:root {
  color-scheme: dark;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #0f1418;
  color: #e7ecef;
  --primary: #0ec5b6;
  --primary-2: #5be7aa;
  --card: #151c21;
  --border: #243037;
  --muted: #9cacb4;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(14, 197, 182, 0.13), transparent 32rem),
    linear-gradient(180deg, #081014 0%, #0f1418 52%, #0a0d10 100%);
}

body {
  min-width: 320px;
  margin: 0;
}

.page-shell {
  width: min(100%, 760px);
  margin: 0 auto;
  padding: 32px 18px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  color: #e7ecef;
  text-decoration: none;
}

.mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #061214;
  font-size: 1.7rem;
  font-weight: 900;
  line-height: 1;
}

.brand-text {
  display: block;
}

.brand strong {
  display: block;
  color: #e7ecef;
  font-size: 1.65rem;
  line-height: 1;
}

.brand-text span {
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 750;
  text-transform: uppercase;
}

.play-link,
.primary-link {
  display: inline-grid;
  min-height: 44px;
  place-items: center;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #061214;
  font-weight: 850;
  padding: 0 16px;
  text-decoration: none;
  text-transform: uppercase;
}

.page-card {
  border: 1px solid rgba(92, 116, 126, 0.45);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(21, 28, 33, 0.96), rgba(12, 17, 21, 0.98)),
    var(--card);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
  padding: 30px;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 14px;
  font-size: clamp(2rem, 8vw, 4rem);
  line-height: 1;
}

h2 {
  margin: 28px 0 10px;
  color: var(--primary);
  font-size: 1.05rem;
  text-transform: uppercase;
}

p,
li {
  color: #d9e2e6;
  font-size: 1.05rem;
  line-height: 1.65;
}

.lede {
  color: var(--muted);
  font-size: 1.18rem;
}

ul,
ol {
  padding-left: 1.25rem;
}

a {
  color: var(--primary);
}

.page-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 18px;
  margin-top: 22px;
  color: var(--muted);
  font-size: 0.9rem;
}

.page-footer a {
  color: inherit;
  text-decoration: none;
}

.page-footer a:hover {
  color: var(--primary);
}

@media (max-width: 560px) {
  .page-shell {
    padding-top: 22px;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .page-card {
    padding: 22px;
  }
}