*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: #0f1115;
  color: #e8eaed;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  font-size: 15px;
  line-height: 1.5;
}

a {
  color: inherit;
  text-decoration: none;
}

.hub {
  max-width: 960px;
  margin: 0 auto;
  padding: 48px 24px 64px;
}

.hub__header {
  margin-bottom: 40px;
}

.hub__title {
  margin: 0 0 8px;
  font-size: 28px;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.hub__subtitle {
  margin: 0;
  color: #8b95a8;
  font-size: 15px;
  max-width: 52ch;
}

.hub__note {
  margin: 16px 0 0;
  padding: 10px 14px;
  border: 1px solid #2a3140;
  border-radius: 6px;
  background: #14171d;
  color: #b8c0cc;
  font-size: 13px;
}

.hub__note code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  color: #9ec0ff;
}

.hub__section {
  margin-bottom: 32px;
}

.hub__section-title {
  margin: 0 0 12px;
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #6b7588;
}

.hub__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}

.hub-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 20px;
  border: 1px solid #2a3140;
  border-radius: 8px;
  background: #14171d;
  transition: border-color 0.15s, background 0.15s;
}

.hub-card:hover {
  border-color: #5b8def;
  background: #171b24;
}

.hub-card--primary {
  border-color: #3d5a8f;
  background: linear-gradient(145deg, #1a2438 0%, #14171d 100%);
}

.hub-card--primary:hover {
  border-color: #5b8def;
  background: linear-gradient(145deg, #1e2a42 0%, #171b24 100%);
}

.hub-card__label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #5b8def;
}

.hub-card__title {
  margin: 0;
  font-size: 17px;
  font-weight: 650;
}

.hub-card__desc {
  margin: 0;
  flex: 1;
  color: #8b95a8;
  font-size: 13px;
  line-height: 1.45;
}

.hub-card__path {
  margin: 4px 0 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 11px;
  color: #6b7588;
}

.hub__footer {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid #222938;
  color: #6b7588;
  font-size: 13px;
}

.hub__footer a {
  color: #7ea6f0;
}

.hub__footer a:hover {
  text-decoration: underline;
}