.steps-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.step-card {
  text-align: center;
  padding: 28px 20px;
  border-radius: var(--radius-lg);
  background: var(--bg);
  border: 1px solid var(--gray-100);
  position: relative;
}

.step-num {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--blue-50);
  color: var(--blue-500);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 14px;
}

.step-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 6px;
}

.step-card p {
  font-size: 0.82rem;
  color: var(--gray-500);
  line-height: 1.6;
}

.step-arrow {
  position: absolute;
  right: -14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray-200);
  z-index: 2;
}

.step-card:last-child .step-arrow {
  display: none;
}

.code-section {
  background: var(--gray-900);
  color: var(--bg);
}

.code-section .section-label {
  color: #60A5FA;
}

.code-section .section-title {
  color: var(--bg);
}

.code-section .section-sub {
  color: var(--gray-400);
}

/* ── CONFIG OPTIONS ── */
.config-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 48px;
}

.config-card {
  padding: 28px;
  border-radius: var(--radius-lg);
  background: var(--bg);
  border: 1px solid var(--gray-100);
}

.config-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.config-card h3 code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  background: var(--blue-50);
  color: var(--blue-600);
  padding: 2px 8px;
  border-radius: 5px;
}

.config-card p {
  font-size: 0.88rem;
  color: var(--gray-500);
  line-height: 1.6;
}


/* ── ARCHITECTURE ── */
.arch-section {
  background: var(--gray-50);
  border-top: 1px solid var(--gray-100);
  border-bottom: 1px solid var(--gray-100);
}

.arch-section .section-label, .arch-section .section-title {
  text-align: center;
}

.arch-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 48px;
  flex-wrap: wrap;
}

.arch-box {
  padding: 24px 28px;
  border-radius: var(--radius-lg);
  text-align: center;
  min-width: 180px;
}

.arch-box.yours {
  background: var(--bg);
  border: 2px solid var(--gray-200);
}

.arch-box.stromcom {
  background: var(--blue-500);
  color: var(--bg);
  box-shadow: var(--shadow-lg);
}

.arch-box.data {
  background: var(--gray-900);
  color: var(--bg);
}

.arch-box h4 {
  color: var(--bg);
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.arch-box p {
  font-size: 0.78rem;
  opacity: 0.75;
}

.arch-box.yours h4 {
  color: var(--gray-900);
}

.arch-arrow {
  color: var(--gray-300);
  font-size: 1.4rem;
}