:root {
  --ssrf-brand-accent: #1b6b4a;
  --ssrf-brand-oss: #0e7490;
  --ssrf-brand-panel: rgb(27 107 74 / .06);
}

.hero-atmosphere {
  position: relative;
  isolation: isolate;
  margin: 0 0 1.5rem;
  overflow: hidden;
  border: 1px solid var(--md-default-fg-color--lighter);
  border-radius: .25rem;
  background: var(--ssrf-brand-panel);
}

.hero-atmosphere > [aria-hidden="true"].hero-atmosphere__glow {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(ellipse 46% 68% at 86% 22%, rgb(6 182 212 / .11), transparent 72%);
}

[data-atmosphere="project"] > [aria-hidden="true"].hero-atmosphere__glow::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .08;
  background: radial-gradient(ellipse 30% 42% at 86% 22%, var(--ssrf-brand-accent), transparent 72%);
}

.hero-atmosphere > :not([aria-hidden="true"].hero-atmosphere__glow) {
  position: relative;
  z-index: 1;
}

.oss-identity {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: 1rem;
}

.oss-identity__mark {
  width: 2rem;
  height: 2rem;
  flex: 0 0 auto;
}

.oss-identity__copy {
  margin: 0;
  color: var(--md-default-fg-color--light);
  font-size: .78rem;
}

.oss-identity__copy a {
  color: var(--ssrf-brand-oss);
  font-weight: 700;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ssrf-brand-accent: #6ee7b7;
    --ssrf-brand-oss: #22d3ee;
    --ssrf-brand-panel: rgb(110 231 183 / .08);
  }

  .hero-atmosphere > [aria-hidden="true"].hero-atmosphere__glow {
    background: radial-gradient(ellipse 46% 68% at 86% 22%, rgb(34 211 238 / .10), transparent 72%);
  }
}

/* Material can select its palette independently of the operating-system theme. */
body[data-md-color-scheme="slate"] {
  --ssrf-brand-accent: #6ee7b7;
  --ssrf-brand-oss: #22d3ee;
  --ssrf-brand-panel: rgb(110 231 183 / .08);
}

body[data-md-color-scheme="slate"] .hero-atmosphere > [aria-hidden="true"].hero-atmosphere__glow {
  background: radial-gradient(ellipse 46% 68% at 86% 22%, rgb(34 211 238 / .10), transparent 72%);
}

@media (forced-colors: active), print {
  .hero-atmosphere > [aria-hidden="true"].hero-atmosphere__glow,
  .hero-atmosphere > [aria-hidden="true"].hero-atmosphere__glow::after {
    display: none;
  }
}