:root {
  --bg: #05060b;
  --bg-elevated: rgba(14, 18, 28, 0.84);
  --bg-strong: rgba(7, 10, 18, 0.96);
  --panel-border: rgba(128, 202, 255, 0.18);
  --panel-border-strong: rgba(255, 255, 255, 0.14);
  --text: #f4f7ff;
  --text-muted: rgba(244, 247, 255, 0.72);
  --accent: #35d6ff;
  --accent-2: #ff5c8a;
  --accent-3: #9b7cff;
  --success: #3fffb1;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.38);
  --font-display: "Trebuchet MS", "Segoe UI Semibold", sans-serif;
  --font-body: "Verdana", "Geneva", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at top left, rgba(53, 214, 255, 0.14), transparent 32%),
    radial-gradient(circle at bottom right, rgba(155, 124, 255, 0.18), transparent 38%),
    linear-gradient(180deg, #05060b 0%, #090d17 48%, #05060b 100%);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.55;
}

body.menu-open {
  overflow: hidden;
}

.sky {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  overflow: hidden;
}

.sky__stars {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 8% 12%, rgba(255, 255, 255, 0.85) 0 1px, transparent 1.5px),
    radial-gradient(circle at 18% 72%, rgba(255, 255, 255, 0.55) 0 1px, transparent 1.5px),
    radial-gradient(circle at 29% 32%, rgba(255, 255, 255, 0.9) 0 1.2px, transparent 1.8px),
    radial-gradient(circle at 42% 18%, rgba(255, 255, 255, 0.45) 0 1px, transparent 1.4px),
    radial-gradient(circle at 60% 78%, rgba(255, 255, 255, 0.75) 0 1px, transparent 1.6px),
    radial-gradient(circle at 72% 28%, rgba(255, 255, 255, 0.55) 0 1px, transparent 1.6px),
    radial-gradient(circle at 84% 64%, rgba(255, 255, 255, 0.85) 0 1px, transparent 1.5px),
    radial-gradient(circle at 92% 22%, rgba(255, 255, 255, 0.55) 0 1.2px, transparent 1.8px);
  background-size: 520px 520px;
  opacity: 0.85;
  animation: drift 160s linear infinite;
}

.sky__glow {
  position: absolute;
  width: 38rem;
  height: 38rem;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.25;
}

.sky__glow--left {
  top: -8rem;
  left: -8rem;
  background: rgba(53, 214, 255, 0.7);
}

.sky__glow--right {
  right: -10rem;
  bottom: -12rem;
  background: rgba(155, 124, 255, 0.6);
}

.shell {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(5, 6, 11, 0.74);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.site-header.is-scrolled {
  background: rgba(5, 6, 11, 0.92);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: 5.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  color: var(--text);
  text-decoration: none;
}

.brand__mark {
  display: inline-grid;
  place-items: center;
  width: 2.85rem;
  height: 2.85rem;
  border-radius: 0.9rem;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: 0.08em;
  color: #08101a;
  background: linear-gradient(135deg, var(--accent), var(--accent-3));
  box-shadow: 0 0 30px rgba(53, 214, 255, 0.25);
}

.brand__copy {
  display: grid;
  gap: 0.15rem;
}

.brand__copy strong,
.hero h1,
.section h2,
.panel h3,
.button,
.eyebrow,
.hero__stats dd {
  font-family: var(--font-display);
}

.brand__copy strong {
  letter-spacing: 0.12em;
  font-size: 0.95rem;
}

.brand__copy span {
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav {
  margin-left: auto;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.nav__links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
}

.nav__links a:hover,
.nav__links a:focus-visible,
.brand:hover,
.brand:focus-visible {
  color: var(--accent);
}

.menu-toggle {
  display: none;
  margin-left: auto;
  padding: 0.65rem 0.95rem;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font: inherit;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.15rem;
  padding: 0.8rem 1.2rem;
  border-radius: 999px;
  border: 1px solid transparent;
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease, box-shadow 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button--primary {
  color: #07111a;
  background: linear-gradient(135deg, var(--accent), #89efff);
  box-shadow: 0 16px 40px rgba(53, 214, 255, 0.22);
}

