:root {
  --ax-indigo: #1e40af;
  --ax-cyan: #0891b2;
  --ax-fuchsia: #c026d3;
  --ax-lime: #65a30d;
  --ax-slate: #0f172a;
  --ax-ice: #f1f5f9;
  --ax-text: #0b1220;
  --ax-muted: #6b7280;

  --radius: 1rem;
  --shadow: 0 1rem 2rem rgba(0, 0, 0, 0.08);
  --focus: 0 0 0 0.25rem rgba(8, 145, 178, 0.35);
}

html,
body {
  font-family: "Rubik", "Source Sans 3", system-ui, -apple-system, "Segoe UI",
    Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif;
  color: var(--ax-text);
  background: #fff;
}

.navbar-brand .brand-dot {
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 50%;
  display: inline-block;
  background: conic-gradient(
    from 90deg,
    var(--ax-indigo),
    var(--ax-cyan),
    var(--ax-fuchsia),
    var(--ax-lime)
  );
  box-shadow: 0 0 0.75rem rgba(8, 145, 178, 0.6);
}

.nav-link.active {
  font-weight: 700;
  color: var(--ax-indigo) !important;
}

.hero {
  color: #fff;
  background: radial-gradient(
      900px 500px at 15% 20%,
      rgba(192, 38, 211, 0.3),
      transparent 60%
    ),
    radial-gradient(
      700px 400px at 85% 15%,
      rgba(8, 145, 178, 0.35),
      transparent 60%
    ),
    linear-gradient(135deg, #0b3aa7, #0aa6c0);
}

.card {
  border-radius: var(--radius);
}
.btn:focus,
.form-control:focus,
.form-select:focus,
.form-check-input:focus {
  box-shadow: var(--focus);
}

.grad-1 {
  background: linear-gradient(135deg, var(--ax-indigo), #3b82f6);
  color: #fff;
}
.grad-2 {
  background: linear-gradient(135deg, var(--ax-cyan), #22d3ee);
  color: #0b1220;
}
.grad-3 {
  background: linear-gradient(135deg, var(--ax-fuchsia), #a855f7);
  color: #fff;
}
.grad-4 {
  background: linear-gradient(135deg, var(--ax-lime), #a3e635);
  color: #0b1220;
}

.step-badge {
  min-width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  display: inline-grid;
  place-items: center;
  background: linear-gradient(135deg, var(--ax-indigo), var(--ax-cyan));
  color: #fff;
  font-weight: 700;
  box-shadow: var(--shadow);
}

.toc-link {
  text-decoration: none;
}
.toc-link:hover {
  text-decoration: underline;
}

.visually-hidden-focusable:not(:focus):not(:focus-within) {
  position: absolute !important;
  width: 1px;
  height: 1px;
  margin: -1px;
  border: 0;
  padding: 0;
  white-space: nowrap;
  clip-path: inset(50%);
  clip: rect(0 0 0 0);
  overflow: hidden;
}

.price-card .display-6 {
  letter-spacing: -0.5px;
}

.callout {
  background: linear-gradient(135deg, #1e40af, #0891b2);
  color: #fff;
}