:root {
  --nt-teal: #00d1b2;
  --nt-mid: #0f2a3f;
  --nt-ink: #0a1622;
  --nt-lime: #d7ff4d;
  --nt-mist: #f3faf8;
}

html,
body {
  font-family: "Source Sans 3", system-ui, -apple-system, Segoe UI, Roboto,
    "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif;
  color: #1f2a37;
  background: #ffffff;
}
.hero-title {
  font-family: "Poppins", Georgia, "Times New Roman", serif;
}

.bg-nt-mid {
  background: linear-gradient(135deg, var(--nt-mid), #103451);
}

.text-nt-lime {
  color: var(--nt-lime) !important;
}
.btn-nt-lime {
  --bs-btn-bg: var(--nt-lime);
  --bs-btn-border-color: var(--nt-lime);
  --bs-btn-hover-bg: #c3f237;
  --bs-btn-hover-border-color: #c3f237;
  color: #0b0b0b;
}
.btn-outline-nt-lime {
  --bs-btn-color: var(--nt-lime);
  --bs-btn-border-color: var(--nt-lime);
}

.hero-nt {
  background: radial-gradient(
      1000px 520px at 10% 10%,
      rgba(215, 255, 77, 0.18),
      transparent 60%
    ),
    radial-gradient(
      900px 520px at 80% 10%,
      rgba(0, 209, 178, 0.22),
      transparent 55%
    ),
    linear-gradient(135deg, #103451, var(--nt-mid));
}
.logo-spark {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  display: inline-block;
  background: radial-gradient(
    circle at 35% 35%,
    var(--nt-lime),
    var(--nt-teal)
  );
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.2);
}
.bg-nt-mist {
  background: linear-gradient(180deg, #ffffff, var(--nt-mist));
}

.card {
  border-radius: 1rem;
}
.course-card:hover {
  transform: translateY(-2px);
  transition: 0.2s ease;
}
.icon-card {
  padding: 1rem;
  border: 1px solid #e6e9ee;
  border-radius: 1rem;
  background: #fff;
  text-align: center;
}
.icon-card i {
  font-size: 2rem;
  color: var(--nt-teal);
}

.step {
  position: relative;
  padding-left: 2.5rem;
}
.step-badge {
  position: absolute;
  left: 0;
  top: 0.2rem;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--nt-lime);
  color: #111;
  font-weight: 800;
}

.pricing-card .card-header {
  border-bottom: 0;
}
.border-nt-lime {
  border: 1.5px solid var(--nt-lime) !important;
}
.bg-nt-lime {
  background: var(--nt-lime) !important;
}

.faq-item summary {
  cursor: pointer;
}
.faq-item[open] summary {
  color: var(--nt-teal);
}

.timeline .badge {
  background: var(--nt-lime);
  color: #111;
}

a {
  color: var(--nt-teal);
}
a:hover {
  color: #0aa38e;
}

.visually-hidden-focusable:focus {
  clip: auto;
  width: auto;
  height: auto;
}