/* Public instructor landing — reuses home.css cards; hero must not use #home (nav scroll-spy). */
.bi-hero {
  min-height: 88vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 7rem 6% 4rem;
  background: linear-gradient(160deg, #F0F7FF 0%, #FFFFFF 55%, #EEF4FF 100%);
}
.bi-hero::before {
  content: '';
  position: absolute; inset: 0; z-index: 0;
  background-image:
    linear-gradient(rgba(37,99,235,0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,0.055) 1px, transparent 1px);
  background-size: 48px 48px;
}
.bi-hero .hero-inner { position: relative; z-index: 1; }
.bi-hero-note {
  margin-top: 1.1rem;
  font-size: 0.84rem;
  color: var(--text-light);
}
.bi-hero-note a { color: var(--blue); font-weight: 700; text-decoration: none; }
.bi-hero-note a:hover { text-decoration: underline; }
.bi-section { padding: 4.5rem 6%; }
.bi-how { background: var(--off-white); }
.bi-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-top: 2rem;
}
.bi-step {
  background: #fff;
  border: 1.5px solid #E8F0FD;
  border-radius: 14px;
  padding: 1.4rem 1.25rem;
}
.bi-step-n {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--blue-soft); color: var(--blue);
  font-weight: 800; display: grid; place-items: center;
  margin-bottom: 0.75rem;
  font-family: 'Space Grotesk', Inter, sans-serif;
}
.bi-step h3 { font-size: 1.05rem; margin-bottom: 0.4rem; }
.bi-step p { font-size: 0.88rem; color: var(--text-mid); line-height: 1.55; }
.cta-box {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  background: linear-gradient(135deg, var(--blue-soft) 0%, #EEF4FF 100%);
  border: 1.5px solid var(--blue-border);
  border-radius: 24px;
  padding: 3.2rem 2rem;
}
.cta-box h2 { font-family: 'Space Grotesk', Inter, sans-serif; font-size: clamp(1.5rem, 3vw, 2.1rem); margin-bottom: 0.55rem; color: var(--text); }
.cta-box p { color: var(--text-light); max-width: 36rem; margin: 0 auto 1.4rem; line-height: 1.55; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 0.7rem; justify-content: center; }
@media (max-width: 900px) {
  .bi-hero { min-height: auto; padding: 6rem 5% 3rem; }
  .bi-hero .hero-inner { grid-template-columns: 1fr; gap: 2rem; }
  .bi-steps { grid-template-columns: 1fr; }
}