:root {
  color-scheme: light dark;
  --bg: #0f1419;
  --surface: #1a2332;
  --text: #e8eef7;
  --muted: #9aa8bc;
  --accent: #5b9cff;
  --accent-hover: #7ab0ff;
  --border: rgba(255, 255, 255, 0.08);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(1200px 600px at 10% -10%, #1e3a5f 0%, transparent 55%),
    radial-gradient(900px 500px at 90% 0%, #2a1f4e 0%, transparent 50%),
    var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.hub {
  max-width: 960px;
  margin: 0 auto;
  padding: 3rem 1.25rem 4rem;
}

.hub__eyebrow {
  margin: 0 0 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  color: var(--muted);
}

.hub__hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(2rem, 5vw, 2.75rem);
  line-height: 1.15;
}

.hub__lead {
  margin: 0;
  max-width: 42rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.hub__tools {
  margin-top: 3rem;
}

.hub__tools h2 {
  margin: 0 0 1rem;
  font-size: 1.125rem;
  color: var(--muted);
  font-weight: 600;
}

.tool-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

@media (min-width: 640px) {
  .tool-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  }
}

.tool-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.25rem 1.35rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.tool-card__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
}

.tool-card h3 {
  margin: 0;
  font-size: 1.15rem;
}

.tool-card__badge {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  background: rgba(91, 156, 255, 0.15);
  color: var(--accent);
  white-space: nowrap;
}

.tool-card p {
  margin: 0;
  color: var(--muted);
  flex: 1;
}

.tool-card__link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.tool-card__link:hover {
  color: var(--accent-hover);
}

.hub__footer {
  margin-top: 3rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.hub__footer code {
  font-size: 0.85em;
  color: var(--text);
}