:root {
  --btf-ink: #0d1321;
  --btf-primary: #6c00ff;
  --btf-apple: #37d67a;
  --btf-sky: #00c2ff;
  --btf-peach: #ff8a5c;
  --btf-bg: #f5f7ff;
}

html,
body {
  font-family: "Nunito", system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  color: var(--btf-ink);
  background: #fff;
}

h1,
h2,
.navbar-brand,
.hero-title {
  font-family: "Rubik", "Nunito", "Segoe UI", Roboto, Arial, sans-serif;
  letter-spacing: -0.01em;
}

.bg-btf-gradient {
  background: linear-gradient(135deg, var(--btf-primary), var(--btf-sky));
}
.bg-hero-btf {
  background: radial-gradient(
      1200px 520px at -10% -20%,
      rgba(108, 0, 255, 0.28),
      transparent
    ),
    radial-gradient(
      1200px 520px at 120% 120%,
      rgba(55, 214, 122, 0.25),
      transparent
    ),
    linear-gradient(135deg, var(--btf-primary), var(--btf-sky));
}
.bg-btf-soft {
  background: linear-gradient(180deg, #fff, var(--btf-bg));
}

.card {
  border-radius: 1rem;
}
img.rounded-4 {
  border-radius: 1rem !important;
}
.icon-badge {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: rgba(0, 194, 255, 0.14);
  color: var(--btf-sky);
  font-size: 1.25rem;
}

.timeline {
  border-left: 2px dashed rgba(13, 19, 33, 0.15);
  padding-left: 1rem;
}
.timeline li {
  position: relative;
  margin-bottom: 1rem;
}
.timeline-dot {
  position: absolute;
  left: -10px;
  top: 0.4rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--btf-apple);
  box-shadow: 0 0 0 4px rgba(55, 214, 122, 0.22);
}

.faq-item summary {
  cursor: pointer;
  padding: 0.75rem 1rem;
  border: 1px solid rgba(13, 19, 33, 0.08);
  border-radius: 0.75rem;
  background: #fff;
  transition: box-shadow 0.2s, border-color 0.2s;
}
.faq-item[open] summary {
  box-shadow: 0 0 0 0.25rem rgba(108, 0, 255, 0.18);
  border-color: var(--btf-primary);
}
.faq-item > div {
  padding: 0.75rem 1rem 0.5rem 1rem;
  color: #475569;
}

.btn-primary {
  --bs-btn-bg: var(--btf-primary);
  --bs-btn-border-color: var(--btf-primary);
  --bs-btn-hover-bg: #5b00db;
  --bs-btn-hover-border-color: #5b00db;
}
.btn-contrast {
  --bs-btn-bg: #fff;
  --bs-btn-color: var(--btf-ink);
  --bs-btn-border-color: #fff;
  --bs-btn-hover-bg: #f1f3fe;
  --bs-btn-hover-border-color: #f1f3fe;
}

.visually-hidden-focusable:active,
.visually-hidden-focusable:focus {
  clip: auto;
  width: auto;
  height: auto;
  margin: 0;
  overflow: visible;
  position: static;
}