.page-section {
  padding: 2rem 0 3rem;
}

.page-section .container {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.page-section h1 {
  margin: 0;
  font-size: 2rem;
  color: var(--accent);
}

.page-section > .container > p {
  margin: 0;
  color: var(--muted);
  max-width: 70ch;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 0.25rem;
}

.os-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 260px;
  padding: 1.4rem;
  gap: 0.85rem;
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.os-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 34px rgba(15, 23, 42, 0.12);
  border-color: rgba(37, 99, 235, 0.22);
}

.os-icon-wrap {
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  background: rgba(37, 99, 235, 0.08);
  border: 1px solid rgba(37, 99, 235, 0.12);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.06);
}

.os-icon {
  width: 34px;
  height: 34px;
  display: block;
}

.os-card h2 {
  margin: 0;
  font-size: 1.25rem;
  color: var(--accent);
}

.os-card p {
  margin: 0;
  color: var(--muted);
}

.os-card .btn {
  width: 100%;
  max-width: 220px;
  margin-top: 0.25rem;
}

.muted {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  text-align: center;
}

/* Responsive */
@media (max-width: 900px) {
  .cards-grid {
    grid-template-columns: 1fr;
  }

  .os-card {
    min-height: 0;
  }
}

@media (max-width: 640px) {
  .page-section {
    padding: 1.25rem 0 2rem;
  }

  .page-section h1 {
    font-size: 1.7rem;
    text-align: center;
  }

  .page-section > .container > p {
    text-align: center;
  }

  .cards-grid {
    gap: 0.85rem;
  }

  .os-card {
    padding: 1.15rem;
  }

  .os-icon-wrap {
    width: 58px;
    height: 58px;
  }

  .os-icon {
    width: 30px;
    height: 30px;
  }

  .os-card .btn {
    max-width: 100%;
  }
}