:root {
  color-scheme: dark;
  --bg: #101010;
  --panel: #151515;
  --text: #f3f3f3;
  --muted: #c9c9c9;
  --accent: #f0f0f0;
  --link: #9fcfff;
  --link-hover: #d5e8ff;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  color: var(--text);
  background: var(--bg);
  font-family: Verdana, Tahoma, "Trebuchet MS", sans-serif;
}

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

a:hover,
a:focus-visible {
  color: var(--link-hover);
}

.app-shell {
  flex: 1;
  display: flex;
  justify-content: center;
  padding: 1.25rem 1.5rem;
}

.site-footer {
  padding: 0 1.5rem 1.5rem;
}

.site-footer p {
  margin: 0 auto;
  width: min(100%, 72rem);
  padding-top: 0.85rem;
  border-top: 1px solid #2f2f2f;
  color: var(--muted);
  font-size: 0.95rem;
  text-align: center;
}

.hero {
  width: min(100%, 72rem);
  margin: auto 0;
  padding: 0.85rem 1rem;
  background: transparent;
}

.hero-header {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.site-badge {
  display: inline-block;
  width: min(8rem, 30vw);
  height: auto;
}

.hero h1 {
  margin: 0;
  color: var(--accent);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.2rem, 7vw, 4rem);
  line-height: 1.05;
  letter-spacing: 0.01em;
  text-shadow: 2px 2px 0 rgba(0, 0, 0, 0.45);
}

.hero h3 {
  margin: 0.45rem 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 2.4vw, 1.3rem);
  font-weight: 700;
}

.hero p {
  margin: 0.8rem 0 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.55;
  max-width: 62rem;
}

.hero a {
  font-weight: 700;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.16em;
}

.hero b {
  color: var(--text);
}

.hero hr {
  margin: 0.9rem 0;
  border: 0;
  border-top: 1px solid #2f2f2f;
}

.link-groups {
  display: grid;
  gap: 0.75rem;
}

.link-group {
  padding: 0;
}

.link-group h4 {
  margin: 0 0 0.5rem;
  color: var(--text);
  font-size: 1rem;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.link-group ul {
  margin: 0;
  padding-left: 1.25rem;
}

.link-group li + li {
  margin-top: 0.3rem;
}

@media (min-width: 900px) {
  .hero {
    padding: 1rem 1.2rem 1.1rem;
  }

  .hero-header {
    gap: 1.2rem;
  }

  .link-groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }

  .link-group:last-child {
    grid-column: 1 / -1;
  }

  .link-group:last-child ul {
    columns: 2;
    column-gap: 2rem;
  }

  .link-group:last-child li {
    break-inside: avoid;
  }
}

@media (max-width: 640px) {
  .app-shell {
    padding: 0.9rem 1rem;
  }

  .site-footer {
    padding: 0 1rem 1rem;
  }

  .hero {
    margin: 0;
  }

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