.button--ghost {
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.04);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.9fr);
  gap: 2rem;
  align-items: start;
  padding: 5.5rem 0 4.5rem;
}

.hero__copy {
  padding-top: 2rem;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--accent);
  font-size: 0.82rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero h1,
.section h2 {
  margin: 0;
  line-height: 0.95;
  letter-spacing: -0.03em;
}

.hero h1 {
  max-width: 12ch;
  font-size: clamp(3rem, 8vw, 6.6rem);
}

.hero__lede,
.section__intro p,
.panel p,
.feature-list,
.signal-list {
  color: var(--text-muted);
}

.hero__lede {
  max-width: 60ch;
  margin: 1.4rem 0 0;
  font-size: 1.05rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 2rem;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.8rem;
  margin: 2.2rem 0 0;
}

.hero__stats div,
.panel,
.site-header,
.menu-toggle {
  border: 1px solid var(--panel-border);
}

.hero__stats div {
  padding: 0.9rem 1rem;
  border-radius: 1rem;
  background: rgba(14, 18, 28, 0.72);
}

.hero__stats dt {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero__stats dd {
  margin: 0.4rem 0 0;
  font-size: 1.05rem;
}

.panel {
  background: var(--bg-elevated);
  border-radius: 1.4rem;
  box-shadow: var(--shadow);
}

.panel--hero {
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
}

.panel--hero::after,
.panel--cta::after {
  content: "";
  position: absolute;
  inset: auto -10% -50% auto;
  width: 18rem;
  height: 18rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 92, 138, 0.22), transparent 68%);
  pointer-events: none;
}

.panel__header {
  display: grid;
  gap: 0.35rem;
}

.panel__kicker {
  color: var(--accent);
  text-transform: uppercase;
  font-size: 0.76rem;
  letter-spacing: 0.12em;
}

.signal-list,
.feature-list {
  margin: 1.3rem 0 0;
  padding: 0;
  list-style: none;
}

.signal-list li,
.feature-list li {
  padding: 0.9rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.signal-list__label {
  display: block;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(244, 247, 255, 0.52);
}

.signal-list__value {
  display: block;
  margin-top: 0.35rem;
}

.hero__panel-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.25rem;
}

.status-pill {
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: rgba(255, 255, 255, 0.06);
}

.status-pill--live {
  color: var(--success);
}

.section {
  padding: 1.5rem 0 4rem;
}

.section__intro {
  display: grid;
  gap: 0.8rem;
  max-width: 58rem;
  margin-bottom: 1.6rem;
}

.grid {
  display: grid;
  gap: 1rem;
}

.grid--three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid--split {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card,
.mode-card,
.ops-panel,
.panel--cta {
  padding: 1.3rem 1.35rem;
}

.stack {
  padding: 1.35rem;
}

.panel h3 {
  margin: 0;
  font-size: 1.2rem;
}

.panel p,
.feature-list {
  margin-top: 0.9rem;
}

.section--play {
  padding-bottom: 5.5rem;
}

.panel--cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.4rem;
  background: linear-gradient(145deg, rgba(10, 14, 24, 0.96), rgba(16, 22, 34, 0.92));
  border-color: var(--panel-border-strong);
}

.panel--cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

@keyframes drift {
  from { transform: translateY(0); }
  to { transform: translateY(-520px); }
}

@media (max-width: 960px) {
  .hero,
  .grid--three,
  .grid--split,
  .panel--cta {
    grid-template-columns: 1fr;
    display: grid;
  }

  .hero__stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-header__cta {
    display: none;
  }

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

  .nav {
    margin-left: 0;
  }

  .nav__links {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 1rem;
    right: 1rem;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.6rem;
    border-radius: 1rem;
    background: var(--bg-strong);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: var(--shadow);
  }

  .nav__links.is-open {
    display: flex;
  }

  .nav__links a {
    padding: 0.85rem 0.9rem;
    border-radius: 0.8rem;
  }

  .nav__links a:hover,
  .nav__links a:focus-visible {
    background: rgba(255, 255, 255, 0.06);
  }
}

@media (max-width: 640px) {
  .hero {
    padding-top: 4rem;
  }

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

  .button {
    width: 100%;
  }

  .panel--cta__actions {
    width: 100%;
  }
}