:root {
  --brand-1: #7c3aed;
  --brand-2: #06b6d4;
  --brand-3: #22c55e;
  --brand-4: #f59e0b;
  --text: #111827;
  --muted: #6b7280;
  --bg: #ffffff;
  --radius: 1rem;
  --shadow: 0 1rem 2rem rgba(0, 0, 0, 0.08);
  --focus: 0 0 0 0.25rem rgba(124, 58, 237, 0.35);
  font-synthesis-weight: none;
}

html,
body {
  font-family: "Inter", "Fira Sans", system-ui, -apple-system, "Segoe UI",
    Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif;
  color: var(--text);
  background: var(--bg);
}

.navbar-brand .brand-dot {
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 50%;
  display: inline-block;
  background: linear-gradient(135deg, var(--brand-1), var(--brand-2));
  box-shadow: 0 0 0.75rem rgba(124, 58, 237, 0.6);
}

.nav-link.active {
  font-weight: 700;
  color: var(--brand-1) !important;
}

.hero-gradient {
  background: radial-gradient(
      1200px 600px at 20% 10%,
      rgba(124, 58, 237, 0.45),
      transparent 60%
    ),
    radial-gradient(
      900px 500px at 80% 20%,
      rgba(6, 182, 212, 0.45),
      transparent 60%
    ),
    linear-gradient(135deg, #5b21b6, #0ea5e9);
}

.gradient-1 {
  background: linear-gradient(135deg, var(--brand-1), #4f46e5);
}
.gradient-2 {
  background: linear-gradient(135deg, var(--brand-2), #14b8a6);
}
.gradient-3 {
  background: linear-gradient(135deg, var(--brand-3), #16a34a);
}
.gradient-4 {
  background: linear-gradient(135deg, var(--brand-4), #f97316);
}

.callout {
  background: linear-gradient(135deg, #4f46e5, #0ea5e9);
}

.step-badge {
  min-width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  display: inline-grid;
  place-items: center;
  background: linear-gradient(135deg, var(--brand-1), var(--brand-2));
  color: #fff;
  font-weight: 700;
  box-shadow: var(--shadow);
}

.pricing-card {
  border-radius: var(--radius);
}
.card {
  border-radius: var(--radius);
}

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

.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;
}