padding: 12px 16px;
  border-radius: 14px;
  background: rgba(15, 21, 28, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 14px;
  line-height: 1.5;
  width: auto;
  text-align: center !important;
}

.feature-icon {
  padding-right: 10px;
}

.link-row {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.icon-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 999px;
  text-decoration: none;
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(79, 157, 255, 0.12);
  font-size: 14px;
  font-weight: 600;
  transition: transform 0.2s ease, border 0.2s ease, background 0.2s ease;
}

.icon-link:hover {
  transform: translateY(-1px);
  border-color: rgba(79, 157, 255, 0.5);
  background: rgba(79, 157, 255, 0.22);
}

.icon {
  width: 18px;
  height: 18px;
  display: block;
}

@keyframes shadePulse {
  0%,
  100% {
    opacity: 0.98;
  }
  50% {
    opacity: 0.4;
  }
}

@media (max-width: 640px) {
  .splash {
    padding: 40px 22px 34px;
  }

  .subtitle {
    font-size: 15px;
  }

  .feature {
    font-size: 13px;
  }
}