/* ---------------- Home page ---------------- */
.home-main{
  padding:48px clamp(16px, 4vw, 48px) 60px;
}
.home-stack{
  max-width:720px;
  margin:0 auto;
  display:flex;
  flex-direction:column;
  align-items:center;
  text-align:center;
}

.home-video{
  position:relative;
  width:100%;
  max-width:640px;
  padding-top:56.25%; /* 16:9, similar to the slide's video box */
  background:#111;
  border-radius:10px;
  overflow:hidden;
  box-shadow:0 14px 34px rgba(23,55,94,0.18);
}
.home-video iframe{
  position:absolute; inset:0;
  width:100%; height:100%;
  border:0;
}

.equation-link{
  display:inline-block;
  margin:44px 0 0;
  font-family:var(--font-display);
  font-weight:800;
  color:var(--pink);
  font-size:clamp(2rem, 5vw, 3.2rem);
  line-height:1.05;
  letter-spacing:.005em;
  text-shadow:0 3px 6px rgba(0,0,0,0.12);
  transition:transform .2s ease;
}
.equation-link:hover{ transform:translateY(-2px); }

.home-tagline{
  max-width:900px;
  margin:26px auto 0;
  text-align:center;
  color:var(--blue-dark);
  font-family:var(--font-display);
  font-weight:600;
  font-size:clamp(1.15rem, 2.6vw, 1.7rem);
}

.home-cta{
  display:flex;
  justify-content:center;
  margin:34px auto 0;
}
.home-cta .btn svg{ width:24px; height:24px; }