/* ═══════════════════════════════════════════════════════
   TECHNICAL SPECIFICATION TABLE — LOCKED / DO NOT EDIT
   This file is isolated from style.css to prevent
   accidental changes during other CSS updates.
   ═══════════════════════════════════════════════════════ */

.product-tech-spec {
  width: 100%;
}

/* ── Tab bar ── */
.product-tech-spec__tabs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  background: #0d4a8b;
  border-radius: 10px 10px 0 0;
  padding: 8px 10px;
}
.product-tech-spec__tabs::-webkit-scrollbar { display: none; }

.product-tech-spec__tab {
  flex: 0 0 auto;
  white-space: nowrap;
  border: 1px solid rgba(255,255,255,0.20);
  background: rgba(255,255,255,0.10);
  color: rgba(255,255,255,0.75);
  border-radius: 6px;
  padding: 9px 20px;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.product-tech-spec__tab.is-active {
  background: #fff;
  border-color: #fff;
  color: #0d4a8b;
}

.product-tech-spec__tab:hover:not(.is-active) {
  background: rgba(255,255,255,0.20);
  color: #fff;
}

/* ── Panel ── */
.product-tech-spec__panel {
  border: 1px solid rgba(13,74,139,0.12);
  border-top: none;
  border-radius: 0 0 10px 10px;
  overflow: hidden;
}

/* ── Section header ── */
.product-tech-spec__section-title {
  padding: 10px 20px;
  background: #dce8f4;
  color: #0d3d6e;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  border-bottom: 1px solid #c5d9ed;
}

/* ── Spec row (3-column grid: label | unit | value) ── */
.product-tech-spec__row {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(60px, auto) minmax(140px, 1.4fr);
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  border-bottom: 1px solid rgba(13,74,139,0.08);
  background: #fff;
}

.product-tech-spec__row:nth-child(even) {
  background: #f8fafd;
}

.product-tech-spec__row:last-child {
  border-bottom: none;
}

.product-tech-spec__label {
  color: #1e3a5a;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
}

.product-tech-spec__unit {
  text-align: center;
  color: #8fa7c0;
  font-size: 12px;
  font-weight: 700;
  text-transform: none;
  letter-spacing: 0.03em;
}

.product-tech-spec__value {
  text-align: right;
  color: #0d3a6e;
  font-size: 15px;
  font-weight: 800;
  overflow-wrap: anywhere;
}

/* ── Tech notes ── */
.product-tech-notes {
  width: 100%;
  margin: 16px 0 0;
  display: grid;
  gap: 10px;
  padding: 16px 20px;
  border: 1px solid rgba(13,74,139,0.12);
  border-radius: 10px;
  background: #f8fafd;
}

.product-tech-notes h3 {
  margin: 0;
  color: #1e3a5a;
  font-size: 14px;
  font-weight: 900;
}

.product-tech-notes ul {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 8px;
  color: rgba(13,74,139,0.70);
  font-size: 13px;
  line-height: 1.5;
}

/* ── Responsive ── */
@media (max-width: 640px) {
  .product-tech-spec__row {
    grid-template-columns: minmax(140px, 1fr) minmax(50px, auto) minmax(100px, 1.2fr);
    gap: 8px;
    padding: 10px 16px;
  }
  .product-tech-spec__label {
    font-size: 13px;
  }
  .product-tech-spec__value {
    font-size: 14px;
  }
  .product-tech-spec__tabs {
    padding: 6px 8px;
    gap: 4px;
    border-radius: 8px 8px 0 0;
  }
  .product-tech-spec__tab {
    padding: 7px 12px;
    font-size: 12px;
    border-radius: 5px;
  }
}