:root {
  color-scheme: dark;
  --bg: #05080d;
  --onyx: #0f141d;
  --onyx-strong: #090d14;
  --black-pearl: #171f2a;
  --text: #edf4ff;
  --text-muted: #9ba9bd;
  --border: rgba(145, 163, 186, 0.32);
  --border-soft: rgba(145, 163, 186, 0.2);
  --highlight: rgba(198, 215, 236, 0.8);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  width: 100%;
  height: 100%;
}

body {
  min-height: 100dvh;
  background:
    radial-gradient(circle at 18% 10%, rgba(126, 157, 194, 0.16), transparent 34%),
    radial-gradient(circle at 82% 92%, rgba(70, 88, 115, 0.22), transparent 44%),
    linear-gradient(180deg, rgba(8, 11, 16, 0.95), rgba(4, 6, 10, 0.98)),
    repeating-linear-gradient(0deg, rgba(130, 160, 190, 0.028) 0 1px, transparent 1px 44px),
    repeating-linear-gradient(90deg, rgba(130, 160, 190, 0.022) 0 1px, transparent 1px 44px),
    var(--bg);
  color: var(--text);
  font-family: 'Chakra Petch', 'Space Grotesk', 'IBM Plex Sans', 'Avenir Next', sans-serif;
  display: grid;
  grid-template-rows: 1fr auto;
  overflow: hidden;
}

.hero {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
  padding: clamp(22px, 4vh, 40px) 20px;
}

.hero-shell {
  width: min(720px, 100%);
  text-align: center;
  padding: clamp(28px, 4vw, 40px) clamp(20px, 3vw, 30px) clamp(24px, 3vw, 34px);
  border-radius: 24px;
  border: 1px solid var(--border);
  background:
    radial-gradient(circle at 100% 0%, rgba(116, 136, 164, 0.2), transparent 36%),
    linear-gradient(180deg, rgba(17, 20, 26, 0.97), rgba(10, 13, 19, 0.985)),
    rgba(12, 16, 21, 0.985);
  box-shadow:
    0 24px 62px rgba(0, 0, 0, 0.68),
    inset 0 1px 0 rgba(255, 255, 255, 0.05),
    inset 0 0 0 1px rgba(255, 255, 255, 0.02);
  position: relative;
  overflow: hidden;
}

.hero-shell::before {
  content: '';
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(185, 205, 229, 0.55), transparent);
}

.hero-shell::after {
  content: '';
  position: absolute;
  inset: auto 10% 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(185, 205, 229, 0.24), transparent);
}

.logo-frame {
  width: 102px;
  height: 102px;
  margin: 0 auto 22px;
  border-radius: 20px;
  border: 1px solid var(--border-soft);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.01)),
    rgba(255, 255, 255, 0.02);
  display: grid;
  place-items: center;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.logo {
  width: 72px;
  height: 72px;
}

.hero-kicker {
  margin-bottom: 10px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.24em;
  color: rgba(168, 185, 207, 0.7);
}

h1 {
  font-family: 'Rajdhani', 'Chakra Petch', sans-serif;
  font-size: clamp(2.2rem, 7vw, 4.1rem);
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  line-height: 1;
  margin-bottom: 12px;
}

.tagline {
  font-size: clamp(1rem, 2.3vw, 1.22rem);
  line-height: 1.55;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 28px;
}

.play-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 172px;
  min-height: 48px;
  padding: 10px 26px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #f1f7ff;
  background:
    linear-gradient(180deg, rgba(120, 139, 166, 0.38), rgba(66, 80, 99, 0.55)),
    rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(186, 205, 227, 0.36);
  border-radius: 999px;
  box-shadow:
    inset 0 1px 0 rgba(242, 248, 255, 0.18),
    0 12px 28px rgba(0, 0, 0, 0.45);
  text-decoration: none;
  transition: transform 140ms ease, border-color 140ms ease, filter 140ms ease;
}

.play-button:hover {
  transform: translateY(-1px);
  border-color: var(--highlight);
  filter: brightness(1.06);
}

.play-button:active {
  transform: translateY(0);
}

.hero-note {
  margin-top: 12px;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(160, 177, 198, 0.62);
}

footer {
  padding: 0 20px clamp(14px, 2.4vh, 18px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}

footer a {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid rgba(145, 163, 186, 0.26);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.012)),
    rgba(10, 13, 18, 0.58);
  color: rgba(184, 198, 217, 0.84);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: color 140ms ease, border-color 140ms ease;
}

footer a:hover {
  color: #f0f6ff;
  border-color: rgba(206, 222, 241, 0.48);
}

@media (max-width: 640px) {
  body {
    overflow: auto;
  }

  .hero {
    padding: 24px 14px;
  }

  .hero-shell {
    border-radius: 18px;
    padding: 30px 18px 26px;
  }

  .logo-frame {
    width: 92px;
    height: 92px;
    border-radius: 16px;
  }

  .logo {
    width: 64px;
    height: 64px;
  }

  .hero-kicker {
    font-size: 9px;
    letter-spacing: 0.2em;
  }

  footer a {
    min-height: 26px;
    padding: 0 10px;
    font-size: 10px;
  }
}