.hero {
  max-width: 1200px;
  margin: 72px auto 40px;
  padding: 0 22px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.95fr);
  gap: 56px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(44px, 6vw, 64px);
  line-height: 0.98;
  margin: 0 0 24px;
  letter-spacing: -0.03em;
}

.hero-accent { color: var(--umni-blue); }

.hero-lead {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 560px;
  line-height: 1.8;
}

.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-image {
  width: 100%;
  max-width: 560px;
  filter: drop-shadow(0 24px 48px rgba(31, 111, 255, 0.08));
}

.hero-cta {
  margin-top: 28px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.section-shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 22px;
}

.home-panel {
  background: rgba(255,255,255,0.92);
  border: 1px solid var(--line-soft);
  border-radius: 28px;
  box-shadow: var(--shadow-soft);
}

.how-strip {
  margin-top: 22px;
  padding: 28px;
}

.how-strip-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.how-step {
  padding: 22px;
  background: var(--bg-soft);
  border: 1px solid rgba(15, 23, 42, 0.06);
  border-radius: 22px;
}

.kicker {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(31,111,255,0.08);
  color: var(--umni-blue);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.how-step h3,
.system-item h3,
.requirement-panel h3,
.purchase-panel h3 {
  margin: 0 0 10px;
  font-size: 22px;
}

.how-step p,
.system-item p,
.requirement-panel p,
.purchase-panel p,
.principle p {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.75;
}

.system-stack {
  margin: 34px auto 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.system-item {
  padding: 28px;
  background: rgba(255,255,255,0.96);
  border: 1px solid var(--line-soft);
  border-radius: 24px;
  box-shadow: var(--shadow-soft);
  text-align: left;
}

.requirements-row {
  margin-top: 22px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 20px;
}

.requirement-panel,
.purchase-panel,
.principle {
  padding: 28px;
}

.requirement-list {
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
  display: grid;
  gap: 10px;
}

.requirement-list li {
  padding: 14px 16px;
  border-radius: 16px;
  background: var(--bg-soft);
  border: 1px solid rgba(15, 23, 42, 0.06);
  color: #1f2937;
}

.principle {
  max-width: 860px;
  margin: 32px auto 0;
  text-align: center;
}

.system-principle {
  color: var(--umni-blue);
  font-size: 24px;
  margin: 0 0 10px;
}

@media (max-width: 980px) {
  .hero,
  .requirements-row,
  .system-stack,
  .how-strip-grid {
    grid-template-columns: 1fr;
  }
  .hero {
    margin-top: 48px;
    gap: 32px;
  }
}