:root {
  --e90-blue: #0d6efd;
}

/* Hero */
.article-hero {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 60%, #0f3460 100%);
  color: #fff;
  padding: 3rem 0 2.5rem;
}
.article-hero h1 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 700;
  line-height: 1.2;
}
.badge-meta {
  background: rgba(255,255,255,0.12);
  color: #fff;
  font-weight: 400;
  font-size: 0.8rem;
  padding: 0.35em 0.75em;
  border-radius: 99px;
}

/* Warning */
.alert-wichtig {
  border-left: 4px solid #dc3545;
}

/* Spec table */
.spec-table th {
  background: #f1f3f5;
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #495057;
}
.spec-table td {
  font-size: 0.9rem;
  vertical-align: middle;
}
.spec-table tr:hover td {
  background: #f8f9fa;
}

/* Parts grid */
.part-card {
  border: 1px solid #dee2e6;
  border-radius: 0.75rem;
  padding: 1rem 1.1rem;
  height: 100%;
  transition: box-shadow 0.2s, border-color 0.2s;
}
.part-card:hover {
  box-shadow: 0 4px 16px rgba(13,110,253,0.1);
  border-color: #86b7fe;
}
.part-card .part-icon {
  font-size: 1.5rem;
  color: var(--e90-blue);
  margin-bottom: 0.5rem;
}
.part-card h6 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}
.part-card p {
  font-size: 0.8rem;
  color: #6c757d;
  margin-bottom: 0.4rem;
}
.part-card a {
  font-size: 0.8rem;
  text-decoration: none;
}

/* Steps */
.step-card {
  border: none;
  border-radius: 0.75rem;
  background: var(--bs-tertiary-bg);
  margin-bottom: 1rem;
  transition: box-shadow 0.2s;
}
.step-card:hover {
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}
.step-number {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--e90-blue);
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.step-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}
.step-desc {
  font-size: 0.9rem;
  line-height: 1.65;
  margin-bottom: 0;
}
.step-tip {
  background: #fff8e1;
  border-left: 3px solid #ffc107;
  border-radius: 0 0.4rem 0.4rem 0;
  padding: 0.5rem 0.85rem;
  font-size: 0.82rem;
  color: #664d03;
  margin-top: 0.75rem;
}

/* Section headings */
.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #6c757d;
  margin-bottom: 1rem;
}

/* CTA box */
.cta-box {
  border-radius: 1rem;
  padding: 1.75rem;
  border: 1px solid #c0d6fd;
}