:root {
  --bg: #1A1115;
  --fg: #EFE3CE;
  --muted: #847C71;
  --faint: #5C4D44;
  --accent: #C8987F;
  --panel: #22181F;
  --stroke: rgba(255,255,255,0.06);
}

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

html, body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'Inter', system-ui, -apple-system, 'Helvetica Neue', sans-serif;
  font-size: 1rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100%;
}

a { color: var(--accent); text-decoration: none; transition: color 0.15s ease; }
a:hover { color: var(--fg); }

.topnav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background: rgba(26, 17, 21, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--stroke);
  font-size: 0.85rem;
}

.topnav a { color: var(--muted); }
.topnav a:hover { color: var(--fg); }
.topnav .dot { color: var(--faint); }

main {
  max-width: 920px;
  margin: 0 auto;
  padding: 56px 32px 48px;
}

header {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-bottom: 36px;
}

.icon {
  width: 88px;
  height: 88px;
  border-radius: 20px;
  flex-shrink: 0;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.45);
}

.title-block { flex: 1; min-width: 0; }

h1 {
  font-size: 2.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 6px;
}

.tag {
  font-size: 1.05rem;
  color: var(--muted);
  font-weight: 400;
}

.hero {
  margin-bottom: 36px;
  border-radius: 14px;
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--stroke);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5);
}

.hero video {
  width: 100%;
  display: block;
  background: var(--bg);
}

.cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-bottom: 36px;
}

.col h2 {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}

.col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.col li {
  font-size: 0.95rem;
  color: var(--fg);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 22px;
  padding: 0 6px;
  background: var(--panel);
  border: 1px solid var(--stroke);
  border-radius: 5px;
  color: var(--fg);
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.78rem;
  font-weight: 500;
  line-height: 1;
}

kbd + kbd { margin-left: 0; }

.cta {
  text-align: center;
  margin-bottom: 40px;
}

.topnav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--stroke);
  margin-bottom: 0;
}

.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--fg);
  font-weight: 600;
  font-size: 0.95rem;
}
.nav-brand img {
  width: 24px;
  height: 24px;
  border-radius: 6px;
}

.nav-right {
  display: inline-flex;
  align-items: center;
  gap: 18px;
}

.nav-link {
  font-size: 0.875rem;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.15s;
}
.nav-link:hover { color: var(--fg); }

.nav-cta {
  display: inline-block;
  padding: 8px 18px;
  background: var(--accent);
  color: var(--bg);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: 999px;
  text-decoration: none;
  transition: filter 0.15s;
}
.nav-cta:hover { filter: brightness(1.08); color: var(--bg); }

.dl-pill {
  display: inline-block;
  padding: 14px 28px;
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 999px;
  color: var(--bg);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  text-decoration: none;
  transition: filter 0.15s;
}
.dl-pill:hover {
  filter: brightness(1.08);
}

.cta-note {
  margin-top: 12px;
  font-size: 0.8125rem;
  color: var(--muted);
}

footer {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 28px;
  border-top: 1px solid var(--stroke);
  font-size: 0.78rem;
  color: var(--muted);
}

footer a { color: var(--muted); }
footer a:hover { color: var(--fg); }

footer .copyright { color: var(--faint); }
footer .sep { color: var(--faint); opacity: 0.6; }

@media (max-width: 640px) {
  main { padding: 40px 20px 32px; }
  header { flex-direction: column; align-items: flex-start; gap: 14px; }
  h1 { font-size: 2rem; }
  .icon { width: 72px; height: 72px; border-radius: 16px; }
  .cols { grid-template-columns: 1fr; gap: 24px; }
  .topnav { gap: 8px; padding: 12px 16px; font-size: 0.8rem; }
  footer { gap: 6px; font-size: 0.72rem; }
}