.rd-design-guide {
  --rd-primary-color: #ef533f;
  --rd-primary-light: #fff5f3;
  --rd-bg-light: #f5f5f5;
  --rd-card-bg: #ffffff;
  --rd-text-dark: #1a1a1a;
  --rd-text-gray: #64748b;
  --rd-border-color: #e2e8f0;

  background-color: var(--rd-bg-light);
  padding: 80px 20px;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.rd-design-guide__container {
  max-width: 1000px;
  margin: 0 auto;
}

.rd-design-guide__header {
  margin-bottom: 40px;
}

.rd-design-guide__title {
  font-size: 32px;
  font-weight: 800;
  color: var(--rd-text-dark);
  margin: 0 0 12px;
  display: inline-block;
  position: relative;
  line-height: 1.2;
}

.rd-design-guide__title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 40px;
  height: 4px;
  background-color: var(--rd-primary-color);
  border-radius: 2px;
}

.rd-design-guide__metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.rd-design-guide__metric-card {
  background-color: var(--rd-card-bg);
  border-radius: 12px;
  padding: 24px;
  border: 1px solid var(--rd-border-color);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.rd-design-guide__metric-card:hover {
  transform: translateY(-2px);
  border-color: #cbd5e1;
}

.rd-design-guide__metric-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--rd-text-gray);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.rd-design-guide__metric-value {
  font-size: 22px;
  font-weight: 800;
  color: var(--rd-text-dark);
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.rd-design-guide__metric-unit {
  font-size: 14px;
  font-weight: 600;
  color: #94a3b8;
}

.rd-design-guide__specs {
  background-color: var(--rd-card-bg);
  border-radius: 12px;
  border: 1px solid var(--rd-border-color);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
  margin-bottom: 24px;
  overflow: hidden;
}

.rd-design-guide__spec-row {
  display: flex;
  border-bottom: 1px solid var(--rd-border-color);
}

.rd-design-guide__spec-row:last-child {
  border-bottom: none;
}

.rd-design-guide__spec-name {
  width: 30%;
  padding: 24px;
  background-color: #f8fafc;
  font-size: 13px;
  font-weight: 700;
  color: var(--rd-text-dark);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-right: 1px solid var(--rd-border-color);
  display: flex;
  align-items: center;
}

.rd-design-guide__spec-details {
  width: 70%;
  padding: 24px;
  font-size: 15px;
  color: #475569;
  line-height: 1.6;
  display: flex;
  align-items: center;
}

.rd-design-guide__advice {
  background-color: var(--rd-primary-light);
  border-radius: 12px;
  padding: 32px;
  border: 1px solid #ffe0db;
  border-left: 6px solid var(--rd-primary-color);
}

.rd-design-guide__advice-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.rd-design-guide__advice-icon {
  color: var(--rd-primary-color);
  width: 24px;
  height: 24px;
}

.rd-design-guide__advice-title {
  font-size: 18px;
  font-weight: 800;
  color: var(--rd-text-dark);
  margin: 0;
}

.rd-design-guide__advice-list {
  list-style: none;
  padding-left: 4px;
  margin: 0;
}

.rd-design-guide__advice-item {
  font-size: 14px;
  color: #334155;
  line-height: 1.7;
  margin-bottom: 12px;
  position: relative;
  padding-left: 18px;
}

.rd-design-guide__advice-item:last-child {
  margin-bottom: 0;
}

.rd-design-guide__advice-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  background-color: var(--rd-primary-color);
  border-radius: 50%;
}

.rd-design-guide__advice-strong {
  color: var(--rd-text-dark);
  font-weight: 700;
}

@media (max-width: 768px) {
  .rd-design-guide__metrics {
    grid-template-columns: repeat(2, 1fr);
  }

  .rd-design-guide__spec-row {
    flex-direction: column;
  }

  .rd-design-guide__spec-name {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--rd-border-color);
    padding: 16px 20px;
  }

  .rd-design-guide__spec-details {
    width: 100%;
    padding: 16px 20px;
  }

  .rd-design-guide__advice {
    padding: 24px 20px;
  }
}

@media (max-width: 480px) {
  .rd-design-guide__metrics {
    grid-template-columns: 1fr;
  }
}