/* 太陽光 DC配線ガイド — 図解・カード・比較表 */

.i3-wiring-principles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.85rem;
  margin: 1.5rem 0 2rem;
}

.i3-wiring-principle-card {
  border: 1px solid #c8dfd0;
  border-radius: 14px;
  padding: 1rem 0.85rem;
  background: linear-gradient(180deg, #f4fbf6 0%, #fff 100%);
  text-align: center;
}

.i3-wiring-principle-card__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: #2f7a4d;
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
}

.i3-wiring-principle-card__text {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.45;
  font-weight: 600;
  color: #1a3d28;
}

.i3-wiring-figure {
  margin: 1.75rem 0;
}

.i3-wiring-figure__title {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 0.75rem;
  color: #172033;
}

.i3-wiring-compare {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

@media (max-width: 640px) {
  .i3-wiring-compare {
    grid-template-columns: 1fr;
  }
}

.i3-wiring-compare__panel {
  border-radius: 14px;
  padding: 0.75rem;
  background: #fff;
}

.i3-wiring-compare__panel--bad {
  border: 2px solid #e8b4ae;
  background: #fff9f8;
}

.i3-wiring-compare__panel--good {
  border: 2px solid #b8dcc4;
  background: #f8fcf9;
}

.i3-wiring-compare__label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  margin-bottom: 0.5rem;
}

.i3-wiring-compare__label--bad {
  background: #fdecea;
  color: #a93226;
}

.i3-wiring-compare__label--good {
  background: #e8f5ec;
  color: #1e6b3a;
}

.i3-wiring-compare__caption {
  font-size: 0.88rem;
  color: #4a5568;
  margin: 0.65rem 0 0;
  line-height: 1.55;
}

.i3-wiring-compare svg {
  display: block;
  width: 100%;
  height: auto;
  max-height: 220px;
}

.i3-wiring-single svg {
  display: block;
  width: 100%;
  max-width: 640px;
  height: auto;
  margin: 0 auto;
}

.i3-wiring-table-wrap {
  overflow-x: auto;
  margin: 1.5rem 0;
  border-radius: 12px;
  border: 1px solid #d9e9dd;
}

.i3-wiring-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  min-width: 520px;
}

.i3-wiring-table th,
.i3-wiring-table td {
  padding: 0.75rem 0.85rem;
  border-bottom: 1px solid #e8f0ea;
  vertical-align: top;
  text-align: left;
}

.i3-wiring-table thead th {
  background: #eaf7ef;
  font-weight: 700;
  color: #1a3d28;
}

.i3-wiring-table tbody tr:last-child td {
  border-bottom: none;
}

.i3-wiring-table td:nth-child(2) {
  color: #8b3a34;
}

.i3-wiring-table td:nth-child(3) {
  color: #1e6b3a;
}

.i3-wiring-disclaimer {
  border-left: 4px solid #8a9bae;
  background: #f7f9f8;
  padding: 1rem 1.1rem;
  border-radius: 0 10px 10px 0;
  font-size: 0.9rem;
  color: #4a5568;
  margin: 2rem 0;
}

.i3-wiring-cta {
  background: linear-gradient(180deg, #eaf7ef 0%, #f4fbf6 100%);
  border: 1px solid #c8dfd0;
  border-radius: 16px;
  padding: clamp(1.25rem, 4vw, 1.75rem);
  margin: 2rem 0 1rem;
}

.i3-wiring-cta__links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.5rem 1rem;
  margin: 1rem 0 1.25rem;
  padding: 0;
  list-style: none;
}

.i3-wiring-cta__links a {
  color: #1e6b3a;
  text-decoration: none;
  font-size: 0.92rem;
}

.i3-wiring-cta__links a:hover {
  text-decoration: underline;
}

.i3-wiring-cta__btn {
  display: inline-block;
  background: #2f7a4d;
  color: #fff !important;
  font-weight: 700;
  padding: 0.75rem 1.35rem;
  border-radius: 10px;
  text-decoration: none !important;
}

.i3-wiring-cta__btn:hover {
  background: #256b41;
  color: #fff !important;
}