:root {
  color-scheme: dark;
  --bg-1: #03070d;
  --bg-2: #07111d;
  --panel: rgba(2, 7, 14, 0.8);
  --line: rgba(225, 231, 239, 0.16);
  --text: #f5f6f8;
  --muted: rgba(232, 237, 245, 0.78);
  --accent: #74f0ff;
  --optical-shift: 0em;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: "Segoe UI", "Inter", "Arial", sans-serif;
  background:
    radial-gradient(1100px 700px at 15% -10%, #113154 0%, rgba(17, 49, 84, 0) 62%),
    radial-gradient(1100px 700px at 90% 120%, #0f2a43 0%, rgba(15, 42, 67, 0) 58%),
    linear-gradient(150deg, var(--bg-2) 0%, var(--bg-1) 55%, #02050a 100%);
  color: var(--text);
}

.page {
  position: relative;
  overflow: hidden;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: clamp(16px, 3vw, 32px);
}

.page::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  transform: translateX(-0.5px);
  background: linear-gradient(180deg, rgba(241, 247, 255, 0.18) 0%, rgba(241, 247, 255, 0) 100%);
  pointer-events: none;
  opacity: 0;
}

.page[data-center-guide="on"]::after {
  opacity: 0.9;
}

.panel {
  position: relative;
  z-index: 2;
  width: min(980px, 100%);
  display: grid;
  justify-items: center;
  row-gap: 0;
  text-align: center;
  padding: clamp(24px, 4.4vw, 56px);
  border: 1px solid var(--line);
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(8, 18, 32, 0.84) 0%, var(--panel) 100%),
    radial-gradient(540px 320px at 50% 0%, rgba(116, 240, 255, 0.12) 0%, rgba(116, 240, 255, 0) 72%);
  box-shadow:
    0 20px 70px rgba(0, 0, 0, 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(8px);
}

.glow {
  position: absolute;
  border-radius: 999px;
  filter: blur(48px);
  opacity: 0.28;
  pointer-events: none;
}

.glow-left {
  width: 280px;
  height: 280px;
  top: 10%;
  left: 5%;
  background: #34d8ff;
}

.glow-right {
  width: 280px;
  height: 280px;
  top: 10%;
  right: 5%;
  background: #41c2ff;
}

.hero {
  --logo-width: min(660px, 100%);
  --brand-size: clamp(2.7rem, 8.8vw, 6.9rem);
  --brand-shift: -10%;
  --meta-shift: 0%;
  --o-scale: 0.96;
  width: min(860px, 100%);
  display: grid;
  justify-items: center;
  margin-inline: auto;
}

.eyebrow {
  margin: 0;
  width: var(--logo-width);
  transform: translateX(var(--meta-shift));
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(228, 240, 252, 0.82);
}

.brand-row {
  margin: 18px auto 8px;
  width: var(--logo-width);
  display: grid;
  --left-side: 1fr;
  --right-side: 1fr;
  grid-template-columns: minmax(0, var(--left-side)) var(--o-size) minmax(0, var(--right-side));
  --o-size: calc(var(--brand-size) * var(--o-scale));
  align-items: center;
  justify-items: center;
  line-height: 1;
  transform: translateX(var(--brand-shift));
}

.brand-letter {
  font-size: var(--brand-size);
  font-weight: 800;
  color: #f5f6f8;
  font-family: "Segoe UI", "Inter", "Arial", sans-serif;
  letter-spacing: 0.015em;
}

.brand-letter-i {
  justify-self: end;
  padding-right: clamp(6px, 1vw, 14px);
}

.brand-letter-ta {
  justify-self: start;
  padding-left: clamp(6px, 1vw, 14px);
}

.brand-o {
  width: var(--o-size);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  border: clamp(7px, 0.95vw, 12px) solid #f5f6f8;
  background: #02060a;
  display: grid;
  place-items: center;
}

.brand-o img {
  width: 60%;
  height: auto;
  display: block;
}

.brand-line {
  margin: 10px auto 0;
  width: var(--logo-width);
  max-width: 100%;
  text-align: center;
  transform: translateX(var(--meta-shift));
  font-size: clamp(0.8rem, 1.5vw, 1.1rem);
  letter-spacing: 0.22em;
  color: rgba(235, 240, 248, 0.9);
}

.hero-title {
  margin: clamp(20px, 3vw, 28px) 0 0;
  width: fit-content;
  font-size: clamp(2.1rem, 6.3vw, 5rem);
  line-height: 0.96;
  letter-spacing: 0.01em;
  text-wrap: balance;
  transform: translateX(var(--optical-shift));
}

.subtitle {
  width: min(800px, 100%);
  margin: 14px auto 0;
  font-size: clamp(1rem, 1.8vw, 1.24rem);
  line-height: 1.58;
  color: var(--muted);
  text-wrap: pretty;
}

.feature-grid {
  margin-top: clamp(22px, 3vw, 34px);
  width: 100%;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.feature {
  text-align: left;
  background: rgba(7, 17, 28, 0.72);
  border: 1px solid rgba(233, 238, 245, 0.12);
  border-radius: 16px;
  padding: 14px 14px 13px;
}

.feature h2 {
  margin: 0;
  font-size: 0.98rem;
  color: #e8f7ff;
}

.feature p {
  margin: 7px 0 0;
  font-size: 0.9rem;
  line-height: 1.5;
  color: rgba(232, 239, 247, 0.78);
}

.launch-note {
  margin: 18px 0 0;
  width: 100%;
  font-size: clamp(0.92rem, 1.3vw, 1.02rem);
  color: rgba(223, 233, 244, 0.86);
  letter-spacing: 0.03em;
}

@media (max-width: 840px) {
  .hero {
    --logo-width: min(560px, 100%);
    --brand-size: clamp(2.35rem, 10.2vw, 5.4rem);
    --brand-shift: -10%;
    --meta-shift: 0%;
    --o-scale: 0.95;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .feature {
    text-align: center;
  }

  .brand-line {
    letter-spacing: 0.16em;
  }
}

@media (max-width: 520px) {
  .panel {
    border-radius: 20px;
    padding: 22px 16px 20px;
  }

  .hero {
    --logo-width: min(100%, 420px);
    --brand-size: clamp(1.95rem, 11vw, 3.15rem);
    --brand-shift: -10%;
    --meta-shift: 0%;
    --o-scale: 0.94;
  }

  .brand-row {
    margin-top: 14px;
    --left-side: 1fr;
    --right-side: 1fr;
  }

  .brand-line {
    width: var(--logo-width);
    max-width: 100%;
    letter-spacing: 0.13em;
  }

  .hero-title {
    transform: translateX(var(--optical-shift));
  }
}