:root {
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #0f172a;
  color: #e2e8f0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: #0f172a;
  color: #e2e8f0;
  background:
    radial-gradient(circle at top, rgba(56, 189, 248, 0.25), transparent 35%),
    linear-gradient(180deg, #0f172a 0%, #020617 100%);
}

.page {
  width: min(960px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 3rem;
}

.hero {
  margin-bottom: 1.5rem;
}

.eyebrow {
  margin: 0 0 0.5rem;
  color: #38bdf8;
  font-size: 0.875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2.25rem, 7vw, 4rem);
}

.access {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 44px;
  margin-top: 0.5rem;
  color: #cbd5e1;
  font-size: 0.8125rem;
}

.access[hidden] {
  display: none;
}

.access-dot {
  flex: 0 0 6px;
  height: 6px;
  border-radius: 50%;
  background: #94a3b8;
}

.access[data-state="reachable"] .access-dot {
  background: #4ade80;
}

.access button {
  min-width: 44px;
  min-height: 44px;
  padding: 0 0.25rem;
  border: 0;
  background: transparent;
  color: #38bdf8;
  font: inherit;
  text-decoration: underline;
  text-underline-offset: 0.18em;
  cursor: pointer;
}

.access button:disabled {
  color: #94a3b8;
  cursor: default;
}

.access button:focus-visible {
  outline: 2px solid #38bdf8;
  outline-offset: 0;
  border-radius: 4px;
}

.section-heading {
  margin: 0 0 0.9rem;
  color: #cbd5e1;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.card-grid li {
  margin: 0;
}

.card {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1rem;
  border: 1px solid rgba(148, 163, 184, 0.25);
  border-radius: 1rem;
  background: rgba(15, 23, 42, 0.72);
  box-shadow: inset 3px 0 0 rgba(56, 189, 248, 0.45);
  color: inherit;
  text-decoration: none;
  font-size: 1.1rem;
  font-weight: 600;
}

.card-title {
  font-size: 1.1rem;
  font-weight: 700;
}

.card-tagline {
  color: #cbd5e1;
  font-size: 0.85rem;
  font-weight: 400;
  line-height: 1.4;
}

.card-meta {
  color: #38bdf8;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.card:hover,
.card:active,
.card:focus-visible {
  border-color: rgba(56, 189, 248, 0.8);
  background: rgba(30, 41, 59, 0.9);
}

.card:active {
  transform: none;
}

.card:focus-visible {
  outline: 2px solid #38bdf8;
  outline-offset: 3px;
}

@media (prefers-reduced-motion: no-preference) {
  .card {
    transition: transform 120ms ease, border-color 120ms ease, background 120ms ease;
  }

  .card:hover,
  .card:focus-visible {
    transform: translateY(-2px);
  }
}

@media (min-width: 640px) {
  .page {
    padding: 4rem 0;
  }

  .hero {
    margin-bottom: 2rem;
  }

  .card-grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
  }

  .card {
    gap: 0.5rem;
    padding: 1.25rem;
  }

  .card-tagline,
  .card-meta {
    font-size: 0.9rem;
  }
}