.cards-section{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:22px;
}

.index-cards{
  margin-top:18px;
}

.register-cards{
  margin-top:8px;
}

.card{
  display:block;
  position:relative;
  padding:26px;
  border-radius:28px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.08);
  backdrop-filter:blur(18px);
  transition:transform .28s ease, box-shadow .28s ease, background .28s ease, border-color .28s ease;
  color:inherit;
}

.card:hover{
  transform:translateY(-6px);
  box-shadow:0 14px 32px rgba(0,0,0,.18);
}

.course-card h3{
  font-size:1.4rem;
  margin-bottom:12px;
}

.course-card p{
  line-height:2;
  color:rgba(255,255,255,.85);
}

.course-link{
  text-decoration:none;
}

.btn-card{
  margin-top:18px;
  border:none;
  cursor:pointer;
  padding:12px 22px;
  border-radius:16px;
  color:#111;
  background:linear-gradient(180deg,#fefefe 0%,#cfcfcf 22%,#ffffff 46%,#8f8f8f 70%,#ffffff 100%);
  background-size:200% 200%;
  animation:titaniumFlow 7s linear infinite;
  box-shadow:0 0 14px rgba(255,255,255,.12);
  transition:transform .22s ease, box-shadow .22s ease;
}

.btn-card:hover{
  transform:translateY(-2px);
  box-shadow:0 0 20px rgba(255,255,255,.18);
}

.contact-grid{
  margin-top:8px;
}

.contact-card{
  min-height:170px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap:10px;
  text-align:center;
}

.contact-card p{
  line-height:1.9;
  opacity:.92;
}

.coach-summary,
.about-card{
  animation:fadeUp .6s ease both;
}

body.light .card,
body.light .coach-summary,
body.light .about-card{
  background:#DBD7D2;
  border-color:rgba(0,0,0,.06);
  color:#111;
}

body.light .course-card p,
body.light .hero-description{
  color:rgba(0,0,0,.76);
}

body.light .btn-card{
  color:#111;
}