.home-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 3rem 2rem 4rem;
}

.hero { text-align: center; margin-bottom: 5rem; }
.hero-text { margin-bottom: 3rem; }
.hero-text h1 {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  line-height: 1.15;
  margin-bottom: 1rem;
}
.hero-text p { font-size: 1.1rem; max-width: 540px; margin: 0 auto; color: #666; }

.hero-cards { display: flex; gap: 2rem; justify-content: center; flex-wrap: wrap; }

.action-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  width: 280px;
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  cursor: pointer;
}
.action-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--orange);
}
.card-icon { font-size: 2.5rem; }
.action-card h2 { font-size: 1.5rem; }
.action-card p { font-size: 0.9rem; color: #777; line-height: 1.6; }
.card-btn {
  display: inline-block;
  margin-top: 0.5rem;
  background: var(--orange);
  color: var(--white);
  font-family: 'Syne', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.6rem 1.6rem;
  border-radius: 50px;
  transition: background var(--transition), transform var(--transition);
}
.action-card:hover .card-btn { background: #d4620a; transform: scale(1.04); }
.encode-card { border-top: 4px solid var(--orange); }
.decode-card { border-top: 4px solid var(--dark); }

.how-it-works { text-align: center; }
.how-it-works h2 { font-size: 2rem; margin-bottom: 2.5rem; }
.steps { display: flex; align-items: flex-start; justify-content: center; gap: 1rem; flex-wrap: wrap; }
.step {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  max-width: 220px;
  text-align: center;
  box-shadow: var(--shadow);
}
.step-num {
  font-family: 'Syne', sans-serif;
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--orange);
  opacity: 0.25;
  margin-bottom: 0.5rem;
}
.step h3 { font-size: 1rem; margin-bottom: 0.5rem; }
.step p { font-size: 0.85rem; color: #888; }
.step-arrow { font-size: 1.8rem; color: var(--orange); align-self: center; font-weight: 700; }

@media (max-width: 640px) {
  .step-arrow { display: none; }
  .hero-cards { flex-direction: column; align-items: center; }
}